Anti-fogging hollow fluid injection lampshade

Abstract

The utility model relates to the technical field of vehicle lamps, in particular to an anti-fogging hollow fluid injection lampshade which comprises a lamp shell (1), a lampshade body (2), a temperature sensor (3), a humidity sensor (4), a liquid storage box (5), a heater (6), a circulating pump (7), a pipeline (8), a liquid temperature sensor (9), a light source (10) and a control circuit board (11). The hot liquid flow is injected into the hollow lampshade, the risk of mist generation is reduced, use is convenient, operation is easy, the effect is safe and reliable, and economy and feasibility are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle lamps, in particular to an anti-fogging hollow fluid-filled lampshade. Background Art

[0002] In winter or certain environments, headlights are prone to fogging, affecting lighting performance. Relevant technicians are seeking solutions to prevent fogging. Changzhou Xingyu Automotive Lighting Co., Ltd.'s patent application (201911253412.5) sprays a heatable, transparent, conductive coating containing nano-metal particles and nano-metal wires onto the inner surface of the headlight's lens. This achieves a more uniform temperature distribution on the lens surface and reduces the risk of fogging. While this design eliminates the need for additional anti-fog additives, the cost of spraying the transparent conductive coating is high and the process is complex. Qihong Technology Co., Ltd.'s patent application (201020152920.2) designs an LED headlight structure that is both fog- and water-resistant. The main body of the LED module is connected to a heat sink, and a fan is installed within the enclosed chamber of the headlight assembly. This fan circulates air within the chamber, achieving a more uniform temperature distribution and effectively preventing fogging. However, the use of a fan and heat sink increases the complexity and cost of the headlight structure. Therefore, the existing technology for preventing the generation of fog in the headlights is not yet perfect. Utility Model Content

[0003] In view of the above-mentioned problems, the present invention provides an anti-fogging hollow fluid-filled lampshade to solve the above-mentioned technical problems.

[0004] The technical solution adopted by this utility model is:

[0005] A fogging-proof hollow fluid-filled lampshade, comprising a lamp housing, a lampshade, a temperature sensor, a humidity sensor, a liquid storage box, a heater, a circulation pump, a pipeline, a liquid temperature sensor, a light source and a control circuit board, characterized in that the lampshade is a hollow structure, comprising a hollow cavity and a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet are both arranged on the back of the lampshade in the hollow cavity of the lampshade, the lamp housing and the lampshade are fixed together, the temperature sensor and the humidity sensor are fixed on the lamp housing and / or the lampshade, the liquid storage box, the heater, the circulation pump, the liquid temperature sensor, the light source and the control circuit board are all Fixed on the lamp housing, the liquid storage box is provided with a liquid inlet and a liquid outlet, the heater is provided with two liquid inlets and liquid outlets, the liquid storage box is installed above the heater, and its liquid outlet is connected with one liquid inlet of the heater through a pipeline, the circulating pump is provided with a liquid inlet and a liquid outlet, the heater liquid outlet is connected with the circulating pump liquid inlet through a pipeline, the circulating pump liquid outlet is connected with the lampshade liquid inlet through a pipeline, the lampshade liquid outlet is connected with another liquid inlet of the heater through a pipeline, and the control circuit board is connected with the temperature sensor, humidity sensor, heater, circulating pump and liquid temperature sensor circuit.

[0006] The anti-fogging hollow fluid-filled lampshade is characterized in that it also includes a liquid level control device, which is installed in the inner cavity of the heater, and the liquid inlet of the heater is connected to the liquid level control device.

[0007] The anti-fogging hollow fluid-injected lampshade is characterized in that the circulating fluid injected through the hollow cavity of the lampshade has a refractive index consistent with that of the lampshade.

[0008] The anti-fogging hollow fluid-filled lampshade is characterized in that the temperature sensor and the humidity sensor are fixed on the lamp housing and / or the lampshade in a non-functional area that does not affect the light path.

