Abstract:
A power supply device includes a power input module and a power functional module. The power input module has a power connecting unit and a power converting unit, which has a first connecting part. The power functional module comprises a functional unit or a plurality of functional units which connect with each other. The power input module is detachably coupled with the power functional modules of different assembling types, so that the power supply device can be transformed into various application modes. Accordingly, the power supply device can satisfy multiple applications and uses.

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
       [0001]    This Non-provisional application claims priority under 35 U.S.C. §119(a) on Patent Application No(s). 100137790 filed in Taiwan, Republic of China on Oct. 18, 2011, the entire contents of which are hereby incorporated by reference. 
       BACKGROUND OF THE INVENTION 
       [0002]    1. Field of Invention 
         [0003]    The present disclosure relates to a power supply device and, in particular, to a power supply device with a multi-functional structure. 
         [0004]    2. Related Art 
         [0005]    According to the rapid development and progress of electronic technology, many consuming electronic products, which are user-friendly, have been provided to make our lives more convenient. 
         [0006]    Therefore, a user may own many kinds of electronic products, such as cell phone, laptop, MP3 player, and the likes, at the same time. Most electronic products have corresponding specific power supply devices (adaptors). The more electronic products one user owns, the more power supply devices he/she certainly needs. Thus, the user also needs a larger space for storing and sorting the power supply devices. 
         [0007]    Therefore, it is an important subject to provide a power supply device that can be applied to various electronic products so that the user can operate them conveniently and the storage space can be minimized. 
       SUMMARY OF THE INVENTION 
       [0008]    The present disclosure is to provide a power supply device that can perform multiple functions, and can be applied to various kinds of power sources and electronic products and convenient in operation and storage. 
         [0009]    A power supply device comprises a power input module and a power functional module. The power input module has a power connecting unit and a power converting unit. A first connecting part is configured at one side of the power converting unit, and the power connecting unit is detachably coupled with the power converting unit. The power functional module comprises at least a functional unit, which has a second connecting part for electrically connecting with the first connecting part. The functional unit is detachably coupled with the power converting unit. 
         [0010]    In one embodiment, the power connecting unit is a two-pin plug, a three-pin plug, or a car charger adapter. 
         [0011]    In one embodiment, the power connecting unit has a receiving part, the power converting unit has a locking part, and the power connecting unit and the power converting unit are coupled as the receiving part is connected to the locking part. 
         [0012]    In one embodiment, the first connecting part has a plurality of contact elements, the second connecting part has a plurality of contact parts corresponding to the contact elements, and the contact elements contact against the corresponding contact parts. 
         [0013]    In one embodiment, the power converting unit has a locking slot, the function unit has a locking rail, and the locking slot is coupled with the locking rail. 
         [0014]    In one embodiment, the power converting unit is an AC/DC power converting element or a DC/DC power converting element. 
         [0015]    In one embodiment, the functional unit of the power functional module comprises one or any combinations of a DC voltage output element, a rechargeable battery, an USB connector, a light-emitting element, a stun rod and a DC fan. 
         [0016]    In one embodiment, when the functional unit is a rechargeable battery, the functional unit further has a third connecting part. 
         [0017]    In one embodiment, the third connecting part comprises a plurality of contact elements, which are metal slices. 
         [0018]    As mentioned above, the functional unit and power connecting unit of the power supply device of this disclosure are detachably coupled with the power converting unit, so that it is possible to select one of different aspects of power connecting units in accordance with a specific socket. In addition, the power supply device of the disclosure can be applied to various kinds of electronic products or perform multiple functions (e.g. charging, illuminating, or power supplying) by changing the functional unit. Compared with the conventional art, the power supply device of the disclosure can correspond to various kinds of input power sources, electronic products and functions, so that it is convenient for the user to operate and store the power supply device. 
         [0019]    These and other features, aspects and advantages of the present invention will become better understood with regard to the following description, appended claims, and accompanying drawings. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0020]      FIG. 1  is a schematic diagram showing a power supply device of an embodiment; 
           [0021]      FIGS. 2A and 2B  are schematic diagrams showing the separated parts of the power supply device of  FIG. 1 ; 
           [0022]      FIGS. 3A to 3C  are schematic diagrams showing several aspects of the power connecting unit; 
           [0023]      FIGS. 4A to 4C  are schematic diagrams showing several aspects of the functional unit; and 
           [0024]      FIG. 5  is a schematic diagram showing a power supply device of another aspect. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0025]      FIG. 1  is a schematic diagram showing a power supply device  1  according to an embodiment of the present disclosure. The power supply device  1  comprises a power input module  2  and a power functional module  3 . The appearance of the power supply device  1  is rectangular for example. Of course, the appearance of the power supply device  1  of this disclosure is not limited to this, and it may be any shape that is easily held and operated, such as cylinder, square or the likes. 
