Electric vehicle charging cable device and use method thereof

Abstract

The invention discloses an electric vehicle charging cable device and a using method thereof, and relates to the technical field of cable devices. Through the unique design, the defects in the prior art are ingeniously overcome, the heat dissipation window is automatically opened along with sliding of the sliding block during charging, and good heat dissipation of the cable is ensured; and after charging is completed, the charging cable main body automatically retracts into the cable protection box under the cooperation of the counterweight and the clamping unit, and meanwhile, the heat dissipation window is closed, so that closed protection is realized. An automatic take-up and pay-off and closed protection linkage mechanism is adopted, friction between the cable and the ground and erosion of the external environment are avoided, safety and stability are improved, meanwhile, a speed control unit is designed, the take-up and pay-off speed of a charging cable body is limited, safety is guaranteed, operation is convenient, a protection device does not need to be manually and frequently opened and closed, and the practicability and reliability of the device are greatly improved. The cable service life is effectively prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of cable device technology, specifically to an electric vehicle charging cable device and its usage method. Background Technology

[0002] Charging stations are usually installed on the ground. When charging an electric vehicle, the charging gun needs to be inserted into the corresponding part of the electric vehicle. After charging is completed, the charging gun is returned to its original position by the operator. The function of the electric vehicle charging cable is to connect the charging station and the charging head. The length of the electric vehicle charging cable is designed to adapt to the charging location of various vehicles.

[0003] However, in existing technologies, electric vehicle charging cable devices typically suffer from the following problems: First, most existing cable installations are exposed to the elements and are subject to long-term erosion from natural environmental factors such as wind, sun, and rain. This accelerates the aging process of the cables, gradually reducing their insulation and mechanical properties, thereby shortening their service life and increasing the frequency and cost of maintenance and replacement.

[0004] Secondly, when the cables are long, their messy distribution on the ground makes them prone to tangling, which not only affects aesthetics but can also cause problems such as jamming and knotting during cable winding and unwinding, inconveniencing operators and reducing charging efficiency. Moreover, messy cables on the ground are more likely to be run over by vehicles or trampled by pedestrians, further increasing the risk of wear and damage.

[0005] Third, if a protective box is added to protect the cable, operators need to frequently open and close the box when retrieving and placing the cable, causing inconvenience, especially during emergency charging or peak charging periods, wasting a significant amount of time on operating the protective box. Furthermore, cables generate heat during use; if heat dissipation is poor inside the protective box, heat accumulation will cause the cable temperature to rise, accelerating the aging of the cable insulation layer and potentially leading to safety hazards, affecting the safety and reliability of charging. To address the shortcomings of existing technologies, this invention provides an electric vehicle charging cable device and its usage method to solve the above problems. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides an electric vehicle charging cable device and its usage method. Through a unique design, it cleverly solves the defects of existing technologies. During charging, the heat dissipation window automatically opens as the slider slides, ensuring good heat dissipation for the cable. After charging is complete, the main body of the charging cable automatically retracts into the cable protection box with the help of a counterweight and a clamping unit, while the heat dissipation window closes, achieving sealed protection. This automatic retraction and sealing protection linkage mechanism avoids cable friction with the ground and external environmental corrosion, improving safety and stability. Simultaneously, a speed control unit is designed to limit the retraction speed of the charging cable main body, ensuring safety. Furthermore, the device is easy to operate, eliminating the need for frequent manual opening and closing of the protective device, greatly improving its practicality and reliability, effectively extending cable lifespan, and reducing maintenance costs.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an electric vehicle charging cable device, comprising a cable protection box, a guide frame, a slider, a movable pulley, a counterweight assembly, a charging cable body, a protective plate, and a speed control unit; The cable protection box is installed on the ground of the charging pile, and the side of the cable protection box is provided with a heat dissipation window; The guide frame is disposed in the inner cavity of the cable protection box, and a fixed pulley is rotatably connected to the guide frame; The slider is slidably connected to the guide frame; The movable pulley is rotatably connected to the slider; The counterweight assembly is mounted on the slider; The main body of the charging cable is installed inside the charging pile and passes through the cable protection box. The main body of the charging cable passes around a fixed pulley and a movable pulley respectively. The movable pulley applies downward pressure to the main body of the charging cable. The protective plates are located on both sides of the slider and are slidably connected within the heat dissipation window; The speed control unit is located between the slider and the guide frame and is used to limit the slider's movement speed.

