A suspended alternating current charging device and automatic winding and unwinding method

Abstract

The application provides a kind of suspension type alternating current charging device and automatic winding and unwinding method, and the electric charging device comprises: a charging gun; AC charging pile, one end extends out power line, the other end extends out charging line; wire reel, comprising first half wire reel and second half wire reel that are relatively buckled into one, the butt joint of two half wire reels is provided with accommodating cavity; AC charging pile is arranged in accommodating cavity, and the butt joint is also respectively provided with power line guide slot and charging line guide slot corresponding to accommodating cavity; power line is threaded along power line guide slot and wound on first half wire reel, charging line is threaded along charging line guide slot and wound on second half wire reel, and then connected with charging gun; electric hoist is suspendedly installed on ceiling or beam, for driving wire reel lifting by traction rope to prevent charging line from twisting winding; wireless inductor is used for sensing the arrival or departure of vehicle, and wireless inductor is communicatively connected with electric hoist; the application has simple and reliable structure, and can be automatically lifted based on the parking of vehicle.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of charging systems, in particular to a suspension type alternating current charging device and an automatic winding and unwinding method. BACKGROUND

[0002] The development of electric vehicles has given rise to the establishment of corresponding charging facilities. At present, the common charging mode for electric vehicles is the electric vehicle charging station. The vehicle needs to drive into the fixed charging station, which is poor in timeliness. In the parking lot, the traditional vertical charging pile can only be set on the side of the parking lot and relies on walls or columns for installation. The vertical charging pile cannot be installed in the case where there is no wall or column around the parking space.

[0003] A Chinese patent with patent number ZL2015100801305 discloses a suspension type electric vehicle charging system for a parking lot, which comprises a charging system, a cable, a cable storage device, and a handheld charging gun. The cable is stored in the cable storage device, and the cable is connected to the charging system and the handheld charging gun. The cable storage device is fixed on the crossbeam above the parking space or on the wall beside the parking space. The cable storage device is a cable recovery system with automatic recovery of the stretched cable or an elastic system or an electrical system that can store the cable. Although this patent discloses a suspension type setting, it still has the following problems:

[0004] 1. The cable needs to be manually pulled out from the cable storage structure. After charging is completed, the charging gun is unplugged, and the cable storage structure automatically recovers the cable. The manual pulling out of the cable increases the operation steps and also has the risk of being stolen.

[0005] 2. The specific cable storage structure is not disclosed. The traditional automatic recovery of the stretched cable recovery system or the elastic system is usually provided with a conductive ring and a brush in the wire reel to prevent the cable from twisting, which makes the structure of the wire reel complex, has a high failure rate, and has a high manufacturing cost.

[0006] Therefore, there is an urgent need for a suspension type alternating current charging device and an automatic winding and unwinding method, which is simple and reliable in structure and can be automatically lifted based on the parking of the vehicle. SUMMARY

[0007] The purpose of the present application is to provide a suspension type alternating current charging device and an automatic winding and unwinding method, which aims to solve the technical problems of the traditional charging device, such as complex structure, cumbersome operation, and high manufacturing cost.

[0008] To achieve the above-mentioned purpose, in a first aspect, the present application provides a suspension type alternating current charging device, which comprises:

[0009] A charging gun is used to interface with the energy interface of the vehicle for charging.

[0010] The alternating current charging pile is used for providing alternating current power of a preset power, one end of which extends a power line connected with a power source, and the other end extends a charging line connected with a charging gun;

[0011] The wire reel comprises a first half wire reel and a second half wire reel which are buckled into one body, and a receiving cavity is arranged at the joint of the first half wire reel and the second half wire reel; the alternating current charging pile is arranged in the receiving cavity, and the joint of the first half wire reel and the second half wire reel is respectively provided with a power line guide groove and a charging line guide groove which are in communication with the receiving cavity;

[0012] The power line is arranged on the first half wire reel through the power line guide groove, and the charging line is arranged on the second half wire reel through the charging line guide groove and is connected with the charging gun;

[0013] Two electric hoists are suspended on a ceiling or a beam and are used for driving the wire reel to lift or lower to prevent the charging line from being twisted;

[0014] A wireless inductor is arranged on any electric hoist and is used for sensing the arrival or departure of a corresponding vehicle, and the wireless inductor is in communication connection with the electric hoist and is used for controlling the lowering or lifting of the two electric hoists.

