Light-emitting device and light control system

Abstract

A light-emitting device. The light-emitting device comprises a first support (100), a drive chip (200), a second support (300), and a light-emitting chip (400); the drive chip (200) comprises a first drive interface (241) and a second drive interface (242) having opposite polarities; a first polarity interface (110) of the first support (100) and a second polarity interface (310) of the second support (300) are respectively connected to a first power interface (210) and a second power interface (220) of the drive chip (200); a first power supply interface (410) and a second power supply interface (420) of the light-emitting chip (400) are respectively connected to the first drive interface (241) and the second drive interface (242); and the drive chip (200) is configured to control a light-emitting state of the light-emitting chip (400) on the basis of a forward voltage and a negative voltage which are provided by the power supply.

Description

Lighting device and lighting control system

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on February 1, 2024, with application number 202420254782.0, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of chip technology, for example, to a light emitting device and a lighting control system. Background Art

[0003] With the continuous development of science and technology, various functional chips have begun to appear in people's sight, among which light-emitting diode (LED) light-emitting chips and driver chips that control LED light-emitting chips have also come into being.

[0004] In the existing chip packaging method, one power supply interface of the LED light-emitting chip is connected to the driver chip to obtain the positive voltage, and the other power supply interface is connected to the bracket where it is located through a wire to ensure that the bracket where the LED light-emitting chip is located is at a negative voltage. The voltage difference formed thereby enables the LED light-emitting chip to remain in a luminous state.

[0005] However, with this packaging method, the LED light-emitting chip and driver chip can only operate under a single voltage direction, which has poor applicability. In particular, when the voltage direction is reversed, there are serious safety risks.

[0006] Summary of the Invention

[0007] The present application provides a light-emitting device to solve the problem that a light-emitting chip can only operate under a unidirectional voltage.

[0008] The present application provides a light-emitting device, comprising: a first bracket, a driver chip, a second bracket and at least one light-emitting chip; the driver chip is configured on the first bracket; the driver chip includes a first power interface, a second power interface, a driver component and at least one driver interface group; each driver interface group includes a first driver interface and a second driver interface with opposite polarity; the first polarity interface of the first bracket is connected to the first power interface; the at least one light-emitting chip is configured on the second bracket; the at least one light-emitting chip is matched one-to-one with the at least one driver interface group; each light-emitting chip includes a first power supply interface and a second power supply interface; the first power supply interface is connected to the first driver interface in the driver interface group matching each light-emitting chip, and the second power supply interface is connected to the second driver interface in the driver interface group matching each light-emitting chip; the second polarity interface of the second bracket is connected to the second power interface; the driver component is connected to the first power interface, the second power interface and the at least one driver interface group, and is configured to control the light-emitting state of the target light-emitting chip through the matched target driver interface group according to the positive voltage and negative voltage provided by the power supply.

[0009] The first bracket and the second bracket are different in bracket type; wherein, when the first bracket is a plug-in bracket, the second bracket is a patch bracket; when the first bracket is a patch bracket, the second bracket is a plug-in bracket.

[0010] The first bracket includes a first bracket body and a first bracket pin, and the first bracket body and the first bracket pin are connected in a movable manner; or the second bracket includes a second bracket body and a second bracket pin, and the second bracket body and the second bracket pin are connected in a movable manner; or the first bracket includes a first bracket body and a first bracket pin, and the first bracket body and the first bracket pin are connected in a movable manner, and the second bracket includes a second bracket body and a second bracket pin, and the second bracket body and the second bracket pin are connected in a movable manner.

[0011] The first bracket and the second bracket are both attached to a fixed mainboard, and the fixed mainboard includes a first through-hole corresponding to the first bracket, and a second through-hole corresponding to the second bracket, the first bracket pin of the first bracket passes through the first through-hole and is inserted into the first bracket body of the first bracket, and the second bracket pin of the second bracket passes through the second through-hole and is inserted into the second bracket body of the second bracket.