[0008] Preferably, the speed control unit includes: Aluminum tubes are mounted on the guide frame; A connecting post is disposed on the slider and slidably connected inside the aluminum tube; A magnet block is mounted on the connecting post and slidably connected inside the aluminum tube.

[0009] Preferably, the guide frame is provided with a guide rod for limiting the slider.

[0010] Preferably, a support column is fixedly connected to the slider, the support column is fixedly connected to the protective plate, and a limiting platform is provided on the protective plate, the limiting platform being slidably connected to the heat dissipation window.

[0011] Preferably, a sealing gasket corresponding to the position of the limiting platform is snapped onto the heat dissipation window, and a limiting seat for limiting the position of the protective plate is provided on the cable protection box.

[0012] Preferably, a clamping unit is provided between the limiting seat and the protective plate, the clamping unit comprising: An electric push rod is mounted on the limiting seat; A locking block is provided at the output end of the electric push rod; A card slot is provided on the protective plate, and the card block is movably engaged in the card slot.

[0013] Preferably, a connecting cable is fixedly connected to the electric push rod, and a control switch is provided on the connecting cable. The control switch is located on the charging head, and the connecting cable is located inside the main body of the charging cable.

[0014] Preferably, the counterweight assembly includes: A base is disposed on the slider; The counterweight is movably attached to the base. A locating pin is threaded onto the counterweight and the base.

[0015] Preferably, the cable protection box is provided with a charging head protective cover for protecting the charging head and a bracket for supporting the bottom of the charging head.

[0016] The second aspect of the present invention provides a method of using an electric vehicle charging cable device, the method of using the device comprising the following steps: Step S1, when it is necessary to charge an electric vehicle, the operator first picks up the charging head and pulls the charging cable body to insert the charging head into the charging interface of the electric vehicle. In step S2, as the charging head is pulled out, the slider slides upward on the guide frame, and the downward pressure applied by the movable pulley to the charging cable body keeps the charging cable body in a taut state. In step S3, during the sliding process of the slider, the connecting column in the speed control unit slides inside the aluminum tube. The magnetic damping effect between the magnet block and the aluminum tube limits the movement speed of the slider, preventing the charging cable body from being retracted or extended too quickly. Step S4: During the sliding process of the slider, the protective plate moves synchronously and opens the heat dissipation window to dissipate the heat generated by the charging cable body. Step S5: After the charging head is inserted into the charging interface of the electric vehicle, press the control switch to control the output end of the electric push rod to stretch, push the block to engage with the slot, thereby fixing the position of the protective plate, slider and movable pulley. At this time, the main body of the charging cable will not be pulled back. Step S6: After charging is complete, the operator pulls the charging head out of the electric vehicle's charging port and presses the control switch again to retract the output end of the electric push rod, causing the card block to disengage from the slot. At this time, the protective plate and the movable pulley slide under the action of the slider. Under the action of the counterweight, the slider and the movable pulley drive the charging cable body to automatically retract. In step S7, during the retraction of the charging cable body, the speed is controlled again by the speed control unit. At the same time, the protective plate is finally snapped into place and sealed with the heat dissipation window to achieve closed protection for the charging cable body.