[0015] As a further improvement of the above scheme, the first half wire reel comprises a first half reel and a first flange plate arranged at one end of the first half reel, and the second half wire reel comprises a second half reel and a second flange plate arranged at one end of the second half reel;

[0016] The first half reel is provided with a first receiving groove at the end away from the flange plate, the second half reel is provided with a second receiving groove at the end away from the flange plate, and the first half reel and the second half reel are detachably buckled into one body, and the first receiving groove and the second receiving groove are matched to form the receiving cavity;

[0017] The first flange plate and the second flange plate are respectively provided with a traction rope groove on the wire reel, and the traction rope groove is used for winding and unwinding the traction rope.

[0018] As a further improvement of the above scheme, the main projection of the receiving cavity is a square matched with the shape of the alternating current charging pile;

[0019] The power line guide groove and the charging line guide groove are respectively arranged at two opposite corners of the square receiving groove.

[0020] As a further improvement of the above scheme, the traction rope groove is provided with a traction rope fixing hole, and the traction rope is arranged through the traction rope fixing hole and is fixedly connected with the wire reel.

[0021] As a further improvement of the above-mentioned scheme, the electric hoist comprises an electric drum and a flange fixed at one end of the electric drum and arranged around the traction rope; the other end of the traction rope is fixed on the corresponding half reel through the suspension rope fixing hole.

[0022] Two electric hoists are arranged correspondingly to the flanges of the first half reel and the second half reel.

[0023] As a further improvement of the above-mentioned scheme, the wireless induction device induces the arrival or departure of the vehicle by matching with the Bluetooth on the vehicle or the owner's mobile device.

[0024] As a further improvement of the above-mentioned scheme, the charging gun is provided with a plug-in induction device, and the plug-in induction device is in communication connection with the electric hoist, for cooperatively controlling the descent or ascent of the two electric hoists with the wireless induction device.

[0025] As a further improvement of the above-mentioned scheme, the suspension type alternating current charging device further comprises a controller, the wireless induction device and the plug-in induction device are in communication connection with the controller, and the controller is in electrical connection with the electric hoist.

[0026] In the second aspect, the application further provides an automatic winding and unwinding method of the suspension type alternating current charging device provided in the first aspect, and the steps comprise:

[0027] S1, when the wireless induction device induces the vehicle, the controller controls the two electric hoists to rotate forward to unwind the traction rope, the reel releases the charging wire and the power wire received at both ends of the charging pile while rotating with the unwinding of the traction rope, until the charging gun on the reel reaches a first preset height, and the two electric hoists stop rotating.

[0028] S2, when the wireless induction device loses the pairing signal or the charging gun does not detect the insertion signal within a preset time, it is judged that the vehicle leaves, the controller controls the two electric hoists to rotate reversely to wind up the traction rope, the reel receives the charging wire and the power wire at both ends of the charging pile while rotating with the winding of the traction rope, until the reel rises to a second preset height, and the two electric hoists stop rotating.

[0029] As a further improvement of the above-mentioned scheme, in step S1, when the charging gun reaches the first preset height, if the user inserts the charging gun into the vehicle energy interface, the charging gun detects the insertion signal, and the charging pile starts to charge the vehicle.

[0030] If the user does not insert the charging gun into the vehicle energy interface, the charging gun does not detect the insertion signal within a preset time, and step S2 is performed.

[0031] As a further improvement of the above scheme, when the two electric hoists rotate, the traction rope is guided in the traction rope groove, and the wire reel rotates to release or store the charging wire and the power supply wire thereon.

