Safety protection device for automobile charging pile

Abstract

The invention relates to a safety protection device for an automobile charging pile applied to the technical field of automobile charging piles. The safety protection device comprises a charging pile body, a charging gun and an intelligent signal processor arranged in the charging pile body. The charging pile body comprises a winding motor arranged in the mounting box body and a winding disc fixed to the output end of the winding motor, a charging gun placement frame is arranged on the outer side of the mounting box body, a charging cable is wound around the winding disc, and the other end of the charging cable is connected with a charging gun; the intelligent signal processor comprises a charging management and control module, a judgment module and a control module, by adopting the winding disc and the winding motor, the charging cable can be recycled into the charging pile body, unintentional rolling of a vehicle can be avoided, the intelligent signal processor collects signals through various sensors, and the charging pile is more intelligent. Therefore, intelligent control over the winding motor is achieved, and automatic recycling of the charging gun when the vehicle is fully charged and automatic recycling of the charging gun when the charging gun falls can be effectively achieved.

Description

Technical Field

[0001] The present invention relates to a safety protection device, in particular to a safety protection device for a vehicle charging pile applied in the technical field of vehicle charging piles. Background Art

[0002] With the rapid development of electric vehicles in recent years, more and more people have recognized and purchased electric vehicles. In order to facilitate charging of electric vehicles, public charging piles have been set up in many areas.

[0003] The invention patent with the publication number CN118683374A discloses a new energy vehicle charging station and safety protection device, which includes a charging area, a waiting area, a circulating heat exchange component, a temperature compensation circulation pipeline, a temperature detection component and a temperature compensation component. The charging area is provided with multiple charging piles. The circulating heat exchange component is used to collect the heat generated by the charging piles and new energy vehicles. The temperature compensation circulation pipeline is used to output the heat recovered by the circulating heat exchange component. The temperature detection component is used to detect the temperature of the new energy vehicle battery. The temperature detection component is installed at the upper end of the temperature compensation component. The temperature compensation component matches the circulating heat exchange component and the temperature compensation circulation pipeline. The above-mentioned setting will have a better temperature control effect on the car charging pile, but there is a risk of damage caused by the charging gun not being placed on the charging pile or falling from the charging pile in public areas.

[0004] In view of the problem that the above-mentioned public charging piles are damaged due to the charging guns not being properly placed, this solution proposes a safety protection device for car charging piles. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is the problem that public charging piles are damaged due to the charging guns not being properly placed.

[0006] In order to solve the above problems, the present invention provides a safety protection device for a car charging pile, comprising a charging pile body, a charging gun and an intelligent signal processor arranged in the charging pile body; the charging pile body comprises an installation box, a winding motor arranged in the installation box, and a winding disk fixed at the output end of the winding motor, the outer ring of the winding disk is provided with a photoelectric switch, the outer side of the installation box is provided with a charging gun placement rack, the rear of the charging gun placement rack is provided with a rotating motor, a charging cable is wound on the winding disk, and the other end of the charging cable is connected to the charging gun; the charging gun comprises a charging gun housing, a pressure sensor 1 is provided in the contact area between the charging gun housing and the charging cable, a plurality of telescopic motors are arranged in the charging gun housing, a protective ring is provided in the charging port area of ​​the charging gun housing, the protective ring is connected to the output ends of the plurality of telescopic motors, a buckle column is provided at the charging port of the charging gun housing, and an electromagnet is arranged in the buckle column; the intelligent signal processor comprises a charging control module, a judgment module and a control module, the judgment module is electrically connected to the charging control module, the pressure sensor 1, the photoelectric switch and the control module respectively, and the control module is electrically connected to the plurality of telescopic motors, the rotating motor, the winding motor and the electromagnet respectively.

[0007] In the above-mentioned safety protection device for automobile charging piles, the automatic recovery and storage function of the charging guns of public charging piles is achieved.

[0008] As a further improvement of the present application, a guide wheel one is rotatably mounted on the top of the charging gun placement rack, and a guide wheel two is rotatably mounted on the bottom of the charging gun placement rack.

