Projection device

Abstract

The utility model relates to projection equipment, the projection equipment comprises a shell and a function module arranged in the shell, the shell comprises a middle frame assembly, a first end cover and a second end cover, the middle frame assembly is used for sleeving the function module, and the first end cover is connected to one end of the middle frame assembly; the second end cover is connected to the other end of the middle frame assembly; the middle frame assembly comprises a middle frame body and an adapter, the middle frame body is of a hollow structure with two open ends, one end of the inner wall of the middle frame body is provided with a first connecting part used for being connected with the first end cover, and the other end of the inner wall of the middle frame body is provided with a second connecting part used for being connected with the second end cover. The adapter is arranged in the middle frame body, one end of the adapter is connected with the first connecting part, the other end of the adapter is connected with the second connecting part, and the adapter is provided with a limiting structure used for being matched with the function module in a limiting mode. According to the projection equipment, the manufacturing process difficulty and the assembling difficulty of the middle frame assembly are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of projection equipment, and in particular to a projection device. BACKGROUND

[0002] With the development of electronic technology, projection devices are increasingly present in people's work, study and life scenes. The projection device generally includes a shell, an engine, a heat dissipation component, a sound and a mainboard and the like. In order to improve the efficiency of assembly and maintenance, and at the same time improve the space utilization, the projection device usually integrates the engine, the heat dissipation component, the sound and the mainboard and the like on a main support to form a functional module, and then the functional module is installed in the shell as a whole.

[0003] In order to cooperate with the internal functional module, the shell of the projection device is usually divided into three parts of a front cover, a middle frame and a rear cover. Among them, the middle frame needs to reserve a cooperation structure for cooperation with the front cover, the rear cover and the internal functional module.

[0004] In the related art, the shell of the projection device generally adopts an aluminum extrusion middle frame or an aluminum plastic middle frame. The aluminum extrusion middle frame needs to be integrally formed by aluminum extrusion to form a connecting structure to connect the front cover, the rear cover and the internal functional module, which has high cost and complex process. The aluminum plastic middle frame needs to attach and press the aluminum skin on the surface of the plastic support, and then connect the front cover, the rear cover and the internal functional module through the plastic support, which also has the problems of complex process and high assembly difficulty. Utility model content

[0005] Therefore, it is necessary to provide a projection device for reducing the process and assembly difficulty of the shell of the projection device.

[0006] The present application provides a projection device, comprising:

[0007] a functional module, the functional module comprising an optical engine for projecting an image;

[0008] a shell for accommodating the functional module, the shell comprising:

[0009] a middle frame assembly sleeved outside the functional module;

[0010] a first end cover connected to one end of the middle frame assembly;

[0011] a second end cover connected to the other end of the middle frame assembly;

[0012] wherein the middle frame assembly comprises:

[0013] The middle frame body is a hollow structure with open ends, one end of the inner wall of the middle frame body is provided with a first connecting part for connecting with the first end cover, and the other end of the inner wall of the middle frame body is provided with a second connecting part for connecting with the second end cover; and

[0014] The adapter is arranged in the middle frame body, one end of the adapter is connected with the first connecting part, the other end of the adapter is connected with the second connecting part, and the adapter is provided with a limiting structure for limiting cooperation with the functional module.

[0015] The technical scheme is further described as follows:

[0016] In one embodiment, the first connecting part is provided with a first connecting hole, one end of the adapter is provided with a first connecting column, the first connecting column is provided with a first threaded hole, the first threaded hole is arranged in position with the first connecting hole, and the middle frame assembly further comprises a first fastener, the first fastener is arranged in the first connecting hole and threadedly cooperates with the first threaded hole; and / or,

[0017] The second connecting part is provided with a second connecting hole, the other end of the adapter is provided with a second connecting column, the second connecting column is provided with a second threaded hole, the second threaded hole is arranged in position with the second connecting hole, and the middle frame assembly further comprises a second fastener, the second fastener is arranged in the second connecting hole and threadedly cooperates with the second threaded hole.

[0018] In one embodiment, the limiting structure comprises a limiting groove arranged on the side of the adapter close to the functional module, the limiting groove extends in the direction from the first end cover to the second end cover, and the limiting groove is used for limiting cooperation with the functional module.

[0019] In one embodiment, the middle frame body comprises a top wall, a bottom wall arranged opposite to the top wall, and two side walls respectively connected between the top wall and the bottom wall and arranged opposite to each other;

[0020] The inner side of each side wall is provided with the first connecting part and the second connecting part, and the first connecting part and the second connecting part are respectively located at two ends of the inner side of the side wall;

[0021] The number of adapters is two, the two adapters are arranged one by one on the inner sides of the two side walls, and two ends of each adapter are respectively connected with the corresponding first connecting part and second connecting part, and each adapter is provided with the limiting structure.

[0022] In one of the embodiments, one end of the inner side of the top wall and one end of the inner side of the bottom wall are further provided with third connecting parts for connecting with the first end cover;

[0023] The other end of the inner side of the top wall and the other end of the inner side of the bottom wall are further provided with fourth connecting parts for connecting with the second end cover.

[0024] In one of the embodiments, corners are formed between the side wall and the top wall and between the side wall and the bottom wall;

[0025] The first connecting part and the adjacent third connecting part have a first interval at the corner;

[0026] The second connecting part and the adjacent fourth connecting part have a second interval at the corner.

