CN218815758U

CN218815758U - Electronic lock transmission structure, electronic lock and motor vehicle

Info

Publication number: CN218815758U
Application number: CN202222433164.6U
Authority: CN
Inventors: 王超; 李佳成
Original assignee: Changchun Jetty Automotive Parts Co Ltd
Current assignee: Changchun Jetty Automotive Parts Co Ltd
Priority date: 2022-09-14
Filing date: 2022-09-14
Publication date: 2023-04-07
Anticipated expiration: 2032-09-14

Abstract

The utility model discloses an electronic lock transmission structure, an electronic lock and motor vehicle, a serial communication port, include: actuating mechanism, transmission and the output device who connects gradually, transmission includes the screw rod, output device includes drive disk assembly and locking lever, drive disk assembly one end sets up the screw hole, and the other end is connected with the locking lever, the screw rod with the screw hole spiro union, the screw rod rotates and drives drive disk assembly reciprocating motion, thereby drive locking lever reciprocating motion. The utility model discloses an electronic lock transmission structure not only stabilizes and can also increase mechanical structure's speed reduction ratio, improves the ejecting power of electronic lock output, and then improves the charging process security.

Description

Electronic lock transmission structure, electronic lock and motor vehicle

Technical Field

The utility model relates to an electronic lock makes technical field, more specifically relates to an electronic lock transmission structure and an electronic lock and motor vehicle.

Background

With the vigorous development of the automobile industry, new energy electric automobiles have the characteristics of clean energy, quiet running, no pollution emission during running and the like, are more and more popular, and the charging guns related to the new energy electric automobiles play a vital role in the electric automobiles, so that the new energy electric automobiles are more and more valued by production parties. Meanwhile, the wide use of the charging gun makes the electronic lock of the charging gun more and more receive attention of people, the types of the electronic lock are also various, and in the market with intense competition, the stability, the sensitivity, the energy conservation and the durability of the electronic lock become the key points for the research of various manufacturers. As is known, an electronic lock generally uses a small motor with a small current, and the micro motor generally rotates at a high speed to realize a large rotation torque of the micro motor. The driving mechanism in the traditional electronic lock can generate friction force due to mutual matching of the transmission mechanisms, so that electric energy and motor torque are greatly consumed, the service life of a battery of the electronic lock is too short, noise is easy to generate, and the wear of a micro motor gear set and the instability of the driving mechanism of the electronic lock are easily caused. Therefore, in view of safety, the ejection force of the electronic lock is an important core requirement for each large host factory, but the current electronic lock has a small reduction ratio and insufficient ejection force, and therefore, a new solution is needed in the prior art to solve the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an electronic lock transmission structure with stable structure and high ejection force.

The utility model provides an electronic lock transmission structure, include: actuating mechanism, transmission and the output device who connects gradually, transmission includes the screw rod, output device includes drive disk assembly and locking lever, drive disk assembly one end sets up the screw hole, and the other end is connected with the locking lever, the screw rod with the screw hole spiro union, the screw rod rotates and drives drive disk assembly reciprocating motion, thereby drive locking lever reciprocating motion.

In a preferred embodiment, the transmission further comprises a first helical gear, a second helical gear, a third helical gear, a fourth helical gear; the driving mechanism is provided with an output shaft, and the output shaft is coaxially connected with the first bevel gear; the first helical gear is meshed with the second helical gear, the third helical gear is coaxially connected with the second helical gear, the third helical gear is meshed with the fourth helical gear, and the screw rod is coaxially connected with the fourth helical gear.

In a preferred embodiment, the diameter of the first beveled gear is smaller than the diameter of the second beveled gear; the diameter of the third helical gear is smaller than the diameter of the fourth helical gear.

In a preferred embodiment, the tooth surfaces of the first helical gear, the second helical gear, the third helical gear and the fourth helical gear are provided with wear-resistant coatings.

In a preferred embodiment, the drive mechanism is an electric or hydraulic motor.

In a preferred embodiment, the output of the drive mechanism is 0.6W to 6.5W.

In a preferred embodiment, the output torque of the output shaft is 2.2N · mm to 12N · mm.

In a preferred embodiment, the transmission ratio of the driving mechanism to the fourth helical gear is 20/1 to 100/1.

The utility model also provides an electronic lock, including the electronic lock casing and as above an electronic lock transmission structure, electronic lock transmission structure sets up in the electronic lock casing, set up on the electronic lock casing and be used for the lockhole that the locking lever passes through.

