A new energy vehicle charging gun that can be used in rainy days, a charging gun control system and a control method

Abstract

The application relates to the field of new energy automobile appliances, in particular to a new energy automobile charging gun that can be used in rainy days, a charging gun control system and a control method. The application specifically comprises a charging gun main body; a connecting ring is detachably installed on the outer wall of the charging gun main body, a water shielding cloth is installed on the outer wall of the connecting ring, a magnetic strip is installed at the end of the water shielding cloth, a rubber strip is installed on the outer wall of the magnetic strip, a flow guide groove vertically penetrating through the magnetic strip is formed on the outer wall of the bottom of the magnetic strip, and a through groove corresponding to the flow guide groove is formed on the bottom of the rubber strip. The application effectively increases the difficulty of rainwater entering the position where the mounting seat and the connecting ring are attached, further improves the sealing performance of the connection between the mounting seat and the connecting ring, prevents a large amount of rainwater from entering the water shielding cloth through the connection position between the mounting seat and the connecting ring and affecting the charging gun main body, and further guarantees the safety of the charging gun main body during use.

Description

Technical Field

[0001] This invention relates to the field of new energy vehicle accessories, specifically to a new energy vehicle charging gun that can be used in rainy weather, a charging gun control system, and a control method. Background Technology

[0002] New energy vehicles refer to automobiles that use unconventional vehicle fuels as their power source and integrate advanced technologies in vehicle power control and drive, resulting in vehicles with advanced technologies, structures, and principles. Currently, the most common new energy vehicles on the market are electric vehicles, which are more energy-efficient and environmentally friendly than fuel vehicles.

[0003] New energy electric vehicles use charging guns when they need to recharge. These charging guns come in portable and fixed types. Fixed charging guns are used in conjunction with charging piles and are mainly used at charging stations and private home charging piles. Portable charging guns are easy to carry. When needed, simply connect the three-prong plug at one end to the corresponding 16A charging port and then connect it to the new energy vehicle to charge it. Portable charging guns are applicable to a wider range of scenarios.

[0004] Although existing charging guns are made of waterproof materials and have waterproof structures or components to give them a certain degree of waterproof performance, under normal circumstances, when it rains while charging outdoors, the waterproof structure or components can prevent rainwater from leaking into the charging position. However, if it rains heavily or the charging gun is old, water may still overflow and enter. For safety reasons, many users do not choose to charge outdoors on rainy days, otherwise, if water seeps into the charging gun, there will be a certain risk in charging the vehicle, which may result in electric leakage and increase the user's mental burden. Moreover, the charging gun will also be corroded by rainwater. However, many communities currently only have open-air parking lots on the ground, and users will need to use new energy electric vehicles in the future, which will pose certain safety hazards.

[0005] Meanwhile, existing waterproof charging guns only improve the waterproofing of the external structure, without considering the impact of these changes on internal charging efficiency. In particular, during charging, the temperature of the existing charging gun continuously rises due to changes in charging power. In rainy weather, increased ambient temperature and humidity further exacerbate moisture absorption. This not only affects the battery life of new energy vehicles but also accelerates the damage and aging of the internal circuitry. Therefore, improvements to existing new energy vehicle charging guns are urgently needed. Summary of the Invention

[0006] Based on this, the purpose of the present invention is to provide a new energy vehicle charging gun, a charging gun control system and a control method that can be used in rainy weather, so as to solve the technical problems mentioned in the background art.

[0007] To achieve the above objectives, the first aspect of the present invention provides the following technical solution: a new energy vehicle charging gun that can be used in rainy weather, comprising a charging gun body, a connecting ring detachably installed on the outer wall of the charging gun body, and a waterproof cloth for protecting the plug at the end of the charging gun body installed on the outer wall of the connecting ring, and a magnetic strip that attracts the car body is installed at the end of the waterproof cloth, a rubber strip is installed on the outer wall of the magnetic strip, and the cross section of the rubber strip is designed to be inclined away from the outside of the magnetic strip, a guide groove that vertically penetrates the magnetic strip is opened on the bottom outer wall of the magnetic strip, and a through groove corresponding to the guide groove is opened at the bottom of the rubber strip.

[0008] The charging gun body has a mounting base that fits against the connecting ring on its outer wall. The connecting ring is made of iron, and the outer wall of the mounting base that fits against the connecting ring is made of magnet. A reinforcing ring is fitted onto the outer wall of the mounting base, and the outer wall of the mounting base fits against the inner wall of the reinforcing ring. The charging gun body is also provided with a disassembly aid for removing the connecting ring.

