Image generation unit and head-up display

Abstract

The utility model relates to the technical field of image generation, and particularly discloses an image generation unit and a head-up display, the image generation unit comprises a shell, a heat dissipation assembly, a light source assembly, an image processing piece and a circuit board, the shell comprises a channel, a mounting side wall, a first end part and a second end part, the first end part and the second end part are oppositely arranged, and the channel penetrates through the first end part and the second end part; the mounting side wall is positioned outside the channel and is connected with the first end part and the second end part; the heat dissipation assembly is installed at the first end, and the light source assembly is installed on the heat dissipation assembly and located between the heat dissipation assembly and the first end. The image processing part is mounted at the second end part and comprises a processing circuit board, and at least part of the processing circuit board extends to the same side, located on the mounting side wall, of the shell; the circuit board is installed on the installation side wall and is in signal connection with the processing circuit board. According to the image generation unit, the heat dissipation performance and the EMS anti-interference performance are improved through the shell integrated circuit board, the heat dissipation assembly and other hardware, the size is small, and space is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of image generation, and particularly relates to an image generation unit and a head-up display. Background Art

[0002] There are more and more new energy vehicles equipped with HUD (Head Up Display) on the market, which have been widely recognized by most users. The HUD can not only help drivers obtain information more conveniently during driving, but also improve the driving safety of vehicles.

[0003] However, at present, most domestic and foreign automobile brands adopt a PGU (Peripheral Graphics Unit, image generation unit) based on TFT (Thin Film Transistor) technology in the design of head-up displays. However, most of the existing PGUs use a housing for heat dissipation and have a large number of lamp beads. During the operation of the device, the heat generation is large, but the housing bears all the heat dissipation requirements. Limited by the housing shape, it is impossible to provide better heat dissipation performance, resulting in difficult heat dissipation. If sunlight pours in and the internal temperature continues to rise, it will cause the HUD to malfunction. Moreover, the distance between the PCB (Printed Circuit Board) and the TFT panel is too far, and the image display will be unclear due to electromagnetic interference during transmission. In the actual driving environment, the image display failure will affect the driver's experience and driving safety. Summary of the Utility Model

[0004] This application provides an image generation unit and a head-up display. The image generation unit can improve the heat dissipation performance and EMS (Electro Magnetic Susceptibility) anti-interference performance, so as to provide a stable image. Moreover, the image generation unit integrates hardware and has a small volume, which can save space.

[0005] To solve the above technical problems, a technical solution adopted in this application is: to provide an image generation unit and a head-up display. The image generation unit includes a housing, a heat dissipation component, a light source component, an image processing component, and a circuit board; the housing includes a channel, an installation side wall, a first end and a second end arranged oppositely, the channel penetrates through the first end and the second end, and the installation side wall is located outside the channel and connects the first end and the second end; the heat dissipation component is installed at the first end; the light source component is installed on the heat dissipation component and is located between the heat dissipation component and the first end; the image processing component is installed at the second end, the image processing component includes a processing circuit board, and at least part of the processing circuit board extends to the same side of the housing where the installation side wall is located; the circuit board is installed on the installation side wall and is signal-connected to the processing circuit board.

[0006] Among them, the light source assembly includes a lamp bead board and lamp beads located on the lamp bead board; the lamp bead board is connected to the heat dissipation assembly, and the lamp beads are located on the side of the lamp bead board facing away from the heat dissipation assembly; the image generation unit further includes a total internal reflection member and a compound eye, and the total internal reflection member and the compound eye are sequentially installed at the first end portion, and the total internal reflection member is located between the lamp beads and the compound eye.

[0007] Among them, a receiving groove is provided at the first end portion, and the total internal reflection member and the compound eye are located in the receiving groove; the part of the lamp bead board surrounding the receiving groove is a pressing portion, and the pressing portion abuts against the first end portion; the image generation unit further includes a sealing gasket, and the sealing gasket elastically abuts between the pressing portion and the first end portion.

