Projection device

Abstract

The embodiment of the utility model relates to the technical field of projection, in particular to projection equipment. According to the projection equipment provided by the embodiment of the invention, the first shell part is provided with the injection molding shell part, so that molding is convenient; the metal part is arranged as the insert and is integrally formed with the injection molding shell part, the structural strength and stability of the first shell part can be improved through the metal part, compared with a large-area iron block in the prior art, the weight of the first shell part can be reduced, the weight of the whole machine is further reduced, and the requirement for the hoisting strength is lowered. Moreover, the first shell is provided with the hoisting connecting part to be connected with the hoisting component, and the hoisting connecting part is fixed in the limiting hole of the metal part, so that the relative position of the hoisting connecting part and the metal part in the embedded injection molding process can be determined; moreover, the part, located on the side, away from the containing cavity, of the hoisting connecting part and the injection molding shell part are integrally formed, the connection reliability of the hoisting connecting part is guaranteed, and then the hoisting reliability and stability are improved.

Description

Technical Field

[0001] This application relates to the field of projection technology, and more particularly to a projection device. Background Technology

[0002] A projection device, also known as a projector, is a device that projects images or videos onto a screen. It can be connected to playback devices through various interfaces to play corresponding video signals. Projection devices are widely used in homes, offices, schools, and entertainment venues.

[0003] In related technologies, the outer casing of the projection device is equipped with a heavy metal plate, and a lifting nut column is installed on the metal plate to achieve the hoisting and fixing of the projection device.

[0004] However, the casing of the projection equipment in the relevant technology is relatively heavy, resulting in a heavy overall machine and affecting the stability of hoisting. Utility Model Content

[0005] This application provides a projection device that reduces the weight of the casing and improves the stability of hoisting.

[0006] This application provides a projection device, which includes:

[0007] The projector is configured to project an image.

[0008] A housing assembly is configured to form a communicating accommodating cavity and a light-emitting port, the accommodating cavity for accommodating the projection host, and the light-emitting port being opposite to the lens of the projection host; the housing assembly includes: a first housing member; the first housing member includes:

[0009] Injection-molded shell;

[0010] A metal portion is located on the side of the injection-molded shell portion facing the receiving cavity, and the metal portion is integrally formed with the injection-molded shell portion; the metal portion is provided with a limiting hole;

[0011] A lifting connection part is fixed to the limiting hole; a portion of the lifting connection part is located on the side of the metal part away from the receiving cavity and is integrally formed with the injection-molded shell part; a portion of the lifting connection part is exposed on the outside of the injection-molded shell part away from the receiving cavity and is used to connect the lifting component.

[0012] The projection device of this application embodiment has a first shell component that is easily molded by providing an injection-molded shell portion. By providing a metal portion as an insert, integrally molded with the injection-molded shell portion, the structural strength and stability of the first shell component can be improved by utilizing the metal portion. Compared with the large-area iron block in the prior art, the weight of the first shell component can also be reduced, thereby reducing the weight of the entire machine and lowering the requirements for hoisting strength. Furthermore, the first shell component is provided with a hoisting connection portion to connect to the hoisting components. The hoisting connection portion is fixed in the limiting hole of the metal portion, which can determine the relative position of the hoisting connection portion and the metal portion in the embedded injection molding. Moreover, the part of the hoisting connection portion located on the side of the metal portion away from the receiving cavity is integrally molded with the injection-molded shell portion, ensuring the reliability of the hoisting connection portion, thereby improving the reliability and stability of hoisting.

[0013] In some embodiments of this application, the hoisting connection includes:

[0014] The limiting end is located on the side of the metal part facing the receiving cavity and abuts against the metal part;

[0015] The main body connecting part is connected to the limiting end and fixed to the limiting hole; the main body connecting part passes through the limiting hole and is integrally formed with the injection molded shell part, and one end of the main body connecting part away from the limiting end is exposed on the outside of the injection molded shell part away from the receiving cavity, for connecting the hoisting component.

[0016] In this embodiment, the lifting connection portion has a limiting end on the side of the metal portion facing the receiving cavity, which abuts against the metal portion to prevent the lifting connection portion from detaching from the metal portion. This further improves the stability and reliability of the connection between the lifting connection portion and the metal portion, thereby improving the stability of the lifting. A portion of the main body connection portion is located inside the limiting hole and is fixedly connected to it. The other portion of the main body connection portion extends outside the limiting hole and is integrally formed with the injection-molded shell portion, ensuring the stability of the connection between the lifting connection portion and the injection-molded shell portion.

[0017] In some embodiments of this application, the injection-molded shell portion is configured to form an annular limiting edge, the annular limiting edge covering at least a portion of the end of the lifting connection portion away from the receiving cavity; the annular limiting edge encloses an opening to expose at least a portion of the lifting connection portion.

