Positioning device for automatic charging of electric automobile

Abstract

The utility model relates to the technical field of charging piles, and discloses a positioning device for automatic charging of an electric automobile. Comprising a fixed cylinder, a charging gun which is installed in the fixed cylinder and can linearly move in the length direction of the fixed cylinder, a visual module which is installed above the fixed cylinder and has a rotational freedom degree in the vertical direction, and a driving mechanism which is installed above the fixed cylinder and can drive the visual module to rotate, and the visual module comprises a camera, a lens and a control system. When the visual module rotates to the front end of the fixed cylinder, the lens is located right in front of the charging gun. The utility model aims to provide the positioning device for automatic charging of the electric automobile, which is used for automatically identifying the position of the charging port of the electric automobile, the position and the angle of the charging gun do not need to be adjusted after the identification of the charging port is completed, the operation is simple, and the docking efficiency of the charging port is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of charging piles, in particular to a positioning device for automatic charging of electric vehicles. Background Art

[0002] With the rapid development and popularization of new energy vehicles, how to solve the problem of charging a large number of new energy vehicles has become an urgent problem to be solved. At present, most parking lots are specially set up for charging parking spaces for new energy vehicles. However, it is difficult to prevent new energy vehicles from parking but not charging and fuel vehicles from occupying charging parking spaces, which makes the utilization rate of charging piles in charging parking spaces low, and new energy vehicle owners need to spend a long time waiting to charge. To solve this problem, people have invented mobile charging piles and automatic charging robots for automatic docking of charging ports for charging. Generally, they install a visual module on the robotic arm to identify and locate the charging port of the new energy vehicle, and then adjust the position and angle of the charging gun according to the identification result, and then insert the charging gun into the charging port for charging. The operation is relatively complicated and the efficiency is low. Utility Model Content

[0003] The purpose of the utility model is to solve the above-mentioned problem and provide a positioning device for automatic charging of an electric vehicle, which is used to automatically identify the position of the charging port of the electric vehicle. After completing the charging port identification, there is no need to adjust the position and angle of the charging gun. The operation is simple and the charging port docking efficiency is improved.

[0004] In order to solve the above technical problems, the technical solution provided by the utility model is: a positioning device for automatic charging of electric vehicles, including a fixed cylinder, a charging gun installed in the fixed cylinder and capable of linear movement along the length direction of the fixed cylinder, a visual module installed above the fixed cylinder and having vertical rotation freedom, and a driving mechanism installed above the fixed cylinder and capable of driving the visual module to rotate, wherein the visual module includes a camera, a lens and a control system, and when the visual module rotates to the front end of the fixed cylinder, the lens is located directly in front of the charging gun.

[0005] As an improvement, the driving mechanism includes a rotating seat and a driving member arranged above the fixed cylinder, a pull rod connected to the driving member, a third rotating shaft installed on the pull rod, a first rotating shaft installed on the rotating seat, a rotating plate installed on the first rotating shaft, a second rotating shaft installed at the end of the rotating plate, and a connecting rod with both ends respectively installed on the second rotating shaft and the third rotating shaft, and the visual module is installed at the free end of the rotating plate.

[0006] As an improvement, the rotating plate includes a mounting portion for fixing the visual module and a rotating portion for connecting the first rotating shaft. A avoidance groove is provided above the fixed cylinder. There are two rotating seats that are symmetrically arranged on both sides of the avoidance groove. When the visual module rotates to the front end of the fixed cylinder, the rotating portion enters the avoidance groove.

[0007] As an improvement, a guide seat is installed above the fixing cylinder, and the pull rod passes through the guide seat and can slide in the guide seat.

[0008] As an improvement to the driving member, the driving member is an electromagnet, the pull rod is the electromagnet core, a torsion spring is installed on the first rotating shaft, one free end of the torsion spring is fixed on the rotating seat, and the other free end is fixed on the rotating plate. In a natural state, the visual module is located at the front end of the fixed cylinder under the action of the torsion spring.

[0009] As another improvement to the driving member, the driving member is an electromagnet and the pull rod is a cylinder piston rod.

[0010] As an improvement, the first rotating shaft and the second rotating shaft are not coplanar in the length direction of the rotating plate, and when the rotating plate rotates to a horizontal position, the position of the second rotating shaft is higher than the first rotating shaft.

[0011] Combined with the above technical solutions, compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model provides a positioning device for automatic charging of an electric vehicle. When identifying the charging port of the electric vehicle, the lens is located in front of the charging gun. During the process of the visual module identifying the charging port, the charging gun always remains collinear with the visual module. After the position of the charging port is confirmed, the driving mechanism drives the camera and the lens to rotate away from the front of the charging gun. At this time, the charging gun only needs to move in a straight line along the current position toward the charging port to be inserted into the charging port for charging. There is no need to recalculate and adjust the position of the charging gun. The operation is simple and the efficiency of charging port docking is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a structural schematic diagram of a positioning device for automatic charging of an electric vehicle.

