Equipment charging temporary storage device and charging temporary storage control method thereof

Abstract

The invention discloses an equipment charging temporary storage device and a charging temporary storage control method thereof.The equipment charging temporary storage device comprises a charging cabinet body, fireproof doors are arranged at a front access port and a rear access port of the charging cabinet body respectively, and a trolley carrying and sending-out mechanism is arranged at the bottom end of the interior of the charging cabinet body; the trolley carrying and sending-out mechanism comprises a trolley carrying plate, sliding wheels, a sliding guide rail and a carrying plate movement driving device, and a thermal imager and / or a smoke detector are / is arranged in the charging cabinet body. The AGV charging cabinet is reasonable in structural design, the AGV can enter the charging cabinet body to be charged, the charging cabinet body can form a closed space to protect the AGV after the fireproof door is closed, the good waterproof and lightning protection effects are achieved, safe charging temporary storage of the AGV can be achieved, and when it is detected that charging abnormity happens to the AGV in the charging process, the charging cabinet body can be used for charging the AGV. The power supply of the charging pile can be cut off, and the AGV trolley can be moved out to a specified position outside the charging cabinet body, so that the safety of the charging pile and / or a circuit in the cabinet is protected.

Description

Technical Field

[0001] The present invention relates to the technical field of charging protection equipment, and more specifically, to a device charging temporary storage device and a charging temporary storage control method thereof. Background Art

[0002] AGV (Automated Guided Vehicles) is an unmanned vehicle equipped with an automatic guidance system, which can ensure that the AGV can automatically travel along a predetermined route without the need for manual guidance and automatically transport materials from the starting point to the destination.

[0003] However, the AGV requires lithium batteries to provide power for it, so existing AGVs are equipped with charging piles or charging stations. Lithium batteries are flammable and explosive. During the charging process, battery fires and explosions often occur, causing harm to personnel, charging piles, charging stations or other surrounding equipment. Therefore, there is an urgent need for a device that can protect the AGV from charging. However, existing charging piles or charging stations do not have a charging anomaly detection function, and cannot send the AGV to a designated location after detecting an anomaly. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned defects in the prior art and provide a device for temporarily charging an AGV and a method for temporarily charging the device.

[0005] To achieve the above-mentioned purpose, the first aspect of the present invention provides a device charging temporary storage device, including a charging cabinet, wherein fire doors are respectively provided at the front and rear entrances and exits of the charging cabinet, and at least one group of AGV carts containing rechargeable batteries are provided at the inner bottom end of the charging cabinet, and a cart transport and delivery mechanism for sending the AGV cart out of the charging cabinet when a charging abnormality is detected in the AGV cart. Each group of trolley transport and delivery mechanisms includes a trolley carrier, a sliding wheel, a sliding guide rail, and a carrier plate moving drive device. The sliding wheel is installed at the bottom of the trolley carrier, and the sliding guide rail is installed at the inner bottom end of the charging cabinet. The sliding wheel is movably installed on the sliding guide rail. The carrier plate moving drive device is transmission-connected to the trolley carrier and can drive the trolley carrier to move forward and backward, so that the trolley carrier enters or moves out of the charging cabinet. The interior of the charging cabinet is provided with a thermal imager for detecting the temperature of the AGV cart during charging and / or a smoke detector for detecting the smoke concentration in the charging cabinet.

[0006] Preferably, the charging cabinet includes a frame, side wall panels, a top plate and a bottom plate, the side wall panels are installed on the four sides of the frame, the top plate is installed on the top of the frame, and the bottom plate is installed on the bottom of the frame, the side wall panels and the top plate both adopt a three-layer plywood structure, the three-layer plywood structure includes two outer steel plates and a flame-resistant interlayer located between the two outer steel plates, and the bottom beam, top beam, column and shear beam of the frame are all made of 3-6 mm thick square steel.

[0007] Preferably, the gaps in the charging cabinet and the gaps between the charging cabinet and the fire door are filled with fireproof glue, and the bottom plate and inner sides of the bottom beam of the charging cabinet are sprayed with anti-corrosion materials.

[0008] Preferably, the fire door is configured as an automatic fire door whose opening and closing are automatically controlled by a PLC.

[0009] Preferably, the carrier plate moving drive device includes a servo motor, a chain, a driving sprocket, a driven sprocket and a connecting seat, the rotating shaft of the servo motor is connected to the driving sprocket, the chain is installed between the driving sprocket and the driven sprocket, and the chain is connected to the bottom of the trolley carrier plate through the connecting seat.

