Converter and luminaire device

Abstract

This application relates to a converter and a lighting device. The converter includes a base, a circuit board, a first connection module, a second connection module, a third connection module, and a power module. The circuit board, the first connection module, the second connection module, the third connection module, and the power module are mounted on the base and electrically connected to the circuit board. The power module is connected to external AC power through the first connection module, the second connection module is configured to connect to an external dimming control system, and the third connection module is configured to connect to an external lighting fixture. The conversion circuit on the circuit board decodes the dimming signal input from the dimming control system into a PWM control signal and uses the power module to power the lighting fixture. This application can provide power to the lighting fixture through the power module inside the converter, achieving stable power supply. Furthermore, by integrating the power module with the converter, the ease and flexibility of converter installation can be improved.

Description

Technical Field

[0001] This application relates to the field of lighting technology, and more particularly to a converter and lighting equipment. Background Technology

[0002] Currently, most dimming or color-changing drivers on the market have relatively low dimming and color-changing frequencies (approximately 3.2-4kHz). When such drivers are used in dimming control systems, constant-voltage downlights and magnetic track lights within the dimming control system may experience audible noise due to their operating frequencies being within the audio range, thus affecting the user experience.

[0003] The relevant technology adds a constant current module between the lighting fixture and the constant voltage main control system. This constant current module can extract the PWM signal from the input power, and then filter the PWM chopped voltage into a smooth voltage through a capacitor. This voltage is then used to power the subsequent constant current DC-DC dimming circuit. Ultimately, the input low-frequency constant voltage power supply is transformed into a nearly fluctuation-free constant current power supply to achieve constant current drive for the lighting fixture.

[0004] However, for rail lighting fixtures, a low-frequency constant voltage power supply is already connected to the rail before the constant voltage power supply is converted to a constant current power supply, which will still cause system vibration and generate noise. Summary of the Invention

[0005] This application provides a converter to solve the problem that adding a constant current module between the lighting fixture and the constant voltage master control system may still generate noise using conventional methods.

[0006] In a first aspect, this application provides a converter, which includes a base, a circuit board, a first connection module, a second connection module, a third connection module, and a power module. The circuit board, the first connection module, the second connection module, the third connection module, and the power module are disposed on the base, and the first connection module, the second connection module, the third connection module, and the power module are electrically connected to the circuit board. The power module is connected to external AC power via the first connection module, the second connection module is configured to connect to an external dimming control system, and the third connection module is configured to connect to an external lamp. The conversion circuit on the circuit board is used to decode the dimming signal input by the dimming control system into a PWM control signal and use the power module to power the lamp.

[0007] In one embodiment, the base has a receiving space, and the circuit board, the first connection module, the second connection module, the third connection module and the power module are disposed in the receiving space.

[0008] In one embodiment, the seat has a first end and a second end disposed opposite to each other along its length, the first connecting module and the second connecting module are disposed at the first end, and the third connecting module is disposed at the second end.

[0009] In one embodiment, the first connecting module and the second connecting module are sequentially spaced apart at the first end along the width direction of the base.

[0010] In one embodiment, the first end is provided with a first opening and a second opening, the second end is provided with a third opening, the first connecting module is exposed in the first opening, the second connecting module is exposed in the second opening, and the third connecting module is exposed in the third opening.

[0011] In one embodiment, the third connecting module extends along the width direction of the base.

[0012] In one embodiment, the first connection module includes a first bracket and a plurality of first connection terminals, one end of each first connection terminal being disposed on the first bracket and the other end being connected to the circuit board; And / or, the second connection module includes a second bracket and a plurality of second connection terminals, one end of each second connection terminal being disposed on the second bracket and the other end being connected to the circuit board; And / or, the third connection module includes a third bracket and a plurality of third connection terminals, one end of each third connection terminal being disposed on the third bracket and the other end being connected to the circuit board.

[0013] In one embodiment, the power module is disposed at the first end and soldered onto the circuit board.

[0014] In one embodiment, the converter is provided with a push-button switch and an indicator light, which are electrically connected to the circuit board. The push-button switch is used to control the operating state of the power module, and the indicator light is used to indicate the operating state of the power module.

[0015] Secondly, this application provides a lighting device, the lighting device including a dimming control system, a luminaire, and a converter as described in any of the above, wherein the converter is connected to the dimming control system and the luminaire.

