CN117774738A

CN117774738A - Automatic power-off protection device for abnormal condition of charging pile

Info

Publication number: CN117774738A
Application number: CN202410129122.4A
Authority: CN
Inventors: 鄢庆清; 李宝仓
Original assignee: Jiangxi Small Emu New Energy Technology Co ltd
Current assignee: Jiangxi Small Emu New Energy Technology Co ltd
Priority date: 2024-01-31
Filing date: 2024-01-31
Publication date: 2024-03-29

Abstract

The invention relates to the technical field of charging piles and discloses an automatic power-off protection device for abnormal conditions of the charging piles, which comprises a box body and a through groove, wherein the through groove is formed in the surface of the box body, four corners of the bottom of the box body are fixedly connected with fixing legs, the surface of the box body is fixedly connected with an alarm, one side inner wall of the box body, which is far away from the through groove, is fixedly connected with a main source plug, the top end of an inner cavity of the box body is fixedly connected with a controller, a cable is in a movable state through a torsion sensor, and further, when a user does not put a charging gun back to the original position due to wearing of a headset and other conditions, the connection between the cable and the main source plug can be disconnected.

Description

Automatic power-off protection device for abnormal condition of charging pile

Technical Field

The invention relates to the technical field of charging piles, in particular to an automatic power-off protection device for abnormal conditions of a charging pile.

Background

The charging pile is similar to the oiling machine in a gas station in function, is usually installed in public buildings (public buildings, markets, public parking lots and the like) and residential area parking lots or charging stations, can charge electric vehicles of various types according to different voltage levels, is directly connected with an alternating current power grid at the input end and is provided with a charging plug at the output end, and is used for charging the electric vehicles.

However, along with the continuous progress of the technology level, the existing charging pile device also gradually exposes some problems, the existing device cannot ensure that a user can put a charging gun back to the original position after using the charging pile, when the charging gun is placed on the ground, the charging gun can be stepped on by mistake, touched by mistake or rolled by an automobile, and further the charging gun is damaged or electric shock accidents are caused, and when the charging gun is exposed in the air for a long time, the charging gun can be influenced by environmental factors such as water, dust and the like, so that the problems of damage, corrosion, short circuit and the like of the charging gun are caused, the normal work of the charging pile is further influenced, and the service life of equipment is shortened.

Meanwhile, when a user forgets to pull out the charging gun and directly drive away the vehicle, the connecting part between the charging gun and the charging pile is damaged or loosened, so that the problems of poor contact or short circuit and the like are caused, the circuit system inside the charging pile is damaged, meanwhile, the circuit system of the charging pile is required to bear current impact when the vehicle is started, overload or damage to the circuit system of the charging pile is caused by current, and when the vehicle is driven away, the charging gun is pulled by the charging pile and the vehicle, so that the charging pile and the vehicle are mutually damaged, and further safety accidents can be caused.

Therefore, an automatic power-off protection device for the abnormal condition of the charging pile is provided.

Disclosure of Invention

The invention aims to provide an automatic power-off protection device for abnormal conditions of a charging pile, so as to solve the problems in the background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an automatic power-off protection device of electric pile abnormal conditions fills, includes the box, passes through the groove, pass through the groove and open in the surface of box, the bottom four corners of box all fixedly connected with fixed leg, the surface fixedly connected with alarm of box, the box is kept away from and is fixedly connected with total source plug on the inner wall of one side of passing through the groove, box inner chamber top fixedly connected with controller, the inside buffer module that is used for playing the cushioning effect to electric pile that fills that is provided with of box, the inside protection module that is used for the power-off protection to fill electric pile that is provided with of box;

the protection assembly comprises a bearing disc which is fixedly connected to the inner wall of the box body, a stop block is fixedly connected to the surface of one side of the bearing disc, which is close to the total source plug, in an annular equidistant arrangement mode, a rotating disc is rotationally connected to the stop block, and rolling grooves are formed in the surface of the rotating disc in an annular equidistant arrangement mode.