[0017] This invention discloses an electric vehicle charging cable device and its usage method, which have the following beneficial effects: 1. This electric vehicle charging cable device adopts an integrated design of automatic cable retraction, protection, and heat dissipation. During charging, the heat dissipation window remains open, ensuring the cable is in a good heat dissipation environment. After charging is complete, the charging cable automatically retracts into the cable protection box under the action of counterweight, closing the heat dissipation window. This provides sealed protection for the charging cable, preventing external debris, dust, moisture, etc., from entering the protective box and damaging the cable. It effectively avoids environmental corrosion when the cable is not in use, further extending the cable's lifespan. The device cleverly combines the automatic cable retraction function with the opening and closing of the heat dissipation window, enabling smooth cable extension and automatic opening of the heat dissipation window during charging, and automatic retraction and closing of the heat dissipation window after charging. This linkage mechanism not only improves operational convenience but also ensures effective protection and orderly storage of the cable in any state. It meets both the heat dissipation requirements during charging and the sealing protection requirements when not charging, greatly improving the overall performance and reliability of the device.

[0018] 2. This electric vehicle charging cable device effectively limits the slider's movement speed through a speed control unit, preventing problems such as swinging and tangling of the charging cable due to excessive speed during retraction and extension, ensuring the smoothness and orderliness of cable retraction and extension. During charging, the cable maintains appropriate tension, improving charging stability and safety. Simultaneously, the automatic retraction and extension and sealing protection functions reduce human intervention, lowering potential safety hazards caused by improper operation, further enhancing the safety of the entire charging process.

[0019] 3. This electric vehicle charging cable device features a counterweight assembly whose quantity and position can be flexibly adjusted according to the weight of the charging cable or actual usage requirements. This allows for precise control of the downward pressure applied to the cable by the movable pulley, enhancing the device's versatility and adaptability. Furthermore, the rational structural design of each component facilitates easy installation, maintenance, and replacement, reducing maintenance costs and complexity, and improving the device's lifespan and operational efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a stretched schematic diagram of the main body of the charging cable of the present invention; Figure 3 This is a schematic diagram of the internal structure of the cable protection box of the present invention; Figure 4 This is a schematic diagram of the structure of the protective plate of the present invention; Figure 5 This is a schematic diagram of the heat dissipation window structure of the present invention; Figure 6 This is a schematic diagram of the structure of the limiting seat of the present invention; Figure 7 This is a schematic diagram of the clamping unit of the present invention; Figure 8 This is a disassembly diagram of the slider of the present invention; Figure 9 This is a schematic diagram of the counterweight component of the present invention; Figure 10 This is a schematic diagram of the speed control unit of the present invention.

[0022] In the diagram: 1. Cable protection box; 101. Heat dissipation window; 1011. Sealing gasket; 102. Limit seat; 103. Charging head protective cover; 104. Bracket; 2. Guide frame; 201. Fixed pulley; 202. Guide rod; 3. Slider; 4. Moving pulley; 5. Counterweight assembly; 501. Base; 502. Counterweight block; 503. Positioning pin; 6. Charging cable body; 7. Protective plate; 701. Limit platform; 702. Support column; 8. Speed ​​control unit; 801. Aluminum tube; 802. Connecting column; 803. Magnet block; 9. Clamping unit; 901. Electric push rod; 902. Clamping block; 903. Clamping slot; 9011. Connecting cable; 9012. Control switch. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] This application provides an electric vehicle charging cable device and its usage method, which solves the problems of existing electric vehicle charging cable devices where the cables are exposed to the outside, making them susceptible to corrosion from natural factors such as wind, sun, and rain, resulting in accelerated aging and reduced service life; long cables tend to be messy and distributed on the ground, increasing the risk of wear; and even with the addition of a protective box, the protective box needs to be opened and closed frequently when taking out and putting in the cables, which is inconvenient to operate, and the cables inside the protective box do not dissipate heat well.

[0025] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0026] Example 1: This embodiment of the invention discloses an electric vehicle charging cable device, according to the attached... Figure 1 To be continued Figure 10 As shown, it includes a cable protection box 1, a guide frame 2, a slider 3, a movable pulley 4, a counterweight assembly 5, a charging cable body 6, a protective plate 7, and a speed control unit 8; The cable protection box 1 is installed on the ground of the charging pile. It has a heat dissipation window 101 on its side, and an external charging head protective cover 103 and a bracket 104. The heat dissipation window 101 provides heat dissipation for the interior of the cable protection box 1, preventing excessive internal temperature from affecting the performance and lifespan of the charging cable body 6. The charging head protective cover 103 protects the charging head from damage by the external environment when not in use, while the bracket 104 supports the bottom of the charging head, making it more stable.

