Electronic locks, electric vehicle charging inlets and vehicles

Abstract

An electronic lock, an electric vehicle charging inlet, and an automobile, comprising: a driving device that generates a rotational motion, a first locking rod connected to the driving device via a first transmission mechanism, the first locking rod being configured to convert the rotational motion of the driving device into the motion of the first locking rod, and a second locking rod connected to the driving device via a second transmission mechanism, the second locking rod being configured to convert the rotational motion of the driving device into the motion of the second locking rod. The embodiment of the present application is connected to the driving device by providing two transmission mechanisms, and one driving device can move two locking rods simultaneously, allowing the electronic lock to lock the DC charging gun and the AC charging gun separately, simplifying the structure of the electronic lock and making it convenient to use without increasing the manufacturing cost of the electronic lock.

Description

[Technical Field]

[0001] The present application relates to the technical field of electric vehicles, and in particular to electronic locks, electric vehicle charging inlets and vehicles. [Background technology]

[0002] (Related Applications) This application claims priority to a Chinese patent application filed on September 2, 2021, with application number 202111028847.7, and the contents disclosed in that patent application are incorporated herein by reference.

[0003] The pure electric vehicle in the new energy vehicle category refers to a vehicle that uses a single battery as its energy storage power source, and the battery supplies electrical energy to the motor to drive the vehicle. The rechargeable batteries for pure electric vehicles mainly include lead-acid batteries, nickel-cadmium batteries, nickel-metal hydride batteries, and lithium-ion batteries, which provide power to the electric vehicle, and the pure electric vehicle uses the battery to store electrical energy and drive the motor to operate normally, and the battery of the pure electric vehicle is mainly charged by a new energy vehicle charging gun.

[0004] In conventional charging technology, when a charging inlet has multiple charging interfaces, such as both a DC and an AC charging interface, different charging guns can be used for charging. Current technical solutions all use multiple driving devices to control the locking connection between the multiple charging interfaces and the charging guns, and each driving device drives a corresponding locking rod to lock the charging gun into the corresponding charging inlet for charging, which results in problems such as a large number of driving device parts and high manufacturing costs.

[0005] Therefore, in the technical field of new energy vehicles, there is a need for a technology that can overcome the shortcomings of the prior art and solve problems such as the large number of drive unit parts and high production costs by synchronously controlling the interlocking devices of multiple locking rods and using one drive unit to simultaneously control multiple locking rods and lock them to the charging gun. Summary of the Invention [Problem to be solved by the invention]

[0006] The embodiments of the present application provide an electronic lock, an electric vehicle charging inlet, and a vehicle, thereby solving the problem that existing electronic locks can only lock AC charging guns or DC charging guns. [Means for solving the problem]

[0007] According to a first embodiment of the present application, there is provided an electronic lock comprising: a drive device that generates a rotational motion; a first locking rod connected to the drive device via a first transmission mechanism, the first transmission mechanism configured to convert the rotational motion of the drive device into motion of the first locking rod; and a second locking rod connected to the drive device via a second transmission mechanism, the second transmission mechanism configured to convert the rotational motion of the drive device into motion of the second locking rod.

[0008] According to a second embodiment of the present application, there is provided an electric vehicle charging inlet equipped with the electronic lock of the first embodiment, in which one of the first locking rod and the second locking rod locks a DC charging gun and the other locks an AC charging gun.

[0009] According to a third embodiment of the present application, there is provided a vehicle equipped with the electronic lock of the first embodiment.

[0010] The electronic lock, electric vehicle charging inlet, and vehicle according to the embodiments of the present application have the following features and advantages. 1. In the embodiment of the present application, two transmission mechanisms are connected to the drive unit, and only one drive unit is required to drive two locking rods for simultaneous linear movement. The electronic lock can lock both DC and AC charging guns, which simplifies the structure of the electronic lock and makes it easier to use without increasing the manufacturing cost of the electronic lock. 2. In the embodiment of the present application, a speed reducing mechanism is provided to increase the torque, so that the first locking rod and the second locking rod can be driven to move linearly with sufficient driving force. 3. In the embodiment of the present application, the first transmission mechanism is provided with a rack and pinion mechanism, and the second transmission mechanism is provided with a cam mechanism, thereby simplifying the structure and achieving smooth transmission. 4. In the embodiment of the present application, the first transmission mechanism and the rotating rod are connected by a reverse assembly, the first locking rod can be positioned perpendicular to the rotating rod, and the first locking rod and the rotating rod are spaced apart, preventing interference between the components. [Brief explanation of the drawings]

[0011] The drawings are for facilitating understanding of the embodiments of the present application, constitute a part of the specification, illustrate embodiments of the present application, and together with the written part, explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings from these drawings without any inventive step.

