An LED luminaire

Abstract

This utility model discloses an LED lamp, including an LED housing. The LED housing has at least two state selection modules. The LED housing contains an LED constant current drive module, a state switching module, an LED load module, and a power supply module. The power supply module is connected to the lamp switch, the state switching module, and the LED constant current drive module, respectively, and outputs a power-on signal to the state switching module and the LED constant current drive module according to the on / off state of the lamp switch. The LED constant current drive module is connected to the LED load module. The state selection module has multiple state adjustment circuits and a switching switch. The state switching module is connected to the state selection module and cycles through different state selection modules based on each power-on signal to adjust the working state of the LED load module. This utility model enables the lamp to have multiple different state switching functions, and can cycle through the color temperature state of the lamp according to the on / off state of the lamp switch. Furthermore, it is simple to operate and low in cost.

Description

Technical Field

[0001] This utility model relates to the field of LED technology, and in particular to an LED lamp. Background Technology

[0002] With continuous technological advancements, LED lighting products have become commonplace in households. Currently, LED lighting products sold on the market can be broadly categorized as follows:

[0003] 1. Some LED lights use DIP switches for color temperature selection. Since these lights are usually installed on the ceiling, users need to use a ladder to climb onto the ceiling to control the DIP switch to switch to other color temperatures. This type of light is difficult to adjust, especially in rooms with high ceilings.

[0004] 2. Some LED lights use Bluetooth or Wi-Fi connectivity, allowing customers to connect to the lights using remote controls or mobile phones to control LED load modules with different color temperatures, achieving various color temperature effects. However, these types of LED lights are complex in structure and expensive, making them inaccessible to low-income consumers and those unfamiliar with electronic devices. Furthermore, using an app would pose significant challenges for international promotion, especially with US customers, requiring substantial investment in app development.

[0005] Therefore, there is an urgent need for a cost-effective LED lighting fixture that allows for easy color temperature switching, is simple to use, and is user-friendly for both overseas distributors and customers. Specifically, based on the actual distribution and installation scenarios of US customers, this application aims to provide an LED lighting fixture that can be pre-set with multiple color temperature levels or functions (e.g., three or more). When a US distributor receives the product and installs it for a user, they can select two or more color temperature levels to complete the installation. This allows the wall switch to quickly cycle through two or more preset color temperatures, enabling the user to switch between the two or more color temperatures pre-selected by the distributor during installation. Furthermore, the wall switch is a conventional lighting switch, allowing normal operation to maintain the on / off function of the light fixture. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide an LED lamp that is easy to operate, and can switch the working state of multiple state switching modules of the lamp according to the user's preference, so that the lamp has multiple different state switching functions. At the same time, the working state of the lamp can be cyclically switched according to the on and off state of the lamp switch to provide different color temperature effects, improve the user's multi-color temperature experience, and has a simple structure and low cost.

[0007] To address the aforementioned technical problems, this utility model provides an LED lamp, including an LED housing. The LED housing has at least two state selection modules. The LED housing contains an LED constant current drive module, a state switching module, an LED load module, and a power supply module. The power supply module is connected to the lamp switch, the state switching module, and the LED constant current drive module, respectively, and outputs a power-on signal to the state switching module and the LED constant current drive module according to the on / off state of the lamp switch. The LED constant current drive module is connected to the LED load module and outputs a constant current power supply to the LED load module according to the power-on signal to drive the LED load module to operate at a constant current. The state selection module has multiple state adjustment circuits and a switching switch. The switching switch allows the user to pre-select and activate any state adjustment circuit. The activated state adjustment circuit is connected to the LED load module to adjust the operating state of the LED module. The state switching module is connected to the state selection module and cyclically switches between different state selection modules according to each power-on signal to adjust the operating state of the LED load module.

