阅读说明：本技术 插头组件及充电枪 (Plug assembly and charging gun ) 是由 郭斌 刘君 李晨光 夏全飞 薛玉钢 于 2018-12-24 设计创作，主要内容包括：本发明涉及一种插头组件及充电枪,插头组件包括插头和与插头适配的转换器,所述插头配置有用于控制功率转换的控制电路,控制电路具有断口,所述断口设置在插头的插合面侧,转换器的与插头的插合面配合的一侧上设有短接导体,所述短接导体用于在转换器安装至插头时,将控制电路的断口连通。断口只能通过短接导体连通,控制电路的断口不会因为异物连通,避免了控制电路的断口误连通造成的安全事故；另外,断口不存在反复使用的失效风险,可对充电电流进行有效控制。解决了现有技术中插头组件的充电模式判断失误造成充电设备损坏或降低充电效率的问题。(The invention relates to a plug assembly and a charging gun, wherein the plug assembly comprises a plug and a converter matched with the plug, the plug is provided with a control circuit for controlling power conversion, the control circuit is provided with a fracture, the fracture is arranged on the insertion surface side of the plug, one side of the converter matched with the insertion surface of the plug is provided with a short-circuit conductor, and the short-circuit conductor is used for communicating the fracture of the control circuit when the converter is installed on the plug. The fractures can be communicated only through the short-circuit conductor, and the fractures of the control circuit cannot be communicated due to foreign matters, so that safety accidents caused by the fact that the fractures of the control circuit are communicated by mistake are avoided; in addition, the fracture does not have the inefficacy risk of using repeatedly, can carry out effective control to charging current. The problem of the charging device damage or reduce charging efficiency caused by charging mode judgment error of the plug assembly in the prior art is solved.)

1. The plug assembly comprises a plug and a converter matched with the plug, the plug is provided with a control circuit used for controlling power conversion, and the plug assembly is characterized in that the control circuit is provided with a fracture, the fracture is arranged on the insertion face side of the plug, a short-circuit conductor is arranged on one side, matched with the insertion face of the plug, of the converter, and the fracture of the control circuit is communicated when the converter is installed to the plug.

2. The plug assembly of claim 1, wherein the break forms a break mating structure, and the shorting conductor has a conductor mating portion corresponding to the break mating structure.

3. The plug assembly of claim 2, wherein said break plug structures are disposed on opposite sides of said break.

4. A plug assembly according to claim 2 or claim 3, in which the conductor spigot is of a pinhead configuration.

5. A plug assembly according to claim 2 or claim 3, wherein the mating face side of the plug is provided with a recess, the interrupted plug-in structure being located in the recess and having an external interrupted protective insulator.

6. The plug assembly of claim 5, wherein the side of the converter that mates with the mating surface of the plug is provided with a short protection insulator, the short protection insulator is a sleeve, and the end of the sleeve forms a channel for the break protection insulator to insert into.

7. A plug assembly as claimed in claim 4, in which the shorting conductor is a U-shaped pin having two parallel arms forming the conductor engagement portion.

8. A plug assembly according to claim 1, 2 or 3, wherein the power contacts of the plug are tab pins.

9. Charging gun comprising a plug assembly, characterized in that the plug assembly is a plug assembly according to any one of claims 1 to 8.

Technical Field

The invention relates to a plug assembly and a charging gun.

Background

The conventional charging gun is configured to have a plug assembly by connecting a converter to a plug, so that the charging gun outputs different charging currents, i.e., the charging gun having no converter connected to the plug outputs one charging current, and the charging gun outputs another charging current when the converter is connected to the plug. If the charging current of the charging gun is defined as the original current when the converter is not connected to the plug, the charging gun is in the original current charging mode; when the plug is connected with the converter, the charging current of the charging gun is the conversion current, and the charging gun is in the conversion current charging mode at the moment. In order to facilitate the charging gun to determine which charging mode the charging gun should be in, different resistors are often added into the converter and the plug, and the charging gun determines which charging mode the charging gun should be in and switches to the corresponding charging mode by determining the resistor in the current plug. Due to the characteristics of the resistor, the resistor connected to the plug or the converter is easily damaged and failed, so that the method for judging the charging mode of the charging gun has a large risk of judgment errors.

