Patent Grant
10297965
The present disclosure is related to a power supply device and a power transformer with a replaceable plug head. In particular, the present disclosure relates to a power supply device used to transform a voltage of an electric supply into another voltage, and the power supply device has a power transformer and a replaceable plug head.
Due to the population of portable electronic devices, such as mobile phone, tablet computer, notebook . . . etc., power supply devices with voltage transformation function are required more and more. The conventional power supply device usually is able to mate with one unchangeable plug. However, different nations or countries have different safety standards of electrical devices, so that the sockets are different. For example, China CCC standard, America UL standard, United Kingdom UK standard . . . etc. The plugs and sockets, which meet the various standards in those countries, are not able to be applied in another different standard certification.
The conventional stationary power plug is obviously unable to be adapted for the various nation standard certifications, so that the electronic devices are not internationalized. Some power supply devices add another adapting plug on the stationary power plug to be adapted for different power sockets. However, it not only increases the total volume, but also increases the manufacturing cost.
One of the objectives of the present disclosure is to provide a power supply device, which has a power transformer and a rechargeable plug head, the plug head is detachably plugged to the power transformer, so as be in compliance with different safety standards of electrical devices, and connectable to various plug heads for mating with different sockets.
In order to achieve the above objectives, according to one exemplary embodiment of the present disclosure, a power supply device is provided and includes a power transformer and a plug head. The power transformer has a housing, a conducting socket, an outputting connector, and a power conversion circuit. The housing has a wedging wall and a receptacle wall. The receptacle wall is substantially perpendicular to the wedging wall to corporately form a concave-shaped receiving portion. The wedging wall is protruded with a wedging seat. The receptacle wall is formed with a connection opening. The conducting socket is disposed in the connection opening. The power conversion circuit is disposed in the housing, and electrically connected to the conducting socket and the outputting connector, so as to output a conversed electrical power to the outputting connector. In addition, the plug head is replaceably disposed in the receiving portion. The plug head has an outer cover and an inner cover. The outer cover has a prong unit to connect an electrical power. The inner cover has one side configured with a wedging slot, and another side equipped with a plug connector. The prong unit electrically connects to the plug connector. The wedging seat of the power transformer is wedged in the wedging slot. The plug connector is plugged in the conducting socket of the power transformer.
In order to achieve the above objectives, the present disclosure also provides a power transformer with a replaceable plug head. The power transformer includes a housing, a conducting socket, an outputting connector, and a power conversion circuit. The housing has a wedging wall and a receptacle wall. The receptacle wall is substantially perpendicular to the wedging wall to corporately form a concave-shaped receiving portion. The wedging wall is protruded with a wedging seat. The receptacle wall is formed with a connection opening. The conducting socket is disposed in the connection opening. The power conversion circuit is disposed in the housing, and electrically connected to the conducting socket and the outputting connector, so as to output a conversed electrical power to the outputting connector. The plug head is replaceable disposed in the receiving portion.
Thus, the present disclosure has advantages as follows. The plug head of the present disclosure is replaceably jointed to the power transformer, so that the present disclosure can be mated with different plug heads for being compliance with various safety standards for electrical products. Thus, the electrical product of the present disclosure can be internationalized and the manufacturing cost can be reduced.
For further understanding of the present disclosure, reference is made to the following detailed description illustrating the embodiments and examples of the present disclosure. The description is for illustrative purpose only and is not intended to limit the scope of the claim.
The aforementioned illustrations and following detailed descriptions are exemplary for the purpose of further explaining the scope of the present disclosure. Other objectives and advantages related to the present disclosure will be illustrated in the subsequent descriptions and appended drawings.
Reference is made to
The power transformer 1 has a housing 11, a conducting socket 12, an outputting connector 14, and a power conversion circuit 16. A corner of the housing 11 has a wedging wall 111 and a receptacle wall 112. The receptacle wall 112 is substantially perpendicular to the wedging wall 111, and cooperatively form a concave-shaped receiving portion 110. The wedging wall 111 is protruded with a wedging seat 13. The receptacle wall 112 is formed with a connection opening 1120. The conducting socket 12 is disposed in the connection opening 1120. The power conversion circuit 16 is disposed in the housing 11, and electrically connected to the conducting socket 12 and the outputting connector 14, so as to transmit a conversed electrical power to the outputting connector 14.
In this embodiment, the plug head 2 is replaceably disposed in the receiving portion 110 of the power transformer 1. The plug head 2 has a mating housing 21. The mating housing 21 has an outer cover 21a and an inner cover 21b. The outer cover 21a has a prong unit 24 to connect a power source. The prong unit 24 of the plug head 2 has at least two prongs. This embodiment can be in compliance with different sockets of countries. For example, it can be replaced with the plug head 2′ having a different prong unit 24′, as shown in
The inner cover 21b of the plug head 2 has one side formed with a wedging slot 23, and another side equipped with a plug connector 22. The prong unit 24 is electrically connected to the plug connector 22. When the plug head 2 is plugged to the power transformer 1, the wedging seat 13 of the power transformer 1 is wedged in the wedging slot 23 of the plug head 2. The plug connector 22 of the plug head 2 is plugged in the conducting socket 12 of the power transformer 1.
In this embodiment, the joining structure between the plug head 2 and the power transformer 1 is illustrated as follows. The wedging seat 13 is substantially T-shaped from a front view thereof. The wedging seat 13 has a protrusion base 131 and a wing portion 132. The protrusion base 131 is protruded from the wedging wall 111 and extends to the receptacle wall 112. The wing portion 132 is connected to a top of the protrusion base 131. A width of the wing portion 132 is larger than a width of the protrusion base 131.
The wedging slot 23 has an outer slot 231 and an inner slot 232. The outer slot 231 is formed concavely on one side of the inner cover 21b. The inner slot 232 is formed inwardly from the outer slot 231. The protrusion base 131 is inserted in the outer slot 231, and the wing portion 132 is inserted in the inner slot 232.
Note, in this embodiment, the length of the wedging seat 13 is longer than the length of the plug connector 22 along the inserting direction, such as the dash-dot line shown in
The conducting socket 12 of this embodiment has a tongue sleeve 120 and a pair of conductive contacts 122. The pair of conductive contacts 122 is arranged at two outer sides of the tongue sleeve 120. The tongue sleeve 120 is shaped in a hollow tube. The plug connector 22 has a plugging tongue 220 and a pair of plugging contacts 222. The pair of plugging contacts 222 is arranged at two sides of the plugging tongue 220. When the plug connector 22 is plugged in the conducting socket 12, the plugging tongue 220 is inserted in the tongue sleeve 120. The pair of plugging contacts 222 are contacted with the pair of conductive contacts 122, respectively.
To sum up, the present disclosure has beneficial effects as follows. The power supply device of the present disclosure provides the plug head which is replaceably inserted in the power transformer, and is able to be complied with different safety standards of electrical devices, and connectable to various plug heads for mating with different sockets. Thus, the electrical product of the present disclosure can be internationalized and the manufacturing cost can be reduced.
The descriptions illustrated supra set forth simply the preferred embodiments of the present disclosure; however, the characteristics of the present disclosure are by no means restricted thereto. All changes, alterations, or modifications conveniently considered by those skilled in the art are deemed to be encompassed within the scope of the present disclosure delineated by the following claims.
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