Charging connection device for electric vehicle

Abstract

The invention relates to the technical field of electric automobile charging, in particular to an electric automobile charging connecting device which comprises a charging pile body used for supplying electric quantity to an automobile, the charging pile body is provided with a socket and a plug connected through a cable, and the plug is inserted into the socket. The charging pile comprises a charging pile body, a protection mechanism for withdrawing a plug in a lifting mode is installed on the charging pile body, a monitoring mechanism used for sensing the extending length of a cable is further arranged, the protection mechanism comprises a second connecting rod movably installed on the charging pile body, a positioning ring used for fixing the cable is movably connected to the second connecting rod, and a transmission roller is installed on the second connecting rod. The charging pile body is provided with a connecting roller used for pulling a plug on the cable to move, and a connecting rope is fixedly connected between the connecting roller and the positioning ring. According to the invention, the plug can be prevented from being forgotten on the ground or randomly moved by others, the occurrence probability of accidents is reduced, and the safety of a user in the use process is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of electric vehicle charging, and in particular to an electric vehicle charging connection device. Background Art

[0002] As global awareness of sustainable development and environmental protection increases, electric vehicles, as a clean energy means of transportation, are gradually favored by more and more consumers. The popularity of electric vehicles has brought about an urgent need for charging infrastructure. Traditional electric vehicle charging connection devices usually include plugs, cables, and charging piles. After charging, users often place the plugs on the ground at will, which not only easily leads to contamination and damage of the plugs, but also makes the plugs prone to damage from trampling, collisions or other objects when placed on the ground, increasing the wear of the plugs and cables, shortening their service life, and may also cause safety hazards. In addition, cable management is also an important issue. Cables that are too long may cause entanglement and knotting, and even affect the safety and convenience of charging. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides an electric vehicle charging connection device, which has the advantage of automatically retracting a plug placed on the ground, thereby solving the problem that the plug is easily damaged when randomly placed on the ground.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] A charging connection device for an electric vehicle comprises a charging pile body for providing electric power replenishment for the vehicle, the charging pile body being provided with a socket and a plug connected via a cable, the plug being inserted into the socket, the charging pile body being provided with a protective mechanism for retrieving the plug by lifting, and a monitoring mechanism for sensing the extension length of the cable, the protective mechanism comprising two connecting rods movably mounted on the charging pile body, a positioning ring for fixing the cable being movably connected to the two connecting rods, a transmission roller being mounted on the two connecting rods, a connecting roller for pulling the plug on the cable to move being provided on the charging pile body, and a connecting rope being fixedly connected between the connecting roller and the positioning ring.

[0006] Preferably, a motor is fixedly mounted on the charging pile body, a connecting roller is fixedly connected to the output end of the motor, a motor is fixedly mounted on connecting rod 2, a transmission roller is fixedly connected to the output end of the motor, a transmission rope is fixedly connected between the transmission roller and the positioning ring, the transmission rope is slidably connected to the connecting rod 2 through a slide groove, and the positioning ring is located at the front of the connecting rod 2.

[0007] Preferably, micro electric push rods are fixedly mounted on both sides of the positioning ring, and the opposite end surfaces of the two micro electric push rods are fixedly connected with clamping blocks for fixing cables.

[0008] Preferably, multi-stage electric telescopic rods are fixedly installed on both sides of the charging pile body, and the free ends of the multi-stage electric telescopic rods are fixedly connected with load-bearing blocks, and the load-bearing blocks are connected to the connecting rod.

[0009] Preferably, a connecting rod 1 is fixedly connected to the charging pile body, and the cable is located between the connecting rod 1 and the connecting rod 2.

[0010] Preferably, the monitoring mechanism includes a handle fixed to the plug, a cavity is provided in the handle, the cable passes through the handle and is electrically connected to the plug, a transmission plate fixed to the cable is slidably connected in the cavity, the portion where the cable is located between the transmission plate and the plug is a bending portion, a spring is fixed to the transmission plate and the bottom of the cavity, an electromagnetic rod is fixed to the bottom of the transmission plate, and a magnetic ring magnetically connected to the electromagnetic rod is fixed to the bottom wall of the cavity.

