Patent Publication Number: US-8987996-B2

Title: Light emitting module

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention is related to a light emitting diode module, and is particularly related to a light emitting diode module that uses a wireless device to control its light emitting and that integrates a power input control system into a main base board. 
     2. Description of the Prior Art 
     Compared with conventional white light, fluorescent light, or other light sources, the light emitting diode has the advantages of low temperature, high luminescence efficiency, low environmental impact, and long life time and has gradually become the first option for various luminescence apparatuses. 
     Generally, a light emitting diode is disposed on a main base board and is then installed in a tube or a light bulb. A power input control system is used for controlling the light emitting diode to emit light. Conventional main base boards are used for only disposing light emitting diodes, and power input control systems and wireless devices are not integrated into the main base board. Therefore, it is not convenient to assemble such devices, and there is a certain problem of heat dissipation. 
     SUMMARY OF THE INVENTION 
     A major objective of the present invention is to provide a light emitting diode module that can be controlled by a wireless device. In addition, a power input control system is integrated on a main base board. 
     To achieve the objective, the light emitting diode module can receive a control signal input by users. The light emitting diode module includes a main base board, a wireless communication module, a plurality of light emitting diodes, a power output control system and a control unit. 
     The wireless communication module is used for receiving a control signal. The plurality of light emitting diodes is disposed on the main base board. The plurality of light emitting diodes comprises light emitting diodes having at least one color. The power output control system is electrically connected to the plurality of light emitting diodes. The power output control system is used for adjusting an amount of current flowing through each of the light emitting diodes. By adjusting the amount of current, the plurality of light emitting diodes is controlled, such that the color or brightness of the light emitted by the plurality of light emitting diodes can be varied. The control unit is electrically connected to the wireless communication module and the power output control system. The control unit controls the power output control system to adjust the amount of current flowing through each light emitting diode. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The above and other objectives, features, and advantages of the present invention are hereunder illustrated with specific embodiments in conjunction with the accompanying drawings and therefore rendered distinctive and comprehensible, in which: 
         FIG. 1  illustrates a structure diagram of a light emitting diode module in a first embodiment according to the present invention; 
         FIG. 2  illustrates a structure diagram of a light emitting diode module in a second embodiment according to the present invention; 
         FIG. 3  illustrates a structure diagram of a light emitting diode module in a third embodiment according to the present invention; 
         FIG. 4  illustrates a structure diagram of a light emitting diode module in a fourth embodiment according to the present invention; 
         FIG. 5  illustrates a structure diagram of a light emitting diode module in a fifth embodiment according to the present invention; 
         FIG. 6  illustrates a structure diagram of a light emitting diode module in a sixth embodiment according to the present invention; 
         FIG. 7  illustrates a structure diagram of a light emitting diode module in a seventh embodiment according to the present invention; and 
         FIG. 8  illustrates a structure diagram of a light emitting diode module in an eighth embodiment according to the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE EMBODIMENTS OF THE INVENTION 
     Please refer to  FIG. 1 , which illustrates a structure diagram of a light emitting diode module according to a first embodiment of the present invention. 
     As illustrated in  FIG. 1  in the first embodiment of the invention, the light emitting diode module  1  includes a main base board  10 , a wireless communication module  20 , a plurality of light emitting diodes  30 , a power output control system  40  and a control unit  50 . The invention, however, is not limited to such configuration. For example, the wireless communication module  20  and the control unit  50  may be combined to be a single unit. 
     In the first embodiment of the invention, the main base board  10  is made of aluminum material and the main base board  10  has a circular plate shape. The invention, however, is not limited to such configuration. For example, the shape of the main base board  10  can be designed as an irregular shape according design requirements. 
