Explosion-proof lamp with color temperature adjustment function

Abstract

The application discloses an explosion-proof lamp with a color temperature adjusting function, which comprises a shell main body, an LED double-color temperature lamp plate and a control circuit, wherein the LED double-color temperature lamp plate is provided with a first LED lamp group with high color temperature and a second LED lamp group with low color temperature, and the control circuit controls the working of the first LED lamp group and the second LED lamp group; the control circuit comprises an LED driving power supply and a color temperature adjusting control unit, and an input end and an output end of the LED double-color temperature lamp plate are connected to an output end of the LED driving power supply and an input end of the color temperature adjusting control unit respectively; the color temperature adjusting control unit further comprises a color temperature code adjusting unit, a color temperature safety gate control unit, a voltage sampling unit, a control power supply unit, a control center unit, a shunt control unit and an interface unit; the control center unit controls the working of the shunt control unit according to the sampling voltage of the voltage sampling unit, and then controls the circuit on-off of the first LED lamp group and the second LED lamp group, so that the user can adjust the color temperature according to the own use demand, and the overall structure is flexible and practical.

Description

Technical Field

[0001] This utility model relates to a lighting fixture, and more particularly to an explosion-proof lamp with color temperature adjustment function. Background Technology

[0002] With the increasing maturity and stability of LED technology, LED lighting fixtures have been widely used in various places where human activities take place, and explosion-proof lights are a type of LED lighting fixture. Explosion-proof lights are lighting devices specifically designed for flammable and explosive hazardous locations, capable of preventing internal electrical sparks or high temperatures from igniting flammable gases, dust, or vapors in the surrounding environment.

[0003] The existing explosion-proof lights have the following defects in use and production:

[0004] (1) Since ordinary explosion-proof lights can only be made into one color temperature after leaving the factory, for example, if the explosion-proof light is made into a 4000K color temperature power after leaving the factory, if the customer finds that a 6000K color temperature explosion-proof light is needed during the use after installation, then the customer will have to buy it again, which will result in a waste of money and time.

[0005] (2) The explosion-proof lamps produced by the manufacturer can only be made in one color temperature. In order to meet the needs of different customer groups, it is necessary to produce explosion-proof lamps with different color temperatures. Accordingly, the manufacturer needs to stock explosion-proof lamps with different color temperatures, which will result in an additional increase in the stock quantity, inventory backlog, etc., which will ultimately affect the manufacturer's product cycle, capital recovery, etc. Utility Model Content

[0006] Therefore, it is necessary to provide an explosion-proof lamp with color temperature adjustment function to address the shortcomings of existing technologies.

[0007] An explosion-proof lamp with color temperature adjustment function includes a housing body, an LED dual-color temperature lamp board, and a control circuit. The LED dual-color temperature lamp board is provided with a first LED lamp group with a high color temperature and a second LED lamp group with a low color temperature. The control circuit controls the operation of the first LED lamp group and the second LED lamp group. The control circuit includes an LED driver power supply and a color temperature adjustment control unit. The input and output terminals of the LED dual-color temperature lamp board are respectively connected to the output terminal of the LED driver power supply and the input terminal of the color temperature adjustment control unit.

[0008] The color temperature control unit further includes a color temperature DIP switch adjustment unit, a color temperature safety barrier control unit, a voltage sampling unit, a control power supply unit, a control center unit, a shunt control unit, and an interface unit. The LED driver power supply is connected to the input terminal of the control power supply unit, the input terminal of the first LED group, and the input terminal of the low color temperature second LED group. The output terminals of the first LED group and the second LED group are connected to the shunt control unit. The current after being regulated by the control power supply unit flows through the color temperature DIP switch adjustment unit, the color temperature safety barrier control unit, and the voltage sampling unit. The control center unit controls the operation of the shunt control unit according to the sampling voltage of the voltage sampling unit.

[0009] In one embodiment, a sealing element is also included. The LED dual-color temperature lamp board and control circuit are disposed inside the housing body. The housing body is provided with a positioning hole. The sealing element is installed on the housing body and seals the positioning hole.

[0010] In one embodiment, the color temperature adjustment unit includes a first DIP switch, which is disposed inside the housing body and is arranged opposite to the sealing element in the vertical direction.

[0011] In one embodiment, the seal is a plug or a cap.

[0012] In one embodiment, the color temperature DIP switch adjustment unit further includes several voltage regulating resistors, and the first DIP switch can switch states to connect one or more voltage regulating resistors to the circuit for voltage division.

