CN114944569A - Electronic lock and charging seat - Google Patents
Electronic lock and charging seat Download PDFInfo
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- CN114944569A CN114944569A CN202210491815.9A CN202210491815A CN114944569A CN 114944569 A CN114944569 A CN 114944569A CN 202210491815 A CN202210491815 A CN 202210491815A CN 114944569 A CN114944569 A CN 114944569A
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- electronic lock
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
- B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Mechanical Engineering (AREA)
- Lock And Its Accessories (AREA)
Abstract
An electronic lock and a charging seat relate to the technical field of new energy vehicles. The locking mechanism comprises a driving device, a transmission structure, a first locking rod, a second locking rod and a shell; the transmission mechanism, the first lock rod and the second lock rod are arranged in the shell, and the first lock rod and the second lock rod can extend out of the shell; the transmission mechanism comprises a speed reducing mechanism and an output mechanism which are connected in sequence, the speed reducing mechanism is connected with the driving device, and the output mechanism is used for driving the first lock rod and the second lock rod to move. The invention can drive the two lock rods to be simultaneously opened and closed only by arranging one driving device, thereby not only realizing the simultaneous gun locking of the electronic lock on the direct current charging gun and the alternating current charging gun, but also not increasing the manufacturing cost of the electronic lock, and the electronic lock has simple structure and convenient use.
Description
Technical Field
The invention relates to the technical field of new energy automobiles, in particular to an electronic lock and a charging seat.
Background
Pure electric vehicles in the new energy vehicles provide electric energy for the motor through the battery, and the motor is driven to operate, so that the vehicles are driven to run. The rechargeable battery of the pure electric vehicle mainly comprises a lead-acid battery, a nickel-cadmium battery, a nickel-hydrogen battery, a lithium ion battery and the like, the batteries can provide power for the electric vehicle, meanwhile, the pure electric vehicle also stores electric energy through the batteries, a driving motor runs to enable the vehicle to normally run, and the batteries of the pure electric vehicle are mainly charged by a new energy vehicle charging gun.
In the prior art, when a plurality of charging interfaces are distributed on a charging base, for example, a dc charging interface and an ac charging interface are distributed at the same time, different charging guns can be used for charging. The technical scheme is that a plurality of driving devices are used for respectively controlling the locking connection of a plurality of charging interfaces and a charging gun, each driving device drives a corresponding lock rod, the charging gun is locked and connected on a corresponding charging seat to be charged, and the problems of large part number of the driving devices, high manufacturing cost and the like exist.
Therefore, an electronic lock for synchronously controlling a plurality of lock rods is urgently needed in the technical field of new energy automobiles, one driving device can be used, the plurality of lock rods are controlled to be locked and connected with a charging gun, the defects of the prior art are overcome, and the problems of large part number, high manufacturing cost and the like of the driving device are solved.
Disclosure of Invention
The invention aims to provide an electronic lock and a charging seat, which overcome the problems in the prior art, and the electronic lock can improve the control precision, effectively reduce the manufacturing cost and reduce the number of sub-parts by synchronously controlling two lock rods through a driving device.
An electronic lock comprises a driving device, a transmission structure, a first lock rod, a second lock rod and a shell;
the transmission mechanism, the first lock rod and the second lock rod are arranged in the shell, and the first lock rod and the second lock rod can extend out of the shell;
the transmission mechanism comprises a speed reducing mechanism and an output mechanism which are connected in sequence, the speed reducing mechanism is connected with the driving device, and the output mechanism is used for driving the first lock rod and the second lock rod to move.
The output mechanism comprises a transmission rod, a first output gear and a second output gear which are connected with the speed reducing mechanism;
the first output gear and/or the second output gear are/is arranged coaxially with the transmission rod;
racks are arranged on the first lock rod and the second lock rod and are respectively meshed with the first output gear and the second output gear.
The transmission ratio of the driving device to the transmission rod is 2/1-200/1.
And a manual unlocking device is arranged on the transmission structure.
The speed reducing mechanism consists of a plurality of gears in transmission connection.
The speed reducing mechanism comprises a first transmission gear connected with the output end of the driving device, a second transmission gear meshed with the first transmission gear, a third transmission gear coaxial with the second transmission gear and a fourth transmission gear meshed with the third transmission gear;
the diameter of the first transmission gear is smaller than that of the second transmission gear;
the diameter of the third transmission gear is smaller than that of the second transmission gear;
the fourth transmission gear is connected with the output mechanism.
The speed reducing mechanism comprises a fifth transmission gear connected with the output end of the driving device and a sixth transmission gear meshed with the fifth transmission gear;
the diameter of the fifth transmission gear is smaller than that of the sixth transmission gear;
and the sixth transmission gear is connected with the output mechanism.
The transmission ratio of the driving device to the third transmission gear is 1/1-20/1.
The transmission ratio of the third transmission gear to the output mechanism is 1/1-20/1.
The surface roughness Ra of the first transmission gear, the second transmission gear, the third transmission gear and the fourth transmission gear is 0.4-6.5 mu m.
And the shell is provided with a lock hole for respectively accommodating the first lock rod and the second lock rod to pass through.
The first lock rod and the second lock rod are in one or more of a cylinder, a circular truncated cone, a cone, an elliptic cylinder, an elliptic table, an elliptic cone, a polygonal column, a polygonal table and a polygonal pyramid shape.
The length of the first lock rod is 1mm-95mm, and the length of the second lock rod is 1mm-95 mm.
