A monitoring and protection device for charging pile

Abstract

The present invention belongs to the technical field of charging equipment protection, and discloses a monitoring and protection device for a charging pile, including a base and two patch cords. The present invention sets the coordination of cooling components and patch cords, and all structures except the guide rail in the cooling components rotate with the center of the cross section of the patch cord, and the derivation component pushes the derivation rod to move, and the derivation rod squeezes the alcohol inside the carrier box through the sealing plate, and finally enters the inside of the carrier box through the first notch, and applies alcohol to the periphery of the patch cord, the sponge block only occupies one of the chambers, and the air pipe is connected to the other chamber, and the exhaust component will extract the air in the other chamber of the guide rail through the air pipe, and the alcohol can evaporate quickly and take away the temperature of the surface of the patch cord. The temperature of the air extracted by the exhaust component has been reduced by the alcohol, and the low-temperature air is sprayed in the direction of the dual-axis motor and the connector, so as to better reduce the temperature of the connector.

Description

Technical Field

[0001] The present invention belongs to the technical field of charging equipment protection, and in particular is a monitoring and protection device for a charging pile. Background Art

[0002] Charging piles refer to equipment used to charge electric vehicles. They are mainly installed in parking lots or charging stations. They convert external current into appropriate current and charge electric vehicles. To ensure the safety of its operation, a voltage monitoring device is usually connected in parallel before the main line inside the charging pile is connected to the charging gun to ensure that the charging pile can work safely.

[0003] However, when the charging pile is working, its internal main circuit and voltage monitoring equipment usually generate very high heat. In addition, since a pluggable plug wire is used between the main circuit and the external circuit line, the heat generated by the end of the plug wire close to the plug and the plug when the charging pile is charging is very high, which leads to excessive heat and damage to the plug. For this reason, we provide a monitoring and protection device for charging piles. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a monitoring and protection device for a charging pile, which solves the problem that when the charging pile is charging, the heat generated by the end of the connector close to the connector and the connector is very high, which causes the connector to be overheated and damaged.

[0005] To achieve the above object, the present invention provides the following technical solution: a monitoring and protection device for a charging pile, comprising a base and two patch cords, one side of the patch cord is provided with a plug, the top of the base is connected to a double-axis motor through a hydraulic cylinder, two hexagonal shafts are respectively fixed on both sides of the output shaft of the double-axis motor, a reduction gear set is fixed on the top of the base, and further comprises,

[0006] A limiting plate three is fixedly mounted on the top of the base, and the two patch cords pass through the limiting plate three;

[0007] An air extraction component is arranged on the top of the base, and two cooling components are respectively sleeved on the outer peripheries of the two patch cords, the two cooling components are used to apply alcohol to the outer peripheries of the two patch cords respectively, the air extraction component is connected with the two cooling components, the output shaft of the dual-axis motor drives the air extraction component to extract the gas volatilized by the alcohol applied to the outer periphery of the patch cord by the cooling component through one of the hexagonal shafts, and the air extraction component sprays the extracted gas to the side close to the dual-axis motor;

[0008] A derivation component is jointly sleeved on the outer periphery of the two patch cords, the output shaft of the dual-axis motor drives the derivation component to work through one of the hexagonal shafts and the reduction gear set, and the derivation component is used to drive the cooling component to work;

[0009] The cooling component comprises two guide rails sleeved on the periphery of the patch cord, a carrying box is movably connected between the two guide rails, a liquid storage box is fixedly mounted on the top of the carrying box, an air pipe is fixedly mounted on the top of the carrying box, a sealing plate 1 and a sealing plate 2 are movably mounted inside the liquid storage box, a guide rod is fixedly mounted on the outside of the sealing plate 1, a sponge block is arranged inside the carrying box, the inside of the guide rail is connected with the inside of the liquid storage box through a first notch, and the outside of the sealing plate 2 is elastically connected with the outside of the sealing plate 1 through a spring telescopic rod 1;

[0010] A protective assembly movably disposed on the top of the base, the protective assembly being used to cut the patch cord and insulate the cut cross-section of the patch cord;

[0011] One end of the two connectors close to the protective component is used to connect to the main line of the charging pile.