[0009] As a further improvement of the present application, a groove matching the charging cable is provided under the guide wheel 1, a pressure sensor 2 is provided in the charging gun placement rack, a control button is provided on the outside of the charging gun, the control button is electrically connected to the electromagnet, and the judgment module is electrically connected to the pressure sensor 2.

[0010] As a further improvement of the present application, a through hole is provided at the bottom of the charging gun placement rack, and guide wheels three are rotatably installed around the through hole.

[0011] As another improvement of the present application, protection is provided around the charging gun housing, and the protective cover and the protective ring are both soft in texture.

[0012] As another improved supplement of the present application, the charging gun housing and the protective cover are truncated cone-shaped, and the inner wall of the charging gun placement rack fits tightly with the protective cover.

[0013] As another improved supplement of the present application, a circular hole matching the charging port is opened in the protective ring, and the telescopic motor can push the protective ring to a position higher than the charging port.

[0014] As another improvement of the present application, a buckle is slidably provided in the buckle column, an elastic member is connected to the inner side of the buckle, and an electromagnet is connected to the other side of the elastic member.

[0015] To sum up, when the charging pile is in use, the charging control module will detect the usage status of the charging pile and the battery status of the tram. When the charging control module detects that the battery of the tram is fully charged and the charging gun has not been used again for a period of time, the judgment module will send information to the control module. The control module will control the electromagnet to be energized and control the output end of the telescopic motor to extend outward. At this time, if the charging gun is on the car, it will be pushed out. Since the charging gun is equipped with a protective device and a protective ring, it will not cause damage to the outer shell of the tram, nor will it cause damage to the charging gun by falling. At this time, if the charging gun is on the ground, the extended protective ring and protective cover will protect the charging gun to prevent To prevent damage caused by friction during dragging, when the telescopic motor is fully extended, the control module will control the electromagnet to cut off the power, and control the winding motor to recycle the charging gun and the charging cable. When the charging gun is recovered and placed on the charging gun placement rack, the judgment module will receive the signal from the pressure sensor 1 and the photoelectric switch. The judgment module will consider that the charging gun and the charging cable have been recovered. At this time, the judgment module will send information to the control module, and the control module will control the winding motor to unfold a section of the charging cable to facilitate the rotating motor to invert the charging gun to prevent dust and rainwater from entering the muzzle of the charging gun. Through the above process, the automatic recovery and storage function of the charging gun of the public charging pile is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural diagram of a charging pile according to the first and second embodiments of the present application;

[0017] Figure 2 This is a three-dimensional structural diagram of the charging pile body according to the first and second embodiments of the present application;

[0018] Figure 3 This is a three-dimensional structural diagram of a winding device according to a first embodiment of the present application;

[0019] Figure 4 This is a three-dimensional structural diagram of the charging gun according to the first and second embodiments of the present application;

[0020] Figure 5 For this application Figure 4 A magnified image of area A;

[0021] Figure 6 An exploded view of the electronic lock according to the first and second embodiments of the present application;

[0022] Figure 7 This is a three-dimensional structural diagram of a charging gun according to the first embodiment of the present application;

[0023] Figure 8 This is a control principle block diagram of an intelligent signal processor according to the first embodiment of the present application;

[0024] Fig. 9 Cross-sectional view of the charging gun placement rack of the second embodiment of the present application

[0025] Fig.10 This is a block diagram of the control principle of the intelligent signal processor of the second embodiment of the present application.

[0026] Description of the numbers in the figure:

[0027] 1. Charging pile body; 2. Charging gun; 3. Intelligent signal processor; 11. Installation box; 12. Winding motor; 13. Winding reel; 14. Charging gun placement rack; 15. Guide wheel one; 16. Guide wheel two; 17. Guide wheel three; 18. Photoelectric switch; 21. Charging gun housing; 22. Telescopic motor; 23. Protective ring; 24. Buckle column; 25. Buckle; 26. Elastic part; 27. Electromagnet; 28. Protective cover. DETAILED DESCRIPTION

[0028] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0029] The first implementation method:

