Electric vehicle charging device capable of automatically adjusting output power

Abstract

The invention discloses an electric vehicle charging device capable of automatically adjusting output power, and belongs to the technical field of charging piles, the electric vehicle charging device capable of automatically adjusting output power comprises a charging pile, a controller is fixedly installed in the charging pile, and a variable resistor is fixedly installed in the charging pile. A driving mechanism, a fan mechanism, an adjusting mechanism and a storage mechanism are fixedly mounted in the charging pile, a charging head is detachably mounted in the charging pile, and a display screen is fixedly mounted on the surface of the charging pile. A first motor in the driving mechanism enables a clamping block to rotate, the clamping block is inserted into a clamping groove, a rotary knob can rotate, the output voltage or current of the charging pile is further adjusted, and therefore the purpose of adjusting the output power of the charging pile is achieved, rapid adjustment of the power is achieved, and the operation flexibility is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of charging piles, and in particular relates to an electric vehicle charging device capable of automatically adjusting output power. Background Art

[0002] An electric vehicle is a vehicle that uses an onboard power source as its motive power source, uses an electric motor to drive its wheels, and complies with all requirements of road traffic and safety regulations. Because its impact on the environment is relatively smaller than that of traditional vehicles, its prospects are widely optimistic and it also complies with the requirements of new energy strategies. A charging pile is a power supply device installed outside the electric vehicle and connected to the AC power grid to provide AC power to the onboard charger of the electric vehicle. It can monitor and control the status of the charged battery in real time. At the same time, the charging pile can measure the charging power.

[0003] Charging piles often need to adjust power during charging. The power adjustment of existing charging piles usually requires manual operation or relies on remote control of the background system, which is not flexible enough. When the grid load is peak, the charging pile power needs to be reduced to avoid overload, but traditional charging piles lack automatic adjustment capabilities and require manual intervention. In addition, the power adjustment of some charging piles relies on mechanical transformer tap switching, which has a long response time and cannot match the dynamic needs of electric vehicle batteries in real time. At the same time, the power module of the charging pile will generate a lot of heat when running under high load. If the heat dissipation is poor, it may lead to decreased device efficiency, shortened life, and even trigger overheating protection shutdown. After charging is completed, the cable usually hangs on the ground. If it is not fixed, the plug may fall off due to vehicle movement, wind or human tripping, and scatter on the driveway or sidewalk. The detached cable may be crushed by passing vehicles, causing damage to the insulation layer and exposed live conductors, causing electric shock accidents or short circuit fires.

[0004] Therefore, there is an urgent need to provide an electric vehicle charging device that automatically adjusts output power to solve the above problems. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the above-mentioned prior art and provide an electric vehicle charging device that automatically adjusts the output power.

[0006] The technical solution adopted to solve the above technical problems is: to provide an electric vehicle charging device that automatically adjusts the output power, including a charging pile, a controller fixedly installed inside the charging pile, a variable resistor fixedly installed inside the charging pile, the output end of the variable resistor being electrically connected to the input end of the controller, and further comprising;

[0007] A driving mechanism is fixedly installed inside the charging pile, and the driving mechanism is used to drive the variable resistor to rotate and adjust the power. A fan mechanism is fixedly installed inside the charging pile, and the fan mechanism is used for heat dissipation inside the charging pile;

[0008] An adjustment mechanism is fixedly installed inside the charging pile, and the adjustment mechanism is used to adjust the heat dissipation efficiency inside the charging pile. A storage mechanism is fixedly installed inside the charging pile, and a charging head is detachably installed inside the charging pile. A charging cable is fixedly connected to the charging head, and the storage mechanism is used to store the charging cable;

[0009] A display screen is fixedly mounted on the surface of the charging pile.

[0010] The present invention is further configured as follows: a mounting groove is provided inside the charging pile, a partition is fixedly installed inside the mounting groove, a support plate is fixedly connected between the surface of the partition and the inner wall of the mounting groove, symmetrical air outlets are provided on the surface of the support plate, a back plate is fixedly connected between the partition and the inner wall of the mounting groove, the controller and the variable resistor are fixedly installed on one side of the back plate, the height of the back plate is lower than the height of the mounting groove, and a flow groove is formed between the top of the back plate and the inner wall of the mounting groove.