[0008] As an improvement to the above solution, the state switching module includes a color temperature switching chip. The color temperature selection chip includes a power supply pin, a switching detection pin, a ground pin, a power supply pin, and at least two switching path pins. The power supply pin is connected to the power output terminal of the power supply module, and the switching detection pin is connected to the power output terminal of the power supply module to detect the power-on signal of the power supply module. The ground pin and the power supply pin are respectively connected to the ground terminal. The switching path pins are connected one-to-one with the state selection module to cyclically switch the operation of different state selection modules according to each power-on signal, thereby adjusting the working state of the LED load module.

[0009] As an improvement to the above solution, the state switching module includes a color temperature control chip and a state switching switch circuit. The color temperature control chip includes a power supply pin, a switching detection pin, a ground pin, and at least two switching path pins. The power supply pin is connected to the power output terminal of the power supply module, and the switching detection pin is also connected to the power output terminal of the power supply module. It is used to detect the power-on signal of the power supply module and control the output state of the corresponding switching path pin according to each power-on signal. The ground pin is connected to the ground terminal. The state switching switch circuit is connected to both the switching path pin and the state selection module. It is used to switch the operation of the corresponding state selection module according to the output state of the switching path pin, thereby adjusting the working state of the LED load module.

[0010] As an improvement to the above solution, the state switching circuit includes at least two switching modules, each of which is configured to correspond one-to-one with the switching path pin; the control terminal of the switching module is connected to the corresponding switching path pin, the first connection terminal of the switching module is connected to the corresponding state selection module, and the other end of the switching module is connected to the ground terminal.

[0011] As an improvement to the above solution, the state selection module is an N-to-1 DIP switch, and the state adjustment circuit includes a single warm color temperature switch path, a single cool color temperature switch path, N-3 mixed color temperature switch paths, and a common connection path. By operating the switching switch on the DIP switch, the single warm color temperature switch path, the single cool color temperature switch path, or any mixed color temperature switch path can be connected to the common connection path for operation. The LED load module includes a first LED load module and a second LED load module. The two warm color temperature pins of the single warm color temperature switch path are respectively connected to a power supply terminal of the second LED load module, and the two cool color temperature pins of the single cool color temperature switch path are respectively connected to a power supply terminal of the first LED load module. The common pin terminal of the common connection path is connected to the corresponding path connection terminal of the state switching module. The two mixing pins of the mixed color temperature switch path are respectively connected to a power supply terminal of the corresponding second LED load module and a power supply terminal of the first LED load module through different color temperature adjustment modules. The multiple mixed color temperature switch paths are used to put the LED load module in different working states.

[0012] As an improvement to the above solution, the color temperature adjustment module includes a resistor module, which includes at least one resistor; one of the resistor modules has its two ends connected to a mixing pin of the color temperature switching path and a power supply terminal of the second LED load module, respectively, and the other resistor module has its two ends connected to a mixing pin of the color temperature switching path and a power supply terminal of the first LED load module, respectively.

[0013] As an improvement to the above solution, the LED constant current driving module includes a constant current driving chip and a sampling module. The sampling module includes at least one sampling resistor. The constant current driving chip includes a power supply pin, an enable pin, a sampling pin, and an output pin. The power supply pin is connected to one power output terminal of the power supply module, the enable pin is connected to the other power output terminal of the power supply module, the sampling pin is connected to the other power terminal and the output pin of the LED load module via the sampling module, and the output pin is connected to the state selection module via the LED load module.

[0014] As an improvement to the above solution, the power supply module includes a rectifier bridge. The first AC input terminal of the rectifier bridge is connected to the live wire output terminal of the lighting switch, and the second AC input terminal of the rectifier bridge is connected to the neutral wire output terminal of the lighting switch. The first DC output terminal of the rectifier bridge is connected to the LED constant current drive module and the state switching module respectively to supply power to the LED constant current drive module and the state switching module. The second DC output terminal of the rectifier bridge is connected to the ground terminal.

[0015] As an improvement to the above solution, the power output terminal of the power supply module is connected to the power supply pin via a voltage conversion module. The voltage conversion module is used to step down and convert the power supply voltage output by the power supply module to the chip power supply voltage and output it to the power supply pin to provide stable power to the color temperature control chip.

