WO2009076883A1

WO2009076883A1 - Shock-resistant electrical outlet

Info

Publication number: WO2009076883A1
Application number: PCT/CN2008/073395
Authority: WO
Inventors: Jianxin Huang
Original assignee: Shenzhen Lanwei Electronics Co., Ltd
Priority date: 2007-12-10
Filing date: 2008-12-09
Publication date: 2009-06-25
Also published as: CN201126899Y

Abstract

A shock-resistant electrical outlet includes a housing, a live wire jack, and a null line jack, and further includes a first switch set and a second switch set installed in the housing. The first switch set includes a normally open first switch (K1-1) and a normally open second switch (K1-2). The second switch set includes a normally open third switch (K2-1) and a normally open fourth switch (K2-2). The first switch and the third switch are in series with the live wire jack. The second switch and the fourth switch are in series with the null line jack. The outlet is not electrified when a metal sheet or the like is inserted into only one jack of the null line jack or the live wire jack, so as to avoid electrical shock accident.

Description

Instruction manual

Anti-electric shock socket

[1] The utility model relates to a structure of a power socket.

Background technique

[2] Traditional power converters, commonly known as mobile power strips or power outlets, are used to provide multiple sets of power outputs.

Traditional power outlets generally do not have anti-shock safety protection function. When the power outlet is in the power-on state, and there is a certain set of output terminals, and the unknown children insert the metal objects into the socket jacks, electric shocks often occur. . A few products have similar functions and are passive. That is, people must protect themselves from electric shock. It is often difficult for children to avoid such strong currents. The other type of product is to protect against electric shock. Function, the mechanical safety protection door is installed on the power socket, but because the protection door is easily damaged, and the metal rod with a small diameter is easy to insert when the protection door is not opened, the reliability is not high, and it is still possible Initiated an electric shock.

Summary of the invention

[3] The main purpose of the utility model is to provide a power socket that is safe, reliable and reduces accidental electric shock.

[4] In order to achieve the above object, the utility model provides a power socket capable of preventing an electric shock caused by touching a contact piece in a jack, comprising a casing and a power output jack; the power output jack is disposed in the a first wire switch jack and a zero wire jack; the fire wire jack and the neutral wire jack are provided with a contact for conducting electricity; further comprising a first switch group and a second switch group, installed in the The first switch group includes a first switch and a second switch that are normally open and interlocked with the inserted plug insert, and the second switch group includes a third switch that is normally open and inserted with a plug insert. The fourth switch; the first switch and the third switch are connected in series with the contacts of the live line jack, and the second switch and the fourth switch are connected in series with the contacts of the neutral line jack.

[5] The above power socket, the switch contact of the first switch group is associated with the live wire jack, and is linked with a plug insert inserted into the live wire jack; the switch contact of the second switch group is The neutral jack is associated with a plug insert that is inserted into the neutral jack. [6] In the above power socket, the first switch group and the second switch group are double-throw normally open button switches, and the switch contacts are respectively located at the bottom of the neutral line jack and the fire line jack.

[7] or the above power socket, further comprising a first slider and a first intermediate resetting member; in a state of no external force, the first slider is located in the firewire jack to block the contact of the FireWire jack An upper portion is coupled to the switch contacts of the first switch and the second switch; the first intermediate reset member is disposed between the housing and the first slider, or is disposed on the first switch group and the first switch Between the sliders. a second slider and a second intermediate return spring; the second slider is located in the zero line jack and is shielded from the upper portion of the neutral jack of the neutral line, and the third The switch, the switch contact of the fourth switch is engaged; the second intermediate reset member is disposed between the housing and the second slider, or between the second switch group and the second slider.

[8] or the power socket of the above, further comprising: a first slider and a first left reset member, a first right reset member; and the non-external force state, the first slider is located in the firewire jack to block the An upper portion of the firewire jack contact is engaged with the switch contacts of the first switch and the second switch; the first left reset member is disposed between the housing and the left shoulder of the first slider, or is disposed at Between the first switch and the left shoulder of the first slider; the first right reset member is disposed between the housing and the right shoulder of the first slider, or between the second switch and the right shoulder of the first slider . The first intermediate resetting member is further disposed between the first slider and the first slider, or abuts between the first switch group and the first slider; A left reset member and the first right reset member.

[9] or the above power socket, further comprising a second slider and a second left reset member, a second right reset member; in the non-external force state, the second slider is located in the zero line jack to block The upper portion of the neutral jack is engaged with the switch contacts of the third switch and the fourth switch; the second left reset member is disposed between the housing and the left shoulder of the second slider, or And disposed between the third switch and the second shoulder of the second slider; the second right resetting member is disposed between the housing and the right shoulder of the second slider, or disposed on the right shoulder of the fourth switch and the second slider between. The second intermediate resetting member is further disposed between the housing and the second slider, or abuts between the second switch group and the second slider; the second intermediate resetting member is located at the Between the two left reset members and the second right reset member.

[10] The above power socket, wherein the first or second slider has a beveled structure for the side in contact with the plug blade.