[0010] Preferably, a power contact connection module is provided between one end of the trolley board and the bottom of the charging cabinet, for achieving contact connection between the charging pile installed inside the charging cabinet and the power supply of the charging cabinet.

[0011] Preferably, the charging cabinet is grounded.

[0012] Preferably, a camera, lighting equipment and temperature and humidity detectors are provided inside the charging cabinet, and an audible and visual alarm and an electric control box are provided outside the charging cabinet.

[0013] Preferably, slopes for connecting to the ground are respectively provided below the front and rear entrances and exits of the charging cabinet, a hanging ring is provided on the top of the charging cabinet, and moving wheels are provided on the bottom of the charging cabinet.

[0014] A second aspect of the present invention provides a charging temporary storage control method of a device charging temporary storage device, comprising the following steps:

[0015] When the equipment charging temporary storage device receives a signal that the AGV needs to be charged, it controls the fire door on the front side to open;

[0016] When the AGV enters the trolley carrier of the trolley delivery mechanism inside the charging cabinet, the fire door on the front side is controlled to close, and the charging pile inside the charging cabinet is controlled to connect the AGV to charge;

[0017] When the equipment charging temporary storage device receives the signal that the AGV is fully charged, it controls the fire door on the front side to open and the charging pile inside the charging cabinet to cut off the power, allowing the AGV to disconnect the charging interface and drive out of the charging cabinet, and then controls the fire door on the front side to close;

[0018] When the thermal imager detects that the AGV has an abnormal temperature during charging and / or the smoke detector detects that the smoke concentration in the charging cabinet exceeds the alarm concentration, the fire door on the rear side is controlled to open, the power supply of the charging pile is disconnected simultaneously, and the carrier plate moving drive device drives the AGV on the carrier plate to move out of the charging cabinet, and then the fire door on the rear side is controlled to close.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The structural design of the present invention is reasonable. The AGV car can enter the charging cabinet for charging. After the fire door of the charging cabinet is closed, it can form an enclosed space to protect the AGV car, and has a good waterproof and lightning protection effect. The AGV car can be safely charged and temporarily stored. When it is detected that a charging abnormality occurs in the AGV car during the charging process, the power supply of the charging pile can be disconnected, and the AGV car can be moved to a designated position outside the charging cabinet to protect the safety of the charging pile and / or circuit in the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 The structure of the device charging temporary storage device provided by the embodiment of the present invention is shown in FIG. Figure 1 ;

[0023] Figure 2 The structure of the device charging temporary storage device provided by the embodiment of the present invention is shown in FIG. Figure 2 ;

[0024] Figure 3 is a framework diagram of a charging cabinet provided in an embodiment of the present invention;

[0025] Figure 4 It is an exploded view of the trolley transport and delivery mechanism provided by an embodiment of the present invention;

[0026] Figure 5 It is an enlarged view of the bottom partial structure of the trolley transport and delivery mechanism provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Please refer to Figure 1 The embodiment of the present invention provides a temporary storage device for charging equipment, including a fireproof charging cabinet 1, an AGV trolley containing a rechargeable battery is provided at the bottom of the charging cabinet 1, and a trolley transporting and sending mechanism 3 is provided to send the AGV trolley out of the charging cabinet 1 when abnormal charging of the AGV trolley is detected. The components of this embodiment are described in detail below in conjunction with the accompanying drawings.

[0029] like Figure 1 , Figure 2 and Figure 3 As shown, the charging cabinet 1 may include a frame 11, side wall panels 12, a top panel 13 and a bottom panel 14, the side wall panels 12 are installed on the sides of the frame 11, the top panel 13 is installed on the top of the frame 11, and the bottom panel 14 is installed on the bottom of the frame 11.

[0030] In this embodiment, the bottom beam, top beam, columns and shear beams of the frame 11 can all be made of 3-6 mm thick square steel, with a maximum partition of 4.5 meters, welded into a basic frame with a solid structure and a certain explosion-proof strength.

[0031] Preferably, the side wall plate 12 and the top plate 13 can both adopt a fireproof three-layer sandwich structure, wherein the three-layer sandwich structure can include two outer steel plates and a flame-resistant sandwich layer located between the two outer steel plates. In addition, the bottom plate 14 can be a steel structure, and the top plate can be a steel plate integrated and fully welded.

