Anti-fogging car lamp

Abstract

The invention relates to the technical field of vehicle lamps, in particular to an anti-fogging vehicle lamp which comprises a rear shell, a bulb, a lampshade and a lens are fixedly connected in the rear shell, an air inlet is formed in the end face of the rear shell, a heat dissipation mechanism is arranged in the air inlet and used for dissipating heat of the bulb, and a demisting mechanism is arranged in the lampshade. The demisting mechanism comprises a heating cover fixedly connected to the rear end of the lampshade, a plurality of ceramic heating pieces are fixedly connected in the heating cover, a communicating hole is formed in the rear end face of the lampshade, the communicating hole corresponds to the heating cover in position, an air expanding mechanism is arranged in the communicating hole, an exhaust port is formed in the front end face of the lampshade, and an exhaust pipe is fixedly connected in the exhaust port. Under the action of the ceramic heating piece, high-temperature air is blown out of the communicating hole, then the high-temperature air is blown to the surface of the lens in a reciprocating diffusion mode, then mist on the surface of the lens can be rapidly evaporated, and the demisting effect is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle lamps, and more particularly to an anti-fogging vehicle lamp. Background Art

[0002] The headlights are the eyes of the car. They have the function of illuminating the road and ensuring the safety of motor vehicles driving at night. However, in winter, when the headlights are turned off after being used for a long time, the temperature difference between the inside and outside of the headlights will cause fog to appear on the inner wall of the transparent lampshade. Or the vehicle wading, washing, etc. will also cause water vapor to enter the headlights and cause fogging. Fogging not only affects the service life and appearance of the headlights, but also greatly reduces the lighting effect, thereby affecting driving safety.

[0003] The shortcomings of the existing technology: After water mist appears on the headlights, it is generally necessary to turn on the headlights for about half an hour to evaporate the water mist through heat, but it still takes a certain amount of time. The evaporation efficiency of the water mist is slow, and there is still a situation that affects driving safety. For this reason, we propose an anti-fogging headlight. Summary of the invention

[0004] In order to overcome the above defects of the prior art, the present invention provides an anti-fogging vehicle lamp to solve the problems existing in the above background technology.

[0005] The present invention provides the following technical solution: an anti-fogging vehicle lamp, comprising a rear shell, a bulb, a lampshade and a lens fixedly connected in the rear shell, an air inlet opened on the end surface of the rear shell, a heat dissipation mechanism arranged in the air inlet, the heat dissipation mechanism used to dissipate heat from the bulb, a defogger arranged in the lampshade, the defogger comprising a heating cover fixedly connected to the rear end of the lampshade, a ceramic heating sheet fixedly connected in the heating cover, a plurality of ceramic heating sheets arranged, a connecting hole opened on the rear end surface of the lampshade, the connecting hole corresponding to the position of the heating cover, an air expansion mechanism arranged in the connecting hole, an exhaust port opened on the front end surface of the lampshade, an exhaust pipe fixedly connected in the exhaust port, and an output end of the exhaust pipe located outside the rear shell;

[0006] Preferably, the heat dissipation mechanism includes a mounting base and a dust net fixedly connected in the air inlet, a motor is fixedly connected in the mounting base, a rotating shaft is fixedly connected to the output end of the motor, fan blades are fixedly connected to the circumferential surface of the rotating shaft, a heat sink is arranged in the bulb, the fan blades are opposite to the heat sink, and the dust net is located behind the motor.

[0007] Preferably, a humidity sensor is fixedly connected to the front end of the lampshade, and a controller is fixedly connected to the rear end of the lampshade, and the controller is used to control the opening and closing of the ceramic heating plate.

[0008] Preferably, the air expansion mechanism includes a plurality of first rotating rods and a plurality of second rotating rods rotatably connected in the connecting hole, longitudinal air guide vanes are fixedly connected between the first rotating rods, and transverse air guide vanes are fixedly connected between the second rotating rods.

[0009] Preferably, the circumferential surface of the first rotating rod is fixedly connected to the first gear, the circumferential surface of the second rotating rod is fixedly connected to the second gear, the rear end surface of the lampshade is provided with a first mounting groove and a second mounting groove, the first mounting groove and the second mounting groove are both fixedly connected to sliding rods, the circumferential surface of the sliding rod is slidably connected to a pair of racks, the rack in the first mounting groove is meshed with the first gear, and the rack in the second mounting groove is meshed with the second gear.