[0009] By adopting the above technical solution, the waterproof cloth protects the charging gun body during use, reducing the probability of rainwater contacting the charging gun body. Simultaneously, the magnetic strip and rubber strip adhere to the car body, preventing rainwater from flowing through the car body to the charging position, further improving the safety of the charging gun body during use. Furthermore, the guide channel allows the heat generated during use to be discharged outwards, preventing excessive temperature inside the waterproof cloth. The reinforcing ring and rubber ring effectively increase the difficulty of rainwater entering the mounting base and connecting ring contact area, further improving the sealing of the mounting base and connecting ring connection. This prevents a large amount of rainwater from entering the waterproof cloth through the mounting base and connecting ring connection and affecting the charging gun body, further ensuring the safety of the charging gun body during use.

[0010] The present invention is further configured such that the outer wall of the magnetic strip is provided with a plurality of water-gathering grooves, and the water-gathering grooves are connected to the flow-guiding grooves, and a plurality of flow-guiding grooves are provided at the bottom of the magnetic strip.

[0011] By adopting the above technical solution, multiple guide channels can ensure that rainwater in the water collection tank can flow smoothly out of the magnetic strip, while also ensuring that heat in the waterproof cloth can flow smoothly out.

[0012] The present invention is further configured such that the disassembly aid component is an outer support block, and the outer support block is fixedly installed on the outer wall of the connecting ring, and the diameter of the outer support block is larger than the diameter of the connecting ring.

[0013] By adopting the above technical solution, users can easily push the outer support block to disassemble and install the connecting ring.

[0014] The present invention is further configured such that multiple sets of rubber rings are installed at equal intervals on the inner wall of the reinforcing ring, and multiple sealing grooves corresponding to the rubber rings are opened on the outer wall of the mounting base, and the width of the sealing groove is smaller than the diameter of the rubber ring.

[0015] By adopting the above technical solution, the impact of rainwater entering between the reinforcing ring and the mounting base on the charging gun body can be further reduced.

[0016] The present invention is further configured such that the disassembly aid assembly consists of a mounting box, threaded holes, a screw, a top ball, a gear rod, a gear ring, and a support rod. The outer wall of the charging gun body is equipped with a mounting box that is fixedly connected to the outer wall of the mounting base. The outer wall of the mounting base is provided with multiple threaded holes at equal angles, and the mounting box is provided with a screw that is threadedly connected to the threaded holes.

[0017] By adopting the above technical solution, the screw will either be exposed in the threaded hole or retracted into the threaded hole when it rotates, due to the principle of lead screw.

[0018] The invention is further configured such that a top ball for pushing the connecting ring is installed at the end of the screw, and the screw cross-section is T-shaped.

[0019] By adopting the above technical solution, the top ball will squeeze the outer wall of the connecting ring as the screw moves, thereby causing the connecting ring to begin to separate from the mounting base.

[0020] The invention is further configured such that a gear rod is mounted on the other end of the screw, and a gear ring that meshes with the gear rod is rotatably mounted on the mounting box.

[0021] By adopting the above technical solution, it is ensured that the screw can smoothly obtain the power to rotate.

[0022] The invention is further configured such that the length of the gear rod is greater than the length by which the screw moves toward the connecting ring, and when the screw is not in use, the end of the gear rod is in contact with the inner wall of the mounting box.

[0023] By adopting the above technical solution, the length of the gear rod can be guaranteed to prevent it from separating from the gear ring.

[0024] The invention is further configured such that the diameter of the toothed ring is larger than the diameter of the mounting box, and the outer wall of the toothed ring is provided with friction texture.

[0025] By adopting the above technical solution, it is convenient for users to hold the toothed ring and rotate it.

[0026] The invention is further configured such that a plurality of support rods slidably connected to the gear rod are installed at equal angles inside the mounting box, and the length of the support rods is greater than the length of the screw moving toward the connecting ring.

[0027] By adopting the above technical solution, the end of the gear rod away from the screw will always be supported by the support rod.

[0028] The second aspect of this invention provides the following technical solution: a control system for a new energy vehicle charging gun that can be used in rainy weather, specifically including a charging gun port detection unit and a charging environment monitoring unit, wherein:

[0029] The charging gun port detection unit is used to determine whether the charging gun is aligned with the charging port and to display the tilt direction of the charging gun port and the charging port. After the charging gun is fully inserted into the charging port, it switches to the charging environment monitoring unit.

[0030] The charging environment monitoring unit establishes a refined control method for charging strategies to adjust the relationship between the internal temperature and humidity of the charging gun body and the charging rate.

