A headlamp lighting device with flexible zoom function

Abstract

The utility model relates to a headlamp lighting device with flexible zoom function belongs to lighting equipment technical field. The device adopts zoom module to replace traditional fixed focus design, changes light source focusing degree through adjusting optical element position, realizes flexible adjustment of focal length. The headlamp main part is built -in light source module for emitting illumination light; Zoom module connects light source module, contains movable optical element to adjust light focus, control module operates zoom module, realizes focal length adjustment, power module is built -in polymer lithium ion battery, has overcharge, overdischarge protection function, headband is used for fixing headlamp main part on the head of user. Control module converts user operation into zoom instruction, drives optical element to move to adapt to different illumination demand, and each component works together to realize the multifunctional illumination of headlamp.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and in particular to a headlamp lighting device with flexible zoom function. Background Technology

[0002] In outdoor activities, nighttime operations, or emergency rescue scenarios, the flexibility of the illumination range of a headlamp, as a portable lighting tool, is particularly important. Existing headlamps typically suffer from two major drawbacks: 1. Fixed focal length limiting applicability: Traditional headlamps can only provide illumination within a fixed range of 5-8 meters. When exploring in the field, frequent head turning to adjust the viewing angle is necessary, and the strong light can easily cause glare during close-range operations; 2. Insufficient reliability of the zoom mechanism: Some high-end headlamps use manual rotary focusing, but their sealing performance is poor (mostly IP54 protection rating), making them prone to failure in humid environments, and their adjustment accuracy is low (steps ≥5mm). Utility Model Content

[0003] The purpose of this invention is to solve the problem mentioned in the background art that traditional headlamps have a fixed lighting range and cannot adapt to different lighting needs. The invention proposes a headlamp lighting device with flexible zoom function and strong adaptability, which can solve the problems of fixed focal length and weak environmental adaptability of traditional headlamps. Through precision mechanical zoom and multiple protection designs, it can achieve continuous focusing from 5 to 20 meters and stable operation in harsh environments.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a headlamp lighting device with flexible zoom function, comprising: a headlamp body, which has a built-in light source module, wherein the light source module includes a 3W spotlight (6500K) and a 2W floodlight (3000K).

[0005] A zoom module is disposed inside the headlamp body. The zoom module includes a movable convex lens (optical element) with a diameter of 20mm and a gear-driven mechanical connection mechanism.

[0006] The control module, connected to the zoom module, includes a waterproof push-button switch and an STM32 microcontroller. The push-button switch drives the convex lens to move along the optical axis via a mechanical connection mechanism.

[0007] The power module, electrically connected to the headlamp body, includes a 2000mAh polymer lithium-ion battery (operating voltage 3.7V) and a TYPE-C charging socket. The battery has overcharge (protection voltage 4.2V±0.05V) and over-discharge (protection voltage 2.75V±0.05V) protection functions.

[0008] The headband is connected to both sides of the headlamp body by buckles. The headband includes an elastic nylon strap (2.5cm wide) and a plastic adjustment buckle, and the adjustment range is suitable for a head circumference of 50-65cm.

[0009] Furthermore, the mechanical connection mechanism of the zoom module consists of a micro gear set and a guide slide rail, which can drive the convex lens to move axially within the range of 0-15mm, realizing continuous adjustment of the focal length from 5-20 meters (in spotlight mode).

[0010] Furthermore, the control module's button switch supports: short press to switch between spotlight / floodlight modes, long press (≥2 seconds) to start zoom adjustment, and each press moves the convex lens by 1mm.

[0011] Furthermore, the power module's TYPE-C socket supports 5V / 1A charging, with a full charge time of ≤2 hours, a battery life of ≥4 hours in spotlight high light mode, and a battery life of ≥12 hours in floodlight low light mode.

[0012] Furthermore, the headlamp body also includes a three-color power indicator (red / yellow / green LED), corresponding to power levels ≤30%, 30%-70%, and ≥70%, respectively. When the power level is below 10%, the red light flashes as an alarm.

[0013] Furthermore, the headlamp body shell is made of ABS+PC composite material, with a protection level of IP66, which can withstand high-pressure water jets (10 bar water pressure, 3 minutes).

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. Through the design of the zoom module, the range can be continuously adjusted from 5 to 20 meters, which increases the applicable scenarios by 3 times compared to fixed focal length headlamps, realizing flexible adjustment of the lighting range and improving the adaptability and practicality of the lighting;

[0016] 2. The control module simplifies focus adjustment and improves user experience; it integrates mode switching and focus adjustment functions with a single button, and can be operated while wearing gloves; it features IP66 protection and a wide operating temperature range to meet the needs of extreme environments.

[0017] 3. The power module uses a polymer lithium-ion battery with overcharge and over-discharge protection to ensure the headlamp's safety and long lifespan; intelligent power consumption control allows for up to 12 hours of continuous use in low-light mode, far exceeding the industry average (8 hours).

[0018] 4. The headband is ergonomically designed to ensure comfortable wear;

[0019] 5. It has a compact structure and high portability, making it suitable for work and activities at night or in low-light environments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the headlamp lighting device of this utility model;

[0021] Figure 2 This is a schematic diagram of the zoom module and control module of the headlamp lighting device of this utility model;

[0022] in:

[0023] 1. Headlamp body; 2. Zoom module window; 3. Control buttons; 4. Battery indicator light; 5. Headband; 21. Convex lens; 22. Gear transmission mechanism; 31. Button switch; 32. Controller; 51. Elastic band; 52. Adjustment buckle; Detailed Implementation

[0024] like Figure 1 As shown, the headlamp lighting device of this utility model includes a headlamp body 1, a zoom module 2, a control module 3, a power module 4, and a headband 5.

