Quality detection method, electronic device and computer readable storage medium

Abstract

The present application provides a quality detection method, an electronic device, and a computer-readable storage medium, and the present application relates to the technical field of electronic devices with a color-changing function. The method obtains the first open-circuit voltage of the electrochromic device when the preset coloring strategy is completed, and obtains the second open-circuit voltage of the electrochromic device when the preset fading strategy is completed; if the first open-circuit voltage meets the coloring voltage threshold, and the second open-circuit voltage meets the fading voltage threshold, the electrochromic device is tested for leakage; if the leakage rate of the electrochromic device meets the leakage rate threshold, the electrochromic device is judged to be of qualified quality. The present application identifies the color-changing performance of the electrochromic device based on the correlation between the open-circuit voltage of the electrochromic device and the degree of color change. The solution ensures the color change consistency of the final product of the electrochromic device.

Description

Technical Field

[0001] The present application relates to the technical field of electronic devices with a color changing function, and in particular to a quality detection method, an electronic device, and a computer-readable storage medium. Background Art

[0002] Electrochromic devices need to control the reversible electrochemical redox reaction of the materials in the electrochromic device to adjust the color change process and degree of the device. Electrochromic devices are multi-layer structures, and the performance fluctuations of each layer structure affect the performance of the final product. In industrial production, it is difficult to ensure that the structural properties of each layer of the electrochromic device are completely consistent, and thus it is difficult to ensure the color consistency of electrochromic devices produced in industrial batches. Summary of the invention

[0003] In one aspect, the present application provides a method for detecting the quality of an electrochromic device, comprising:

[0004] Acquiring a first open circuit voltage of the electrochromic device when a preset coloring strategy is completed, and acquiring a second open circuit voltage of the electrochromic device when a preset fading strategy is completed;

[0005] If the first open circuit voltage meets the coloring voltage threshold, and the second open circuit voltage meets the fading voltage threshold, then the electrochromic device is tested for leakage;

[0006] If the leakage rate of the electrochromic device meets the leakage rate threshold, the electrochromic device is judged to be of qualified quality.

[0007] The present application further provides an electronic device, including:

[0008] a detection module, used to obtain a first open circuit voltage of the electrochromic device when a preset coloring strategy is completed, used to obtain a second open circuit voltage of the electrochromic device when a preset fading strategy is completed, and used to perform leakage detection on the electrochromic device when the first open circuit voltage meets the coloring voltage threshold and the second open circuit voltage meets the fading voltage threshold; and

[0009] A processor is used to determine whether the first open circuit voltage meets the coloring voltage threshold and whether the second open circuit voltage meets the fading voltage threshold, to determine whether the leakage rate of the electrochromic device meets the leakage rate threshold, and to determine that the electrochromic device is of qualified quality when the leakage rate of the electrochromic device meets the leakage rate threshold.

[0010] The present application further provides an electronic device, including:

[0011] Middle frame;

[0012] A transparent cover plate is fixedly connected to the middle frame and forms a receiving space;

[0013] An electrochromic device is arranged in the accommodation space and is stacked with the transparent cover plate;

[0014] a mainboard, installed in the accommodation space and provided with a processor; and

[0015] A voltage detection module, used to obtain a first open circuit voltage of the electrochromic device when a preset coloring strategy is completed, used to obtain a second open circuit voltage of the electrochromic device when a preset fading strategy is completed, and used to obtain a third open circuit voltage of the electrochromic device when a leakage condition is detected;

[0016] Among them, the processor is used to determine whether the first open circuit voltage meets the coloring voltage threshold and whether the second open circuit voltage meets the fading voltage threshold, and is used to determine that the electrochromic device is of qualified quality when the third open circuit voltage meets the preset leakage voltage threshold.

[0017] The present application further provides an electronic device, including a processor and a memory, wherein the memory stores a computer program, and when the computer program is executed by the processor, it is used to implement the method described above.

[0018] The embodiments of the present application further provide a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method described above is implemented.

[0019] This application identifies the color change performance of electrochromic devices based on the correlation between the open circuit voltage and the color change degree of electrochromic devices. In the scheme, the open circuit voltage detection during coloring and fading is used to determine the difference in the color change degree of the electrochromic device, and qualified electrochromic devices are screened out, thereby ensuring the color change consistency of the final electrochromic device product. In addition, by detecting the leakage of the electrochromic device, qualified electrochromic devices are screened out, thereby ensuring the consistency of the service life of the electrochromic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the implementation modes of the present application, the drawings required for use in the description of the implementation modes will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 A flow chart of a quality inspection method in an embodiment of the present application is disclosed;

[0022] Figure 2 A flow chart of a quality inspection method in another embodiment of the present application is disclosed;

[0023] Figure 3 A flow chart of a quality inspection method in another embodiment of the present application is disclosed;

[0024] Figure 4 A flow chart of a quality inspection method in another embodiment of the present application is disclosed;

[0025] Figure 5 A schematic flow chart of a control method for a preset control strategy in an embodiment of the present application is disclosed;

[0026] Figure 6 A schematic flow chart of a method for detecting the temperature of an electrochromic device in an embodiment of the present application is disclosed;

[0027] Figure 7 A schematic flow chart of a control method for a preset control strategy in another embodiment of the present application is disclosed;

[0028] Figure 8 A schematic flow chart of a control method for a preset control strategy in another embodiment of the present application is disclosed;

[0029] Fig. 9 A schematic flow chart of a control method for a preset control strategy in another embodiment of the present application is disclosed;

[0030] Fig.10 Disclosed is a control voltage variation diagram of an electrochromic device in a preset control strategy in an embodiment of the present application;

[0031] Fig.11 A schematic flow chart of a control method for a preset control strategy in another embodiment of the present application is disclosed;

[0032] Fig.12 A structural block diagram of an implementation of an electronic device in an embodiment of the present application is disclosed;

[0033] Fig.13 A structural block diagram of an electronic device in another embodiment of the present application is disclosed.

[0034] Fig.14 A schematic diagram of the structure of an electronic device in an embodiment of the present application is disclosed.

[0035] Fig.15 and Fig.16 , respectively disclose a schematic diagram of an operating state of an electronic device in an embodiment of the present application;

[0036] Fig.17A structural block diagram of an implementation of an electronic device in an embodiment of the present application is disclosed;

[0037] Fig.18 A schematic diagram of the framework of an electronic device in an embodiment of the present application;

[0038] Fig.19 A schematic diagram of a computer-readable storage medium according to an embodiment of the present application is disclosed. DETAILED DESCRIPTION

[0039] The present application is further described in detail below in conjunction with the accompanying drawings and implementation methods. It is particularly noted that the following implementation methods are only used to illustrate the present application, but do not limit the scope of the present application. Similarly, the following implementation methods are only some implementation methods of the present application rather than all implementation methods. All other implementation methods obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0040] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0041] The present application describes a quality inspection method for an electrochromic device, which can be used to inspect the electrochromic device to confirm whether the electrochromic device is defective or defective; of course, it can also be used to inspect the electrochromic device installed in an electronic device.

[0042] As used herein, "electronic equipment" (which may also be referred to as "terminals" or "mobile terminals" or "electronic devices") include, but are not limited to, devices that are configured to receive / send communication signals via a wireline connection (e.g., via a public switched telephone network (PSTN), a digital subscriber line (DSL), digital cable, a direct cable connection, and / or another data connection / network) and / or via a wireless interface (e.g., for a cellular network, a wireless local area network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and / or another communication terminal). A communication terminal that is configured to communicate via a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular phones; personal communication system (PCS) terminals that may combine cellular radiotelephones with data processing, fax, and data communication capabilities; PDAs that may include radiotelephones, pagers, Internet / Intranet access, Web browsers, organizers, calendars, and / or global positioning system (GPS) receivers; and conventional laptop and / or palmtop receivers or other electronic devices that include radiotelephone transceivers. A mobile phone is an electronic device equipped with a cellular communication module.

