WO2023051597A1 - Electronic lock structure of planetary gear, electronic lock and motor vehicle - Google Patents

Abstract

Disclosed are an electronic lock structure of a planetary gear, an electronic lock and a motor vehicle, the electronic lock structure comprising: a driving device, a speed reducing mechanism and a lock rod. The driving device is provided with a driving shaft; the speed reducing mechanism is composed of multiple stages of planetary speed reducing gears and comprises an input end and an output end, the input end is connected to the driving shaft, and the output end is provided with an eccentric rotary shaft; and one end of the lock rod is connected to the eccentric rotary shaft, and the axis direction of the lock rod is configured to be perpendicular to the axial direction of a driving shaft of the driving device. According to the electronic lock structure, the rotation of the driving device is converted into reciprocating motion of the lock rod. The electronic lock structure of a planetary gear of the present disclosure may be designed according to needs. Electronic locks having different charging requirements may be produced by increasing the stage number of the planetary reduction gear so as to meet production requirements of charging guns of different vehicle types. Meanwhile, due to the compact structure, mounting space is saved, and miniaturization of vehicle charging gun heads is facilitated.

Description

Electronic lock structure of planetary gear, electronic lock and motor vehicle

This application claims the priority of the Chinese patent application with the application number 202122397222.X and the subject title "An Electronic Lock Structure for Planetary Gears, Electronic Locks and Motor Vehicles" filed on September 30, 2021, the entire contents of which are incorporated by reference incorporated in this application.

technical field

The invention relates to the technical field of electronic locks, and more specifically, to an electronic lock structure of a planetary gear, an electronic lock and a motor vehicle.

Background technique

With the rapid development of new energy technology, the number of new energy vehicles is also increasing. At present, in order to improve the safety of the charging process, a locking device is installed at the charging interface of the new energy vehicle. The design of the locking device restricts the development of the charging process of the new energy vehicle. It can be assembled in the limited space of charging gun or car charging interface. At present, electronic locks with rack and pinion structures on the market occupy a large volume of the car charging gun or car charging interface, which is not conducive to the miniaturization of equipment production. Therefore, how to provide an electronic lock structure for a planetary gear that can be assembled in a small space of a charging gun or a car charging interface, and requires simple structure and convenient maintenance has become a technical problem that needs to be solved urgently in this field.

Contents of the invention

An object of the present invention is to provide a new technical solution for the electronic lock structure of the planetary gear.

According to the first aspect of the present invention, there is provided an electronic lock structure for planetary gears, including:

a drive device having a drive shaft;

A reduction mechanism, the reduction mechanism is composed of a multi-stage planetary reduction gear, including an input end and an output end, the input end is connected to the drive shaft, and the output end is provided with an eccentric shaft;

a locking rod, one end of which is connected to the eccentric shaft, and the axial direction of the locking rod is not parallel to the axial direction of the drive shaft of the driving device;

The rotation of the drive shaft of the drive device is converted into the reciprocating motion of the lock bar through the reduction mechanism.

Further, the reduction mechanism includes a multi-stage planetary reduction gear, and each stage of the planetary reduction gear includes an outer ring gear, a sun gear, a planetary gear and a planetary gear carrier; the outer ring gear is fixedly arranged, and the sun gear and The outer ring gear is coaxially arranged, and the number of the planetary gears is at least three, which are respectively meshed with the outer ring gear and the sun gear. The planetary gears are respectively provided with rotating shafts that coincide with their axes. One side is rotatably connected to a plurality of the rotating shafts, and the other side of the planetary gear carrier is provided with a transmission shaft at a position coincident with the axis of the sun gear;

The multi-stage planetary reduction gears are stacked sequentially, and the transmission shaft of each stage of the planetary reduction gears is coaxially connected with the sun gear of the next stage of the planetary reduction gears;

The planetary reduction gear near the side of the drive shaft, wherein the sun gear is the input end, connected to the drive shaft;

The planetary reduction gear near the side of the lock lever, the planetary gear carrier is the output end, the eccentric shaft is arranged on the output end, the axis of the eccentric shaft is connected to the axis of the drive shaft parallel but not coincident.