[0030] See also Figure 1-Figure 8A safety protection device for a car charging pile comprises a charging pile body 1, a charging gun 2 and an intelligent signal processor 3 arranged in the charging pile body 1; the charging pile body 1 comprises an installation box 11, a winding motor 12 arranged in the installation box 11, and a winding reel 13 fixed to the output end of the winding motor 12, and a photoelectric switch 18 is arranged on the outer ring of the winding reel 13, and a charging gun placement rack 14 is arranged on the outer side of the installation box 11, and a rotating motor is arranged behind the charging gun placement rack 14. A charging cable is wound on the winding reel 13, and the photoelectric switch 18 on the winding reel 13 is used to detect the length of the charging cable wound on the winding reel 13. The photoelectric switch 18 will be triggered only when the winding reel 13 has rolled up all the charging cables, and the other end of the charging cable is connected to the winding reel 13. The charging gun 2 is connected; the charging gun 2 includes a charging gun housing 21, and a pressure sensor 1 is provided in the contact area between the charging gun housing 21 and the charging cable. The pressure sensor 1 is used to detect the pressure applied by the charging cable to the charging gun 2. A plurality of telescopic motors 22 are provided in the charging gun housing 21, and a protective ring 23 is provided in the charging port area of ​​the charging gun housing 21. The protective ring 23 is connected to the output ends of the plurality of telescopic motors 22. The telescopic motor 22 can adjust the position of the protective ring 23 by telescoping, so as to protect the charging gun 2 through the protective ring 23. A snap column 24 is provided at the charging port of the charging gun housing 21, and an electromagnet 27 is provided in the snap column 24. The characteristics of the electromagnet 27 are that it is magnetic when power is on and non-magnetic when power is off.

[0031] In addition, the intelligent signal processor 3 includes a charging control module, a judgment module and a control module. The judgment module is electrically connected to the charging control module, the pressure sensor 1, the photoelectric switch 18 and the control module respectively. The above-mentioned charging control module is the existing technology possessed by the public tram charging pile. The charging control module has the function of detecting whether the charging pile is charging and the charging status of the electric vehicle battery. After the judgment module is electrically connected to the charging control module, the charging control module can send the corresponding signal to the judgment module. In addition, the judgment module can also detect the force applied by the charging cable to the charging gun 2 through the pressure sensor 1 and the winding status of the charging cable through the photoelectric switch 18. The judgment module will make a judgment based on the above information and send the judgment signal to the control module. The control module is electrically connected to multiple telescopic motors 22, rotating motors, winding motors 12 and electromagnets 27 respectively. After being electrically connected to the above-mentioned devices, the control module can control the scaling of the output end of the telescopic motor 22, the power on or off of the electromagnet 27, and the start and stop of the rotating motor and the winding motor 12. Whether the control module controls the device depends on the judgment signal of the judgment module.

[0032] To sum up, when the charging pile is in use, the charging control module will detect that the charging pile has an output current and send the information to the judgment module. At the same time, the judgment module will also detect the pressure value of the pressure sensor 1. If its pressure value is higher than the set value (the pressure value of the normal charging gun 2 entrusting the charging cable), in order to prevent the charging cable from being damaged by long-term force, the control module will control the winding motor 12 to unfold a section of the charging cable. If its pressure value is lower than the set value, it is considered that the cable is supporting the ground. In order to prevent other cars from running over the charging cable, the control module will control the winding motor 12 to wind up the charging cable until the pressure value of the pressure sensor 1 is higher than the set value. The winding motor 12 will then unfold a section of the charging cable to prevent the cable from being damaged by force. When the charging control module detects that the battery of the electric vehicle is fully charged, if the charging gun 2 has not been used again for a period of time, the judgment module will send information to the control module, and the control module will control the electromagnet 27 to be energized, and at the same time control the output end of the telescopic motor 22 to extend outward. Extended, if the charging gun 2 is on the car at this time, it will be pushed out. Since the charging gun 2 is provided with a protective device and a protective ring 23, it will neither damage the outer shell of the tram nor cause the charging gun 2 to fall and be damaged. At this time, if the charging gun 2 is on the ground, the extended protective ring 23 and the protective cover 28 will protect the charging gun 2 to prevent it from being damaged by external friction during dragging. When the telescopic motor 22 is fully extended, the control module will control the electromagnet 27 to cut off the power, and control the winding motor 12 to recycle the charging gun 2 and the charging cable. When the charging gun 2 is recovered and placed on the charging gun placement rack 14, the judgment module will receive the signal from the pressure sensor 1 and the photoelectric switch 18, and the judgment module will believe that the charging gun 2 and the charging cable have been recovered. At this time, the judgment module will send information to the control module, and the control module will control the winding motor 12 to unfold a section of the charging cable, which is convenient for the rotating motor to invert the charging gun 2 to prevent dust and rain from entering the muzzle of the charging gun 2.