[0025] The headlamp body 1 has a built-in light source module for emitting illumination. The zoom module 2 is connected to the light source module and includes at least one movable optical element. Moving this optical element changes the focusing degree of the emitted light, thus adjusting the focal length. The control module 3 controls the operation of the zoom module 2, which can be manual or automatic. The power module 4 provides power to the headlamp body 1 using a polymer lithium-ion battery and features overcharge and over-discharge protection. The headband 5 secures the headlamp body 1 to the user's head and is ergonomically designed for comfortable wear.

[0026] like Figure 2 As shown, the zoom module 2 includes a movable optical element 21, which is connected to the control module 3 via a mechanical connection mechanism 22. The mechanical connection mechanism 22 converts the operation of the control module 3 into the movement of the optical element 21, thereby adjusting the focal length. The control module 3 includes a push-button switch 31, connected to the mechanical connection mechanism 22, for manually adjusting the position of the optical element 21. The power module 4 includes a TYPE-C socket, which is electrically connected to an external power adapter for charging the polymer lithium-ion battery.

[0027] The headband 5 includes an elastic band 51 and an adjustment buckle 52. The elastic band 51 is connected to both sides of the headlamp body 1, and the adjustment buckle 52 is used to adjust the size of the headband to suit different users.

[0028] The light source module includes a spotlight and a floodlight, which are connected to the zoom module 2 to provide different lighting modes. The zoom module 2 is designed to allow users to adjust the focal length within a preset range.

[0029] The device also includes a power indicator, which is electrically connected to the power module 4, for displaying the remaining power of the power module.

[0030] The headlamp's main body is injection molded from ABS+PC composite material, weighing 85g. It features a 30mm diameter optical window (covered with high-transmittance glass) at the front. The light source module includes a 3W high-power LED (6500K, color temperature deviation ±300K) spotlight with a center luminous intensity of 12000cd, and a 2W SMD LED (3000K) floodlight with a 120° beam angle, providing uniform illumination at close range.

[0031] according to Figure 2 As shown, the zoom module works as follows: The mechanical connection mechanism consists of a micro gear set (module 0.3) and a stainless steel guide rail. After receiving the button signal, the STM32 controller of the control module drives the gear set to move the convex lens along the optical axis. When the convex lens is at its foremost position (0mm), the spotlight is focused at 20 meters; when it moves to the 15mm position, it is focused at 5 meters. During the adjustment process, the light spot transitions evenly without any breaks.

[0032] The power module's 2000mAh lithium battery uses lithium iron phosphate material and has a cycle life of ≥500 cycles. The TYPE-C charging socket is located on the side of the headlamp body and is equipped with a silicone waterproof plug. The indicator light is red when charging and turns green when fully charged. The power indicator consists of three surface-mount LEDs integrated around the buttons, automatically displaying the current power level upon power-on.

[0033] The headband's elastic nylon strap uses a 4-strand braiding process, with a tensile strength ≥50N. The adjustment buckle is made of PA66 plastic, and the length can be adjusted with a precision of 1cm by rotating the knob. When worn, the forehead contact area is equipped with a 10mm thick sponge pad with a pressure ≤0.15MPa (comfort threshold).

[0034] Usage procedure: Press and hold the button for 2 seconds to turn on (default spotlight mode), short press to switch to floodlight mode; press and hold the button to enter the focus mode, each press moves the convex lens by 1mm (corresponding to a focal length change of about 1 meter), release the button for 3 seconds to exit the focus mode.

[0035] 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 this 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. A headlamp lighting device having a flexible zoom function, characterized by comprising: include: The headlamp body has a built-in light source module, which includes a 3W spotlight and a 2W floodlight; A zoom module, housed within the headlamp body, includes a 20mm diameter movable convex lens and a gear-driven mechanical connection mechanism; a control module, connected to the zoom module, includes a waterproof push-button switch and an STM32 microcontroller, the push-button switch driving the convex lens to move along the optical axis via the mechanical connection mechanism; a power module, electrically connected to the headlamp body, includes a 2000mAh polymer lithium-ion battery and a TYPE-C charging socket; and a headband, connected to both sides of the headlamp body via buckles, the headband including an elastic nylon strap and a plastic adjustment buckle.

2. The headlamp illumination device of claim 1, wherein The mechanical connection mechanism of the zoom module consists of a micro gear set and a guide rail, which can drive the convex lens to move axially within the range of 0-15mm, so as to achieve continuous adjustment of the focal length from 5 to 20 meters.

3. The headlamp illumination device of claim 1, wherein, The control module's button switch supports: short press to switch between spotlight / floodlight modes, long press to activate zoom adjustment, and each press moves the convex lens by 1mm.

4. The headlamp illumination device of claim 1, wherein, The power module further includes a TYPE-C socket for electrical connection to an external power adapter.

5. The headlamp illumination device of claim 1, wherein, The headlamp body also includes a three-color power indicator (red / yellow / green LED), corresponding to power levels ≤30%, 30%-70%, and ≥70%, respectively. When the power level is below 10%, the red light flashes as an alarm.

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