[0011] Through the above technical solution, the mounting groove is used for installing electrical components inside the charging pile, the partition is used to separate the electrical components from the driving mechanism, and the electrical components including the power module and safety devices are all installed on the surface of the support plate. When the fan mechanism is working, the wind rises from the air outlet to dissipate heat for the electrical components. The back plate supports the controller and the variable resistor, and at the same time divides the mounting groove again. The front of the back plate is used for installing electrical components, and the back of the back plate forms a ventilation groove. The circulation groove is used for air circulation to speed up the heat dissipation.

[0012] The present invention is further configured as follows: a ventilation groove is provided between the inner wall of the mounting groove and the other side of the back plate, the ventilation groove is fixedly connected to the inside of the circulation groove, a plurality of heat dissipation grooves are provided on the back of the charging pile, the heat dissipation grooves are fixedly connected to the inside of the ventilation groove, an inclined plate is fixedly installed inside the heat dissipation groove, a water outlet groove is provided on the back of the charging pile, the water outlet groove is fixedly connected to the bottom of the ventilation groove, a storage groove is provided on the surface of the charging pile, a symmetrical wire groove is provided inside the storage groove, and a rain shield is fixedly installed on the surface of the charging pile.

[0013] Through the above technical solution, when the cooling fan rotates, the heat is transported to the ventilation slot through the circulation slot, and the heat is taken out through the heat dissipation slot to achieve the heat dissipation effect. The setting of the inclined plate is to prevent rain and snow from entering the charging pile through the heat dissipation slot in rainy and snowy weather and causing damage to electrical components. When some rain and snow enter the ventilation slot, the back plate blocks the rain and snow, causing the rain and snow to accumulate inside the ventilation slot and be discharged by the water outlet slot. The storage slot stores the charging cable, thereby storing part of the charging cable. The cable slot provides space for the temporary storage of the remaining charging cables to avoid bending of the remaining charging cables. The rain shield protects the charging pile.

[0014] The present invention is further configured as follows: a plurality of pins are fixedly mounted on one side of the variable resistor, the pins are electrically connected to the input end of the controller, and a knob is rotatably connected to the other side of the variable resistor, and a slot is provided on the surface of the knob.

[0015] Through the above technical solution, the variable resistor is connected to the controller. When power adjustment is required, the knob is turned to adjust the output voltage or current to achieve the effect of changing the output power.

[0016] The present invention is further configured as follows: the driving mechanism includes a first motor, a fixing ring is fixedly mounted on the end of the transmission shaft of the first motor, a clamping block is fixedly mounted on the surface of the fixing ring, and the clamping block is movably inserted into the clamping slot.

[0017] Through the above technical solution, when the first motor starts, the fixed ring drives the card block to rotate. When the power needs to be adjusted, the card block is inserted into the card slot, and the rotation of the card block further drives the knob to rotate, thereby realizing the adjustment of voltage or current by the variable resistor.

[0018] The present invention is further configured as follows: an electric telescopic rod is fixedly mounted on the inner wall of the mounting groove, a movable plate is fixedly mounted on the end of the electric telescopic rod, and the first motor is fixedly mounted on the surface of the movable plate.

[0019] Through the above technical solution, before the power is adjusted, the electric telescopic rod is started to move the movable plate inside the installation slot, further driving the first motor to move, and the card block can be inserted into the card slot, waiting for the power adjustment instruction.

[0020] The present invention is further configured as follows: the fan mechanism includes a second motor, the second motor is fixedly installed inside the charging pile, a heat dissipation fan is fixedly installed on the surface of the transmission shaft of the second motor, and the fan mechanism is located below the support plate.

[0021] Through the above technical solution, when the second motor starts, the cooling fan rotates, the wind enters the installation slot from the air outlet and takes away the heat generated by the electronic components, thereby achieving the purpose of heat dissipation. The heat flows from the inside of the circulation slot into the ventilation slot and is discharged from the heat dissipation slot.