[0027] In one of the embodiments, a first connecting piece is provided at the first interval, one end of the first connecting piece is connected with the first connecting part, the other end of the first connecting piece is connected with the third connecting part, the first connecting piece has a first supporting surface facing the corner, and the shape of the first supporting surface matches the shape of the corner;

[0028] In one of the embodiments, a second connecting piece is provided at the second interval, one end of the second connecting piece is connected with the second connecting part, the other end of the second connecting piece is connected with the fourth connecting part, the second connecting piece has a second supporting surface facing the corner, and the shape of the second supporting surface matches the shape of the corner.

[0029] In one of the embodiments, both ends of the first connecting piece are provided with third connecting holes, the first connecting part and the third connecting part are provided with fourth connecting holes aligned with the third connecting holes, the middle frame assembly further comprises a third fastener, and the third fastener is arranged in the third connecting hole and the fourth connecting hole; and / or,

[0030] Both ends of the second connecting piece are provided with fifth connecting holes, the second connecting part and the fourth connecting part are provided with sixth connecting holes aligned with the fifth connecting holes, and the middle frame assembly further comprises a fourth fastener, and the fourth fastener is arranged in the fifth connecting hole and the sixth connecting hole.

[0031] In one of the embodiments, both ends of the first connecting piece are provided with first positioning protrusions, the first connecting part and the third connecting part are provided with first positioning holes, and the first positioning protrusions are inserted into the first positioning holes; and / or,

[0032] The second connecting piece is provided with a second positioning protrusion at both ends, the second connecting part and the fourth connecting part are provided with a second positioning hole, and the second positioning protrusion is inserted into the second positioning hole.

[0033] In one of the embodiments, the first connecting part and the third connecting part are provided with a first clamping groove, the first end cover is provided with a first clamping buckle, and the first clamping buckle is clamped and matched with the first clamping groove; and / or,

[0034] The second connecting part and the fourth connecting part are provided with a second clamping groove, the second end cover is provided with a second clamping buckle, and the second clamping buckle is clamped and matched with the second clamping groove.

[0035] In one of the embodiments, the first connecting part and the third connecting part are provided with a third positioning hole, the first end cover is provided with a third positioning protrusion, and the third positioning protrusion is inserted into the third positioning hole; and / or,

[0036] The second connecting part and the fourth connecting part are provided with a fourth positioning hole, the second end cover is provided with a fourth positioning protrusion, and the fourth positioning protrusion is inserted into the fourth positioning hole.

[0037] In one of the embodiments, the side wall is provided with a heat dissipation hole for heat dissipation, the adapter is provided with a heat dissipation window, and the heat dissipation window is arranged opposite to the heat dissipation hole on the side wall; and / or,

[0038] The bottom wall is provided with a heat dissipation hole for heat dissipation.

[0039] In one of the embodiments, the side wall is provided with a first rotating shaft hole, the adapter is provided with a second rotating shaft hole opposite to the first rotating shaft hole, the first rotating shaft hole and the second rotating shaft hole are used for penetrating a rotating shaft of a hanging rack, and the hanging rack is used for hoisting the projection device; and / or,

[0040] The bottom wall is provided with a support hole for mounting a support frame, and the support frame is used for supporting the projection device; and / or,

[0041] The top wall is provided with a key hole for mounting a key and an indicator hole for mounting an indicator.

[0042] The projection device has the advantages that the first connecting portion and the second connecting portion are arranged at the two ends of the inner wall of the middle frame body respectively, the first end cover is connected to the first connecting portion, the second end cover is fixed to the second connecting portion, the adapter is connected between the first connecting portion and the second connecting portion, the limiting structure on the adapter is limited and matched with the functional module, and finally the first end cover, the second end cover and the functional module are fixed and installed on the middle frame body. Compared with the traditional aluminum extrusion middle frame formed by integrating the shunt mode, the middle frame assembly of the projection device has the limiting structure limiting and matched with the functional module arranged on the independent adapter, and the adapter is connected in the middle frame body, so that the matching structure for matching with the functional module does not need to be extruded synchronously when the middle frame body is formed, and the forming process difficulty of the middle frame body is reduced. Meanwhile, compared with the traditional aluminum-plastic middle frame in which the aluminum skin is attached and press-fitted on the plastic support, the first connecting portion and the second connecting portion are used to connect the first end cover, the second end cover and the adapter to the middle frame body, the gluing, attaching and pressure maintaining and other processes are omitted, and the assembly difficulty of the middle frame assembly is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0043] The accompanying drawings, which form a part of the present application, are intended to provide further understanding of the present application, and are used to interpret the illustrative embodiments of the present application and their descriptions, and do not constitute improper limitations to the present application.

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the accompanying drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and other accompanying drawings can be obtained by those skilled in the art without any creative effort.

[0045] In addition, the drawings are not drawn in the ratio of 1:1, and the relative sizes of the various elements are only exemplarily drawn in the drawings, but not necessarily drawn in the true ratio. In the drawings:

[0046] Figure 1 The structure of the projection device is shown in the drawings.

[0047] Figure 2 The structure of the projection device is shown in the drawings. Figure 1 The structure of the projection device is shown in the drawings.

[0048] Figure 3 The structure of the middle frame assembly is shown in the drawings.