Further, the reciprocating motion is one or more of stretching, translation, rotation, swing, bending, and twisting.

Further, the output power of the driving device is 0.35W-5.56W.

Further, the output torque of the drive shaft is 2.25N·mm˜9.85N·mm.

Further, the transmission ratio between the drive shaft of the drive device and the planetary gear carrier of the planetary reduction gear on the side close to the lock lever is 5/1˜90/1.

Further, the shape of the locking rod is one or more of a cylinder, a circular truncated cone, a circular truncated cone, an elliptical cylinder, an elliptical truncated cone, an elliptical cone, a polygonal prism, a polygonal truncated polygon and a polygonal pyramid.

Further, one end of the lock lever connected to the output end is provided with a mounting hole, the mounting hole is closed or open, the eccentric shaft is set in the mounting hole, and the eccentric shaft can drive the mounting hole. hole and drive the lock bar to reciprocate.

Further, the inner surface of the installation hole and the outer surface of the eccentric shaft have a wear-resistant coating; the tooth surface of the planetary reduction gear has a wear-resistant coating.

According to the second aspect of the present invention, an electronic lock is provided, comprising an electronic lock housing and an electronic lock structure of a planetary gear according to any one of the above, the electronic lock structure of a planetary gear is arranged on the electronic lock In the lock housing, a lock hole is provided on the electronic lock housing, and the lock rod protrudes from the lock hole and reciprocates;

A screw mechanism is set inside the electronic lock housing, the lock rod is sleeved on one end of the screw mechanism, and the other end of the screw mechanism extends outside the electronic lock housing, and the screw mechanism rotates to make The locking rod translates, so that the mounting hole at the end of the locking rod connected to the output end is disengaged from the eccentric shaft.

Further, the radius of the locking hole is 3mm-15mm.

According to a third aspect of the present invention, there is provided a motor vehicle, comprising the electronic lock structure of any one of the above planetary gears, and the electronic lock of any one of the above.

An electronic lock structure for a planetary gear according to the present disclosure has the following technical effects.

1. The output speed of the electronic lock structure of a planetary gear can be designed according to the needs. By increasing the number of planetary reduction gears, electronic locks with different charging requirements can be produced to meet the production requirements of charging guns for different models.

2. The electronic lock structure of a planetary gear provided by the present invention has the characteristics of compact structure. It is connected with the drive device and the lock lever as a complete unit, and the high speed of the drive device is converted into a low speed through the planetary gear reduction mechanism and transmitted to the The locking rod realizes the relatively flexible locking and unlocking work of the locking rod without damaging the lock hole and itself.

3. In the electronic lock structure of a planetary gear provided by the present invention, the axial direction of the locking rod is perpendicular to the axial direction of the drive shaft of the driving device, and the output end of the planetary gear carrier is set in the form of an eccentric shaft. The axis of the eccentric shaft is parallel to but not coincident with the axis of the drive shaft, and is used to convert the rotation of the drive device into the reciprocating motion of the lock lever, which facilitates the installation of electronic components in the small space formed between the parts. Lock, the process of miniaturizing the car charging gun.

4. The electronic lock structure of a planetary gear provided by the present invention, by setting the screw structure, when it is necessary to separate the car charging gun from the car charging interface, the electronic lock fails, so that the car charging gun cannot be connected to the car through normal operation. The charging interface is separated, and the installation hole at one end of the lock rod can be separated from the eccentric shaft by rotating the screw structure, so that the lock rod can be separated from the lock hole on the car charging interface, and the car charging gun and the car charging gun can be avoided when the electronic lock fails. The car charging interface cannot be separated.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings.