[0032] Due to the above technical scheme, the present application has the following beneficial effects: The present application provides a suspension type alternating current charging device, which comprises an electric hoist that can be hung on a ceiling or a beam, and a wire reel. The wire reel comprises a first half wire reel and a second half wire reel that can be buckled together. An alternating current charging pile is arranged in a receiving groove at the butt joint of the two half wire reels, so that the power supply wire of the alternating current charging pile is wound around the first half wire reel, and the charging wire is wound around the second half wire reel, thereby reducing the length of the two wires. The electric hoist drives the wire reel to ascend and descend through a traction rope, so that the power supply wire and the charging wire can be effectively prevented from being twisted during winding and unwinding. In addition, the charging pile can be hidden in the wire reel, which increases the aesthetic appearance and makes the installation of the suspension type alternating current charging device convenient. Only the electric hoist needs to be hung on the ceiling or the beam, which effectively solves the installation demand of the charging device for electric vehicle owners who have no wall around them. Moreover, the device is small and does not occupy ground space.

[0034] In addition, a wireless inductor for sensing the arrival or departure of a vehicle is arranged in the present application, and the wireless inductor is in communication connection with the electric hoist. When the wireless inductor senses the arrival of a vehicle, the controller receiving the signal controls the electric hoist to rotate forward, and drives the wire reel to rotate while releasing the charging wire and the power supply wire thereon. Until the charging gun is lowered to a preset height for charging the vehicle, the electric hoist stops rotating, and the vehicle owner charges the vehicle through the charging gun. Correspondingly, when the wireless inductor cannot sense the signal matched with the vehicle, or the charging gun does not detect the insertion signal within a preset time, it is judged that the vehicle has left, and the electric hoist is started to rotate reversely again, gradually storing the traction rope on the electric drum, and driving the wire reel to store the charging wire and the power supply wire thereon. Until the wire reel is raised to a second preset height, the electric hoist stops rotating. The winding and unwinding of the entire charging device can be automatically performed, and the user only needs to plug and unplug the charging gun to the vehicle energy interface, which reduces the charging operation steps, promotes the user to form the good habit of charging the vehicle at any time when it is parked, makes the electric vehicle connect to the power grid for a longer time, fully utilizes the excess energy storage capacity of the electric vehicle to exchange electric energy, relieves the short-time load pressure of the power grid equipment, and improves the power grid's ability to consume clean energy.

[0035] The application is based on the small volume of the alternating current charging pile, and the alternating current charging pile is arranged at the butt joint of the two half wire drums, the power line and the charging line on the alternating current charging pile are arranged on the corresponding half wire drums, the power line and the charging line are not twisted, the length of the power line and the charging line is reduced, the cable twisting is avoided, and the stability of the charging and the high power transmission capacity are ensured; compared with the traditional cable automatic winding, the electric ring and the electric brush are arranged in the wire drum to prevent the twisting, the electric ring and the electric brush are not arranged in the application, the twisting of the cable is avoided, the structure is simple, the manufacturing cost is low, and the failure is not prone to occur. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort based on the drawings shown.

[0037] Figure 1 It is a perspective view of a suspension type alternating current charging device disclosed by the present application;

[0038] Figure 2 It is a perspective view of a suspension type alternating current charging device (removing the second half wire drum and the charging gun) disclosed by the present application;

[0039] Figure 3 It is a sectional view of a wire drum disclosed by the present application;

[0040] Figure 4 It is a perspective view of a first half wire drum disclosed by the present application;

[0041] Figure 5 It is a front view of a first half wire drum disclosed by the present application;

[0042] Figure 6 It is Figure 5 A-A sectional view.

[0043] Reference signs:

[0044] 1, charging gun; 2, alternating current charging pile; 21, power line; 22, charging line; 3, wire drum; 31, first half wire drum; 311, first half winding drum; 312, first flange plate; 313, first accommodating groove; 32, second half wire drum; 321, second half winding drum; 322, second flange plate; 323, second accommodating groove; 33, traction rope groove; 4, accommodating cavity; 5, power line guide groove; 6, charging line guide groove; 7, electric hoist; 8, traction rope.

[0045] The realization of the objectives, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0046] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0047] It should be noted that all directional indications (such as up, down, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0048] In addition, the terms "first," "second," and so on, used in this disclosure are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one of these features.

[0049] Moreover, the technical solutions between the various embodiments of the present invention may be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0050] Example 1

[0051] See also Figures 1-2 The present invention provides a suspended AC charging device, comprising:

[0052] The charging gun 1 is used to connect to the vehicle's energy interface for charging. The charging gun 1 is provided with a plug-in sensor for sensing the plug-in and plug-out information of the vehicle's energy interface; the plug-in sensor is communicatively connected to the electric winch 7 and is used to coordinate with the radio sensor to control the descent or ascent of the two electric winches 7;

[0053] The AC charging station 2 is used to provide AC power of a preset power. One end of the AC charging station extends a power cord 21 connected to the power source, and the other end of the AC charging station extends a charging cord 22 connected to the charging gun 1.

