Drive device

Abstract

The invention provides a driving device which comprises a light emitting module and a light condensing module, the light emitting module comprises a light emitting device, the light condensing module comprises a light condenser and a light emitting battery, and the light condenser absorbs photons which are released by the light emitting device and are not absorbed by a photovoltaic battery and outputs energy of the absorbed photons to the photovoltaic battery. Therefore, the photovoltaic cell can convert the energy output by the condenser and the energy of photons released by the self-luminous device and absorbed by the photovoltaic cell into electric energy to be output, so that the power supply systems on the high-voltage side and the low-voltage side are not directly and electrically connected, and the isolation voltage can be improved; the problem of insufficient high-voltage isolation performance of the driving device is solved.

Description

Technical Field

[0001] The present application relates to the field of power electronics technology, and in particular to a driving device. Background Art

[0002] In a drive device used to achieve reliable isolation between high power voltage and low control voltage, the power supply isolation between the low voltage side and the high voltage side is achieved by an isolation power transformer. However, the voltage output by the isolation power transformer is difficult to meet the application scenario of high voltage power supply, and it is very easy to break down in a high voltage environment, which seriously endangers the safety and stability of use. Therefore, the further application of the drive device in the high voltage field is limited. Summary of the invention

[0003] The present application aims to solve at least one of the technical problems existing in the background technology. To this end, one purpose of the present application is to provide a driving device to improve the problem of insufficient high-voltage isolation performance of the driving device.

[0004] The embodiment of the first aspect of the present application provides a driving device, including a light-emitting module and a focusing module. The light-emitting module includes at least one light-emitting device, and the focusing module includes at least one photovoltaic cell and at least one concentrator. The concentrator is used to absorb a first group of photons released by the light-emitting device, and output the energy of the absorbed first group of photons to the photovoltaic cell. The photovoltaic cell is used to absorb a second group of photons released by the light-emitting device, and convert the energy of the absorbed second group of photons and the energy output by the concentrator into electrical energy for output. The first group of photons are photons released by the light-emitting device that are not absorbed by the photovoltaic cell, and the second group of photons are photons released by the light-emitting device that are absorbed by the photovoltaic cell.

[0005] In some embodiments, the concentrator is a leaf-shaped luminescent solar concentrator.

[0006] In some embodiments, the light emitting module includes a first shell, the first shell includes a first surface. The light concentrating module includes a second shell, the second shell includes a first main body and a second main body. The first main body includes a second surface arranged toward the first surface. The second main body is connected to the boundary of the first main body and is located on a side of the first main body close to the first shell, and the second main body includes a first side surface connected to the second surface. The first surface is provided with a light emitting device, the second surface is provided with a photovoltaic cell, and the first side surface is provided with a concentrator.

[0007] In some embodiments, the first shell includes a first connecting portion and a second connecting portion. The first connecting portion includes a first surface. The second connecting portion is connected to the boundary of the first connecting portion and is located on a side of the first connecting portion close to the second shell, and the second connecting portion includes a second side surface connected to the first surface. The second side surface is provided with a light reflecting portion, and the light reflecting portion is used to reflect the light emitted by the light emitting device to the focusing module.

[0008] In some embodiments, the driving device includes a power conversion module, which is electrically connected to the focusing module, and the power conversion module is used to perform voltage conversion on a voltage output by the focusing module.

[0009] In some embodiments, the driving device further includes a driving board, which is used to transmit the electric energy output by the focusing module to the power conversion module. The focusing module is arranged on the driving board and is electrically connected to the driving board, the light-emitting module is arranged on the focusing module, and the light-emitting device is arranged opposite to the photovoltaic cell of the focusing module.

[0010] In some embodiments, the driving device includes a control module, which is electrically connected to the power conversion module. The control module is used to receive the voltage output by the power conversion module and provide a control signal to the power conversion module.

[0011] In some embodiments, the driving device includes a driving module, the driving module is electrically connected to the control module, and the driving module is used to generate a driving signal to drive the switch device to switch. The control module includes a state detection unit, and the state detection unit is used to monitor the working state of the switch device.

[0012] In some embodiments, the control module is used to output a fault electrical signal when the state detection unit detects that the switch device has a fault. The driving module is used to stop driving the switch device according to the fault electrical signal.

[0013] In some embodiments, the driving device includes an optical fiber transceiver terminal and a pulse shaping module, and the optical fiber transceiver terminal is electrically connected to the control module. The optical fiber transceiver terminal is used to convert the received pulse width modulated optical signal into a modulated electrical signal, and convert the received fault electrical signal into a fault optical signal for output. The pulse shaping circuit is electrically connected to the optical fiber transceiver terminal, and the pulse shaping circuit is used to output a square wave signal according to the received modulated electrical signal.