[0043] See also Figure 1 , which discloses a flow chart of a quality detection method in an embodiment of the present application. The method may include:

[0044] Step S0101: obtaining a first open circuit voltage of the electrochromic device when a preset coloring strategy is completed, and obtaining a second open circuit voltage of the electrochromic device when a preset fading strategy is completed.

[0045] The electrochromic device may include a substrate layer, a conductive layer, a circuit wiring layer, a color-changing layer and an electrolyte layer, etc., and the edges are sealed by a frame sealant. Due to the multi-layer structure design of the electrochromic device, it is difficult to ensure that the structural properties of each layer are completely consistent in the industrial production of the electrochromic device, and the performance fluctuation of the multi-layer structure will affect the performance of the final product. Therefore, it is extremely complicated to judge whether the electrochromic device is defective or defective.

[0046] For example:

[0047] 1. The conductive layer, as the conductive substrate of the electrochromic device, affects the electric field and electron transmission during the color change (coloring or fading) process of the electrochromic device. If the resistance of the conductive layer is too high or too low, it will cause the color change to be too fast or too slow.

[0048] 2. As the color-changing unit in the electrochromic device, if the color-changing layer is too thick or too thin, on the one hand, the color depth of the color change will be inconsistent. On the other hand, because a thicker (or thinner) color-changing layer needs to be injected with more (or less) charges to make it change color, then under the same control voltage, the color change response time will also be inconsistent.

[0049] 3. If the electrolyte layer is too thick or too thin, the speed of ion transmission in the electrolyte will be inconsistent, which will also lead to inconsistent color change response time.

[0050] 4. The thickness of the circuit wiring layer is too thick or too thin, which makes the charge matching between the circuit wiring layer and the color-changing layer inconsistent, thus affecting the long-term reliability of the electrochromic device.

[0051] 5. In addition, since the circuit routing layer may involve metal routing and other circuits, the inconsistency of circuit resistance will also affect the color change performance of the electrochromic device.

[0052] Furthermore, electrochromic devices involve many factors that affect performance. Therefore, when testing the quality of electrochromic devices, it is impossible to accurately judge the electrochromic devices based on the structural performance of each layer, such as the substrate layer, conductive layer, circuit wiring layer, color-changing layer, and electrolyte layer. Furthermore, it is impossible to guarantee the color consistency of all electrochromic devices produced industrially. If the color consistency of the electrochromic device is poor, under the established preset control strategy, there may be problems such as incomplete coloring / fading or excessive coloring, which will also affect the color change performance or life of the electrochromic device.

[0053] For electrochromic devices, they can change color (color or fade) under the control of a control voltage. When a control voltage is applied to an electrochromic device, the coloring degree (or fading degree) of the electrochromic device can be made higher over time within a certain period of time. At the same time, the coloring open circuit voltage (or fading open circuit voltage) of the electrochromic device will also increase over time. In other words, the coloring degree (or fading degree) of the electrochromic device is positively correlated with the open circuit voltage of the electrochromic device. Therefore, the open circuit voltage of the electrochromic device can indirectly reflect the coloring degree (or fading degree) of the electrochromic device.

[0054] Here, the color change control experiment of the electrochromic device standard part can be carried out in advance, so as to plan a set of preset control strategies according to the experimental phenomena. In order to use the preset coloring strategy in the preset control strategy to control the open circuit voltage of the electrochromic device standard part, and make the electrochromic device standard part complete the coloring and reach the standard coloring degree. At the same time, the coloring open circuit voltage of the electrochromic device standard part can be obtained and used as the coloring voltage threshold. In order to use the preset fading strategy in the preset control strategy to control the open circuit voltage of the electrochromic device standard part, and make the electrochromic device standard part complete the fading and reach the standard fading degree. At the same time, the fading open circuit voltage of the electrochromic device standard part can be obtained and used as the fading voltage threshold.

[0055] In one embodiment, the coloring voltage threshold may be 450mV-650mV. That is to say, when an electrochromic device is colored after being controlled by a preset coloring strategy, if its first open circuit voltage is within the voltage range of 450mV-650mV, it indicates that the electrochromic device is qualified in the first open circuit voltage detection process, otherwise it is unqualified.

[0056] In one embodiment, the fading voltage threshold may be 600mV-700mV. That is, when an electrochromic device is faded after being controlled by a preset fading strategy, if its second open circuit voltage is within the voltage range of 600mV-700mV, it indicates that the electrochromic device is qualified in the second open circuit voltage detection process, otherwise it is unqualified.

[0057] In one embodiment, the electrochromic device is tested using the above method, and the monitoring data is shown in the following table (wherein, for the convenience of description, we define the fading open circuit voltage and the coloring open circuit voltage as absolute values ​​regardless of positive or negative):

[0058] serial number Transmittance of color changing layer Circuit trace absorbance First open circuit voltage The second open circuit voltage determination Sample 1 15％ 0.2 0.36 0.64 Failure Sample 2 15％ 0.25 0.43 0.61 Failure Sample 3 18％ 0.25 0.56 0.65 qualified

[0059] In one embodiment, the electrochromic device is tested using the above method, and the monitoring data is shown in the following table (wherein, for the convenience of description, we define the fading open circuit voltage and the coloring open circuit voltage as absolute values ​​regardless of positive or negative):

[0060] serial number Electrolyte layer thickness First open circuit voltage The second open circuit voltage determination Sample 4 10um 0.68 0.63 Failure Sample 5 20um 0.55 0.64 qualified Sample 6 30um 0.35 0.63 Failure

[0061] It can be understood that, based on the positive correlation between the coloring degree (or fading degree) of the electrochromic device and the open circuit voltage of the electrochromic device, when the open circuit voltage of the electrochromic device is controlled using the preset coloring strategy, the first open circuit voltage of the electrochromic device meets the coloring voltage threshold, indicating that the electrochromic device is a standard electrochromic device. When the open circuit voltage of the electrochromic device is controlled using the preset fading strategy, the second open circuit voltage of the electrochromic device meets the fading voltage threshold, indicating that the electrochromic device can be a standard electrochromic device.

[0062] Therefore, the first open circuit voltage and the second open circuit voltage can be used as indicators for detecting whether the electrochromic device is qualified.

[0063] In one embodiment, after the preset coloring strategy is completed, a first preset time period is required to obtain the first open circuit voltage of the electrochromic device.

[0064] In the process of applying control voltage to the electrochromic device to change color, since the coloring or fading process of the electrochromic device has a delayed property, the open circuit voltage detection of the electrochromic device immediately after the preset coloring strategy will not accurately reflect the current color change degree of the electrochromic device, and thus, under the wrong judgment, it will not be possible to accurately judge whether the electrochromic device is qualified.

[0065] However, by performing voltage delay detection on the electrochromic device after the first preset time interval, the open circuit voltage of the electrochromic device can be stabilized, thereby accurately knowing the current color change degree of the electrochromic device, and further accurately judging whether the electrochromic device is qualified.

[0066] Here, the first preset time length can be determined according to actual conditions, for example, the first preset time length can be 0.5s-15s, for example, 2s, 3s. Specifically, it can be adjusted as needed, as long as the open circuit voltage of the electrochromic device can be accurately detected.

[0067] Likewise, in one embodiment, the second open circuit voltage of the electrochromic device may be acquired with a delay at a second preset time interval after the preset fading strategy is completed.

[0068] Here, the second preset time length can be determined according to actual conditions, for example, the second preset time length can be 0.5s-15s, for example, 2s, 3s. Specifically, it can be adjusted as needed, as long as the open circuit voltage of the electrochromic device can be accurately detected. Of course, the second preset time length can also be consistent with the first preset time length.

[0069] Step S0102: If the first open circuit voltage meets the coloring voltage threshold, and the second open circuit voltage meets the fading voltage threshold, then a leakage detection is performed on the electrochromic device.

[0070] Here, when the first open circuit voltage meets the coloring voltage threshold and the second open circuit voltage meets the fading voltage threshold, the electrochromic device can be considered qualified in the preliminary test. However, for the electrochromic device, whether it can be used normally also involves its ability to maintain color change.