[0012] [Figure 1] FIG. 1 is a schematic diagram showing one side of the internal structure of an electronic lock according to an embodiment of the present application. [Figure 2] FIG. 2 is a schematic diagram showing the other side of the internal structure of the electronic lock in FIG. [Figure 3] FIG. 3 is a schematic diagram showing that the rotating rod in FIG. 1 is connected to the second gear, the cam, and the first reverse gear. [Figure 4] FIG. 4 is a schematic diagram showing that the slide groove is provided on the second locking rod in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0013] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described in more detail below with reference to the drawings. Here, the outlined embodiments of the present application and the description thereof are for the purpose of interpreting the present application, and the present application is not limited thereto.

[0014] Among these, the adjective or adverbial modifiers "above" and "below," "top" and "base," "inside" and "outside" are merely used to provide relative reference among multiple groups and do not limit a specific direction. On the other hand, the terms "first," "second," etc. are merely used to state purpose and do not indicate or imply relative importance or the number of components of the indication, so that a feature qualified by "first," "second," etc. may explicitly or implicitly include one or more of such features.

[0015] In the embodiments of the present application, unless otherwise specified, the term "connection" should be broadly understood, for example, it may be fixedly connected, detachably connected, directly connected, or connected via a medium, and those skilled in the art should understand the specific meaning of the above term in the present invention according to the specific circumstances.

[0016] As shown in FIG. 1 , a first embodiment of the present application provides an electronic lock, which includes a driver 1, a first locking rod 2, and a second locking rod 3. For example, the first locking rod 2 locks a DC charging gun, and the second locking rod 3 locks an AC charging gun. The driver 1 generates rotational motion, and the first locking rod 2 is connected to the driver 1 by a first transmission mechanism 4. The first transmission mechanism 4 is configured to convert the rotational motion of the driver 1 into motion (e.g., linear motion) of the first locking rod 2, thereby locking or unlocking the DC charging gun. The second locking rod 3 is connected to the driver 1 by a second transmission mechanism 5. The second transmission mechanism 5 is configured to convert the rotational motion of the driver 1 into motion (e.g., linear motion) of the second locking rod 3, thereby locking or unlocking the AC charging gun.

[0017] The embodiment of the present application is connected to the drive unit by two transmission mechanisms, so that only one drive unit can drive two locking rods to move linearly simultaneously. This allows the electronic lock to lock both DC and AC charging guns, simplifies the structure of the electronic lock without increasing the manufacturing cost of the electronic lock, and is convenient to use.

[0018] Furthermore, the motion forms of the first locking rod 2 are extension and contraction, translation, rotation, swing, bending, or twisting. The motion forms of the second locking rod 3 are extension and contraction, translation, rotation, swing, bending, or twisting. The driving device 1 drives and moves the two locking rods, and the motion form can be selected arbitrarily according to the actual usage environment as long as it can control the two locking rods simultaneously.

[0019] Furthermore, the first locking rod 2 and second locking rod 3 are inserted into locking holes on the charging gun to secure the charging gun. One important purpose of this embodiment is to lock up the charging gun, and each locking rod can be inserted into the locking holes on a different charging gun to lock it up. This prevents the charging gun from falling off the charging socket during charging, which can prevent charging from being interrupted, and also prevents the risk of electric shock or injury from a falling charging gun.

[0020] Furthermore, the first locking rod 2 has one or more shapes selected from the group consisting of a cylinder, a truncated cylinder, a cone, an elliptical cylinder, an elliptical truncated cylinder, an elliptical cone, a polygonal prism, a polygonal truncated cylinder, and a polygonal pyramid. The second locking rod 3 has one or more shapes selected from the group consisting of a cylinder, a truncated cylinder, a cone, an elliptical cylinder, an elliptical truncated cylinder, an elliptical cone, a polygonal prism, a polygonal truncated cylinder, and a polygonal pyramid. The shape can be selected based on the shape of the locking hole of the charging gun during actual use.

[0021] Furthermore, the length of the first locking rod 2 may be 5 mm to 55 mm, and the length of the second locking rod 3 may be 5 mm to 55 mm. If the first locking rod 2 and the second locking rod 3 are too short, the locking operation cannot be completed, and if they are too long, they will interfere with the charging gun and make abnormal noises. Therefore, the inventors selected first locking rods 2 and second locking rods 3 of different lengths and tested them, and determined that the devices were defective if they could not perform lockup or made abnormal noises. The test results are shown in Table 1. Table 1 shows the effect of different locking rod lengths on the lockup operation.

[0022] [Table 1]

[0023] As can be seen from Table 1, if the length of the locking rod is less than 5 mm, the locking rod will not be able to lock up the charging gun, and if the length of the locking rod is more than 55 mm, the locking rod will interfere with the charging gun and generate abnormal noise. Therefore, it is desirable that the length of the first locking rod 2 be between 5 mm and 55 mm, and the length of the second locking rod 3 be between 5 mm and 55 mm.

[0024] Furthermore, the maximum stroke of the first locking rod 2 is 5 mm to 36 mm, and the stroke of the second locking rod 3 is 5 mm to 36 mm.

