CN210576595U - Charging plug, charging wire and charger - Google Patents

Abstract

The utility model relates to the technical field of connectors, and specifically discloses a charging plug, a charging cable and a charger. The charging plug is used to be inserted into a USB female socket, which comprises a tongue plate and a first conductive terminal located on the front of the tongue plate. and a second conductive terminal located on the back of the tongue plate, the first conductive terminal is used to be connected in series with the second conductive terminal to form a charging loop. The utility model provides a charging plug, a charging cable and a charger, which can solve the problem that the traditional plug cannot be inserted into the traditional female socket in both forward and reverse directions.

Description

Charging plugs, cables and chargers

technical field

The utility model relates to the technical field of connectors, in particular to a charging plug, a charging cable and a charger.

Background technique

The charger generally includes a charging base for alternating current to direct current and a charging cable that is plugged into the charging base.

At present, many charging bases use USB sockets, and terminals such as mobile phones can be charged only by inserting the USB plug of the charging cable into the USB socket. Referring to FIG. 1 , according to the standard, the current USB socket generally includes a socket metal shell 101 for grounding, and the bottom of the socket metal shell 101 is provided with a grounding spring 1011 which is upwardly tilted. A first female PIN needle 102 , a second female PIN needle 103 , a third female PIN needle 104 and a fourth female PIN needle 105 are arranged inside the female metal housing 101 . Among them: the first female PIN pin 102 is often used to provide a stable DC voltage, the second female PIN pin 103 is often used as a negative data transmission pin, the third female PIN pin 104 is often used as a data transmission positive pin, and the fourth female PIN pin 104 is often used as a data transmission positive pin. The socket PIN pin is often used for grounding. Referring to FIG. 2, the current USB plug includes a plug metal shell 201, and the plug metal shell 201 is sequentially provided with a first plug PIN pin 202 corresponding to the first female PIN pin 102, and a second female PIN pin 103 corresponding to The second plug PIN pin 203 , the third plug PIN pin 204 corresponding to the third female PIN pin 104 , and the fourth plug PIN pin 205 corresponding to the fourth female PIN pin 105 .

The current USB socket is directional when it is inserted into the USB plug, that is, the USB plug can be inserted into the USB socket only when the PIN pin of the plug and the PIN pin of the socket are opposite to each other. The PIN pin 202 of the plug is connected in contact, the PIN pin 105 of the fourth female socket is in contact with the PIN pin 205 of the fourth plug, the PIN pin 102 of the first female socket, the PIN pin 202 of the first plug, the electronic device to be charged, and the PIN pin of the fourth plug 205 and the fourth female PIN pin 105 are connected in series in sequence to form a charging loop. If the up and down direction of the USB plug does not correspond to the USB female socket, the USB plug will interfere with the USB female socket, so that the USB plug cannot be inserted into the USB female socket. Therefore, before inserting the USB plug and the USB female seat, it is often necessary to observe the directions of the USB plug and the USB female seat respectively, and then insert the USB plug into the USB female seat in the correct direction. Obviously, it is necessary to The docking method of observing first and then inserting it correctly is cumbersome.

Therefore, the existing charger needs to be improved to solve the problem that the traditional plug cannot be inserted into the traditional female socket in both directions.

Utility model content

One purpose of the present utility model is to provide a charging plug, a charging cable and a charger, which can solve the problem that the traditional plug cannot be inserted into the traditional female socket in both forward and reverse directions.

In order to achieve the above purpose, on the one hand, the present invention provides a charging plug for inserting into a USB socket, which includes a tongue plate, a first conductive terminal located on the front of the tongue plate, and a first conductive terminal located on the back of the tongue plate. Two conductive terminals, the first conductive terminal is used for connecting in series with the second conductive terminal to form a charging loop.

Preferably, the USB socket includes a socket metal shell for grounding and a first socket PIN pin for power supply;

When the charging plug is inserted into the USB socket in the forward direction, the PIN pin of the first socket is electrically connected to the first conductive terminal, and the metal shell of the socket is electrically connected to the second conductive terminal connect;

When the charging plug is reversely inserted into the USB socket, the PIN pin of the first socket is electrically connected to the second conductive terminal, and the metal shell of the socket is electrically connected to the first conductive terminal connect.