[0012] Preferably, the bottom of the sponge block contacts the periphery of the patch cord, the air pipe is connected to the interior of the carrier box, the interior of the liquid storage box is combined with sealing plates one and two to form a cavity, and the interior of the cavity is filled with alcohol.

[0013] Preferably, the limit plate three is transversely divided into two independent units and fastened by threads, the two guide rails are respectively longitudinally cut into two independent individuals and fastened by threads, and the dual-axis motor is movably arranged on the top of the base.

[0014] Preferably, the exhaust assembly includes a partition box and a limit plate fixed to the top of the base, the interior of the partition box is connected to the interior of the limit plate through a second slot, the interior of the partition box is movably connected to a fan, the air outlet of the partition box is connected to an activated carbon filter plate, and two rubber rings are respectively clamped on the outside of the partition box.

[0015] Preferably, the output shaft of the dual-axis motor is connected to the fan transmission through a hexagonal shaft, the hexagonal shaft passes through the fan and is clamped with the input shaft of the reduction gear set, the air pipe movably passes through the rubber ring and is connected to the interior of the partition box, the two connectors pass through the partition box, and the partition box is horizontally divided into two independent individuals and fastened by threads.

[0016] Preferably, the derivation assembly comprises two threaded barrels respectively sleeved on the outer circumferences of the two connectors, two transmission wheels are respectively threadedly sleeved on the outer circumferences of the two threaded barrels, and the two transmission wheels are connected to the main shaft via a chain drive.

[0017] Preferably, the transmission wheel is fixedly connected to the push rod, the main shaft is movably connected to the top of the base, the outer side of the main shaft is transmission-connected to the output shaft of the reduction gear set, and the threaded barrel and the transmission wheel are respectively cut longitudinally into two independent units and are respectively fastened by threads.

[0018] Preferably, the protective component includes two spring telescopic rods fixedly mounted on the top of the base, the movable end of the two spring telescopic rods is fixedly mounted with a carrying plate, the top of the carrying plate is respectively connected to two cutting knives by bearings, two plastic gears are respectively fixedly mounted on the same side of the two cutting knives, two rubber sleeves are respectively fixedly mounted on the other side of the two plastic gears, and the opposite surfaces of the two cutting knives are respectively connected to a storage wheel via two nylon ropes.

[0019] Preferably, the storage wheel is movably mounted on the top of the base, the protection assembly further comprises a plurality of limit plates 2 fixedly mounted on the top of the base, the side of the storage wheel is movably mounted with a limit buckle, and the nylon rope movably passes through the limit buckle and the limit plate 2 respectively.

[0020] Preferably, the two plastic gears mesh with each other, the outer circumferences of the two connectors are respectively sleeved with two rubber sleeves, the bearing plate is movably arranged on the top of the base, and the middle of the storage wheel is provided with a notch adapted to the hexagonal shaft.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention arranges the coordination of cooling components and connectors and other structures. All structures except the guide rail in the cooling components rotate with the center of the cross section of the connector. The deduction component pushes the deduction rod to move. The deduction rod squeezes the alcohol inside the carrier box through a sealing plate, and finally enters the interior of the carrier box through a first notch, impregnates the sponge block, and applies alcohol to the periphery of the connector. The interior of the carrier box is divided into two independent chambers, the sponge block occupies only one of the chambers, and the air pipe is connected to the other chamber. The exhaust component will extract the air in the other chamber of the guide rail through the air pipe. The alcohol can evaporate quickly and take away the temperature of the surface of the connector. The temperature of the air extracted by the exhaust component has been lowered by the alcohol, and the low-temperature air is sprayed in the direction of the dual-axis motor and the connector, so as to better reduce the temperature of the connector.

[0023] The present invention arranges the coordination of structures such as the cooling component and the exhaust component. When the hydraulic cylinder pushes the dual-axis motor and the hexagonal shaft and no longer transmits the connection to the reduction gear set, the derivation component will no longer drive the cooling component to work, but the output shaft of the dual-axis motor still drives the fan to rotate through the hexagonal shaft, and extracts the remaining alcohol volatile gas inside the carrier box through the second notch and the air pipe. When the gas passes through the activated carbon filter plate, the activated carbon in the activated carbon filter plate will absorb the alcohol in the gas, so that the air will not have an ignition reaction due to the heat or electric arc generated by the connection between the plug and the main line, but the fan still sprays low-temperature air in the direction of the plug, further improving the cooling efficiency of the device.