[0049] Figure 4 The structure of the middle frame assembly is shown in the drawings. Figure 3 The structure of the middle frame assembly is shown in the drawings.

[0050] Figure 5 The structure of the middle frame assembly is shown in the drawings.Figure 3 The front view of the middle frame component shown.

[0051] Figure 6 for Figure 3 The rear view of the middle frame component shown.

[0052] Figure 7 This is a schematic diagram of the structure of an adapter according to one embodiment.

[0053] Figure 8 This is a schematic diagram of the structure of the first connector in one embodiment.

[0054] Figure 9 This is a schematic diagram of the structure of the second connector in one embodiment.

[0055] Figure 10 for Figure 3 The bottom view of the middle frame component shown.

[0056] Explanation of reference numerals in the attached figures:

[0057] 1. Mid-frame assembly; 10. Mid-frame body; 11. Top wall; 111. Button hole; 112. Indicator light hole; 12. Bottom wall; 121. Bracket hole; 13. Side wall; 131. First pivot hole; 132. Heat dissipation hole; 14. First connecting part; 141. First connecting hole; 142. Fourth connecting hole; 143. First positioning hole; 145. First slot; 146. Third positioning hole; 15. Second connecting part; 151. Second connecting hole; 152. Sixth connecting hole; 153. Second positioning hole; 155. Second slot; 156. Fourth positioning hole; 16. Third connecting part; 1 7. Fourth connecting part; 181. First gap; 182. Second gap; 19. Corner; 20. Adapter; 21. Limiting groove; 22. First connecting post; 221. First threaded hole; 23. Second connecting post; 231. Second threaded hole; 24. Heat dissipation window; 25. Second pivot hole; 31. First connecting piece; 311. First support surface; 312. Third connecting hole; 313. First positioning protrusion; 32. Second connecting piece; 321. Second support surface; 322. Fifth connecting hole; 323. Second positioning protrusion; 4. First end cap; 5. Second end cap; 6. Functional module. Detailed Implementation

[0058] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0059] In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0060] In addition, if there are terms such as "first", "second", these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0061] In the present application, unless otherwise explicitly specified and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be interpreted broadly. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0062] In the present application, unless otherwise explicitly specified and limited, if there are similar descriptions such as "first feature on" or "below" the second feature, the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0063] It is to be noted that when an element is referred to as being "fixed" or "set" on another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar terms as used herein only mean for the purpose of illustration and are not meant to be limiting.

[0064] As described above, the shell of the conventional projection device generally adopts an aluminum extrusion middle frame or an aluminum-plastic middle frame. Specifically, the aluminum extrusion middle frame is generally formed by a split die integrated aluminum extrusion. However, the split die in a hollow form inevitably causes appearance defects such as welding lines at the corner parts of the aluminum extrusion middle frame. Meanwhile, in order to ensure the overall strength of the aluminum extrusion middle frame, the wall thickness of the aluminum extrusion middle frame needs to be designed to be relatively thick, which causes the feature holes such as heat dissipation holes and rotating shaft holes on the surface of the aluminum extrusion middle frame to be machined by a numerical control machine tool, resulting in a high machining cost. In addition, due to the limitation of the aluminum extrusion process, only simple features and functional modules can be made inside the middle frame, which not only has insufficient structural strength but also has a more complex manufacturing process.

[0065] The aluminum-plastic middle frame includes a ring-shaped plastic support and an aluminum skin wrapped outside the ring-shaped plastic support. The aluminum-plastic middle frame fixes the front cover, the rear cover, and the internal functional modules through the internal ring-shaped plastic support. However, when assembling the aluminum-plastic middle frame, the aluminum material needs to be punched to form the aluminum skin, and then the aluminum skin is bent and attached to the outer circumferential surface of the plastic support. In order to ensure that the aluminum skin is tightly and reliably attached to the plastic support, a pressure maintaining process needs to be added during the attachment process. The entire attachment process is difficult and complex to operate, and has a high requirement for the punching precision of the aluminum skin.

[0066] Therefore, the present application provides a projection device with a simple process and convenient assembly. Specifically, referring to Figure 1 and Figure 2 The projection device of an embodiment includes a shell and a functional module 6 arranged in the shell, wherein the functional module 6 at least includes an optical engine for projecting an image. Understandably, in some embodiments, the functional module 6 can further include but is not limited to a heat dissipation component for heat dissipation, a sound device for sound production, and a control mainboard, and the like. These functional components can be integrated on a main support to form a modular functional module 6.

[0067] Continuing to refer to Figure 1 and Figure 2Specifically, the shell comprises a middle frame assembly 1, a first end cover 4 and a second end cover 5, wherein the middle frame assembly 1 is used for sleeving outside the functional module 6, the first end cover 4 is connected at one end of the middle frame assembly 1, and the second end cover 5 is connected at the other end of the middle frame assembly 1. The middle frame assembly 1, the first end cover 4 and the second end cover 5 jointly enclose a cavity for accommodating the functional module 6.