[11] Due to the above scheme, the socket of the present invention has only a single jack of a neutral jack or a live jack. After being inserted into a metal sheet, the socket is not energized. It must be inserted into the zero-line jack and the live-wire jack of the socket. The socket is energized to avoid electric shock caused by one-handed contact with the jack electrode in the socket. In this way, even if a young child inserts metal sheets, strips, etc. into the socket jack for reasons such as curiosity and fun, it will not cause an electric shock accident; thus, the safety of the utility model is greatly improved.

[12] In the utility model, the design of the slider structure is used, the slope design of the slider structure and the top of the slider are provided with two springs, and the length of the slope determines whether the size of the insert can push the switch group to be connected, the double spring It can prevent the individual difference of the plug from causing the switch to be closed or the slider to be killed. It can avoid the electric shock caused by the small size of the metal object inserted into the socket or the thick metal single hole inserted into the socket, and the plug inserted into the socket must be inserted. The socket is energized close to the standard plug size, so that the safety of the utility model is further improved.

[13] The first switch group and the second switch group switch used in the utility model can directly select a commercially available finished switch

Suitable for mass production, stable performance and large carrying current.

[14] By applying the power socket of the utility model, the safety hazard existing in the prior art products can be eliminated, and the occurrence of such safety accidents will be greatly reduced.

DRAWINGS

[15] FIG. 1 is a circuit schematic diagram of an embodiment of the present invention;

Figure 2 is a partial perspective view of the first embodiment of the present invention;

Figure 3 is a partial cross-sectional view showing a first embodiment of the present invention;

[18] FIG. 4 is a schematic structural view of a first or second slider of the first embodiment of the present invention;

Figure 5 is a partial perspective view of a third embodiment of the present invention.

Embodiments of the invention

[20] The present invention will be further described in detail below by way of specific embodiments and with reference to the accompanying drawings.

[21] Embodiment 1

[22] Please refer to FIG. 1 , which is a circuit schematic diagram of the present example, the first switch Kl-1 and the second switch K1-2 of the first switch group are mounted on the lower side of the live wire jack of the socket, and the second switch group The third switch K2-1 and the fourth switch Κ2- 2 are mounted on the lower side of the neutral jack of the socket, and the first switch K1-1 of the first switch group and the third switch K2-l of the second switch group, The contacts of the live line jack are connected in series, and the second switch K1-2 of the first switch group is connected in series with the contacts of the fourth switch Κ2-2 of the second switch group and the neutral line jack. [23] The power socket of this example has a mechanical structure including a housing and a plurality of power output jacks disposed on the panel of the housing, and each of the power output jacks includes a Firewire jack and a Zerowire jack; Contact pads for conduction are provided in the fire wire jack and the neutral wire jack.

[24] The mechanical structure and working principle of this example, as shown in Fig. 2, Fig. 3, Fig. 4, the first slider 10, the second slider 20, and the return springs as the reset members are added to the housing: A left return spring 11, a first right return spring 12 and a first intermediate return spring 13, a second left return spring, a second right return spring and a second intermediate return spring.

[25] When the plug of the plug is inserted into the FireWire jack, the first slider 10 pushes the contacts of the first switch K1-1 and the second switch K1-2 of the first switch group to be closed by the same The third switch K2-l and the fourth switch Κ2-2 of the second switch group are not closed, and the neutral line jack and the fire line jack are not energized; similarly, when the plug insert is inserted into the neutral line jack, the second slider The third switch K2-1 and the second switch Κ2-2 of the second switch group are pushed to close the switch contacts, because the first switch Kl-1 and the second switch K1-2 of the first switch group are not closed. The neutral jack and the firewire jack of the socket are not powered. Only the two inserts of the plug are inserted into the neutral jack of the socket, the live jack 吋, the first switch Kl-1 of the first switch group, the second switch K1-2 and the third switch K2 of the second switch group -l, the fourth switch Κ 2-2 four switches are closed at the same time, the power socket can be powered. Correspondingly, a first left return spring 11 and a first right return spring 12 are disposed between the left and right shoulders of the first slider and the corresponding switch contacts; and the left and right shoulders of the second slider correspond to their corresponding switch contacts Providing a second left return spring and a second right return spring; when the plug on the power socket is pulled out, the first slider 10 and the second slide 20 are separated from the switch contacts by the respective return springs Press and reset to the original position to disconnect all four switches. As shown in Fig. 4, the first or second slider is designed with a bevel structure, and the length of the slope determines whether the size of the insert can push the switch group to be turned on; each slider uses a left and right return spring to prevent individual differences of the plug. It may cause the switch to not close or the slider to be killed. It can avoid the electric shock caused by the small size of the metal object inserted into the socket or the thick metal single hole inserted into the socket. Ensure that the plug inserted into the socket must be larger than the standard plug size. The power is closer to the 吋 socket; thus the safety of the present invention is further improved. In addition, in order to ensure the reliability of the reset, a first intermediate return spring 13 is added between the first slider 10 and the first switch group, and the first intermediate return spring 13 is located at the first left return spring 11 and the first right return spring 12 Similarly, a second intermediate return spring is added between the second slider 20 and the second switch group. [26] Therefore, in the socket of the embodiment of the present invention, only the single-wire plug or the live-wire jack is inserted into the socket, and the socket is not energized, and the plug must be inserted in the neutral jack of the socket and the live jack. The plug inserted into the socket must be the same size as the standard plug, and the socket is energized. Therefore, the socket of the embodiment of the present invention can avoid the electric shock caused by the metal object being inserted into the single hole of the socket.