The output power of the driving device is 0.25W-15.6W.
The output torque of the driving device is 0.25 N.mm-20.5 N.mm.
The rotation angle of the transmission rod is 3.5-92 degrees.
The material of the transmission rod contains metal or nonmetal.
The material of the transmission rod contains one or more of iron, copper, aluminum, zinc, nickel or tin.
The material of the transmission rod contains one of polyvinyl chloride, polyethylene, polyamide, polytetrafluoroethylene, tetrafluoroethylene/hexafluoropropylene copolymer, ethylene/tetrafluoroethylene copolymer, polypropylene, polyvinylidene fluoride, polyurethane, terephthalic 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 oxide, polyester, phenolic resin, urea formaldehyde, styrene-acrylonitrile copolymer, polymethacrylate and polyformaldehyde resin.
The material of the transmission rod contains glass fiber.
The first lock rod and the second lock rod are made of one or more of polyvinyl chloride, polyethylene, polyamide, polytetrafluoroethylene, tetrafluoroethylene/hexafluoropropylene copolymer, ethylene/tetrafluoroethylene copolymer, polypropylene, polyvinylidene fluoride, polyurethane, poly terephthalic 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 oxide, polyester, phenolic resin, urea formaldehyde, styrene-acrylonitrile copolymer, polymethacrylate and polyformaldehyde resin.
The hardness of the first lock rod and/or the second lock rod is not less than 3 HV.
The rack is provided with a wear-resistant coating.
The material of the wear-resistant coating contains ceramics, alloy, oxide or fluoroplastic.
The wear-resistant coating contains one of gold, silver, nickel, tin-lead alloy, zinc, silver-antimony alloy, palladium-nickel alloy, graphite silver, hard silver, graphene silver and silver-gold-zirconium alloy.
The driving device is an electric motor or a hydraulic motor.
A charging stand comprises the electronic lock, wherein one of the first lock rod and the second lock rod is used for locking a direct current charging gun, and the other one of the first lock rod and the second lock rod is used for locking an alternating current charging gun.
The casing is provided with a fixing part, and the fixing part is used for fixing the casing on the charging seat.
The invention has the beneficial effects that: the two lock rods can be driven to be simultaneously opened and closed only by arranging one driving device, so that the electronic lock can lock the direct current charging gun and the alternating current charging gun simultaneously, the manufacturing cost of the electronic lock cannot be increased, and the electronic lock is simple in structure and convenient to use. The invention adopts the helical gear to carry out speed reduction transmission, and has the advantages of good meshing performance and large contact ratio, thereby prolonging the service life of the gear.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural diagram of an electronic lock according to the present invention.
Fig. 2 is a schematic view of a rack structure of an electronic lock according to the present invention.
Fig. 3 is a schematic view of a fixing portion of an electronic lock according to the present invention.
The figures are labeled as follows:
the locking mechanism comprises a driving device 1, a first lock rod 2, a rack 21, a second lock rod 3, a shell 4, a transmission rod 5, an unlocking pin 51, a first output gear 6, a second output gear 7, a first transmission gear 81, a second transmission gear 82, a third transmission gear 83, a fourth transmission gear 84 and a fixing part 9.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values.
An electronic lock, as shown in fig. 1-3, comprises a driving device 1, a transmission structure, a first lock rod 2, a second lock rod 3 and a shell 4;
the transmission mechanism, the first lock rod 2 and the second lock rod 3 are arranged in the shell 4, and the first lock rod 2 and the second lock rod 3 can extend out of the shell 4;
the transmission mechanism comprises a speed reducing mechanism and an output mechanism which are connected in sequence, the speed reducing mechanism is connected with the driving device 1, and the output mechanism is used for driving the first lock rod 2 and the second lock rod 3 to move.
The drive means may be arranged inside the housing 4 or outside the housing 4. The driving device 1 is used for outputting rotary motion, the speed reducing mechanism is connected with an output shaft of the driving device 1, the speed reducing mechanism plays a role in reducing the speed of the rotary motion output by the driving device 1 and drives the output mechanism to move, and the output mechanism drives the first locking rod 2 and the second locking rod 3 to synchronously enter and exit the shell 4, so that the unlocking or locking action is completed. According to the invention, two transmission mechanisms are arranged to be connected with the driving device 1, and only one driving device 1 is needed to drive two lock rods to be simultaneously opened and closed, so that the electronic lock can lock the direct current charging gun and the alternating current charging gun simultaneously, the manufacturing cost of the electronic lock is not increased, and the electronic lock is simple in structure and convenient to use.
Further, as shown in fig. 1, the output mechanism includes a transmission rod 5 connected to the speed reduction mechanism, a first output gear 6 and a second output gear 7;
the first output gear 6 and/or the second output gear 7 are/is arranged coaxially with the transmission rod 5;
the first lock rod 2 and the second lock rod 3 are both provided with racks 21, and the racks 21 are respectively meshed with the first output gear 6 and the second output gear 7.
The speed reducing mechanism drives the transmission rod 5 to rotate, the first output gear 6 and the second output gear 7 arranged on the transmission rod 5 rotate along with the transmission rod, and the rack 21 is driven to further drive the first lock rod 2 and the second lock rod 3 to perform linear motion. The first lock rod 2 and the second lock rod 3 can enter and exit the lock hole of the shell 4 under the driving of the transmission rod 5.
