Abstract:
The present invention discloses a light-emitting module using a special circuit design to solve the abnormal breakage of the battery lifetime and comprising a power supply module storing an electrical power; a first sub-circuit and a second sub-circuit, the first sub-circuit comprising a first light-emitting diode module, the second sub-circuit comprising a second light-emitting diode module and a passive component, wherein the passive component is connected with the second light-emitting diode module in series, the lighting color of the light-emitting diode module is different from the lighting color of the second light-emitting diode module; and a control module coupled to the power supply module, the first sub-circuit, and the second sub-circuit, for supplying the electrical power with the first sub-circuit and the second sub-circuit and driving the first light-emitting diode module and the second light-emitting diode module to emit light.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    1. Field of the Invention 
         [0002]    The present creation relates to a light-emitting module, more particularly, to a light-emitting module using a special circuit design to solve the abnormal breakage for battery lifetime. 
         [0003]    2. Description of the Prior Art 
         [0004]    The present creation relates to a light-emitting module with function of energy saving. Light-emitting diodes can be embedded on the surface of the shoe to flash with various colors. When wearing the shoe, the shoe is treaded by a user for starting a pressure sensing switch in a control module to turn on the power and drive the light-emitting module to light. 
         [0005]    In order to achieve the above mentioned functions, the conventional light-emitting modules mostly contain a battery, a controller, and a plurality of light-emitting diodes emitting with different colors. In the assembly completed state, the battery will be controlled by the controller to supply each light-emitting diode module for making light-emitting diodes to emit light. In the practical application, these light-emitting diodes are mostly mixed with light-emitting diode chips having a variety of different colors for simultaneously or sequentially emitting light with a variety of different colors, which can be utilized for alert or decoration purposes. 
         [0006]    The existing flashing shoes hide some drawbacks. More particularly, during durability testing, the energy consumption rate of the battery is much higher than its theoretical value while the light-emitting diode module comprises different threshold voltages. In some cases, the durability of the battery is even less than one-tenth of its theoretical lifetime. Specifically, the electrical conditions of light-emitting diodes having different colors are not the same with the conventional flash shoe, e.g., the voltage drop of a red semiconductor chip is about between 1.8V and 2.2V, and the voltage drop of a blue semiconductor chip is about between 2.8V and 3.2V. If the blue chips and the red chips are separately and directly connected with the battery for supplying the electrical power, and then the battery lifetime will result in abnormality and fast loss due to voltage quickly switching, that is also the main reason for the above mentioned problems. 
         [0007]    Accordingly, the inventor provides an innovative and effective circuit to overcome the above mentioned problems. Briefly, a passive component is utilized to balance the voltage drop of each LED chip circuit by the inventor, and thus the problem of the unbalanced voltage drop resulting in the abnormal breakage of the battery lifetime can be slow down. 
       SUMMARY OF THE INVENTION 
       [0008]    The invention aims to provide a light-emitting module with simple structure, it can balance the voltage drop of each light-emitting diode chip circuit, and thus slow down the problem of the unbalanced voltage drop resulting in the abnormal breakage of the battery lifetime. 
         [0009]    To achieve the above mentioned purpose, the present invention discloses a light-emitting module comprising a power supply module, a first sub-circuit and a second sub-circuit, and a control module. 
         [0010]    The power supply module stores an electrical power. 
         [0011]    The first sub-circuit comprises a first light-emitting diode module. The second sub-circuit comprises a second light-emitting diode module and a passive component. Wherein the passive component is connected with the second light-emitting diode module in series, the lighting color of the light-emitting diode module is different from the lighting color of the second light-emitting diode module. 
         [0012]    The control module is coupled to the power supply module, the first sub-circuit, and the second sub-circuit, for supplying the electrical power with the first sub-circuit and the second sub-circuit and driving the first light-emitting diode module and the second light-emitting diode module to emit light. 
         [0013]    Additionally, the invention further comprises a dynamic sensing module. The dynamic sensing module is coupled to the control module. The dynamic sensing module is applied by an external force for generating a start signal so that the control module can drive the first light-emitting diode module and the second light-emitting diode module to emit light. 
         [0014]    Additionally, the passive component is a diode. 
         [0015]    Additionally, the passive component is a resistance. 