[0025] Similarly, if the maximum stroke of the first locking rod 2 and the second locking rod 3 is too short, the locking operation for the charging gun cannot be completed, and if it is too long, the charging gun will interfere and generate abnormal noise. Therefore, the inventors selected first locking rod 2 and second locking rod 3 with different maximum strokes and tested them, and determined that the rods that could not lock up or that generated abnormal noise were defective. The test results are shown in Table 2. Table 2 shows the effect of different maximum strokes of the locking rods on the locking operation.

[0026] [Table 2]

[0027] As can be seen from Table 2, if the maximum stroke of the locking rod is less than 5 mm, lockup is not possible, and if the maximum stroke of the locking rod is more than 36 mm, abnormal noise will occur. Therefore, it is desirable that the maximum stroke of the first locking rod 2 be 5 mm to 36 mm, and that of the second locking rod 3 be 5 mm to 36 mm.

[0028] In some embodiments, the first transmission mechanism 4 is a rack and pinion mechanism, a link mechanism, a cam mechanism, or a crank-slider mechanism, which converts the rotational motion of the drive device 1 into the linear motion of the first locking rod 2. That is, in this embodiment, the motion of the first locking rod 2 is linear.

[0029] In some embodiments, the second transmission mechanism 5 is a rack and pinion mechanism, a link mechanism, a cam mechanism, or a crank-slider mechanism, which converts the rotational movement of the drive device 1 into the linear movement of the second locking rod 3. That is, in this embodiment, the movement of the second locking rod 3 is linear.

[0030] In some embodiments, as shown in FIG. 1, the electronic lock further includes a rotating rod 6, which is connected to the driving device 1, the first transmission mechanism 4, and the second transmission mechanism 5, respectively, to transmit the rotational motion of the driving device 1 to the first transmission mechanism 4 and the second transmission mechanism 5, and has a simple structure and is easy to install.

[0031] Specifically, for example, as shown in FIG. 1, both ends of the rotating rod 6 are connected to the first transmission mechanism 4 and the second transmission mechanism 5, respectively, and the portion between the both ends of the rotating rod 6 is connected to the drive device 1.

[0032] In a specific embodiment, as shown in Figure 1, the electronic lock further includes a speed reducing mechanism 7, and the rotating rod 6 is connected to the driving device 1 through the speed reducing mechanism 7. In this embodiment, the speed reducing mechanism 7 is provided to increase the torque, and sufficient driving force is provided to drive the first locking rod 2 and the second locking rod 3 to perform linear movement.

[0033] 1, the reduction mechanism 7 is a two-stage reduction mechanism, which includes a first worm 71 connected to the output shaft of the driving device 1, a first gear 72 meshing with the first worm 71, a second worm 73 connected to the output shaft of the first gear 72, and a second gear 74 meshing with the second worm 73, and the second gear 74 is coaxially connected to the rotating rod 6. In this technical solution, the two-stage reduction can further increase the torque.

[0034] The present application is not limited thereto, and in other embodiments, the two-stage reduction mechanism may be a gear reduction mechanism in which four gears gradually mesh.

[0035] In the example of FIG. 1, teeth are not provided on the entire outer peripheral surface in the circumferential direction of the second gear 74, but only on some continuous side surfaces. By providing teeth in this manner, the first locking rod 2 and the second locking rod 3 only need to move a limited distance, so the second gear 74 does not need to rotate 360°, but only needs to be rotated a limited angle in the forward or reverse direction. Since there is no need to provide teeth on the entire outer peripheral surface of the second gear 74, the structure of the second gear 74 is simplified, making it easier to process and reducing processing costs.

[0036] In some embodiments, the transmission ratio between the driving device 1 and the rotating rod 6 is 5 / 1 to 90 / 1. If the transmission ratio is too large, it takes a long time to operate, and it is difficult to control accurately, which may cause noise.

[0037] Therefore, the inventors conducted tests with different transmission ratios and observed the number of times the lock-up or open operation was completed per minute, and determined that a failure occurred if the number was less than 40 or if an abnormal noise was generated. The results are shown in Table 3. Table 3 shows the effect of different transmission ratios on the speed of an electronic lock.

[0038] [Table 3]

[0039] As can be seen from Table 3, if the transmission ratio is too small, the electronic lock will complete less than 40 lock-up or open operations per minute, which is defective. At the same time, if the transmission ratio exceeds 90 / 1, the electronic lock will make abnormal noises and be defective. Therefore, it is desirable that the transmission ratio between the drive unit 1 and the rotating rod 6 be 5 / 1 to 90 / 1.

[0040] 1, in some embodiments, the first transmission mechanism 4 is a rack and pinion mechanism, which includes a driving gear 41 and a driven rack 42 that mesh with each other. The driven rack 42 is connected to the first locking rod 2, and the rotating rod 6 transmits the rotational motion of the driving device 1 to the driving gear 41, which then drives the driven rack 42 to rotate, thereby linearly moving the first locking rod 2. This embodiment transmits power using a rack and pinion mechanism, which has a simple structure and smooth transmission.