[0022] The present invention is further configured as follows: the adjustment mechanism includes a third motor, the output end of the third motor is transmission-connected to a transmission rod, a plurality of first bevel gears are fixedly mounted on the surface of the transmission rod, a plurality of connecting blocks are fixedly mounted on the inner wall of the ventilation slot, a rotating shaft is rotatably connected between two adjacent connecting blocks on the same horizontal plane, a baffle is fixedly mounted on the surface of the rotating shaft, the number of the baffles is consistent with the number of the heat dissipation slots, the baffle is movably fitted with the surface of the heat dissipation slot, a second bevel gear is fixedly mounted on the end of the rotating shaft, and the second bevel gear is meshed with the first bevel gear.

[0023] Through the above technical solution, the adjustment mechanism is used to adjust the size of the heat dissipation groove. In hot weather, the transmission rod is rotated by starting the third motor, and the transmission rod drives the first bevel gear to rotate. Through the engagement of the first bevel gear and the second bevel gear, multiple shafts can be rotated, so that the baffle can be away from the surface of the heat dissipation groove, so that the heat dissipation space inside the heat dissipation groove is maximized, and heat can be dissipated quickly. In severe cold weather, the distance between the baffle and the heat dissipation groove is adjusted as needed to ensure that a certain amount of heat is retained inside the charging pile, thereby avoiding internal power attenuation when the charging pile is charging, affecting the charging efficiency.

[0024] The present invention is further configured as follows: the storage mechanism includes a cylinder, the cylinder is fixedly installed inside the storage groove, a take-up roller is fixedly installed on the end of the cylinder, the take-up roller is slidably connected inside the storage groove, and a plurality of dividing plates are fixedly installed on the surface of the take-up roller, and the dividing plates are threaded on the surface of the take-up roller.

[0025] Through the above technical solution, when charging is needed, the charging head is pulled out from the surface of the charging pile. At this time, the cylinder is started to move the take-up roller out from the inside of the storage slot. The user unties the part of the charging cable wrapped around the surface of the take-up roller, thereby extending the length of the charging cable for charging. After charging is completed, the user winds part of the charging cable along the setting of the distribution board, and the cylinder retracts the take-up roller into the storage slot to prevent the charging cable from scattering.

[0026] The present invention is further configured as follows: two marks are fixedly installed on the surface of the charging cable, the charging cable between the two marks is movably wound on the surface of the take-up roller, the number of times the charging cable between the two marks is wound on the surface of the take-up roller is consistent with the number of grooves divided by the dividing plate on the surface of the take-up roller, and the remaining charging cables are slidably connected inside the wire slot.

[0027] Through the above technical solution, the two marks serve as a reminder. The user wraps the charging cable between the two marks on the surface of the take-up roller to complete the storage of the charging cable. The remaining charging cables can be temporarily stored inside the cable slot, thereby avoiding the remaining charging cables from bending during storage, which affects subsequent use.

[0028] The beneficial effects of the present invention are as follows:

[0029] 1. The present invention is provided with a variable resistor and a driving mechanism. The first motor inside the driving mechanism rotates the card block. The card block is inserted into the card slot, which enables the knob to rotate, further adjusting the output voltage or current of the charging pile, thereby achieving the purpose of adjusting the output power of the charging pile, realizing rapid adjustment of power, and improving operational flexibility.

[0030] 2. The present invention is provided with a heat dissipation mechanism. When the heat dissipation fan rotates, the heat is transported to the ventilation slot through the circulation slot, and the heat is taken out through the heat dissipation slot to achieve a heat dissipation effect. In addition, an inclined plate is provided inside the heat dissipation slot to effectively prevent rain and snow from entering the charging pile. When some rain and snow enter the charging pile, the back plate is provided to keep them inside the ventilation slot, thus avoiding damage to electrical components and extending the service life of electrical components.