[0018] In this embodiment, an annular limiting edge is formed on the injection-molded shell portion, such that the annular limiting edge covers at least a portion of the end of the lifting connection portion away from the receiving cavity. This allows the injection-molded shell portion to form an annular limiting edge in the direction of the lifting force, further expanding the contact area between the lifting connection portion and the injection-molded shell portion, further improving the stability and reliability of the connection between the lifting connection portion and the injection-molded shell portion, and reducing the possibility of the lifting connection portion detaching from the injection-molded shell portion.

[0019] In some embodiments of this application, the metal portion is elongated;

[0020] The hoisting connection is provided in multiple parts, and the multiple hoisting connection parts are arranged at intervals along the extension direction of the metal part.

[0021] The embodiments of this application increase the number of hoisting positions for the projection device by providing multiple hoisting connection parts at intervals in the extending direction of the metal part, which helps to improve the reliability of hoisting the projection device.

[0022] In some embodiments of this application, the metal portion extends along a first direction;

[0023] The metal portion is provided in multiple ways, and the multiple metal portions extend along a second direction of the injection-molded shell portion; the second direction intersects with the first direction.

[0024] In this embodiment, by setting the metal part to extend along the first direction, the metal part has a longer reinforcing length, which is beneficial to improving the structural strength of the first shell; in addition, by setting multiple metal parts, the number of metal parts is increased, which further improves the structural strength of the first shell.

[0025] In some embodiments of this application, the first direction is perpendicular to the second direction, and the dimension of the injection-molded shell portion along the first direction is greater than the dimension of the injection-molded shell portion along the second direction.

[0026] In this embodiment, a metal part extends along the length of the injection-molded shell part, and multiple metal parts extend along the width of the injection-molded shell part to strengthen the stress-sensitive areas of the injection-molded shell part, thereby improving the structural strength and stability of the first shell part.

[0027] In some embodiments of this application, a first fixing post is provided on the injection-molded shell portion, and the first fixing post is fixedly connected to the projection host.

[0028] The first fixing post is located between two adjacent metal parts.

[0029] The first fixing post, as the fixing structure for the projector, requires high strength. Positioning the first fixing post between two adjacent metal parts reinforces the surrounding structure.

[0030] In some embodiments of this application, the injection-molded shell portion is formed as follows:

[0031] A first reinforcing zone is formed between multiple metal parts; a plurality of first reinforcing ribs are provided at intervals within the first reinforcing zone.

[0032] A second reinforcing zone is provided outside the first reinforcing zone; a plurality of second reinforcing ribs are provided at intervals within the second reinforcing zone.

[0033] Wherein, the interval between at least two adjacent first reinforcing ribs is smaller than the interval between two adjacent second reinforcing ribs.

[0034] The embodiments of this application improve the structural strength of the first shell by forming a first reinforcing rib and a second reinforcing rib on the injection-molded shell portion; the spacing between the first reinforcing ribs provided between the multiple metal portions is small, resulting in a large number of first reinforcing ribs between the multiple metal portions, which is beneficial to further improve the structural strength between the multiple metal portions.

[0035] In some embodiments of this application, the metal portion includes:

[0036] Metal body part;

[0037] At least one stepped portion, the stepped portion protruding from the side of the metal body portion opposite to the receiving cavity;

[0038] The limiting hole extends through the stepped portion and the metal body portion.

[0039] In this embodiment, by providing a protruding stepped portion on the metal body, the length of the limiting hole can be extended, improving the stability and reliability of the connection between the limiting hole and the hoisting connection portion. It can also make the side of the metal body away from the accommodating cavity form a non-planar contact with the injection molded shell portion, enhancing the mechanical engagement between the metal part and the injection molded shell portion, strengthening the adhesion between the two, and improving strength and stability.

[0040] Furthermore, a stepped joint surface is formed between the stepped section and the hoisting stepped section, further improving the stability and reliability of the connection between the metal section and the hoisting connection section within the injection-molded shell section.

[0041] In some embodiments of this application, the housing assembly further includes a second housing member, which is fixedly connected to the injection-molded housing portion and surrounds the receiving cavity;

[0042] The injection-molded shell portion is provided with two second fixing posts, which are arranged at intervals along a first direction; the second fixing posts are fixedly connected to the second shell portion.

[0043] The metal portion extends along the first direction, and one end of the metal portion along the first direction extends beyond one side of the two second fixing posts along the first direction, while the other end of the metal portion along the first direction extends beyond the other side of the two second fixing posts along the first direction.

[0044] In this embodiment, the two ends of the metal part extending along the first direction protrude from both sides of the two second fixing posts along the second direction, thereby strengthening the structure of the area between the two second fixing posts and helping to ensure the stability and reliability of the connection between the injection-molded shell part and the second shell part. Attached Figure Description

[0045] To more clearly illustrate the implementation methods in the embodiments of this application or related technologies, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings.

