Projection device and vehicle

Abstract

The utility model provides a projection device and a vehicle, the projection device comprises a partition plate, a light source assembly, a heat dissipation assembly, a shell and a lens, the light source assembly is connected to one side of the partition plate, and the light source assembly is used for emitting image light. Part of the heat dissipation assembly is located on the side, away from the light source assembly, of the partition plate, and the other part penetrates through the partition plate to make contact with the light source assembly. The shell is connected to the side, provided with the light source assembly, of the partition plate and covers the light source assembly. The lens is installed on the shell and used for receiving the image light emitted by the light source assembly and refracting the image light. According to the embodiment of the invention, the heat dissipation performance of the projection device can be improved, so that the projection device cannot generate obvious heat accumulation when being used in a scene with relatively strong ambient light.

Description

Technical Field

[0001] This application relates to the field of vehicles, specifically to a projection device and a vehicle. Background Technology

[0002] Currently, vehicles are equipped with projection devices to meet users' entertainment needs. When the projection device is used during the day...

[0003] High ambient light intensity greatly affects the projected image quality. Ambient light reduces the contrast and clarity of the image, making it difficult for users to observe a clear and vivid image, thus impacting their visual experience.

[0004] To improve the display quality of projected images during the day, specifications such as the luminous flux of the projector are typically increased. However, increasing the luminous flux leads to increased power consumption and heat dissipation pressure on the projector. Therefore, improving the heat dissipation performance of the projector while ensuring good display quality during the day is a pressing issue that needs to be addressed. Utility Model Content

[0005] The embodiments of this application provide a projection device and a vehicle that can improve the heat dissipation performance of the projection device so that the projection device can be used in scenarios with strong ambient light without significant heat accumulation.

[0006] In a first aspect, this application provides a projection device, including a partition, a light source assembly, a heat dissipation assembly, a housing, and a lens. The light source assembly is connected to one side of the partition and is used to emit image light. Part of the heat dissipation assembly is located on the side of the partition away from the light source assembly, while another part of the heat dissipation assembly passes through the partition and contacts the light source assembly. The housing is connected to the side of the partition where the light source assembly is located and covers the light source assembly. The lens is mounted on the housing and is used to receive and refract the image light emitted by the light source assembly.

[0007] In this embodiment, the heat generated by the projection device during operation can be transferred from the light source assembly to the heat dissipation assembly through the partition. The space containing the heat dissipation assembly can be cooled by air or other means, thereby transferring the heat from the projection device to the external environment and preventing heat accumulation on the light source assembly. The performance of the projection device largely depends on the stability and brightness of the light source assembly. If the performance of the light source assembly degrades due to overheating, the quality of the projected image will also be affected, potentially resulting in insufficient brightness, reduced contrast, and other problems. Timely dissipation of heat from the light source assembly ensures that it operates at a stable temperature, thus maintaining a high-quality projected image.

[0008] The partition separates the heat dissipation components from the light source components. The noise from the airflow during heat dissipation is isolated by the partition, preventing excessive noise from being transmitted to the side where the light source components are located. Excessive noise from the projection device can interfere with the user's viewing or overall experience. Reducing noise allows users to focus more on the projected content, enhancing immersion in the viewing or working experience. A low-noise projection device creates a quieter and more comfortable environment for viewing or working.

[0009] The partition can also absorb the heat from the light source components and transfer the heat to the heat dissipation components and the airflow passing through the partition, thereby transferring the heat from the light source components to the external environment of the projection device and preventing the heat from accumulating in the light source components.

[0010] The heat dissipation component is located outside the housing. The shape, size and assembly method of the heat dissipation component are not limited by the housing, which makes it convenient for the heat dissipation component to be structurally designed with the main goal of optimizing heat dissipation efficiency.

[0011] In addition, the outer casing provides effective protection for delicate components such as the light source assembly inside the projection device, preventing damage from external factors such as dust and moisture. At the same time, the casing also serves a supporting function, ensuring the structural stability and durability of the projection device.

[0012] In one possible implementation, the partition has a connection hole that extends through the partition along its thickness, exposing a portion of the surface of the light source assembly. A heat dissipation assembly passes through the connection hole and contacts the light source assembly, with the heat dissipation assembly protruding from the side of the partition away from the light source assembly.

[0013] In this embodiment, since the partition is provided with connection holes, the heat dissipation component can directly contact the light source component through the connection holes, thereby improving the efficiency of heat transfer between the light source component and the heat dissipation component, thus accelerating the heat dissipation process of the light source component and improving the heat dissipation efficiency of the light source component.

[0014] In one possible implementation, the projection device further includes a housing connected to the side of the partition away from the heat dissipation assembly, the housing covering the light source assembly, the housing having a lens aperture penetrating the housing, and a lens mounted in the lens aperture.

[0015] In one possible implementation, at least one heat-conducting structure includes a first segment and a second segment, the first segment and the second segment are bent and connected, the first segment is connected to a partition, at least part of the first segment is located in a connection hole, one end of the second segment is connected to the first segment, the other end of the second segment extends in a direction away from the light source assembly, and the surface of the first segment away from the second segment is in contact with the light source assembly.

[0016] In one possible implementation, the light source assembly includes a light-emitting element and an imaging element. The light-emitting element is in contact with a heat dissipation component, and the imaging element is in contact with the heat dissipation component. The light-emitting element can emit light to the imaging element, and the imaging element receives the light to form image light and propagates the image light to the lens.

[0017] In one possible implementation, the heat dissipation component includes multiple heat-conducting structures spaced apart. One heat-conducting structure passes through a connection hole and contacts the light source component. The extension direction of the heat-conducting structure is inclined relative to the plane where the partition is located.