[0016] This application provides a converter, which includes a base, a circuit board, a first connection module, a second connection module, a third connection module, and a power module. The circuit board, the first connection module, the second connection module, the third connection module, and the power module are disposed on the base and electrically connected to the circuit board. The power module is connected to external AC power through the first connection module, the second connection module is configured to connect to an external dimming control system, and the third connection module is configured to connect to an external lamp. The conversion circuit on the circuit board is used to decode the dimming signal input from the dimming control system into a PWM control signal and use the power module to power the lamp.

[0017] The converter provided in this application embodiment has a first connection module, a second connection module, a third connection module, and a power supply module electrically connected to a circuit board. The power supply module can be directly connected to external AC power through the first connection module, the second connection module can be connected to an external dimming control system, and the third connection module can be connected to an external lamp. Based on this, the dimming signal input from the dimming control system can be decoded into a PWM control signal and up-frequency processed by the conversion circuit on the circuit board, effectively avoiding electromagnetic vibration in the audio range and thus eliminating audible noise. At the same time, since the original dimming control system only serves as a signal input, the lamp power supply no longer depends on the power output capability of the dimming control system. Instead, the lamp is powered by an independent power supply module inside the converter, realizing physical and electrical isolation between the control signal and the power supply, thereby achieving stable power supply and improving the problem that the lamp cannot work properly due to insufficient output power of the dimming control system in traditional technology.

[0018] In addition, since the power module is located inside the converter, that is, integrated with the converter, the converter can be directly connected to the external mains power through the first connection module 300 without the need for an additional independent power module. This reduces the number of power cables, simplifies the wiring layout, saves wiring space, and improves the convenience and flexibility of installation. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0022] Figure 1 This is a schematic diagram of the structure of a lighting device provided in an embodiment of this application; Figure 2 This is a schematic diagram of the structural assembly of a converter provided in an embodiment of this application; Figure 3 This is a partial structural exploded view of a converter provided in an embodiment of this application; Figure 4 This is a schematic diagram illustrating the installation of a portion of the structure in a converter, as provided in an embodiment of this application. Figure 5 This is a schematic diagram showing the installation of the circuit board and various connection modules provided in the embodiments of this application; Figure 6 This is a schematic diagram illustrating the installation of the circuit board, push-button switch, and indicator light provided in an embodiment of this application. Figure 7 This application provides a schematic diagram of the structure of a push-button switch and an indicator light for embodiments of the present application; Figure 8 This is a schematic diagram of the structure of the first connection module provided in an embodiment of this application; Figure 9 This is a schematic diagram of the structure of the second connection module provided in an embodiment of this application; Figure 10 This is a schematic diagram of the structure of the third connection module provided in an embodiment of this application.

[0023] Explanation of reference numerals in the attached figures: Lighting equipment 01, converter 10, base 100, receiving space 101, first end 102, second end 103, first housing 110, second housing 120, first opening 131, second opening 132, circuit board 200, power module 201, conversion circuit 210, signal decoupling module 220, control unit 230, dimming drive module 240, short circuit protection module 250, power supply module 260, first connection module 300, first bracket 310, first connection terminal 320, second connection module 400, second bracket 410, second connection terminal 420, third connection module 500, third bracket 510, third connection terminal 520, push button switch 600, indicator light 700, dimming control system 30, lighting fixture 40. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0026] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0027] To address the issue that existing technologies may still generate noise even when adding a constant current module between the luminaire and the constant voltage main control system, this application provides a converter that effectively avoids electromagnetic vibrations within the audio range, thereby eliminating audible noise. Furthermore, it provides power to the luminaire through an external independent power module, achieving stable power supply and improving the problem of insufficient output power from the dimming control system causing the downstream luminaire to malfunction due to insufficient power output from the dimming control system in traditional technologies.

[0028] See Figure 1 and Figure 2This application provides a lighting device 01, which includes a dimming control system 30, a lamp 40, and a converter 10 as described in the following embodiments, wherein the converter 10 is connected to the dimming control system 30 and the lamp 40.

[0029] See Figures 2-10 ,like Figures 2-5 As shown, the converter 10 provided in this application includes a base 100, a circuit board 200, a first connection module 300, a second connection module 400, a third connection module 500, and a power module 201. The circuit board 200, the first connection module 300, the second connection module 400, the third connection module 500, and the power module 201 are disposed on the base 100, and the first connection module 300, the second connection module 400, the third connection module 500, and the power module 201 are electrically connected to the circuit board 200. The first connection module 300 is configured to connect to an external mains power supply, the second connection module 400 is configured to connect to an external dimming control system 30, and the third connection module 500 is configured to connect to an external lamp 40. The conversion circuit 210 on the circuit board 200 is used to decode the dimming signal input from the dimming control system 30 into a PWM control signal and use the power supply module 201 to power the lamp 40.

