Device capable of automatically removing moisture and vehicle lamp
The cyclic moisture absorption and release mechanism of the desiccant and heat source combination device solves the problem of low anti-fogging efficiency of car lights, achieves a continuous and efficient anti-fogging effect, prevents moisture from entering in reverse, and improves the optical performance and appearance of the car lights.
Patent Information
- Application Number
- CN202422564230.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-10-23
AI Technical Summary
Existing anti-fogging solutions for headlights are inefficient or have limited effects, and there is a risk of reverse ingress of moisture, making it impossible to achieve a sustained and efficient anti-fogging effect.
A combination of a desiccant that can circulate moisture absorption and dehumidification, a water vapor collection cover, a heat source, a heat source heat conductor and a flexible pipe is used. The desiccant is heated by the heat source to evaporate the water vapor and discharge it through the flexible pipe. The air pressure valve and breathable membrane are combined to prevent moisture from entering, thereby achieving cyclic moisture absorption and dehumidification.
It achieves the continuous and efficient discharge of water vapor in the headlights, prevents fogging, avoids the reverse entry of moisture, and improves the optical performance and appearance stability of the headlights.
Smart Images
Figure CN223318937U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of vehicle lamps, and more particularly to a device capable of automatically removing moisture and a vehicle lamp. Background Art
[0002] Fogging inside headlights affects their appearance and optical performance. Current mainstream anti-fogging solutions for headlights are: 1. Adding anti-fog paint to the lampshade to reduce the visibility of mild fogging; 2. Adding ventilation holes to the housing to accelerate moisture removal from the lamp; and 3. Adding desiccant to the lamp to reduce humidity. In Solution 1, anti-fog paint can only reduce the visibility of mild fogging but cannot eliminate it. In severe fogging, it can even cause sagging, which affects the appearance and optical performance. In Solution 2, adding ventilation holes to the housing can accelerate moisture removal from the lamp to a certain extent, but its efficiency is low and its effectiveness is limited, and it also increases the risk of moisture from outside the lamp entering the lamp. In Solution 3, while desiccant can reduce humidity in the lamp for a short period of time to achieve a good anti-fogging effect, its lifespan is limited and it loses its defogging function once it reaches saturation. Therefore, providing a sustainable and efficient anti-fogging solution for headlights has become an urgent issue to be addressed. Utility Model Content
[0003] In order to achieve continuous and efficient anti-fogging of car lights, the present application provides a device and a car light that can automatically remove moisture.
[0004] In the first aspect, the present application provides an automatic dehumidification device that adopts the following technical solution:
[0005] A device capable of automatically dehumidifying comprises a desiccant capable of cyclically absorbing and releasing moisture, a moisture collection cover, a heat source, a heat source heat conductor, a housing with a through hole, and a flexible tube; the heat source is connected to the heat source heat conductor for supplying heat to the heat source heat conductor, and the bottom of the moisture collection cover is provided with an air guide hole for allowing moisture in the lamp to enter; the top of the moisture collection cover is provided with a moisture discharge channel connected to one end of the flexible tube, and the bottom of the moisture collection cover is fixedly connected to the heat source heat conductor; the desiccant is disposed in the moisture collection cover and is located above the heat source heat conductor, and the end of the flexible tube away from the moisture collection cover is connected to the through hole of the housing;
[0006] The bottom of the water vapor collection cover is connected to the heat source heat conductor, and the connection method between the water vapor collection cover and the heat source heat conductor includes method one, method two or method three.
[0007] Through the above technical solution, the water vapor in the car lamp, that is, the water vapor in the shell, enters the water vapor collection cover through the air guide hole, and is quickly absorbed by the desiccant to absorb the water vapor. After the water vapor in the car lamp is absorbed, it can play a role in improving the fogging phenomenon; heating is carried out by the heat source component, and the heat source transfers heat to the heat exchanger to evaporate the water absorbed by the desiccant, and is discharged from the through hole through the flexible tube, realizing cyclic moisture absorption and release, thereby achieving continuous and efficient anti-fogging in the car lamp.