[0068] Specifically, referring to Figure 3 and Figure 4 , the middle frame assembly 1 comprises a middle frame body 10 and an adapter 20, the middle frame body 10 is a hollow structure, and exemplarily, the middle frame body 10 is a ring-shaped cylindrical structure. Figure 5 and Figure 6 , one end of the inner wall of the middle frame body 10 is provided with a first connecting portion 14 for connecting with the first end cover 4, and the other end of the inner wall of the middle frame body 10 is provided with a second connecting portion 15 for connecting with the second end cover 5. The adapter 20 is arranged in the middle frame body 10, one end of the adapter 20 is connected with the first connecting portion 14, the other end of the adapter 20 is connected with the second connecting portion 15, and the adapter 20 is provided with a limiting structure for limiting cooperation with the functional module 6.

[0069] In the above projection device, by arranging the first connecting portion 14 and the second connecting portion 15 at the two ends of the inner wall of the middle frame body 10 respectively, connecting the first end cover 4 to the first connecting portion 14 and fixing the second end cover 5 to the second connecting portion 15, and connecting the adapter 20 between the first connecting portion 14 and the second connecting portion 15, the limiting structure on the adapter 20 is limited to cooperate with the functional module 6, and finally the first end cover 4, the second end cover 5 and the functional module 6 are fixedly installed on the middle frame assembly 1. Compared with the traditional aluminum extrusion middle frame formed by integrating the shunt module, the middle frame assembly 1 of the projection device of the present application forms the limiting structure for limiting cooperation with the functional module 6 on the independent adapter 20, and then connects the adapter 20 in the middle frame body 10, so that the cooperation structure for cooperating with the functional module 6 does not need to be extruded synchronously when the middle frame body 10 is formed, thereby reducing the difficulty of the forming process of the middle frame body 10. At the same time, compared with the traditional aluminum-plastic middle frame which needs to attach and press the aluminum skin to the plastic support, the middle frame assembly 1 of the present application can connect the first end cover 4, the second end cover 5 and the adapter 20 to the middle frame body 10 by means of the first connecting portion 14 and the second connecting portion 15, thereby saving the processes of gluing, attaching and pressure pressing, and reducing the assembly difficulty of the middle frame assembly 1.

[0070] Optionally, in an embodiment, the material of the middle frame body 10 is metal such as aluminum, so as to improve the overall appearance quality of the projection device. The adapter 20 is made of plastic material, for example, the adapter 20 is a plastic plate, so as to reduce the cost while reinforcing the overall structure of the middle frame assembly 1, and ensuring that the functional module 6 is stably positioned in the shell. In addition, the functional module 6 is fixed by the adapter 20 made of plastic material, so that the structural strength requirement of the middle frame assembly 1 for the metal middle frame body 10 is reduced, which can effectively reduce the wall thickness requirement of the middle frame body 10, on the one hand, the manufacturing cost of the middle frame body 10 is reduced, on the other hand, due to the reduction of the wall thickness of the middle frame body 10, the middle frame body 10 can be first formed by using a flat flow die to extrude a metal plate with the first connecting portion 14 and the second connecting portion 15, and then the metal plate is bent to form a ring-shaped cylindrical middle frame body 10. Compared with the traditional ring-shaped cylindrical aluminum extrusion middle frame formed by using a separate flow die, the middle frame body 10 of the present application can be formed by using a flat flow die, so as to avoid the appearance defects such as welding lines at the corner parts of the middle frame caused by using a separate flow die, and further improve the overall appearance of the projection device.

[0071] Exemplarily, in an embodiment, the first connecting portion 14 and the second connecting portion 15 are both protrusions on the adapter 20, which protrude towards the side close to the functional module 6 and extend along the width direction of the adapter 20, so as to ensure that the first end cover 4, the second end cover 5 and the adapter 20 are stably fixed on the middle frame body 10. Understandably, in other embodiments, the first connecting portion 14 and the second connecting portion 15 can also be buckles or other structures.

[0072] Referring to Figure 5 Optionally, in an embodiment, the first connecting portion 14 is provided with a first connecting hole 141, and the second connecting portion 15 is provided with a second connecting hole 151, so as to Figure 7The first connecting column 22 of the adapter 20 is provided with a first threaded hole 221, and the first threaded hole 221 is arranged in position with the first connecting hole 141. The middle frame assembly 1 further comprises a first fastener (not shown), which is arranged in the first connecting hole 141 and is threadedly connected with the first threaded hole 221, so as to realize the fixed connection of the adapter 20 and the first connecting portion 14. Exemplarily, the first connecting portion 14 is provided with a plurality of first connecting holes 141, which are arranged at intervals along the length direction of the first connecting portion 14. The adapter 20 is provided with a plurality of first connecting columns 22, which are arranged at intervals along the width direction of the adapter 20 at one end of the adapter 20. Each first connecting column 22 is provided with a first threaded hole 221, and a plurality of first threaded holes 221 are arranged in position with a plurality of first connecting holes 141. Each first connecting hole 141 is provided with a first fastener, so as to improve the connection stability of the adapter 20 and the first connecting portion 14. Optionally, the first fastener can be a screw.

[0073] Specifically, the first connecting portion 14 and the adapter 20 are threadedly connected by the first fastener, which facilitates the installation and disassembly of the adapter 20, so as to facilitate the replacement and maintenance of the adapter 20 in the later period. It should be noted that, in other embodiments, the first connecting portion 14 and the adapter 20 can also be connected and fixed by means of gluing, welding, buckling and the like, which is not limited herein.

