Low-voltage lighting driver

Abstract

The utility model relates to the technical field of lighting, in particular to a low-voltage lighting driver, which comprises a transformer, a controller, a power supply, a power plug and a wiring terminal block, a first zero line led out by the power plug is electrically connected with the transformer, a first ground wire led out by the power plug is electrically connected with the transformer and the power supply respectively, and a first live wire led out by the power plug is electrically connected with the power supply; a control and power line led out from the controller is electrically connected with the power supply device; a first control line led out from the power supply is electrically connected with the transformer; a second ground wire led out from the transformer and a plurality of power lines with different voltage grades are electrically connected with the wiring terminal block respectively; the problems that an existing driver is poor in anti-interference capacity and cannot adapt to long-term outdoor use are solved.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and in particular to a low-voltage lighting driver. Background Technology

[0002] Current low-voltage lighting drivers typically integrate the controller, sensor, transformer, and power module onto the same circuit board. This can lead to problems such as heat concentration, electromagnetic interference, and difficulties in module upgrades and maintenance. In particular, when the driver is exposed to the outdoor environment for a long time, the modules are susceptible to corrosion, affecting their service life and performance. Utility Model Content

[0003] To address the aforementioned shortcomings, the purpose of this invention is to propose a low-voltage lighting driver that solves the problem of poor anti-interference capability and inability to adapt to long-term outdoor use of current drivers.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A low-voltage lighting driver includes a transformer, a controller, a power supply, a power plug, and a terminal block; a first neutral wire from the power plug is electrically connected to the transformer, a first ground wire from the power plug is electrically connected to both the transformer and the power supply, and a first live wire from the power plug is electrically connected to the power supply.

[0006] The control and power lines leading out from the controller are electrically connected to the power supply.

[0007] The first control line from the power supply is electrically connected to the transformer.

[0008] The second ground wire and multiple power lines of different voltage levels drawn from the transformer are electrically connected to the terminal block.

[0009] Furthermore, it also includes an external light control sensor; the signal line led out from the external light control sensor is electrically connected to the controller, and the external light control sensor is used externally.

[0010] Furthermore, the controller is equipped with a built-in light sensor.

[0011] Furthermore, the first neutral wire, the first ground wire, the first live wire, and the first control wire are all equipped with closed terminals.

[0012] Furthermore, after the transformer is installed inside the low-voltage lighting driver housing, it is sealed and fixed with plastic encapsulation material.

[0013] Furthermore, the second ground wire is equipped with a circuit breaker.

[0014] Furthermore, the first neutral wire, the first ground wire, the first live wire, the control and power line, the first control line, the second ground wire, and the power line all use weather-resistant conductors.

[0015] Furthermore, the signal line uses weather-resistant wire.

[0016] The technical solution provided by this utility model can include the following beneficial effects: the transformer, controller, power supply, power plug and terminal block adopt a separate electrical connection structure, and the controller (e.g., a control circuit integrating MCU, digital tube and button components) and the power supply (e.g., an integrated power conversion circuit that converts the voltage from the power plug into a low voltage to power the controller) are independently packaged or independent products, which can be individually packaged and protected (e.g. waterproof / dustproof) for different modules, extending outdoor service life; it also facilitates the disassembly and replacement of each module, reducing maintenance costs; at the same time, it can avoid heat concentration and electromagnetic interference. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of one embodiment of the present invention.

[0018] Among them: transformer 1, controller 2, power supply 3, power plug 4, terminal block 5, first neutral wire 41, first ground wire 42, first live wire 43, control and power line 21, first control line 31, second ground wire 11, power line 12, external light control sensor 6, signal line 61, closed terminal 7, circuit breaker 111. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of embodiments of this utility model, 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 indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral 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 the embodiments of this utility model according to the specific circumstances.

[0022] The following is combined Figure 1 This describes a low-voltage lighting driver according to an embodiment of the present invention.

[0023] A low-voltage lighting driver includes a transformer 1, a controller 2, a power supply 3, a power plug 4, and a terminal block 5; the first neutral wire 41 of the power plug 4 is electrically connected to the transformer 1, the first ground wire 42 of the power plug 4 is electrically connected to the transformer 1 and the power supply 3 respectively, and the first live wire 43 of the power plug 4 is electrically connected to the power supply 3.

