Abstract:
A plugging structure applied to an electronic device for detachably electrically connecting to a main unit is disclosed. The electronic device comprises a housing. The plugging structure comprises a cover and a circuit board. The cover plate has two transfer ports, and two transmitting ports are listed in the cover. The circuit board is disposed between the cover and the housing, and the circuit board connects to these transmitting ports.

Description:
BACKGROUND OF THE DISCLOSURE 
       [0001]    1. Field of the Disclosure 
         [0002]    The present disclosure relates to a plugging device, it relates to a plugged structure with double transmitting interface. 
         [0003]    2. Description of the Related Art 
         [0004]    With the development of electronic products, the interfaces for transmitting, such as USB2.0, SATA 6 Gbps and IEEE 1394, are increasing in number. One electronic device usually has one transmitting portion. Because electronic devices are becoming progressively thinner, most electronic devices do not have surplus space for additional transmitting portions. 
         [0005]    Although the number of transmitting interfaces is increasing and new interfaces provide faster transmitting speeds, the original transmitting interface is still in demand. As shown in  FIG. 1 , the military electronic device  8 ′ has a single transmitting interface. A military electronic device must be waterproof dustproof, and protected from EMI, and the volume thereof is limited. The military electronic device is plugged with whole machine. Therefore, one goal of industry is to produce a military electronic device meeting the present transmitting requirements and retaining the original transmitting interface. 
       SUMMARY OF THE DISCLOSURE 
       [0006]    The problem, which the present invention solving, is providing a structure with two transmitting interface. 
         [0007]    For solving said problem, the present invention provides a plugging structure applied to an electronic device for detachably electrically connecting to a main unit is disclosed. The electronic device comprises a housing. The plugging structure comprises a cover and a circuit board. The cover plate has two transfer ports, and two transmitting ports are listed in the cover. The circuit board is disposed between the cover and the housing, and the circuit board connects to these transmitting ports. 
         [0008]    The present invention further provides an electronic device having a plugging structure as said above. 
         [0009]    According to said embodiment, the plugging structure of the present is invention has at least the advantage below: Because the cover has an original transmitting interface and an additional transmitting interface, the electronic device retains the plugging structure of the original signal transmitting interface and adds a new transmitting interface in the existing space. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0010]    The exemplary embodiment of the present disclosure will be understood more fully from the detailed description given below and from the accompanying drawings of the disclosure, which, however, should not be taken to limit the disclosure to the specific embodiment, but are for explanation and understanding only. 
           [0011]      FIG. 1  illustrates the plugging structure of the prior art. 
           [0012]      FIG. 2  illustrates the electronic device and the main body device of the present disclosure. 
           [0013]      FIG. 3  illustrates a three dimensional view of the electronic device the present disclosure. 
           [0014]      FIG. 4  illustrates a three dimensional view of the plugging structure of the present disclosure. 
           [0015]      FIG. 5  illustrates a three dimensional view with other perspective of the plugging structure of the present disclosure. 
           [0016]      FIG. 6  illustrates an exploded view of the plugging structure of the present disclosure. 
           [0017]      FIG. 7  illustrates an experiment diagram of the plugging structure of the present disclosure. 
           [0018]      FIG. 8  illustrates an experiment diagram of the plugging structure of the present disclosure. 
           [0019]      FIG. 9  illustrates an positive view of the plugging structure of the present disclosure. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
       [0020]    To facilitate understanding and to clarify; the object, characteristics, and advantages of the present disclosure, the following specific embodiments and figures illustrating the present disclosure are presented as a detailed description. 
         [0021]    As shown in  FIG. 1  and  FIG. 2 , the present invention provides a plugging structure  1  applied to an electronic device  8 . The plugging structure  1  detachably electronically connects to a main body device  9 , and the electronic device  8  and the main body device  9  can transmit information or an electronic charging current to each other. In one embodiment of the present invention, the electronic device  9  is a tablet computer and the main body device  9  is a computer, but the present invention is not limited to said embodiment. The electronic device of the present invention is a rugged electronic device meeting military standards of high protection from electromagnetic interference (EMI), waterproofing, and dustproofing. The electronic device  8  comprises a housing  81 . Henceforth in this description, the military standard refers to a product that can be used in a rigorous or special environment or satisfy specific durability demands but is not limited to military use. 
         [0022]    As shown in  FIG. 3 ,  FIG. 4  and  FIG. 5 , the plugging structure  1  comprises a cover  10  and an circuit board  20 . The circuit board  20  is disposed between the cover  10  and the housing  81 . The cover  10  comprises two transmitting portions, the two transmitting portions being a first transmitting portion  11  and a second transmitting portion  12 . The first transmitting portion  11  and the second transmitting portion  12  are arranged side by side in the cover  10 . The first transmitting portion  11  is an original transmitting interface, and the second transmitting portion  12  is an additional transmitting interface. The original transmitting interface exists in older versions of the electronic device  8 , such as a USB 2.0 or an IEEE interface, and the additional transmitting interface is a USB 3.0 interface. As a result, the plugging structure  1  supports the original transmitting interface and the additional transmitting interface at the same time. The electronic device  8  retains the original interface for transmitting signal information and adds a new transmitting interface. As stated above, the difference between the electronic device  8  meeting military standards and a consumer product is the requirement of waterproofing and Jo dustproofing. Therefore, one cover  10  has a first transmitting portion  11  and a second transmitting portion  12  to reduce the chance of water or dust entering the device during the plugging or unplugging process. The user can handle the whole electronic device  8  to plug the electronic device  8  into the main body device  9 . 
