Stop transmission and electronic lock for a charging seat of a vehicle

Abstract

The utility model relates to a retaining transmission device and an electronic lock used for a charging seat of a vehicle, the retaining transmission device (100) is used for a motor output gear (200), the retaining transmission device (100) comprises a main body (110) and a support frame (120), the main body (110) comprises a motor joint gear (111), the motor joint gear (111) is meshed with the motor output gear (200) so as to transmit power of the motor output gear (200), and the support frame (120) is used for supporting the motor output gear (200). And a meshing gap is formed between teeth of the motor joint gear (111) and teeth of the motor output gear (200).

Description

Technical Field

[0001] This utility model relates to a backstop transmission device for a motor output gear and an electronic lock for a vehicle charging dock. Background Technology

[0002] Electronic locks are crucial components of AC charging docks for electric vehicles. During the charging process, they lock the charging gun and signal to the vehicle that the charging gun is locked. Currently, the internal transmission structure of electronic locks consists of a motor output gear that drives an intermediate transmission gear set. This intermediate gear set then transmits the motor's power to the locking lever rack, which in turn locks and unlocks the vehicle. These three gear sets mesh to operate the electronic lock. However, in the operation of existing electronic locks, when the locking lever extends or retracts, at the moment of power failure, the motor output gear experiences a slight rotation. This slight rotation can cause related gears to rotate, leading to the locking lever retracting. Utility Model Content

[0003] In order to overcome the above-mentioned or other defects in the prior art, this utility model proposes a backstop transmission device, which is connected between the motor output gear and the transmission gear. There is a meshing gap between the teeth of the motor output gear and the backstop transmission device to buffer the slight rotation of the motor output gear, thereby overcoming the problem of the lock lever retraction of the electronic lock.

[0004] According to one embodiment of the present invention, a backstop transmission device for a motor output gear is provided, comprising a main body and a support frame. The main body includes a motor engagement gear that meshes with the motor output gear to transmit power from the motor output gear. After the teeth of the motor engagement gear mesh with the teeth of the motor output gear, there is a buffer space with a preset stroke between the teeth of the motor engagement gear and the teeth of the motor output gear.

[0005] In one embodiment, the preset travel of the buffer space is greater than or equal to the reverse travel of the motor output gear.

[0006] In one embodiment, the motor engagement gear has internal teeth, the motor output gear has external teeth, the motor engagement gear is sleeved on the outer periphery of the motor output gear, and the shape of the groove between the internal teeth of the motor engagement gear is similar to the shape of the external teeth of the motor output gear.

[0007] In one embodiment, in a cross-section perpendicular to the rotation axis of the motor output gear, the external teeth of the motor output gear are L-shaped, the groove between the internal teeth of the motor engagement gear is also L-shaped, and the width of the groove of the motor engagement gear is greater than the width of the external teeth of the motor output gear.

[0008] In one embodiment, the difference between the width of the groove of the motor engagement gear and the width of the external tooth of the motor output gear is equal to the preset stroke.

[0009] In one embodiment, the depth of the groove in the motor engagement gear is greater than the height of the external tooth of the motor output gear.

[0010] In one embodiment, the main body further includes a transmission output gear for transmitting power from the motor output gear.

[0011] In one embodiment, the transmission output gear is a bevel gear.

[0012] In one embodiment, the support frame includes a support plate and legs, wherein the motor engagement gear and the transmission output gear are respectively disposed on both sides of the support plate, the legs are disposed on the side of the support plate facing the motor engagement gear, and the legs are fixed near the motor output gear.

[0013] In one embodiment, the end of the support leg is fixed near the motor output gear by welding or screws.

[0014] In one embodiment, the motor engagement gear and the transmission output gear are connected by a cylindrical neck, and the support plate is provided with a circular through hole, through which the neck passes, so that the motor engagement gear and the transmission output gear are respectively located on both sides of the support plate.

[0015] In one embodiment, one end of the neck is integrally formed with the motor engagement gear, and the other end is inserted into the transmission output gear through the through hole and fixedly connected to the transmission output gear.