Preferably, the bottom of the base metal shell extends upward with a grounding elastic sheet;

When the charging plug is inserted into the USB socket in the forward direction, the grounding elastic sheet is in contact with the second conductive terminal;

When the charging plug is reversely inserted into the USB female socket, the grounding elastic sheet is in contact and connected with the first conductive terminal.

preferably,

The first conductive terminal and the second conductive terminal are arranged centrally symmetrically with respect to the geometric center of the tongue plate.

preferably,

The horizontal distance between the first conductive terminal and the second conductive terminal is equal to the horizontal distance between the PIN pin of the first female socket and the grounding elastic sheet.

On the other hand, the present utility model provides a charging cable, comprising any of the above-mentioned charging plugs, and further comprising:

a device plug, which is used for plugging with the electronic device to be charged;

A wire, the wire includes a first wire core and a second wire core, two ends of the first wire core are respectively electrically connected with the first conductive terminal and the device plug; both ends of the second wire core are respectively connected with The second conductive terminal is electrically connected to the device plug.

Preferably, the device plug includes a positive terminal and a negative terminal, a circuit board is further arranged between the wire and the device plug, and the circuit board is provided with a switching circuit, and the switching circuit is used to connect the positive terminal to the USB The PIN pin of the first female seat of the female seat is electrically connected, and the negative terminal is electrically connected to the ground spring of the USB female seat.

In another aspect, the present invention also provides a charger, which includes any of the above-mentioned charging cables, and also includes a charging base, wherein the charging base includes a housing and a USB female base that is plugged with the charging plug.

The beneficial effects of the utility model are: providing a charging plug, a charging cable and a charger. On the one hand, the plug metal shell is not arranged on the periphery of the tongue plate, which is beneficial for the tongue plate to be inserted into the insertion space of the USB socket in both positive and negative directions. It solves the structural interference problem that the traditional plug cannot be inserted into the traditional female socket in reverse; Conditionally, the first conductive terminal and the second conductive terminal are fixed on the front and back of the tongue plate respectively, and as long as the positions of the first conductive terminal and the second conductive terminal are properly controlled, the charging plug can be inserted with the front side up and the back side up. The electrical connection with the USB socket can be realized in the space, which solves the circuit conduction problem that the traditional plug cannot be electrically connected with the traditional socket when reversely inserted. Therefore, the charging plug provided by the present invention can be inserted into the USB female socket in both positive and negative directions and can realize the charging function.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative labor.

Fig. 1 is the structural representation of the USB socket provided by the utility model;

2 is a schematic structural diagram of a USB plug provided by the background art;

3 is a schematic structural diagram of a charging plug provided by an embodiment;

FIG. 4 is a schematic structural diagram of a charging cable provided by an embodiment.

In the picture:

101, the metal shell of the female seat; 1011, the grounding shrapnel; 102, the pin of the first female seat; 103, the pin of the second female seat; 104, the pin of the third female seat; 105, the PIN of the fourth female seat;

201, the metal shell of the plug; 202, the PIN pin of the first plug; 203, the PIN pin of the second plug; 204, the PIN pin of the third plug; 205, the PIN pin of the fourth plug;

301, tongue plate; 302, first conductive terminal; 303, second conductive terminal;

4. Conductor; 401, the first wire core; 402, the second wire core;

5. Circuit board;

6. Equipment plug; 601, positive terminal; 602, negative terminal.

Detailed ways

In order to make the purpose, features and advantages of the present utility model more obvious and understandable, the technical solutions in the embodiments of the present utility model will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, The embodiments described below are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that when a component is considered to be "connected" to another component, it may be directly connected to the other component or may also have a centrally positioned component. When a component is considered to be "set on" another component, it can be set directly on the other component or there may be a centered set of components at the same time.

In addition, the terms "long", "short", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, which are only for the convenience of describing the present invention, rather than indicating or implying that The device or element must have this specific orientation and operate in a specific orientation configuration, which is not to be understood as a limitation of the present invention.

The technical solutions of the present utility model will be further described below with reference to the accompanying drawings and through specific embodiments.

This embodiment provides a charger, which includes a charging base and a charging cable that is plugged into the charging base. The charging base includes a shell and a USB female socket fixedly connected with the shell. The charging cable includes a charging plug for inserting into the USB socket, a wire 4 electrically connected to the charging plug at one end, and a device plug 6 electrically connected to the other end of the wire 4 . Specifically, the device plug 6 is used to be inserted into a charging port of an electronic device such as a mobile phone and a tablet computer, which may be a Type-C interface or a Micro-USB interface or the like.