Preferably, the buffering subassembly is including the roller, the roller rotates to be connected in the inner chamber bottom of box, the top fixedly connected with cable roller of roller, the top fixedly connected with jump ring piece of cable roller, fixedly connected with torsional spring on the jump ring piece inner wall, the top fixedly connected with of torsional spring turns round force transducer, the top fixedly connected with of turning round force transducer is at the inner chamber top of box, the box is close to and has offered the dashpot through the inside annular equidistance arrangement of one side surface of groove, equal fixedly connected with buffer spring on the inner wall of dashpot, equal fixedly connected with buffer block on the buffer spring, fixedly connected with support couple on the lateral wall of box.

Preferably, the protection subassembly still includes the protection casing, fixedly connected with electric induction post on the inner wall of protection casing, the inside rifle that charges that has passed through of protection casing, the tail end fixedly connected with cable of rifle that charges, total source plug joint in the tail end of cable, cable sliding connection is in the inside through the groove, fixedly connected with automatically controlled telescopic link on the inner wall of one side that the box is close to the protection casing, automatically controlled telescopic link's output rotates and is connected with the promotion handle, promote handle fixedly connected with in the surface of rotating the disc, the equal fixedly connected with visor in surface of dog, the sliding tray has been seted up to the surface of visor be annular equidistance arrangement, the equal sliding connection of sliding tray is inside firm post, the equal sliding connection of firm post is in the inside of rolling tray, firm post is close to the equal fixedly connected with tongs of one end of total source plug.

Preferably, the device power supply is arranged in the box body, and the device power supply is electrically connected with the alarm, the total source plug, the controller, the torsion sensor and the electric induction column, so that the effect of electrically connecting the device power supply with other electric appliances is achieved.

Preferably, the controller electrically controls the extension of the electric control telescopic rod, so that the electric control telescopic rod can extend to push the pushing handle.

Preferably, the ratio of the resistance value of the electric induction column to the resistance value of the alarm is one to two, so that the effect of the electric induction column that the current flows to the resistance value is smaller is achieved.

Preferably, the torsion sensor is electrically connected with the controller, and plays a role in that the torsion sensor can send an electric signal to the controller.

Preferably, the material of the godet roller is PTFE, which plays roles of wear resistance and rotation through friction with a cable.

Preferably, the box 11 is provided with a circuit, and the circuit includes a switch A and a switch I, which plays a role in breaking the circuit.

Compared with the prior art, the invention has the beneficial effects that:

1. the alarm always gives an alarm after the user finishes using the charging pile, so that the effect of urging the user to put the charging gun back to the designated position is realized, the structure can promote the user to put the charging gun back to the designated position after using the charging pile, the standard use consciousness of the user is enhanced, the situation that the charging gun is easily damaged by external natural factors and human factors when the charging gun is placed at an irregular position is reduced, and the use safety of the charging gun is improved;

2. the cable is in a movable state through the torsion sensor, further when a user does not put the charging gun back to the original position due to wearing of a headset and other conditions, the connection between the cable and the main source plug can be disconnected, the structure not only avoids the situation that the charging gun is pulled due to accidents, but also avoids damage to the charging gun or damage to a vehicle, and ensures the safety of the user and the vehicle, and meanwhile, the structure can minimize the loss in the accident loss due to the connection between the disconnected cable and the main source plug;

3. the buffer block is abutted to the cable, and the buffer effect is added to the cable, so that the tensile strength and the wear resistance of the cable are enhanced, the cable is not easy to damage, the service life of the cable is prolonged, meanwhile, the structure enables the cable to be more stable and reliable, the maintenance and the management are convenient, the influence of the resistance and the inductance on the charging efficiency can be reduced, and the charging efficiency is further guaranteed.

