Locking device

Abstract

The utility model provides a locking device which comprises a power source used for outputting power; the gear transmission mechanism is used for transmitting power from the power source; the locking device is further provided with a first locking mechanism and a second locking mechanism, the first locking mechanism is provided with a first locking component, and the first locking component can reciprocate along the axis of the first locking component; and the second locking mechanism is provided with a second locking component, and the second locking component can reciprocate along the axis of the second locking component. According to the scheme provided by the utility model, the locking of the two charging interfaces is realized by adopting one power source, and the charging interface locking device is particularly suitable for the condition that the locking holes of the two charging interfaces are vertical to each other, and can be mounted on a charging device in a convenient manner.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle technology, and specifically relates to a locking device, particularly a locking device for a vehicle charging device. Background Technology

[0002] For electric vehicle charging devices, locking mechanisms have been developed for individual charging ports to prevent the charging gun from being forcibly pulled out or accidentally detached before charging is complete. With the development of vehicles, many electric cars now feature both fast and slow charging ports to meet different usage needs. Generally, fast charging uses DC charging, while slow charging uses AC charging. Fast charging uses high voltage and high current, with voltages reaching, for example, over 400 volts, and can charge the battery to 80% in about 30 minutes, suitable for long-distance travel or emergency charging. Slow charging uses household 220V or 380V AC power, and the charging speed is slower, typically requiring 5-8 hours to fully charge, but it is more battery-life friendly and suitable for use overnight or when the vehicle is parked for extended periods.

[0003] However, for charging devices with two charging ports, setting up a locking device for each port would increase costs, size, and structural complexity. Although the required functions can be achieved, there is still room for improvement. Utility Model Content

[0004] In order to at least partially solve the above-mentioned problems or other problems, the present invention proposes the following technical solutions.

[0005] A locking device, comprising:

[0006] A power source, used to output power;

[0007] A gear transmission mechanism for transmitting power from the power source;

[0008] The locking device also has:

[0009] The first locking mechanism has a first locking component, which is capable of reciprocating along its own axis;

[0010] The second locking mechanism has a second locking member, which is capable of reciprocating along its own axis.

[0011] According to one aspect of this utility model, the power source is an electric motor.

[0012] According to one aspect of the present invention, the gear transmission mechanism includes at least one set of gear pairs, the at least one set of gear pairs including a worm gear and a helical gear pair.

[0013] According to one aspect of the present invention, the gear transmission mechanism is connected to the first locking mechanism via a motion conversion component, thereby converting the rotational motion output by the gear transmission mechanism into the reciprocating linear motion of the first locking mechanism.

[0014] According to one aspect of the present invention, the motion conversion component includes at least one of a cam, a gear and rack mechanism, and a linkage mechanism.

[0015] According to one aspect of the present invention, the gear transmission mechanism is connected to the second locking mechanism via a connecting mechanism, thereby converting the rotational motion output by the gear transmission mechanism into the reciprocating linear motion of the second locking mechanism.

[0016] According to one aspect of the present invention, the connecting mechanism includes a first component and a third component. The first component is connected to one of the gears of the gear transmission mechanism to receive rotational motion from the gear transmission mechanism. The third component cooperates with a second locking component of a second locking mechanism. The axis of the first component is parallel to and spaced apart from the axis of the third component, such that the first component converts the rotational motion of the one gear into the rotational motion of the third component and the reciprocating linear motion of the second locking component.

[0017] According to one aspect of the present invention, the second locking member has a recessed portion, the third member is received in the recessed portion, and is movable within the recessed portion along the length direction of the recessed portion.

[0018] According to one aspect of the present invention, the connecting mechanism further includes a second component, wherein the first component and the third component are spaced apart, and the second component establishes a connected state and a separated state of the first component and the third component through its own movement. In the connected state, both the first component and the third component are connected to the second component and can rotate together; or

[0019] The connecting mechanism further includes a second component, which is fixedly disposed with the third component. The second component has an open end, and one end of the first component can be accommodated in the open end after the second component moves in a direction perpendicular to the axis of the first component, thereby forming a transmission connection with the second component and being able to rotate together.

[0020] According to one aspect of the present invention, the second component is positioned after being connected to the first component and the third component by a positioning device.