[0046] Figure 1 This is a schematic diagram of the projection setup provided in some embodiments of this application;

[0047] Figure 2 Exploded views of the first shell provided for some embodiments of this application;

[0048] Figure 3 This is a schematic diagram of the structure of the first shell provided in some embodiments of this application;

[0049] Figure 4 for Figure 3 AA section view in the middle;

[0050] Figure 5 for Figure 4 Enlarged schematic diagram of region P in the middle;

[0051] Figure 6 Schematic diagrams of the structure of the metal part provided in some embodiments of this application;

[0052] Figure 7 Cross-sectional views of the hoisting connection, metal part, and injection molded shell part provided for other embodiments of this application;

[0053] Figure 8 This is a schematic diagram of the structure of the hoisting connection and the metal part provided in some embodiments of this application;

[0054] Figure 9 for Figure 8 BB section view in the middle;

[0055] Figure 10 for Figure 9 Enlarged schematic diagram of the mid-Q region;

[0056] Figure 11 This is a schematic diagram of the structure of the injection-molded shell portion provided in some embodiments of this application;

[0057] Figure 12This is a schematic diagram of the structure of the injection-molded shell portion provided in some embodiments of this application;

[0058] Figure 13 for Figure 12 A magnified diagram of the R region.

[0059] Explanation of reference numerals in the attached figures:

[0060] 10: Housing assembly; 11: First housing component;

[0061] 100: Injection-molded shell portion; 110: Annular limiting edge; 120: Shell body portion; 130: First fixing post; 140: First reinforcing area; 141: First reinforcing rib; 150: Second reinforcing area; 151: Second reinforcing rib; 160: Protrusion; 161: Post portion; 162: Transition portion; 170: Second fixing post; 180: Protrusion platform;

[0062] 200: Metal part; 201: Limiting hole; 210: Metal body part; 220: Stepped part; 230: Glue-pulling structure;

[0063] 300: Lifting connection part; 301: Connection hole; 310: Limiting end; 320: Main body connection part. Detailed Implementation

[0064] To make the objectives, implementation methods and advantages of this application clearer, the exemplary implementation methods of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments of this application. Obviously, the described exemplary embodiments are only some embodiments of this application, and not all embodiments.

[0065] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0066] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclusively include, for example, a product or device that includes a series of components is not necessarily limited to those that are explicitly listed, but may include other components that are not explicitly listed or that are inherent to such product or device.

[0067] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0068] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0069] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0070] In related technologies, projection devices, such as laser projectors or micro-projectors, contain a light source engine assembly that is relatively heavy, requiring high levels of fixation and support. Due to the needs of their application scenarios, projection devices are typically mounted using ceiling-mounted or gimbal-mounted systems. The outer casing of the projection device is equipped with M6 or larger lifting nuts and features a heavy metal plate to increase its strength, protect the light source engine assembly, and accommodate the lifting nuts.

[0071] The presence of the metal plate increases the thickness of the outer casing, resulting in a larger overall size and weight for the projection device, which affects the stability of the installation. The large metal plate also increases product cost.

[0072] In view of this, the projection device in this application eliminates the large metal plate and instead embeds a metal strip inside the injection-molded shell to improve the structural strength of the shell; and a lifting nut is provided on the metal strip, with the lifting nut portion also embedded in the injection-molded shell to ensure the stability and reliability of the lifting nut. This achieves the lightweighting and miniaturization of the projection device.

[0073] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0074] The projection device in this application embodiment may include a projection host, which is configured to project images.

[0075] The projector can project an image beam, which can project an image onto a projection screen for the user to view.

[0076] For example, the projector can be a laser projector, which may include an illumination component and a projection lens, etc.

[0077] Reference Figure 1 and Figure 2 The projection device may also include a housing assembly 10, which is configured to form a connected accommodating cavity and a light outlet. The accommodating cavity is used to accommodate the projector, and the light outlet is opposite to the lens of the projector. Thus, the image beam projected by the projector exits the housing assembly 10 through the light outlet and is projected onto the projection screen.

[0078] In some embodiments of this application, the housing assembly 10 includes a first housing member 11 and a second housing member, which are fixedly connected to form an accommodating cavity.

[0079] The light-emitting port can be located on the first housing 11, and the light-emitting port can be located on the second housing. Of course, the light-emitting port can also be formed by the first housing 11 and the second housing together.

[0080] There can be various ways to fix the first shell 11 and the second shell, including but not limited to snap-fit ​​and screw connection.

[0081] Continue to refer to Figure 2 and Figure 3 In some possible embodiments of this application, the first shell 11 includes an injection-molded shell portion 100. The injection-molded shell portion 100 is formed by injection molding, which not only facilitates efficient processing of the injection-molded shell portion 100, but also helps to ensure the consistency of batch molding of the injection-molded shell portion 100.

[0082] The first housing 11 may also include a metal part 200, which is located on the side of the injection-molded housing 100 facing the receiving cavity, so that the metal part 200 is hidden inside the injection-molded housing 100 and not exposed outside the injection-molded housing 100, which is beneficial to the appearance design of the first housing 11.

[0083] The metal part 200 is integrally formed with the injection-molded shell part 100 as an insert. This arrangement not only helps to improve the structural strength of the first shell part 11, but also reduces assembly steps and helps to reduce weight.