Drawings

FIG. 1 is a schematic perspective view of a main structure of the present invention;

FIG. 2 is a schematic perspective view of the internal structure of the present invention;

FIG. 3 is a schematic cross-sectional perspective view of the protective assembly of the present invention;

FIG. 4 is an enlarged schematic view of the structure A in FIG. 3 according to the present invention;

FIG. 5 is a schematic perspective view of the connection relationship of the protection component of the present invention;

FIG. 6 is an enlarged schematic view of the structure of FIG. 5B according to the present invention;

FIG. 7 is an enlarged schematic view of the structure of FIG. 5C according to the present invention;

FIG. 8 is a perspective view of the position relationship of the protection component of the present invention;

FIG. 9 is a schematic partial perspective view of a cushioning assembly according to the present invention;

fig. 10 is a circuit diagram of an automatic power-off protection device for an abnormal condition of a charging pile.

In the figure:

11. a case; 12. a pass through slot; 13. a fixed leg; 14. an alarm; 15. a total source plug; 16. a controller;

2. a buffer assembly; 21. a roll shaft; 22. a godet roller; 23. a clamp spring block; 24. a torsion spring; 25. a torsion sensor; 26. a buffer tank; 27. a buffer spring; 28. a buffer block; 29. a supporting hook;

3. a protection component; 31. a protective housing; 32. an electrical induction column; 33. a charging gun; 34. a cable; 35. a receiving tray; 36. a stop block; 37. rotating the disc; 38. a rolling groove; 39. an electric control telescopic rod; 310. pushing the handle; 311. a protective cover; 312. a sliding groove; 313. stabilizing the column; 314. a grip.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.

Embodiments of the invention

Referring to fig. 1 to 10, the present invention provides an embodiment: the utility model provides an automatic power-off protection device of electric pile abnormal conditions fills, including box 11, pass through groove 12, open through groove 12 and locate the surface of box 11, the bottom four corners of box 11 all fixedly connected with fixed leg 13, the built-in equipment power of box 11, the built-in circuit of box 11, contain switch A and switch one in the circuit, play the effect of breaking circuit, when the electric pile begins to charge, controller 16 electrical control switch one is closed, after the charging, controller 16 electrical control switch one is opened, when cable 34 passes through total source plug 15 and equipment power connection, switch A opens, when cable 34 passes through total source plug 15 and equipment power no longer connects, equipment power and alarm 14, total source plug 15, controller 16, torsion sensor 25, electrical induction post 32 electrical connection has played the effect of passing through equipment power and other electrical appliances, the surface of box 11 is fixedly connected with alarm 14, controller 16 is fixedly connected with on the inner wall of one side of box 11 far away from through groove 12, controller 16 electrical control plug 16 is connected with on the inner chamber top of box 11, controller 16 electrical control rod 39 is used for stretching the electric pile, electric pile 3 is used for setting up the electric pile extension assembly to fill, the inside is stretched out and is used for protecting the electric pile 2, the electric pile extension assembly is arranged inside, the electric pile extension assembly is protected in the electric pile 3 is arranged;

the protection assembly 3 comprises a bearing disc 35, the bearing disc 35 is fixedly connected to the inner wall of the box 11, a stop block 36 is fixedly connected to the surface of one side of the bearing disc 35, which is close to the total source plug 15, in an annular equidistant arrangement, a rotating disc 37 is rotatably connected to the stop block 36, and rolling grooves 38 are annularly equidistant arranged on the surface of the rotating disc 37.

The buffer assembly 2 comprises a roll shaft 21, the roll shaft 21 is rotationally connected to the bottom of an inner cavity of the box 11, a cable guide roller 22 is fixedly connected to the top end of the roll shaft 21, the cable guide roller 22 is made of PTFE, the wear-resistant and rotatable functions of the cable guide roller are achieved through friction with a cable 34, a clamp spring block 23 is fixedly connected to the top end of the cable guide roller 22, a torsion spring 24 is fixedly connected to the inner wall of the clamp spring block 23, a torsion sensor 25 is fixedly connected to the top end of the torsion spring 24, the torsion sensor 25 is electrically connected with the controller 16, the function that the torsion sensor 25 can send an electric signal to the controller 16 is achieved, the top end of the torsion sensor 25 is fixedly connected to the top of the inner cavity of the box 11, buffer grooves 26 are formed in annular equidistant arrangement in the surface of one side, which is close to the through grooves 12, buffer springs 27 are fixedly connected to the inner walls of the buffer grooves 26, buffer blocks 28 are fixedly connected to the side walls of the buffer springs 27, and supporting hooks 29 are fixedly connected to the side walls of the box 11.