[0021] The solution proposed in this utility model uses a power source to lock the two charging ports, and is particularly suitable for situations where the locking holes of the two charging ports are perpendicular to each other, and can be conveniently installed on the charging device.

[0022] Other advantageous features and benefits of this invention will be described in detail below with reference to the accompanying drawings. Attached Figure Description

[0023] Figure 1 A front view of a charging device with two charging ports is shown.

[0024] Figure 2 A perspective view of a charging device with two charging ports is shown.

[0025] Figure 3 A perspective view of a charging device with two charging ports, equipped with a locking device according to the present invention, is shown from one angle.

[0026] Figure 4 A perspective view of the locking device according to the present invention is shown.

[0027] Figure 5 A perspective view of the locking device according to the present invention is shown from another angle.

[0028] Figure 6 A perspective view of the transmission mechanism of the locking device according to the present invention is shown, wherein some components are omitted.

[0029] Figure 7 A perspective view of the transmission mechanism of the locking device according to the present invention is shown from another angle.

[0030] Figure 8 A perspective view of the locking device according to the present invention is shown, in which some components are omitted.

[0031] Figure 9 A perspective view of the second locking mechanism of the locking device according to the present invention in the connected state is shown.

[0032] Figure 10 A perspective view of the second locking mechanism of the locking device according to the present invention in an unconnected state is shown.

[0033] Figure 11 Another embodiment of the second locking mechanism of the locking device according to the present invention is shown. Detailed Implementation

[0034] Embodiments of the present invention are described below with reference to the accompanying drawings. In the following description, numerous specific details are set forth to enable those skilled in the art to more fully understand and implement the present invention. However, it will be apparent to those skilled in the art that implementations of the present invention may not include some of these specific details. Furthermore, it should be understood that the present invention is not limited to the specific embodiments described. Rather, the present invention can be conceived to be implemented with any combination of the features and elements described below, regardless of whether they relate to different embodiments. Therefore, the following aspects, features, embodiments, and advantages are for illustrative purposes only and should not be construed as elements or limitations of the claims unless expressly set forth in the claims.

[0035] The descriptions of orientation used in the following description, such as "left," "right," "up," and "down," are for convenience only and are not intended to limit the technical solution of the utility model, unless explicitly stated otherwise. Furthermore, the terms "first" and "second," etc., used below to describe elements of this application are only used to distinguish individual elements and are not intended to limit the nature, sequence, order, or number of these elements.

[0036] Figure 1 A front view of a charging device with two charging ports is shown. The charging device 10 has two charging ports: a first charging port 11 and a second charging port 12. Here, the first charging port 11 is a slow-charging port, which may have seven connection holes, including interfaces for live wire, neutral wire, ground wire, control guidance, proximity detection, second-phase live wire, and third-phase live wire. It uses household 220V or 380V AC power and can rely on an onboard charger to convert AC power to DC power. The second charging port 12 is a fast-charging port, which may have nine connection holes, including DC positive, DC negative, ground, control guidance, proximity detection, auxiliary power positive, auxiliary power negative, and two connection confirmation holes, supporting high-power DC input. The charging device can be installed in a vehicle. When in use, a suitable charging gun is inserted into either the first charging port 11 or the second charging port 12 as needed to begin charging.

[0037] Figure 2 This shows a perspective view of a charging device with two charging ports. Figure 2As shown, to ensure the charging gun is not pulled out during charging, the charging device is provided with a first locking interface 13 and a second locking interface 14 for engaging with the charging gun to lock it in the first charging interface 11 or the second charging interface 12, respectively. Specifically, the first locking interface 13 and the second locking interface 14 can be hole-like structures formed in the housing or other parts of the charging device 10, and locking members in the locking device that mate with these two hole-like structures can be inserted into the first locking interface 13 and the second locking interface 14, respectively. Figure 2 As can be seen, the axes defined by the first locking interface 13 and the second locking interface 14 of this charging device are perpendicular to each other in space. In one specific embodiment, the axis defined by the first locking interface 13 is parallel to the axial direction of each hole in the charging interface, while the axis defined by the second locking interface 14 is perpendicular to the axial direction of each hole in the charging interface.