[0014] Figure 2 The utility model is a schematic diagram of the state of a positioning device for automatic charging of an electric vehicle during charging.

[0015] Figure 3 It is a top view of a positioning device for automatic charging of an electric vehicle described in the utility model.

[0016] Figure 4 yes Figure 3 A partial enlarged schematic diagram of position A in the middle.

[0017] Among them: 1-fixed cylinder, 11-avoidance groove, 2-charging gun, 3-visual module, 31-camera, 32-lens, 4-driving mechanism, 41-rotating plate, 411-rotating part, 412-installing part, 42-rotating seat, 43-first rotating shaft, 44-torsion spring, 45-second rotating shaft, 46-connecting rod, 47-third rotating shaft, 48-guide seat, 49-driving member, 491-pull rod. DETAILED DESCRIPTION

[0018] In order to explain the technical features and the achieved purposes and effects of the present invention in detail, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0019] Please see attached Figure 1-4 A positioning device for automatic charging of an electric vehicle comprises a fixed cylinder 1, a charging gun 2 installed in the fixed cylinder 1 and capable of linear movement along the length direction of the fixed cylinder 1, a visual module 3 installed above the fixed cylinder 1 and having a vertical rotational degree of freedom, and a driving mechanism 4 installed above the fixed cylinder 1 and capable of driving the visual module 3 to rotate. The visual module 3 comprises a camera 31, a lens 32 and a control system (not shown in the figure). When the visual module 3 rotates to the front end of the fixed cylinder 1, the lens 32 is located directly in front of the charging gun 2.

[0020] In the above embodiment, the driving mechanism 4 is used to drive the visual module 3 to rotate so that it is located at the front end of the fixed cylinder 1 when the charging port is positioned and identified, and leaves the front end of the fixed cylinder 1 when the charging gun is docked so that the charging gun 2 can be inserted into the charging port by linear movement along the length direction of the fixed cylinder 1. The visual module 3 is used to collect and analyze the charging port image and feed it back to the robot arm, so that the position and angle of the fixed cylinder 1 are adjusted by the robot arm until the collected image matches the preset standard image. At this time, the charging port is located opposite the charging gun 1. The image collection and analysis of the visual module is a mature existing technology and will not be repeated here. Since the charging gun 2 always remains in line with the lens 32 when the visual module 3 identifies and locates the charging port, there is no need to calculate and adjust the parameters such as the position and angle of the charging gun 2 again after the identification and positioning is completed. The operation is simpler and the charging port docking efficiency is higher.

[0021] Preferably, the driving mechanism 4 includes a rotating seat 42 and a driving member 49 arranged above the fixed cylinder 1, a pull rod 491 connected to the driving member 49, a third rotating shaft 47 installed on the pull rod 491, a first rotating shaft 43 installed on the rotating seat 42, a rotating plate 41 installed on the first rotating shaft 43, a second rotating shaft 45 installed at the end of the rotating plate 41, and a connecting rod 46 with both ends respectively installed on the second rotating shaft 45 and the third rotating shaft 47, and the visual module 3 is installed at the free end of the rotating plate 41.

[0022] In the above embodiment, the driving member 49 drives the pull rod 491 and the connecting rod 46 to pull the rotating plate 41 to rotate and rotate the visual module 3 to the top of the fixed cylinder 1, thereby making room for the charging gun 2 to dock with the charging port.

[0023] Preferably, the rotating plate 41 includes a mounting portion 412 for fixing the visual module 3 and a rotating portion 411 for connecting the first rotating shaft 43. A avoidance groove 11 is provided above the fixed cylinder 1. There are two rotating seats 42 that are symmetrically arranged on both sides of the avoidance groove 11. When the visual module 3 rotates to the front end of the fixed cylinder 1, the rotating portion 411 enters the avoidance groove 11.

[0024] In the above embodiment, the avoidance groove 11 is opened above the fixing tube 1 so that the rotating part 411 of the rotating plate 41 enters the avoidance groove 11 during identification and positioning, which can shorten the linear movement distance of the charging gun 2 when docking with the charging port, making the overall structure of the positioning device more compact.

[0025] Preferably, a guide seat 48 is installed above the fixing cylinder 1 , and the pull rod 491 passes through the guide seat 48 and can slide in the guide seat 48 .

[0026] In the above embodiment, the guide seat 48 is used to guide the pull rod 491 so that the pull rod 491 can perform smooth linear motion under the action of the driving member 49.