The protection assembly 3 further comprises a protection shell 31, an electric induction column 32 is fixedly connected to the inner wall of the protection shell 31, the ratio of the resistance value of the electric induction column 32 to the resistance value of the alarm 14 is one to two, the effect of the electric induction column 32 with smaller current flow direction resistance value is achieved, a charging gun 33 is clamped inside the protection shell 31 through the electric induction column 32, a cable 34 is fixedly connected to the tail end of the charging gun 33, a main source plug 15 is clamped to the tail end of the cable 34, the cable 34 is slidingly connected to the inside of the through groove 12, an electric control telescopic rod 39 is fixedly connected to the inner wall of one side of the box 11, close to the protection shell 31, an output end of the electric control telescopic rod 39 is rotationally connected with a pushing handle 310, the pushing handle 310 is fixedly connected to the surface of the rotating disc 37, a protective cover 311 is fixedly connected to the surface of the stop 36, the surface of the protective cover 311 is annularly equidistantly distributed and provided with sliding grooves 312, the stabilizing columns 313 are slidingly connected to the inside the rolling grooves 38, and one ends of the stabilizing columns 313, close to the main source plug 15 are fixedly connected with a hand grip 314.

The following is the overall working principle of the above embodiment:

the following are initial states: the cable 34 is clamped with the main source plug 15, the cable 34 is positioned in the through groove 12, the electric control telescopic rod 39 is in a natural stretching state, the stabilizing column 313 is positioned on one side, close to the axis of the receiving disc 35, of the inside of the sliding groove 312, the cable 34 is wound on the surface of the cable guiding roller 22, the torsion spring 24 is in a loose state, the buffer groove 26 is in a compressed state, the charging gun 33 is clamped inside the protection shell 31 through the electric induction column 32, the alarm 14 does not send out audible and visual alarms at the moment, the grippers 314 are in interference with the cable 34, at the moment, the switch A is started as soon as a switch in a circuit is started.

The following working principle is as follows:

when the charging pile is used normally:

when the user selects the charging time, the controller 16 controls the switch I to be turned on, and the current does not flow to the electric induction column 32 through the switch I because the resistance of the lead is smaller than that of the electric appliance, then the user manually takes the charging gun 33 out of the protective shell 31, and the electric induction column 32 is not in contact with the protective shell 31, and the electric induction column 32 is in an open circuit state, then the user clamps the charging gun 33 to a charging port of the automobile, and then the charging pile conveys the current to the inside of the automobile through the charging gun 33 and the cable 34.

When the charging is completed, the system automatically charges, the controller 16 controls the switch to be turned off, only the alarm 14 is in the circuit, current flows to the alarm 14, meanwhile, the system prompts the user to put the charging gun 33 back to the designated position, then the user manually pulls the charging gun 33 out of the charging port of the automobile, and clamps the charging gun 33 with the electric induction column 32 and puts the charging gun back into the protective shell 31, at the moment, the electric induction column 32 is in a communication state in the circuit, and current does not flow to the alarm 14 any more but flows to the electric induction column 32.

When the user does not place the charging gun 33 at a specified position:

when the charging is completed by the charging pile, the system can automatically deduct fees, the controller 16 controls the switch to be closed, only the alarm 14 in the circuit is in a passage, current can flow to the alarm 14, meanwhile, the system prompts a user to put the charging gun 33 back to a specified position, but when the user does not put the charging gun 33 back to the specified position due to external factors, the alarm 14 is electrified at the moment and continuously sends out an audible and visual alarm to prompt the user to put the charging gun 33 in the specified position, the alarm 14 always gives an alarm after the user finishes using the charging pile, the effect of prompting the user to put the charging gun 33 back to the specified position is achieved, the structure can prompt the user to put the charging gun 33 back to the specified position after the user finishes using the charging pile, the normal use consciousness of the user is enhanced, the situation that the charging gun 33 is easily damaged by external natural factors and human factors when the charging gun 33 is put in an irregular position is reduced, and the use safety of the charging gun 33 is improved.

