Mirror front lamp

Abstract

The utility model discloses a mirror front lamp, and relates to the technical field of lamp control. The mirror front lamp comprises a main control circuit and a mirror front lamp, the light source circuit is used for opening or closing the output of a light source according to the light source control signal output by the main control circuit; the human body infrared detection circuit is used for detecting a human body in a preset range and outputting a human body infrared detection signal; the switch switching assembly is used for outputting a switch switching signal when being triggered; the mode switching assembly is used for outputting a mode switching signal when being triggered; wherein the main control circuit is used for outputting a corresponding light source control signal to the light source circuit according to the switch switching signal, so that the light source circuit opens or closes the output of a light source; and the main control circuit is also used for outputting a corresponding detection control signal to the human body infrared detection circuit according to the mode switching signal, so that the human body infrared detection circuit is started or closed for detection. The utility model aims to improve the use flexibility of the mirror front lamp.

Description

Technical Field

[0001] The utility model relates to the technical field of lamp control, in particular to a mirror lamp. Background Art

[0002] Most mirror lights currently on the market use touch-activated switches, requiring physical movement to turn the light on and off. However, in many practical scenarios, direct physical activation is inconvenient. For example, if a user's hand is holding an object or has smears on it, they must put the object down or wash their hands before activating the switch. Furthermore, many mirror lights require a mirror surface for activation, which can cause stains. Therefore, a mirror light that can be activated directly without physical movement is desirable. Utility Model Content

[0003] The main purpose of the utility model is to provide a mirror lamp, aiming to improve the flexibility of using the mirror lamp.

[0004] To achieve the above-mentioned purpose, the present invention provides a mirror front light, which comprises:

[0005] Main control circuit;

[0006] a light source circuit, wherein a controlled end of the light source circuit is electrically connected to the main control circuit, and the light source circuit is configured to turn on or off the output of the light source according to a light source control signal output by the main control circuit;

[0007] A human infrared detection circuit, the output end of which is electrically connected to the main control circuit, for detecting a human body within a preset range and outputting a human infrared detection signal;

[0008] a switch switching component, wherein an output end of the switch switching component is electrically connected to the main control circuit and is configured to output a switch switching signal when triggered;

[0009] a mode switching component, wherein an output end of the mode switching component is electrically connected to the main control circuit and is configured to output a mode switching signal when triggered;

[0010] In which, the main control circuit is used to output the corresponding light source control signal to the light source circuit according to the switch switching signal, so that the light source circuit turns on or off the output of the light source; the main control circuit is also used to output the corresponding detection control signal to the human infrared detection circuit according to the mode switching signal, so that the human infrared detection circuit turns on or off detection.

[0011] In one embodiment, the light source circuit includes:

[0012] An LED circuit, wherein a first end of the LED circuit is electrically connected to a power input end and is used to output a light source;

[0013] A switching circuit, wherein the first end of the switching circuit is electrically connected to the second end of the LED circuit, the controlled end of the switching circuit is electrically connected to the main control circuit, the second end of the switching circuit is grounded, and the switching circuit is used to turn on or off the path between the LED circuit and the ground end according to the light source control signal output by the main control circuit.

[0014] In one embodiment, the LED circuit includes a first light emitting diode; the switch circuit includes a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, and a switch tube;

[0015] Among them, the anode of the first light-emitting diode is electrically connected to the power input end, the cathode of the first light-emitting diode is electrically connected to the first end of the first resistor, the first end of the second resistor, and the first end of the third resistor; the second end of the first resistor, the second end of the second resistor, and the second end of the third resistor are electrically connected to the first end of the switching tube; the controlled end of the switching tube is electrically connected to the first end of the fourth resistor and the first end of the fifth resistor, the second end of the switching tube is electrically connected to the second end of the fifth resistor and the ground end; the second end of the fourth resistor is electrically connected to the main control circuit.

[0016] In one embodiment, the front mirror lamp also includes a linear voltage regulator circuit, the input end of the linear voltage regulator circuit is electrically connected to the power input end, the output end of the linear voltage regulator circuit is electrically connected to the voltage regulator output end, and the linear voltage regulator circuit is used to convert the input first voltage into a second voltage and output it stably.

[0017] In one embodiment, the linear voltage stabilization circuit includes a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, and a voltage stabilization chip;

[0018] Among them, the first end of the first capacitor is electrically connected to the first end of the second capacitor, the power input end, and the VIN pin of the voltage stabilizing chip; the first end of the third capacitor is electrically connected to the first end of the fourth capacitor, the voltage stabilizing output end, and the OUT pin of the voltage stabilizing chip; the second end of the first capacitor is electrically connected to the second end of the second capacitor, the GND pin of the voltage stabilizing chip, the second end of the third capacitor, the second end of the fourth capacitor, and the second end of the ground terminal.

