Light machine device, vehicle lamp device and vehicle

Abstract

The embodiment of the utility model provides a light machine device, a vehicle lamp device and a vehicle, and belongs to the technical field of light machines. The optical machine device comprises a humidity control part, a closed cavity and an optical modulation device. The light modulation device and the humidity control part are both located in the closed cavity, the light modulation device is used for generating light beams emitted to the outside of the closed cavity, and the humidity control part is used for absorbing moisture in the closed cavity. Through the arrangement, condensation can be improved, and the reliability of the automobile lamp device is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of optical engines, and particularly to an optical engine device, a vehicle lamp device, and a vehicle. Background Art

[0002] Currently, a vehicle lamp includes a lamp housing and an optical engine device. The optical engine device includes an optical modulation device and a heat dissipation device. The optical modulation device and the heat dissipation device are installed inside the lamp housing. The optical modulation device includes a housing, a modulation device, and a lens located inside the housing. The modulation device generates an imaging beam and / or an illumination beam that is directed towards the lens. The heat dissipation device is used to dissipate heat from the heat-generating components (such as light sources, digital micromirror devices, etc.) of the optical modulation device, so that the temperature of the heat-generating components is within a reasonable range. However, the environment inside the lamp housing is a humid environment, and condensation will appear on the surfaces of devices such as digital micromirror devices, affecting the function of the vehicle lamp and reducing the reliability of the vehicle lamp. Summary of the Utility Model

[0003] The embodiments of the present application provide an optical engine device, a vehicle lamp device, and a vehicle, which can improve condensation and enhance the reliability of the vehicle lamp device.

[0004] In a first aspect of the present application, an optical engine device is provided. The optical engine device includes a humidity control component, a sealed cavity, and an optical modulation component. Among them, the optical modulation component and the humidity control component are both located inside the sealed cavity. The optical modulation component is used to generate a beam that is directed towards the outside of the sealed cavity, and the humidity control component is used to absorb the moisture inside the sealed cavity.

[0005] The sealed cavity of the optical engine device provided by the embodiments of the present application has a high waterproof level, which can isolate the external water vapor from entering the inside of the sealed cavity, making the concentration of moisture inside the sealed cavity low. At the same time, by absorbing the moisture inside the sealed cavity with the humidity control component, the concentration of moisture inside the sealed cavity is further reduced. Therefore, with the mutual cooperation of the sealed cavity and the humidity control component, the concentration of moisture inside the sealed cavity can be maintained within a low range, avoiding the formation of condensation on the surfaces of the components (such as the optical modulation component) inside the sealed cavity and enhancing the reliability of the optical engine device.

[0006] In some possible implementation manners, the waterproof level of the sealed cavity is greater than or equal to IPX2, which can further reduce the moisture entering the sealed cavity, making the moisture concentration inside the sealed cavity low and reducing the probability of condensation.

[0007] In some possible implementation manners, the humidity control component is an irreversible moisture absorbent, which can absorb the moisture inside the sealed cavity.

[0008] In some possible implementation manners, the humidity control component is a reversible moisture absorption component, and the reversible moisture absorption component has an absorption state and a release state. When the reversible moisture absorption component is in the absorption state, the reversible moisture absorption component absorbs the moisture in the sealed cavity. When the reversible moisture absorption component is in the release state, the reversible moisture absorption component releases moisture into the sealed cavity.

[0009] In this way, as the temperature in the sealed cavity changes, the humidity control component can switch between the absorption state and the release state. Specifically, when the humidity in the sealed cavity is lower than the preset threshold, the humidity control component absorbs the moisture in the sealed cavity, and when the humidity in the sealed cavity is higher than the preset threshold, the humidity control component releases moisture into the sealed cavity. In this way, the humidity in the sealed cavity can be stabilized, and the humidity control component can be recycled.

[0010] In some possible implementation manners, the optical engine device includes a plurality of humidity control components, a part of the plurality of humidity control components are irreversible moisture absorption components, and another part are reversible moisture absorption components, or all of the plurality of humidity control components are irreversible moisture absorption components or reversible moisture absorption components.

[0011] In this way, arranging multiple humidity control components in the sealed cavity can further improve the efficiency of absorbing the moisture in the sealed cavity and improve the humidity control effect.

[0012] In some possible implementation manners, the optical engine device further includes a lens and a first housing. The lens is used to project the light beam generated by the light modulation device to the outside of the sealed cavity. The first housing has a first opening, the lens is disposed at the first opening, and the first housing and the lens enclose the sealed cavity.

[0013] In some possible implementation manners, the optical engine device further includes a heat dissipation component, the heat dissipation component is located outside or inside the sealed cavity, and the heat dissipation component is connected to the first housing.

[0014] In this way, the heat dissipation component dissipates heat from the heat generating components in the sealed cavity, for example, dissipates heat from the light modulation device, so that the temperature of the heat generating components in the sealed cavity is within a reasonable range.

[0015] In some possible implementation manners, the heat dissipation component is located outside the sealed cavity, the first housing includes a rear cover, the rear cover includes a first side and a second side that are opposite to each other along the optical axis direction of the lens, the light modulation device and the humidity control component are both disposed on the first side, and the heat dissipation component is disposed on the second side.

[0016] In this way, the heat dissipation component dissipates heat from the heat generating components in the sealed cavity through the rear cover, for example, dissipates heat from the light modulation device, so that the temperature of the heat generating components in the sealed cavity is within a reasonable range. In addition, when the heat dissipation component is disposed outside the sealed cavity and the heat dissipation component is a liquid cooling plate, when the cooling medium in the liquid cooling plate leaks from the leakage point, it will not leak into the interior of the sealed cavity.