The utility model discloses a chinese utility model patent that the bulletin number of authorizing is CN206441970U, and the date of authorizing is 2017.08.25 discloses a novel converter, including the converter body and with converter body matched with plug, the one end of converter body is equipped with socket and summit, summit and socket are arranged in on the same face, and are equipped with the protruding limit of protection around this face, the plug is equipped with three reed of inserting, temperature sensor and arranging the plug in, and the reed includes movable contact spring and stationary contact spring, and the movable contact spring is equipped with to being close to the bellied bump of stationary contact spring direction, the plug middle part is equipped with the hole, and the hole department is arranged in to the movable contact spring. The novel converter touches the reeds in the plug through the top point on the converter, so that the two reeds are communicated, and a signal source is fed back to the control mechanism, so that the function conversion of the current is realized. When the plug assembly is formed by the converter and the plug together, the two reeds are disconnected when the plug is pulled out, the control mechanism returns to the original current, the function is changed, the operation is convenient, and the practicability is high. When the converter is used, the movable spring plate is pressed down and rebounded when the vertex touches the movable spring plate and leaves the movable spring plate. The control mechanism is a controller for controlling the current.

The novel converter controls the plug power conversion through the circuit, and is safer compared with a mode of controlling the plug power through the resistor, but because the controller is triggered by the direct contact of the two reeds, and the two reeds are overlapped in the projection in the plug inserting direction under the normal state, in the using process, the movable reed is easily contacted with the static reed due to the fact that foreign matters exist on the inserting face of the plug, and therefore safety accidents are caused. In addition, the movable spring plate is used as an action part of the trigger controller, and is difficult to avoid failure after repeated use and rebound, so that when the converter is not connected to the plug, the two spring plates are also in a communicated state, and the charging mode is judged wrongly. At this time, if the current of the original current charging mode is larger than the charging current of the converter charging mode, the charging equipment may be damaged by the excessive current; if the current of the original current charging mode is smaller than the charging current of the converter charging mode, the charging efficiency of the charging equipment can be greatly reduced by the excessively small current.

Disclosure of Invention

The invention aims to provide a charging plug assembly, which aims to solve the problem that charging equipment is damaged or the charging efficiency is reduced due to the fact that the charging mode of the plug assembly is judged incorrectly in the prior art; it is also an object of the present invention to provide a charging gun that solves the above problems.

The plug assembly adopts the following technical scheme:

the plug assembly comprises a plug and a converter matched with the plug, the plug is provided with a control circuit used for controlling power conversion, the control circuit is provided with a fracture, the fracture is arranged on the insertion face side of the plug, a short-circuit conductor is arranged on one side of the insertion face matched with the plug of the converter, and the short-circuit conductor is used for communicating the fracture of the control circuit when the converter is installed on the plug.

The invention has the beneficial effects that: through setting up the fracture on control circuit, set up the short circuit conductor in one side of converter, when installing the converter on the plug, the short circuit conductor can be with control circuit's fracture intercommunication, and the controller is according to the signal control charging current size of control circuit last fracture intercommunication. The fractures can be communicated only through the short-circuit conductor, and the fractures of the control circuit cannot be communicated due to foreign matters, so that safety accidents caused by the fact that the fractures of the control circuit are communicated by mistake are avoided; in addition, the fracture does not have the inefficacy risk of using repeatedly, can carry out effective control to charging current. The problem of the charging device damage or reduce charging efficiency caused by charging mode judgment error of the plug assembly in the prior art is solved.

In order to ensure that the short-circuit conductor is in good contact with the fracture when the converter is installed on the plug, the fracture is formed into a fracture inserting structure in the scheme, and the short-circuit conductor is provided with a conductor inserting part corresponding to the fracture inserting structure. When installing the converter on the plug, the conductor grafting portion is inserted with fracture grafting structure and is closed, and the short circuit conductor has great area of contact with the fracture, and the contact is stable, guarantees the good contact of short circuit conductor and fracture.