[0008] Among them, positioning convex columns are provided on the inner wall of the receiving groove; fixing holes are provided on the total internal reflection member, the compound eye and the lamp bead board, and the positioning convex columns are fixed in the first fixing holes.

[0009] Among them, the image generation unit further includes a cover body, and the cover body is installed at the second end portion and presses the image processing member.

[0010] Among them, an installation groove is provided at the second end portion, and positioning columns are provided on the inner wall of the installation groove; the image processing member further includes an image display portion connected to the processing circuit board; the image generation unit further includes a condenser lens, and both the condenser lens and the image display portion are accommodated in the installation groove, and the image display portion is located between the condenser lens and the cover body; fixing holes are provided on both the cover body and the condenser lens, and the positioning columns are fixed in the second fixing holes.

[0011] Among them, the installation groove is a stepped groove, including a first groove portion and a second groove portion; along the direction from the first end portion to the second end portion, the first groove portion and the second groove portion are arranged in sequence, and a stepped surface is formed between the first groove portion and the second groove portion; the condenser lens is installed in the first groove portion; the image display portion is installed in the second groove portion and abuts against the stepped surface.

[0012] Among them, a card slot is further provided at the bottom of the first groove portion, and the image generation unit further includes an optical diffuser, and the optical diffuser is installed in the card slot, and the optical diffuser is located between the condenser lens and the image processing member.

[0013] Among them, a plurality of limiting members are provided around the card slot at the bottom of the first groove portion, and the optical diffuser is installed at the opening and abuts against the limiting members when moving along the direction from the first end portion to the second end portion.

[0014] This application also includes a second technical solution, providing a head-up display including the above-mentioned image generation unit.

[0015] The beneficial effects of the present application are as follows: Different from the prior art, the image generation unit and the head-up display provided by the present application. The image generation unit includes a housing, a heat dissipation component, a light source component, an image processing component, and a circuit board. The housing includes a channel, a mounting side wall, a first end and a second end arranged oppositely. The channel penetrates through the first end and the second end to facilitate the propagation of light. The mounting side wall is located outside the channel and connects the first end and the second end to facilitate the installation of the circuit board. The heat dissipation component is installed at the first end, and the light source component is installed on the heat dissipation component and located between the heat dissipation component and the first end, so that the heat dissipation component can directly dissipate heat from the light source component, improving the heat dissipation efficiency and performance. The image processing component is installed at the second end. The image processing component includes a processing circuit board, and at least part of the processing circuit board extends out of the housing on the same side as the mounting side wall. The circuit board is installed on the mounting side wall and is signal-connected to the processing circuit board, which can shorten the distance required for signal connection between the processing circuit board and the circuit board, improve the anti-interference performance of EMS, and the circuit board is integrated on the housing, which can save space. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings, where:

[0017] Figure 1 is an assembled structural schematic diagram of an embodiment of the image generation unit of the present application. The image generation unit includes a housing, a heat dissipation component, a light source component, an image processing component, and a circuit board;

[0018] Figure 2 is Figure 1 an exploded structural schematic diagram;

[0019] Figure 3 is Figure 1 a structural schematic diagram of the light source component in

[0020] Figure 4 is Figure 1 an exploded structural schematic diagram of the first end of the housing in

[0021] Figure 5 is Figure 1 an exploded structural schematic diagram of the second end of the housing in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] To make the above objects, features, and advantages of the present application more apparent and understandable, the following describes the specific embodiments of the present application in detail with reference to the accompanying drawings. It can be understood that the specific embodiments described herein are only for explaining the present application and not for limiting the present application. Additionally, it should be noted that for the convenience of description, only the parts related to the present application rather than all the structures are shown in the drawings. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0023] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive of other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0024] In the description of the present application, the terms "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.