[0074] Similarly, referring to FIG. 1 and FIG. 2, Figure 6 In an embodiment, the second connecting portion 15 is provided with a second connecting hole 151, and the other end of the adapter 20 is provided with a second connecting column 23. The second connecting column 23 is provided with a second threaded hole 231, and the second threaded hole 231 is arranged in position with the second connecting hole 151. The middle frame assembly 1 further comprises a second fastener (not shown), which is arranged in the second connecting hole 151 and is threadedly connected with the second threaded hole 231, so as to realize the fixed connection of the adapter 20 and the second connecting portion 15. Exemplarily, the second connecting portion 15 is provided with a plurality of second connecting holes 151, which are arranged at intervals along the length direction of the second connecting portion 15. The adapter 20 is provided with a plurality of second connecting columns 23, which are arranged at intervals along the width direction of the adapter 20 at the other end of the adapter 20. Each second connecting column 23 is provided with a second threaded hole 231, and a plurality of second threaded holes 231 are arranged in position with a plurality of second connecting holes 151. Each second connecting hole 151 is provided with a second fastener, so as to improve the connection stability of the adapter 20 and the second connecting portion 15. Optionally, the second fastener can be a screw.

[0075] Likewise, the second connecting part 15 and the adapter 20 are threadedly connected by a second fastener, facilitating the installation and removal of the adapter 20, thereby facilitating the replacement and maintenance of the adapter 20 in the later stage. It is worth noting that in other embodiments, the second connecting part 15 and the adapter 20 can also be connected and fixed by means of gluing, welding, buckling, etc., which is not limited here.

[0076] Continuing to refer to Figure 7 Optionally, in an embodiment, the limiting structure includes a limiting groove 21 opened on the side of the adapter 20 close to the functional module 6, the limiting groove 21 extending in the direction from the first end cover 4 to the second end cover 5, and the limiting groove 21 being used for limiting cooperation with the functional module 6. Illustratively, the main support of the functional module 6 is provided with a limiting protrusion, and the limiting protrusion is embedded in the limiting groove 21, thereby achieving limiting of the functional module 6. Understandably, in other embodiments, the limiting structure can also be a rib for abutting and limiting the functional module 6, or a buckle for clamping and limiting the functional module 6, or a screw hole for screwing and limiting the functional module 6, etc., which is not limited here.

[0077] Referring to Figure 3 In an embodiment, the middle frame main body 10 includes a top wall 11 and a bottom wall 12 arranged opposite to each other, and two side walls 13 respectively connected between the top wall 11 and the bottom wall 12 and arranged opposite to each other. The inner side of each side wall 13 is provided with a first connecting part 14 and a second connecting part 15, and the first connecting part 14 and the second connecting part 15 are respectively located at both ends of the inner side of the side wall 13. In combination Figure 4 The number of adapters 20 is two, and the two adapters 20 are arranged one by one on the inner sides of the two side walls 13, and the two ends of each adapter 20 are respectively connected with the corresponding first connecting part 14 and the second connecting part 15, and each adapter 20 is provided with a limiting structure. By using the limiting structures on the two oppositely arranged adapters 20, the opposite sides of the functional module 6 can be simultaneously limited, thereby improving the fixing effect of the functional module 6

[0078] Referring to Figure 5 Optionally, in an embodiment, one end of the inner side of the top wall 11 and one end of the inner side of the bottom wall 12 are also provided with a third connecting part 16 for connecting with the first end cover 4. Specifically, the first end cover 4 is connected on the two first connecting parts 14 and the two third connecting parts 16 at the same time, thereby improving the installation stability of the first end cover 4.

[0079] Similarly, referring to Figure 6In an embodiment, the other end of the inner side of the top wall 11 and the other end of the inner side of the bottom wall 12 are also provided with fourth connecting portions 17 for connecting with the second end cover 5. Similarly, the second end cover 5 is connected on the two second connecting portions 15 and the two fourth connecting portions 17 at the same time, so as to improve the mounting stability of the second end cover 5.

[0080] Exemplarily, in an embodiment, the third connecting portions 16 and the fourth connecting portions 17 are all protrusions provided on the adapter 20, which protrude towards the side close to the functional module 6 and extend along the width direction of the adapter 20. The third connecting portions 16 and the fourth connecting portions 17 with the protrusion structure can further strengthen the mounting stability of the first end cover 4 and the second end cover 5. Understandably, in other embodiments, the third connecting portions 16 and the fourth connecting portions 17 can also be buckles or other structures.

[0081] Referring to Figure 5 , the corners 19 are formed between the side wall 13 and the top wall 11 and between the side wall 13 and the bottom wall 12. Specifically, as described above, the middle frame body 10 is formed by bending a metal plate, and the corners 19 are formed at the bending positions of the metal plate. Optionally, in an embodiment, the corners 19 of the middle frame body 10 are rounded corners. The rounded corners can effectively disperse stress, avoid stress concentration at the corners 19 of the middle frame body 10, and ensure smooth transition at the corners 19 of the middle frame body 10, thereby improving the appearance and avoiding scratching the user.

[0082] Continuing to refer to Figure 5 Further, the first connecting portion 14 and the adjacent third connecting portion 16 have a first spacing 181 at the corner 19, which can provide a clearance space for the first connecting portion 14 and the third connecting portion 16. When the metal plate is bent to form the middle frame body 10, the first connecting portion 14 and the third connecting portion 16 can avoid material accumulation at the corner 19, so that the middle frame body 10 is easier to bend, and the middle frame body 10 has good shape accuracy at the corner 19.

