Rainproof automatic docking charging device for unmanned equipment

Abstract

The utility model discloses a rainproof automatic docking charging device for unmanned equipment. The rainproof automatic docking charging device comprises a main charging module and an unmanned equipment mounting part, the main charging module comprises an installation base used for installing a telescopic execution mechanism and a sliding guide rail; the telescopic execution mechanism is used for connecting and driving the primary guide rod and the multi-contact floating plug to do linear motion; the sliding guide rail is used for guiding the movement of the first-stage guide rod; the first-stage guide rod is used for being matched with a first-stage guide socket of the unmanned equipment mounting part and performing first-stage guide on butt joint of the main charging module and the unmanned equipment mounting part; the multi-contact floating plug is used for being in butt joint with a rainproof multi-contact female head of an unmanned equipment mounting part and carrying out secondary guiding; the unmanned equipment mounting part comprises a first-stage guide socket matched with the first-stage guide rod; the rainproof multi-contact female head is connected with a power supply and signal transmission cable of unmanned equipment and is used for being in butt joint with the multi-contact floating plug to complete power supply and signal transmission functions.

Description

Technical Field

[0001] The utility model belongs to the field of electrical charging devices, in particular to a rainproof automatic docking charging device for unmanned equipment. Background Art

[0002] With the rapid development of unmanned equipment, drones and unmanned vehicles are gradually widely used in production and life. These unmanned equipment generally have dedicated parking garages. After completing outdoor operations or running out of energy, they need to return to the garage for storage or recharge. Existing drones and unmanned vehicles have limited endurance, and almost all of them need to return to the garage regularly for charging or battery replacement to ensure continuous operation. In some areas of use, unmanned equipment also requires clustered and automated operations, so its charging and battery replacement must be automated, fast, stable, reliable and low-cost.

[0003] Most mainstream electrical charging devices on the market do not have automatic rain protection functions and can only be protected from rain by additional electric or manual mechanical devices. The use of electric devices increases the complexity and weight of unmanned equipment, and is less suitable for some unmanned equipment with lightweight requirements, such as drones; the manual method does not meet the requirements of rapid and automated operation.

[0004] In addition, many unmanned equipment charging and battery replacement operations currently use robot operations. In order to ensure the accuracy of the operation, a visual assistance system is generally required. Although this solution can realize automatic charging and battery replacement operations, it is expensive and reduces reliability, making it difficult to meet the requirements of cluster deployment, stability and reliability, and low individual cost.

[0005] Some unmanned equipment uses wireless charging, but due to the limitations of existing technical conditions, its charging power and efficiency are low, which makes it difficult to meet the requirements of high-power charging of large unmanned equipment, such as large drones and unmanned work vehicles. At the same time, the wireless form can only realize the charging function, and it is difficult to realize the real-time power supply and status information transmission functions.

[0006] Therefore, there is currently no charging device on the market that can achieve fast and accurate docking and charging with unmanned equipment, is rainproof and dustproof, and simultaneously realizes charging, power supply or status information transmission functions, and does not use robot-assisted charging devices. Utility Model Content

[0007] The purpose of the utility model is to provide a rainproof automatic docking and charging device for unmanned equipment, which is used for fast and accurate docking and charging of unmanned equipment. The device has a rainproof function and can realize charging, power supply or signal transmission at the same time. It has a simple structure and does not use robots and visual systems for assistance.

[0008] The technical solution to achieve the purpose of this utility model is:

[0009] A rainproof automatic docking charging device for unmanned equipment, comprising a main charging module arranged on an unmanned equipment storage warehouse and an unmanned equipment installation part arranged on the unmanned equipment;

[0010] The main charging module comprises:

[0011] Mounting base for mounting telescopic actuator and sliding guide rail;

[0012] Telescopic actuator, used to connect and drive the primary guide rod and multi-contact floating plug to move linearly;

[0013] A sliding guide rail, used to guide the movement of the primary guide rod;

[0014] The primary guide rod is used to cooperate with the primary guide socket of the unmanned equipment installation part to provide primary guidance for the docking of the main charging module and the unmanned equipment installation part;

[0015] Multi-contact floating plug, used to connect with the rainproof multi-contact female plug of the unmanned equipment installation part and perform secondary guidance;

[0016] The unmanned equipment installation part includes:

[0017] The first-level guide socket is used to cooperate with the first-level guide rod;

[0018] The rainproof multi-contact female connector connects the charging, power supply and signal transmission cables of unmanned equipment and is used to dock with the multi-contact floating plug to complete the power supply and signal transmission functions.