[0027] The guide frame 2 is located inside the cable protection box 1. A fixed pulley 201 is rotatably connected to the guide frame 2, and a guide rod 202 is provided on the guide frame 2 to limit the slider 3. The guide frame 2 provides support and guidance for the charging cable body 6, enabling the charging cable body 6 to be wound and unwound according to a predetermined path, thereby improving the efficiency and stability of cable winding and unwinding.

[0028] The guide frame 2 changes the direction of movement of the charging cable body 6 through the guiding action of the fixed pulley 201, so that the charging cable body 6 can be retracted and extended along a predetermined path. The guide rod 202 limits and guides the movement of the slider 3, ensuring that the slider 3 slides stably along the guide frame 2. The guide frame 2 is installed in the inner cavity of the cable protection box 1, then the fixed pulley 201 is installed on the guide frame 2, and the guide rod 202 is installed on the guide frame 2.

[0029] The slider 3 is slidably connected to the guide frame 2, and a support column 702 is fixedly connected to the slider 3. The support column 702 is fixedly connected to the protective plate 7. When the slider 3 slides on the guide frame 2, it drives the support column 702 to move. The support column 702 drives the protective plate 7 to slide within the heat dissipation window 101, thereby realizing the protective function of the heat dissipation window 101.

[0030] The movable pulley 4 is rotatably connected to the slider 3. The charging cable body 6 passes around the fixed pulley 201 and the movable pulley 4. The movable pulley 4 applies downward pressure to the charging cable body 6, so that the charging cable body 6 maintains a certain tension during the winding and unwinding process, making it easy for the operator to insert and remove it.

[0031] The counterweight assembly 5 is mounted on the slider 3 and includes a base 501, a counterweight block 502, and a positioning pin 503. By adjusting the number or position of the counterweight blocks 502, the downward pressure applied by the movable pulley 4 to the charging cable body 6 can be changed, thereby adapting to charging cable bodies 6 of different weights or flexibly adjusting according to the usage requirements of different scenarios.

[0032] The speed control unit 8 is located between the slider 3 and the guide frame 2 to limit the movement speed of the slider 3. The speed control unit 8 includes an aluminum tube 801, a connecting post 802, and a magnet 803. The connecting post 802 is slidably connected inside the aluminum tube 801, and the magnet 803 is slidably connected inside the aluminum tube 801, generating magnetic damping between the magnet 803 and the aluminum tube 801. This effectively limits the movement speed of the slider 3, prevents the charging cable body 6 from retracting or extending too quickly, avoids the cable from swinging or tangling due to inertia, and improves the safety and convenience of use.

[0033] The protective plate 7 is located on both sides of the slider 3 and slidably connected within the heat dissipation window 101. A limiting platform 701 is provided on the protective plate 7. Driven by the slider 3, the protective plate 7 slides along the heat dissipation window 101, preventing external debris from entering the inner cavity of the cable protection box 1 through the heat dissipation window 101, thus protecting the charging cable body 6 and other components inside. The limiting platform 701 is slidably connected to the heat dissipation window 101 and cooperates with the sealing gasket 1011, further enhancing the sealing performance and limiting effect of the protective plate 7.

[0034] The cable protection box 1 provides a relatively enclosed and safe storage space for the charging cable body 6, preventing the charging cable body 6 from being damaged by external environmental factors. At the same time, it achieves internal heat dissipation through the heat dissipation window 101 to ensure the normal operating temperature of the cable.