[0054] Reel 3, see Figures 3-6, including relatively buckled into one of the first half wire disc 31 and the second half wire disc 32, the butt joint of the first half wire disc 31 and the second half wire disc 32 is provided with a containing cavity 4;The alternating current charging pile 2 is arranged in the containing cavity 4, and the butt joint of the first half wire disc 31 and the second half wire disc 32 is also respectively provided with a power line guide groove 5 and a charging wire guide groove 6 corresponding to the containing cavity 4 in communication;

[0055] The power line 21 is arranged on the first half wire disc 31 along the power line guide groove 5, and the charging wire 22 is arranged on the second half wire disc 32 along the charging wire guide groove 6 and connected with the charging gun 1;

[0056] Two electric hoists 7 are suspended on the ceiling or beam and used to drive the wire disc 3 to lift through the traction rope 8 to prevent the charging wire 22 from being twisted and retracted;

[0057] A wireless inductor is arranged on any of the electric hoists 7 and used to induct the arrival or departure of the corresponding vehicle, the wireless inductor is in communication connection with the electric hoist 7 and used to control the descent or ascent of the two electric hoists 7;

[0058] A controller, the wireless inductor and the plug-in inductor are in communication connection with the controller respectively, and the controller is also in electrical connection with the electric hoist 7;

[0059] In the application, the electric hoist 7 is suspended on the ceiling or beam, the wire disc 3 includes the first half wire disc 31 and the second half wire disc 32 which can be buckled into one, the alternating current charging pile 2 is arranged in the containing groove at the butt joint of the two half wire discs 3, so that the power line 21 of the alternating current charging pile 2 is arranged on the first half wire disc 31 and the charging wire 22 is arranged on the second half wire disc 32, the length of the two lines can be reduced, the electric hoist 7 drives the wire disc 3 to lift through the traction rope 8 to effectively prevent the power line 21 and the charging wire 22 from being twisted and retracted;In addition, the charging pile can be hidden in the wire disc 3, the appearance is improved, and the installation of the suspension type alternating current charging device is convenient, only the electric hoist 7 needs to be suspended on the ceiling or beam, the installation demand of the charging device of the electric vehicle without wall around is effectively solved, and the equipment is small and does not occupy ground space;

[0060] In addition, a radio inductor for sensing the arrival or departure of the vehicle is further provided in the application, and the radio inductor is in communication connection with the electric hoist 7. When the radio inductor senses the arrival of the vehicle, the controller receiving the signal controls the electric hoist 7 to rotate forward, and drives the wire drum 3 to rotate and release the charging wire 22 and the power line 21 thereon, until the charging gun 1 is lowered to a preset height for charging the vehicle, and then the electric hoist 7 stops rotating, and the vehicle owner charges the vehicle through the charging gun 1. Correspondingly, when the radio inductor cannot sense the signal matched with the vehicle, or the charging gun 1 does not detect the insertion signal within a preset time, it is judged that the vehicle departs, and the electric hoist 7 is started again to rotate reversely, and gradually stores the traction rope 8 into the electric drum, and drives the wire drum 3 to store the charging wire 22 and the power line 21 thereon, until the wire drum 3 is lifted to a second preset height, and then the electric hoist 7 stops rotating. The winding and unwinding of the whole charging device can be automatically performed, and the user only needs to plug and unplug the charging gun 1 to the vehicle energy interface, so that the charging operation steps are reduced, the user can be encouraged to form the good habit of charging the vehicle at hand when parking, the electric vehicle can be connected to the power grid for a longer time, the excess energy storage capacity of the electric vehicle can be fully utilized for the exchange of electric energy, the short-time load pressure of the power grid equipment is relieved, and the power grid's ability to consume clean energy is improved.