[0017] In some possible implementation manners, the heat dissipation component is a liquid cooling plate or a thermoelectric cooler, which can timely take away the heat generated by the heat generating devices in the sealed cavity, enabling the optical engine device to have parameters such as high power, high resolution, and high brightness, and improving the performance of the optical engine device.

[0018] In some possible implementation manners, the optical engine device further includes a lens, a second housing, and a heat dissipation component. The lens is used to project the light beam generated by the light modulation device to the outside of the sealed cavity. The second housing has a first opening and a second opening. The lens is disposed at the first opening, and the heat dissipation component is disposed at the second opening. The lens, the second housing, and the heat dissipation component jointly enclose the sealed cavity.

[0019] In this way, the heat dissipation component forms a part of the cavity wall of the sealed cavity, which can shorten the heat transfer path between the heat dissipation component and the heat generating devices in the sealed cavity, thereby improving the heat dissipation effect of the heat dissipation component.

[0020] In some possible implementation manners, the light modulation device and the humidity control component are attached to the surface of the heat dissipation component, which can further improve the heat dissipation ability of the light modulation device and can timely absorb the moisture near the heat dissipation component, contributing to further improving the reliability of the light modulation device.

[0021] In some possible implementation manners, the heat dissipation component is a liquid cooling plate or a thermoelectric cooler, which can timely take away the heat generated by the heat generating devices in the sealed cavity, enabling the optical engine device to have parameters such as high power, high resolution, and high brightness, and improving the performance of the optical engine device.

[0022] In some possible implementation manners, the optical engine device further includes a light source, at least a part of the light source is disposed inside the sealed cavity, the light source is used to emit a light beam directed to the light modulation device, and the light modulation device is used to generate an imaging light beam and / or an illumination light beam directed to the outside of the sealed cavity according to the light beam emitted by the light source, so that the optical engine device can perform illumination or imaging.

[0023] In some possible implementation manners, the optical engine device further includes a reflection element, the reflection element is located inside the sealed cavity, and the reflection element is used to reflect the light beam emitted by the light source to the light modulation device.

[0024] In this way, by using the reflection element to bend the optical path between the light modulation device and the light source, the relative positions of the light source and the light modulation device can be decoupled, which helps to reduce the volume of the optical engine device and achieve miniaturization.

[0025] In some possible implementation manners, the light modulation device is a liquid crystal on silicon, a digital micromirror device, or a microelectromechanical system, which can modulate the imaging light beam and / or the illumination light beam directed to the lens according to the light beam emitted by the light source.

[0026] The second aspect of the present application provides a vehicle lamp device, which includes a lamp housing and an optical engine device as described in any one of the first aspects, and at least a part of the optical engine device is disposed inside the lamp housing.

[0027] In this way, the vehicle lamp device can have a lighting function and a projection function, and can meet the lighting requirements and project images to corresponding positions, such as projecting onto the road surface in front of the vehicle lamp device. In addition, the waterproof level of the sealed cavity is high, which can prevent moisture in the lamp housing from entering the inside of the sealed cavity, ensure that the concentration of moisture in the sealed cavity is low, avoid condensation on the surfaces of components such as heating devices in the sealed cavity, and improve the reliability of the vehicle lamp device.

[0028] In some possible implementation manners, the optical engine device includes a heat dissipation component, and the heat dissipation component is a liquid cooling plate, and the liquid inlet and liquid outlet of the liquid cooling plate are located outside the lamp housing.

[0029] In this way, when the cooling medium leaks from the liquid outlet and the liquid inlet, the cooling medium will not leak into the inside of the lamp housing and will not affect the components inside the lamp housing, which can further improve the reliability of the vehicle lamp device.

[0030] In some possible implementation manners, the liquid cooling plate includes a first plate body and a second plate body having a liquid inlet and a liquid outlet, and the first plate body and the second plate body enclose a containing cavity, and the connection part of the first plate body and the second plate body is located outside the lamp housing.

[0031] In this way, when the cooling medium leaks from the connection part of the first plate body and the second plate body, the cooling medium will not leak into the inside of the lamp housing and will not affect the components inside the lamp housing, which can further improve the reliability of the vehicle lamp device.

[0032] The third aspect of the present application provides a vehicle, which includes a vehicle lamp device as described in any one of the second aspects.

[0033] In some possible implementation manners, the vehicle further includes a liquid cooling circuit system, the vehicle lamp device includes a liquid cooling plate, the liquid inlet and liquid outlet of the liquid cooling plate are respectively connected to the liquid cooling circuit system, and the liquid cooling circuit system includes a radiator for cooling the cooling medium in the liquid cooling circuit system.

[0034] In some possible implementation manners, the liquid cooling plate is connected in series with the liquid cooling circuit system, or the liquid cooling plate is connected in parallel with the liquid cooling circuit system.

[0035] In some possible implementation manners, the vehicle further includes a flow regulating valve connected between the liquid cooling plate and the liquid cooling circuit system. In this way, the flow regulating valve can adjust the flow rate of the cooling medium flowing into the liquid cooling plate, and achieve precise temperature control by controlling the flow rate of the cooling medium, so as to prevent the fogging problem caused by too low temperature inside the vehicle lamp device. Description of the Drawings

[0036] Figure 1 It is a schematic cross-sectional view of a vehicle lamp in the related art;

[0037] Figure 2 It is a schematic structural view of a vehicle provided by an embodiment of the present application;

[0038] Figure 3 It is a schematic architecture view of a vehicle provided by an embodiment of the present application;

[0039] Figure 4 It is a schematic cross-sectional view of a vehicle lamp device provided by an embodiment of the present application;

[0040] Figure 5 It is a schematic cross-sectional view of another vehicle lamp device provided by an embodiment of the present application.