[0071] For electrochromic devices, in order to maintain the coloring state or the fading state, the open circuit voltage of the electrochromic device needs to be maintained within a certain voltage range. For example, a control voltage is applied to the electrochromic device, and the device is powered on to achieve coloring of the electrochromic device. Then, the open circuit voltage of the electrochromic device should be maintained at the coloring open circuit voltage. For example, a control voltage is applied to the electrochromic device, and the device is powered on to achieve fading of the electrochromic device. Then, the open circuit voltage of the electrochromic device should be maintained at the fading open circuit voltage.

[0072] For an electrochromic device, it is similar to a capacitor and is not completely insulated, so there is a certain value of natural leakage rate (also called "leakage rate"). Then, in the presence of natural leakage rate, the electrochromic device will not be able to maintain the open circuit voltage of the electrochromic device at the coloring (or fading) open circuit voltage after the control voltage is powered on.

[0073] When the electrochromic device is in the maintenance state, the longer the time is, the lower the open circuit voltage is. When the time is long enough, it will gradually transition to the neutral state (that is, the open circuit voltage is 0V). Therefore, the natural leakage rate determines the maintenance time of the electrochromic device, that is, the natural leakage rate can be used as a judgment indicator for the maintenance time of the electrochromic device.

[0074] Therefore, it is necessary to judge the maintenance ability of the electrochromic device, and the judgment can be made by measuring the leakage condition of the electrochromic device, such as measuring the natural leakage rate.

[0075] Here, a color change control experiment can be conducted on the electrochromic device standard part in advance, so as to obtain the leakage condition of the electrochromic device standard part according to the experimental phenomenon, and the leakage condition of the electrochromic device standard part can be used as the basis for judging other electrochromic devices.

[0076] Step S0103: If the leakage rate of the electrochromic device meets the leakage rate threshold, the electrochromic device is judged to be of qualified quality.

[0077] Here, a color change control experiment is conducted on the electrochromic device standard part in advance, and the leakage rate of the electrochromic device standard part is obtained according to the experimental phenomenon, and the leakage rate of the electrochromic device standard part can be used as a leakage rate threshold.

[0078] When the leakage rate of an electrochromic device meets the leakage rate threshold, it can be considered that the color change maintenance ability of this electrochromic device meets the requirements of the electrochromic device standard.

[0079] When the leakage rate of the electrochromic device that is preliminarily qualified in steps S0101 and S0102 also meets the leakage rate threshold, the electrochromic device can be judged to be of qualified quality.

[0080] In one embodiment, the leakage rate threshold can be lowered or raised according to one's own needs, which will not be described in detail here.

[0081] It can be seen that this detection scheme can ensure that the electrochromic devices leaving the factory have good color consistency, and prevent inconsistent appearance caused by inconsistent states of the electrochromic devices, as well as reliability risks such as excessive color change.

[0082] In one embodiment, see Figure 2 , which discloses a flow chart of a quality detection method in another embodiment of the present application. Step S0102 may include:

[0083] Step S0201: If the first open circuit voltage meets the coloring voltage threshold, and the second open circuit voltage meets the fading voltage threshold, the electrochromic device is colored using a preset coloring strategy.

[0084] Here, the first open circuit voltage meets the coloring voltage threshold, and the second open circuit voltage meets the fading voltage threshold, which means that the electrochromic device is initially judged to be qualified. Then, the leakage of the electrochromic device needs to be detected to further judge the electrochromic device.

[0085] Here, the electrochromic device is colored using a preset coloring strategy, and the open circuit voltage of the electrochromic device is the first open circuit voltage. The technical means of detecting at a certain interval can make the open circuit voltage of the electrochromic device leak from the first open circuit voltage. Then, the leakage of the electrochromic device can be characterized by detecting the open circuit voltage of the electrochromic device for a certain period of time. Of course, other solutions can also be used to determine the leakage of the electrochromic device.

[0086] Step S0202: after the preset coloring strategy is completed, a third open circuit voltage is obtained at a third preset time interval.

[0087] By measuring the third preset time interval, a third open circuit voltage of the electrochromic device during the third preset time interval can be measured, and the third open circuit voltage can be used to characterize the leakage condition of the electrochromic device.

[0088] Here, the third preset time length can be determined according to actual conditions, for example, the third preset time length can be 12h-72h, for example, 12h, 24h, 36h, 48h. Specifically, it can be adjusted as needed, as long as the leakage of the open circuit voltage of the electrochromic device can be accurately detected.

[0089] Step S0203: determining whether the third open circuit voltage meets a preset leakage voltage threshold.

[0090] Here, a color change control experiment can be performed on the electrochromic device standard in advance, so as to obtain the open circuit voltage change at the third preset time interval according to the experimental phenomenon, and use it as the preset leakage voltage threshold. Of course, the preset leakage voltage threshold can be adjusted according to demand, such as increasing or decreasing.

[0091] In one embodiment, the third preset time is 12 hours, and the preset leakage voltage threshold at this time is greater than 370 mV. When the third voltage of an electrochromic device is lower than 370 mV, it indicates that the leakage condition detection is unqualified, otherwise it is qualified.

[0092] In one embodiment, the third preset time is 24 hours, and the preset leakage voltage threshold at this time is greater than 320 mV. When the third voltage of an electrochromic device is lower than 320 mV, it indicates that the leakage condition detection is unqualified, otherwise it is qualified.

[0093] Accordingly, step S0103 may include:

[0094] Step S0204: If the third open circuit voltage meets the preset leakage voltage threshold, it is determined that the electrochromic device is of qualified quality.

[0095] In one embodiment, see Figure 3 , which discloses a flow chart of a quality detection method in another embodiment of the present application. Step S0102 may include:

[0096] Step S0301: If the first open circuit voltage meets the coloring voltage threshold, and the second open circuit voltage meets the fading voltage threshold, the electrochromic device is faded using a preset fading strategy.

[0097] For details, please refer to step S0201 and no further details will be given.

[0098] Step S0302: obtaining a fourth open circuit voltage at a fourth preset time interval after the preset fading strategy is completed.

[0099] For details, please refer to step S0201 and no further details will be given.

[0100] Here, the fourth preset time length can be determined according to actual conditions, for example, the fourth preset time length can be 12h-72h, for example, 12h, 24h, 36h, 48h. Specifically, it can be adjusted as needed, as long as the leakage of the open circuit voltage of the electrochromic device can be accurately detected. Of course, the fourth preset time length can also be the third preset time length.

[0101] Step S0303: determining whether the fourth open circuit voltage meets a preset leakage voltage threshold.

[0102] Here, a color change control experiment can be performed in advance according to the electrochromic device standard, so as to obtain the open circuit voltage change at the fourth preset time interval according to the experimental phenomenon, and use it as the preset leakage voltage threshold. Of course, the preset leakage voltage threshold can be adjusted according to demand, such as increasing or decreasing.

[0103] It is understandable that the color change maintenance capability of the electrochromic device can also be determined based on the difference between the second voltage and the fourth voltage. Of course, other solutions can also be used to determine the leakage of the electrochromic device.

[0104] Accordingly, step S0103 may include:

[0105] Step S0304: If the fourth open circuit voltage meets the preset leakage voltage threshold, it is determined that the electrochromic device is of qualified quality.

[0106] In one embodiment, see Figure 4 , which discloses a flow chart of a quality detection method in another embodiment of the present application. Before step S0101, the method may also include:

[0107] Step S0401: performing cyclic control of the electrochromic device using a preset control strategy.

[0108] Here, the preset control strategy may include a preset coloring strategy and a preset fading strategy. In step S0401, the electrochromic device is colored using the preset coloring strategy, and then faded using the preset fading strategy, and the coloring-fading process is repeated multiple times.

[0109] The purpose of repeatedly controlling the electrochromic device with a preset control strategy to achieve repeated color change is:

[0110] The electrochemical reaction between the color-changing layer and the electrolyte layer inside the electrochromic device is activated, so that the electrochromic device changes color stably and evenly. In addition, it should be noted that the initial color-changing ability of each electrochromic device is inconsistent during the factory production process. Through cycle control, the color-changing performance of the electrochromic device can be unified to meet the requirements of color consistency.