[0061] Based on the small volume of the alternating current charging pile 2, the alternating current charging pile 2 is built-in at the butt joint of the two half wire drums 3, the power line 21 and the charging wire 22 on the alternating current charging pile 2 are respectively wound on the corresponding half wire drum 3, so that the power line 21 and the charging wire 22 cannot be twisted with each other, and the winding and unwinding lengths of the power line 21 and the charging wire 22 are reduced, the cable twisting is avoided from the root, and the stability of charging and the high power transmission capacity are ensured. Compared with the traditional cable automatic hoist, the electric ring and the brush are usually arranged in the wire drum 3 to prevent the twisting, the cable twisting can be avoided without arranging the electric ring and the brush and other parts, the structure is simple, the manufacturing cost is low, and the faults are not easy to occur.

[0062] As a preferred embodiment, referring to Figure 3 , the first half wire drum 31 comprises a first half drum 311 and a first flange plate 312 arranged at one end of the first half drum 311, and the second half wire drum 32 comprises a second half drum 321 and a second flange plate 322 arranged at one end of the second half drum 321;

[0063] The first half drum 311 is provided with a first accommodating groove 313 away from the flange plate end, the second half drum 321 is provided with a second accommodating groove 323 away from the flange plate end, and the first half drum 311 and the second half drum 321 can be detachably buckled into an integrated whole, and the first accommodating groove 313 and the second accommodating groove 323 arranged in a matched mode form the accommodating cavity 4;

[0064] Specifically, in the present embodiment, the front view of the accommodating cavity 4 is a square shape matching the shape of the alternating current charging pile 2; the power line guide groove 5 and the charging line guide groove 6 are respectively arranged at two opposite corners of the square accommodating groove; during installation, first, the alternating current charging pile 2 is clamped in the accommodating cavity 4, and the power line 21 is led out from the power line guide groove 5 and wound on the first half winding drum 311, and the charging line 22 is led out from the charging line guide groove 6, then the second accommodating groove 323 of the second half winding drum 32 is matched and buckled on the first accommodating groove 313, and finally the charging line 22 is wound on the second half winding drum 321, and the end portion extending out of the second half winding drum 321 is connected to the charging gun 1;

[0065] After the first half winding drum 311 and the second half winding drum 321 are buckled, they can be tightly connected as a whole by screws, or the first half winding drum 311 and the second half winding drum 321 are provided with buckling structures matched with each other, and the two half winding drums are detachably connected through the buckling structures;

[0066] Referring to Figure 3 , the first flange plate 312 and the second flange plate 322 of the winding drum 3 are respectively provided with a traction rope 8 line groove 33 for winding and unwinding the traction rope 8; and under the action of the gravity of the winding drum 3, the charging line 22 and the power line 21, the traction rope 8 is in a tension state, which can make the winding drum 3 rotate under the guidance of the traction rope 8 line groove 33, so that the charging line 22 and the power line 21 on the winding drum 3 can be released or stored.

[0067] As a preferred embodiment, the traction rope 8 line groove 33 is provided with a traction rope 8 fixing hole (not shown in the figure) for the end of the traction rope 8 away from the electric hoist 7 to pass through and be fixedly connected with the winding drum 3; after the traction rope 8 line groove 33 passes through the traction rope 8 fixing hole, it can be connected with the winding drum 3 in the form of knotting or by arranging a blocking piece.

[0068] As a preferred embodiment, the electric hoist 7 includes an electric winding drum and the traction rope 8 fixed at one end of the electric winding drum and wound thereon; the other end of the traction rope 8 is fixed on the corresponding half winding drum 3 through the hanging rope fixing hole;

[0069] The two electric hoists 7 are arranged side by side and suspended on the ceiling or the cross beam, and are respectively arranged corresponding to the flange plate of the first half winding drum 31 and the flange plate of the second half winding drum 32;

[0070] In the application, the power line 21 and the charging line 22 are prevented from being twisted by two conventional electric hoists 7, and the structure is simple, compared with the traditional automatic telescopic reel device (for example, a piece of Chinese patent with the patent number ZL2016102552797 discloses a conductive slip ring and a cable winding device using the conductive slip ring, the conductive slip ring and the reel rotate in the same direction and at the same speed when winding the cable, which can effectively eliminate the cable damage caused by long-term self-twisting during winding, and prolong the service life of the cable), without the need to set the conductive ring and the brush, so that the suspension type alternating current charging device provided by the application has the advantages of simple structure, high reliability and low cost.