[0084] During the process of the injection-molded shell portion 100 material transitioning from a molten state to a solid state, the metal portion 200 and the material of the injection-molded shell portion 100 are tightly integrated, ensuring the stability and reliability of the metal portion 200's embedding. The metal portion 200, embedded within the injection-molded shell portion 100, acts like a skeleton for the injection-molded shell portion 100, enhancing its strength and rigidity.

[0085] Continue to refer to Figure 3 In some embodiments of this application, the metal portion 200 extends along a first direction. This strip-shaped metal portion 200 facilitates the selection of the required quantity, adjustment of position and spacing, and improves the versatility of the metal portion 200.

[0086] Multiple metal portions 200 are provided, and the multiple metal portions 200 extend along a second direction of the injection-molded shell portion 100; the second direction intersects with the first direction. For example, two metal portions 200 are provided.

[0087] In this embodiment, by setting the metal part 200 to extend along the first direction, the metal part 200 has a longer reinforcing length, which is beneficial to improving the structural strength of the first shell 11; in addition, by setting multiple metal parts 200, the number of metal parts 200 is increased, which further improves the structural strength of the first shell 11.

[0088] In some possible implementations, the first direction is perpendicular to the second direction. For example... Figure 3 As shown, the metal part 200 extends along the X-axis direction, and multiple metal parts 200 are spaced apart along the Y-axis direction, which facilitates the positioning and installation of the metal parts 200 in the injection mold.

[0089] The dimension of the injection-molded shell portion 100 along the first direction is larger than the dimension of the injection-molded shell portion 100 along the second direction. This arrangement causes the metal portions 200 to extend along the length direction of the injection-molded shell portion 100, and multiple metal portions 200 to be arranged at intervals along the width direction of the injection-molded shell portion 100.

[0090] Since the first shell 11 has a large dimension along the X-axis, which is a sensitive direction for the equipment to be subjected to force, the structural strength and stability of the first shell 11 can be improved by setting a metal part 200 extending along the X-axis and arranging multiple metal parts 200 along the Y-axis.

[0091] Continue to refer to Figure 3 In some possible implementations, the projection of the injection-molded shell portion 100 into the XY plane is rectangular, and it has a first centerline and a second centerline, the first centerline extending along the X-axis and the second centerline extending along the Y-axis. The metal portions 200 are symmetrical about the second centerline, and multiple metal portions 200 are symmetrical about the first centerline. Thus, multiple metal portions 200 are arranged in the central region of the injection-molded shell portion 100 where strength requirements are high, thereby better improving the structural strength and stability of the first shell member 11.

[0092] The metal part 200 can be exposed in the receiving cavity, which makes it convenient for operators to avoid the metal part 200 when further processing the internal structure of the receiving cavity.

[0093] The metal part 200 may also not be exposed in the receiving cavity, that is, the metal part 200 is embedded in the injection shell part 100 without being exposed, which can further improve the stability of the metal part 200 embedded in the injection shell part 100. Of course, due to the fixing and positioning structure of the metal part 200 in the injection mold, a part of the metal part 200 will still be exposed in the receiving cavity.

[0094] Reference Figure 2 and Figure 3 The side of the metal part 200 facing the receiving cavity is flush with at least a portion of the inner surface of the injection-molded shell part 100 surrounding it, wherein the inner surface of the injection-molded shell part 100 is the surface of the injection-molded shell part 100 facing the receiving cavity, that is, the surface of the shell body part 120 facing away from the protrusion 160.

[0095] The embodiment of this application is configured in such a way that the metal part 200 protrudes from the injection molded shell part 100 around it, thereby preventing the metal part 200 from affecting the other structural arrangements inside the injection molded shell part 100, and also preventing the arrangement of the metal part 200 from affecting the arrangement of other structures inside the accommodating cavity.

[0096] The metal part 200 can also be made of stainless steel, iron, aluminum alloy, copper alloy, etc. In this embodiment, by embedding the metal part 200 inside the injection-molded shell 100, the structural strength of the first shell 11 can be increased, and the weight of the first shell 11 can be reduced, thereby reducing the weight of the entire projection device. The specific material used for the metal part 200 is not limited.

[0097] The metal part 200 can have various shapes, such as rectangular, elliptical, or circular, and this embodiment does not limit this. The arrangement and shape of the metal part 200 should avoid interfering with the original reinforcing structures and fixing structures inside the injection-molded shell part 100.

[0098] In some embodiments of this application, the metal part 200 is provided with a limiting hole 201, which is connected to the hoisting connection part 300 to ensure the relative position between the hoisting connection part 300 and the metal part 200.

[0099] Continue to refer to Figure 2 and Figure 3 In some embodiments, the first housing 11 may further include a lifting connection 300, wherein the lifting connection 300 is fixed to the limiting hole 201 so that the position between the lifting connection 300 and the metal part 200 is determined.

[0100] For example, the lifting connection 300 is interference-fitted with the limiting hole 201, so that the lifting connection 300 and the metal part 200 are tightly connected, thereby improving strength and stability.

[0101] For example, the hoisting connection 300 is riveted to the limiting hole 201, and the connection is reliable and durable, without the need for high-precision fitting.