[0019] In one embodiment, the human infrared detection circuit includes a human infrared sensor and a fifth capacitor;

[0020] Among them, the first end of the human body infrared sensor is electrically connected to the voltage stabilization output end and the first end of the fifth capacitor, the controlled end of the human body infrared sensor is electrically connected to the main control circuit, and the second end of the human body infrared sensor is electrically connected to the second end of the fifth capacitor and the ground end.

[0021] In one embodiment, the front mirror lamp further includes a prompt circuit, an input end of the prompt circuit is electrically connected to the main control circuit, and the prompt circuit is used to output a prompt signal according to a prompt control signal output by the main control circuit.

[0022] In one embodiment, the prompt circuit includes: a second light emitting diode, a sixth resistor;

[0023] The anode of the light-emitting diode is electrically connected to the first end of the sixth resistor, the cathode of the light-emitting diode is electrically connected to the ground end; and the second end of the sixth resistor is electrically connected to the main control circuit.

[0024] In one embodiment, the main control circuit includes a main control chip and a filter circuit, the first end of the filter circuit is electrically connected to the voltage stabilization output end, the second end of the filter circuit is electrically connected to the main control chip, and the filter circuit is used to filter the input voltage and output it.

[0025] In one embodiment, the filtering circuit includes a sixth capacitor, a first end of the sixth capacitor is electrically connected to the voltage stabilization output end and the VDD pin of the main control chip, and a second end of the sixth capacitor is electrically connected to the GND pin of the main control chip and the ground end.

[0026] The present invention utilizes a mode switching component to determine the current operating mode of the mirror light. The mirror light includes an automatic sensing mode for receiving infrared human body detection signals, and a manual triggering mode for receiving switch switching signals. When the user confirms that the mirror light is currently operating in automatic sensing mode, the human infrared detection circuit is controlled to operate, and by acquiring the human infrared detection signal output by the human infrared detection circuit, the light source circuit is controlled to output or turn off the light source. By adopting two operating modes, automatic sensing mode and manual triggering mode, which can be selected by the user, the mirror light meets the diverse needs of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0028] Figure 1 This is a schematic diagram of the module of the mirror headlight of the present invention;

[0029] Figure 2 This is a circuit diagram of an embodiment of the mirror lamp of the present invention;

[0030] Figure 3 This is a circuit diagram of another embodiment of the mirror lamp of the present invention;

[0031] Figure 4 This is a circuit diagram of another embodiment of the mirror lamp of the present invention.

[0032] Description of Figure Numbers:

[0033] 10. Main control circuit; 20. Light source circuit; 21. LED circuit; 22. Switch circuit; 30. Human infrared detection circuit; 40. Switch switching component; 50. Mode switching component.

[0034] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, the descriptions of "first," "second," etc. in this utility model are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0038] Most mirror lights currently on the market use touch-activated switches, requiring physical movement to turn the light on and off. However, in many practical scenarios, direct physical activation is inconvenient. For example, if a user's hand is holding an object or has smears on it, they must put the object down or wash their hands before activating the switch. Furthermore, many mirror lights require a mirror surface for activation, which can cause stains. Therefore, a mirror light that can be activated directly without physical movement is desirable.

[0039] Therefore, reference Figures 1 to 3 The present invention provides a mirror front lamp, which comprises:

[0040] Main control circuit 10;

[0041] A light source circuit 20, wherein a controlled end of the light source circuit 20 is electrically connected to the main control circuit 10, and the light source circuit 20 is configured to turn on or off the output of the light source according to a light source control signal output by the main control circuit 10;

[0042] A human infrared detection circuit 30, the output end of which is electrically connected to the main control circuit 10, for detecting a human body within a preset range and outputting a human infrared detection signal;

[0043] a switch switching component 40, wherein an output end of the switch switching component 40 is electrically connected to the main control circuit 10 and is configured to output a switch switching signal when triggered;

[0044] a mode switching component 50, wherein an output end of the mode switching component 50 is electrically connected to the main control circuit 10 and is configured to output a mode switching signal when triggered;

[0045] Among them, the main control circuit 10 is used to output the corresponding light source control signal to the light source circuit 20 according to the switch switching signal, so that the light source circuit 20 turns on or off the output of the light source; the main control circuit 10 is also used to output the corresponding detection control signal to the human infrared detection circuit 30 according to the mode switching signal, so that the human infrared detection circuit 30 turns on or off detection.

