Automobile headlamp facilitating demisting

Abstract

The utility model relates to the technical field of automobile headlamps, and discloses an automobile headlamp convenient for demisting, which comprises a lamp body, a lighting module is fixedly mounted on the inner wall of the back of the lamp body, and an air guide component is arranged in the lamp body. By arranging the air guide assembly, the air pressure in the drainage sleeve is lower than the air pressure in the inner cavity of the lamp body through flowing of external air, so that hot air in the lamp body is brought out from the upper portion, and the air pressure in the inner cavity of the lamp body is reduced after the hot air is exhausted; under the action of atmospheric pressure, the air inlet block drives the air guide block to move upwards along the inner wall of the air inlet groove, so that external air can enter the inner cavity of the lamp body through the air inlet and the air blowing opening, air in the lamp body is supplemented, meanwhile, relatively cold air in the external environment can be brought in, and the air quality of the lamp body is improved. Air temperature balance in the lamp body is maintained, and fogging caused by overlarge temperature difference between the inside and the outside of the lamp body is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile headlamp, concretely to a car headlamp convenient for defogging. BACKGROUND

[0002] The headlamp is also called the front light, which is installed on the two sides of the head of the car and is used for illuminating the road at night. Because there is a temperature difference between the inside and outside of the lamp body, the lamp body is prone to produce fog.

[0003] According to the automobile headlamp anti-fogging structure (announcement number: CN218032967U) disclosed, in the above-mentioned application, the upper air inlet box is arranged to introduce air into the headlamp lamp shell during vehicle driving, and then the air is discharged through the lower air outlet box, so that the air flows in the headlamp lamp shell, the cooling of the headlamp lamp shell is improved, and the fog in the headlamp lamp shell can be effectively removed.

[0004] However, in the actual use process of the above-mentioned device, the inside of the cover of the automobile headlamp continuously introduces air, but the heat generated by the automobile headlamp during work heats the air inside the headlamp, so that the hot air flows upward, and the top air inlet makes the heat in the inside of the headlamp cover unevenly distributed, so that the automobile headlamp may appear fogging after a certain period of time after starting. In view of this, we propose a car headlamp convenient for defogging. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a car headlamp convenient for defogging to solve the problems in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a car headlamp convenient for defogging, comprising a lamp body, a lighting module is fixedly installed on the back inner wall of the lamp body, a wind guide assembly is arranged in the inside of the lamp body, the wind guide assembly comprises:

[0007] A hollow cavity is arranged on the inner wall of the side of the lamp body away from the lighting module, an air outlet is arranged on the top inner wall of the lamp body, a drainage sleeve is fixedly installed on the top outer wall of the lamp body, an air inlet groove is arranged on the bottom inner wall of the lamp body, an air inlet block is slidably installed on the inner wall of the air inlet groove, a magnetic attraction plate is fixedly installed on the side wall of the air inlet block, a magnetic attraction block is fixedly installed on the side inner wall of the air inlet groove, an air inlet is arranged on the bottom inner wall of the air inlet block, and a shunt is arranged on the bottom side wall of the air inlet block and communicates with the air inlet.

[0008] The air guide block is rotationally connected to the top of the air inlet block, an arc-shaped groove is formed in the center of the bottom of the air guide block, an air guide groove is formed in the inner wall of the air guide block, an annular cavity is formed in the inner wall of the air guide block, and an air blowing port is formed in the arc-shaped outer wall of the air guide block.

[0009] Preferably, the air outlet is in the shape of a circular truncated cone with the upper part being narrow and the lower part being wide, the end with the larger inner diameter of the air outlet faces the inside of the lamp body, the air guide sleeve is arranged at the top of the air outlet, and the air guide sleeve is in the shape of an inverted U.

[0010] Preferably, the air inlet block is in the shape of a square, the size of the air inlet groove is adapted to that of the air inlet block, so that the air inlet block can only move in the vertical direction inside the air inlet groove.

[0011] Preferably, a circular groove is formed in the top of the air inlet groove, the circular groove comprises a narrow section and a wide section, the wide section is arranged at the top of the narrow section, the inner diameter of the narrow section is adapted to the outer diameter of the air guide block, and the diameter of the wide section is larger than that of the narrow section.

[0012] Preferably, a partition assembly is arranged inside the hollow cavity, the partition assembly comprises a U-shaped plate, the U-shaped plate is fixedly installed on the inner surface of the hollow cavity, and intercommunication grooves are formed in the side walls of the U-shaped plate.

