CN218997303U

CN218997303U - Portable changeover plug and socket for electric automobile

Info

Publication number: CN218997303U
Application number: CN202222670511.7U
Authority: CN
Inventors: 庄锦强; 程庆; 田军
Original assignee: Changshu Lixing Photoelectric Science & Technology Co ltd
Current assignee: Changshu Lixing Photoelectric Science & Technology Co ltd
Priority date: 2022-10-11
Filing date: 2022-10-11
Publication date: 2023-05-09
Anticipated expiration: 2032-10-11

Abstract

The utility model discloses a portable conversion plug and a portable conversion socket for an electric automobile, which comprise a conversion plug and a conversion socket, wherein the conversion plug comprises a plug fixing shell, the plug fixing shell is provided with a male terminal fixing hole, a male terminal is arranged in the male terminal fixing hole, and the male terminal is connected with a circuit; the side surface of the plug fixing shell is provided with a fastener hole, and an elastic fastener is arranged in the fastener mounting hole; the conversion socket comprises a socket shell, a socket fixing shell is arranged in the socket shell, a plug-in unit is arranged in the socket fixing shell, a female terminal is arranged in the plug-in unit, and the female terminal is connected with a plug copper pin at the lower part of the socket fixing shell; a button is arranged on the outer side of the socket fixing shell, and the elastic fastener is contracted by pressing the button; the plug fixing shell is inserted into the socket fixing shell, the male terminal is inserted into the female terminal of the plug, and the elastic fastener is positioned in the pressing hole so that the conversion plug is fixedly connected with the conversion socket; the utility model realizes that the plug can be electrified for use with a plurality of different national sockets, and can realize different output currents.

Description

Portable changeover plug and socket for electric automobile

Technical Field

The utility model relates to a portable conversion plug and a socket for an electric automobile, which are used for connecting and charging the electric automobile, and belong to the technical field of charging and connecting of new energy electric automobiles.

Background

With the gradual popularization of new energy automobiles, the demand of the new energy automobiles is increased, and the development prospect of the new energy automobiles is immeasurable. The development of the electric automobile is directed to a new energy automobile, the electric automobile is charged by virtue of a built-in battery to replace the traditional fuel technology, the electric automobile needs to be charged frequently, and the universality of a charging device is also particularly important while the charging safety is ensured.

Common electric automobile charging wire in market becomes a whole that can't dismantle for plug and electric wire through integrated into one piece's mode, and the drawback of this mode is that charging plug only can be suitable for with a socket, and electric automobile often can go on through domestic mode of charging, and domestic at present has 10A and 16A two kinds of output current sockets, and in addition the socket pattern in different country regions, output current is also different, can't realize the commonality, needs to be equipped with multiple charging wire according to different socket patterns, is difficult to realize extensive production, has also indirectly restricted the development of electric automobile trade.

Disclosure of Invention

The utility model aims to provide a portable conversion plug and a socket for an electric automobile, which realize that one charging plug can be electrified with various power sockets for use.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the portable change-over plug and socket for electric automobile, it includes change-over plug and change-over socket, change-over plug inserts in the change-over socket, specifically:

the conversion plug comprises a plug fixing shell, wherein the plug fixing shell is provided with a male terminal fixing hole, a male terminal is arranged in the male terminal fixing hole, and the male terminal is connected with a circuit; the side of the plug fixing shell is provided with a fastener hole, and an elastic fastener is arranged in the fastener mounting hole.

The conversion socket comprises a socket shell, a socket fixing shell is arranged in the socket shell, an insert is arranged in the socket fixing shell, a female terminal is arranged in the insert, and the female terminal is connected with a plug copper pin at the lower part of the socket fixing shell; the socket comprises a socket fixing shell, a socket, a button, a spring fastener and a button hole, wherein the button is arranged on the outer side of the socket fixing shell, the button is arranged in the button hole, and the spring fastener is contracted by pressing the button; the plug fixing shell is inserted in the socket fixing shell, the male terminal is inserted in the female terminal of the plug-in unit, and the elastic fastener is located in the pressing hole to enable the conversion plug to be fixedly connected with the conversion socket.