[0010] Preferably, the rear end of the lampshade is fixedly connected to two groups of rotating seats, and the rotating seats are respectively rotatably connected to the first connecting shaft and the second connecting shaft, the circumferential surfaces of the first connecting shaft and the second connecting shaft are fixedly connected to cams, the rear end of the rack is fixedly connected to a driving rod, the cam is fitted with the driving rod, and a spring is fixedly connected between the rack and the lampshade.

[0011] Preferably, the rear end of the lampshade is fixedly connected to a motor, the output end of the motor is fixedly connected to a drive shaft, the circumferential surface of the drive shaft is fixedly connected to a first sprocket and a first bevel gear, the circumferential surface of the first connecting shaft is fixedly connected to a second bevel gear, the circumferential surface of the second connecting shaft is fixedly connected to a second sprocket, the first bevel gear is meshed with the second bevel gear, and the first sprocket and the second sprocket are connected by a chain.

[0012] Preferably, the motor is connected to the controller via an electric wire, and the motor and the ceramic heating plate are turned on and off synchronously.

[0013] Technical effects and advantages of the present invention:

[0014] 1. The present invention controls the operation of the heat dissipation mechanism to draw outside air into the rear shell through the air inlet, so that the outside air blows on the heat sink on the bulb to take away the heat emitted by the bulb when it is working, and the temperature of the air after passing around the bulb will increase, and then the hot air will enter the space between the lampshade and the lens, and then the hot air will be discharged to the outside through the exhaust port and the exhaust pipe. While dissipating the heat of the bulb, the space inside the lens has hot air circulation, making it less likely to fog, reducing the probability of lens fogging, and when fogging occurs on the inner surface of the lens, it can also have the effect of preheating the air.

[0015] 2. The present invention controls the ceramic heating plate in the heating cover to turn on, so that the temperature of the air passing through the heating cover is quickly increased, and the temperature of the air entering the lens area is relatively high. The high-temperature air is blown toward the lens. At this time, under the action of the reciprocating swing of the longitudinal air guide plate and the transverse air guide plate in the air expansion mechanism, the air blown out through the connecting hole is blown on the lens surface in the form of reciprocating diffusion, so that the lens surface is evenly heated, and the fog on the lens surface can be quickly evaporated. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the rear view in the present invention.

[0018] Figure 3 It is a schematic diagram of the splitting in the present invention.

[0019] Figure 4 It is a schematic diagram of the rear shell in the present invention.

[0020] Figure 5 It is a schematic diagram of a cross-section view in the present invention.

[0021] Figure 6 It is a schematic diagram of the front view of the lampshade in the present invention.

[0022] Figure 7 It is a schematic diagram of the rear view of the lampshade in the present invention.

[0023] Figure 8 It is a schematic diagram of the air expansion mechanism in the present invention.

[0024] The accompanying drawings are marked as follows: 1. rear shell; 101. bulb; 102. lampshade; 103. lens; 104. air inlet; 2. heat dissipation mechanism; 201. mounting base; 202. dust screen; 203. motor; 204. rotating shaft; 205. fan blade; 206. heat sink; 3. defogger; 301. heating cover; 302. ceramic heating plate; 303. connecting hole; 4. air expansion mechanism; 401. first rotating rod; 402. second rotating rod; 403. longitudinal air guide plate; 404. transverse air guide plate; 405. first Gear; 406, second gear; 407, first mounting slot; 408, second mounting slot; 409, slide bar; 4010, rack; 5, exhaust port; 501, exhaust pipe; 6, humidity sensor; 601, controller; 7, rotating seat; 701, first connecting shaft; 702, second connecting shaft; 703, cam; 704, driving rod; 705, spring; 706, motor; 707, driving shaft; 708, first sprocket; 709, first bevel gear; 7010, second bevel gear; 7011, second sprocket. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are only examples. The anti-fogging vehicle lamp involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0026] like Figure 1-8 As shown, in one embodiment, an anti-fogging vehicle lamp is proposed, including a rear shell 1, in which a bulb 101, a lampshade 102 and a lens 103 are fixedly connected, an air inlet 104 is opened on the end surface of the rear shell 1, a heat dissipation mechanism 2 is arranged in the air inlet 104, and the heat dissipation mechanism 2 is used to dissipate the heat of the bulb 101, a defogger mechanism 3 is arranged in the lampshade 102, and the defogger mechanism 3 includes a heating cover 301 fixedly connected to the rear end of the lampshade 102, a ceramic heating plate 302 is fixedly connected in the heating cover 301, and a plurality of ceramic heating plates 302 are arranged, a connecting hole 303 is opened on the rear end surface of the lampshade 102, and the connecting hole 303 corresponds to the position of the heating cover 301, and an air expansion mechanism 4 is arranged in the connecting hole 303, and an exhaust port 5 is opened on the front end surface of the lampshade 102, an exhaust pipe 501 is fixedly connected in the exhaust port 5, and the output end of the exhaust pipe 501 is located outside the rear shell 1.