[0011] Preferably, a sensor is fixedly installed in the cavity, and the sensor and the magnetic coil are electrically connected.

[0012] Preferably, a display screen is installed on the charging pile body, and a sound area is also provided for reminding users of standard operating procedures.

[0013] Preferably, the charging pile body is provided with a scanning area and a camera for scanning code to pay.

[0014] Preferably, a shell is fixedly connected to the charging pile body, and a mechanical claw for fixing the plug is also installed on the charging pile body.

[0015] By means of the above technical solution, the present invention provides an electric vehicle charging connection device, which has at least the following beneficial effects:

[0016] 1. In the electric vehicle charging connection device, the second connecting rod moves forward, the positioning ring moves with the second connecting rod, and then the transmission roller releases the positioning ring, and the positioning ring slides along the cable to a position close to the plug, and then the positioning ring fixes the cable at the current position, and then the connecting roller rotates to pull the positioning ring through the connecting rope to drive the plug on the cable to rise, avoiding being stepped on or collided with other objects. The protective mechanism can safely retract the plug, reducing the risk of plug damage.

[0017] 2. The electric vehicle charging connection device realizes adaptive management of the cable length through the coordinated action of the connecting rod 2 and the transmission roller, and can automatically adjust the extended length of the cable according to the position of the plug, avoiding the problem of dragging on the ground or tangling caused by the cable being too long.

[0018] 3. The electric vehicle charging connection device can fix the cable near the plug, thereby preventing the plug from dragging on the ground to the greatest extent and reducing the swing of the plug when it moves, thereby further protecting the plug.

[0019] 4. The protective device of the electric vehicle charging connection device can prevent the plug from being forgotten on the ground or moved at will by others, reducing the probability of accidents and ensuring the safety of users during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention in the front view direction;

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention in the rearward direction;

[0023] Figure 3 This is a schematic diagram of the external structure of the charging pile body of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the protection mechanism of the present invention;

[0025] Figure 5 It is a schematic diagram of the external connection structure of the second connecting rod of the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the monitoring mechanism of the present invention.

[0027] Reference numerals:

[0028] 100, charging pile body; 101, socket; 102, plug; 103, display screen; 104, code scanning area; 105, sound output area; 106, camera;

[0029] 200, protection mechanism; 201, housing; 202, connecting rod 1; 203, connecting rod 2; 204, positioning ring; 205, mechanical claw; 206, transmission roller; 207, connecting roller; 208, multi-stage electric telescopic rod; 209, load-bearing block; 210, transmission rope; 211, motor; 212, motor; 213, connecting rope; 214, micro electric push rod; 215, clamping block;

[0030] 300, monitoring mechanism; 301, cavity; 302, bending portion; 303, transmission plate; 304, spring; 305, magnetic coil; 306, electromagnetic rod; 307, sensor. DETAILED DESCRIPTION

[0031] 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.

[0032] With the rapid growth of the electric vehicle market, the construction and optimization of charging infrastructure has become an important factor in promoting the popularization of electric vehicles. As the core component of the electric vehicle charging system, the design and function of the charging connection device directly affect the user's charging experience and charging efficiency.

[0033] Traditional electric vehicle charging connection devices usually consist of a plug, a cable and a charging interface. After charging, users often place the plug randomly, causing damage, pollution and safety hazards to the plug and cable. In addition, the existing charging connection devices lack intelligent management and monitoring functions during use and cannot effectively respond to various needs of users during the charging process.