[0014] By making the driving device include a light-emitting module and a focusing module, and the light-emitting module includes a light-emitting device, and the focusing module includes a concentrator and a light-emitting cell, the concentrator absorbs the photons released by the light-emitting device that are not absorbed by the photovoltaic cell, and outputs the energy of the absorbed photons to the photovoltaic cell, so that the photovoltaic cell can convert the energy output by the concentrator and the energy of the photons released by the self-light-emitting device absorbed by the photovoltaic cell itself into electrical energy for output, so that the power supply systems on the high-voltage side and the low-voltage side are not directly electrically connected. That is, the power supply isolation between the low-voltage side and the high-voltage side is changed from the implementation form of electrical energy-electrical energy to the implementation form of electrical energy-light energy-electrical energy, so that the isolation voltage can be improved, and the problem of insufficient high-voltage isolation performance of the driving device is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0016] Figure 1 A schematic diagram of the structure of a driving device provided in an embodiment of the present application; Figure 2 A logic block diagram of a driving device provided in an embodiment of the present application; Figure 3 A schematic diagram of the structure of the concentrator provided in an embodiment of the present application; Figure 4 A schematic diagram of the structure of a light-emitting cell provided in an embodiment of the present application; Figure 5 A schematic diagram of the structure of a focusing module provided in an embodiment of the present application. DETAILED DESCRIPTION

[0017] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0019] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0020] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments 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.

[0021] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0022] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0023] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0024] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0025] Drive devices (such as insulated gate bipolar transistor drivers) are widely used in important scenarios such as frequency converters, inverters, and motor drives in coal mining because they can be used to achieve reliable isolation between high power voltage and low control voltage. Drive devices are mostly based on components such as isolation high-frequency transformers to achieve reliable isolation between high power voltage and low control voltage. However, the method of achieving reliable isolation between high power voltage and low control voltage based on components such as isolation high-frequency transformers has the problem of insufficient high-voltage isolation performance.

[0026] Among them, the insufficient high-voltage isolation performance is mainly manifested in that the voltage output by the isolation power supply transformer is difficult to meet the high-voltage power supply application scenarios, and breakdown is very likely to occur under high-voltage environments, seriously endangering the safety and stability of use.

[0027] Therefore, in order to improve the problem of insufficient high-voltage isolation performance of the driving device, the present application provides a driving device.

[0028] like Figure 1 A schematic diagram of the structure of the driving device provided in the embodiment of the present application, Figure 2 The logic block diagram of the driving device provided in the embodiment of the present application. The present application provides a driving device, which includes a light emitting module 10 and a light focusing module 20 .

[0029] It should be noted that the driving device may be, but is not limited to, an insulated gate bipolar transistor driver.

[0030] The light emitting module 10 includes at least one light emitting device 101. That is, the number of the light emitting devices 101 included in the light emitting module 10 is greater than or equal to 1. The light emitting device 101 is used to convert electrical energy into light energy.

[0031] Optionally, the light emitting module 10 includes an external power supply terminal 102, and the external power supply terminal 102 is used to connect to an external power supply so as to utilize the electric energy supplied by the external power supply to drive the light emitting device 101 to emit light, thereby realizing the conversion of electric energy into light energy.

[0032] Optionally, the light emitting device 101 may be a light emitting diode, so as to improve the conversion efficiency of converting electrical energy into light energy and reduce energy waste. The light emitting diode may be an organic light emitting diode, a sub-millimeter light emitting diode or a micro light emitting diode.

[0033] It is understandable that the number and specifications of the light emitting devices 101 can be set according to actual needs, which will not be described in detail here. When the light emitting module 10 includes multiple light emitting devices 101, the multiple light emitting devices 101 can be electrically connected in at least one of series and parallel.

[0034] Please continue reading Figure 1~Figure 2 The concentrating module 20 includes at least one photovoltaic cell 201 and at least one concentrator 202. That is, the number of the photovoltaic cells 201 included in the concentrating module 20 is greater than or equal to 1, and the number of the concentrators 202 included in the concentrating module 20 is greater than or equal to 1.

[0035] The concentrator 202 is used to absorb the first group of photons released by the light emitting device 101 and output the energy of the absorbed first group of photons to the photovoltaic cell 201 .

[0036] The photovoltaic cell 201 is used to absorb the second group of photons released by the light emitting device 101, and convert the energy of the absorbed second group of photons and the energy output by the concentrator 202 into electrical energy for output.

[0037] The first group of photons are photons released by the light emitting device 101 but not absorbed by the photovoltaic cell 201 , and the second group of photons are photons released by the light emitting device 101 but absorbed by the photovoltaic cell 201 .

[0038] It should be noted that, since the nature of the light emitted by the light emitting device 101 corresponds to a set of multiple photons, the first group of photons and the second group of photons may be photons in the same photon set. In other words, the light emitted by the light emitting device 101 may correspond to a set including the first group of photons and the second group of photons.

