Abstract:
A power socket having a reed to activate an alarm is constituted by a lower casing, an upper casing, and a conduction terminal which is inserted between the lower casing and the upper casing. The conduction terminal is provided with a dual-metal complex reed, and an interior of the lower casing is provided with a conduction piece for energizing an alarm device. Accordingly, when the conduction terminal reaches a certain high temperature, the dual-metal complex reed is buckled and deformed in accordance with its metallic properties, and is connected with the conduction piece, so as to activate the alarm device to give off sound or illuminate, thereby achieving a function of safety protection by alerting a user to pay attention to.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    (a) Field of the Invention 
         [0002]    The present invention relates to a power socket having a reed to activate an alarm, and more particularly to a power socket which is provided with a dual-metal complex reed on a conduction terminal, such that an alarm device will be activated to illuminate or give off sound if the dual-metal complex reed is buckled and deformed when it achieves a certain high temperature, so as to alert a user promptly to prevent a tragedy from occurring. 
         [0003]    (b) Description of the Prior Art 
         [0004]    From time to time it is heard that people get killed in a fire. From a research of scholars and experts, it is determined that reasons of causing severe casualties of people include an improper use of indoor decoration and maintenance materials, a wire sparking, and an imperfect planning of a fire zone. In order to prevent a tragedy of casualties of fire from occurring again and again, it is imperative that a government should more actively develop related rules and regulations, such that a home safety can be more greatly protected. 
         [0005]    As a matter of fact, from all kinds of scenes of fire, it is known that in addition to a human factor, the most essential reason should be the wire sparking. As a lifetime of usage of an ordinary building can be as long as several decades, when the wires are embedded in the building for a long time, they will be aging due to an external factor or power use. Under this condition, once there is an abrupt power surge, it is very easy to result in the wire sparking to start the fire. 
       SUMMARY OF THE INVENTION 
       [0006]    The primary object of present invention is to provide a power socket having a reed to activate an alarm, wherein a conduction terminal of the socket is installed with a dual-metal complex reed which is buckled and deformed from a high temperature, to activate an alarm device, thereby overcoming a shortcoming of an electric circuit alarm by this mechanical operation. 
         [0007]    Another object of the present invention is to provide a power socket having a reed to activate an alarm, wherein surfaces of the dual-metal complex reed and the conduction terminal are locally connected and locally disconnected, such that a contact area of the dual-metal complex reed with the conduction terminal can be increased in response to a temperature rise of the conduction terminal, thereby actually transmitting the precise temperature of conduction terminal. 
         [0008]    Still another object of the present invention is to provide a power socket having a reed to activate an alarm, wherein an interior of a lower casing of the socket is provided with a conduction piece which can energize an alarm device; and on a surface of the conduction terminal, at a location close to the conduction terminal, is provided with a through-hole, such that the dual-metal complex reed can be connected to another surface of the conduction terminal by one end, and the other end of reed can be extended out of the through-hole along an edge of inner surface of the conduction terminal to form a bended angle, so as to form a normal close or a normal open state with the conduction piece. 
         [0009]    Yet another object of the present invention is to provide a power socket having a reed to activate an alarm, wherein an alarm device can be installed inside or outside the socket to illuminate or give off sound for alarming. 
         [0010]    To enable a further understanding of the said objectives and the technological methods of the invention herein, the brief description of the drawings below is followed by the detailed description of the preferred embodiments. 
     
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0011]      FIG. 1  shows a perspective view of the present invention. 
           [0012]      FIG. 2  shows a local exploded view of the present invention. 
           [0013]      FIG. 3A  shows a cutaway view of a conduction terminal and a dual-metal complex reed of the present invention. 
           [0014]      FIG. 3B  shows a cutaway view of an entire assembly of the present invention. 
           [0015]      FIG. 4A  shows a schematic view of a dual-metal complex reed of the present invention before deformation. 
           [0016]      FIG. 4B  shows a schematic view of a dual-metal complex reed of the present invention after deformation. 
           [0017]      FIG. 5  shows a schematic view of the present invention in a usage. 
           [0018]      FIG. 6  shows a schematic view of a second embodient of the present invention. 
