Hoisting type charging device and automatic folding and unfolding method

Abstract

The invention provides a hoisting type charging device and an automatic folding and unfolding method. The charging device comprises a charging gun; the charging pile is suspended on the ceiling or the cross beam, and the charging pile is provided with a charging cable; the wire coil comprises a first half wire coil and a second half wire coil which are oppositely buckled into a whole, and a wire twisting prevention structure is arranged at the butt joint position of the first half wire coil and the second half wire coil; one end of the charging cable is sequentially wound on the first half wire coil, penetrates through the anti-twisting wire structure, then is wound on the second half wire coil and then is connected with the charging gun; the two electric winches are suspended on a ceiling or a cross beam and are used for driving the wire coil to lift through a suspension rope so as to enable the charging cable to be wound and unwound in an anti-torsion manner; the radio sensor is arranged on any electric winch and used for sensing arrival or departure of the corresponding vehicle, and the radio sensor is in communication connection with the electric winches and used for controlling descending or ascending of the two electric winches; automatic lifting can be achieved based on parking of a vehicle, and a charging cable is effectively wound and unwound in an anti-torsion mode through the cable coil structure.

Description

Technical Field

[0001] The present invention relates to the technical field of charging systems, and in particular to a hoisting type charging device and an automatic retracting and releasing method. Background Art

[0002] With the rapid development of electric vehicles, charging electric vehicles in private parking spaces is currently the most cost-effective way to charge electric vehicles. Except for a few car owners who have independent garages, most car owners need to install charging piles in underground garages, but many parking spaces in the middle of underground garages are not surrounded by walls or support columns, and are not suitable for wall-mounted installation. At the same time, the charging cable configured for the charging pile can generally be up to 3 meters long. When not charging, the charging cable needs to be properly organized and stored to avoid damage to the charging cable and interference with parking and pedestrian traffic.

[0003] A Chinese patent application with application number 201610184134.2 discloses a suspended electric vehicle charging device, which is composed of a mounting plate, a liftable suspension assembly connected to the mounting plate, and an electric vehicle charger connected to the suspension assembly. Although the patent discloses that the charging device is set in a suspended manner, the following problems still exist:

[0004] 1. A remote controller is required to manually control the lifting and lowering of the electric winch. If the remote controller is hung at the end of the garage, it cannot be stored well, which may cause the charging cable to be damaged and interfere with parking and pedestrian traffic. If the remote controller is configured at the end of the vehicle, there is a risk of forgetting and losing it.

[0005] 2. The specific electric winch structure is not disclosed. If there is twisting during the lifting or storage of the charging cable, the charging stability and power transmission capacity cannot be guaranteed. In order to prevent the disadvantages caused by twisting, the traditional cable automatic winch usually sets a conductive ring and a brush inside the cable drum, which makes the structure of the cable drum complex and the manufacturing cost high.

[0006] Therefore, there is an urgent need for a hoisting charging device and an automatic retracting method, which can automatically rise and fall based on the parking of the vehicle, and the charging cable can be effectively anti-twisted and retracted. Summary of the invention

[0007] The purpose of the present invention is to provide a hanging charging device and an automatic retracting method, aiming to solve the technical problems that the traditional charging device is cumbersome to operate and the charging cable cannot be retracted to prevent twisting or has a complex structure.

[0008] To achieve the above objectives, in a first aspect, the present invention provides a hanging type charging device, comprising:

[0009] Charging gun, used to connect to the vehicle's energy interface for charging;

[0010] A charging pile is suspended and installed on a ceiling or a beam, and the charging pile is provided with a charging cable;

[0011] A cable drum, comprising a first half cable drum and a second half cable drum which are buckled together, wherein an anti-twisting wire structure is provided at the joint of the first half cable drum and the second half cable drum; one end of the charging cable is sequentially wound around the first half cable drum, passes through the anti-twisting wire structure, and then wound around the second half cable drum to be connected to the charging gun;

[0012] Two electric winches are suspended from the ceiling or beams and are used to drive the cable drum to rise and fall through the suspension rope to prevent the charging cable from twisting and retracting;

[0013] A radio sensor is arranged on any of the electric winches and is used to sense the arrival or departure of the corresponding vehicle. The radio sensor is communicatively connected with the electric winches and is used to control the descent or ascent of the two electric winches.