[0013] In one embodiment, the control circuit further includes a silicone potting layer on the color temperature control unit. The silicone potting layer seals and wraps around the outside of the color temperature safety barrier control unit, voltage sampling unit, control power supply unit, control center unit, and shunt control unit, while the color temperature dial switch adjustment unit and interface unit are exposed outside the silicone potting layer.

[0014] In one embodiment, the control power supply unit is equipped with a voltage regulator U2 and a fuse F3. The main circuit of the color temperature safety barrier control unit is equipped with a fuse F2 and a current-limiting resistor R9. The two ends of the main circuit of the color temperature safety barrier control unit are respectively connected to the voltage sampling unit and the color temperature DIP switch adjustment unit. The color temperature safety barrier control unit is also equipped with a Zener diode ZD3. One end of the Zener diode ZD3 is connected in parallel in the circuit between the main circuit of the color temperature safety barrier control unit and the color temperature DIP switch adjustment unit, and the other end of the Zener diode ZD3 is grounded.

[0015] In one embodiment, the control center unit is equipped with a control chip U1, which has an A / D port, a PWM1 port, and a PWM2 port. The control chip U1 detects the sampled voltage of the voltage sampling unit 223 through the A / D port. The current shunt control unit further includes a first current shunt circuit and a second current shunt circuit. The first current shunt circuit is equipped with a PMOS transistor Q1, the drain of which is connected to the output terminal of the first LED group 11, the source of which is grounded, and the gate of which is connected to the PWM1 port of the control chip U1 through a resistor R17. The second current shunt circuit is equipped with a PMOS transistor M1, the drain of which is connected to the output terminal of the second LED group, the source of which is grounded, and the gate of which is connected to the PWM2 port of the control chip U1 through a resistor R18.

[0016] In one embodiment, the control circuit further includes a power control unit that adjusts the output power of the LED driver power supply. The power control unit includes a power DIP switch adjustment unit and a power safety barrier circuit unit. The main circuit of the power safety barrier circuit unit is equipped with a fuse F1 and a current-limiting resistor R3. The color temperature safety barrier control unit is also equipped with a Zener diode ZD1. One end of the Zener diode ZD1 is connected in parallel in the circuit between the main circuit of the power safety barrier circuit unit and the power DIP switch adjustment unit, and the other end of the Zener diode ZD1 is grounded. The control circuit further includes a silicone potting layer on the power control unit. The silicone potting layer seals and wraps the outside of the power safety barrier circuit unit, while the power DIP switch adjustment unit and the interface unit are exposed outside the silicone potting layer.

[0017] In one embodiment, the power DIP switch adjustment unit includes a second DIP switch and several voltage regulating resistors. The second DIP switch can switch states to connect one or more voltage regulating resistors to the circuit for voltage division. The second DIP switch is located inside the housing body, and the second DIP switch and the sealing element are arranged opposite each other in the vertical direction.

[0018] The beneficial effects of this explosion-proof lamp with color temperature adjustment function are as follows: By setting a color temperature adjustment control unit and setting a first LED group with a high color temperature and a second LED group with a low color temperature on the LED dual-color temperature lamp board, the color temperature adjustment control unit further includes a color temperature dial adjustment unit, a color temperature safety barrier control unit, a voltage sampling unit, a control power supply unit, a control center unit, a shunt control unit, and an interface unit. The control center unit controls the shunt control unit to work according to the sampling voltage of the voltage sampling unit, thereby controlling the circuit switching of the first LED group and the second LED group, so that the entire LED dual-color temperature lamp board is in one of the high color temperature state, intermediate color temperature state, or low color temperature state, so that the user can adjust the color temperature according to their own usage needs. The overall structure is flexible and highly practical. Attached Figure Description

[0019] Figure 1 This is a schematic diagram showing the connection of each module of this utility model;

[0020] Figure 2 This is an application block diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the present invention when the seal is opened, wherein the seal is a plug;

[0022] Figure 4 This is a schematic diagram of the present invention when the seal is opened, wherein the seal is a cover;

[0023] Figure 5 This is a schematic diagram showing the connection of each module in the power control unit and color temperature control unit of this utility model.