At this time, after the user hears the warning sent by the alarm 14, the charging gun 33 is pulled out from the charging port of the automobile, the charging gun 33 is clamped with the electric induction column 32 and is put back into the protective shell 31, in the process, the electric induction column 32 is clamped with the charging gun 33, at this time, the electric induction column 32 is in a communication state in a circuit, and current flows to the electric induction column 32 and does not flow to the alarm 14 any more, at this time, the alarm 14 is powered off, and no acousto-optic alarm is sent out any more.

When the user does not pull out the charging gun 33 and turns the vehicle off:

when charging with the charging pile is completed, the system can automatically deduct fees, the controller 16 controls the switch to be closed, only the alarm 14 in the circuit is in a passage, current can flow to the alarm 14, meanwhile, the system prompts a user to put the charging gun 33 back to a designated position, but when the user does not pull the charging gun 33 out of the vehicle due to other factors and starts the vehicle, the cable 34 receives traction force from the vehicle through the charging gun 33 and continuously rubs against the buffer block 28 in the stretched process, the cable 34 receives buffering force of the buffer block 28, the buffer block 28 collides against the cable 34, and a buffering effect is added to the cable 34, so that the tensile strength and the wear resistance of the cable 34 are enhanced, the cable 34 is not easy to damage, the service life of the cable 34 is prolonged, the structure enables the cable 34 to be more stable and reliable, the cable is convenient to maintain and manage, the influence of the resistance and the inductance on the charging efficiency can be reduced, and the charging efficiency is further guaranteed.

When the cable 34 continues to be stretched by the automobile, the cable 34 wound on the surface of the cable guiding roller 22 is gradually stretched out of the box 11, the cable 34 drives the cable guiding roller 22 to rotate under the action of friction force, the torsion spring 24 is tensioned by the rotation of the cable guiding roller 22, the tension degree of the torsion spring 24 is detected by the torsion sensor 25, when the torsion spring 24 is tensioned and reaches a critical value, the tension degree of the torsion spring 24 is electrically controlled by the torsion sensor 25 to extend the electric control telescopic rod 39, the extension of the electric control telescopic rod 39 drives the pushing handle 310 to rotate, the rotating disc 37 is further rotated, the rotating disc 37 rotates clockwise, the rotating disc 37 drives the stabilizing column 313 in the rolling groove 38 to move away from the axis, the stabilizing column 313 does not rotate under the restriction of the sliding groove 312, but moves towards one side away from the axis of the rotating disc 37, the movement of the stabilizing column 313 drives the gripper 314 to synchronously move, the grip 314 is not in contact with the cable 34 any more, and the cable 34 is stretched out of the box 11 by stretching the cable 34 and stretching the cable 34 out of the box 11 in the process, the cable 34 is not in contact with the total source plug 15 at the moment because the cable 34 is stretched out of the box 11, the cable 34 is in a movable state by the torsion sensor 25, and further when the user does not put the charging gun 33 back to the original position because of wearing headphones and other conditions, the connection between the cable 34 and the total source plug 15 is disconnected, the structure not only avoids the situation that the charging gun 33 is pulled accidentally, thereby avoiding the damage of the charging gun 33 or the damage of the vehicle, and guaranteeing the safety of the user and the vehicle, but also can minimize the loss in the accident loss because of disconnecting the cable 34 from the total source plug 15, at this time, the switch a is turned off, no current is flowing in the circuit, and thus no current is flowing in the cable 34, and at this time, the buffer spring 27 is no longer interfered by the cable 34 through the buffer block 28, so that the buffer spring 27 is in an extended state.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automatic power-off protection device of electric pile abnormal conditions fills, includes box (11), through groove (12), set up in the surface of box (11) through groove (12), the equal fixedly connected with fixed leg (13) in bottom four corners of box (11), the fixed surface of box (11) is connected with alarm (14), fixedly connected with total source plug (15) on one side inner wall through groove (12) is kept away from to box (11), box (11) inner chamber top fixedly connected with controller (16), its characterized in that: a buffer component (2) for buffering the charging pile is arranged in the box body (11), and a protection component (3) for protecting the charging pile in a power-off manner is arranged in the box body (11);