[0041] Explanation of reference numerals:

[0042] 100, vehicle;

[0043] 200, vehicle lamp device;

[0044] 300, liquid cooling circuit system; 310, water kettle; 320, water pump; 340, radiator; 350, liquid inlet pipe; 360, liquid outlet pipe;

[0045] 400, component to be cooled;

[0046] 500, optical engine device;

[0047] 510, lens;

[0048] 520, first housing; 521, front shell; 522, rear cover;

[0049] 530, light modulation device; 540, light source; 550, reflection element; 560, second housing; 570, first opening; 580, second opening; 590, third opening;

[0050] 600, lamp housing;

[0051] 10, heating device; 20, humidity control component; 30, sealed cavity;

[0052] 40, heat dissipation component; 41, first plate body; 42, second plate body; 43, accommodation cavity; 44, liquid outlet; 45, liquid inlet. Detailed implementation manners

[0053] Figure 1 It is a schematic cross-sectional view of a vehicle lamp in the related art. In the related art, as Figure 1As shown in the figure, the vehicle lamp includes a lamp housing 610, a light modulation device 620, and a liquid cooling and heat dissipation device 630. Among them, the light modulation device 620 is used to meet the lighting and projection requirements, and the light modulation device 620 is installed inside the lamp housing 610. The liquid cooling and heat dissipation device 630 includes a liquid cooling plate 631, an inlet pipe 632, and an outlet pipe 633. The liquid cooling plate 631 is installed inside the lamp housing 610. The liquid cooling plate 631 is connected to the liquid cooling circuit system 700 on the vehicle through the inlet pipe 632 and the outlet pipe 633. The liquid cooling plate 631 is attached to the heat generating components 621 such as the light source and the light modulation device in the light modulation device 620. The cooling medium (such as Figure 1 shown by the arrow in

[0054] is used to exchange heat with the heat generating components 621 such as the light source and the light modulation device in the lamp housing 610, so that the temperature of the heat generating components 621 is within a reasonable range, and the reliability of the vehicle lamp is improved.

[0055] In view of this, an optical engine device 500, a vehicle lamp device 200, and a vehicle 100 are provided in an embodiment of the present application. The optical engine device 500 arranges components such as a light source 540 and a light modulation device 530 in a sealed cavity 30 with a high waterproof level. While isolating the entry of external moisture into the sealed cavity 30, the moisture in the sealed cavity 30 is absorbed by the humidity control member 20, so that the concentration of moisture in the sealed cavity 30 is relatively low, reducing the probability of condensation on the surfaces of components such as the light source 540 and the light modulation device 530, and improving the reliability of the optical engine device 500, thereby improving the reliability of the vehicle lamp device 200.

[0056] The vehicle 100 provided in the embodiment of the present application may include, but is not limited to, known vehicles 100 such as cars, airplanes, ships, and trains. In addition, the vehicle 100 provided in the embodiment of the present application may also be a newly emerging vehicle 100 in the future. Among them, the car may be an electric vehicle, a fuel vehicle, or a hybrid vehicle, such as a pure electric vehicle, an extended-range electric vehicle, a new energy vehicle, a fuel cell vehicle, a hybrid electric vehicle, etc.

[0057] Exemplarily, the following takes a car as the vehicle 100 as an example for illustration, as Figure 2 shown. Among them, Figure 2 is a schematic structural diagram of a vehicle provided in an embodiment of the present application.

[0058] Figure 3 This is a schematic diagram of the architecture of a vehicle provided by an embodiment of the present application.

[0059] As Figure 3 shown, the vehicle 100 includes a liquid cooling circuit system 300, and the liquid cooling circuit system 300 is used to dissipate heat from heat - dissipating components 400 such as the motor, motor control unit (MCU), on - board charger (OBC), and DC - DC converter in the vehicle 100.

[0060] Exemplarily, as Figure 3 shown, the liquid cooling circuit system 300 may include a water kettle 310, a water pump 320, and a radiator 340. Among them, the radiator 340 is used to cool the cooling medium in the liquid cooling circuit system 300. The water kettle 310 can expel air from the liquid cooling circuit system 300 and supplement the cooling medium in the liquid cooling circuit system 300. The water pump 320 is used to provide power for the cooling medium so that the cooling medium circulates in the liquid cooling circuit system 300. After the cooling medium passes through the heat - dissipating component 400, it cools the heat - dissipating component 400 through heat exchange. The cooling medium heated by the heat - dissipating component 400 flows into the radiator 340. A fan may also be provided in the radiator 340. The radiator 340 can cool the cooling medium through natural air convection, forced air convection by the fan, or the refrigerant in the vehicle, so that the cooling medium can cool the heat - dissipating component 400 again.

[0061] Among them, the cooling medium can be distilled water, deionized water, or other liquid coolants, etc. It should be understood that the connection methods of the heat - dissipating component 400, the water kettle 310, the water pump 320, and the radiator 340, etc. may not be limited to the connection method as Figure 3 shown.

[0062] As Figure 3 shown, the vehicle 100 also includes a headlight device 200. The headlight device 200 can be a headlight, a taillight, and other decorative lights, etc. For example, Figure 2 shown, the headlight device 200 is a headlight. The headlight device 200 has heat - generating components 10 such as a light source 540, a light modulation device 530, and a circuit board. In order to ensure that the performance of the headlight device 200 is within a reasonable range, it is also necessary to dissipate heat from the heat - generating components 10 so that the temperature of the heat - generating components 10 is within a reasonable range.

[0063] Exemplarily, as Figure 3As shown, the liquid cooling circuit system 300 can also dissipate heat from the heating device 10 in the vehicle lamp device 200. The vehicle lamp device 200 shares the same liquid cooling circuit system 300 with the whole vehicle. The vehicle lamp device 200 does not require a separate cooling system, which can reduce the volume and mass of the vehicle lamp device 200, the vehicle lamp specifications can be downgraded, and the production efficiency is improved.