[0018] In this embodiment, the airflow direction along the surface of the partition is at an angle to the heat-conducting structure. Therefore, during the airflow process, more surfaces of the heat-conducting structure can come into contact with the airflow, thereby increasing the heat dissipation area. A larger heat dissipation area means that more heat can be dissipated more quickly, thereby preventing the light source component from accumulating heat and heating up. As a result, the light source component can still work at normal temperature in working scenarios that provide large luminous flux and high brightness.

[0019] In one possible implementation, the heat dissipation assembly further includes a cover plate connected to the end of the heat-conducting structure away from the light source assembly, with the cover plate and the partition plate spaced apart and opposite each other.

[0020] In this embodiment, an airflow channel can be formed between the cover plate and the partition plate. The airflow between the cover plate and the partition plate can come into contact with the heat-conducting structure, thereby carrying away the heat from the heat-conducting structure.

[0021] In addition, the cover plate can cover the heat-conducting structure, forming a physical barrier that helps the structure resist various impacts and collisions from the outside. The cover plate can absorb heat from the heat-conducting structure to a certain extent and exchange heat with the outside environment, guiding heat to dissipate more effectively.

[0022] In one possible implementation, the heat dissipation assembly further includes a first grille and a second grille, which are connected to opposite sides of the cover plate. The first grille is used to allow airflow to flow into the space between the cover plate and the partition, and the second grille is used to allow airflow to flow out between the cover plate and the partition.

[0023] In this embodiment, the first and second grilles can prevent larger foreign objects, such as stones and leaves, from entering between the cover plate and the partition, thereby avoiding damage to the heat-conducting structure and other heat dissipation components.

[0024] In one possible implementation, the heat dissipation assembly further includes a motor connected to the side of the partition away from the light source assembly. The motor is electrically connected to the first grille and the second grille, and the motor is capable of controlling the opening and closing of the first grille and the second grille.

[0025] In this embodiment, the motor can control the opening and closing of the first and second grilles. When the projection device is needed, the motor can control the opening of the first and second grilles, allowing airflow to flow through the first grille into the space between the cover plate and the partition. After the airflow passes through the heat-conducting structure...

[0026] In one possible implementation, the heat dissipation assembly further includes a fan located between the cover plate and the partition plate, with the fan positioned on the side of the heat-conducting structure facing the second grille, and the fan's air outlet facing the second grille.

[0027] In this embodiment, the fan guides the airflow in a directional direction, ensuring that cool air enters through the first grille and exits through the second grille. This ensures that the airflow passes through the heat-conducting structure. This directional heat dissipation method improves heat dissipation efficiency, reduces heat accumulation, and helps maintain the normal operating temperature of the light source components.

[0028] Placing the fan close to the second grille can also prevent the fan from coming into contact with small foreign objects carried by the airflow entering from the first grille, thus preventing the fan from being affected by foreign objects and failing to rotate properly, and ensuring the normal operation of the fan.

[0029] In one possible implementation, the projection device further includes a screen, which is positioned opposite and spaced apart from the lens.

[0030] Secondly, this application provides a vehicle, including a vehicle body and a projection device as described above. The vehicle body is provided with a first mounting opening that extends through the vehicle body and connects the interior and exterior of the vehicle body. A partition is sealed to the periphery of the first mounting opening. A heat dissipation assembly is located on the side of the partition facing the exterior of the vehicle. A light source assembly and a lens are located on the side of the partition facing the interior of the vehicle.

[0031] Furthermore, during vehicle operation, airflow typically flows from the front of the vehicle along the body to the rear. The faster the vehicle speed, the faster the airflow relative to the vehicle. The cooling system, exposed to this airflow, can have its heat carried away by the high-speed airflow, thus effectively transferring heat from the light source components to the external environment and preventing heat buildup that could affect their performance.

[0032] Furthermore, placing the heat dissipation components of the projection device on the exterior of the vehicle reduces the space occupied by the device within the vehicle's interior. This prevents the projection device from interfering with passengers' normal seating space. The reduced size of the projection device within the vehicle also allows for a more subtle visual effect, enhancing the overall aesthetics of the interior.

[0033] In one possible implementation, the vehicle body has a receiving groove recessed from the outer surface of the vehicle body. A first mounting opening penetrates the bottom wall of the receiving groove, and the opening of the receiving groove on the outer surface of the vehicle body serves as a second mounting opening. The projection device also includes a cover plate, a first grille, and a second grille. The cover plate is connected to the end of the heat-conducting structure opposite to the light source assembly. The cover plate and the partition are spaced apart and opposite to each other. The first grille and the second grille are connected to opposite sides of the cover plate. The first grille, the second grille, and the cover plate cover the second mounting opening, and the cover plate is flush with the outer surface of the vehicle body.

[0034] In this embodiment, the heat dissipation component can be located outside the vehicle, while the light source component can be located inside the vehicle. Therefore, the noise generated by airflow or other heat transfer methods during the heat dissipation process is minimally transmitted into the vehicle interior, allowing for a low-noise environment to be maintained inside the vehicle when passengers are using the projection device.

[0035] The hood being flush with the vehicle's outer surface allows for a smoother exterior. A smooth exterior significantly reduces wind resistance, guiding airflow more smoothly over the vehicle and minimizing energy loss.

[0036] Furthermore, too many protruding structures can disrupt the smooth lines of the vehicle body, making the vehicle look bulky or out of place. A smooth design, on the other hand, can highlight the streamlined beauty of the vehicle and enhance its overall sense of quality.