[0024] Figure 6 Circuit diagram of the color temperature control unit in this utility model;

[0025] Figure 7 This is the circuit diagram of the power control unit in this utility model. Detailed Implementation

[0026] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0031] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0032] Please see Figures 1 to 7 This utility model provides an explosion-proof lamp with color temperature adjustment function, including a housing body 40, an LED dual color temperature lamp board 10, a control circuit 20 and a sealing component 30. The LED dual color temperature lamp board 10 and the control circuit 20 are disposed inside the housing body 40. The LED dual color temperature lamp board 10 is provided with a first LED lamp group 11 with a high color temperature and a second LED lamp group 12 with a low color temperature. The control circuit 20 controls the first LED lamp group 11 and the second LED lamp group 12 to work.

[0033] The shell body 40 is provided with a positioning hole 41. The sealing element 30 is installed on the shell body 40 and seals the positioning hole 41. In this embodiment, the positioning hole 41 has an internal thread on its wall, and the outer peripheral surface of the sealing element 30 has an external thread. The sealing element 30 and the positioning hole 41 are installed by screw engagement. Alternatively, the sealing element 30 can be a plug (e.g., Figure 3 (as shown) or lid (such as) Figure 4 (as shown in the figure)

[0034] The control circuit 20 includes an LED driver power supply 21, a power adjustment control unit 23, and a color temperature adjustment control unit 22. Both the power adjustment control unit 23 and the color temperature adjustment control unit 22 are electrically connected to the LED driver power supply 21. The power adjustment control unit 23 adjusts the output power of the LED driver power supply 21. The LED driver power supply 21 supplies power to the color temperature adjustment control unit 22 and the LED dual-color temperature lamp board 10. The input and output terminals of the LED dual-color temperature lamp board 10 are respectively connected to the output terminal of the LED driver power supply 21 and the input terminal of the color temperature adjustment control unit 22. The color temperature adjustment control unit 22 controls the on / off state of the circuits of the first LED lamp group 11 and the second LED lamp group 12 to achieve color temperature adjustment.

[0035] The color temperature control unit 22 further includes a color temperature dial adjustment unit 221, a color temperature safety barrier control unit 222, a voltage sampling unit 223, a control power supply unit 226, a control center unit 224, a current shunt control unit 225, and an interface unit 227. The LED driver power supply 21 is connected to the input terminal of the control power supply unit 226, the input terminal of the first LED group 11, and the input terminal of the low color temperature second LED group 12. The output terminals of the first LED group 11 and the second LED group 12 are connected to the current shunt control unit 225. The current after being regulated by the control power supply unit 226 flows through the color temperature dial adjustment unit 221, the color temperature safety barrier control unit 222, and the voltage sampling unit 223. The control center unit 224 controls the current shunt control unit 225 to work according to the sampling voltage of the voltage sampling unit 223, thereby controlling the circuit switching of the first LED group 11 and the second LED group 12, so that the entire LED dual color temperature light board 10 is in one of the high color temperature state, the intermediate color temperature state, or the low color temperature state.

[0036] Specifically, the interface unit 227 includes a first port 2271, a second port 2272, and a third port 2273. The first port 2271 is connected to the output terminal of the LED driver power supply 21, the second port 2272 is connected to the output terminal of the first LED lamp group 11, and the third port 2273 is connected to the output terminal of the second LED lamp group 12.

[0037] The control power supply unit 226 is connected to the first port 2271 of the interface unit 227. The control power supply unit 226 is equipped with a voltage regulator U2 and a fuse F3. The voltage regulator U2 regulates the current flowing out of the control power supply unit 226. When the current flowing through the control power supply unit 226 is too large, the temperature of the fuse rises and the fuse F3 is disconnected.

[0038] The control center unit 224 includes a control chip U1, which has an A / D port, a PWM1 port, a PWM2 port, and a VCC port. The VCC port of the control chip U1 is connected to the output terminal of the control power supply unit 226. The LED driver unit supplies power to the control chip U1 through the control power supply unit 226.

[0039] The input terminal of the voltage sampling unit 223 is connected to the output terminal of the control power supply unit 226. The output terminal of the voltage sampling unit 223 is grounded. A sampling point Vin is provided on the voltage sampling unit 223. Sampling resistors R14 and R15 are provided between the sampling point Vin and the output terminal of the voltage sampling unit 223.

[0040] The main circuit of the color temperature safety barrier control unit 222 is equipped with a fuse F2 and a current-limiting resistor R9. The two ends of the main circuit of the color temperature safety barrier control unit 20 are respectively connected to the sampling point Vin of the voltage sampling unit 223 and the color temperature DIP switch adjustment unit 221. The color temperature safety barrier control unit 20 is also equipped with a Zener diode ZD3. One end of the Zener diode ZD3 is connected in parallel in the circuit between the main circuit of the color temperature safety barrier control unit 20 and the color temperature DIP switch adjustment unit 221, and the other end of the Zener diode ZD3 is grounded.