The utility model discloses provide a motor vehicle simultaneously, include as above an electronic lock transmission structure and/or as above the electronic lock.

The utility model has the advantages that:

1. the utility model discloses an electronic lock transmission structure adopts actuating mechanism drives transmission rotates, transmission rotates and drives output device reciprocating motion, and output device reciprocating motion drives locking lever reciprocating motion, overall structure is firm.

2. The utility model discloses an electronic lock transmission structure adopts the helical gear meshing, and the pinion drives the gear wheel and rotates, reaches speed reduction effect, can provide great reduction ratio to export great ejecting power.

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

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the 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 view of another embodiment of the transmission structure of the electronic lock according to the present invention.

The figures are labeled as follows: 1-driving mechanism, 2-output shaft, 3-first helical gear, 4-second helical gear, 5-third helical gear, 6-fourth helical gear, 7-screw, 8-transmission component and 9-locking rod.

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: unless specifically stated otherwise, 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.

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 merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

An electronic lock actuator structure, as shown in fig. 1, comprising: actuating mechanism 1, transmission and the output device who connects gradually, transmission includes screw rod 7, output device includes drive disk assembly 8 and

locking lever

9, 8 one end of drive disk assembly sets up the screw hole, and the other end is connected with locking lever 9, screw rod 7 with the screw hole spiro union, screw rod 7 rotates the drive 8 reciprocating motion of drive disk assembly, thereby drive locking lever 9 reciprocating motion.

The transmission device is connected with the driving mechanism 1, when the driving mechanism 1 works, the output rotary motion drives the screw rod 7 of the transmission device to rotate, the screw rod 7 rotates to drive the transmission part 8 to reciprocate, the lock rod 9 is connected with the transmission part 8, and the transmission part 8 reciprocates to drive the lock rod 9 to reciprocate so as to complete the action of unlocking or locking.

In some embodiments, as shown in fig. 1, the transmission further comprises a first helical gear 3, a second helical gear 4, a third helical gear 5, a fourth helical gear 6; the driving mechanism 1 is provided with an output shaft 2, and the output shaft 1 is coaxially connected with the first bevel gear 3; the first helical gear 3 is meshed with the second helical gear 4, the third helical gear 5 is coaxially connected with the second helical gear 3, the third helical gear 5 is meshed with the fourth helical gear 6, and the screw 7 is coaxially connected with the fourth helical gear 6.

When the driving mechanism 1 drives the output shaft 2 to rotate, the first helical gear rotates along with the output shaft 2, the second helical gear 4 meshed with the first helical gear 3 also rotates, the third helical gear 5 is coaxially connected with the second helical gear 4, under the rotation of the second helical gear 4, the third helical gear 5 also rotates, the fourth helical gear 6 meshed with the third helical gear 5 also rotates along with the third helical gear, the screw 7 is coaxially connected with the fourth helical gear 6, the screw 7 rotates under the driving of the fourth helical gear 6, the transmission part 8 in threaded connection with the screw 7 also reciprocates along with the screw, the lock rod 9 is connected with the transmission part 8, the transmission part 8 reciprocates to drive the lock rod 9 to reciprocate, and the unlocking or locking actions are completed.

In some embodiments, as shown in fig. 1, the diameter of the first bevel gear 3 is smaller than the diameter of the second bevel gear 4; the diameter of the third helical gear 5 is smaller than the diameter of the fourth helical gear 6.

When the driving mechanism 1 drives the output shaft 2 to rotate, the first bevel gear rotates along with the output shaft 2, the first bevel gear 3 drives the second bevel gear 4 to rotate, and because the diameter of the first bevel gear 3 is smaller than that of the second bevel gear 4, the first bevel gear 3 drives the second bevel gear 4 to rotate, the rotating speed is slowed down, and the first-stage speed reduction is completed; the third helical gear 5 is coaxially connected with the second helical gear 4, under the rotation of the second helical gear 4, the third helical gear 5 also rotates, the fourth helical gear 6 meshed with the third helical gear also rotates along with the third helical gear, and because the diameter of the third helical gear 5 is smaller than that of the fourth helical gear 6, the third helical gear 5 drives the fourth helical gear 6 to rotate, the rotating speed is reduced, the second-stage speed reduction is completed, and therefore the high-speed rotation output to the driving mechanism 1 is changed into the relatively low-speed rotation.

