Anti-fogging device, combined lamp and vehicle

Abstract

The invention provides an anti-fogging device, a combined lamp and a vehicle, and belongs to the technical field of vehicles, the anti-fogging device comprises a refrigerant tank storing a refrigerant medium, a condenser used for cooling and a drainage pipe used for discharging water drops condensed on the condenser; the condenser is connected with the refrigerant tank through a conveying pipe and receives refrigerant media in the refrigerant tank. The drain pipe is connected with the condenser. According to the anti-fogging device provided by the invention, a refrigerant medium in the refrigerant tank enters the condenser through the transmission pipe, so that a temperature difference is formed between the condenser and the surrounding environment, moisture in the external environment exchanges heat with the condenser and is condensed on the outer wall of the condenser to form water drops, and the water drops are converged to the water drainage pipe along the outer wall of the condenser under the action of gravity; discharging through a drainage pipe. According to the condenser, the siphonic effect is formed, moisture in the environment is condensed into water drops, the moisture in the surrounding environment of the condenser can be reduced or improved, and the anti-fogging effect is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of vehicles, and in particular relates to an anti-fogging device, a combination lamp and a vehicle. Background Art

[0002] At present, the front combination lamps and rear combination lamps of vehicles have poor sealing due to factors such as manufacturing errors and installation errors in the production and assembly process. As a result, during the use of the vehicle, due to the influence of high humidity in the use environment, water accumulates inside the lamp or water mist forms on the lampshade.

[0003] When fog forms inside the combination lamp, it will affect the normal light transmittance of the lamp and may even cause the direction of the lamp beam to shift, resulting in astigmatism. The scattered light is not focused and has no penetration, making it impossible for the driver to see the road clearly, affecting driving safety. In severe cases, it may cause a short circuit in the lamp circuit, leading to a fire and a safety accident. Water mist may form on the lampshade or water may accumulate inside, affecting the exquisite appearance of the entire vehicle. Summary of the invention

[0004] The embodiments of the present invention provide an anti-fogging device, a combination lamp and a vehicle, aiming to solve the problems of driving safety, line safety and appearance quality caused by fogging in the combination lamp of the vehicle.

[0005] In the first aspect, in order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide an anti-fogging device, comprising:

[0006] A refrigerant tank storing a refrigerant medium;

[0007] a condenser connected to the refrigerant tank via a transmission pipe, the condenser receiving the refrigerant in the refrigerant tank; and

[0008] A drain pipe is connected to the condenser to drain water droplets condensed in the condenser.

[0009] In combination with the first aspect, in a feasible manner, it also includes a water reservoir, which is arranged around the lower end or outer side of the condenser to collect water droplets condensed on the condenser; the drain pipe is connected to the lowest point of the water reservoir; and the condenser is also provided with a discharge port for discharging the cold medium absorbed and condensed.

[0010] In combination with the first aspect, in one achievable manner, the water storage tank is disposed around the outer periphery of the discharge port so that the cold medium condensed by the condenser after absorbing heat is discharged from the drain pipe together with water droplets.

[0011] In combination with the first aspect, in one achievable manner, the lower end of the condenser has a guide cone in the shape of an inverted cone; the water storage tank is arranged outside the guide cone, and its shape is adapted to the shape of the guide cone.

[0012] In combination with the first aspect, in one achievable manner, the refrigerant tank is a double-layer steel part; and the condenser is a metal part.

[0013] In combination with the first aspect, in one achievable manner, the cross-sectional shape of the condenser is a polygon.

[0014] Compared with the prior art, the anti-fogging device provided by the present invention has the following beneficial effects: the refrigerant medium in the refrigerant tank enters the condenser through the transmission pipe, so that a temperature difference is formed between the condenser and the surrounding environment, and the moisture in the external environment exchanges heat with the condenser and condenses on the outer wall of the condenser to form water droplets, which gather along the outer wall of the condenser to the drain pipe under the action of gravity and are discharged through the drain pipe. The condenser of this embodiment forms a siphon effect, condenses the moisture in the environment into water droplets, can reduce or improve the moisture in the environment around the condenser, and has an anti-fogging effect.