         [0016]    Additionally, the invention further comprises a fourth sub-circuit. The fourth sub-circuit is connected with the second sub-circuit in parallel and comprises. The fourth sub-circuit comprises a fourth light-emitting diode module and a passive component connected with the fourth light-emitting diode module in series, wherein the passive component connected with the second light-emitting diode module and the passive component connected with the fourth light-emitting diode module are a diode respectively. 
         [0017]    Additionally, the voltage drop of the first light-emitting diode module is between 2.8V and 3.2V, the voltage drop of the second light-emitting diode module is between 1.8V and 2.2V, the passive component is a diode, and the forward bias of the diode is between 1V and 1.1V. 
         [0018]    Additionally, the corresponding wavelength of the first light-emitting diode module is between 400 nm and 520 nm, the corresponding wavelength of the second light-emitting diode module is between 620 nm and 750 nm, and the passive component is a diode. 
         [0019]    Additionally, the power supply module is a lithium battery. 
         [0020]    The present invention further discloses a light-emitting module comprising a power supply module, a first sub-circuit and a second sub-circuit, a control module, and a dynamic sensing module. 
         [0021]    The power supply module stores an electrical power. 
         [0022]    The first sub-circuit comprises a first light-emitting diode module. The second sub-circuit comprises a second light-emitting diode module and a passive component. 
         [0023]    The control module is coupled to the power supply module, the first sub-circuit and the second sub-circuit, for supplying the electrical power with the first sub-circuit and the second sub-circuit and driving the first light-emitting diode module and the second light-emitting diode module to emit light. 
         [0024]    The dynamic sensing module is coupled to the control module. The dynamic sensing module is applied by an external force for generating a start signal so that the control module can drive the first light-emitting diode module and the second light-emitting diode module to emit light. 
         [0025]    Wherein one end of the first sub-circuit and one end of the second sub-circuit are respectively connected with the control module, and the other end of the first sub-circuit is connected with the other end of the second sub-circuit, a difference value is defined between the voltage drop of the first sub-circuit and the voltage drop of the second sub-circuit, and the ratio between the difference value and the voltage drop of the first sub-circuit is small than 15%. 
         [0026]    Additionally, the passive component is a diode. 
         [0027]    The invention is an innovative and effective circuit to overcome the problem of the unbalanced voltage drop resulting in the abnormal breakage of the battery lifetime, and utilizes a passive component to balance the voltage drop of each LED chip circuit. The advantages and spirits of the present invention can be further understood by the following description of the invention and the appended drawings. 
     
    
     
       BRIEF DESCRIPTION OF THE APPENDED DRAWINGS 
         [0028]      FIG. 1  is a schematic diagram illustrating an automatic light-emitting shoe according to a preferred embodiment of the present invention. 
           [0029]      FIG. 2  is a circuit diagram illustrating the light-emitting module of the present invention according to a preferred embodiment. 
           [0030]      FIG. 3  is a circuit diagram illustrating the light-emitting module of the present invention according to another preferred embodiment. 
           [0031]      FIG. 4  is a circuit diagram illustrating the light-emitting module of the present invention according to another preferred embodiment. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0032]    Please refer to  FIG. 1 .  FIG. 1  illustrates a schematic diagram of a light-emitting shoe. As shown in the figure, the light-emitting shoe  1  comprises a shoe body  20  and a light-emitting module  10 . In the present embodiment, the light-emitting module  10  is set on the outer surface of the shoe body  20  for others to recognize, but is not limited thereto. In practical applications, the light-emitting module  10  can be set on any of surfaces of the shoe body  20  for exposing its each light-emitting diode on any one positions of the outer surface of the shoe body  20 , such as the side surface, after-body, or site fixing shoelaces of the shoe body  20 , and the present invention is not limited to the embodiment described herein. 
         [0033]    The design of the light-emitting module  10  will be explained in the following description. Please refer to  FIG. 2 .  FIG. 2  is a circuit diagram illustrating the light-emitting module  10  of the present invention according to a preferred embodiment. As shown in the figure, the light-emitting module  10  of the present invention at least comprises a power supply module  11  and a control module  12 . 