[0016] As an improvement to the above solution, both the first LED load module and the second LED load module include at least one LED lamp.

[0017] The beneficial effects of implementing this utility model are as follows:

[0018] This utility model is simple to operate and can switch the working states of multiple state switching modules of the lighting fixture according to the user's preferences, so that the lighting fixture has multiple different state switching functions. At the same time, the power supply module's power-on signal can be cyclically switched according to the on / off state of the lighting fixture switch. The set state switching module can detect the power supply module's power-on signal and cyclically switch different state selection modules to work according to each power-on signal, thereby switching the LED load module to different working states to provide different color temperature effects, thereby improving the user's multi-color temperature experience and meeting the user's multi-color temperature experience needs. Moreover, the structure is simple and the cost is low, meeting the user's low-cost requirements. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the logic structure of the LED lamp of this utility model;

[0020] Figure 2 This is a circuit structure diagram of the first embodiment of the LED constant current drive module, power supply module, state switching module and LED load module of this utility model;

[0021] Figure 3 This is a circuit diagram of the state selection module of this utility model;

[0022] Figure 4 This is a circuit structure diagram of a second embodiment of the LED constant current drive module, power supply module, state switching module and LED load module of this utility model. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.

[0024] like Figure 1 As shown, a specific embodiment of this utility model provides an LED housing 99, which is provided with at least two state selection modules 2, and the LED housing 99 is provided with an LED constant current drive module 1, a state switching module 3, an LED load module 4 and a power supply module 6.

[0025] The power supply module 6 is connected to the lamp switch 5, the state switching module 3 and the LED constant current drive module 1 respectively, and is used to output a power-on signal to the state switching module 3 and the LED constant current drive module 1 according to the on / off state of the lamp switch 5.

[0026] The LED constant current driving module 1 is connected to the LED load module 4 and is used to output constant current power to the LED load module 4 according to the power-on signal, so as to drive the LED load module 4 to work at constant current.

[0027] The state selection module 2 is provided with multiple state adjustment circuits 21 and switching switches 22. The switching switches 22 are used for users to switch any state adjustment circuit 21 to work in advance. The activated state adjustment circuit 21 is connected to the LED load module 4 and is used to adjust the working state of the LED module.

[0028] The state switching module 3 is connected to the state selection module 2 and is used to cycle through different state selection modules 2 according to each power-on signal to adjust the working state of the LED load module 4.

[0029] It should be noted that this application has at least two state selection modules 2 on the LED housing 9, which allows users to switch the working state of multiple state switching modules 3 of the lamp according to their own preferences before or during the installation of the LED lamp. That is, the user adjusts the working state adjustment circuit 21 of each state switching module 3 so that the lamp has multiple different state switching functions.

[0030] Meanwhile, the power supply module 6 can be cyclically switched according to the on / off state of the lamp switch 5. The state switching module 3 can detect the power supply module 6's power supply signal and cyclically switch different state selection modules 2 according to each power supply signal, thereby switching the LED load module 4 to different working states.

[0031] When the light switch 5 changes from open to closed, the power supply module 6 is powered on and can output power to the state switching module 3 and the LED constant current drive module 1. The LED constant current drive module 1 is powered on and outputs a constant current to the LED load module 4. At the same time, the state switching module 3 can control the first state selection module 2 to work according to the power-on signal, so as to adjust the working state of the LED load module 4, such as adjusting the working current of the LED load module 4 to adjust the color temperature state of the LED load module 4, so that the lighting operation of the LED load module 4 is in the first color temperature state.

[0032] When the light switch 5 is turned off and then turned back on, the power supply module 6 is powered on again and supplies power to the state switching module 3 and the LED constant current drive module 1. At this time, the LED constant current drive module 1 is powered on and outputs a constant current to the LED load module 4. The state switching module 3 switches and controls the second state selection module 2 to work according to the next power-on signal, so as to continue to adjust the working state of the LED load module and make the lighting operation of the LED load module 4 be in the second color temperature state.