[0037] Furthermore, if the cover and heat-conducting structure are designed to be raised, abnormal noises may occur during vehicle operation, while a smooth surface can reduce this unnecessary noise. In addition, a smooth body also makes it easier to implement sound insulation and vibration damping measures, improving ride comfort. Attached Figure Description

[0038] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0039] Figure 1 This is an internal schematic diagram of the vehicle provided in the embodiments of this application;

[0040] Figure 2 yes Figure 1 A partial structural diagram of the vehicle shown;

[0041] Figure 3 yes Figure 2 Another schematic diagram of the projection device shown;

[0042] Figure 4 yes Figure 3A schematic diagram of the projection device from another angle;

[0043] Figure 5 yes Figure 3 A partial cross-sectional schematic diagram of the first embodiment of the projection device shown;

[0044] Figure 6 yes Figure 3 A partial cross-sectional schematic diagram of a second embodiment of the projection device shown;

[0045] Figure 7 yes Figure 3 Another partial cross-sectional schematic diagram of the second embodiment of the projection device shown;

[0046] Figure 8 yes Figure 3 A partial cross-sectional schematic diagram of a third embodiment of the projection device shown;

[0047] Figure 9 yes Figure 3 A partial cross-sectional schematic diagram of the fourth embodiment of the projection device shown;

[0048] Figure 10 yes Figure 2 Another schematic diagram of the projection device shown;

[0049] Figure 11 yes Figure 10 The diagram shows the structure of the first grille in the open state in conjunction with the motor;

[0050] Figure 12 yes Figure 10 The diagram shows the structure of the first grille in its closed state in conjunction with the motor. Detailed Implementation

[0051] The specific embodiments of this application will now be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in other ways different from those described herein, and therefore, this application is not limited to these embodiments.

[0052] For ease of understanding, the terminology used in the embodiments of this application will be explained first.

[0053] Multiple: refers to two or more.

[0054] Connection: should be interpreted broadly. For example, the connection between A and B can be a direct connection between A and B, or an indirect connection between A and B through an intermediary.

[0055] The specific embodiments of this application will now be clearly described in conjunction with the accompanying drawings.

[0056] Please see Figure 1 , Figure 1 This is an internal schematic diagram of a vehicle 1000 provided in an embodiment of this application. The vehicle 1000 includes a vehicle body 100, a projection device 200, and a screen 300. The projection device 200 is mounted on the vehicle body 100. The projection device 200 is used to project images inside the vehicle 1000. The screen 300 is located inside the vehicle and is used to receive image light emitted from the projection device 200 and project an image. Wherein, the X direction is the width direction of the vehicle 1000, the Y direction is the length direction of the vehicle 1000, and the Y direction is also the forward direction of the vehicle 1000. For ease of description, the Y direction is defined as the first direction of the vehicle 1000. The Z direction is the height direction of the vehicle 1000.

[0057] The vehicle body 100 includes side sheet metal 110 and roof sheet metal 120. Side sheet metal 110 consists of the left and right side sheet metals in the forward direction of the vehicle 1000. Roof sheet metal 120 is connected to side sheet metal 110. Roof sheet metal 120 is connected to the side of side sheet metal 110 facing the Z direction.

[0058] Please refer to the following: Figure 2 , Figure 2 yes Figure 1 The diagram shows a partial structural schematic of the vehicle 1000. The roof sheet metal 120 is provided with a first mounting opening 121, which extends through the roof sheet metal 120 along the Z direction and connects the interior of the vehicle body 100 and the exterior of the vehicle body 100.

[0059] In one embodiment, the roof sheet metal 120 is provided with a receiving groove 123, which is recessed from the outer surface of the roof sheet metal 120 along the Z direction into the interior of the vehicle body 100. The opening of the receiving groove 123 on the outer surface of the vehicle body 100 is a second mounting opening 122. A first mounting opening 121 penetrates the bottom wall of the receiving groove 123 along the Z direction, wherein the bottom wall of the groove is opposite to the second mounting opening 122.

[0060] Currently, vehicles can be equipped with projection devices to meet users' entertainment needs. However, when using projection devices during the day, the high intensity of ambient light greatly affects the projected image quality. Ambient light reduces the contrast and clarity of the image, making it difficult for users to observe a clear and vivid picture, thus impacting their visual experience.

[0061] To improve the display effect of the projected image during the day, the specifications of the projector 200 are generally increased, such as by increasing the luminous flux. However, increasing the luminous flux will increase the power consumption of the projector 200 and increase the heat dissipation pressure.

[0062] Based on this, embodiments of this application provide a projection device 200 that can improve the heat dissipation performance of the projection device 200, so that the projection device 200 can be used in scenarios with strong ambient light without significant heat accumulation.

[0063] Please refer to the following: Figure 2 The projection device 200 includes a partition 210, a seal 220, a light source assembly 230, a housing 240, a lens 250, a heat dissipation assembly 260, a cover 270, a first grille 280, a second grille 290, and a fan 310. The partition 210 is connected to the roof sheet metal 120 and sealed by the seal 220. The light source assembly 230 and the housing 240 are both connected to the side of the partition 210 facing inwards. The heat dissipation assembly 260, the cover 270, the first grille 280, the second grille 290, and the fan 310 are all mounted on the side of the partition 210 facing outwards. The heat dissipation assembly 260 and the fan 310 are located in a receiving groove 123. The cover 270 covers the second mounting opening 122 of the receiving groove 123. The first grille 280 and the second grille 290 are located between the cover 270 and the roof sheet metal 120 surrounding the second mounting opening 122. When the roof sheet 120 does not have a receiving groove 123, the heat dissipation component 260, cover plate 270, first grille 280, second grille 290, and fan 310 are located outside the roof sheet 120, that is, protruding from the top of the vehicle 1000, and a shell can be installed to protect the projection device 200.