         [0034]    The power supply module  11  of the present invention is used for supplying the electrical power with each component of the present invention. In the present embodiment, the power supply module  11  refers to a battery, more particularly, the power supply module  11  comprises one or more lithium batteries with about 3V DC output voltage. But not limited thereto, in practical applications, the power supply module  11  may also refer to other types of the batteries or electrical power generating components such as a piezoelectric material or a power generation component of the electromotive force. 
         [0035]    On the other hand, the control module  12  of the present invention is used for controlling each component. In the present embodiment, the control module  12  is connected with the power supply module  11 . Additionally the control module  12  is connected with a first sub-circuit  121  and a second sub-circuit  122 . Wherein, one end of the first sub-circuit  121  and one end of the second sub-circuit  122  are respectively connected with the control module  12 , and the other end of the first sub-circuit  121  is connected with the other end of the second sub-circuit  122 . The first sub-circuit  121  and one end of the second sub-circuit  122  have a light-emitting diode module separately, but the voltage drop of the light-emitting diode module of the first sub-circuit  121  is higher than the voltage drop of the light-emitting diode module of the second sub-circuit  122 . For balance the difference between them, a passive component  122 B is set in the second sub-circuit  122  for balancing the voltage drop between each sub-circuit to ease the problem of the efficiency rapid declining of the power supply module  11  due to the different value of the voltage drop. 
         [0036]    An embodiment will be explained in the following description. In the present embodiment, the first sub-circuit  121  comprises a first light-emitting diode module  121 A. The first light-emitting diode module  121 A comprises a first light-emitting diode chip. In the present embodiment, the first light-emitting diode module  121 A is a bullet-type light-emitting diode module after packaged, which has a reflecting cup structure, wherein the reflecting cup structure is set by a blue light-emitting diode chip with a wavelength between about 400 nm and 520 nm. On the other hand, the voltage drop of the first light-emitting diode module  121 A is between about 2.8V and 3.2V. 
         [0037]    On the other hand, the corresponding second sub-circuit  122  comprises a second light-emitting diode module  122 A and a passive component  122 B connected with the second light-emitting diode module in series. In the present embodiment, the second light-emitting diode module  122 A is a bullet-type light-emitting diode module after packaged, which has a reflecting cup structure, wherein the reflecting cup structure is set by a red light-emitting diode chip with a wavelength between about 620 nm and 750 nm. On the other hand, the voltage drop of the second light-emitting diode module  122 A is between about 1.8V and 2.2V. Additionally, the passive component  122 B is a diode. The maximum power dissipation of the diode is 500 mW. The forward voltage drop (VF) of the diode is 1V while the forward current of the diode is 10 mA, and the forward voltage drop of the diode is 1.1V while the forward current of the diode is 100 mA, but the passive component  122 B of the present invention is not limited thereto, in practical application, the passive component  122 B may be a resistance or any other components for generating the voltage drop. And the fourth sub-circuit  124  corresponds to the second sub-circuit  122 . 
         [0038]    Take this design, the voltage drop of the first sub-circuit  121  and the voltage drop of the second sub-circuit  122  are substantially the same value, namely the voltage drop of the first light-emitting diode module  121 A and the sum of the voltage drops between the second light-emitting diode module  122 A and the passive component  122 B connected with the second light-emitting diode module in series are substantially the same value. It should be noted that, in the spirit of the invention, the passive component  122 B is used for reducing the difference of voltage drop between the first light-emitting diode module  121 A and the second light-emitting diode module  122 A, so as to increase the stability of the battery when supplying the electrical power and further extending the lifetime of the battery. Because the voltage and the current of the electronic component is not a fixed value, so in the practical application, the above mentioned word of “substantially the same” is to be understood as that the sum of the voltage drops between the second light-emitting diode module  122 A and its passive component  122 B is within the range of 15% voltage drop of the first light-emitting diode module  121 A. For example, if a standard value (take the highest value as standard) is 1, then while another value is greater than or equal to 0.85, both of which may be regarded as substantially the same. 