[0027] In some of the embodiments, the driving member 49 is an electromagnet, the pull rod 491 is an electromagnet core, a torsion spring 44 is installed on the first rotating shaft 43, one free end of the torsion spring 44 is fixed on the rotating seat 42, and the other free end is fixed on the rotating plate 41. In a natural state, the visual module 3 is located at the front end of the fixed cylinder 1 under the action of the torsion spring 44.

[0028] In the above embodiment, an electromagnet is used as the driving member 49, which makes the control simpler. When the driving member 49 is energized and retracted, the pull rod 491 drives the visual module 3 to rotate. When the charging gun 2 is pulled out, the charging gun 2 is reset, the driving member 49 is powered off, and the visual module 3 rotates under the elastic force of the torsion spring 44, so that the lens 32 returns to the front of the charging gun.

[0029] In other embodiments, the driving member 49 is a cylinder, and the pull rod 491 is a cylinder piston rod.

[0030] In the above embodiment, a cylinder is used as the driving member 49. When the pull rod 491 is extended outward to the extreme position, the visual module 3 is rotated to the front of the fixed tube 1 so that the lens 32 and the charging gun 2 are in line. When the pull rod 491 is retracted inward to the extreme position, the visual module 3 is rotated to the top of the fixed tube 1, thereby making room for the charging gun 2 to dock with the charging port.

[0031] Preferably, the first rotating shaft 43 and the second rotating shaft 45 are not coplanar in the length direction of the rotating plate 41 , and when the rotating plate 41 rotates to a horizontal position, the second rotating shaft 45 is located higher than the first rotating shaft 43 .

[0032] In the above embodiment, the first rotating shaft 43 and the second rotating shaft 45 are not coplanar in the length direction of the rotating plate 41 and when the rotating plate 41 rotates to a horizontal position, the second rotating shaft 45 is located higher than the first rotating shaft 43 to avoid jamming.

[0033] It should be noted that the various embodiments in the present invention are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0034] The utility model and its implementation methods are described in detail above, and such description is not restrictive. The drawings show only some implementation methods of the utility model, and the actual structure is not limited thereto. Ordinary technicians in this field can be inspired by it and make various modifications, improvements and substitutions without departing from the concept of the utility model, which should all belong to the protection scope of the utility model.

Claims

1. A positioning device for automatic charging of electric vehicles, characterized in that: It includes a fixed cylinder, a charging gun installed in the fixed cylinder and capable of linear movement along the length direction of the fixed cylinder, a visual module installed above the fixed cylinder and having vertical rotation freedom, and a driving mechanism installed above the fixed cylinder and capable of driving the visual module to rotate. The visual module includes a camera, a lens and a control system. When the visual module rotates to the front end of the fixed cylinder, the lens is located directly in front of the charging gun.

2. The electric vehicle automatic charging positioning device according to claim 1, characterized in that: The driving mechanism includes a rotating seat and a driving member arranged above the fixed cylinder, a pull rod connected to the driving member, a third rotating shaft installed on the pull rod, a first rotating shaft installed on the rotating seat, a rotating plate installed on the first rotating shaft, a second rotating shaft installed at the end of the rotating plate, and a connecting rod with both ends respectively installed on the second rotating shaft and the third rotating shaft, and the visual module is installed at the free end of the rotating plate.

3. The electric vehicle automatic charging positioning device according to claim 2, characterized in that: The rotating plate includes a mounting portion for fixing the visual module and a rotating portion for connecting to the first rotating shaft. A avoidance groove is provided above the fixed cylinder. There are two rotating seats which are symmetrically arranged on both sides of the avoidance groove. When the visual module rotates to the front end of the fixed cylinder, the rotating portion enters the avoidance groove.

4. The electric vehicle automatic charging positioning device according to claim 2, characterized in that: A guide seat is installed above the fixing cylinder, and the pull rod passes through the guide seat and can slide in the guide seat.

5. The positioning device for automatic charging of electric vehicles according to claim 2, characterized in that: The driving member is an electromagnet, the pull rod is an electromagnet core, a torsion spring is installed on the first rotating shaft, one free end of the torsion spring is fixed on the rotating seat, and the other free end is fixed on the rotating plate. In a natural state, the visual module is located at the front end of the fixed cylinder under the action of the torsion spring.

6. The electric vehicle automatic charging positioning device according to claim 2, characterized in that: The driving member is a cylinder, and the pull rod is a cylinder piston rod.

7. The electric vehicle automatic charging positioning device according to claim 2, characterized in that: The first rotating shaft and the second rotating shaft are not coplanar in the length direction of the rotating plate. When the rotating plate rotates to a horizontal position, the position of the second rotating shaft is higher than the first rotating shaft.

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