[0031] By adopting the above technical solution, the user's view is not obstructed due to the sealing and blocking of the interface during the use of the charging gun, which leads to complicated adjustment of the charging gun port and the charging port. This improves the ease of use of the car charging gun in the initial connection process.

[0032] The present invention is further configured such that, in the tilt direction of the display charging gun port and the charging port, a plurality of photoelectric sensors are provided at the charging gun port; in the tilt direction of the display charging gun port and the charging port, a plurality of photoelectric sensors are provided at the charging gun port, and the distance value from the charging port to the internal concave and convex structure of the charging port is detected and calculated by the photoelectric sensors, thereby generating the tilt direction of the charging gun port relative to the charging port, and displaying it on the outside of the charging gun body.

[0033] By adopting the above technical solution, users can intuitively view and adjust the charging direction of the charging gun, thereby improving the user's charging efficiency.

[0034] The third aspect of this invention provides the following technical solution: a control method for a new energy vehicle charging gun that can be used in rainy weather, wherein the specific steps of the refined control method for charging strategy include:

[0035] S1. Obtain real-time test data of internal temperature and humidity of the charging gun body and establish a prediction model to obtain the dynamic numerical balance point between internal temperature and humidity of the charging gun body under different charging environments.

[0036] S2. Under the specified charging time and charging period of the charging gun, the obtained dynamic balance point is used as the rated switching point, and the rated switching range is manually defined. In this way, a dynamic adjustment curve is established for the charging power of the charging gun and dynamic adjustment is performed according to the rated switching range.

[0037] S3. During the dynamic adjustment process, a smooth switching strategy is established to smoothly transition between fast charging and slow charging.

[0038] By adopting the above technical solution, the problem of excessively high internal temperature and humidity of the charging gun due to the addition of a protective cover to the outside of the charging gun can be avoided, thereby affecting the charging efficiency. By establishing a dynamic adjustment relationship between temperature, humidity and charging power, the safety and reliability of the charging environment inside the charging gun can be guaranteed.

[0039] The present invention is further configured such that, in the smooth switching strategy:

[0040] During the transition between fast charging and slow charging, the charging voltage remains constant, and the current value is gradually reduced from the beginning of the rated switching range to the end of the rated switching range, so as to reduce it to the rated current value.

[0041] During the transition between slow and fast charging, keep the charging voltage constant, gradually increase the current value from the beginning of the rated switching range to the end of the rated switching range, and then keep the rated current value constant while gradually increasing the voltage value to the rated voltage value.

[0042] The present invention is further configured to establish a linear interpolation calculation between the starting value of the rated switching range and the ending value of the rated switching range, and to monitor abrupt changes in values ​​during the linear interpolation calculation process.

[0043] By adopting the above technical solution, a smooth transition can be achieved during the charging power conversion process, avoiding the impact of charging power fluctuations on the lifespan of the car battery, and further ensuring charging safety.

[0044] In summary, the present invention has the following main beneficial effects:

[0045] 1. This invention incorporates a water-shielding cloth, magnetic strips, rubber strips, a guide channel, a reinforcing ring, and a rubber ring. During use, the water-shielding cloth protects the charging gun body, reducing the probability of rainwater contact. Simultaneously, the magnetic strips and rubber strips adhere to the car's exterior, preventing rainwater from flowing through the exterior to the charging location, further enhancing the safety of the charging gun during use. The guide channel allows heat generated during use to dissipate, preventing excessive temperature buildup inside the water-shielding cloth. The reinforcing ring and rubber ring effectively increase the difficulty of rainwater entering the mounting base and connecting ring connection, further improving the seal between them. This prevents excessive rainwater from entering the water-shielding cloth and affecting the charging gun body, further ensuring the safety of the charger during use.

[0046] 2. This invention, by providing an installation box, threaded hole, screw, top ball, gear rod, gear ring, and support rod, allows the connecting ring to gradually separate from the mounting base simply by rotating the gear ring. This makes disassembling the connecting ring easier and less labor-intensive, and facilitates the user's disassembly, installation, and replacement of the connecting ring.