The public terminal is public terminal of ground wire, the public terminal of live wire, the public terminal of zero line and the public terminal of signal line, and corresponding connecting wire is current-carrying ground wire, current-carrying live wire, current-carrying zero line and signal line respectively, female terminal is the female terminal of ground wire, the female terminal of live wire, the female terminal of zero line and the female terminal of signal line.

Specifically, as with the existing plug, the male terminal is fixed with the plug fixing case by injection molding at the upper portion of the plug fixing case.

Specifically, in order to realize the function of an elastic fastener (namely, protruding the side surface of the plug fixing shell in a normal state, retracting when pressing, and resetting to a protruding state after the pressing force disappears), the elastic fastener comprises a fastener and a limiting block, wherein a fastener hole consists of a fastener mounting hole and a limiting hole, a fastener spring is mounted at the bottom of the fastener in the fastener mounting hole, and the top of the fastener protrudes out of the side surface of the plug fixing shell by the fastener spring; the limiting block is located in the limiting hole, a positioning pin is arranged in the limiting hole and used for limiting the limiting block, and the fastener is enabled to be limited in the fastener installation hole.

Specifically, in order to realize the button to press and reset, the button has the spacing knot of pressing post and both sides, the spacing knot makes the button break away from the button hole, the socket fixed shell has the spacing knot hole of pressing the hole and holding the spacing knot, spacing hole position corresponds with spacing knot hole site, between button and socket fixed shell outside, press the post overcoat and have the button spring.

The principle of the conversion plug and the socket is that a conversion socket is added between a traditional electric automobile charging wire and the socket, one end of the conversion socket is designed to be capable of being inserted with the conversion plug on the electric automobile charging wire, the other end (the inserting piece) of the conversion socket can be designed in various modes according to standard plug sizes in different countries, the conversion plug and the socket can be respectively connected with the sockets in different countries in an electrified mode, different output currents can be achieved, and the structure design solves the problem that the conversion plug can be achieved by one charging plug for different sockets in the charging process. The change-over plug and the socket are small in design volume, light, convenient and fast, low in development cost, high in safety performance, capable of being quickly plugged and unplugged and high in universality.

The utility model realizes that one charging plug can be electrified with various sockets for use; the power supply plug and the conversion socket are compact in internal design structure, small in size, light and convenient; the plug has reasonable internal design, easy molding and low development cost; the plug and the socket are designed with a buckle type spring structure, so that the plug and the socket can be quickly plugged; the method can preferentially select the common raw materials in the market, and reduce the number and cost of die sinking. The current-carrying components of the conversion plug and the conversion socket are rearranged, so that the product appearance is minimized, and meanwhile, the related reliability test requirements can be met. The current detection and temperature detection component is designed into the conversion socket, so that the accuracy of current and temperature detection in the power-on process can be ensured. Prolonging the service life of the plug.

Drawings

The utility model will be described in further detail with reference to the drawings and the detailed description.

Fig. 1 is an exploded view of a portable plug for an electric vehicle.

Fig. 3 is a schematic top view of the conversion plug after assembly.

Fig. 4 is a bottom view schematic diagram of the conversion plug after assembly.

Fig. 2 is an exploded view of a portable switching jack for an electric vehicle.

Fig. 5 is an assembled schematic view of the conversion socket.

Fig. 6 is a schematic diagram of the locking and unlocking structure of the conversion plug and the socket lock catch.

Fig. 7 is a complete schematic diagram of a portable switching plug and socket of an electric vehicle.

Detailed Description

As shown in fig. 1 to 7, the portable conversion plug and socket for electric automobile includes a conversion plug 35 and a conversion socket 34, specifically:

as shown in fig. 1, the conversion plug 35 includes a plug fixing housing 18, the plug fixing housing 18 having a male terminal fixing hole in which a male terminal is installed, the male terminal being connected with a line. Specifically, the male terminals are a ground male terminal 17, a live male terminal 10, a neutral male terminal 22 and three signal line male terminals (a current detection male terminal 14, a temperature detection male terminal 15, a temperature detection male terminal 16), and the corresponding connection lines are a current-carrying ground 4, a current-carrying live 6, a current-carrying neutral 5 and signal lines (a signal line 7, a signal line 8, a signal line three 9), respectively. As with the conventional plug, the male terminal is fixed to the plug fixing case 18 by injection molding at the upper portion of the plug fixing case 18.