[0012] The driving component also includes a rectifier and filter module, an energy storage module, a power sampling module, a logic control module and a driving execution module; the driving component is configured to obtain the electric energy output by the power supply through the first power interface and the second power interface, and to supply power to the logic control module through the rectifier and filter module or the energy storage module; the power sampling module is connected to the first power interface or the second power interface, and is configured to obtain the voltage direction of the power supply; the logic control module is configured to determine the target driving interface group and the target lighting mode to be controlled based on the proportional relationship between the positive voltage duration and the negative voltage duration; the driving execution module is configured to control the lighting state of the target light-emitting chip based on the target lighting mode through the target driving interface group.

[0013] The power sampling module includes a direction sampling unit and a value sampling unit; the direction sampling unit is configured to obtain the voltage direction of the power supply; the value sampling unit is configured to obtain the voltage value of the power supply; the logic control module is configured to determine the target drive interface group to be controlled and the target lighting mode based on the proportional relationship between the positive voltage duration and the negative voltage duration, as well as the positive voltage value and the negative voltage value.

[0014] The driving component further includes a reference clock module; the reference clock module is connected to the logic control module and is configured to provide a reference clock signal to the logic control module.

[0015] The driving component also includes an identification storage module; the identification storage module is connected to the logic control module and is configured to store the identification information of the current light-emitting device; the logic control module is configured to determine the identification information of the target light-emitting device to be controlled based on the proportional relationship between the forward voltage duration and the negative voltage duration, and when it is determined that the identification information of the target light-emitting device is the same as the identification information of the current light-emitting device, continue to determine the target drive interface group and target light-emitting mode to be controlled based on the proportional relationship between the forward voltage duration and the negative voltage duration.

[0016] The present application also provides a lighting control system, including a step-down module, a control module, a direction selection module and a light-emitting component; wherein the light-emitting component includes the light-emitting device described in any embodiment of the present application; the step-down module is connected to the control module and is configured to convert the supply voltage into the operating voltage of the control module; the control module is connected to the direction selection module and is configured to control the current direction of the light-emitting component through the direction selection module.

[0017] The light-emitting assembly includes at least one of the following: at least one light-emitting series assembly and at least one light-emitting parallel assembly; the multiple light-emitting devices in each light-emitting series assembly are connected in series, and the multiple light-emitting devices in each light-emitting parallel assembly are connected in parallel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG1A is a structural diagram of a light emitting device provided according to Embodiment 1 of the present application;

[0019] FIG1B is a schematic structural diagram of another light-emitting device provided according to Example 1 of the present application;

[0020] FIG1C is a schematic structural diagram of another light-emitting device provided according to the first embodiment of the present application;

[0021] FIG1D is a schematic structural diagram of another light-emitting device provided according to the first embodiment of the present application;

[0022] FIG2A is a structural diagram of a driving assembly provided according to a second embodiment of the present application;

[0023] FIG2B is a schematic diagram showing the directions of the positive voltage and the negative voltage according to the second embodiment of the present application;

[0024] FIG2C is a structural diagram of another driving assembly provided according to the second embodiment of the present application;

[0025] FIG3 is a structural diagram of a lighting control system provided according to the third embodiment of the present application. DETAILED DESCRIPTION

[0026] The technical solutions in this application will be described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of this application. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0028] Example 1

[0029] Figure 1A is a structural diagram of a light-emitting device provided in Example 1 of the present application, which includes a first bracket 100, a driving chip 200, a second bracket 300 and at least one light-emitting chip 400; the driving chip 200 is configured on the first bracket 100; the driving chip 200 includes a first power interface 210, a second power interface 220, a driving component 230 and at least one driving interface group 240; the driving interface group 240 includes a first driving interface 241 and a second driving interface 242 with opposite polarities; the first polarity interface 110 of the first bracket 100 is connected to the first power interface 210.