[0015] In a second aspect, an embodiment of the present invention further provides a combination lamp, comprising:

[0016] a housing; and

[0017] The anti-fogging device;

[0018] The condenser in the anti-fogging device is arranged inside the shell; the refrigerant tank in the anti-fogging device is arranged outside the shell; the drain pipe part in the anti-fogging device extends out of the shell.

[0019] In combination with the second aspect, in one feasible method, the outer side of the shell is provided with a clamping groove that can tightly fit the refrigerant tank, and the refrigerant tank is clamped on the clamping groove; the inner side of the shell is provided with a clamp that can be plugged into the condenser, and the outer wall of the condenser is provided with a limit block that can be supported by the clamp.

[0020] In combination with the second aspect, in one feasible manner, the upper edge of the snap-in groove is provided with a guide flange for facilitating the insertion of the refrigerant tank, and the guide flange is bent and extended around the outside of the snap-in groove so that the upper end of the snap-in groove forms a trumpet shape.

[0021] The combination lamp provided in the embodiment of the present invention has such an anti-fogging device arranged on the shell, and the refrigerant medium transmission pipe in the refrigerant tank is input into the condenser inside the shell, and the condenser forms a low-temperature environment inside the shell. When the humidity in the combination lamp is relatively high, water vapor exchanges heat with the condenser to form water droplets that condense on the condenser, and then flow down along the condenser under gravity and are discharged to the outside of the shell through the drain pipe, thereby reducing, improving or eliminating the problem of condensed water mist on the combination lamp mask, avoiding driving safety problems caused by poor light transmittance due to water mist covering the mask, and the driver's inability to see the road clearly, as well as fire safety problems caused by short circuit of the line due to the humid environment in the shell, and also avoiding the problem of the refined appearance of the combination lamp being affected by the water mist formed on the mask.

[0022] In a third aspect, an embodiment of the present invention further provides a vehicle provided with the above-mentioned combination lamp.

[0023] The vehicle provided by the embodiment of the present invention improves driving safety, reduces safety hazards caused by line failures, and improves the appearance quality of the entire vehicle because the combination lamp with the anti-fogging device is adopted. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of the three-dimensional structure of the anti-fogging device provided in an embodiment of the present invention Figure 1 ;

[0025] Figure 2 Schematic diagram of the three-dimensional structure of the anti-fogging device provided in an embodiment of the present invention Figure 2 ;

[0026] Figure 3 A schematic structural diagram of a housing of a combination lamp provided by an embodiment of the present invention (external view);

[0027] Figure 4 A schematic structural diagram of a housing of a combination lamp provided by an embodiment of the present invention (interior view);

[0028] Description of reference numerals:

[0029] 1. Refrigerant tank; 11. Regulating valve; 2. Snap-in groove; 21. Guide flange; 3. Transmission pipe; 4. Condenser; 5. Clamp; 51. Connecting column; 6. Water storage tank; 7. Drain pipe; 8. Drain valve; 9. Shell. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] Please also read Figure 1 and Figure 2 The anti-fogging device provided by the present invention is now described. The anti-fogging device comprises: a refrigerant tank 1 storing a refrigerant, a condenser 4 for cooling and lowering the temperature, and a drain pipe 7 for discharging water droplets condensed on the condenser 4; the condenser 4 is connected to the refrigerant tank 1 through a transmission pipe 3, and the condenser 4 receives the refrigerant in the refrigerant tank 1; the drain pipe 7 is connected to the condenser 4.

[0032] In the anti-fogging device provided by the present invention, the refrigerant medium in the refrigerant tank 1 enters the condenser 4 through the transmission pipe 3, so that a temperature difference is formed between the condenser 4 and the surrounding environment, and the moisture in the external environment exchanges heat with the condenser 4 and condenses on the outer wall of the condenser 4 to form water droplets. Under the action of gravity, the water droplets gather along the outer wall of the condenser 4 to the drain pipe 7 and are discharged through the drain pipe 7. The condenser 4 of this embodiment forms a siphon effect, condenses the moisture in the environment into water droplets, can reduce or improve the moisture in the environment around the condenser 4, and has an anti-fogging effect.