[0024] The present invention cooperates with structures such as protective components and patch cords. When the temperature sensor detects that the temperature continues to rise and the dual-axis motor is in working condition, and at the same time, the voltage monitoring device detects that the current is too far different from the rated value, the hydraulic cylinder will deduce the hexagonal shaft of the dual-axis motor output shaft to be inserted into the interior of the storage wheel and drive it to rotate. The storage wheel reels in the nylon rope and pulls the cutting knife to rotate and cut the patch cord. When the two cutting knives can no longer be pulled and moved, the nylon rope will directly pull the load-bearing plate and compress the spring telescopic rod 2. The rubber sleeve 1 will be sleeved on the outer periphery of the patch cord. The external current no longer transmits power to the main circuit board through the patch cord and the plug, further preventing the external current from generating an arc reaction with the metal products inside the charging pile and igniting. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the appearance structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the transmission connection between the dual-axis motor of the present invention and the derivation assembly through the reduction gear set;

[0027] Figure 3 It is a schematic diagram of the structure coordination between the cooling component and the derivation component of the present invention;

[0028] Figure 4 It is a schematic diagram of the structure splitting explosion of the cooling component and the derivation component of the present invention;

[0029] Figure 5 This is a schematic diagram of the internal structure of the liquid storage box of the present invention;

[0030] Figure 6 It is a schematic diagram of the internal structure coordination between the carrier box and the liquid storage box of the present invention;

[0031] Figure 7 It is a schematic diagram of the appearance structure of the air extraction component and the derivation component of the present invention;

[0032] Figure 8 It is a schematic diagram of the internal structure of the partition box of the present invention and the matching of the hexagonal shaft and the input shaft of the reduction gear set;

[0033] Fig. 9 This is a schematic diagram of the appearance and structure of the protective component of the present invention;

[0034] Fig.10 This is a schematic diagram of the cooperation between the dual-axis motor of the present invention and the protection component structure through the hexagonal shaft;

[0035] Fig.11 It is a schematic diagram of the cooperation between the storage wheel and the limiting buckle structure of the present invention.

[0036] In the figure: 1, base; 2, patch cord; 21, plug; 3, dual-axis motor; 4, hydraulic cylinder; 5, derivation assembly; 51, spindle; 52, chain; 53, transmission wheel; 54, threaded barrel; 6, cooling assembly; 61, guide rail; 62, carrier box; 63, liquid storage box; 64, air pipe; 65, derivation rod; 66, sealing plate 1; 67, sealing plate 2; 68, spring telescopic rod 1; 69, injection port; 60, sponge block; 601, first notch; 7, air extraction assembly Parts; 71. Partition box; 72. Activated carbon filter plate; 73. Fan; 74. Second notch; 75. Rubber ring; 76. Limit plate one; 8. Protection component; 81. Spring telescopic rod two; 82. Loading plate; 83. Cutting knife; 84. Plastic gear; 85. Storage wheel; 86. Nylon rope; 87. Limit buckle; 88. Rubber sleeve one; 80. Rubber sleeve two; 89. Limit plate two; 9. Thread; 10. Reduction gear set; 11. Limit plate three; 12. Hexagonal shaft. DETAILED DESCRIPTION

[0037] 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.

[0038] like Figures 1 to 11 As shown, the present invention provides a monitoring and protection device for a charging pile, including a base 1 and two connectors 2, a connector 21 is provided on one side of the connector 2, a double-axis motor 3 is connected to the top of the base 1 through a hydraulic cylinder 4, two hexagonal shafts 12 are fixedly installed on both sides of the output shaft of the double-axis motor 3, a reduction gear set 10 is fixedly installed on the top of the base 1, and further includes,

[0039] A limiting plate 3 11 is fixedly mounted on the top of the base 1, and two patch cords 2 pass through the limiting plate 3 11;