In some embodiments, the transmission ratio of the driving device 1 to the transmission rod 5 is 2/1-200/1. If the transmission ratio is too large, it takes too much time for the transmission rod 5 to rotate, whereas if the transmission ratio is too small, control inaccuracies are liable to be reverberant. Therefore, the inventors selected different gear ratios to test, observed the number of times of completion of the locking or unlocking operation within 1 minute, and found that the failure was found when less than 40 times of the locking or unlocking operation was performed, and the failure was found when abnormal noise occurred, and the results are shown in table 1.
Table 1: influence of different transmission ratios on speed of electronic lock
| Transmission ratio | 1.8/1 | 2/1 | 5/1 | 20/1 | 60/1 | 100/1 | 180/1 | 195/1 | 200/1 | 202/1 |
| Number of completions | 38 | 40 | 47 | 52 | 55 | 86 | 125 | 153 | 155 | 158 |
| Whether abnormal sound is present or not | Whether or not | Whether or not | Whether or not | Whether or not | Whether or not | Whether or not | Whether or not | Whether or not | Whether or not | Is that |
As can be seen from Table 1, if the transmission ratio is too small, the electronic lock completes locking or unlocking actions less than 40 times within 1 minute, and the response speed is too slow, so that the electronic lock is not qualified; meanwhile, after the transmission ratio is larger than 200/1, the electronic lock will have abnormal sound and is unqualified, so the inventor chooses the transmission ratio of 2/1-200/1 between the driving device 1 and the transmission rod 5.
In some embodiments, a manual unlocking device is provided on the transmission rod 5. For safety, the electronic lock of the present invention is provided with a manual unlocking device, in a specific embodiment, the unlocking device is an unlocking pin 51 disposed on the transmission rod 5, as shown in fig. 2, the unlocking pin 51 is connected to the outside of the housing 4 through a pull rope, when manual unlocking is required, the pull rope can be pulled, and then the unlocking pin 51 is pulled, the unlocking pin 51 drives the transmission rod 5 to rotate, and then drives the first output gear 6 and the second output gear 7 to rotate, and drives the first locking rod 2 and the second locking rod 3 to retract, so as to complete manual unlocking. In other embodiments, the transmission rod 5 is coaxially provided with an unlocking handle, the unlocking handle is arranged outside the shell 4, and when unlocking is needed, the unlocking handle can be rotated to drive the transmission rod 5 to rotate, so that unlocking is realized.
In some embodiments, the reduction mechanism is comprised of a plurality of gears in driving connection. In some specific embodiments, the helical gear is adopted, and the helical gear has the advantages of good meshing performance and high contact ratio, and the bearing capacity of the gear is improved due to the increase of the contact ratio. Thereby prolonging the service life of the gear; meanwhile, the helical gear is compact in structure, and needs fewer teeth and smaller gear diameter under the condition of the same transmission ratio.
In some embodiments, as shown in fig. 1, the speed reducing mechanism includes a first transmission gear 81 connected to the output end of the driving device 1, a second transmission gear 82 engaged with the first transmission gear 81, a third transmission gear 83 coaxial with the second transmission gear 82, and a fourth transmission gear 84 engaged with the third transmission gear 83; the diameter of the third transmission gear 83 is smaller than that of the second transmission gear 82; the fourth transmission gear 84 is connected with the output mechanism. The output end of the output device 1 drives the first transmission gear 81 to rotate, the second transmission gear 82 meshed with the first transmission gear 81 rotates along with the first transmission gear, the third transmission gear 83 which is coaxial with the second transmission gear 82 and has a smaller diameter also rotates and drives the fourth transmission gear 84 to rotate, so that the high-speed rotation output by the driving device is changed into the relatively low-speed rotation, and the fourth transmission gear 84 further drives the output mechanism to complete the unlocking action. In a specific embodiment, the first drive gear 81, the second drive gear 82, the third drive gear 83, and the fourth drive gear 84 are all helical gears.
In some embodiments, the speed reducing mechanism comprises a fifth transmission gear connected with the output end of the driving device 1, and a sixth transmission gear meshed with the fifth transmission gear; the diameter of the fifth transmission gear is smaller than that of the sixth transmission gear; and the sixth transmission gear is connected with the output mechanism. The driving device 1 drives the fifth transmission gear to rotate so as to drive the sixth transmission gear to rotate, and the two lock rods can be controlled simultaneously only through one-stage speed reduction.
In some embodiments, the transmission ratio of the driving device 1 to the third transmission gear 83 is 1/1-20/1. If the transmission ratio of the driving device 1 to the third transmission gear 83 is too large, the transmission rod 5 needs more corresponding time to rotate, and if the transmission ratio is too small, control inaccuracy is easy to generate abnormal sound. Therefore, the inventors selected different transmission ratios of the driving device 1 and the third transmission gear 83 to test, observed the number of times of completion of the locking or unlocking operation within 1 minute, and found that the failure was found when the number of times was less than 40, and the failure was found when abnormal noise occurred, and the results are shown in table 2.