In order to better guarantee the good contact of short circuit conductor and fracture, this scheme the both sides punishment of fracture do not is equipped with fracture grafting structure, like this, fracture grafting structure and conductor grafting portion one-to-one only need make conductor grafting portion and the fracture grafting structure that corresponds insert and close, can guarantee the good contact of short circuit conductor and fracture.

In order to facilitate the design and processing of the short-circuit conductor, the conductor insertion part is of a needle head structure in the scheme.

In order to protect the fracture, a groove is formed in the insertion face side of the plug in the scheme, and the fracture insertion structure is located in the groove and is externally provided with a fracture protection insulator.

In order to protect the short-circuit conductor, in the scheme, one side of the converter, which is matched with the insertion surface of the plug, is provided with a short-circuit protection insulator, the short-circuit protection insulator is a sleeve body, and the end part of the sleeve body forms a channel for inserting the fracture protection insulator.

In order to facilitate the design and processing of the short-circuit conductor, the short-circuit conductor is a U-shaped needle, and two parallel support arms on the U-shaped needle form the conductor insertion part.

In order to make the plug have universality, the power contact piece of the plug is a plug-in type pin. Because commercial power socket commonly used on the market is adapted with the plug-in sheet type plug, the plug contact pin is set as the plug-in sheet type contact pin, so that the plug and the socket have better universality.

The charging gun adopts the following technical scheme:

the rifle that charges includes plug assembly, plug assembly include the plug and with the converter of plug adaptation, the plug disposes the control circuit who is used for control power conversion, and control circuit has the fracture, the fracture setting closes the face side at the inserting of plug, the converter with the inserting of plug close be equipped with the short circuit conductor on face complex one side, the short circuit conductor is used for when the converter is installed to the plug, with control circuit's fracture intercommunication.

The invention has the beneficial effects that: through setting up the fracture on control circuit, set up the short circuit conductor in one side of converter, when the installation converter on the plug, the short circuit conductor communicates control circuit's fracture, and the signal control charging current size of fracture intercommunication on the controller is according to control circuit. The fractures can be communicated only through the short-circuit conductor, and the fractures of the control circuit cannot be communicated due to foreign matters, so that safety accidents caused by the fact that the fractures of the control circuit are communicated by mistake are avoided; in addition, the fracture does not have the inefficacy risk of using repeatedly, can carry out effective control to charging current. The problem of the charging device damage or reduce charging efficiency caused by charging mode judgment error of the plug assembly in the prior art is solved.

In order to ensure that the short-circuit conductor is in good contact with the fracture when the converter is installed on the plug, the fracture is formed into a fracture inserting structure in the scheme, and the short-circuit conductor is provided with a conductor inserting part corresponding to the fracture inserting structure. When installing the converter on the plug, the conductor grafting portion is inserted with fracture grafting structure and is closed, and the short circuit conductor has great area of contact with the fracture, and the contact is stable, guarantees the good contact of short circuit conductor and fracture.

In order to better guarantee the good contact of short circuit conductor and fracture, this scheme the both sides punishment of fracture do not is equipped with fracture grafting structure, like this, fracture grafting structure and conductor grafting portion one-to-one only need make conductor grafting portion and the fracture grafting structure that corresponds insert and close, can guarantee the good contact of short circuit conductor and fracture.

In order to facilitate the design and processing of the short-circuit conductor, the conductor insertion part is of a needle head structure in the scheme.

In order to protect the fracture, a groove is formed in the insertion face side of the plug in the scheme, and the fracture insertion structure is located in the groove and is externally provided with a fracture protection insulator.

In order to protect the short-circuit conductor, in the scheme, one side of the converter, which is matched with the insertion surface of the plug, is provided with a short-circuit protection insulator, the short-circuit protection insulator is a sleeve body, and the end part of the sleeve body forms a channel for inserting the fracture protection insulator.

