Combined headlamp
By designing the heat dissipation channel and heat dissipation rack in the combined headlights, and using thermal grease layer and air flow, the problem of low heat dissipation efficiency of high-power lamps is solved, achieving a more efficient heat dissipation effect, ensuring the stable work of the lamps.
Patent Information
- Application Number
- CN202420360263.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-26
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-02-26
AI Technical Summary
The prior art is difficult to meet the heat dissipation needs of high-power combined headlights, and the traditional single-sided thermal conduction method is inefficient and difficult to dissipate heat evenly.
A combined headlight is designed, using a heat dissipation channel extending in the front and rear directions, and a heat dissipation rib and a heat dissipation column are installed to form a heat dissipation frame. The light source plate is installed here, and the thermal conductivity efficiency is improved through the thermal grease layer and formed in the radiator. The air flows the space to dissipate heat evenly.
It significantly improves the heat transfer efficiency of the light source board and ensures the stable operation of the combined headlights. It is especially suitable for lamps with high power. Through the combination of air transfer and thermal grease layers, a more efficient heat dissipation effect is achieved.
Smart Images
Figure CN222278320U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a lighting device, in particular to a combined headlight. Background Art
[0002] When the headlight is working, the light source will generate a lot of heat. At this time, the heat sink inside the headlight needs to be used to dissipate the heat of the light source. Currently, the light source is generally placed close to one end of the radiator, and the heat of the light source is transferred to the radiator through unilateral heat conduction, so as to use the radiator to accelerate the heat dissipation of the light source. However, when there are multiple combinations of lamp beads in the light source, the power of the entire light source will increase, and the required heat dissipation will also be larger. The current heat dissipation method is difficult to meet the use needs. Therefore, a combination headlight with better heat dissipation effect is urgently needed. Utility Model Content
[0003] The utility model aims to provide a combined headlight to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.
[0004] The solution of the utility model to solve the technical problem is:
[0005] A combination headlight comprises a radiator, a heat dissipation channel extending in the front-to-back direction is formed inside the radiator, two side walls facing each other in the heat dissipation channel are connected with heat dissipation ribs, and a heat dissipation column is connected between the two heat dissipation ribs; a light source plate is connected to the front side of the heat dissipation column, and the two sides of the light source plate are respectively against the two heat dissipation ribs; a front cover is connected to the front side of the radiator, and a light outlet is arranged in the front cover; a lens is located between the radiator and the front cover.
[0006] This technical solution has at least the following beneficial effects: two heat dissipation ribs facing each other in the heat dissipation channel and the heat dissipation column connected between the two heat dissipation ribs form a heat dissipation frame, and the light source board is installed on the heat dissipation frame. When working, the light generated by the light source board is emitted outward from the light outlet of the front cover through the lens, and the heat of the light source board can not only be directly transferred to the heat dissipation column, but also be transferred to the heat dissipation ribs from both sides, thereby improving the efficiency of the light source board in transferring heat outward, and a heat dissipation channel is also formed in the radiator, and the heat dissipation channel can form a space for air flow, so that the temperature distribution inside the radiator is more uniform, thereby transferring the heat of the light source board to the radiator through the air, and finally dissipating it outward, thus greatly improving the efficiency of the radiator in dissipating heat to the light source, which is beneficial to ensuring the stable operation of the combination headlights, especially for combination headlights with higher power.
[0007] As a further improvement of the above technical solution, a thermal grease layer is provided between the light source board and the heat dissipation column and the two heat dissipation ribs. The light source board is in contact with the heat dissipation column and the two heat dissipation ribs through the thermal grease layer, and the thermal grease has high thermal conductivity, excellent thermal conductivity and good electrical insulation, thereby further improving the thermal conductivity efficiency of the light source board.
[0008] As a further improvement of the above technical solution, the light source board includes a board body and a plurality of lamp beads connected to the board body, and at least two of the lamp beads have different powers. The board body is used to be connected to the heat dissipation column and abut against the heat dissipation ribs on both sides. When working, the two lamp beads with different powers can also work at the same time, thereby improving the light output effect, and the heat generated by the multiple lamp beads is transferred to the radiator through the board body to achieve efficient heat dissipation.