[0016] In one embodiment, the motor engagement gear has a cylindrical profile.

[0017] According to one aspect of the present invention, an electronic lock for a vehicle charging dock is provided, comprising a motor output gear, a transmission gear, and a locking rod rack, wherein the transmission gear is connected to the motor output gear and the locking rod rack respectively to transmit the power of the motor to the locking rod rack, and wherein an anti-reverse transmission device according to any one of the claims is provided between the motor output gear and the transmission gear.

[0018] The advantage of this utility model is that the anti-reverse transmission device is connected between the motor output gear and the transmission gear. There is a meshing gap between the teeth of the motor output gear and the anti-reverse transmission device to buffer the slight rotation of the motor output gear. Even if the motor gear reverses at the moment of power failure, the locking rod of the electronic lock will not retract. Attached Figure Description

[0019] To make the objectives, features, and advantages of this utility model more apparent and understandable, the utility model will be further described below with reference to the accompanying drawings and specific embodiments, wherein:

[0020] Figure 1 A side view showing the connection between the anti-reverse transmission device according to the present invention and the motor output gear;

[0021] Figure 2 A cross-sectional view along the rotation center line is shown of the connection between the anti-reverse transmission device according to the present invention and the output gear of the motor.

[0022] Figure 3 A cross-sectional view of the anti-reverse transmission device according to the present invention, showing a section perpendicular to the center line of rotation, is shown; and

[0023] Figure 4 A side view showing the arrangement of the anti-reverse transmission device according to the present invention connected with other components. Detailed Implementation

[0024] While the present invention will be fully described with reference to the accompanying drawings containing preferred embodiments, it should be understood before this description that those skilled in the art can modify the invention described herein to achieve the technical effects of the present invention. Therefore, it should be understood that the above description is a broad disclosure to those skilled in the art and is not intended to limit the exemplary embodiments described herein.

[0025] Furthermore, in the following detailed description, numerous specific details are set forth for ease of explanation to provide a full understanding of the embodiments disclosed herein. However, it will be apparent that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and apparatuses are illustrated to simplify the figures.

[0026] According to the overall concept of this utility model, a backstop transmission device for a motor output gear is provided, comprising a main body and a support frame. The main body includes a motor engagement gear, which meshes with the motor output gear to transmit power from the motor output gear. After the teeth of the motor engagement gear mesh with the teeth of the motor output gear, there is a buffer space with a preset stroke between the teeth of the motor engagement gear and the motor output gear.

[0027] The advantage of this utility model is that the anti-reverse transmission device is connected between the motor output gear and the transmission gear. There is a meshing gap between the teeth of the motor output gear and the anti-reverse transmission device to buffer the slight rotation of the motor output gear. Even if the motor gear reverses at the moment of power failure, the locking rod of the electronic lock will not retract.

[0028] Figure 1 A side view showing the connection between the anti-reverse transmission device according to the present invention and the motor output gear; Figure 2 A cross-sectional view along the rotation center line is shown of the connection between the anti-reverse transmission device according to the present invention and the output gear of the motor. Figure 3 The diagram shows a cross-sectional view perpendicular to the rotation center line of the anti-reverse transmission device according to the present invention, which is connected to the output gear of the motor.

[0029] As shown in the figure, a backstop transmission device 100 for a motor output gear 200 according to the present invention includes a main body 110 and a support frame 120. The main body 110 includes a motor engagement gear 111, which meshes with the motor output gear 200 to transmit power to the motor output gear 200. After the teeth of the motor engagement gear 111 mesh with the teeth of the motor output gear 200, there is a preset travel buffer space between the teeth of the motor engagement gear 111 and the motor output gear 200. When the motor output gear 200 rotates slightly, due to the buffer space between the teeth of the motor engagement gear 111 and the motor output gear 200, the motor engagement gear 111 will not rotate with it. Simultaneously, the forward movement of the motor engagement gear 111 due to inertia is also canceled out by the rotation of the motor output gear 200.