[0014] As a further improvement of the above solution, the first half wire drum includes a first half drum and a first flange arranged at one end of the first half drum, and the second half wire drum includes a second half drum and a second flange arranged at one end of the second half drum;

[0015] The first half reel is provided with a first anti-twist half wire groove at the end away from the flange plate, and the second half reel is provided with a second anti-twist half wire groove at the end away from the flange plate. The first half reel and the second half reel are detachably buckled and integrated into one body, and the first anti-twist half wire groove and the second anti-twist half wire groove arranged in matching manner constitute the anti-twist wire structure;

[0016] The first flange and the second flange wire drum are respectively provided with suspension rope grooves for storing and releasing the suspension rope.

[0017] As a further improvement of the above solution, the main projections of the first anti-twist half groove and the second anti-twist half groove are S-shaped.

[0018] As a further improvement of the above scheme, a suspension rope fixing hole is provided in the suspension rope groove, so that the end of the suspension rope away from the electric winch can pass through and be fixedly connected to the wire drum.

[0019] As a further improvement of the above scheme, the electric winch includes an electric drum and a suspension rope having one end fixed to the electric drum and wound thereon; the other end of the suspension rope passes through the suspension rope fixing hole and is fixed on the corresponding half-reel;

[0020] The two electric winches are respectively arranged corresponding to the flange of the first half wire drum and the flange of the second half wire drum.

[0021] As a further improvement of the above solution, the charging pile is a three-phase high-power AC pile or a DC charging pile.

[0022] As a further improvement of the above solution, the radio sensor senses the arrival or departure of the vehicle by matching the vehicle's Bluetooth or the Bluetooth on the owner's own mobile device through the Bluetooth protocol.

[0023] As a further improvement of the above solution, a plug-in sensor is provided on the charging gun, and the plug-in sensor is communicatively connected with the electric winch, and is used to coordinate with the radio sensor to control the descent or ascent of the two electric winches.

[0024] In a second aspect, the present invention further provides a method for automatically retracting and releasing a hanging type charging device as provided in the first aspect, the steps comprising:

[0025] S1. When the radio sensor senses a vehicle, the controller controls the two electric winches to rotate forward to release the suspension rope. As the suspension rope is released, the cable drum rotates while releasing the charging cable stored thereon until the charging gun on it reaches a first preset height, and the two electric winches stop rotating.

[0026] S2. When the wireless sensor senses that the pairing signal is lost, or the charging gun does not detect the insertion signal within the preset time, it is judged that the vehicle has left, and the controller controls the two electric winches to rotate in opposite directions to retract the suspension rope. The cable drum is retracted along with the suspension rope, and the cable drum rotates while storing the charging cable on it until the cable drum rises to a second preset height, and the two electric winches stop rotating.

[0027] As a further improvement of the above solution, when the two electric winches rotate, when releasing or storing the suspension rope, the suspension rope is guided by the suspension rope groove, and the cable drum rotates to release or store the charging cable thereon.

[0028] Since the present invention adopts the above technical solution, the beneficial effects of this application are:

[0029] The present invention provides a hanging charging device, comprising a charging pile and an electric winch, both of which can be hung and set on a ceiling or a beam, and also a cable drum, the charging pile extends a charging cable, the charging cable is anti-twistingly set on the cable drum, and the electric winch drives the cable drum to rise and fall through a suspension rope to retract and release the charging cable in an anti-twisting manner; the charging pile and the electric winch can be hung and set on the ceiling or the beam, which effectively solves the installation requirements of the charging device of the electric vehicle owner who has no walls available around, and the equipment is small and does not occupy ground space;