[0111] Furthermore, before performing step S0401, the open circuit voltage of the electrochromic device may be adjusted to 0V. For example, the open circuit voltage is adjusted to 0V by short-circuiting the electrochromic device. In this embodiment, before controlling the electrochromic device, the open circuit voltage of the electrochromic device may be 0V by short-circuiting the electrochromic device, so that when the open circuit voltage is 0V, the electrochromic device begins to be controlled to achieve coloring, or fading, or the conversion between the coloring state and the fading state, thereby improving the control accuracy of the electrochromic device and avoiding the problem of the electrochromic device being broken down due to the inability to identify that the electrochromic device is in the coloring state or the fading state due to operating errors.

[0112] The number of cycles here can be at least two, of course, can be determined as needed. In addition, the number of cycles can also be determined according to actual product experience in actual applications, for example, the number of cycles is adjusted to 10 times.

[0113] In one embodiment, see Figure 5 , which discloses a flow chart of a control method of a preset control strategy in an embodiment of the present application. The preset control strategy may include:

[0114] Step S0501: obtaining the temperature of the electrochromic device.

[0115] In one embodiment, see Figure 6 , which discloses a flow chart of a method for detecting the temperature of an electrochromic device in an embodiment of the present application. The specific steps are as follows:

[0116] Step S0601: collecting a temperature value at at least one position of the electrochromic device.

[0117] In this embodiment, the temperature value of a position on the electrochromic device can be collected, and the temperature value of a position adjacent to the electrochromic device can also be collected. Of course, at least one temperature distributed on the electrochromic device and / or at different positions adjacent to the electrochromic device can also be collected. When the electrochromic device is set on an electronic device, the positions where the temperature value can be measured can be different positions on the main board, different positions on the electrochromic device, or different positions on the middle frame. Optionally, the position in contact with the electrochromic device can be measured to detect the temperature of the electrochromic device or its adjacent position. Of course, the temperature value of the position in contact with the electrochromic device can also be not measured.

[0118] Here, a temperature sensor can be used to measure the temperature value. For example, the temperature sensor can be set at a position in contact with the electrochromic device so as to detect the temperature of the electrochromic device or its adjacent position. Of course, it can also not be set at the contact position with the electrochromic device. It can be understood that when the temperature sensor and the electrochromic device are set on an electronic device, the temperature sensor can at least be used to detect the temperature value of the electrochromic device of the electronic device or its vicinity. Of course, the temperature value of the battery, camera module, processor, etc. or its vicinity can also be detected at the same time. Here, the measured temperature value can be used as the temperature of the electrochromic device. The specific measurement method may include setting a temperature sensor or a thermistor at the electrochromic device, battery, camera module, etc. of the electronic device or its adjacent area.

[0119] For example, a negative temperature coefficient thermistor, or NTC resistor, is set near the electrochromic device, battery, or camera module, and its signal is connected to the central processing unit (also called "processor") of the electronic device. Since the resistance of the NTC resistor is inversely proportional to the temperature, it will decrease with high temperature and increase with low temperature, and the temperature coefficient is very large, it can be used to detect small temperature changes with high accuracy. According to the characteristics of the NTC resistor, the NTC can generate different NTC resistor voltages under different temperature environments; the current temperature value of the electrochromic device and its adjacent area is determined by detecting the voltage value of the negative temperature coefficient thermistor.

[0120] It is understandable that the temperature here can be a historical temperature, a current temperature (a temperature measured in real time), or a predicted temperature. The temperature can be adaptively adjusted according to specific circumstances.

[0121] Step S0602: Calculate the average value of the temperature values.

[0122] In this step, the collected temperature values ​​of the temperature sensor of the electrochromic device are averaged to obtain an average value of the temperature values.

[0123] Step S0603: taking the average value as the temperature of the electrochromic device.

[0124] In this embodiment, by calculating the average temperature of multiple locations of the electrochromic device, the temperature of the electrochromic device can be obtained more accurately and comprehensively than the prior art which only uses the temperature value of one location of the electrochromic device to make a judgment, thereby making the control process of the electrochromic device more accurate.

[0125] Step S0502: Determine a control voltage and a control time that have a preset corresponding relationship with the temperature.

[0126] Electrochromic devices achieve color change (coloring and fading) by applying voltage, and electrochromic devices have different response times at different temperatures and voltages.

[0127] The efficiency of electrolyte mass transfer will increase due to excessive temperature and voltage, and the efficiency of charge transfer will be improved accordingly, which will speed up the reaction. Therefore, when the temperature of the electrochromic device is too high, a shorter control time and a lower control current are sufficient to meet the needs of charge and reaction. However, setting too high a voltage and too long a charging time will affect the service life of the electrochromic device due to overcharging. In addition, excessive voltage will cause instantaneous current to damage the electrochromic device to a certain extent. Furthermore, the efficiency of electrolyte mass transfer will decrease due to lower temperature, and both mass transfer and conduction efficiency will decrease, which will make the response time too long. Therefore, it is necessary to determine the corresponding voltage and response time for different temperatures. In order to be more efficient, safe and accurate when activating the electrochemical reaction between the color-changing layer and the electrolyte layer inside the electrochromic device, and avoid damage to the electrochromic device.

[0128] Step S0503: applying a control voltage to the electrochromic device within the control time, so that the electrochromic device completes coloring or fading.

[0129] In this embodiment, according to the determined control time and control voltage, an instruction is sent to the execution device to apply the control voltage to the electrochromic device, control the time, complete the coloring or fading of the electrochromic device, and then complete the activation of the electrochemical reaction between the color-changing layer and the electrolyte layer inside the electrochromic device. Among them, completing the coloring is the preset coloring strategy mentioned above. Completing the fading is the preset fading strategy mentioned above.

[0130] In one embodiment, see Figure 7 , which discloses a flow chart of a control method for a preset control strategy in another embodiment of the present application. Step S0502 may include:

[0131] Step S0701: when the temperature is within a preset temperature range, determining a temperature division interval of the temperature within the preset temperature range.

[0132] Electrochromic devices achieve color change (coloring and fading) by applying voltage, and electrochromic devices have different response times at different temperatures and voltages. When the temperature is too high, it will cause harm to the color-changing material layer of the electrochromic device during the coloring or fading process. Therefore, when the electrochemical reaction inside the electrochromic device is activated, it is necessary to change the color or fade the electrochromic device at a temperature that does not cause irreversible harm to the electrochromic device. The preset temperature range can be defined as a temperature that does not cause irreversible harm to the electrochromic device when coloring or fading. In one embodiment, the preset temperature range can be -15°C-85°C, and of course the preset temperature range can also be adjusted on this basis, for example, it can be adjusted to -25°C-100°C. It can be understood that the specific values ​​of the preset temperature range listed here are only for illustrating the beneficial effects of setting the preset temperature range, and the preset temperature range is not specifically limited.

[0133] For example, in industrial production, the normal temperature environment of the production plant of electrochromic devices is 22-25°C, so the plant temperature can also be used as the temperature of the electrochromic device.

[0134] Therefore, the preset temperature range can be divided, and the voltage and response time corresponding to each temperature division interval can also be determined, for example, by measuring through relevant experiments.

[0135] Since temperature has a great influence on the mass transfer efficiency of the electrolyte in the color-changing material layer, the first temperature division interval and the second temperature division interval, which are both temperature division intervals within the preset temperature range, can apply a lower control voltage to the first temperature division interval with a higher temperature, while applying a higher control voltage to the second temperature division interval with a lower temperature, while maintaining the same control time of the electrochromic device; while maintaining the same control voltage of the electrochromic device, the first temperature division interval with a higher temperature can apply less control time, while applying more control voltage to the second temperature division interval with a lower temperature. It can be understood that different control voltages and different control times can also be set at the same temperature as needed.