[0041] The color temperature DIP switch unit 221 includes a first DIP switch 229 and several voltage-regulating resistors. The first DIP switch 229 can switch states to connect one or more voltage-regulating resistors to the circuit for voltage division. In this embodiment, the voltage-regulating resistors are divided into two paths. One path consists of resistors R6 and R5 connected in series, and the other path consists of resistors R7 and R8 connected in series. The first DIP switch 229 can be adjusted to three states. When the first DIP switch 229 is adjusted to the first state, the voltage-regulating resistor composed of resistors R6 and R5 connected in series is connected to the circuit, and the other voltage-regulating resistor composed of resistors R7 and R8 is inactive. When the first DIP switch 229 is adjusted to the second state, the voltage-regulating resistor composed of resistors R6 and R5 is inactive, and the other voltage-regulating resistor composed of resistors R7 and R8 is connected to the circuit. When the first DIP switch 229 is adjusted to the third state, both voltage-regulating resistors are connected to the circuit.

[0042] The current shunt control unit 225 further includes a first current shunt circuit and a second current shunt circuit. The first current shunt circuit is equipped with a PMOS transistor Q1, the drain of which is connected to the output terminal of the first LED lamp group 11, the source of which is grounded, and the gate of which is connected to the PWM1 port of the control chip U1 through a resistor R17. The second current shunt circuit is equipped with a PMOS transistor M1, the drain of which is connected to the output terminal of the second LED lamp group 12, the source of which is grounded, and the gate of which is connected to the PWM2 port of the control chip U1 through a resistor R18.

[0043] During operation, by adjusting the state of the first DIP switch 229, one or more voltage regulating resistors are connected to the circuit for voltage division, thereby adjusting the voltage at the sampling point Vin on the voltage sampling unit 223. The control chip U1 detects the magnitude of the voltage at the sampling point Vin through the A / D port and controls the voltages of the PWM1 and PWM2 ports according to the magnitude of the voltage at the sampling point Vin, thereby controlling the conduction state of PMOS transistors Q1 and M1, so that one or both of the first LED group 11 and the second LED group 12 are in working state. Specifically:

[0044] (1) When Vin > Va, PWM1 outputs a high level continuously. At this time, MOSFET Q1 is turned on, and the first LED group 11 with high color temperature is lit. PWM2 outputs a low level continuously. At this time, MOSFET M1 is turned off, and the second LED group 12 with low color temperature is turned off. The entire LED dual color temperature light board 10 presents a high color temperature state.

[0045] (2) When (Vb+Vth)<Vin<(Va-Vth), both PWM1 and PWM2 ports output a high level continuously. At this time, MOSFET Q1 and MOSFET M1 are turned on, and the first LED group 11 with high color temperature and the second LED group 12 with low color temperature are lit. The entire LED dual color temperature light board 10 presents an intermediate color temperature state.

[0046] (3) When Vin < Vb, PWM1 outputs a low level and PWM2 outputs a high level. At this time, MOSFET Q1 is cut off and the first LED group 11 with high color temperature is turned off; MOSFET M1 is turned on and the second LED group 12 with low color temperature is lit. The entire LED dual color temperature LED dual color temperature light board 10 presents a low color temperature state.

[0047] Wherein, Vin is the voltage magnitude of the sampling point Vin. The voltage values ​​of Va, Vb and Vth are set according to actual needs. Among them, Va > Vb and (Va-Vb) > Vth*2. Vth is preferably set to be greater than 0.3V. Vth is a hysteresis voltage value set according to the error of the electronic components themselves to avoid circuit malfunctions and thus ensure accurate and interference-free state switching.

[0048] In addition, the control circuit 20 further includes a silicone potting layer 228 on the color temperature control unit 22. This silicone potting layer 228 seals and wraps around the color temperature safety barrier control unit 222, voltage sampling unit 223, control power supply unit 226, control center unit 224, and shunt control unit 225. The color temperature DIP switch adjustment unit 221 and interface unit 227 are exposed outside the silicone potting layer 228. This effectively prevents the color temperature safety barrier control unit 222, voltage sampling unit 223, control power supply unit 226, control center unit 224, and shunt control unit 225 from generating sparks during operation, thus avoiding potential installation hazards. For the color temperature DIP switch adjustment unit 221, voltage and current are limited by a Zener diode ZD3, current-limiting resistor R9, and fuse F2, ensuring that the color temperature DIP switch adjustment unit 221 meets the requirement of not generating sparks and that the DIP switch adjustment circuit meets the requirements of a safety circuit. In this embodiment, to facilitate the adjustment of the first DIP switch 229, the first DIP switch 229 is disposed inside the housing body 40, and the first DIP switch 229 and the sealing member 30 are arranged opposite each other in the vertical direction.