[0009] As a further improvement of the above technical solution, the heat sink is provided with a concave stop at the front end of the channel, the outer side of the lens is connected with a connecting edge, the connecting edge extends around the lens, the connecting edge is connected in cooperation with the concave stop, and the front cover presses the connecting edge into the concave stop. The outer side of the lens has a connecting edge for installation and positioning. During assembly, the connecting edge of the outer side of the lens is embedded in the concave stop, which can realize the rapid installation of the lens, and then the front cover is connected to the front side of the heat sink, and the connecting edge is pressed into the concave stop by the front cover, thereby improving the installation efficiency of the lens and making the overall assembly structure more compact.
[0010] As a further improvement of the above technical solution, a sealing ring is connected to the concave stopper, and the sealing ring is located on the side of the connecting edge away from the front cover. Before assembling the lens, the sealing ring is first installed in the concave stopper, and then the connecting edge of the lens is embedded in the concave stopper. When the front cover presses the connecting edge, the connecting edge can squeeze and deform the sealing ring, and the sealing ring is used to increase the sealing of the lens assembly, thereby improving the waterproof performance.
[0011] As a further improvement of the above technical solution, a mounting bracket is connected to the bottom side of the radiator, and the mounting bracket can be rotated and positioned relative to the radiator along the horizontal rotation axis, and a positioning space that can be opened and closed is formed in the mounting bracket. When it is necessary to connect to the structure of an external device, it can be installed and positioned through the mounting bracket. Specifically, before installation, the positioning space can be opened, and the mounting bracket can be matched to the structure of the external device, such as the rod body, and then the positioning space can be closed so that the mounting bracket is relatively fixed to the structure of the external device. Finally, the position of the mounting bracket can be rotated and adjusted according to the use needs and positioned, thereby improving the convenience and flexibility of installation.
[0012] As a further improvement of the above technical solution, the mounting bracket includes an upper positioning block, a lower positioning block and a locking bolt, the upper positioning block can be rotated and positioned relative to the radiator along the horizontal rotation axis, two locking bolts are connected between the upper positioning block and the lower positioning block, and the positioning space is formed between the upper positioning block and the lower positioning block. When the positioning space needs to be opened, the locking bolt is screwed out from the lower positioning block, and the positioning space between the upper positioning block and the lower positioning block can be opened, and then the upper positioning block and the lower positioning block are placed on both sides of the peripheral structure to be fixed, and the locking bolt is reconnected to the upper positioning block, so that the upper positioning block and the lower positioning block are locked and positioned on the peripheral structure.
[0013] As a further improvement of the above technical solution, a positioning pad is provided on one side of the upper positioning block and the lower positioning block facing each other. When the upper positioning block and the lower positioning block are placed on both sides of the peripheral structure, the two positioning pads contact the peripheral structure, and the positioning pads can reduce the wear when contacting the peripheral structure, and can enhance the firmness of the upper positioning block and the lower positioning block when clamping and fixing the peripheral structure.
[0014] As a further improvement of the above technical solution, the utility model further includes a rear cover, which is connected to the rear side of the radiator. The rear cover can block the rear end of the heat dissipation channel, thereby reducing the direct intrusion of water vapor into the electrical components inside the heat dissipation channel and improving the overall working stability.
[0015] As a further improvement of the above technical solution, the utility model further includes an outer plate, which is located at the rear side of the rear cover, and the left and right sides of the outer plate extend forward to the left and right sides of the front cover located at the light outlet. The outer plate can surround and protect the front cover, the heat sink and the rear cover, and improve the structural stability of the overall assembly connection. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following is a brief description of the drawings required for the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present utility model, not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.
[0017] Figure 1 It is a schematic diagram of the overall explosion structure of the utility model.
[0018] Figure 2 It is a schematic diagram of the overall assembly structure of the utility model.
[0019] Figure 3 The utility model is a schematic diagram of the separate structure of the radiator, the sealing ring, the lens and the front cover.
[0020] In the attached drawings: 100-heat sink, 110-heat dissipation channel, 120-heat dissipation rib, 130-heat dissipation column, 140-recessed stopper, 150-sealing ring, 200-light source board, 300-front cover, 310-light outlet, 400-lens, 410-connecting edge, 500-mounting bracket, 510-positioning space, 520-upper positioning block, 530-lower positioning block, 540-locking bolt, 550-positioning pad, 600-back cover, 700-outer plate. DETAILED DESCRIPTION
[0021] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0022] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0023] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0024] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.