[0083] Similarly, referring to Figure 6 , the second connecting portion 15 and the adjacent fourth connecting portion 17 have a second spacing 182 at the corner 19, which can provide a clearance space for the second connecting portion 15 and the fourth connecting portion 17. When the metal plate is bent to form the middle frame body 10, the second connecting portion 15 and the fourth connecting portion 17 can avoid material accumulation at the corner 19, so that the middle frame body 10 is easier to bend, and the middle frame body 10 has good shape accuracy at the corner 19.

[0084] Referring to Figure 5In an embodiment, the first connecting member 31 is arranged at the first interval 181, and one end of the first connecting member 31 is connected with the first connecting portion 14, and the other end of the first connecting member 31 is connected with the third connecting portion 16; in combination Figure 8 The first connecting member 31 has a first supporting surface 311 facing the corner 19, and the shape of the first supporting surface 311 matches the shape of the corner 19; for example, the first connecting member 31 is a metal sheet member in L shape, the first supporting surface 311 of the first connecting member 31 is arranged at the corner of the L-shaped metal sheet member, and the first supporting surface 311 is an arc surface, so as to adapt to the rounded corner 19.

[0085] Specifically, the first connecting member 31 is used to connect the adjacent first connecting portion 14 and the third connecting portion 16, so as to reinforce the structure of the middle frame body 10 at the first interval 181, improve the structural strength of the first connecting portion 14 and the third connecting portion 16, and at the same time, the first supporting surface 311 of the first connecting member 31 can support the corresponding corner 19, improve the structural strength of the corner 19, and reduce the risk of deformation of the corner 19 under impact.

[0086] Similarly, referring to Figure 6 In an embodiment, the second connecting member 32 is arranged at the second interval 182, and one end of the second connecting member 32 is connected with the second connecting portion 15, and the other end of the second connecting member 32 is connected with the fourth connecting portion 17; in combination Figure 9 The second connecting member 32 has a second supporting surface 321 facing the corner 19, and the shape of the second supporting surface 321 matches the shape of the corner 19; for example, the second connecting member 32 is a metal sheet member in L shape, the second supporting surface 321 of the second connecting member 32 is arranged at the corner of the L-shaped metal sheet member, and the second supporting surface 321 is an arc surface, so as to adapt to the rounded corner 19.

[0087] Similarly, the second connecting member 32 is used to connect the adjacent second connecting portion 15 and the fourth connecting portion 17, so as to reinforce the structure of the middle frame body 10 at the second interval 182, improve the structural strength of the second connecting portion 15 and the fourth connecting portion 17, and at the same time, the second supporting surface 321 of the second connecting member 32 can support the corresponding corner 19, improve the structural strength of the corner 19, and reduce the risk of deformation of the corner 19 under impact.

[0088] Referring to Figure 8 Optionally, in an embodiment, the two ends of the first connecting member 31 are both provided with third connecting holes 312. In combination Figure 5The first connecting part 14 and the third connecting part 16 are both provided with fourth connecting holes 142 which are aligned with the third connecting holes 312, and the middle frame assembly 1 further comprises a third fastener (not shown) which is arranged in the third connecting holes 312 and the fourth connecting holes 142. Exemplarily, the third fastener is a screw, so that the first connecting member 31 is convenient to install and disassemble. Understandably, in other embodiments, the first connecting member 31 can also be clamped or glued to the first connecting part 14 and the third connecting part 16, which is not limited here.

[0089] Continuing to refer to Figure 8 In an embodiment, both ends of the first connecting member 31 are provided with first positioning protrusions 313, and the first connecting part 14 and the third connecting part 16 are both provided with first positioning holes 143 in which the first positioning protrusions 313 are arranged. Figure 5 The first positioning protrusions 313 and the first positioning holes 143 are matched, so that the third connecting holes 312 and the fourth connecting holes 142 can be quickly aligned, and the installation efficiency and accuracy of the first connecting member 31 are improved.

[0090] Similarly, referring to Figure 9 In an embodiment, both ends of the second connecting member 32 are provided with fifth connecting holes 322, and the second connecting part 15 and the fourth connecting part 17 are both provided with sixth connecting holes 152 which are aligned with the fifth connecting holes 322. Figure 6 The middle frame assembly 1 further comprises a fourth fastener (not shown) which is arranged in the fifth connecting holes 322 and the sixth connecting holes 152. Exemplarily, the fourth fastener is a screw, so that the second connecting member 32 is convenient to install and disassemble. Understandably, in other embodiments, the second connecting member 32 can also be clamped or glued to the second connecting part 15 and the fourth connecting part 17, which is not limited here.

[0091] Continuing to refer to Figure 9 In an embodiment, both ends of the second connecting member 32 are provided with second positioning protrusions 323, and the second connecting part 15 and the fourth connecting part 17 are both provided with second positioning holes 153 in which the second positioning protrusions 323 are arranged. Figure 6 The second positioning protrusions 323 and the second positioning holes 153 are matched, so that the fifth connecting holes 322 and the sixth connecting holes 152 can be quickly aligned, and the installation efficiency and accuracy of the second connecting member 32 are improved.