The plug fixing case 18 has a fastener hole on a side surface thereof, and elastic fasteners (two provided for both sides of the plug fixing case 18) are installed in the fastener installation hole. The elastic fastener comprises

fasteners

12,20 and a limiting block which are connected, the fastener hole is formed by a fastener mounting hole and a limiting hole, a fastener spring 19 is arranged at the bottom of the fastener in the fastener mounting hole, and the top of the fastener protrudes out of the side surface of the plug fixing shell 18 through the fastener spring 19; the limiting block is positioned in a limiting hole, positioning pins 11 and 21 (which can be inserted from the end face of the plug fixing shell 18) are arranged in the limiting hole, and the

positioning pins

11 and 21 are used for limiting the limiting block, so that the

fasteners

12 and 20 are limited in the fastener mounting holes.

The conversion socket 34 includes a socket housing 28, a socket fixing case 23 is installed in the socket housing 28, a plug is provided in the socket fixing case 23, and female terminals are installed in the plug, and the female terminals are a ground female terminal 27, a live female terminal 24, a neutral female terminal 31, and three signal line female terminals (installed on the signal detecting member 30).

The female terminal is connected with a plug copper pin 29 at the lower part of the socket fixing shell 23; the socket fixing case 23 is provided with buttons 25 and 33 (two are arranged on two sides) on the outer side, the socket housing 28 is provided with button holes, the

buttons

25 and 33 are positioned in the button holes, and the

buttons

25 and 33 are pressed to enable the elastic fasteners to contract. The plug fixing case 18 is inserted into the socket fixing case 23, the male terminal is inserted into the female terminal of the corresponding plug, and the

fasteners

12,20 are positioned in the pressing holes to fixedly connect the conversion plug with the conversion socket.

The

push buttons

25,33 have push posts and limit buckles on both sides, the limit buckles prevent the push buttons from separating from the button holes, the socket fixing shell has push holes and limit buckle holes for accommodating the limit buckles, the positions of the limit holes correspond to the positions of the limit buckle holes, and the

push button springs

26,32 are sleeved outside the push posts between the

push buttons

25,33 and the outer sides of the socket fixing shell 23.

And (3) assembling and installing:

1. the conversion plug 35 is formed by integral injection molding, and the current detection male terminal 14, the temperature detection male terminal 15, the temperature detection male terminal 16, the live wire male terminal 10, the ground wire male terminal 17 and the neutral wire male terminal 22 are formed into a whole with the plug fixing shell 18 by injection molding.

2. And (3) peeling the outer skin of the electric wire 3 according to design requirements, peeling inner skins of core wires of the current-carrying ground wire 4, the current-carrying zero wire 5, the current-carrying live wire 6, the signal wire I7, the signal wire II 8 and the signal wire III 9, controlling the exposed length of the copper wire, and confirming that the size meets standard requirements after peeling.

3. And according to the design required size, the corresponding core wires on the electric wires are connected with the male terminals in a welding mode.

4. The fasteners and springs on both sides of the adapter plug 35 are placed in the fastener mounting holes corresponding to both sides of the plug fixing case 18, respectively, and finally fixed by the

positioning pins

11 and 21.

5. The injection molding of the plug inner die 2 and the plug outer die 1 (the surface is provided with the grip position 36) ensures that the product achieves the safety reliability standard requirement and the waterproof and dustproof effects.

6. The conversion socket 34 adopts a plug copper pin 29 commonly used in the market at present, and the electric wires for the ground wire, the live wire and the null wire crimping zone on the copper pin are respectively connected with the ground wire female terminal 27, the live wire female terminal 24 and the null wire female terminal 31 in a welding mode.

