Adapter capable of preventing hot plugging

Abstract

The utility model discloses an anti-hot plugging adapter comprising a first housing and a second housing, the second housing is internally provided with a male end signal terminal and a male end power terminal, the first housing is internally provided with a female end signal terminal and a female end power terminal, and the male end power terminal and the female end power terminal are in conductive connection through a switching copper bar. According to the adapter of the utility model, the micro switch is connected in series in the signal terminal switching assembly composed of the female end signal terminal and the male end signal terminal, and the second shell is provided with the signal terminal switching assembly which is used for driving the micro switch to be switched from a closed state to an open state and driving the micro switch to be switched from a closed state to an open state. The power-off button is used for switching the female-end signal terminal and the male-end signal terminal into a closed state or switching the female-end signal terminal and the male-end signal terminal into the closed state from the open state, so that when the adapter is plugged, on-off of a loop of the signal terminal switching assembly where the female-end signal terminal and the male-end signal terminal are located can be manually controlled through the power-off button, power-off plugging of the adapter is achieved, and safety of a vehicle and a person can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of adapters, in particular to an adapter capable of preventing live plugging and unplugging. Background Art

[0002] At a time when decarbonization has become a global consensus, the overseas new energy vehicle market is booming, and Chinese automakers have also accelerated their layout in overseas markets. Against this background, markets such as Europe, North America, Japan and South Korea have mandatory requirements for car charging interfaces, but there are no mandatory regulations for charging interfaces in Africa, the Middle East, South Asia, Southeast Asia and other places. The use of charging seat interfaces is relatively chaotic, and the charging infrastructure is mostly European / American standard interfaces. This factor has created a favorable environment for the national standard charging interface to go abroad. While Chinese automakers are going abroad, considering cost factors, most of the interfaces installed in vehicles are national standard interfaces. This has led to the emergence of charging interface adapters. Traditional charging interface adapters do not have interlocking devices, resulting in poor safety and reliability, such as easily causing live plug-in gun functions or live pull-out guns. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide an adapter that can prevent live plugging and unplugging, so as to solve the technical problems mentioned in the background technology.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an adapter for preventing live plugging and unplugging, comprising a first shell and a second shell that are adapted to be connected, a male signal terminal and a male power terminal are arranged in the second shell, a female signal terminal and a female power terminal are arranged in the first shell, the male power terminal and the female power terminal are conductively connected through a transfer copper bus, the male signal terminal and the female signal terminal are conductively connected through a printed circuit board, a micro switch is connected in series between the male signal terminal and the female signal terminal, and a power-off button for driving the micro switch to switch from a closed state to an open state, or from an open state to a closed state, is arranged on the first shell or the second shell.

[0005] In some embodiments, a window is provided on the first housing or the second housing to expose the control end of the micro switch;

[0006] One end of the power-off button is hinged to the first housing or the second housing through a pin shaft, and the other end can swing relative to the pin shaft and press the control end of the micro switch during the swinging process to control the working state of the micro switch.

[0007] In some embodiments, a press protection film is sealed at the window opening.

[0008] In some embodiments, a return spring is arranged between the power-off button and the outer wall of the first shell or the second shell, and a protrusion that cooperates with the control end of the micro switch is arranged on the power-off button. After pressing the power-off button, the return spring is compressed to make the protrusion abut against the control end of the micro switch.

[0009] In some embodiments, a micro thermal cut-off module is also connected in series between the male signal terminal and the female signal terminal. The micro thermal cut-off module is integrated into the printed circuit board. A thermal pad is clamped between the two female power terminals or between the two male power terminals. One end of the thermal pad extends and adheres to the micro thermal cut-off module. The micro thermal cut-off module obtains the temperature of the female power terminal or the male power terminal in real time through the thermal pad.

[0010] In some embodiments, the thermal pad and the printed circuit board are independent of each other, or are connected by bonding or bolts.

[0011] In some embodiments, the printed circuit board includes a first printed circuit board and a second printed circuit board arranged vertically, the micro switch is integrated on the second printed circuit board, the micro thermal cut-off module is integrated on the first printed circuit board, and the first printed circuit board and the second printed circuit board are conductively connected via connecting terminals.

