WO2019007013A1 - Travel socket with self-resettable safety - Google Patents

Abstract

Disclosed is a travel socket with self-resettable safety, comprising a front housing (1), a rear housing (2) and a PCB board (3), wherein the PCB board is arranged between the front and rear housings; the front housing is provided with a socket hole (4); a socket bracket (5) is arranged below the socket hole; an elastic piece (6) is arranged in the socket bracket; the elastic piece is electrically connected to the PCB board; a plurality of USB jacks (10) is provided in the side surface of the front housing, and a fuse (7) is further arranged on the inner side of the front housing; the fuse is respectively connected to the USB jacks and the elastic piece; and the fuse comprises a heating wire (701), a temperature piece (702), a movable contact (703), and a stationary contact (704), with the temperature piece being electrically connected to the movable contact and the stationary contact. The travel socket is provided with a resettable fuse, wherein same is automatically disconnected when the fuse suffers an overload, and wherein same will be automatically reset after a certain period of time; and the travel socket is provided with a protective element having the dual functions of being resistant to excessive currents and being temperature-sensed, has a small volume, a long service life and a high reliability. It can precisely control damage, caused by an excessive current, to the product, and there is no need to replace the fuse while protecting an electric appliance, wherein same is more convenient for travel. The combination of the temperature piece and the heating wire has the property of being snap-tripped, and has the dual performance of taking action when sensing the current and the temperature.

Description

Travel socket with self-recovery insurance Technical field

The utility model relates to the field of travel sockets, in particular to a travel socket with self-recovery insurance.

Background technique

Nowadays, the multi-function conversion sockets on the market use ordinary fuses. If they are used improperly, it is troublesome to find the accessories. If the fuse is blown during the business trip, it will cause the user to have a computer, and the mobile phone cannot be used.

The disadvantage of the prior art is that once the insurance is blown, it cannot be used again, and must be replaced with new ones, causing inconvenience to the user. Therefore, there is an urgent need for a safer, easy to use and convenient use of the outlet to ensure the smooth and safe travel process.

Utility model content

In view of the above problems, the present invention aims to provide a travel socket with self-recovery insurance that is small in size, safe to use, convenient to maintain, and has automatic recovery.

To achieve the technical purpose, the solution of the present invention is: a travel socket with self-recovery insurance, comprising a front shell, a rear shell, and a PCB board, wherein the PCB board is disposed between the front shell and the rear shell.

a socket hole is disposed on the front casing, a socket bracket is disposed under the socket hole, a spring piece is disposed in the socket bracket, the spring piece is electrically connected to the PCB board, and a plurality of USB jacks are disposed on a side of the front shell ;

A plurality of pins are disposed between the front shell and the rear shell, the tail end of the pin is electrically connected to the elastic piece, the pin is correspondingly provided with a foot button, and the inner side of the front case is further provided with a fuse, and the fuse is respectively The USB jack and the shrapnel are electrically connected, and the fuse comprises a heating wire, a temperature piece, a moving contact, a static contact and a casing, wherein the casing is provided with a heating wire and a temperature piece, and the temperature piece and the moving contact are static. The contacts are electrically connected.

Preferably, a protection door is disposed between the socket hole and the elastic piece, and the protection door is respectively provided with a copper clip on the right and left sides.

Preferably, the rear case is provided with a rear shell bracket, and the rear shell bracket is provided with a long iron column and a short iron column, and the pins are disposed on the long iron column and the short iron column.

Preferably, the fuse further includes a sleeve.

Preferably, the pin includes a European pin, a US pin, an Australian pin and a British pin, and the foot button includes a European foot button, a US foot button, an Australian foot button and a British foot button.

The utility model has the beneficial effects that the travel socket of the present application is provided with a recovery fuse, and when the overload is automatically disconnected, after a certain time, the automatic recovery is performed, and the protection element with the double protection function of over-current and temperature sensing is small in size and long in service life. High reliability, it can accurately control the damage caused by the protection over-current. It does not need to replace the insurance while protecting the electric appliance, and it is more convenient in travel. The temperature sheet and the heating wire have a quick jump and have an induced current. With the dual performance of temperature and action, this application has a very accurate trip time to prevent product temperature from being too high and excessive current to cause product damage.

DRAWINGS

Figure 1 is a schematic view of the structure of the present invention;

Figure 2 is an exploded view of the present invention;

Figure 3 is a cross-sectional view of the fuse of the present invention.