[0071] As a preferred embodiment, the radio inductor senses the arrival or departure of the vehicle by matching with the Bluetooth of the vehicle or the Bluetooth on the mobile device of the owner through the Bluetooth protocol; preferably, the mobile device of the owner is a mobile phone or a tablet computer; specifically, if the radio inductor senses the pairing signal, the controller sends a winding signal to the electric hoist 7, and the charging line 22 carrying the charging gun 1 is lowered for the user to use; if the radio inductor loses the pairing signal or the charging gun 1 does not detect the insertion signal within the preset time, the controller sends a winding signal to the electric hoist 7, and the charging line 22 carrying the charging gun 1 is raised.

[0072] It should be noted that the plug of the charging gun 1 is provided with a plug-in inductor contact, which is used as a connection detection signal to detect whether the connection state of the charging pile and the vehicle energy interface is normal.

[0073] Embodiment 2

[0074] The application also provides an automatic winding and unwinding method of the suspension type alternating current charging device provided in the embodiments, and the steps include:

[0075] S1, when the radio inductor senses the vehicle, the controller controls the two electric hoists 7 to rotate in the forward direction to release the traction rope 8, and the line reel 3 releases the charging line 22 and the power line 21 received at both ends of the charging pile at the same time while rotating, until the charging gun 1 on the line reel 3 reaches the first preset height, and the two electric hoists 7 stop rotating; at this time, the user can choose to insert the charging gun 1 into the vehicle energy interface for charging or choose not to charge according to his own needs; if the user inserts the charging gun 1 into the vehicle energy interface, the charging gun 1 detects the insertion signal, and the charging pile starts to charge the vehicle;

[0076] If the user does not insert the charging gun 1 into the vehicle energy interface, or, after the charging is completed, the user pulls out the charging gun 1, that is, the charging gun 1 does not detect the insertion signal within the preset time, when the owner leaves or the vehicle is turned off, the wireless inductor loses the pairing signal, step S2 is performed;

[0077] It should be noted that the charging gun 1 meeting the national standard design standard is provided with a locking device, the charging gun 1 in the gun insertion state is locked by the paired vehicle, the charging gun 1 cannot be pulled out, and the charging gun 1 cannot be pulled out without operating the paired vehicle, so that the non-owner theft can be avoided;

[0078] Specifically, the first preset height can be flexibly set according to the height of the vehicle energy charging port during initial use;

[0079] S2, when the wireless inductor loses the pairing signal, or the charging gun 1 does not detect the insertion signal within the preset time, it is judged that the vehicle leaves, the controller controls the two electric hoists 7 to rotate reversely to wind up the traction rope 8, the wire reel 3 winds up along with the winding of the traction rope 8, the wire reel 3 winds up the charging wire 22 and the power line 21 at both ends of the charging pile thereon while rotating, until the wire reel 3 rises to the second preset height, and the two electric hoists 7 stop rotating;

[0080] The winding and unwinding of the entire charging device can be automatically performed, the user only needs to insert and pull out the charging gun 1 to the vehicle energy interface, the charging operation steps are reduced, the user can be encouraged to form the habit of charging the vehicle at any time, the electric vehicle can be connected to the power grid for a longer time, the excess energy storage capacity of the electric vehicle is fully utilized to exchange electric energy, the short-time load pressure of the power grid equipment is relieved, and the power grid clean energy consumption capacity is improved.

[0081] As a preferred embodiment, when the two electric hoists 7 rotate, the traction rope 8 is guided by the traction rope 8 line groove 33 when the traction rope 8 is released or wound up, and the wire reel 3 rotates to release or wind up the power line 21 and the charging wire 22 thereon.

[0082] The above is only a preferred embodiment of the present application, and does not limit the patent range of the present application, any equivalent structural transformation made according to the inventive concept of the present application, or direct / indirect application in other related technical fields is included in the patent protection range of the present application.

