1. Field of the Invention
The present invention relates to a power connector, and more particularly to power connectors with switches for controlling connecting status thereof.
2. Description of Related Art
Power connectors are widely used in electronic industry for transmitting power to electronic devices. As the security is paid more attention in nowadays, a kind of power connector with a switch is designed for meeting such requirement of people. China Patent CN2525702Y discloses such a power connector with a switch. The power connector includes a housing, a switch and an output contact assembled to the housing. The housing defines a first cavity to receive the switch and a second cavity to receive a power plug. The power connector has a power contact protruding into the second cavity to transmit power. The switch includes a button and a connecting contact connecting with the output contact. The button has a pressing portion on outside of the first cavity and a lever protruding into the first cavity. The lever resists an outside of the connecting contact.
When the power plug is inserted into the second cavity to be used, pressing the button, then the lever rotates to push a lower side the connecting contact backwardly to contact with the power contact. When the power plug is not used, pressing the button again, then the lever rotates to push an upper side of the connecting contact backwardly to make the connecting contact disengage with the power contact. However, the lever only presses the outside of the connecting contact to push the connecting contact rotating and does not fix with the connecting contact, when the lever pushes connecting contact, the connecting contact easily offsets to disengage with the lever, then the switch would not control the power connector to connect or disconnect with the power plug effectively.
Hence, an improved power connector is desired to overcome the above problems.
According to the present invention, a power connector comprises: an insulative housing, a power contact and a switch retained to the insulative housing. The insulative housing has a front surface, a first cavity and a second cavity recessed from the front surface. The power contact has a mating portion protruding into the first cavity. The switch has a button received in the second cavity and a connecting contact engaging with the button. The button has a lever protruding inwardly from an inner side thereof. The lever defines a through hole, and the connecting contact extends through the through hole and moves in the through hole in a pressing process of the button to make the connecting contact electrically connect or disconnect with the power contact.
According to another aspect of the present invention, a power connector comprises: an insulative housing, a power contact and a switch retained to the insulative housing. The insulative housing has a front surface, a first cavity and a second cavity recessed from the front surface. The power contact has a mating portion protruding into the first cavity. The switch has a button received in the second cavity and a connecting contact retained on the button. The connecting contact is driven to connect or disconnect with the power contact when the button is pressed.
The foregoing has outlined rather broadly the features and technical advantages of the present invention in order that the detailed description of the invention that follows may be better understood. Additional features and advantages of the invention will be described hereinafter which form the subject of the claims of the invention.
For a more complete understanding of the present invention, and the advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, in which:
In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention. However, it will be obvious to those skilled in the art that the present invention may be practiced without such specific details. In other instances, well-known circuits have been shown in block diagram form in order not to obscure the present invention in unnecessary detail. For the most part, details concerning timing considerations and the like have been omitted inasmuch as such details are not necessary to obtain a complete understanding of the present invention and are within the skills of persons of ordinary skill in the relevant art.
Referring to
Referring to
The insulative housing 1 is formed with a first limiting wall 121 at an upper side of the second cavity 111 and a second limiting wall 162 at a lower side of the second cavity 111. The first limiting wall 121 and the second limiting wall 162 align to each other along the up to down direction. The insulative housing 1 defines a pair of second axle holes 132 at two side walls 13. The slots 132 communicate with the second cavity 111 along a transverse direction perpendicular to the up to down direction and the front to back direction. Each side wall 13 further defines a slot 1321 extending along the front to back direction and a first axle hole 1322 at a rear end of the slot 1321. The slot 1321 and the first axle hole 1322 communicate with the second cavity 111 along the transverse direction. The second axle holes 132 are located at a front side of the slots 1321 and communicate with the slots 1321. The insulative housing 1 further defines a first retaining slot 131 recessed from the rear surface thereof and located below the first cavity 110, a second retaining slot 133 at an upper side of the first retaining slot 131, and a fixing slot 123 recessed from the rear surface 12 thereof and communicating with the second cavity 111 along the front to back direction. The second retaining slot 133 is located below the first cavity 110 and communicates with the first cavity 110 and the first retaining slot 131 along the up to down direction.
Referring to
The button 6 has a pressing portion 61 and a lever 62 backwardly extending from an inner side of the pressing portion 61. The pressing portion 61 is located at a front position of the second cavity 111 and protrudes out of the front surface 11. The pressing portion 61 is formed with a pair of second pivots 622 outwardly protruding from two sides thereof to engage with the second axle holes 132 of the insulative housing 1. The second pivots 622 can rotate in the second axle holes 132 when the pressing portion 61 is pressed. The lever 62 defines a through hole 621 extending therethrough along the up to down direction. The first arm 41 passes through the through hole 621 and can moves in the through hole 621. The stopping portion 411 is located at a lower side of the through hole 621 to prevent the first arm 41 from escaping from the through hole 621.
Referring to
Referring to
Referring to
When the power plug is not in using, pressing a lower side of the button 6 backwardly to make the lower side resist the second limiting wall 162, the lever 62 rotates upwardly to resist an upper side of the first arm 41 backwardly, and the connecting contact 4 rotates around the first pivots 423 along an clockwise direction to make the first connecting portion 421 move forwardly to disengage with the second connecting portion 323, then the power contact 3 does not electrically connect with the output contact 5, and the power connector 100 can not transmit power to the circuit board.
As fully described above, the connecting contact 4 in the present invention is movably retained to the button 6, which can make the connecting contact 4 always engage with the button 6, and the connecting contact 4 can not offset to disengage with the button 6, then the power connector 100 in the present invention will have a long life and can effectively control the power connector 100 to connect or disconnect with the power plug.
Of course, the connecting contact 4 can be alternatively fixed to the button 6 and can not move relative to the button 6, then the connecting contact 4 can be driven to connect or disconnect with the power contact 3 by the button 6, which can achieve the above purpose of the present invention.
It is to be understood, however, that even though numerous, characteristics and advantages of the present invention have been set fourth in the foregoing description, together with details of the structure and function of the invention, the disclosed is illustrative only, and changes may be made in detail, especially in matters of number, shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
Number | Date | Country | Kind |
---|---|---|---|
201020269734.7 | Jul 2010 | CN | national |