Description of 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 the schematic diagram of the electronic lock structure of planetary gear provided by the present invention;

Fig. 2 is a schematic diagram of a side structure of a planetary reduction gear in the present invention;

Fig. 3 is a schematic diagram of another side structure of the planetary reduction gear in the present invention.

The diagram is marked as follows:

1. Driving device;

2. Speed reduction mechanism;

3. Planetary reduction gear;

4. Eccentric shaft;

5. Lock lever;

6. Outer ring gear;

7. Sun wheel;

8. Planetary gear;

9. Planetary gear carrier;

10. Shaft;

11. Mounting hole;

12. Transmission shaft.

Detailed ways

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 arrangements of components and steps, 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 in no way taken as limiting the invention, its application or uses.

Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

In all examples shown and discussed herein, any specific values should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have different values.

As shown in FIGS. 1 to 3 , an electronic lock structure of a planetary gear 8 in the present disclosure includes:

The drive device 1 has a drive shaft;

A reduction mechanism 2, the reduction mechanism 2 is composed of a multi-stage planetary reduction gear 3, including an input end and an output end, the input end is connected to the drive shaft, and the output end is provided with an eccentric shaft 4;

One end of the locking rod 5 is connected to the eccentric shaft 4, and the axial direction of the locking rod 5 is arranged perpendicular to the axial direction of the drive shaft of the driving device 1;

The rotation of the driving shaft of the driving device 1 is converted into the reciprocating motion of the locking rod 5 through the reduction mechanism 2 .

During specific implementation, the driving device 1 is a rotary motor. By arranging the multi-stage planetary reduction gear 3, the high rotational speed of the drive shaft of the rotary motor can be converted into the low rotational speed of the eccentric shaft 4, and by aligning the axial direction of the lock bar 5 with the The driving shaft of the driving device 1 is vertically arranged in the axial direction, and the moving direction of the locking rod 5 connected to the eccentric shaft 4 changes relative to the rotating direction of the driving shaft of the driving device 1 . The reduction mechanism 2 composed of multi-stage planetary reduction gear 3 has the characteristics of compact structure. It is connected with the drive device 1 and the lock lever 5 as a complete unit, and the high speed of the drive device 1 is converted into low speed transmission through the planetary gear 8 reducer. For the lock bar 5, the lock bar 5 realizes the work of locking and unlocking relatively flexibly without damaging the lock hole and itself.

In a specific embodiment of the electronic lock structure of the present disclosure, the reduction mechanism 2 includes a multi-stage planetary reduction gear 3, and each of the planetary reduction gears 3 at each stage includes an outer ring gear 6, a sun gear 7, a planetary gear 8 and a planetary gear Gear frame 9; the external ring gear 6 is fixedly arranged, the sun gear 7 is coaxially arranged with the external ring gear 6, and the number of the planetary gears 8 is at least three, respectively connected to the external ring gear 6 and the external ring gear 6 The sun gear 7 meshes with the sun gear 7, and the planetary gears 8 are respectively provided with rotating shafts 10 coincident with their axes. The drive shaft 12 is set at the position where the axis of the sun gear 7 coincides;

The multi-stage planetary reduction gears 3 are stacked sequentially, and the transmission shaft 12 of each stage of the planetary reduction gears 3 is coaxially connected with the sun gear 7 of the next stage of the planetary reduction gears 3;

The planetary reduction gear 3 close to the side of the drive shaft, wherein the sun gear 7 is the input end, connected with the drive shaft;

The planetary reduction gear 3 close to the side of the lock lever 5, wherein the planetary gear carrier 9 is the output end, the eccentric shaft 4 is arranged on the output end, the axis of the eccentric shaft 4 is in line with the The axes of the drive shafts are parallel but not coincident.

Further, the reciprocating motion is one or more of stretching, translation, rotation, swing, bending, and twisting.

During specific implementation, it can be designed according to needs, by increasing the number of stages of the planetary reduction gear 3, the required speed of the output end of the electronic lock structure can be obtained to produce electronic locks with different charging requirements, so as to meet the production requirements of charging guns of different models.

