Three-color conversion dimmable illumination headlamp

Abstract

The utility model discloses a three color transformation light adjusting headlamp, including head bowl, knob, transmission, positioning plate, three color LED lamp board, the head bowl bottom is connected with the knob of movable joint of through connection, and the lower part of knob is exposed in the head bowl outer bottom, the transmission is fixedly connected with the inner end of knob, and the top of transmission is fixedly connected with three color LED lamp board, and the upper section of transmission is movably connected with positioning plate, and the transmission is equipped with the gear adjusting device between positioning plate, and the gear adjusting device is used for adjusting transmission to rotate three gear positions, transmission, positioning plate are arranged in the head bowl, when the product is adjusted to change gear, and the gear adjusting device forms clear one gear one gear positioning, and after positioning, it will not rotate naturally or be touched lightly, the structure is convenient for user to rotate and adjust three color LED lamp board's color change lighting from the bottom of head bowl.

Description

Technical Field

[0001] This utility model relates to outdoor lighting, and more particularly to a three-color changing dimming headlamp. Background Technology

[0002] Chinese Patent Publication No. CN206637312U discloses an LED work headlamp with adjustable multiple light source colors. The LED work headlamp includes a head cup, a knob, and a bottom cover. The head cup has a lamp cup cavity, within which a reflector cup is fixed. A light-transmitting lens and a light-transmitting lens fixing ring are sequentially fixed at the top. The light-transmitting lens fixing ring is tightened onto the top of the head cup to clamp and fix the light-transmitting lens. An electrode pin hole is located in the center of the bottom of the lamp cup cavity, and a lamp plate adjustment hole is located at an off-center position. An LED lamp plate fixing post protrudes from the center of the knob. The knob is located on the outer bottom of the head cup, and the LED lamp plate fixing post is inserted through the lamp plate adjustment hole. An LED lamp plate is fixed to the top of the LED lamp plate fixing post. The LED lamp plate is located at the bottom of the head cup and has several LED beads of different colors arranged in a fan shape fixed on it. The reverse side of the LED lamp plate has a positive electrode plate equal to the number of LED beads and a shared negative electrode plate. The negative electrode plate is connected in parallel with each LED bead, and the positive electrode plate is separate. The LEDs are connected to each LED chip. A circuit board is fixed on the bottom cover, and positive and negative elastic pins are fixed on the circuit board. The bottom cover is connected to the bottom of the head cup. The positive and negative elastic pins pass through the electrode pin holes and press against the corresponding positive and negative plates on the reverse side of the LED light board. The negative plate is always in elastic contact with the negative elastic pin, and the positive plate is in intermittent contact with the positive elastic pin. A knob arrangement notch is provided on one side of the bottom cover, and a knob is placed on the knob arrangement notch. The knob is exposed. Pushing the knob to rotate causes the LED light board to rotate to select the desired color light source. The positive elastic pin falls onto the corresponding positive plate through the rotation of the LED light board, so that the LED chip of the desired color light source is aligned with the center of the reflector cup and emits the desired color light source. The bottom of the head cup has several bottom cover foot fixing holes, and the bottom cover feet pass through the bottom cover foot fixing holes for fixed connection. The bottom cover has a power cord insertion hole, through which the power cord passes and connects to the circuit board.

[0003] The aforementioned adjustable LED work headlamp with multiple light source colors lacks a gear adjustment device, and the LED light panel cannot be positioned and fixed. When the user touches the knob, it easily causes the LED light panel fixing post to rotate, causing the LED light panel to swing and tilt, preventing the LED beads from being centered for external illumination. In addition, the mechanical movable connection between the knob, LED light panel fixing post, and head cup will become looser after prolonged use, and the mechanical movable connection between the LED light panel and reflector cup will also become looser after prolonged use, making it impossible to position and fix the LED light panel, causing it to rotate naturally and preventing normal use. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a three-color changing dimming headlamp with a reasonable structural design, convenient use, and rotary dimming.