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

As shown in FIG. 1-3, the specific embodiment of the present invention is a travel socket with self-recovery insurance, including a front case 1, a rear case 2, and a PCB board 3. The PCB board 3 is disposed on the front case. 1, between the rear shell 2,

A socket hole 4 is disposed on the front casing 1 , and a socket bracket 5 is disposed under the socket hole 4 . The socket bracket 5 is provided with a resilient piece 6 . The elastic piece 6 is electrically connected to the PCB board 3 , and the front shell 1 There are multiple USB jacks 10 on the side; USB jacks can charge external electronic devices, such as mobile phones, tablets, etc.

A plurality of pins 8 are disposed between the front cover 1 and the rear case 2. The rear end of the pin 8 is electrically connected to the elastic piece 6. The pin 8 is correspondingly provided with a foot button 9, and the inner side of the front case 1 is further disposed. There is a fuse 7, which is electrically connected to the USB jack 10 and the elastic piece 6, respectively. The fuse 7 includes a heating wire 701, a temperature piece 702, a moving contact 703, a static contact 704 and a housing 705. The housing 705 A heating wire 701 and a temperature piece 702 are disposed therein, and the temperature piece 702 is electrically connected to the movable contact 703 and the stationary contact 704. Among them, the temperature piece adopts a bimetal piece, and when the current of the USB jack or the socket hole (the shrapnel) exceeds the threshold, the fuse is automatically disconnected.

In order to enable the pin to be fused with the front case back, the rear case 2 is provided with a rear case support 13, and the rear case support 13 is provided with a long iron column 14 and a short iron column 15, and the pin 8 is disposed in the long The iron column 14 and the short iron column 15 are on.

In order to make the socket more secure and reliable, a protective door 11 is disposed between the socket hole 4 and the elastic piece 6. The copper door 12 is respectively disposed on the right and left sides of the protection door 11, and the fuse 7 further includes a sleeve. The sleeve is effective in preventing short circuits due to contact of the monomer or any coil or metal.

In order to make the socket conform to various specifications, the pin 8 includes a European pin, a US pin, an Australian pin and a British pin. The foot button 9 includes a European foot button, a US foot button, an Australian foot button and a British standard. Foot button. With a variety of pins, it is more convenient to travel to different places.

The travel socket of the present application is provided with a recovery fuse. When the overload is automatically disconnected, the automatic recovery is performed after a certain time, and the protection element with the double protection function of overcurrent and temperature sensing has small volume, long service life and high reliability, and it can Precise control of protection against over-current damage to the product, while protecting the electrical appliance, no need to replace the insurance, more convenient in travel; temperature sheet and heating wire combination has a fast jump, with the dual performance of induced current and temperature This application has a very accurate trip time to prevent the product from being overheated and the current being too large to cause damage to the product.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Any minor modifications, equivalent substitutions and improvements made to the above embodiments in accordance with the technical spirit of the present invention should be included in The technical solution of the utility model is within the protection scope.

Claims (5)

A travel socket with self-recovery insurance, comprising: a front shell, a rear shell, and a PCB board, wherein the PCB board is disposed between the front shell and the rear shell, a socket hole is disposed on the front casing, a socket bracket is disposed under the socket hole, a spring piece is disposed in the socket bracket, the spring piece is electrically connected to the PCB board, and a plurality of USB jacks are disposed on a side of the front shell ; A plurality of pins are disposed between the front shell and the rear shell, the tail end of the pin is electrically connected to the elastic piece, the pin is correspondingly provided with a foot button, and the inner side of the front case is further provided with a fuse, and the fuse is respectively The USB jack and the shrapnel are electrically connected, and the fuse comprises a heating wire, a temperature piece, a moving contact, a static contact and a casing, wherein the casing is provided with a heating wire and a temperature piece, and the temperature piece and the moving contact are static. The contacts are electrically connected. The travel socket with self-recovery insurance according to claim 1, wherein a protective door is disposed between the socket hole and the elastic piece, and a copper clip is respectively disposed on the left and right sides of the protection door. The travel socket with self-recovery insurance according to claim 1, wherein the rear casing is provided with a rear casing bracket, and the rear casing bracket is provided with a long iron column and a short iron column, and the pin arrangement is On long iron columns and short iron columns. A travel receptacle with self-healing insurance according to claim 1 wherein said fuse further comprises a sleeve. The travel socket with self-recovery insurance according to claim 1, wherein the pin includes a European pin, a US pin, an Australian pin and a British pin, and the foot button includes a European foot button and a US standard. Foot button, Australian foot button and British foot button.

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