[0033] As described above, as the lamp switch 5 cycles through opening and closing, the power supply module 6 cyclically provides power-on signals. The state switching module 3 switches its operation sequentially from the first state selection module 2 to the last state selection module 2, and then cycles again to achieve cyclic color temperature switching. This allows the LED load module 4 to be cyclically controlled to be in different color temperature states, improving the multi-color temperature switching effect of the lamp and meeting the user's multi-color temperature experience needs. Moreover, it does not require a built-in wireless communication module for wireless switching control, making the overall operation simple and easy for users to operate. At the same time, the simple structure and low cost meet the user's low-cost requirements.

[0034] like Figures 2 to 3 As shown, Figures 2 to 3 The circuit diagram of the first embodiment of the LED lamp of this utility model is shown. The LED constant current drive module 1, state selection module 2, state switching module 3, and LED load module 4 are described in detail below with reference to this embodiment:

[0035] It should be noted that the LED load module 4 includes a first LED load module 41 and a second LED load module 42 with different color temperatures. The first LED load module 41 is a cool color temperature LED load module, and the second LED load module 42 is a warm color temperature LED load module.

[0036] 1. LED Constant Current Driver Module

[0037] The LED constant current driving module 1 includes a constant current driving chip U1, a sampling module 11, an electrolytic capacitor CE1, and a first resistor R1. The constant current driving chip U1 includes a power supply pin VCC, an enable pin CE, a sampling pin CS, and an output pin LOAD. The power supply pin VCC is connected to the positive power output terminal of the power supply module 6. The enable pin CE is connected to the negative power output terminal of the power supply module 6 via the electrolytic capacitor CE1 and the first resistor R1. The sampling pin CS is connected via the sampling module 11 to another power supply terminal of the first LED load module 41, another power supply terminal of the second LED load module 42, and the output pin LOAD. The output pin LOAD is connected to the state selection module 2 via the first LED load module 41 and the second LED load module 42. Both the first LED load module 41 and the second LED load module 42 include at least one LED.

[0038] It should be noted that when the lamp switch 5 is closed, the positive output terminal of the power supply module 6 outputs power to the power supply pin VCC of the constant current drive chip U1 to power the constant current drive chip U1; the enable pin CE of the constant current drive chip U1 is connected to the negative power output terminal of the power supply module 6, and when the enable pin CE is in a low level state, the constant current drive chip U1 starts to work, and the output pin LOAD outputs a constant current to the first LED load module 41 and the second LED load module 42; when the corresponding state selection module 2 works, it adjusts the working current of the first LED load module 41 and the second LED load module 42, so that the LED load module 4 can achieve the corresponding color temperature state.

[0039] The sampling module 11 includes at least one sampling resistor (RS1 and RS2). The magnitude of the constant current output by the constant current drive chip U1 can be adjusted by adjusting the resistance value in the sampling module 11, which provides high flexibility.

[0040] Furthermore, the power supply module 6 includes a rectifier bridge BD1, a fuse F1, and a voltage regulator RV1. The first AC input terminal of the rectifier bridge BD1 is connected to the live wire output terminal of the lighting switch 5 via the fuse F1, and is also connected to the second AC input terminal of the rectifier bridge BD1 via the voltage regulator RV1. The second AC input terminal of the rectifier bridge BD1 is connected to the neutral wire output terminal of the lighting switch 5. The first DC output terminal of the rectifier bridge BD1 is connected to the LED constant current drive module 1 and the state switching module 3, respectively. The second DC output terminal of the rectifier bridge BD1 is connected to the ground terminal.

[0041] It should be noted that the input AC power is rectified into DC power through the rectifier bridge BD1 to power the LED constant current drive module 1 and the state switching module 3, ensuring the stable operation of each circuit.

