Patent Application
20140273568
The present invention generally relates to an improvement on the connection structure between an illuminant and a power cord.
It is known that a lot of lamp strings of the same kind are available in the market. Most of these lamp strings use light-emitting diodes (LEDs) as illuminants. The connection between an LED and a power cord is generally done with piercing engagement, in which pins having knife-like sharp lower ends are fixed in a socket and is set in electrical connection with two terminals of the LED. The power cord is laid flat on a top of a bottom cap, whereby when the bottom cap is mounted to the socket, the knife-like lower ends of the pins located in the socket pierce through the power cord to contact conductive cores of the power cord thereby establishing electrical connection therebetween. However, electrical connection established with such piercing engagement may lead to undesired breaking and thus detachment of the power cord and consequently shorting of the lamp string may result. This is certainly not a perfect arrangement and further improvement is needed.
To overcome the drawback of the conventional way of connecting an illuminant received and retained in a socket of a lamp string with a power cord, the present invention replaces the connection engagement realized with knife-like sharp pins piercing through the power cord by secured direct contact engagement established between terminals of an LED and the conductive cores of a partially stripped power cord for the purposes of eliminating the potential risk of power cord breaking.
To achieve the above object, the present invention provides a connection seat of bulb socket of decorative lamp string, which comprises a main body comprising an upper portion and a bottom portion both having a hollow interior. The top portion comprises a centrally located the partition board on which an LED is seated with two terminals of the LED on opposite sides of the partition board. A cover is mounted to the top portion. The bottom portion comprises a centrally located partition board and two stop boards on two sides and having inside inclination surfaces. The terminals of the LED are arranged to extend into the bottom portion and positioned against the partition board of the bottom portion. The power cord comprises two partially stripped core conductors that are respectively received between the partition board and the stop boards of the bottom portion and are respectively set in engagement with the two terminals of the LED. A bottom cap comprises two raised bars and is mounted to the bottom portion in such a way that the two raised bars push the two core conductors in such a direction to have the core conductors and the terminals of the LED securely fixed between the partition board and the stop boards of the bottom portion. In this way, the power cord can be set in connection with the illuminant without applying the conventionally used piercing engagement, whereby the potential risk of breaking the power cord due to piercing can be eliminated.
The foregoing objectives and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts.
Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example.
The following descriptions are exemplary embodiments only, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. Various changes to the described embodiments may be made in the function and arrangement of the elements described without departing from the scope of the invention as set forth in the appended claims.
Referring to
It will be understood that each of the elements described above, or two or more together may also find a useful application in other types of methods differing from the type described above.
While certain novel features of this invention have been shown and described and are pointed out in the annexed claim, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing in any way from the spirit of the present invention.