[0012] In some embodiments, it also includes a grounding terminal assembly that is integrally formed by a female grounding terminal and a male grounding terminal, the female grounding terminal and the male grounding terminal are respectively arranged in the first shell and the second shell, and a through hole is opened on the printed circuit board for the grounding terminal assembly to pass through.

[0013] In some embodiments, a sealing ring is provided at the connection between the first shell and the second shell.

[0014] In some embodiments, the power-off button is disposed on the second housing, and the second housing also has a locking pendant disposed opposite to the power-off button.

[0015] In some embodiments, the interior of the second shell has a connector cavity adapted to the connector, a lock hole connected to the connector cavity is provided through the side wall of the second shell, a linkage lock element cantilevered in the lock hole is provided at the end of the power-off button away from the micro switch, and a groove matching the shape of the linkage lock element is provided on the connector, and after the connector is inserted into the connector cavity, the linkage lock element is inserted into the groove.

[0016] Compared with the prior art, the beneficial effect of the utility model is that the adapter of the utility model is connected in series with a micro switch in the signal terminal adapter assembly composed of a female signal terminal and a male signal terminal, and a power-off button for driving the micro switch to switch from a closed state to an open state, or from an open state to a closed state, is provided on the first shell or the second shell. Therefore, when plugging and unplugging the adapter, the power-off button can be used to manually control the on and off of the signal terminal adapter assembly circuit where the female signal terminal and the male signal terminal are located, thereby realizing power-off plugging and unplugging of the adapter, which can ensure the safety of the vehicle and people. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0018] Figure 1 A schematic diagram of the structure of an adapter that can prevent live plugging and unplugging provided by the utility model;

[0019] Figure 2 for Figure 1 A cross-sectional view of

[0020] Figure 3 for Figure 1 A schematic diagram of the internal structure of the adapter shown;

[0021] Figure 4 for Figure 1 A schematic diagram of the structure of the printed circuit board in the adapter shown;

[0022] Figure 5 for Figure 1 A schematic diagram showing the positional relationship among the second printed circuit board, the connecting terminal and the micro switch in the adapter shown; Figure 6 for Figure 1 Control schematic diagram of the adapter shown;

[0023] Figure 7 for Figure 1 Schematic diagram of the matching between the adapter and the connector.

[0024] The following are marked in the figure:

[0025] 1. Connector; 11. Groove;

[0026] 10. First housing; 101. Female signal terminal; 102. Female power terminal; 103. Female ground terminal;

[0027] 20, second housing; 201, male signal terminal; 202, male power terminal; 203, window; 204, press protection film; 205, male ground terminal; 206, lock hole; 207, plug cavity;

[0028] 30. Transfer copper busbar;

[0029] 40, printed circuit board; 401, first printed circuit board; 402, second printed circuit board; 403, connecting terminal; 404, through hole;

[0030] 50. micro switch; 501. control end of the micro switch;

[0031] 60, power off button; 601, return spring; 602, convex point; 603, linkage lock;

[0032] 70. Micro thermal cut-off module; 701. Thermal pad;

[0033] 80. Sealing ring;

[0034] 90. Locking pendant. DETAILED DESCRIPTION

[0035] 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 otherwise specifically stated, 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.

[0036] 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.

[0037] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0038] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0039] An adapter that prevents live plugging and unplugging, such as Figure 1-Figure 3As shown, it includes a first shell 10 and a second shell 20 that are adapted to be connected, and a sealing ring 80 is provided at the connection between the first shell 10 and the second shell 20. The connector 1 connected to the second shell 20 is a charging gun, and the connector 1 connected to the first shell 10 is a socket of a vehicle. A male signal terminal 201 and a male power terminal 202 are arranged in the second housing 20, and a female signal terminal 101 and a female power terminal 102 are arranged in the first housing 10. The male power terminal 202 and the female power terminal 102 are conductively connected via a transfer copper bus 30, and the male signal terminal 201 and the female signal terminal 101 are conductively connected via a printed circuit board 40. A micro switch 50 is connected in series between the male signal terminal 201 and the female signal terminal 101. A power-off button 60 for driving the micro switch 50 to switch from a closed state to an open state, or from an open state to a closed state, is arranged on the first housing 10 or the second housing 20. In this embodiment, the micro switch 50 is a normally closed switch, which switches from a closed state to an open state after being pressed, and switches from an open state to a closed state immediately after the pressing is released. When the adapter is plugged into the vehicle's socket, or the charging gun is plugged into the adapter, the on / off of the signal terminal adapter component circuit where the female signal terminal 101 and the male signal terminal 201 are located can be manually controlled by the power-off button 60, that is, the signal terminal adapter component circuit is disconnected by pressing the power-off button 60, and then the charging gun or vehicle socket connected to the adapter obtains the on / off signal of the circuit where the signal terminal adapter component is located, and then cuts off the circuit where the power terminal adapter component is located to achieve power off; after the plugging is completed, release the power-off button 60, the signal terminal adapter component circuit is closed again, and then the charging gun or vehicle socket connected to the adapter obtains the on / off signal of the circuit where the signal terminal adapter component is located, and then re-connects the circuit where the power terminal adapter component is located to achieve power transmission, thereby realizing power off and plugging in the adapter, and ensuring the safety of the vehicle and people.