[0042] II. State Switching Module 3

[0043] The state switching module 3 includes a color temperature switching chip U2, a second resistor R32, a third resistor R31, a diode D1, and a capacitor C1. The color temperature selection chip U2 includes a power supply pin VCC, a switching detection pin CLK, a ground pin GND, a power supply pin VDD, and at least two switching path pins (D1 and D2).

[0044] The power supply pin VCC is connected to the power output terminal of the power supply module 6 via the third resistor R31. The switching detection pin CLK is connected to the power output terminal of the power supply module 6 via the second resistor R32 and the forward-biased diode D1 in sequence, and is used to detect the power-on signal of the power supply module 6. The ground pin GND is connected to the ground terminal. The power supply pin VDD is connected to the ground terminal via the capacitor C1. The switching path pins (D1 and D2) are connected one-to-one with the state selection module 2, and are used to cycle through the operation of different state selection modules 2 according to each power-on signal, thereby adjusting the working state of the LED load module 4.

[0045] It should be noted that when the lamp switch 5 is closed, the power supply module 6 outputs power to the power supply pin VCC to power on the color temperature switching chip U2. At the same time, the switching detection pin CLK detects the power signal. At this time, the color temperature switching chip U2 controls the switching path pin D1 to connect with the ground pin GND, so that the loop of the state selection module 2 connected to the switching path pin D1 is turned on. The state selection module 2 starts to work and connects to the LED load module 4 through the pre-selected color temperature state adjustment path in the state selection module 2 to adjust the working current of the second LED load module 42 and the first LED load module 41 in the LED load module 4, so that the LED load module 4 achieves the corresponding color temperature state. When the light switch 5 is opened and then closed again, the switching detection pin CLK detects the power signal indicating a power outage and subsequent power restoration. At this time, the color temperature switching chip U2 connects the switching control path pin D2 to the ground pin GND. This activates the loop of the state selection module 2, which is connected to the switching path pin D2. The state selection module 2 then begins operation, adjusting the operating current of the second LED load module 42 and the first LED load module 41 in the LED load module 4 to switch to another color temperature state, thus achieving color temperature switching. Correspondingly, when the user cycles through opening and closing the light switch 5, the color temperature switching chip U2 cycles through the switching path pins D1 and D2, alternately connecting them to achieve color temperature switching for the light fixture and meet the user's multi-color temperature experience needs.

[0046] Preferably, the color temperature switching chip U2 is model S4225MTB, but is not limited thereto.

[0047] III. Status Selection Module 2

[0048] This application includes two state selection modules 2, which are N-to-1 DIP switches (K1 or K2). The state adjustment circuit 21 includes a single warm color temperature switch path 211, a single cool color temperature switch path 212, N-3 mixed color temperature switch paths 213, and a common connection path 214. By operating the toggle switch 22 on the DIP switch (K1 or K2), the single warm color temperature switch path 211, the single cool color temperature switch path 212, or any mixed color temperature switch path 213 can be connected to the common connection path 214. The two warm color temperature pins of the single warm color temperature switch path 211 are respectively connected to the second LED load module. The negative terminal of block 42 is connected, and the two cold color temperature pins of the single cold color temperature switch path 212 are respectively connected to the negative terminal of the first LED load module 41. The common pin of the common connection path 214 is connected to the corresponding path connection terminal of the state switching module 3. The two mixing pins of the mixing color temperature switch path 213 are respectively connected to the corresponding negative terminal of the second LED load module 42 and the negative terminal of the first LED load module 41 through different color temperature adjustment modules 215. Multiple mixing color temperature switch paths 213 are used to put the LED load module 4 in different color temperature states. Wherein, N is a positive integer.