[0008] Optionally, when method one is adopted, the heat source component is a heat source plate, and the air guide hole is a first hole groove; the heat source plate is located directly below the heat source heat conductor, and the bottom surface of the heat source heat conductor is in contact with the top surface of the heat source plate; the first hole groove is opened on the side surface of the bottom of the water vapor collection cover.
[0009] Through the above technical solution, a first method of connecting the bottom of the water vapor collection hood and the heat source heat conductor is provided.
[0010] Optionally, when the second method is adopted, the heat source component is a heat source plate, and the heat source plate and the water vapor collection cover are arranged side by side directly above the heat source heat conductor, and the bottom surfaces of the heat source plate and the water vapor collection cover are connected and fitted with the top surface of the heat source heat conductor; the bottom of the heat source heat conductor is arranged in a comb-tooth shape to form a plurality of first channels, and the air guide hole is a second hole groove, which is opened on the heat source heat conductor, and the second hole groove is connected to the first channel accordingly.
[0011] Through the above technical solution, a second method of connecting the bottom of the water vapor collection cover and the heat source heat conductor is provided.
[0012] Optionally, when the third method is adopted, the heat source component is a high-power optical unit, and a plurality of fins are provided on the heat source heat conductor; the heat source heat conductor is located directly below the water vapor collection cover, and the two ends of the heat source heat conductor are respectively fixedly connected to the two ends of the water vapor collection cover; a slot is provided on the inner side of the bottom of the water vapor collection cover, a baffle is provided in the slot, and the top end of the heat source heat conductor presses the baffle into the slot;
[0013] The heat source heat conductor is connected as a whole through a mounting ring. The heat source heat conductor is located inside the mounting ring and is arranged in a comb-like shape to form a plurality of second channels. The air guide hole is a third hole groove, and the third hole groove is opened on the baffle. The third hole groove is correspondingly connected to the second channel.
[0014] The above technical solution provides a third method for connecting the bottom of the vapor collection hood to the heat source heat conductor. When the heat source heat conductor is applied to a high-power optical unit, the fins can effectively transfer heat, and the baffle can prevent the desiccant from directly contacting the fins of the heat source heat conductor, causing scratches and damage.
[0015] Optionally, an air pressure valve is provided in the water vapor exhaust channel.
[0016] By adopting the above technical solution, the air pressure valve can be closed when there is no pressure difference or the pressure difference is small on both sides, preventing moisture outside the lamp from entering the lamp, and allowing air flow to balance the internal and external air pressure when the pressure difference between the inside and outside is large.
[0017] Optionally, a breathable membrane is provided at the through hole, and the breathable membrane covers the entire through hole.
[0018] By adopting the above technical solution, dust and liquid water can be prevented from entering the lamp while allowing air flow to pass through.
[0019] Optionally, the upper portion of the water vapor collection hood is an arc-shaped top.
[0020] By adopting the above technical solution, water vapor is concentrated at the upper part.
[0021] Optionally, the heat source board is a circuit board with LEDs or power devices.
[0022] By adopting the above technical solution, the function of providing light source or driving current for the vehicle lamp is achieved, and heat is generated during operation.
[0023] Optionally, an elastic member is provided in the water vapor collection hood, one end of the elastic member abuts against the desiccant, and the other end of the elastic member is fixedly connected to the top wall in the water vapor collection hood.
[0024] By adopting the above technical solution, the position of the desiccant can be limited, making it less likely to make abnormal noise during vibration.
[0025] In a second aspect, the present application provides a vehicle lamp that adopts the following technical solution:
[0026] A vehicle lamp comprises the above-mentioned automatic moisture-removing device.
[0027] In summary, this application has at least the following beneficial technical effects:
[0028] The moisture in the lamp can be absorbed by the desiccant through the air ducts below the moisture collection hood. When the LED or power device of the heat source board starts working, the heat generated by the heat source board is transferred to the desiccant through the heat source heat conductor attached to it. The moisture in the desiccant is evaporated by the heat. The moisture rises under the action of heat, passes through the external discharge channel above the moisture collection hood, and is finally discharged into the air outside the lamp body through a flexible tube connected to the through hole of the base. An elastic member is arranged above the desiccant. When the desiccant absorbs water and expands, the elastic member is compressed to free up more space for the desiccant. After the desiccant releases moisture due to heat and its volume decreases, the elastic member can press the desiccant against the heat source heat conductor to prevent the desiccant from shaking and making abnormal noises during vibration, thus achieving continuous and efficient anti-fogging of the car lights. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 This is a structural diagram of the first embodiment of the automatic dehumidification device of the present application.