[0030] The bracket serves as a carrier of the chip. It is made of one or more materials such as copper, nickel, silver, aluminum, etc. and is produced through multiple processes such as stamping, electroplating, and injection molding. After the chip with relevant functions is fixed on the bracket, the positive and negative electrodes are welded on, and then it is encapsulated and formed once with packaging glue, thus completing the fixed connection between the chip and the bracket; in this embodiment of the present application, the first bracket 100 and the second bracket 300 may include an LED bracket, that is, a bracket that carries an LED light-emitting element and / or a driving element.

[0031] The first bracket 100 carries a driver chip 200. The first power interface 210 and the second power interface 220 in the driver chip 200 are connected to the power supply through a non-polarity wiring method, that is, the power supply is connected respectively through wires of the same color and without markings, so that the power supply and the driver chip 200 are connected in series. The driver chip 200 can work normally under both positive voltage and negative voltage, thereby avoiding safety hazards caused by incorrect power connection method; the first polarity interface 110 on the first bracket 100 is connected to the first power interface 210, so that the first bracket 100 and the first power interface 210 have the same polarity; the driving component 230 sends a driving signal with opposite polarity through the first driving interface 241 and the second driving interface 242.

[0032] The at least one light-emitting chip 400 is configured on the second bracket 300; the light-emitting chip 400 is matched one by one with the driving interface group 240; the light-emitting chip 400 includes a first power supply interface 410 and a second power supply interface 420; the first power supply interface 410 is connected to the first driving interface 241 in the matching driving interface group 240, and the second power supply interface 420 is connected to the second driving interface 242 in the matching driving interface group 240; the second polarity interface 310 of the second bracket 300 is connected to the second power supply interface 220.

[0033] The second bracket 300 carries one or more light-emitting chips 400. As shown in Figure 1B, taking the second bracket 300 carrying three light-emitting chips 400 as an example, the corresponding driving chip 200 also includes three driving interface groups 240. The first driving interface 241 in each driving interface group 240 is connected to the first power supply interface 410 of the corresponding light-emitting chip 400, and the second driving interface 242 is connected to the second power supply interface 420 of the corresponding light-emitting chip 400. The second polarity interface 310 on the second bracket 300 is connected to the second power supply interface 220, so that the second bracket 300 and the second power supply interface 220 have the same polarity.

[0034] The driver assembly 230 is connected to the first power interface 210, the second power interface 220, and the at least one driver interface group 240. It is configured to control the light-emitting state of the target light-emitting chip 400 through the matching target driver interface group 240 based on the positive and negative voltages provided by the power supply. As described in the above technical solution, after the driver chip 200 is connected to the power supply, the light-emitting chip 400 can operate normally regardless of whether it issues a drive signal at a positive voltage or a drive signal at a negative voltage. As a result, both the light-emitting chip 400 and the driver chip 200 can operate under both positive and negative voltages, providing strong adaptability. Even when the voltage is reversed, the normal operation of the light-emitting chip 400 is still guaranteed.

[0035] Optionally, in this application, the first bracket 100 and the second bracket 300 are of different bracket types; if the first bracket 100 is a plug-in bracket, the second bracket 300 is a patch bracket; if the first bracket 100 is a patch bracket, the second bracket 300 is a plug-in bracket. As shown in FIG1C , the first bracket 100 and the second bracket 300 can both be patch brackets, and both can be attached to the same fixed motherboard; the fixed motherboard can be made of epoxy resin; or, as shown in FIG1D , the first bracket 100 and the second bracket 300 can both be plug-in brackets; the material of the structural fixing device of the plug-in bracket can also be epoxy resin.

[0036] The first bracket 100 and the second bracket 300 can also exist in different forms, that is, the first bracket 100 exists in the form of a plug-in bracket, and the second bracket 300 exists in the form of a patch bracket, or the first bracket 100 exists in the form of a patch bracket, and the second bracket 300 exists in the form of a plug-in bracket. By configuring the first bracket 100 and the second bracket 300 as different types of brackets, the use requirements of the light-emitting device in different types of equipment are met, and the scope of application of the light-emitting device is expanded.