[0030] Wherein, the preset stroke of the buffer space is greater than or equal to the reverse stroke of the motor output gear.

[0031] The motor engagement gear 111 has a cylindrical profile and internal teeth 113, while the motor output gear 200 has external teeth 203. The motor engagement gear 111 is sleeved on the outer periphery of the motor output gear 200, and the shape of the groove 114 between the internal teeth 113 of the motor engagement gear 111 is similar to the shape of the external teeth 203 of the motor output gear 200.

[0032] like Figure 3 As shown, in a cross-section perpendicular to the rotation axis of the motor output gear 200, the teeth of the motor output gear 200 are L-shaped, and the groove 114 between the internal teeth 113 of the motor engagement gear 111 is also L-shaped. The width of the groove 114 of the motor engagement gear 111 is greater than the width of the teeth of the motor output gear 200.

[0033] The difference between the width of the groove 114 of the motor engagement gear 111 and the width of the external tooth 203 of the motor output gear 200 is equal to the preset stroke.

[0034] Wherein, the depth of the groove 114 of the motor engagement gear 111 is greater than the height of the outer teeth of the motor output gear 200.

[0035] As shown in the figure, the main body 110 also includes a transmission output gear 115, which is used to transmit power from the motor output gear 200. The transmission output gear 115 is a bevel gear. However, those skilled in the art will know that the transmission output gear 115 of the main body 110 is not limited to a bevel gear and can also be other types of gears.

[0036] The support frame 120 includes a support plate 121 and legs 122. In the illustrated embodiment, the support plate 121 is rectangular, but it is not limited to this and can also be other shapes. The motor engagement gear 111 and the transmission output gear 115 are respectively disposed on both sides of the support plate 121. The legs 122 are disposed on the side of the support plate 121 facing the motor engagement gear 111 and are fixed near the motor output gear 200. The number of legs 122 is 2-4. In the illustrated embodiment, there are 2 legs 122, disposed at the two corners of the support plate 121 on the same diagonal.

[0037] The end of the support leg 122 is fixed near the motor output gear 200 by welding or screws. Specifically, one end of the support leg 122 is fixedly connected to the support plate 121 by screws, and the other end of the support leg 122 can also be fixedly connected to the motor by screws or by welding.

[0038] As shown in the figure, the motor engagement gear 111 and the transmission output gear 115 are connected by a cylindrical neck 116. A circular through hole 123 is provided on the support plate 121, through which the neck 116 passes, such that the motor engagement gear 111 and the transmission output gear 115 are respectively positioned on both sides of the support plate 121. Friction between the circular through hole 123 and the neck 116 is minimized to reduce power transmission loss in the motor.

[0039] like Figure 2 As shown, one end of the neck 116 is integrally formed with the motor engagement gear 111, and the other end is inserted into the transmission output gear 115 through the through hole 123 and is fixedly connected to the transmission output gear 115.

[0040] The main body 110 is a rigid, one-piece component.

[0041] Figure 4 A side view showing the arrangement of the anti-reverse transmission device 100 according to the present invention connected with other components.

[0042] As shown in the figure, the electronic lock 1000 for a vehicle charging dock according to this utility model includes a motor output gear 200, a transmission gear 300, and a locking rod rack 400. The transmission gear 300 is connected to the motor output gear 200 and the locking rod rack 400 respectively to transmit the power of the motor to the locking rod rack 400. An anti-reverse transmission device 100 as described above is provided between the motor output gear 200 and the transmission gear 300.

[0043] Those skilled in the art will understand that the embodiments described above are exemplary and can be improved upon. The structures described in the various embodiments can be freely combined without causing structural or principle conflicts, thereby achieving more types of anti-reverse transmission devices and electronic locks while solving the technical problems of this utility model.

[0044] After a detailed description of the preferred embodiments of the present invention, those skilled in the art will clearly understand that various changes and modifications can be made without departing from the scope and spirit of the appended claims, and the present invention is not limited to the embodiments described in the specification. It should be noted that the word "comprising" does not exclude other elements or steps, and the words "a" or "an" do not exclude a plurality. Furthermore, any reference numerals in the claims should not be construed as limiting the scope of the present invention.