In order to facilitate the design and processing of the short-circuit conductor, the short-circuit conductor is a U-shaped needle, and two parallel support arms on the U-shaped needle form the conductor insertion part.

In order to make the plug have universality, the power contact piece of the plug is a plug-in type pin. Because commercial power socket commonly used on the market is adapted with the plug-in sheet type plug, the plug contact pin is set as the plug-in sheet type contact pin, so that the plug and the socket have better universality.

Drawings

FIG. 1 is a schematic view of an embodiment of a plug assembly of the present invention when the plug is not fully inserted into the converter;

FIG. 2 is a schematic view of an embodiment of a plug assembly of the present invention with the plug fully inserted into the converter;

FIG. 3 is a control circuit diagram of an embodiment of the plug assembly of the present invention;

FIG. 4 is a perspective view of the plug of FIG. 1;

FIG. 5 is a partial cross-sectional view of FIG. 4;

FIG. 6 is a schematic diagram of the converter of FIG. 1;

FIG. 7 is a left side view of FIG. 6;

FIG. 8 is a cross-sectional view of FIG. 6;

in the figure: 1-plug, 2-converter, 3-fracture jack, 4-U-shaped pin, 5-converter protective insulator, 6-plug pin, 7-converter jack, 8-fracture protective insulator, 9-short-circuit protective insulator, 10-converter pin and 11-groove.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings.

In the embodiment of the plug assembly of the present invention, as shown in fig. 1 and 2, the plug assembly includes a plug 1 and a converter 2 fitted to the plug 1. The plug 1 is provided with a control circuit for controlling power conversion, the control circuit is provided with a fracture formed in the insertion surface of the plug 1, one side, matched with the insertion surface of the plug 1, of the converter 2 is provided with a short-circuit conductor, and when the converter 2 is installed on the plug 1, the fracture of the control circuit is communicated. As shown in fig. 4 and 5, fracture insertion holes 3 are respectively formed at two sides of the fracture of the plug 1, and the fracture insertion holes 3 are the fracture insertion structure of the fracture. The inserting face side of the plug 1 is further provided with a groove 11, the fracture jack 3 is located in the groove 11, and a fracture protection insulator 8 for protecting the fracture jack 3 is arranged outside the fracture jack. As shown in fig. 6 to 8, the short-circuit conductor of the converter 2 is a U-shaped pin 4, and two parallel arms of the U-shaped pin 4 form a conductor plug part corresponding to the fracture jack 3. A short circuit protection insulator 9 for protecting the U-shaped needle 4 is arranged on one side of the converter 2 matched with the plug 1, the short circuit protection insulator 9 in the embodiment is a sleeve body, and a channel for inserting the fracture protection insulator 8 is formed at the end part of the sleeve body. The side of the converter 2 on which the U-shaped needle 4 is provided is also provided with a converter protective insulator 5.

As shown in fig. 3, the control circuit in this embodiment is connected to the plug 1, and the principle of the control circuit is as follows: detecting the level of a detection point 1 in the graph, and when the detection point 1 is at a high level, detecting that the point is a logic 1 by the IO port of the single chip microcomputer, and judging that the U-shaped pin 4 is not inserted into the fracture jack 3; when the level of the detection point 1 is low level, the IO port of the single chip microcomputer detects that the point is logic 0, and the U-shaped pin can be judged to be inserted into the fracture jack 3.