[0005] The solution to the above technical problem is as follows: a three-color dimmable headlamp, including a head cup, a knob, a transmission device, a positioning plate, and a three-color LED light panel. The knob is movably connected to the bottom of the head cup, with the lower part of the knob exposed outside the bottom of the head cup. The inner end of the knob is fixedly connected to the transmission device, and the top of the transmission device is fixedly connected to the three-color LED light panel. The upper section of the transmission device is movably connected to the positioning plate. A gear adjustment device is provided between the transmission device and the positioning plate, which is used to adjust the three-position circumferential rotation of the transmission device. The transmission device and the positioning plate are arranged inside the head cup.

[0006] The positioning plate has a positioning hole on one side; the gear adjustment device includes three gear recesses arranged in a ring on the side wall of the transmission device, a ball hole opened horizontally in the positioning plate body, an elastic component, and a ball. The ball hole contains the elastic component and the ball, and the ball partially protrudes from the hole and is embedded in the gear recess; the upper part of the transmission device passes through the positioning hole and forms a movable connection with the positioning plate. The three gear recesses and the ball are set horizontally. When the knob is turned to drive the transmission device to rotate circumferentially, the three gear recesses synchronously change their circumferential positions, and the ball can roll into the three different gear recesses to achieve three-gear adjustment; the three-color LED light panel rotates synchronously with the transmission device.

[0007] The positioning plate has mounting holes, and the bottom of the head bowl has a positioning post. The positioning post is inserted into the mounting holes for fixation, thereby achieving the positioning connection between the head bowl and the positioning plate.

[0008] The head cup has a reflector cup with light fixed inside. The tri-color LED light board has three LED beads of different colors arranged in a fan shape. A clamp is fixed at the bottom of the reflector cup. The clamp has a fan-shaped through hole to expose the three LED beads of different colors for light transmission and illumination. The tri-color LED light board is set at the bottom of the reflector cup. The tri-color LED light board is set between the bottom of the reflector cup and the clamp. The bottom of the reflector cup has a bottom hole. The top of the transmission device passes through the bottom hole.

[0009] The clamping plate and the positioning plate clamp the bottom wall of the reflector cup, and the clamping plate, the bottom wall of the reflector cup, and the positioning plate are all fixed together with screws.

[0010] The clamping plate has a second positioning post at its bottom. The second positioning post passes through the bottom of the reflector cup and is fixedly connected to the positioning plate, thereby realizing the positioning connection between the clamping plate and the positioning plate.

[0011] The tri-color LED light board has three LED beads of different colors arranged in a fan shape. On the back of the tri-color LED light board, there are three positive electrode plates and one negative electrode plate with the same number of LED beads as the LED beads. The three negative electrode plates are connected in parallel with each LED bead, and the positive electrode plate is connected to a single LED bead.

[0012] The three-color changing dimming headlamp also includes a circuit board connected to the bottom of the fixed plate. The positioning plate has a through hole for the positive electrode pin and a through hole for the negative electrode pin. The bottom of the reflector cup has a through hole for the pin. The circuit board is fixed with a positive electrode elastic pin and a negative electrode elastic pin. The positive electrode elastic pin and the negative electrode elastic pin pass through the corresponding positive electrode pin hole, negative electrode pin hole and pin through hole. The positive electrode elastic pin and the negative electrode elastic pin press against the corresponding positive electrode plate and negative electrode plate on the reverse side of the LED light board.

[0013] The outer bottom of the head bowl has an inwardly recessed notch for placing the lower part of the knob and limiting its rotation range, and the knob is arranged in the notch; the transmission device includes transmission component one and transmission component two; the upper part of the knob is fixedly connected to the lower part of transmission component one, and the upper part of transmission component one is fixedly connected to the lower part of transmission component two; the outer periphery of transmission component two is movably fitted with a positioning plate; the outer ring wall of transmission component two has three circumferentially recessed positions, and the three recessed positions are arranged at the same horizontal level.