     In the first embodiment of the invention, the wireless communication module  20  is disposed on the main base board  10 . The wireless communication module  20  includes an antenna  21  that extends to one side of the main base board  10  for preventing signals from being blocked due, to a shielding effect to the antenna  21 . The wireless communication module  20  is used for receiving a control signal of a user. In the embodiment, the wireless communication module  20  is a Bluetooth device,. and the antenna  21  is a Bluetooth antenna. The invention, however, is not limited to Bluetooth devices, and may, for example, cover infrared transmission devices, wireless network devices or voice control devices. For example, the wireless communication module  20  can be a voice control device, and the control signal can be a voice control signal. 
     In the first embodiment of the invention, the light emitting diodes  30  are disposed on the main base board  10 . The light emitting diodes  30  include a red light emitting diode  31 , a green light emitting diode  32 , a blue light emitting diode  33  and a white light emitting diode  34 . In the embodiment, the light emitting diodes  30  are integrated in the same light ball. By adjusting the brightness of the light emitting diodes  31 ,  32 ,  33  and  34  of different colors, the light emitting diode module  1  as a whole emits light of various colors; i.e., the light ball emits light of multiple colors, including colors other than red, green, blue and white. 
     In the first embodiment of the invention, the power output control system  40  is disposed on the main base board  10 . The power output control system  40  includes a plurality of power output controllers  40   a ,  40   b,    40   c  and  40   d,  and each power output controller  40   a,    40   b,    40   c  and  40   d  is respectively electrically connected to the light emitting diodes  31 ,  32 ,  33  and  34  having different colors. The power output control system  40  is used for receiving current input from the power source  90  and adjusts the amounts of current being output to each of the light emitting diodes  31 ,  32 ,  33  and  34 . By adjustment of the amounts of current flowing through each of the light emitting diodes  31 ,  32 ,  33  and  34 , the color or brightness of the plurality of light emitting diodes as a whole can be changed. For example, when the power output control system  40  controls current of a certain ratio flowing through the red light emitting diode  31  and the green light emitting diode  32  while no current is flowing through the blue light emitting diode  33  and the white light emitting diode  34 , the plurality of light emitting diodes as a whole give out yellow light. 
     In the first embodiment of the invention, the control unit  50  is disposed on the main base board  10  and is electrically connected to the wireless communication module  20  and the power output control system  40 . The control unit  50  includes a memory module  51  and a timer  52 . The memory module  51  is used for storing a control parameter so that after the control unit  50  receives the control signal, the power output control system  40  adjusts the input current flowing to each light emitting diode  30  according to the control parameter. As such, the color, brightness or timing of light emission of the plurality of light emitting diodes may be controlled. In addition, the control unit  50  may individually be used for controlling the color, brightness, or positive or negative light emission according to the control signal input by users. The timer is used for counting time. 
     For example, users may set a time parameter of a timing switch of the light emitting diode module  1  via a Bluetooth device of a mobile phone. For example, the light emitting diode module  1  is set to emit light from 11 pm each evening to 8 am the next morning. After the control parameter is input from a mobile phone to the light emitting diode module  1 , it is stored in the memory module  51  of the control unit  50 . After users program the timer to emit light from 11 pm every night to 8 am the next morning, i.e., inputting the control signal, the control unit  50  controls the light emitting diode module  1  to emit light during the set time. On the other hand, when users want to cancel the timing switch function of emitting light from 11pm each night to 8 am the next morning, users may use their Bluetooth devices to turn off the timing switch function. After it is turned off, the control unit  50  no longer controls the light emitting diode module  1  to emit or not to emit light according to the control parameter that was set previously. In addition, users may use Bluetooth devices to delete or to reset the control parameter or to add a new control parameter to the memory module  51 . For example, in addition to emitting light from 11 pm each night to 8 am the next morning, the control unit  50  can be set, such that light is automatically emitted from 5 pm each evening to 8 pm at night. 
     For another example, users may use Bluetooth devices in their mobile phones to input color parameters for changing the color of light emitted by the light emitting diode module  1  during different times. For example, the light emitting diode module  1  may be set to emit white light from 6 pm each evening to 11 pm at night, and to emit red light from 11 pm at night to 6 am the next morning. Similarly, these control parameters are input to the light emitting diode module  1  and then are stored in the memory module  51  for users to request the control unit  50  to execute. 