[0092] Referring to Figure 5In an embodiment, the first connecting portion 14 and the third connecting portion 16 are each provided with a first clamping groove 145, and the first end cover 4 is provided with a first clamping buckle which is clamped and matched with the first clamping groove 145, so as to realize the fixed connection of the first end cover 4 with the first connecting portion 14 and the third connecting portion 16. Exemplarily, the first connecting portion 14 and the third connecting portion 16 are each provided with a plurality of first clamping grooves 145 at intervals, and the first end cover 4 is provided with a plurality of first clamping buckles at intervals, and the plurality of first clamping buckles are clamped and matched with the plurality of first clamping grooves 145 one by one, so as to improve the connection stability of the first end cover 4 with the first connecting portion 14 and the third connecting portion 16.

[0093] Understandably, in other embodiments, the first end cover 4 and the first connecting portion 14 and the third connecting portion 16 can also be fixed by adhesion or by screws, which are not limited herein.

[0094] Continuously referring to Figure 5 In an embodiment, the first connecting portion 14 and the third connecting portion 16 are each further provided with a third positioning hole 146, and the first end cover 4 is provided with a third positioning protrusion which is inserted into the third positioning hole 146, and the third positioning protrusion is matched with the third positioning hole 146, so that the first clamping buckle and the first clamping groove 145 can be quickly aligned and clamped, and the installation efficiency and accuracy of the first end cover 4 are improved. Exemplarily, the first connecting portion 14 and the third connecting portion 16 are each provided with a plurality of third positioning holes 146 at intervals, and the first end cover 4 is provided with a plurality of third positioning protrusions at intervals, and the plurality of third positioning protrusions are inserted into the plurality of third positioning holes 146 one by one, so as to further improve the installation accuracy of the first end cover 4.

[0095] Referring to Figure 6 In an embodiment, the second connecting portion 15 and the fourth connecting portion 17 are each provided with a second clamping groove 155, and the second end cover 5 is provided with a second clamping buckle which is clamped and matched with the second clamping groove 155, so as to realize the fixed connection of the second end cover 5 with the second connecting portion 15 and the fourth connecting portion 17. Exemplarily, the second connecting portion 15 and the fourth connecting portion 17 are each provided with a plurality of second clamping grooves 155 at intervals, and the second end cover 5 is provided with a plurality of second clamping buckles at intervals, and the plurality of second clamping buckles are clamped and matched with the plurality of second clamping grooves 155 one by one, so as to improve the connection stability of the second end cover 5 with the second connecting portion 15 and the fourth connecting portion 17.

[0096] Understandably, in other embodiments, the second end cover 5 and the second connecting portion 15 and the fourth connecting portion 17 can also be fixed by adhesion or by screws, which are not limited herein.

[0097] Continuously referring to Figure 6In one embodiment, both the second connecting portion 15 and the fourth connecting portion 17 are provided with fourth positioning holes 156, and the second end cover 5 is provided with fourth positioning protrusions. The fourth positioning protrusions are inserted into the fourth positioning holes 156. Through the cooperation of the fourth positioning protrusions and the fourth positioning holes 156, the second buckle and the second slot 155 can be quickly aligned and engaged, improving the installation efficiency and accuracy of the second end cover 5. Exemplarily, both the second connecting portion 15 and the fourth connecting portion 17 are provided with multiple fourth positioning holes 156 at intervals, and the second end cover 5 is provided with multiple fourth positioning protrusions at intervals. The multiple fourth positioning protrusions are inserted one-to-one into the multiple fourth positioning holes 156, thereby further improving the installation accuracy of the second end cover 5.

[0098] See Figure 3 In one embodiment, the side wall 13 of the middle frame body 10 is provided with heat dissipation holes 132 for heat dissipation, combined with Figure 7 The adapter 20 has a heat dissipation window 24, which is opposite to the heat dissipation hole 132 on the side wall 13. By using the heat dissipation window 24 and the heat dissipation hole 132, the heat generated by the functional module 6 during operation can be discharged outside the housing, preventing the functional module 6 from overheating and being damaged.

[0099] Similarly, see [link to relevant documentation] Figure 3 In one embodiment, the bottom wall 12 of the middle frame body 10 is provided with heat dissipation holes 132 for heat dissipation, thereby further accelerating the heat dissipation inside the outer shell.

[0100] See Figure 3 In one embodiment, the sidewall 13 is provided with a first pivot hole 131, which is combined with Figure 7 The adapter 20 has a second pivot hole 25 that aligns with the first pivot hole 131. Both the first pivot hole 131 and the second pivot hole 25 are used for the pivot of the hanging bracket (not shown) to pass through. The hanging bracket is used to suspend the projection equipment. Specifically, the hanging bracket can be used to suspend the projection equipment on the ceiling, and the tilt angle of the projection equipment can be adjusted by the pivot on the hanging bracket, so that the projection equipment can project a clearer image in the target area.

[0101] See Figure 10 The bottom wall 12 has bracket holes 121 for mounting a support frame. The support frame is used to support the projection equipment. Specifically, the projection equipment can be placed on a table or the ground using the support frame, thereby achieving installation-free projection equipment.