[27] Example 2

[28] According to the circuit principle shown in Fig. 1, in the power socket of this example, a set of double-throw normally open button switches are respectively installed in the neutral jack or the live jack, and the contacts are respectively located at the neutral jacks. Or the bottom of the FireWire jack. For the same reason, according to the circuit principle shown in Fig. 1, only the neutral jack or the live jack is inserted into the plug by the plug, and the two sets of double throw normally open switch contacts are pressed, and the power socket can be energized.

[29] Embodiment 3

[30] Please refer to FIG. 5, the difference between this example and the first embodiment is that the intermediate switch springs of the first switch group and the second switch group are omitted in this example; the first switch group uses the first left The return spring and the first right return spring are reset, and the second switch group is reset by the second left return spring and the second right return spring.

[31] The above is a further detailed description of the present invention in conjunction with the specific preferred embodiments, and it is not intended that the specific embodiments of the invention are limited to the description. For those skilled in the art to which the present invention pertains, a number of simple derivations or substitutions may be made without departing from the spirit and scope of the present invention. For example, the mounting position of each return spring may be different from the above embodiment; each switch group may also use only one return spring for resetting.

Claims

Claim

[1] 1. A power socket capable of preventing an electric shock caused by touching a contact in a jack, comprising a casing and a power output jack; wherein the power output jack is disposed on the casing panel, including a live wire a jack, a neutral jack; the live jack and the neutral jack are provided with a contact for conducting electricity; and the method further includes: a first switch group and a second switch group installed in the housing; The first switch group includes a first switch and a second switch that are normally open and interlocked with the inserted plug insert, and the second switch group includes a third switch and a fourth switch that are normally open, inserted, and inserted by the plug. The first switch and the third switch are connected in series with the contacts of the live line jack, and the second switch and the fourth switch are connected in series with the contacts of the neutral line jack.

[2] 2. The power socket according to claim 1, wherein: the switch contact of the first switch group is associated with the live wire jack, and is linked to a plug insert inserted into the fire wire jack; The switch contact of the second switch group is associated with the neutral jack and is associated with a plug insert inserted into the neutral jack.

[3] The power socket of claim 1 or 2, wherein: the first switch group and the second switch group are double-throw normally open button switches, and the switch contacts are respectively located at the neutral line. Jack, the bottom of the FireWire jack.

[4] 4. The power socket according to claim 2, further comprising: a first slider and a first intermediate reset member; wherein the first slider is located in the firewire jack in an external force state a first intermediate reset member is disposed between the housing and the first slider, and is disposed at an upper portion of the live wire jack contact; Or disposed between the first switch group and the first slider.

[5] The power socket of claim 2, further comprising: a second slider and a second intermediate return spring; wherein the second slider is located in the neutral jack when not subjected to an external force Blocking the upper part of the neutral line jack contact with the switch contacts of the third switch and the fourth switch; the second intermediate resetting member is disposed on the housing and the second slider Between, or between the second switch group and the second slider.

[6] 6. The power socket according to claim 2, further comprising: a first slider and a first left reset member, a first right reset member; and the first slider in an external force-free state Located in the fire line jack Disposed on the upper part of the live wire jack contact with the switch contacts of the first switch and the second switch; the first left reset member is disposed between the housing and the left shoulder of the first slider Or disposed between the first switch and the left shoulder of the first slider; the first right reset member is disposed between the housing and the right shoulder of the first slider, or is disposed on the second switch and the first slider Between the right shoulders.

[7] 7. The power socket according to claim 2, further comprising: a second slider and a second left reset member, a second right reset member; and the second slider in an external force-free state Positioned in an upper portion of the neutral jack of the neutral jack, engaging with a switch contact of the third switch and the fourth switch; the second left reset member is disposed in the housing Between the third shoulder of the second slider and the left shoulder of the second slider; the second right resetting member is disposed between the housing and the right shoulder of the second slider, or The fourth switch is between the right shoulder of the second slider.

[8] 8. The power socket of claim 6, further comprising: a first intermediate reset member abutting between the housing and the first slider, or abutting the first switch group Between the first slider and the first slider; the first intermediate reset member is located between the first left reset member and the first right reset member.

[9] 9. The power socket of claim 7, further comprising: a second intermediate reset member abutting between the housing and the second slider, or abutting the second switch group Between the second slider and the second slider; the second intermediate reset member is located between the second left reset member and the second right reset member.

[10] 10. The power socket according to any one of claims 4-9, wherein: the side of the first or second slider for contacting the plug blade has a beveled structure.