During specific implementation, by setting the axial direction of the locking rod 5 perpendicular to the axial direction of the drive shaft of the drive device 1, and making the output end of the planetary gear carrier 9 set as the eccentric shaft 4, the axis of the eccentric shaft 4 is aligned with the drive shaft. The axes of the shafts are parallel but not coincident, and are used to change the rotation of the driving device 1 into the reciprocating motion of the lock bar 5; it is convenient to install an electronic lock in the small space formed between the parts to realize the charging of the car For the miniaturization of the gun, by changing the distance between the eccentric shaft 4 and the extension line in the axial direction of the drive shaft and the intersection of the planetary gear carrier 9 near the side of the locking bar 5, the distance of the reciprocating movement of the end of the locking bar 5 can be changed , in actual production, select according to the needs.

In a specific embodiment of the electronic lock structure of the present disclosure, the output power of the driving device 1 is 0.35W-5.56W.

During specific implementation, the output power of the driving device 1 determines the working speed of the electronic lock structure. The higher the power, the faster the electronic lock structure completes the work, and the smaller the power, the slower the electronic lock structure completes the work. The rotational torque of the shaft is insufficient or unable to complete the locking work of the locking bar 5 . In order to test the influence of the output power of the driving device 1 on the lock bar 5, the inventor has carried out related tests. The test method is to select the drive device 1 with different output power, the lock bar 5 has the same structure, and the reduction mechanism 2 is the same. 1 Continuously work for 1 minute, record the number of times the lock lever 5 completes the work, the number of times greater than or equal to 40 is qualified, and less than 40 is unqualified. If there is abnormal sound when the lock bar 5 is working, it is also considered as unqualified. The results are shown in Table 1.

Table 1: Effects of different output powers on the speed and abnormal sound of the locking lever 5

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
Completions	38	45	47	53	56	59	62	63	64	66	70	72	72
Is it abnormal	no	no	no	no	no	no	no	no	no	no	no	no	yes

As shown in Table 1, when the output power of the drive device 1 is less than 0.35W, the number of switches completed by the electronic lock structure within 1 minute is less than 40 times, and the speed is too slow to be unqualified, so the inventor selected the minimum power of the drive device 1 as 0.35W, when the output power of the drive device 1 is greater than 5.56W, the electronic lock structure will enter the bottleneck period due to the influence of the overall design, there will be no obvious improvement, and abnormal noise will appear at the same time, so the output power of the drive device 1 selected by the inventor It is 0.35W～5.56W. Specifically, it can be 0.9W, 0.96W, 1W, 1.3W, etc. wait.

In a specific embodiment of the electronic lock structure of the present disclosure, the output torque of the drive shaft is 2.25N·mm˜9.85N·mm.

During specific implementation, the torque of the driving device 1 determines the magnitude of the force applied to the lock bar 5. Taking the rotating motor as an example, if the torque is not enough, the lock bar 5 cannot be driven to complete the switching action of the electronic lock. In order to verify the rotation of different torques The inventor has carried out relevant tests on the influence of the motor on the electronic lock switch. The test method is to select rotating motors with different torques. The other structures of the electronic lock are the same. The rotating motor that can normally drive the lock bar 5 to work is qualified, otherwise it is unqualified. At the same time, if the electronic lock makes abnormal noise during the working process, it is also considered unqualified. The test results are shown in Table 2:

Table 2: Whether rotating motors with different torques can normally drive the lock lever 5 to work

Torque (N·mm)	2.15	2.25	2.90	3.65	3.90	4.45	5.10	5.50	6.20	7.40	8.60	9.85	10
Can work	no	able	able	able	able	able	able	able	able	able	able	able	able
Is it abnormal	no	no	no	no	no	no	no	no	no	no	no	no	yes

As shown in Table 1, when the torque of different rotating motors is less than 2.25N·mm, the locking lever 5 cannot be driven to work, so the inventor chooses the minimum torque of the rotating motor to be 2.25N·mm. When the torque is greater than 9.85N mm, it can also drive the lock lever 5 to work, but because the torque is too large, there will be abnormal noise when the electronic lock is working, so the torque of the driving device 1 selected by the inventor is 2.25N mm～9.85N· mm. Specifically, it may be 4.90 N·mm or 6.50 N·mm.

