A robot charging pile

Abstract

The utility model provides a kind of robot charging pile, power module is equipped in shell, power module includes AC adapter, power switch and charging output spring piece, AC adapter is connected with commercial power, the input end of power switch is electrically connected to the output end of AC adapter, the output end of power switch is electrically connected to charging output spring piece, still be equipped with charging in place detection mechanism on shell;AC adapter is electrically connected with DC-DC power conversion module, the power output end of DC-DC power conversion module is electrically connected with main control communication module;Charging in place detection mechanism includes spring piece detection circuit, spring piece detection circuit is connected with main control communication module communication, main control communication module is connected with power switch communication, main control communication module can be connected with robot communication.By charging in place detection mechanism, whether robot contacts charging output spring piece is detected, and main control communication module is set and robot communication, whether charging pile is charged is fed back to other robots.

Description

Technical Field

[0001] This utility model relates to the field of robot charging technology, and in particular to a robot charging station. Background Technology

[0002] With the large-scale application of intelligent mobile robots (such as AGVs, AMRs, and service robots) in warehousing and logistics, intelligent manufacturing, and healthcare, the demand for autonomous charging has exploded. As a core node in robot energy management, current charging stations typically only contain power modules and cannot communicate with the robot. Therefore, the robot cannot know whether a charging station is occupied, and when its battery is low, it automatically runs to the charging station, easily causing congestion on the charging route. Utility Model Content

[0003] To address the aforementioned problems, the purpose of this utility model is to provide a robot charging station.

[0004] This utility model is implemented by the following method: a robot charging pile, including a shell, a DC-DC power conversion module and a main control communication module. The shell is provided with a power module, which includes an AC adapter, a power switch and a charging output spring. The AC adapter is connected to the mains power. The output end of the AC adapter is electrically connected to the input end of the power switch. The output end of the power switch is electrically connected to the charging output spring. The shell is also provided with a charging completion detection mechanism.

[0005] The AC adapter is electrically connected to the DC-DC power conversion module, and the power output terminal of the DC-DC power conversion module is electrically connected to the main control communication module.

[0006] The charging completion detection mechanism includes a spring contact detection circuit, which cooperates with the charging output spring contact to detect the triggering status of the charging output spring contact and output a charging pile occupancy signal. The spring contact detection circuit is electrically connected to the DC-DC power conversion module, and is communicatively connected to the main control communication module to transmit the charging pile occupancy signal detected by the spring contact detection circuit. The main control communication module is communicatively connected to the power switch and is used to communicate with the robot to transmit the charging pile occupancy signal.

[0007] Preferably, the charging output spring has an upper spring and a lower spring, both of which are connected to a sensing element. The spring detection circuit includes an upper spring detection circuit and a lower spring detection circuit, which are identical. The upper spring detection circuit includes a photoelectric sensor, which is triggered by the sensing element. The photoelectric sensor is communicatively connected to the main control communication module. The photoelectric sensor outputs a signal to the main control communication module in real time. The main control communication module compares the output signal of the photoelectric sensor with a set threshold. When the set threshold is exceeded, the main control communication module determines that the lower and upper springs are occupied.

[0008] Preferably, the upper spring detection circuit further includes a relay J9, which is connected to the signal output terminal of the photoelectric sensor; the first pin of the relay J9 is connected to the output terminal of the DC-DC power conversion module, and connected to the transient voltage suppression diode TVS4 grounded, and connected to the capacitor C46 grounded; the second pin of the relay J9 is connected to the transient voltage suppression diode TVS5 grounded, and the second pin of the relay J9 is connected to the emitter of the transistor Q5; a resistor R59 is connected between the base of the transistor Q5 and the output terminal of the DC-DC power conversion module. A resistor R58 is connected between the output terminal of the DC-DC power conversion module and the emitter of the transistor Q5. The collector of the transistor Q5 is connected to one end of resistors R60 and R61. The other end of resistor R60 is connected to the output terminal of the DC-DC power conversion module. The other end of resistor R61 is connected to one end of resistor R62 and one end of capacitor C47. The other end of capacitor C47 is grounded. The other end of resistor R62 is connected to the main control communication module to transmit the charging pile occupancy signal to the main control communication module. The third pin of the relay J9 is grounded.

[0009] Preferably, the power module further includes a current acquisition sensor, which is connected between the power switch and the charging output spring, and is communicatively connected to the main control communication module.