[0030] Figure 2 This is a structural diagram of the second method of the device for automatic dehumidification in an embodiment of the present application.
[0031] Figure 3 It is a structural schematic diagram used to illustrate the elastic member in the embodiment of the present application.
[0032] Figure 4 This is a structural diagram of the third method of the device for automatic dehumidification in an embodiment of the present application.
[0033] Figure 5 It is a structural schematic diagram used to display the baffle in the third embodiment of the present application.
[0034] Explanation of the accompanying drawings: 1. Desiccant; 2. Water vapor collection cover; 3. Heat source plate; 4. Heat source heat conductor; 5. Shell; 6. Flexible tube; 7. First hole slot; 8. Water vapor exhaust channel; 9. Through hole; 10. Water vapor; 11. Arc top; 12. Air pressure valve; 13. Breathable membrane; 14. Air; 15. Power device; 16. Second hole slot; 17. Pressure plate; 18. Elastic part; 19. Baffle; 20. Third hole slot; 21. High-power optical unit; 22. Mounting ring; 23. Card slot. DETAILED DESCRIPTION
[0035] The following is combined with Figure 1-5 This application is described in further detail.
[0036] In the first aspect, the present application discloses a device capable of automatically removing moisture, referring to Figure 1The automatic dehumidification device includes a desiccant 1 that can circulate moisture absorption and release, a water vapor collection cover 2, a heat source component, a heat source heat conductor 4, a shell 5 with a through hole 9 and a flexible tube 6; the heat source component is connected to the heat source heat conductor 4 to supply heat to the heat source heat conductor 4, and the bottom of the water vapor collection cover 2 is provided with an air guide hole for water vapor 10 in the lamp to enter; the top of the water vapor collection cover 2 is provided with a water vapor 10 discharge channel 8 and is connected to one end of the flexible tube 6, and the bottom of the water vapor collection cover 2 is fixedly connected to the heat source heat conductor 4; the desiccant 1 is arranged in the water vapor collection cover 2 and is located above the heat source heat conductor 4, and the end of the flexible tube 6 away from the water vapor collection cover 2 is connected to the through hole 9 of the shell 5.
[0037] The bottom of the vapor collection hood 2 is connected to the heat source heat conductor 4. The connection method between the vapor collection hood 2 and the heat source heat conductor 4 is Method 1. When using Method 1, the heat source is the heat source plate 3, and the air guide hole is the first hole groove 7. The heat source plate 3 is located directly below the heat source heat conductor 4, and the bottom surface of the heat source heat conductor 4 is aligned with the top surface of the heat source plate 3. The first hole groove 7 is opened on the side of the bottom of the vapor collection hood 2.
[0038] The water vapor 10 in the headlight, that is, the water vapor 10 in the shell 5 enters the water vapor collecting cover 2 through the air guide hole, and is quickly absorbed by the desiccant 1 to absorb the water vapor 10. After the water vapor 10 in the headlight is absorbed, it can play a role in improving the fogging phenomenon; it is heated by the heat source component, and the heat source transfers heat to the heat exchanger to evaporate the water absorbed by the desiccant 1, and is discharged from the through hole 9 through the flexible tube 6, realizing cyclic moisture absorption and dehumidification, thereby realizing continuous and efficient anti-fogging in the headlight.
[0039] Reference Figure 1 The upper portion of the water vapor collecting cover 2 is an arc-shaped top 11, which is conducive to the collection of water vapor 10 at the upper portion. The heat source board 3 is a circuit board with LEDs or power devices 15, which has the function of providing light source or driving current for the car lights, and generates heat when working.