[0064] It should be noted that, Figure 2 The purpose of this illustration is merely to demonstrate the connection relationship of the partition 210, seal 220, light source assembly 230, housing 240, lens 250, heat dissipation assembly 260, cover 270, first grille 280, second grille 290, and fan 310, and is not to specifically limit the connection position, specific structure, or quantity of each device. Furthermore, the structure illustrated in this embodiment does not constitute a specific limitation on the projection device 200.

[0065] In this embodiment, the seal 220 may cover the periphery of the first mounting opening 121.

[0066] The partition 210 is sealed to the periphery of the first mounting opening 121 by a seal 220. Exemplarily, the partition 210 and the seal 220 abut against the side facing inwards from the vehicle interior, thereby sealingly connecting to the roof sheet metal 120. The partition 210 can be made of a material with high thermal conductivity and excellent corrosion resistance, such as metal. A light source assembly 230 is connected to the side of the partition 210 facing inwards from the vehicle interior. The light source assembly 230 is used to emit image light.

[0067] In this embodiment, the partition 210 separates the heat dissipation assembly 260 from the light source assembly 230. The noise from the airflow during heat dissipation by the heat dissipation assembly 260 is isolated by the partition 210, thus preventing excessive noise transmission to the side where the light source assembly 230 is located. Excessive noise generated by the projection device 200 during use can interfere with the user's viewing or usage experience. Reducing noise allows the user to focus more on the projected content, enhancing the immersion in viewing or working. A low-noise projection device 200 can create a quieter and more comfortable viewing or working environment for the user.

[0068] The partition 210 can also absorb the heat of the light source assembly 230 and transfer the heat to the heat dissipation assembly 260 and the airflow passing through the partition 210, thereby transferring the heat of the light source assembly 230 to the external environment of the projection device 200 and preventing the heat of the light source assembly 230 from accumulating.

[0069] For example, the light source assembly 230 can be a light source device capable of emitting image light with a large luminous flux and high brightness. For example, the light source assembly 230 can be connected to the partition 210 through a thermally conductive material layer 320, so that the heat generated by the light source assembly 230 can be transferred to the partition 210 more efficiently.

[0070] In this embodiment, the image light emitted by the light source component 230 can present a high-brightness projected image when it reaches the screen 300, so that the projected image can be used in scenes with strong ambient light.

[0071] In addition, the increased luminous flux and brightness of the light source component 230 lead to an increase in the power consumption of the light source component 230, which in turn leads to a corresponding increase in the amount of electrical energy converted into heat energy, resulting in an increase in the temperature of the light source component 230.

[0072] The heat from the light source assembly 230 can be transferred to the partition 210. Since the partition 210 faces away from the surface of the light source assembly 230 and towards the outside of the vehicle, during the movement of the vehicle 1000, airflow will pass through the partition 210 away from the surface of the light source assembly 230, thereby carrying away heat. This allows the heat from the light source assembly 230 to be transferred to the external environment through the partition 210, improving the heat dissipation efficiency of the light source assembly 230.

[0073] The housing 240 is connected to the side of the partition 210 facing the interior of the vehicle, and the housing 240 covers the light source assembly 230. The housing 240 has a lens hole 241 that extends through the housing 240. The lens 250 is mounted in the lens hole 241.

[0074] In this embodiment, the housing 240 provides effective protection for precision components such as the light source assembly 230 inside the projection device 200, preventing damage from external factors such as dust and moisture. Simultaneously, the housing 240 also serves a supporting function, ensuring the structural stability and durability of the projection device 200.

[0075] For example, lens 250 may be positioned opposite light source assembly 230 in the Y direction. Lens 250 is used to allow image light from light source assembly 230 to pass through.

[0076] In this embodiment, lens 250 is responsible for magnifying the image generated by light source assembly 230 and accurately projecting it onto screen 300. Lens 250 may contain multiple lens assemblies, which control the propagation and focusing of light through different shapes and curvatures. They ensure that the image light emitted from light source assembly 230 is focused onto the desired screen 300, thereby forming a clear image.

[0077] The heat dissipation component 260 is located on the side of the partition 210 facing outwards. That is, the heat dissipation component 260 is located on the side of the partition 210 facing away from the vehicle. The heat dissipation component 260 can be located within the receiving groove 123 of the roof sheet metal 120.

[0078] In this embodiment, the heat generated by the projection device 200 during operation can be transferred from the light source assembly 230 through the partition 210 to the heat dissipation assembly 260. The space where the heat dissipation assembly 260 is located can be cooled by air or other means, thereby transferring the heat of the projection device 200 to the external environment and preventing heat accumulation on the light source assembly 230. The performance of the projection device 200 largely depends on the stability and brightness of the light source assembly 230. If the performance of the light source assembly 230 degrades due to overheating, the quality of the projected image will also be affected, potentially resulting in insufficient brightness, reduced contrast, and other problems. Timely dissipation of heat from the light source assembly 230 ensures that it operates at a stable operating temperature, thereby maintaining a high-quality projected image.

[0079] The heat dissipation component 260 can be located on the exterior of the vehicle 1000. The light source component 230 can be located inside the vehicle 1000. Therefore, the noise generated by airflow or other heat transfer methods during the heat dissipation process of the heat dissipation component 260 will not be transmitted into the vehicle interior, so that a low-noise environment can be maintained inside the vehicle when passengers use the projection device 200.

[0080] Furthermore, during vehicle 1000's operation, airflow typically flows from the front of vehicle 1000 along the vehicle body towards the rear. The faster the vehicle speed, the faster the airflow relative to vehicle 1000. The cooling device, exposed to the airflow, can have its heat carried away by the high-speed airflow, thus effectively transferring the heat from the light source assembly 230 to the external environment and preventing heat accumulation in the light source assembly 230 from affecting its performance.