[0040] In one embodiment, if Figure 1 and Figure 2As shown, a window 203 is provided on the first shell 10 or the second shell 20 to expose the control end 501 of the micro switch. In this embodiment, taking the power-off button 60 and the window 203 both being arranged on the second shell 20 as an example, the technical solution of the utility model is explained: a pressing protection film 204 is sealed at the window 203, and the pressing protection film 204 is a plastic film with a certain deformation ability. One end of the power-off button 60 is hinged to the second shell 20 through a pin shaft, and the other end can swing relative to the pin shaft and press the control end 501 of the micro switch during the swinging process to control the working state of the micro switch 50. When the power-off button 60 presses the control end 501 of the micro switch, the pressing protection film 204 will deform with the action of the power-off button 60 and restore its original shape after the external force disappears, thereby realizing effective sealing of the second shell 20. Furthermore, a return spring 601 is arranged between the power-off button 60 and the outer wall of the second shell 20, and a protrusion 602 matching the control end 501 of the micro switch is arranged on the power-off button 60. After pressing the power-off button 60, the return spring 601 is compressed to make the protrusion 602 abut against the control end 501 of the micro switch.

[0041] In one embodiment, if Figure 2-Figure 6 As shown, a micro thermal cut-off module 70 is also connected in series between the male signal terminal 201 and the female signal terminal 101. The micro thermal cut-off module 70 is integrated on the printed circuit board 40. A thermal pad 701 is sandwiched between the two female power terminals 102 or the two male power terminals 202. One end of the thermal pad 701 extends and fits to the micro thermal cut-off module 70. The micro thermal cut-off module 70 obtains the temperature of the female power terminal 102 or the male power terminal 202 in real time through the thermal pad 701. The thermal pad 701 and the printed circuit board 40 are independent of each other, or are connected by bonding or bolts.

[0042] Furthermore, if Figure 3 As shown, the printed circuit board 40 includes a first printed circuit board 401 and a second printed circuit board 402 which are vertically arranged, a micro switch 50 is integrated on the second printed circuit board 402, a micro thermal cut-off module 70 is integrated on the first printed circuit board 401, the first printed circuit board 401 and the second printed circuit board 402 are conductively connected via a connecting terminal 403, and the first printed circuit board 401 and the second printed circuit board 402 are vertically arranged, which can optimize the space inside the adapter and has a high degree of integration.

[0043] like Figure 2 and Figure 3As shown, the adapter of the utility model also includes a grounding terminal assembly formed by a female grounding terminal 103 and a male grounding terminal 205, the female grounding terminal 103 and the male grounding terminal 205 are respectively arranged in the first shell 10 and the second shell 20, and a through hole 404 for the grounding terminal assembly to pass through is opened on the printed circuit board 40. The grounding terminal assembly is arranged as an integrated structure, which can reduce the manufacturing cost of the grounding terminal assembly on the one hand, and simplify the assembly of the grounding terminal assembly on the other hand, and reduce labor costs.

[0044] like Figure 2 As shown, the second housing 20 also has a locking hanger 90 arranged opposite to the power-off button 60. The locking hanger 90 is used to be connected to the socket of the vehicle to fix the adapter.