In a specific embodiment of the electronic lock structure of the present disclosure, the transmission ratio between the drive shaft of the drive device 1 and the planetary gear carrier 9 of the planetary reduction gear 3 on the side close to the lock lever 5 is 5/1～ 90/1.

During specific implementation, the transmission ratio between the driving device 1 and the planetary gear carrier 9 is 5/1˜90/1. If the transmission ratio is too large, it will take more response time, and if the control is not precise, abnormal noise will easily occur.

Therefore, the inventor chose different transmission ratios for testing, and observed the number of times the locking or opening actions were completed within 1 minute. Less than 40 times were unqualified, and abnormal noise was also unqualified. The results are shown in Table 3.

Table 3: Effects of different transmission ratios on the speed of electronic locks

transmission ratio	4/1	5/1	8/1	30/1	45/1	80/1	90/1	95/1
Completions	38	40	47	52	55	58	61	63
Is it abnormal	no	no	no	no	no	no	no	yes

It can be seen from Table 3 that if the transmission ratio is too small, the locking or opening actions of the electronic lock within 1 minute are less than 40 times, so it is unqualified. At the same time, if the transmission ratio is greater than 90/1, the abnormal sound of the electronic lock is also unqualified , so the inventor chooses the transmission ratio between the driving device 1 and the locking rod 5 to be 5/1 to 90/1.

Further, the shape of the locking rod 5 is one or more of cylinder, circular truncated cone, elliptical prism, elliptical truncated elliptical cone, polygonal prism, polygonal truncated polygon and polygonal pyramid.

During specific implementation, the shape of the lock bar 5 can be selected according to the shape of the lock hole, and there is no special limitation here.

In a specific embodiment of the electronic lock structure of the present disclosure, an installation hole 11 is provided at the end of the lock lever 5 connected to the output end, the installation hole 11 is in a closed or open state, and the eccentric shaft 4 is arranged on the In the mounting hole 11, the eccentric shaft 4 can drive the mounting hole 11 and drive the locking rod 5 to reciprocate.

During specific implementation, the installation hole 11 is provided at the end where the lock bar 5 is connected to the output end, which facilitates the connection between the lock bar 5 and the reduction mechanism 2, and facilitates assembly and maintenance.

Further, the inner surface of the installation hole 11 and the outer surface of the eccentric shaft 4 have a wear-resistant coating; the tooth surface of the planetary reduction gear 3 has a wear-resistant coating.

During specific implementation, the service life of the electronic lock structure can be extended by setting the wear-resistant coating.

Furthermore, the material of the wear-resistant coating includes ceramics, alloys, oxides or fluoroplastics.

Preferably, the wear-resistant coating comprises one 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 one or more species.

In order to verify the corrosion resistance of different wear-resistant coatings, the inventor has carried out relevant tests, put the relevant test samples into the salt spray test chamber, spray salt spray to each position of the test samples, every 20 Take it out and clean it every hour to observe the surface corrosion, that is, one cycle, until the surface corrosion area of the test sample is greater than 10% of the total area, stop the test, and record the number of cycles at that time. In this embodiment, the number of cycles less than 80 is considered unqualified. The number of frictions in Table 4 is that the test sample is fixed on the test bench, and after every 100 contact friction tests, it is necessary to stop to observe the damage of the wear-resistant coating of the test sample, scratches appear, and the test sample is exposed. If the material of the piece itself is not used, the experiment is stopped, and the number of frictions at that time is recorded. In this embodiment, the number of frictions less than 8000 times is unqualified.