[0039] Because electrical isolation can be divided into signal isolation and power isolation, and signal isolation mainly processes control signals (such as pulse width modulation signals) so that the signal on the high-voltage side will not affect the control circuit on the low-voltage side. Power isolation processes the power supply so that the power supply systems on the high-voltage side and the low-voltage side are not directly connected, reducing current loop interference or voltage shock. In the drive device that relies on an isolation power supply transformer to achieve power isolation between the low-voltage side and the high-voltage side, the pulse width modulation signal generated by the control circuit is transmitted from the low-voltage side to the high-voltage side by means of an optical coupler, and the optical coupler transmission method can meet the requirements of signal isolation strength. However, there is a problem of insufficient high-voltage isolation performance when relying on an isolation power supply transformer to achieve power isolation between the low-voltage side and the high-voltage side.

[0040] The driving device provided in the present application is configured such that the driving device includes a light-emitting module 10 and a focusing module 20, and the light-emitting module 10 includes a light-emitting device 101, and the focusing module 20 includes a concentrator 202 and a photovoltaic cell 201. The concentrator 202 absorbs photons released by the light-emitting device 101 but not absorbed by the photovoltaic cell 201, and outputs the energy of the absorbed photons to the photovoltaic cell 201, so that the photovoltaic cell 201 can convert the energy output by the concentrator 202 and the energy of the photons released by the self-light-emitting device 101 absorbed by the photovoltaic cell 201 itself into electrical energy for output, thereby making the power supply systems on the high-voltage side and the low-voltage side not directly electrically connected, and then making the power supply isolation between the low-voltage side and the high-voltage side from the form of converting electrical energy into electrical energy that can be achieved by the isolated power supply transformer, to the form of converting electrical energy into light energy that is achieved by the cooperation of the light-emitting module 10 and the focusing module 20, and then from light energy into electrical energy, thereby making it possible to increase the isolation voltage and improve the problem of insufficient high-voltage isolation performance of the driving device.

[0041] In addition, in the driving device that relies on the isolation power supply transformer to achieve the power isolation between the low-voltage side and the high-voltage side, there is also a problem of poor anti-interference ability. That is, the driving device that relies on the isolation power supply transformer to achieve the power isolation between the low-voltage side and the high-voltage side corresponds to the complex working conditions of the high-frequency switch, and common-mode noise is very easy to generate, which seriously interferes with the signal stability. Especially in a high-voltage environment, the isolation performance of the optocoupler and the capacitive coupling of the driving device will drop sharply, and it is difficult to effectively resist interference, resulting in a significant reduction in the operating reliability of the entire system. Therefore, when facing a complex electromagnetic environment, the driving device that relies on the isolation power supply transformer to achieve the power isolation between the low-voltage side and the high-voltage side is prone to signal transmission deviation, affecting the normal operation of the equipment. In the present application, because the driving device achieves the power isolation between the low-voltage side and the high-voltage side through the light-emitting module 10 and the focusing module 20, the problem of the sharp drop in the isolation performance of the optocoupler and the capacitive coupling will not occur in the driving device corresponding to the complex working conditions of the high-frequency switch. Therefore, the driving device provided in the present application can suppress the common-mode noise generated by the high-frequency switch, enhance the anti-interference performance under the high-voltage environment, ensure stable signal transmission, improve the overall reliability of the system, and enable the driving device to work stably in a complex electromagnetic environment.

[0042] In a driving device that relies on an isolation power transformer to achieve power isolation between the low-voltage side and the high-voltage side, the isolation power transformer is relatively large. Therefore, the driving device that relies on an isolation power transformer to achieve power isolation between the low-voltage side and the high-voltage side is contrary to the technical development trend of high integration and miniaturization. In the present application, the power isolation between the low-voltage side and the high-voltage side is achieved by the light-emitting module 10 and the focusing module 20. Therefore, the volume of the driving device can be significantly reduced, so that the driving device can meet the technical development trend of high integration and miniaturization.

[0043] Optionally, the photovoltaic cell 201 and the concentrator 202 in the concentrating module 20 adopt an integrated design to achieve easy installation and replacement of the concentrating module 20 while reducing the layout space occupied by the concentrating module 20, so as to meet the development trend of modern power electronic equipment and achieve miniaturization and integrated design.

[0044] In some embodiments, the product of the length and width of the focusing module 20 is less than or equal to 12 square centimeters, and the height of the focusing module 20 is less than or equal to 3 centimeters, so as to reduce the layout space occupied by the focusing module 20.

[0045] The driving device provided by the present application is provided with a photovoltaic cell 201 and a concentrator 202 in the concentrator module 20 at the same time, and the concentrator 202 can be used to widen the absorption area of ​​photons by the concentrator module 20, thereby improving the collection efficiency of the photons released by the light-emitting device 101 by the concentrator module 20, and facilitating the improvement of the utilization rate of the light energy emitted by the light-emitting module 10. Moreover, the photovoltaic cell 201 and the concentrator 202 work together, so that the concentrator module 20 can output electric energy stably and continuously, thereby improving the working stability of the driving device.

[0046] In some embodiments, the drive device provided in the present application is applied to important scenarios such as frequency converters, inverters and motor drives in coal mining. The isolation voltage of the drive device provided in the present application can reach above 11 kV, which can provide reliable electrical isolation protection for high-voltage application scenarios. The drive device can meet the needs of high-voltage level application scenarios.