[0033] The main conditions for water vapor to condense into water droplets are: first, air humidity. When the air humidity in the combination lamp environment exceeds 70%, it is possible to condense into water vapor when conditions permit; second, temperature difference. After water vapor (fog) is generated, it will only form water droplets on the surface of components with a large temperature difference and low temperature, which is the main reason for the formation of water droplets on the inner surface of the combination lamp mask that is often encountered.

[0034] The present invention is based on the principle that water vapor condenses when it is cooled, and utilizes heat conduction between a refrigerant tank 1 (the refrigerant temperature is between -20 and -196°C) containing a refrigerant and a condenser 4 (the use temperature can be determined by adjusting the compression amount of the refrigerant according to usage requirements, and the temperature is generally recommended to be controlled at -20 to -5°C for civilian use according to the usage season) to keep its surface temperature below 0°C at all times, ensuring that when water vapor in the combination lamp condenses, it is first condensed on the surface of the condenser 4.

[0035] The refrigerant may be liquid nitrogen, liquid ammonia, methane, etc., and may be selected according to the performance of the refrigerant, the applicable environment, etc.

[0036] The anti-fogging device provided by the present invention is as follows: Figure 1 and Figure 2 As shown, the condenser 4 further includes a water reservoir 6, which is arranged around the lower end or outside of the condenser 4 to collect water drops condensed on the condenser 4; a drain pipe 7 is connected to the lowest point of the water reservoir 6; and a discharge port for the refrigerant medium that absorbs heat and condenses is also provided on the condenser 4. The water reservoir 6 can collect water drops that flow down along the outer wall of the condenser 4 under the action of gravity to avoid the formation of accumulated water after the water drops converge, and the accumulated water collected by the water reservoir 6 can also be easily discharged from the drain pipe 7.

[0037] Taking liquid nitrogen as a refrigerant medium as an example, a regulating valve 11 and a discharge valve are provided on the refrigerant tank 1. The pressure relief valve can be opened to allow the liquid ammonia in the refrigerant tank 1 to flow into the condenser 4 through the transmission pipe 3; the liquid nitrogen in the condenser 4 reduces the temperature of the outer wall of the condenser 4 and the surrounding environment. The liquid nitrogen absorbs heat and vaporizes when exchanging heat with the moisture around the condenser 4, and can be discharged through the discharge port.

[0038] In some embodiments, Figure 1 and Figure 2 As shown, the water storage 6 is arranged around the outer periphery of the discharge port, so that the refrigerant condensed by the condenser 4 after absorbing heat can be discharged from the drain pipe 7 together with the water droplets. This structural design, on the one hand, the temperature of the refrigerant rises after absorbing heat to form gas, which has a certain positive effect on the discharge of water droplets. On the other hand, the discharge port of the gasified refrigerant is integrated with the drain pipe 7, which also simplifies the structure of the device and reduces the number of components and the occupied space volume.

[0039] Optionally, a drain valve 8 is provided on the drain pipe 7. In dry weather, such as spring, autumn or winter, the drain valve 8 can be closed to prevent external dust from entering the combination lamp through the drain pipe 7 and causing unnecessary pollution in the lamp.

[0040] The drain valve 8 is a one-way valve, which is also called a check valve or a non-return valve, so that the fluid can only flow along the water inlet, but the medium at the water outlet cannot flow back. At the same time, the regulating valve 11 on the refrigerant tank 1 also needs to be closed.

[0041] In some embodiments, Figure 1 and Figure 2 As shown, the lower end of the condenser 4 has an inverted conical guide cone; the water storage 6 is arranged outside the guide cone, and its shape is adapted to the shape of the guide cone. The water droplets condensed on the outer wall of the condenser 4 flow downward under the action of gravity and gather at one point after passing through the guide cone, so as to be discharged through the drain pipe 7.

[0042] In some embodiments, Figure 1 and Figure 2 As shown, the refrigerant tank 1 is a double-layer steel part; the condenser 4 is a metal part. For example, the liquid nitrogen tank uses a double-layer high-pressure liquid nitrogen cylinder (liquid nitrogen temperature is -20 to -196°C); the condenser 4 is an iron or steel part.