[0049] It should be noted that when the state switching module 3 detects the power supply signal of the power supply module 6, the state switching module 3 automatically connects the corresponding path connection terminal, that is, the corresponding switching path pin is connected to the ground pin GND. At this time, the circuit of the state selection module 2 connected to the switching path pin is connected, and the DIP switch (K1 or K2) is working. When the DIP switch (K1 or K2) on the lamp is in the single warm color temperature switch path 211 or the single cool color temperature switch path 212, the two pins of the single warm color temperature switch path 211 are respectively connected to the second LED load module 42 and connected to the common pin of the common connection path 214, or the two pins of the single cool color temperature switch path 212 are respectively connected to the first LED load module 41 and connected to the common pin of the common connection path 214. At this time, the second LED load module 42 or the first LED load module 41 illuminates independently, presenting a single warm color temperature state or a single cool color temperature state. When the DIP switch (K1 or K2) on the lamp is in the ON position of any color temperature mixing switch path 213, the two mixing pins of the color temperature mixing switch path 213 will be connected to the negative terminal of the corresponding second LED load module 42 and the negative terminal of the first LED load module 41 through the corresponding color temperature adjustment module 215, respectively. At this time, the second LED load module 42 and the first LED load module 41 are working to illuminate, and different color temperature states are formed by mixing the two color temperatures, thereby improving the user experience.

[0050] The system utilizes DIP switches (K1 or K2) to create multiple color temperature switching paths for different color temperature states, such as 6500 / 5000 / 4000 / 3500 / 3000 / 2700K. Users can control any position of the DIP switches (K1 or K2) to open the corresponding path, thus selecting the desired color temperature state from multiple options to meet the color temperature needs of different users. By setting multiple DIP switches (K1 or K2), the state switching module 3 can switch back and forth between various selected color temperature states, achieving a multi-color temperature switching display effect and satisfying users' multi-color temperature experience requirements.

[0051] Preferably, different color temperature states can be set between different state selection modules 2. For example, the color temperature mixing switch path 213 between multiple state selection modules 2 can display different color temperature states to provide users with more color temperature selection options. Users can select the desired color temperature state from each DIP switch (K1 or K2). Thus, in actual operation, the lamp can cycle through different color temperature states required by the user, greatly satisfying the user's color temperature usage needs.

[0052] Preferably, the color temperature adjustment module 215 includes a resistor module, which includes at least one resistor. One resistor module has its two ends connected to a mixing pin of the color temperature mixing switch path 213 and the negative terminal of the second LED load module 42, respectively. The other resistor module has its two ends connected to a mixing pin of the color temperature mixing switch path 213 and the negative terminal of the first LED load module 41, respectively. When either color temperature mixing switch path 213 is turned on, one mixing pin of the color temperature mixing switch path 213 is connected to the first LED load module 41 through a resistor module, and the other mixing pin of the color temperature mixing switch path 213 is connected to the second LED load module 42 through another resistor module, thereby achieving the effect of mixing color temperatures and displaying the corresponding color temperature state.

[0053] The operating current of the first LED load module 41 or the second LED load module 42 can be adjusted by setting resistor modules with different resistance values, thereby adjusting the color temperature state of the first LED load module 41 or the second LED load module 42, thus allowing for the combination of multiple mixed color temperature states, providing high flexibility.

[0054] like Figure 4 As shown, Figure 4 The circuit diagram of the second embodiment of the LED lamp of this utility model is shown. This embodiment is similar to... Figure 2 The first embodiment shown differs in its circuit structure design of the state switching module 3.

[0055] The state switching module 3 of this embodiment includes a fourth resistor R31, a color temperature control chip U2, and a state switching switch circuit 8. The color temperature control chip includes a power supply pin VCC, a switching detection pin (P1), a ground pin GND, and at least two switching path pins (P3, P4). The power supply pin VCC is connected to the power output terminal of the power supply module 6 via a voltage conversion module 7. The voltage conversion module 7 is a step-down module used to step down and convert the power supply voltage output by the power supply module 6 to the chip power supply voltage and output it to the power supply pin VCC to provide stable power to the color temperature control chip U2. The switching detection pin P1 is connected to the power output terminal of the power supply module 6 via the fourth resistor R31. It is used to detect the power-on signal of the power supply module and control the output state of the corresponding switching path pin according to each power-on signal. The ground pin GND is connected to the ground terminal. The state switching switch circuit 8 is connected to the switching path pins (P3, P4) and the state selection module respectively. It is used to switch the operation of the corresponding state selection module 2 according to the output state of the switching path pin, thereby adjusting the working state of the LED load module.