[0010] Preferably, the main control communication module includes a WIFI MCU and a LoRa module. The WIFI MCU is electrically connected to the DC-DC power conversion module and the LoRa module. The LoRa module is communicatively connected to the WIFI MCU. The WIFI MCU is communicatively connected to the current acquisition sensor, the power switch, and the spring detection circuit. The LoRa module is communicatively connected to the robot.

[0011] Preferably, the current acquisition sensor is an ACS711KEXLT-15AB-T current sensor.

[0012] Preferably, it also includes a status indicator light, which is electrically connected to the output terminal of the DC-DC power conversion module and communicatively connected to the main control communication module.

[0013] Preferably, the DC-DC power conversion module includes a 5V DC-DC module and a 3.3V DC-DC module. The 5V DC-DC module is electrically connected to the AC adapter, and the output terminal of the 5V DC-DC module is electrically connected to the input terminal of the 3.3V DC-DC module. The output terminal of the 3.3V DC-DC module is electrically connected to the WIFI MCU and the current acquisition sensor. The output terminal of the 5V DC-DC module is also electrically connected to the LoRa module and the status indicator light of the spring contact detection circuit.

[0014] Preferably, the housing is provided with a mounting plate, a lower spring is installed on the lower part of the surface of the mounting plate, and an upper spring is installed on the upper part of the surface of the mounting plate; an elastic reset member is connected between the lower spring and the mounting plate, and an elastic reset member is also connected between the upper spring and the mounting plate; a sensing plate is provided on the side of the lower spring and the upper spring in the direction of movement, and the photoelectric sensor is provided at a position inside the housing opposite to the movement path of the corresponding sensing plate.

[0015] Preferably, the elastic reset member includes a guide hole and a guide post passing through the guide hole. A reset spring passes through the guide post. One end of the guide post is fixedly connected to the corresponding lower spring or the upper spring. One end of the reset spring abuts against the end face of the guide hole, and the other end abuts against the corresponding lower spring or the upper spring.

[0016] The beneficial effects of this utility model are as follows: This utility model provides a robot charging station, which, compared with the prior art, has at least the following technical effects: 1. Through a charging position detection mechanism, it detects whether the robot has contacted the charging output spring, and sets up a main control communication module to communicate with the robot, feeding back the charging status of the charging station to other robots, so as to prevent other robots from rushing to the charging station together and avoiding congestion on the charging path. 2. Both the upper and lower springs are connected to sensing plates, and a photoelectric sensor that cooperates with the sensing plates is provided in the housing. When the photoelectric sensor is triggered, it means that the charging station is occupied, and other robots will no longer move to this charging station, avoiding congestion on the charging path. 3. During charging, the status indicator light flashes in a breathing manner, letting the user know that the robot is charging. When fully charged, the status indicator light is constantly lit. When the main control communication module detects that the charging is fully charged (the current is less than a specified threshold, indicating that the battery is fully charged), it will send a message to the user via Wi-Fi that the robot is fully charged and can be moved. Attached Figure Description

[0017] Figure 1 This is a circuit diagram of a robot charging station according to the present invention.

[0018] Figure 2 This is a schematic diagram of the power supply status of the power module and DC-DC power conversion module of a robot charging station according to this utility model.

[0019] Figure 3 This is the circuit diagram of the spring detection circuit.

[0020] Figure 4 This is a circuit block diagram of the power switch and current acquisition sensor.

[0021] Figure 5 This is a circuit block diagram of a 5V DC-DC power conversion module.

[0022] Figure 6 This is a circuit block diagram of a 3.3V DC-DC power conversion module.

[0023] Figure 7 This is a circuit block diagram of a WIFI MCU module.

[0024] Figure 8 This is the circuit block diagram of the LoRa module.

[0025] Figure 9 This is a circuit block diagram of a status indicator light.

[0026] Figure 10 This is a schematic diagram of the external structure of the robot charging station of this utility model.

[0027] Figure 11 This is a cross-sectional structural diagram of the robot charging station of this utility model at the lower spring piece.

