Projection device

Abstract

The utility model discloses projection equipment, and belongs to the field of projection equipment. The projection equipment can comprise a projection equipment body, a first bonding layer and a metal decoration layer. The metal decorative layer is bonded to the top of the projection equipment body through the first bonding layer, so that the metal decorative layer can be fixed on the top of the projection equipment body without adopting a plastic bracket, and the metal decorative layer can at least decorate the top of the projection equipment body, so that the projection equipment can have a metal texture appearance; the material cost and the assembly cost required by the metal device can be reduced. In addition, the metal decoration layer is provided with the first hollow area, so that a light-transmitting area of the projection equipment body can be avoided, and normal projection of the projection equipment cannot be affected.

Description

TECHNICAL FIELD

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

[0002] In the design of medium and high-end products, small and medium-sized projection electronic products such as laser projection or micro projection are pursuing the appearance effect of metal texture and the demand for improving the appearance of products. The existing solutions include using metal plate and aluminum plastic shell for decoration.

[0003] At present, the material cost and assembly cost of the above-mentioned metal decoration scheme are still relatively high. CONTENT OF THE UTILITY MODEL

[0004] The embodiment of the present application provides a projection equipment. The technical scheme can solve the problem of high cost of the projection equipment with metal decoration in the prior art, and the technical scheme is as follows:

[0005] In one aspect, a projection equipment is provided, comprising: a projection equipment body, a first adhesive layer, and a metal decoration layer.

[0006] The top of the projection equipment body has a light transmission area, and the projection equipment body is configured to emit an image light beam through the light transmission area.

[0007] At least part of the metal decoration layer is adhered to the top of the projection equipment body through the first adhesive layer.

[0008] The metal decoration layer has a first hollow area, and at least part of the light transmission area is exposed through the first hollow area.

[0009] Optionally, the top of the projection equipment body has a first bearing groove matched with the first adhesive layer, and the first adhesive layer is adhered to the projection equipment body in the first bearing groove.

[0010] Optionally, the first bearing groove comprises a plurality of first sub-groove bodies arranged separately, and the first adhesive layer comprises a plurality of sub-adhesive layers arranged separately, the plurality of sub-adhesive layers correspond to the plurality of first sub-groove bodies, and each sub-adhesive layer is adhered to the projection equipment body in the corresponding first sub-groove body.

[0011] Optionally, the plurality of sub-adhesive layers comprise at least one first sub-adhesive layer and at least two second sub-adhesive layers.

[0012] The at least two second sub-adhesive layers are arranged in a first direction, and the at least two second sub-adhesive layers and the light transmission area are located on the same side of the at least one first sub-adhesive layer in a second direction.

[0013] The light-transmitting area is located between two adjacent second sub-adhesive layers in the first direction; and the first direction intersects the second direction.

[0014] Optionally, the metal decorative layer comprises: a first decorative layer and two second decorative layers.

[0015] The first decorative layer has the first hollowed-out area, and the first decorative layer is adhered to the top of the body of the projection device through the first adhesive layer.

[0016] The two second decorative layers are respectively fixedly connected to two sides of the first decorative layer in the first direction, and the two second decorative layers are respectively connected to two side portions of the body of the projection device in the first direction.

[0017] Optionally, the projection device further comprises: two second adhesive layers.

[0018] The two second decorative layers are respectively adhered to two side portions of the body of the projection device through the two second adhesive layers.

[0019] Optionally, the side portion of the body of the projection device has a second hollowed-out area, the second adhesive layer is distributed around the second hollowed-out area, and the second decorative layer has a plurality of air flow openings arranged in an array, the plurality of air flow openings being in communication with the second hollowed-out area.

[0020] Optionally, a side of the second decorative layer away from the first decorative layer has at least one first clamping piece, a side of the side portion of the body of the projection device away from the top has at least one first clamping groove, and the at least one first bent corner is correspondingly clamped with the at least one first clamping groove.