Table 2: influence of transmission ratio of different driving devices 1 and the third transmission gear 83 on speed of the electronic lock
| Transmission ratio | 0.8/1 | 1/1 | 2/1 | 5/1 | 10/1 | 13/1 | 16/1 | 18/1 | 20/1 | 21/1 |
| Number of completions | 38 | 41 | 47 | 56 | 75 | 98 | 113 | 129 | 133 | 135 |
| Whether abnormal sound is present or not | Whether or not | Whether or not | Whether or not | Whether or not | Whether or not | Whether or not | Whether or not | Whether or not | Whether or not | Is that |
As can be seen from table 2, if the transmission ratio between the driving device 1 and the third transmission gear 83 is too small, the electronic lock completes the locking or unlocking operation less than 40 times within 1 minute, and the response speed is too slow, so that the electronic lock is not qualified; meanwhile, when the transmission ratio of the driving device 1 to the third transmission gear 83 is larger than 20/1, the electronic lock will not be qualified if abnormal sound occurs, so the inventor chooses the transmission ratio of the driving device 1 to the transmission rod 5 to be 1/1-20/1.
In some embodiments, the transmission ratio of the third transmission gear 83 to the transmission rod 5 is 1/1-20/1. If the transmission ratio of the third transmission gear 83 to the transmission rod 5 is too large, the transmission rod 5 needs more corresponding time to rotate, and if the transmission ratio is too small, control inaccuracy is easy to generate abnormal sound. Therefore, the inventors selected different gear ratios of the third transmission gear 83 and the transmission rod 5 to test, observed the number of times of completion of the locking or unlocking operation within 1 minute, and found that the failure was found when less than 40 times of the locking or unlocking operation was completed, and the failure was found when abnormal noise occurred, and the results are shown in table 3.
Table 3: influence of the transmission ratio of the third transmission gear 83 to the transmission rod 5 on the speed of the electronic lock
| Transmission ratio | 0.8/1 | 1/1 | 2/1 | 5/1 | 10/1 | 13/1 | 16/1 | 18/1 | 20/1 | 21/1 |
| Number of completions | 38 | 40 | 45 | 55 | 72 | 94 | 111 | 122 | 131 | 133 |
| Whether abnormal sound is present or not | Whether or not | Whether or not | Whether or not | Whether or not | Whether or not | Whether or not | Whether or not | Whether or not | Whether or not | Is that |
As can be seen from table 3, if the transmission ratio between the third transmission gear 83 and the transmission rod 5 is too small, the electronic lock completes the locking or unlocking operation less than 40 times within 1 minute, and the response speed is too slow, so that the electronic lock is not qualified; meanwhile, after the transmission ratio of the third transmission gear 83 to the transmission rod 5 is larger than 20/1, the electronic lock will have abnormal sound and is unqualified, so the inventor chooses the transmission ratio of the third transmission gear 83 to the transmission rod 5 to be 1/1-20/1.
In some embodiments, the first transfer gear 81, the second transfer gear 82, the third transfer gear 83, and the fourth transfer gear 84 have a surface roughness Ra of 0.4 μm to 6.5 μm. If the roughness of the gear surface is insufficient, it is highly likely that one tooth will be lost during the transmission. If the roughness is too large, abnormal noise occurs in the friction between teeth, and therefore, the inventor takes the third gear 83 as an example and conducts a test, and selects one test gear and the third transmission gear 83 with different surface roughness, and rotates the third transmission gear 83 for 5 minutes by using the rotation of the test gear, and if one tooth is idle, the test gear is unqualified, and if abnormal noise occurs, the test gear is unqualified, and the results are shown in table 4.
Table 4: influence of third transmission gear surface roughness on idling and abnormal sound
As shown in table 4, when the surface roughness of the third transmission gear 83 is less than 0.4 μm, there occurs a case where the test gear is rotated by one tooth angle and the third transmission gear 83 is not rotated, which is a fail. When the surface roughness of the third transmission gear 83 is larger than 6.5 μm, the third transmission gear 83 and the test gear may be abnormal in noise due to friction and may be defective because the roughness is too large. Therefore, the inventors prefer that the surface roughness Ra of the first transmission gear 81, the second transmission gear 82, the third transmission gear 83 and the fourth transmission gear 84 be 0.4 μm to 6.5 μm.
In some embodiments, the housing 4 is provided with lock holes for respectively receiving the first lock rod 2 and the second lock rod 3. The first lock rod 2 and the second lock rod 3 can enter and exit the lock hole to complete locking or unlocking actions under the driving of the driving device 1.
In some embodiments, the drive device 1 is disposed within the housing 4. That is to say, whole electronic lock is a whole that sets up in casing 4, and the production and processing of being convenient for directly installs the electronic lock whole in the place that needs to use during the installation.
In other embodiments, the drive device 1 is arranged outside the housing 4. The driving device 4 can be arranged on a charging seat, and only other mechanical structures are arranged in the shell 4, so that the driving device 1 does not need to be replaced if a transmission structure fails.
In some embodiments, the shape of the first lock rod 2 and the second lock rod 3 is one or more of a cylinder, a circular truncated cone, a cone, an elliptic cylinder, an elliptic truncated cone, an elliptic cone, a polygonal prism, a polygonal frustum, and a polygonal pyramid. In actual use, the shape of the lock hole of the charging device can be selected.
In some embodiments, the length of the first lock bar 2 is 1mm to 95mm, and the length of the second lock bar 3 is 1mm to 95 mm.
The first lock rod 2 and the second lock rod 3 cannot complete the locking operation if being too short, and interfere with the charging device to generate abnormal sound if being too long, so that the inventor selects the first lock rod 2 with different lengths and the second lock rod 3 with different lengths to test, the locking cannot be completed, the abnormal sound is unqualified, and the test result is shown in table 5.