[0027] In actual application, when the vehicle lamp is turned on, the heat dissipation mechanism 2 is controlled to operate, and the outside air is drawn into the rear housing 1 through the air inlet 104, so that the outside air blows around the bulb 101, taking away the heat emitted by the bulb 101 when it is working, and the temperature of the air after passing around the bulb 101 will increase. At this time, the hot air will enter the space between the lampshade 102 and the lens 103 through the heating cover 301 and the connecting hole 303, and then the hot air will be discharged to the outside through the exhaust port 5 and the exhaust pipe 501, and the bulb 1 While dissipating heat, hot air can flow into the space inside the lens 103, making it less likely to fog up. The probability of fogging of the lens 103 is reduced. When fogging occurs on the inner surface of the lens 103, the air can be preheated. At this time, the ceramic heating plate 302 in the heating cover 301 can be turned on to quickly increase the temperature of the hot air passing through the heating cover 301. The temperature of the air entering the lens 103 area is relatively high, and the high-temperature air is blown toward the lens 103, thereby quickly evaporating the fog on the surface of the lens 103.

[0028] like Figure 1-5As shown, as a preferred embodiment of the present invention, the heat dissipation mechanism 2 includes a mounting base 201 and a dustproof net 202 fixedly connected in the air inlet 104, a motor 203 is fixedly connected in the mounting base 201, a rotating shaft 204 is fixedly connected to the output end of the motor 203, a fan blade 205 is fixedly connected to the circumferential surface of the rotating shaft 204, a heat sink 206 is arranged in the bulb 101, the fan blade 205 is opposite to the heat sink 206, and the dustproof net 202 is located behind the motor 203.

[0029] When the embodiment of the present invention is actually used, by controlling the operation of the motor 203, the motor 203 will drive the rotating shaft 204 to rotate, and the rotating shaft 204 will drive the fan blades 205 to rotate, so that the outside air enters the rear shell 1, and the flowing air takes away the heat of the heat sink 206 on the bulb 101, thereby completing the heat dissipation of the bulb 101. At the same time, through the action of the dustproof net 202, the dust in the outside air is isolated to prevent the dust from entering the rear shell 1.

[0030] like Figure 6 and 7 As shown, as another preferred embodiment of the present invention, the front end of the lampshade 102 is fixedly connected with a humidity sensor 6 , and the rear end of the lampshade 102 is fixedly connected with a controller 601 , and the controller 601 is used to control the opening and closing of the ceramic heating plate 302 .

[0031] When the embodiment of the present invention is actually applied, the humidity in the space between the lampshade 102 and the lens 103 can be sensed by the humidity sensor 6, and then whether water mist appears on the surface of the lens 103. When water mist appears on the surface of the lens 103, the humidity sensor 6 will send a signal to the controller 601, and the controller 601 will control the ceramic heating plate 302 to turn on, thereby achieving the effect of controlling the operation of the defogger mechanism 3. In addition, the humidity sensor 6 can timely sense the humidity change, so as to avoid a large amount of water mist on the lens 103, and defogger can be performed before the water mist affects the lighting of the car.

[0032] like Figure 6-8 As shown, as another preferred embodiment of the present invention, the air expansion mechanism 4 includes a plurality of first rotating rods 401 and a plurality of second rotating rods 402 rotatably connected in the connecting hole 303, longitudinal air guide vanes 403 are fixedly connected between the first rotating rods 401, and transverse air guide vanes 404 are fixedly connected between the second rotating rods 402.

[0033] In actual application of the embodiment of the present invention, when the defogger mechanism 3 is in operation, the longitudinal air guide vanes 403 and the transverse air guide vanes 404 can be used to guide the air passing through the connecting hole 303 and control the flow direction of the air. The reciprocating rotation of the first rotating rod 401 and the second rotating rod 402 can drive and control the longitudinal air guide vanes 403 and the transverse air guide vanes 404 to swing symmetrically left and right, so that the air blown out through the connecting hole 303 is blown onto the surface of the lens 103 in the form of reciprocating diffusion, which can increase the area where the high-temperature air is blown out, so that the area of ​​the lens 103 exposed to the hot wind is uniform, thereby improving the defogger efficiency of the lens 103.