[0040] An exhaust component 7 is arranged on the top of the base 1, and two cooling components 6 are respectively sleeved on the outer peripheries of the two patch cords 2. The two cooling components 6 are used to apply alcohol to the outer peripheries of the two patch cords 2 respectively. The exhaust component 7 is connected with the two cooling components 6. The output shaft of the dual-axis motor 3 drives the exhaust component 7 through a hexagonal shaft 12 to extract the gas volatilized by the alcohol applied to the outer periphery of the patch cord 2 by the cooling component 6. The exhaust component 7 sprays the extracted gas to the side close to the dual-axis motor 3;

[0041] The derivation assembly 5 is sleeved on the outer circumference of the two patch cords 2. The output shaft of the dual-axis motor 3 drives the derivation assembly 5 to work through a hexagonal shaft 12 and a reduction gear set 10. The derivation assembly 5 is used to drive the cooling assembly 6 to work.

[0042] The cooling component 6 includes two guide rails 61 sleeved on the outer periphery of the patch cord 2, a carrier box 62 is movably connected between the two guide rails 61, a liquid storage box 63 is fixedly installed on the top of the carrier box 62, an air pipe 64 is fixedly installed on the top of the carrier box 62, a sealing plate 1 66 and a sealing plate 2 67 are movably installed inside the liquid storage box 63, a push rod 65 is fixedly installed on the outside of the sealing plate 1 66, a sponge block 60 is arranged inside the carrier box 62, the inside of the guide rail 61 is connected to the inside of the liquid storage box 63 through the first notch 601, and the outside of the sealing plate 2 67 is elastically connected to the outside of the sealing plate 1 66 through the spring telescopic rod 1 68;

[0043] A protective component 8 movably disposed on the top of the base 1, the protective component 8 is used to cut the connector 2 and insulate the cut cross section of the connector 2;

[0044] One end of the two connectors 2 close to the protective assembly 8 is used to connect to the main line of the charging pile.

[0045] The bottom of the sponge block 60 contacts the outer periphery of the patch cord 2, the air pipe 64 is connected to the interior of the carrier box 62, the interior of the liquid storage box 63 is combined with the sealing plate 1 66 and the sealing plate 2 67 to form a cavity, and the interior of the cavity is filled with alcohol.

[0046] The above scheme is adopted: the plug 21 is preferably inserted into the main circuit board, one side of the plug 2 is connected to the external power supply, a temperature sensor is provided on the part of the main circuit board near the plug 21, and a voltage monitoring device is also connected in parallel on the main circuit board. When the temperature sensor senses that the temperature of the part of the main circuit board near the plug 21 rises to a specified value, the dual-axis motor 3 will be started;

[0047] The dual-shaft motor 3 starts the air extraction component 7 through the hexagonal shaft 12 on one side of the output shaft, and the hexagonal shaft 12 also starts the cooling component 6 through the reduction gear set 10 and the derivation component 5;

[0048] At this time, all structures except the guide rail 61 in the cooling component 6 start to rotate with the center of the cross section of the patch cord 2, and the derivation component 5 will also push the derivation rod 65 to move, and the derivation rod 65 squeezes the alcohol inside the carrier box 62 through the sealing plate 1 66, so that the alcohol indirectly pushes the sealing plate 2 67 and compresses the spring telescopic rod 1 68, and the first notch 601 forms a cavity with the inside of the liquid storage box 63 and the sealing plate 1 66 and the sealing plate 2 67. The alcohol finally enters the inside of the carrier box 62 through the first notch 601 and impregnates the sponge block 60, and the sponge block 60 is still in a rotating state at this time, so that the alcohol is applied to the periphery of the patch cord 2. When the temperature of the periphery of the patch cord 2 is reduced, the temperature of the connector 21 will also be reduced, thereby achieving the purpose of cooling;

[0049] The interior of the carrier box 62 is divided into two independent chambers, the sponge block 60 occupies only one of the chambers, and the air pipe 64 is connected to the other chamber. The dual-axis motor 3 drives the vacuum assembly 7 to extract air through the hexagonal shaft 12. The vacuum assembly 7 will extract the air in the other chamber of the guide rail 61 through the air pipe 64, so that the alcohol can evaporate quickly and take away the temperature of the surface of the connector 2. It should be noted that the temperature of the air extracted by the vacuum assembly 7 has been lowered by the alcohol, and the low-temperature air is sprayed in the direction of the dual-axis motor 3 and the connector 21, thereby once again reducing the temperature of the connector 21. At the same time, the temperature generated by the dual-axis motor 3 is also reduced, further protecting the charging pile.