Table 5: influence of different lock rod lengths on the locking operation
As can be seen from table 5, when the lengths of the first locking lever 2 and the second locking lever 3 are less than 1mm, the locking lever cannot lock the charging device, and when the lengths of the first locking lever 2 and the second locking lever 3 are greater than 95mm, the locking lever interferes with the charging device to generate abnormal noise, so the inventor selects the length of the first locking lever 2 to be 1mm to 95mm, and the length of the second locking lever 3 to be 1mm to 95 mm.
In some embodiments, the output power of the driving device 1 is 0.25W to 15.6W. The output power of the driving device 1 determines the working speed of the electronic lock, the higher the power is, the faster the electronic lock completes the work, and the lower the power is, the slower the electronic lock completes the work, and even the locking work of the first locking rod 2 and the second locking rod 3 cannot be completed. In order to test the influence of the output power on the work of the electronic lock, the inventor performs related tests, and the test method comprises the steps of selecting the driving devices 1 with different output powers, enabling the other structures of the electronic lock to be the same, enabling each driving device 1 to continuously work for 1 minute, and recording the number of times that the electronic lock finishes working, wherein the number of times is greater than or equal to 40 and is qualified, and the number of times is smaller than 40 and is unqualified. If abnormal sound occurs during the operation of the electronic lock, the electronic lock is also regarded as unqualified. The results are shown in Table 6.
Table 6: influence of different output power on speed and abnormal sound of electronic lock
| Power (W) | 0.23 | 0.25 | 0.30 | 0.80 | 1.5 | 3 | 5 | 7 | 10 | 12 | 15 | 15.6 | 15.7 |
| Number of completions | 38 | 40 | 47 | 52 | 55 | 58 | 61 | 66 | 78 | 85 | 94 | 95 | 95 |
| Whether abnormal sound is present or not | Whether or not | Whether or not | Whether or not | Whether or not | Whether or not | Whether or not | Whether or not | Whether or not | Whether or not | Whether or not | Whether or not | Whether or not | Is that |
As shown in table 6, after the output power of the driving device 1 is less than 0.25W, the number of times of the electronic lock completing the switching within 1 minute is less than 40, and the speed is too slow to be qualified, so the inventor selects the minimum power of the driving device 1 to be 0.25W, and when the output power of the driving device 1 is more than 15.6W, the electronic lock is influenced by the overall design, the speed enters the bottleneck period, no obvious improvement is caused, and meanwhile, abnormal sound also occurs, so the output power of the driving device 1 selected by the inventor is 0.25W-15.6W. Specifically, the amount of the surfactant may be 0.9W, 0.96W, 1W, 1.08W, 5W, 10W, or the like.
In some embodiments, the output torque of the drive 1 is 0.25N · mm to 20.5N · mm.
The torque of the driving device 1 determines the magnitude of the force applied to the lock rod, taking a rotating motor as an example, if the torque is insufficient, the lock rod cannot be driven to complete the opening and closing actions of the electronic lock, and in order to verify the influence of the rotating motors with different torques on the opening and closing of the electronic lock, the inventor performs related tests. The test results are shown in table 7:
table 7: whether the rotating motors with different torques can normally drive the speed reducing mechanism to work or not
As shown in table 7, since the reduction mechanism cannot be driven when the torque of the different rotating electric machines is less than 0.25N · mm, the inventors selected the rotating electric machine with the torque of 0.25N · mm at the minimum. When the torque is larger than 20.5 N.mm, although the speed reducing mechanism can be driven to work, the torque of the driving device selected by the inventor is 0.25 N.mm-20.5 N.mm because the electronic lock can generate abnormal sound when working because the torque is too large. Specifically, it may be 3.50 N.mm, 14.00 N.mm or the like.
An electronic lock according to claim 1, characterized in that the rotation angle of the transmission lever 5 is 3.5-92 °. The angle of rotation of the rotating lever 5 can also determine the stroke of the first lock lever 2 and the second lock lever 3. When the rotation angle of the rotation lever 5 is too small, the stroke of the first lock lever 2 and the second lock lever 3 is insufficient, and the locking work cannot be completed. When the rotation angle of the rotation rod 5 is too large, the rotation rod 5 still outputs the rotation force after the first lock rod 2 and the second lock rod 3 extend to the working position, which easily causes the damage of the electronic lock. In order to verify the influence of the rotation angle of the rotating rod 5 on the electronic lock, the inventor tests that the stroke of the first lock rod 2 and the stroke of the second lock rod 3 can be qualified after the locking action is completed by preparing the driving device 1 with different rotation angles of the rotating rod 5, and the electronic lock has the same other structure, otherwise, the electronic lock is unqualified. The larger rotation angle means a larger stroke of the first lock lever 2 and the second lock lever 3, and accordingly, the size of each connecting part needs to be increased, which easily causes a collision with other parts in the electronic lock to affect the use of the electronic lock. The rotation angle of the rotating lever 5 in this case was also regarded as being not good, and the test results are shown in table 8:
table 8: influence of rotation angle range of different rotation rods on electronic lock function and whether to touch other devices
As can be seen from table 8, when the rotation angle of the rotating lever 5 is less than 3.5 °, the strokes of the first lock lever 2 and the second lock lever 3 are insufficient, and the locking operation cannot be completed. When the rotation angle of the rotation lever 5 is greater than 92 °, unnecessary contact between devices of the electronic lock occurs and the electronic lock is also unqualified, and therefore, the rotation angle of the output end of the rotation lever 5 is selected by the inventor to be 3.5 ° to 92 °. Specifically, the angle may be 50 °, 60 °, 70 °, 80 °, or the like.