[0009] The anti-fogging hollow fluid-filled lampshade is characterized in that the liquid storage box, heater, circulation pump, liquid temperature sensor, light source and control circuit board are all fixed on the lamp housing in a non-functional area that does not affect the light path.

[0010] The utility model discloses a novel anti-fogging hollow fluid-injected lampshade, which has a scientific design, a reasonable structure and a simple construction. It reduces the risk of fog generation by injecting a hot liquid flow into the hollow lampshade. It is easy to use, simple to operate, safe and reliable, and economical. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0012] Figure 1 This is a schematic diagram of the anti-fogging hollow fluid-filled lampshade of the utility model;

[0013] In the figure: 1-lamp housing; 2-lampshade; 21-hollow cavity; 3-temperature sensor; 4-humidity sensor; 5-liquid storage box; 6-heater; 7-circulation pump; 8-pipeline; 9-liquid temperature sensor; 10-light source; 11-control circuit board. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solutions and advantages of 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 below are only used to explain the present invention. In these descriptions, key words that need attention, including "hollow cavity" and "non-functional area that does not affect the light path", are only used to facilitate the description of the present invention and simplify the description, and therefore should not be understood as limiting the present invention. Example

[0015] like Figure 1 As shown, the utility model anti-fogging hollow fluid-filled lampshade includes a lamp housing 1, a lampshade 2, a temperature sensor 3, a humidity sensor 4, a liquid storage box 5, a heater 6, a circulation pump 7, a pipe 8, a liquid temperature sensor 9, a light source 10 and a control circuit board 11, characterized in that the lampshade 2 is a hollow structure, which includes a hollow cavity 21 and a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are both arranged on the back of the lampshade 2 at the hollow cavity 21 of the lampshade 2, the lamp housing 1 and the lampshade 2 are fixed together, the temperature sensor 3 and the humidity sensor 4 are fixed on the lamp housing 1 and / or the lampshade 2 in a non-functional area that does not affect the light path, the liquid storage box 5, the heater 6, the circulation pump 7, the liquid temperature sensor 9, the light source 10 and the control circuit board 11 are all It is fixed on the lamp housing 1 in a non-functional area that does not affect the light path. The liquid storage box 5 is provided with a liquid inlet and a liquid outlet, and the liquid is replenished through the liquid inlet of the liquid storage box 5. The heater 6 is provided with two liquid inlets and liquid outlets. The liquid storage box 5 is installed above the heater 6, and its liquid outlet is connected with one liquid inlet of the heater 6 through a pipe 8. The circulating pump 7 is provided with a liquid inlet and a liquid outlet. The liquid outlet of the heater 6 is connected with the liquid inlet of the circulating pump 7 through the pipe 8. The liquid outlet of the circulating pump 7 is connected with the liquid inlet of the lampshade 2 through the pipe 8, and the liquid outlet of the lampshade 2 is connected with another liquid inlet of the heater 6 through the pipe 8. The control circuit board 11 is circuit-connected with the temperature sensor 3, the humidity sensor 4, the heater 6, the circulating pump 7 and the liquid temperature sensor 9.

[0016] The present invention monitors the humidity within the lamp housing 1 via humidity sensor 4. Once the relative humidity in any area is detected to be greater than or equal to 90%, the circuit board 11 controls the circulation pump 7 to start, pushing the hot liquid in the heater 6 into the hollow cavity 21 of the lampshade 2, heating the lampshade 2 and the interior of the lamp housing 1. The liquid then circulates back through the outlet of the lampshade 2, through the pipe 8, and enters the heater 6. When the humidity sensor 4 detects that the relative humidity has dropped to less than or equal to 70%, the lampshade 2 and the interior of the lamp housing 1 are protected from fogging, and the light source 10 provides clear illumination. The circuit board 11 then controls the circulation pump 7 to shut down. Furthermore, when the liquid temperature sensor 9 detects that the liquid in the heater 6 is below a predetermined temperature, the circuit board 11 controls the heater 6 to start heating. When the liquid temperature sensor 9 detects that the liquid temperature is greater than or equal to a predetermined value (98°C in this embodiment), the circuit board 11 controls the heater 6 to shut down heating, thereby ensuring that the circulating heated fluid maintains a constant temperature. Example