[0050] like Figure 3 and Figure 4 As shown, the limit plate 3 11 is divided into two independent units horizontally and fastened by threads 9 , the two guide rails 61 are respectively cut into two independent individuals longitudinally and fastened by threads 9 , and the dual-axis motor 3 is movably arranged on the top of the base 1 .

[0051] Adopt the above scheme; if Figure 4 The limit plate three 11 and the guide rail 61 shown in the figure are divided into two by the axis and fixedly sleeved on the outer periphery of the connector 2 by the thread 9, and the limit plate three 11 is arranged on the base 1, and the base 1 is fixed inside the charging pile, so that during the maintenance process, the connector 21 will not be separated from the main circuit board due to misoperation. By connecting with the thread 9, the guide rail 61 can be better fixed to the outer periphery of the connector 2 and further improve the working stability of the cooling component 6, and facilitate the insertion of the connector 21. The limit plate three 11 also improves the stability of the connector 2 after installation. When the temperature sensor senses that the temperature continues to rise and the dual-axis motor 3 is in working state, the derivation component 5 and the hexagonal shaft 12 will be pushed by the hydraulic cylinder 4. The hexagonal shaft 12 is no longer connected to the reduction gear set 10, so that the alcohol no longer flows out and avoids the alcohol burning the circuit inside the charging pile.

[0052] like Figures 1 to 4 and Figure 8 As shown, the exhaust assembly 7 includes a partition box 71 and a limit plate 76 fixed to the top of the base 1. The interior of the partition box 71 is connected to the interior of the limit plate 76 through a second slot 74. The interior of the partition box 71 is movably connected to a fan 73. The air outlet of the partition box 71 is connected to an activated carbon filter plate 72. Two rubber rings 75 are respectively clamped on the outside of the partition box 71.

[0053] The output shaft of the dual-axis motor 3 is connected to the fan 73 through the hexagonal shaft 12. The hexagonal shaft 12 passes through the fan 73 and is clamped with the input shaft of the reduction gear set 10. The air pipe 64 movably passes through the rubber ring 75 and is connected to the interior of the partition box 71. The two connectors 2 pass through the partition box 71. The partition box 71 is horizontally divided into two independent individuals and fastened by threads 9.

[0054] The above scheme is adopted: the hexagonal shaft 12 always passes through and is transmission-connected to the fan 73. When the hydraulic cylinder 4 pushes the dual-axis motor 3 and the hexagonal shaft 12 and is no longer transmission-connected to the reduction gear set 10, the derivation component 5 will no longer drive the cooling component 6 to work, but the output shaft of the dual-axis motor 3 still drives the fan 73 to rotate through the hexagonal shaft 12, and extracts the remaining alcohol volatile gas inside the carrier box 62 through the second notch 74 and the air pipe 64. When the gas passes through the activated carbon filter plate 72, the activated carbon in the activated carbon filter plate 72 will absorb the alcohol in the gas, so that the air will not explode due to the heat or arc generated by the connection between the plug 21 and the main line, but the fan 73 still sprays low-temperature air toward the plug 21, further improving the cooling efficiency of the device.

[0055] like Figures 1 to 4 and Figure 7 , Figure 8 As shown, the derivation assembly 5 includes two threaded barrels 54 respectively sleeved on the outer circumference of the two patch cords 2 , and two transmission wheels 53 are respectively threadedly sleeved on the outer circumference of the two threaded barrels 54 , and the two transmission wheels 53 are connected to the main shaft 51 through a chain 52 .

[0056] The transmission wheel 53 is fixedly connected to the push rod 65, the main shaft 51 is movably connected to the top of the base 1, the outer side of the main shaft 51 is transmission-connected to the output shaft of the reduction gear set 10, and the threaded barrel 54 and the transmission wheel 53 are respectively cut longitudinally into two independent units and fastened by threads 9.