[0049] In this embodiment, a dimmer 50 is also included. An external power supply is connected to the power control unit 23 via the dimmer 50. By setting the power control unit 23 on the circuit, and the power control unit 23 is equipped with a second DIP switch 234, the client can toggle the second DIP switch 234 to the corresponding position according to the LED lighting power required by the application scenario. When the switch is turned on, it will form a current loop with other devices, which can control the voltage values ​​of Driver DIM+ and Driver DIM- at the dimming port of the LED driver power supply 21 to change, thereby changing the output current of the LED driver power supply 21 and thus changing the power of the LED lighting.

[0050] Specifically, the power control unit 23 includes a power DIP switch adjustment unit 231 and a power safety barrier circuit unit 232. The main circuit of the power safety barrier circuit unit 232 is equipped with a fuse F1 and a current limiting resistor R3. The color temperature safety barrier control unit 222 is also equipped with a Zener diode ZD1. One end of the Zener diode ZD1 is connected in parallel in the circuit between the main circuit of the power safety barrier circuit unit 232 and the power DIP switch adjustment unit 231, and the other end of the Zener diode ZD1 is grounded.

[0051] The power DIP switch adjustment unit 231 includes a second DIP switch 234 and several voltage regulating resistors. The second DIP switch 234 can switch states to connect one or more voltage regulating resistors to the circuit for voltage division.

[0052] In addition, the control circuit 20 further includes a silicone potting layer 233 on the power control unit 23. The silicone potting layer 233 seals and wraps around the outside of the power safety barrier circuit unit 232, while the power DIP switch adjustment unit 231 and the interface unit 227 are exposed outside the silicone potting layer 233. This effectively prevents the power safety barrier circuit unit 232 from generating sparks during operation, thus avoiding potential installation hazards. For the power DIP switch adjustment unit 231, voltage and current limiting are achieved using a Zener diode ZD1, a current-limiting resistor R3, and a fuse F1, ensuring that the color temperature DIP switch adjustment unit 221 meets the requirement of not generating sparks. In this embodiment, to facilitate adjustment of the second DIP switch 234, the second DIP switch 234 is located inside the housing body 40, and the second DIP switch 234 and the sealing member 30 are vertically opposite each other.

[0053] The beneficial effects of this explosion-proof lamp with color temperature adjustment function are as follows: By setting a color temperature adjustment control unit 22, and setting a first LED group 11 with a high color temperature and a second LED group 12 with a low color temperature on the LED dual-color temperature lamp panel 10, the color temperature adjustment control unit 22 further includes a color temperature dial adjustment unit 221, a color temperature safety barrier control unit 222, a voltage sampling unit 223, a control power supply unit 226, a control center unit 224, a current shunt control unit 225, and an interface unit 227. The control center unit 224 controls the current shunt control unit 225 to work according to the sampling voltage of the voltage sampling unit 223, thereby controlling the circuit switching of the first LED group 11 and the second LED group 12, so that the entire LED dual-color temperature lamp panel 10 is in one of the high color temperature state, intermediate color temperature state, or low color temperature state, so that the user can adjust the color temperature according to their own usage needs. The overall structure is flexible and highly practical.

[0054] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An explosion-proof lamp with color temperature adjustment function, characterized in that, The device includes a housing, an LED dual-color temperature lamp board, and a control circuit. The LED dual-color temperature lamp board is equipped with a first LED lamp group with a high color temperature and a second LED lamp group with a low color temperature. The control circuit controls the operation of the first LED lamp group and the second LED lamp group. The control circuit includes an LED driver power supply and a color temperature adjustment control unit. The input and output terminals of the LED dual-color temperature lamp board are respectively connected to the output terminal of the LED driver power supply and the input terminal of the color temperature adjustment control unit. The color temperature control unit further includes a color temperature DIP switch adjustment unit, a color temperature safety barrier control unit, a voltage sampling unit, a control power supply unit, a control center unit, a shunt control unit, and an interface unit. The LED driver power supply is connected to the input terminal of the control power supply unit, the input terminal of the first LED group, and the input terminal of the low color temperature second LED group. The output terminals of the first LED group and the second LED group are connected to the shunt control unit. The current after being regulated by the control power supply unit flows through the color temperature DIP switch adjustment unit, the color temperature safety barrier control unit, and the voltage sampling unit. The control center unit controls the operation of the shunt control unit according to the sampling voltage of the voltage sampling unit.