[0019] Compared with the prior art, the utility model has the following significant advantages:

[0020] (1) The utility model is provided with a two-stage guiding structure and a flexible docking structure, which can realize a device for fast and accurate docking and charging with unmanned equipment. It can automatically adjust the alignment under a certain docking error, and does not require the support of a robot and a visual system.

[0021] (2) The device itself has rain and dust protection functions, and does not require additional electric or manual mechanical devices for rain protection, preventing unmanned equipment from electrical short circuits and failures caused by outdoor operations in the rain.

[0022] (3) It has multiple sets of contacts, which can simultaneously realize the charging, power supply or status information transmission functions of unmanned equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural diagram of the automatic docking charging device.

[0024] Figure 2 for Figure 1A partial enlarged view.

[0025] Figure 3 Exploded view of the structure of the rainproof multi-contact female connector. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] like Figure 1 As shown, a rainproof automatic docking charging device for unmanned equipment in this embodiment is composed of a main charging module arranged on the unmanned equipment storage warehouse and an unmanned equipment installation part arranged on the unmanned equipment. The main charging module is composed of a mounting base 1, a telescopic actuator 2, a sliding guide rail 3, a primary guide rod 4, and a multi-contact floating plug 6. Among them, the unmanned equipment installation part is composed of a primary guide socket 5 and a rainproof multi-contact female head 7. The electrical terminals on the rainproof multi-contact female head 7 are connected to the charging (charging the battery in the equipment), power supply (real-time power supply to the equipment electrical and instrumentation), and signal transmission cables of the unmanned equipment. The main charging module is installed in the unmanned equipment storage warehouse.

[0028] Combination Figure 2 The mounting base 1 is fixed to the unmanned equipment storage warehouse, the telescopic actuator 2 and the sliding guide rail 3 are fixed on the mounting base 1, the multi-contact floating plug 6 is connected to the telescopic actuator 2, the primary guide rod 4 is connected to the slider, the slider is connected to the telescopic actuator 2 and cooperates with the sliding guide rail 3, and the telescopic actuator 2 can simultaneously drive the multi-contact floating plug 6 and the primary guide rod 4 to move forward and backward. The multi-contact floating plug 6 is composed of a plug connection structure 8, a fixed screw 9, a spring 10, a plug seat 11, a secondary guide rod 12, and an elastic contact 13. The plug connection structure 8 and the plug seat 11 are both provided with four screw connection holes for installing the fixed screw 9 through nuts. One end of the plug connection structure 8 is connected to the telescopic actuator 2, and the other end is connected to the plug seat 11 through four fixed screws 9. The plug seat 11 can move axially along the fixed screw 9, and a spring 10 is provided between the plug connection structure 8 and the plug seat 11. The plug seat 11 is provided with an elastic contact 13 and a secondary guide rod 12. The elastic contact 13 has an elastic expansion of 1 to 2 mm, and is partially used as an electrical plug and partially as a signal plug. The left side of the upper edge and the right side of the lower edge of the plug socket 11 each have a positive insertion protrusion 14 to prevent misalignment and misinsertion; the plug socket 11 is made of insulating hard material to avoid internal wiring short circuits, and other components can be made of metal materials.