           [0019]      FIG. 7A  shows a schematic view of a third embodient of the present invention. 
           [0020]      FIG. 7B  shows a schematic view of a fourth embodient of the present invention. 
           [0021]      FIG. 8A  shows a schematic view of a second embodient of a dual-metal complex reed and a conduction terminal of the present invention. 
           [0022]      FIG. 8B  shows a schematic view of a third embodient of a dual-metal complex reed and a conduction terminal of the present invention. 
           [0023]      FIG. 9  shows a schematic view of another implementation state of the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
       [0024]    Referring to  FIGS. 1 ,  2 ,  3 A,  3 B, a power socket  1 , an end of which is connected to an alarm device  2  (as shown in  FIG. 3B ), includes a lower casing  3 , an upper casing  4 , a first conduction terminal  5 , a second conduction terminal  6 , and a dual-metal complex reed  7 , wherein an interior of the lower casing  3  is divided into a first chamber  32  and a second chamber  33  with a baffle  31 , for placing the first conduction terminal  5  and the second conduction terminal  6 , respectively; and the first conduction terminal  5  and the second conduction terminal  6  are provided with metallic auxiliary terminals  50 ,  60  respectively. As the aforementioned first conduction terminal  5  has a same shape as that of the second conduction terminal  6 , features of the present invention are described using the first conduction terminal  5  as an example. 
         [0025]    As shown in the drawings, the first conduction terminal  5  is made by a copper piece which is bended into a shape of terminal, and the terminal is provided with two vertical plates  51 ,  52  which are separated with each other by a proper distance. A bottom plate  53  is connected between the vertical plates  51 ,  52 , two sides of the vertical plate  51  are provided with fixing pins  511 ,  512  which are extended downward, and the vertical plate  51  is provided with a round hole  513 . Two sides of the vertical plate  52  are connected to an outer plate  54  which is bended by multiple angles, and two sides of which are formed outward into a projected station to allow the first conduction terminal  5  to be crossed over a projection body  321  of the first chamber  32  for fixing, when the first conduction terminal  5  is placed into the first chamber  32  of lower casing  3 . In addition, a main body of the first conduction terminal  5  is again provided with a through-hole  55  which is located at a lower end of the vertical plate  52 . 
         [0026]    As shown in the drawings, the dual-metal complex reed  7  is in a shape of a long strip which is divided into an affixing section  71 , a deformation section  72 , and a triggering end  73 . The affixing section  71  is attached on a surface below the round hole  513  of vertical plate  51 , and on a part of the bottom plate  53 , the deformation section  72  is bended upward by an angle, and is kept at a distance from the bottom plate  53  of first conduction terminal  5  such that it can be attached on the bottom plate  53  after deformation. A front end of the deformation section  72  transfixes into the aforementioned through-hole  55  of vertical plate  52 , and a part of the deformation section  72  after passing through the through-hole  55  is bended and deflected by a larger angle, which forms the triggering end  73  with an angle of elevation at a tail end. 
         [0027]    On the other hand, another conduction piece  34  is located on an inner wall of the first chamber  32 , at a position opposed to the triggering end  73  of dual-metal complex reed  7 . A bottom end of the conduction piece  34  is connected to a lead wire  35  which transfixes a bottom hole  35  of the lower casing  3  and is then connected to the alarm device  2 , such that when the trigger end  73  of dual-metal complex reed  7  touches the conduction piece  34 , the alarm device  2  can be activated to give off sound or illuminate. 
         [0028]    When using a power socket having a reed to active an alarm of the present invention, if the conduction terminal  5  has not been over-heated or its temperature has not been too high, the triggering end  73  of the dual-metal complex reed  7  will keep at a proper distance from the conduction piece  34  without touching (as shown in  FIG. 4A ). Whereas when the conduction terminal  5  is gradually heated, and the dual-metal complex reed  7  exceeds an upper limit of deformation of the deformation section  72  by an influence of the temperature of terminal, the deformation section  72  will start to deform due to its physical properties, and will be fully attached to the bottom plate  53  slowly, during the process of deformation, such that the entire temperature of conduction terminal  5  can be more accurately transmitted to the dual-metal complex reed  7 , thereby finally enabling the dual-metal complex reed  7  to be deformed to a greater extent, until that the triggering end  73  of dual-metal complex reed  7  touches the conduction piece  34  to activate the alarm device  2  to give off the sound or illuminate. 