[0013] Preferably, a plurality of partition assemblies are arranged, and the plurality of partition assemblies are uniformly distributed in the hollow cavity in a linear array, the plurality of U-shaped plates divide the hollow cavity into a plurality of small cavities, and the plurality of small cavities are still connected through the intercommunication grooves.

[0014] Compared with the prior art, the automobile headlamp provided by the utility model has the following beneficial effects:

[0015] 1. The automobile headlamp provided by the utility model has the air guide assembly, the air pressure in the air guide sleeve is lower than the air pressure in the cavity inside the lamp body through the flow of external air, so that the hot air in the lamp body is taken out from the top, at the same time, the air pressure in the cavity inside the lamp body is reduced after the hot air is taken out, the air inlet block drives the air guide block to move upwards along the inner wall of the air inlet groove under the action of atmospheric pressure, so that the air guide block enters the wide section from the narrow section, so that external air can enter the cavity inside the lamp body through the air inlet port and the air blowing port, the air in the cavity inside the lamp body is supplemented, relatively cold air in the external environment is also taken in, the air temperature in the lamp body is balanced, and the situation that the lamp body is fogged due to a large temperature difference between the inside and outside of the lamp body is avoided.

[0016] 2、The convenient defogging automobile headlamp, through the hollow cavity and the air outlet and the shunt port can realize through connection, so that the air inhaled in the air inlet will also have a part into the hollow cavity, thereby the air in the hollow cavity is replaced in proper amount, and the hollow cavity and the air outlet are through, so that an air flow rate is relatively slow cavity is arranged between the external environment and the lamp body internal cavity, and the cavity is filled with air, so that the temperature difference between the lamp body inside and outside forms a buffer zone, further reduces the probability of the lamp body appearing fog, ensures the normal safe use of the automobile headlamp.

[0017] 3、The convenient defogging automobile headlamp, through the hollow cavity is divided into a plurality of small cavities by the separation assembly, and the plurality of small cavities can still realize communication through the intercommunication groove, so that the flow rate of the air in the hollow cavity is reduced to a certain extent, thereby the air exchange efficiency in the hollow cavity is reduced, the fogging in the hollow cavity as the temperature transition zone between the lamp body inside and outside is avoided, the lamp body is ensured not to appear a large amount of fog during use, so that the normal use of the lamp body is affected. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the schematic diagram of the main body structure of the utility model;

[0019] Figure 2 It is the schematic diagram of the utility model cross section structure;

[0020] Figure 3 It is the schematic diagram of the utility model lamp body cross section structure;

[0021] Figure 4 It is the schematic diagram of the utility model air inlet block cross section structure;

[0022] Figure 5 It is the schematic diagram of the utility model air guide block cross section structure.

[0023] In the drawing: 1, lamp body; 2, lighting module; 3, air guide assembly; 31, hollow cavity; 32, air outlet; 33, drainage sleeve; 34, air inlet block; 35, magnetic attraction block; 36, magnetic attraction plate; 37, air inlet; 38, shunt port; 39, air guide block; 310, arc-shaped groove; 311, air guide groove; 312, annular cavity; 313, air outlet; 4, separation assembly; 41, U-shaped plate; 42, intercommunication groove. DETAILED DESCRIPTION

[0024] As Figures 1-5The utility model provides a kind of technical scheme shown: a kind of automobile headlamp of fog is removed easily, including lamp body 1, the back inner wall of lamp body 1 is fixedly installed with lighting module 2, the inside of lamp body 1 is provided with air guide assembly 3, air guide assembly 3 includes hollow cavity 31, gas outlet 32, drainage sleeve 33, air inlet block 34, magnetic attraction plate 36, magnetic attraction block 35, air inlet 37, shunt 38, air guide block 39, arc slot 310, air guide groove 311 and annular cavity 312 and air outlet 313.

[0025] In an embodiment of the utility model, hollow cavity 31 is opened on the inner wall of the side of lamp body 1 away from lighting module 2, gas outlet 32 is opened on the top inner wall of lamp body 1, drainage sleeve 33 is fixedly installed on the top outer wall of lamp body 1, air inlet groove is opened on the bottom inner wall of lamp body 1, air inlet block 34 is slidably installed on the inner wall of air inlet groove, magnetic attraction plate 36 is fixedly installed on the side wall of air inlet block 34, magnetic attraction block 35 is fixedly installed on the side inner wall of air inlet groove, air inlet 37 is opened on the bottom inner wall of air inlet block 34, shunt 38 is opened on the bottom side wall of air inlet block 34 and is communicated with air inlet 37, air guide block 39 is rotatably connected to the top of air inlet block 34, arc slot 310 is opened on the surface of the bottom center of air guide block 39, air guide groove 311 is opened on the inner wall of air guide block 39, annular cavity 312 is opened on the inner wall of air guide block 39, air outlet 313 is opened on the arc outer wall of air guide block 39.