[0035] The slider 3 serves as a support for the movable pulley 4 and the counterweight assembly 5. It slides on the guide frame 2 and adjusts the tension and retraction of the charging cable body 6 by changing its position. In use, the slider 3 is slidably connected to the guide frame 2, and the movable pulley 4 and the counterweight assembly 5 are installed on the slider 3. At the same time, the support column 702 is fixedly connected to the protective plate 7.

[0036] The movable pulley 4 uses its rotation to change the direction of force on the charging cable body 6, and applies downward pressure to maintain the cable tension, making the charging cable body 6 more stable and easier to operate during winding and unwinding. In use, simply pass the charging cable body 6 around the fixed pulley 201 and the movable pulley 4.

[0037] The counterweight assembly 5 adjusts the downward pressure applied by the movable pulley 4 to the charging cable body 6 by the weight of the counterweight block 502, so as to adapt to different charging cable bodies 6 and usage scenarios. In use, select the appropriate number and position of the counterweight blocks 502 according to the actual situation, attach them to the base 501, and fix them with the positioning pins 503.

[0038] The speed control unit 8 utilizes the magnetic damping effect generated when the magnet 803 slides inside the aluminum tube 801 to limit the sliding speed of the connecting post 802, thereby limiting the movement speed of the slider 3 and preventing the charging cable body 6 from retracting or extending too quickly. In use, simply install the aluminum tube 801 on the guide frame 2, install the connecting post 802 on the slider 3 and slide it inside the aluminum tube 801, and then install the magnet 803 on the connecting post 802.

[0039] Example 2: This embodiment of the invention discloses an electric vehicle charging cable device, according to the attached... Figure 1 To be continued Figure 10 As shown, it includes a cable protection box 1, a guide frame 2, a slider 3, a movable pulley 4, a counterweight assembly 5, a charging cable body 6, a protective plate 7, and a speed control unit 8; The cable protection box 1 is installed on the ground of the charging pile, and the cable protection box 1 has a heat dissipation window 101 on its side. The guide frame 2 is installed in the inner cavity of the cable protection box 1, and a fixed pulley 201 is rotatably connected to the guide frame 2; Slider 3 is slidably connected to guide frame 2; The movable pulley 4 is rotatably connected to the slider 3; The counterweight component 5 is mounted on the slider 3; The charging cable body 6 is installed inside the charging pile and passes through the cable protection box 1. The charging cable body 6 passes around the fixed pulley 201 and the movable pulley 4 respectively. The movable pulley 4 applies downward pressure to the charging cable body 6. The protective plate 7 is disposed on both sides of the slider 3 and slidably connected to the heat dissipation window 101; The speed control unit 8 is located between the slider 3 and the guide frame 2 and is used to limit the movement speed of the slider 3.

[0040] The cable protection box 1 is provided with a limiting seat 102 for limiting the protective plate 7. A clamping unit 9 is provided between the limiting seat 102 and the protective plate 7. The clamping unit 9 includes: Electric push rod 901 is mounted on limit seat 102; Block 902 is located at the output end of electric actuator 901; Card slot 903 is provided on the protective plate 7, and card block 902 is movably engaged in card slot 903.

[0041] The limiting seat 102 is installed on the cable protection box 1 to limit the protective plate 7. It cooperates with the clamping unit 9 to fix and unlock the protective plate 7, thereby facilitating the limiting of the charging cable body 6 and preventing the charging cable body 6 from retracting. This makes it convenient for charging and also facilitates unlocking later, thus enabling the charging cable body 6 to be retracted.

[0042] A connecting cable 9011 is fixedly connected to the electric push rod 901. A control switch 9012 is provided on the connecting cable 9011. The control switch 9012 is located on the charging head. The connecting cable 9011 is located inside the charging cable body 6.

[0043] The locking unit 9 uses the telescopic movement of the electric push rod 901 to move the locking block 902 into the slot 903 on the protective plate 7, thereby fixing and unlocking the protective plate 7. The control switch 9012 is located on the charging head, allowing the operator to control the action of the locking unit 9 simultaneously when plugging and unplugging the charging head.