[0021] Optionally, the projection device further comprises: at least one second clamping piece, the second clamping piece being fixedly connected to a side of the second decorative layer facing the body of the projection device; and a side portion of the body of the projection device has at least one second clamping groove, and the at least one second clamping piece is correspondingly clamped with the at least one second clamping groove.

[0022] Optionally, the side portion of the body of the projection device has a second hollowed-out area, and a support cross beam is fixed in the second hollowed-out area, an extension direction of the support cross beam being parallel to the second direction; and a side of the support cross beam away from the second decorative layer has the second clamping groove.

[0023] The second clamping piece comprises: a first sheet body and a second sheet body fixedly connected to a side of the first sheet body; the first sheet body is fixedly connected to a side of the second decorative layer facing the body of the projection device; and the second sheet body is bent after passing through the second hollowed-out area to be bent into the second clamping groove.

[0024] The technical scheme provided by the embodiment of the application has the beneficial effects that:

[0025] The metal decoration layer is bonded to the top of the projection device body through the first bonding layer, so that the metal decoration layer can be fixed on the top of the projection device body without using a plastic support, and the metal decoration layer can at least decorate the top of the projection device body, so that the projection device can have a metal texture appearance, and the material cost and assembly cost required by the metal device can be reduced. In addition, the metal decoration layer has the first hollow area, which can avoid the light transmission area of the projection device body and will not affect the normal projection of the projection device. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0027] Figure 1 The structure schematic diagram of the projection device provided by the embodiment of the present application is provided.

[0028] Figure 2 The explosion schematic diagram of the projection device provided by the embodiment of the present application is provided.

[0029] Figure 3 The another explosion schematic diagram of the projection device provided by the embodiment of the present application is provided.

[0030] Figure 4 The structure schematic diagram of the metal decoration layer provided by the embodiment of the present application is provided.

[0031] Figure 5 The structure schematic diagram of the projection device body provided by the embodiment of the present application is provided.

[0032] Figure 6 The structure schematic diagram of the first bonding layer provided by the embodiment of the present application is provided.

[0033] Figure 7 The structure schematic diagram of the second bonding layer provided by the embodiment of the present application is provided.

[0034] Figure 8 The another structure schematic diagram of the metal decoration layer provided by the embodiment of the present application is provided.

[0035] Figure 9 The another structure schematic diagram of the metal decoration layer provided by the embodiment of the present application is provided.

[0036] Figure 10This is another schematic diagram of the projection device provided in the embodiments of this application;

[0037] Figure 11 for Figure 10 A magnified view of a portion of area A in the projection device shown;

[0038] Figure 12 This is another structural schematic diagram of the projection device provided in the embodiments of this application;

[0039] Figure 13 for Figure 12 A magnified view of area B in the projection device shown;

[0040] Figure 14 This is a schematic diagram of the structure of a projection device provided in another embodiment of this application. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0042] The competitiveness of laser projection equipment in the market is related not only to its performance but also to its appearance and texture. Some laser projection equipment requires a metallic finish, and common solutions include fabricating a metal casing using sheet metal or machining techniques; or using a plastic frame, wrapping it with a thin metal film or electroplating it, and then attaching the frame to the device using clips or bolts. Both of these methods suffer from high costs or complex assembly processes.

[0043] This application provides a projection device; please refer to the embodiments provided. Figures 1 to 4 , Figure 1 This is a schematic diagram of the structure of the projection device provided in the embodiments of this application. Figure 2 This is an exploded view of the projection device provided in an embodiment of this application. Figure 3 This is another exploded view of the projection device provided in an embodiment of this application. Figure 4 This is a schematic diagram of the structure of the metal decorative layer provided in the embodiment of this application. The projection device 000 may include: a projection device body 100, a first adhesive layer 300, and a metal decorative layer 200.

[0044] like Figure 1 As shown, the top 110 of the projection device body 100 has a light-transmitting area 101, through which the projection device body 100 emits an image beam. For example, the projection device 000 provided in this application embodiment may be a short-throw projection device, emitting an image beam from the light-transmitting area 101 of the top 110 of the device.