[0025] Reference Figure 1 and Figure 2A combination headlight comprises a radiator 100, a light source board 200, a front cover 300 and a lens 400, wherein a heat dissipation channel 110 extending in a front-to-back direction is formed inside the radiator 100, two side walls facing each other in the heat dissipation channel 110 are connected with heat dissipation ribs 120, a heat dissipation column 130 is connected between the two heat dissipation ribs 120, the light source board 200 is connected to the front side of the heat dissipation column 130, two sides of the light source board 200 are respectively against the two heat dissipation ribs 120, the front cover 300 is connected to the front side of the radiator 100, a light outlet 310 is arranged in the front cover 300, and the lens 400 is located between the radiator 100 and the front cover 300.
[0026] From the above, it can be known that the two heat dissipation ribs 120 facing each other in the heat dissipation channel 110 and the heat dissipation column 130 connected between the two heat dissipation ribs 120 form a heat dissipation frame, and the light source board 200 is installed on the heat dissipation frame. When working, the light generated by the light source board 200 is transmitted through the lens 400 and shines outward from the light outlet 310 of the front cover 300. The heat of the light source board 200 can not only be directly transferred to the heat dissipation column 130, but also be transferred to the heat dissipation ribs 120 from both sides, thereby improving the efficiency of the light source board 200 in transferring heat outward, and a heat dissipation channel 110 is also formed in the radiator 100. The heat dissipation channel 110 can form a space for air flow, so that the temperature distribution inside the radiator 100 is more uniform, thereby transferring the heat of the light source board 200 to the radiator 100 through the air, and finally dissipating it outward, thereby greatly improving the efficiency of the radiator 100 in dissipating heat to the light source, which is beneficial to ensuring the stable operation of the combination headlights, especially suitable for combination headlights with higher power.
[0027] In order to speed up the efficiency of heat conduction from the light source board 200 to the outside, in this embodiment, a thermal grease layer is provided between the light source board 200 and the heat dissipation column 130 and the two heat dissipation ribs 120. In practical applications, the thermal grease layer is the thermal grease coated on the surface of the heat dissipation column 130 and the heat dissipation rib 120 or the side of the light source board 200. As for the connection between the light source board 200 and the heat dissipation column 130, screws or bolts or other connectors can be driven into the light source board 200 to connect to the heat dissipation column 130. The light source board 200 is in contact with the heat dissipation column 130 and the two heat dissipation ribs 120 through the thermal grease layer, and the thermal grease has high thermal conductivity, excellent thermal conductivity, and good electrical insulation, thereby further improving the thermal conductivity efficiency of the light source board 200.
[0028] The light source board 200 may be provided with a plurality of lamp beads combined with each other, so as to improve the light output. In the present embodiment, the light source board 200 includes a board body, a plurality of lamp beads connected to the board body, the board body is connected to the heat dissipation column 130, and the two sides of the board body are against the two heat dissipation ribs 120, and the power of at least two of the lamp beads is different from each other. In practical applications, a plurality of high-power lamp beads may be arranged on the board body, and a plurality of low-power lamp beads may be arranged on the board body. For example, the number of high-power lamp beads is six, and the low-power lamp beads may be colored and configured with four. The board body is used to be connected to the heat dissipation column 130 and against the heat dissipation ribs 120 on both sides. When working, two lamp beads with different powers can also work at the same time, so as to improve the light output effect, and the heat generated by the plurality of lamp beads is transferred to the heat sink 100 through the board body, so as to achieve efficient heat dissipation.
[0029] In the above embodiment, the lens 400 can be directly mounted and fixed on the heat sink 100, or can be pressed and fixed on the heat sink 100 through the front cover 300. In order to improve the convenience of assembly, Figure 3 As shown, in this embodiment, the heat sink 100 is provided with a concave stop 140 at the front end of the channel, and a connecting edge 410 is connected to the outside of the lens 400. The connecting edge 410 extends around the lens 400, and the connecting edge 410 is connected in cooperation with the concave stop 140. The front cover 300 presses the connecting edge 410 into the concave stop 140. The outside of the lens 400 has a connecting edge 410 for installation and positioning. During assembly, the connecting edge 410 of the outside of the lens 400 is embedded in the concave stop 140, so that the lens 400 can be quickly installed. Then, the front cover 300 is connected to the front side of the heat sink 100, and the connecting edge 410 is pressed into the concave stop 140 by using the front cover 300. In this way, the installation efficiency of the lens 400 is improved, and the overall assembly structure is more compact.