[0030] The power module 201 is mainly used to convert the input voltage of the external mains power into the working voltage of the lamp 40 to provide a stable energy output. The power module 201 supports multiple input forms, such as 220V AC mains power (220Vac) or DC power supply, which can be flexibly selected according to the actual application scenario. This application does not limit the specific input form.

[0031] In some embodiments, the conversion circuit 210 deployed on the circuit board 200 includes a power module 201, a signal decoupling module 220, a control unit 230, and a dimming drive module 240. The input terminal of the power module 201 is connected to external AC power via a first connection module 300, and the output terminal of the power module 201 is connected to the dimming drive module 240, the signal decoupling module 220, and the control unit 230. An external dimming control system 30 is connected to the input terminal of the signal decoupling module 220 via a second connection module 400. The control unit 230 is connected to the output terminal of the signal decoupling module 220 and the input terminal of the dimming drive module 240. It is used to upscale the PWM signal output by the signal decoupling module 220 and send the upscaled PWM signal to the dimming drive module 240. The output terminal of the dimming drive module 240 is connected to the external lamp 40 through the third connection module 500.

[0032] The signal decoupling module 220 serves the functions of safety isolation and interference isolation.

[0033] Specifically, safety isolation is mainly to avoid the safety hazards caused by the original dimming control signal being a non-isolated AC signal. Specifically, the decoupling module uses a high-speed optocoupler to electrically isolate the original signal from the control unit 230, preventing safety hazards caused by the input being a non-isolated signal.

[0034] Interference isolation refers to the use of isolation optocouplers in decoupling modules to isolate the grounds of two different power supplies, preventing input interference from the signal terminals.

[0035] In one embodiment, the external luminaire 40 is a multi-color temperature luminaire 40. The signal decoupling module 220 includes a signal input connector CON3 and multiple color temperature signal decoupling branches. The signal input connector CON3 is connected to an external dimming control system 30. The control unit 230 has multiple PWM signal input terminals and multiple PWM signal output terminals. The dimming drive module 240 includes a power connector CON2, a signal connector CON1, and multiple color temperature chopper circuits. The color temperature signal decoupling branches, the PWM signal input terminals, and the PWM signal output terminals are connected to the color temperature chopper circuits one by one. The power connector CON2 is connected between the power module 201 and the multiple color temperature chopper circuits. The input terminal of the signal connector CON1 is connected to the multiple color temperature chopper circuits, and the output terminal of the signal connector CON1 is connected to the external luminaire 40.

[0036] For example, the external lamp 40 is a dual-color temperature lamp, the signal decoupling module 220 includes a signal input connector CON3, a first color temperature signal decoupling branch and a second color temperature signal decoupling branch, multiple PWM signal input terminals including a first PWM signal input terminal and a second PWM signal input terminal, multiple PWM signal output terminals including a first PWM signal output terminal and a second PWM signal output terminal, the signal input connector CON3 is connected to an external dimming control system 30, the first color temperature signal decoupling branch is connected to the first PWM signal input terminal, and the second color temperature signal decoupling branch is connected to the second PWM signal input terminal.

[0037] In traditional solutions, the constant current driver added to suppress noise typically only supports single-color temperature luminaires 40. In dual-color temperature or multi-color temperature applications (e.g., integrating both warm white and cool white LEDs within a single luminaire 40), each color temperature channel requires an independent constant current driver. This means a single dual-color temperature luminaire needs to connect to two constant current drivers, which not only complicates wiring and installation but also significantly increases system cost and space requirements.

[0038] This application only requires adding an independent power supply module 201 and an integrated converter 10 between the existing dimming control system 30 and the lamp 40 to achieve unified control of the multi-color temperature lamp 40. The conversion circuit 210 in the converter 10 decodes, boosts, and synchronously reconstructs the input low-frequency PWM dimming / color temperature signal through a core control algorithm, outputting a high-frequency, noise-free drive signal that can accurately follow the dimming and color temperature adjustment commands of the original system.

[0039] Therefore, this application does not require a separate constant current driver for each color temperature channel. It can drive multi-channel (such as dual color temperature) LED loads simply through the integrated converter 10 (which has an independent power supply module 201 inside), which greatly simplifies the system architecture, reduces the transformation cost, and at the same time takes into account quiet operation and high-fidelity dimming and color adjustment performance.