[0043] In some embodiments, Figure 1 and Figure 2 As shown, the cross-sectional shape of the condenser 4 is a polygon. The polygonal shape of the condenser 4 can increase the outer surface area of ​​the condenser 4, increase the contact area between the moisture and the condenser 4, increase the speed of heat exchange and condensation, and improve the anti-fog and dehumidification effect.

[0044] For example, the cross-sectional shape of the condenser 4 can be X-shaped, regular quadrilateral, pentagon, etc.

[0045] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0046] Based on the same inventive concept, the embodiment of the present application also provides a combination lamp, such as Figure 3 and Figure 4 As shown, it includes: a shell 9 and an anti-fogging device; the condenser 4 in the anti-fogging device is arranged inside the shell 9; the refrigerant tank 1 in the anti-fogging device is arranged outside the shell 9; and the drain pipe 7 in the anti-fogging device partially extends out of the outside of the shell 9.

[0047] The combination lamp provided in the embodiment of the present invention has such an anti-fogging device arranged on the shell 9, so that the refrigerant medium transmission pipe 3 in the refrigerant tank 1 is input into the condenser 4 inside the shell 9, and the condenser 4 forms a low-temperature environment inside the shell 9. When the humidity inside the combination lamp is relatively high, the water vapor exchanges heat with the condenser 4 to form water droplets condensed on the condenser 4, and then flows down along the condenser 4 under gravity and is discharged to the outside of the shell 9 through the drain pipe 7, thereby reducing, improving or eliminating the problem of condensed water mist on the combination lamp mask, avoiding the driving safety problem caused by the poor light transmittance due to the water mist covering the mask, and the inability of the driver to see the road clearly, as well as the fire safety problem caused by the short circuit of the line due to the humid environment inside the shell 9, and also avoiding the problem of the water mist formed on the mask affecting the exquisite appearance of the combination lamp.

[0048] The transmission pipe passes through the through hole on the shell and enters the interior of the shell, while the drainage pipe needs to be transmitted out of the shell and connected to an external drainage valve, and the drainage valve is arranged outside the shell for easy operation.

[0049] In some embodiments, Figures 1 to 4 As shown, the outer side of the shell 9 is provided with a clamping groove 2 which can tightly fit the refrigerant tank 1, and the refrigerant tank 1 is clamped on the clamping groove 2; the inner side of the shell 9 is provided with a clamp 5 which can be plugged into the condenser 4, and the outer wall of the condenser 4 is provided with a limit block which can be supported by the clamp 5.

[0050] The size of the clamping groove 2 is slightly smaller than the outer size of the refrigerant tank 1, so that the refrigerant tank 1 can be fitted into the clamping groove 2, which improves the convenience of assembling the refrigerant tank 1; and a limit block is provided on the condenser 4, and after the condenser 4 is inserted into the clamp 5, it can be connected with the housing 9 by means of the limit block, which also improves the convenience of assembling the condenser 4. Therefore, the assembly of the anti-fogging device provided in this embodiment on the combination lamp is simple, fast and convenient.

[0051] Among them, the refrigerant tank adopts a double-layer vacuum metal high-pressure tank body, so the cold resistance requirements of the installation structure are not high. The injection molding process is directly adopted, and the shell 9 is formed at one time. The size of the clamping groove 2 is slightly smaller than the diameter of the refrigerant tank 1, which is convenient for clamping firmly. Since the shell 9 is generally an injection molded part, the clamping groove 2 can be injection molded together with the shell 9; since liquid nitrogen can be stored inside the condenser 4, the installation structure has low temperature resistance requirements, so the clamp 5 can be made of inert metal material and connected and fixed by a bracket injection molded on the shell 9. The bracket integrally injected on the shell 9 can be a clamping slot, and the clamp 5 can be clamped on the clamping slot; the bracket can also be a socket, and an extended connecting column 51 is made on the clamp 5, and the connecting column 51 is inserted into the socket, and auxiliary gluing can be used.

[0052] The water storage container 6 can be fixed on the shell 9 by means of friction welding.

[0053] In some embodiments, Figures 1 to 3 As shown, the upper edge of the clamping groove 2 is provided with a guide flange 21 for facilitating the insertion of the refrigerant tank 1. The guide flange 21 is bent and extended around the outside of the clamping groove 2, so that the upper end of the clamping groove 2 forms a bell-mouth shape. Since the size of the clamping groove 2 is slightly smaller than the diameter of the refrigerant tank 1, the bell-mouth formed by the guide flange 21 has the function of guiding the insertion of the refrigerant tank 1 and facilitating the insertion.