the protection assembly (3) comprises a bearing disc (35), the bearing disc (35) is fixedly connected to the inner wall of the box body (11), a stop block (36) is fixedly connected to one side surface of the bearing disc (35) close to the total source plug (15) in an annular equidistant arrangement mode, a rotating disc (37) is rotationally connected to the stop block (36), and rolling grooves (38) are formed in the surface of the rotating disc (37) in an annular equidistant arrangement mode.

2. The automatic power-off protection device for abnormal conditions of a charging pile according to claim 1, wherein: the utility model provides a buffering subassembly (2) is including roller (21), roller (21) rotate and connect in the inner chamber bottom of box (11), the top fixedly connected with cable roller (22) of roller (21), the top fixedly connected with jump ring piece (23) of cable roller (22), fixedly connected with torsional spring (24) on jump ring piece (23) inner wall, the top fixedly connected with of torsional spring (24) turns round force transducer (25), the top fixedly connected with of turning round force transducer (25) is at the inner chamber top of box (11), box (11) are close to and are annular equidistance and arrange and have seted up buffer tank (26) through the inside one side surface of groove (12), all fixedly connected with buffer spring (27) on the inner wall of buffer tank (26), all fixedly connected with buffer block (28) on buffer spring (27), fixedly connected with support couple (29) on the lateral wall of box (11).

3. The automatic power-off protection device for abnormal conditions of a charging pile according to claim 1, wherein: the utility model provides a protection subassembly (3) still including protection casing (31), fixedly connected with electric induction post (32) on the inner wall of protection casing (31), the inside rifle (33) that charges that has passed through of electric induction post (32) joint of protection casing (31), the tail end fixedly connected with cable (34) of rifle (33) charges, total source plug (15) joint is in the tail end of cable (34), cable (34) sliding connection is in the inside through groove (12), fixedly connected with automatically controlled telescopic link (39) on one side inner wall that box (11) is close to protection casing (31), the output rotation of automatically controlled telescopic link (39) is connected with promotion handle (310), promote handle (310) fixedly connected with in the surface of rotating disc (37), the equal fixedly connected with visor (311) of surface of dog (36), the surface of visor (311) is annular equidistance and arranges and has seted up sliding tray (312), the inside equal sliding connection of sliding tray (312) has firm post (313), firm post (313) are all sliding connection in the inside one end that is close to total source plug (313) is all fixed in the firm post (38).

4. The automatic power-off protection device for abnormal conditions of a charging pile according to claim 1, wherein: the box (11) is internally provided with a device power supply, and the device power supply is electrically connected with the alarm (14), the total source plug (15), the controller (16), the torsion sensor (25) and the electrical induction column (32).

5. The automatic power-off protection device for abnormal conditions of a charging pile according to claim 1, wherein: the controller (16) electrically controls the extension of the electrically controlled telescopic rod (39).

6. An automatic power-off protection device for abnormal conditions of a charging pile according to claim 3, wherein: the ratio of the resistance value of the electric induction column (32) to the resistance value of the alarm (14) is one to two.

7. The automatic power-off protection device for abnormal conditions of a charging pile according to claim 2, wherein: the torsion sensor (25) is electrically connected with the controller (16).

8. The automatic power-off protection device for abnormal conditions of a charging pile according to claim 2, wherein: the material of the cable guiding roller (22) is PTFE.

9. The automatic power-off protection device for abnormal conditions of a charging pile according to claim 1, wherein: the box body (11) is internally provided with a circuit, and the circuit comprises a switch A and a switch I.