[0040] In one embodiment, the signal decoupling module 220 in the converter 10 can connect multiple discharge resistors in parallel at the input signal terminal to accelerate the voltage drop speed of the falling edge and improve the steepness of the falling edge. This improves the problem that the original low-frequency drive output signal in the no-load state is not a standard PWM waveform, and its falling edge voltage decays slowly, resulting in a non-steep edge.

[0041] In one embodiment, the signal decoupling module 220 in the converter 10 may further include multiple Zener diodes, each corresponding to a color temperature signal decoupling branch. Each color temperature signal decoupling branch is connected to the signal input connector through a corresponding Zener diode. This allows only the high-level portion to be turned on, effectively filtering out low-level noise and non-ideal waveforms.

[0042] The signal decoupling module 220 in converter 10 shapes the signal through a discharge resistor unit and a Zener diode, so that the output signal is a standard PWM waveform. Then, it is transmitted to the control unit 230 through a high-speed optocoupler chip. This not only achieves electrical decoupling between signal and power, but also preserves the integrity and timing accuracy of the original control signal to the greatest extent possible thanks to the ultra-fast response characteristics of the optocoupler.

[0043] In one embodiment, the control unit 230 may be configured with multiple multi-channel timers for signal acquisition and drive output, respectively. One timer is used to generate a high-frequency PWM drive signal; the other timers are used to capture the rising and falling edge times of the external input PWM signal, thereby accurately calculating its duty cycle.

[0044] Specifically, if the control unit 230 does not detect a rising or falling edge within two consecutive input PWM cycles, it determines the duty cycle to be 100% (continuous high level) or 0% (continuous low level) based on the current signal level in order to deal with signal loss or static dimming state.

[0045] To further improve signal reliability, in some embodiments, the control unit 230 can also filter the acquired duty cycle data: first, it uses amplitude limiting and de-jitter filtering to remove outliers caused by interference or contact jitter; then, it uses moving average filtering to smooth the data change trend and suppress random noise.

[0046] Ultimately, the duty cycle of the high-frequency PWM signal output by the control unit 230 is consistent with the acquired input duty cycle, thereby maintaining the same dimming effect as the original driver. The frequency should be within the range that is difficult for the human ear to hear, such as 16KHz and above, in order to solve the noise problem of the lamp 40.

[0047] In one embodiment, the conversion circuit 210 further includes a short-circuit protection module 250, the input of which is connected to the output of the dimming drive module 240, and the output of which is connected to the control unit 230.

[0048] In one embodiment, such as Figure 1 As shown, the conversion circuit also includes a power supply module 260, the input terminal of which is connected to the power supply module 201, and the output terminal of which is connected to the control unit 230, the signal decoupling module 220, and the short-circuit protection module 250.

[0049] In one embodiment, the power supply module 260 includes a step-down branch and a voltage regulator branch. The input terminals of the step-down branch and the voltage regulator branch are both connected to the power supply module 201. The output terminal of the step-down branch is connected to the positive power supply pin of the control unit 230 and the positive power supply pin of the short-circuit protection module 250. The output terminal of the voltage regulator branch is connected to the signal decoupling module 220.

[0050] Specifically, the buck branch includes a buck converter control chip U4 (i.e., a BUCK circuit control chip), and the voltage regulation branch includes a linear voltage regulator chip U7, which is used to provide a suitable and stable voltage for the signal decoupling module.

[0051] Since the dimming driver module 240 is to supply power to the lamp 40, the dimming driver module 240 requires a relatively high voltage and can be directly connected to the power supply module 201. However, the control unit 230, the signal decoupling module 220, and the short-circuit protection module 250 use low voltage. Therefore, the control unit 230, the signal decoupling module 220, and the short-circuit protection module 250 need to be connected to the power supply module 201 through the power supply module 260.

[0052] Thus, the buck converter control chip U4 can be used to convert the voltage output by the power module 201 into a stable operating voltage required by the control unit 230 and the short-circuit protection module 250; while the linear regulator chip U7 can be used to provide a suitable and stable voltage for the signal decoupling module 220.

[0053] In one embodiment, the base 100 is provided with a receiving space 101, and the circuit board 200, the first connection module 300, the second connection module 400, the third connection module 500 and the power module 201 are disposed in the receiving space 101.

[0054] In this way, by integrating the circuit board 200, power module 201 and various connection modules into the housing space 101 of the base 100, the internal electronic components can be effectively protected from external environmental factors such as dust, moisture and mechanical impact, thereby improving the operational stability and service life of the converter 10.