[0057] The above scheme is adopted: the output shaft of the dual-axis motor 3 is preferentially connected to the fan 73 through the hexagonal shaft 12, and then connected to the main shaft 51 through the reduction gear set 10. At this time, the main shaft 51 drives the transmission wheel 53 and each cooling component 6 to rotate at a reduced speed through the chain 52. The transmission wheel 53 moves through the threaded cylinder 54 and pushes the push rod 65 to reduce its speed, thereby forcing the amount of alcohol applied to be reduced, but the wind force generated by the fan 73 remains unchanged, so that the wind force can quickly take away the air from which the alcohol evaporates, further reducing the alcohol content in the air and reducing the possibility of alcohol fire.

[0058] like Figure 1 and Figures 9 to 11 As shown, the protection component 8 includes a spring telescopic rod 81 fixedly mounted on the top of the base 1, and a supporting plate 82 is fixedly mounted on the movable end of the spring telescopic rod 81. Two cutting knives 83 are respectively connected to the top of the supporting plate 82 by bearings, and two plastic gears 84 are respectively fixedly mounted on the same side of the two cutting knives 83, and two rubber sleeves 88 are respectively fixedly mounted on the other side of the two plastic gears 84, and the opposite surfaces of the two cutting knives 83 are respectively connected to a storage wheel 85 through two nylon ropes 86.

[0059] The storage wheel 85 is movably mounted on the top of the base 1, and the protection component 8 also includes a plurality of limit plates 89 fixedly mounted on the top of the base 1. The side of the storage wheel 85 is movably mounted with a limit buckle 87, and the nylon rope 86 movably passes through the limit buckle 87 and the limit plate 89 respectively.

[0060] The two plastic gears 84 mesh with each other, the outer circumferences of the two patch cords 2 are respectively covered with two rubber sleeves 80, the bearing plate 82 is movably arranged on the top of the base 1, and the middle of the storage wheel 85 is provided with a notch adapted to the hexagonal shaft 12

[0061] Adopting the above scheme: when the temperature sensor detects that the temperature continues to rise and the dual-axis motor 3 is in the working state, and at the same time, the voltage monitoring device detects that the current is too different from the rated value, the hydraulic cylinder 4 will infer that the dual-axis motor 3 is no longer connected to the reduction gear set 10, and the reduction gear set 10, the induction component 5 and the cooling component 6 are all in the stopped state, so that the alcohol will no longer leak, and the hexagonal shaft 12 on the output shaft of the dual-axis motor 3 will be inserted into the inside of the storage wheel 85 and drive it to rotate, the storage wheel 85 reels the nylon rope 86 and immediately pulls the cutting knife 83 to rotate and cut the patch cord 2, the external current no longer transmits power to the main circuit board through the patch cord 2 and the plug 21, and the plastic gear 84 will make the working state and speed of the two cutting knives 83 the same, so that even if one of the nylon ropes 86 is in a damaged state, the other nylon rope 86 can still pull the cutting knife 83 to cut;

[0062] When the two cutting knives 83 can no longer be pulled and moved, the nylon rope 86 will directly pull the supporting plate 82 and compress the spring telescopic rod 2 81, and the rubber sleeve 1 88 will be sleeved on the outer periphery of the connector 2, while the rubber sleeve 2 80 will always keep the connector 2 in a horizontal state, and the rubber sleeve 1 88 will eventually fit the outer periphery of the rubber sleeve 2 80, further preventing the external current from generating an arc reaction with the metal products inside the charging pile and igniting.

[0063] The working principle and use process of the present invention:

[0064] The plug 21 is preferably inserted into the main circuit board, one side of the plug 2 is connected to the external power supply, a temperature sensor is provided on the part of the main circuit board near the plug 21, and a voltage monitoring device is also connected in parallel on the main circuit board. When the temperature sensor senses that the temperature of the part of the main circuit board near the plug 21 rises to a specified value, the dual-axis motor 3 is started;

[0065] The output shaft of the dual-axis motor 3 is firstly connected to the fan 73 through the hexagonal shaft 12, and then connected to the main shaft 51 through the reduction gear set 10. At this time, the main shaft 51 drives the transmission wheel 53 and each cooling component 6 to rotate at a reduced speed through the chain 52, and the transmission wheel 53 moves through the threaded cylinder 54 and pushes the derivation rod 65 to reduce its speed;