[0056] It should be noted that when the switching detection pin P1 of the color temperature control chip U2 detects the power-on signal of the power supply module 6, the color temperature control chip U2 controls the switching path pin P3 to output a conduction level signal to the state switching switch circuit 8, so that the state switching switch circuit 8 controls a state selection module to work, thereby adjusting the LED load module 4 to the corresponding color temperature state. When the switching detection pin P1 of the color temperature control chip U2 detects the power-on signal of the power supply module 6 again (i.e., the lamp switch 5 is turned off and then closed again), the color temperature control chip U2 controls the other switching path pin P4 to output a conduction level signal to the state switching switch circuit 8 in turn, so that the state switching switch circuit 8 controls another state selection module to work, thereby adjusting the LED load module 4 to another color temperature state.

[0057] Preferably, the color temperature control chip U2 uses an MCU chip, but this is not a limitation.

[0058] Furthermore, the state switching circuit 8 includes at least two switching modules (Q1, Q2), each of which is configured to correspond one-to-one with the switching path pins (P3, P4); the control terminal of each switching module (Q1, Q2) is connected to the corresponding switching path pin (P3, P4); the first connection terminal of each switching module (Q1, Q2) is connected to the corresponding state selection module; and the other end of each switching module is connected to the ground terminal.

[0059] It should be noted that when the switching path pin P3 outputs a conductive level signal, the switching module Q1 is turned on, and the state selection module connected to the corresponding switching module Q1 operates, thereby controlling the LED load module 4 to be in the first color temperature state. Correspondingly, when the switching path pin P4 outputs a conductive level signal, the switching module Q2 is turned on, and the state selection module connected to the corresponding switching module Q2 operates, thereby controlling the LED load module 4 to be in the second color temperature state.

[0060] In summary, this utility model is simple to operate and can switch the working states of multiple state switching modules of the lighting fixture according to the user's preferences, so that the lighting fixture has multiple different state switching functions. At the same time, the power supply module's power-on signal can be cyclically switched according to the on / off state of the lighting fixture switch. The set state switching module can detect the power supply module's power-on signal and cyclically switch different state selection modules to work according to each power-on signal, thereby switching the LED load module to different working states to provide different color temperature effects, thereby improving the user's multi-color temperature experience and meeting the user's multi-color temperature experience needs. Moreover, the structure is simple and the cost is low, meeting the user's low-cost requirements.

[0061] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. An LED luminaire, characterized by The device includes an LED housing, on which at least two state selection modules are provided, and within the LED housing are an LED constant current drive module, a state switching module, an LED load module, and a power supply module. The power supply module is connected to the lamp switch, the state switching module and the LED constant current drive module respectively, and is used to output a power-on signal to the state switching module and the LED constant current drive module according to the on / off state of the lamp switch. The LED constant current driving module is connected to the LED load module and is used to output constant current power to the LED load module according to the power-on signal, so as to drive the LED load module to work at constant current. The state selection module is equipped with multiple state adjustment circuits and a switching switch. The switching switch is used for the user to switch any state adjustment circuit to work in advance. The activated state adjustment circuit is connected to the LED load module and is used to adjust the working state of the LED module. The state switching module is connected to the state selection module and is used to cyclically switch the operation of different state selection modules according to each power-on signal in order to adjust the working state of the LED load module.

2. The LED light fixture of claim 1, wherein, The state switching module includes a color temperature switching chip, and the color temperature selection chip includes a power supply pin, a switching detection pin, a ground pin, a power supply pin, and at least two switching path pins. The power supply pin is connected to the power output terminal of the power supply module, and the switching detection pin is connected to the power output terminal of the power supply module to detect the power-on signal of the power supply module. The grounding pin and the power supply pin are respectively connected to the grounding terminal. The switching path pin is connected to the state selection module one by one to switch the operation of different state selection modules in a cycle according to each power-on signal, thereby adjusting the working state of the LED load module.