[0014] The beneficial effects of this utility model of a three-color changing dimming headlamp are as follows: When adjusting the gear, by turning the external knob to the left or right, the transmission device and the three-color LED light panel rotate synchronously in the circumferential direction. During the rotation, the transmission device jumps to different gears at the gear adjustment device, forming a clear gear-by-gear positioning. After positioning, it will not rotate naturally or lightly. This structure makes it convenient for users to adjust the color-changing lighting of the three-color LED light panel by rotating it from the bottom of the head cup. Attached Figure Description

[0015] Figures 1-3 This is a perspective view of the product of this utility model.

[0016] Figure 4 This is a cross-sectional view of the product of this utility model.

[0017] Figures 5-17 This is an exploded view of the product of this utility model.

[0018] 1. Head cup, 1A through hole, 101 positioning pin 1, 102 notch, 2. Knob, 3. Transmission device, 31 transmission component 1, 32 transmission component 2, 4. Positioning plate, 41 positioning hole 1, 42 mounting positioning hole, 43 positive electrode pin hole, 44 negative electrode pin hole, 45 snap fastener, 5. Three-color LED light board, 5. LED beads, 51 positive electrode sheet, 52 negative electrode sheet, 53 gear adjustment device, 6. Gear recess, 61 gear hole, 62 bead hole, 63 elastic component, 64 ball bearing, 7. Reflector cup, 71 cup bottom hole 1, 72 pin through hole, 73 pin through hole, 8. Clamping plate, 81 fan-shaped through hole, 82 positioning pin 2, 9. Circuit board, 91 positive elastic pin, 92 negative elastic pin. Detailed Implementation

[0019] like Figures 1-17 The following describes a tri-color dimmable headlamp, comprising a head cup 1, a knob 2, a transmission device 3, a positioning plate 4, and a tri-color LED light panel 5. The head cup 1, knob 2, and positioning plate 4 are all integrally injection molded from plastic. The bottom of the head cup 1 is movably connected to the knob 2 (preferably, a through hole 1A is provided at the bottom of the head cup 1, through which the knob 2 passes, forming a movable connection). The lower part of the knob 2 protrudes from the bottom of the head cup 1 for hand-operated rotation. The inner end of the knob 2 is fixedly connected to the transmission device 3, the top of which is fixedly connected to the tri-color LED light panel 5. The upper section is connected to a positioning plate 4. A gear adjustment device 6 is provided between the transmission device 3 and the positioning plate 4. The gear adjustment device 6 is used to adjust the three-gear positioning of the transmission device 3 in circumferential rotation. The transmission device 3 and the positioning plate 4 are arranged inside the head cup 1. When adjusting the gear, by turning the knob 2 to the left or right, the transmission device 3 and the tri-color LED light panel 5 rotate synchronously in circumferential direction. During the rotation, the transmission device 3 jumps to the gear adjustment device 6, forming a clear gear positioning through the gear adjustment device 6. After positioning, it will not rotate naturally or lightly. This structure makes it convenient for users to adjust the color-changing lighting of the tri-color LED light panel 5 by rotating it from the bottom of the head cup 1.

[0020] Preferably, the positioning plate 4 has a positioning hole 41 on one side; the gear adjustment device 6 includes three gear recesses 61 arranged in a ring on the side wall of the transmission device 3, a bead hole 62 opened horizontally in the body of the positioning plate 4, an elastic component 63, and a ball 64. The elastic component 63 is a spring. The bead hole 62 is arranged on the side wall of the positioning hole, and the included angle between the bead hole 62 and the positioning hole 41 is 90 degrees. The gear recesses 61 are arranged horizontally in the positioning hole 41. The gear recesses 61 are gear circular recesses or gear grooves, and the bead holes 62 are embedded and fixed. The device includes an elastic component 63 and a ball bearing 64. The ball bearing 64 protrudes partially from the orifice and is embedded in the gear position recess 61. The upper part of the transmission device 3 passes through the positioning hole 41 and is movably connected to the positioning plate 4. The three gear position recesses 61 and the ball bearing 64 are horizontally arranged. When the knob 2 is turned to drive the transmission device 3 to rotate circumferentially, the three gear position recesses 61 synchronously change their positions circumferentially. The ball bearing 64 can roll into the three different gear position recesses 61 to achieve three-gear adjustment and clear gear shifting positioning. The three-color LED light panel 5 rotates synchronously with the transmission device 3. The above is the specific structure of the gear position adjustment device 6. This structure is simple, easy to set up, and easy to roll and switch gears. The elastic component 63 and the ball bearing 64 cooperate to form good elasticity, and the ball bearing 64 has good sliding properties.