[0028] Reference numerals: 1. Housing; 2. AC adapter; 3. Power switch; 4. Charging output spring; 41. Upper spring; 42. Lower spring; 5. Charging completion detection mechanism; 51. Photoelectric sensor; 52. Sensing plate; 53. Elastic reset component; 531. Guide post; 532. Reset spring; 6. Current acquisition sensor; 7. WIFI MCU; 8. LoRa module; 9. Status indicator light; 10. 5VDC-DC module; 11. 3.3V DC-DC module; 12. Mounting plate. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0030] Please see Figures 1 to 11A robot charging station includes a housing 1, a DC-DC power conversion module and a main control communication module. The housing 1 is equipped with a power module, which includes an AC adapter 2, a power switch 3 and a charging output spring 4. The AC adapter 2 is connected to the mains power, and the output end of the AC adapter 2 is electrically connected to the input end of the power switch 3. The output end of the power switch 3 is electrically connected to the charging output spring 4. The housing 1 is also equipped with a charging completion detection mechanism 5.

[0031] The AC adapter 2 is electrically connected to the DC-DC power conversion module, and the power output terminal of the DC-DC power conversion module is electrically connected to the main control communication module.

[0032] The charging position detection mechanism 5 includes a spring contact detection circuit. This circuit works in conjunction with the charging output spring contact 4 to detect the triggering status of the spring contact 4 and output a charging pile occupancy signal. The spring contact detection circuit is electrically connected to the DC-DC power conversion module and communicatively connected to the main control communication module to transmit the charging pile occupancy signal detected by the spring contact detection circuit. The main control communication module is also communicatively connected to the power switch 3 and can communicate with the robot to transmit the charging pile occupancy signal. Through the charging position detection mechanism 5, it detects whether the robot has contacted the charging output spring contact 4 and sets up the main control communication module to communicate with the robot, feeding back the charging pile's charging status to other robots to prevent them from rushing to the charging pile and causing congestion on the charging route. The robot has a corresponding module that communicates with the main control communication module; this is existing equipment, and the communication transmission equipment and data technology are mature existing technologies, so detailed explanations and specific protection requirements are not provided.

[0033] Please see Figures 1 to 3 , Figure 10 , Figure 11 Preferably, the charging output spring 4 has an upper spring 41 and a lower spring 42, both of which are connected to a sensing element 52. The spring detection circuit includes an upper spring detection circuit (e.g., Figure 3 (as described in the upper half) and the lower spring detection circuit (such as...) Figure 3(As shown in the lower half of the figure), the upper spring detection circuit and the lower spring detection circuit are the same. The upper spring detection circuit includes a photoelectric sensor 51. The sensing sheet 52 can trigger the photoelectric sensor 51. The photoelectric sensor 51 is communicatively connected to the main control communication module. The photoelectric sensor 51 outputs a signal to the main control communication module in real time. The main control communication module compares the output signal of the photoelectric sensor 51 with a set threshold. When the set threshold is exceeded, the main control communication module determines that the lower spring 42 and the upper spring 41 are occupied. This determines whether the robot has reached the charging position, that is, whether the charging station is currently occupied.

[0034] Please see Figures 1 to 11Preferably, the upper spring detection circuit further includes a relay J9, which is connected to the signal output terminal of the photoelectric sensor 51. The first pin of the relay J9 is connected to the output terminal of the DC-DC power conversion module, and is connected to a transient voltage suppressor diode TVS4 grounded, and also connected to a capacitor C46 grounded. The second pin of the relay J9 is connected to a transient voltage suppressor diode TVS5 grounded, and is also connected to the emitter of a transistor Q5. A resistor R59 is connected between the base of the transistor Q5 and the output terminal of the DC-DC power conversion module. A resistor R58 is connected between the output terminal of the DC-DC power conversion module and the emitter of the transistor Q5. The collector of the transistor Q5 is connected to one end of resistors R60 and R61. The other end of resistor R60 is connected to the output terminal of the DC-DC power conversion module. The other end of resistor R61 is connected to one end of resistor R62 and one end of capacitor C47. The other end of capacitor C47 is grounded. The other end of resistor R62 is connected to the main control communication module, transmitting the charging pile occupancy signal to the main control communication module. The third pin of relay J9 is grounded. Power input: The DC-DC power conversion module uses 5V10 and SYS_3V3 as power supplies. 5V10 powers part of the detection circuit, and SYS_3V3 powers subsequent digital circuits or low-voltage devices. TVS protection: TVS4 and TVS5 (5.3V) are transient voltage suppression diodes used to prevent the circuit from being subjected to overvoltage surges and protect downstream circuit components. Capacitor filtering: C48 (0.1μF) and C47 (0.01μF) are filter capacitors, which filter out high-frequency and low-frequency noise in the power supply, making the power supply more stable. J9 outputs a 5V10 level signal, while the MCU receives an input level of 3.3V11. The two levels are mismatched. A level conversion circuit is formed by transistor Q5 and resistors R58, R59, R60, etc., to convert the 5V10 level signal output from the second pin of J9 into a 3.3V11 level signal. Finally, the 3.3V11 charging pile occupancy signal (Detection_1) is output for subsequent circuits (such as the microcontroller) to collect and process. Opto-interrupter sensor 51: It consists of light-emitting and light-receiving parts. When the metal spring enters the sensing area of ​​the opto-interrupter, it will block the light, change the light signal received by the light-receiving part, and generate a 5V10 output signal (int1) to determine whether the upper spring 41 is in place (whether it has been triggered by the robot).