[0102] In some embodiments of this application, combined with Figures 4 to 6 The metal portion 200 may include a metal body portion 210 and at least one stepped portion 220, the stepped portion 220 being protruding from the side of the metal body portion 210 away from the receiving cavity.

[0103] The limiting hole 201 penetrates the stepped portion 220 and the metal body portion 210, so that the stepped portion 220 is annular on the side of the metal body portion 210 away from the receiving cavity.

[0104] In this embodiment, the metal part 200, by providing a protruding stepped part 220 on the metal body part 210, can extend the length of the limiting hole 201, improve the stability and reliability of the connection between the limiting hole 201 and the hoisting connection part 300, and also make the side of the metal body away from the accommodating cavity form a non-planar contact with the injection molded shell part 100, enhance the mechanical engagement between the metal part 200 and the injection molded shell part 100, enhance the adhesion between the two, and improve the strength and stability.

[0105] Furthermore, a stepped joint surface is also formed between the stepped portion 220 and the lifting stepped portion 220, which further improves the stability and reliability of the connection between the metal portion 200 and the lifting connection portion 300 within the injection-molded shell portion 100.

[0106] In some possible implementations, combining Figure 7Multiple steps 220 are provided, and the multiple steps 220 are arranged sequentially along the thickness direction of the body; the edges of two adjacent steps 220 are spaced apart; wherein, the limiting hole 201 penetrates all steps 220 and the body.

[0107] For example, two stepped portions 220 are formed on the side of the metal body portion 210 away from the receiving cavity, and the edges of the two stepped portions 220 are spaced apart.

[0108] In this implementation, by setting multiple stepped portions 220, a multi-layered stepped joint surface is formed on the side of the metal body portion 210 away from the accommodating cavity, which helps to further enhance the stability of the connection between the metal portion 200 and the injection-molded shell portion 100.

[0109] Combination Figure 8 In some embodiments of this application, the metal part 200 is further provided with a glue-pulling structure 230 to further improve the stability of the connection between the metal part 200 and the injection-molded shell part 100.

[0110] In some embodiments, the adhesive-stretching structure 230 may be disposed on the side of the metal body portion 210 away from the stepped portion 220. The stepped portion 220 of the metal portion 200 is also a type of adhesive-stretching structure 230. Thus, by arranging adhesive-stretching structures 230 on both sides of the metal body portion 210, the balanced force on both sides of the metal body portion 210 is ensured, thereby improving the reliability of the structure between the metal portion 200 and the injection-molded shell portion 100.

[0111] For example, the adhesive-stretch structure 230 may include a protrusion disposed on the metal body portion 210.

[0112] For example, the adhesive-ply structure 230 may include a groove provided in the metal body portion 210. Figure 7 The dovetail groove shown in the image.

[0113] For example, the adhesive-stretching structure 230 may include a perforated structure or the like provided in the metal body portion 210.

[0114] Combination Figure 9 and Figure 10 The lifting connection part 300 is located on the side of the metal part 200 away from the receiving cavity, so that the sub-limiting hole 201 of the lifting connection part 300 extends to the side of the metal part 200 away from the receiving cavity.

[0115] The portion of the lifting connection 300 located on the side of the metal part 200 away from the receiving cavity is integrally formed with the injection-molded shell part 100, which can improve the stability and reliability of the connection between the lifting connection 300 and the injection-molded shell part 100.

[0116] Thus, the lifting connection 300 is fixed within the limiting hole 201 of the metal part 200, which determines the relative position of the lifting connection 300 and the metal part 200 in the embedded injection molding process. It also ensures that the lifting connection 300 is connected to both the metal part 200 and the injection shell part 100, guaranteeing the reliability of the connection and thus improving the reliability of the lifting process. Furthermore, the lifting connection 300 does not require additional fixing and positioning positions within the mold, simplifying the injection molding structure.

[0117] A portion of the lifting connection portion 300 is exposed outside the injection-molded housing portion 100 away from the receiving cavity, and is used to connect the lifting component. Exemplarily, the lifting connection portion 300 is provided with a connection hole 301 so that the lifting component can be connected to the connection hole 301.

[0118] For example, the hoisting connection 300 can be a nut, and the connection hole 301 can be a threaded hole, making the connection between the hoisting component and the connection hole 301 simple, stable and reliable.

[0119] The lifting connection part 300 is partially exposed outside the injection-molded shell part 100, which facilitates the connection of lifting components without additional machining. This simplifies the process and avoids the impact of machining on the structural strength of the first shell part 11.

[0120] In some embodiments of this application, the metal part 200 is elongated; multiple lifting connection parts 300 are provided, and the multiple lifting connection parts 300 are arranged at intervals along the extension direction of the metal part 200.

[0121] For example, two lifting connection portions 300 are provided at intervals along the extending direction of the metal portion 200.

[0122] In this embodiment, multiple hoisting connection portions 300 are provided at intervals along the extension direction of the metal portion 200 to increase the hoisting positions of the projection device, which helps to improve the reliability of the hoisting of the projection device.