     Next, please refer to  FIG. 2 , which illustrates a structure diagram of a light emitting diode module according to a second embodiment. 
     As shown in  FIG. 2 , in a second embodiment of the present invention, the main base board  10  has a breaking hole  11 , and the antenna  21  is located at the position of the breaking hole to prevent signals from being blocked due to shielding of the main base board  10 . 
     Please refer to  FIG. 3 , which illustrates a structure diagram of the light emitting diode module in a third embodiment of the present invention. 
     As illustrated in  FIG. 3 , in a third embodiment of the present invention, the main base board  10  has a communication area  12 . The communication area  12  is made of plastic material, and the antenna is located in the communication area  12  to prevent signals from being blocked due to a shielding effect. 
     Please refer to  FIG. 4 , which illustrates a light emitting diode module in a fourth embodiment of the present invention. 
     As illustrated in  FIG. 4 , in a fourth embodiment of the present invention, the wireless communication module  20  and the antenna  21  of the light emitting diode module  1  are located outside the main base board. In such a way, the shielding effect is also prevented. 
     Please refer to  FIG. 5 , which illustrates a structure diagram of a light emitting diode module in a fifth embodiment of the present invention. 
     As illustrated in  FIG. 5 , in a fifth embodiment of the present invention, the light emitting diode module  1  further includes a sub base board  60 . The sub base board  60  is made of non-metal material. The wireless communication module  20  and the antenna  21  are disposed on the sub base board  60 . Because the sub base board  60  is made of non-metal material, it causes no shielding effect for the antenna  21 , and, thus, such approach also prevents blocking of the signals for the antenna  21  due to a shielding effect. 
     Next, please refer to  FIG. 6 , which illustrates a structure diagram of a light emitting diode module in a sixth embodiment of the present invention. 
     As illustrated in  FIG. 6 , in a sixth embodiment of the present invention, the shape of the main base board  10  is not a circular plate shape but has a gap  13 , and the sub base board is disposed at the position of the gap  13 . With such a design, the material cost of manufacturing the main base board  10  and the sub base board  60  is reduced, and the space occupied by the two components is also reduced to reduce the size of the light emitting diode module  1 . The invention, however, is not limited to such configuration. The wireless communication module  20  may also cross between the main base board  10  and the sub base board  60 , and the antenna may remain in the range of the sub base board  60 . As such, the manufacturing cost of connecting lines between the main base board  10  and the sub base board  60  can be further reduced. 
     Next, please refer to  FIG. 7 , which illustrates a structure diagram of a light emitting diode module in a seventh embodiment of the present invention. 
     As illustrated in  FIG. 7 , in the seventh embodiment of the present invention, the difference between the seventh embodiment and the fifth embodiment is primarily that the wireless communication module  20  and the antenna  21  are separately disposed. That is, the wireless communication module  20  is disposed on the main base board  10 , and the antenna  21  is disposed on the sub base board  60 . As such, the manufacturing cost and the size of the sub base board  60  can be reduced. The present invention, however, is not limited to such configuration. The antenna  21  can be electrically connected to the wireless communication module  20 , and there is no need for the sub base board  60  at all. 
     Finally, please refer to  FIG. 8 , which illustrates a structure diagram of a light emitting diode module in an eighth embodiment of the present invention. 
     As illustrated in  FIG. 8 , in an eighth embodiment of the present invention, the difference between the eighth embodiment and the fifth embodiment is primarily that the control unit  50  is disposed on the sub base board  60  to reduce the size and manufacturing cost of the main base board. 
     The foregoing descriptions of embodiments of the present invention have been presented only for purposes of illustration and description. They are not intended to be exhaustive or to limit the present invention to the forms disclosed. Accordingly, many modifications and variations will be apparent to practitioners skilled in the art. Additionally, the above disclosure is not intended to limit the present invention. The scope of the present invention is defined by the appended claims.