[0025] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", and "coupled" should be construed in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows mutual communication; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0026] Please refer to Figures 1 to 5, in one aspect of the present application, an image generation unit 1 is provided. The image generation unit 1 includes a housing 11, a heat dissipation component 12, a light source component 13, an image processing component 14, and a circuit board 21. The housing 11 includes a channel 114, a mounting side wall 113, a first end 111 and a second end 112 that are oppositely arranged. The channel 114 penetrates through the first end 111 and the second end 112 to facilitate the propagation of light. The mounting side wall 113 is located outside the channel 114 and connects the first end 111 and the second end 112 to facilitate the installation of the circuit board 21. The heat dissipation component 12 is installed at the first end 111, and the light source component 13 is installed on the heat dissipation component 12 and is located between the heat dissipation component 12 and the first end 111, so that the heat dissipation component 12 can directly dissipate heat from the light source component 13, improving the heat dissipation efficiency and performance. The image processing component 14 is installed at the second end 112. The image processing component 14 includes a processing circuit board 141. At least part of the processing circuit board 141 extends out of the housing 11 on the same side of the mounting side wall 113. The circuit board 21 is installed on the mounting side wall 113 and is signal-connected to the processing circuit board 141, which can shorten the distance required for signal connection between the processing circuit board 141 and the circuit board 21, improving the EMS anti-interference performance. Moreover, the circuit board 21 is integrated on the housing 11, which can save space.

[0027] Specifically, according to the functional setting, the housing 11 may include a projection area and an information processing area. The projection area is located inside the housing 11 and includes the first end 111, the channel 114, the second end 112, etc. The light source component 13 is located between the heat dissipation component 12 and the first end 111. The image processing component 14 is installed at the second end 112. The light emitted from the light source component 13 can be propagated through the channel 114 to the image processing component 14 for processing, and then an image is output. The heat dissipation component 12 is in direct contact with the light source component 13, which can improve the efficiency of the light source component 13 transferring heat to the heat dissipation component 12. Moreover, the design of the heat dissipation component 12 being independent of the housing 11 enables the heat dissipation requirement to be independently borne by the heat dissipation component 12, reducing the heat dissipation requirement of the housing 11. And preferably, the housing 11 can be made of a lightweight material such as plastic, reducing the weight and manufacturing cost of the image generation unit 1. The heat dissipation component 12 can be made of a metal with good heat dissipation effect, such as aluminum alloy. In addition, the heat dissipation component 12, the light source component 13, the image processing component 14, and the circuit board 21 are all integrated on the housing 11, which is convenient for installation and disassembly and also reduces the maintenance cost.

[0028] The information processing area is located on the installation side wall 113 outside the housing 11. The circuit board 21 is installed on the installation side wall 113 and is located in the information processing area to facilitate the collection and processing of information and transmit the information to the head-up display. Further, at least a part of the processing circuit board 141 extends to the same side of the housing 11 where the installation side wall 113 is located, and the part of the processing circuit board 141 extending to the housing 11 is signal-connected to the circuit board 21 located in the information processing area, which can shorten the distance of the signal connection with the circuit board 21. The shorter the distance, the less signal interference is received, thereby improving the anti-interference performance of EMS. The circuit board 21 is integrated on the housing 11, and there is no need to design a new installation position in the whole head-up display, which can save space. In a specific embodiment, the heat dissipation component 12 may include a radiator with heat dissipation fins. The radiator can be made of aluminum alloy to reduce costs and improve heat dissipation performance. The heat dissipation fins can be arranged facing away from the housing 11 to transfer the heat on the light source component 13 to the outside together, improving the heat dissipation efficiency. In another specific embodiment, the heat dissipation component 12 may also include other structures, which will not be elaborated here.

[0029] In an embodiment of the present application, please refer to Figure 2 and Figure 3 , the light source component 13 includes a lamp bead board 131 and lamp beads 132 located on the lamp bead board 131; the lamp bead board 131 is connected to the heat dissipation component 12 to facilitate the transfer of heat to the heat dissipation component 12, and the lamp beads 132 are located on the side of the lamp bead board 131 facing away from the heat dissipation component to face the channel 114 to facilitate providing light towards the image processing member 14. The image generation unit 1 further includes a total internal reflection member 15 and a compound eye 16. The total internal reflection member 15 and the compound eye 16 are sequentially installed at the first end portion 111, and the total internal reflection member 15 is located between the lamp beads 132 and the compound eye 16.