In this embodiment, the USB socket is used to connect with the charging plug. In order to make the charging plug suitable for the current USB socket, the USB socket provided in this embodiment can be consistent with the structure of the current USB socket, as shown in the figure As shown in 1, the USB female socket includes a female socket metal shell 101 for grounding, and the bottom of the female socket metal shell 101 is provided with a grounding spring piece 1011 that is upwardly tilted. A first female PIN needle 102 , a second female PIN needle 103 , a third female PIN needle 104 and a fourth female PIN needle 105 are arranged inside the female metal housing 101 . Among them: the first female PIN pin 102 is often used to provide a stable DC voltage, the second female PIN pin 103 is often used as a negative data transmission pin, the third female PIN pin 104 is often used as a data transmission positive pin, and the fourth female PIN pin 104 is often used as a data transmission positive pin. Header pins are often used for grounding. In general, the first female PIN 102 and the fourth female PIN 105 cooperate to form a charging circuit, but since the first female PIN 102 and the fourth female PIN 105 are located on the same side of the tongue plate 301, so The electrical continuity when the charging plug is inserted backwards cannot be achieved. Considering that both the female base metal casing 101 and the fourth female base PIN pin 105 are used for grounding, in this embodiment, the first female base PIN pin 102 is used to cooperate with the female base metal casing 101 to form a charging circuit. The upper and lower layout of the PIN pin 102 of the female socket and the grounding spring 1011 of the metal shell 101 of the female socket is conducive to the realization of electrical conduction between the positive and negative insertion of the charging plug, and secondly, there is no need to modify the existing USB socket, there are The charging plug is suitable for all USB sockets currently in use.

It should be noted that this embodiment mainly considers how to realize the charging function, and how to realize the data transmission function while charging is not the focus of this embodiment. Therefore, this embodiment focuses on introducing the first female PIN pin 102 and the female metal shell. body 101, the second female PIN needle 103 and the third female PIN needle 104 will not be described in detail.

Correspondingly, referring to FIG. 3 , the charging plug for connecting with the USB socket includes a tongue plate 301 , a first conductive terminal 302 located on the front of the tongue plate 301 and a second conductive terminal 303 located on the back of the tongue plate 301 , the first conductive terminal 302 is used to be connected in series with the second conductive terminal 303 to form a charging loop.

Preferably, specifically, since the charging plug is not provided with the plug metal shell 201, the tongue plate 301 can be inserted into the USB socket in forward and reverse directions. Further, the positions of the first conductive terminal 302 and the second conductive terminal 303 are controlled to make them Aligning with the PIN pin 102 of the first female socket and the grounding spring 1011 respectively enables the charging plug to be electrically connected to the USB socket when inserted into the USB socket in both forward and reverse directions. Generally, the USB socket is provided with an insertion space for the charging plug to be inserted, and the PIN pin 102 of the first socket and the grounding spring 1011 will be symmetrically arranged with respect to the geometric center of the insertion space; as long as it is ensured that:

①The first conductive terminal 302 and the second conductive terminal 303 are symmetrically arranged with respect to the geometric center of the tongue plate 301;

②The horizontal distance between the first conductive terminal 302 and the second conductive terminal 303 is equal to the horizontal distance between the PIN pin 102 of the first female socket and the grounding spring 1011.

Satisfying the above conditions can make: when the charging plug is inserted in the forward direction, that is, when the charging plug is inserted into the insertion space with the front face up, the first female PIN pin 102 is in contact with the first conductive terminal 302, and The grounding spring 1011 is in contact with the second conductive terminal 303; when reversely inserted, that is, when the charging plug is inserted into the insertion space face down, the first female PIN pin 102 and the The two conductive terminals 303 are in contact with each other, and the ground spring 1011 is in contact with the first conductive terminal 302 .

It should be noted that, in the charging plug, charging cable and charger provided by the present invention, on the one hand, the plug metal shell 201 is not arranged on the periphery of the tongue plate 301, which is beneficial to the insertion of the tongue plate 301 into the USB socket in both directions. In the space, the problem of structural interference that the traditional plug cannot be inserted into the traditional female socket in reverse is solved; on the other hand, the PIN pin 102 of the first female socket and the grounding spring 1011 are fully utilized in the accommodating slot of the USB socket. Under the existing conditions of symmetrical arrangement (specifically, the first female PIN pin 102 is located in the upper left corner of the accommodating slot, and the ground spring 1011 is located in the lower right corner of the accommodating slot), the first conductive terminal 302 and the second conductive terminal 303 are respectively It is fixed on the front and back of the tongue plate 301. As long as the positions of the first conductive terminal 302 and the second conductive terminal 303 are properly controlled, the charging plug can be inserted into the insertion space with the front side up and the back side up. The connection solves the circuit conduction problem that the traditional plug cannot be electrically connected to the traditional female socket when reversely inserted. Therefore, the charging plug provided by the present invention can be inserted into the USB female socket in both positive and negative directions and can realize the charging function.