[0046] In this embodiment, the main control circuit 10 can be implemented using a main controller, such as a DSP (Digital Signal Process), an FPGA (Field Programmable Gate Array), an MCU (Microcontroller Unit), or a SOC (System on Chip). The main control circuit 10 obtains and processes different input signals to output corresponding control signals, thereby controlling corresponding circuits to perform corresponding actions.

[0047] In this embodiment, the light source circuit 20 can be implemented using an LED circuit 21, a fluorescent lamp circuit, or the like. The light source circuit 20 turns on or off the light source output by receiving a light source control signal output by the main control circuit 10. Specifically, the light source circuit 20 includes: an LED circuit 21, a first end of the LED circuit 21 electrically connected to a power input terminal for outputting light; a switch circuit 22, a first end of the switch circuit 22 electrically connected to a second end of the LED circuit 21, a controlled end of the switch circuit 22 electrically connected to the main control circuit 10, a second end of the switch circuit 22 grounded, and the switch circuit 22 configured to open or close the path between the LED circuit 21 and the ground terminal in response to the light source control signal output by the main control circuit 10. The LED circuit 21 includes a first light-emitting diode D1; the switch circuit 22 includes a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, and a switch. The anode of the first light-emitting diode D1 is electrically connected to the power input terminal, and the cathode of the first light-emitting diode D1 is electrically connected to the first end of the first resistor R1, the first end of the second resistor R2, and the first end of the third resistor R3. The second end of the first resistor R1, the second end of the second resistor R2, and the second end of the third resistor R3 are electrically connected to the first end of the switch. The controlled end of the switch is electrically connected to the first end of the fourth resistor R4 and the first end of the fifth resistor R5, and the second end of the switch is electrically connected to the second end of the fifth resistor R5 and to ground. The second end of the fourth resistor R4 is electrically connected to the main control circuit 10. The switch can be implemented using a MOS transistor, an IGBT transistor, a thyristor, a triode, a power transistor, or the like. Specifically, the switch is a PMOS transistor, and the main control circuit 10 outputs a low-level signal to turn on the PMOS transistor. When the PMOS transistor is turned on, the first light-emitting diode D1 is also powered on, thereby emitting light. When the PMOS transistor is turned off, the first light-emitting diode D1 is also powered off, thereby turning off the light output. The first resistor R1, the second resistor R2, the third resistor R3, and the fifth resistor R5 are all current-limiting resistors, which provide protection. The fourth resistor R4 is a pull-down resistor that pulls the gate of the PMOS transistor down to ground. When no signal is applied to the gate of the PMOS transistor, the PMOS transistor is kept in the off state, preventing the LED circuit 21 from accidentally emitting light.

[0048] In this embodiment, the human infrared detection circuit 30 can be implemented using a human infrared sensor and peripheral circuits. The human infrared detection circuit 30 includes a human infrared sensor and a fifth capacitor C5. The first end of the human infrared sensor is electrically connected to the voltage regulator output terminal and the first end of the fifth capacitor C5. The controlled end of the human infrared sensor is electrically connected to the main control circuit 10. The second end of the human infrared sensor is electrically connected to the second end of the fifth capacitor C5 and to ground. It is understood that the supply voltage of the human infrared sensor is 3.3V. Therefore, the supply voltage of the human infrared sensor is different from the supply voltage of the LED circuit 21. This requires that the supply voltage of the human infrared sensor be reduced from a 5V supply voltage to a 3.3V supply voltage through voltage reduction and stabilization. The human infrared sensor comprises one or two pairs of infrared receivers made of pyroelectric material. These materials generate a charge imbalance after absorbing infrared energy. As the received infrared energy changes, the charge imbalance also changes accordingly. Most human infrared sensors use a binary structure, with each unit corresponding to an independent field of view. The two units are usually encapsulated in a transparent plastic shell, which is covered with a layer of Fresnel lens for focusing infrared energy. The Fresnel lens divides the field of view of the sensor into a series of concentric ring areas. When a person or object passes through these areas, it will cause a difference in the infrared energy received by the two units. The infrared energy received by the two units will be sent to a comparator, which will continuously monitor the difference between the two. When this difference exceeds a preset threshold, it means that a person or object is moving. At this time, the comparator outputs a trigger signal, that is, a human infrared detection signal. This signal is output to the main control circuit 10, so that the main control circuit 10 outputs a corresponding control signal through this signal, thereby achieving the technical effect of automatic sensing.