[0044] During installation, the electric push rod 901 is installed on the limit seat 102, the card block 902 is installed on the output end of the electric push rod 901, the card slot 903 is opened on the protective plate 7, and the connecting cable 9011 is connected to the electric push rod 901. At the same time, the control switch 9012 is set on the charging head.

[0045] The second aspect of the present invention provides a method of using an electric vehicle charging cable device, the method of using the device includes the following steps: Step S1, when it is necessary to charge the electric vehicle, the operator first picks up the charging head and pulls the charging cable body 6 to insert the charging head into the charging interface of the electric vehicle. In step S2, as the charging head is pulled out, the slider 3 slides upward on the guide frame 2, and the downward pressure applied by the movable pulley 4 to the charging cable body 6 keeps the charging cable body 6 taut. In step S3, during the sliding process of slider 3, the connecting column 802 in the speed control unit 8 slides inside the aluminum tube 801. The magnetic damping effect between the magnet block 803 and the aluminum tube 801 limits the movement speed of slider 3, preventing the charging cable body 6 from being retracted or extended too quickly. In step S4, during the sliding of slider 3, the protective plate 7 is moved synchronously and the opening of heat dissipation window 101 is opened to dissipate the heat generated by the charging cable body 6. Step S5: After the charging head is inserted into the charging interface of the electric vehicle, press the control switch 9012 to control the output end of the electric push rod 901 to stretch, push the card block 902 to engage with the card slot 903, thereby fixing the positions of the protective plate 7, the slider 3 and the movable pulley 4. At this time, the charging cable body 6 will not be pulled back. Step S6: After charging is complete, the operator pulls the charging head out of the electric vehicle's charging port and presses the control switch 9012 again to control the output end of the electric push rod 901 to retract, causing the card block 902 to disengage from the card slot 903. At this time, the protective plate 7 and the movable pulley 4 slide under the drive of the slider 3. Under the action of the counterweight, the slider 3 and the movable pulley 4 drive the charging cable body 6 to automatically retract. In step S7, during the retraction of the charging cable body 6, the speed is controlled again by the speed control unit 8. At the same time, the protective plate 7 is finally snapped into place and sealed with the heat dissipation window 101, thus achieving closed protection for the charging cable body 6.

[0046] This invention effectively solves the problems existing in the prior art and improves the safety, reliability, and convenience of electric vehicle charging cable devices. Its overall structural design is reasonable, its functions are complete, and it has good practicality and promotional value. It can be widely used in the field of electric vehicle charging, providing a more stable, efficient, and convenient solution for charging electric vehicles.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An electric vehicle charging cable arrangement, characterized by, The utility model relates to a charging cable protection box and charging cable protection device, and belongs to the field of charging cable protection. It comprises: A cable protection box (1) is arranged at the ground position of the charging pile, and a heat dissipation window (101) is arranged on the side of the cable protection box (1); A guide frame (2) is arranged in the inner cavity of the cable protection box (1), and a fixed pulley (201) is rotatably connected to the guide frame (2); A sliding block (3) is slidably connected to the guide frame (2); A movable pulley (4) is rotatably connected to the sliding block (3); A counterweight assembly (5) is arranged on the sliding block (3); A charging cable main body (6) is arranged in the charging pile and passes through the cable protection box (1), the charging cable main body (6) passes around the fixed pulley (201) and the movable pulley (4) respectively, and the movable pulley (4) applies a downward pressure to the charging cable main body (6); A protection plate (7) is arranged on both sides of the sliding block (3) and is slidably connected in the heat dissipation window (101); 2. An electric vehicle charging cable arrangement according to claim 1, wherein, A speed control unit (8) is arranged between the sliding block (3) and the guide frame (2) and is used for limiting the movement speed of the sliding block (3). The speed control unit (8) comprises: An aluminum pipe (801) is arranged on the guide frame (2); A connecting column (802) is arranged on the sliding block (3) and is slidably connected in the aluminum pipe (801); 3. An electric vehicle charging cable arrangement according to claim 2, wherein, A magnet block (803) is arranged on the connecting column (802) and is slidably connected in the aluminum pipe (801).