Furthermore, the tooth surfaces of the first helical gear 3, the second helical gear 4, the third helical gear 5 and the fourth helical gear 6 are provided with wear-resistant coatings.

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

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 the following table 1 is to put the related test sample piece into a salt spray test box, spray salt spray to each position of the test sample piece, take out the test sample piece every 20 hours, clean and observe the surface corrosion condition, namely a period, stop the test until the surface corrosion area of the test sample piece is more than 10% of the total area, and record the period number at that time. In this example, the number of cycles less than 80 was considered to be unacceptable. The friction times in table 1 are to fix the test sample on the experiment table, and each time the test sample is subjected to 100 contact friction tests, the test sample is stopped to observe the damage condition of the wear-resistant coating of the test sample, the test sample is scratched, the material of the test sample is exposed, the experiment is stopped, and the friction times at that time are recorded. In the present embodiment, the number of rubs is less than 8000, which is not acceptable.

Table 1: the test samples made of different coating materials are influenced by the friction times and the corrosion resistance

As can be seen from table 1 above, when the selected 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 plating layer is made of nickel, tin-lead alloy and zinc, the experimental result can meet the requirement, so that the inventor selects the plating layer to be made of one or more of gold, silver, nickel, tin-lead alloy, zinc, hard silver-antimony alloy, palladium-nickel alloy, graphite silver, graphene silver and silver-gold-zirconium alloy.

In some embodiments, the drive mechanism 1 is an electric or hydraulic motor.

In some embodiments, the output power of the driving mechanism 1 is 0.6W to 6.5W.

The output power of the driving mechanism 1 determines the operating speed of the transmission, the higher the power, the faster the speed of completing the operation, and the lower the power, the slower the speed of completing the operation of the transmission so that the movement of the lock lever 9 cannot be completed. In order to test the influence of the output power on the work of the transmission device, the inventor conducts related tests, the test method is to select the driving mechanisms 1 with different output powers, the structure of the transmission device is the same, each driving mechanism 1 continuously works for 1 minute, the number of times of the transmission device completing the work is recorded, the number of times is greater than or equal to 40, and the number is not greater than 40. If abnormal noise occurs during the operation of the transmission, the transmission is also regarded as unqualified. The results are shown in Table 2.

Table 2: influence of different output powers on the operating speed and abnormal sound of the transmission

Power (W)	0.56	0.6	0.7	0.8	1.5	2.2	2.9	3.5	4.3	4.8	5.5	6.5	6.8
														Number of completions	38	40	47	52	55	58	61	63	65	66	70	71	71
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 2, when the output power of the driving mechanism 1 is less than 0.6W, the number of times of complete switching of the transmission 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 mechanism 1 to be 0.6W, and when the output power of the driving mechanism 1 is greater than 6.5W, the speed of the transmission is affected by the overall design to enter a bottleneck period, which does not significantly increase, and meanwhile, abnormal sound also occurs, so the output power of the driving mechanism 1 selected by the inventor is 0.6W-6.5W. Specifically, it may be 0.9W, 0.96W, 1W, 1.08W, 2W, 3W or the like.

In some embodiments, the output torque of the output shaft 2 is 2.2N · mm to 12N · mm.

The output torque of the driving mechanism 1 determines the force applied to the transmission device, if the torque is not enough, the locking rod 9 cannot be driven to work, in order to verify the influence of the driving mechanisms 1 with different output torques on the opening and closing of the locking rod 9, the inventor performs related tests, the testing method is to select the driving mechanisms 1 with different output torques, other structures are the same, the driving mechanisms 1 capable of normally driving the locking rod 9 to work are qualified, otherwise, the driving mechanisms are unqualified, and if abnormal sound occurs in the work of the speed reducer, the driving mechanisms are also considered to be unqualified. The test results are shown in table 3:

table 3: whether the driving mechanism 1 with different output torques can normally drive the lock rod 9 to work or not

As shown in table 3, since the lock lever 9 cannot be actuated when the output torque of the drive mechanism 1 is less than 2.2N · mm, the inventor selected the minimum output torque of the drive mechanism 1 to be 2.2N · mm. When the output torque is larger than 12 N.mm, the lock rod 9 can be driven to work, but the output torque is too large, so that abnormal sound can occur when the transmission works, and the output torque of the driving mechanism 1 selected by the inventor is 2.2 N.mm-12 N.mm.

