An electronic lock, an electric vehicle charging station and a motor vehicle

Abstract

The application provides an electronic lock, an electric vehicle charging seat and a motor vehicle, comprising: a driving device for generating rotary motion; a first lock rod connected with the driving device through a first transmission mechanism, the first transmission mechanism being configured to convert the rotary motion of the driving device into the motion of the first lock rod; and a second lock rod connected with the driving device through a second transmission mechanism, the second transmission mechanism being configured to convert the rotary motion of the driving device into the motion of the second lock rod. The application is provided with two transmission mechanisms connected with the driving device, so that only one driving device is needed to drive the two lock rods to move simultaneously, the electronic lock can lock both the direct-current charging gun and the alternating-current charging gun, the manufacturing cost of the electronic lock is not increased, and the electronic lock is simple in structure and convenient to use.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric vehicles, and in particular to an electronic lock, an electric vehicle charging seat and a motor vehicle. BACKGROUND

[0002] The pure electric vehicle in the new energy vehicle is a vehicle that uses a single battery as a power storage source. It provides power to the motor through the battery to drive the motor to run, thereby propelling the vehicle to travel. The rechargeable battery of the pure electric vehicle mainly includes lead-acid battery, nickel-cadmium battery, nickel-hydrogen battery and lithium-ion battery, etc. These batteries can provide power for electric vehicles. At the same time, the pure electric vehicle also stores electric energy through the battery to drive the motor to run, so that the vehicle can travel normally. The battery of the pure electric vehicle is mainly charged by the new energy vehicle charging gun.

[0003] In the existing charging technology, when the charging seat has multiple charging interfaces, such as a direct current charging interface and an alternating current charging interface, different charging guns can be used for charging. The current technical solution is to use multiple driving devices to control the locking connection of multiple charging interfaces and charging guns. Each driving device drives a corresponding lock rod to lock and connect the charging gun on the corresponding charging seat for charging. This solution has the problems of a large number of driving device parts and high manufacturing cost.

[0004] Therefore, there is an urgent need in the field of new energy vehicle technology for a linkage device that can simultaneously control multiple lock rods to lock and connect the charging gun using one driving device, thereby overcoming the defects of the prior art and solving the problems of a large number of driving device parts and high manufacturing cost. SUMMARY

[0005] The purpose of the present application is to provide an electronic lock, an electric vehicle charging seat and a motor vehicle to solve the problem that the existing electronic lock can only be used to lock an alternating current charging gun or a direct current charging gun.

[0006] To achieve the above-mentioned purpose, the present application provides an electronic lock, comprising: a driving device for generating rotary motion; a first lock rod connected to the driving device through a first transmission mechanism, the first transmission mechanism being configured to convert the rotary motion of the driving device into the motion of the first lock rod; a second lock rod connected to the driving device through a second transmission mechanism, the second transmission mechanism being configured to convert the rotary motion of the driving device into the motion of the second lock rod.

[0007] The electronic lock as described above, the motion mode of the first lock rod is extension and contraction, translation, rotation, swing, bending or twisting.

[0008] The electronic lock as described above, the motion mode of the second lock rod is extension and contraction, translation, rotation, swing, bending or twisting.

[0009] The electronic lock as claimed in any one of the preceding claims, wherein the first lock rod and the second lock rod are configured to be inserted into a charging gun lock hole to secure the charging gun.

[0010] The electronic lock as claimed in any one of the preceding claims, wherein the first lock rod is in the shape of one or more of a cylinder, a circular truncated cone, a circular cone, an elliptical cylinder, an elliptical truncated cone, an elliptical cone, a polygonal cylinder, a polygonal truncated cone, and a polygonal cone.

[0011] The electronic lock as claimed in any one of the preceding claims, wherein the second lock rod is in the shape of one or more of a cylinder, a circular truncated cone, a circular cone, an elliptical cylinder, an elliptical truncated cone, an elliptical cone, a polygonal cylinder, a polygonal truncated cone, and a polygonal cone.

[0012] The electronic lock as claimed in any one of the preceding claims, wherein the first lock rod has a length of 5mm to 55mm and the second lock rod has a length of 5mm to 55mm.

[0013] The electronic lock as claimed in any one of the preceding claims, wherein the first lock rod has a stroke of 5mm to 36mm and the second lock rod has a stroke of 5mm to 36mm.

[0014] The electronic lock as claimed in any one of the preceding claims, wherein the first transmission mechanism is a rack and pinion mechanism, a connecting rod mechanism, a cam mechanism, or a crank slider mechanism.

[0015] The electronic lock as claimed in any one of the preceding claims, wherein the second transmission mechanism is a rack and pinion mechanism, a connecting rod mechanism, a cam mechanism, or a crank slider mechanism.

[0016] The electronic lock as claimed in any one of the preceding claims, further comprising a rotating rod connected to the driving device, the first transmission mechanism, and the second transmission mechanism, respectively, to transmit the rotating motion of the driving device to the first transmission mechanism and the second transmission mechanism, and a speed reduction mechanism through which the rotating rod is connected to the driving device.

[0017] The electronic lock as claimed in any one of the preceding claims, wherein the speed reduction mechanism is a two-stage speed reduction mechanism comprising a first worm connected to an output shaft of the driving device, a first gear meshing with the first worm, a second worm connected to an output shaft of the first gear, and a second gear meshing with the second worm, the second gear being coaxially connected to the rotating rod.

[0018] The electronic lock as claimed in any one of the preceding claims, wherein the transmission ratio of the driving device to the rotating rod is 5 / 1 to 90 / 1.

[0019] The electronic lock as claimed in any one of the preceding claims, wherein the first transmission mechanism is a rack and pinion mechanism, the rack and pinion mechanism comprising a driving pinion and a driven rack engaged with each other, the driven rack being connected to the first lock rod, the rotating rod transmitting the rotational movement of the driving device to the driving pinion, the driving pinion driving the driven rack to move linearly by rotating.