Referring to FIG. 4 , the wire 4 includes a first wire core 401 and a second wire core 402, two ends of the first wire core 401 are respectively electrically connected to the first conductive terminal 302 and the device plug 6; the Two ends of the second wire core 402 are respectively electrically connected to the second conductive terminal 303 and the device plug 6 . A circuit board 5 is also provided between the wire 4 and the device plug 6, and the circuit board 5 includes a switching circuit, and the switching circuit is used to connect the positive terminal 601 to the first female PIN pin 102 of the USB female socket. electrically connected, and the negative terminal 602 is electrically connected to the ground spring 1011 of the USB socket.

Specifically, the first wire core 401 and the second wire core 402 are the input terminals of the switching circuit, and the positive terminal 601 and the negative terminal 602 are the output terminals of the switching circuit. When the charging plug is inserted into the USB socket in the forward direction, the PIN pin 102 of the first socket is in contact with the first conductive terminal 302, the first wire core 401 is positive, and the second wire core 402 is negative, so the switching circuit makes The first wire core 401 is in communication with the positive terminal 601, and the second wire core 402 is in communication with the negative terminal 602; when the charging plug is inserted into the USB socket in the forward direction, the PIN pin 102 of the first socket is in contact with the second conductive terminal 303 For connection, the first wire 401 is negative and the second wire 402 is positive, so the switching circuit makes the second wire 402 communicate with the positive terminal 601 and the first wire 401 communicate with the negative terminal 602 . It should be noted that the specific structure of the switching circuit is in the prior art and is not the focus of this embodiment, so the specific structure will not be described in detail.

The above embodiments are only used to illustrate the technical solutions of the present utility model, but not to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be used for the foregoing implementations. The technical solutions described in the examples are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (8)

1. A charging plug is used for being inserted into a USB female socket and is characterized by comprising a tongue plate, a first conductive terminal located on the front side of the tongue plate and a second conductive terminal located on the back side of the tongue plate, wherein the first conductive terminal is used for being connected with the second conductive terminal in series to form a charging loop.

2. The charging plug of claim 1, wherein the USB female socket comprises a female socket metal housing for grounding and a first female socket PIN for power supply;

when the charging plug is inserted into the USB female socket in the forward direction, the first female socket PIN is electrically connected with the first conductive terminal, and the female socket metal shell is electrically connected with the second conductive terminal;

when the charging plug is reversely inserted into the USB female socket, the first female socket PIN is electrically connected with the second conductive terminal, and the female socket metal shell is electrically connected with the first conductive terminal.

3. The charging plug of claim 2, wherein a grounding spring extends upward from the bottom of the female housing metal shell;

when the charging plug is inserted into the USB female socket in the forward direction, the grounding elastic sheet is in contact connection with the second conductive terminal;

when the charging plug is reversely inserted into the USB female socket, the grounding elastic sheet is in contact connection with the first conductive terminal.

4. The charging plug according to claim 3,

the first conductive terminal and the second conductive terminal are arranged symmetrically with respect to the geometric center of the tongue plate.

5. The charging plug according to claim 4,

the horizontal distance between the first conductive terminal and the second conductive terminal is equal to the horizontal distance between the first female seat PIN needle and the grounding elastic sheet.

6. A charging cord comprising the charging plug of any one of claims 1 to 5, further comprising:

the device plug is used for being plugged with electronic equipment to be charged;

the conducting wire comprises a first wire core and a second wire core, and two ends of the first wire core are respectively and electrically connected with the first conductive terminal and the equipment plug; and two ends of the second wire core are respectively electrically connected with the second conductive terminal and the equipment plug.

7. The charging wire of claim 6, wherein the device plug comprises a positive terminal and a negative terminal, a circuit board is further disposed between the conducting wire and the device plug, the circuit board is provided with a switching circuit, and the switching circuit is used for electrically connecting the positive terminal with a first female socket PIN PIN of the female USB socket and electrically connecting the negative terminal with a grounding elastic sheet of the female USB socket.

8. A charger comprises the charging wire of any one of claims 6 to 7, and further comprises a charging seat, wherein the charging seat comprises a shell and a USB female seat connected with the charging plug in a plugging mode.

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