[0049] In this embodiment, the switch component 40 and the mode switching component 50 can be implemented using a trigger-type button circuit. A user triggers a button in the switch component 40 or the mode switching component 50 to output a switch switching signal or a mode switching signal to the main control circuit 10. The main control circuit 10 receives the switch switching signal or the mode switching signal output by the switch component 40 or the mode switching component 50 to enable or disable the output of the light source circuit or the detection of the human infrared detection circuit 30.

[0050] The current operating mode of the mirror light is determined by using a mode switching component 50. The mirror light includes an automatic sensing mode for receiving infrared detection signals from the human body, and a manual triggering mode for receiving a switch switching signal. When the user confirms that the mirror light is currently operating in automatic sensing mode, the human infrared detection circuit 30 is controlled to operate. By acquiring the human infrared detection signal output by the human infrared detection circuit 30, the light source circuit 20 is controlled to output or turn off the light source. By adopting two operating modes, automatic sensing mode and manual triggering mode, which can be selected by the user, the mirror light meets the different needs of users.

[0051] refer to Figure 4 In one embodiment of the present invention, the front mirror lamp also includes a linear voltage regulator circuit, the input end of the linear voltage regulator circuit is electrically connected to the power input end, the output end of the linear voltage regulator circuit is electrically connected to the voltage regulator output end, and the linear voltage regulator circuit is used to convert the input first voltage into a second voltage and output it stably.

[0052] In this embodiment, different circuits in the front mirror lamp require different power supply voltages. For example, the light source circuit 20 requires a 5V power supply voltage, while the main control circuit 10 and the human infrared detection circuit 30 require a 3.3V power supply voltage. Therefore, a linear voltage regulator circuit is required to step down and stabilize the voltage input from the power supply input before outputting it. Specifically, the linear voltage regulator circuit includes a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, and a voltage regulator chip. The first end of the first capacitor C1 is electrically connected to the first end of the second capacitor C2, the power supply input, and the VIN pin of the voltage regulator chip; the first end of the third capacitor C3 is electrically connected to the first end of the fourth capacitor C4, the voltage regulator output, and the OUT pin of the voltage regulator chip; and the second end of the first capacitor C1 is electrically connected to the second end of the second capacitor C2, the GND pin of the voltage regulator chip, the second end of the third capacitor C3, the second end of the fourth capacitor C4, and the second end of the ground terminal. The voltage regulator chip can be an AS7133H to ensure the stability and reliability of the output voltage. The input 5V voltage (first voltage) is stabilized and then outputted as 3.3V voltage (second voltage).

[0053] refer to Figure 2 In one embodiment of the present invention, the mirror headlight also includes a prompt circuit, the input end of the prompt circuit is electrically connected to the main control circuit 10, and the prompt circuit is used to output a prompt signal according to the prompt control signal output by the main control circuit 10.

[0054] In this embodiment, the prompt circuit can be implemented using an LED prompt circuit, a voice prompt circuit, or the like. The prompt circuit can be used to inform the user of the current operating mode or power-on / off status of the mirror headlight. Specifically, taking the LED prompt circuit as an example, the prompt circuit includes: a second light-emitting diode D2 and a sixth resistor R6; wherein the anode of the light-emitting diode is electrically connected to the first end of the sixth resistor R6, and the cathode of the light-emitting diode is electrically connected to the ground end; and the second end of the sixth resistor R6 is electrically connected to the main control circuit 10. The second light-emitting diode D2 outputs a prompt signal by receiving a prompt control signal output by the main control circuit 10. When the main control circuit 10 outputs the prompt control signal to the prompt circuit, the second light-emitting diode D2 turns on and outputs a prompt signal to inform the user that the user is currently in automatic sensing mode, i.e., the human infrared detection circuit 30 is in operation, and the light source output can be turned on or off without manual triggering.

[0055] refer to Figure 2 In one embodiment of the present utility model, the main control circuit 10 includes a main control chip and a filter circuit. The first end of the filter circuit is electrically connected to the voltage stabilization output end, and the second end of the filter circuit is electrically connected to the main control chip. The filter circuit is used to filter the input voltage and output it.

[0056] In this embodiment, the filtering circuit includes a sixth capacitor C6, a first end of the sixth capacitor C6 is electrically connected to the voltage stabilization output end and the VDD pin of the main control chip, and a second end of the sixth capacitor C6 is electrically connected to the GND pin of the main control chip and the ground end.