[0055] See Figures 2-4 In one embodiment, the seat 100 includes a first housing 110 and a second housing 120, the first housing 110 being detachably connected to the second housing 120, and the first housing 110 and the second housing 120 enclosing the receiving space 101.

[0056] First, the detachable double-shell structure allows for easy opening of the base 100 during production assembly, on-site installation, or later maintenance to inspect, replace, or repair the internal circuit boards 200, terminals, or other electronic components, thus improving the product's maintainability and ease of use.

[0057] Secondly, the split-shell design simplifies the assembly process of internal components, allowing for operations such as fixing the circuit board 200 and connecting cables while the shell is open, thus improving production efficiency and assembly accuracy. At the same time, it also facilitates modular manufacturing and standardized assembly, reducing production costs.

[0058] In addition, the closed containment space 101 formed by the tight fit between the first housing 110 and the second housing 120 can effectively isolate external dust, moisture and foreign objects from entering when closed, ensuring the reliability of internal electrical connections and the stability of long-term operation, thereby improving the safety and environmental adaptability of the converter 10.

[0059] In one embodiment, the seat 100 has a first end 102 and a second end 103 disposed opposite to each other along its length direction, the first connecting module 300 and the second connecting module 400 are disposed at the first end 102, and the third connecting module 500 is disposed at the second end 103.

[0060] First, by arranging the input interface (power supply and dimming signal) and the output interface (lamp 40 connection) at opposite ends of the base 100, effective physical isolation between the input circuit and the output circuit is achieved, reducing the impact of power supply interference on the dimming signal and improving the stability of signal transmission and the electromagnetic compatibility (EMC) performance of the system.

[0061] Secondly, this side-by-side arrangement helps optimize the internal circuit wiring path, avoids input and output cables crossing or running in parallel inside, thereby reducing electromagnetic coupling and potential electrical interference, and improving overall operational reliability.

[0062] In addition, during installation and maintenance, users can clearly distinguish between the input and output terminals, which facilitates standardized wiring, quick troubleshooting, and reduces the risk of incorrect connections. At the same time, this layout also facilitates neat wiring with "one end in, the other end out" in typical lighting application scenarios such as track lights and recessed lights, improving the aesthetics of system integration.

[0063] In one embodiment, the first connecting module 300 and the second connecting module 400 are sequentially spaced apart at the first end 102 along the width direction of the base 100.

[0064] First, the first connection module 300 for connecting to the external mains power and the power module 201 and the second connection module 400 for receiving the dimming signal are arranged in an orderly and spaced manner on the same side along the width direction of the base 100. This effectively avoids spatial interference between the plug terminals, making it easier for users to connect the power cord and signal line separately in a small installation space, thus improving the convenience of on-site wiring and operational safety.

[0065] Secondly, this linear spacing arrangement helps to achieve clear partitioning and standardized routing of input lines (power and control signals), reducing the risk of wiring errors, and also facilitates standardized installation and subsequent maintenance identification.

[0066] In one embodiment, such as Figure 1, Figure 4 and Figure 5 As shown, the first end 102 is provided with a first opening 131, the second end 103 is provided with a second opening 132, the first connecting module 300 and the second connecting module 400 are exposed in the first opening 131, and the third connecting module 500 is exposed in the second opening 132.

[0067] In other embodiments, the first end 102 may be provided with a first opening and a second opening, the second end 103 may be provided with a third opening, the first connecting module 300 is exposed in the first opening, the second connecting module 400 is exposed in the second opening, and the third connecting module 500 is exposed in the third opening.

[0068] Thus, by providing dedicated openings at the first end 102 and the second end 103 of the housing that correspond one-to-one with each connecting module, users can quickly and intuitively perform plug-in operations, improving the convenience of installation and maintenance.

[0069] In one embodiment, the third connection module 500 extends along the width direction of the base 100.

[0070] See Figure 1 , Figures 5-7 In one embodiment, the converter 10 is provided with a push-button switch 600 and an indicator light 700. The push-button switch 600 and the indicator light 700 are electrically connected to the circuit board 200. The push-button switch 600 is used to control the working state of the power module 201 (such as power on / off, start / stop), and the indicator light 700 can provide real-time feedback on the working state of the power module 201 (such as power on / off, start / stop) and the system (such as standby, running, fault or communication status).