[0136] In one embodiment, corresponding experimental data are obtained through relevant experimental measurements, wherein for the convenience of description, we define the fading voltage as positive and the coloring voltage as negative. The comparison table of temperature division, voltage and response time is as follows:

[0137]

[0138] It can be understood that the temperature division interval, control voltage, and control time in this comparison table can be adjusted according to actual conditions. Based on the properties of the electrolyte itself, the electrolyte has certain requirements for the upper limit of the control voltage. Exceeding the value may cause the electrolyte to produce an irreversible reaction, and the upper limit of the electrolyte's normal temperature experience value is 1.6V, so the control voltages in the comparison table are all lower than 1.6V. In addition, the voltage power required for the electrochemical reaction of the electrochromic device to change color: this can be understood as the lower limit value of the control voltage that needs to be applied. At room temperature, it is generally impossible to achieve complete coloring and fading of the electrochromic device if it is lower than 0.7V. Therefore, the control voltages in the comparison table are all higher than 0.7V. That is, the control voltage can be controlled at 0.7V-1.6V.

[0139] In addition, in the second temperature division interval, the third temperature division interval, the fourth temperature division interval and the fifth temperature division interval of this comparison table, it can be seen that as the temperature increases, the control time will decrease accordingly. Therefore, when the control voltage is consistent, within the entire preset temperature range, as the temperature increases, the control time will decrease accordingly. Similarly, when the control time is consistent, as the temperature increases, the control voltage will also decrease accordingly. And accordingly, when the temperature is consistent, the control voltage is adjusted, and the control time will change with the adjustment of the control voltage, for example, as the control voltage increases, the control time will decrease accordingly. For example, as the control time increases, the control voltage will decrease accordingly.

[0140] In this way, different control voltages can be applied to the electrochromic device at different temperatures and the same control time to achieve coloring or fading. Different control voltages can be applied to the electrochromic device at different temperatures and the same control time to achieve coloring or fading. Different control voltages can be applied to the electrochromic device at the same temperature to achieve coloring or fading within different control times. This can activate the electrochemical reaction inside the electrochromic device. This ensures the color consistency of the electrochromic device.

[0141] Step S0702: Determine a control voltage and a control time that have a preset corresponding relationship with the temperature division intervals.

[0142] In one embodiment, data indexing can be performed in a comparison table obtained by experimental measurement in advance, and the control time and control time can be determined. For example, according to the above comparison table, it can be known that when the temperature is in the first temperature division interval, the control voltage is ±0.8V, and the control time is 5s, that is, a 0.8V voltage is applied to the electrochromic device for 0.5s to change color, and the coloring can be completed. When fading, the voltage electrode can be changed, and a 0.8V voltage is applied again for 0.5s to fade, and the fading can be completed.

[0143] In one implementation, see Figure 8, which discloses a flow chart of a control method for a preset control strategy in another embodiment of the present application. Step S0502 may include:

[0144] Step S0801: Determine a control time having a preset corresponding relationship with the temperature, and a first control voltage and a second control voltage having a preset corresponding relationship with the temperature and the control time.

[0145] The first control voltage is used to drive the electrochromic device to color, and the second control voltage is used to drive the electrochromic device to fade. In one embodiment, the first control voltage may be equal to the second control voltage. In one embodiment, the first control voltage may not be equal to the second control voltage.

[0146] In one embodiment, since the fading time of the electrochromic device is slower than the coloring time, the first control voltage may not be equal to the second control voltage at the same temperature and the same control time. In this embodiment, multiple control times and multiple control voltages corresponding to the multiple control times can be determined according to the temperature, so that multiple controls of the electrochromic device can be realized. This can achieve the same time for the electrochromic device to fade or color.

[0147] After step S0801, step S0503 may perform detection and when it is detected that the current electrochromic device needs to be colored, step S0802 is executed: applying a first control voltage to the electrochromic device within a control time to enable the electrochromic device to complete coloring.

[0148] In step S0802, it can be ensured that the coloring time of the electrochromic device is consistent with the subsequent fading time.

[0149] After step S0801, step S0503 may be performed to detect and when it is detected that the current electrochromic device needs to fade, step S0803 is executed: a second control voltage is applied to the electrochromic device within the control time to make the electrochromic device complete the fading.

[0150] In step S0803, it can be ensured that the fading time of the electrochromic device is consistent with the previous coloring time.

[0151] In one embodiment, see Fig. 9 , which discloses a flow chart of a control method for a preset control strategy in another embodiment of the present application. Step S0503 includes:

[0152] Step S0901: applying a first voltage to the electrochromic device within a first time period, and the first voltage increases from an initial voltage to a control voltage within the first time period.

[0153] Electrochromic devices change color or fade when a control voltage is applied. However, a single constant control voltage is relatively direct and drastic when changing or fading the electrochromic device, resulting in no transition during the change process, which in turn affects the service life of the electrochromic device. Furthermore, in order to meet the demand for fast response time, a single constant control voltage is generally large in value. In this case, it is easy to have obvious uneven coloring / fading (the coloring and fading is faster near the metal wiring and binding positions, and slower at farther positions), which has a very poor appearance for the electrochromic device.

[0154] Therefore, when controlling the electrochromic device, a certain voltage transition time can be given, that is, a first voltage lower than the control voltage is selected and applied to the electrochromic device, and gradually increases and increases to the control voltage within the first time period. In this way, the obvious coloring or fading unevenness of the electrochromic device can be solved. Then, the internal electrochemical reaction activation of the electrochromic device before leaving the factory is successfully completed.

[0155] In one embodiment, the first voltage may be increased in a stepwise or linear manner. Fig.10 , which discloses a control voltage change diagram of an electrochromic device in a preset control strategy in an embodiment of the present application. In the figure, the vertical axis is the voltage value (abs. represents the absolute value, the voltage can be positive or negative, corresponding to the two states of fading and coloring respectively), and the horizontal axis is time. The first time period (A) and the second time period (B, C) are three power-on stages artificially divided for the convenience of description. In the initial stage of the change (the first time period (A)), three aspects are considered:

[0156] First, the voltage value (i.e., the first voltage) needs to be set to ensure visual uniformity of the color change process (this requires a closer time interval and a smaller voltage value);

[0157] Second, the step setting values ​​(i.e., the determination of the incremental method) in the initial stage must all meet the voltage requirements for the electrochromic device to change color;

[0158] Third, the total response time (control time) should not be too long (the time of the first time period (A) should not be too long).

[0159] The three considerations together determine that the initial voltage value is small, but the rate of voltage change is fast. The number of time intervals corresponding to the voltage change is large, but the total duration of the first time period (A) is short. Fig.10In the figure, it can be seen that the first voltage applied to the electrochromic device is 0.6V, and a step-by-step increase method is adopted, with each step increasing by 0.1V, 6 steps, and the first time period can be 2s, and 0.6V increases to 1.2V within 2s. Of course, a linear increase method can also be adopted, for example, the increase rate is 0.1V / s. It can be understood that based on the above control voltage control at 0.7V-1.6V, it can be determined that the range of the first voltage can be 0-0.7V, of course, it can also be 0.7-1.2V, but excluding 1.2V. And the first time period can be 0-4S.

[0160] Step S0902: keep applying the control voltage to the electrochromic device during the second time period, so that the electrochromic device completes coloring or fading.

[0161] The total duration of the first time period and the second time period is the control time. After the first voltage increases to the control voltage, conventional control can be performed until the electrochromic device completes coloring or fading. Fig.10 The second time period (B, C) can be completed by performing conventional control.

[0162] It can be understood that the preset coloring strategy and the preset fading strategy can be implemented through steps S0901 and S0902.

[0163] In one embodiment, see Fig.11 , which discloses a flow chart of a control method for a preset control strategy in another embodiment of the present application. Step S0902 in the control method may include:

[0164] Step S1001: applying a second voltage to the electrochromic device within a third time period, wherein the second voltage increases from a control voltage to a preset mutation voltage and then decreases to the control voltage within the third time period, so as to shorten the control time.

[0165] Since the electrochromic device uses the first voltage in the previous step S0901 and increases it to the control voltage in an incremental manner, the visual unevenness of the subsequent application of the control voltage has been significantly reduced. Therefore, a larger voltage is used for charging in this subsequent stage to achieve a complete change in color.