[0032] In order to further improve the fireproof performance, the gaps of the charging cabinet 1 and the gaps between the charging cabinet 1 and the fireproof door 2 can be filled with fireproof glue. Once a fire occurs and the fireproof glue is heated, it can expand and seal to isolate the air. In addition, the bottom plate 14 of the charging cabinet 1 and the inner side of the bottom beam can also be sprayed with anti-corrosion materials.

[0033] like Figure 1As shown, the front and rear entrances and exits of the charging cabinet 1 are respectively provided with fire doors 2, which can be preferably set as electric fire shutter doors whose switches are automatically controlled by PLC, and the fire doors can be designed according to the group standard GB12955. When the AGV needs to charge, the door can be opened, and when it is detected that the AGV has completely entered the cabinet, the door is closed, and the cabinet is completely closed during charging to achieve safe charging and temporary storage.

[0034] The fireproof wall panels and fireproof doors of this embodiment can both meet the fire resistance grade requirements.

[0035] During specific implementation, the charging cabinet 1 is grounded, which can play an anti-static function. The frame 11 of the charging cabinet 1 is welded from steel plates and is well grounded, which can play a role in lightning protection and anti-static.

[0036] like Figure 1 , Figure 4 and Figure 5 As shown, the trolley transport and delivery mechanism 3 can preferably be provided with two groups, and both groups of trolley transport and delivery mechanisms 3 can include a trolley carrier plate 31, a sliding wheel 32, a sliding guide rail 33, and a carrier plate moving drive device 34. The sliding wheel 32 is installed at the bottom of the trolley carrier plate 31, and the sliding guide rail 33 is installed at the inner bottom end of the charging cabinet 1. The sliding guide rail 33 can be set in a concave shape and made of stainless steel. The sliding wheel 32 is movably installed on the sliding guide rail 33. The carrier plate moving drive device 34 is transmission-connected to the trolley carrier plate 31 and can drive the trolley carrier plate 31 to move forward and backward, so that the trolley carrier plate 31 enters or moves out of the charging cabinet 1.

[0037] Specifically, the carrier plate moving driving device 34 may include a servo motor 341, a chain 342, a driving sprocket 343, a driven sprocket 344 and a connecting seat 345. The rotating shaft of the servo motor 341 is connected to the driving sprocket 343. The chain 342 is installed between the driving sprocket 343 and the driven sprocket 344. The chain 342 is connected to the bottom of the trolley carrier plate 31 through the connecting seat 345. The servo motor 341 can drive the chain 342 to rotate, thereby driving the trolley carrier plate 31 to move forward and backward. Among them, the carrier plate moving driving device 34 adopts a chain transmission component, and the operation is more stable.

[0038] like Figure 5 As shown, a power contact connection module 6 (such as a contact connector, etc.) is provided between one end of the trolley board 31 and the bottom of the charging cabinet 1, which is used to achieve a contact connection between the charging pile installed inside the charging cabinet 1 and the power supply of the charging cabinet 1. The power connection between the charging pile and the cabinet is set as a contact connection, so that the power supply can be quickly cut off when a charging abnormality occurs.

[0039] like Figure 2As shown, the interior of the charging cabinet 1 is provided with a thermal imager 4 for detecting the temperature of the AGV during charging and a smoke detector 5 for detecting the smoke concentration in the charging cabinet 1. In addition, the interior of the charging cabinet 1 can also be provided with a camera 7, a lighting device 8 and a temperature and humidity detector 9.

[0040] like Figure 1 and Figure 3 As shown, an audible and visual alarm 10 and an electric control box 21 may be provided outside the charging cabinet 1 .

[0041] like Figure 1 As shown, a slope 22 for connecting to the ground can be provided under the front and rear entrances and exits of the charging cabinet 1, which facilitates the AGV to enter and exit the charging cabinet.

[0042] like Figure 1 As shown, a lifting ring 23 is provided on the top of the charging cabinet 1, which is convenient for lifting and carrying. In addition, a moving wheel 24 can also be provided on the bottom of the charging cabinet 1.

[0043] According to the needs, two sets of charging mechanisms can be installed in the charging cabinet. The rational use of the cabinet frame can improve the utilization rate of the cabinet and reduce the floor space. Among them, the charging pile of the charging mechanism is the charging pile that the AGV car is equipped with when it leaves the factory.