[0071] Users can directly control the power supply of the internal power module 201 of the converter 10 via local physical buttons without relying on an external controller or disassembling the device, thus improving the convenience and safety of using the converter 10.

[0072] See Figure 1 , Figure 5 In one embodiment, the power module 201 is disposed at the first end 102 and soldered onto the circuit board 200.

[0073] Since the power module 201 is located at the first end 102, it can be closer to the first connection module 300, which makes the connection path between the power module 201 and the first connection module 300 shorter. It does not require long-distance wiring or detours, and avoids wire entanglement, crossing or detours caused by the power module 201 being far away from the first connection module 300. This effectively reduces the line inductance and resistance, and improves power conversion efficiency and electromagnetic compatibility (EMC) performance.

[0074] The power module 201 is usually the main heat-generating unit in the system. Placing it at the first end 102 near the housing facilitates the direct conduction of heat to the external environment through the housing, avoids heat accumulation in the control circuit area, and improves the overall thermal management performance.

[0075] See Figure 5 , Figure 8 In one embodiment, the first connection module 300 includes a first bracket 310 and a plurality of first connection terminals 320, one end of each first connection terminal 320 being disposed on the first bracket 310 and the other end being connected to the circuit board 200.

[0076] See Figure 5 , Figure 9 In one embodiment, the second connection module 400 includes a second bracket 410 and a plurality of second connection terminals 420, with one end of each second connection terminal 420 disposed on the second bracket 410 and the other end connected to the circuit board 200.

[0077] In some embodiments, the structure of the second connection module 400 may be the same as that of the first connection module 300, or it may adopt a different structural design.

[0078] See Figure 5 , Figure 10 In one embodiment, the third connection module 500 includes a third bracket 510 and a plurality of third connection terminals 520, with one end of each third connection terminal 520 disposed on the third bracket 510 and the other end connected to the circuit board 200.

[0079] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0080] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0081] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0082] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0083] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0084] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0085] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Since these modifications and variations fall within the scope of the claims and their equivalents, this application also intends to include these modifications and variations.

[0086] The above description describes specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A converter characterized by, The converter includes a base, a circuit board, a first connection module, a second connection module, a third connection module, and a power module. The circuit board, the first connection module, the second connection module, the third connection module, and the power module are disposed on the base, and the first connection module, the second connection module, the third connection module, and the power module are electrically connected to the circuit board. The power module is connected to external AC power via the first connection module, the second connection module is configured to connect to an external dimming control system, and the third connection module is configured to connect to an external lamp. The conversion circuit on the circuit board is used to decode the dimming signal input by the dimming control system into a PWM control signal and use the power module to power the lamp.

2. The converter of claim 1, wherein, The base has an accommodating space, and the circuit board, the first connecting module, the second connecting module, the third connecting module and the power module are disposed within the accommodating space.

3. The converter according to claim 1, characterized in that, The base has a first end and a second end that are disposed opposite to each other along its length direction. The first connecting module and the second connecting module are disposed at the first end, and the third connecting module is disposed at the second end.

4. The converter according to claim 3, characterized in that, The first connecting module and the second connecting module are sequentially spaced apart at the first end along the width direction of the base.

5. The converter according to claim 3, characterized in that, The first end has a first opening and a second opening, the second end has a third opening, the first connecting module is exposed in the first opening, the second connecting module is exposed in the second opening, and the third connecting module is exposed in the third opening.

6. The converter according to claim 1, characterized in that, The third connecting module extends along the width direction of the base.

7. The converter according to claim 1, characterized in that, The first connection module includes a first bracket and a plurality of first connection terminals, one end of each first connection terminal is disposed on the first bracket, and the other end is connected to the circuit board; And / or, the second connection module includes a second bracket and a plurality of second connection terminals, one end of each second connection terminal being disposed on the second bracket and the other end being connected to the circuit board; And / or, the third connection module includes a third bracket and a plurality of third connection terminals, one end of each third connection terminal being disposed on the third bracket and the other end being connected to the circuit board.

8. The converter according to claim 3, characterized in that, The power module is located at the first end and soldered onto the circuit board.

9. The converter according to claim 1, characterized in that, The converter is equipped with a push-button switch and an indicator light. The push-button switch and the indicator light are electrically connected to the circuit board. The push-button switch is used to control the working status of the power module, and the indicator light is used to indicate the working status of the power module.

10. A lighting device, characterized in that, The lighting equipment includes a dimming control system, a luminaire, and a converter as described in any one of claims 1-9, wherein the converter is connected to the dimming control system and the luminaire.

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