[0047] 3. Based on the improved charging gun structure, this invention adds refined control and optimization of the charging strategy during the charging process. It dynamically controls environmental factors such as temperature and humidity that significantly affect charging power. When the temperature and humidity exceed the rated values, the charging power is reduced to improve the charging environment. When the temperature and humidity fall below the rated values ​​again, the charging power is increased to maintain charging efficiency. By dynamically adjusting the relationship between environmental conditions and charging power, the invention achieves safe charging of the charging gun on rainy days while further ensuring charging quality. Attached Figure Description

[0048] The accompanying drawings, which form part of this specification, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0049] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0050] Figure 2 For the present invention Figure 1 Enlarged view of point A in the middle;

[0051] Figure 3 This is a schematic diagram of the front structure of the present invention;

[0052] Figure 4 This is a three-dimensional structural diagram of the magnetic strip after a side section of the present invention;

[0053] Figure 5 For the present invention Figure 4 Enlarged view at point B in the middle;

[0054] Figure 6 For the present invention Figure 4 A floor plan;

[0055] Figure 7 For the present invention Figure 6 Enlarged view at point C;

[0056] Figure 8 This is a three-dimensional structural diagram of the connecting ring of the present invention after it has been removed;

[0057] Figure 9 This is a schematic diagram of the planar structure of the magnetic strip according to the second embodiment of the present invention;

[0058] Figure 10 This is a three-dimensional structural diagram of the charging gun body after the connecting ring is removed in the third embodiment of the present invention;

[0059] Figure 11 This is a three-dimensional structural diagram of the mounting box in the third embodiment of the present invention;

[0060] Figure 12 This is an exploded view of a part according to the third embodiment of the present invention.

[0061] In the diagram: 1. Charging gun body; 2. Connecting ring; 3. Waterproof cloth; 4. Magnetic strip; 5. Rubber strip; 6. Water collection tank; 7. Flow guide channel; 8. Through channel; 9. Mounting base; 10. External support block; 11. Reinforcing ring; 12. Rubber ring; 13. Sealing groove; 14. Mounting box; 15. Threaded hole; 16. Screw; 17. Top ball; 18. Gear rod; 19. Gear ring; 20. Support rod. Detailed Implementation

[0062] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0063] The following detailed description is exemplary and intended to provide further detailed explanation of the invention. Unless otherwise specified, all technical terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this invention is for describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention.

[0064] In one embodiment, the first aspect of the present invention provides a new energy vehicle charging gun that can be used in rainy weather, such as... Figure 1 - Figure 8As shown, the device includes a charging gun body 1, with a mounting base 9 installed on the outer wall of the charging gun body 1. A connecting ring 2 is detachably installed on the outer wall of the charging gun body 1, with the outer wall of the connecting ring 2 fitting against the outer wall of the mounting base 9. The connecting ring 2 is made of iron, while the outer wall of the mounting base 9 against which the connecting ring 2 fits is made of magnet. When the connecting ring 2 is in contact with the mounting base 9, it is magnetically attracted to the outer wall of the mounting base 9, thus fixing the position of the connecting ring 2 on the charging gun body 1. A shield is also installed on the outer wall of the connecting ring 2 to protect the plug at the end of the charging gun body 1. The waterproof cloth 3 protects the charging gun body 1 from rain during use, reducing the probability of rainwater contacting it. A magnetic strip 4, attracted to the car's exterior, is installed at the end of the cloth 3. When the charging gun body 1 is inserted into the car's charging port, the magnetic strip 4 adheres to the car's exterior and is attracted by its own magnetism. This also prevents a large amount of rainwater from entering the charging port, effectively reducing the probability of rainwater flowing into the charging port. To improve safety during charging, a rubber strip 5 is installed on the outer wall of the magnetic strip 4. The cross-section of the rubber strip 5 is designed to be inclined away from the outer side of the magnetic strip 4. This ensures that as the magnetic strip 4 moves towards the car body, the rubber strip 5 contacts the car body before the magnetic strip 4. Upon contact with the car body, the rubber strip 5 is compressed, resulting in a better fit between the rubber strip 5 and the car body. This further improves the safety of the charging gun body 1 during use. Additionally, a guide groove 7 is vertically inserted through the magnetic strip 4 on the bottom outer wall, ensuring that the charging gun body 1... The heat generated during use can be discharged outward through the guide groove 7, thus making the space inside the water-proof cloth 3 not completely sealed, preventing the temperature inside the water-proof cloth 3 from becoming too high during use. The bottom of the rubber strip 5 has a through groove 8 corresponding to the guide groove 7, ensuring that the heat can be discharged smoothly from the rubber strip 5. Furthermore, a reinforcing ring 11 is installed on the outer wall of the connecting ring 2 and fitted onto the outer wall of the mounting base 9. At the same time, the outer wall of the mounting base 9 and the inner wall of the reinforcing ring 11 are in close contact, increasing the difficulty for rainwater to enter the position where the mounting base 9 and the connecting ring 2 are in contact, effectively improving the sealing performance of the connection between the mounting base 9 and the connecting ring 2.