[0047] It should be noted that the photovoltaic cell 201 includes a semiconductor material that can absorb the energy of photons. The semiconductor material included in the photovoltaic cell 201 can be set with reference to relevant designs, and will not be described in detail here.

[0048] In some embodiments, the light emitting module 10 is located at the low voltage side, and the focusing module 20 is located at the high voltage side.

[0049] Optionally, when the concentrating module 20 includes a plurality of photovoltaic cells 201 , the plurality of photovoltaic cells 201 may be connected in series to form a photovoltaic cell 201 group.

[0050] The electric energy that the concentrating module 20 can output is related to the number of photovoltaic cells 201 included in the concentrating module 20 and the voltage that a single photovoltaic cell 201 can output. Therefore, the voltage that the concentrating module 20 can output can be obtained based on the number of photovoltaic cells 201 and the voltage that a single photovoltaic cell 201 can output.

[0051] For example, the photovoltaic cell group includes X photovoltaic cells 201, and the voltage that any photovoltaic cell 201 in the photovoltaic cell group can output is Y volts (i.e., the corresponding unit is V). Then, the voltage that the photovoltaic cell group can output is U=XY. That is, the voltage that the photovoltaic cell group can output is the product of the number of photovoltaic cells 201 included in the photovoltaic cell group and the voltage that a single photovoltaic cell 201 can output. Among them, X≥1, and Y can be determined according to the voltage that a single photovoltaic cell 201 can actually output.

[0052] It should be noted that the concentrating module 20 may include at least one photovoltaic cell group. The multiple photovoltaic cells 201 included in the same photovoltaic cell group are electrically connected to each other. Optionally, the multiple photovoltaic cells 201 included in the same photovoltaic cell group are connected in series.

[0053] When the concentrator module 20 includes multiple photovoltaic cell groups, the multiple photovoltaic cell groups are electrically connected. Optionally, the multiple photovoltaic cell groups are connected in series. When the concentrator module 20 includes multiple photovoltaic cell groups, the voltage output by the concentrator module 20 is the sum of the voltages that can be output by the multiple photovoltaic cell groups.

[0054] Since the output voltage of the focusing module 20 is related to the number of photovoltaic cells 201 and the voltage that a single photovoltaic cell 201 can output, the number of photovoltaic cells 201 required to be set in the focusing module 20 can be obtained based on the voltage that a single photovoltaic cell 201 can output and the voltage that the focusing module 20 needs to output.

[0055] For example, the concentrating module 20 includes a photovoltaic cell group, the photovoltaic cell group includes a plurality of photovoltaic cells 201, the voltage required to be output by the photovoltaic cell group is 18V, and the voltage that a single photovoltaic cell 201 can output is 0.5V. If the voltage output by the concentrating module 20 is required to be 18V, then the photovoltaic cell group needs to include 36 photovoltaic cells 201.

[0056] Please continue reading Figure 1~Figure 2 In some embodiments, the concentrator 202 may be a luminescent solar concentrator 202. That is, the concentrator 202 uses fluorescent materials to absorb light emitted by the light emitting device 101, and re-emits light of a specific wavelength, and then guides the light energy to the corresponding photovoltaic cell 201 through the waveguide effect. The concentrating module realizes the convergence and transmission of photons through the photovoltaic cell 201 and the concentrator 202, and the concentrating module realizes the conversion of light energy into electrical energy through the photovoltaic cell 201. By including the photovoltaic cell 201 and the concentrator 202 in the concentrating module 20, the concentrator 202 can be used to improve the light energy conversion efficiency.

[0057] like Figure 3 A schematic diagram of the structure of the concentrator provided in the embodiment of the present application. In some embodiments, the concentrator 202 may be a leaf-shaped luminous solar concentrator, so as to utilize the advantage of the leaf-shaped luminous solar concentrator in capturing wide-angle incident light (such as diffuse light) to collect photons from multiple angles, improve the absorption capacity of the concentrating module 20 for photons released by the light-emitting device 101, broaden the absorption area of ​​the concentrating module 20 for photons, improve the utilization rate of light in different directions, and thus further improve the utilization rate of the light energy released by the light-emitting device 101.

[0058] It should be noted that the concentrator 202 in the present application includes but is not limited to a leaf-shaped luminous solar concentrator.

[0059] like Figure 4 This is a schematic diagram of the structure of the light emitting module provided in the embodiment of the present application. Figure 5The light emitting module 10 includes a first housing 103 , and the light condensing module 20 includes a second housing 203 .

[0060] The first housing 103 includes a first surface, and the light emitting device 101 is disposed on the first surface.

[0061] The second housing 203 includes a first main body 2031 and a second main body 2032. The first main body 2031 includes a second surface facing the first surface, and the second surface is provided with a photovoltaic cell 201. The second main body 2032 is connected to the boundary of the first main body 2031 and is located on a side of the first main body 2031 close to the first housing 103. The second main body 2032 includes a first side surface connected to the second surface, and the first side surface is provided with a concentrator 202.