[0021] Preferably, the positioning plate 4 has a mounting positioning hole 42, and the bottom of the head bowl 1 has a positioning post 101. The positioning post 101 is inserted into the mounting positioning hole 42 for fixation, so as to realize the positioning connection between the head bowl 1 and the positioning plate 4. Each time the positioning is installed, the designated position is aligned, which improves the installation efficiency and prevents the positioning plate 4 from becoming loose.

[0022] Preferably, a reflector cup 7 for light is fixed inside the head cup 1. The reflector cup 7, head cup 1, and transmission device 3 are arranged coaxially. Three LED beads 51 of different colors (e.g., white LED beads 51, yellow LED beads 51, blue LED beads 51, etc.) are welded and fixed on the tri-color LED light plate 5. A clamping plate 8 is fixedly provided at the bottom inside the reflector cup 7. The clamping plate 8 has a fan-shaped through hole 81 to expose the three LED beads 51 of different colors for light transmission and illumination. The tri-color LED light plate 5 is located at the bottom inside the reflector cup 7. The tri-color LED light plate 5 is positioned between the bottom of the reflector cup 7 and the clamping plate 8. The tri-color LED light plate 5 can rotate circumferentially between them. The bottom of the reflector cup 7 has a bottom hole 71, and the top of the transmission device 3 passes through the bottom hole 71. The clamping plate 8 covers the edge of the tri-color LED light plate 5, which is aesthetically pleasing and simple.

[0023] When the ball bearing 64 falls into the middle position recess 61 of the transmission device 3, the LED bead 51 in the middle position is arranged in the center of the reflector cup 7 to provide external illumination; when the ball bearing 64 falls into the left position recess 61 of the transmission device 3, the LED bead 51 in the left position is arranged in the center of the reflector cup 7 to provide external illumination; when the ball bearing 64 falls into the right position recess 61 of the transmission device 3, the LED bead 51 in the right position is arranged in the center of the reflector cup 7 to provide external illumination.

[0024] The clamping plate 8 and the positioning plate 4 clamp the bottom wall of the reflector cup 7. The clamping plate 8, the bottom wall of the reflector cup 7, and the positioning plate 4 are all fixed together with screws, so that the clamping plate 8 and the positioning plate 4 are fixedly connected to the reflector cup 7 and will not come off.

[0025] Preferably, the bottom of the clamping plate 8 extends with a second positioning post 82, which passes through the bottom of the reflector cup 7 and is fixedly connected to the positioning plate 4 (preferably, the bottom of the reflector cup 7 has a through hole 72, through which the second positioning post 82 passes). The through hole 72 also allows the clamping plate 8 to be quickly installed and aligned. Screws pass through the positioning plate 4 and are screwed onto the second positioning post 82 for fixation, thereby achieving the positioning connection between the clamping plate 8 and the positioning plate 4.

[0026] Preferably, the reverse side of the tri-color LED light board 5 is fixed with three positive electrode plates 52, the same number as the number of LED beads, and one negative electrode plate 53 for common output. The negative electrode plate 53 is connected in parallel with the negative electrode of each LED bead 51, and the three positive electrode plates 52 are individually connected to the positive electrode of a single LED bead 51, so as to facilitate tri-color skip dimming, and only one LED bead 51 is powered on and lit at a time.