[0057] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A mirror lamp, characterized in that: The front mirror lamp comprises: Main control circuit; a light source circuit, wherein a controlled end of the light source circuit is electrically connected to the main control circuit, and the light source circuit is configured to turn on or off the output of the light source according to a light source control signal output by the main control circuit; A human infrared detection circuit, the output end of which is electrically connected to the main control circuit, for detecting a human body within a preset range and outputting a human infrared detection signal; a switch switching component, wherein an output end of the switch switching component is electrically connected to the main control circuit and is configured to output a switch switching signal when triggered; a mode switching component, wherein an output end of the mode switching component is electrically connected to the main control circuit and is configured to output a mode switching signal when triggered; In which, the main control circuit is used to output the corresponding light source control signal to the light source circuit according to the switch switching signal, so that the light source circuit turns on or off the output of the light source; the main control circuit is also used to output the corresponding detection control signal to the human infrared detection circuit according to the mode switching signal, so that the human infrared detection circuit turns on or off detection.

2. The mirror headlight according to claim 1, characterized in that: The light source circuit comprises: An LED circuit, wherein a first end of the LED circuit is electrically connected to a power input end and is used to output a light source; A switching circuit, wherein the first end of the switching circuit is electrically connected to the second end of the LED circuit, the controlled end of the switching circuit is electrically connected to the main control circuit, the second end of the switching circuit is grounded, and the switching circuit is used to turn on or off the path between the LED circuit and the ground end according to the light source control signal output by the main control circuit.

3. The mirror headlight according to claim 2, characterized in that: The LED circuit includes a first light emitting diode; the switch circuit includes a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, and a switch tube; Among them, the anode of the first light-emitting diode is electrically connected to the power input end, the cathode of the first light-emitting diode is electrically connected to the first end of the first resistor, the first end of the second resistor, and the first end of the third resistor; the second end of the first resistor, the second end of the second resistor, and the second end of the third resistor are electrically connected to the first end of the switching tube; the controlled end of the switching tube is electrically connected to the first end of the fourth resistor and the first end of the fifth resistor, the second end of the switching tube is electrically connected to the second end of the fifth resistor and the ground end; the second end of the fourth resistor is electrically connected to the main control circuit.

4. The mirror headlight according to claim 1, characterized in that: The front mirror lamp also includes a linear voltage stabilizing circuit, the input end of the linear voltage stabilizing circuit is electrically connected to the power input end, the output end of the linear voltage stabilizing circuit is electrically connected to the voltage stabilizing output end, and the linear voltage stabilizing circuit is used to convert the input first voltage into a second voltage and output it stably.

5. The mirror headlight according to claim 4, characterized in that: The linear voltage stabilization circuit includes a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, and a voltage stabilization chip; Among them, the first end of the first capacitor is electrically connected to the first end of the second capacitor, the power input end, and the VIN pin of the voltage stabilizing chip; the first end of the third capacitor is electrically connected to the first end of the fourth capacitor, the voltage stabilizing output end, and the OUT pin of the voltage stabilizing chip; the second end of the first capacitor is electrically connected to the second end of the second capacitor, the GND pin of the voltage stabilizing chip, the second end of the third capacitor, the second end of the fourth capacitor, and the second end of the ground terminal.

6. The mirror headlight according to claim 4, characterized in that: The human infrared detection circuit includes a human infrared sensor and a fifth capacitor; Among them, the first end of the human body infrared sensor is electrically connected to the voltage stabilization output end and the first end of the fifth capacitor, the controlled end of the human body infrared sensor is electrically connected to the main control circuit, and the second end of the human body infrared sensor is electrically connected to the second end of the fifth capacitor and the ground end.

7. The mirror lamp according to claim 1, characterized in that: The front mirror lamp further comprises a prompt circuit, an input end of the prompt circuit is electrically connected to the main control circuit, and the prompt circuit is used for outputting a prompt signal according to a prompt control signal output by the main control circuit.

8. The mirror headlight according to claim 7, characterized in that: The prompt circuit includes: a second light emitting diode and a sixth resistor; The anode of the light-emitting diode is electrically connected to the first end of the sixth resistor, the cathode of the light-emitting diode is electrically connected to the ground end; and the second end of the sixth resistor is electrically connected to the main control circuit.

9. The mirror headlight according to claim 4, characterized in that: The main control circuit includes a main control chip and a filter circuit. The first end of the filter circuit is electrically connected to the voltage stabilization output end, and the second end of the filter circuit is electrically connected to the main control chip. The filter circuit is used to filter the input voltage and then output it.

10. The mirror headlight according to claim 9, characterized in that: The filtering circuit includes a sixth capacitor, a first end of the sixth capacitor is electrically connected to the voltage stabilization output end and the VDD pin of the main control chip, and a second end of the sixth capacitor is electrically connected to the GND pin of the main control chip and the ground end.

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