[0020] The electronic lock as claimed in any one of the preceding claims, wherein the rack and pinion mechanism is connected to the rotating rod through a reversing assembly, the reversing assembly comprising a first reversing pinion coaxially connected to the rotating rod, a second reversing pinion arranged perpendicularly to the first reversing pinion and engaged with the first reversing pinion, the second reversing pinion being coaxially connected to the driving pinion through a connecting rod, the connecting rod, the rotating rod and the first lock rod being perpendicular to each other in pairs.

[0021] The electronic lock as claimed in any one of the preceding claims, wherein the second transmission mechanism is a cam mechanism, the cam mechanism comprising a cam fixed on the rotating rod and a sliding groove arranged on the second lock rod, the cam being located in the sliding groove, an inner wall surface of the sliding groove being configured as a slide way having a preset shape and being in sliding contact with an outer contour of the cam, the rotating rod transmitting the rotational movement of the driving device to the cam, the cam being in sliding fit with the slide way by rotating to push the second lock rod to move linearly.

[0022] The electronic lock as claimed in any one of the preceding claims, wherein the slide way comprises two planes, the two planes being located on opposite sides of the cam in the linear movement direction of the second lock rod, and the two planes being perpendicular to the linear movement direction of the second lock rod, respectively.

[0023] The electronic lock as claimed in any one of the preceding claims, wherein the preset shape is U-shaped, rectangular, parallelogram-shaped, polygonal, trapezoidal, diamond-shaped or long-circular.

[0024] The electronic lock as claimed in any one of the preceding claims, comprising a housing, the housing having a first guide hole arranged along the movement direction of the first lock rod and a second guide hole arranged along the movement direction of the second lock rod, the first lock rod passing through the first guide hole and the second lock rod passing through the second guide hole.

[0025] The electronic lock as claimed in any one of the preceding claims, wherein both ends of the rotating rod are connected to the first transmission mechanism and the second transmission mechanism, respectively, and a part between the both ends of the rotating rod is connected to the driving device.

[0026] The electronic lock as claimed in any one of the preceding claims, wherein the rotating rod, the first lock rod and the second lock rod are perpendicular to each other in pairs.

[0027] The electronic lock as claimed in any one of the preceding claims, wherein the driving device is an electric motor.

[0028] The electronic lock as claimed in any one of the preceding claims, wherein the output power of the driving device is 0.35W-5.56W.

[0029] The electronic lock as claimed in any one of the preceding claims, wherein the driving device has an output shaft, and the output torque of the output shaft is 2.25N·mm-9.85N·mm.

[0030] The electronic lock as claimed in any one of the preceding claims, wherein the rotation angle of the rotating rod is 15°-92°.

[0031] The electronic lock as claimed in any one of the preceding claims, wherein the material of the rotating rod comprises metal or non-metal.

[0032] The electronic lock as claimed in any one of the preceding claims, wherein the material of the rotating rod comprises carbon steel, full copper, pure copper, aluminum-zinc clad, aluminum-copper clad or zinc alloy.

[0033] The electronic lock as claimed in any one of the preceding claims, wherein the material of the rotating rod comprises one or more of polyvinyl chloride, polyethylene, polyamide, polytetrafluoroethylene, tetrafluoroethylene / hexafluoropropylene copolymer, ethylene / tetrafluoroethylene copolymer, polypropylene, polyvinylidene fluoride, polyurethane, polyterephthalic acid, polyurethane elastomer, styrene block copolymer, perfluoroalkoxy alkane, chlorinated polyethylene, polyphenylene sulfide, polystyrene, crosslinked polyolefin, ethylene / vinyl acetate copolymer, crosslinked polyethylene, polycarbonate, polysulfone, polyphenylene ether, polyester, phenolic resin, urea-formaldehyde, styrene-acrylonitrile copolymer, polymethacrylate, polyformaldehyde resin.

[0034] The electronic lock as claimed in any one of the preceding claims, wherein the material of the rotating rod comprises glass fiber.

[0035] The electronic lock as claimed in any one of the preceding claims, wherein the material of the first and second lock rods comprises one or more of polyvinyl chloride, polyethylene, polyamide, polytetrafluoroethylene, tetrafluoroethylene / hexafluoropropylene copolymer, ethylene / tetrafluoroethylene copolymer, polypropylene, polyvinylidene fluoride, polyurethane, polyterephthalic acid, polyurethane elastomer, styrene block copolymer, perfluoroalkoxy alkane, chlorinated polyethylene, polyphenylene sulfide, polystyrene, crosslinked polyolefin, ethylene / vinyl acetate copolymer, crosslinked polyethylene, polycarbonate, polysulfone, polyphenylene ether, polyester, phenolic resin, urea-formaldehyde, styrene-acrylonitrile copolymer, polymethacrylate, polyformaldehyde resin.

[0036] The electronic lock as claimed in any one of the preceding claims, wherein the sliding groove has a wear-resistant plating layer.

[0037] The electronic lock as claimed in any one of the preceding claims, wherein the material of the wear-resistant plating layer comprises ceramic, alloy, oxide or fluoroplastic.

[0038] The wear-resistant plating layer includes 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.

[0039] The application also provides an electric vehicle charging seat comprising the electronic lock, one of the first lock rod and the second lock rod is used to lock a direct current charging gun and the other is used to lock an alternating current charging gun.

[0040] The application also provides a motor vehicle comprising the electronic lock.

[0041] The electronic lock, the electric vehicle charging seat and the motor vehicle have the following characteristics and advantages:

[0042] 1、The electronic lock of the application is connected with two transmission mechanisms and a driving device, only one driving device is needed to drive two lock rods to move linearly at the same time, the electronic lock can lock both direct current charging guns and alternating current charging guns, and the manufacturing cost of the electronic lock is not increased, the structure of the electronic lock is simple, and the electronic lock is convenient to use.