[0102] See Figure 3In an embodiment, the top wall 11 is provided with a button hole 111 for mounting a button and an indicator hole 112 for mounting an indicator light. The button can be a switch button, for example, so that a user can press the switch button through the button hole 111 to turn on or off the projector. The user can observe the indicator light through the indicator hole 112 to obtain the working status of the projection device.

[0103] The technical features of the above embodiments can be combined in any manner. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described, but it should be understood that any combination of the technical features is within the scope of the present disclosure as long as there is no contradiction.

[0104] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these are within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A projection device, characterized in that, include: A functional module, the functional module including an optical engine for projecting images; A housing for accommodating the functional module, the housing comprising: A mid-frame component, which is fitted over the functional module; A first end cap is attached to one end of the middle frame assembly; A second end cap is connected to the other end of the middle frame assembly; The middle frame component includes: A hollow, hollow frame body has a first connecting portion at one end of its inner wall for connecting to the first end cap, and a second connecting portion at the other end of its inner wall for connecting to the second end cap; and An adapter is disposed within the main body of the middle frame, with one end of the adapter connected to the first connecting part and the other end of the adapter connected to the second connecting part. The adapter is provided with a limiting structure for cooperating with the limiting of the functional module.

2. The projection device according to claim 1, characterized in that: The first connecting portion has a first connecting hole, and one end of the adapter has a protruding first connecting post. The first connecting post has a first threaded hole, which is aligned with the first connecting hole. The middle frame assembly also includes a first fastener, which passes through the first connecting hole and is threaded into the first threaded hole; and / or... The second connecting part has a second connecting hole, and the other end of the adapter has a second connecting post. The second connecting post has a second threaded hole, and the second threaded hole is aligned with the second connecting hole. The middle frame assembly also includes a second fastener, which passes through the second connecting hole and is threadedly engaged with the second threaded hole.

3. The projection device according to claim 1, characterized in that, The limiting structure includes a limiting groove formed on the side of the adapter near the functional module. The limiting groove extends along the direction from the first end cover to the second end cover and is used to limit and cooperate with the functional module.

4. The projection device according to claim 1, characterized in that, The main body of the middle frame includes a top wall, a bottom wall opposite to the top wall, and two side walls respectively connected between the top wall and the bottom wall and arranged opposite to each other; Each of the sidewalls has a first connecting portion and a second connecting portion on its inner side, and the first connecting portion and the second connecting portion are respectively located at both ends of the inner side of the sidewall; The number of adapters is two, and the two adapters are arranged one-to-one on the inner side of the two side walls. The two ends of each adapter are respectively connected to the corresponding first connecting part and second connecting part. Each adapter is provided with the limiting structure.

5. The projection device according to claim 4, characterized in that, One end of the inner side of the top wall and one end of the inner side of the bottom wall are also provided with a third connecting part for connecting with the first end cap; The other end of the inner side of the top wall and the other end of the inner side of the bottom wall are also provided with a fourth connecting part for connecting with the second end cap.

6. The projection device according to claim 5, characterized in that, Angles are formed between the sidewall and the top wall, and between the sidewall and the bottom wall; The first connecting portion and the adjacent third connecting portion have a first interval at the corner; The second connecting portion and the adjacent fourth connecting portion have a second interval at the corner.

7. The projection device according to claim 6, characterized in that, A first connector is provided at the first interval, one end of the first connector is connected to the first connecting part, and the other end of the first connector is connected to the third connecting part; the first connector has a first support surface facing the corner, and the shape of the first support surface matches the shape of the corner. A second connector is provided at the second interval, and one end of the second connector is connected to the second connecting part, and the other end of the second connector is connected to the fourth connecting part. The second connector has a second support surface facing the corner, and the shape of the second support surface matches the shape of the corner.

8. The projection device according to claim 7, characterized in that: Both ends of the first connector are provided with third connecting holes, and both the first connecting portion and the third connecting portion are provided with fourth connecting holes that align with the third connecting holes. The middle frame assembly further includes a third fastener, which passes through the third connecting holes and the fourth connecting holes; and / or, The second connector has a fifth connecting hole at both ends, and the second connecting part and the fourth connecting part have a sixth connecting hole that aligns with the fifth connecting hole. The middle frame assembly also includes a fourth fastener, which passes through the fifth connecting hole and the sixth connecting hole.

9. The projection device according to claim 7, characterized in that, Both ends of the first connector are provided with first positioning protrusions, and both the first connecting portion and the third connecting portion are provided with first positioning holes, with the first positioning protrusions inserted into the first positioning holes; and / or, The second connector has a second positioning protrusion at both ends, and the second connecting part and the fourth connecting part are both provided with a second positioning hole, with the second positioning protrusion inserted into the second positioning hole.

10. The projection device according to claim 5, characterized in that, Both the first connecting portion and the third connecting portion are provided with a first slot, and the first end cap is provided with a first buckle, which engages with the first slot; and / or, Both the second connecting portion and the fourth connecting portion are provided with a second slot, and the second end cap is provided with a second buckle, which engages with the second slot; and / or, Both the first connecting portion and the third connecting portion are provided with a third positioning hole, and the first end cap is provided with a third positioning protrusion, which is inserted into the third positioning hole; and / or, Both the second connecting part and the fourth connecting part are provided with a fourth positioning hole, and the second end cap is provided with a fourth positioning protrusion, which is inserted into the fourth positioning hole.

Images