[0065] Please see Figure 1 - Figure 4 and Figure 6Multiple water-collecting grooves 6 are provided on the outer wall of the magnetic strip 4. When the magnetic strip 4 is attracted to the car body, if there is water on the car body, the water-collecting grooves 6 will collect and guide the rainwater at the attraction point between the magnetic strip 4 and the car body, further reducing the impact of rainwater on the charging gun body 1. The water-collecting grooves 6 are connected to the guide grooves 7, so that the rainwater in the water-collecting grooves 6 will be guided to the position of the guide grooves 7, and then flow out of the magnetic strip 4 through the guide grooves 7. Multiple guide grooves 7 are provided at the bottom of the magnetic strip 4. Multiple guide grooves 7 can ensure that the rainwater in the water-collecting grooves 6 can flow out of the magnetic strip 4 smoothly, and at the same time, it can also ensure that the heat in the waterproof cloth 3 can flow out smoothly.

[0066] Please see Figure 4 - Figure 8 The charging gun body 1 is also equipped with a disassembly aid for removing the connecting ring 2. The disassembly aid is an outer support block 10. Since the outer support block 10 is fixedly installed on the outer wall of the connecting ring 2, the outer support block 10 moves synchronously with the connecting ring 2. Since the diameter of the outer support block 10 is larger than the diameter of the connecting ring 2 and the mounting base 9, it is convenient for the user to push the outer support block 10. When the user needs to remove the connecting ring 2, he / she can simply push the outer support block 10 to complete the disassembly, which is very convenient.

[0067] Please see Figure 4 - Figure 7 The reinforcing ring 11 has rounded corners at its ends, which reduces the probability of it getting stuck against the corners of the mounting base 9 when it slides towards the mounting base 9. This ensures that the reinforcing ring 11 can be smoothly fitted onto the outer wall of the mounting base 9. At the same time, multiple sets of rubber rings 12 are installed at equal intervals on the inner wall of the reinforcing ring 11, and multiple sealing grooves 13 corresponding to the rubber rings 12 are also opened on the outer wall of the mounting base 9. After the reinforcing ring 11 is fitted onto the outer wall of the mounting base 9, the rubber rings 12 will enter the corresponding sealing grooves 13. However, the width of the sealing groove 13 is smaller than the diameter of the rubber ring 12, so that the rubber ring 12 will be squeezed after entering the sealing groove 13. This makes the sealing between the rubber ring 12 and the sealing groove 13 better, effectively improving the connection sealing between the reinforcing ring 11 and the mounting base 9, and further reducing the impact of rainwater entering between the reinforcing ring 11 and the mounting base 9 on the charging gun body 1.

[0068] Example 2

[0069] A new energy vehicle charging gun that can be used in rainy weather, such as Figure 9As shown, the technical solution and components of this embodiment are basically the same as those of the first embodiment. The same technical parts will not be elaborated here. The difference is that the magnetic strip 4 is designed in a "square" shape, so that the coverage area of the magnetic strip 4 and the water shielding cloth 3 is larger. At the same time, a diversion groove 7 is penetrated and opened on the outer wall of the bottom of the magnetic strip 4, and the length of the diversion groove 7 is the same as the length of the magnetic strip 4, so that the heat in the water shielding cloth 3 can be discharged faster, which is more convenient for heat dissipation. At the same time, in this embodiment, the rubber strip 5 is designed in an inverted U shape, so that the bottom of the diversion groove 7 is directly an open design, which further facilitates the circulation of external air and the air inside the water shielding cloth 3, and further ensures that the heat inside the water shielding cloth 3 can be smoothly discharged.

[0070] Embodiment III

[0071] A new energy vehicle charging gun that can be used in rainy days, as Figure 1 - Figure 12 As shown, the technical solution and components of this embodiment are basically the same as those of the above embodiments. The same technical parts will not be elaborated here. The difference is that the disassembly assistance component consists of an installation box 14, a threaded hole 15, a screw rod 16, a top bead 17, a gear rod 18, a gear ring 19 and a support rod 20. An installation box 14 fixedly connected to the outer wall of the mounting seat 9 is installed on the outer wall of the charging gun body 1. At the same time, a plurality of threaded holes 15 are equiangularly opened on the outer wall of the mounting seat 9, and a screw rod 16 threadedly connected to the threaded hole 15 is provided in the installation box 14. When the screw rod 16 rotates, it will expose or retract into the threaded hole 15 under the action of the screw principle. A top bead 17 for pushing the connecting ring 2 is installed at the end of the screw rod 16. When the screw rod 16 moves towards the connecting ring 2, the top bead 17 at its end will extrude the outer wall of the connecting ring 2 as the screw rod 16 moves, so that the connecting ring 2 starts to separate from the mounting seat 9. Since the top bead 17 can rotate at the end of the screw rod 16, the friction between the top bead 17 and the connecting ring 2 when pushing the connecting ring 2 is effectively reduced. And because the cross section of the screw rod 16 is designed in a T shape, the screw rod 16 cannot continue to rotate after the end of the screw rod 16 exposes a limited length, preventing the screw rod 16 from separating from the threaded hole 15.