3. The LED light fixture of claim 1, wherein, The state switching module includes a color temperature control chip and a state switching switch circuit. The color temperature control chip includes a power supply pin, a switching detection pin, a ground pin, and at least two switching path pins. The power supply pin is connected to the power output terminal of the power supply module, and the switching detection pin is connected to the power output terminal of the power supply module. It is used to detect the power-on signal of the power supply module and control the output state of the corresponding switching path pin according to the power-on signal each time. The grounding pin is connected to the grounding terminal. The state switching circuit is connected to the switching path pin and the state selection module respectively, and is used to control the corresponding state selection module to work according to the output state of the switching path pin, thereby adjusting the working state of the LED load module.

4. The LED light fixture of claim 3, wherein, The state switching circuit includes at least two switching modules, and the switching modules are configured to correspond one-to-one with the switching path pins. The control terminal of the switch module is connected to the corresponding switching path pin, the first connection terminal of the switch module is connected to the corresponding state selection module, and the other end of the switch module is connected to the ground terminal.

5. The LED lamp of any one of claims 1 to 4, wherein, The state selection module includes an N-to-1 DIP switch, and the state adjustment circuit includes a single warm color temperature switch path, a single cool color temperature switch path, N-3 mixed color temperature switch paths, and a common connection path. By operating the switching switch on the DIP switch, the single warm color temperature switch path, the single cool color temperature switch path, or any mixed color temperature switch path can be connected to the common connection path for operation. The LED load module includes a first LED load module and a second LED load module. The two warm color temperature pins of the single warm color temperature switch path are respectively connected to a power supply terminal of the second LED load module. The two cold color temperature pins of the single cool color temperature switch path are respectively connected to a power supply terminal of the first LED load module. The common pin terminal of the common connection path is connected to the corresponding path connection terminal of the state switching module. The two mixing pins of the color temperature mixing switch path are respectively connected to a power supply terminal of the corresponding second LED load module and a power supply terminal of the first LED load module through different color temperature adjustment modules. The multiple color temperature mixing switch paths are used to put the LED load module in different working states.

6. The LED lamp of claim 5, wherein, The color temperature adjustment module includes a resistor module, and the resistor module includes at least one resistor; One resistor module has its two ends connected to a mixing pin of the color temperature switching path and a power supply terminal of the second LED load module, respectively. The other resistor module has its two ends connected to a mixing pin of the color temperature switching path and a power supply terminal of the first LED load module, respectively.

7. The LED lamp of claim 1, wherein, The LED constant current driving module includes a constant current driving chip and a sampling module, wherein the sampling module includes at least one sampling resistor; The constant current drive chip includes a power supply pin, an enable pin, a sampling pin, and an output pin. The power supply pin is connected to one power output terminal of the power supply module, the enable pin is connected to the other power output terminal of the power supply module, the sampling pin is connected to the other power terminal and the output pin of the LED load module via the sampling module, and the output pin is connected to the status selection module via the LED load module.

8. The LED lamp of claim 1, wherein, The power supply module includes a rectifier bridge, the first AC input terminal of which is connected to the live wire output terminal of the lighting switch, and the second AC input terminal of which is connected to the neutral wire output terminal of the lighting switch. The first DC output terminal of the rectifier bridge is connected to the LED constant current drive module and the state switching module respectively to supply power to the LED constant current drive module and the state switching module, and the second DC output terminal of the rectifier bridge is connected to the ground terminal.

9. The LED lamp of claim 3, wherein, The power output terminal of the power supply module is connected to the power supply pin via a voltage conversion module. The voltage conversion module is used to step down and convert the power supply voltage output by the power supply module to the chip power supply voltage and output it to the power supply pin to provide stable power to the color temperature control chip.

10. The LED light fixture of claim 5, wherein, Both the first LED load module and the second LED load module include at least one LED lamp.

Images