[0029] Combination Figure 3The rainproof multi-contact female connector 7 is composed of a female connector back plate 15, a junction box 16, a female connector front plate 19, a waterproof membrane 22, and a waterproof membrane pressing plate 24. The female connector back plate 15 is fixed to the rear end of the junction box 16. The junction box 16 is made of hard insulating material, and has multiple metal fixed contacts 17 on the front. The back of the contacts has electrical wiring holes for connecting power cables, signal cables, etc. of unmanned equipment. These cables enter the inside of the junction box 16 from the wiring port 18 at the bottom of the junction box 16. The outlet of the wiring port 18 is an internal threaded connector. The opening can be sealed with an external thread waterproof electrical connector; the junction box 16 is connected with a female front plate 19, which is made of hard insulating material. A contact slot 21 is opened on the female front plate 19 for each metal fixed contact 17 to prevent electrical short circuit between contacts. The holes at the protruding positions on both sides of the female front plate 19 are secondary guide sockets 20, which are used to cooperate with the secondary guide rods 12 on the multi-contact floating plug 6; the distance between the two secondary guide sockets 20 is greater than the length of the waterproof membrane 22 and the waterproof membrane pressing plate 24. The waterproof membrane 22 is the key to the rainproof function of the rainproof multi-contact female plug 7. The membrane is made of highly elastic anti-aging insulating material. A cross seam 23 is opened on the membrane corresponding to each metal fixed contact 17. The horizontal and vertical seam lengths of the cross seam 23 are equal to the side length of the metal fixed contact 17. When the inelastic contact 13 is inserted, the cross seam 23 is tightly closed, waterproof and dustproof; the waterproof membrane pressing plate 24 is a square flange pressing plate, which is used to press the waterproof membrane 22 onto the female front plate 19. The inner edge of the waterproof membrane pressure plate 24 has two positive insertion notches 25 for cooperating with the positive insertion protrusions 14 on the multi-contact floating plug 6. There are countersunk holes around it, and the waterproof membrane 22 can be fixed to the female head front plate 19 by fasteners.

[0030] When the unmanned equipment is locked in the warehouse, the primary guide socket 5 and the rainproof multi-contact female connector 7 of the automatic docking charging device are installed at the appropriate position of the unmanned equipment, and the main charging module is installed at the corresponding position in the warehouse through the bolt holes on the mounting base 1 so that it is aligned with the primary guide socket 5 and the rainproof multi-contact female connector 7 in the vertical plane, and a certain distance is maintained in the horizontal plane so as not to affect the entry and exit of the unmanned equipment. At the same time, this distance is within the travel range of the telescopic actuator 2 of the main charging module.

[0031] When the unmanned equipment returns to the warehouse after completing outdoor work, it is first re-locked in the original position by the homing device in the warehouse. At this time, the main charging module of the automatic docking charging device and the first-level guide socket 5 and the rainproof multi-contact female head 7 are basically aligned, and the automatic docking charging device can start working. The telescopic actuator 2 extends out and pushes the first-level guide rod 4 and the multi-contact floating plug 6 to move forward in a straight line under the limit of the sliding guide rail 3. The first-level guide rod 4 is a pointed round rod. The first-level guide rod 4 first enters the first-level guide socket 5, which is a trumpet shape. Since the main charging module is a cantilever rod with a certain flexibility, the first-level guide socket 5 can pull the first-level guide rod 4 together with the main charging module to a more accurate docking position through the gradually shrinking aperture. The docking error after the first-level guide socket 5 is guided can be controlled within 3mm.

[0032] Then, the telescopic actuator 2 drives the multi-contact floating plug 6 to continue moving forward, and the secondary guide rod 12 on the plug contacts the secondary guide socket 20 on the rainproof multi-contact female connector 7. The secondary guide rod 12 is a pointed round rod, which can ensure that the pointed tip is inserted into the secondary guide socket 20 on the basis of the primary guide. As the radius of the secondary guide rod 12 increases to be consistent with the inner diameter of the secondary guide socket 20, the multi-contact floating plug 6 gradually and accurately docks with the rainproof multi-contact female connector 7.

[0033] The multi-contact floating plug 6 and the plug connection structure 8 are connected at their four corners by four sets of fixed screws 9, and are supported by a flat-bottomed spring 10 in the middle. The screw diameter of the fixed screw 9 is slightly smaller than its mounting hole, so that the multi-contact floating plug 6 can move freely in a certain space. At the same time, due to the elastic support of the spring 10, in a static state, the multi-contact floating plug 6 and the plug connection structure 8 can remain in the same straight line and have a certain toughness. Once subjected to external force, the multi-contact floating plug 6 can have a certain deformation margin in all directions. When there is a slight deviation in the spatial angle of docking, it is ensured that the working plane of the multi-contact floating plug 6 and the rainproof multi-contact female head 7 are always parallel. At the same time, since all the elastic contacts 13 on the plug also have elastic margins, it is effectively guaranteed that all elastic contacts can be in good contact with the metal fixed contacts 17 on the rainproof multi-contact female head 7, and there will be no mechanical jamming or poor electrical contact.