[0030] In addition, the present invention is also provided with a radio sensor for sensing the arrival or departure of a vehicle, and the radio sensor is communicatively connected with the electric winch. When the radio sensor senses the arrival of a vehicle, the controller that receives the signal controls the electric winch to rotate forward, and drives the cable drum to rotate while releasing the charging cable thereon, until the charging gun is lowered to a preset height for convenient charging of the vehicle, the electric winch stops rotating, and the owner charges his vehicle through the charging gun. Correspondingly, when the radio sensor cannot sense a signal matching the vehicle, or the charging gun does not detect an insertion signal within a preset time, it is judged that the vehicle has left, and the charging gun is connected again. The electric winch is started to rotate in the reverse direction, and the suspension rope is gradually stored on its electric drum, and at the same time, the cable drum is driven to store the charging cable thereon, until the cable drum is raised to a second preset height, and the electric winch stops rotating; the reeling and unreeling of the entire charging device can be performed automatically, and the user only needs to plug and unplug the charging gun to the vehicle energy interface, which reduces the charging operation steps and can encourage users to develop a good habit of charging at any time when parking, so that electric vehicles can be connected to the power grid for a longer time, and the excess energy storage capacity of electric vehicles can be fully utilized for the exchange of electric energy, which can alleviate the short-term load pressure of power grid equipment and improve the power grid's ability to absorb clean energy;

[0031] An anti-twisting wire structure is arranged at the joint of the two half-reels of the wire reel, and one end of the charging cable is successively wound around the first half-reel, passes through the anti-twisting wire structure, and then is wound around the second half-reel to be connected to the charging gun; such an arrangement prevents the charging cable from twisting during the release or storage process, thereby ensuring the stability of charging and a higher power transmission capacity; compared with the traditional cable automatic winch, in order to prevent the disadvantages caused by twisting, conductive rings and brushes are usually arranged in the wire reel to ensure that the power transmission capacity will not be reduced even if the cable is twisted, but such an arrangement makes the wire reel structure complex, the manufacturing cost high, and it is prone to failure and maintenance troubles; in the present invention, an anti-twisting wire structure is arranged at the joint of the two half-reels, and the disadvantages caused by cable twisting can be avoided without the need to arrange parts such as conductive rings and brushes, and the structure is simple, the manufacturing cost is low, and it is not prone to failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0033] Figure 1 A three-dimensional schematic diagram of a hanging charging device disclosed in the present invention Figure 1 ;

[0034] Figure 2 A three-dimensional schematic diagram of a hanging charging device disclosed in the present invention Figure 2 ;

[0035] Figure 3 It is a front view schematic diagram of a hanging type charging device disclosed in the present invention;

[0036] Figure 4 It is a cross-sectional schematic diagram of the wire drum disclosed in the present invention;

[0037] Figure 5 It is a three-dimensional schematic diagram of the first half of the wire drum disclosed in the present invention;

[0038] Figure 6 It is a three-dimensional schematic diagram of the first half wire reel (a charging cable is arranged in the first anti-twisting half wire groove) disclosed in the present invention;

[0039] Figure 7 It is a front view schematic diagram of the second half line disk disclosed in the present invention;

[0040] Figure 8 for Figure 7 AA cross-sectional view of .

[0041] Reference numerals:

[0042] 1. Charging gun; 2. Charging pile; 3. Charging cable; 4. Wire reel; 41. First half wire reel; 411. First half drum; 412. First flange; 413. First anti-twist half wire groove; 42. Second half wire reel; 421. Second half drum; 422. Second flange; 423. Second anti-twist half wire groove; 43. Anti-twist wire structure; 44. Suspension rope wire groove; 45. Suspension rope fixing hole; 5. Electric winch; 6. Suspension rope.

