TWI430004B - Method for controlling light transmittance of electrochromic element - Google Patents

Description

Electrochromic element transmittance control method

The invention relates to a method for controlling the transmittance of an electrochromic element, in particular to a method for quickly and accurately adjusting the transmittance of the electrochromic element without repeated adjustment, and after aging time, There is no innovative designer of the electro-chromic element transmittance control method that affects the accuracy of its transparency and is more practical and effective in its overall application.

According to the rapid development of science and technology, various special materials have been developed. Among them, electrochromic components refer to the application of a voltage to exhibit a reversible color change property, and the original transparent colorless state is turned into a colored state after being energized. The structure is a multi-layer electrochemical device that applies a voltage to the element, and causes a change in color due to a reversible reaction of oxidation or reduction of the substance in the element. The electrochromic element can be used in daily life. Among them, if the outside sun is too strong or wants to make the interior secret, this technology can be applied to change the glass transmittance.

Wherein, the electrochromic element is used in operation, which inputs a forward power source to the electrochromic element, so that the electrochromic element has reduced transmittance, increased absorbance, and darker color (see the tenth Figure 2 shows the oxidation reaction of the electrochromic element, and inputs the reverse power to the electrochromic element to improve the transmittance of the electrochromic element. High, light absorption is reduced, and the color is lighter (please refer to the diagram of the reduction reaction of the electrochromic element in Fig. 11), and the electrochromic element is oxidized by inputting a forward or reverse power source to the electrochromic element. Or the reduction reaction can achieve the purpose of adjusting the electrochromic element to the desired transmittance.

However, although the above electrochromic element can utilize the change of the input forward or reverse power source to achieve the expected effect of adjusting the transmittance, it is also found in the overall practical use of the input power source due to the voltage and current of the input power source. Affecting the changing speed and service life of the electrochromic element, so that the method of inputting the forward or reverse power source to the electrochromic element and causing the electrochromic element to undergo oxidation or reduction reaction to change its transmittance is not only caused by the desire The process of adjusting the electrochromic element to the required transmittance needs to be adjusted repeatedly, and the change of the voltage and current repeatedly causes the life of the electrochromic element to be reduced, so that the overall operation is still performed. There is room for improvement.

In view of this, the inventor has been in the process of many years of rich experience in design and development of the relevant industries, and has made research and improvement on the existing defects, and provided a method for controlling the transmittance of electrochromic elements in order to achieve better practical value. The purpose of sex.

The main object of the present invention is to provide a method for controlling the transmittance of an electrochromic element, which is mainly capable of achieving a desired fixed transmittance by inputting a fixed total amount of electricity to the electrochromic element, so that it does not need to be repeated. The adjustment is fast and accurate, so that the electrochromic element achieves a fixed transmittance, and after the aging of the time, there is no influence on the accuracy of the transmittance, and the utility model is more practical in its application. Efficacy characteristics.

The main purpose and efficacy of the method for controlling the transmittance of the electrochromic element of the present invention are achieved by the following specific technical means:

The main difference is the relationship between the different current values generated by the electrochromic elements at the same transmittance and different input voltages and the different change speeds, and the current values per second are added to know the total amount of input required. The value is such that the total electric quantity of the fixed transmittance can be input to the electrochromic element to achieve a fixed transmittance.

A preferred embodiment of the method for controlling transmittance of an electrochromic element according to the present invention, wherein the electrochromic element knows that the amount of electricity input as the number of switching increases is reduced, and the total amount of electricity is deducted from the amount of electricity. The value can be used to obtain the value of the stop power of the fixed transmittance.