         [0029]    Accordingly, referring to  FIG. 5 , in using a power socket having a reed to active an alarm of the present invention, when an electric load of an electric appliance which is used at one end of a plug  700  is excessively high to exceed an upper limit of a preset deformation of the dual-metal complex reed  7 , the dual-metal complex reed  7  is first locally in contact with the conduction terminal  5 , and then its contact area with the conduction terminal  5  is gradually increased due to a gradual heating of the conduction terminal  5 , such that the heating temperature of conduction terminal  5  can be accurately sensed, and the conduction terminal  5  can be in contact with the conduction piece  34  immediately, to activate the alarm device  2  to give off the sound or illuminate, once an upper limit of the preset temperature is exceeded. 
         [0030]    Referring to  FIG. 6 , a power socket having a reed to active an alarm of the present invention is used in a socket  81  of an extension cord. As the socket  81  of extension cord is usually provided with too many insertion holes, it is easy for a user to ignore a load current and is usually to result in an overloading condition, which is very easy to cause a danger. By a contact of the dual-metal complex reed  7  on the conduction terminal with the conduction piece  34 , the alarm device  2  can be activated promptly, to give off the sound or illuminate, thereby alerting the user to pay attention to. 
         [0031]    Referring to  FIG. 7A , a power socket having a reed to active an alarm of the present invention is provided with an alarm device  2  which is configured between two sockets  82 ,  83 , and can be applied to an existing dual socket installed on a wall, so as to achieve a purpose of alerting a user to pay attention to in time. 
         [0032]    Referring to  FIG. 7B , a power socket having a reed to active an alarm of the present invention is provided with an alarm device  2  which is configured at a bottom of an interior of a socket  84 , such that a space for installing the alarm device  2  can be decreased, thereby facilitating a more convenience in the installation and usage. 
         [0033]    Referring to  FIG. 8A , a dual-metal complex reed  7   a  can be also installed at an outermost side of conduction terminal  85 , with its affixing section  71   a  and local deformation section  72   a  being attached to an outside of the conduction terminal  85 . When the conduction terminal  85  is over-heated, the deformation section  7   a  is deformed to be attached on the outer surface of conduction terminal  85 , and a triggering end  73   a  is again in contact with a conduction piece  34   a . Therefore, when the conduction terminal  85  is over-heated, and the dual-metal complex reed  7   a  is deformed, the triggering end  73   a  will activate the alarm device to give off the sound or illuminate. 
         [0034]    Referring to  FIG. 8B , a dual-metal complex reed  7   b  can be also installed at a bottom surface of conduction terminal  86 , with its affixing section  71   b  and local deformation section  72   b  being attached on the bottom surface of conduction terminal  86 , enabling the dual-metal complex reed  7   b  and the conduction piece  34   b  to be at a normal close state. When the conduction terminal  86  is over-heated, the deformation section  72   b  is deformed to move upward and to be attached on the bottom surface of conduction terminal  86 , and a triggering end  73   b  will be released to touch the conduction piece  34   b , thereby activating the alarm device to give off the sound or illuminate. 
         [0035]    Referring to  FIG. 9 , after a power socket having a reed to active an alarm of the present invention is connected with wirings of other sockets  87 ,  88 , a plug  701  of an external electric appliance is not directly inserted into the power socket  1  of present invention. However, as the power socket  1  of present invention has been already connected with the wirings of other sockets  87 ,  88 , when temperature of entire wirings rises, the alarm device  2  can be also activated to give off the sound or illuminate, through the power socket  1  of present invention and by using the action of dual-metal complex reed. 
         [0036]    It is of course to be understood that the embodiments described herein is merely illustrative of the principles of the invention and that a wide variety of modifications thereto may be effected by persons skilled in the art without departing from the spirit and scope of the invention as set forth in the following claims.