[0045] In one embodiment, if Figure 7 As shown, the interior of the second shell 20 has a connector cavity 207 adapted to the connector 1, and a lock hole 206 connected to the connector cavity is provided on the side wall of the second shell 20. An interlocking lock member 603 cantilevered in the lock hole 206 is provided at the end of the power-off button 60 away from the micro switch 50, and a groove 11 matching the shape of the interlocking lock member 603 is provided on the connector 1.

[0046] When plugging in the charging gun, you first need to press the power-off button 60 to make the interlocking lock 603 tilt upward to avoid the insertion of the charging gun. After the charging gun is inserted, release the power-off button 60. After the power-off button 60 is reset, the interlocking lock 603 is plugged into the groove 11. Therefore, the connector 1 connected to the second shell 20, i.e. the charging gun, can be plugged in and out only when the power-off button 60 is pressed, thereby preventing the operator from operating it incorrectly.

[0047] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. An adapter for preventing live plugging and unplugging, comprising a first shell and a second shell that are adapted to be connected, wherein a male signal terminal and a male power terminal are arranged in the second shell, and a female signal terminal and a female power terminal are arranged in the first shell, the male power terminal and the female power terminal are conductively connected through a transfer copper bus, and the male signal terminal and the female signal terminal are conductively connected through a printed circuit board, characterized in that: A micro switch is connected in series between the male signal terminal and the female signal terminal, and a power-off button for driving the micro switch to switch from a closed state to an open state, or from an open state to a closed state, is provided on the first housing or the second housing.

2. The adapter for preventing hot plugging according to claim 1, characterized in that: The first housing or the second housing is provided with a window for exposing the control end of the micro switch; One end of the power-off button is hinged to the first housing or the second housing through a pin shaft, and the other end can swing relative to the pin shaft and press the control end of the micro switch during the swinging process to control the working state of the micro switch.

3. The adapter for preventing hot plugging according to claim 2, characterized in that: The window opening is sealed with a pressing protective film.

4. The adapter for preventing hot plugging according to claim 2, characterized in that: A return spring is arranged between the power-off button and the outer wall of the first shell or the second shell, and a convex point matching the control end of the micro switch is arranged on the power-off button. After pressing the power-off button, the return spring is compressed to make the convex point abut against the control end of the micro switch.

5. The adapter for preventing hot plugging according to claim 1, characterized in that: A micro thermal cut-off module is also connected in series between the male signal terminal and the female signal terminal. The micro thermal cut-off module is integrated into the printed circuit board. A thermal pad is clamped between the two female power terminals or between the two male power terminals. One end of the thermal pad extends and adheres to the micro thermal cut-off module. The micro thermal cut-off module obtains the temperature of the female power terminal or the male power terminal in real time through the thermal pad.

6. The adapter for preventing hot plugging according to claim 5, characterized in that: The thermal pad and the printed circuit board are independent of each other, or are connected by bonding or bolts.

7. The adapter for preventing hot plugging according to claim 5, characterized in that: The printed circuit board comprises a first printed circuit board and a second printed circuit board which are arranged vertically, the micro switch is integrated on the second printed circuit board, the micro thermal cut-off module is integrated on the first printed circuit board, and the first printed circuit board and the second printed circuit board are conductively connected via connecting terminals.

8. The adapter for preventing hot plugging according to claim 1, characterized in that: It also includes a grounding terminal assembly formed by a female grounding terminal and a male grounding terminal, the female grounding terminal and the male grounding terminal are respectively arranged in the first shell and the second shell, and a through hole for the grounding terminal assembly to pass through is opened on the printed circuit board.

9. The adapter for preventing hot plugging according to claim 1, characterized in that: A sealing ring is provided at the connection between the first shell and the second shell.

10. The adapter for preventing hot plugging according to claim 1, characterized in that: The power-off button is arranged on the second shell, and the second shell also has a locking hanging piece arranged opposite to the power-off button.

11. The adapter for preventing hot plugging according to claim 1, characterized in that: The interior of the second shell has a connector cavity adapted to the connector, and a lock hole connected to the connector cavity is provided through the side wall of the second shell. A linkage lock piece cantilevered in the lock hole is provided at the end of the power-off button away from the micro switch, and a groove matching the shape of the linkage lock piece is provided on the connector. After the connector is inserted into the connector cavity, the linkage lock piece is inserted into the groove.

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