Table 4: The impact of friction times and corrosion resistance on test samples of different coating materials

It can be seen from the above table 4 that 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 , the performance is relatively stable. When selecting the coating material as nickel, tin, tin-lead alloy, zinc, the experimental results also can meet the requirements, therefore, the inventor selects the coating material as gold, silver, nickel, tin, tin-lead alloy, zinc, hard silver silver antimony One or more of alloy, palladium, palladium-nickel alloy, graphite silver, graphene silver and silver-gold-zirconium alloy.

An electronic lock, comprising an electronic lock housing and an electronic lock structure in any embodiment, the electronic lock structure is arranged in the electronic lock housing, a lock hole is arranged on the electronic lock housing, the The lock bar 5 stretches out from the lock hole and moves back and forth;

A screw mechanism is arranged in the housing of the electronic lock, the locking rod 5 is sleeved on one end of the screw mechanism, and the other end of the screw mechanism extends outside the housing of the electronic lock, and the screw mechanism rotates to The locking rod 5 is translated so that the mounting hole 11 at the end of the locking rod connected to the output end is disengaged from the eccentric shaft 4 .

During specific implementation, by setting the screw structure, when it is necessary to separate the car charging gun from the car charging interface, the electronic lock fails, so that the car charging gun cannot be separated from the car charging interface through normal operation, and the car charging gun can be separated from the car charging interface by rotating the screw structure. The mounting hole 11 at one end of the lock lever 5 is separated from the eccentric shaft 4, and then the lock lever 5 is separated from the lock hole on the car charging interface or the charging gun by external force, so as to prevent the car charging gun and the car charging gun from being disconnected when the electronic lock fails. A situation arises where the interface cannot be separated.

Further, the radius of the locking hole is 3mm-15mm.

During specific implementation, the radius of the lockhole is 3mm-15mm, if the radius of the lockhole is too small, only a thinner lock rod 5 can be selected, and if the radius of the lockhole is too large, it is necessary to increase the seal on the inner wall of the lockhole. device, it is difficult to carry out actual production. In order to verify the influence of the radius of the keyhole on the structure of the electronic lock, the inventor has carried out related tests. The inventor selects lockholes of different radii for use, and selects the lock bar 5 matched therewith. Taking the lock rod 5 made of polyvinyl chloride as an example, the lock rod 5 with different radii is selected, and the bending test is carried out on the lock rod 5. If the bending test occurs because the radius is too small, it is unqualified. Then carry out the work test, select different lock rods 5, and other structures are the same, and carry out the switch lock test. Due to the excessive radius of the lock rod, it is unqualified to produce abnormal noise when it touches other parts. The test results are shown in Table 5.

Table 5: The bending situation of the lock rod corresponding to the lock hole with different radii and whether there is any abnormal sound

Radius (mm)	2	3	5	6	8	11	13	15	16
Whether to bend	yes	no	no	no	no	no	no	no	no
Is it abnormal	no	no	no	no	no	no	no	no	yes

As shown in Table 5, when the radius of the lock hole is less than 3mm, the strength of the matching lock rod 5 drops a lot, and it is very easy to bend in some bumps and affect normal use. And when the radius of the lockhole is greater than 15mm, the radius of the lock bar 5 matched with it is also very easy to touch with other devices to generate abnormal noise because of the increase, which is also unqualified. Therefore, the inventor selects the radius of keyhole as 3mm-15mm.

A motor vehicle, comprising an electronic lock structure for a planetary gear in any one of the above embodiments, and the electronic lock in any one of the above embodiments.