[0034] like Figure 7 and 8 As shown, as another preferred embodiment of the present invention, the first rotating rod 401 is fixedly connected to the first gear 405 on the circumferential surface, the second rotating rod 402 is fixedly connected to the second gear 406 on the circumferential surface, the rear end surface of the lampshade 102 is provided with a first mounting groove 407 and a second mounting groove 408, the first mounting groove 407 and the second mounting groove 408 are both fixedly connected with a sliding rod 409, the sliding rod 409 is slidably connected to a pair of racks 4010 on the circumferential surface, the rack 4010 in the first mounting groove 407 is meshed with the first gear 405, and the rack 4010 in the second mounting groove 408 is meshed with the second gear 406.

[0035] When the embodiment of the present invention is actually used, the rack 4010 is controlled to slide back and forth on the circumferential surface of the slide rod 409, thereby driving the first gear 405 and the second gear 406 to rotate back and forth, and then driving the first rotating rod 401 and the second rotating rod 402 to rotate back and forth in the lampshade 102, thereby achieving the effect of driving and controlling the longitudinal air guide vane 403 and the transverse air guide vane 404 to swing back and forth, so that the air blown out through the connecting hole 303 is blown out in the form of reciprocating diffusion.

[0036] like Figure 7 and 8 As shown, as another preferred embodiment of the present invention, the rear end of the lampshade 102 is fixedly connected with two sets of rotating seats 7, the rotating seats 7 are respectively rotatably connected with the first connecting shaft 701 and the second connecting shaft 702, the circumferential surfaces of the first connecting shaft 701 and the second connecting shaft 702 are fixedly connected with cams 703, the rear ends of the rack 4010 are fixedly connected with drive rods 704, the cams 703 are fitted with the drive rods 704, and a spring 705 is fixedly connected between the rack 4010 and the lampshade 102.

[0037] When the embodiment of the present invention is actually used, by controlling the first connecting shaft 701 and the second connecting shaft 702 to rotate simultaneously, the first connecting shaft 701 and the second connecting shaft 702 will drive the cam 703 to rotate, and when the cam 703 rotates, it will push the driving rod 704 to move to both sides, and the driving rod 704 will drive the rack 4010 to move to both sides. At the same time, the spring 705 pushes the rack 4010 to reset, thereby achieving the effect of driving the rack 4010 to slide back and forth.

[0038] like Figure 7 and 8 As shown, as another preferred embodiment of the present invention, the rear end of the lampshade 102 is fixedly connected to a motor 706, the output end of the motor 706 is fixedly connected to a drive shaft 707, the circumferential surface of the drive shaft 707 is fixedly connected to a first sprocket 708 and a first bevel gear 709, the circumferential surface of the first connecting shaft 701 is fixedly connected to a second bevel gear 7010, the circumferential surface of the second connecting shaft 702 is fixedly connected to a second sprocket 7011, the first bevel gear 709 is meshed with the second bevel gear 7010, and the first sprocket 708 and the second sprocket 7011 are connected by a chain.

[0039] When the embodiment of the present invention is actually applied, by controlling the operation of the motor 706, the motor 706 will drive the driving shaft 707 to rotate, and the driving shaft 707 will drive the first sprocket 708 and the first bevel gear 709 to rotate. The first bevel gear 709 will drive the first connecting shaft 701 to rotate under the action of the second bevel gear 7010, and the first sprocket 708 will drive the second connecting shaft 702 to rotate under the action of the second sprocket 7011 and the chain, thereby achieving the effect of driving the first connecting shaft 701 and the second connecting shaft 702 to rotate at the same time.

[0040] like Figure 7 and 8 As shown, as another preferred embodiment of the present invention, the motor 706 is connected to the controller 601 via wires, and the motor 706 and the ceramic heating plate 302 are turned on and off synchronously.

[0041] In actual application of the embodiment of the present invention, when the controller 601 controls the ceramic heating plate 302 to turn on, it will also transmit a signal to control the operation of the motor 706, so that when the high-temperature air is blown out of the connecting hole 303, the air expansion mechanism 4 is turned on at the same time, so that the hot air can be diffused, thereby avoiding the high-temperature air from being blown continuously at one point.