[0041] Furthermore, in this embodiment, as shown in FIG. 1 , the rack and pinion mechanism is connected to the rotating rod 6 by a reverse assembly 8, and the reverse assembly 8 includes a first reverse gear 81, a second reverse gear 82, and a link 83, the first reverse gear 81 is connected coaxially to the rotating rod 6, the second reverse gear 82 is disposed perpendicular to the first reverse gear 81 and meshes with the first reverse gear 81, for example, the first reverse gear 81 and the second reverse gear 82 are both bevel gears, and the second reverse gear 82 is connected coaxially to the driving gear 41 by a link 83, and the link 83, the rotating rod 6, and the first locking rod 2 are perpendicular to each other, so that the first locking rod 2 is disposed perpendicular to the rotating rod 6, and the first locking rod 2 and the rotating rod 6 are separated in terms of spatial position, thereby preventing interference between the members.

[0042] 1, the rotating rod 6 is arranged in the left-right direction, the link 83 is arranged in the up-down direction, the first locking rod 2 is arranged in the front-rear direction, the two-stage reduction mechanism 7 is arranged in the front-rear direction, and the drive unit 1 is arranged in the left-right direction, so that the spaces between each component are appropriately arranged. When the drive unit 1 rotates in the forward or reverse direction, the first locking rod 2 moves forward or backward.

[0043] 1 and 2, in some embodiments, the second transmission mechanism 5 is a cam mechanism, which includes a cam 51 (see FIG. 3) fixed to the rotating rod 6 and a slide groove 52 (see FIG. 4) provided in the second locking rod 3, the cam 51 is located within the slide groove 52, the inner wall surface of which is in sliding contact with the outer surface of the cam 51 and is configured to have a skidway of a predetermined shape, the rotating rod 6 transmits the rotational motion of the driving device 1 to the cam 51, and the cam 51 rotates to slide into the skidway and linearly move the second locking rod 3. This embodiment transmits power using a cam mechanism, which simplifies the structure and makes installation easier.

[0044] Furthermore, in this embodiment, the skidway has two planes, which are located on opposite sides of the cam 51 in the linear movement direction of the second locking rod 3. The two planes are perpendicular to the linear movement direction of the second locking rod 3, i.e., the two planes are parallel to each other. When the cam 51 rotates to one of the planes and makes sliding contact, it causes the second locking rod 3 to move linearly in a first direction, and when the cam 51 rotates to the other plane and makes sliding contact, it causes the second locking rod 3 to move linearly in a second direction opposite to the first direction.

[0045] 1, the cam 51 is attached to the outer wall of the rotating rod 6, and the slide groove 52 on the second locking rod 3 faces the cam 51 to accommodate the cam 51, and the second locking rod 3 is arranged in the vertical direction. When the driving device 1 rotates in the forward or reverse direction, the second locking rod 3 moves up and down.

[0046] In this embodiment, the predetermined shape is a U-shape, a rectangle, a parallelogram, a polygon, a trapezoid, a rhombus, or an oval. Taking the U-shape as an example, the skidway has two flat surfaces and one arc surface, and the arc surface serves as a transition surface connecting the two flat surfaces, allowing the cam 51 to slide continuously between the two flat surfaces.

[0047] The present application is not limited thereto, and the predetermined shape may be other shapes. For example, as shown in FIG. 4, the skidway has one gradually connecting plane, one arcuate plane, and one inclined plane, the plane is perpendicular to the linear movement direction of the second locking rod 3, and the inclined plane is inclined at a certain angle (e.g., an acute angle) with respect to the linear movement direction of the second locking rod 3 and the plane.

[0048] Furthermore, in this embodiment, the electronic lock also includes a housing (not shown), which includes a first guide hole arranged along the linear movement direction of the first locking rod 2 and a second guide hole arranged along the linear movement direction of the second locking rod 3, with the first locking rod 2 passing through the first guide hole and the second locking rod 3 passing through the second guide hole. The first guide hole can limit the offset of the first locking rod 2, and the second guide hole can limit the offset of the second locking rod 3.

[0049] In this embodiment, both ends of the rotating rod 6 are connected to the first transmission mechanism 4 and the second transmission mechanism 5, respectively, and the portion between the two ends of the rotating rod 6 is connected to the driving device 1. The output end of the driving device drives the rotation of the rotating rod 6, thereby driving the movement of the first transmission mechanism 4 and the second transmission mechanism 5.

[0050] In some embodiments, as shown in FIG. 1, the rotating rod 6, the first locking rod 2 and the second locking rod 3 are perpendicular to each other, so as to avoid interference when the two locking rods move.

[0051] In some embodiments, as shown in FIG. 1, the drive unit 1 is a rotary motor. In some embodiments, the output power of the driver 1 is 0.35W to 5.56W.