[0064] Exemplarily, as Figure 3 shown, the vehicle lamp device 200 can include a heat dissipation member 50. The heat dissipation member 50 can be a liquid cooling plate, and the liquid cooling plate is used to dissipate heat from the heating device 10. The liquid cooling plate and the heating device 10 can be in direct contact or indirect contact.

[0065] The liquid cooling plate has a liquid outlet 44 and a liquid inlet 45. The liquid inlet 45 and the liquid outlet 44 are respectively connected to the liquid cooling circuit system 300. The liquid inlet 45 is used for the cooling medium in the liquid cooling circuit system 300 to enter the liquid cooling plate, and the liquid outlet 44 is used for the cooling medium in the liquid cooling plate to enter the liquid cooling circuit system 300. In this way, the cooling medium in the liquid cooling plate can exchange heat with the heating device 10, and the cooling medium heated by the heating device 10 enters the liquid cooling circuit system 300 from the liquid outlet 44 to take away the heat generated by the heating device 10, so that the temperature of the heating device 10 is within a reasonable range.

[0066] In some embodiments, as Figure 3 shown, the liquid cooling circuit system 300 can also include a liquid inlet pipe 350 and a liquid outlet pipe 360. The liquid inlet pipe 350 is communicated with the liquid inlet 45 of the liquid cooling plate, and the liquid outlet pipe 360 is communicated with the liquid outlet 44 of the liquid cooling plate. The cooling medium circulates between the liquid cooling plate and the liquid cooling circuit system 300 through the liquid outlet pipe 360 and the liquid inlet pipe 350. In some other embodiments, the vehicle lamp device 200 can also include a liquid inlet pipe 350 and a liquid outlet pipe 360. One end of the liquid inlet pipe 350 is communicated with the liquid inlet 45, the other end of the liquid inlet pipe 350 is communicated with the liquid cooling circuit system 300, one end of the liquid outlet pipe 360 is communicated with the liquid outlet 44, and the other end of the liquid outlet pipe 360 is communicated with the liquid cooling circuit system 300. The cooling medium circulates between the liquid cooling plate and the liquid cooling circuit system 300 through the liquid outlet pipe 360 and the liquid inlet pipe 350.

[0067] In some possible implementation manners, the liquid cooling plate and the liquid cooling circuit system 300 can be connected in series. In some other possible implementation manners, as Figure 3 shown, the liquid cooling plate and the liquid cooling circuit system 300 can also be connected in parallel.

[0068] In some possible implementations, the vehicle 100 may further include a flow regulating valve (not shown in the figure), and the flow regulating valve is connected between the liquid cooling plate and the liquid cooling circuit system 300. In this way, the flow regulating valve can regulate the flow rate of the cooling medium flowing into the liquid cooling plate in the headlight device 200, and achieve precise temperature control by controlling the flow rate of the cooling medium, thereby preventing the fogging problem caused by the too low temperature inside the headlight device 200.

[0069] Figure 4 The figure is a schematic cross-sectional view of a headlight device provided by an embodiment of the present application.

[0070] As Figure 4 shown, the headlight device 200 includes a lamp housing 600 and an optical engine device 500. Among them, the optical engine device 500 is used to generate an imaging light beam that is emitted to the outside of the lamp housing 600, and the imaging light beam is used to form an image. At least part of the optical engine device 500 is disposed inside the lamp housing 600. For example, a part of the optical engine device 500 is disposed inside the lamp housing 600, and another part of the optical engine device 500 is disposed outside the lamp housing 600. Of course, the entire optical engine device 500 can also be disposed inside the lamp housing 600.

[0071] It should be noted that in addition to generating an imaging light beam, the optical engine device 500 can also generate a lighting light beam that is emitted to the outside of the lamp housing 600, so that the headlight device 200 can have a lighting function and can meet the lighting requirements.

[0072] Exemplarily, the lamp housing 600 may include a mounting opening that communicates with the inside of the lamp housing 600, and the optical engine device 500 passes through the mounting opening, so that a part of the optical engine device 500 is located inside the lamp housing 600 and another part is located outside the lamp housing 600.

[0073] The optical engine device 500 may include an optical modulation device and a heat dissipation member 40. The optical modulation device is used to generate an imaging light beam and / or a lighting light beam, and the heat dissipation member 40 is used to dissipate heat from the optical modulation device, so that the temperature of the optical modulation device is within a suitable range.

[0074] As Figure 4As shown, the light modulation device may include a lens 510, a first housing 520, a light modulation device 530, a light source 540, a humidity control member 20, and a reflection element 550. Among them, the first housing 520 has a first opening 570, the lens 510 is disposed at the first opening 570, and the first housing 520 and the lens 510 enclose an airtight cavity 30. The reflection element 550, the light modulation device 530, and the humidity control member 20 are all located inside the airtight cavity 30. At least a part of the light source 540 is disposed inside the airtight cavity 30. For example, the light source 540 is disposed inside the airtight cavity 30. Of course, a part of the light source 540 may also be disposed inside the airtight cavity 30. The heat dissipation member 40 is located outside the airtight cavity 30, and the heat dissipation member 40 is connected to the first housing 520. The heat dissipation member 40 can dissipate heat from the heat generating components 10 such as the light modulation device 530 and the light source 540 of the light modulation device, so that the temperatures of these components are within a suitable range.

[0075] The humidity control member 20 is used to absorb moisture inside the airtight cavity 30. The light source 540 is used to emit a light beam directed at the light modulation device 530. The reflection element 550 is used to reflect the light beam emitted by the light source 540 to the light modulation device 530. By using the reflection element 550 to bend the optical path between the light modulation device 530 and the light source 540, the relative positions of the light source 540 and the light modulation device 530 can be decoupled, which helps to reduce the volume of the optical engine device 500 and achieve miniaturization. The light modulation device 530 is used to generate an imaging light beam and / or an illumination light beam directed at the lens 510 according to the light beam from the reflection element 550. The lens 510 is used to project the imaging light beam and / or the illumination light beam emitted by the light modulation device 530 to the outside of the airtight cavity 30.