[0042] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0043] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0044] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-fogging vehicle lamp, comprising a rear housing (1), characterized in that: A light bulb (101), a lampshade (102) and a lens (103) are fixedly connected in the rear shell (1); an air inlet (104) is provided on the end surface of the rear shell (1); a heat dissipation mechanism (2) is arranged in the air inlet (104); the heat dissipation mechanism (2) is used to dissipate heat from the light bulb (101); a defogger mechanism (3) is arranged in the lampshade (102); the defogger mechanism (3) comprises a heating cover (301) fixedly connected to the rear end of the lampshade (102); a heating cover (301) is fixedly connected to the rear end of the lampshade (102); A ceramic heating plate (302) is fixedly connected thereto, and a plurality of the ceramic heating plates (302) are provided. A connecting hole (303) is provided on the rear end surface of the lampshade (102), and the connecting hole (303) corresponds to the position of the heating cover (301). An air expansion mechanism (4) is provided in the connecting hole (303). An exhaust port (5) is provided on the front end surface of the lampshade (102), and an exhaust pipe (501) is fixedly connected thereto. The output end of the exhaust pipe (501) is located outside the rear shell (1).

2. The anti-fogging vehicle lamp according to claim 1, characterized in that: The heat dissipation mechanism (2) comprises a mounting seat (201) and a dust screen (202) fixedly connected in the air inlet (104); a motor (203) is fixedly connected in the mounting seat (201); a rotating shaft (204) is fixedly connected to the output end of the motor (203); a fan blade (205) is fixedly connected to the circumferential surface of the rotating shaft (204); a heat sink (206) is arranged in the light bulb (101); the fan blade (205) is directly opposite to the heat sink (206); and the dust screen (202) is located behind the motor (203).

3. The anti-fogging vehicle lamp according to claim 1, characterized in that: The front end of the lampshade (102) is fixedly connected to a humidity sensor (6), and the rear end of the lampshade (102) is fixedly connected to a controller (601), and the controller (601) is used to control the opening and closing of the ceramic heating plate (302).

4. The anti-fogging vehicle lamp according to claim 1, characterized in that: The air expansion mechanism (4) comprises a plurality of first rotating rods (401) and a plurality of second rotating rods (402) rotatably connected in the connecting hole (303), longitudinal air guide vanes (403) being fixedly connected between the first rotating rods (401), and transverse air guide vanes (404) being fixedly connected between the second rotating rods (402).

5. The anti-fogging vehicle lamp according to claim 4, characterized in that: The first rotating rod (401) is fixedly connected to a first gear (405) on its circumferential surface, and the second rotating rod (402) is fixedly connected to a second gear (406) on its circumferential surface. The lampshade (102) is provided with a first mounting groove (407) and a second mounting groove (408) on its rear end surface. A sliding rod (409) is fixedly connected to each of the first mounting groove (407) and the second mounting groove (408). A pair of racks (4010) are slidably connected to the circumferential surface of the sliding rod (409). The rack (4010) in the first mounting groove (407) is meshed with the first gear (405), and the rack (4010) in the second mounting groove (408) is meshed with the second gear (406).

6. The anti-fogging vehicle lamp according to claim 5, characterized in that: The rear end of the lampshade (102) is fixedly connected to two groups of rotating seats (7), and the rotating seats (7) are respectively rotatably connected to a first connecting shaft (701) and a second connecting shaft (702), and the circumferential surfaces of the first connecting shaft (701) and the second connecting shaft (702) are fixedly connected to a cam (703), and the rear end of the rack (4010) is fixedly connected to a driving rod (704), and the cam (703) is fitted with the driving rod (704), and a spring (705) is fixedly connected between the rack (4010) and the lampshade (102).

7. The anti-fogging vehicle lamp according to claim 6, characterized in that: The rear end of the lampshade (102) is fixedly connected to a motor (706), the output end of the motor (706) is fixedly connected to a drive shaft (707), the circumferential surface of the drive shaft (707) is fixedly connected to a first sprocket (708) and a first bevel gear (709), the circumferential surface of the first connecting shaft (701) is fixedly connected to a second bevel gear (7010), the circumferential surface of the second connecting shaft (702) is fixedly connected to a second sprocket (7011), the first bevel gear (709) is meshed with the second bevel gear (7010), and the first sprocket (708) and the second sprocket (7011) are connected via a chain.

8. The anti-fogging vehicle lamp according to claim 7, characterized in that: The motor (706) and the controller (601) are connected via electric wires, and the motor (706) and the ceramic heating plate (302) are turned on and off synchronously.

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