Specifically, it may be 3.5 N.mm, 4 N.mm, 6 N.mm, 8 N.mm, 10N.mm, or the like.

Furthermore, the transmission ratio of the driving mechanism 1 to the fourth bevel gear 6 is 20/1-100/1.

Too large a transmission ratio of the drive mechanism 1 to the fourth helical gear 6 requires more response time, and if too small, it is liable to be noisy due to control inaccuracies. Therefore, the inventors selected different transmission ratios of the drive mechanism 1 and the fourth helical gear 6 to test, observed the number of times of completion of the locking or unlocking operation of the lock lever 9 in 1 minute, and found that the test was not good if the number of times was less than 40 times, and found that the test was also good if abnormal noise occurred during the test, and the results are shown in table 4.

Table 4: influence of the transmission ratio of different drive mechanisms 1 and fourth bevel gears 6 on the number of completions

Transmission ratio

15/1

20/1

50/1

65/1

70/1

80/1

85/1

90/1

100/1

120/1

Number of completions

38

40

47

52

55

58

61

63

65

66

Whether abnormal sound is present or not

Whether or not

Is that

As can be seen from table 4, when the transmission ratio between the driving mechanism 1 and the fourth helical gear 6 is too small, the lock lever 9 fails to perform the locking or unlocking operation less than 40 times in 1 minute, and when the transmission ratio between the driving mechanism 1 and the fourth helical gear 6 is greater than 100/1, the transmission device fails to perform abnormal sound, so the transmission ratio between the driving mechanism 1 and the fourth helical gear 6 is selected to be 20/1 to 100/1 by the inventor.

The utility model also provides an electronic lock, including the electronic lock casing and as above an electronic lock transmission structure, electronic lock transmission structure sets up in the electronic lock casing, set up on the electronic lock casing and be used for the lockhole that locking lever 9 passes through, locking lever 9 follows stretch out and be reciprocating motion in the lockhole.

The utility model also provides a motor vehicle, include as above an electronic lock transmission structure and/or as above the electronic lock.

Although certain specific embodiments of the present invention have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may 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

1. An electronic lock transmission structure, comprising:

a driving mechanism, a transmission device and an output device which are connected in sequence,

the transmission device comprises a screw rod, the output device comprises a transmission part and a lock rod, one end of the transmission part is provided with a threaded hole, the other end of the transmission part is connected with the lock rod, the screw rod is in threaded connection with the threaded hole, and the screw rod rotates to drive the transmission part to reciprocate so as to drive the lock rod to reciprocate.

2. The electronic lock transmission structure according to claim 1, wherein the transmission device further comprises a first helical gear, a second helical gear, a third helical gear, a fourth helical gear;

the driving mechanism is provided with an output shaft which is coaxially connected with the first bevel gear;

the first helical gear is meshed with the second helical gear, the third helical gear is coaxially connected with the second helical gear, the third helical gear is meshed with the fourth helical gear, and the screw rod is coaxially connected with the fourth helical gear.

3. The electronic lock transmission structure as claimed in claim 2, wherein the diameter of the first bevel gear is smaller than the diameter of the second bevel gear; the diameter of the third helical gear is smaller than the diameter of the fourth helical gear.

4. The electronic lock transmission structure according to claim 2, wherein the tooth surfaces of the first helical gear, the second helical gear, the third helical gear and the fourth helical gear are provided with wear-resistant coatings.

5. An electronic lock transmission according to claim 1, wherein the drive mechanism is an electric or hydraulic motor.

6. The electronic lock transmission structure as claimed in claim 1, wherein the output power of the driving mechanism is 0.6W-6.5W.

7. An electronic lock transmission according to claim 2, wherein the output torque of the output shaft is from 2.2N-mm to 12N-mm.

8. The electronic lock transmission structure of claim 2, wherein the transmission ratio of the driving mechanism to the fourth bevel gear is 20/1-100/1.

9. An electronic lock comprising an electronic lock housing and an electronic lock actuator as claimed in any one of claims 1 to 8, the electronic lock actuator being disposed in the electronic lock housing, the electronic lock housing being provided with a locking aperture for passage of the locking bar.

10. A motor vehicle comprising an electronic lock transmission according to any one of claims 1 to 8 and/or an electronic lock according to claim 9.