[0045] like Figures 2 to 3As shown, at least part of the metal decoration layer 200 is adhered to the top 110 of the projection device body 100 through the first adhesive layer 300.

[0046] As shown, the metal decoration layer 200 has a first hollow area 211, and at least part of the light-transmitting area 101 is exposed through the first hollow area 211. Figure 4

[0047] The projection device provided by the embodiments of the present application can adhere the metal decoration layer to the top of the projection device body through the first adhesive layer, so that the metal decoration layer can be fixed on the top of the projection device body without using a plastic support, the metal decoration layer can at least decorate the top of the projection device body, so that the projection device can have a metal texture appearance, and the material cost and the assembly cost of the metal device can be reduced. In addition, the metal decoration layer has the first hollow area, the light-transmitting area of the projection device body can be avoided, and the normal projection of the projection device will not be affected.

[0048] In some possible implementation manners, refer to Figure 5 and Figure 6 , Figure 5 FIG. 1 is a structural schematic diagram of a projection device provided by the embodiments of the present application, Figure 6 FIG. 2 is a structural schematic diagram of a first adhesive layer provided by the embodiments of the present application, the top 110 of the projection device body 100 has a first bearing groove 111 matched with the first adhesive layer 300, and the first adhesive layer 300 is adhered to the projection device body 100 in the first bearing groove 111.

[0049] In the embodiments of the present application, the first bearing groove 111 of the projection device body 100 can provide an adhesive position for the first adhesive layer 300, and can limit the position of the first adhesive layer 300 on the top 110 of the projection device body 100, so as to avoid the problem that the first adhesive layer 300 is not adhered in place, resulting in that the metal decoration layer 200 is not adhered in place.

[0050] In some possible implementation manners, as shown in Figure 5 the first bearing groove 111 can include a plurality of first sub-groove bodies 111a arranged separately, the first adhesive layer 300 can include a plurality of sub-adhesive layers arranged separately, the plurality of sub-adhesive layers correspond to the plurality of first sub-groove bodies 111a, and each sub-adhesive layer is adhered to the projection device body 100 in the corresponding first sub-groove body 111a.

[0051] ​Due to the relatively large area of the top 110 of the projection device body 100, the difficulty of bonding the whole first bonding layer 300 is high, and the problem of attachment wrinkles is prone to occur. In order to reduce the bonding difficulty, the first bonding layer 300 provided in the embodiment of the present application is set as a plurality of separated sub-bonding layers, and the area of each sub-bonding layer is reduced. In this way, each sub-bonding layer can be more conveniently bonded into the corresponding first sub-groove body 111a.

[0052] In some possible implementation manners, as shown in Figure 3 With Figure 6 As shown in the figure, the plurality of sub-bonding layers can include at least one first sub-bonding layer 310 and at least two second sub-bonding layers 320.

[0053] The at least two second sub-bonding layers 320 are arranged in the first direction X, and the at least two second sub-bonding layers 320 and the light transmission area 101 are located on the same side of the at least one first sub-bonding layer 310 in the second direction Y.

[0054] Among them, in the first direction X, the light transmission area 101 is located between two adjacent second sub-bonding layers 320; the first direction X intersects the second direction Y, for example, the first direction X is perpendicular to the second direction Y.

[0055] In the case where the number of the first sub-bonding layers 310 is multiple, the plurality of first sub-bonding layers 310 are arranged in the second direction Y.

[0056] Exemplarily, the first sub-groove body 111a corresponds to the sub-bonding layer one by one, and the shape of each first sub-groove body 111a matches the shape of the corresponding sub-bonding layer.