Although some specific embodiments of the present invention have been described in detail through examples, those skilled in the art should understand that the above examples are for illustration only and not intended to limit the scope of the present invention. Those skilled in the art will appreciate 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 (12)

1. An electronic lock structure for a planetary gear, characterized in that it comprises:

   a drive device having a drive shaft;

   A reduction mechanism, the reduction mechanism is composed of a multi-stage planetary reduction gear, including an input end and an output end, the input end is connected to the drive shaft, and the output end is provided with an eccentric shaft;

   a locking rod, one end of which is connected to the eccentric shaft, and the axial direction of the locking rod is not parallel to the axial direction of the drive shaft of the driving device;

   The rotation of the drive shaft of the drive device is converted into the reciprocating motion of the lock bar through the reduction mechanism.
2. An electronic lock structure for planetary gears according to claim 1, wherein the reduction mechanism comprises multi-stage planetary reduction gears, and the planetary reduction gears of each stage include an outer ring gear, a sun gear, a planetary gear and a planetary gear. gear frame; the outer ring gear is fixedly arranged, the sun gear is arranged coaxially with the outer ring gear, and the number of the planetary gears is at least three, which are respectively meshed with the outer ring gear and the sun gear. The planetary gears are respectively provided with rotating shafts coincident with their axes, one side of the planetary gear carrier is rotatably connected to a plurality of the rotating shafts, and the other side of the planetary gear carrier is provided with a transmission shaft at a position coincident with the axis of the sun gear;

   The multi-stage planetary reduction gears are stacked sequentially, and the transmission shaft of each stage of the planetary reduction gears is coaxially connected with the sun gear of the next stage of the planetary reduction gears;

   The planetary reduction gear near the side of the drive shaft, wherein the sun gear is the input end, connected to the drive shaft;

   The planetary reduction gear near the side of the lock lever, the planetary gear carrier is the output end, the eccentric shaft is arranged on the output end, the axis of the eccentric shaft is connected to the axis of the drive shaft parallel but not coincident.
3. The electronic lock structure for planetary gears according to claim 1, wherein the reciprocating motion is one or more of expansion, translation, rotation, swing, bending, and twisting.
4. The electronic lock structure of planetary gear according to claim 1, characterized in that the output power of the driving device is 0.35W-5.56W.
5. The electronic lock structure of planetary gear according to claim 1, characterized in that the output torque of the drive shaft is 2.25N·mm-9.85N·mm.
6. The electronic lock structure of a planetary gear according to claim 1, wherein the transmission ratio between the drive shaft of the drive device and the planetary gear carrier of the planetary reduction gear on the side close to the lock lever is 5 /1～90/1.
7. An electronic lock structure for planetary gears according to claim 1, characterized in that the shape of the lock rod is a cylinder, a circular truncated cone, a circular cone, an elliptical cylinder, an elliptical platform, an elliptical cone, a polygonal prism, a polygonal truncated polygon and a polygonal pyramid one or more of.
8. The electronic lock structure of planetary gear according to claim 1, characterized in that, an installation hole is provided at the end of the lock lever connected to the output end, the installation hole is in a closed or open state, and the eccentric shaft is provided with In the installation hole, the eccentric shaft can drive the installation hole and drive the lock bar to reciprocate.
9. The electronic lock structure of a planetary gear according to claim 8, wherein the inner surface of the mounting hole and the outer surface of the eccentric shaft have a wear-resistant coating; the tooth surface of the planetary reduction gear has a wear-resistant plating.
10. An electronic lock, characterized in that it comprises an electronic lock housing and an electronic lock structure of a planetary gear according to any one of claims 1-9, the electronic lock structure of a planetary gear is arranged on the In the electronic lock housing, a lock hole is arranged on the electronic lock housing, and the lock rod protrudes from the lock hole and reciprocates;

    A screw mechanism is set inside the electronic lock housing, the lock rod is sleeved on one end of the screw mechanism, and the other end of the screw mechanism extends outside the electronic lock housing, and the screw mechanism rotates to make the The lock bar is translated in translation, so that the installation hole at the end of the lock bar connected to the output end is separated from the eccentric shaft.
11. The electronic lock according to claim 10, characterized in that, the radius of the lock hole is 3mm-15mm.
12. A motor vehicle, characterized by comprising the electronic lock structure of a planetary gear according to any one of claims 1 to 9, and the electronic lock according to claim 10 or 11.

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