[0052] The output power of the drive unit 1 determines the operating speed of the interlocking device. The higher the power, the faster the interlocking device completes its operation; the lower the power, the slower the interlocking device completes its operation. Furthermore, the rotational torque of the transmission shaft 20 may be insufficient, preventing the first locking rod 2 and the second locking rod 3 from completing their lockup operation. To test the effect of output power on the operation of the interlocking device, the inventors conducted the following related tests. Using drive units 1 with different output powers and interlocking devices with the same structure, each drive unit 1 was operated continuously for one minute, and the number of times the interlocking device completed its operation was recorded. A count of 40 or more was considered acceptable, and a count of less than 40 was considered unacceptable. If the interlocking device made abnormal noise during operation, it was also considered unacceptable. The results are shown in Table 4. Table 4 shows the effect of different output powers on the interlocking device speed and abnormal noise.

[0053] [Table 4]

[0054] As shown in Table 4, when the output power of the drive unit 1 is less than 0.35W, the number of times the interlocking device completes opening and closing per minute is less than 40, which is too slow and unsuitable, so the minimum power of the drive unit 1 is preferably 0.35W. When the output power of the drive unit 1 is more than 5.56W, the interlocking device enters a plateau in speed due to the overall design, with no obvious increase and abnormal noise. Therefore, the output power of the drive unit 1 is preferably between 0.35W and 5.56W. Specifically, the output power of the drive unit 1 is preferably 0.9W, 0.96W, 1W, 1.08W, etc.

[0055] In some embodiments, the output torque of the driving device 1 of the electronic lock is 2.25 N·mm to 9.85 N·mm.

[0056] The torque of the drive unit 1 determines the strength of the force applied to the locking rod. Taking a rotary motor as an example, if the torque is insufficient, the locking rod cannot be driven to complete the opening and closing operation of the electronic lock. To verify the effect of rotary motors with different torques on the opening and closing of the electronic lock, the inventors conducted the following related tests. Using rotary motors with different torques, the other structures of the electronic lock were configured the same. Rotary motors that could normally drive the first transmission mechanism 4 to operate were determined to be acceptable, while those that could not were determined to be defective. At the same time, if the electronic lock produced abnormal noise during operation, it was also determined to be defective. The test results are shown in Table 5. Table 5 shows whether rotary motors with different torques could normally drive the first transmission mechanism 4 to operate.

[0057] [Table 5]

[0058] As shown in Table 5, if the torque of the different rotary motors is less than 2.25 N·mm, they will not be able to drive the first transmission mechanism 4 for operation, so it is desirable that the minimum torque of the rotary motor is 2.25 N·mm. If the torque exceeds 9.85 N·mm, the first transmission mechanism 4 can be driven for operation, but the torque is too large and will cause abnormal noise when the electronic lock is activated, so it is desirable that the torque of the drive device be between 2.25 N·mm and 9.85 N·mm. Specifically, it may be 3.50 N·mm or 4.00 N·mm.

[0059] In some embodiments, the driving device 1 has an output shaft, and the rotation angle of the rotating rod 6 is 15° to 92°.

[0060] The rotation angle of the rotating rod 6 also determines the stroke between the first locking rod 2 and the second locking rod 3. If the rotation angle of the rotating rod 6 is too small, the stroke between the first locking rod 2 and the second locking rod 3 is insufficient, and the lockup operation cannot be completed. If the rotation angle of the rotating rod 6 is too large, the rotating rod 6 still outputs rotational force after the first locking rod 2 and the second locking rod 3 are extended to their operating positions, which is likely to cause damage to the interlocking device. To verify the effect of the rotation angle of the rotating rod 6 on the interlocking device, the inventor conducted the following test. Drives 1 with different rotation angles of the rotating rod 6 were prepared, but the other structures of the interlocking device were identical. If the stroke between the first locking rod 2 and the second locking rod 3 could complete the lockup operation, it was deemed acceptable; otherwise, it was deemed unacceptable. A larger rotation angle means a larger stroke between the first locking rod 2 and the second locking rod 3, and the size of each connecting component must be increased accordingly, which may cause collisions with other components in the interlocking device and affect the use of the interlocking device. The rotation angle of the rotating rod 6 in this situation was also determined to be poor. The test results are shown in Table 6. Table 6 shows the impact of different rotation angle ranges of the rotating rod on the interlocking device function and whether it will collide with other devices.

[0061] [Table 6]

[0062] As can be seen from Table 6, if the rotation angle of the rotating rod 6 is less than 15°, the stroke between the first locking rod 2 and the second locking rod 3 is insufficient to complete the lockup operation. If the rotation angle of the rotating rod 6 exceeds 92°, unnecessary contact occurs between the components of the interlocking device, which is determined to be defective. Therefore, the rotation angle of the output end of the rotating rod 6 is preferably 15° to 92°. Specifically, the rotation angle of the output end of the rotating rod 6 is preferably 50°, 60°, 70°, or 80°.

[0063] In some embodiments, the material of the rotating rod comprises a metal or a non-metal.