[0081] Furthermore, by placing the heat dissipation component 260 of the projection device 200 on the exterior of the vehicle 1000, the overall space occupied by the projection device 200 inside the vehicle can be reduced. This avoids the use of the projection device 200 interfering with the normal seating space of passengers inside the vehicle. The reduced size of the projection device 200 inside the vehicle allows for a more indirect visual effect, thereby improving the overall aesthetics of the vehicle interior.

[0082] The heat dissipation component 260 is located outside the housing 240. The shape, size and assembly method of the heat dissipation component 260 are not limited by the housing 240, which makes it convenient for the heat dissipation component 260 to be structurally designed with the main goal of optimizing heat dissipation efficiency.

[0083] For some possible implementations, please refer to Figure 3 , Figure 3 yes Figure 2 The diagram shows another structural schematic of the projection device 200. The partition 210 also has multiple connection holes 211, which penetrate the partition 210 along its thickness direction, exposing a portion of the surface of the light source assembly 230. A heat dissipation assembly 260 passes through the connection holes 211 and contacts the light source assembly 230. The heat dissipation assembly 260 protrudes from the side of the partition 210 opposite to the light source assembly 230.

[0084] In this embodiment, since the partition 210 is provided with a connection hole 211, the heat dissipation component 260 can directly contact the light source component 230 through the connection hole 211, thereby improving the efficiency of heat transfer between the light source component 230 and the heat dissipation component 260, thereby accelerating the heat dissipation process of the light source component 230 and improving the heat dissipation efficiency of the light source component 230.

[0085] For example, please refer to Figure 4 , Figure 4 yes Figure 3The diagram shows a partial structural view of the projection device 200 from another angle. The heat dissipation assembly 260 includes multiple heat-conducting structures 261, spaced apart. One heat-conducting structure 261 passes through a connecting hole 211 and contacts the light source assembly 230. The extending direction of the heat-conducting structure 261 is inclined relative to the plane containing the partition 210. The heat-conducting structure 261 can extend along the Z-direction, and the plane containing the partition 210 can be a plane containing both the X and Y directions. The heat-conducting structure 261 can be a heat dissipation device such as a heat pipe.

[0086] In this embodiment, the airflow direction along the surface of the partition 210 is at an angle to the heat-conducting structure 261. Therefore, during the airflow process, more of the surface of the heat-conducting structure 261 can come into contact with the airflow, thereby increasing the heat dissipation area. A larger heat dissipation area means that more heat can be dissipated more quickly, thereby preventing the light source component 230 from accumulating heat and heating up. As a result, the light source component 230 can still work at normal temperature in working scenarios that provide a large luminous flux and high brightness.

[0087] Please refer to the following: Figure 3 The heat dissipation assembly 260 may also have multiple fins 202. The multiple fins 202 are located between the partition plate 210 and the cover plate 270. The multiple fins 202 can be stacked in the Z direction, and adjacent fins 202 are spaced apart. Each fin 202 has a through hole 203, through which the heat-conducting structure 261 can pass. The wall of the through hole 203 contacts the periphery of the heat-conducting structure 261. For example, the fins 202 can be made of materials with high thermal conductivity and excellent corrosion resistance, such as metal.

[0088] In this embodiment, the fins 202 can increase the contact area between the heat dissipation component 260 and the airflow, thereby improving the heat dissipation efficiency.

[0089] This application also provides various ways in which the heat-conducting structure 261 and the light source assembly 230 are combined, to illustrate the shape of the heat-conducting structure 261 and the structural shape of the light source assembly 230.

[0090] In the first possible embodiment, please refer to Figure 5 , Figure 5 yes Figure 3 The diagram shows a partial cross-sectional view of the first embodiment of the projection device 200. The heat-conducting structure 261 is strip-shaped. The heat-conducting structure 261 passes through the partition 210 and extends along the Z direction. The two ends of the heat-conducting structure 261 protrude from the sides of the partition 210.

[0091] The light source assembly 230 includes a light-emitting element 231 and an imaging element 232. The light-emitting element 231 emits light to the imaging element 232. The imaging element 232 receives the light from the light-emitting element 231 to form image light and propagates it toward the lens 250.

[0092] The light-emitting element 231 can be connected to a heat-conducting structure 261 on the side facing the lens 250. The imaging element 232 can be connected to another heat-conducting structure 261 on the side facing the lens 250. The light-emitting element 231 and the imaging element 232 are spaced apart along the Y direction. The light-emitting element 231 is located on the side of the imaging element 232 facing away from the lens 250. Alternatively, the light-emitting element 231 is located on the side of the imaging element 232 facing the lens 250.

[0093] It should be noted that the light-emitting element 231 can contact multiple heat-conducting structures 261. The multiple heat-conducting structures 261 can be arranged at intervals along the X-direction. The imaging element 232 can contact multiple heat-conducting structures 261. The multiple heat-conducting structures 261 can be arranged at intervals along the X-direction.

[0094] The light source assembly 230 can be a Digital Light Processing (DLP) optical architecture. The imaging element 232 can be a Digital Micromirror Device (DMD). The light emitted by the light source 231 can reach the imaging element 232. By controlling the deflection of multiple lenses of the digital micromirror device, the imaging element 232 produces image light with different brightness in different areas. Finally, the image light passes through the lens 250 and forms an image on the screen 300.

[0095] The light-emitting element 231 can be connected to the heat-conducting structure 261 via a thermally conductive material layer 233. Similarly, the imaging element 232 can be connected to the heat-conducting structure 261 via the same thermally conductive material layer 233. The thermally conductive material layer 233 fills the tiny gaps between the light-emitting element 231 and the heat-conducting structure 261, and between the imaging element 232 and the heat-conducting structure 261. The thermally conductive material (such as thermal grease or a thermally conductive phase change material) has high thermal conductivity, effectively transferring the heat generated by the light source assembly 230 to the heat-conducting structure 261, and then dissipating it into the environment. This process optimizes the heat transfer path, reduces contact thermal resistance, and improves heat dissipation efficiency.