[0043] 2、The electronic lock of the application is provided with a speed reduction mechanism, the torque can be increased to provide sufficient driving force to drive the first lock rod and the second lock rod to move linearly.

[0044] 3、The first transmission mechanism of the electronic lock is a gear and rack mechanism, and the second transmission mechanism is a cam mechanism, the structure is simple, and the transmission is stable.

[0045] 4、The first lock rod of the electronic lock is arranged perpendicularly to the rotating rod through the reversing assembly connecting the first transmission mechanism and the rotating rod, and the first lock rod and the rotating rod are spaced apart in the spatial position, so that interference between components is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0046] The following drawings are only intended to illustrate and explain the application, and do not limit the scope of the application. Among them:

[0047] Figure 1 is a schematic view of one view of the internal structure of the electronic lock of one embodiment of the application;

[0048] Figure 2 is Figure 1 is a schematic view of another view of the internal structure of the electronic lock in the embodiment;

[0049] Figure 3 is Figure 1 is a schematic view of the connection of the rotating rod, the second gear, the cam and the first reversing gear in the embodiment;

[0050] Figure 4 is Figure 1 is a schematic view of the slide groove arranged on the second lock rod in the embodiment.

[0051] Explanation of main element reference numerals:

[0052] 1, driving device; 2, first locking rod; 3, second locking rod;

[0053] 4, first transmission mechanism; 41, driving gear; 42, driven rack;

[0054] 5, second transmission mechanism; 51, cam; 52, sliding groove; 6, rotating rod;

[0055] 7, speed reduction mechanism; 71, first worm; 72, first gear; 73, second worm; 74, second gear;

[0056] 8, reversing assembly; 81, first reversing gear; 82, second reversing gear; 83, connecting rod. DETAILED DESCRIPTION

[0057] In order to have a clearer understanding of the technical features, objectives and effects of the present application, the specific embodiments of the present application will be described with reference to the accompanying drawings.

[0058] Among them, the use of adjectival or adverbial modifiers "upper" and "lower", "top" and "bottom", "inner" and "outer" is only for the convenience of relative reference between multiple groups of terms, and is not any specific direction limitation of the modified terms. In addition, the terms "first", "second", etc. are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features, so the features with "first", "second", etc. can be explicitly or implicitly include one or more features.

[0059] In the description of the present application, unless otherwise specified, the term "connection" should be broadly understood, for example, it can be fixed connection, can be detachable connection, can be direct connection, can be indirect connection through intermediate medium, and the specific meaning of the above-mentioned term in the patent can be understood according to the specific circumstances by those skilled in the art.

[0060] Unless the direction indicated by the single definition, the up, down, front, back, left, right and other directions mentioned in this paper are based on the up, down, front, back, left, right and other directions in the accompanying drawings, which are explained here. Figure 1

[0061] Embodiment one

[0062] As Figure 1 ​As shown, the present application provides an electronic lock, comprising a driving device 1, a first lock rod 2 and a second lock rod 3, for example, the first lock rod 2 is used to lock the DC charging gun, the second lock rod 3 is used to lock the AC charging gun, the driving device 1 is used to generate rotary motion, the first lock rod 2 is connected with the driving device 1 through a first transmission mechanism 4, the first transmission mechanism 4 is configured to convert the rotary motion of the driving device 1 into the motion (for example, linear motion) of the first lock rod 2, so that the first lock rod 2 completes the locking or unlocking action of the DC charging gun; the second lock rod 3 is connected with the driving device 1 through a second transmission mechanism 5, the second transmission mechanism 5 is configured to convert the rotary motion of the driving device 1 into the motion (for example, linear motion) of the second lock rod 3, so that the second lock rod 3 completes the locking or unlocking action of the AC charging gun.

[0063] The present application sets two transmission mechanisms connected with the driving device, only one driving device is needed to drive two lock rods to move linearly at the same time, which can realize the locking of the DC charging gun and the AC charging gun, and will not increase the manufacturing cost of the electronic lock, the structure of the electronic lock is simple, and the electronic lock is convenient to use.

[0064] Further, the movement mode of the first lock rod 2 is stretching, translation, rotation, swinging, bending or twisting. The movement mode of the second lock rod 3 is stretching, translation, rotation, swinging, bending or twisting. The driving device 1 drives the movement of the two lock rods, and the movement mode can be selected according to the actual use environment, as long as the simultaneous control of the two lock rods can be realized.

[0065] Further, the first lock rod 2 and the second lock rod 3 are used to be inserted into the charging gun lock hole for fixing the charging gun. An important purpose of the present application is to lock the charging gun, each lock rod can be inserted into the lock hole of different charging gun for locking, which prevents the charging gun from falling off from the charging socket during charging, so that the automobile charging cannot be carried out, in addition, the falling off of the live charging gun also has the risk of electric shock injury.

[0066] Further, the shape of the first lock rod 2 is one or more of cylinder, circular truncated cone, circular cone, elliptical cylinder, elliptical truncated cone, elliptical cone, multi-prism, multi-prism truncated cone and multi-prism cone. The shape of the second lock rod 3 is one or more of cylinder, circular truncated cone, circular cone, elliptical cylinder, elliptical truncated cone, elliptical cone, multi-prism, multi-prism truncated cone and multi-prism cone. The shape can be selected according to the shape of the charging gun lock hole in actual use.

[0067] Further, the length of the first lock rod 2 is 5mm-55mm, and the length of the second lock rod 3 is 5mm-55mm.

[0068] If the first locking rod 2 and the second locking rod 3 are too short, the locking work cannot be completed, and if the first locking rod 2 and the second locking rod 3 are too long, interference with the charging gun will occur and abnormal sound will be generated. Therefore, the inventor has selected the first locking rod 2 and the second locking rod 3 with different lengths for testing, and the test results are shown in Table 1.