[0026] Further, lighting module 2 penetrates the side wall of lamp body 1, so that lighting module 2 can be connected with the electric socket of the car through the connecting wire, thereby supplying power and controlling lighting module 2, so that it can emit light when turned on to achieve the effect of lighting. At the same time, gas outlet 32 is arranged in the shape of a circular truncated cone with a narrow upper part and a wide lower part. The end of gas outlet 32 with a larger inner diameter faces the inside of lamp body 1. Drainage sleeve 33 is arranged at the top of gas outlet 32 and is arranged in the shape of an inverted U. Therefore, during the driving of the car, the air pressure in drainage sleeve 33 is lower than the air pressure in the cavity inside lamp body 1 due to the high speed of the external airflow. According to Bernoulli's principle, air will move to the side with a faster airflow. Therefore, the air in the cavity inside lamp body 1 will enter drainage sleeve 33 through gas outlet 32 during the driving of the car and be discharged outward along with the airflow. Thus, during the operation of the automobile headlamp, the hot air in lamp body 1 expands upward due to heating and is quickly discharged outward through gas outlet 32 and drainage sleeve 33, so as to ensure that the temperature in lamp body 1 does not become too high, thereby reducing the risk of fogging in lamp body 1.

[0027] In addition, the air inlet groove is arranged directly below the air outlet 32, and the air inlet block 34 is arranged in a square shape, the size of the air inlet groove is matched with that of the air inlet block 34, so that the air inlet block 34 can only move in the vertical direction inside the air inlet groove, and specifically, the top of the air inlet groove is provided with a circular groove, the circular groove comprises a narrow section and a wide section, the wide section is arranged on the top of the narrow section, the inner diameter of the narrow section is matched with the outer diameter of the air guide block 39, and the diameter of the wide section is larger than that of the narrow section; in the initial state, under the action of gravity and the magnetic attraction of the magnetic attraction block 35 and the magnetic attraction plate 36, the outer surface of the air guide block 39 is located inside the narrow section, at this time, external air cannot enter the inside of the lamp body 1 through the air guide block 39, when the car is running, due to the continuous air exhaust at the top air outlet 32, the air pressure in the lamp body 1 gradually decreases, so that the air inlet block 34 drives the air guide block 39 to move upwards along the inner wall of the air inlet groove under the action of the atmospheric pressure, so that the air guide block 39 enters the wide section from the narrow section, so that external air can enter the inside cavity of the lamp body 1 through the air inlet 37 and the air blowing port 313, so as to realize the air supplement in the lamp body 1, and also can bring the relatively cold air in the external environment, maintain the air temperature balance in the lamp body 1, and avoid the fogging due to the large temperature difference between the inside and outside of the lamp body 1.

[0028] Specifically, when the air inlet block 34 moves upwards, the flow dividing port 38 moves to be flush with the hollow cavity 31, so that a part of the air sucked into the air inlet 37 also enters the hollow cavity 31, thereby replacing the air in the hollow cavity 31 in an appropriate amount, and the hollow cavity 31 is communicated with the air outlet 32, so that an air cavity with a relatively slow flow rate is arranged between the external environment and the inside cavity of the lamp body 1, and the cavity is filled with air, so that a buffer zone of temperature difference is formed between the inside and outside of the lamp body 1, further reducing the probability of fogging of the lamp body 1, and ensuring the normal and safe use of the automobile headlamp.

[0029] In the embodiment of the utility model, the inside of the hollow cavity 31 is provided with a separation assembly 4, the separation assembly 4 comprises a U-shaped plate 41, the U-shaped plate 41 is fixedly installed on the inner surface of the hollow cavity 31, and the side wall of the U-shaped plate 41 is provided with an intercommunication groove 42, specifically, the number of the separation assembly 4 is multiple, and the multiple separation assemblies 4 are evenly distributed in the inside of the hollow cavity 31 in linear array, so that the hollow cavity 31 is divided into multiple small cavities by cooperating with the multiple U-shaped plates 41, and the multiple small cavities can still be communicated through the intercommunication groove 42, so that the flow rate of the air in the hollow cavity 31 is reduced to a certain extent, and the air exchange efficiency in the hollow cavity 31 is reduced, so that the fogging in the hollow cavity 31 as the transition zone of the temperature of the inside and outside of the lamp body 1 is avoided, and the lamp body 1 will not appear a large amount of fog during use, so as to affect the normal use of the lamp body 1.