[0096] In the second possible embodiment, please refer to Figure 6 , Figure 6 yes Figure 3 The diagram shows a partial cross-sectional view of a second embodiment of the projection device 200. Unlike the first possible embodiment, the heat-conducting structure 261 supporting the light-emitting element 231 can be bent.

[0097] Specifically, a connecting hole 211 on the partition 210 can be an elongated hole. The heat-conducting structure 261 supporting the light-emitting element 231 includes a first segment 2611 and a second segment 2612. The first segment 2611 and the second segment 2612 are bent and connected. The first segment 2611 is located inside the connecting hole 211 and can extend along the Y direction. One end of the second segment 2612 is connected to the first segment 2611, and the other end extends outward along the Z direction.

[0098] The light-emitting element 231 of the light source assembly 230 can be connected to the surface of the partition 210 facing the interior of the vehicle, and the light-emitting element 231 is in contact with the first segment 2611 of the heat-conducting structure 261. For example, the orthogonal projection of the light-emitting element 231 toward the partition 210 covers a portion of the first segment 2611 of the heat-conducting structure 261.

[0099] The projection device 200 may also include a reflector (not shown) that can reflect the light emitted by the light-emitting element 231 toward the imaging element 232.

[0100] In this embodiment, attaching the light-emitting element 231 to the partition 210 can provide more usable space inside the housing of the projection device 200, so as to facilitate the installation of other components of the projection device 200.

[0101] In addition, by setting the heat-conducting structure 261 connecting the light-emitting element 231 to a bent shape, the contact area between the light-emitting element 231 and the heat-conducting structure 261 can be increased, so that the heat of the light-emitting element 231 can be transferred to the heat-conducting structure 261 more effectively, and then dispersed to the outside of the projection device 200 through the heat-conducting structure 261.

[0102] For example, please refer to Figure 7 , Figure 7 yes Figure 3 This is a partial cross-sectional schematic diagram of another embodiment of the projection device 200 shown. The heat-conducting structure 261 supporting the imaging element 232 can be bent. The light-emitting surface of the imaging element 232 can face away from the partition plate 210. The image light from the imaging element 232 can be reflected by a mirror to propagate to the lens 250.

[0103] In the third possible embodiment, please refer to Figure 8 , Figure 8 yes Figure 3 The diagram shows a partial cross-sectional view of a third embodiment of the projection device 200. Unlike the first possible embodiment, there can be multiple light-emitting elements 231. The multiple light-emitting elements 231 emit different colors.

[0104] Specifically, there can be two light-emitting elements 231. Each light-emitting element 231 is connected to a heat-conducting structure 261. For ease of description, the two light-emitting elements 231 are defined as the first light-emitting element 2311 and the second light-emitting element 2312. The heat-conducting structure 261 connected to the first light-emitting element 2311 is defined as the first heat-conducting structure 2613. The heat-conducting structure 261 connected to the second light-emitting element 2312 is defined as the second heat-conducting structure 2614.

[0105] The first heat-conducting structure 2613 can be elongated. The first heat-conducting structure 2613 passes through the partition 210 and extends along the Z direction. The two ends of the heat-conducting structure 2613 protrude from the sides of the partition 210.

[0106] The second heat-conducting structure 2614 can be bent. The second heat-conducting structure 2614 includes a first segment 2611 and a second segment 2612. The first segment 2611 and the second segment 2612 are bent and connected. The first segment 2611 is located inside the connecting hole 211 and can extend along the Y direction. One end of the second segment 2612 is connected to the first segment 2611, and the other end extends outward along the Z direction. The second heat-conducting structure 2614 can be located between the first heat-conducting structure 2613 and the heat-conducting structure 261 connecting the imaging element 232.

[0107] The first light-emitting element 2311 is connected to the first heat-conducting structure 2613, and the first light-emitting element 2311 is located on the side of the partition 210 facing the vehicle interior. The light-emitting surface of the first light-emitting element 2311 can face the imaging element 232. For example, the light-emitting color of the first light-emitting element 2311 can be one or both of red, green and blue.

[0108] The second light-emitting element 2312 is connected to the first segment 2611 of the second heat-conducting structure 2614. The second light-emitting element 2312 is located on the side of the partition 210 facing the vehicle interior. The light-emitting surface of the second light-emitting element 2312 can face away from the partition 210. Light emitted from the light-emitting surface of the second light-emitting element 2312 can be reflected by a reflector structure so that the light can reach the imaging element 232. For example, the light emission color of the second light-emitting element 2312 can be one or both of red, green, and blue. The light emission color of the second light-emitting element 2312 is different from the light emission color of the first light-emitting element 2311. Alternatively, the second light-emitting element 2312 and the first light-emitting element 2311 can be different types of light sources, such as laser and phosphor.

[0109] In this embodiment, since the light-emitting elements 231 of different colors are set separately, users can flexibly adjust parameters such as brightness, contrast, and color through the settings menu to meet different usage scenarios and needs.

[0110] In the fourth possible embodiment, please refer to Figure 9 , Figure 9 yes Figure 3 The diagram shows a partial cross-sectional view of the fourth embodiment of the projection device 200. Unlike the first possible embodiment, the imaging element 232 and the light-emitting element 231 can be connected to the same heat-conducting structure 261.

[0111] Specifically, the heat-conducting structure 261 can be bent. The connecting hole 211 on the partition 210 can be an elongated hole. The heat-conducting structure 261 includes a first segment 2611 and a second segment 2612. The first segment 2611 and the second segment 2612 are bent and connected. The first segment 2611 is located inside the connecting hole 211 and can extend along the Y direction. One end of the second segment 2612 is connected to the first segment 2611, and the other end extends outward along the Z direction.