[0024] The control and power lines 21 from controller 2 are electrically connected to power supply 3;

[0025] The first control line 31 from the power supply 3 is electrically connected to the transformer 1;

[0026] The second ground wire 11 and multiple power lines 12 of different voltage levels led out from transformer 1 are electrically connected to terminal block 5.

[0027] This utility model proposes a preferred embodiment of a low-voltage lighting driver, such as... Figure 1 As shown, transformer 1, controller 2, power supply 3, power plug 4, and terminal block 5 adopt a separate electrical connection structure. Controller 2 (e.g., a control circuit integrating MCU, digital tube, and buttons) and power supply 3 (e.g., an integrated power conversion circuit that converts the voltage from power plug 4 into a low voltage to power controller 2) are independently packaged or separate products. This allows for individual encapsulation and protection (e.g., waterproof / dustproof) for different modules, extending their outdoor service life. It also facilitates the disassembly and replacement of modules, reducing maintenance costs. Furthermore, it avoids heat concentration and electromagnetic interference.

[0028] It should be noted that transformer 1 can convert voltages of different levels, such as 12V or 15V, to the terminal block 5, so that the terminal block 5 can be connected to multiple lamps at the same time.

[0029] Furthermore, it also includes an external light control sensor 6; the signal line 61 led out from the external light control sensor 6 is electrically connected to the controller 2, and the external light control sensor 6 is used externally.

[0030] In this embodiment, the external sensor 6 is electrically connected to the controller 2 via signal line 61. It can be independently arranged in a light-sensitive area (such as the driver's heat dissipation window) or outside the driver, which facilitates the identification of light intensity outside the driver and improves the light control accuracy of the controller 2. This allows the controller 2 to control the transformer 1 through the power supply 3 to switch the lamp on and off (for example, when the LUX value reaches 5-70 Lux at night, the load lamp is turned on, and when the LUX value reaches 80-400 Lux at daylight, the load lamp is turned off).

[0031] In addition, controller 2 has a timing function; when the power of the low-voltage lighting driver is less than 300W, the timing function of controller 2 is accurate to the hour; when the power of the low-voltage lighting driver is greater than or equal to 300W, the timing function of controller 2 is accurate to the minute; because the low-voltage lighting driver generally has the following timing functions after being equipped with light control, controller 2 needs to have a timing function:

[0032] (1) Automatic on / off mode

[0033] In this mode, at dusk, the light sensor detects that the ambient light in the surrounding area has reached the start-up light level (5-70 Lux), and controller 2 outputs a signal to control power supply 3 to turn on the light. At dawn, the light sensor detects that the ambient light in the surrounding area has reached the stop-up light level (80-300 Lux), and controller 2 outputs a signal to control power supply 3 to turn off the light. If the ambient light reaches the stop-up light level (Lux), the luminaire needs to delay for 60 seconds before turning off.

[0034] (2) Time Mode

[0035] In this mode, at dusk, the light sensor detects that the ambient light in the surrounding area has reached the activation light level (5-70 Lux), and the controller 2 outputs a signal to control the power supply 3 to start supplying power. When the preset delay time of the controller 2 is reached (displayed as "9", "8"... "1", representing a delay of 9 hours, 8 hours... 1 hour respectively), the controller 2 outputs a signal to control the power supply 3 to output power and turn off the lights.

[0036] At the same time, considering the economic factors of energy consumption and cost:

[0037] (1) When the load power of the lamp is large (≥300W):

[0038] High energy consumption: High-power lighting fixtures (such as industrial lighting and stadium lights) consume a significant amount of electricity per day. Minute-level control can avoid unnecessary long-term operation. For example, reducing ineffective lighting by 30 minutes per day can save hundreds of yuan in electricity bills per year.

[0039] High marginal benefits: Minute-level precision has a more significant effect on energy consumption optimization. For example, when factory shift changes or event venues temporarily turn off the lights, fine-grained control can directly reduce operating costs.

[0040] Therefore, its timer function needs to be accurate to the minute.