[0069] Table 1: Influence of different lengths of locking rods on locking work

[0070] Lock rod length (mm) 4 5 8 11 16 21 28 39 47 52 55 56 Locking ability No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Whether abnormal sound No No No No No No No No No No No Yes

[0071] From Table 1, when the length of the locking rod is less than 5 mm, the locking rod cannot lock the charging gun, and when the length of the locking rod is greater than 55 mm, the locking rod will interfere with the charging gun and abnormal sound will occur. Therefore, the inventor selects the length of the first locking rod 2 to be 5 mm to 55 mm, and the length of the second locking rod 3 to be 5 mm to 55 mm.

[0072] Further, 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.

[0073] Similarly, if the maximum stroke of the first locking rod 2 and the second locking rod 3 is too short, the work of locking the charging gun cannot be completed, and if the maximum stroke of the first locking rod 2 and the second locking rod 3 is too long, interference with the charging gun will occur and abnormal sound will be generated. Therefore, the inventor has selected the first locking rod 2 and the second locking rod 3 with different maximum strokes for testing, and the test results are shown in Table 2.

[0074] Table 2: Influence of different maximum strokes of locking rods on locking work

[0075] Maximum stroke (mm) 4 5 8 10 12 15 19 23 28 32 36 38 Locking ability No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Whether abnormal sound No No No No No No No No No No No Yes

[0076] From Table 2, when the maximum stroke of the locking rod is less than 5 mm, it cannot be locked, and when the maximum stroke of the locking rod is greater than 36 mm, abnormal sound will occur. Therefore, the inventor selects the maximum stroke of the first locking rod 2 to be 5 mm to 36 mm, and the maximum stroke of the second locking rod 3 to be 5 mm to 36 mm.

[0077] In some embodiments, the first transmission mechanism 4 is a gear rack mechanism, a connecting rod mechanism, a cam mechanism or a crank slider mechanism to convert the rotary motion of the driving device 1 into the linear motion of the first locking rod 2, that is, the motion of the first locking rod 2 in this embodiment is linear motion.

[0078] In some embodiments, the second transmission mechanism 5 is a gear rack mechanism, a connecting rod mechanism, a cam mechanism or a crank slider mechanism to convert the rotary motion of the driving device 1 into the linear motion of the second locking rod 3, that is, the motion of the second locking rod 3 in this embodiment is linear motion.

[0079] In some embodiments, asFigure 1 As shown, the electronic lock further comprises a rotating rod 6, which is connected with the driving device 1, the first transmission mechanism 4 and the second transmission mechanism 5 respectively, so as to transmit the rotating motion of the driving device 1 to the first transmission mechanism 4 and the second transmission mechanism 5, which is simple in structure and convenient for assembly.

[0080] Specifically, for example, as shown in Figure 1 As shown, the two ends of the rotating rod 6 are connected with the first transmission mechanism 4 and the second transmission mechanism 5 respectively, and the part between the two ends of the rotating rod 6 is connected with the driving device 1.

[0081] In a specific embodiment, as shown in Figure 1 As shown, the electronic lock further comprises a speed reduction mechanism 7, and the rotating rod 6 is connected with the driving device 1 through the speed reduction mechanism 7. In this embodiment, the torque can be increased by setting the speed reduction mechanism 7, so as to provide sufficient driving force to drive the first lock rod 2 and the second lock rod 3 to move linearly.

[0082] In a preferred technical solution, as shown in Figure 1 The speed reduction mechanism 7 is a two-stage speed reduction mechanism, which comprises a first worm 71 connected with the output shaft of the driving device 1, a first gear 72 meshing with the first worm 71, a second worm 73 connected with 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 with the rotating rod 6. In this solution, the torque can be further increased by two-stage speed reduction.

[0083] However, the present application is not limited thereto, and in other embodiments, the two-stage speed reduction mechanism can also be a gear speed reduction mechanism in which four gears are sequentially meshed.

[0084] In Figure 1 In the example, only a part of the continuous side surface is provided with teeth in the circumferential direction of the second gear 74, rather than a circle of teeth on the entire outer circumferential surface. The reason for this arrangement is that the first lock rod 2 and the second lock rod 3 only need to move a limited length, so the second gear 74 only needs to rotate a limited angle in the forward or reverse direction, without rotating 360°. Therefore, it is not necessary to provide teeth on the entire outer circumferential surface of the second gear 74, thereby simplifying the structure of the second gear 74, facilitating processing and reducing processing cost.

[0085] In some embodiments, the transmission ratio of the driving device 1 to the rotating rod 6 is 5 / 1-90 / 1. Too large transmission ratio requires more corresponding time, and inaccurate control is prone to abnormal noise.

[0086] Therefore, the inventor selected different transmission ratios for testing, observed the number of times of locking or unlocking operations completed within 1 minute, and less than 40 times was unqualified, and abnormal noise also was unqualified. The results are shown in Table 3.

[0087] Table 3: Influence of different transmission ratios on the speed of the electronic lock

[0088] Transmission ratio 4 / 1 5 / 1 8 / 1 28 / 1 42 / 1 78 / 1 90 / 1 95 / 1 Completion times 38 40 47 52 55 58 61 63 Whether abnormal sound No No No No No No No Yes

[0089] As can be seen from Table 3, when the transmission ratio is too small, the electronic lock completes less than 40 locking or unlocking actions in 1 minute, so it is unqualified. When the transmission ratio is greater than 90 / 1, the electronic lock makes abnormal noise, which is also unqualified. Therefore, the inventor selects the transmission ratio of the driving device 1 to the rotating rod 6 to be 5 / 1-90 / 1.

[0090] In some embodiments, as shown in Figure 1 , the first transmission mechanism 4 is a gear-rack mechanism, which includes a driving gear 41 and a driven rack 42 engaged with each other, the driven rack 42 being connected with the first lock rod 2, the rotating rod 6 transmitting the rotating motion of the driving device 1 to the driving gear 41, the driving gear 41 driving the first lock rod 2 to move linearly by rotating the driven rack 42. This embodiment adopts the gear-rack mechanism to transmit power, which is simple in structure and stable in transmission.