[0044] The charging temporary storage control method of the equipment charging temporary storage device comprises the following steps:

[0045] When the equipment charging temporary storage device receives a signal that the AGV needs to be charged, it controls the fire door 2 on the front side to open;

[0046] When the AGV enters the trolley carrier plate 31 of the trolley transport and delivery mechanism 3 inside the charging cabinet 1, the fire door 2 on the front side is controlled to close, and the charging pile inside the charging cabinet 1 is controlled to connect with the AGV for charging;

[0047] When the equipment charging temporary storage device receives the full power signal of the AGV, it controls the fire door 2 on the front side to open and controls the charging pile inside the charging cabinet 1 to cut off the power, so that the AGV can disconnect the charging interface and drive out of the charging cabinet 1, and then controls the fire door 2 on the front side to close;

[0048] When the thermal imager detects that the AGV has an abnormal temperature during the charging process and / or the smoke detector detects that the smoke concentration in the charging cabinet 1 exceeds the alarm concentration, the fire door 2 on the rear side is controlled to open, and the power supply of the charging pile is disconnected simultaneously. The carrier plate moving drive device 34 drives the AGV on the carrier plate 31 to move out of the charging cabinet 1, and then the fire door 2 on the rear side is controlled to close.

[0049] Specifically, the charging control scheme of the AGV car is as follows:

[0050] 1. Normal charging process:

[0051] 1. When the AGV needs to be charged, it sends a signal to the master control PLC, and the master control PLC sends a signal to the cabinet PLC. The cabinet PLC controls to open the front fire door. A photoelectric sensor can be used in the cabinet to confirm that the fire door has been opened, and then feedback to the master control PLC to control the AGV to enter.

[0052] 2. The AGV enters the charging cabinet. According to the path signal of the AGV, it senses that it has completely entered the charging cabinet and sends a signal to the master control PLC. The master control PLC forwards the cabinet PLC signal. The cabinet PLC controls the front fire door to close. The photoelectric sensor confirms that the doors are closed and then feeds back to the master control PLC to control the AGV to access the charging pile.

[0053] 3. The AGV car automatically connects to the charging pile interface. The AGV car sends a signal to the master control PLC. The master control PLC sends a signal to cut off the power of the AGV car. The master control PLC synchronously forwards the cabinet PLC, and the cabinet PLC controls the charging pile to power on.

[0054] 4. When the AGV is fully charged, it sends a signal to the master control PLC. The master control PLC forwards the full charge signal from the cabinet PLC. The cabinet PLC controls the charging pile to cut off the power, the car disconnects the charging interface, and the master control PLC sends a signal to the cabinet PLC to open the front fire door.

[0055] 5. The photoelectric sensor confirms that the front fire door is open, and then feeds back to the master control PLC to control the AGV to drive out. The master control PLC starts the AGV to drive out of the charging cabinet. According to the path signal of the car, the master control PLC sends a signal to the cabinet PLC, and the front fire door is closed. The photoelectric sensor confirms that the front fire door is closed, and then feeds back to the cabinet PLC.

[0056] 2. Abnormal alarm process:

[0057] 1. When the AGV is charging, the temperature detected by the thermal imager is compared with the outside temperature. The relative temperature rises abnormally quickly, triggering an alarm signal indicating abnormal increase in charging temperature.

[0058] 2. The smoke detector detects that the smoke concentration in the cabinet exceeds the alarm concentration and triggers the smoke alarm signal.

[0059] 3. Alarm Processing Procedure

[0060] 1. Upon receiving the alarm signal, the cabinet PLC turns on the sound and light alarm lights and sends an alarm signal to the master control PLC.

[0061] 2. The cabinet PLC controls the rear fire door to open and the power supply of the synchronous charging pile is disconnected.

[0062] 3. The charging pile interface is disconnected from the AGV trolley, the photoelectric sensor determines that the rear fire door is open, and the cabinet PLC starts the servo motor to push the AGV trolley out of the cabinet.

[0063] 4. The photoelectric sensor senses that the AGV has been fully pushed out and sends a signal to the cabinet PLC, which then closes the rear fire door.

[0064] 5. After the alarm is generated, the cabinet will suspend charging. Charging can only continue after the personnel handles and confirms and resets the alarm.

[0065] 6. Once the alarm is confirmed to be cancelled, the staff can return the AGV to the charging cabinet.

[0066] 4.Operation procedures of other equipment

[0067] 1. The light will turn on when the master control PLC sends a charging signal for the AGV. The light will remain on when the AGV is in the cabinet, and the emergency light will turn on after a power outage.

[0068] 2. The surveillance camera is connected to the master control PLC and is kept on from the moment it is powered on, maintaining the status inside the monitoring cabinet.