[0034] The positive insertion protrusion 14 and the positive insertion notch 25 provided on the automatic docking charging device are asymmetrically designed sockets, which cannot be inserted at any deflection angle except the correct position, thereby ensuring the correct docking of the multi-contact floating plug 6 and the rainproof multi-contact female plug 7.

[0035] The automatic docking and charging device has multiple sets of contacts, which can simultaneously perform the functions of charging, powering and signal transmission of unmanned equipment after docking.

[0036] After charging is completed, the rainproof multi-contact female connector 7 goes out with the unmanned equipment for operation, the elastic contacts 13 on the multi-contact floating plug 6 are pulled out from the rainproof multi-contact female connector 7, and the cross seams 23 on the waterproof membrane 22 are automatically closed due to the high elasticity of the material, isolating the external rain and dust, achieving the purpose of rainproof and dustproof, and preventing electrical short circuits.

Claims

1. A rainproof automatic docking charging device for unmanned equipment, characterized in that: It includes a main charging module arranged on the unmanned equipment storage warehouse and an unmanned equipment installation part arranged on the unmanned equipment; The main charging module comprises: Mounting base for mounting telescopic actuator and sliding guide rail; Telescopic actuator, used to connect and drive the primary guide rod and multi-contact floating plug to move linearly; A sliding guide rail, used to guide the movement of the primary guide rod; The primary guide rod is used to cooperate with the primary guide socket of the unmanned equipment installation part to provide primary guidance for the docking of the main charging module and the unmanned equipment installation part; Multi-contact floating plug, used to connect with the rainproof multi-contact female plug of the unmanned equipment installation part and perform secondary guidance; The unmanned equipment installation part includes: The first-level guide socket is used to cooperate with the first-level guide rod; The rainproof multi-contact female connector connects the charging, power supply and signal transmission cables of unmanned equipment and is used to dock with the multi-contact floating plug to complete the charging, power supply and signal transmission functions.

2. The rainproof automatic docking and charging device for unmanned equipment according to claim 1, characterized in that: The multi-contact floating plug consists of a plug connection structure, a fixed screw, a spring, a plug socket, a secondary guide rod, and an elastic contact; the plug connection structure and the plug socket are both provided with a plurality of connection holes for installing the fixed screw, and the size of the connection holes is larger than the diameter of the fixed screw; one end of the plug connection structure is connected to the telescopic actuator, and the other end is connected to the plug socket through a plurality of fixed screws; a spring is provided between the plug connection structure and the plug socket; the plug socket is provided with an elastic contact and a secondary guide rod, and the secondary guide rod is used to cooperate with the secondary guide socket on the rainproof multi-contact female head.

3. The rainproof automatic docking and charging device for unmanned equipment according to claim 2, characterized in that: The multi-contact floating plug and the plug connection structure are connected at four corners by four sets of fixing screws, and the middle of the two is supported by a flat bottom spring.

4. The rainproof automatic docking and charging device for unmanned equipment according to claim 2, characterized in that: The plug socket is provided with a positive insertion protrusion on the left side of the upper edge and the right side of the lower edge, respectively, for matching with the positive insertion notch on the rainproof multi-contact female connector.

5. The rainproof automatic docking and charging device for unmanned equipment according to claim 2, characterized in that: The stage guide rod is a pointed round rod.

6. The rainproof automatic docking and charging device for unmanned equipment according to claim 1, characterized in that: The rainproof multi-contact female connector is composed of a female connector back plate, a junction box, a female connector front plate, a waterproof membrane, and a waterproof membrane pressing plate; The female backplane is fixed to the rear end of the junction box, and the junction box is provided with a plurality of metal fixed contacts. The back of the metal fixed contacts has electrical wiring holes for connecting the power cables and signal cables of the unmanned equipment; the junction box is connected to the female front plate, and a contact slot is opened on the female front plate for each metal fixed contact; the waterproof membrane pressing plate is used to press the waterproof membrane onto the female front plate, and a cross seam is opened on the waterproof membrane corresponding to the position of each metal fixed contact.

7. The rainproof automatic docking and charging device for unmanned equipment according to claim 6, characterized in that: The protruding positions on both sides of the female head front plate are provided with secondary guide sockets for cooperating with the secondary guide rods on the multi-contact floating plug.

8. The rainproof automatic docking and charging device for unmanned equipment according to claim 1, characterized in that: The first-level guide socket is in a trumpet shape, and the first-level guide rod is a pointed round rod.

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