[0037] Optionally, in the present application, the first bracket 100 includes a first bracket body and a first bracket pin, and the first bracket body and the first bracket pin are connected in a movable manner; and / or the second bracket 300 includes a second bracket body and a second bracket pin, and the second bracket body and the second bracket pin are connected in a movable manner.

[0038] When the first bracket 100 and / or the second bracket 300 is a plug-in bracket as shown in Figure 1D, the bracket body and the bracket pins below can be connected in a non-fixed, that is, movable, manner. When the first bracket 100 and / or the second bracket 300 need to be used in the form of a patch bracket, the bracket pins are separated from the bracket body, and the bracket body is connected to the fixed mainboard, and it is converted into a patch bracket. When the first bracket 100 and / or the second bracket 300 need to be used in the form of a plug-in bracket, the bracket pins can be connected to the bracket body, that is, it is restored to a plug-in bracket, so that the light-emitting device can flexibly change the bracket type, further meeting the use requirements of different equipment structures.

[0039] Optionally, in the present application, the first bracket 100 and the second bracket 300 are both mounted on a fixed mainboard, and the fixed mainboard includes a first perforation corresponding to the first bracket 100, and a second perforation corresponding to the second bracket 300, the first bracket pin is inserted into the first bracket body through the first perforation, and the second bracket pin is inserted into the second bracket body through the second perforation.

[0040] As shown in Figure 1C, the first bracket 100 and the second bracket 300 can be first patched on the fixed mainboard, and then a first through-hole matching the center position of the first bracket 100 and a second through-hole matching the center position of the second bracket 300 are opened on the fixed mainboard. When the first bracket pin needs to be inserted into the first bracket body, it is inserted through the first through-hole. At this time, the first bracket 100 is changed to a plug-in bracket; when the first bracket pin does not need to be inserted into the first bracket body, the first bracket 100 itself is a patch bracket; similarly, when the second bracket pin needs to be inserted into the second bracket body, it is inserted through the second through-hole. At this time, the second bracket 300 is changed to a plug-in bracket; when the second bracket pin does not need to be inserted into the second bracket body, the second bracket 300 itself is a patch bracket, thereby further improving the flexibility of changing the bracket type of the light-emitting device and improving the convenience of using the light-emitting device.

[0041] In this application, the driving chip is connected to the first power supply interface of the light-emitting chip through the first driving interface, and is connected to the second power supply interface of the light-emitting chip through the second driving interface, and the first polarity interface of the first bracket and the second polarity interface of the second bracket are respectively connected to the first power interface and the second power interface. The above-mentioned chip packaging method enables the driving chip to operate normally after the power supply is turned on, regardless of whether the driving signal is under a positive voltage or a negative voltage. This not only expands the scope of application of the light-emitting device, but also ensures the normal operation of the light-emitting chip when the voltage is reversed, thereby avoiding the safety risks caused by voltage reversal.

[0042] Example 2

[0043] Figure 2A is a structural diagram of a driving component 230 provided in Example 2 of the present application. The driving component 230 also includes a rectifier and filter module 231, an energy storage module 232, a power sampling module 233, a logic control module 234 and a driving execution module 235; the driving component 230 is configured to obtain the electric energy output by the power supply through the first power interface 210 and the second power interface 220, and to supply power to the logic control module 234 through the rectifier and filter module 231 or the energy storage module 232.

[0044] The rectifier and filter module 231 rectifies the sinusoidal alternating current input by the power supply through an internal rectifier circuit and outputs pulsating direct current. However, since this direct current also contains an AC component, it is necessary to continue to filter the pulsed direct current through an internal filter circuit to filter out the AC component. The rectifier circuit can perform rectification through a diode. The filter circuit can be composed of capacitor elements and inductor elements, and the filtering process is performed through a capacitor filter circuit, an inductor filter circuit and a composite filter circuit. Optionally, in this application, the structure of the rectifier circuit and the filter circuit is not limited.

