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CN-122015033-A - Automobile lamp and demisting device thereof

CN122015033ACN 122015033 ACN122015033 ACN 122015033ACN-122015033-A

Abstract

The application relates to the field of automobile lamps, and provides an automobile lamp and a demisting device thereof, the defogging device of car light is including setting up in heating module, defogging portion of inner space and setting up the discharging device in the discharge through-hole. The demisting part comprises a Peltier device and a liquid collecting device, the Peltier device is hermetically embedded in the mounting through hole and comprises a cold end and a hot end, the cold end stretches into the inner space, the hot end is located in the outer space, and the liquid collecting device is arranged in the inner space and is located near the cold end of the Peltier device. One end of the discharging device is communicated with the liquid collecting device, and the discharging device is used for discharging liquid to the external space. The heating module evaporates the mist into water vapor, the cold end liquefies the water vapor into liquid through cooling, and then the liquid collecting device collects the liquid, so that the discharging device can discharge the liquid to an external space. The demisting device provided by the application can rapidly demist and rapidly discharge internal water vapor to the external space.

Inventors

  • CHEN YU
  • MAO TINGTING

Assignees

  • 浙江宏冠科技股份有限公司

Dates

Publication Date
20260512
Application Date
20260409

Claims (10)

  1. 1. The utility model provides a defogging device of car light, its characterized in that, set up discharge through-hole and installation through-hole on the car light, the inner space of car light is respectively through discharge through-hole with the installation through-hole is linked together with the outer space, the defogging device of car light includes: The heating module is arranged on the inner side wall of the inner space; A demisting part comprising a Peltier device and a liquid collecting device, wherein the Peltier device is hermetically embedded in the mounting through hole and comprises a cold end and a hot end, the cold end stretches into the inner space, the hot end is positioned in the outer space, the liquid collecting device is arranged in the inner space and is positioned near the cold end of the Peltier device, and A discharge device arranged in the discharge through hole, one end of the discharge device being communicated with the liquid collecting device, and the discharge device being used for discharging liquid to an external space; The cold end is cooled to liquefy the vapor at the cold end to form liquid, and the liquid collecting device collects the liquid, so that the discharging device can discharge the liquid to the external space.
  2. 2. The defogging device for an automotive lamp of claim 1, wherein said peltier device further comprises a condensing housing, said condensing housing being disposed over said cold end, said liquid collection device comprising: the collecting piece is movably arranged on the condensing shell and is provided with two collecting spaces, one collecting space is arranged on one side of the collecting piece, which is close to the mounting through hole, the other collecting space is arranged on one side of the collecting piece, which is far away from the mounting through hole, the collecting piece is used for collecting liquid on the condensing shell, and The device comprises a collecting piece, a discharging device, a flow guiding device and a flow guiding device, wherein one end of the flow guiding device is connected with the collecting piece, the other end of the flow guiding device is connected with the discharging device, two flow guiding channels are formed in the flow guiding device, and the two flow guiding channels are used for respectively communicating the two collecting spaces with the discharging device; The collecting piece is used for collecting liquid on the condensing shell into the two collecting spaces under the condition that the automobile accelerates or decelerates, so that the liquid in the two collecting spaces enters the discharging device through the two diversion channels of the diversion device.
  3. 3. The defogging device for an automotive lamp as recited in claim 2, wherein said discharging means comprises: A discharge main body arranged in the automobile lamp and positioned at the discharge through hole, the discharge main body is provided with a liquid collecting space and a discharge hole communicated with the liquid collecting space, the liquid collecting space is communicated with the outlet of the flow guiding device, and The one-way valve is arranged in the discharge through hole and is connected with the discharge hole; The liquid collecting space is used for collecting liquid flowing in from the flow guiding device, when the liquid is accumulated to a certain amount, the liquid flows into the one-way valve through the discharge hole and overcomes the opening pressure of the one-way valve, so that the one-way valve is opened and the liquid is discharged to the external space.
  4. 4. A defogging device for an automotive lamp as recited in claim 3, wherein said liquid collection device further comprises: a collecting engagement rod provided on the discharge body and located in the liquid collecting space, and The collecting matching piece is movably arranged on the collecting matching rod and is connected with the flow guiding device; Wherein the collecting fitting piece and the collecting fitting rod are used for limiting the movement direction of the flow guiding device so that the flow guiding device can only move along the axial direction of the collecting fitting rod.
  5. 5. The demisting device for an automobile lamp according to claim 1, wherein the automobile lamp is further provided with a suction through hole, the inner space and the outer space are communicated through the suction through hole, the demisting device further comprises a heat dissipation part, the heat dissipation part is arranged on the outer side wall of the automobile lamp, an air outlet of the heat dissipation part faces the hot end, and the air outlet of the heat dissipation part can blow hot air to the suction through hole, so that water vapor in air entering the inner space is reduced.
  6. 6. The defogging device for an automotive lamp of claim 1, further comprising: A recognition part arranged on the inner side wall of the automobile lamp and used for recognizing whether the inner space generates fog or not, and A control part arranged on the automobile and electrically connected with the identification part, the Peltier device and the heating module; The control part is firstly used for controlling the heating module to work under the condition that the identification part identifies that the fog exists in the inner space, so that the fog in the inner space is evaporated into water vapor, the content of the fog is reduced to a preset range, and then is used for controlling the Peltier device to work under the condition that the identification part identifies that the fog exists in the inner space is reduced to the preset range, so that the defogging device can work normally.
  7. 7. The defogging device for an automotive lamp as recited in claim 2, wherein said condensing housing comprises: the condensing main body is sleeved on the cold end and is shaped like a cylinder, the collecting piece is movably arranged on the condensing main body, and And the two propping pieces are respectively arranged at two ends of the condensation main body and are used for limiting the moving range of the collecting piece.
  8. 8. The demisting apparatus for an automotive lamp according to claim 7, wherein the condensation housing further comprises two heat insulators, and two heat insulators are disposed between the condensation body and two of the stoppers.
  9. 9. The demister for an automotive lamp according to claim 7, wherein the liquid collecting device further comprises a rubber member disposed between the collecting member and the condensing body.
  10. 10. An automotive lamp, characterized in that it comprises: The automobile lamp comprises an automobile lamp shell, wherein the automobile lamp shell is provided with a discharge through hole, a mounting through hole and a suction through hole; the car light lamp shade is detachably arranged on the car light shell, and the car light lamp shade and the car light shell form the inner space; A defogging device for an automobile lamp according to any of claims 1 to 9.