[0072] Please refer to Figure 10 - Figure 12A gear rod 18 is mounted on the other end of the screw 16. The screw 16 and the gear rod 18 are fixedly connected, allowing them to move synchronously. A gear ring 19, which meshes with the gear rod 18, is rotatably mounted on the mounting box 14. This allows the user to rotate the gear ring 19, causing the gear rod 18 to rotate, ensuring the screw 16 receives rotational power smoothly. Furthermore, because the length of the gear rod 18 is greater than the length of the screw 16 moving towards the connecting ring 2, the length of the gear rod 18 ensures that it will not separate from the gear ring 19 when the screw 16 moves towards the connecting ring 2. When the user reverses the gear ring 19, the screw 16 pushes the gear rod 18 to reset. When the screw 16 returns to its original position and is no longer in use, the other end of the gear rod 18 will be in contact with the inner wall of the mounting box 14, thus restricting the range of motion of the screw 16. This allows the user to complete the operation by simply rotating the gear ring 19 until it can no longer rotate. Furthermore, because the diameter of the gear ring 19 is much larger than the diameter of the gear rod 18, the user can disassemble the connecting ring 2 and reset the screw 16 without rotating the gear ring 19 a full turn, making the disassembly of the connecting ring 2 more time-saving and labor-saving.

[0073] Please see Figure 10 - Figure 12 The diameter of the toothed ring 19 is larger than that of the mounting box 14, which makes it easier for the user to hold the toothed ring 19 and rotate it. Furthermore, the friction texture on the outer wall of the toothed ring 19 increases the friction between the toothed ring 19 and the user's palm, making it even easier for the user to rotate the toothed ring 19.

[0074] Please see Figure 11 and Figure 12 Multiple support rods 20 are installed at equal angles on the inner wall of the mounting box 14, which are slidably connected to the gear rod 18. This ensures that the end of the gear rod 18 away from the screw 16 is supported by the support rods 20, thereby ensuring that the gear rod 18 can rotate smoothly when the gear ring 19 rotates, and ensuring the stability of the gear rod 18 during use. Furthermore, the length of the support rod 20 is greater than the length of the screw 16 moving towards the connecting ring 2, so that the end of the gear rod 18 will always be supported by the support rod 20.

[0075] The working principle of this invention is as follows: When needed, the charging gun body 1 is inserted into the car charging port. During this process, the magnetic strip 4 will adhere to the car body. Under the action of magnetism, the probability of rainwater flowing into the car charging port can be effectively reduced. Furthermore, during the insertion of the charging gun body 1 into the car charging port, the rubber strip 5 will contact the car body before the magnetic strip 4. As the charging gun body 1 continues to enter the car charging port, and under the pressure of the attraction between the magnetic strip 4 and the car body, the rubber strip 5 is forced to deform, causing it to adhere tightly to the car body. At this time, it will... The magnetic strip 4 provides the first step of protection against rain, and then provides the second step of protection, further preventing rain from affecting the charging operation. This makes the main body 1 of the charging gun easier to use. When rainwater has already adhered to the car body before using the main body 1, the water collection groove 6 on the outer wall of the magnetic strip 4 will store and guide the rainwater on the car body after the magnetic strip 4 is in contact with the car body. This reduces the probability of a large amount of rainwater being squeezed downwards when the magnetic strip 4 is in contact with the car body. At the same time, the guide groove 7 will also guide the rainwater, allowing it to be discharged through the guide groove 7 and the channel 8.

[0076] When using the main body 1 of this charging gun, because the guide groove 7 vertically penetrates the bottom outer wall of the magnetic strip 4, the airflow inside the water-proof cloth 3 can be discharged to the outside through the guide groove 7, so that the heat generated by the main body 1 of the charging gun during use can be discharged to the outside through the guide groove 7, and external cold air can also enter the water-proof cloth 3 through the guide groove 7 to prevent the internal temperature of the water-proof cloth 3 from being too high.

[0077] When the waterproof cloth 3 is no longer needed, it can be removed. At this time, the outer support block 10 can be pulled to make the connecting ring 2 slide away from the mounting base 9 until the connecting ring 2 separates from the charging gun body 1. At this time, the waterproof cloth 3 is removed.