[0054] As for the method of preventing fogging in the combination lamp, a desiccant (calcium chloride) can also be placed inside the housing 9 to absorb moisture and then be discharged with the moisture. However, the desiccant needs to be added from time to time, and it is corrosive to the vehicle body.

[0055] Based on the same inventive concept, an embodiment of the present invention further provides a vehicle provided with the above-mentioned combination lamp.

[0056] The vehicle provided by the embodiment of the present invention improves driving safety, reduces safety hazards caused by line failures, and improves the appearance quality of the entire vehicle because the combination lamp with the anti-fogging device is adopted.

[0057] It should be noted that the anti-fogging device provided by the present invention can be applied to all exterior lamps of the vehicle, including front combination lamps and rear combination lamps, and can also be extended to all vehicle models, including sedans, SUVs, MPVs, pickup trucks and other models, and has strong applicability.

[0058] The full name of SUV is sport utility vehicle, or suburban utility vehicle, which means sports multi-purpose vehicle or suburban multi-purpose vehicle.

[0059] MPV (multi-Purpose Vehicles), multi-purpose vehicles, evolved from station wagons. It combines the spacious passenger space of station wagons, the comfort of sedans, and the functions of vans. It is generally a two-box structure and can seat 7-8 people.

[0060] 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 and improvements 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 device, It is characterized in that include: A refrigerant tank (1) storing a refrigerant medium; A condenser (4) is connected to the refrigerant tank (1) via a transmission pipe (3), and the condenser (4) receives the refrigerant in the refrigerant tank (1); as well as A drain pipe (7) is connected to the condenser (4) to discharge water droplets condensed in the condenser (4).

2. The anti-fogging device according to claim 1, It is characterized in that It also includes a water reservoir (6), which is arranged around the lower end or outer side of the condenser (4) to collect water droplets condensed on the condenser (4); the drain pipe (7) is connected to the lowest point of the water reservoir (6); and the condenser (4) is also provided with a discharge port for discharging the cold medium absorbed by the condensation.

3. The anti-fogging device according to claim 2, It is characterized in that The water storage container (6) is arranged around the outer periphery of the discharge port so that the cold medium condensed by the condenser (4) after absorbing heat can be discharged from the drain pipe (7) together with water droplets.

4. The anti-fogging device according to claim 2, It is characterized in that The lower end of the condenser (4) has a guide cone in the shape of an inverted cone; the water storage container (6) is arranged outside the guide cone, and its shape is adapted to the shape of the guide cone.

5. The anti-fogging device according to claim 1, It is characterized in that The refrigerant tank (1) is a double-layer steel part; the condenser (4) is a metal part.

6. The anti-fogging device according to claim 1, It is characterized in that The cross-sectional shape of the condenser (4) is a polygon.

7. A combination lamp, It is characterized in that include: Housing (9); as well as The anti-fogging device according to any one of claims 1 to 6; The condenser (4) in the anti-fogging device is arranged inside the shell (9); the refrigerant tank (1) in the anti-fogging device is arranged outside the shell (9); and the drain pipe (7) in the anti-fogging device partially extends out of the shell (9).

8. The combination lamp according to claim 7, It is characterized in that The outer side of the shell (9) is provided with a clamping groove (2) which can tightly fit the refrigerant tank (1), and the refrigerant tank (1) is clamped on the clamping groove (2); the inner side of the shell (9) is provided with a clamp (5) which can be plugged into the condenser (4), and the outer wall of the condenser (4) is provided with a limit block which can be supported by the clamp (5).

9. The combination lamp as claimed in claim 8, It is characterized in that The upper edge of the snap-in groove (2) is provided with a guide flange (21) for facilitating the insertion of the refrigerant tank (1); the guide flange (21) is bent and extended around the outside of the snap-in groove (2), so that the upper end of the snap-in groove (2) forms a trumpet shape.

10. A vehicle, It is characterized in that A combination lamp as claimed in any one of claims 7 to 9 is provided.

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