7. The signal detecting member 30 is placed in the corresponding area of the conversion socket, the corresponding holes in the socket fixing case 23 are respectively penetrated into the female terminals, and finally the socket housing 28 is penetrated into the insert sheet of the plug copper pin 29 and is connected with the socket fixing case 23 into a whole by ultrasonic compression joint.

8. Button 25, spring 26, spring 32, button 33 are assembled 34 into corresponding holes on both sides of the conversion socket, respectively.

9. According to the design requirement, the exposed length of the ground wire male terminal 17 on the conversion plug is larger than that of the live wire male terminal 10 and the neutral wire male terminal 22, when the conversion plug is plugged with the socket, the ground wire is contacted firstly, and finally the ground wire is disconnected when the conversion plug is pulled out, so that the safety performance of a product can be improved. Elastic stop is arranged in the female terminal of the conversion socket, and the pull-out force of the male terminal on the conversion plug can be increased after the plug is plugged.

10. The

fasteners

12 and 20 on the two sides of the conversion plug are respectively inserted into the two side holes of the socket, so as to achieve the locking effect. When the conversion plug is separated from the socket, the button 25 and the button 33 on the two sides of the conversion socket are pressed tightly, so that the fastener 12 and the fastener 20 on the two sides of the conversion plug are driven to move out of the button holes on the two sides of the socket, and the conversion plug can be pulled out of the socket easily.

The above embodiments do not limit the present utility model in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of the present utility model.

Claims

1. The portable conversion plug and socket for the electric automobile is characterized by comprising a conversion plug and a conversion socket, wherein the conversion plug is inserted into the conversion socket;

the conversion plug comprises a plug fixing shell, wherein the plug fixing shell is provided with a male terminal fixing hole, a male terminal is arranged in the male terminal fixing hole, and the male terminal is connected with a circuit; the side surface of the plug fixing shell is provided with a fastener hole, and an elastic fastener is arranged in the fastener hole;

the conversion socket comprises a socket shell, a socket fixing shell is arranged in the socket shell, an insert is arranged in the socket fixing shell, a female terminal is arranged in the insert, and the female terminal is connected with a plug copper pin at the lower part of the socket fixing shell;

the socket comprises a socket fixing shell, a socket, a button, a spring fastener and a button hole, wherein the button is arranged on the outer side of the socket fixing shell, the button is arranged in the button hole, and the spring fastener is contracted by pressing the button; the plug fixing shell is inserted in the socket fixing shell, the male terminal is inserted in the female terminal of the plug-in unit, and the elastic fastener is located in the pressing hole to enable the conversion plug to be fixedly connected with the conversion socket.

2. The portable power conversion plug and socket for an electric vehicle according to claim 1, wherein: the male terminal is a ground wire male terminal, a fire wire male terminal, a zero wire male terminal and a signal wire male terminal, and the female terminal is a ground wire female terminal, a fire wire female terminal, a zero wire female terminal and a signal wire female terminal.

3. The portable power conversion plug and socket for an electric vehicle according to claim 1, wherein: and the male terminal is fixed with the plug fixing shell through injection molding at the upper part of the plug fixing shell.

4. The portable power conversion plug and socket for an electric vehicle according to claim 1, wherein: the elastic fastener comprises a fastener and a limiting block, wherein the fastener hole consists of a fastener mounting hole and a limiting hole, a fastener spring is arranged at the bottom of the fastener in the fastener mounting hole, and the top of the elastic fastener protrudes out of the side surface of the plug fixing shell through the fastener spring; the limiting block is located in the limiting hole, a positioning pin is arranged in the limiting hole and used for limiting the limiting block, and the fastener is enabled to be limited in the fastener installation hole.

5. The portable power conversion plug and socket for an electric vehicle according to claim 4, wherein: the button has the spacing knot of pressing post and both sides, spacing knot makes the button break away from the button hole, the socket set casing has the spacing knot hole of pressing the hole and holding spacing knot, spacing hole position corresponds with spacing knot hole site, between button and socket set casing outside, press the post overcoat and have the button spring.