[0031] 3. The present invention is provided with a storage mechanism. After the charging work is completed, part of the charging line is wound around the surface of the take-up roller along the arrangement of the distribution plate. The cylinder can retract the take-up roller into the storage groove to prevent the charging line from scattering, thereby protecting the charging line and avoiding electric shock accidents or short-circuit fires. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0033] Figure 2 It is a schematic diagram of the three-dimensional cross-sectional structure of the present invention;

[0034] Figure 3 It is a rear cross-sectional structural schematic diagram of the present invention;

[0035] Figure 4 It is a left side cross-sectional structural schematic diagram of the present invention;

[0036] Figure 5 This is a schematic diagram of the cross-sectional structure of a charging pile of the present invention;

[0037] Figure 6 It is a schematic structural diagram of the regulating mechanism of the present invention;

[0038] Figure 7 It is a schematic structural diagram of the storage mechanism of the present invention;

[0039] Figure 8 Schematic diagram of the variable resistor structure of the present invention;

[0040] Figure 9 for Figure 2 Enlarged view of point A in the middle.

[0041] Figure numerals: 1. Charging pile; 11. Mounting groove; 12. Partition; 13. Support plate; 131. Air outlet; 14. Back plate; 15. Circulation groove; 16. Ventilation groove; 17. Heat dissipation groove; 171. Inclined plate; 18. Water outlet groove; 19. Storage groove; 191. Wire groove; 101. Rain shield; 2. Controller; 3. Variable resistor; 31. Pin; 32. Knob; 33. Card slot; 4. Driving mechanism; 41. First motor; 42. Fixing ring ; 43. Card block; 44. Electric telescopic rod; 45. Movable plate; 5. Fan mechanism; 51. Second motor; 52. Cooling fan; 6. Adjustment mechanism; 61. Third motor; 62. Transmission rod; 63. First bevel gear; 64. Connecting block; 65. Rotating shaft; 66. Baffle; 67. Second bevel gear; 7. Storage mechanism; 71. Cylinder; 72. Take-up roller; 73. Distribution board; 8. Charging head; 81. Charging cable; 82. Logo; 9. Display screen. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0043] See also Figures 1-9 The present application provides an electric vehicle charging device that automatically adjusts output power, including a charging pile 1, a controller 2 fixedly installed inside the charging pile 1, a variable resistor 3 fixedly installed inside the charging pile 1, and an output end of the variable resistor 3 electrically connected to an input end of the controller 2.

[0044] like Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, a mounting groove 11 is provided inside the charging pile 1, a partition 12 is fixedly installed inside the mounting groove 11, a support plate 13 is fixedly connected between the surface of the partition 12 and the inner wall of the mounting groove 11, a symmetrical air outlet 131 is provided on the surface of the support plate 13, a back plate 14 is fixedly connected between the partition 12 and the inner wall of the mounting groove 11, the controller 2 and the variable resistor 3 are fixedly installed on one side of the back plate 14, the height of the back plate 14 is lower than the height of the mounting groove 11, and a flow groove 15 is formed between the top of the back plate 14 and the inner wall of the mounting groove 11.

[0045] Furthermore, in this embodiment, the mounting groove 11 is used for installing electrical components inside the charging pile 1, the partition 12 is used to separate the electrical components from the driving mechanism 4, and the electrical components including the power module and the safety device are all installed on the surface of the support plate 13. When the fan mechanism 5 is working, the wind rises from the air outlet 131 to dissipate heat for the electrical components. The back plate 14 supports the controller 2 and the variable resistor 3, and at the same time divides the mounting groove 11 again. The front of the back plate 14 is used for installing electrical components, and the back of the back plate 14 forms a ventilation groove 16. The circulation groove 15 is used for air circulation to accelerate the heat dissipation speed.