[0045] The energy storage module 232 serves as an energy storage element in the drive component 230. When the power supply is operating normally, the rectifier and filter module 231 outputs the output DC power to the logic control module 234 to meet the power supply requirements of the logic control module 234. At the same time, the DC power is also output to the energy storage module 232. The energy storage module 232 stores electrical energy through internal capacitors or other energy storage elements. When the power supply transmits data by changing the voltage direction, when the voltage value passes through 0, that is, when the voltage value is close to 0 or equal to 0, the rectifier and filter module 231 no longer supplies power to the logic control module 234. Instead, the energy storage module 232 serves as a power supply device and transmits its stored electrical energy to the logic control module 234 to provide the logic control module 234 with the electrical energy required for operation. After the voltage value passes through 0, the logic control module 234 is restored to supply power from the rectifier and filter module 231.

[0046] The power sampling module 233 is connected to the first power interface 210 or the second power interface 220 and is configured to obtain the voltage direction of the power supply; the logic control module 234 is configured to determine the target drive interface group 240 to be controlled and the target light-emitting mode based on the proportional relationship between the positive voltage duration and the negative voltage duration; the drive execution module 235 is configured to control the light-emitting state of the target light-emitting chip based on the target light-emitting mode through the target drive interface group 240.

[0047] The power sampling module 233 is connected to either the first power interface 210 or the second power interface 220 and is configured to detect the voltage direction of the power supply. For example, the voltage of the current flowing from the current power interface to the other power interface is defined as a negative voltage, and the voltage of the current flowing from the other power interface to the current power interface is defined as a positive voltage. The logic control module 234 determines the value of the current data bit based on the ratio of the duration of the positive voltage to the duration of the negative voltage within a data detection cycle.

[0048] For example, if the ratio of the duration of the forward voltage to the duration of the negative voltage is one to two, the current data bit is determined to be a value of 1; if the ratio of the duration of the forward voltage to the duration of the negative voltage is two to one, the current data bit is determined to be a value of 0; thereby, the value of one data bit is obtained within one data detection cycle; multiple data bits obtained through continuous data detection cycles constitute the control instructions of the light-emitting chip.

[0049] The driving execution module 235 can be connected to at least one driving interface group 240, and each driving interface group 240 is connected to a light-emitting chip 400; in the present application, the same number of data bits can be assigned to each light-emitting chip 400 to be controlled, for example, 8 bits are used to represent 256 brightness levels (i.e., 0 to 255 levels); 4 bits are used to represent 8 different colors (e.g., red, orange, yellow, green, cyan, blue, purple and white); 1 bit is used to represent the state (i.e., always on or flashing); thus, a light-emitting chip control instruction in binary can be represented by 13 bits.

[0050] If the driver execution module 235 is connected to a light-emitting chip 400 via each of the three driver interface groups 240, then the lighting mode of each light-emitting chip 400 can be determined by sequentially obtaining a control instruction consisting of 39 data bits (i.e., 13×3=39). The driver component 230 then controls the lighting of the three light-emitting chips 400 accordingly. Furthermore, identification information for different light-emitting chips 400 can be represented by multiple bits. For example, if the three light-emitting chips 400 can be distinguished by two bits, directional control of the target light-emitting chip 400 can be achieved using 15 bits (i.e., 13+2=15). This avoids redundant control of light-emitting chips 400 that do not need to be illuminated and reduces the number of data bits in the transmitted signal.

[0051] Optionally, in the present application, the power sampling module 233 includes a direction sampling unit and a value sampling unit; the direction sampling unit is configured to obtain the voltage direction of the power supply; the value sampling unit is configured to obtain the voltage value of the power supply; the logic control module 234 is configured to determine the target drive interface group 240 to be controlled and the target lighting mode based on the proportional relationship between the positive voltage duration and the negative voltage duration, as well as the positive voltage value and the negative voltage value.