In some embodiments, the material of the transmission rod 5 comprises metal or nonmetal.
Further, the material of the transmission rod 5 contains one or more of iron, copper, aluminum, zinc, nickel or tin. The material containing the elements has better strength and toughness and can better meet the requirement of the transmission rod 5.
In some embodiments, the material of the driving rod 5 comprises one of polyvinyl chloride, polyethylene, polyamide, polytetrafluoroethylene, tetrafluoroethylene/hexafluoropropylene copolymer, ethylene/tetrafluoroethylene copolymer, polypropylene, polyvinylidene fluoride, polyurethane, terephthalic 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 oxide, polyester, phenolic resin, urea formaldehyde, styrene-acrylonitrile copolymer, polymethacrylate, and polyoxymethylene resin. Examples are polyoxymethylene, polyester, polycarbonate, polyamide, polyphenylene sulfide and polytetrafluoroethylene: polyoxymethylene is a glossy, hard and dense material with a smooth surface, is yellowish or white, and can be used for a long time at a temperature of-40 ℃ to 100 ℃. Its wear resistance and self-lubricating property are superior to most engineering plastics, and it also has good oil-resisting and peroxide-resisting properties.
Polyesters, typically polymerized from dimethyl terephthalate, 1, 4-butanediol, and polybutanol, have segments comprising hard segments and soft segments and are thermoplastic elastomers.
The polycarbonate has high strength, high elastic coefficient, high impact strength, good fatigue resistance, good dimensional stability, small creep, high transparency and free dyeing property.
Polyamide has the advantages of no toxicity, light weight, excellent mechanical strength, wear resistance and better corrosion resistance, thus being widely applied to replace metals such as copper and the like.
Polyphenylene sulfide is a novel high-performance thermoplastic resin, and has the advantages of high mechanical strength, high temperature resistance, chemical resistance, flame retardancy, good thermal stability, excellent electrical property and the like.
Polytetrafluoroethylene has the characteristics of acid resistance, alkali resistance and resistance to various organic solvents, and is almost insoluble in all solvents. Meanwhile, the polytetrafluoroethylene has the characteristic of high temperature resistance.
In some embodiments, the material of the transmission rod 5 comprises glass fiber.
The first lock rod 2 and the second lock rod 3 are made of one of polyvinyl chloride, polyethylene, polyamide, polytetrafluoroethylene, tetrafluoroethylene/hexafluoropropylene copolymer, ethylene/tetrafluoroethylene copolymer, polypropylene, polyvinylidene fluoride, polyurethane, poly 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 oxide, polyester, phenolic resin, urea formaldehyde, styrene-acrylonitrile copolymer, polymethacrylate, and polyoxymethylene resin, taking polycarbonate and polyamide as examples, the polycarbonate is colorless and transparent, heat-resistant, impact-resistant and flame-retardant at BI level, and has good mechanical properties at common use temperature. Compared with polymethyl methacrylate, polycarbonate has good impact resistance, high refractive index, good processability and high-grade flame retardant property without additives.
The polyamide has the advantages of no toxicity, light weight, excellent mechanical strength, wear resistance and better corrosion resistance, so the polyamide is widely applied to replacing metals such as copper and the like to manufacture bearings, gears, pump blades and other parts in the industries such as machinery, chemical engineering, instruments, automobiles and the like. The first lock rod 2 and the second lock rod 3 need high strength, high temperature resistance, high wear resistance and the like. Therefore, polycarbonate or polyamide is the preferred choice for the first locking bar 2 and the second locking bar 3.
In some embodiments, the hardness of the first lock lever 2 and the second lock lever 3 is not less than 3 HV.
If the hardness of the first lock rod 2 and the second lock rod 3 is too low, the electronic lock may bend the lock rods when the external force is applied, and the first lock rod 2 and the second lock rod 3 may break over time, so a lock rod with a certain hardness must be selected, for this reason, the inventor chooses to perform a bending test on lock rods with different hardnesses with a 500N force, and if the first lock rod 2 and the second lock rod 3 bend, the test is not qualified, and the results are shown in table 9.
Table 9: influence of the hardness of the locking rod on whether bending occurs
As can be seen from table 9, the hardness of the first lock lever 2 and the second lock lever 3 is preferably not less than 3HV because the lock lever is not qualified because it is bent in the experiment when the hardness is less than 3HV, and the hardness of the first lock lever 2 and the second lock lever 3 is not less than 3HV because the lock lever is not bent when the hardness is not less than 3 HV.
In some embodiments, the rack 21 has a wear resistant coating thereon. Furthermore, the material of the wear-resistant coating contains ceramics, alloy, oxide or fluoroplastic. That is, the wear-resistant coating may contain metal or nonmetal, and the nonmetal has the advantage that when the electronic lock works, the rack 21 is not easy to generate sparks with the first output gear 6 and the second output gear 7, and is safer in an electricity environment.
Preferably, the wear resistant coating comprises one or more of gold, silver, nickel, tin-lead alloy, zinc, silver-antimony alloy, palladium-nickel alloy, graphite silver, hard silver, graphene silver and silver-gold-zirconium alloy.