[0034] Embodiment 1:

[0035] Since the plug 102 may be stepped on or hit by other objects when placed on the ground, in order to move the plug 102 from the ground to a safe position, Figure 1-Figure 4 As shown, the present invention provides an electric vehicle charging connection device, which is configured to provide a charging pile body 100 for replenishing the power of the vehicle. The charging pile body 100 is provided with a socket 101 and a plug 102 connected by a cable. The plug 102 is inserted into the socket 101. A protective mechanism 200 for retrieving the plug 102 by lifting is installed on the charging pile body 100. The protective mechanism can safely retract the plug 102, reducing the risk of damage to the plug 102. A monitoring mechanism 300 for sensing the extension length of the cable is also provided, which can detect the extension length of the cable in real time, adjust the tension of the cable, and prevent the cable from being pulled excessively, thereby protecting the connection between the plug 102 and the cable and reducing the risk of damage.

[0036] Since the plug 102 and the cable may become obstacles for tripping on the ground, especially in public places, the safety risk of users and pedestrians is increased. In order to solve the above problems, the protective mechanism 200 includes a connecting rod 203 movably mounted on the charging pile body 100, and a locating ring 204 for fixing the cable is movably connected to the connecting rod 203. A transmission roller 206 for positioning the locating ring 204 is installed on the connecting rod 203. A connecting roller 207 for pulling the plug 102 on the cable to move is provided on the charging pile body 100, and a connecting rope 213 is fixedly connected between the connecting roller 207 and the locating ring 204. When the user does not insert the plug 102 into the original place and puts it on the ground, the connecting rod 203 Move forward, the positioning ring 204 moves with the connecting rod 203, and then the transmission roller 206 releases the positioning ring 204, and the positioning ring 204 slides along the cable to a position close to the plug 102, and then the positioning ring 204 fixes the cable at the current position, and then the connecting roller 207 rotates to pull the positioning ring 204 through the connecting rope 213 to drive the plug 102 on the cable to rise. Since the connecting rod 203 is located above the plug 102, the plug 102 can be pulled upward to prevent the plug 102 from dragging on the ground. Then the connecting rod 203 is reset. When the connecting rod 203 moves back, the motor 211 also winds the connecting rope 213 to prevent the plug 102 from falling.

[0037] According to the embodiment, the protection device 200 can prevent the plug 102 from being forgotten on the ground or being moved arbitrarily by others, thereby reducing the probability of accidents and ensuring the safety of users during use.

[0038] Embodiment 2:

[0039] Since the plug 102 is directly retracted by pulling, the plug 102 still contacts the ground during the retraction process, and is easily contaminated with dust, dirt and moisture, which affects the cleanliness and contact performance of the plug and reduces the charging efficiency. In order to solve the above problems, combined with Figure 3-Figure 5 As shown, on the basis of Example 1, a motor 211 is fixedly installed on the charging pile body 100, and a connecting roller 207 is fixedly connected to the output end of the motor 211, and a motor 212 is fixedly installed on the connecting rod 203, and a transmission roller 206 is fixedly connected to the output end of the motor 212, and a transmission rope 210 is fixedly connected between the transmission roller 206 and the positioning ring 204, and the transmission rope 210 is slidingly connected to the connecting rod 203 through a slide groove, and the positioning ring 204 is located at the front of the connecting rod 203. The setting of the motor 211 can drive the connecting roller 207 to rotate, and the setting of the motor 212 can drive the transmission roller 206 to rotate, and the position of the positioning ring 204 can be controlled by the transmission rope 210.

[0040] Since the cable is elastic and the plug 102 is large, if the cable is pulled away from the plug 102, the plug 102 will swing when it is retracted. In order to solve the above problem, micro-electric push rods 214 are fixedly installed on both sides of the positioning ring 204, and the opposite end faces of the two micro-electric push rods 214 are fixedly connected with blocks 215 for fixing the cables. The micro-electric push rods 214 are started to extend their free ends, and then the cables can be fixed by the blocks 215. Since the cable is fixed at a position close to the plug 102, the dragging movement of the plug 102 can be avoided to the greatest extent, and the swinging of the plug 102 when moving can also be reduced, thereby further protecting the plug 102.

[0041] Furthermore, multi-stage electric telescopic rods 208 are fixedly installed on both sides of the charging pile body 100, and the free ends of the multi-stage electric telescopic rods 208 are fixedly connected with load-bearing blocks 209, and the load-bearing blocks 209 are connected to the connecting rod 1 202.