[0035] Please see Figures 1 to 4Preferably, the power module further includes a current acquisition sensor 6, which is connected between the power switch 3 and the charging output spring 4. The current acquisition sensor 6 is communicatively connected to the main control communication module. The current acquisition sensor 6 uses an ADC to acquire the charging current (the current magnitude can be determined to indicate whether the device is fully charged).

[0036] Please see Figures 1 to 3 , Figure 7 , Figure 8 Preferably, the main control communication module includes a WIFI7 MCU and a LoRa module 8. The WIFI7 MCU is electrically connected to the DC-DC power conversion module and the LoRa module 8. The LoRa module 8 is communicatively connected to the WIFI7 MCU. The WIFI7 MCU is communicatively connected to the current acquisition sensor 6, the power switch 3, and the spring contact detection circuit. The LoRa module 8 is communicatively connected to the robot, transmitting the charging pile occupancy signal to the robot. The WIFI7 MCU uses an ESP32-WROOM-32D; the LoRa module 8 uses an E22-230T30D.

[0037] Please see Figures 1 to 4 Preferably, the current acquisition sensor 6 is an ACS711KEXLT-15AB-T current sensor.

[0038] Please see Figures 1 to 2 , Figure 5 , Figure 6 , Figures 9 to 11 Preferably, it also includes a status indicator light 9, which is electrically connected to the output terminal of the DC-DC power conversion module and communicatively connected to the main control communication module. During charging, the status indicator light 9 flashes in a breathing pattern to let the user know that the device is being charged. When fully charged, the status indicator light remains constantly lit. When the main control communication module detects that the device is fully charged (the current is less than a specified threshold indicating a full battery), it will send a notification to the user via Wi-Fi that the device is fully charged and can be moved.

[0039] Please see Figure 6 , Figure 9Preferably, the DC-DC power conversion module includes a 5VDC-DC 10 module and a 3.3VDC-DC 11 module. The 5VDC-DC 10 module is electrically connected to the AC adapter 2, and its output terminal is electrically connected to the input terminal of the 3.3VDC-DC 11 module. The output terminal of the 3.3VDC-DC 11 module is electrically connected to the WIFI7 MCU and the current acquisition sensor 6. The output terminal of the 5VDC-DC 10 module is also electrically connected to the LoRa module 8 and the spring contact detection circuit status indicator 9. The 3.3VDC-DC 11 module uses an MP1652GTF-Z; the 5VDC-DC 10 module uses an MP4562GJ-Z.