[0057] In the embodiment of the present application, for the area of the top 110 of the projection device body 100 except the light transmission area 101, at least one strip-shaped first sub-bonding layer 310 can be used for bonding, and for the periphery of the area where the light transmission area 101 of the projection device body 100 is located, a special-shaped second bonding layer 400 can be used for bonding. In this way, the metal decorative layer 200 and the top 110 of the projection device body 100 are well bonded, and the surface of the bonded metal decorative layer 200 can be kept flat, providing an aesthetic metal appearance texture.

[0058] Exemplarily, as shown in Figure 3 With Figure 4As shown, the light-transmitting area 101 is located at the edge of the top 110 of the projection device body 100 in the second direction Y, and the first hollow area 211 is located at the edge of the part of the metal decoration layer 200 for bonding the top 110 of the projection device body 100 in the second direction Y. At this time, the part of the metal decoration layer 200 for bonding the top 110 of the projection device body 100 can be in a U shape as a whole. The shape of the area surrounded by the plurality of sub-bonding layers of the first bonding layer 300 matches the above-mentioned U shape.

[0059] For example, as shown in FIG. 1, the first bonding layer 300 can include a plurality of sub-bonding layers. Figure 6 As shown, each sub-bonding layer of the first bonding layer 300 can have a plurality of first exhaust holes 301, so that when the sub-bonding layer is bonded to the projection device body 100 in the corresponding first sub-groove body 111a, the sub-bonding layer can effectively exhaust air to avoid bulging and ensure the flatness of the metal decoration layer 200 after bonding.

[0060] In some possible implementation manners, as shown in FIG. 1, the first bonding layer 300 can include a plurality of sub-bonding layers. Figure 3 As shown in FIG. 1, the first bonding layer 300 can include a plurality of sub-bonding layers. Figure 4 As shown, the metal decoration layer 200 can include a first decoration layer 210 and two second decoration layers 220.

[0061] The first decoration layer 210 has a first hollow area 211, and the first decoration layer 210 is bonded to the top 110 of the projection device body 100 through the first bonding layer 300.

[0062] The two second decoration layers 220 are respectively fixedly connected to two sides of the first decoration layer 210 in the first direction X and are respectively connected to two side portions 120 of the projection device body 100 in the first direction X.

[0063] In the embodiment of the present application, the metal decoration layer 200 also decorates the two side portions 120 of the projection device body 100, further improving the appearance of the projection device 000.

[0064] In some possible implementation manners, please refer to Figures 2-3 , Figure 7 , Figure 7 The structure diagram of the second bonding layer provided in the embodiment of the present application, the projection device 000 can also include two second bonding layers 400.

[0065] The two second decoration layers 220 are respectively bonded to the two side portions 120 of the projection device body 100 through the two second bonding layers 400.

[0066] In the embodiment of the present application, the second decoration layer 220 not only can be conveniently fixed to the side portion 120 of the projection device body 100 by bonding, but also can decorate the two side portions 120 of the projection device body 100.

[0067] In some possible implementation manners, as Figure 5 As shown in Figure 7 The top 110 of the projection device body 100 has a second bearing groove 121 matched with the second adhesive layer 400, and the second adhesive layer 400 is adhered to the projection device body 100 in the second bearing groove 121.

[0068] In the embodiment of the present application, the second bearing groove 121 of the projection device body 100 can provide an adhesive position for the second adhesive layer 400, and can limit the position of the second adhesive layer 400 on the side 120 of the projection device body 100, so as to avoid the adhesive position of the second adhesive layer 400 from deviating, thereby causing the metal decorative layer 200 to not be adhered in place.

[0069] In some possible implementation manners, as Figure 5 As shown in Figure 7 The second bearing groove 121 can include a plurality of second sub-grooves arranged separately, and the second adhesive layer 400 can include a plurality of sub-adhesive layers arranged separately, the plurality of sub-adhesive layers correspond to the plurality of second sub-grooves, and each sub-adhesive layer is adhered to the projection device body 100 in the corresponding second sub-groove.

[0070] In order to reduce the difficulty of adhesion, the second adhesive layer 400 provided in the embodiment of the present application is arranged as a plurality of separate sub-adhesive layers, so as to reduce the area of each sub-adhesive layer. In this way, each sub-adhesive layer can be more conveniently adhered into the corresponding second sub-groove.