[0091] In this embodiment, further, as shown in Figure 1 , the gear-rack mechanism is connected with the rotating rod 6 through a reversing assembly 8, the reversing assembly 8 including a first reversing gear 81, a second reversing gear 82 and a connecting rod 83, the first reversing gear 81 being coaxially connected with the rotating rod 6, the second reversing gear 82 being arranged perpendicularly to the first reversing gear 81 and engaged with the first reversing gear 81, for example, the first reversing gear 81 and the second reversing gear 82 are bevel gears, the second reversing gear 82 being coaxially connected with the driving gear 41 through the connecting rod 83, the connecting rod 83, the rotating rod 6 and the first lock rod 2 being perpendicular to each other, so that the first lock rod 2 is arranged perpendicularly to the rotating rod 6 and spaced apart from the rotating rod 6 in spatial position, avoiding interference between components.

[0092] In Figure 1 the example, the rotating rod 6 is arranged along the left-right direction, the connecting rod 83 is arranged along the up-down direction, the first lock rod 2 is arranged along the front-rear direction, the second-stage speed reduction mechanism 7 is arranged along the front-rear direction, and the driving device 1 is arranged along the left-right direction, the spatial arrangement of the components being reasonable. When the driving device 1 rotates in the forward or reverse direction, the first lock rod 2 moves forward or backward.

[0093] In some embodiments, as shown in Figure 1 , Figure 2 , the second transmission mechanism 5 is a cam mechanism, which includes a cam 51 (as shown in Figure 3 ) fixed on the rotating rod 6 and a sliding groove 52 (as shown in Figure 4As shown in FIG. 5, the cam 51 is located in the sliding groove 52, the inner wall surface of the sliding groove 52 is configured as a slide with a preset shape in sliding contact with the outer contour of the cam 51, the rotating rod 6 transmits the rotating motion of the driving device 1 to the cam 51, and the cam 51 is in sliding fit with the slide through rotation to push the second lock rod 3 to linear motion. The embodiment adopts a cam mechanism to transmit power, which is simple in structure and convenient to install.

[0094] In the embodiment, further, the slide includes two planes, the two planes are located on opposite sides of the cam 51 in the linear motion direction of the second lock rod 3, and the two planes are respectively perpendicular to the linear motion direction of the second lock rod 3, that is, the two planes are parallel to each other, when the cam 51 rotates to be in sliding contact with one of the two planes, the second lock rod 3 is driven to linearly move in a first direction, and when the cam 51 rotates to be in sliding contact with the other plane, the second lock rod 3 is driven to linearly move in a second direction opposite to the first direction.

[0095] In Figure 1 the example shown in FIG. 5, the cam 51 is sleeved on the outer wall of the rotating rod 6, the sliding groove 52 on the second lock rod 3 is arranged towards the cam 51 to accommodate the cam 51, and the second lock rod 3 is arranged in the up-down direction. When the driving device 1 rotates in the forward direction or the reverse direction, the second lock rod 3 moves up and down.

[0096] In the embodiment, further, the preset shape is U-shaped, rectangular, parallelogram-shaped, polygonal, trapezoidal, diamond-shaped or long-strip circular. Taking the U-shaped as an example, that is, the slide includes two planes and an arc surface, the arc surface acts as a transition surface to connect the two planes, so that the cam 51 can continuously slide between the two planes.

[0097] However, the present application is not limited thereto, and the preset shape can also be other shapes, for example, as shown in FIG. 6, the slide includes a plane, an arc surface and an inclined surface connected in sequence, the plane is perpendicular to the linear motion direction of the second lock rod 3, and the inclined surface is inclined at a certain angle (such as an acute angle) relative to the linear motion direction of the second lock rod 3 and the plane. Figure 4

[0098] In the embodiment, further, the electronic lock includes a housing (not shown in the figure), the electronic lock includes the housing, the housing has a first guide hole arranged in the linear motion direction of the first lock rod 2 and a second guide hole arranged in the linear motion direction of the second lock rod 3, the first lock rod 2 passes through the first guide hole, and the second lock rod 3 passes through the second guide hole. The first guide hole can limit the deviation of the first lock rod 2, and the second guide hole can limit the deviation of the second lock rod 3.

[0099] ​In this embodiment, the two ends of the rotating rod 6 are connected to the first transmission mechanism 4 and the second transmission mechanism 5 respectively, and the part between the two ends of the rotating rod 6 is connected to the driving device 1. The output end of the driving device can drive the rotating rod 6 to rotate and further drive the first transmission mechanism 4 and the second transmission mechanism 5 to move.

[0100] 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 to avoid interference when the two locking rods move. Figure 1

[0101] In some embodiments, as shown in FIG. 1, the driving device 1 is a rotary motor. Figure 1

[0102] In some embodiments, the output power of the driving device 1 is 0.35W-5.56W.

[0103] The output power of the driving device 1 determines the working speed of the linkage device. The higher the power, the faster the linkage device completes the work. The smaller the power, the slower the linkage device completes the work, or even the transmission shaft 20 cannot rotate enough torque to complete the locking work of the first locking rod 2 and the second locking rod 3. In order to test the influence of output power on the work of the linkage device, the inventor has carried out relevant tests. The test method is to select driving devices 1 with different output powers, and the structure of the linkage device is the same. Each driving device 1 works continuously for 1 minute, and the number of times the linkage device completes the work is recorded. If the number of times is greater than or equal to 40, it is qualified, and if it is less than 40, it is unqualified. If there is an abnormal noise during the work of the linkage device, it is also unqualified. The results are shown in Table 4.