[0043] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with the implementation methods and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0044] The following will be combined with the 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0045] 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 components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0046] In addition, in the present invention, the descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0047] Furthermore, 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 they can be implemented by ordinary technicians in the field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0048] Example 1

[0049] See also Figure 1-Figure 3 The present invention provides a hanging type charging device, comprising:

[0050] The charging gun 1 is used to connect with the energy interface of the vehicle for charging. The charging gun 1 is provided with a plug-in sensor for sensing the plug-in information of the energy interface of the vehicle; the plug-in sensor is connected to the electric winch 5 for communication, and is used to cooperate with the radio sensor to control the descent or ascent of the two electric winches 5;

[0051] The charging pile 2 is suspended and installed on the ceiling or beam, and a charging cable 3 extends outward from the charging pile 2; in this embodiment, the charging pile 2 is a three-phase high-power AC pile or a DC charging pile 2;

[0052] Reel 4, see Figure 4-Figure 8 , comprising a first half wire drum 414 and a second half wire drum 42 that are buckled together, and an anti-twisting wire structure 43 is provided at the joint of the first half wire drum 414 and the second half wire drum 42; one end of the charging cable 3 is sequentially wound around the first half wire drum 414, passes through the anti-twisting wire structure 43, and then wound around the second half wire drum 42 to be connected to the charging gun 1;

[0053] Two electric winches 5 are suspended from the ceiling or beams and are used to drive the cable drum 4 to rise and fall through the suspension rope 6 so as to prevent the charging cable 3 from twisting and being retracted;

[0054] A radio sensor, arranged on any of the electric winches 5, for sensing the arrival or departure of a corresponding vehicle, the radio sensor being communicatively connected with the electric winches 5, for controlling the descent or ascent of the two electric winches 5;

[0055] In the present invention, the charging pile 2 and the electric winch 5 are hoisted and set on the ceiling or the beam, the charging pile 2 extends a charging cable 3, the charging cable 3 is anti-twistingly set on the wire drum 4, and the electric winch 5 drives the wire drum 4 to rise and fall through the suspension rope 6 to make the charging cable 3 anti-twisting and retractable; the charging pile 2 and the electric winch 5 can be hoisted and set on the ceiling or the beam, which effectively solves the installation requirements of the charging device of the electric vehicle owner who has no walls available around, and the equipment is small and does not occupy the ground space; and the charging cable 3 can be automatically retracted and released, thereby avoiding damage to the charging cable and interference with parking and pedestrian passage;

[0056] In addition, the present invention is also provided with a radio sensor for sensing the arrival or departure of a vehicle, and the radio sensor is communicatively connected with the electric winch 5. When the radio sensor senses the arrival of a vehicle, the controller that receives the signal controls the electric winch 5 to rotate forward, and drives the cable drum 4 to rotate while releasing the charging cable 3 thereon, until the charging gun 1 is lowered to a preset height for convenient charging of the vehicle, the electric winch 5 stops rotating, and the owner charges his vehicle through the charging gun 1; correspondingly, when the radio sensor cannot sense a signal matching the vehicle, or the charging gun 1 does not detect an insertion signal within a preset time, it is judged that the vehicle has left, and the charging gun 1 is connected again. The electric winch 5 is started to rotate in the reverse direction, and the suspension rope 6 is gradually stored on its electric drum, while driving the cable drum 4 to store the charging cable 3 thereon, until the cable drum 4 is raised to a second preset height, and the electric winch 5 stops rotating; the reeling and unreeling of the entire charging device can be performed automatically, and the user only needs to plug and unplug the charging gun 1 to the vehicle energy interface, which reduces the charging operation steps and can encourage users to develop a good habit of charging when parking, so that the electric vehicle can be connected to the power grid for a longer time, and the excess energy storage capacity of the electric vehicle can be fully utilized for the exchange of electric energy, which can alleviate the short-term load pressure of the power grid equipment and improve the power grid's ability to absorb clean energy;