The main purpose and efficacy of the method for controlling the transmittance of the electrochromic element of the present invention are achieved by the following specific technical means:

The main difference is the relationship between the different current values generated by the electrochromic elements at the same transmittance and different input voltages and the different change speeds, and the current values per second are added to know the total amount of input required. And dividing the total electric quantity value by the size area of the electrochromic element to obtain a unit area electric quantity value of the electrochromic element per unit area reaching a fixed transmittance, and depending on the required size area when used The product of the electrochromic element and the unit area electric quantity value, that is, the total electric quantity value of the electrochromic element in the required size area to achieve a fixed transmittance can be obtained, so that the electrochromic element can be input thereto by using the electrochromic element. Fix the total power value of the transmittance, and achieve a fixed transmittance.

A preferred embodiment of the method for controlling transmittance of an electrochromic element according to the present invention, wherein the electrochromic element knows that the amount of electricity input as the number of switching increases is reduced, and then The value of the stop value of the fixed transmittance of the electrochromic element of the required size area can be obtained by deducting the difference between the total amount of electricity and the amount of decrease in the amount of electricity.

First: Schematic diagram of the characteristics of different voltages input to electrochromic elements

Figure 2: Schematic diagram of the total current area when the electrochromic element is input at 2.5V

Third figure: Schematic diagram of the total current area when the electrochromic element is input at 2.0V

Figure 4: Schematic diagram of the total current area when the electrochromic element is input at 1.5V

Figure 5: Schematic diagram of aging phenomenon of electrochromic components

Figure 6: Schematic diagram of the control steps of the present invention

Figure 7: Schematic diagram of the characteristics of different size electrochromic elements when inputting 1.5V

Figure 8: Schematic diagram of the characteristics of different size electrochromic elements when inputting 2.0V

Ninth diagram: Schematic diagram of control steps of another embodiment of the present invention

Figure 10: Schematic diagram of oxidation reaction of electrochromic elements

Figure 11: Schematic diagram of the reduction reaction of electrochromic elements

For a more complete and clear disclosure of the technical content, the purpose of the invention and the effects thereof achieved by the present invention, it is explained in detail below, and please refer to the drawings and drawings:

First, please refer to the first diagram of the characteristics of the input voltage of the electrochromic element. When the external power source is input to the electrochromic element, the transmittance of the electrochromic element is reduced, the absorbance is increased, the color is deeper, and the oxidation reaction is performed. Electrochromic element Under the condition of the same transmittance, if different voltages are input, different current values and different speeds of change will be generated, so that the relationship between the current value and the change speed of the same transmittance can be obtained from different input voltages. Regardless of the input voltage level, the change of the current value per second will form the same total power value. Please refer to the second figure for the total current area of the electrochromic element input 2.5V, and the third figure electrochromic. Schematic diagram of the total current area when the component is input at 2.0V, and the total current area shown in the fourth figure when the electrochromic element is input at 1.5V], for example, the current value is 50mA in the first second, the current value is 45mA in the second second, and the current value is 30mA in the third second. ... + the current value of the nth second [transmission arrival] is the total electricity value.

Please refer to the fifth diagram for the aging phenomenon of electrochromic components, and because the electrochromic components will age after using them for a period of time, that is, input the same voltage, the same amount of current and the same light. In the case of degree, the speed of change of transmittance will change. For example, the speed of change of transmittance between the first, the 4,000th and the 6,000th will become faster and faster, resulting in the first time. The transmittance change speed time is calculated, and the transmittance is not the required transmittance.

In this way, please refer to the sixth figure, which is shown in the schematic diagram of the control steps of the present invention, which are different current values and different change speeds generated by the electrochromic elements at the same transmittance and different input voltages. The relationship between the current values per second is added to the total amount of electricity required for the input, and it is known from the aging phenomenon of the electrochromic element that the amount of electricity input as the number of switching increases will decrease, and the total amount of electricity will be reduced. The deduction of the difference in the amount of power reduction can obtain the value of the stop power of the fixed transmittance, so that the value of the stop power of the fixed transmittance can be input by using the electrochromic element, and the adjustment can be performed without repeated adjustment. Accurately make the electrochromic element achieve a fixed transmittance, and after the aging of the time, there will be no impact on the accuracy of the transmittance.