[0064] Furthermore, the material of the transmission shaft includes carbon steel, all copper, pure copper, aluminum clad zinc, aluminum clad copper or zinc alloy, which has better strength and toughness and can better meet the requirements of the transmission shaft.

[0065] Furthermore, the material of the transmission shaft may include one or more of polyvinyl chloride, polyethylene, polyamide, polytetrafluoroethylene, tetrafluoroethylene-hexafluoropropylene copolymer, ethylene-tetrafluoroethylene copolymer, polypropylene, polyvinylidene fluoride, polyurethane, polyethylene terephthalic acid, polyurethane elastomer, styrene block copolymer, perfluoroalkoxyalkane, chlorinated polyethylene, polyphenylene sulfide, polystyrene, cross-linked polyolefin, ethylene-vinyl acetate copolymer, cross-linked polyethylene, polycarbonate, polysulfone, polyphenylene ether, polyester, phenolic resin, urea-formaldehyde, styrene-acrylonitrile copolymer, polymethacrylate, and polyoxymethylene resin.

[0066] Taking polyoxymethylene, polyester, polycarbonate, polyamide, polyphenylene sulfide and polytetrafluoroethylene as examples, polyoxymethylene is a smooth, glossy, hard and dense material with a light yellow or white color and can be used for a long time in the temperature range of -40℃ to 100℃. Its wear resistance and self-lubricating properties are superior to most engineering plastics, and it also has good oil resistance and peroxide resistance.

[0067] Polyester is generally formed by polymerizing dimethyl terephthalate, 1,4-butylene glycol, and polybutanol, and the chain portion has hard segments and soft segments, making it a thermoplastic elastomer.

[0068] Polycarbonate has high strength, elastic modulus, and impact strength, good fatigue resistance and dimensional stability, little creep, high transparency, and free dyeability.

[0069] Polyamides are widely used to replace metals such as copper because they are non-toxic, lightweight, and have excellent mechanical strength, wear resistance, and good corrosion resistance.

[0070] Polyphenylene sulfide is a new type of high-performance thermoplastic resin that has advantages such as high mechanical strength, high temperature resistance, chemical resistance, flame retardancy, thermal stability, and excellent electrical properties.

[0071] Polytetrafluoroethylene is characterized by its resistance to acids and alkalis, its resistance to various organic solvents, its almost insolubility in all solvents, and its resistance to high temperatures.

[0072] The material of the transmission shaft includes glass fiber.

[0073] The material of the first locking rod 2 and the second locking rod 3 can be one or more of polyvinyl chloride, polyethylene, polyamide, polytetrafluoroethylene, tetrafluoroethylene-hexafluoropropylene copolymer, ethylene-tetrafluoroethylene copolymer, polypropylene, polyvinylidene fluoride, polyurethane, polyethylene terephthalate, polyurethane elastomer, styrene block copolymer, perfluoroalkoxyalkane, chlorinated polyethylene, polyphenylene sulfide, polystyrene, cross-linked polyolefin, ethylene-vinyl acetate copolymer, cross-linked polyethylene, polycarbonate, polysulfone, polyphenylene ether, polyester, phenolic resin, urea-formaldehyde, styrene-acrylonitrile copolymer, polymethacrylate, and polyoxymethylene resin.

[0074] For example, polycarbonate and polyamide are colorless and transparent, have heat resistance, impact resistance, and flame retardancy at the BI level, and have good mechanical properties within common operating temperatures. Compared to polymethyl methacrylate with the same properties, polycarbonate has better impact resistance, a high refractive index, good processability, and high flame retardancy even without additives.

[0075] Polyamide is non-toxic, lightweight, and has excellent mechanical strength, wear resistance, and good corrosion resistance, making it widely used in industries such as machinery, chemicals, instruments, and automobiles to manufacture bearings, gears, pump blades, and other parts, replacing metals such as copper. The first locking rod 2 and the second locking rod 3 are required to have high strength, high temperature resistance, wear resistance, and other properties. Therefore, it is preferable to use polycarbonate or polyamide as the material for the first locking rod 2 and the second locking rod 3.

[0076] The slide groove 52 has a wear-resistant plating layer. The material of the wear-resistant plating layer can be ceramic, alloy, oxide, or fluoroplastic. Preferably, the wear-resistant plating layer can be one or more of gold, silver, nickel, tin, tin-lead alloy, zinc, silver-antimony alloy, palladium, palladium-nickel alloy, graphite silver, hard silver, graphene silver, and silver-gold-zirconium alloy.

[0077] The corrosion resistance time in Table 7 below was tested as follows. The slide groove 52 was placed in a salt spray test box, and salt water was sprayed at various positions on the slide groove 52. Every 20 hours, the slide groove 52 was removed and washed to observe the surface corrosion. This constituted one cycle. The test was stopped when the surface corrosion area of ​​the slide groove 52 exceeded 10% of the total area, and the number of cycles at that time was recorded. In this example, a test result of less than 80 cycles was deemed unsuccessful. The number of cycles in Table 7 was tested as follows. The slide groove 52 was fixed to a test table, and the test was stopped every 100 contact cycles to observe the damage to the wear-resistant plating layer of the slide groove 52. If scratches were found, exposing the material of the slide groove 52 itself, the test was stopped and the number of cycles at that time was recorded. In this example, a test result of less than 8,000 cycles was deemed unsuccessful. Table 7 shows the effect of different plating layer materials on the slide groove's number of cycles and corrosion resistance.