[0046] like Figure 3 、 Figure 4 and Figure 5 As shown, a ventilation groove 16 is provided between the inner wall of the mounting groove 11 and the other side of the back plate 14, and the ventilation groove 16 is fixedly connected to the inside of the circulation groove 15. A plurality of heat dissipation grooves 17 are provided on the back of the charging pile 1, and the heat dissipation grooves 17 are fixedly connected to the inside of the ventilation groove 16. An inclined plate 171 is fixedly installed inside the heat dissipation groove 17. A water outlet groove 18 is provided on the back of the charging pile 1, and the water outlet groove 18 is fixedly connected to the bottom of the ventilation groove 16. A storage groove 19 is provided on the surface of the charging pile 1, and a symmetrical wire groove 191 is provided inside the storage groove 19. A rain shield 101 is fixedly installed on the surface of the charging pile 1.

[0047] Furthermore, in this embodiment, when the heat dissipation fan 52 rotates, the heat is transported to the ventilation slot 16 through the circulation slot 15, and the heat is taken out through the heat dissipation slot 17 to achieve a heat dissipation effect. The inclined plate 171 is provided to prevent rain and snow from entering the charging pile 1 through the heat dissipation slot 17 in rainy and snowy weather and causing damage to electrical components. When some rain and snow enter the ventilation slot 16, the back plate 14 blocks the rain and snow, causing the rain and snow to accumulate inside the ventilation slot 16 and be discharged by the water outlet slot 18. The storage slot 19 stores part of the charging cable 81, and the wire slot 191 provides space for temporary storage of the remaining charging cables 81 to avoid bending of the remaining charging cables 81. The rain shield 101 protects the charging pile 1.

[0048] like Figure 2 and Figure 8 As shown, a plurality of pins 31 are fixedly mounted on one side of the variable resistor 3 , and the pins 31 are electrically connected to the input end of the controller 2 . A knob 32 is rotatably connected to the other side of the variable resistor 3 , and a slot 33 is provided on the surface of the knob 32 .

[0049] Furthermore, in this embodiment, the variable resistor 3 is connected to the controller 2. When power adjustment is required, the knob 32 is rotated to adjust the output voltage or current, thereby achieving the effect of changing the output power.

[0050] A driving mechanism 4 is fixedly installed inside the charging pile 1, and the driving mechanism 4 is used to drive the variable resistor 3 to rotate and adjust the power. A fan mechanism 5 is fixedly installed inside the charging pile 1, and the fan mechanism 5 is used to dissipate heat inside the charging pile 1.

[0051] like Figure 9 As shown, the driving mechanism 4 includes a first motor 41 , a fixing ring 42 is fixedly mounted on the end of the transmission shaft of the first motor 41 , a clamping block 43 is fixedly mounted on the surface of the fixing ring 42 , and the clamping block 43 is movably inserted into the clamping slot 33 .

[0052] Furthermore, in this embodiment, when the first motor 41 is started, the fixing ring 42 drives the clamping block 43 to rotate. When the power needs to be adjusted, the clamping block 43 is inserted into the clamping slot 33. The rotation of the clamping block 43 further drives the knob 32 to rotate, thereby realizing the adjustment of the voltage or current by the variable resistor 3.

[0053] like Figure 9 As shown, an electric telescopic rod 44 is fixedly mounted on the inner wall of the mounting groove 11 , a movable plate 45 is fixedly mounted on the end of the electric telescopic rod 44 , and the first motor 41 is fixedly mounted on the surface of the movable plate 45 .

[0054] Furthermore, in this embodiment, before power adjustment, the electric telescopic rod 44 is started, causing the movable plate 45 to move inside the installation slot 11, further driving the first motor 41 to move, and the card block 43 can be inserted into the card slot 33, waiting for the power adjustment instruction.

[0055] like Figure 2 As shown, the fan mechanism 5 includes a second motor 51 , which is fixedly mounted inside the charging pile 1 . A cooling fan 52 is fixedly mounted on the surface of the transmission shaft of the second motor 51 . The fan mechanism 5 is located below the support plate 13 .

[0056] Furthermore, in this embodiment, when the second motor 51 is started, the cooling fan 52 rotates, and the wind enters the interior of the installation slot 11 from the air outlet 131 and takes away the heat generated by the operation of the electronic components, thereby achieving the purpose of heat dissipation. The heat flows from the interior of the circulation slot 15 into the ventilation slot 16 and is discharged from the heat dissipation slot 17.