[0040] Please see Figure 10 , Figure 11 Preferably, the housing 1 is provided with a mounting plate 12, a lower spring sheet 42 is installed on the lower part of the surface of the mounting plate 12, and an upper spring sheet 41 is installed on the upper part of the surface of the mounting plate 12; an elastic reset member 53 is connected between the lower spring sheet 42 and the mounting plate 12, and an elastic reset member 53 is also connected between the upper spring sheet 41 and the mounting plate 12; a sensing sheet 52 is provided on the side of the lower spring sheet 42 and the upper spring sheet 41 in the direction of movement, and a photoelectric sensor 51 is provided in the housing 1 at a position opposite to the movement path of the corresponding sensing sheet 52. When the robot touches the lower spring plate 42 and the upper spring plate 41, they are pushed into the housing 1. The elastic reset member 53 deforms and causes the sensing plate 52 to block the photoelectric sensor 51 (the output signal of the photoelectric sensor 51 changes (such as a change in high or low level)). The photoelectric sensor 51 transmits the output signal to the main control communication module. The main control communication module controls the power switch 3 to start charging and sends a signal that the charging pile is currently occupied to the other robots. After the fully charged robot leaves, the lower spring plate 42 and the upper spring plate 41 are no longer squeezed by the robot. The elastic reset member 53 drives the lower spring plate 42 and the upper spring plate 41 to reset and move out of the housing 1, causing the sensing plate 52 to move away from the photoelectric sensor 51. The photoelectric sensor 51 is no longer blocked, and the output signal changes again. The main control communication module compares the output signal input by the photoelectric sensor 51 with the set threshold and finds that it is not occupied. The main control communication module sends a signal that the charging pile is currently idle to the other robots, and the other robots move over to charge.

[0041] Please see Figure 10 , Figure 11Preferably, the elastic reset member 53 includes a guide hole and a guide post 531 passing through the guide hole. A reset spring 532 passes through the guide post 531. One end of the guide post 531 is fixedly connected to the corresponding lower spring piece 42 or the upper spring piece 41. One end of the reset spring 532 abuts against the end face of the guide hole, and the other end abuts against the corresponding lower spring piece 42 or the upper spring piece 41. This ensures that the upper spring piece 41 and the lower spring piece 42 accurately trigger the photoelectric sensor 51 and accurately reset.

[0042] The working principle of this utility model is as follows:

[0043] When the robot moves to the charging station, its charging contacts will contact the lower spring 42 or the upper spring 41 respectively, which will push the lower spring 42 and the upper spring 41 into the housing 1. This will cause the sensing piece 52 connected to the lower spring 42 and the upper spring 41 to move. The sensing piece 52 moves to the position where it blocks the photoelectric sensor 51. After the photoelectric sensor 51 is triggered, the threshold of the signal it outputs will exceed the threshold set in the main control communication module. The main control communication module compares the output signal of the photoelectric sensor 51 with the set threshold. When it exceeds the set threshold, the main control communication module can determine that the metal spring has been in place, which means that the robot has reached the designated charging position. The main control communication module sends a signal to the power switch 3 to control it to open. The current will then flow from the AC adapter 2, the power switch 3, the current acquisition sensor 6, the charging output spring 4, and through the robot's charging contacts to charge the battery inside. The current acquisition sensor 6 uses an ADC to collect the charging current (which determines whether the device is fully charged) and transmits this data to the main control communication module. During charging, the status indicator 9 flashes in a breathing pattern to let the user know that the robot is being charged. When fully charged, the status indicator 9 remains constantly lit. When the main control communication module detects that the robot is fully charged, it sends a notification to the user via Wi-Fi that the robot is fully charged and can be moved. Simultaneously, this device also has a function that, while charging, can use the LoRa module 8 to send a command indicating that the charging dock is occupied by another robot (checking if the current charging dock is being used by another robot). Other robots with low battery levels will not move towards the charging dock, thus avoiding robot congestion. Once the current robot is fully charged and moved, the main control communication module will prioritize sending a signal to the robot with the lowest battery level that the charging dock is not occupied, notifying it that it can start charging.

[0044] Several points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0045] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0046] Finally, the above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions that fall within the scope of the present utility model are protected by the present utility model.

[0047] It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of this utility model should also be considered within the scope of protection of this utility model.

Claims

1. A robot charging station, comprising a housing, a DC-DC power conversion module, and a main control communication module, wherein the housing houses a power module, the power module comprising an AC adapter, a power switch, and a charging output spring, the AC adapter being connected to mains power, the output terminal of the AC adapter being electrically connected to the input terminal of the power switch, and the output terminal of the power switch being electrically connected to the charging output spring, characterized in that: The housing is also equipped with a charging completion detection mechanism; The AC adapter is electrically connected to the DC-DC power conversion module, and the power output terminal of the DC-DC power conversion module is electrically connected to the main control communication module. The charging completion detection mechanism includes a spring contact detection circuit, which cooperates with the charging output spring contact to detect the triggering status of the charging output spring contact and output a charging pile occupancy signal. The spring contact detection circuit is electrically connected to the DC-DC power conversion module, and is communicatively connected to the main control communication module to transmit the charging pile occupancy signal detected by the spring contact detection circuit. The main control communication module is communicatively connected to the power switch and is used to communicate with the robot to transmit the charging pile occupancy signal.