[0030] In the utility model, when using, install the lamp body 1 at the installation position of the automobile headlamp, and carry out electricity with the power supply system of the automobile, thereby realizing the control of the automobile to the headlamp, in the process of automobile driving, through the flow of external air, make the air pressure in the drainage cover 33 relatively lower than the air pressure in the cavity of the lamp body 1, thereby taking out the hot air in the lamp body 1 from the top, at the same time, after the hot air is discharged, the air pressure in the cavity of the lamp body 1 is reduced, under the action of atmospheric pressure, make the air inlet block 34 drive the air guide block 39 move upwards along the inner wall of the air inlet groove, thereby make the air guide block 39 enter from the narrow section into the wide section, so that the external air can enter into the inner cavity of the lamp body 1 through the air inlet 37 and the air outlet 313, thereby realize the replenishment of the air in the lamp body 1, and also can bring the relatively cold air in the external environment, maintain the air temperature balance in the lamp body 1, avoid the fogging condition due to the too large temperature difference between the inside and outside of the lamp body 1.

[0031] The above has made the detailed description to the utility model, but on the basis of the utility model, some modifications or improvements can be made, which is obvious to the general technical personnel in the technical field. Therefore, the modification or improvement without departing from the spirit of the utility model is within the protection scope of the utility model.

Claims

1. A car headlamp with convenient defogging, comprising a lamp body (1), a lighting module (2) is fixedly installed on the inner wall of the back of the lamp body (1), characterized in that: The inside of the lamp body (1) is provided with a wind guide assembly (3), the wind guide assembly (3) comprises: A hollow cavity (31) is arranged on the inner wall of the side of the lamp body (1) away from the lighting module (2), an air outlet (32) is arranged on the top inner wall of the lamp body (1), a drainage sleeve (33) is fixedly installed on the top outer wall of the lamp body (1), an air inlet groove is arranged on the bottom inner wall of the lamp body (1), an air inlet block (34) is slidably installed on the inner wall of the air inlet groove, a magnetic attraction plate (36) is fixedly installed on the side wall of the air inlet block (34), a magnetic attraction block (35) is fixedly installed on the side inner wall of the air inlet groove, an air inlet (37) is arranged on the bottom inner wall of the air inlet block (34), and a shunt (38) penetrating through the air inlet (37) is arranged on the bottom side wall of the air inlet block (34); A wind guide block (39) is rotatably connected to the top of the air inlet block (34), an arc-shaped groove (310) is arranged on the surface of the bottom center of the wind guide block (39), a wind guide groove (311) is arranged on the inner wall of the wind guide block (39), an annular cavity (312) is arranged on the inner wall of the wind guide block (39), and a blowing port (313) is arranged on the arc-shaped outer wall of the wind guide block (39).

2. The automobile headlamp convenient to remove fog according to claim 1, characterized in that: The air outlet (32) is arranged in a circular truncated cone shape with a narrow top and a wide bottom, the end with a larger inner diameter of the air outlet (32) faces the inside of the lamp body (1), the drainage sleeve (33) is arranged at the top of the air outlet (32), and the drainage sleeve (33) is arranged in an inverted U shape.

3. The automobile headlamp convenient to remove fog according to claim 1, characterized in that: The air inlet block (34) is arranged in a square shape, and the size of the air inlet groove is matched with that of the air inlet block (34).

4. The automobile headlamp convenient to remove fog according to claim 1, characterized in that: A circular groove is arranged at the top of the air inlet groove, the circular groove comprises a narrow section and a wide section, the wide section is arranged at the top of the narrow section, the inner diameter of the narrow section is matched with the outer diameter of the wind guide block (39), and the diameter of the wide section is larger than that of the narrow section.

5. The automobile headlamp with convenient defogging according to claim 1, characterized in that: The inside of the hollow cavity (31) is provided with a partition assembly (4), the partition assembly (4) comprises a U-shaped plate (41), the U-shaped plate (41) is fixedly installed on the inner surface of the hollow cavity (31), and an intercommunication groove (42) is arranged on the side wall of the U-shaped plate (41).

6. The automotive headlamp according to claim 5, wherein: A plurality of groups of the partition assembly (4) are arranged in a linear array and uniformly distributed in the inside of the hollow cavity (31), a plurality of small cavities are divided by the plurality of U-shaped plates (41), and the plurality of small cavities are still connected through the intercommunication grooves (42).

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