[0071] For example, the area surrounded by the plurality of sub-adhesive layers of the second adhesive layer 400 is rectangular, and the plurality of sub-adhesive layers of the second adhesive layer 400 can include at least two third sub-adhesive layers 410 and at least two fourth sub-adhesive layers 420.

[0072] The at least two third sub-adhesive layers 410 are arranged in a third direction Z, and the third sub-adhesive layers 410 extend along a second direction Y; the at least two fourth sub-adhesive layers 420 are arranged in the second direction Y, and the fourth sub-adhesive layers 420 extend along the third direction Z; wherein the third direction Z intersects the first direction X and intersects the second direction Y, for example, the third direction Z is perpendicular to the first direction X and perpendicular to the second direction Y.

[0073] For example, the plurality of second sub-grooves of the second bearing groove 121 can include at least two horizontal grooves 121a corresponding to the third sub-adhesive layers 410 and at least two vertical grooves 122b corresponding to the fourth sub-adhesive layers 420.

[0074] For example, as Figure 6As shown, each sub-adhesive layer of the second adhesive layer 400 can have a plurality of second exhaust holes 401, so that in the case that the sub-adhesive layer of the second adhesive layer 400 is adhered to the projection device body 100 in the corresponding second sub-groove, the sub-adhesive layer can effectively exhaust air to avoid the generation of bulges and ensure the flatness after adhesion.

[0075] In some possible implementation manners, as Figure 5 With Figure 8 As shown, Figure 8 Another structural schematic diagram of the metal decorative layer provided in the embodiments of the present application is shown, the side portion 120 of the projection device body 100 has a second hollow area 122, and the second adhesive layer 400 is distributed around the second hollow area 122; the second decorative layer 220 has a plurality of air flow openings 221 arranged in an array, and the plurality of air flow openings 221 are in communication with the second hollow area 122.

[0076] The side portion 120 of the projection device body 100 generally has a second hollow area 122 such as an air inlet hole or an air outlet hole for heat dissipation. In order to avoid the second decorative layer 220 affecting the air flow inside the projection device 000, the second decorative layer 220 can be provided with a plurality of air flow openings 221. It should be noted that, Figure 8 The air flow openings 221 in the above are only used for example and illustration, and are not limited to the specific positions, shapes and sizes of the air flow openings 221.

[0077] In some possible implementation manners, please refer to Figures 9 to 11 , Figure 9 Another structural schematic diagram of the metal decorative layer provided in the embodiments of the present application is shown, Figure 10 Another structural schematic diagram of the projection device provided in the embodiments of the present application is shown, Figure 11 As Figure 10 A local enlarged view of the A area in the projection device shown is shown, the side of the second decorative layer 220 away from the first decorative layer 210 has at least one first clamping piece 222, and the side of the side portion 120 of the projection device body 100 away from the top portion 110 has at least one first clamping groove 123, and the at least one first clamping piece 222 is correspondingly clamped with the at least one first clamping groove 123.

[0078] In the embodiments of the present application, in order to further improve the stability of the connection between the second decorative layer 220 and the side portion 120 of the projection device body 100, at least one first clamping piece 222 is arranged on the second decorative layer 220, and a corresponding at least one first clamping groove 123 is arranged on the side portion 120 of the projection device body 100, the second decorative layer 220 is further connected with the side portion 120 of the projection device body 100 in a clamping manner, and the fixing stability is improved.

[0079] Exemplarily, the first decorative layer 210 and the second decorative layer 220 can be an integrally formed structure, and the second decorative layer 220 and the first clamping piece 222 can be an integrally formed structure. The metal decorative layer 200 can have flexibility and flexibility, for example, the metal decorative layer 200 can be processed by using a thin sheet of aluminum or the like. The metal sheet processing is convenient and low in cost.