2. The robot charging station according to claim 1, characterized in that: The charging output spring has an upper spring and a lower spring, both of which are connected to a sensing element. The spring detection circuit includes an upper spring detection circuit and a lower spring detection circuit, which are identical. The upper spring detection circuit includes a photoelectric sensor, which is triggered by the sensing element. The photoelectric sensor is communicatively connected to the main control communication module. The photoelectric sensor outputs a signal to the main control communication module in real time. The main control communication module compares the output signal of the photoelectric sensor with a set threshold. When the set threshold is exceeded, the main control communication module determines that the lower and upper springs are occupied.

3. A robot charging station according to claim 2, characterized in that: The upper spring contact detection circuit also includes a relay J9, which is connected to the signal output terminal of the photoelectric sensor. The first pin of the relay J9 is connected to the output terminal of the DC-DC power conversion module, and is connected to a transient voltage suppressor diode (TVS4) grounded, and also connected to a capacitor C46 grounded. The second pin of the relay J9 is connected to a transient voltage suppressor diode (TVS5) grounded, and is also connected to the emitter of a transistor Q5. A resistor R59 is connected between the base of transistor Q5 and the output terminal of the DC-DC power conversion module. A resistor R58 is connected between the output terminal of the C-DC power conversion module and the emitter of the transistor Q5. The collector of the transistor Q5 is connected to one end of resistors R60 and R61. The other end of resistor R60 is connected to the output terminal of the DC-DC power conversion module. The other end of resistor R61 is connected to one end of resistor R62 and one end of capacitor C47. The other end of capacitor C47 is grounded. The other end of resistor R62 is connected to the main control communication module, transmitting the charging pile occupancy signal to the main control communication module. The third pin of the relay J9 is grounded.

4. A robot charging station according to claim 1, characterized in that: The power module also includes a current acquisition sensor, which is connected between the power switch and the charging output spring, and is communicatively connected to the main control communication module.

5. A robot charging station according to claim 4, characterized in that: The main control communication module includes a WIFI MCU and a LoRa module. The WIFI MCU is electrically connected to the DC-DC power conversion module and the LoRa module. The LoRa module is communicatively connected to the WIFI MCU. The WIFI MCU is communicatively connected to the current acquisition sensor, the power switch, and the spring detection circuit. The LoRa module is communicatively connected to the robot.

6. A robot charging station according to claim 5, characterized in that: The current acquisition sensor is an ACS711KEXLT-15AB-T current sensor.

7. A robot charging station according to claim 5, characterized in that: It also includes a status indicator light, which is electrically connected to the output terminal of the DC-DC power conversion module and is communicatively connected to the main control communication module.

8. A robot charging station according to claim 7, characterized in that: The DC-DC power conversion module includes a 5V DC-DC module and a 3.3V DC-DC module. The 5V DC-DC module is electrically connected to the AC adapter, and the output terminal of the 5V DC-DC module is electrically connected to the input terminal of the 3.3V DC-DC module. The output terminal of the 3.3V DC-DC module is electrically connected to the WIFI MCU and the current acquisition sensor. The output terminal of the 5V DC-DC module is also electrically connected to the LoRa module and the status indicator light of the spring contact detection circuit.

9. A robot charging station according to claim 2, characterized in that: The charging completion detection mechanism also includes a mounting plate on the housing. A lower spring is mounted on the lower part of the surface of the mounting plate, and an upper spring is mounted on the upper part of the surface of the mounting plate. An elastic reset member is connected between the lower spring and the mounting plate, and an elastic reset member is also connected between the upper spring and the mounting plate. The sensing plates are provided on the sides of the lower and upper springs in the direction of movement, and photoelectric sensors are provided at positions inside the housing opposite to the movement paths of the corresponding sensing plates.

10. A robot charging station according to claim 9, characterized in that: The elastic reset component includes a guide hole and a guide post passing through the guide hole. A reset spring is passed through the guide post. One end of the guide post is fixedly connected to the corresponding lower or upper spring piece. One end of the reset spring abuts against the end face of the guide hole, and the other end abuts against the corresponding lower or upper spring piece.

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