[0066] All structures except the guide rail 61 in the cooling component 6 start to rotate with the center of the cross section of the patch cord 2, and the derivation component 5 also pushes the derivation rod 65 to move, and the derivation rod 65 squeezes the alcohol inside the carrier box 62 through the sealing plate 1 66, so that the alcohol indirectly pushes the sealing plate 2 67 and compresses the spring telescopic rod 1 68, and the first notch 601 forms a cavity with the interior of the liquid storage box 63 and the sealing plate 1 66 and the sealing plate 2 67. Alcohol finally enters the interior of the carrier box 62 through the first notch 601 and impregnates the sponge block 60, and the sponge block 60 is still in a rotating state at this time, so that the alcohol is applied to the periphery of the patch cord 2, and the interior of the carrier box 62 is divided into two independent chambers, the sponge block 60 occupies only one of the chambers, and the air pipe 64 is connected to the other chamber;

[0067] The output shaft of the dual-axis motor 3 drives the fan 73 to rotate through the hexagonal shaft 12, and extracts the alcohol volatile gas inside the carrier box 62 through the second notch 74 and the air pipe 64. When the gas passes through the activated carbon filter plate 72, the activated carbon in the activated carbon filter plate 72 will absorb the alcohol in the gas, so that the air will not explode due to the heat or arc generated by the connection between the plug 21 and the main line, but the fan 73 still sprays the low-temperature air toward the plug 21.

[0068] When the temperature sensor detects that the temperature continues to rise and the dual-axis motor 3 is in working state, and at the same time, the voltage monitoring device detects that the current is too different from the rated value, the hydraulic cylinder 4 will infer that the dual-axis motor 3 is no longer connected to the reduction gear set 10, and the reduction gear set 10, the induction component 5 and the cooling component 6 are all in a stopped state, so that the alcohol no longer leaks, and the hexagonal shaft 12 on the output shaft of the dual-axis motor 3 will be inserted into the inside of the storage wheel 85 and drive it to rotate. The storage wheel 85 reels up the nylon rope 86 and immediately pulls the cutting knife 83 to rotate and cut the connector 2. The external current no longer transmits power to the main circuit board through the connector 2 and the plug 21. When the two cutting knives 83 can no longer be pulled and moved, the nylon rope 86 will directly pull the bearing plate 82 and compress the spring telescopic rod 2 81, and the rubber sleeve 1 88 will be sleeved on the outer periphery of the connector 2, and the rubber sleeve 2 80 will always keep the connector 2 in a horizontal state, and the rubber sleeve 1 88 will eventually fit the outer periphery of the rubber sleeve 2 80.

[0069] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including 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 device.