[0076] It should be noted that the optical path scheme inside the airtight cavity 30 may be other schemes in addition to as Figure 4 shown. That is to say, the positional layouts of components such as the light source 540, the light modulation device 530, and the reflection element 550 may be other layout schemes in addition to as Figure 4 shown.

[0077] It should also be noted that the components located inside the airtight cavity 30 may include other components in addition to the light modulation device 530, the reflection element 550, and the light source 540. For example, the light modulation device may further include a circuit board (not shown in the figure) located inside the airtight cavity 30.

[0078] Exemplarily, as Figure 4 shown, the reflection element 550 may be a curved mirror. Of course, the reflection element 550 may also be other structures.

[0079] There is no limitation on the specific structure of the optical modulation device 530. Among them, the optical modulation device 530 can be a liquid crystal on silicon (LCOS), a digital micromirror device (DMD), a microelectromechanical system (MEMS), etc., and can modulate the imaging beam and / or illumination beam emitted to the lens 510 according to the light beam emitted by the light source 540.

[0080] The sealing performance of the sealed cavity 30 surrounded by the first housing 520 and the lens 510 is good. The sealed cavity 30 has a high waterproof level, which can isolate the moisture in the lamp housing 600 from entering the interior of the sealed cavity 30, ensuring that the concentration of moisture in the sealed cavity 30 is low, and avoiding condensation on the surfaces of devices such as the optical modulation device 530 in the sealed cavity 30. At the same time, by absorbing the moisture in the sealed cavity 30 through the humidity control member 20, the concentration of moisture in the sealed cavity 30 is further reduced, and the probability of condensation on the surfaces of the devices in the sealed cavity 30 is further reduced. Therefore, with the mutual cooperation of the sealed cavity 30 and the humidity control member 20, the concentration of moisture in the sealed cavity 30 can be maintained within a low range, avoiding the probability of condensation of the devices (such as the optical modulation device 530) in the sealed cavity 30, improving the reliability of the optical machine device 500, and thus improving the reliability of the vehicle lamp device 200.

[0081] In some possible implementation manners, the waterproof level of the sealed cavity 30 is greater than or equal to IPX2, which can further reduce the moisture entering the sealed cavity 30, make the moisture concentration in the sealed cavity 30 low, and reduce the probability of condensation.

[0082] There is no limitation on the specific waterproof level of the sealed cavity 30 here. For example, the waterproof level of the sealed cavity 30 can be IPX3, IPX4, IPX5, etc.

[0083] It should be noted that the determination of the waterproof level can refer to the test indicators for waterproof levels in standards such as ISO20653 or GB4208 (IEC60529).

[0084] It should be noted that in order to make the waterproof level of the sealed cavity 30 meet the requirements, the structure constituting the sealed cavity 30 can adopt one or more of the following sealing methods: structural adhesive sealing, glue sealing, sealing rubber ring sealing, dispensing sealing, welding sealing, hard lapping of structural parts. Of course, other sealing methods can also be used, which will not be elaborated here one by one.

[0085] In some possible implementation manners, the humidity control member 20 can be an irreversible moisture-absorbing member, and the irreversible moisture-absorbing member will not release moisture to the sealed cavity 30 after absorbing moisture.

[0086] Exemplarily, the irreversible moisture-absorbing member may include a first packaging member and an irreversible moisture-absorbing material. The irreversible moisture-absorbing material is located inside the first packaging member, and the first packaging member allows moisture to pass through to ensure that the irreversible moisture-absorbing material absorbs moisture.

[0087] The irreversible moisture-absorbing material may include an inorganic moisture-absorbing material and / or an organic moisture-absorbing material. Specifically, the irreversible moisture-absorbing material may include one or several of calcium chloride, silica gel, montmorillonite, molecular sieve, activated mineral desiccant, natural fiber desiccant, calcium sulfate, barium oxide, phosphorus pentoxide, magnesium perchlorate, alumina, calcium oxide, anhydrous copper sulfate, magnesium sulfate, sodium sulfate, potassium carbonate, or similar materials.

[0088] The material of the first packaging member may include polytetrafluoroethylene-based composite materials (such as PTFE+PET, PTFE+PE, PTFE+PP, PTFE+PU, etc.), polyethylene-based composite materials (such as PE+PP, PE+PE / PP, PE+PET, etc.), polyurethane (PU)-based composite materials, DuPont paper (PE), four-layer structure composite film materials (such as PTFE+PET+PP+PE), non-woven fabric, or one or several of similar materials.

[0089] In some other possible implementation manners, the humidity control member 20 may also be a reversible moisture-absorbing member. The reversible moisture-absorbing member can absorb the moisture in the sealed cavity 30 and release the moisture into the sealed cavity 30 under certain conditions. Specifically, the reversible moisture-absorbing member has an absorption state and a release state. When the reversible moisture-absorbing member is in the absorption state, the reversible moisture-absorbing member absorbs the moisture in the sealed cavity 30. When the reversible moisture-absorbing member is in the release state, the reversible moisture-absorbing member releases the moisture into the sealed cavity 30.

[0090] In this way, as the humidity in the sealed cavity 30 changes, the humidity control member 20 can switch between the absorption state and the release state. Specifically, when the humidity in the sealed cavity 30 is lower than the preset threshold, the humidity control member 20 absorbs the moisture in the sealed cavity 30. When the humidity in the sealed cavity 30 is higher than the preset threshold, the humidity control member 20 releases the moisture into the sealed cavity 30. In this way, the humidity of the sealed cavity 30 can be stabilized, and the humidity control member 20 can be recycled.