[0017] This embodiment is substantially similar to Embodiment 1, except that a liquid level control device is installed at the liquid inlet of heater 6. The liquid level control device is mounted within the inner cavity of heater 6 and communicates with the liquid inlet of heater 6. When the liquid level within the inner cavity of heater 6 falls below a predetermined height, the liquid level control device opens the liquid inlet of heater 6 to replenish liquid from liquid reservoir 5. When the liquid level reaches the predetermined height, the liquid level control device closes. Example

[0018] This embodiment is basically similar to the embodiment 1, except that the refractive index of the circulating liquid (fluid) injected through the cavity 21 of the lampshade 2 is consistent with the refractive index of the lampshade material.

[0019] The above description is merely a general embodiment of the present invention. Those skilled in the art will readily appreciate that the present invention may have various modifications and variations, which are not exhaustively described here. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection claimed by the present invention.

Claims

1. An anti-fogging hollow fluid-filled lampshade, comprising a lamp housing (1), a lampshade (2), a temperature sensor (3), a humidity sensor (4), a liquid storage box (5), a heater (6), a circulation pump (7), a pipe (8), a liquid temperature sensor (9), a light source (10) and a control circuit board (11), characterized in that: The lampshade (2) is a hollow structure, comprising a hollow cavity (21) and a liquid inlet and a liquid outlet. The liquid inlet and the liquid outlet are both arranged on the back of the lampshade (2) at the portion of the hollow cavity (21) of the lampshade (2). The lamp housing (1) and the lampshade (2) are fixed together. The temperature sensor (3) and the humidity sensor (4) are fixed on the lamp housing (1) and / or the lampshade (2). The liquid storage box (5), the heater (6), the circulating pump (7), the liquid temperature sensor (9), the light source (10) and the control circuit board (11) are all fixed on the lamp housing (1). The liquid storage box (5) is provided with a liquid inlet and a liquid outlet. The heater (6) is provided with two liquid inlets. The liquid storage box (5) is installed above the heater (6), and its liquid outlet is connected to the liquid inlet of the heater (6) through a pipe (8). The circulating pump (7) is provided with a liquid inlet and a liquid outlet. The liquid outlet of the heater (6) is connected to the liquid inlet of the circulating pump (7) through the pipe (8). The liquid outlet of the circulating pump (7) is connected to the liquid inlet of the lampshade (2) through the pipe (8). The liquid outlet of the lampshade (2) is connected to the other liquid inlet of the heater (6) through the pipe (8). The control circuit board (11) is connected to the temperature sensor (3), the humidity sensor (4), the heater (6), the circulating pump (7) and the liquid temperature sensor (9).

2. The anti-fogging hollow fluid-filled lampshade according to claim 1, characterized in that: It also includes a liquid level control device, which is installed in the inner cavity of the heater (6), and the liquid inlet of the heater (6) is connected to the liquid level control device.

3. The anti-fogging hollow fluid-filled lampshade according to claim 1, characterized in that: The circulating fluid injected into the hollow cavity (21) of the lampshade (2) has a refractive index consistent with that of the lampshade.

4. The anti-fogging hollow fluid-filled lampshade according to claim 1, characterized in that: The temperature sensor (3) and the humidity sensor (4) are fixed to a non-functional area on the lamp housing (1) and / or the lampshade (2) that does not affect the light path.

5. The anti-fogging hollow fluid-filled lampshade according to claim 1, characterized in that: The liquid storage box (5), heater (6), circulation pump (7), liquid temperature sensor (9), light source (10) and control circuit board (11) are all fixed to a non-functional area of ​​the lamp housing (1) that does not affect the light path.

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