[0062] The light emitting device 101 is arranged on the first surface, the photovoltaic cell 201 is arranged on the second surface facing the first surface, and the concentrator 202 is arranged on the first side, so as to increase the number of photons received by the photovoltaic cell 201, and further improve the absorption of photons released by the light emitting device 101 through the concentrator 202, so as to further improve the light energy utilization efficiency.

[0063] Optionally, a plurality of light emitting devices 101 are arranged in an array on the first surface to increase the probability of receiving photons by the photovoltaic cell 201 and the concentrator 202. The second housing 203 includes four second main body parts 2032 connected to the boundary of the first main body part 2031, any second main body part 2032 includes a first side surface, and the concentrator 202 is provided on the first side surface of at least one of the four second main body parts 2032.

[0064] It should be noted that the number and arrangement of the concentrators 202 can be set according to actual needs and will not be described in detail here.

[0065] In some embodiments, in order to improve the utilization rate of light energy, a light reflecting portion may also be provided on the first shell 103, and the light reflecting portion is used to reflect the light emitted by the light-emitting device 101 to the focusing module 20, so that as much light as possible emitted by the light-emitting device 101 can be received by the photovoltaic cell 201 and the concentrator 202, thereby reducing the loss of light emitted by the light-emitting device 101.

[0066] Optionally, in order to allow at least one of the photovoltaic cell 201 and the concentrator 202 to receive the light reflected by the light reflecting portion, the light reflecting portion may be disposed on a side surface of the first shell 103 facing the light concentrating module 20. However, if the light reflecting portion is disposed on the first surface, the light reflecting portion will occupy the layout space of the light emitting device 101, reducing the light energy that can be provided by the light emitting module 10. Moreover, the light emitted by the light emitting device 101 is radiated in all directions, but the light radiated to the back and sides of the light emitting device 101 will be significantly less than the light radiated in the space in front of the light emitting device 101. Therefore, if the light reflecting portion and the light emitting device 101 are disposed on the first surface at the same time, the light reflecting portion will receive less light, which is not conducive to improving the light energy utilization rate.

[0067] Therefore, the light reflecting portion can be disposed on the side of the first housing 103 facing the light focusing module 20. Figure 4 The first shell 103 includes a first connecting portion 1031 and a second connecting portion 1032 .

[0068] The first connection portion 1031 includes a first surface, and the first connection portion 1031 is used to support the light emitting device 101 .

[0069] The second connection portion 1032 is connected to the boundary of the first connection portion 1031 and is located on a side of the first connection portion 1031 close to the second shell 203 . The second connection portion 1032 includes a second side surface connected to the first surface, and a light reflecting portion is disposed on the second side surface.

[0070] By arranging the light reflecting portion on the second side surface, the light emitted by the light emitting device 101 is reflected to the light focusing module 20 through the light reflecting portion, thereby improving the utilization rate of light energy.

[0071] Optionally, the light reflecting portion may be a reflective sheet, or may be an optical structure such as a prism or a protrusion that can achieve reflection.

[0072] Please continue reading Figure 1~Figure 2 The driving device further includes a power conversion module 30 , which is electrically connected to the focusing module 20 , and is used for performing voltage conversion on the voltage output by the focusing module 20 .

[0073] In some embodiments, the power conversion module 30 can convert the voltage output by the focusing module 20 into the voltage required by some modules or devices in the driving device to power some modules or devices in the driving device.

[0074] Please continue to read Figure 1~Figure 2The driving device may further include at least one of a control module 40, a driving module 50, an optical fiber transceiver terminal 60 and a pulse shaping module 70. The power conversion module 30 may convert the voltage output by the focusing module 20 into an operating voltage required by at least one of the control module 40, the driving module 50, the optical fiber transceiver terminal 60 and the pulse shaping module 70.

[0075] Optionally, the driving device includes a driving module 50 , which is electrically connected to the power conversion module 30 , and the power conversion module 30 is used to provide a required working voltage to the driving module 50 .

[0076] In some embodiments, the power conversion module 30 includes a buck-boost conversion circuit, which is used to convert the voltage output by the focusing module 20 into multiple voltages used by the driving module 50. For example, if the voltage output by the focusing module 20 is 18V, the buck-boost conversion circuit can convert the 18V voltage output by the focusing module 20 into a +15V voltage and a -9V voltage required by the driving module 50.

[0077] In some embodiments, the driving device may be used to drive the switching device to switch, and the driving module 50 in the driving device may be used to generate a driving signal to drive the switching device to switch.

[0078] Among them, the switching device can be a transistor. Optionally, the transistor can be a device such as an insulated gate bipolar transistor, a metal oxide semiconductor field effect transistor or a thin film transistor. The driving signal generated by the driving module 50 can be used to control the gate of the transistor to control the conduction and cutoff of the transistor through the relationship between the voltage difference between the gate and the source of the transistor and the threshold voltage of the transistor, thereby realizing the control of the switching state of the switching device. The driving signal can have a jump between a high level and a low level to realize the control of the switching state of the transistor through the jump between a high level and a low level.