Claims

1. A backstop transmission device (100) for a motor output gear (200), the backstop transmission device (100) comprising a body (110) and a support frame (120), the body (110) comprising a motor engagement gear (111) meshing with the motor output gear (200) to transmit power to the motor output gear (200), wherein, After the teeth of the motor engagement gear (111) mesh with the teeth of the motor output gear (200), there is a buffer space with a preset stroke between the teeth of the motor engagement gear (111) and the motor output gear (200).

2. The anti-reverse transmission device (100) according to claim 1, characterized in that, The preset travel of the buffer space is greater than or equal to the reverse travel of the motor output gear.

3. The anti-reverse transmission device (100) according to claim 1, characterized in that, The motor engagement gear (111) has internal teeth (113), and the motor output gear (200) has external teeth (203). The motor engagement gear (111) is sleeved on the outer periphery of the motor output gear (200). The shape of the groove (114) between the internal teeth (113) of the motor engagement gear (111) is similar to the shape of the external teeth (203) of the motor output gear (200).

4. The anti-reverse transmission device (100) according to claim 3, characterized in that, In a cross section perpendicular to the axis of rotation of the motor output gear (200), the external teeth (203) of the motor output gear (200) are L-shaped, and the groove (114) between the internal teeth (113) of the motor engagement gear (111) is also L-shaped. The width of the groove (114) of the motor engagement gear (111) is greater than the width of the external teeth (203) of the motor output gear (200).

5. The anti-reverse transmission device (100) according to claim 4, characterized in that, The difference between the width of the groove (114) of the motor engagement gear (111) and the width of the external tooth (203) of the motor output gear (200) is equal to the preset stroke.

6. The anti-reverse transmission device (100) according to claim 4, characterized in that, The depth of the groove (114) of the motor engagement gear (111) is greater than the height of the external tooth (203) of the motor output gear (200).

7. The anti-reverse transmission device (100) according to any one of claims 1-6, characterized in that, The main body (110) also includes a transmission output gear (115) for transmitting power from the motor output gear (200).

8. The anti-reverse transmission device (100) according to claim 7, characterized in that, The transmission output gear (115) is a bevel gear.

9. The anti-reverse transmission device (100) according to claim 7 or 8, characterized in that, The support frame (120) includes a support plate (121) and a support leg (122). The motor engagement gear (111) and the transmission output gear (115) are respectively disposed on both sides of the support plate (121). The support leg (122) is disposed on the side of the support plate (121) facing the motor engagement gear (111). The support leg (122) is fixed near the motor output gear (200).

10. The anti-reverse transmission device (100) according to claim 9, characterized in that, The end of the support leg (122) is fixed near the motor output gear (200) by welding or screws.

11. The anti-reverse transmission device (100) according to claim 9, characterized in that, The motor engagement gear (111) and the transmission output gear (115) are connected by a cylindrical neck (116). The support plate (121) is provided with a circular through hole (123). The neck (116) passes through the circular through hole (123), so that the motor engagement gear (111) and the transmission output gear (115) are respectively located on both sides of the support plate (121).

12. The anti-reverse transmission device (100) according to claim 11, characterized in that, One end of the neck (116) is integrally formed with the motor engagement gear (111), and the other end is inserted into the transmission output gear (115) through the through hole (123) and fixedly connected with the transmission output gear (115).

13. The anti-reverse transmission device (100) according to any one of claims 1-6, characterized in that, The motor engagement gear (111) has a cylindrical profile.

14. An electronic lock (1000) for a vehicle charging dock, comprising a motor output gear (200), a transmission gear (300), and a locking bar rack (400), wherein, The transmission gear (300) is connected to the motor output gear (200) and the locking rod rack (400) respectively to transmit the power of the motor to the locking rod rack (400), wherein a backstop transmission device (100) according to any one of claims 1-13 is provided between the motor output gear (200) and the transmission gear (300).

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