[0030] Specifically, the lamp beads 132 may include LEDs (Light-Emitting Diodes), which can efficiently convert electrical energy into light energy, saving energy and being environmentally friendly. The lamp bead board 131 is used to supply power to the LED lamp beads 132 and process and collect information to control the LED lamp beads 132. The total internal reflection member 15 uses the principle of total reflection to reflect, collect, and process the light rays emitted by the LED lamp beads 132, improving the utilization rate of LED light energy. The compound eye 16 is used to improve the uniformity of the light source on the illumination plane. In a specific embodiment, by adding the compound eye 16 and designing the optical scheme with the total internal reflection member 15 disposed between the lamp beads 132 and the compound eye 16, the number of lamp beads 132 can be reduced. For example, the number of lamp beads 132 can be four, and the four lamp beads 132 are arranged side by side on the lamp bead board 131, reducing the heat generated by the lamp beads 132. When the heat dissipation component 12 is used for heat dissipation of the lamp bead board 131, the heat dissipation requirement can be met, thereby improving or avoiding various potential risk items caused by excessive temperature. In another specific embodiment, the number of lamp beads 132 can also be adjusted according to actual needs and different optical schemes.

[0031] In one embodiment of the present application, please refer to Figure 2 , a receiving groove 115 is provided at the first end portion 111, and the total internal reflection member 15 and the compound eye 16 are located in the receiving groove 115. The portion of the lamp bead board 131 surrounding the receiving groove 115 is a pressing portion, and the pressing portion abuts against the first end portion 111; the image generating unit 1 further includes a sealing gasket 22, and the sealing gasket 22 elastically abuts between the pressing portion and the first end portion 111.

[0032] Specifically, the receiving groove 115 is used to accommodate and integrate hardware such as the total internal reflection member 15 and the compound eye 16, improving the space utilization rate and reducing the volume of the image generating unit 1. The sealing gasket 22 can be disposed on the side of the pressing portion facing the first end portion 111, used to seal the gap between the light source assembly 13 and the housing 11, and prevent stray light from entering the projection area. When the heat dissipation component 12 is connected and fixed to the housing 11, the gap between the light source assembly 13 and the housing 11 can be sealed through the sealing gasket 22.

[0033] In another embodiment of the present application, please refer to Figure 3 and Figure 4 , different from the above embodiment, positioning convex columns 116 are provided on the inner wall of the receiving groove 115, and first fixing holes 31 are provided on the total internal reflection member 15, the compound eye 16, and the lamp bead board 131, and the positioning convex columns 116 are fixed in the first fixing holes 31.

[0034] Specifically, the positioning convex columns 116 may extend in the direction from the second end portion 112 to the first end portion 111. By passing the positioning convex columns 116 through the first fixing holes 31, the connection and fixation of the total internal reflection member 15 and the compound eye 16 to the housing 11 can be achieved, and the lamp bead board 131 can also be positioned.

[0035] Further, there may be a plurality of positioning studs 116, and the plurality of positioning studs 116 are respectively located on different sides of the inner wall of the accommodating groove 115 and are arranged around the channel 114. A plurality of first fixing holes 31 are also correspondingly arranged, and the first fixing holes 31 correspond to the positioning studs 116 one by one to improve the stability of connection and fixation. Since the head-up display has high requirements for the installation accuracy of components, a smaller error can achieve a better imaging effect. The corresponding first fixing holes 31 on the total internal reflection member 15, the compound eye 16 and the lamp bead board 131 can be positioned by passing through the same positioning stud 116, improving or avoiding large errors caused by the tolerance accumulation of the dimensional chain of the total internal reflection member 15, the compound eye 16 and the lamp bead board 131, which may affect the imaging effect. Preferably, the gasket 22 can also be arranged between the heat dissipation component 12 and the housing 11 to seal the gap between the light source component 13 and the housing 11, improving or preventing light leakage.