[0041] (2) When the load power of the lamp is small (<300W):

[0042] Low energy consumption base: Low-power devices such as courtyard lights and corridor lights have low daily power consumption, and hourly control can meet basic energy-saving needs. The energy-saving benefits of excessively pursuing precision are limited.

[0043] Therefore, its timing function can be accurate to the hour.

[0044] Furthermore, the controller 2 is equipped with a built-in light sensor.

[0045] In this embodiment, the low-voltage lighting driver adopts a combination of built-in and external light control scheme, which can achieve the following control methods:

[0046] (1) When an external light control sensor is electrically connected, the built-in light control sensor does not function;

[0047] (2) The built-in light control sensor only works when the external light control sensor is disconnected.

[0048] Its advantage is that the external light control sensor 6 and its signal line 61 are easily damaged outdoors, and the built-in light control sensor serves as a backup to ensure normal operation. The entire driver will not become unusable due to damage to the external light control sensor.

[0049] Furthermore, the first neutral wire 41, the first ground wire 42, the first live wire 43, and the first control wire 31 are all equipped with closed terminals 7.

[0050] In this embodiment, the closed terminal 7 is also called a closed terminal, wire cap, or nipple wire cap, etc. Its interface supports quick plugging and unplugging, which facilitates quick separation of each module for circuit maintenance or module replacement.

[0051] Furthermore, after the transformer 1 is installed inside the low-voltage lighting driver housing, it is sealed and fixed with plastic encapsulation material.

[0052] In this embodiment, the transformer 1 is encapsulated and fixed with epoxy resin, which can reduce the operating noise of the transformer 1 (i.e., reduce vibration) and prevent corrosion and rusting caused by long-term exposure to air.

[0053] Furthermore, the second ground wire 11 is equipped with a circuit breaker 111.

[0054] In this embodiment, a circuit breaker 111 is provided on the second ground wire 11 to provide protection when the lamp connected to the terminal block 5 is overloaded.

[0055] Furthermore, the first neutral wire 41, the first ground wire 42, the first live wire 43, the control and power supply wire 21, the first control wire 31, the second ground wire 11, and the power supply wire 12 all use weather-resistant conductors.

[0056] Furthermore, signal line 61 uses weather-resistant conductor.

[0057] In this embodiment, weather-resistant conductors, such as cross-linked polyethylene (XLPE) insulated wires, can resist ultraviolet radiation and extreme temperature changes, making them suitable for extreme environments. They also have a certain degree of water resistance, making them ideal for low-voltage lighting drivers that are exposed to outdoor environments for extended periods.

[0058] Other configurations and operations of a low-voltage lighting driver according to an embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0059] In this specification, the terms "embodiment," "example," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer 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.

[0060] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A low-voltage lighting driver, characterized in that: It includes a transformer, a controller, a power supply, a power plug, and a terminal block; the first neutral wire from the power plug is electrically connected to the transformer, the first ground wire from the power plug is electrically connected to both the transformer and the power supply, and the first live wire from the power plug is electrically connected to the power supply. The control and power lines leading out from the controller are electrically connected to the power supply. The first control line from the power supply is electrically connected to the transformer. The second ground wire and multiple power lines of different voltage levels drawn from the transformer are electrically connected to the terminal block.

2. A low-voltage lighting driver according to claim 1, characterized in that: It also includes an external light control sensor; the signal line from the external light control sensor is electrically connected to the controller, and the external light control sensor is used externally.

3. A low-voltage lighting driver according to claim 1, characterized in that: The controller has a built-in light sensor.

4. A low-voltage lighting driver according to claim 1, characterized in that: The first neutral wire, the first ground wire, the first live wire, and the first control wire are all equipped with closed terminals.

5. A low-voltage lighting driver according to claim 1, characterized in that: After the transformer is installed inside the low-voltage lighting driver housing, it is sealed and fixed with plastic encapsulation material.

6. A low-voltage lighting driver according to claim 1, characterized in that: The second ground wire is equipped with a circuit breaker.

7. A low-voltage lighting driver according to claim 1, characterized in that: The first neutral wire, the first ground wire, the first live wire, the control and power line, the first control line, the second ground wire, and the power line all use weather-resistant conductors.

8. A low-voltage lighting driver according to claim 2, characterized in that: The signal line uses weather-resistant conductor.

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