[0042] A connecting rod 1 202 is fixedly connected to the charging pile body 100, and the cable is located between the connecting rod 1 202 and the connecting rod 203, ensuring that the cable is within the range between the connecting rod 1 202 and the connecting rod 203 to prevent the cable from moving to other positions.

[0043] According to the embodiment, the plug 102 placed on the ground may be stepped on or hit by other objects, and the protection mechanism 200 can safely retract the plug 102, reducing the risk of damage to the plug 102.

[0044] Embodiment three:

[0045] Due to the different charging port locations of different types of vehicles, the cable stretch length is also different. Excessive pulling of the cable may cause the plug to detach or be damaged. In order to solve the above problem, combined with Figure 1 and Figure 6As shown, on the basis of the second embodiment, the monitoring mechanism 300 includes a handle fixed to the plug 102, a cavity 301 is provided in the handle, the cable passes through the handle and is electrically connected to the plug 102, a transmission plate 303 fixed to the cable is slidably connected in the cavity 301, the portion where the cable is located between the transmission plate 303 and the plug 102 is a bending portion 302, the bending portion 302 is provided to leave a margin for the cable to avoid damage to the plug 102 during charging due to excessive pulling, a spring 304 is fixed to the transmission plate 303 and the bottom of the cavity 301, an electromagnetic rod 306 is fixed to the bottom of the transmission plate 303, and a magnetic ring 305 magnetically connected to the electromagnetic rod 306 is fixed to the bottom wall of the cavity 301. After the user removes the plug 102 and inserts it into the charging port of the car, this part of the cable between the car and the charging pile body 100 is easy to drag on the ground due to its long length, and then the motor 212 reverses to send the transmission rope 210 out, while positioning The ring 204 fixes the cable at the current position, and then the motor 211 starts to drive the connecting roller 207 to rotate, and the positioning ring 204 is pulled to move by the connecting rope 213, and then the overlong cable can be moved backward for storage, so as to avoid the phenomenon that the cable is too long and drags on the ground, and the cable can be protected. When the cable is pulled, after being pulled to a certain extent, the transmission plate 303 will be driven to move, and the electromagnetic rod 306 moves with the transmission plate 303. The magnetic ring 305 senses the moving position of the electromagnetic rod 306, indicating that the cable can no longer be pulled, so as to avoid excessive pulling to pull out the plug 102 or affect it, and the cable can be retracted to an appropriate length and stopped from being pulled. The setting of the spring 304 can reset the electromagnetic rod 306 when charging is stopped, and when the plug 102 is forgotten to be plugged back into the socket 101 and placed on the ground, the sensor 307 does not send a signal to avoid conflicts in operation.

[0046] Excessive pulling of the cable will cause the wire inside the cable to be stretched, which may cause the wire to break or the insulation layer to be damaged, increasing the risk of short circuit and electrical failure. A sensor 307 is fixed in the cavity 301. The sensor 307 is electrically connected to the magnetic ring 305. The sensor 307 transmits the position of the electromagnetic rod 306 to the charging pile body 100, and then controls the motor 211, the micro electric push rod 214 and the motor 212 to achieve intelligent control.

[0047] According to the embodiment, through the coordinated action of the connecting rod 203 and the transmission roller 206, adaptive management of the cable length is achieved, and the extended length of the cable can be automatically adjusted according to the position of the plug 102, avoiding the problem of dragging on the ground or tangling caused by the cable being too long.

[0048] Embodiment 4:

[0049] Combination Figure 1As shown, on the basis of the second embodiment, a display screen 103 is installed on the charging pile body 100, and a sound area 105 is also provided for reminding the user of the standard operation process.

[0050] Specifically, the charging pile body 100 is provided with a scanning area 104 for scanning code to pay and a camera 106. The setting of the camera 106 can remind the user when the user places the plug 102 on the ground, and retract the plug 102 in time afterwards.

[0051] Furthermore, a shell 201 is fixedly connected to the charging pile body 100 , and a mechanical claw 205 for fixing the plug 102 is also installed on the charging pile body 100 .