In the present embodiment, the plug pins 6 are provided on the mating surface of the plug 1, and the plug pins 6 are power contacts of the plug 1. One side of the converter 2, which is matched with the inserting surface of the plug 1, is provided with a converter jack 7, and the other side is provided with a converter pin 10. The plug pins 6 and the converter sockets 7 are plugged to secure the mounting of the converter 2 on the plug 1. When the converter 2 is installed on the plug 1, the converter pins 10 are used for being plugged into a charging device to charge the charging device; when the converter 2 is not mounted on the plug 1, the plug pins 6 are used to be inserted into a charging device to charge the charging device. In order to increase the versatility of the plug, the plug pins 6 and the converter pins 10 in this embodiment are all plug-in type pins. In other embodiments, converter pins matched with the plug side insertion surfaces can be arranged on both sides of the converter, plug jacks are arranged on the matching surfaces of the plugs, a short-circuit conductor is arranged on one side surface of the converter, at the moment, when one side of the converter, on which the short-circuit conductor is arranged, is matched with the plugs, a fracture of a control circuit is communicated, and the charging mode of the charging gun is controlled to be in a conversion current charging mode; when one side of the converter, which is not provided with the short-circuit conductor, is matched with the plug, the fracture of the control circuit is in a disconnected state, and the charging mode of the charging gun is controlled to be in an original current charging mode. In other embodiments, the plug pins may be circular pins.

The plug 1 in the embodiment is a charging plug of a charging gun, when the plug 1 is plugged with the converter 2, the U-shaped needle 4 is inserted into the fracture jack 3 to communicate the fracture of the control circuit, a signal source is fed back to a controller of the charging gun, the charging mode of the charging gun is controlled through the controller, and even if the charging device is in a conversion current charging mode; when the converter 2 is not installed on the plug 1, the fracture of the control circuit is in a disconnection state, a signal source is fed back to a controller of the charging gun, the charging mode of the charging gun is controlled through the controller, and even if the charging device is in an original current charging mode. Compared with the charging mode judged through a resistor in the prior art, the reliability of judgment can be ensured through reliable circuit connection, and the risk of judgment errors is greatly reduced. In addition, the fractures can be communicated only through the short-circuit conductor, the fractures of the control circuit cannot be communicated due to foreign matters, and safety accidents caused by the fact that the fractures of the control circuit are communicated by mistake are avoided; the fracture does not have the inefficacy risk of using repeatedly, can carry out effective control to charging current. The problem of the charging device damage or reduce charging efficiency caused by charging mode judgment error of the plug assembly in the prior art is solved.

In other embodiments, the two sides of the fracture can be respectively provided with fracture contact parts protruding out of the mating surface of the plug, the short-circuit conductor is provided with conductor contact parts communicated with the two fracture contact parts, and when the converter is installed on the plug, the conductor contact parts are contacted with the fracture contact parts to communicate the fracture of the control circuit; the connector comprises a connector body, a connector plug, a conductor inserting part, a control circuit and a connector plug, wherein the connector plug is connected with the connector body through the connector plug; the conductor plug part can also be of a block-shaped or rod-shaped structure; a fracture protection insulator protruding out of the plugging surface can be arranged on the plugging surface of the plug, the fracture plugging structure is arranged in the fracture protection insulator, a groove is arranged on one side of the converter matched with the plug, the conductor plugging part is arranged in the groove, a short-circuit protection insulator is arranged on the outer side of the conductor plugging part, the fracture protection insulator is a sleeve body, and a channel for the short-circuit protection insulator to be inserted is formed at the end part of the sleeve body; the short-circuit conductor can also consist of two straight pins and a middle conductor connecting the two straight pins.

The specific working process of the plug assembly of the invention is as follows: assume that the charging current of the original current charging mode is 16A and the charging current of the switched current charging mode is 10A. When charging equipment with charging current of 16A is charged, only the plug 1 is inserted into the socket, at the moment, the fracture of the control circuit is in a disconnected state, the controller judges that the converter is not connected to the plug through a feedback signal, and electricity with charging current of 16A is output to the plug 1, namely the plug 1 is in an original current charging mode; when charging equipment with charging current of 10A is charged, the converter 2 is connected to the plug 1, then the converter pin 10 of the converter 2 connected to the plug 1 is inserted into the socket, at the moment, the fracture of the control circuit is communicated, a control signal is fed back to the controller of the charging gun, the charging gun is controlled to switch the charging mode, the charging current of 10A is output to the plug, and the plug is in the conversion current charging mode.

In the specific embodiment of the charging gun of the present invention, the charging gun includes the plug assembly, and the structure of the plug assembly in this embodiment is the same as that described in the specific embodiment of the plug assembly, and is not described again.