[0079] It should be noted that the driving module 50 can be formed by combining one or more devices such as semiconductor devices, resistors and capacitors to form a driving circuit. Among them, the semiconductor device is at least one of a diode, a triode and a transistor. In some embodiments, the driving module 50 can be a gate driving circuit.

[0080] Optionally, the driving device includes an optical fiber transceiver terminal 60 , which is electrically connected to the power conversion module 30 , and the power conversion module 30 is used to provide a working voltage for the optical fiber transceiver terminal 60 .

[0081] In some embodiments, the power conversion module 30 includes a buck-boost conversion circuit and a buck conversion circuit. The buck-boost conversion circuit is used to convert the voltage output by the focusing module 20 into a first voltage and output it to the buck conversion circuit. The buck conversion circuit is used to convert the first voltage into a second voltage and output the second voltage to the optical fiber transceiver terminal 60. For example, if the voltage output by the focusing module 20 is 18V, the buck-boost conversion circuit can convert the 18V voltage output by the focusing module 20 into a first voltage with a volt value of 15V, and the buck conversion circuit can convert the first voltage of 15V into a second voltage with a volt value of 5V, and provide the second voltage to the optical fiber transceiver terminal 60.

[0082] In some embodiments, the optical fiber transceiver terminal 60 is electrically connected to the control module 40 of the driving device, and the optical fiber transceiver terminal 60 is used to convert the received pulse width modulated optical signal into a modulated electrical signal, and convert the received fault electrical signal into a fault optical signal for output, so as to realize the photoelectric conversion and transmission of the signal, so that the control signal of the driving device can be accurately transmitted. Among them, the pulse width modulated signal can be provided by an external circuit or device, and the fault electrical signal can be provided by the control module 40 in the driving device. The external circuit or device can be a waveform generator, a single chip microcomputer, a programmable logic device, etc.

[0083] Optionally, the optical fiber transceiver terminal 60 can receive two pulse width modulated optical signals and output two fault optical signals.

[0084] Optionally, the driving device includes a pulse shaping module 70 , which is electrically connected to the power conversion module 30 , and the power conversion module 30 is used to provide the pulse shaping module 70 with a required working voltage.

[0085] In some embodiments, a buck-boost conversion circuit and a buck conversion circuit that cooperate with each other are provided in the power conversion module 30 to provide a working voltage for the pulse shaping module 70. That is, the buck-boost conversion circuit is used to convert the voltage output by the focusing module 20 into a third voltage and output it to the buck conversion circuit, and the buck conversion circuit is used to convert the third voltage into a fourth voltage and output the fourth voltage to the pulse shaping module 70. For example, if the voltage output by the focusing module 20 is 18V, the buck-boost conversion circuit can convert the 18V voltage output by the focusing module 20 into a third voltage with a volt value of 15V, and the buck conversion circuit can convert the third voltage of 15V into a fourth voltage with a volt value of 5V, and provide the fourth voltage to the pulse shaping module 70.

[0086] Optionally, the optical fiber transceiver terminal 60 and the pulse shaping module 70 share the step-up / step-down conversion circuit and the step-down conversion circuit in the power conversion module 30 to reduce the number of components used in the driving device, thereby reducing the cost and volume of the driving device.

[0087] In some embodiments, the pulse shaping module 70 is electrically connected to the optical fiber transceiver terminal 60 , and the pulse shaping module 70 is used to output a square wave signal according to the received modulated electrical signal to achieve shaping control of the modulated telecommunication signal output by the optical fiber transceiver terminal 60 .

[0088] Among them, the square wave signal output by the pulse shaping module 70 can be output to the driving module 50, so that the driving module 50 can receive a stable and reliable driving control signal, and the driving module 50 can generate a driving signal for driving the switching device to switch according to the received driving control signal.

[0089] The pulse shaping module 70 may be a pulse shaping circuit 70. The pulse shaping module 70 may be implemented by a Schmitt trigger, so as to utilize the Schmitt trigger to output a standard square wave signal according to the level change of the input signal of the optical fiber transceiver terminal 60, thereby improving the signal quality, so that the driving module 50 can receive a stable and reliable driving control signal.

[0090] Optionally, the driving device includes a control module 40 , which is electrically connected to the power conversion module 30 , and the power conversion module 30 is used to provide the control module 40 with a required operating voltage.