[0036] In an integrated embodiment of the present application, please refer to Figure 2 and Figure 5 The image generation unit 1 further includes a cover body 18, and the cover body 18 is installed on the second end portion 112 and presses the image processing member 14.

[0037] Specifically, along the direction from the first end portion 111 to the second end portion 112, the cover body 18 is installed on the outermost side of the second end portion 112 to facilitate pressing and fixing the image processing member 14, improving or avoiding the situation that the image processing member 14 detaches from the second end portion 112 and improving the stability.

[0038] In an embodiment of the present application, the second end portion 112 is provided with an installation groove 117, and the inner wall of the installation groove 117 is provided with positioning posts 118. The positioning posts 118 are arranged around the channel 114 and are used to fix hardware such as the condenser lens 17 and the cover body 18. The image processing member 14 further includes an image display portion 142 connected to the processing circuit board 141; the image generation unit 1 further includes a condenser lens 17. Both the condenser lens 17 and the image display portion 142 are accommodated in the installation groove 117, and the image display portion 142 is located between the condenser lens 17 and the cover body 18; both the cover body 18 and the condenser lens 17 are provided with second fixing holes 32, and the positioning posts 118 are fixed in the second fixing holes 32.

[0039] Specifically, the condenser lens 17 can make up for insufficient light quantity and focus the light on the image display portion 142. The image display portion 142 is located between the condenser lens 17 and the cover body 18, and the condenser lens 17 and the image display portion 142 can be pressed and fixed by the cover body 18 along the direction from the second end portion 112 to the first end portion 111.

[0040] Further, the cover body 18 and the condenser lens 17 can be positioned by the same positioning post 118 and installed on the housing 11, which can reduce errors.

[0041] In an embodiment of the present application, the installation groove 117 is a stepped groove, including a first groove portion 1171 and a second groove portion 1172; along the direction from the first end portion 111 to the second end portion 112, the first groove portion 1171 and the second groove portion 1172 are arranged in sequence, and a stepped surface 1173 is formed between the first groove portion 1171 and the second groove portion 1172; the condenser lens 17 is installed in the first groove portion 1171, and the image display portion 142 is installed in the second groove portion 1172 and abuts against the stepped surface 1173.

[0042] Specifically, along the direction from the first end portion 111 to the second end portion 112, the length of the first groove portion 1171 is greater than that of the second groove portion 1172. The first groove portion 1171 is used to support the condenser lens 17, and the second groove portion 1172 is used to support the image processing member 14. A stepped surface 1173 is formed between the first groove portion 1171 and the second groove portion 1172. The condenser lens 17 is installed in the first groove portion 1171 through the positioning post 118. At the position where the orthographic projection of the second groove portion 1172 corresponds to the inner wall of the installation groove 117, a limiting groove 1176 is provided. When the image display portion 142 is installed in the second end portion 112, one end can be located in the limiting groove 1176, and the other end can be located in the second groove portion 1172 and abut against the stepped surface 1173, and finally it is fixed by pressing with the cover body 18.

[0043] Further, an avoidance space is also provided on the second groove portion 1172. The avoidance space is used to provide a space so that the processing circuit board 141 can extend from the second groove portion 1172 to the outside of the housing 11, so as to facilitate the signal connection with the circuit board 21.

[0044] In an embodiment of the present application, a card slot 1175 is further provided at the bottom of the first groove portion 1171. The image generation unit 1 further includes an optical diffuser 19. The optical diffuser 19 is installed in the card slot 1175, and the optical diffuser 19 is located between the condenser lens 17 and the image processing member 14.