[0166] The previous step S0901 uses an incremental method to extend the control time, so it is necessary to compensate for the negative impact of the extended response time brought about by the previous step to a certain extent. The present application sets a short-term preset sudden high voltage in the third time period to accelerate the electrolyte mass transfer efficiency of the color-changing material layer, thereby restoring the entire response time to the original control time. The third time period is a time period within the second time period.

[0167] See also Fig.10In the first part of the second time period (B), the initial state of coloring and fading of the electrochromic device is basically achieved. The visual unevenness of the subsequent control voltage has been significantly reduced. Therefore, a larger voltage is used for charging at this stage to achieve a complete change in color. That is, at the end of the second time period (B) (i.e., the third time period (D)), a short preset mutation voltage is set to compensate for the negative impact of the extended response time brought about by the overall control of the first time period (A) to a certain extent. Fig.10 In the example, the same increasing method as in the first time period (A) can be adopted, for example, the control voltage is 1.2V, and a step-by-step increasing method is adopted, each step increases by 0.1V, 2 steps, and the preset mutation voltage is 1.4V. The second time period can be 1s, and 1.2V increases to 1.4V after 0.5s, and 1.4V decreases to 1.2V after 1s. Of course, a linear increasing method can also be adopted, for example, the increasing rate is 0.1V / s. It can be understood that based on the above control voltage being controlled at 0.7V-1.6V, it can be determined that the range of the preset mutation voltage can be 1.2-1.6V, and of course, it can also be 0.7-1.2V. The specific preset mutation voltage can be determined according to the total length of the control time.

[0168] Step S1002: keep applying the control voltage to the electrochromic device during other time periods of the second time period, so that the electrochromic device completes coloring or fading.

[0169] Finally, the constant control voltage is continued to be used to charge the electrochromic device at a constant voltage to ensure that the voltage value is stable within a reasonable use range. The uniform color change or fading of the electrochromic device is achieved, so that the cover assembly and electronic equipment using the electrochromic device have improved appearance.

[0170] See also Fig.10 Finally, in the second time period (C), the electrochromic device is again charged at a constant voltage of 1.2V to ensure that the voltage value is stable within a reasonable usage range to complete the coloring or fading of the electrochromic device.

[0171] It can be understood that the preset coloring strategy and the preset fading strategy can be implemented through steps S0901, S1001, and S1002.

[0172] See also Fig.12 , which discloses a structural block diagram of an electronic device in an embodiment of the present application. The electronic device can be installed with an electrochromic device that has been tested by the above-mentioned detection method, and of course can also be used as an electronic device to be tested by the above-mentioned method.

[0173] The electronic device 300 may include a middle frame (not shown), a display module (not shown), a control circuit 301, and a cover assembly 200 (the electrochromic device 100 and the cover are stacked). Specifically, the middle frame and the cover assembly 200 are assembled into a housing, and the cover is arranged on a side of the electrochromic device 100 away from the middle frame. An accommodation space is arranged inside the housing, that is, the middle frame and the cover are fixedly connected to form an accommodation space.

[0174] The housing is used to carry the display module and the control circuit 301. The control circuit 301 is coupled to the electrochromic device 100 of the cover assembly 200, and the control circuit 301 is used to receive control instructions, which are used to control the electrochromic device 100 to change color. Of course, the housing space of the housing can also be used to accommodate batteries, motherboards 306 (see Fig.13 ), processors (the processor can be set on the mainboard 306), various types of sensors (sensors can also be set on the mainboard 306 and other positions in the accommodation space, such as temperature sensors) and other electronic parts. In one embodiment, the display module and the cover assembly 200 are respectively located on two opposite sides of the middle frame and are fixedly connected to the middle frame, and the electrochromic device 100 is closer to the display module than the cover.

[0175] It can be understood that in the electronic device 300, the main board 306 is the main hardware, so the control circuit 301 can be set on the main board 306, and the main board 306 can be electrically connected (also can be said to be coupled) to the electrochromic device 100 through a flexible circuit board.

[0176] In one embodiment, see Fig.13 , which discloses a block diagram of the structure of an electronic device 300 in another embodiment of the present application. Different from the previous embodiment, the electronic device 300 in this embodiment also includes a signal input device 302, wherein the signal input device 302 is coupled to the control circuit 301. Specifically, the control circuit 301 is used to receive a control instruction input through the signal input device 302, and control the working state of the electrochromic device 100 according to the control instruction. Among them, the working state of the electrochromic device 100 includes controlling the change of its voltage or current signal state to achieve the purpose of controlling the color change (coloring or fading state) of the electrochromic device 100. Among them, the signal input device 302 may include a touch display screen 303 (also referred to as a display module), an operation key 304, a trigger sensor 305, etc.

[0177] Optionally, see Fig.14, which discloses a schematic diagram of the structure of an electronic device 300 in an embodiment of the present application, wherein the signal input device 302 may be a touch display screen 303 (i.e., the display module in the above embodiment), and the control instruction input by the signal input device 302 may be a touch operation received by the touch display screen 303, including at least one of sliding, clicking, and long pressing, see Fig.15 and Fig.16 , respectively disclose a schematic diagram of an operating state of an electronic device 300 in an embodiment of the present application. Among them, Fig.15 In the figure, it can be represented as an operator (the reference numeral 307 in the figure can be represented as the operator's hand) inputting a control instruction by sliding the touch screen 303; and Fig.16 The state in may indicate that the operator inputs a control instruction by clicking or long pressing a chart or a specific position on the touch display screen 303 .

[0178] In one embodiment, please continue to refer to Fig.13 The signal input device 302 can be an operation key 304, and the control instruction can also be a trigger instruction of the operation key 304, wherein the operation key 304 can be a separate key, or it can be multiplexed with other function keys of the electronic device 300, such as a power key, a volume key, etc., and different control instructions received by the control circuit 301 are defined according to different key triggering modes, so that the control circuit 301 can realize different signal control of the electrochromic device 100.

[0179] For further information, please refer to Fig.13 The signal input device 302 may be a trigger sensor 305, wherein the trigger sensor 305 may be a proximity sensor, a temperature sensor, an ambient light sensor, etc. The trigger sensor 305 collects peripheral signals of the electronic device 300 and controls the shell to change the appearance color through the control circuit 301.

[0180] Further, the electronic device 300 may include a voltage detection module, which is installed in the accommodation space and is used to obtain the open circuit voltage of the electrochromic device 100. For example, it is used to obtain the first open circuit voltage of the electrochromic device 100 when the preset coloring strategy is completed, to obtain the second open circuit voltage of the electrochromic device 100 when the preset fading strategy is completed, to obtain the third open circuit voltage of the electrochromic device 100 when the leakage condition is detected, etc.

[0181] The processor is used to determine whether the first open circuit voltage meets the coloring voltage threshold and whether the second open circuit voltage meets the fading voltage threshold, and is used to determine that the electrochromic device 100 is of qualified quality when the third open circuit voltage meets the preset leakage voltage threshold.

[0182] Furthermore, the voltage detection module is the sensor in the above embodiment.

[0183] Furthermore, the processor is used to fade the electrochromic device 100 using a preset fading strategy, to determine whether the difference in the fourth open circuit voltage meets a preset leakage voltage threshold, and to determine that the electrochromic device 100 is of qualified quality when the fourth open circuit voltage meets the preset leakage voltage threshold.

[0184] The voltage detection module is used to obtain a fourth open circuit voltage at a fourth preset time interval after the preset fading strategy is completed.

[0185] Furthermore, the processor is used to perform a preset control strategy cyclic control on the electrochromic device 100 , where the preset control strategy includes a preset coloring strategy and a preset fading strategy.

[0186] Furthermore, the processor is used to control the electrochromic device 100 to adopt a preset coloring strategy and a preset fading strategy in sequence, and to cycle the control multiple times.

[0187] Furthermore, the processor is used to adjust the open circuit voltage of the electrochromic device 100 to 0V, and is used to short-circuit the electrochromic device 100 to adjust the open circuit voltage to 0V.