[0091] In some embodiments, the power conversion module 30 includes a buck-boost conversion circuit, a buck conversion circuit, and a low-voltage difference linear regulator. The buck-boost conversion circuit is used to convert the voltage output by the focusing module 20 into a fifth voltage and output it to the buck conversion circuit. The buck conversion circuit is used to convert the fifth voltage into a sixth voltage and output the sixth voltage to the low-voltage difference linear regulator. The low-voltage difference linear regulator is used to convert the sixth voltage into the voltage required by the control module 40. For example, if the voltage output by the focusing module 20 is 18V, the buck-boost conversion circuit can convert the 18V voltage output by the focusing module 20 into a fifth voltage with a volt value of 15V, the buck conversion circuit can convert the fifth voltage of 15V into a sixth voltage with a volt value of 5V, and provide the sixth voltage to the low-voltage difference linear regulator. The low-voltage difference linear regulator converts the sixth voltage with a volt value of 5V into the 3.3V and 1.9V voltages required by the control module 40.

[0092] Optionally, the optical fiber transceiver terminal 60, the pulse shaping module 70 and the control module 40 share the step-up / step-down conversion circuit and the step-down conversion circuit in the power conversion module 30 to reduce the number of components used in the driving device, thereby reducing the cost and volume of the driving device.

[0093] Optionally, the boost-boost conversion circuit, the buck conversion circuit and the low-voltage linear regulator in the power conversion module 30 can be packaged together to achieve an integrated design, which is conducive to the integrated and miniaturized design of the drive device.

[0094] Please continue reading Figure 1~Figure 2 The control module 40 is electrically connected to at least one of the power conversion module 30 , the optical fiber transceiver terminal 60 , and the driving module 50 .

[0095] In some embodiments, the driving module 50 may be a device such as a microcontroller.

[0096] Optionally, the control module 40 is electrically connected to the power conversion module 30. The control module 40 receives the voltage output by the power conversion module 30 and is used to provide a control signal to the power conversion module 30 so as to control the working state of the power conversion module 30 through the control signal output by the control module 40.

[0097] Optionally, the control module 40 is electrically connected to the optical fiber transceiver terminal 60. The control module 40 is used to return the fault electrical signal to the external output through the optical fiber transceiver terminal 60 when the switch device fails, so as to ensure the safety of the system.

[0098] Optionally, the control module 40 is electrically connected to the driving module 50, and the control module 40 is used to output a fault electrical signal when a switch device fails. The driving module 50 is used to stop driving the switch device according to the fault electrical signal. For example, when the switch device fails due to overcurrent, overvoltage, or overtemperature, the control module 40 outputs a fault electrical signal to control the driving module 50 to block the pulse of the pulse width modulation signal to protect the switch device from being damaged.

[0099] Optionally, the control module 40 includes a state detection unit, which is used to monitor the working state of the switch device. The control module 40 is used to output a fault electrical signal when the state detection unit detects that the switch device has a fault.

[0100] In some embodiments, the state detection unit may be an analog-to-digital acquisition circuit, which can monitor and control the working state of the switch device by acquiring parameters such as voltage, current, and temperature of the driving board 80 in the driving device.

[0101] Please continue reading Figure 1~Figure 2 The driving device further includes a driving board 80. At least one of the power conversion module 30, the control module 40, the driving module 50, the optical fiber transceiver terminal 60, and the pulse shaping module 70 is mounted on the driving board 80, so that the driving board 80 provides support for at least one of the power conversion module 30, the control module 40, the driving module 50, the optical fiber transceiver terminal 60, and the pulse shaping module 70, so that the mechanical fixation of at least one of the power conversion module 30, the control module 40, the driving module 50, the optical fiber transceiver terminal 60, and the pulse shaping module 70 is stable and reliable.

[0102] Optionally, the driving board 80 may be used to transmit the electric energy output by the focusing module 20 to the power conversion module 30 , so as to realize the electrical connection between the power conversion module 30 and the focusing module 20 .

[0103] In some embodiments, the driving board 80 may be a printed circuit board.

[0104] Since the light-concentrating module 20 transmits electric energy to the power conversion module 30 through the driving board 80, the light-concentrating module 20 can be disposed on the driving board 80 and electrically connected to the driving board 80. Since the light-concentrating module 20 needs to receive photons released by the light-emitting module 10, the light-emitting module 10 can be disposed on the light-concentrating module 20, and the light-emitting device 101 is disposed opposite to the photovoltaic cell 201 of the light-concentrating module 20.

[0105] By disposing the focusing module 20 on the driving board 80 and electrically connecting it to the driving board 80, the light-emitting module 10 is disposed on the focusing module 20, and the light-emitting device 101 is arranged directly opposite to the photovoltaic cell 201 of the focusing module 20, so as to improve the efficiency of the concentrator 202 and the photovoltaic cell 201 of the focusing module 20 in receiving photons, and facilitate the output of the electric energy obtained by the focusing module 20 according to the light energy conversion to the power conversion module 30, so as to realize the coordinated work of the focusing module 20, the light-emitting module 10 and the power conversion module 30.

[0106] Optionally, in order to reduce the loss of electric energy in the transmission path, the focusing module 20 may be arranged adjacent to the power conversion module 30 , thereby shortening the electric energy transmission path between the focusing module 20 and the power conversion module 30 .