[0123] With the above-described configuration, the projection device of this embodiment has a first housing 11, which is facilitated by the injection-molded housing portion 100. The metal portion 200, as an insert, is integrally formed with the injection-molded housing portion 100. This not only enhances the structural strength and stability of the first housing 11 but also reduces its weight compared to the large iron blocks used in the prior art, thereby reducing the overall weight and lowering the requirements for lifting strength. Furthermore, the first housing 11 is connected to lifting components by a lifting connection portion 300. The lifting connection portion 300 is fixed within the limiting hole 201 of the metal portion 200, ensuring the relative position of the lifting connection portion 300 and the metal portion 200 during embedded injection molding. Moreover, the portion of the lifting connection portion 300 located on the side of the metal portion 200 away from the receiving cavity is integrally formed with the injection-molded housing portion 100, ensuring the reliability of the lifting connection portion 300 connection and thus improving the reliability and stability of the lifting process.

[0124] Continue to refer to Figure 5 and Figure 10 In some embodiments of this application, the lifting connection 300 may include a limiting end 310, which is located on the side of the metal part 200 facing the receiving cavity and abuts against the metal part 200. This arrangement ensures that the lifting connection 300 is positioned in the direction of the lifting force (corresponding to...) Figure 5 The connection between the hoisting connection 300 and the metal part 200 (in the D direction) forms a limiting and abutment, preventing the hoisting connection 300 from detaching from the metal part 200. This helps to further improve the stability and reliability of the connection between the hoisting connection 300 and the metal part 200, thereby improving the stability of the hoisting.

[0125] When the cross-section of the limiting end 310 is circular, the diameter of the limiting end 310 is larger than the diameter of the limiting hole 201, so that the limiting end 310 is located outside the limiting hole 201 and abuts against the side of the metal part 200 facing the receiving cavity.

[0126] In some embodiments, the lifting connection portion 300 may further include a main body connection portion 320, which is connected to the limiting end portion 310 and fixed to the limiting hole 201. The main body connection portion 320 is integrally formed with the injection-molded shell portion 100 through the limiting hole 201, and one end of the main body connection portion 320 away from the limiting end portion 310 is exposed on the outside of the injection-molded shell portion 100 away from the receiving cavity, for connecting the lifting component.

[0127] A portion of the main body connecting part 320 is located inside the limiting hole 201 and is fixedly connected to the limiting hole 201. The other portion of the main body connecting part 320 extends out of the limiting hole 201 and is integrally formed with the injection molded shell part 100 to ensure the stability of the connection between the lifting connecting part 300 and the injection molded shell part 100.

[0128] The connecting hole 301 is provided at least in the main body connecting part 320, and the connecting hole 301 is exposed on the outside of the injection molded shell part 100 away from the receiving cavity, so as to facilitate connection with the hoisting component.

[0129] In some embodiments, a portion of the connecting hole 301 may extend to the limiting end 310 to extend the axial length of the connecting hole 301, thereby increasing the connection length between the connecting hole 301 and the hoisting component and thus improving the stability of the connection.

[0130] In some embodiments, the connecting hole 301 is a blind hole, with the open end of the connecting hole 301 exposed outside the injection-molded shell 100 away from the receiving cavity, and the limiting end 310 forming the closed end of the connecting hole 301. This helps to ensure the sealing of the first shell 11 and prevent the internal structure of the receiving cavity from being exposed.

[0131] Reference Figure 11 In some embodiments of this application, the injection-molded shell portion 100 forms a protrusion 160 on the outer side away from the receiving cavity; the hoisting connection portion 300 is integrally formed with the protrusion 160.

[0132] In this embodiment, the injection-molded shell portion 100 forms a protrusion 160 that matches the portion of the lifting connection portion 300 that protrudes from the metal portion 200 and is integrally formed with the lifting connection portion 300. This ensures the contact area between the integrally formed lifting connection portion 300 and the injection-molded shell portion 100, thereby further improving the stability of the connection between the lifting connection portion 300 and the injection-molded shell portion 100.

[0133] Compared to increasing the overall thickness of the injection-molded shell 100, forming a protrusion 160 in a certain area of ​​the injection-molded shell 100 to be integrally formed with the hoisting connection 300 can reduce the weight of the injection-molded shell 100 and reduce the amount of material used in the injection-molded shell 100.

[0134] In some embodiments, the injection-molded shell portion 100 may include a shell body portion 120, which may include a main board portion and an annular surrounding plate portion disposed at the edge of the main board portion, so that the injection-molded shell portion 100 forms a cavity with an opening on one side, which facilitates the enclosure with the second shell member to form an accommodating cavity.

[0135] The protrusion 160 can be located on the side opposite to the receiving cavity of the motherboard. Furthermore, the protrusion 160 also makes the position of the hoisting connection 300 clear, which facilitates the hoisting of the projection equipment.

[0136] Continue to refer to Figure 5 In some embodiments of this application, the injection-molded shell portion 100 is configured to form an annular limiting edge 110, which covers at least a portion of the end of the lifting connection portion 300 away from the receiving cavity; the annular limiting edge 110 encloses an opening to expose at least a portion of the lifting connection portion 300.