Description

Automobile lamp and demisting device thereof Technical Field The application relates to the technical field of automobile lamps, in particular to an automobile lamp and a demisting device thereof. Background The light transmission performance of the automobile lamp, which is used as an important lighting and signal device of the automobile, directly influences the driving safety. Modern car lamps (especially LED lamps) generally adopt a fully-closed or semi-closed structure so as to realize good sealing, waterproof and dustproof effects. However, in a use environment with a large day and night temperature difference and high air humidity, vapor contained in the air inside the car lamp is easy to condense on the inner wall of the lamp shade, so that mist or water drops are formed. The fog phenomenon can obviously reduce the light transmittance of the car lamp, weaken the illumination intensity and scatter light, not only influence the beauty of the car lamp, but also form potential threat to the traffic safety at night or in severe weather. At present, common solutions for defogging of car lamps in the industry are mainly divided into a passive type and an active type. The passive mode is usually to set up bleeder vent or respirator on car light casing, through the inside and outside pressure of air exchange and humidity, but its defogging effect is slow, and probably introduces more steam when external humidity is high, can't realize quick, thorough defogging. In addition, the simple ventilation holes can reduce the sealing grade of the car lamp, and the car lamp is easy to fail due to dust and dirt blockage after long-term use. In the active mode, heating measures are usually adopted, for example, heating wires are arranged on the inner wall of a lampshade or PTC heating elements are adopted, and mist is promoted to evaporate by increasing the temperature in the lamp. However, the method can only re-evaporate the water vapor into a gaseous state, and does not really discharge the water vapor outside the car lamp, once the temperature is reduced, the water vapor can still be condensed again, and the symptoms and the root causes are treated. Meanwhile, the continuous heating also brings additional energy consumption, and can influence the heat dissipation and the service life of the peripheral components of the car lamp. Disclosure of Invention The embodiment of the application provides an automobile lamp and a demisting device thereof, which can solve the technical problem that the automobile lamp in the related art cannot rapidly discharge internal water vapor in the process of rapid demisting. In a first aspect, an embodiment of the present application provides a demisting device, where a discharge through hole and an installation through hole are formed in an automobile lamp, and an inner space of the automobile lamp is respectively communicated with an outer space through the discharge through hole and the installation through hole, and the demisting device for the automobile lamp includes: The heating module is arranged on the inner side wall of the inner space; A demisting part comprising a Peltier device and a liquid collecting device, wherein the Peltier device is hermetically embedded in the mounting through hole and comprises a cold end and a hot end, the cold end stretches into the inner space, the hot end is positioned in the outer space, the liquid collecting device is arranged in the inner space and is positioned near the cold end of the Peltier device, and A discharge device arranged in the discharge through hole, one end of the discharge device being communicated with the liquid collecting device, and the discharge device being used for discharging liquid to an external space; The cold end is cooled to liquefy the vapor at the cold end to form liquid, and the liquid collecting device collects the liquid, so that the discharging device can discharge the liquid to the external space. The technical scheme provided by the embodiment of the application at least has the following technical effects: According to the demisting device for the automobile lamp, provided by the embodiment of the application, the heating module is arranged to accelerate the increase of the temperature of the inner space of the automobile lamp, so that the mist in the interior of the automobile lamp is vaporized to form water vapor, and the scheme can accelerate the generation of the water vapor by the mist, so that the influence time of the mist on the lighting function of the automobile lamp is reduced. The cold end of the Peltier device is arranged in the inner space of the automobile lamp, so that generated water vapor can be concentrated on the cold end of the Peltier device to be liquefied to form liquid, and the water content of air in the automobile lamp is reduced. The scheme can avoid that water vapor forms water mist in the automobile lamp again, and further improves driving safety. The hot end of the Peltier d