[0070] 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. A monitoring and protection device for a charging pile, comprising a base (1) and two patch cords (2), wherein a plug connector (21) is provided on one side of the patch cord (2), the top of the base (1) is connected to a dual-axis motor (3) via a hydraulic cylinder (4), two hexagonal shafts (12) are respectively fixedly mounted on both sides of the output shaft of the dual-axis motor (3), and a reduction gear set (10) is fixedly mounted on the top of the base (1), characterized in that: Also includes, A limiting plate three (11) fixedly mounted on the top of the base (1), wherein the two connectors (2) pass through the limiting plate three (11); An exhaust component (7) is arranged on the top of the base (1) and two cooling components (6) are respectively sleeved on the outer peripheries of the two patch cords (2), the two cooling components (6) respectively apply alcohol to the outer peripheries of the two patch cords (2), the exhaust component (7) is connected to the two cooling components (6), the output shaft of the dual-axis motor (3) drives the exhaust component (7) through a hexagonal shaft (12) to extract the gas volatilized by the alcohol applied by the cooling component (6) to the outer periphery of the patch cord (2), and the exhaust component (7) sprays the extracted gas to a side close to the dual-axis motor (3); a derivation component (5) which is sleeved together on the outer circumference of the two patch cords (2); the output shaft of the dual-axis motor (3) drives the derivation component (5) to work via a hexagonal shaft (12) and a reduction gear set (10); and the derivation component (5) is used to drive the cooling component (6) to work; The cooling component (6) comprises two guide rails (61) sleeved on the outer circumference of the patch cord (2), a carrier box (62) is movably connected between the two guide rails (61), a liquid storage box (63) is fixedly installed on the top of the carrier box (62), an air pipe (64) is fixedly installed on the top of the carrier box (62), a sealing plate 1 (66) and a sealing plate 2 (67) are movably installed inside the liquid storage box (63), a push rod (65) is fixedly installed on the outer side of the sealing plate 1 (66), a sponge block (60) is arranged inside the carrier box (62), the interior of the guide rail (61) is connected to the interior of the liquid storage box (63) through a first notch (601), and the outer side of the sealing plate 2 (67) is elastically connected to the outer side of the sealing plate 1 (66) through a spring telescopic rod 1 (68); A protective component (8) movably arranged on the top of the base (1), the protective component (8) being used to cut the connector (2) and insulate the cut cross section of the connector (2); One end of the two patch cords (2) close to the protection component (8) is used to connect to the main line of the charging pile; The air extraction assembly (7) comprises a partition box (71) fixedly mounted on the top of the base (1) and a first limiting plate (76); the interior of the partition box (71) is communicated with the interior of the first limiting plate (76) via a second notch (74); a fan (73) is movably connected to the interior of the partition box (71); an air outlet of the partition box (71) is connected to an activated carbon filter plate (72); and two rubber rings (75) are respectively clamped to the outside of the partition box (71); The output shaft of the dual-axis motor (3) is connected to the fan (73) through a hexagonal shaft (12); the hexagonal shaft (12) passes through the fan (73) and is clamped with the input shaft of the reduction gear set (10); the air pipe (64) passes through the rubber ring (75) and the air pipe (64) is connected to the inside of the partition box (71); the two connectors (2) pass through the partition box (71); the partition box (71) is transversely divided into two independent units and fastened by threads (9); The protection component (8) comprises a spring telescopic rod (81) fixedly mounted on the top of the base (1); a supporting plate (82) is fixedly mounted on the movable end of the spring telescopic rod (81); two cutting knives (83) are respectively connected to the top of the supporting plate (82) by bearings; two plastic gears (84) are respectively fixedly mounted on the same side of the two cutting knives (83); two rubber sleeves (88) are respectively fixedly mounted on the other side of the two plastic gears (84); and opposite surfaces of the two cutting knives (83) are respectively connected to a storage wheel (85) via two nylon ropes (86); The storage wheel (85) is movably mounted on the top of the base (1); the protection assembly (8) further comprises a plurality of second limit plates (89) fixedly mounted on the top of the base (1); a limit buckle (87) is movably mounted on the side of the storage wheel (85); and the nylon rope (86) movably passes through the limit buckle (87) and the second limit plate (89); The two plastic gears (84) mesh with each other, the outer circumferences of the two connectors (2) are respectively sleeved with two rubber sleeves (80), the bearing plate (82) is movably arranged on the top of the base (1), and the middle of the storage wheel (85) is provided with a notch that matches the hexagonal shaft (12).

2. The monitoring and protection device for charging pile according to claim 1, characterized in that: The bottom of the sponge block (60) contacts the outer periphery of the patch cord (2), the air pipe (64) is connected to the interior of the carrier box (62), and the interior of the liquid storage box (63) is combined with the sealing plate 1 (66) and the sealing plate 2 (67) to form a cavity, and the interior of the cavity is filled with alcohol.

3. The monitoring and protection device for charging pile according to claim 1, characterized in that: The limit plate three (11) is transversely divided into two independent units and fastened by threads (9), the two guide rails (61) are respectively longitudinally cut into two independent individuals and fastened by threads (9), and the dual-axis motor (3) is movably arranged on the top of the base (1).

4. The monitoring and protection device for charging pile according to claim 1, characterized in that: The derivation assembly (5) comprises two threaded barrels (54) respectively sleeved on the outer circumferences of the two patch cords (2), two transmission wheels (53) being respectively threadedly sleeved on the outer circumferences of the two threaded barrels (54), and the two transmission wheels (53) are connected to the main shaft (51) via a chain (52).

5. The monitoring and protection device for charging pile according to claim 4, characterized in that: The transmission wheel (53) is fixedly connected to the push rod (65), the main shaft (51) is movably connected to the top of the base (1), the outer side of the main shaft (51) is transmission-connected to the output shaft of the reduction gear set (10), and the threaded barrel (54) and the transmission wheel (53) are respectively cut longitudinally into two independent units and are respectively fastened by threads (9).

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