[0052] The power sampling module 233 can detect the voltage direction of the power supply through the direction sampling unit and the voltage value of the power supply through the value sampling unit within a data detection cycle, thereby obtaining the proportional relationship between the positive voltage duration and the negative voltage duration, as well as the positive voltage value and the negative voltage value; wherein the positive voltage value and the negative voltage value can be used to represent the identification information of the light-emitting chip 400 to be controlled, that is, the identification information of the driving interface group 240 to be controlled.

[0053] For example, as shown in FIG2B , when the positive voltage value and the negative voltage value are 1V and -1V respectively, it indicates that the light-emitting chip No. 1 is controlled by the drive interface group No. 1; when the positive voltage value and the negative voltage value are 2V and -2V respectively, it indicates that the light-emitting chip No. 2 is controlled by the drive interface group No. 2; in FIG2B , the proportional relationship between the positive voltage duration and the negative voltage duration of the two is actually the same, indicating that the light-emitting chip No. 1 and the light-emitting chip No. 2 emit light in the same light-emitting manner, but the difference in voltage values ​​can accurately distinguish whether the current light-emitting chip control instruction is for the light-emitting chip No. 1 or the light-emitting chip No. 2; thereby, without increasing the number of data bits, directional transmission of the target light-emitting chip 400 is achieved, thereby improving data transmission efficiency.

[0054] As shown in FIG2C , in the present application, the driving component 230 optionally further includes a reference clock module 236. The reference clock module 236 is connected to the logic control module 234 and is configured to provide a reference clock signal to the logic control module 234. The logic control module 234 may use one or more reference clock signals as a data detection cycle and determine the detection time of each data detection cycle based on the reference clock signal provided by the reference clock module 236, thereby ensuring the time consistency of each data detection cycle and improving the accuracy of acquiring the transmitted data.

[0055] Optionally, in the present application, the driving component 230 also includes an identification storage module 237; the identification storage module 237 is connected to the logic control module 234 and is configured to store the identification information of the current light-emitting device; the logic control module 234 is configured to determine the identification information of the target light-emitting device to be controlled based on the proportional relationship between the forward voltage duration and the negative voltage duration, and when it is determined that the identification information of the target light-emitting device is the same as the identification information of the current light-emitting device, continue to determine the target driving interface group to be controlled and the target lighting mode based on the proportional relationship between the forward voltage duration and the negative voltage duration.

[0056] When the power supply is connected to multiple light-emitting devices at the same time, it may send light-emitting chip control instructions to different light-emitting devices in a polling manner, or it may send light-emitting chip control instructions only to some of the light-emitting devices according to user needs; at this time, the power supply first sends the identification information of the target light-emitting device to be controlled by changing the voltage direction; the logic control module 234 first determines the identification information of the target light-emitting device to be controlled based on the proportional relationship between the positive voltage duration and the negative voltage duration, and compares the identification information of the target light-emitting device with the identification information of the current light-emitting device.

[0057] If the identification information of the target light-emitting device is determined to be different from the identification information of the current light-emitting device, it indicates that the current light-emitting device is not the controlled object, and the light-emitting chip control instruction issued is not related to the current light-emitting device. In this case, the logic control module 234 will not continue to obtain subsequent light-emitting chip control instructions; the power sampling module 233 will continue to detect the direction of the power supply voltage. If the identification information of the target light-emitting device is determined to be the same as the identification information of the current light-emitting device, it indicates that the current light-emitting device is the controlled object, and the light-emitting chip control instruction issued is related to the current light-emitting device.

[0058] Logic control module 234 continues to acquire the proportional relationship between the positive voltage duration and the negative voltage duration through power sampling module 233, and determines the target driver interface group and target lighting mode to be controlled based on this proportional relationship. This allows a light-emitting device to determine whether to execute subsequent light-emitting chip control instructions by identifying the identification information of the target light-emitting device, thus achieving targeted control of a specific light-emitting chip within a specific light-emitting device and improving the convenience and accuracy of the driver chip 200 in controlling the light-emitting state of the light-emitting chip.