[0104] Table 4: Influence of different output powers on the speed and abnormal noise of the linkage device

[0105] Power (W) 0.3 0.35 0.50 0.80 1.13 1.22 1.39 1.75 2.41 3.68 4.86 5.56 5.60 Completion times 38 40 47 52 56 58 61 63 65 67 70 71 71 Whether abnormal sound No No No No No No No No No No No Yes Yes

[0106] As shown in Table 4, when the output power of the driving device 1 is less than 0.35W, the number of times the linkage device completes the switching within 1 minute is less than 40, and the speed is too slow to be unqualified. Therefore, the inventor selects the minimum power of the driving device 1 as 0.35W. When the output power of the driving device 1 is greater than 5.56W, the speed of the linkage device enters the bottleneck period due to the influence of the overall design, and there is no obvious improvement. At the same time, there is an abnormal noise, so the inventor selects the output power of the driving device 1 as 0.35W-5.56W. Specifically, it can be 0.9W, 0.96W, 1W, 1.08W, etc.

[0107] In some embodiments, the output torque of the driving device 1 of the electronic lock described above is 2.25N·mm-9.85N·mm.

[0108] ​​The torque of the driving device 1 determines the size of the force applied to the lock rod. For example, if the torque is not enough, the lock rod cannot be driven to complete the switching action of the electronic lock. In order to verify the influence of the rotating motor with different torque on the switching of the electronic lock, the inventor has carried out relevant tests. The test method is to select rotating motors with different torque, and the other structures of the electronic lock are the same. The rotating motor that can normally drive the first transmission mechanism 4 to work is qualified, otherwise it is unqualified. At the same time, if the electronic lock makes abnormal noise during work, it is also regarded as unqualified. The test results are shown in Table 5:

[0109] Table 5: Whether the rotating motor with different torque can normally drive the first transmission mechanism 4 to work

[0110] Torque (N mm) 2.15 2.25 2.80 3.60 3.90 4.50 5.00 5.50 6.00 7.40 8.60 9.85 10 Working ability No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Whether abnormal sound No No No No No No No No No No No No Rotation angle Locking ability

[0111] As shown in Table 5, when the torque of different rotating motors is less than 2.25 N·mm, the first transmission mechanism 4 cannot be driven to work. Therefore, the inventor selects the rotating motor with a torque of 2.25 N·mm. When the torque is greater than 9.85 N·mm, the first transmission mechanism 4 can also be driven to work, but because the torque is too large, the electronic lock makes abnormal noise during work. Therefore, the inventor selects the torque of the driving device to be 2.25 N·mm-9.85 N·mm.

[0112] Specifically, it can be 3.50 N·mm or 4.00 N·mm, etc.

[0113] In some embodiments, the driving device 1 has an output shaft, and the rotation angle of the rotating rod 6 is 15°-92°.

[0114] The rotation angle of the rotating rod 6 can also determine the stroke of the first lock rod 2 and the second lock rod 3. When the rotation angle of the rotating rod 6 is too small, the stroke of the first lock rod 2 and the second lock rod 3 is not enough to complete the locking work. When the rotation angle of the rotating rod 6 is too large, the first lock rod 2 and the second lock rod 3 extend to the working position, and the rotating rod 6 still outputs the rotating force, which can easily cause damage to the linkage device. In order to verify the influence of the rotation angle of the rotating rod 6 on the linkage device, the inventor has carried out tests. The test method is to prepare driving devices 1 with different rotation angles of the rotating rod 6, and the other structures of the linkage device are the same. The rotation angle of the rotating rod 6 that can make the stroke of the first lock rod 2 and the second lock rod 3 complete the locking action is qualified, otherwise it is unqualified. A larger rotation angle means a larger stroke of the first lock rod 2 and the second lock rod 3, and accordingly the size of each connecting part needs to be increased, which can easily cause the connecting part to touch other parts in the linkage device and affect the use of the linkage device. The rotation angle of the rotating rod 6 in this case is also regarded as unqualified. The test results are shown in Table 6:

[0115] Table 6: Influence of different rotation angles of the rotating rod on the function of the linkage device and whether it touches other devices

[0116] No 14 15 28 36 47 55 61 70 78 83 89 92 93 Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Whether touch No No No No No No No No No No No No Yes Figure 1 ​ ​

[0117] From table 6, when the rotation angle of the rotating rod 6 is less than 15°, the first locking rod 2 and the second locking rod 3 cannot complete the locking work because of insufficient stroke. When the rotation angle of the rotating rod 6 is greater than 92°, the unnecessary contact between the devices of the linkage device occurs, which is unqualified. Therefore, the output end rotation angle of the rotating rod 6 is selected to be 15°-92° by the inventor. Specifically, it can be 50°, 60°, 70° or 80°, etc.

[0118] In some embodiments, the material of the rotating rod contains metal or non-metal.

[0119] Further, the material of the transmission shaft contains carbon steel, full copper, pure copper, aluminum-coated zinc, aluminum-coated copper or zinc alloy. These alloys have better strength and toughness and can better meet the needs of the transmission shaft.

[0120] Further, the material of the transmission shaft contains one or more of polyvinyl chloride, polyethylene, polyamide, polytetrafluoroethylene, tetrafluoroethylene / hexafluoro-propylene copolymer, ethylene / tetrafluoroethylene copolymer, polypropylene, polyvinylidene fluoride, polyurethane, polyterephthalic acid, polyurethane elastomer, styrene block copolymer, perfluoroalkoxy alkane, 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, polyformaldehyde resin.

[0121] Taking polyformaldehyde, polyester, polycarbonate, polyamide, polyphenylene sulfide and polytetrafluoroethylene as examples: polyformaldehyde is a hard and dense material with smooth surface and luster, light yellow or white, which can be used for a long time in the temperature range of-40℃-100℃. Its wear resistance and self-lubricating property are superior to most engineering plastics, and it also has good oil resistance and peroxide resistance.

[0122] Polyester is generally polymerized from dimethyl terephthalate, 1,4-butanediol and polybutanol, and the chain segment includes hard segment and soft segment, which is a thermoplastic elastomer.