[0033] like Figure 2 As shown, a guide wheel 15 is rotatably installed on the top of the charging gun placement rack 14, and a guide wheel 2 16 is rotatably installed on the bottom of the charging gun placement rack 14. The guide wheel 15 and the guide wheel 2 16 are both used to guide the charging cable to prevent the charging cable from being damaged due to friction. A through hole is opened at the bottom of the charging gun placement rack 14, and the charging cable is inserted into the through hole. Guide wheels 3 17 are rotatably installed around the through hole. The guide wheel 3 17 is used to guide the charging cable to prevent the charging cable from being damaged due to friction.

[0034] In addition, a protective cover 28 is provided around the charging gun housing 21. The protective cover 28 and the protective ring 23 are both soft in texture, which can effectively reduce the damage of the charging gun 2 when it falls, and the protective cover 28 and the protective ring 23 both have good anti-friction ability; the charging gun housing 21 and the protective cover 28 are truncated cone-shaped, and the truncated cone shape helps to place the charging gun 2 on the charging gun placement rack 14. The inner wall of the charging gun placement rack 14 fits tightly with the protective cover 28, so that the protective cover 28 will not detach from the charging gun 2, and the charging gun 2 will have the best protection effect.

[0035] like Figure 4-Figure 6 A circular hole matching the charging port is provided in the protective ring 23, so that when the telescopic motor 22 is fully retracted, the charging port of the charging gun 2 will not be blocked, and the protective cover 28 will not hinder the use of the charging gun 2. The telescopic motor 22 can push the protective ring 23 to a position higher than the charging port. When the protective ring 23 is higher than the charging port, its protection effect is best; a buckle 25 is slidably arranged in the buckle column 24, and an elastic member 26 is connected to the inner side of the buckle 25, and an electromagnet 27 is connected to the other side of the elastic member 26. Through the above arrangement, when the electromagnet 27 is energized, the buckle 25 will shrink to the inside of the buckle column 24, and when the electromagnet 27 is de-energized, the buckle 25 will pop out of the buckle column 24 under the action of the elastic member 26 and then be used to fix the charging gun 2 to the tram.

[0036] The second implementation method:

[0037] See also Figure 1-Figure 6 , Fig. 9 and Fig.10 , which is different from the first embodiment, a groove matching the charging cable is provided under the guide wheel 15, and the guide wheel 15 can be taken out from the charging gun placement rack 14, so that the charging cable can be placed in the groove. A pressure sensor 2 is arranged in the charging gun placement rack 14, and the pressure sensor 2 is used to detect the weight carried by the charging gun placement rack 14. A control button is arranged on the outside of the charging gun 2, and the control button is electrically connected to the electromagnet 27. Through this arrangement, the control button on the outside of the charging gun 2 can also be used to control the power on or off of the electromagnet 27, and the judgment module is electrically connected to the pressure sensor 2.