[0027] Preferably, the three-color changing dimming headlamp further includes a circuit board 9 connected to the bottom surface of the fixing plate by screws or adhesive. The positioning plate 4 has a through hole 43 for the positive electrode and a through hole 44 for the negative electrode. The bottom of the reflector cup 7 has a through hole 73 for the pin, which is an elongated hole. Positive elastic pins 91 and negative elastic pins 92 are welded and fixed on the circuit board 9. Wires connecting the positive elastic pins 91 and negative elastic pins 92 are welded to the circuit board 9. The positive elastic pins 91 and negative elastic pins 92 pass upward through the corresponding positive electrode pin holes 43, negative electrode pin holes 44 and through holes 73. The positive elastic pins 91 and negative elastic pins 92 press against the corresponding positive electrode plates 52 and negative electrode plates 53 on the reverse side of the LED light panel. The positive electrode pin hole 43 and the negative electrode pin hole 44 provide stable positioning for the positive electrode elastic pin 91 and the negative electrode elastic pin 92, making them more secure and less prone to breakage at the base. When the transmission device 3 rotates in the shifting mode, the three-color LED light panel 5 rotates synchronously. Because the positive electrode elastic pin 91 and the negative electrode elastic pin 92 elastically press against the back of the LED light panel, the negative electrode elastic pin 92 provides elastic contact with the negative electrode piece 53 for conductivity. During rotation, the three positive electrode pieces 52 change positions and make friction contact with the positive electrode elastic pin 91 for conductivity. The positive electrode elastic pin 91 contacts the corresponding positive electrode piece 52, conducting power and illuminating the corresponding LED bead 51. The three positive electrode pieces 52 correspond to the three shifting recesses 61, with one shift corresponding to one positive electrode piece 52. The positive electrode elastic pin 91 only contacts and connects to one corresponding positive electrode piece 52 at a time. This structure achieves three-color dimming lighting, facilitates rotational dimming, and has good conductivity.

[0028] Preferably, the bottom side of the head bowl 1 is provided with an inwardly recessed notch 102 for placing the handle of the knob 2 and limiting its rotation range. The handle of the knob 2 is arranged in the notch 102 to prevent excessive turning of the knob 2 and to prevent damage to the knob 2, the transmission device 3, and the LED light panel. The transmission device 3 includes a first transmission component 31 and a second transmission component 32. The upper part of the knob 2 is connected to the lower part of the first transmission component 31 by a male-female plug-in connection. The knob 2 passes through the through hole 1A at the bottom of the head cup 1. The first transmission component 31 and the knob 2 are clamped at the bottom of the head cup 1 to prevent them from falling off. The upper part of the first transmission component 31 is connected to the lower part of the second transmission component 32 by a male-female plug-in connection. The outer periphery of the second transmission component 32 is movably fitted with a positioning plate 4 (that is, the second transmission component 32 passes through the positioning hole 41 and forms a movable connection with the positioning plate 4. The through hole 1A, the first transmission component 31, the second transmission component 32, and the positioning hole 41 are all round, which are just suitable for the corresponding components to pass through). The outer ring wall of the second transmission component 32 is provided with three circumferentially recessed parts 61. The three circumferentially recessed parts 61 are arranged adjacent to each other and spaced 2-3 mm apart. The three circumferentially recessed parts 61 are arranged at the same level. The top of the transmission component 2 32 passes through the bottom hole 71 of the cup, and the top of the transmission component 2 32 is used to fix one end of the tri-color LED light board 5 with a screw; when the knob 2 is turned, the transmission component 1 31, the transmission component 2 32, and the tri-color LED light board 5 rotate synchronously.

[0029] The top of the head bowl 1 is sequentially fixed with a light-transmitting lens, a rubber sealing ring, and a fixing ring. The inner side of the rubber sealing ring has a groove that fits onto the edge of the light-transmitting lens. The light-transmitting lens is fixed and tightened to the top of the head bowl 1 by the fixing ring.

[0030] A buckle 45 is fixed to the outer end of the positioning plate 4 for positioning and fixing with the inside of the head bowl 1.