[0080] In some possible implementation manners, refer to Figures 9 to 11 The projection device 100 can further include at least one second clamping piece 500, the second clamping piece 500 being fixedly connected to a side of the second decorative layer 220 facing the projection device body 100; and the side 120 of the projection device body 100 has at least one second clamping groove 124a, the at least one second clamping piece 500 being correspondingly clamped with the at least one second clamping groove 124a.

[0081] In the embodiment of the present application, in order to further improve the stability of the connection between the second decorative layer 220 and the side 120 of the projection device body 100, at least one second clamping piece 500 is welded on the second decorative layer 220, and at least one second clamping groove 124a is arranged on the side 120 of the projection device body 100, so that the second decorative layer 220 is further connected with the side 120 of the projection device body 100 in a clamped manner.

[0082] In some possible implementation manners, refer to Figures 9 to 13 , Figure 12 Another structural schematic diagram of a projection device is provided in the embodiment of the present application, Figure 13 is Figure 12 The partial enlarged view of the B region in the projection device is shown, the side 120 of the projection device body 100 has a second hollow area 122 and a support cross beam 125 fixed in the second hollow area 122, the extension direction of the support cross beam 125 is parallel to the second direction Y; and the side of the support cross beam 125 away from the second decorative layer 220 has a second clamping groove 124a. And / or, the side 120 of the projection device body 100 has a second hollow area 122 and a support longitudinal beam 124 fixed in the second hollow area 122, the extension direction of the support longitudinal beam 124 is parallel to the third direction Z; and the side of the support longitudinal beam 124 away from the second decorative layer 220 has a second clamping groove 124a.

[0083] The second clamping piece 500 provided in the embodiment of the present application can be clamped with the second clamping groove 124a on the support cross beam 125 or the support longitudinal beam 124 after passing through the second hollow area 122, so that the second decorative layer 220 can be bonded to the side 120 of the projection device body 100, and the second clamping piece 500 can be clamped in the second clamping groove 124a on the inner side of the side 120 of the projection device body 100, so that the installation is simple.

[0084] Please refer to Figure 11 With Figure 13 , the second clamping piece 500 can include: a first sheet 510, and a second sheet 520 fixedly connected with one side of the first sheet 510; the first sheet 510 is fixedly connected with the side of the second decorative layer 220 facing the projector body 100; the second sheet 520 is used to be bent after passing through the second hollow area 122, and is bent to the second clamping groove 124a.

[0085] For example, the first sheet 510 and the second sheet 520 can be an integral molding structure, and the second clamping piece 500 has flexibility, so that the second sheet 520 can be bent after passing through the second hollow area 122, and will not rebound after bending, so as to be clamped in the second clamping groove 124a.

[0086] In the case that the side 120 of the projector body 100 has the second hollow area 122, the second hollow area 122 can be used as a heat dissipation port, that is, the second adhesive layer 400 is located in a high temperature area, and has higher requirements on the adhesive performance. By means of the first clamping piece 222 and the second clamping piece 500, it can be ensured that the second decorative layer 220 can be stably fixed on the side 120 of the projector body 100. In this way, the requirement on the adhesive performance of the second adhesive layer 400 can be reduced, thereby reducing the cost.

[0087] Some possible implementations, please refer to Figure 14 , Figure 14 The structure diagram of the projector provided by another embodiment of the application, the projector 000 can further include: a device base 600, the device base 600 is connected with the side of the projector body 100 away from the first decorative layer 210, for example, clamping, threaded connection.

[0088] In the case that the first clamping piece 222 is clamped in the first clamping groove 123, the first clamping piece 222 is located between the device base 600 and the projector body 100, and the first clamping piece 222 abuts against the device base 600. In this way, the first clamping piece 222 can be reliably fixed between the device base 600 and the projector body 100.

