The present invention relates to a plug adapter, and more particularly to a plug adapter having integrated terminals.
In order to improve the safety of electricity use, a safety plug adapter having a phase detection function is developed on the market. The safety plug adapter can detect the status of the live wire, the neutral wire and the earth wire to improve the safety of electricity use. In the prior art, such a plug adapter includes a housing, a female terminal assembly, a male terminal assembly, and a phase detection module. The top of the housing has a live slot, a neutral slot, and an earth slot. The bottom of the housing has a live perforation, a neutral perforation, and an earth perforation. The female terminal assembly includes three conductive sockets installed in the housing. The three conductive sockets are defined as a live conductive socket, a neutral conductive socket and an earth conductive socket. The live conductive socket, the neutral conductive socket and the earth conductive socket are aligned with the live slot, the neutral slot and the earth slot, respectively. The male terminal assembly includes three conductive pins. The three conductive pins are defined as a live conductive pin, a neutral conductive pin and an earth conductive pin. The live conductive pin, the neutral conductive pin and the earth conductive pin are aligned with the live perforation, the neutral perforation and the earth perforation, respectively.
The live conductive pin, the neutral conductive pin and the earth conductive pin are connected to the live conductive socket, the neutral conductive socket and the earth conductive socket through wires, respectively. The phase detection module is electrically connected to the female terminal assembly and the male terminal assembly.
The conventional safety plug adapter has the following problems:
The three conductive pins of the conventional safety plug adapter are connected to the three conductive sockets through wires, respectively. The wires are connected to the conductive pins and the conductive sockets by welding, which is more troublesome in assembly. In addition, if the welding is not good, it is easy to cause excessive contact resistance between the wires and the conductive pins as well as the conductive sockets. This will cause the welding area to heat up easily to burn the safety plug adapter because of overheating. In addition, the welding area of the wire is likely to loosen due to external vibration, which in turn causes the welding areas of the wires, the conductive pins and the conductive sockets to heat up. As a result, the safety plug adapter is easily overheated and burned.
The primary object of the present invention is to provide a plug adapter to overcome the shortcomings of the prior art.
In order to achieve the above object, the present invention adopts the following solutions.
A plug adapter comprises a housing, a conductive terminal assembly, and a phase detection module. A top of the housing has a live slot, a neutral slot, and an earth slot. A bottom of the housing has a live perforation, a neutral perforation, and an earth perforation. The conductive terminal assembly includes a live conductive member, a neutral conductive member, and an earth conductive member. Upper and lower portions of the live conductive member are integrally formed with a live conductive socket and a live conductive pin, respectively. Upper and lower portions of the neutral conductive member are integrally formed with a neutral conductive socket and a neutral conductive pin, respectively. Upper and lower portions of the earth conductive member are integrally formed with an earth conductive socket and an earth conductive pin, respectively. The live conductive socket, the neutral conductive socket and the earth conductive socket are disposed in the housing. The live conductive socket, the neutral conductive socket and the earth conductive socket are aligned with the live slot, the neutral slot and the earth slot, respectively. The live conductive pin, the neutral conductive pin and the earth conductive pin pass through the live perforation, the neutral perforation and the earth perforation, respectively. The phase detection module is installed in the housing. The phase detection module is electrically connected to the live conductive member, the neutral conductive member and the earth conductive member.
Preferably, the housing includes an upper housing and a lower housing connected to each other. The upper housing is formed with the live slot, the neutral slot and the earth slot. The lower housing is formed with the live perforation, the neutral perforation and the earth perforation.
Preferably, the lower housing is locked to the upper housing by a fixing screw.
Preferably, the plug adapter further comprises an insulating mounting seat. The insulating mounting seat is installed in the housing. The insulating mounting seat has three mounting grooves. The live conductive member, the neutral conductive member and the earth conductive member are connected to the three mounting grooves of the insulating mounting seat, respectively.
Preferably, the insulating mounting seat is locked to the housing by a mounting screw.
Preferably, the phase detection module includes a phase detection unit and a phase indication unit that are separately arranged. The phase detection unit is electrically connected to the live conductive member, the neutral conductive member and the earth conductive member. The phase indication unit is electrically connected to the phase detection unit. The phase indication unit includes a live indicator, a neutral indicator and an earth indicator. The top of the housing has a live indicator hole, a neutral indicator hole and an earth indicator hole corresponding to the live indicator, the neutral indicator and the earth indicator, respectively.
Preferably, the live indicator, the neutral indicator and the earth indicator of the phase indication unit are inserted into the live indicator hole, the neutral indicator hole and the earth indicator hole of the housing, respectively.