[0069] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A device for charging and temporarily storing equipment, characterized in that: It includes a charging cabinet, and fireproof doors are respectively provided at the front and rear entrances and exits of the charging cabinet. The inner bottom end of the charging cabinet is provided with at least one group of AGV carts containing rechargeable batteries, and a cart transporting and sending mechanism that sends the AGV cart out of the charging cabinet when abnormal charging of the AGV cart is detected. Each group of cart transporting and sending mechanisms includes a cart carrier, a sliding wheel, a sliding guide rail, and a carrier moving drive device. The sliding wheel is installed at the bottom of the cart carrier, and the sliding guide rail is installed at the inner bottom end of the charging cabinet. The sliding wheel is movably installed on the sliding guide rail. The carrier moving drive device is transmission-connected with the cart carrier and can drive the cart carrier to move forward and backward, so that the cart carrier enters or moves out of the charging cabinet. The interior of the charging cabinet is provided with a thermal imager for detecting the temperature of the AGV cart during charging and / or a smoke detector for detecting the smoke concentration in the charging cabinet.

2. A device charging temporary storage device according to claim 1, characterized in that: The charging cabinet includes a frame, side wall panels, a top plate and a bottom plate. The side wall panels are installed on the four sides of the frame, the top plate is installed on the top of the frame, and the bottom plate is installed on the bottom of the frame. The side wall panels and the top plate both adopt a three-layer plywood structure, and the three-layer plywood structure includes two outer steel plates and a flame-resistant interlayer located between the two outer steel plates. The bottom beam, top beam, column and shear beam of the frame are all made of 3-6 mm thick square steel.

3. A device charging temporary storage device according to claim 2, characterized in that: The gaps in the charging cabinet and the gaps between the charging cabinet and the fire door are filled with fireproof glue, and the inner sides of the bottom plate and bottom beam of the charging cabinet are sprayed with anti-corrosion materials.

4. The device charging temporary storage device according to claim 1, characterized in that: The fire door is configured as an automatic fire door whose opening and closing are automatically controlled by a PLC.

5. The device charging temporary storage device according to claim 1, characterized in that: The carrier plate moving drive device includes a servo motor, a chain, a driving sprocket, a driven sprocket and a connecting seat. The rotating shaft of the servo motor is connected to the driving sprocket. The chain is installed between the driving sprocket and the driven sprocket. The chain is connected to the bottom of the trolley carrier plate through the connecting seat.

6. The device charging temporary storage device according to claim 1, characterized in that: A power contact connection module is provided between one end of the trolley board and the bottom of the charging cabinet, which is used to achieve contact connection between the charging pile installed in the charging cabinet and the power supply of the charging cabinet.

7. The device charging temporary storage device according to claim 1, characterized in that: The charging cabinet is grounded.

8. The device charging temporary storage device according to claim 1, characterized in that: The interior of the charging cabinet is respectively provided with a camera, lighting equipment and temperature and humidity detectors, and the exterior of the charging cabinet is provided with an audible and visual alarm and an electric control box.

9. The device charging temporary storage device according to claim 1, characterized in that: Slopes for connecting to the ground are respectively provided below the front and rear entrances and exits of the charging cabinet, a hanging ring is provided on the top of the charging cabinet, and moving wheels are provided on the bottom of the charging cabinet.

10. A charging temporary storage control method for a device charging temporary storage device according to any one of claims 1 to 9, characterized in that: The following steps are involved: When the equipment charging temporary storage device receives a signal that the AGV needs to be charged, it controls the fire door on the front side to open; When the AGV enters the trolley carrier of the trolley delivery mechanism inside the charging cabinet, the fire door on the front side is controlled to close, and the charging pile inside the charging cabinet is controlled to connect the AGV to charge; When the equipment charging temporary storage device receives the signal that the AGV is fully charged, it controls the fire door on the front side to open and the charging pile inside the charging cabinet to cut off the power, allowing the AGV to disconnect the charging interface and drive out of the charging cabinet, and then controls the fire door on the front side to close; When the thermal imager detects that the AGV has an abnormal temperature during charging and / or the smoke detector detects that the smoke concentration in the charging cabinet exceeds the alarm concentration, the fire door on the rear side is controlled to open, the power supply of the charging pile is disconnected simultaneously, and the carrier plate moving drive device drives the AGV on the carrier plate to move out of the charging cabinet, and then the fire door on the rear side is controlled to close.

Images