         [0026]    The power supply device  1  will be further illustrated with reference to  FIGS. 2A and 2B .  FIGS. 2A and 2B  are schematic diagrams showing the separated parts of the power supply device  1  of  FIG. 1 . The power input module  2  has a power connecting unit  21  and a power converting unit  22 . The power connecting unit  21  is detachably coupled with the power converting unit  22 . 
         [0027]    In one embodiment, the power connecting unit  21  has a receiving part  211 , and the power converting unit  22  has a locking part  221 . When the receiving part  211  and the locking part  221  are connected, the power connecting unit  21  can be coupled with the power converting unit  22 . In this case, for example, the receiving part  211  is a recess, while the locking part  221  is a protruding hook. Alternatively, in other embodiments, the power connecting unit is configured with a locking part, while the power converting unit is configured with a receiving part, which is coupled with the locking part. In order to enhance the coupling effect, the power connecting unit  21  and the power converting unit  22  may be configured with a plurality of receiving parts  211  and a plurality of locking parts  221 , respectively. In this embodiment, the power connecting unit  21  has two receiving parts  211 , and the power converting unit  22  has two locking parts  221 . The receiving parts  211  are configured corresponding to the locking parts  221 . 
         [0028]    To be noted, except for the function of connecting the power connecting unit  21  and the power converting unit  22 , the receiving parts  211  and the locking parts  221  may further be configured with corresponding conductive elements, respectively, which can connect to each other. When the power connecting unit  21  is inserted into a general socket, power can be transmitted to the power converting unit  22  through the receiving part(s)  211  and the locking part(s)  221 . However, in practice, it is unnecessary to use all of the receiving parts  211  and the locking parts  221  for transmitting power. In some cases, depending on the demands of products and designs, only at least one receiving part  211  and at least one locking part  221  are electrically connected for transmitting power, while the residual receiving parts  211  and locking parts  221  are configured for connection only. 
         [0029]    The power converting unit  22  has a first connecting part  222 . In addition, the power functional module  3  comprises one or more functional units  31 , which can connect to each other. The functional units  31  are detachably coupled with the power converting unit  22 . Each functional unit  31  has a second connecting part  311  for electrically connecting with the first connecting part  222 , so that the power converting unit  22  can be coupled with the functional unit  31 . To be noted, the first connecting parts  222  and the second connecting parts  311  are correspondingly disposed, so that they can be electrically connected to each other. Besides, the first connecting parts  222  and the second connecting parts  311  may further be configured with corresponding conductive elements, such as metals or other conductive materials. 
         [0030]    For example, the first connecting parts  222  and the second connecting parts  311  are configured with a plurality of contact elements and a plurality of contact parts, respectively. In this embodiment, the contact element is a metal slice, while the contact part is a metal conductive plate. The contact element can contact against the corresponding contact part by the inherent elastic force when the power converting unit  22  is coupled with the functional unit  31 , thereby firmly and electrically connecting the first connecting part  222  with the second connecting parts  311 . In this disclosure, the numbers and positions of the contact elements and the contact parts are not limited to this example. For example, the contact parts may be disposed on the first connecting part, while the contact elements are disposed on the second connecting part. 
         [0031]    In order to enhance the connection between the power converting unit  22  and the functional unit  31 , the power converting unit  22  may further have a locking slot  223 , and the functional unit  31  may further have a locking rail  312 , which can slide into and thus connect to the locking slot  223 . The locking slot  223  is disposed on the power converting unit  22 . In this embodiment, the locking slot  223  is U-shaped, and a recess is formed between the locking slot  223  and the power converting unit  22 , so that the cross-section of a part of the locking slot  223  is L-shaped. The locking rails  312  are disposed at two sides of the functional unit  31  and are respectively an L-shaped hook body corresponding to the appearance of the locking slot  223 . The locking rails  312  are arranged as the back-to-back L-shaped hook bodies at two sides of the functional unit  31 . The size and shape of the locking rail  312  are cooperated with that of the locking slot  223 . Thus, when the locking rail  312  slides and inserts into the locking slot  223 , the relative position between the power converting unit  22  and the functional unit  31  can be firmly fixed. In addition, the shapes and sizes of the locking slot  223  and the locking rail  312  of the present disclosure are not limited to this embodiment, and can be designed based on the actual needs. 
         [0032]      FIGS. 3A to 3C  are schematic diagrams showing several aspects of the power connecting unit. Referring to  FIG. 1  in view of  FIGS. 3A to 3C , the power connecting unit  21  can be a two-pin plug, a three-pin plug, or a car charger adapter. In this embodiment, the power connecting unit  21  is, for example but not limited to, a two-pin flat plug that can be folded and stored. In practice, the power connecting unit  21  may have various aspects depending on different demands. For example, three different structure aspects of the power connecting unit  21  will be described hereinafter with reference to  FIGS. 3A to 3C , respectively. 