[0188] Furthermore, the electronic device 300 may include a temperature detection module, which is installed in the accommodation space and is used to obtain the temperature of the electrochromic device 100 and / or the electronic device 300 .

[0189] Furthermore, the temperature detection module is used to obtain the temperature of the electrochromic device 100 .

[0190] The processor is used to determine a control voltage and a control time that have a preset corresponding relationship with the temperature, and is used to apply a control voltage to the electrochromic device 100 within the control time so that the electrochromic device 100 completes coloring or fading.

[0191] Furthermore, the processor is used to determine a temperature division interval within the preset temperature range when the temperature is within the preset temperature range, and to determine a control voltage and a control time having a preset corresponding relationship with the temperature division interval.

[0192] Furthermore, the processor is used to determine a control time having a preset corresponding relationship with the temperature and a first control voltage and a second control voltage having a preset corresponding relationship with the temperature and the control time; the first control voltage is used to drive the electrochromic device 100 to color, and the second control voltage is used to drive the electrochromic device 100 to fade.

[0193] The processor is used to apply a first control voltage to the electrochromic device 100 within the control time so that the electrochromic device 100 completes coloring. Alternatively, the processor is used to apply a second control voltage to the electrochromic device 100 within the control time so that the electrochromic device 100 completes fading.

[0194] Further, the processor is used to apply a first voltage to the electrochromic device 100 in a first time period, and the first voltage increases from an initial voltage to a control voltage in the first time period; and is used to keep applying the control voltage to the electrochromic device 100 in a second time period, so that the electrochromic device 100 completes coloring or fading, and the total duration of the first time period and the second time period is the control time. The first voltage increases from the initial voltage to the control voltage in a stepwise or linear manner in the first time period.

[0195] Furthermore, the processor is used to apply a second voltage to the electrochromic device 100 within a third time period, and the second voltage increases from the control voltage to a preset mutation voltage and then decreases to the control voltage within the third time period to shorten the control time. The third time period is a time period within the second time period; the processor is used to maintain the application of the control voltage to the electrochromic device 100 during other time periods of the second time period so that the electrochromic device 100 completes coloring or fading.

[0196] See also Fig.17 , which discloses a structural block diagram of an electronic device in an embodiment of the present application. The electronic device 400 can be used to perform the above detection method to detect the electrochromic device or the electrochromic device installed in the electronic device. The electronic device 400 may include a processor 401 and a detection module 402 electrically connected to each other, wherein the detection module 402 may include a voltage detection module 4021 and a temperature detection module 4022.

[0197] Wherein, the detection module 402 is used to obtain a first open circuit voltage of the electrochromic device when a preset coloring strategy is completed, and to obtain a second open circuit voltage of the electrochromic device when a preset fading strategy is completed, and to perform leakage detection on the electrochromic device when the first open circuit voltage meets the coloring voltage threshold and the second open circuit voltage meets the fading voltage threshold; and

[0198] Processor 401 is used to determine whether the first open circuit voltage meets the coloring voltage threshold and whether the second open circuit voltage meets the fading voltage threshold, to determine whether the leakage rate of the electrochromic device meets the leakage rate threshold, and to determine that the electrochromic device is of qualified quality when the leakage rate of the electrochromic device meets the leakage rate threshold.

[0199] Furthermore, the voltage detection module 4021 is used to obtain a first open circuit voltage at a first preset time interval after the preset coloring strategy is completed.

[0200] Furthermore, the voltage detection module 4021 is used to obtain a second open circuit voltage at a second preset time interval after the preset fading strategy is completed.

[0201] Furthermore, the processor 401 is used to color the electrochromic device using a preset coloring strategy, to determine whether the third open circuit voltage meets the preset leakage voltage threshold, and to determine that the electrochromic device is of qualified quality when the third open circuit voltage meets the preset leakage voltage threshold.

[0202] The voltage detection module 4021 is used to obtain a third open circuit voltage at a third preset time interval after the preset coloring strategy is completed.

[0203] Furthermore, processor 401 is used to fade the electrochromic device using a preset fading strategy, to determine whether the difference in the fourth open circuit voltage meets a preset leakage voltage threshold, and to determine that the electrochromic device is of qualified quality when the fourth open circuit voltage meets the preset leakage voltage threshold.

[0204] The voltage detection module 4021 is used to obtain a fourth open circuit voltage after a fourth preset time interval after the preset fading strategy is completed, and to determine that the electrochromic device is of qualified quality when the leakage rate of the electrochromic device meets the leakage rate threshold.

[0205] Furthermore, the processor 401 is used to perform a preset control strategy cyclic control on the electrochromic device, where the preset control strategy includes a preset coloring strategy and a preset fading strategy.

[0206] Furthermore, the processor 401 is used to control the electrochromic device by sequentially adopting a preset coloring strategy and a preset fading strategy, and to perform the control in a cycle for multiple times.

[0207] Further, the processor 401 is used to adjust the open circuit voltage of the electrochromic device to 0V.

[0208] Furthermore, the processor 401 is used to short-circuit the electrochromic device and adjust the open circuit voltage to 0V.

[0209] Furthermore, the temperature detection module 4022 is used to obtain the temperature of the electrochromic device.

[0210] The processor 401 is used to determine a control voltage and a control time that have a preset corresponding relationship with the temperature, and is used to apply a control voltage to the electrochromic device within the control time so that the electrochromic device completes coloring or fading.

[0211] Further, the processor 401 is used to determine the temperature division interval of the temperature within the preset temperature range when the temperature is within the preset temperature range, and to determine the control voltage and control time having a preset corresponding relationship with the temperature division interval.

[0212] Furthermore, the processor 401 is used to determine a control time having a preset corresponding relationship with the temperature and a first control voltage and a second control voltage having a preset corresponding relationship with the temperature and the control time; the first control voltage is used to drive the electrochromic device to color, and the second control voltage is used to drive the electrochromic device to fade.

[0213] The processor 401 is used to apply a first control voltage to the electrochromic device within a control time, so that the electrochromic device completes coloring.

[0214] Alternatively, the processor 401 is configured to apply a second control voltage to the electrochromic device within the control time, so that the electrochromic device completes fading.

[0215] Further, the processor 401 is used to apply a first voltage to the electrochromic device within a first time period, the first voltage increases from an initial voltage to a control voltage within the first time period, and the first voltage increases from the initial voltage to the control voltage in a stepwise or linear manner within the first time period.

[0216] The processor 401 is used to keep applying the control voltage to the electrochromic device during the second time period so that the electrochromic device completes coloring or fading. The total duration of the first time period and the second time period is the control time.

[0217] Furthermore, the processor 401 is used to apply a second voltage to the electrochromic device within a third time period, and the second voltage increases from the control voltage to a preset mutation voltage and then decreases to the control voltage within the third time period to shorten the control time. The third time period is a time period within the second time period.

[0218] The processor 401 is used to keep applying the control voltage to the electrochromic device during other time periods of the second time period, so that the electrochromic device completes coloring or fading.

[0219] The following is an explanation of an electronic device that can be applied to the above control method. Fig.18 , which is a schematic diagram of the framework of an electronic device in an embodiment of the present application. The electronic device 500 may include a processor 501 and a memory 502. The memory 502 stores a computer program, which, when executed by the processor 501, is used to implement the control method in any of the above embodiments.

[0220] Specifically, the processor 501 controls the operation of the electronic device 500, and the processor 501 may also be referred to as a CPU (Central Processing Unit). The processor 501 may be an integrated circuit chip having the ability to process signals. The processor 501 may also be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0221] The memory 502 is used to store the program data executed by the processor 501 and the data in the processing process of the processor 501, wherein the memory 502 may include a non-volatile storage part for storing the above program data. In another embodiment, the memory 502 may only be used as the memory of the processor 501 to cache the data in the processing process of the processor 401, and the program data is actually stored in a device outside the processor 501. The processor 501 is connected to the external device and calls the program data stored externally to perform the corresponding processing.

[0222] Next, a computer-readable storage medium is described. Fig.19 , which discloses a schematic diagram of a computer-readable storage medium of an embodiment of the present application. The computer-readable storage medium 600 stores a computer program 601, and the computer program 601 implements the above control method when executed by a processor.