[0057] An anti-twisting wire structure 43 is provided at the joint of the two half-reels 4 of the wire reel 4, and one end of the charging cable 3 is successively wound around the first half-reel 414 and passes through the anti-twisting wire structure 43 and then wound around the second half-reel 42 to be connected with the charging gun 1; such a configuration prevents the charging cable 3 from twisting during the release or storage process, thereby ensuring the charging stability and higher power transmission capacity; compared with the traditional cable automatic winch, in order to prevent the disadvantages caused by twisting, conductive rings and brushes are usually provided in the wire reel 4 to ensure that even if the cable is twisted, the power transmission capacity will not be reduced, but such a configuration makes the wire reel 4 complex in structure, high in manufacturing cost, prone to failure and troublesome in maintenance; in the present invention, an anti-twisting wire structure 43 is provided at the joint of the two half-reels 4, and the disadvantages caused by cable twisting can be avoided without providing parts such as conductive rings and brushes, and the structure is simple, the manufacturing cost is low, and it is not easy to fail.

[0058] As a preferred embodiment, see Figure 4-Figure 8 The first half wire drum 414 includes a first half drum 411 and a first flange 412 disposed at one end of the first half drum 411, and the second half wire drum 42 includes a second half drum 421 and a second flange 422 disposed at one end of the second half drum 421;

[0059] The first half reel 411 is provided with a first anti-twist half groove 413 at the end away from the flange, and the second half reel 421 is provided with a second anti-twist half groove 423 at the end away from the flange. The first half reel 411 and the second half reel 421 are detachably buckled and integrated into one body, and the first anti-twist half groove 413 and the second anti-twist half groove 423 are matched to form the anti-twist wire structure 43; specifically, in this embodiment, the first anti-twist half groove 413 and the second anti-twist half groove 423 are The main projection is S-shaped, and the anti-twisting wire structure 43 is an S-shaped anti-twisting wire groove; during installation, the charging cable 3 is first wound on the first half drum 411, and then the charging cable 3 is clamped in the first anti-twisting half wire groove 413, and then the second anti-twisting half wire groove 423 of the second half wire drum 42 is matched and buckled on the first anti-twisting half wire groove 413, and finally the charging cable 3 is wound on the second half drum 421, and the end extending from the second half drum 421 is connected to the charging gun 1;

[0060] After the first half reel 411 and the second half reel 421 are buckled together, the two can be fastened together by screws to form a whole, or the first half reel 411 and the second half reel 421 are provided with mutually matching buckle structures, and the two half reels are detachably connected by the buckle structure;

[0061] See also Figure 4 The first flange 412 and the second flange 422 are respectively provided with a suspension rope groove 44 on the wire reel 4 for storing and releasing the suspension rope 6; and under the action of gravity of the wire reel 4, the charging cable 3 and the charging gun 1, the suspension rope 6 is in a tensioned state, which enables the wire reel 4 to rotate under the guidance of the suspension rope groove 44, so that the charging cable 3 on the wire reel 4 can be released or stored.

[0062] As a preferred embodiment, see Figure 7 The suspension rope groove 44 is provided with a suspension rope 6 fixing hole 45, so that the end of the suspension rope 6 away from the electric winch 5 can pass through and be fixedly connected to the wire drum 4; after the suspension rope groove 44 passes through the suspension rope 6 fixing hole 45, it can be connected to the wire drum 4 by tying a knot or setting a blocking member;

[0063] It should be noted that see Figure 4The first half wire disc 414 and the first half wire disc 414 are both shell structures, and grooves are provided on their corresponding flange ends.

[0064] As a preferred embodiment, the electric winch 5 includes an electric drum and a suspension rope 6 fixed to and wound around the electric drum at one end; the other end of the suspension rope 6 passes through the suspension rope fixing hole and is fixed on the corresponding half-reel 4;

[0065] Two electric winches 5 are suspended side by side on the ceiling or beam, and are respectively arranged corresponding to the flange of the first half wire drum 414 and the flange of the second half wire drum 42;

[0066] In the present invention, two conventional electric winches 5 drive a wire drum 4 with a simple structure to anti-twist the charging cable 3. Compared with a conventional automatic telescopic hose reel (such as a Chinese patent with patent number ZL201610255279 7 which discloses a conductive slip ring and a cable retracting device using the conductive slip ring, the patent uses a conductive slip ring built into a reel in the cable retracting device. When the cable is wound, the conductive slip ring and the reel rotate in the same direction and at the same speed, which can effectively eliminate the cable damage caused by long-term self-twist during winding, thereby extending the service life of the cable), there is no need to set a conductive ring and a brush, so that the hoisting charging device provided by the present invention has a simple structure, high reliability and low cost.