[0040] Reference Figure 1 A pressure valve 12 is installed within the water vapor discharge channel 8, which allows 10 to escape. This valve is currently available and can be selected and installed based on practical needs. When there is no pressure differential or a small pressure differential across the valve 12, it can be closed to prevent moisture from entering the lamp. When the pressure differential is large, air flow is allowed to balance the pressure inside and outside. A breathable membrane 13 is installed at the through hole 9, covering the entire through hole 9. This membrane allows air flow while preventing dust and liquid water from entering the lamp.
[0041] The principle of the automatic dehumidification device of the present embodiment is as follows: moisture 10 within the lamp can pass through the slots 7 below the moisture collection cover 2 or the slots 16 below the heat source heat conductor 4 and be absorbed by the desiccant 1. When the LED or power device 15 of the heat source plate 3 begins operating, the heat generated by the heat source plate 3 is transferred to the desiccant 1 through the heat source heat conductor 4 attached thereto. The moisture 10 within the desiccant 1 is evaporated by the heat. The moisture 10 rises under the influence of the heat, passes through the exhaust channel 8 above the moisture collection cover, and is ultimately discharged into the air 14 outside the lamp body through the flexible tube 6 connected to the through hole 9 of the base 5. An elastic member is positioned above the desiccant 1. When the desiccant 1 absorbs moisture and expands, the elastic member compresses to free up more space for the desiccant 1. After the desiccant 1 releases moisture 10 due to heat, its volume decreases, and the elastic member presses the desiccant 1 against the heat source heat conductor 4, preventing the desiccant 1 from shaking and making unusual noises during vibration, thus achieving continuous and efficient anti-fogging for the vehicle lamp.
[0042] In a second aspect, the present application discloses a vehicle lamp comprising the above-mentioned automatic moisture removal device.
[0043] Example 2
[0044] The difference between the embodiment of the present application and embodiment 1 is that, Figure 2 The connection method between the water vapor collection cover 2 and the heat source heat conductor 4 is method 2. When method 2 is adopted, the heat source component is a heat source plate 3. The heat source plate 3 and the water vapor collection cover 2 are arranged side by side directly above the heat source heat conductor 4. The bottom surfaces of the heat source plate 3 and the water vapor collection cover 2 are connected to and fit the top surface of the heat source heat conductor 4. The bottom of the heat source heat conductor 4 is arranged in a comb-like shape to form multiple first channels. The air guide holes are second slots 16. The second slots 16 are opened on the heat source heat conductor 4 and are connected to the first channels accordingly.
[0045] Reference Figure 3 An elastic member 18 is provided in the water vapor collection cover 2. In the embodiment of the present application, the elastic member 18 is a spring and two are arranged in parallel. One end of the spring abuts against the desiccant 1 through the pressure plate 17, and the other end of the elastic member 18 is fixedly connected to the top wall inside the water vapor collection cover 2, which can limit the position of the desiccant 1 and make it less likely to make abnormal noise during vibration.
[0046] Example 3
[0047] The difference between the embodiment of the present application and embodiment 1 is that, Figure 4-5The connection between the water vapor collection cover 2 and the heat source heat conductor 4 is in method 1. When method 3 is adopted, the heat source is a high-power optical unit 21, and the heat source heat conductor 4 is provided with a plurality of fins. The heat source heat conductor 4 is located directly below the water vapor collection cover 2, and the two ends of the heat source heat conductor 4 are fixedly connected to the two ends of the water vapor collection cover 2; a slot 23 is provided on the inner side of the bottom of the water vapor collection cover 2, and a baffle 19 is fixed in the slot 23. The top end of the heat source heat conductor 4 presses the baffle 19 into the slot 23.
[0048] The heat source heat conductor 4 is connected as a whole via a mounting ring 22. Located within the mounting ring 22, the heat source heat conductor 4 is formed with multiple second channels arranged in a comb-like pattern. The air guide holes are third slots 20, which are provided on the baffle 19 and communicate with the corresponding second channels. When the heat source heat conductor 4 is used in a high-power optical unit 21, the fins effectively transfer heat, while the baffle 19 prevents the desiccant 1 from directly contacting the fins of the heat source heat conductor 4, potentially causing scratches and damage.