[0030] Furthermore, a sealing ring 150 is connected to the concave stopper 140, and the sealing ring 150 is located on the side of the connecting edge 410 away from the front cover 300. Before assembling the lens 400, the sealing ring 150 is first installed in the concave stopper 140, and then the connecting edge 410 of the lens 400 is embedded in the concave stopper 140. When the front cover 300 presses the connecting edge 410, the connecting edge 410 can squeeze and deform the sealing ring 150, and the sealing ring 150 is used to increase the sealing of the lens 400 assembly, thereby improving the waterproof performance.
[0031] In order to facilitate the installation and fixing of the whole on the structure of the external device, in this embodiment, the bottom side of the radiator 100 is connected with a mounting bracket 500, and the mounting bracket 500 can be rotated and positioned along the horizontal rotation axis relative to the radiator 100, and a positioning space 510 that can be opened and closed is formed in the mounting bracket 500. When it is necessary to connect to the structure of the external device, the mounting bracket 500 can be installed and positioned. Specifically, before installation, the positioning space 510 can be opened, and the mounting bracket 500 can be matched to the structure of the external device, such as the rod body, and then the positioning space 510 can be closed, so that the mounting bracket 500 is relatively fixed to the structure of the external device, and finally the position of the mounting bracket 500 can be rotated and adjusted according to the use needs and positioned, thereby improving the convenience and flexibility of installation.
[0032] In actual applications, a fixing frame is connected to the bottom side of the radiator 100, and connecting bolts can be passed through the fixing frame in a horizontal direction. The connecting bolts also pass through the mounting bracket 500 and are connected with connecting nuts. At this time, the mounting bracket 500 can rotate relative to the radiator 100 with the connecting bolts as a rotating axis. After rotating and adjusting the position of the mounting bracket 500, the connecting nut is locked so that the mounting bracket 500 and the fixing bracket are pressed against each other, thereby realizing the rotation adjustment and positioning of the mounting bracket 500.
[0033] An openable and closable positioning space 510 is formed in the mounting bracket 500. For example, a structure such as a clamp or a clamp can be provided in the mounting bracket 500. By opening or closing the clamp or the clamp, the entire mounting bracket 500 can be fixed to the structure of the external device. In this embodiment, the mounting bracket 500 includes an upper positioning block 520, a lower positioning block 530 and a locking bolt 540. The upper positioning block 520 can be rotated and positioned along a horizontal rotation axis relative to the radiator 100. Two locking bolts 540 are connected between the upper positioning block 520 and the lower positioning block 530. The positioning space 510 is formed between the upper positioning block 520 and the lower positioning block 530. In actual application, the above-mentioned connecting bolt passes through the fixed bracket and then through the upper positioning block 520. When the connecting nut is locked, the fixed bracket and the upper positioning block 520 are pressed against each other, so that the rotation adjustment and positioning of the two can be achieved. As for the connection between the upper positioning block 520 and the lower positioning block 530, one locking bolt 540 can be passed through the lower positioning block 530 from bottom to top and then connected to the upper positioning block 520, and the other locking bolt 540 can be passed through the upper positioning block 520 from top to bottom and then connected to the lower positioning block 530. The two locking bolts 540 are respectively located on both sides of the positioning space 510, so that the upper positioning block 520 and the lower positioning block 530 are subjected to more uniform force when connected. When it is necessary to open the positioning space 510, unscrew the locking bolt 540 from the lower positioning block 530. At this time, the positioning space 510 between the upper positioning block 520 and the lower positioning block 530 can be opened. Then, the upper positioning block 520 and the lower positioning block 530 are placed on both sides of the external structure that needs to be fixed, and the locking bolt 540 is reconnected to the upper positioning block 520, so that the upper positioning block 520 and the lower positioning block 530 are locked and positioned on the external structure.
[0034] In practical applications, the bottom side of the upper positioning block 520 and the top side of the lower positioning block 530 may be provided with recesses, so as to facilitate the insertion and positioning of the structure of the peripheral device. For example, an arc-shaped groove is provided on the bottom side of the upper positioning block 520, and an arc-shaped groove is also provided on the top side of the lower positioning block 530. The above-mentioned positioning space 510 can be formed between the two arc-shaped grooves. In order to improve the positioning effect of the peripheral structure, in this embodiment, the upper positioning block 520 and the lower positioning block 530 are provided with positioning pads 550 on the sides facing each other. When the upper positioning block 520 and the lower positioning block 530 are placed on both sides of the peripheral structure, the two positioning pads 550 contact the structure of the peripheral device. The positioning pads 550 can reduce the wear when contacting the peripheral structure, and can enhance the firmness of the upper positioning block 520 and the lower positioning block 530 when clamping and fixing the peripheral structure.