The corrosion resistance time test in table 10 below is to put the rack 21 into a salt spray test box, spray salt spray to each position of the rack 21, take out and clean every 20 hours to observe the surface corrosion condition, i.e. a cycle, stop the test until the surface corrosion area of the rack 21 is greater than 10% of the total area, and record the cycle number at that time. In this example, the number of cycles less than 80 was considered to be unacceptable. The number of times of insertion and extraction in table 10 is to fix the rack 21 on the experiment table, and stop to observe the condition of damage of the wear-resistant plating layer of the rack 21 every 100 times of contact insertion and extraction tests, and stop the experiment if the scratch occurs and the material of the rack 21 is exposed, and record the number of times of insertion and extraction at that time. In this embodiment, the number of plugging times is not more than 8000.
Table 10: the racks with different wear-resistant coating materials are influenced by the plugging times and the corrosion resistance
As can be seen from table 10 above, when the selected wear-resistant plating layer is made of gold, silver-antimony alloy, palladium-nickel alloy, graphite-silver, hard silver, graphene-silver, silver-gold-zirconium alloy, the experimental result exceeds the standard value more, and the performance is more stable. When the selected wear-resistant coating is made of nickel, tin-lead alloy and zinc, the experimental result can meet the requirement, so that the inventor selects the wear-resistant coating to be made of one or more of gold, silver, nickel, tin-lead alloy, zinc, hard silver, silver-antimony alloy, palladium-nickel alloy, graphite silver, graphene silver and silver-gold-zirconium alloy.
In some embodiments, the drive device is an electric or hydraulic motor.
The invention also provides a charging seat which comprises the electronic lock, wherein one of the first lock rod 2 and the second lock rod 3 is used for locking the direct current charging gun, and the other one is used for locking the alternating current charging gun. No matter what kind of charging gun is inserted into the user, the electronic lock can lock the charging gun, so that two lock rods can be driven to be simultaneously opened and closed by only arranging one driving device, the electronic lock can lock the gun simultaneously for the direct current charging gun and the alternating current charging gun, and the manufacturing cost of the electronic lock cannot be increased.
Further, a fixing portion 9 is disposed on the housing 4, and the fixing portion 9 is used for fixing the housing 4 on the charging seat. If the drive unit 1 is not housed in the case 4 but is separately mounted on the charging stand, it is necessary to connect the reduction mechanism to the output shaft of the drive unit 1. The fixing part 9 can be connected with the charging seat by adopting a screw connection or clamping connection mode.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications can be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (28)
1. An electronic lock, characterized in that: the locking mechanism comprises a driving device, a transmission structure, a first locking rod, a second locking rod and a shell;
the transmission mechanism, the first lock rod and the second lock rod are arranged in the shell, and the first lock rod and the second lock rod can extend out of the shell;
the transmission mechanism comprises a speed reducing mechanism and an output mechanism which are connected in sequence, the speed reducing mechanism is connected with the driving device, and the output mechanism is used for driving the first lock rod and the second lock rod to move.
2. An electronic lock as defined in claim 1, wherein: the output mechanism comprises a transmission rod, a first output gear and a second output gear which are connected with the speed reducing mechanism;
the first output gear and/or the second output gear are/is arranged coaxially with the transmission rod;
the first lock rod and the second lock rod are both provided with racks, and the racks are respectively meshed with the first output gear and the second output gear.
3. An electronic lock as defined in claim 2, wherein: the transmission ratio of the driving device to the transmission rod is 2/1-200/1.
4. An electronic lock as defined in claim 1, wherein: and a manual unlocking device is arranged on the transmission structure.
5. An electronic lock as defined in claim 1, wherein: the speed reducing mechanism consists of a plurality of gears in transmission connection.
6. An electronic lock as defined in claim 1, wherein: the speed reducing mechanism comprises a first transmission gear connected with the output end of the driving device, a second transmission gear meshed with the first transmission gear, a third transmission gear coaxial with the second transmission gear and a fourth transmission gear meshed with the third transmission gear;
the diameter of the first transmission gear is smaller than that of the second transmission gear;
the diameter of the third transmission gear is smaller than that of the second transmission gear;
the fourth transmission gear is connected with the output mechanism.
7. An electronic lock as defined in claim 1, wherein: the speed reducing mechanism comprises a fifth transmission gear connected with the output end of the driving device and a sixth transmission gear meshed with the fifth transmission gear;
the diameter of the fifth transmission gear is smaller than that of the sixth transmission gear;
and the sixth transmission gear is connected with the output mechanism.
8. An electronic lock as defined in claim 6, wherein: the transmission ratio of the driving device to the third transmission gear is 1/1-20/1.
9. An electronic lock as defined in claim 6, wherein: the transmission ratio of the third transmission gear to the output mechanism is 1/1-20/1.
10. An electronic lock as defined in claim 6, wherein: the surface roughness Ra of the first transmission gear, the second transmission gear, the third transmission gear and the fourth transmission gear is 0.4-6.5 mu m.
11. An electronic lock as defined in claim 1, wherein: and the shell is provided with a lock hole for respectively accommodating the first lock rod and the second lock rod to pass through.
12. An electronic lock as defined in claim 1, wherein: the first lock rod and the second lock rod are in one or more of a cylinder, a circular truncated cone, a cone, an elliptic cylinder, an elliptic table, an elliptic cone, a polygonal column, a polygonal table and a polygonal pyramid shape.
13. The electronic lock of claim 1, wherein the first lock rod is 1mm to 95mm long and the second lock rod is 1mm to 95mm long.