[0038] Figure 3 A perspective view of a charging device with two charging ports, equipped with a locking device according to the present invention, is shown from one angle. Figure 4 A perspective view of the locking device according to the present invention is shown. Figure 5 A perspective view of the locking device according to the present invention is shown from another angle. Figures 2 to 5 As can be seen, the locking device 20 of this utility model is provided with a first locking mechanism 21 and a second locking mechanism 22, thereby enabling the locking of the first locking interface 13 and the second locking interface 14.

[0039] Specifically, corresponding to the first locking interface 13 and the second locking interface 14, the locking device 20 of this invention has a first locking mechanism 21, which has a first locking member that can be inserted into the hole of the first locking interface 13. The locking device 20 also has a second locking mechanism 22, which has a second locking member 221 that can be inserted into the hole of the second locking interface 14. Both the first locking member and the second locking member 221 are cylindrical members, such as shafts or rods, each defining an axis and capable of reciprocating along their own axis to lock and unlock the charging guns in the two charging interfaces. To cooperate with the two locking interfaces, the axes of the two locking members are perpendicular to each other. Figure 5 As can be seen from the diagram, in order to protect the second locking member 221 and facilitate installation, the second locking mechanism 22 also includes a housing portion 222.

[0040] An emergency unlocking mechanism 24 is provided to enable emergency or manual unlocking in special circumstances. Normally, the locking device 20 is electrically operated, meaning it can be electrically locked or unlocked according to a control signal when powered on. However, in the event of a malfunction, the locking device 20 may fail to operate electrically, and unlocking may still be necessary. Therefore, the emergency unlocking mechanism 24 is provided so that unlocking can still be achieved manually when the locking device 20 experiences an electric malfunction.

[0041] Figure 6 A perspective view of the transmission mechanism of the locking device according to the present invention is shown, wherein some components are omitted. Figure 7 A perspective view of the transmission mechanism of the locking device according to the present invention is shown from another angle. As a specific exemplary embodiment, the transmission mechanism of the locking device 20 includes a power source, here employing an electric motor 201. The electric motor 201 drives the first locking member 21 and the second locking member 221 respectively via a gear transmission mechanism 202. Figure 7 The stator, housing, rotor, and other parts of the motor 201 are omitted; only the rotor shaft 2011 is shown. A first gear 2021 is mounted on one end of the rotor shaft 2011. The first gear 2021 meshes with a second gear 2022, which is coaxial with a first worm gear 2023 and cannot rotate relative to it. The first worm gear 2023 meshes with a third gear 2024, which is coaxial with a fourth gear 2025 and cannot rotate relative to it. The fourth gear 2025 meshes with a fifth gear 2026. The fifth gear 2026 is connected to a motion conversion component 2027, which is fixedly connected to the first locking component of the first locking mechanism 21. The motion conversion component 2027 converts the rotational motion of the third gear 2026 into reciprocating linear motion, thereby driving the first locking component of the first locking mechanism 21 to reciprocate, thus locking and unlocking the charging gun inserted into the first charging interface 11. The motion conversion component 2027 and the third gear 2026 can be connected via a cam-shaped engagement or a rack and pinion mechanism to convert rotary motion into reciprocating linear motion. Alternatively, a linkage mechanism or a combination thereof can be used. On the other hand, the fifth gear 2026 and the first component 231 of the coaxial connecting mechanism 23 cannot be rotatably connected. Thus, power is output to the second locking mechanism 22 via the connecting mechanism 23. The connecting mechanism 23 can engage with the second locking component 221, thereby converting the rotary motion of the fifth gear 2026 into the reciprocating linear motion of the second locking component 221. This drives the second locking component 221 of the second locking mechanism 22 to reciprocate, thereby locking and unlocking the charging gun inserted into the second charging interface 12.

[0042] The above is merely a description of one specific embodiment of the transmission mechanism of the locking device 20. Those skilled in the art can use other forms of transmission mechanisms to achieve the reciprocating linear motion of the locking components of the two locking mechanisms, as long as the locking components can reciprocate within the corresponding locking interfaces.

[0043] One problem that needs to be solved here is how to install the locking device 20 onto the charging device 10. Especially when combined with… Figure 2 and Figure 6 As can be seen, since the axes of the two locking interfaces are perpendicular to each other, and the axes of the corresponding two locking components are also perpendicular to each other, special design is required during installation to simultaneously install the two locking components of the locking device 20 into the two locking interfaces. For this purpose, see [reference needed]. Figures 8-10 The present invention proposes the following structural design.