         [0039]    While in application, a start signal is received by the control module  12  to make the power supply module  11  simultaneously or sequentially supply the electrical power with the first sub-circuit  121  and the second sub-circuit  122  for driving the first light-emitting diode module  121 A and the second light-emitting diode module  122 A to emit light. In the present embodiment, the start signal is generated by a dynamic sensing module  125 . The dynamic sensing module  125  is connected with the control module  12 , and applied by an external force or accelerated velocity for generating the start signal, such as a spring switch or a three-axis acceleration sensor. Additionally, in the present embodiment, one end of the dynamic sensing module  125 , one end of the dynamic sensing module  125 , and grounding end of the control module  12 , three of them are together connected with the ground. But the invention for generating the start signal is not limited to the dynamic sensing module  125 , the start signal may be generated by a manual pressing switch, a manual rotary switch, a manual toggle switch, or an automatic pressure-sensitive switch according to the different design, the present invention would not pay more restrictions on it. With a mention that start signal is not limited to an electronic signal, which may also use the mechanical theory to complete the circuit switching behavior. 
         [0040]    On the other hand, in addition, the present invention may be achieved in another way. Please refer to  FIG. 3 .  FIG. 3  is a circuit diagram illustrating the light-emitting module  10  of the present invention according to another preferred embodiment. As shown in the figure, a mother circuit of the control module  12  comprises the first sub-circuit  121  and the second sub-circuit  122  besides further comprising a third sub-circuit  123  and a fourth sub-circuit  124 , and the above mentioned circuits are substantially connected with each other in parallel, such that the type of the emitting light is more changeable. In order to save cost, the design of the  FIG. 4  may be used by users in the invention when the second light-emitting diode module  122 A and the fourth light-emitting diode module  124 A are substantially the same, such as both of them using the red light-emitting diode, or one using the orange light-emitting diode and the other one using the yellow light-emitting diode. As shown in the figure, in the present embodiment, the design of the third sub-circuit  123  and the design of the first sub-circuit  121  are substantially the same, and the third sub-circuit  123  has a third light-emitting diode module  123 A, and the electronic characteristic of the third light-emitting diode module  123 A and the electronic characteristic of the first light-emitting diode module  121 A are substantially the same, such as both of them using the blue light-emitting diode, or one using the green light-emitting diode and the other one using the blue light-emitting diode, so it is not repeated here. And the fourth sub-circuit  124  corresponds to the second sub-circuit  122 , it should be noted that the fourth sub-circuit  124  is connected with the second sub-circuit  122  in series for sharing the same passive component, and the fourth light-emitting diode module  124 A of the fourth sub-circuit  124  is connected with the second light-emitting diode module  122 A of the second sub-circuit  122  in parallel. 
         [0041]    Overall, the inventor provides an innovative and effective circuit, which may overcome the problem of battery lifetime abnormality losing caused by unbalanced voltage drop. Briefly, the invention utilizes a passive component to balance the voltage drop of each light-emitting diode chip circuit, and thus slow down the above mentioned problem. 
         [0042]    Before further explaining the present invention, finally, needs to known that the above mentioned contents in the present specification is just one of many examples belonging to the present invention. Any methods or means similar or equivalent to the above mentioned methods and modules in the present specification is able to be used when the present invention is operating in actual application. A number mentioned above or below in the present specification comprises the number itself. Additionally, if the present specification mentions that person A is electrically connected with or coupled to person B, which actually means that person A and person B have energy transmission behavior, data transmission behavior or signal transmission behavior, but is not limited to actually connect, whereby the transmission behaviors operated by electricity, light, or electromagnetic wave or other means etc. in wire or wireless way are all belong to its meaning. 
         [0043]    Then, some methods or processes mentioned in the present specification are not limited to the order record in present specification, besides it is clear excluded in the present specification, otherwise the order of each step or process are arranged by the user according to their need for freely adjusting. Additionally, considering the features of each component are similar, so the explain and the symbol of each component with similar features are mutually applicable. In addition, the module, devices, components, or constituent parts etc. mentioned in the present specification is not limited to the hardware that are actually mutually independent, which may also be the individual software or individual firmware or the software or firmware after integration. 
         [0044]    With the examples and explanations mentioned above, the features and spirits of the invention are hopefully well described. More importantly, the present invention is not limited to the embodiment described herein. Those skilled in the art will readily observe that numerous modifications and alterations of the device may be made while retaining the teachings of the invention. Accordingly, the above disclosure should be construed as limited only by the metes and bounds of the appended claims.