14. The electronic lock of claim 1, wherein the output power of the drive means is 0.25W to 15.6W.
15. The electronic lock of claim 1, wherein the output torque of the drive device is between 0.25N-mm and 20.5N-mm.
16. The electronic lock of claim 2, wherein the rotation angle of the transmission lever is 3.5 ° to 92 °.
17. The electronic lock of claim 2, wherein the actuator rod is made of a metal or a non-metal.
18. The electronic lock of claim 2, wherein the driving rod is made of one or more of iron, copper, aluminum, zinc, nickel or tin.
19. The electronic lock of claim 2, wherein the driving rod is made of one of polyvinyl chloride, polyethylene, polyamide, polytetrafluoroethylene, tetrafluoroethylene/hexafluoropropylene copolymer, ethylene/tetrafluoroethylene copolymer, polypropylene, polyvinylidene fluoride, polyurethane, poly 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 oxide, polyester, phenolic resin, urea formaldehyde, styrene-acrylonitrile copolymer, polymethacrylate, and polyoxymethylene resin.
20. The electronic lock of claim 2, wherein the actuator lever comprises fiberglass.
21. The electronic lock of claim 1, wherein the first locking bar and the second locking bar are made of 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 oxide, polyester, phenolic resin, urea formaldehyde, styrene-acrylonitrile copolymer, polymethacrylate, and polyoxymethylene resin.
22. The electronic lock of claim 1, wherein the hardness of the first lock bar and/or the second lock bar is not less than 3 HV.
23. The electronic lock of claim 2, wherein the rack has a wear resistant coating thereon.
24. The electronic lock of claim 23, wherein the wear resistant coating comprises a ceramic, an alloy, an oxide, or a fluoroplastic.
25. The electronic lock of claim 23, wherein the wear resistant coating comprises one of gold, silver, nickel, tin-lead alloy, zinc, silver-antimony alloy, palladium-nickel alloy, graphite-silver, hard-silver, graphene-silver, and silver-gold-zirconium alloy.
26. An electronic lock according to claim 1, wherein the drive means is an electric or hydraulic motor.
27. A charging dock comprising an electronic lock as claimed in any one of claims 1 to 26, one of the first and second locking bars being for locking a dc charging gun and the other being for locking an ac charging gun.
28. The charging dock of claim 27, wherein the housing has a fixing portion, and the fixing portion is used to fix the housing to the charging dock.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210491815.9A CN114944569A (en) | 2022-05-02 | 2022-05-02 | Electronic lock and charging seat |
| PCT/CN2023/091685 WO2023213244A1 (en) | 2022-05-02 | 2023-04-28 | Electronic lock and charging base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210491815.9A CN114944569A (en) | 2022-05-02 | 2022-05-02 | Electronic lock and charging seat |
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| Publication Number | Publication Date |
|---|---|
| CN114944569A true CN114944569A (en) | 2022-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210491815.9A Pending CN114944569A (en) | 2022-05-02 | 2022-05-02 | Electronic lock and charging seat |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114944569A (en) |
| WO (1) | WO2023213244A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023213244A1 (en) * | 2022-05-02 | 2023-11-09 | 长春捷翼汽车科技股份有限公司 | Electronic lock and charging base |
| WO2024174790A1 (en) * | 2023-02-20 | 2024-08-29 | 长春捷翼汽车科技股份有限公司 | Double-locking-bar electronic lock |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107524349B (en) * | 2017-10-10 | 2022-09-30 | 浙江致威电子科技有限公司 | Electronic lock |
| KR102485343B1 (en) * | 2017-12-13 | 2023-01-05 | 현대자동차주식회사 | Locking device |
| CN109066210A (en) * | 2018-07-25 | 2018-12-21 | 广州唐太环保科技有限公司 | A kind of new-energy automobile device |
| CN210852089U (en) * | 2019-04-25 | 2020-06-26 | 安费诺精密连接器(深圳)有限公司 | Electronic lock and electric automobile subassembly that charges |
| CN113619414A (en) * | 2021-09-02 | 2021-11-09 | 长春捷翼汽车零部件有限公司 | Electronic lock, electric automobile charging seat and motor vehicle |
| CN215590507U (en) * | 2021-09-02 | 2022-01-21 | 长春捷翼汽车零部件有限公司 | Linkage device for synchronously controlling multiple lock rods, charging device and motor vehicle |
| CN114944569A (en) * | 2022-05-02 | 2022-08-26 | 长春捷翼汽车零部件有限公司 | Electronic lock and charging seat |
| CN218632653U (en) * | 2022-05-02 | 2023-03-14 | 长春捷翼汽车零部件有限公司 | Electronic lock and charging seat |
-
2022
- 2022-05-02 CN CN202210491815.9A patent/CN114944569A/en active Pending
-
2023
- 2023-04-28 WO PCT/CN2023/091685 patent/WO2023213244A1/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023213244A1 (en) * | 2022-05-02 | 2023-11-09 | 长春捷翼汽车科技股份有限公司 | Electronic lock and charging base |
| WO2024174790A1 (en) * | 2023-02-20 | 2024-08-29 | 长春捷翼汽车科技股份有限公司 | Double-locking-bar electronic lock |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023213244A1 (en) | 2023-11-09 |
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Address after: No. 957, Shunda Road, Gaoxin District, Changchun City, Jilin Province, 130000 Applicant after: Changchun Jieyi Automobile Technology Co.,Ltd. Address before: 130000 957 Shunda Road, Changchun hi tech Development Zone, Jilin Applicant before: CHANGCHUN JIEYI AUTO PARTS CO.,LTD. |