[0112] The light-emitting element 231 and the imaging element 232 of the light source assembly 230 can be connected to the surface of the partition 210 facing the interior of the vehicle, and both the light-emitting element 231 and the imaging element 232 are in contact with the first section 2611 of the heat-conducting structure 261.

[0113] The projection device 200 may also include a reflector that can reflect the light emitted by the light-emitting element 231 toward the imaging element 232. The imaging element 232 receives the light from the light-emitting element 231 and modulates it into image light, which can be transmitted to the reflector and then propagated toward the lens 250 after being reflected by the reflector.

[0114] Please refer to the following: Figure 3 The cover plate 270 is connected to one end of the plurality of heat-conducting structures 261 opposite to the partition plate 210, and the cover plate 270 and the partition plate 210 are spaced apart and opposite each other. For example, the material of the cover plate 270 can be die-cast aluminum or plastic. The cover plate 270, the partition plate 210 and the fins 202 can be a single integrated structure stacked together. There are channels for airflow between the cover plate 270, the partition plate 210 and the fins 202.

[0115] In this embodiment, an airflow channel can be formed between the cover plate 270 and the partition plate 210. The airflow between the cover plate 270 and the partition plate 210 can come into contact with the heat-conducting structure 261, thereby carrying away the heat of the heat-conducting structure 261.

[0116] In addition, the cover plate 270 can cover the heat-conducting structure 261, forming a physical barrier that helps the heat-conducting structure 261 resist various impacts and collisions from the outside. The cover plate 270 can absorb the heat of the heat-conducting structure 261 to a certain extent and exchange heat with the outside, guiding the heat to dissipate more effectively.

[0117] For one possible implementation, please refer to [link / reference]. Figure 2The cover plate 270 is located within the receiving groove 123. The cover plate 270 can be flush with the outer surface of the vehicle body 100. Along the first direction (Y direction), the first grille 280 and the second grille 290 of the projection device 200 are connected between the cover plate 270 and the edge of the second mounting opening 122.

[0118] In this embodiment, the cover plate 270 is flush with the outer surface of the vehicle body 100, which makes the outer surface of the vehicle 1000 smoother. The smooth outer surface of the vehicle 1000 can significantly reduce wind resistance, thereby guiding airflow more smoothly over the vehicle body and reducing the energy loss of the vehicle 1000.

[0119] Furthermore, too many protruding structures could disrupt the vehicle's smooth lines, making the 1000 appear bulky or disproportionate. A smooth design, on the other hand, would highlight the 1000's streamlined aesthetics and enhance its overall sense of quality.

[0120] Furthermore, if the cover plate 270 and the heat-conducting structure 261 are designed to be raised, the vehicle 1000 may produce abnormal noises during driving, while a smooth surface can reduce this unnecessary noise. In addition, a smooth body also makes it easier to implement sound insulation and vibration reduction measures, improving ride comfort.

[0121] The first grille 280 is located on the side of the cover plate 270 facing the Y direction. One side of the first grille 280 is connected to the edge of the cover plate 270. The other edges of the first grille 280 can be connected to the edge of the second mounting opening 122 of the roof sheet 120. The first grille 280 is used to allow airflow to flow between the cover plate 270 and the partition 210. The first grille 280 can be opened or closed.

[0122] The second grille 290 is located on the side of the cover plate 270 facing the opposite direction in the Y direction. One side of the second grille 290 is connected to the edge of the cover plate 270. The other edges of the second grille 290 can be connected to the edge of the second mounting opening 122 of the roof sheet 120. The second grille 290 is used for airflow between the cover plate 270 and the partition 210. For example, along the Y direction, the first grille 280 and the second grille 290 are located on opposite sides of the cover plate 270. The second grille 290 can be opened or closed.

[0123] In this embodiment, the first grille 280 and the second grille 290 can prevent larger foreign objects, such as stones and leaves, from entering between the cover plate 270 and the partition plate 210, thereby avoiding damage to the heat-conducting structure 261 and other heat dissipation components.

[0124] For some possible implementation methods, please refer to the following: Figure 10 , Figure 11 and Figure 12 , Figure 10 yes Figure 2 Another schematic diagram of the projection device 200 shown. Figure 11 yes Figure 10 The diagram shows the structure of the first grille 280 in the open state in cooperation with the motor 262. Figure 12 yes Figure 10 The diagram shows the structure of the first grille 280 in its closed state in cooperation with the motor 262. The heat dissipation assembly 260 also includes a motor 262, which is connected to the side of the partition 210 away from the light source assembly 230. The motor 262 is electrically connected to the first grille 280 and the second grille 290, and can control the opening and closing of the first grille 280 and the second grille 290. Alternatively, there can be two motors 262, which can control the opening or closing of the first grille 280 and the second grille 290 respectively.

[0125] In this embodiment, the motor 262 can control the opening and closing of the first grille 280 and the second grille 290. When the projection device 200 is needed, the motor 262 can control the first grille 280 and the second grille 290 to open, so that the airflow flows through the first grille 280 into the space between the cover plate 270 and the partition plate 210. After the airflow passes through the heat-conducting structure 261, the airflow can carry away the heat of the heat-conducting structure 261 and flow out from the second grille 290, so that the heat of the heat dissipation component 260 is dispersed to the outside of the vehicle 1000.

[0126] The fan 310 is located between the cover plate 270 and the partition plate 210. The fan 310 is located on the side of the heat conduction structure 261 facing the second grille 290, and the air outlet of the fan 310 faces the second grille 290.