4. An electric vehicle charging cable arrangement according to claim 3, wherein, A guide rod (202) for limiting the sliding block (3) is arranged on the guide frame (2).

5. An electric vehicle charging cable arrangement according to claim 4, wherein, The sliding block (3) is fixedly connected with a support column (702), the support column (702) is fixedly connected with the protection plate (7), a limiting table (701) is arranged on the protection plate (7), and the limiting table (701) is slidably connected to the heat dissipation window (101).

6. An electric vehicle charging cable arrangement according to claim 5, wherein, A sealing gasket (1011) corresponding to the position of the limiting table (701) is clamped on the heat dissipation window (101), and a limiting seat (102) for limiting the protection plate (7) is arranged on the cable protection box (1). A clamping unit (9) is arranged between the limiting seat (102) and the protection plate (7), and the clamping unit (9) comprises: An electric push rod (901) is arranged on the limiting seat (102); A clamping block (902) is arranged at the output end of the electric push rod (901); 7. An electric vehicle charging cable arrangement according to claim 6, wherein, A clamping groove (903) is arranged on the protection plate (7), and the clamping block (902) is movably clamped in the clamping groove (903).

8. The electric vehicle charging cable apparatus of claim 1, wherein, A connecting cable (9011) is fixedly connected to the electric push rod (901), a control switch (9012) is arranged on the connecting cable (9011), the control switch (9012) is arranged on the charging head, and the connecting cable (9011) is arranged in the charging cable main body (6). The counterweight assembly (5) comprises: A base (501) is arranged on the sliding block (3); A counterweight block (502) is movably clamped on the base (501); A positioning pin (503) is threadedly connected to the counterweight block (502) and the base (501).

9. The electric vehicle charging cable apparatus of claim 1, wherein, The cable protection box (1) is externally provided with a charging head protection cover (103) for protecting the charging head and a bracket (104) for supporting the bottom of the charging head.

10. A method of using an electric vehicle charging cable arrangement according to any of claims 1-9, characterized in that, The use method comprises the following steps: step S1, when charging the electric vehicle, the operator first holds the charging head and pulls the charging cable body (6) to insert the charging head into the charging interface of the electric vehicle; Step S2, as the charging head is pulled out, the sliding block (3) slides upward on the guide frame (2), and the downward pressure of the movable pulley (4) on the charging cable body (6) keeps the charging cable body (6) in a tensioned state; Step S3, during the sliding of the sliding block (3), the connecting column (802) in the speed control unit (8) slides in the aluminum pipe (801), and the magnetic damping action between the magnet block (803) and the aluminum pipe (801) limits the movement speed of the sliding block (3), preventing the charging cable body (6) from being retracted too fast; Step S4, during the sliding of the sliding block (3), the synchronous belt drives the protective plate (7) to move and opens the opening of the heat dissipation window (101), so that the heat generated by the charging cable body (6) is dissipated; Step S5, when the charging head is inserted into the charging interface of the electric vehicle, press the control switch (9012) to control the output end of the electric push rod (901) to stretch, push the clamping block (902) to be clamped with the clamping groove (903), and then fix the positions of the protective plate (7), the sliding block (3) and the movable pulley (4), so that the charging cable body (6) will not be retracted by tension; Step S6, when the charging is completed, the operator pulls out the charging head from the charging interface of the electric vehicle, and presses the control switch (9012) again to control the output end of the electric push rod (901) to retract, so that the clamping block (902) is detached from the clamping groove (903), and at this time the protective plate (7) and the movable pulley (4) are driven to slide by the sliding block (3), and under the action of the counterweight, the sliding block (3) and the movable pulley (4) drive the charging cable body (6) to automatically retract; Step S7, during the retraction of the charging cable body (6), the speed is controlled again by the speed control unit (8), and at the same time, the protective plate (7) is finally clamped and sealed with the heat dissipation window (101), realizing the closed protection of the charging cable body (6).

Images