         [0023]    As shown in  FIG. 3 ,  FIG. 4  and  FIG. 5 , the cover  10  has a fixing point  13 . The fixing point  13  is disposed between the first transmitting portion  11  and the second transmitting portion  12 . As a result, when the first transmitting portion  11  and the second transmitting portion  12  are plugged, the stress is diverted, which reduces the displacement of the cover  10 . The circuit board comprises a first circuit board  12  and a second circuit board  22 . The first circuit board  21  corresponds to the first transmitting portion  11 , and the second circuit board  22  corresponds to the second transmitting portion  12 . 
         [0024]    As shown in  FIG. 4 , in the first embodiment of the present invention, the first transmitting portion  11  comprises a pair of transmitting contacts  121 , a pair of receiving contacts  122 , a first grounding contact  123  and a pair of second grounding contacts  124 . The pair of transmitting contacts  121 , the pair of receiving contacts  122 , the first grounding contact  123  and the pair of second grounding contacts  124  are arranged in a line. The pair of transmitting contacts  121  have a transmitting positive pole  121   a (TX+) and a transmitting negative pole  121   b (TX−), and the pair of receiving contacts  122  have a receiving positive pole  122   a (RX+) and a receiving negative pole  122   b (RX−). The first grounding contact  123  is disposed between the pair of transmitting contacts  121  and the pair of receiving contacts  122 . The pair of second grounding contacts  123  are disposed on the outside of the pair of transmitting contacts  121  and the pair of receiving contacts  122 . In other words, the second transmitting is portion  12  is arranged in the following order: the second grounding contact  123 , the transmitting positive pole  121   a,  the transmitting negative pole  121   b , the first grounding contact, the receiving negative pole  122   b , the receiving positive pole  122   a  and the second grounding contact  123 . The contacts for grounding are disposed between the transmitting contact  121  and the receiving contact  122 . The contacts for grounding conduct static electricity, so the plugging structure  1  has an anti-electrostatic effect. The contacts described above are all made from Liquid Crystal Polymer (LCP). 
         [0025]    As shown in  FIG. 4 , the intervals between the transmitting positive pole  121   a,  the transmitting negative pole  121   b . the first grounding contact  123 , the receiving negative pole  122   b,  the receiving positive pole  122   a  and the second grounding contact  123  are 2.3-2.5 mm, and the optimum interval is 2.4 mm. The diameters of the contacts described above are 0.9-1.1 mm, and the optimum diameter is 1.0 mm. In one embodiment of the present invention, the transmitting contact  121 , the receiving contact  122 , the first grounding contact  123  and the second grounding contact are pogo pins, and the main body device  9  also comprises pogo pins. 
         [0026]    As shown in  FIG. 7 , when the interval between the transmitting contact  121  and the receiving contact  122  is 2.4 mm, the diameter thereof is 1.0 mm, and the 7.5 GHz de-emphasis current is below −27 dB, which meets the USB 3.0 Spec standard. The Spec standard is that the current before 2.5 GHz is below −27 dB, and the current M the range of 3 GHz-7.5 GHz is below −23 dB. 
         [0027]    As shown  FIG. 8 , when the interval between the transmitting contact  121  and the receiving contact  122  is 2.4 mm., the diameter thereof is 1.0 mm. As taking signal, the impedance reflected to the second. transmitting portion  12  is between 75 ohm 105 ohm, which meets the USB 3.0 standard. 
         [0028]    As shown in  FIG. 9 , in a second embodiment of the present invention, the second transmitting portion  12 ′ of the plugging structure  1 ′ has a pair of transmitting contacts  121 ′, a pair of receiving contacts  122 ′ and a plurality grounding contacts  125 . The contacts described above are arranged in two rows; the upper row is arranged in the order of one grounding contact  125 , the transmitting negative pole  121   b ′, the receiving positive pole  122   a ′ and one grounding contact  125 . The bottom row is arranged in the order of one grounding contact  125 , the transmitting positive pole  121   a ′, the receiving negative pole  122   b ′ and one grounding contact  125 . The upper row and the bottom row are staggered, and the intervals between the contacts belonging to the upper row and the bottom row are 2 mm. The intervals between the contacts belonging to the upper row are 3.6 mm. The intervals between the contacts in belonging to the bottom row are 3.6 mm. The diameter of any contact is 1.6 mm. 
         [0029]    As described above, the plugging structure of the present invention has at least the advantage below: Because the cover has an original transmitting interface and an additional transmitting interface, the electronic device retains the plugging structure of the original signal transmitting interface and adds a new transmitting interface in the existing space. 
         [0030]    It is noted that the above-mentioned embodiments are only for illustration. It is intended that the present disclosure cover modifications and variations of this disclosure provided they fall within the scope of the following claims and their equivalents. Therefore, it will be apparent to those skilled in the art that various modifications and variations can be made to the structure of the present disclosure without departing from the scope or spirit of the disclosure.