[0044] Figure 8 A perspective view of the locking device according to the present invention is shown, in which some components are omitted. Figure 9 A perspective view of the second locking mechanism of the locking device according to the present invention in the connected state is shown. Figure 10 A perspective view of the second locking mechanism of the locking device according to the present invention in an unconnected state is shown. Figures 6 to 10 One design concept proposed by this utility model is that the second locking mechanism is configured to be separable from the transmission mechanism of the locking mechanism via the connecting mechanism 23, so that during installation, the second locking mechanism 22 and other parts of the locking device 20 can be installed separately and then connected together.

[0045] Specifically, according to Figures 6 to 10 The first component 231 and the third gear 2026 of the connecting mechanism 23 are coaxially arranged and connected to each other in a way that prevents relative rotation. The connecting mechanism 23 also includes a second component 232 and a third component 233, which are three separate components. Through the second component 232, the first component 231 and the third component 233 can be connected in a way that prevents relative rotation, thereby realizing the transmission of power. Figure 10 The diagram shows this split structure of the first component 231 and the third component 233, where the second component 232 is not shown. Figure 9The diagram shows a view in which the second component 232 connects the first component 231 and the third component 233 in a way that prevents relative rotation. As an example structure, the first component 231 and the third component 233 have polygonal outer contours with the same number of sides, while the second component 232 is a cylindrical structure with a polygonal inner contour and the same number of sides as the outer contours of the first component 231 and the third component 233. Thus, when the first component 231 and the third component 233 are close to each other, they can be connected non-rotatably by simultaneously fitting the second component 232 onto the outer contours of both components. Of course, this shape fit can be achieved not only with polygonal contours but also with, for example, semi-circular contours, as long as the first component 231 and the third component 233 can be connected non-rotatably.

[0046] To convert the rotational motion of the third gear 2026 into the reciprocating linear motion of the second locking member 221 of the second locking mechanism 22, see [reference needed]. Figure 8 and Figure 9 The third component 233 of the connecting mechanism 23 includes a first part 2331, a second part 2332, and a third part 2333. A portion of the first part 2331 has the polygonal outer contour described above, for engaging with the inner contour of the second component 232. The first part 2331 is also connected to the second part 2332, which in turn is connected to the third part 2333. The first part 2331 defines an axis, and the third part 2333 also defines an axis. The axes of the first part 2331 and the third part 2333 are parallel but spaced apart by a distance. Thus, when the first part 2331 rotates under the influence of the second component 232, the third part 2333 can also rotate accordingly. Simultaneously, the first part 2331 rotates about its own axis, and the third part 2333 also rotates about the axis of the first part 2331.

[0047] See Figure 9 The second locking member 221 of the second locking mechanism 22 includes a cylindrical portion 2211 and a recessed portion 2212. A third portion 2333 is housed in the recessed portion 2212. The width of the recessed portion 2212 is set to be the same as the outer diameter of the third portion 2333, while the length of the recessed portion 2212 is greater than the outer diameter of the third portion 2333. Thus, when the third portion 2333 rotates, it can move along the length of the recessed portion 2212 and drive the recessed portion 2212 to move in the width direction of the recessed portion 2212. In other words, the third portion 2333 can drive the second locking member 221 to perform reciprocating linear motion when it rotates.

[0048] When installing the locking device 20 onto the charging device 10, the following installation method is adopted: the second component 232 is moved axially to one side of the first component 231 or the third component 233, that is, the first component 231 and the third component 233 cannot rotate together due to the connection of the second component 232. Then, the second locking mechanism 22 is installed into the second locking interface 14, and the other parts of the locking mechanism 20 are installed in place. In this state, the first locking mechanism 21 is also installed into the first locking interface 13. Then, the second component 232 is moved axially to a state where it is simultaneously connected to the first component 231 and the third component 233, so that the first component 231 and the third component 233 rotate together due to the connection of the second component 232. In order to fix the position of the second component 232 in its axial direction and avoid the undesirable movement of the second component 232 causing the undesirable movement and disengagement between the first component 231 and the third component 233, the fit between the elastic pin or the elastic ball and the groove can be used to fix the second component 232. Alternatively, locking screws or other methods can be used to fix the second component 232.