[0078] When it is necessary to remove the waterproof cloth 3, the gear ring 19 can be rotated to drive the gear rod 18 to rotate, causing the screw 16 to push the top ball 17 towards the connecting ring 2 under the action of the threaded hole 15. Under the push of multiple sets of top balls 17, the connecting ring 2 begins to separate from the mounting base 9 until all the rubber rings 12 separate from the sealing groove 13. At this time, the connecting ring 2 will lose its restraint and can be tilted downwards to slide away from the mounting base 9, thus separating it from the charging gun body 1. This method is more labor-saving and safer during disassembly.

[0079] When the waterproof cloth 3 needs to be installed, the connecting ring 2 is placed on the outer wall of the charging gun body 1 and then pushed towards the mounting base 9. During this process, the reinforcing ring 11 will gradually be placed on the outer wall of the mounting base 9, and the rubber ring 12 will be squeezed by the outer wall of the mounting base 9 until the connecting ring 2 is in contact with the outer wall of the mounting base 9. At this time, the connecting ring 2 will be magnetically attracted to the mounting base 9, thus completing the installation of the waterproof cloth 3. At the same time, the rubber ring 12 will also enter the sealing groove 13, increasing the sealing between the reinforcing ring 11 and the mounting base 9, effectively preventing a large amount of rainwater from entering the gap between the connecting ring 2 and the mounting base 9 and affecting the charging operation, further ensuring the safety of subsequent charging.

[0080] In one embodiment, a second aspect of the present invention provides a control system for a new energy vehicle charging gun that can be used in rainy weather, specifically including a charging gun port detection unit and a charging environment monitoring unit, wherein:

[0081] The charging gun port detection unit is used to determine whether the charging gun is aligned with the charging port and to display the tilt direction of the charging gun port relative to the charging port. After the charging gun is fully inserted into the charging port, the system switches to the charging environment monitoring unit. In displaying the tilt direction of the charging gun port relative to the charging port, multiple photoelectric sensors are set at the charging gun port. The photoelectric sensors detect and calculate the distance value from the charging port to the concave and convex structure inside the charging port, thereby generating the tilt direction of the charging gun port relative to the charging port, which is then displayed on the outside of the charging gun body.

[0082] The charging environment monitoring unit establishes a refined control method for charging strategies to adjust the relationship between the internal temperature and humidity of the charging gun body and the charging rate.

[0083] The third aspect of this embodiment provides a control method for a new energy vehicle charging gun that can be used in rainy weather. The specific steps of the refined control method for charging strategy include:

[0084] S1. Obtain real-time test data of internal temperature and humidity of the charging gun body and establish a prediction model to obtain the dynamic numerical balance point between internal temperature and humidity of the charging gun body under different charging environments.

[0085] The electric gun body has a semi-enclosed environment inside. In this invention, by setting a flow channel structure, the heat generated inside the body can be discharged to the outside of the flow channel. Based on this, the prediction model is used to adjust the temperature generated by the residual heat inside the electric gun body, as well as the change in humidity value caused by the increase in temperature in rainy weather.

[0086] In the prediction model, since temperature changes will cause changes in the humidity value inside the electric gun body, the correlation coefficient between temperature and humidity changes is calculated by collecting temperature and humidity change data, thereby establishing a dynamic numerical equilibrium point prediction based on the basic normal distribution.

[0087] S2. Under the specified charging time and charging period of the charging gun, the obtained dynamic balance point is used as the rated switching point, and the rated switching range is manually defined. In this way, a dynamic adjustment curve is established for the charging power of the charging gun and dynamic adjustment is performed according to the rated switching range.

[0088] The charging time is a user-defined charging duration based on the charging environment, and the charging duration is inversely proportional to the charging power. The charging period is divided into peak charging periods and off-peak charging periods, and the average charging rate during peak charging periods is greater than the average charging rate during off-peak charging periods.

[0089] S3. During the dynamic adjustment process, a smooth transition between fast charging and slow charging is achieved by establishing a smooth switching strategy, wherein the smooth switching strategy includes:

[0090] During the transition between fast charging and slow charging, the charging voltage remains constant, and the current value is gradually reduced from the beginning of the rated switching range to the end of the rated switching range, so as to reduce it to the rated current value.

[0091] During the transition between slow and fast charging, keep the charging voltage constant, gradually increase the current value from the beginning of the rated switching range to the end of the rated switching range, and then keep the rated current value constant while gradually increasing the voltage value to the rated voltage value.

[0092] A linear interpolation calculation is established between the starting value and the ending value of the rated switching range, and abrupt numerical changes are monitored during the linear interpolation calculation process.