[0127] In this embodiment, the fan 310 guides the airflow in a directional manner, ensuring that cool air enters from the first grille 280 and exits from the second grille 290. This also ensures that the airflow passes through the heat-conducting structure 261. This directional heat dissipation method improves heat dissipation efficiency, reduces heat accumulation, and helps maintain the normal operating temperature of the light source assembly 230.

[0128] Setting the fan 310 close to the second grille 290 can also prevent the fan 310 from coming into contact with small foreign objects carried by the airflow entering from the first grille 280, thus preventing the fan 310 from being affected by foreign objects and unable to rotate normally, and ensuring the normal operation of the fan 310.

[0129] Please refer to the following: Figure 1 The screen 300 is located inside the vehicle. For example, the screen 300 can be installed on the vehicle's ceiling. When the screen 300 is unfolded, it can hang from the roof to receive image light emitted from the lens 250 of the projection device 200 to form an image. Alternatively, the screen 300 can be rolled up to the roof position.

[0130] When the screen 300 is in the unfolded state, it can be located behind the driver's or passenger's seat and in front of the rear seats. The projection device 200 can be located on the roof corresponding to the rear seats. Alternatively, the projection device 200 can be located on the B-pillar, C-pillar, or at the connection point between the roof panel 120 and the side panel 110 of the vehicle 1000. The screen 300 can receive the image light emitted by the projection device 200 and project an image.

[0131] Please refer to the following: Figure 2 The vehicle may also be equipped with a drain pipe. The drain pipe can pass through the roof panel of the vehicle body. Alternatively, the drain pipe can pass between the seal and the body panel. The drain pipe connects to a receiving recess. The drain pipe can extend along the side panel of the vehicle body. The drain pipe can drain water accumulated in the receiving recess during rain, car washes, or condensation processes.

[0132] The above are exemplary embodiments of this application. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principles of this application, and these improvements and modifications are also considered to be within the scope of protection of this application.

Claims

1. A projection device, characterized in that, include: partition; A light source assembly, connected to one side of the partition, is used to emit image light; The heat dissipation assembly has a portion located on the side of the partition away from the light source assembly, and another portion passing through the partition and contacting the light source assembly. A housing, the housing being connected to the side of the partition where the light source assembly is located, the housing covering the light source assembly; The lens is mounted on the housing and is capable of receiving the image light and refracting the image light.

2. The projection device according to claim 1, characterized in that, The partition is provided with a connection hole that penetrates the partition along its thickness direction and exposes a portion of the surface of the light source assembly. The heat dissipation component passes through the connection hole and contacts the light source component. The heat dissipation component protrudes from the side of the partition away from the light source component.

3. The projection device according to claim 2, characterized in that, The heat dissipation component includes multiple heat-conducting structures, which are spaced apart. One heat-conducting structure passes through a connection hole and contacts the light source component. The extension direction of the heat-conducting structure is inclined relative to the plane where the partition is located.

4. The projection device according to claim 3, characterized in that, At least one of the heat-conducting structures includes a first segment and a second segment, the first segment and the second segment being bent and connected, the first segment being connected to the partition, at least a portion of the first segment being located within the connection hole, one end of the second segment being connected to the first segment, the other end of the second segment extending away from the light source assembly, and the surface of the first segment away from the second segment contacting the light source assembly.

5. The projection device according to any one of claims 1-4, characterized in that, The light source assembly includes a light-emitting element and an imaging element. The light-emitting element is in contact with the heat dissipation assembly, and the imaging element is in contact with the heat dissipation assembly. The light-emitting element can emit light to the imaging element, and the imaging element receives the light to form the image light and propagates the image light to the lens.

6. The projection device according to claim 3, characterized in that, The heat dissipation component also includes a cover plate, which is connected to the end of the heat-conducting structure away from the light source component, and the cover plate is spaced apart from the partition plate.

7. The projection device according to claim 6, characterized in that, The heat dissipation assembly further includes a first grille and a second grille, which are connected to opposite sides of the cover plate. The first grille is used to allow airflow to flow into the space between the cover plate and the partition plate, and the second grille is used to allow airflow to flow out between the cover plate and the partition plate.

8. The projection device according to claim 7, characterized in that, The heat dissipation assembly also includes a motor connected to the side of the partition away from the light source assembly. The motor is electrically connected to the first grille and the second grille, and the motor is capable of controlling the opening and closing of the first grille and the second grille.

9. The projection device according to claim 7 or 8, characterized in that, The heat dissipation assembly also includes a fan, which is located between the cover plate and the partition plate. The fan is located on the side of the heat-conducting structure facing the second grille, and the air outlet of the fan faces the second grille.

10. A vehicle, characterized in that, The device includes a vehicle body and a projection device as described in any one of claims 1-9, wherein the vehicle body has a first mounting opening that extends through the vehicle body and connects the interior and exterior of the vehicle body, a partition is sealed to the periphery of the first mounting opening, a heat dissipation assembly is located on the side of the partition facing the exterior of the vehicle, and a light source assembly and a lens are located on the side of the partition facing the interior of the vehicle.

11. The vehicle according to claim 10, characterized in that, The vehicle body is provided with a receiving groove, which is recessed from the outer surface of the vehicle body. The first mounting opening penetrates the bottom wall of the receiving groove, and the opening of the receiving groove on the outer surface of the vehicle body is the second mounting opening. The projection device further includes a cover plate, a first grille, and a second grille. The cover plate is connected to the end of the heat-conducting structure away from the light source assembly. The cover plate is spaced apart from the partition plate. The first grille and the second grille are connected to opposite sides of the cover plate. The first grille, the second grille, and the cover plate cover the second mounting opening. The cover plate is flush with the outer surface of the vehicle body.

Images