[0091] Exemplarily, the reversible moisture-absorbing member may include a second packaging member and a reversible moisture-absorbing material. The reversible moisture-absorbing material is located inside the second packaging member, and the second packaging member allows moisture to pass through to ensure that the reversible moisture-absorbing material absorbs or releases moisture.

[0092] The reversible moisture-absorbing material may include a polymer substrate and at least one of organic salts and inorganic salts. Among them, the selection range of the polymer substrate may include one or more of plant fibers, celluloses, carboxymethyl celluloses, polyvinyl alcohols, polyacrylic acids, polyacrylamides, or similar materials. The selection range of the organic / inorganic salts may include one or more of sodium carbonate, potassium carbonate, sodium sulfate, zinc sulfate, sodium acetate, potassium acetate, sodium phosphate, or similar materials.

[0093] The material of the second packaging component may include polytetrafluoroethylene-based composite materials (such as PTFE+PET, PTFE+PE, PTFE+PP, PTFE+PU, etc.), polyethylene-based composite materials (such as PE+PP, PE+PE / PP, PE+PET, etc.), polyurethane (PU)-based composite materials, DuPont paper (PE), four-layer structure composite film materials (such as PTFE+PET+PP+PE), non-woven fabrics, or one or more of similar materials.

[0094] Exemplarily, as Figure 4 shown, a humidity control component 20 is disposed inside the sealed cavity 30. At this time, the humidity control component 20 may be a reversible moisture-absorbing component or an irreversible moisture-absorbing component. However, in some embodiments, the optical machine device 500 may also include a plurality of humidity control components 20, and the plurality of humidity control components 20 are all located inside the sealed cavity 30, which can further improve the efficiency of absorbing moisture in the sealed cavity 30 and improve the humidity control effect.

[0095] In one embodiment, when the optical machine device 500 includes a plurality of humidity control components 20, a part of the plurality of humidity control components 20 may be irreversible moisture-absorbing components and another part may be reversible moisture-absorbing components. In another embodiment, when the optical machine device 500 includes a plurality of humidity control components 20, all of the plurality of humidity control components 20 are irreversible moisture-absorbing components. In yet another embodiment, when the optical machine device 500 includes a plurality of humidity control components 20, all of the plurality of humidity control components 20 are reversible moisture-absorbing components.

[0096] In some embodiments, as Figure 4 shown, the humidity control component 20 may be disposed near the optical modulation device 530 to timely absorb the moisture near the optical modulation device 530 and ensure that condensation does not occur on the surface of the optical modulation device 530. Of course, the humidity control component 20 may not be disposed near the optical modulation device 530.

[0097] Exemplarily, as Figure 4As shown, the first housing 520 may include a front shell 521 and a rear cover 522. The front shell 521 has a first opening 570 and a third opening 590. The lens 510 is disposed at the first opening 570 and connected to the front shell 521. The rear cover 522 is disposed at the third opening 590 and connected to the front shell 521. The front shell 521, the rear cover 522 and the lens 510 jointly enclose a sealed cavity 30.

[0098] In some embodiments, the rear cover 522 includes a first side and a second side opposite to each other along the optical axis direction of the lens 510. The light modulation device 530 and the humidity control member 20 are both disposed on the first side, and the heat dissipation member 40 is disposed on the second side. In this way, the heat dissipation member 40 dissipates heat from the heat generating device 10 in the sealed cavity 30 through the rear cover 522, for example, to the light modulation device 530, so that the temperature of the heat generating device 10 in the sealed cavity 30 is within a reasonable range.

[0099] Among them, the heat dissipation member 40 may be in direct contact (as Figure 4 shown) or indirect contact with the rear cover 522. For example, the optical machine device 500 may further include a heat conducting member (not shown in the figure) located between the heat dissipation member 40 and the rear cover 522, and the rear cover 522 is indirectly in contact with the rear cover 522 through the heat conducting member.

[0100] Among them, the light modulation device 530 may be in direct contact or indirect contact with the rear cover 522. For example Figure 4 shown, the light modulation device 530 is in direct contact with the rear cover 522, which can shorten the heat transfer path between the light modulation device 530 and the heat dissipation member 40, and helps to improve the heat dissipation effect of the light modulation device 530.

[0101] Among them, the humidity control member 20 may be in direct or indirect contact with the rear cover 522. For example Figure 4 shown, the humidity control member 20 is in direct contact with the rear cover 522.

[0102] Exemplarily, as Figure 4 shown, the heat dissipation member 40 is a liquid cooling plate. The liquid cooling plate includes a first plate body 41 and a second plate body 42 having a liquid inlet 45 and a liquid outlet 44. The first plate body 41 and the second plate body 42 enclose a receiving cavity 43 for receiving a cooling medium (such as Figure 4 the dotted arrow in the figure). The low-temperature cooling medium enters the inside of the receiving cavity 43 through the liquid inlet 45. After absorbing the heat generated by devices such as the heat generating device 10 in the sealed cavity 30, the low-temperature cooling medium becomes a high-temperature cooling medium, and the high-temperature cooling medium leaves the receiving cavity 43 through the liquid outlet 44.

[0103] The liquid cooling plate is used to dissipate heat from the heat-generating devices 10 such as the optical modulation device 530 and the light source 540, which can timely take away the heat generated by the heat-generating devices 10, enabling the optical engine device 500 to have parameters such as high power, high resolution, and high brightness, and improving the performance of the optical engine device 500.

[0104] In some possible implementation manners, such as Figure 4 As shown, the liquid inlet 45 and the liquid outlet 44 of the liquid cooling plate can be located outside the lamp housing 600. In this way, when the cooling medium leaks from the liquid outlet 44 and the liquid inlet 45, the cooling medium will not leak into the inside of the lamp housing 600, and will not affect the devices inside the lamp housing 600, which can further improve the reliability of the vehicle headlamp device 200.