In addition, please refer to the seventh diagram for the characteristics of different sizes of electrochromic components when inputting 1.5V and the eighth diagram for the characteristics of different sizes of electrochromic components when inputting 2.0V. When the component has the same transmittance and different input voltages, the total current area capacity value obtained by the relationship between different current values and different change speeds is proportional; so please refer to the ninth figure for another aspect of the present invention. The schematic diagram of the control steps of the embodiment shows that the current value of each second can be added by the relationship between the different current values generated by the electrochromic element at the same transmittance and different input voltages and the different speeds of change. Knowing the total electric quantity value of the input required, and dividing the total electric quantity value by the size area of the electrochromic element, obtaining the electric quantity per unit area of the unit area of the electrochromic element reaching a fixed transmittance, When the electrochromic element of different size areas is multiplied by the electric quantity per unit area, the electrochromic element in the required size area can be obtained to achieve a fixed transmittance. The total amount of electricity, and the aging phenomenon of the electrochromic element, it is known that the amount of electricity input will decrease as the number of switching times increases, and the total amount of electricity is deducted from the difference in the amount of electricity to obtain the required size. The value of the stop power of the fixed transmittance of the color changing element enables the input of the fixed light transmittance to be used for the use of the electrochromic element, and the electrochromic can be quickly and accurately adjusted without repeated adjustments. The component achieves a fixed transmittance and does not affect the accuracy of its transparency after the aging of time.

From the above, the composition and use of the structure of the present invention show that, compared with the prior art, the present invention mainly utilizes the total amount of electricity input to the electrochromic element to achieve the desired fixation. The transmittance is such that it does not need to be adjusted repeatedly, that is, the electrochromic element achieves a fixed transmittance quickly and accurately, and after the aging phenomenon, there is no possibility of affecting the transparency of the transmittance. and Those who have increased utility characteristics in their overall implementation.

However, the above-described embodiments or drawings are not intended to limit the structure or the use of the present invention, and any suitable variations or modifications of the invention will be apparent to those skilled in the art.

In summary, the embodiments of the present invention can achieve the expected use efficiency, and the specific structure disclosed therein has not been seen in similar products, nor has it been disclosed before the application, and has completely complied with the provisions of the Patent Law. And the request, the application for the invention of a patent in accordance with the law, please forgive the review, and grant the patent, it is really sensible.

Claims (4)

A method for controlling transmittance of an electrochromic element, which is mainly a relationship between different current values generated by electrochromic elements at different transmittances and different input voltages and different speeds of change, and current values per second Adding the total charge value of the input required is such that the total charge value of the fixed transmittance can be input to the electrochromic element, and a fixed transmittance can be achieved. The method for controlling transmittance of an electrochromic element according to claim 1, wherein the electrochromic element knows that the amount of electricity input as the number of switching increases is reduced, and the total amount of electricity is deducted. The difference can be used to obtain the value of the stop power of the fixed transmittance. A method for controlling transmittance of an electrochromic element, which is mainly a relationship between different current values generated by electrochromic elements at different transmittances and different input voltages and different speeds of change, and current values per second Adding the total electric quantity value of the input required, and dividing the total electric quantity value by the size area of the electrochromic element, obtaining the electric quantity per unit area of the unit area of the electrochromic element reaching a fixed transmittance, When used, the product of the electrochromic element of different size and the unit area electric quantity value is obtained, that is, the total electric quantity value of the electrochromic element of the required size area to achieve a fixed transmittance can be obtained, so that By using the electrochromic element, the total amount of electric power of the fixed transmittance can be input thereto, and a fixed transmittance can be achieved. The method for controlling transmittance of an electrochromic element according to claim 3, wherein the electrochromic element knows that the amount of electric power input decreases as the number of switching times increases, and the total electric quantity value is deducted from the electric quantity. The difference can be obtained for the required size area The value of the stop power of the fixed transmittance of the color-changing element.