[0123] Polycarbonate has high strength and elastic coefficient, high impact strength, good fatigue resistance, good dimensional stability, small creep, high transparency and free dyeability.

[0124] Polyamide is non-toxic, light in weight, has excellent mechanical strength, wear resistance and good corrosion resistance, and is therefore widely used to replace metals such as copper.

[0125] Polyphenylene sulfide is a new type of high-performance thermoplastic resin, which has the advantages of high mechanical strength, high temperature resistance, chemical resistance, flame resistance, good thermal stability, excellent electrical properties and the like.

[0126] Polytetrafluoroethylene has the characteristics of acid and alkali resistance, resistance to various organic solvents, and is almost insoluble in all solvents. At the same time, polytetrafluoroethylene has the characteristics of high temperature resistance.

[0127] The material of the transmission shaft contains glass fibers.

[0128] The material of the first lock rod 2 and the second lock rod 3 contains one or more of polyvinyl chloride, polyethylene, polyamide, polytetrafluoroethylene, tetrafluoroethylene / hexafluoropropylene copolymer, ethylene / tetrafluoroethylene copolymer, polypropylene, polyvinylidene fluoride, polyurethane, polyterephthalic acid, polyurethane elastomer, styrene block copolymer, perfluoroalkoxy alkane, 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, polyformaldehyde resin.

[0129] Taking polycarbonate and polyamide as an example, polycarbonate is colorless and transparent, heat-resistant, impact-resistant, and flame-resistant BI level, and has good mechanical properties within the normal use temperature. Compared with polymethyl methacrylate with similar properties, polycarbonate has good impact resistance, high refractive index, good processing performance, and high-grade flame retardant performance without the need for additives.

[0130] Polyamide is non-toxic, light in weight, has excellent mechanical strength, wear resistance and good corrosion resistance, and is therefore widely used to replace metals such as copper in the manufacture of bearings, gears, pump blades and other parts in the machinery, chemical, instrument and automobile industries. The first lock rod 2 and the second lock rod 3 require high strength, high temperature resistance and high wear resistance. Therefore, polycarbonate or polyamide is the first choice for the first lock rod 2 and the second lock rod 3.

[0131] The chute 52 has a wear-resistant plating layer.

[0132] Further, the material of the wear-resistant plating layer contains ceramic, alloy, oxide or fluoroplastic.

[0133] Preferably, the wear-resistant plating layer includes 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.

[0134] The corrosion resistance time test in Table 7 below is to put the chute 52 into a salt spray test chamber, spray salt mist on each position of the chute 52, take out and clean every 20 hours to observe the surface corrosion, which is a cycle, until the surface corrosion area of the chute 52 is greater than 10% of the total area, stop the test, and record the cycle number at that time. In this embodiment, less than 80 cycles is considered unqualified. The number of insertions and extractions in Table 7 is to fix the chute 52 on the test bench, and stop every 100 contact insertion and extraction tests to observe the damage of the wear-resistant coating of the chute 52. If scratches appear and the material of the chute 52 is exposed, the experiment stops and the number of insertions and extractions at that time is recorded. In this embodiment, less than 8000 insertions and extractions is unqualified.

[0135] Table 7: Influence of different coating materials on the number of insertions and extractions and corrosion resistance of the chute

[0136]

[0137] As can be seen from Table 7 above, when the coating material is gold, silver, silver-antimony alloy, palladium, palladium-nickel alloy, graphite-silver, hard silver, graphene-silver, and silver-gold-zirconium alloy, the experimental results exceed the standard value more, and the performance is relatively stable. When the coating material is nickel, tin, tin-lead alloy, and zinc, the experimental results can also meet the requirements, therefore, the inventors select 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 coating material.

[0138] Embodiment Two

[0139] The application also provides an electric vehicle charging seat comprising the electronic lock of Embodiment One (as shown in ​ One of the first lock rod 2 and the second lock rod 3 is used to lock the DC charging gun, and the other is used to lock the AC charging gun.

[0140] The electronic lock in this embodiment has the same structure, working principle and beneficial effects as those of Embodiment One, and will not be described here again.

[0141] Embodiment Three

[0142] The application also provides a motor vehicle comprising the electronic lock of Embodiment One.

[0143] The electronic lock in this embodiment has the same structure, working principle and beneficial effects as those of Embodiment One, and will not be described here again.

[0144] The above merely illustrates the specific embodiments of the present application, and is not intended to limit the scope of the present application. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principle of the present application shall fall within the scope of the present application. It should be noted that the components of the present application are not limited to the above overall application, and the technical features described in the specification of the present application can be selected for single use or combined use, and therefore, the present application naturally covers other combinations and specific applications related to the present application.

Claims

1. An electronic lock characterized by comprising: The electronic lock comprises: a driving device for generating rotary motion; a first lock rod connected with the driving device through a first transmission mechanism, the first transmission mechanism being configured to convert the rotary motion of the driving device into motion of the first lock rod; a second lock rod connected with the driving device through a second transmission mechanism, the second transmission mechanism being configured to convert the rotary motion of the driving device into motion of the second lock rod; and a rotary rod connected with the driving device, the first transmission mechanism and the second transmission mechanism respectively to transmit the rotary motion of the driving device to the first transmission mechanism and the second transmission mechanism; wherein the two ends of the rotary rod are connected with the first transmission mechanism and the second transmission mechanism respectively, and the part between the two ends of the rotary rod is connected with the driving device; the rotary rod, the first lock rod and the second lock rod are perpendicular to each other; the rotation angle of the rotary rod is 15°-92°.

2. The electronic lock of claim 1, wherein, The motion mode of the first lock rod is extension or translation.

3. The electronic lock of claim 1, wherein, The motion mode of the second lock rod is extension or translation.

4. The electronic lock of claim 1, wherein, The first lock rod and the second lock rod are used for plugging with a charging gun lock hole to fix the charging gun.