[0049] Figure 11 Another embodiment of the second locking mechanism of the locking device according to the present invention is shown. See also Figure 11 ,and Figure 9 and Figure 10 The difference in the illustrated embodiment is that, in the connecting mechanism 23, the second component 232 and the third component 233 are formed as a whole, and the second component 232 has an open end for receiving the end of the first component 231. For example, the end of the first component 231 still adopts a quadrangular prism structure, and the open end has four sidewalls, one of which is used for fixed connection with the third component 233, and the remaining three sidewalls can contact the three faces of the quadrangular prism in three directions, thereby forming a rotational connection. Specifically, during installation, the main body of the locking mechanism, including the transmission mechanism and the first locking mechanism, is installed in place, and then the second locking mechanism is installed. Since the second component 232 of the second locking mechanism has an open end, the prism portion of the first component 231 can be accommodated in the open end, and when the first component 231 rotates, it can transmit rotational motion through the cooperation of its own face with the sidewall of the open end.

[0050] As can be seen from the above, the solution proposed by this utility model uses a power source to lock the two charging ports, and is particularly suitable for the case where the locking holes of the two charging ports are perpendicular to each other, and can be conveniently installed on the charging device.

[0051] The foregoing description is merely an exemplary embodiment relating to the spirit and principles of this utility model. Those skilled in the art will understand that various changes can be made to the described examples without departing from the spirit and principles, and such changes and their various equivalents are contemplated by the inventors and fall within the scope defined by the claims of this utility model.

Claims

1. A locking device, comprising: A power source, used to output power; A gear transmission mechanism (202) is used to transmit power from the power source; The locking device (20) is characterized in that it further comprises: The first locking mechanism (21) has a first locking member, which is capable of reciprocating along its own axis; The second locking mechanism (22) has a second locking member (221) which is capable of reciprocating along its own axis.

2. The locking device according to claim 1, characterized in that, The power source is an electric motor (201).

3. The locking device according to claim 2, characterized in that, The gear transmission mechanism (202) includes at least one set of gear pairs, which includes a worm gear and a helical gear pair.

4. The locking device according to any one of claims 1-3, characterized in that, The gear transmission mechanism (202) is connected to the first locking mechanism (21) through a motion conversion component (2027), thereby converting the rotational motion output by the gear transmission mechanism (202) into the reciprocating linear motion of the first locking mechanism (21).

5. The locking device according to claim 4, characterized in that, The motion conversion component (2027) includes at least one of a cam, a gear rack, and a linkage mechanism.

6. The locking device according to any one of claims 1-3, characterized in that, The gear transmission mechanism (202) is connected to the second locking mechanism (22) through the connecting mechanism (23), thereby converting the rotational motion output by the gear transmission mechanism (202) into the reciprocating linear motion of the second locking mechanism (22).

7. The locking device according to claim 6, characterized in that, The connecting mechanism (23) includes a first component (231) and a third component (233). The first component is connected to one of the gears of the gear transmission mechanism to receive rotational motion from the gear transmission mechanism. The third component cooperates with the second locking component (221) of the second locking mechanism (22). The axis of the first component is parallel to and spaced apart from the axis of the third component, such that the first component converts the rotational motion of the one gear into the rotational motion of the third component and the reciprocating linear motion of the second locking component (221).

8. The locking device according to claim 7, characterized in that, The second locking member (221) has a recessed portion (2212), and the third member (233) is housed in the recessed portion (2212) and is movable within the recessed portion (2212) along the length direction of the recessed portion (2212).

9. The locking device according to claim 8, characterized in that, The connecting mechanism (23) further includes a second component (232). The first component (231) and the third component (233) are spaced apart. The second component establishes a connected state and a separated state between the first component and the third component through its own movement. In the connected state, both the first component and the third component are connected to the second component and can rotate together; or The connecting mechanism (23) further includes a second component (232), which is fixedly disposed with the third component (233). The second component has an open end, and one end of the first component (231) can be accommodated in the open end after the second component moves in a direction perpendicular to the axis of the first component, thereby forming a transmission connection with the second component and being able to rotate together.

10. The locking device according to claim 9, characterized in that, The second component is positioned after being connected to the first and third components via a positioning device.

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