Claims

1. A three-color dimmable headlamp, comprising a headcup, a knob, a transmission device, a positioning plate, and a three-color LED light panel, wherein the knob is movably connected to the bottom of the headcup, and the lower part of the knob is exposed outside the bottom of the headcup, characterized in that: The inner end of the knob is fixedly connected to a transmission device, the top of the transmission device is fixedly connected to a three-color LED light panel, a positioning plate is movably connected to the upper section of the transmission device, and a gear adjustment device is provided between the transmission device and the positioning plate. The gear adjustment device is used to adjust the three-gear positioning of the transmission device in the circumferential rotation. The transmission device and the positioning plate are arranged inside the head cup. The positioning plate has a positioning hole on one side; the gear adjustment device includes three gear recesses arranged in a ring on the side wall of the transmission device, a ball hole opened horizontally in the positioning plate body, an elastic component, and a ball. The ball hole contains the elastic component and the ball, and the ball partially protrudes from the hole and is embedded in the gear recess; the upper part of the transmission device passes through the positioning hole and forms a movable connection with the positioning plate. The three gear recesses and the ball are set horizontally. When the knob is turned to drive the transmission device to rotate circumferentially, the three gear recesses synchronously change their circumferential positions, and the ball can roll into the three different gear recesses to achieve three-gear adjustment; the three-color LED light panel rotates synchronously with the transmission device.

2. The three-color changing dimming headlamp as described in claim 1, characterized in that: The positioning plate has mounting holes, and the bottom of the head bowl has a positioning post. The positioning post is inserted into the mounting holes for fixation, thereby achieving the positioning connection between the head bowl and the positioning plate.

3. The three-color changing dimming headlamp as described in claim 1, characterized in that: The head cup has a reflector cup with light fixed inside. The tri-color LED light board has three LED beads of different colors arranged in a fan shape. A clamp is fixed at the bottom of the reflector cup. The clamp has a fan-shaped through hole to expose the three LED beads of different colors for light transmission and illumination. The tri-color LED light board is set at the bottom of the reflector cup. The tri-color LED light board is set between the bottom of the reflector cup and the clamp. The bottom of the reflector cup has a bottom hole. The top of the transmission device passes through the bottom hole.

4. The three-color changing dimming headlamp as described in claim 3, characterized in that: The clamping plate and the positioning plate clamp the bottom wall of the reflector cup, and the clamping plate, the bottom wall of the reflector cup, and the positioning plate are all fixed together with screws.

5. The three-color changing dimming headlamp as described in claim 4, characterized in that: The clamping plate has a second positioning post at its bottom. The second positioning post passes through the bottom of the reflector cup and is fixedly connected to the positioning plate, thereby realizing the positioning connection between the clamping plate and the positioning plate.

6. The three-color changing dimming headlamp as described in any one of claims 1 to 5, characterized in that: The tri-color LED light board has three LED beads of different colors arranged in a fan shape. On the back of the tri-color LED light board, there are three positive electrode plates and one negative electrode plate with the same number of LED beads as the LED beads. The three negative electrode plates are connected in parallel with each LED bead, and the positive electrode plate is connected to a single LED bead.

7. The three-color changing dimming headlamp as described in any one of claims 3 to 5, characterized in that: It also includes a circuit board connected to the bottom of the fixing plate. The positioning plate has a through hole for the positive electrode and a through hole for the negative electrode. The bottom of the reflector cup has a through hole for the pin. The circuit board is fixed with a positive electrode elastic pin and a negative electrode elastic pin. The positive electrode elastic pin and the negative electrode elastic pin pass through the corresponding positive electrode pin hole, negative electrode pin hole and pin through hole. The positive electrode elastic pin and the negative electrode elastic pin press against the corresponding positive electrode sheet and negative electrode sheet on the opposite side of the LED light board.

8. The three-color changing dimming headlamp as described in any one of claims 1 to 5, characterized in that: The outer bottom of the head bowl has an inwardly recessed notch for placing the lower part of the knob and limiting its rotation range, and the knob is arranged in the notch; the transmission device includes transmission component one and transmission component two; the upper part of the knob is fixedly connected to the lower part of transmission component one, and the upper part of transmission component one is fixedly connected to the lower part of transmission component two; the outer periphery of transmission component two is movably fitted with a positioning plate; the outer ring wall of transmission component two has three circumferentially recessed positions, and the three recessed positions are arranged at the same horizontal level.

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