5. The electronic lock of claim 1, wherein, The shape of the first lock rod is one or more of cylinder, circular truncated cone, circular cone, elliptical cylinder, elliptical truncated cone, elliptical cone, multi-prism, multi-prism truncated cone and multi-prism cone.

6. The electronic lock of claim 1, wherein, The shape of the second lock rod is one or more of cylinder, circular truncated cone, circular cone, elliptical cylinder, elliptical truncated cone, elliptical cone, multi-prism, multi-prism truncated cone and multi-prism cone.

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

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

9. The electronic lock of claim 1, wherein, The first transmission mechanism is a gear and rack mechanism, a connecting rod mechanism, a cam mechanism or a crank slider mechanism.

10. The electronic lock of claim 1, wherein, The second transmission mechanism is a gear and rack mechanism, a connecting rod mechanism, a cam mechanism or a crank slider mechanism.

11. The electronic lock of claim 1, wherein, The electronic lock further comprises a speed reduction mechanism, and the rotary rod is connected with the driving device through the speed reduction mechanism.

12. The electronic lock of claim 11, wherein, The speed reduction mechanism is a two-stage speed reduction mechanism, which comprises: a first worm connected with an output shaft of the driving device; a first gear meshing with the first worm; a second worm connected with an output shaft of the first gear; a second gear meshing with the second worm, the second gear being coaxially connected with the rotary rod.

13. The electronic lock of claim 11, wherein, The transmission ratio of the driving device to the rotary rod is 5 / 1-90 / 1.

14. The electronic lock of claim 9, wherein, The first transmission mechanism is a gear and rack mechanism, which comprises a driving gear and a driven rack meshing with each other, the driven rack being connected with the first lock rod, the rotary rod transmitting the rotary motion of the driving device to the driving gear, the driving gear driving the first lock rod to move linearly by rotating the driven rack.

15. The electronic lock of claim 14, wherein, The gear and rack mechanism is connected with the rotary rod through a reversing assembly, the reversing assembly comprising: a first reversing gear coaxially connected with the rotary rod; A second reversing gear is arranged perpendicularly to the first reversing gear and engaged with the first reversing gear, and the second reversing gear is coaxially connected with the driving gear through a connecting rod, and the connecting rod, the rotating rod and the first locking rod are perpendicular to each other.

16. The electronic lock of claim 10, wherein, The second transmission mechanism is a cam mechanism, which comprises a cam fixed on the rotating rod and a sliding groove arranged on the second locking rod, the cam is located in the sliding groove, the inner wall surface of the sliding groove is configured as a slide way with a preset shape and in sliding contact with the outer contour of the cam, the rotating rod transmits the rotary motion of the driving device to the cam, and the cam is in sliding fit with the slide way through rotation to push the second locking rod to move linearly.

17. The electronic lock of claim 16, wherein, The slide way comprises two planes, the two planes are located on opposite sides of the cam in the linear motion direction of the second locking rod, and the two planes are perpendicular to the linear motion direction of the second locking rod respectively.

18. The electronic lock of claim 16, wherein, The preset shape is U-shaped, rectangular, parallelogram-shaped, trapezoidal, diamond-shaped or long strip circular.

19. The electronic lock of claim 1, wherein, The electronic lock comprises a shell, the shell has a first guide hole arranged along the motion direction of the first locking rod and a second guide hole arranged along the motion direction of the second locking rod, the first locking rod passes through the first guide hole, and the second locking rod passes through the second guide hole.

20. The electronic lock of claim 1, wherein, The driving device is an electric motor.

21. The electronic lock of claim 1, wherein, The output power of the driving device is 0.35W-5.56W.

22. The electronic lock of claim 1, wherein, The output shaft of the driving device has an output torque of 2.25N•mm-9.85N•mm.

23. The electronic lock of claim 1, wherein, The material of the rotating rod contains metal or non-metal.

24. The electronic lock of claim 23, wherein, The material of the rotating rod contains carbon steel, full copper, pure copper, aluminum-coated zinc, aluminum-coated copper or zinc alloy.

25. The electronic lock of claim 1, wherein, The material of the rotating rod contains one or more of polyvinyl chloride, polyethylene, polyamide, polytetrafluoroethylene, tetrafluoroethylene / hexafluoropropylene copolymer, ethylene / tetrafluoroethylene copolymer, polypropylene, polyvinylidene fluoride, polyurethane, polyterephthalic acid, polyurethane elastomer, styrene block copolymer, perfluoroalkoxy alkane, 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, poly-methyl acrylate, polyformaldehyde resin.

26. The electronic lock of claim 23, wherein, The material of the rotating rod contains glass fiber.

27. The electronic lock of claim 1, wherein, The material of the first locking rod and the second locking rod contains one or more of polyvinyl chloride, polyethylene, polyamide, polytetrafluoroethylene, tetrafluoroethylene / hexafluoropropylene copolymer, ethylene / tetrafluoroethylene copolymer, polypropylene, polyvinylidene fluoride, polyurethane, polyterephthalic acid, polyurethane elastomer, styrene block copolymer, perfluoroalkoxy alkane, 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, poly-methyl acrylate, polyformaldehyde resin.

28. The electronic lock of claim 16, wherein The sliding groove has a wear-resistant plating layer.

29. The electronic lock of claim 28, wherein, The material of the wear-resistant plating layer contains ceramic, alloy, oxide or fluoroplastic.

30. The electronic lock of claim 28, wherein, The wear-resistant plating layer includes one or more of gold, silver, nickel, tin, tin-lead alloy, zinc, silver-antimony alloy, palladium, palladium-nickel alloy, graphite-silver, graphene-silver, and silver-gold-zirconium alloy.

31. An electric vehicle charging station, comprising: The electric vehicle charging station includes the electronic lock of any one of claims 1 to 30, one of the first lock lever and the second lock lever being used to lock a direct current charging gun and the other being used to lock an alternating current charging gun.

32. A motor vehicle characterized by The motor vehicle includes the electronic lock of any one of claims 1 to 30.

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