[0137] An annular limiting edge 110 is formed on the protrusion 160, such that the annular limiting edge 110 covers at least a portion of the end of the lifting connection 300 away from the receiving cavity. This allows the injection-molded shell 100 to form the annular limiting edge 110 in the direction of the lifting force, further increasing the contact area between the lifting connection 300 and the injection-molded shell 100, further improving the stability and reliability of the connection between the lifting connection 300 and the injection-molded shell 100, and reducing the possibility of the lifting connection 300 detaching from the injection-molded shell 100.

[0138] like Figure 5 As shown, the protrusion 160 may include a pillar 161, the axis of which may be perpendicular to the shell body portion 120. One end of the pillar 161 along its axial direction is integrally formed with the shell body portion 120, and the other end of the pillar 161 along its axial direction is integrally formed with the annular limiting edge 110.

[0139] The protrusion 160 may also include a transition portion 162, which is located between the pillar portion 161 and the shell body portion 120. The transition portion 162 may be inclined, and / or the transition portion 162 may be arc-shaped, which can reduce the stress between the pillar portion 161 and the shell body portion 120 and improve the stability and reliability of the connection between the protrusion 160 and the shell body portion 120.

[0140] Reference Figure 12 and Figure 13 A protrusion 180 is formed on the surface of the injection-molded shell portion 100 facing the receiving cavity. For example, the protrusion 180 is formed on the surface of the shell body facing the receiving cavity. The metal portion 200 is fitted into the protrusion 180, and the side of the metal portion 200 facing the receiving cavity is flush with the surface of the protrusion 180.

[0141] In this embodiment, by forming a protrusion 180 on the surface of the injection-molded shell 100 facing the accommodating cavity, the thickness of the injection-molded shell 100 can be locally increased to improve the structural strength of the injection-molded shell 100. It can also provide sufficient contact area for the integral molding of the metal part 200 and the injection-molded shell 100, which helps to improve the structural strength and stability of the first shell 11, so as to provide support for the fixation and installation of the projection body.

[0142] Continue to refer to Figure 2 and Figure 3 In some embodiments of this application, the injection-molded shell portion 100 is formed as follows:

[0143] The first reinforcing zone 140 is formed between multiple metal parts 200; multiple first reinforcing ribs 141 are provided at intervals within the first reinforcing zone 140.

[0144] The second reinforcing zone 150 is located outside the first reinforcing zone 140; a plurality of second reinforcing ribs 151 are provided at intervals within the second reinforcing zone 150.

[0145] Among them, the interval between at least two adjacent first reinforcing ribs 141 is smaller than the interval between two adjacent second reinforcing ribs 151.

[0146] In this embodiment, the structural strength of the first shell 11 is improved by forming a first reinforcing rib 141 and a second reinforcing rib 151 on the injection-molded shell portion 100. The spacing between the first reinforcing ribs 141 provided between the plurality of metal portions 200 is small, resulting in a large number of first reinforcing ribs 141 between the plurality of metal portions 200, which is beneficial to further improve the structural strength between the plurality of metal portions 200.

[0147] In some embodiments, a plurality of first reinforcing ribs 141 are evenly spaced within a first reinforcing region 140, and a plurality of second reinforcing ribs 151 are evenly spaced within a second reinforcing region 150, wherein the interval between two adjacent first reinforcing ribs 141 is smaller than the interval between two second reinforcing ribs 151.

[0148] In some specific embodiments of this application, the first reinforcing rib 141 may be in the form of a mesh, and the second reinforcing rib 151 may be in the form of a mesh, so as to further improve the structural strength.

[0149] Among them, some of the first reinforcing ribs 141 extend along the X-axis and are spaced apart along the Y-axis, with adjacent first reinforcing ribs 141 having a first gap along the Y-axis; other parts of the first reinforcing ribs 141 extend along the Y-axis and are spaced apart along the X-axis. Thus, adjacent first reinforcing ribs 141 have a second gap along the X-axis.

[0150] Some of the second reinforcing ribs 151 extend along the X-axis and are spaced apart along the Y-axis, with adjacent second reinforcing ribs 151 having a third gap along the Y-axis; other parts of the second reinforcing ribs 151 extend along the Y-axis and are spaced apart along the X-axis. Thus, adjacent second reinforcing ribs 151 have a fourth gap along the X-axis.

[0151] The first and / or second intervals are greater than the third or fourth intervals, resulting in a larger number of first reinforcing ribs 141 between the multiple metal parts 200, which can improve the structural strength of the middle region of the first shell part.

[0152] Combination Figure 3 and Figure 4 The injection-molded shell 100 is provided with a first fixing post 130, which is fixedly connected to the projection host; the first fixing post is located between two adjacent metal parts 200.

[0153] The first fixing post 130 serves as the fixing structure for the projector host and requires high strength. Positioning the first fixing post 130 between two adjacent metal parts 200 reinforces the surrounding structure.