[0035] Some embodiments of the combination headlight further include a rear cover 600, which is connected to the rear side of the radiator 100. The rear cover 600 can block the rear end of the heat dissipation channel 110, thereby reducing the direct intrusion of water vapor into the electrical components inside the heat dissipation channel 110 and improving the overall working stability.
[0036] As some embodiments of the combination headlight, a peripheral plate 700 is further included, and the peripheral plate 700 is located at the rear side of the rear cover 600, and the left and right sides of the peripheral plate 700 extend forward to the left and right sides of the front cover 300 located at the light outlet 310. The peripheral plate 700 can surround and protect the front cover 300, the radiator 100 and the rear cover 600, and improve the structural stability of the overall assembly connection. In practical applications, screws or bolts or other connecting members can be driven into the peripheral plate 700 to connect to the radiator 100, and the stability of the connection of the peripheral plate 700 can be improved, and heat dissipation holes or other structures can be provided on the peripheral plate 700 to improve the heat dissipation effect of the radiator 100. In addition, in order to protect the top of the radiator 100, a top cover sheet can be provided on the top side of the radiator 100, and the top cover sheet is connected to the top side of the radiator 100 by driving screws or bolts or other connecting members, and the top cover sheet can be used to protect the top side of the radiator 100.
[0037] The preferred implementation modes of the present invention are specifically described above, but the present invention is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.
Claims
1. A combination headlight, characterized in that: include: The heat sink (100) is enclosed inside and is formed with a heat dissipation channel (110) extending in the front-to-back direction, two mutually opposite side walls in the heat dissipation channel (110) are connected with heat dissipation ribs (120), and a heat dissipation column (130) is connected between the two heat dissipation ribs (120); A light source plate (200) is connected to the front side of the heat dissipation column (130), and two sides of the light source plate (200) are respectively against the two heat dissipation ribs (120); A front cover (300) connected to the front side of the heat sink (100), wherein a light outlet (310) is provided in the front cover (300); The lens (400) is located between the heat sink (100) and the front cover (300).
2. A combination headlight according to claim 1, characterized in that: A thermal conductive silicone grease layer is provided between the light source panel (200), the heat dissipation column (130), and the two heat dissipation ribs (120).
3. A combination headlight according to claim 1, characterized in that: The light source board (200) comprises a board body and a plurality of lamp beads connected to the board body, wherein the powers of at least two of the lamp beads are different from each other.
4. A combination headlight according to claim 1, characterized in that: The heat sink (100) is provided with a recessed stop (140) at the front end of the channel, and a connecting edge (410) is connected to the outer side of the lens (400). The connecting edge (410) extends around the lens (400), and the connecting edge (410) is connected to the recessed stop (140). The front cover (300) presses the connecting edge (410) into the recessed stop (140).
5. A combination headlight according to claim 4, characterized in that: A sealing ring (150) is connected inside the concave stop (140), and the sealing ring (150) is located on a side of the connecting edge (410) away from the front cover (300).
6. The combination headlight according to claim 1, characterized in that: The bottom side of the radiator (100) is connected to a mounting bracket (500), and the mounting bracket (500) can be rotated and positioned relative to the radiator (100) along a horizontal rotation axis, and an openable and closable positioning space (510) is formed in the mounting bracket (500).
7. A combination headlight according to claim 6, characterized in that: The mounting bracket (500) comprises an upper positioning block (520), a lower positioning block (530) and a locking bolt (540); the upper positioning block (520) can be rotated and positioned along a horizontal rotation axis relative to the radiator (100); two locking bolts (540) are connected between the upper positioning block (520) and the lower positioning block (530); and the positioning space (510) is formed between the upper positioning block (520) and the lower positioning block (530).
8. The combination headlight according to claim 7, characterized in that: Positioning pads (550) are provided on the sides of the upper positioning block (520) and the lower positioning block (530) that face each other.
9. The combination headlight according to claim 1, characterized in that: It also includes a rear cover (600), wherein the rear cover (600) is connected to the rear side of the heat sink (100).
10. A combination headlight according to claim 9, characterized in that: It also includes an outer plate (700), which is located at the rear side of the rear cover (600), and the left and right sides of the outer plate (700) respectively extend forward to the left and right sides of the front cover (300) located at the light outlet (310).