[0067] As a preferred embodiment, the radio sensor senses the arrival or departure of the vehicle by matching the vehicle's Bluetooth or the Bluetooth on the owner's own mobile device through the Bluetooth protocol; preferably, the owner's own mobile device is a mobile phone or tablet, etc.; specifically, if the radio sensor senses a pairing signal, the controller sends a pay-out signal to the electric winch 5, and the charging cable 3 carrying the charging gun is lowered for user use; if the radio sensor senses that the pairing signal is lost or the charging gun 1 does not detect an insertion signal within a preset time, the controller sends a reel-in signal to the electric winch 5, and the charging cable 3 carrying the charging gun rises.

[0068] It should be noted that a plug-in sensor contact is provided in the plug of the charging gun 1 as a connection detection signal for detecting whether the connection status between the charging pile 2 and the vehicle energy interface is normal.

[0069] Example 2

[0070] The present invention also provides a method for automatically retracting and releasing a hanging type charging device as provided in Example 1, the steps of which include:

[0071] S1. When the radio sensor senses the vehicle pairing signal, the controller controls the two electric winches 5 to rotate forward to release the suspension rope 6. As the suspension rope 6 is released, the cable drum 4 rotates while releasing the charging cable 3 stored thereon until the charging gun 1 thereon reaches the first preset height, and the two electric winches 5 stop rotating; at this time, the user can choose to insert the charging gun 1 into the vehicle energy interface for charging or not to charge according to their needs; if the user chooses to insert the charging gun 1 into the vehicle energy interface for charging, the controller receives the charging gun insertion signal and charges the paired vehicle;

[0072] If the user chooses not to charge, or after charging is completed, the user unplugs the charging gun 1, that is, the charging gun 1 cannot detect the insertion signal within the preset time, when the owner leaves or the vehicle is turned off, causing the radio sensor to sense the loss of the pairing signal, step S2 is executed;

[0073] It should be noted that the charging gun 1 that meets the national design standard is equipped with a locking device. When the charging gun 1 is in the plugged-in state, the paired vehicle locks it and the charging gun 1 cannot be unplugged. The charging gun 1 cannot be unplugged without controlling the paired vehicle, thereby preventing non-owners from stealing it.

[0074] Specifically, the first preset height can be flexibly set according to the height of the vehicle energy charging port when used for the first time;

[0075] S2. When the wireless sensor senses that the pairing signal is lost, or the charging gun 1 does not detect the insertion signal within the preset time; the controller determines that the vehicle has left, and the controller controls the two electric winches 5 to rotate in the opposite direction to retract the suspension rope 6. As the suspension rope 6 is retracted, the cable drum 4 rotates while storing the charging cable 3 thereon, until the cable drum 4 rises to a second preset height, and the two electric winches 5 stop rotating;

[0076] The entire charging device can automatically retract and release the line. The user only needs to plug and unplug the charging gun 1 to the vehicle energy interface, which reduces the charging operation steps and can encourage users to develop a good habit of charging when parking. This allows electric vehicles to be connected to the power grid for a longer time, fully utilizes the excess energy storage capacity of electric vehicles to exchange electricity, alleviates the short-term load pressure on power grid equipment, and improves the power grid's ability to absorb clean energy.

[0077] As a preferred embodiment, when the two electric winches 5 rotate, when releasing or storing the suspension rope 6, the suspension rope 6 is guided by the suspension rope groove 44, and the cable drum 4 rotates to release or store the charging cable 3 thereon.