[0154] Continue to refer to Figure 3 and Figure 4 Two second fixing posts 170 are provided on the injection-molded shell part 100, and the two second fixing posts 170 are arranged at intervals along the first direction; the second fixing posts 170 are fixedly connected to the second shell part.

[0155] The metal part 200 extends along a first direction, and one end of the metal part 200 along the first direction extends beyond one side of the two second fixing posts 170 along the first direction, and the other end of the metal part 200 along the first direction extends beyond the other side of the two second fixing posts 170 along the first direction.

[0156] Thus, in this embodiment, the two ends of the metal part 200 extending along the first direction protrude from both sides of the two second fixing posts 170 along the second direction, structurally strengthening the area between the two second fixing posts 170, which helps to ensure the stability and reliability of the connection between the injection molded shell part 100 and the second shell.

[0157] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0158] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. A projection device, characterized in that, include: The projector is configured to project an image. The housing assembly (10) is configured to form a communicating accommodating cavity and a light-emitting port, the accommodating cavity being used to accommodate the projection host, and the light-emitting port being opposite to the lens of the projection host; the housing assembly (10) includes: a first housing member (11); the first housing member (11) includes: Injection molded shell part (100); A metal part (200) is located on the side of the injection-molded shell part (100) facing the receiving cavity, and the metal part (200) is integrally formed with the injection-molded shell part (100); the metal part (200) is provided with a limiting hole (201); A lifting connection part (300) is fixed to the limiting hole (201); a portion of the lifting connection part (300) is located on the side of the metal part (200) away from the accommodating cavity, and is integrally formed with the injection-molded shell part (100); a portion of the lifting connection part (300) is exposed on the outside of the injection-molded shell part (100) away from the accommodating cavity, and is used to connect the lifting component.

2. The projection device according to claim 1, characterized in that, The hoisting connection (300) includes: The limiting end (310) is located on the side of the metal part (200) facing the receiving cavity and abuts against the metal part (200); The main body connecting part (320) is connected to the limiting end (310) and fixed to the limiting hole (201); the main body connecting part (320) passes through the limiting hole (201) and is integrally formed with the injection molded shell part (100), and the end of the main body connecting part (320) away from the limiting end (310) is exposed on the outside of the injection molded shell part (100) away from the receiving cavity, for connecting the lifting component.

3. The projection device according to claim 1, characterized in that, The injection-molded shell portion (100) is configured to form an annular limiting edge (110), which covers at least a portion of the end of the lifting connection portion (300) away from the receiving cavity; the annular limiting edge (110) forms an opening to expose at least a portion of the lifting connection portion (300).

4. The projection device according to claim 1, characterized in that, The metal part (200) is elongated; The hoisting connection (300) is provided in multiple ways, and the multiple hoisting connection (300) are arranged at intervals along the extension direction of the metal part (200).

5. The projection device according to claim 1, characterized in that, The metal portion (200) extends along a first direction; The metal portion (200) is provided in a plurality of such portions, and the plurality of metal portions (200) extend along the second direction of the injection-molded shell portion (100); The second direction intersects the first direction; the first direction is perpendicular to the second direction, and the dimension of the injection-molded shell portion (100) along the first direction is greater than the dimension of the injection-molded shell portion (100) along the second direction.

6. The projection device according to claim 5, characterized in that, A first fixing post (130) is provided on the injection-molded shell part (100), and the first fixing post (130) is fixedly connected to the projection host; The first fixing post (130) is located between two adjacent metal parts (200).

7. The projection device according to claim 5, characterized in that, The injection-molded shell portion (100) is formed as follows: A first reinforcing region (140) is formed between a plurality of the metal parts (200); a plurality of first reinforcing ribs (141) are provided at intervals within the first reinforcing region (140); The second reinforcing zone (150) is located outside the first reinforcing zone (140); a plurality of second reinforcing ribs (151) are provided at intervals within the second reinforcing zone (150); Wherein, the interval between at least two adjacent first reinforcing ribs (141) is smaller than the interval between two adjacent second reinforcing ribs (151).

8. The projection device according to any one of claims 1-7, characterized in that, The metal part (200) includes: Metal body part (210); At least one stepped portion (220) is provided on the side of the metal body portion (210) opposite to the receiving cavity; The limiting hole (201) penetrates the stepped portion (220) and the metal body portion (210).

9. The projection device according to any one of claims 1-7, characterized in that, The injection-molded shell portion (100) forms a protrusion (160) on the outer side away from the receiving cavity; The hoisting connection (300) and the protrusion (160) are integrally formed.

10. The projection device according to any one of claims 1-7, characterized in that, The outer shell assembly (10) further includes a second shell member, which is fixedly connected to the injection-molded shell portion (100) and surrounds the receiving cavity; The injection-molded shell portion (100) is provided with two second fixing posts (170), which are arranged at intervals along a first direction; the second fixing posts (170) are fixedly connected to the second shell component; The metal part (200) extends along the first direction, and one end of the metal part (200) along the first direction extends beyond one side of the two second fixing posts (170) along the first direction, and the other end of the metal part (200) along the first direction extends beyond the other side of the two second fixing posts (170) along the first direction.

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