Claims

1. A suspended AC charging device, characterized in that, The utility model relates to a charging device for electric vehicle, comprising: a charging gun for charging with the energy interface of the vehicle; an alternating current charging pile for providing preset power alternating current energy, one end of which extends out a power line connected with the power supply, and the other end of which extends out a charging line for connecting with the charging gun; a wire reel comprising a first half wire reel and a second half wire reel which are relatively buckled into one, the butt joint of the first half wire reel and the second half wire reel is provided with a containing cavity; the alternating current charging pile is arranged in the containing cavity, and the butt joint of the first half wire reel and the second half wire reel is also respectively provided with a power line guide slot and a charging line guide slot corresponding to the containing cavity; the power line passes through the power line guide slot and is arranged on the first half wire reel, and the charging line passes through the charging line guide slot and is arranged on the second half wire reel and is connected with the charging gun; an electric hoist is suspendedly installed on the ceiling or the beam and is used for driving the wire reel to lift or lower to prevent the charging line from being twisted; a wireless induction device is arranged on any electric hoist and is used for inducting the arrival or departure of the corresponding vehicle, the wireless induction device is in communication connection with the electric hoist and is used for controlling the lowering or lifting of the two electric hoists; the first half wire reel comprises a first half reel and a first flange plate arranged at one end of the first half reel, and the second half wire reel comprises a second half reel and a second flange plate arranged at one end of the second half reel; a first containing slot is arranged at the end of the first half reel away from the flange plate, a second containing slot is arranged at the end of the second half reel away from the flange plate, and the first half reel and the second half reel can be detachably buckled into one, and the first containing slot and the second containing slot are matched to form the containing cavity; traction rope grooves are respectively arranged on the first flange plate and the second flange plate of the wire reel and are used for winding and unwinding the traction rope.

2. A suspended AC charging device according to claim 1, characterized in that The main projection of the containing cavity is a square matched with the shape of the alternating current charging pile; the power line guide slot and the charging line guide slot are respectively arranged at two opposite corners of the square containing slot.

3. A suspended AC charging device according to claim 1 or 2, characterized in that A traction rope fixing hole is arranged in the traction rope groove, so that the end of the traction rope away from the electric hoist passes through the traction rope fixing hole and is fixedly connected with the wire reel.

4. A suspended AC charging device according to claim 3, wherein The electric hoist comprises an electric reel and a traction rope fixedly connected with one end of the electric reel and arranged on the electric reel, and the other end of the traction rope passes through the traction rope fixing hole and is fixed on the corresponding half wire reel. The two electric hoists are respectively arranged corresponding to the flange plate of the first half wire reel and the flange plate of the second half wire reel.

5. A suspended AC charging device according to claim 1 or 2, characterized in that The wireless induction device inducts the arrival or departure of the vehicle by matching the Bluetooth on the vehicle or the Bluetooth on the mobile device of the owner through the Bluetooth protocol.

6. A suspended AC charging device according to claim 1 or 2, characterized in that A plug-in induction device is arranged on the charging gun and is in communication connection with the electric hoist, so as to cooperatively control the lowering or lifting of the two electric hoists with the wireless induction device.

7. A method of automatic retraction and extension of a suspended AC charging device according to any one of claims 1 to 6, characterized in that, The steps of the utility model include: S1, when the radio inductor senses the vehicle, the controller controls two electric hoists to rotate forward to release the traction rope, the reel rotates to release the charging wire and the power wire on both ends of the charging pile at the same time, until the charging gun reaches the first preset height, and the two electric hoists stop rotating; S2, when the radio inductor loses the pairing signal or the charging gun does not detect the insertion signal within the preset time, it is judged that the vehicle leaves, the controller controls the two electric hoists to rotate reversely to wind up the traction rope, the reel rotates to store the charging wire and the power wire on both ends of the charging pile, until the reel rises to the second preset height, and the two electric hoists stop rotating.

8. The method of claim 7, wherein the method further comprises: In step S1, when the charging gun reaches the first preset height, if the user inserts the charging gun into the vehicle energy interface, the charging gun detects the insertion signal, and the charging pile starts to charge the vehicle. If the user does not insert the charging gun into the vehicle energy interface, step S2 is performed.

9. The method of claim 7 or 8, wherein the method further comprises: When the two electric hoists rotate, the traction rope is guided in the traction rope groove, and the reel rotates to release or store the charging wire and the power wire on it.

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