[0057] An adjustment mechanism 6 is fixedly installed inside the charging pile 1, and the adjustment mechanism 6 is used to adjust the heat dissipation efficiency inside the charging pile 1. A storage mechanism 7 is fixedly installed inside the charging pile 1, and a charging head 8 is detachably installed inside the charging pile 1. A charging cable 81 is fixedly connected to the charging head 8, and the storage mechanism 7 is used to store the charging cable 81.

[0058] like Figure 3 and Figure 6As shown, the adjustment mechanism 6 includes a third motor 61, the output end of the third motor 61 is transmission-connected to a transmission rod 62, a plurality of first bevel gears 63 are fixedly mounted on the surface of the transmission rod 62, a plurality of connecting blocks 64 are fixedly mounted on the inner wall of the ventilation slot 16, a rotating shaft 65 is rotatably connected between two adjacent connecting blocks 64 on the same horizontal plane, a baffle 66 is fixedly mounted on the surface of the rotating shaft 65, the number of baffles 66 is consistent with the number of heat dissipation slots 17, the baffles 66 are movably fitted with the surface of the heat dissipation slots 17, a second bevel gear 67 is fixedly mounted on the end of the rotating shaft 65, and the second bevel gear 67 is meshed with the first bevel gear 63.

[0059] Furthermore, in this embodiment, the adjustment mechanism 6 is used to adjust the size of the heat dissipation groove 17. In hot weather, the transmission rod 62 is rotated by starting the third motor 61, and the transmission rod 62 drives the first bevel gear 63 to rotate. The engagement of the first bevel gear 63 with the second bevel gear 67 enables the multiple rotating shafts 65 to rotate, so that the baffle 66 can be away from the surface of the heat dissipation groove 17, so that the internal heat dissipation space of the heat dissipation groove 17 is maximized and the heat can be dissipated quickly. In severe cold weather, the distance between the baffle 66 and the heat dissipation groove 17 is adjusted as needed to ensure that a certain amount of heat is retained inside the charging pile 1 to avoid internal power attenuation when the charging pile 1 is charging, thereby affecting the charging efficiency.

[0060] like Figure 2 and Figure 7 As shown, the storage mechanism 7 includes a cylinder 71, which is fixedly installed inside the storage groove 19. A take-up roller 72 is fixedly installed at the end of the cylinder 71. The take-up roller 72 is slidably connected inside the storage groove 19. A plurality of dividing plates 73 are fixedly installed on the surface of the take-up roller 72. The dividing plates 73 are threaded on the surface of the take-up roller 72.

[0061] Furthermore, in this embodiment, when charging is needed, the charging head 8 is pulled out from the surface of the charging pile 1. At this time, the cylinder 71 is started to move the take-up roller 72 out from the inside of the storage groove 19. The user removes the part of the charging cable 81 wrapped around the surface of the take-up roller 72, thereby extending the length of the charging cable 81 for charging. After charging is completed, the user winds part of the charging cable 81 along the setting of the dividing plate 73, and the cylinder 71 retracts the take-up roller 72 into the storage groove 19 to prevent the charging cable 81 from scattering.

[0062] like Figure 7 As shown, two marks 82 are fixedly installed on the surface of the charging cable 81, and the charging cable 81 between the two marks 82 is movably wound on the surface of the take-up roller 72. The number of times the charging cable 81 between the two marks 82 is wound on the surface of the take-up roller 72 is consistent with the number of grooves divided by the dividing plate 73 on the surface of the take-up roller 72, and the remaining charging cables 81 are slidably connected inside the wire slot 191.

[0063] Furthermore, in this embodiment, the two marks 82 serve as a reminder. The user wraps the charging cable 81 between the two marks 82 on the surface of the take-up roller 72, thereby completing the storage of the charging cable 81. The remaining charging cables 81 can be temporarily stored inside the wire groove 191, thereby avoiding the remaining charging cables 81 from bending during storage, which affects subsequent use.