[0105] In some possible implementation manners, such as Figure 4 As shown, the connection part of the first plate body 41 and the second plate body 42 can be located outside the lamp housing 600. In this way, when the cooling medium leaks from the connection part of the first plate body 41 and the second plate body 42, the cooling medium will not leak into the inside of the lamp housing 600, and will not affect the devices inside the lamp housing 600, which can further improve the reliability of the vehicle headlamp device 200.

[0106] In summary, by placing the leakage point on the liquid cooling plate outside the lamp housing 600, when the cooling medium leaks through the leakage point, it will not enter the inside of the lamp housing 600 and will not affect the devices inside the lamp housing 600, which can further improve the reliability of the vehicle headlamp device 200.

[0107] In the above content, the heat dissipation member 40 is a liquid cooling plate. However, the heat dissipation member 40 can also be other structures. For example, the heat dissipation member 40 can also be a thermoelectric cooler (TEC). At this time, the cold end of the thermoelectric cooler is close to the rear cover 522, and the hot end of the thermoelectric cooler faces away from the rear cover 522.

[0108] It should be noted that when the heat dissipation member 40 is a thermoelectric cooler, the optical engine device 500 can also include heat dissipation elements such as a liquid cooling plate and a finned radiator, and these heat dissipation elements can be used to dissipate heat from the thermoelectric cooler and / or from the heat-generating devices 10 of the optical modulation device. In addition, in addition to Figure 4 dissipating heat from the optical modulation device through the heat dissipation solution shown, the optical modulation device can also be dissipated heat through other heat dissipation solutions, which will not be elaborated here one by one.

[0109] In the above content, the heat dissipation member 40 is located outside the sealed cavity 30. However, in some scenarios, the heat dissipation member 40 can also be located inside the sealed cavity 30.

[0110] In the above content, the sealed cavity 30 is formed by the lens 510 and the first housing 520, and the heat dissipation member 40 is located outside the sealed cavity 30. However, in some scenarios, the heat dissipation member 40 can also be used to form a part of the cavity wall of the sealed cavity 30.

[0111] Figure 5 It is a schematic cross-sectional view of another vehicle headlight device provided by an embodiment of the present application.

[0112] Figure 5 Compared with Figure 4 , the difference is that the heat dissipation member 40 replaces the rear cover 522, and the first housing 520 is replaced by the second housing 560. Specifically, as Figure 5 shown, the optical engine device 500 includes a second housing 560. The second housing 560 has a first opening 570 and a second opening 580. The lens 510 is disposed at the first opening 570, and the heat dissipation member 40 is disposed at the second opening 580. The lens 510, the second housing 560, and the heat dissipation member 40 together enclose the sealed cavity 30. In this way, the heat dissipation member 40 forms a part of the cavity wall of the sealed cavity 30, which can shorten the heat transfer path between the heat dissipation member 40 and the heat generating device 10 in the sealed cavity 30, thereby improving the heat dissipation effect of the heat dissipation member 40.

[0113] Exemplarily, as Figure 5 shown, the optical modulation device 530 and the humidity control member 20 can be attached to the surface of the heat dissipation member 40, which can further improve the heat dissipation ability of the optical modulation device 530 and can timely absorb the moisture near the heat dissipation member 40, contributing to further improving the reliability of the optical modulation device 530.

[0114] It should be noted that, as Figure 5 shown, in addition to being attached to the surface of the heat dissipation member 40, the optical modulation device 530 can also be indirectly connected to the surface of the heat dissipation member 40. Similarly, in addition to being attached to the surface of the heat dissipation member 40, the humidity control member 20 can also be indirectly connected to the surface of the heat dissipation member 40.

[0115] Exemplarily, as Figure 5 shown, the heat dissipation member 40 can be a liquid cooling plate. However, in some embodiments, the heat dissipation member 40 can also be a thermoelectric cooler. Whether the heat dissipation member 40 is a liquid cooling plate or a thermoelectric cooler, it can timely take away the heat generated by the heat generating device 10 in the sealed cavity 30, enabling the optical engine device 500 to have parameters such as high power, high resolution, and high brightness, and improving the performance of the optical engine device 500.

[0116] In summary, the sealed cavity 30 can be formed by the lens 510 and the first housing 520, or, alternatively, the sealed cavity 30 can also be formed by the lens 510, the second housing 560, and the heat sink 40. However, when the heat sink 40 participates in forming the sealed cavity 30, the heat dissipation effect can be further improved, and the number of parts of the optical engine device 500 can be reduced.

[0117] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, or an indirect connection through an intermediate medium, or the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0118] The device or element referred to in the embodiments of the present application or implied must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically and precisely specified.

[0119] The terms "first", "second", "third", "fourth", etc. (if any) in the description of the embodiments of the present application, the claims, and the above drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0120] The term "a plurality of" herein refers to two or more. The term "and / or" herein merely describes the associated relationship of associated objects and indicates that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after; in a formula, the character " / " represents a "division" relationship between the associated objects before and after.

[0121] It can be understood that the various numerical numbers involved in the embodiments of the present application are only for the convenience of description and are not used to limit the scope of the embodiments of the present application.

[0122] It should be understood that in the embodiments of the present application, the sequence numbers of the above processes do not indicate the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

Claims

1. An optical-mechanical device (500), characterized in that, It includes a humidity control member (20), a sealed cavity (30), and an optical modulation device (530); Both the optical modulation device (530) and the humidity control member (20) are located inside the sealed cavity (30). The optical modulation device (530) is used to generate a light beam directed to the outside of the sealed cavity (30), and the humidity control member (20) is used to absorb the moisture inside the sealed cavity (30).