[0078] [Table 7]

[0079] As can be seen from Table 7, when gold, silver, silver-antimony alloy, palladium, palladium-nickel alloy, graphite silver, hard silver, graphene silver, and silver-gold-zirconium alloy were used as the plating layer material, the experimental results far exceeded the standard values ​​and the performance was stable. When nickel, tin, tin-lead alloy, and zinc were used as the plating layer material, the experimental results also met the requirements. Therefore, it is preferable to use one or more of gold, silver, nickel, tin, tin-lead alloy, zinc, hard silver, silver-antimony alloy, palladium, palladium-nickel alloy, graphite silver, graphene silver, and silver-gold-zirconium alloy as the plating layer material.

[0080] The electric vehicle charging inlet according to the second embodiment of the present application is equipped with the electronic lock according to the first embodiment (see FIG. 1), with one of the first locking rod 2 and the second locking rod 3 locking the DC charging gun and the other locking the AC charging gun. The electronic lock has the same structure, operating principle, and beneficial effects as the electronic lock according to the first embodiment, so a redundant description will be omitted here.

[0081] The automobile according to the third embodiment of the present application is equipped with the electronic lock according to the first embodiment, which has the same structure, operating principle, and beneficial effects as the electronic lock according to the first embodiment, and therefore, redundant description will be omitted here.

[0082] Although specific embodiments of the present application have been described above, these are merely illustrative, and the scope of protection of the present application is limited by the following claims. Those skilled in the art may make multiple changes or amendments to these embodiments without departing from the principles and essential spirit of the present application, and it should be understood that all such changes and amendments fall within the scope of protection of the present application. [Explanation of symbols]

[0083] 1. Drive unit 2 First locking rod 3 Second locking rod 4 First transmission mechanism 5 Second transmission mechanism 6 Rotating Rod 7 Reduction mechanism 8 Reverse Assembly 41 Drive gear 42 Driven rack 51 Cam 52 Slide groove 71 First Worm 72 First Gear 73 Second Worm 74 Second Gear 81 First reverse gear 82 Second reverse gear 83 Links

Claims

1. An electronic lock, a drive unit for generating rotational motion; a first locking rod connected to the drive device via a first transmission mechanism, the first transmission mechanism includes a first locking rod arranged to convert rotational motion of the drive device into motion of the first locking rod; a second locking rod connected to the drive device via a second transmission mechanism, the second transmission mechanism being arranged to convert rotational motion of the drive device into motion of the second locking rod; a rotating rod connected to the driving device, the first transmission mechanism, and the second transmission mechanism, respectively, for transmitting the rotational motion of the driving device to the first transmission mechanism and the second transmission mechanism; both ends of the rotating rod are connected to the first transmission mechanism and the second transmission mechanism, respectively, and a portion of the rotating rod between the both ends is connected to the driving device; the rotating rod, the first locking rod and the second locking rod are perpendicular to each other; The rotation angle of the rotating rod is 15° to 92°; Electronic lock.

2. The electronic lock according to claim 1, wherein the first locking rod has a motion form of extension / contraction, translation, rotation, swing, bending, or twisting.

3. The electronic lock according to claim 1, wherein the motion of the second locking rod is extension, contraction, translation, rotation, swing, bending, or twisting.

4. The electronic lock according to claim 1 , wherein the first locking rod and the second locking rod are inserted into locking holes of the charging gun to fix the charging gun.

5. The electronic lock according to claim 1 , wherein the shape of the first locking rod is one or more of a cylinder, a circular truncated cylinder, a cone, an elliptical cylinder, an elliptical truncated cylinder, an elliptical cone, a polygonal prism, a polygonal truncated cylinder, and a polygonal pyramid.

6. The electronic lock according to claim 1, wherein the second locking rod has one or more shapes selected from the group consisting of a cylinder, a truncated cylinder, a cone, an elliptical cylinder, an elliptical truncated elliptical cone, a polygonal prism, a polygonal truncated elliptical cone, and a polygonal pyramid.

7. The electronic lock according to claim 1, wherein the length of the first locking rod is 5 mm to 55 mm, and the length of the second locking rod is 5 mm to 55 mm.

8. The electronic lock according to claim 1, wherein the stroke of the first locking rod is 5 mm to 36 mm, and the stroke of the second locking rod is 5 mm to 36 mm.

9. The electronic lock according to claim 1 , wherein the first transmission mechanism is a rack-and-pinion mechanism, a link mechanism, a cam mechanism, or a crank-slider mechanism.