[0052] It can be seen from the above embodiment that: first, the user scans the code to pay in the code scanning area 104, and then removes the plug 102 and plugs it into the charging port of the car for connection. After charging is completed, the plug 102 is removed and plugged back into the socket 101.

[0053] It should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric vehicle charging connection device, comprising a charging pile body (100) for providing electric power replenishment for an electric vehicle, wherein the charging pile body (100) is provided with a socket (101) and a plug (102) connected by a cable, wherein the plug (102) is inserted into the socket (101), and wherein: The charging pile body (100) is provided with a protection mechanism (200) for retrieving the plug (102) by lifting, and a monitoring mechanism (300) for sensing the extension length of the cable; The protection mechanism (200) comprises a second connecting rod (203) movably mounted on the charging pile body (100); a cable positioning ring (204) is movably connected to the second connecting rod (203); a driving roller (206) is mounted on the second connecting rod (203); a connecting roller (207) is provided on the charging pile body (100) for pulling the plug (102) on the cable to move; and a connecting rope (213) is fixedly connected between the connecting roller (207) and the positioning ring (204).

2. The electric vehicle charging connection device according to claim 1, characterized in that: The charging pile body (100) is fixedly provided with a motor (211), the output end of the motor (211) is fixedly connected with a connecting roller (207), the connecting rod (203) is fixedly provided with a motor (212), the output end of the motor (212) is fixedly connected with a transmission roller (206), a transmission rope (210) is fixedly connected between the transmission roller (206) and the positioning ring (204), the transmission rope (210) is slidably connected with the connecting rod (203) through a sliding groove, and the positioning ring (204) is located at the front of the connecting rod (203).

3. The electric vehicle charging connection device according to claim 1, characterized in that: Micro electric push rods (214) are fixedly mounted on both sides of the positioning ring (204), and the opposite end surfaces of the two micro electric push rods (214) are fixedly connected with clamping blocks (215) for fixing cables.

4. The electric vehicle charging connection device according to claim 1, characterized in that: Multi-stage electric telescopic rods (208) are fixedly mounted on both sides of the charging pile body (100), and free ends of the multi-stage electric telescopic rods (208) are fixedly connected to load-bearing blocks (209), which are connected to the first connecting rod (202).

5. The electric vehicle charging connection device according to claim 1, characterized in that: A connecting rod 1 (202) is fixedly connected to the charging pile body (100), and the cable is located between the connecting rod 1 (202) and the connecting rod 2 (203).

6. The electric vehicle charging connection device according to claim 1, characterized in that: The monitoring mechanism (300) comprises a handle fixedly connected to the plug (102), a cavity (301) being provided in the handle, a cable passing through the handle and electrically connected to the plug (102), a transmission plate (303) fixedly connected to the cable being slidably connected in the cavity (301), a portion where the cable is located between the transmission plate (303) and the plug (102) being a bending portion (302), a spring (304) being fixedly connected to the transmission plate (303) and the bottom of the cavity (301), an electromagnetic rod (306) being fixedly connected to the bottom of the transmission plate (303), and a magnetic ring (305) being magnetically connected to the electromagnetic rod (306) being fixedly connected to the bottom wall of the cavity (301).

7. The electric vehicle charging connection device according to claim 6, characterized in that: A sensor (307) is fixedly installed in the cavity (301), and the sensor (307) and the magnetic coil (305) are electrically connected.

8. The electric vehicle charging connection device according to claim 1, characterized in that: The charging pile body (100) is provided with a display screen (103) and a sound area (105) for reminding the user of standard operating procedures.

9. The electric vehicle charging connection device according to claim 1, characterized in that: The charging pile body (100) is provided with a code scanning area (104) for scanning code to pay and a camera (106).

10. The electric vehicle charging connection device according to claim 1, characterized in that: The charging pile body (100) is fixedly connected to a housing (201), and the charging pile body (100) is also provided with a mechanical claw (205) for fixing the plug (102).

Images