[0049] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. A device capable of automatically removing moisture, characterized in that: The invention comprises a desiccant (1) capable of cyclically absorbing and releasing moisture, a water vapor collecting cover (2), a heat source, a heat source heat conductor (4), a shell (5) with a through hole (9), and a flexible tube (6); the heat source is connected to the heat source heat conductor (4) for supplying heat to the heat source heat conductor (4); the bottom of the water vapor collecting cover (2) is provided with an air guide hole for allowing water vapor (10) in the lamp to enter; the top of the water vapor collecting cover (2) is provided with a water vapor discharge channel (8) and is connected to one end of the flexible tube (6); the bottom of the water vapor collecting cover (2) is fixedly connected to the heat source heat conductor (4); the desiccant (1) is arranged in the water vapor collecting cover (2) and is located above the heat source heat conductor (4); the end of the flexible tube (6) away from the water vapor collecting cover (2) is connected to the through hole (9) of the shell (5); The bottom of the water vapor collection hood (2) is connected to the heat source heat conductor (4), and the connection method between the water vapor collection hood (2) and the heat source heat conductor (4) includes method one, method two, or method three.
2. The automatic dehumidification device according to claim 1, characterized in that: When the first method is adopted, the heat source component is a heat source plate (3), and the air guide hole is a first hole groove (7); the heat source plate (3) is located directly below the heat source heat conductor (4), and the bottom surface of the heat source heat conductor (4) is in contact with the top surface of the heat source plate (3); and the first hole groove (7) is provided on the side surface of the bottom of the water vapor collection cover (2).
3. The automatic dehumidification device according to claim 1, characterized in that: When the second method is adopted, the heat source element is a heat source plate (3), the heat source plate (3) and the water vapor collection cover (2) are arranged in parallel directly above the heat source heat conductor (4), and the bottom surfaces of the heat source plate (3) and the water vapor collection cover (2) are connected to and fitted with the top surface of the heat source heat conductor (4); the bottom of the heat source heat conductor (4) is arranged in a comb-tooth shape to form a plurality of first channels, and the air guide hole is a second hole groove (16), the second hole groove (16) is opened on the heat source heat conductor (4), and the second hole groove (16) is correspondingly connected to the first channel.
4. The automatic dehumidification device according to claim 1, characterized in that: When the third method is adopted, the heat source component is a high-power optical unit (21), and a plurality of fins are provided on the heat source heat conductor (4); the heat source heat conductor (4) is located directly below the water vapor collection cover (2), and the two ends of the heat source heat conductor (4) are respectively fixedly connected to the two ends of the water vapor collection cover (2); a slot (23) is provided on the inner side of the bottom of the water vapor collection cover (2), a baffle (19) is provided in the slot (23), and the top end of the heat source heat conductor (4) presses the baffle (19) tightly against the slot (23); The heat source heat conductor (4) is connected as a whole through the mounting ring (22); the heat source heat conductor (4) is located inside the mounting ring (22) and is arranged in a comb-like shape to form a plurality of second channels; the air guide hole is a third hole groove (20); the third hole groove (20) is opened on the baffle (19); and the third hole groove (20) is correspondingly connected to the second channel.
5. The automatic dehumidification device according to any one of claims 1 to 4, characterized in that: An air pressure valve (12) is provided in the water vapor discharge channel (8).
6. The automatic dehumidification device according to any one of claims 1 to 4, characterized in that: A breathable membrane (13) is provided at the through hole, and the breathable membrane (13) covers the entire through hole.
7. The automatic dehumidification device according to any one of claims 1 to 4, characterized in that: The upper part of the water vapor collection cover (2) is an arc-shaped top.
8. The automatic dehumidification device according to claim 2 or 3, characterized in that: The heat source plate (3) is a circuit board with an LED or a power device (15).
9. The automatic dehumidification device according to claim 1, characterized in that: An elastic member is provided in the water vapor collection cover (2), one end of the elastic member abuts against the desiccant, and the other end of the elastic member is fixedly connected to the top wall in the water vapor collection cover (2).
10. A vehicle lamp, characterized in that: The invention comprises the automatic dehumidification device according to any one of claims 1 to 9.