10. The electronic lock according to claim 1 , wherein the second transmission mechanism is a rack-and-pinion mechanism, a link mechanism, a cam mechanism, or a crank-slider mechanism.

11. The electronic lock according to claim 1 , further comprising a speed reducing mechanism, wherein the rotating rod is connected to the drive device by the speed reducing mechanism.

12. the reduction mechanism is a two-stage reduction mechanism, The two-stage reduction mechanism is a first worm connected to an output shaft of the drive device; a first gear that meshes with the first worm; a second worm connected to an output shaft of the first gear; a second gear meshing with the second worm, The electronic lock according to claim 11, wherein the second gear is coaxially connected to the rotating rod.

13. The electronic lock according to claim 11, wherein the transmission ratio between the driving device and the rotating rod is 5 / 1 to 90 / 1.

14. The electronic lock of claim 1, wherein the first transmission mechanism is a rack and pinion mechanism, the rack and pinion mechanism including a meshing drive gear and a driven rack, the driven rack being connected to the first locking rod, the rotating rod transmitting the rotational motion of the drive device to the drive gear, and the drive gear rotatingly driving the driven rack to move the first locking rod linearly.

15. the rack and pinion mechanism is connected to the rotating rod by a reverse assembly; The reverse assembly includes: a first reverse gear coaxially connected to the rotating rod; a second reverse gear disposed perpendicular to the first reverse gear and meshing with the first reverse gear, The electronic lock according to claim 14, wherein the second reverse gear is coaxially connected to the drive gear by a link, and the link, the rotating rod and the first locking rod are perpendicular to each other.

16. The electronic lock of claim 1, wherein the second transmission mechanism is a cam mechanism, the cam mechanism including a cam fixed to the rotating rod and a slide groove provided in the second locking rod, the cam being positioned within the slide groove, the inner wall surface of the slide groove having a predetermined shape and configured as a skidway that makes sliding contact with the outer contour of the cam, the rotating rod transmitting the rotational movement of the drive unit to the cam, and the cam rotating and slidingly engaging with the skidway to move the second locking rod linearly.

17. The electronic lock of claim 16, wherein the skidway includes two planes, the two planes being located on opposite sides of the cam in the linear motion direction of the second locking rod, and the two planes being perpendicular to the linear motion direction of the second locking rod.

18. The electronic lock according to claim 16, wherein the predetermined shape is a U-shape, a rectangle, a parallelogram, a polygon, a trapezoid, a rhombus, or an oval.

19. 2. The electronic lock of claim 1, comprising a housing, the housing comprising a first guide hole arranged along the movement direction of the first locking rod and a second guide hole arranged along the movement direction of the second locking rod, the first locking rod passing through the first guide hole, and the second locking rod passing through the second guide hole.

20. The electronic lock according to claim 1, wherein the output power of the driving device is 0.35W to 5.56W.

21. The electronic lock according to claim 1, wherein the drive device includes an output shaft, and the output torque of the output shaft is 2.25 N·mm to 9.85 N·mm.

22. 2. The electronic lock of claim 1, wherein the material of the rotating rod includes one or more of polyvinyl chloride, polyethylene, polyamide, polytetrafluoroethylene, tetrafluoroethylene-hexafluoropropylene copolymer, ethylene-tetrafluoroethylene copolymer, polypropylene, polyvinylidene fluoride, polyurethane, polyethyleneterephthalic acid, polyurethane elastomer, styrene block copolymer, perfluoroalkoxyalkane, chlorinated polyethylene, polyphenylene sulfide, polystyrene, cross-linked polyolefin, ethylene-vinyl acetate copolymer, cross-linked polyethylene, polycarbonate, polysulfone, polyphenylene ether, polyester, phenolic resin, urea-formaldehyde, styrene-acrylonitrile copolymer, polymethacrylate, and polyoxymethylene resin.

23. The material of the first locking rod and the second locking rod may be one or more of polyvinyl chloride, polyethylene, polyamide, polytetrafluoroethylene, tetrafluoroethylene-hexafluoropropylene copolymer, ethylene-tetrafluoroethylene copolymer, polypropylene, polyvinylidene fluoride, polyurethane, polyethylene terephthalic acid, polyurethane elastomer, styrene block copolymer, perfluoroalkoxyalkane, chlorinated polyethylene, polyphenylene sulfide, polystyrene, cross-linked polyolefin, ethylene-vinyl acetate copolymer, cross-linked polyethylene, polycarbonate, polysulfone, polyphenylene ether, polyester, phenolic resin, urea-formaldehyde, styrene-acrylonitrile copolymer, polymethacrylate, and polyoxymethylene resin. The electronic lock of claim 1 .

24. The electronic lock according to claim 16, wherein the slide groove is provided with a wear-resistant plating layer.

25. 25. An electric vehicle charging inlet comprising the electronic lock of any one of claims 1 to 24, wherein one of the first locking rod and the second locking rod locks a DC charging gun and the other locks an AC charging gun.

26. A motor vehicle comprising an electronic lock according to any one of claims 1 to 24.

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