[0089] In summary, the projection device provided by the embodiment of the present application can include a projection device body, a first adhesive layer and a metal decoration layer. The metal decoration layer is adhered to the top of the projection device body through the first adhesive layer, so that the metal decoration layer can be fixed on the top of the projection device body without using a plastic support, the metal decoration layer can at least decorate the top of the projection device body, so that the projection device can have a metal texture appearance, and the material cost and the assembly cost of the metal device can be reduced. In addition, the metal decoration layer has a first hollow area, which can avoid the light transmission area of the projection device body, and will not affect the normal projection of the projection device.

[0090] In the present application, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. The term "a plurality of" refers to two or more, unless otherwise explicitly limited.

[0091] The above only describes optional embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A projection device, characterized by The projection device comprises a projection device body, a first adhesive layer and a metal decorative layer. The top of the projection device body has a light-transmitting area, and the projection device body is configured to emit a projection light beam through the light-transmitting area. At least part of the metal decorative layer is adhered to the top of the projection device body through the first adhesive layer. The metal decorative layer has a first hollow area, and at least part of the light-transmitting area is exposed through the first hollow area. The top of the projection device body has a first bearing groove matched with the first adhesive layer, and the first adhesive layer is adhered to the projection device body in the first bearing groove.

2. The projection device according to claim 1, characterized in that, The first bearing groove comprises a plurality of first sub-grooves arranged separately, and the first adhesive layer comprises a plurality of sub-adhesive layers arranged separately, which correspond to the plurality of first sub-grooves, and each sub-adhesive layer is adhered to the projection device body in the corresponding first sub-groove.

3. The projection device according to claim 2, characterized in that, The plurality of sub-adhesive layers comprise at least one first sub-adhesive layer and at least two second sub-adhesive layers.

4. The projection apparatus according to claim 3, wherein, The at least two second sub-adhesive layers are arranged in a first direction, and the at least two second sub-adhesive layers and the light-transmitting area are located on the same side of the at least one first sub-adhesive layer in a second direction. In the first direction, the light-transmitting area is located between two adjacent second sub-adhesive layers, and the first direction intersects the second direction. The metal decorative layer comprises a first decorative layer and two second decorative layers.

5. The projection apparatus according to any of claims 1-4, wherein, The first decorative layer has the first hollow area, and the first decorative layer is adhered to the top of the projection device body through the first adhesive layer. The two second decorative layers are fixedly connected to the two sides of the first decorative layer in the first direction, respectively, and the two second decorative layers are connected to the two side portions of the projection device body in the first direction, respectively. The projection device further comprises two second adhesive layers.

6. The projection apparatus according to claim 5, wherein, The two second decorative layers are adhered to the two side portions of the projection device body through the two second adhesive layers, respectively. The side portion of the projection device body has a second hollow area, and the second adhesive layer is distributed around the second hollow area; the second decorative layer has a plurality of air flow openings arranged in an array, and the plurality of air flow openings are in communication with the second hollow area.

7. The projection device according to claim 6, characterized in that, The side of the second decorative layer away from the first decorative layer has at least one first clamping member, and the side of the side portion of the projection device body away from the top has at least one first clamping groove, and the at least one first corner is correspondingly clamped with the at least one first clamping groove.

8. The projection apparatus according to claim 6, wherein, The projection device further comprises at least one second clamping member, which is fixedly connected to the side of the second decorative layer facing the projection device body; and the side portion of the projection device body has at least one second clamping groove, and the at least one second clamping member is correspondingly clamped with the at least one second clamping groove.

9. The projection apparatus according to claim 8, wherein, The side portion of the projection device body has a second hollow area, and a support cross beam is fixed in the second hollow area, and the extension direction of the support cross beam is parallel to the second direction.

10. The projection apparatus according to claim 9, wherein, ​ The support crossbeam has the second clamping groove on a side away from the second decorative layer; The second clamping piece comprises a first sheet and a second sheet fixedly connected to one side of the first sheet; the first sheet is fixedly connected to a side of the second decorative layer facing the body of the projection device; the second sheet is used to be bent after passing through the second hollow area, so as to be bent into the second clamping groove.

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