[0064] A display screen 9 is fixedly mounted on the surface of the charging pile 1 .

[0065] The working principle of this embodiment is as follows: before the power is adjusted, the electric telescopic rod 44 is started, so that the movable plate 45 moves inside the installation slot 11, further driving the first motor 41 to move, and the card block 43 can be inserted into the card slot 33, waiting for the instruction to adjust the power. When the power needs to be adjusted, the rotation of the card block 43 further drives the knob 32 to rotate, thereby realizing the adjustment of the voltage or current of the variable resistor 3 to achieve the purpose of power adjustment. When the internal temperature of the charging pile 1 is too high, the second motor 51 is started, and the cooling fan 52 rotates. The wind enters the installation slot 11 from the air outlet 131 and takes away the heat generated by the operation of the electronic components. The heat circulates from the inside of the circulation slot 15 into the ventilation slot 16 and is discharged from the heat dissipation slot 17. In hot weather, the transmission rod 62 is rotated by starting the third motor 61, and the transmission rod 62 drives the first bevel gear 63 to rotate. Through the engagement of the first bevel gear 63 and the second bevel gear 67, multiple rotating shafts 65 can rotate, so that the baffle 66 can be away from the surface of the heat dissipation groove 17, so that the heat dissipation space inside the heat dissipation groove 17 is maximized and the heat can be dissipated quickly. In severe cold weather, the distance between the baffle 66 and the heat dissipation groove 17 is adjusted as needed to ensure that a certain amount of heat remains inside the charging pile 1 to avoid internal power attenuation when the charging pile 1 is charging. When charging is needed, the charging head 8 is pulled out from the surface of the charging pile 1. At this time, the cylinder 71 starts to move the take-up roller 72 out of the storage groove 19. The user releases the part of the charging line 81 wrapped around the surface of the take-up roller 72, thereby extending the length of the charging line 81 for charging. After charging is completed, the user uses the mark 82 to wind part of the charging line 81 along the setting of the branch plate 73, and the cylinder 71 retracts the take-up roller 72 into the storage groove 19.

[0066] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. An electric vehicle charging device capable of automatically adjusting output power, comprising a charging pile (1), characterized in that: The charging pile (1) has a controller (2) fixedly installed inside, a variable resistor (3) fixedly installed inside, an output end of the variable resistor (3) being electrically connected to an input end of the controller (2), and further comprising: A driving mechanism (4) is fixedly installed inside the charging pile (1), and the driving mechanism (4) is used to drive the variable resistor (3) to rotate and adjust the power. A fan mechanism (5) is fixedly installed inside the charging pile (1), and the fan mechanism (5) is used for heat dissipation inside the charging pile (1); An adjusting mechanism (6) is fixedly installed inside the charging pile (1), and the adjusting mechanism (6) is used to adjust the heat dissipation efficiency inside the charging pile (1). A storage mechanism (7) is fixedly installed inside the charging pile (1). A charging head (8) is detachably installed inside the charging pile (1), and a charging line (81) is fixedly connected inside the charging head (8). The storage mechanism (7) is used to store the charging line (81). A display screen (9) is fixedly mounted on the surface of the charging pile (1).

2. The electric vehicle charging device with automatic output power adjustment according to claim 1, characterized in that: The charging pile (1) is provided with a mounting groove (11) inside, a partition (12) is fixedly installed inside the mounting groove (11), a support plate (13) is fixedly connected between the surface of the partition (12) and the inner wall of the mounting groove (11), a symmetrical air outlet (131) is provided on the surface of the support plate (13), a back plate (14) is fixedly connected between the partition (12) and the inner wall of the mounting groove (11), the controller (2) and the variable resistor (3) are fixedly installed on one side of the back plate (14), the height of the back plate (14) is lower than the height of the mounting groove (11), and a flow groove (15) is formed between the top of the back plate (14) and the inner wall of the mounting groove (11).