[0107] Since the optical fiber transceiver terminal 60 needs to communicate with external circuits or devices, the optical fiber transceiver terminal 60 can be set at an end of the driving board 80 away from the focusing module 20 so that the optical fiber transceiver terminal 60 can communicate with external circuits or devices.

[0108] Since the working voltage required by the optical fiber transceiver terminal 60 is provided by the power conversion module 30 , in order to shorten the power transmission path between the power conversion module 30 and the optical fiber transceiver terminal 60 , the power conversion module 30 can be disposed between the optical fiber transceiver terminal 60 and the focusing module 20 .

[0109] Since the operating voltages of the driving module 50, the control module 40 and the pulse shaping module 70 are all provided by the power conversion module 30, in order not to affect the communication between the optical fiber transceiver terminal 60 and the external circuit or device while shortening the power transmission path between the power conversion module 30 and at least one of the driving module 50, the control module 40 and the pulse shaping module 70, the driving module 50, the control module 40 and the pulse shaping module 70 can be arranged between the optical fiber transceiver terminal 60 and the power conversion module 30.

[0110] Since the pulse shaping module 70 is used to shape the signal output by the optical fiber transceiver terminal 60 and then output it to the driving module 50, the pulse shaping module 70 can be set between the optical fiber transceiver terminal 60 and the driving module 50 to shorten the power transmission path between the pulse shaping module 70 and the optical fiber transceiver terminal 60 and the driving module 50.

[0111] It is understandable that the arrangement of the modules in the drive device is not limited to Figure 1 In practical applications, the arrangement of the modules in the drive device can be adjusted according to requirements.

[0112] It should be noted that Figure 2 The voltage values ​​shown are only used to assist in understanding the present application and are not used to limit the present application. In actual applications, the voltage values ​​may be set differently according to actual conditions.

[0113] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A driving device, characterized in that: include: A light-emitting module, comprising at least one light-emitting device; A light concentrator module, comprising at least one photovoltaic cell and at least one concentrator, wherein the concentrator is used to absorb a first group of photons released by the light-emitting device, and output the energy of the first group of photons absorbed to the photovoltaic cell; the photovoltaic cell is used to absorb a second group of photons released by the light-emitting device, and convert the energy of the second group of photons absorbed and the energy output by the concentrator into electrical energy for output; The first group of photons are photons released by the light-emitting device but not absorbed by the photovoltaic cell, and the second group of photons are photons released by the light-emitting device and absorbed by the photovoltaic cell.

2. The driving device according to claim 1, characterized in that: The concentrator is a leaf-shaped luminous solar concentrator.

3. The driving device according to any one of claims 1, characterized in that: The light emitting module comprises a first housing, wherein the first housing comprises a first surface; The focusing module includes a second shell, the second shell includes a first main body and a second main body; the first main body includes a second surface arranged toward the first surface; the second main body is connected to the boundary of the first main body and is located on a side of the first main body close to the first shell, and the second main body includes a first side surface connected to the second surface; The first surface is provided with the light emitting device, the second surface is provided with the photovoltaic cell, and the first side surface is provided with the concentrator.

4. The driving device according to claim 3, characterized in that: The first housing comprises: A first connecting portion including the first surface; a second connection portion connected to a boundary of the first connection portion and located on a side of the first connection portion close to the second shell, the second connection portion comprising a second side surface connected to the first surface; Wherein, the second side surface is provided with a light reflecting portion, and the light reflecting portion is used to reflect the light emitted by the light emitting device to the focusing module.

5. The driving device according to any one of claims 1 to 4, characterized in that: include: The power conversion module is electrically connected to the light focusing module and is used for performing voltage conversion on the voltage output by the light focusing module.

6. The driving device according to claim 5, characterized in that: The driving device further comprises: A driving board, the driving board is used to transmit the electric energy output by the focusing module to the power conversion module; The focusing module is arranged on the driving board and electrically connected to the driving board, the light emitting module is arranged on the focusing module, and the light emitting device is arranged opposite to the photovoltaic cell of the focusing module.

7. The driving device according to claim 5, characterized in that: include: The control module is electrically connected to the power conversion module and is used to receive the voltage output by the power conversion module and provide a control signal to the power conversion module.

8. The driving device according to claim 7, characterized in that: The driving device comprises a driving module, the driving module is electrically connected to the control module, and the driving module is used to generate a driving signal to drive the switch device to switch; The control module comprises a state detection unit, and the state detection unit is used to monitor the working state of the switch device.

9. The driving device according to claim 8, characterized in that: The control module is used to output a fault electrical signal when the state detection unit detects that the switch device fails; The driving module is used to stop driving the switching device according to the fault electrical signal.

10. The driving device according to claim 9, characterized in that: include: An optical fiber transceiver terminal, electrically connected to the control module, for converting the received pulse width modulated optical signal into a modulated electrical signal, and converting the received fault electrical signal into a fault optical signal for output; as well as The pulse shaping module is electrically connected to the optical fiber transceiver terminal and is used to output a square wave signal according to the received modulated electrical signal.

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