[0093] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or equivalent to the scope of this invention are included in this invention.

[0094] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0095] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0096] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0097] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A charging gun for new energy vehicles that can be used in rainy weather, characterized in that, Specifically, it includes a charging gun body; wherein, a connecting ring is detachably installed on the outer wall of the charging gun body, and a water-proof cloth is installed on the outer wall of the connecting ring, a magnetic strip is installed at the end of the water-proof cloth, and a rubber strip is installed on the outer wall of the magnetic strip, a guide groove is opened on the bottom outer wall of the magnetic strip to vertically penetrate the magnetic strip, and a through groove corresponding to the guide groove is opened at the bottom of the rubber strip. The charging gun body has a mounting base that fits against the connecting ring on its outer wall, and a reinforcing ring that is sleeved on the outer wall of the mounting base is installed on the outer wall of the connecting ring. The outer wall of the mounting base fits against the inner wall of the reinforcing ring. The charging gun body is also provided with a disassembly aid component. The connecting ring is made of iron, and the outer wall of the mounting base that fits against the connecting ring is made of magnet. The disassembly aid assembly includes a mounting box, threaded holes, a screw, a top ball, a gear rod, a gear ring, and support rods. The outer wall of the charging gun body is fitted with a mounting box that is fixedly connected to the outer wall of the mounting base. The outer wall of the mounting base has multiple threaded holes at equal angles. The mounting box contains a screw that is threadedly connected to the threaded holes. A top ball for pushing the connecting ring is installed at one end of the screw. A gear rod is installed at the other end of the screw. A gear ring that meshes with the gear rod is rotatably mounted on the mounting box. Multiple support rods that are slidably connected to the gear rod are installed at equal angles inside the mounting box.

2. The new energy vehicle charging gun that can be used in rainy weather according to claim 1, characterized in that, The cross-section of the rubber strip is designed to be inclined away from the outside of the magnetic strip.

3. A control system for a new energy vehicle charging gun usable in rainy weather as described in claim 1, characterized in that, Specifically, it includes a charging gun port detection unit and a charging environment monitoring unit, wherein: The charging gun port detection unit is used to determine whether the charging gun is aligned with the charging port and to display the tilt direction of the charging gun port and the charging port. After the charging gun is fully inserted into the charging port, it switches to the charging environment monitoring unit. The charging environment monitoring unit establishes a refined control method for charging strategies to adjust the relationship between the internal temperature and humidity of the charging gun body and the charging rate.

4. The control system for the new energy vehicle charging gun that can be used in rainy weather according to claim 3, characterized in that, In the display of the tilt direction between the charging gun port and the charging port, multiple photoelectric sensors are set at the charging gun port; in the display of the tilt direction between the charging gun port and the charging port, multiple photoelectric sensors are set at the charging gun port, and the distance value from the charging port to the internal concave and convex structure of the charging port is detected and calculated by the photoelectric sensors, thereby generating the tilt direction of the charging gun port relative to the charging port, and displaying it on the outside of the charging gun body.

5. A control method used in a control system for a new energy vehicle charging gun usable in rainy weather as described in claim 3, characterized in that, The specific steps of the refined control method for the charging strategy include: S1. Obtain real-time test data of internal temperature and humidity of the charging gun body and establish a prediction model to obtain the dynamic numerical balance point between internal temperature and humidity of the charging gun body under different charging environments. S2. Under the specified charging time and charging period of the charging gun, the obtained dynamic balance point is used as the rated switching point, and the rated switching range is manually defined. In this way, a dynamic adjustment curve is established for the charging power of the charging gun and dynamic adjustment is performed according to the rated switching range. S3. During the dynamic adjustment process, a smooth switching strategy is established to smoothly transition between fast charging and slow charging.

6. The control method for a new energy vehicle charging gun that can be used in rainy weather according to claim 5, characterized in that, In the smooth switching strategy: During the transition between fast charging and slow charging, the charging voltage remains constant, and the current value is gradually reduced from the beginning of the rated switching range to the end of the rated switching range, so as to reduce it to the rated current value. During the transition between slow and fast charging, keep the charging voltage constant, gradually increase the current value from the beginning of the rated switching range to the end of the rated switching range, and then keep the rated current value constant while gradually increasing the voltage value to the rated voltage value.

7. The control method for a new energy vehicle charging gun that can be used in rainy weather according to claim 6, characterized in that, A linear interpolation calculation is established between the starting value and the ending value of the rated switching range, and abrupt numerical changes are monitored during the linear interpolation calculation process.

Images