3. The electric vehicle charging device with automatic output power adjustment according to claim 2, characterized in that: A ventilation groove (16) is provided between the inner wall of the installation groove (11) and the other side of the back plate (14), and the ventilation groove (16) is fixedly connected to the inside of the circulation groove (15). A plurality of heat dissipation grooves (17) are provided on the back of the charging pile (1), and the heat dissipation grooves (17) are fixedly connected to the inside of the ventilation groove (16). An inclined plate (171) is fixedly installed inside the heat dissipation groove (17). A water outlet groove (18) is provided on the back of the charging pile (1), and the water outlet groove (18) is fixedly connected to the bottom of the ventilation groove (16). A storage groove (19) is provided on the surface of the charging pile (1), and a symmetrical wire groove (191) is provided inside the storage groove (19). A rain shield (101) is fixedly installed on the surface of the charging pile (1).

4. The electric vehicle charging device with automatic output power adjustment according to claim 1, characterized in that: A plurality of pins (31) are fixedly mounted on one side of the variable resistor (3), and the pins (31) are electrically connected to the input end of the controller (2). A knob (32) is rotatably connected to the other side of the variable resistor (3), and a slot (33) is provided on the surface of the knob (32).

5. The electric vehicle charging device with automatic output power adjustment according to claim 4, characterized in that: The driving mechanism (4) comprises a first motor (41), a fixed ring (42) is fixedly mounted on the end of the transmission shaft of the first motor (41), a clamping block (43) is fixedly mounted on the surface of the fixed ring (42), and the clamping block (43) is movably inserted into the inside of the clamping slot (33).

6. The electric vehicle charging device with automatic output power adjustment according to claim 5, characterized in that: An electric telescopic rod (44) is fixedly mounted on the inner wall of the mounting groove (11), a movable plate (45) is fixedly mounted on the end of the electric telescopic rod (44), and the first motor (41) is fixedly mounted on the surface of the movable plate (45).

7. The electric vehicle charging device with automatic output power adjustment according to claim 2, characterized in that: The fan mechanism (5) comprises a second motor (51), the second motor (51) is fixedly mounted inside the charging pile (1), a heat dissipation fan (52) is fixedly mounted on the surface of the transmission shaft of the second motor (51), and the fan mechanism (5) is located below the support plate (13).

8. The electric vehicle charging device with automatic output power adjustment according to claim 3, characterized in that: The regulating mechanism (6) comprises a third motor (61), the output end of the third motor (61) is connected to a transmission rod (62), a plurality of first bevel gears (63) are fixedly mounted on the surface of the transmission rod (62), a plurality of connecting blocks (64) are fixedly mounted on the inner wall of the ventilation slot (16), a rotating shaft (65) is rotatably connected between two adjacent connecting blocks (64) on the same horizontal plane, a baffle (66) is fixedly mounted on the surface of the rotating shaft (65), the number of the baffles (66) is consistent with the number of the heat dissipation slots (17), the baffles (66) are movably fitted with the surface of the heat dissipation slots (17), a second bevel gear (67) is fixedly mounted on the end of the rotating shaft (65), and the second bevel gear (67) is meshed with the first bevel gear (63).

9. The electric vehicle charging device with automatic output power adjustment according to claim 3, characterized in that: The storage mechanism (7) comprises a cylinder (71), the cylinder (71) is fixedly mounted inside the storage groove (19), a take-up roller (72) is fixedly mounted at the end of the cylinder (71), the take-up roller (72) is slidably connected inside the storage groove (19), a plurality of line dividing plates (73) are fixedly mounted on the surface of the take-up roller (72), and the line dividing plates (73) are threaded on the surface of the take-up roller (72).

10. The electric vehicle charging device with automatic output power adjustment according to claim 9, characterized in that: Two marks (82) are fixedly installed on the surface of the charging line (81), and the charging line (81) between the two marks (82) is movably wound on the surface of the take-up roller (72). The number of times the charging line (81) between the two marks (82) is wound on the surface of the take-up roller (72) is consistent with the number of grooves divided by the dividing plate (73) on the surface of the take-up roller (72), and the rest of the charging line (81) is slidably connected to the inside of the line slot (191).

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