[0078] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A hanging type charging device, characterized in that: include: Charging gun, used to connect to the vehicle's energy interface and charge it; A charging pile is suspended and installed on a ceiling or a beam, and the charging pile is provided with a charging cable; A cable drum, comprising a first half cable drum and a second half cable drum which are buckled together, wherein an anti-twisting wire structure is provided at the joint of the first half cable drum and the second half cable drum; one end of the charging cable is sequentially wound around the first half cable drum, passes through the anti-twisting wire structure, and then wound around the second half cable drum to be connected to the charging gun; An electric winch is suspended from a ceiling or a beam and is used to drive the cable drum to rise and fall through a suspension rope to prevent the charging cable from twisting and retracting; A radio sensor is arranged on any of the electric winches and is used to sense the arrival or departure of the corresponding vehicle. The radio sensor is communicatively connected with the electric winches and is used to control the descent or ascent of the two electric winches.

2. A hanging type charging device according to claim 1, characterized in that: The first half wire drum comprises a first half drum and a first flange arranged at one end of the first half drum, and the second half wire drum comprises a second half drum and a second flange arranged at one end of the second half drum; The first half reel is provided with a first anti-twist half wire groove at the end away from the flange plate, and the second half reel is provided with a second anti-twist half wire groove at the end away from the flange plate. The first half reel and the second half reel are detachably buckled and integrated into one body, and the first anti-twist half wire groove and the second anti-twist half wire groove arranged in matching manner constitute the anti-twist wire structure; The first flange and the second flange wire drum are respectively provided with suspension rope grooves for storing and releasing the suspension rope.

3. A hanging type charging device according to claim 2, characterized in that: The main projections of the first anti-twist half groove and the second anti-twist half groove are S-shaped.

4. A hanging type charging device according to claim 2 or 3, characterized in that: A suspension rope fixing hole is provided in the suspension rope groove, so that the end of the suspension rope away from the electric winch can pass through and be fixedly connected to the wire drum.

5. A hanging type charging device according to claim 4, characterized in that: The electric winch comprises an electric drum and a suspension rope having one end fixed to the electric drum and wound thereon; the other end of the suspension rope passes through the suspension rope fixing hole and is fixed on the corresponding half-reel; The two electric winches are respectively arranged corresponding to the flange of the first half wire drum and the flange of the second half wire drum.

6. A hanging type charging device according to any one of claims 1 to 3, characterized in that: The charging pile is a three-phase high-power AC charging pile or a DC charging pile.

7. A hanging type charging device according to any one of claims 1 to 3, characterized in that: The wireless sensor senses the arrival or departure of the vehicle by matching the vehicle's Bluetooth or the Bluetooth on the owner's own mobile device through the Bluetooth protocol.

8. A hanging type charging device according to any one of claims 1 to 3, characterized in that: The charging gun is provided with a plug-in sensor, and the plug-in sensor is communicatively connected with the electric winch.

9. An automatic retracting and releasing method for a hanging type charging device as claimed in any one of claims 1 to 8, characterized in that: The steps include: S1. When the radio sensor senses a vehicle, the controller controls the two electric winches to rotate forward to release the suspension rope. As the suspension rope is released, the cable drum rotates while releasing the charging cable stored thereon until the charging gun on it reaches a first preset height, and the two electric winches stop rotating. S2. When the wireless sensor senses that the pairing signal is lost, or the charging gun does not detect the insertion signal within the preset time, it is judged that the vehicle has left, and the controller controls the two electric winches to rotate in opposite directions to retract the suspension rope. The cable drum is retracted along with the suspension rope, and the cable drum rotates while storing the charging cable on it until the cable drum rises to a second preset height, and the two electric winches stop rotating.

10. The automatic retracting and releasing method of a hanging type charging device according to claim 9, characterized in that: When the two electric winches rotate, when releasing or storing the suspension rope, the suspension rope is guided by the suspension rope groove, and the cable drum rotates to release or store the charging cable thereon.

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