Preferably, the phase indication unit is locked to the housing by a connecting screw.
Preferably, a fastener is provided in the housing for fastening the phase detection unit.
Preferably, the live conductive member, the neutral conductive member and the earth conductive member are integrally formed with a live male terminal, a neutral male terminal and an earth male terminal, respectively, for connecting the phase detection module. The live male terminal, the neutral male terminal and the earth male terminal are connected to the phase detection module through a detection wire. The detection wire is provided with three detection female terminals for connecting the live male terminal, the neutral male terminal and the earth male terminal, respectively.
With the above solutions, the present invention has the following features.
1. In the present invention, the upper and lower portions of the live conductive member are integrally formed with the live conductive socket and the live conductive pin, respectively; the upper and lower portions of the neutral conductive member are integrally formed with the neutral conductive socket and the neutral conductive pin, respectively; the upper and lower portions of the earth conductive member are integrally formed with the earth conductive socket and the earth conductive pin, respectively; that is, the live conductive socket and the live conductive pin of the live conductive member are integrally formed; the neutral conductive socket and the neutral conductive pin of the neutral conductive member are integrally formed; the earth conductive socket and the earth conductive pin of the earth conductive member are integrated formed. With such an arrangement, the live conductive socket and the live conductive pin of the present invention are finely connected to each other and there is no contact resistance between them; the neutral conductive socket and the neutral conductive pin are firmly connected to each other and there is no contact resistance between them; the earth conductive socket and the earth conductive pin are firmly connected to each other and there is no contact resistance between them. In this way, the present invention can effectively reduce the heating caused by loose connection and excessive contact resistance, thereby avoiding burning because of overheating.
2. In the present invention, the live conductive socket and the live conductive pin of the live conductive member are integrally formed; the neutral conductive socket and the neutral conductive pin of the neutral conductive member are integrally formed; the earth conductive socket and the earth conductive pin of the earth conductive member are integrated formed, such that the present invention can reduce the assembly process and improve the assembly efficiency compared with the prior art.
3. In the present invention, the live conductive member, the neutral conductive member and the earth conductive member are integrally formed with the live male terminal, the neutral male terminal and the earth male terminal, respectively, for connecting the phase detection unit of the phase detection module. The live male terminal, the neutral male terminal and the earth male terminal are connected to the phase detection unit of the phase detection module through a detection wire. The detection wire is provided with three detection female terminals for connecting the live male terminal, the neutral male terminal and the earth male terminal, respectively. The live conductive member, the neutral conductive member and the earth conductive member are connected to the detection wire by plugging, so that the connection between the live conductive member, the neutral conductive member and the earth conductive member and the detection wire is more convenient.
Embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawings.
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In the present invention, the upper and lower portions of the live conductive member 21 are integrally formed with the live conductive socket 211 and the live conductive pin 212, respectively; the upper and lower portions of the neutral conductive member 22 are integrally formed with the neutral conductive socket 221 and the neutral conductive pin 222, respectively; the upper and lower portions of the earth conductive member 23 are integrally formed with the earth conductive socket 231 and the earth conductive pin 232, respectively; that is, the live conductive socket 211 and the live conductive pin 212 of the live conductive member 21 are integrally formed; the neutral conductive socket 221 and the neutral conductive pin 222 of the neutral conductive member 22 are integrally formed; the earth conductive socket 231 and the earth conductive pin 232 of the earth conductive member 23 are integrated formed. With such an arrangement, the live conductive socket 211 and the live conductive pin 212 of the present invention are firmly connected to each other and there is no contact resistance between them; the neutral conductive socket 221 and the neutral conductive pin 222 are firmly connected to each other and there is no contact resistance between them; the earth conductive socket 231 and the earth conductive pin 232 are firmly connected to each other and there is no contact resistance between them. In this way, the present invention can effectively reduce the heating caused by loose connection and excessive contact resistance, thereby avoiding burning because of overheating. In addition, the live conductive socket 211 and the live conductive pin 212 of the live conductive member 21 are integrally formed; the neutral conductive socket 221 and the neutral conductive pin 222 of the neutral conductive member 22 are integrally formed; the earth conductive socket 231 and the earth conductive pin 232 of the earth conductive member 23 are integrated formed. Compared with the prior art, the present invention can reduce the assembly process and improve the assembly efficiency.
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Although particular embodiments of the present invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the present invention. Accordingly, the present invention is not to be limited except as by the appended claims
Number | Date | Country | Kind |
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202120951503.2 | May 2021 | CN | national |