2. The optical-mechanical device (500) according to claim 1, characterized in that, The waterproof rating of the sealed cavity (30) is greater than or equal to IPX2.

3. The optical-mechanical device (500) according to claim 1, characterized in that, The humidity control member (20) is an irreversible moisture-absorbing member; or, The humidity control member (20) is a reversible moisture-absorbing member, and the reversible moisture-absorbing member has an absorption state and a release state; When the reversible moisture-absorbing member is in the absorption state, the reversible moisture-absorbing member absorbs the moisture inside the sealed cavity (30); When the reversible moisture-absorbing member is in the release state, the reversible moisture-absorbing member releases moisture into the sealed cavity (30).

4. The optical-mechanical device (500) according to claim 3, characterized in that, The optical machine device (500) includes a plurality of humidity control members (20). A part of the plurality of humidity control members (20) is an irreversible moisture-absorbing member, and another part is a reversible moisture-absorbing member, or all of the plurality of humidity control members (20) are irreversible moisture-absorbing members or reversible moisture-absorbing members.

5. The optical-mechanical device (500) according to any one of claims 1 to 4, characterized in that The optical machine device (500) further includes a lens (510) and a first housing (520); The lens (510) is used to project the light beam generated by the optical modulation device (530) to the outside of the sealed cavity (30); The first housing (520) has a first opening (570). The lens (510) is disposed at the first opening (570), and the first housing (520) and the lens (510) enclose the sealed cavity (30).

6. The optical-mechanical device (500) according to claim 5, characterized in that, The optical machine device (500) further includes a heat dissipation member (40). The heat dissipation member (40) is located outside or inside the sealed cavity (30), and the heat dissipation member (40) is connected to the first housing (520).

7. The optical-mechanical device (500) according to claim 6, characterized in that, The heat dissipation member (40) is located outside the sealed cavity (30). The first housing (520) includes a rear cover (522). The rear cover (522) includes a first side and a second side opposite to each other along the optical axis direction of the lens (510). Both the optical modulation device (530) and the humidity control member (20) are disposed on the first side, and the heat dissipation member (40) is disposed on the second side.

8. The optical-mechanical device (500) according to claim 6, characterized in that, The heat dissipation member (40) is a liquid cooling plate or a thermoelectric cooler.

9. The optical-mechanical device (500) according to any one of claims 1 to 4, characterized in that The optical machine device (500) further includes a lens (510), a second housing (560), and a heat dissipation member (40); The lens (510) is used to project the light beam generated by the optical modulation device (530) to the outside of the sealed cavity (30); The second housing (560) has a first opening (570) and a second opening (580). The lens (510) is disposed at the first opening (570), and the heat dissipation member (40) is disposed at the second opening (580). The lens (510), the second housing (560), and the heat dissipation member (40) jointly enclose the sealed cavity (30).

10. The optical-mechanical device (500) according to claim 9, characterized in that, The optical modulation device (530) and the humidity control member (20) are attached to the surface of the heat dissipation member (40).

11. The optical-mechanical device (500) according to claim 9, characterized in that, The heat dissipation member (40) is a liquid cooling plate or a thermoelectric cooler.

12. The optical-mechanical device (500) according to any one of claims 1 to 4, characterized in that, The optical engine device (500) further includes a light source (540), at least a part of the light source (540) is disposed inside the sealed cavity (30), the light source (540) is configured to emit a light beam directed to the optical modulation device (530), and the optical modulation device (530) is configured to generate an imaging light beam and / or an illumination light beam directed to the outside of the sealed cavity (30) according to the light beam emitted by the light source (540); and / or, The optical engine device (500) further includes a reflection element (550), the reflection element (550) is located inside the sealed cavity (30), and the reflection element (550) is configured to reflect the light beam emitted by the light source (540) to the optical modulation device (530).

13. The optical-mechanical device (500) according to any one of claims 1 to 4, characterized in that, The optical modulation device (530) is a liquid crystal on silicon, a digital micromirror device or a microelectromechanical system.

14. A vehicle lamp device (200), characterized in that, It includes a lamp housing (600) and the optical engine device (500) according to any one of claims 1 to 13, and at least a part of the optical engine device (500) is disposed inside the lamp housing (600).

15. The headlight device (200) according to claim 14, characterized in that, The optical engine device (500) includes a heat dissipation member (40), the heat dissipation member (40) is a liquid cooling plate, and the liquid inlet (45) and the liquid outlet (44) of the liquid cooling plate are located outside the lamp housing (600).

16. The headlight device (200) according to claim 15, characterized in that, The liquid cooling plate includes a first plate body (41) and a second plate body (42) having the liquid inlet (45) and the liquid outlet (44), the first plate body (41) and the second plate body (42) enclose a receiving cavity (43), and the connection portion of the first plate body (41) and the second plate body (42) is located outside the lamp housing (600).

17. A vehicle (100), characterized in that, It includes a vehicle headlamp device (200) according to any one of claims 14 to 16.

18. The vehicle (100) according to claim 17, characterized in that, The vehicle (100) further includes a liquid cooling circuit system (300), the vehicle headlamp device (200) includes a liquid cooling plate, the liquid inlet (45) and the liquid outlet (44) of the liquid cooling plate are respectively connected to the liquid cooling circuit system (300), and the liquid cooling circuit system (300) includes a radiator (340) configured to cool the cooling medium in the liquid cooling circuit system (300).

19. The vehicle (100) according to claim 18, characterized in that, The liquid cooling plate is connected in series with the liquid cooling circuit system (300), or the liquid cooling plate is connected in parallel with the liquid cooling circuit system (300).

20. The vehicle (100) according to claim 18 or 19, characterized in that, The vehicle (100) further includes a flow regulating valve connected between the liquid cooling plate and the liquid cooling circuit system (300).

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