2. The explosion-proof lamp with color temperature adjustment function according to claim 1, characterized in that, It also includes a sealing element. The LED dual-color temperature lamp board and control circuit are located inside the shell body. The shell body is provided with a positioning hole. The sealing element is installed on the shell body and seals the positioning hole.

3. The explosion-proof lamp with color temperature adjustment function according to claim 2, characterized in that, The color temperature adjustment unit includes a first DIP switch, which is located inside the housing body and is positioned opposite to the sealing element in the vertical direction.

4. The explosion-proof lamp with color temperature adjustment function according to claim 3, characterized in that, The sealing element is a plug or a cap.

5. The explosion-proof lamp with color temperature adjustment function according to claim 3, characterized in that, The color temperature DIP switch adjustment unit also includes several voltage regulating resistors. The first DIP switch can switch states to connect one or more voltage regulating resistors to the circuit for voltage division.

6. The explosion-proof lamp with color temperature adjustment function according to claim 1, characterized in that, The control circuit further includes a silicone potting layer on the color temperature control unit. The silicone potting layer seals and wraps around the outside of the color temperature safety barrier control unit, voltage sampling unit, control power supply unit, control center unit, and shunt control unit, while the color temperature dial switch adjustment unit and interface unit are exposed outside the silicone potting layer.

7. The explosion-proof lamp with color temperature adjustment function according to claim 6, characterized in that, The control power supply unit is equipped with a voltage regulator U2 and a fuse F3. The main circuit of the color temperature safety barrier control unit is equipped with a fuse F2 and a current limiting resistor R9. The two ends of the main circuit of the color temperature safety barrier control unit are respectively connected to the voltage sampling unit and the color temperature DIP switch adjustment unit. The color temperature safety barrier control unit is also equipped with a Zener diode ZD3. One end of the Zener diode ZD3 is connected in parallel in the circuit between the main circuit of the color temperature safety barrier control unit and the color temperature DIP switch adjustment unit, and the other end of the Zener diode ZD3 is grounded.

8. The explosion-proof lamp with color temperature adjustment function according to claim 1, characterized in that, The control center unit is equipped with a control chip U1, which has an A / D port, a PWM1 port, and a PWM2 port. The control chip U1 detects the sampled voltage of the voltage sampling unit 223 through the A / D port. The current shunt control unit further includes a first current shunt circuit and a second current shunt circuit. The first current shunt circuit is equipped with a PMOS transistor Q1, the drain of which is connected to the output terminal of the first LED group 11, the source of which is grounded, and the gate of which is connected to the PWM1 port of the control chip U1 through a resistor R17. The second current shunt circuit is equipped with a PMOS transistor M1, the drain of which is connected to the output terminal of the second LED group, the source of which is grounded, and the gate of which is connected to the PWM2 port of the control chip U1 through a resistor R18.

9. The explosion-proof lamp with color temperature adjustment function according to claim 2, characterized in that, The control circuit also includes a power control unit, which adjusts the output power of the LED driver power supply. The power control unit includes a power DIP switch adjustment unit and a power safety barrier circuit unit. The main circuit of the power safety barrier circuit unit is equipped with a fuse F1 and a current-limiting resistor R3. The color temperature safety barrier control unit is also equipped with a Zener diode ZD1. One end of the Zener diode ZD1 is connected in parallel in the circuit between the main circuit of the power safety barrier circuit unit and the power DIP switch adjustment unit, and the other end of the Zener diode ZD1 is grounded. The control circuit further includes a silicone potting layer on the power control unit. The silicone potting layer seals and wraps the outside of the power safety barrier circuit unit, while the power DIP switch adjustment unit and the interface unit are exposed outside the silicone potting layer.

10. The explosion-proof lamp with color temperature adjustment function according to claim 9, characterized in that, The power DIP switch adjustment unit includes a second DIP switch and several voltage regulating resistors. The second DIP switch can switch states to connect one or more voltage regulating resistors to the circuit for voltage division. The second DIP switch is located inside the housing body, and the second DIP switch and the sealing element are arranged opposite each other in the vertical direction.

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