[0045] Specifically, when the light passes through the optical diffuser 19, many phenomena of refraction, reflection and scattering will occur, which can improve the uniformity of the light source irradiation. The card slot 1175 can fix the optical diffuser 19 and improve the stability. In order to make the optical diffuser 19 located between the condenser lens 17 and the image processing member 14, the card slot 1175 can be located at the connection between the first groove portion 1171 and the second groove portion 1172.

[0046] Further, a plurality of limiting members 1174 are provided around the card slot 1175 at the bottom of the first groove portion 1171. An opening is provided on the side of the card slot 1175 away from the first end portion 111, so as to facilitate the installation and removal of the optical diffuser 19. The optical diffuser 19 is installed at the opening and abuts against the limiting members 1174 when moving along the direction from the first end portion 111 to the second end portion 112.

[0047] On one side of the card slot 1175 close to the first end 111 is the side wall of the first groove part 1171, which can limit the optical diffuser 19. The limiting member 1174 can include a vertical surface and an inclined surface. The inclined surface is located on the side of the limiting member 1174 facing away from the first end 111, and the vertical surface is located on the side facing the first end 111. The optical diffuser 19 can be installed at the opening through the inclined surface and is limited by the side wall of the card slot 1175 and the vertical surface of the limiting member 1174.

[0048] In the image generation unit 1 of the embodiment of the present application, along the direction from the first end 111 to the second end 112, through the optical design scheme in which the lamp bead board 131, the total internal reflection member 15, the compound eye 16, the condenser lens 17, the optical diffuser 19 and the image processing member 14 are arranged in sequence, the number of required lamp beads 132 is effectively reduced, the heat generated by the production of the lamp beads 132 is reduced, the heat dissipation performance is improved, and through the structural design, the independent heat dissipation component 12 is used for the heat dissipation of the lamp bead board 131, which can meet the heat dissipation requirements of the image generation unit 1 and avoid various potential risk items caused by too high temperature. Since the heat dissipation component 12 undertakes the heat dissipation requirements, the requirement for the heat dissipation performance of the housing 11 is reduced, and the housing 11 can be made of plastic, which greatly reduces the weight and manufacturing cost of the image generation unit 1, and the hardware is integrally designed, which is convenient for installation and disassembly and also reduces the maintenance cost.

[0049] In addition, the image generation unit 1 of the embodiment of the present application installs the circuit board 21 on the installation side wall 113 of the housing 11, which not only saves space, but also greatly reduces the transmission distance of the processing circuit board 141, improves the anti-interference performance of the EMS, and makes the image of the head-up display stable and clear.

[0050] On the other hand, the present application also provides a head-up display, which includes the above-mentioned image generation unit 1. Specifically, since the head-up display includes the image generation unit 1 described in the above embodiment, it also has the beneficial effects of the above-mentioned image generation unit 1, which will not be elaborated here.

[0051] It should be noted that terms such as "horizontal" and "vertical" do not require the components to be absolutely horizontal or vertical, but can be slightly inclined; terms such as "parallel" and "perpendicular" do not mean that the fittings are absolutely parallel or perpendicular to each other, but can have a certain angular deviation. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. In addition, the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the products of the present application are usually placed during use. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0052] It can be understood that the meaning of "a plurality of" herein is at least two, such as two, three, etc., unless there are specific restrictive descriptions. 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 is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products or devices. The term "and / or" merely describes the association relationship of associated objects and indicates that three relationships can exist. 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.

[0053] The above are only the implementation manners of the present application, and do not limit the patent scope of the present application. Any equivalent structural or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present application.