[0059] In this application, the driving component can not only supply power to the logic control but also realize data transmission based on the voltage change of the power supply through the rectifier and filter module and the energy storage module. The driving component realizes the light control of the light-emitting chip based on the power supply transmission data through the power sampling module, the logic control module and the driving execution module. In this way, without increasing the hardware cost of the light-emitting device, the effective transmission of the light-emitting chip control instructions is realized, the hardware structure of the light-emitting device is simplified, and the management complexity of the internal functional modules of the light-emitting device is reduced.

[0060] Example 3

[0061] Figure 3 is a structural diagram of a lighting control system provided in Example 3 of the present application, which includes a step-down module, a control module, a direction selection module and a light-emitting component; wherein the light-emitting component includes the light-emitting device described in any embodiment of the present application; wherein the step-down module is connected to the control module and is configured to convert the supply voltage into the operating voltage of the control module; wherein the control module is connected to the direction selection module and is configured to control the current direction of the light-emitting component through the direction selection module.

[0062] The control module may include a microcontroller unit (MCU), which transmits a high-level signal or a low-level signal to the direction selection module through two interfaces. As shown in Table 1, if the two input signals (i.e., IN1 and IN2) of the direction selection module are high (H) and low (L), respectively, there is a voltage difference between the two output signals (i.e., OUT1 and OUT2) of the direction selection module, thereby generating a current. Moreover, the two transmission modes represented by sequence numbers 1 and 3 are opposite voltages to each other. If both input signals of the direction selection module are high (i.e., the transmission mode represented by sequence number 2) or low (i.e., the transmission mode represented by sequence number 4), there is no voltage difference between the two output signals of the direction selection module, and no current is generated.

[0063] Table 1 Comparison table of input signals and output signals of direction selection module

[0064] Optionally, in the present application, the light-emitting assembly includes at least one light-emitting series assembly and / or at least one light-emitting parallel assembly; the multiple light-emitting devices in the light-emitting series assembly are connected in series, and the multiple light-emitting devices in the light-emitting parallel assembly are connected in parallel. As shown in FIG3 , the light-emitting assembly can be composed of one or more light-emitting series assemblies, each of which is composed of any number of light-emitting devices. At the same time, the light-emitting assembly can also be composed of one or more light-emitting parallel assemblies, each of which is also composed of any number of light-emitting devices. In addition, the light-emitting series assembly and the light-emitting parallel assembly can also be configured with one or more current-limiting resistors as needed, thereby ensuring the diversity of the light-emitting modes of the lighting control system and enhancing the visual display effect of the lighting control system.

[0065] In this application, the lighting control system composed of a step-down module, a control module, a direction selection module and a light-emitting device realizes the lighting state control of multiple light-emitting devices, ensures the diversity of the lighting modes of the lighting control system, and enhances the visual display effect of the lighting control system.

Claims

1. A light-emitting device, comprising: A first bracket, a driving chip, a second bracket and at least one light-emitting chip; The driving chip is configured on the first bracket; The driver chip includes a first power interface, a second power interface, a driver component, and at least one driver interface group; each driver interface group includes a first driver interface and a second driver interface with opposite polarities; the first polarity interface of the first bracket is connected to the first power interface; The at least one light-emitting chip is configured on the second bracket; The at least one light-emitting chip is matched one-to-one with the at least one driving interface group; each light-emitting chip includes a first power supply interface and a second power supply interface; The first power supply interface is connected to a first driving interface in a driving interface group that matches each light-emitting chip, and the second power supply interface is connected to a second driving interface in a driving interface group that matches each light-emitting chip; The second polarity interface of the second bracket is connected to the second power interface; The driving component is connected to the first power interface, the second power interface and the at least one driving interface group, and is configured to control the luminous state of the target light-emitting chip through a matching target driving interface group based on the positive voltage and negative voltage provided by the power supply.