[0038] To sum up, when the owner of the car charging pile needs to manually unplug the charging gun 2 and return the charging gun 2, the owner needs to press the control button on the outside of the charging gun 2. At this time, the electromagnet 27 will be energized, and the buckle 25 will be sucked into the buckle column 24 under the action of suction, and the charging gun 2 can be separated from the electric car. In order to facilitate the owner to place the charging gun 2 on the charging gun placement rack 14 without affecting the use of the cable bundling device, the owner needs to remove the guide wheel 15 from the charging gun placement rack 14, and insert the cable connected to the charging gun 2 into the charging gun placement rack 14 along the groove. After the above operation is completed, install the guide wheel 15 back to its original place and put the charging gun 2 away. At this time, it is judged that The module detects that the charging gun 2 has no output current through the charging control module, and combines the pressure values ​​of pressure sensor 1 and pressure sensor 2 to determine that the charging gun 2 has been placed on the charging gun placement rack 14. The judgment module then sends the information to the control module, and the control module controls the winding motor 12 to recycle the charging cable. When the judgment module receives the signal from pressure sensor 1 and the photoelectric switch 18, the judgment module considers that the charging cable has been recycled. At this time, the judgment module sends information to the control module, and the control module controls the winding motor 12 to unfold a section of the charging cable to facilitate the rotating motor to invert the charging gun 2 to prevent dust and rain from entering the muzzle of the charging gun 2.

[0039] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A safety protection device for a car charging pile, characterized in that: It comprises a charging pile body (1), a charging gun (2), and an intelligent signal processor (3) arranged in the charging pile body (1); The charging pile body (1) comprises a mounting box (11), a winding motor (12) arranged in the mounting box (11), and a winding reel (13) fixed to the output end of the winding motor (12); a photoelectric switch (18) is arranged on the outer ring of the winding reel (13); a charging gun placement rack (14) is arranged on the outer side of the mounting box (11); a rotating motor is arranged behind the charging gun placement rack (14); a charging cable is wound around the winding reel (13); and the other end of the charging cable is connected to the charging gun (2); The charging gun (2) comprises a charging gun housing (21), a pressure sensor 1 is arranged in the contact area between the charging gun housing (21) and the charging cable, a plurality of telescopic motors (22) are arranged in the charging gun housing (21), a protective ring (23) is arranged in the charging port area of ​​the charging gun housing (21), the protective ring (23) is connected to the output ends of the plurality of telescopic motors (22), a buckle column (24) is arranged in the charging port of the charging gun housing (21), and an electromagnet (27) is arranged in the buckle column (24); The intelligent signal processor (3) comprises a charging control module, a judgment module and a control module, wherein the judgment module is electrically connected to the charging control module, a pressure sensor 1, a photoelectric switch (18) and the control module respectively, and the control module is electrically connected to a plurality of telescopic motors (22), a rotating motor, a winding motor (12) and an electromagnet (27) respectively.

2. A safety protection device for a car charging pile according to claim 1, characterized in that: A guide wheel 1 (15) is rotatably mounted on the top of the charging gun placement rack (14), and a guide wheel 2 (16) is rotatably mounted on the bottom of the charging gun placement rack (14).

3. A safety protection device for a car charging pile according to claim 2, characterized in that: A groove matching the charging cable is provided below the guide wheel 1 (15), a pressure sensor 2 is provided inside the charging gun placement rack (14), a control button is provided on the outside of the charging gun (2), the control button is electrically connected to the electromagnet (27), and the judgment module is electrically connected to the pressure sensor 2.

4. A safety protection device for a car charging pile according to claim 2, characterized in that: A through hole is provided at the bottom of the charging gun placement rack (14), and guide wheels (17) are rotatably mounted around the through hole.

5. A safety protection device for a car charging pile according to claim 1, characterized in that: A protective sleeve (28) is arranged around the charging gun housing (21), and the protective sleeve (28) and the protective ring (23) are both relatively soft.

6. A safety protection device for a car charging pile according to claim 1, characterized in that: The charging gun housing (21) and the protective cover (28) are truncated cone-shaped, and the inner wall of the charging gun placement rack (14) is tightly fitted with the protective cover (28).

7. A safety protection device for a car charging pile according to claim 1, characterized in that: The protective ring (23) is provided with a circular hole matching the charging port, and the telescopic motor (22) can push the protective ring (23) to a position higher than the charging port.

8. A safety protection device for a car charging pile according to claim 1, characterized in that: A buckle (25) is slidably arranged in the buckle column (24), an elastic member (26) is connected to the inner side of the buckle (25), and an electromagnet (27) is connected to the other side of the elastic member (26).

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