Claims

1. An image generation unit, characterized in that: include: A shell (11), the shell (11) comprising a channel (114), a mounting side wall (113), a first end (111) and a second end (112) arranged opposite to each other, the channel (114) passing through the first end (111) and the second end (112), the mounting side wall (113) being located outside the channel (114) and connecting the first end (111) and the second end (112); A heat dissipation component (12), the heat dissipation component (12) being mounted on the first end portion (111); a light source assembly (13), the light source assembly (13) being mounted on the heat dissipation assembly (12) and located between the heat dissipation assembly (12) and the first end portion (111); an image processing component (14), the image processing component (14) being mounted on the second end portion (112), the image processing component (14) comprising a processing circuit board (141), the processing circuit board (141) at least partially extending to the same side of the housing (11) as the mounting side wall (113); A circuit board (21), the circuit board (21) is mounted on the mounting side wall (113) and is signal-connected to the processing circuit board (141).

2. The image generation unit according to claim 1, characterized in that The light source assembly (13) comprises a lamp bead plate (131) and lamp beads (132) located on the lamp bead plate (131); The lamp bead plate (131) is connected to the heat dissipation component (12), and the lamp bead (132) is located on a side of the lamp bead plate (131) facing away from the heat dissipation component (12); The image generation unit further comprises a total internal reflection element (15) and a compound eye (16), wherein the total internal reflection element (15) and the compound eye (16) are sequentially mounted on the first end (111), and the total internal reflection element (15) is located between the lamp bead (132) and the compound eye (16).

3. The image generation unit according to claim 2, characterized in that The first end portion (111) is provided with a receiving groove (115), and the total internal reflection element (15) and the compound eye (16) are located in the receiving groove (115); The portion of the lamp bead plate (131) surrounding the accommodating groove (115) is a pressing portion, and the pressing portion abuts against the first end portion (111); The image generation unit further comprises a sealing pad (22), wherein the sealing pad (22) elastically abuts between the pressing portion and the first end portion (111).

4. The image generation unit according to claim 2, characterized in that: The first end portion (111) is provided with a receiving groove (115), and the total internal reflection element (15) and the compound eye (16) are located in the receiving groove (115); The inner wall of the receiving groove (115) is provided with a positioning protrusion (116); The total internal reflection element (15), the compound eye (16) and the lamp bead plate (131) are all provided with a first fixing hole (31), and the positioning boss (116) is fixed to the first fixing hole (31).

5. The image generation unit according to claim 1, characterized in that: The image generation unit further comprises a cover body (18), wherein the cover body (18) is mounted on the second end portion (112) and presses the image processing component (14).

6. The image generation unit according to claim 5, characterized in that: The second end portion (112) is provided with a mounting groove (117), and the inner wall of the mounting groove (117) is provided with a positioning column (118); The image processing component (14) further comprises an image display unit (142) connected to the processing circuit board (141); The image generation unit further comprises a condenser (17), wherein the condenser (17) and the image display unit (142) are both accommodated in the mounting groove (117), and the image display unit (142) is located between the condenser (17) and the cover (18); The cover (18) and the condenser (17) are both provided with a second fixing hole (32), and the positioning column (118) is fixed to the second fixing hole (32).

7. The image generation unit according to claim 6, characterized in that: The mounting groove (117) is a step groove, comprising a first groove portion (1171) and a second groove portion (1172); Along the direction from the first end portion (111) to the second end portion (112), the first groove portion (1171) and the second groove portion (1172) are arranged in sequence, and a step surface (1173) is formed between the first groove portion (1171) and the second groove portion (1172); The condenser (17) is installed in the first groove (1171), and the image display unit (142) is installed in the second groove (1172) and abuts against the step surface (1173).

8. The image generation unit according to claim 7, characterized in that: A card slot (1175) is also provided at the bottom of the first groove portion (1171), and the image generation unit further comprises an optical diffuser (19), wherein the optical diffuser (19) is installed in the card slot (1175), and the optical diffuser (19) is located between the condenser (17) and the image processing component (14).

9. The image generation unit according to claim 8, characterized in that: A plurality of stoppers (1174) are also provided at the bottom of the first groove portion (1171) surrounding the locking groove (1175), and the optical diffuser (19) abuts against the stoppers (1174).

10. A head-up display, characterized in that: The invention comprises the image generating unit according to any one of claims 1 to 9.

Images