2. The light emitting device according to claim 1, wherein The first bracket and the second bracket are different in bracket type; wherein, when the first bracket is a plug-in bracket, the second bracket is a patch bracket; when the first bracket is a patch bracket, the second bracket is a plug-in bracket.

3. The light emitting device according to claim 1, wherein The first bracket includes a first bracket body and a first bracket pin, and the first bracket body and the first bracket pin are connected in a movable connection manner; or The second bracket includes a second bracket body and a second bracket pin, and the second bracket body and the second bracket pin are connected in a movable connection manner; or The first bracket includes a first bracket body and a first bracket pin, and the first bracket body and the first bracket pin are connected in a movable manner. The second bracket includes a second bracket body and a second bracket pin, and the second bracket body and the second bracket pin are connected in a movable manner.

4. The light emitting device according to claim 3, wherein The first bracket and the second bracket are both attached to a fixed mainboard, and the fixed mainboard includes a first through-hole corresponding to the first bracket, and a second through-hole corresponding to the second bracket, the first bracket pin of the first bracket passes through the first through-hole and is inserted into the first bracket body of the first bracket, and the second bracket pin of the second bracket passes through the second through-hole and is inserted into the second bracket body of the second bracket. The light emitting device according to claim 1 , wherein: The driving component also includes a rectification and filtering module, an energy storage module, a power sampling module, a logic control module and a driving execution module; The driving component is configured to obtain the electric energy output by the power supply through the first power interface and the second power interface, and to supply power to the logic control module through the rectifier and filter module or the electric energy storage module; The power sampling module is connected to the first power interface or the second power interface and is configured to obtain the voltage direction of the power supply; The logic control module is configured to determine the target drive interface group and target light emitting mode to be controlled according to a proportional relationship between a forward voltage duration and a negative voltage duration; The driving execution module is configured to control the light-emitting state of the target light-emitting chip based on the target light-emitting mode through the target driving interface group. The light emitting device according to claim 5 , wherein: The power sampling module includes a direction sampling unit and a value sampling unit; The direction sampling unit is configured to obtain the voltage direction of the power supply; The value sampling unit is configured to obtain the voltage value of the power supply; The logic control module is configured to determine the target drive interface group to be controlled and the target lighting mode according to the proportional relationship between the forward voltage duration and the negative voltage duration, as well as the forward voltage value and the negative voltage value.

7. The light emitting device according to claim 5, wherein: The driving component further includes a reference clock module; The reference clock module is connected to the logic control module and is configured to provide a reference clock signal for the logic control module.

8. The light emitting device according to claim 5, wherein: The drive assembly further includes an identification storage module; The identification storage module is connected to the logic control module and is configured to store identification information of the current light-emitting device; The logic control module is configured to determine the identification information of the target light-emitting device to be controlled based on the proportional relationship between the forward voltage duration and the negative voltage duration, and when it is determined that the identification information of the target light-emitting device is the same as the identification information of the current light-emitting device, continue to determine the target drive interface group and target light-emitting mode to be controlled based on the proportional relationship between the forward voltage duration and the negative voltage duration.

9. A lighting control system, comprising a step-down module, a control module, a direction selection module and a light-emitting component; wherein, The light-emitting assembly comprises the light-emitting device according to any one of claims 1 to 8; The step-down module is connected to the control module and is configured to convert the supply voltage into the control module voltage. The operating voltage of the block; The control module is connected to the direction selection module and is configured to control the current direction of the light-emitting component through the direction selection module.

10. The lighting control system according to claim 9, wherein: The light-emitting assembly includes at least one of the following: at least one light-emitting series assembly and at least one light-emitting parallel assembly; the multiple light-emitting devices in each light-emitting series assembly are connected in series, and the multiple light-emitting devices in each light-emitting parallel assembly are connected in parallel.

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