[0223] The computer-readable storage medium 600 may specifically be a medium that can store program instructions, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, or may be a server that stores the program instructions. The server may send the stored program instructions to other devices for execution, or may execute the stored program instructions by itself.

[0224] In one embodiment, the computer readable storage medium 600 may also be Fig.18 Memory 502 is shown.

[0225] In the several embodiments provided in this application, it should be understood that the disclosed methods and devices can be implemented in other ways. For example, the device implementation described above is only illustrative, for example, the division of modules or units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.

[0226] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0227] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0228] The above description is only part of the implementation methods of the present application, and does not limit the protection scope of the present application. Any equivalent device or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A quality inspection method for an electrochromic device, characterized in that: include: Acquiring a first open circuit voltage of the electrochromic device when a preset coloring strategy is completed, and acquiring a second open circuit voltage of the electrochromic device when a preset fading strategy is completed; If the first open circuit voltage meets the coloring voltage threshold, and the second open circuit voltage meets the fading voltage threshold, then the electrochromic device is tested for leakage; If the leakage rate of the electrochromic device meets the leakage rate threshold, the electrochromic device is judged to be of qualified quality.

2. The method according to claim 1, characterized in that The obtaining of a first open circuit voltage of the electrochromic device when a preset coloring strategy is completed includes: The first open circuit voltage is obtained at an interval of a first preset time after the preset coloring strategy is completed.

3. The method according to any one of claims 1 to 2, characterized in that: The obtaining of the second open circuit voltage of the electrochromic device when the preset fading strategy is completed includes: The second open circuit voltage is obtained at a second preset time interval after the preset fading strategy is completed.

4. The method according to any one of claims 1 to 2, characterized in that: The detecting of leakage current of the electrochromic device comprises: Coloring the electrochromic device using the preset coloring strategy; After the preset coloring strategy is completed, a third open circuit voltage is obtained at a third preset time interval; Determining whether the third open circuit voltage meets a preset leakage voltage threshold; If the leakage rate of the electrochromic device meets the leakage rate threshold, determining that the electrochromic device is of qualified quality includes: If the third open-circuit voltage meets the preset leakage voltage threshold, the electrochromic device is determined to be of qualified quality.

5. The method according to any one of claims 1-2, characterized in that: The detecting of leakage current of the electrochromic device comprises: Fading the electrochromic device using the preset fading strategy; After the preset fading strategy is completed, a fourth open circuit voltage is obtained at a fourth preset time interval; Determining whether the difference of the fourth open circuit voltage meets a preset leakage voltage threshold; If the leakage rate of the electrochromic device meets the leakage rate threshold, determining that the electrochromic device is of qualified quality includes: If the fourth open-circuit voltage meets the preset leakage voltage threshold, it is determined that the electrochromic device is of qualified quality.

6. The method according to claim 1, characterized in that Before obtaining the first open circuit voltage of the electrochromic device when the preset coloring strategy is completed, and obtaining the second open circuit voltage of the electrochromic device when the preset fading strategy is completed, the method further includes: The electrochromic device is subjected to a preset control strategy cycle control, wherein the preset control strategy includes the preset coloring strategy and the preset fading strategy.

7. The method according to claim 6, characterized in that The step of performing a preset control strategy cyclic control on the electrochromic device comprises: The electrochromic device is controlled by using the preset coloring strategy and the preset fading strategy in sequence, and the control is repeated multiple times.

8. The method according to any one of claims 6-7, characterized in that: Before performing a preset control strategy cycle control on the electrochromic device, the method further includes: The open circuit voltage of the electrochromic device is adjusted to 0V.

9. The method according to claim 8, characterized in that The step of adjusting the open circuit voltage of the electrochromic device to 0V comprises: The electrochromic device is short-circuited and the open circuit voltage is adjusted to 0V.

10. The method according to any one of claims 6-7, characterized in that: The preset control strategy includes: Acquiring the temperature of the electrochromic device; Determining a control voltage and a control time having a preset corresponding relationship with the temperature; The control voltage is applied to the electrochromic device within the control time, so that the electrochromic device completes coloring or fading.

11. The method according to claim 10, characterized in that The determining of a control voltage and a control time having a preset corresponding relationship with the temperature includes: When the temperature is within a preset temperature range, determining a temperature division interval of the temperature within the preset temperature range; The control voltage and the control time having a preset corresponding relationship with the temperature division interval are determined.

12. The method according to claim 10, characterized in that The determining of a control voltage and a control time having a preset corresponding relationship with the temperature includes: Determine the control time having a preset corresponding relationship with the temperature and a first control voltage and a second control voltage having a preset corresponding relationship with the temperature and the control time; the first control voltage is used to drive the electrochromic device to color, and the second control voltage is used to drive the electrochromic device to fade; The step of applying the control voltage to the electrochromic device within the control time so that the electrochromic device completes coloring or fading includes: applying the first control voltage to the electrochromic device within the control time so that the electrochromic device completes coloring; Alternatively, the second control voltage is applied to the electrochromic device within the control time, so that the electrochromic device completes fading.

13. The method according to claim 10, characterized in that The step of applying the control voltage to the electrochromic device within the control time so that the electrochromic device completes coloring or fading includes: Applying a first voltage to the electrochromic device within a first time period, wherein the first voltage increases from an initial voltage to the control voltage within the first time period; The control voltage is kept applied to the electrochromic device during a second time period, so that the electrochromic device completes coloring or fading, and the total duration of the first time period and the second time period is the control time.

14. The method according to claim 13, characterized in that The first voltage increases from an initial voltage to the control voltage within the first time period, comprising: The first voltage increases from an initial voltage to the control voltage in a stepwise or linear manner within the first time period.

15. The method according to claim 14, characterized in that The step of maintaining the control voltage on the electrochromic device during the second time period so that the electrochromic device completes coloring or fading includes: Applying a second voltage to the electrochromic device within a third time period, wherein the second voltage increases from the control voltage to a preset mutation voltage and then decreases to the control voltage within the third time period, so as to shorten the control time, and the third time period is a time period within the second time period; The control voltage is kept applied to the electrochromic device during other time periods of the second time period, so that the electrochromic device completes coloring or fading.

16. An electronic device, characterized in that: include: A detection module, used to obtain a first open circuit voltage of the electrochromic device when a preset coloring strategy is completed, used to obtain a second open circuit voltage of the electrochromic device when a preset fading strategy is completed, and used to perform leakage detection on the electrochromic device when the first open circuit voltage meets the coloring voltage threshold and the second open circuit voltage meets the fading voltage threshold; as well as A processor is used to determine whether the first open circuit voltage meets the coloring voltage threshold and whether the second open circuit voltage meets the fading voltage threshold, to determine whether the leakage rate of the electrochromic device meets the leakage rate threshold, and to determine that the electrochromic device is of qualified quality when the leakage rate of the electrochromic device meets the leakage rate threshold.

17. An electronic device, characterized in that: include: Middle frame; A transparent cover plate is fixedly connected to the middle frame and forms a receiving space; An electrochromic device is arranged in the accommodation space and is stacked with the transparent cover plate; A mainboard, installed in the accommodation space, and provided with a processor; as well as A voltage detection module, used to obtain a first open circuit voltage of the electrochromic device when a preset coloring strategy is completed, used to obtain a second open circuit voltage of the electrochromic device when a preset fading strategy is completed, and used to obtain a third open circuit voltage of the electrochromic device when a leakage condition is detected; Among them, the processor is used to determine whether the first open circuit voltage meets the coloring voltage threshold and whether the second open circuit voltage meets the fading voltage threshold, and is used to determine that the electrochromic device is of qualified quality when the third open circuit voltage meets the preset leakage voltage threshold.

18. An electronic device, characterized in that: The method comprises a processor and a memory, wherein the memory stores a computer program, and when the computer program is executed by the processor, it is used to implement the method according to any one of claims 1 to 15.

19. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method according to any one of claims 1 to 15 is implemented.

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