         [0033]    Different aspects of the power connecting unit  21  can be selected and used for matching different sockets or the local frequencies and voltages. For example, the power connecting unit may be a two-pin flat plug (as the power connecting unit  21   a  of  FIG. 3A ), a 2 flat-pin+1 round-pin plug, a three-pin flat plug, a two-pin plug with non-parallel pins, two round-pin plug (as the power connecting unit  21   b  of FIG.  3 B), or a car charger adapter (as the power connecting unit  21   c  of  FIG. 3C ). 
         [0034]    Referring to  FIG. 2A  again, the power converting unit  22  may be a DC-to-DC power converting element or an AC-to-DC power converting element. In this embodiment, the power converting unit  22  is, for example, an AC-to-DC power converting element. After receiving the power source, the power converting unit  22  can convert it to the voltage fitting the power functional module  3 . For example, the power converting unit  22  can convert the 120V AC voltage into the 5V DC voltage, which is then transmitted from the power converting unit  22  to the functional unit  31  through the first connecting part  222  and the second connecting part  311 . 
         [0035]      FIGS. 4A to 4C  are schematic diagrams showing several aspects of the functional unit  31 . The functional unit  31  is, for example but not limited to, a DC voltage outputting element. The functional unit  31  may have various aspects depending on the applied electronic products. For example, the functional unit  31  can be a light-emitting element (as the functional unit  31   a  of  FIG. 4A ), a single-hole/multiple-hole USB connector (as the functional unit  31   b  of  FIG. 4B ), a stun rod, a DC fan, or a rechargeable battery (as the functional unit  31   c  of  FIG. 4C ). As mentioned above, the light-emitting element may include an LED, a CCFL, or a lamp. 
         [0036]    To be noted, as shown in  FIG. 4C , when the functional unit  31   c  is a rechargeable battery, a second connecting part  311  is disposed at one side of the functional unit  31   c , and a third connecting part  313  is disposed at the other side of the functional unit  31   c.    
         [0037]    In this embodiment, the second connecting part  311  comprises a plurality of contact parts disposed in a row, and the third connecting part  313  comprises a plurality of contact elements respectively corresponding to the contact parts. Accordingly, the functional unit  31   c  used as a rechargeable battery can electrically connected to the second connecting part  311  of another functional unit  31  through its third connecting part  313  for providing power to another functional unit  31 . The numbers and positions of the contact elements and contact parts of the present disclosure are not limited to this embodiment. The contact elements can contact against the corresponding contact parts by their elastic forces as the functional unit  31   c  is connected with other functional unit or power converting unit, thereby providing firmly electrical connection. In some embodiments, if the second connecting part has a plurality of contact elements, the third connecting part may have a plurality of contact parts corresponding to the contact elements. In addition, the power converting unit can transmit power source to the functional unit  31   c  (rechargeable battery) for charging the functional unit  31   c.    
         [0038]      FIG. 5  is a schematic diagram showing a power supply device  1   a  of another aspect. Compared with the power supply device  1 , the power functional module  3   a  of the power supply device  1   a  has two functional units  31   b  and  31   c  coupling to each other. The functional unit  31   c  coupled to the power converting unit  22  is a rechargeable battery, and the other functional unit can be a rechargeable battery, a DC voltage output element, a light-emitting element, a stun rod, a DC fan, or a single-hole/multiple-hole USB connector. To be noted, the other functional unit  31   b  of this embodiment is, for example but not limited to, a multiple-hole USB connector. 
         [0039]    In summary, the functional unit and power connecting unit of the power supply device of this disclosure are detachably coupled with the power converting unit, so that it is possible to select one of different aspects of power connecting units in accordance with a specific socket. In addition, the power supply device of the disclosure can be applied to various kinds of electronic products or perform multiple functions (e.g. charging, illuminating, or power supplying) by changing the functional units. Compared with the conventional art, the power supply device of the disclosure can correspond to various kinds of input power sources, electronic products and functions, so that the user can select and connect different types of power connecting units and functional units for operation according to the actual demand. Thus, it is convenient for the user to operate and store the power supply device, and the number of the power supply devices can be reduced. 
         [0040]    Although the invention has been described with reference to specific embodiments, this description is not meant to be construed in a limiting sense. Various modifications of the disclosed embodiments, as well as alternative embodiments, will be apparent to persons skilled in the art. It is, therefore, contemplated that the appended claims will cover all modifications that fall within the true scope of the invention.