Projection device

Abstract

The utility model discloses projection equipment, and belongs to the technical field of photoelectricity. The projection equipment comprises a shell, a laser, a driving assembly and a first conductive connecting part. The first mounting surface for mounting the laser and the second mounting surface for mounting the driving assembly in the shell are not coplanar, so that the laser and the driving assembly in the projection equipment can be mounted in a non-coplanar manner, and non-coplanar connection of the driving assembly and the laser can be realized through the first conductive connecting part; therefore, the space utilization rate of the internal installation space of the shell can be improved, and miniaturization of the projection equipment is facilitated. And through the first conductive connection part, the electric connection between three different types of light-emitting chips used for emitting laser light with three colors in a plurality of functional parts in the laser and the driving assembly can be directly realized, the connection efficiency of the laser and the driving assembly is improved, and the overall assembly efficiency of the projection equipment is further improved.

Description

TECHNICAL FIELD

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

[0002] The projection device with a laser as a light source is a laser projection device, and the laser light source has the advantages of good monochromaticity, high brightness and long service life, and is an ideal light source, so that the projection device with the laser has high brightness and good display effect.

[0003] The laser projection device can have a laser driving board for driving the laser to emit light. At present, the laser in the laser projection device is electrically connected with the laser driving board through a connecting plate. Generally, the laser is connected with the connecting plate through welding to realize the electrical connection between the laser and the connecting plate.

[0004] However, the connection efficiency of the laser and the connecting plate through the welding mode is low, resulting in low overall assembly efficiency of the laser projection device. Innovative content

[0005] The embodiment of the present application provides a projection device. The technical scheme can solve the problem of low connection efficiency of the laser and the driving board in the laser projection device in the prior art, and the technical scheme is as follows:

[0006] In one aspect, a projection device is provided, comprising: a housing, a laser, a driving assembly and a first conductive connection part;

[0007] The housing has a first mounting surface and a second mounting surface in the interior, and the first mounting surface and the second mounting surface are not coplanar;

[0008] The laser is mounted on the first mounting surface;

[0009] At least part of the driving assembly is mounted on the second mounting surface;

[0010] The first conductive connection part is located between the laser and the driving assembly, a first end of the first conductive connection part is electrically connected with the laser, and a second end of the first conductive connection part is electrically connected with the driving assembly.

[0011] Optionally, the laser comprises a substrate, and a plurality of functional components and a plurality of groups of first connection points on the substrate, and the plurality of functional components and the plurality of groups of first connection points are electrically connected correspondingly;

[0012] The first end of the first conductive connecting part has a plurality of second connecting points, and the first conductive connecting part internally has a plurality of signal lines; the plurality of second connecting points can be electrically connected with the plurality of first connecting points in correspondence, and the first ends of the plurality of signal lines are electrically connected with the plurality of second connecting points in correspondence.

[0013] Optionally, the plurality of functional components include a first color light chip, a second color light chip and a third color light chip; the first color light emitted by the first color light chip has a wavelength greater than that of the second color light emitted by the second color light chip, and greater than that of the third color light emitted by the third color light chip;

[0014] The first conductive connecting part includes a first conductive layer and a second conductive layer which are stacked.

[0015] In the first conductive connecting part, each signal line for electrically connecting with the first color light chip includes a first sub-line and a second sub-line which are connected, the first sub-line is distributed in the first conductive layer, and the second sub-line is distributed in the second conductive layer; each signal line for electrically connecting with the second color light chip is distributed in the first conductive layer; and each signal line for electrically connecting with the third color light chip is distributed in the second conductive layer.

[0016] Optionally, the plurality of functional components further include a temperature sensor.

[0017] In the first conductive connecting part, each signal line for electrically connecting with the temperature sensor is distributed in the first conductive layer, or each signal line for electrically connecting with the temperature sensor is distributed in the second conductive layer, or one signal line for electrically connecting with the temperature sensor is distributed in the first conductive layer, and the other signal line is distributed in the second conductive layer.

[0018] Optionally, the second end of the first conductive connecting part has a plurality of third connecting points, and the second ends of the plurality of signal lines are electrically connected with the plurality of second connecting points in correspondence.

[0019] The driving assembly has a plurality of fourth connecting points, and the plurality of fourth connecting points are electrically connected with the plurality of third connecting points in correspondence.

[0020] Optionally, the first mounting surface and the second mounting surface are parallel, and the shell further has a supporting surface between the first mounting surface and the second mounting surface.

[0021] The first conductive connecting part comprises a first part, a second part and a third part connected together, the second part is located between the first part and the third part and is distributed on the support surface, one end of the first part away from the second part is electrically connected with the laser, and one end of the third part away from the second part is electrically connected with the driving assembly.

[0022] The extension direction of the first part is parallel to the first mounting surface, the extension direction of the third part is parallel to the second mounting surface, and the extension direction of the second part is parallel to the extension direction of the first part and intersects with the extension direction of the third part.

[0023] Optionally, the first mounting surface and the second mounting surface intersect.

[0024] The first conductive connecting part comprises a fourth part and a fifth part connected together, one end of the fourth part away from the fifth part is electrically connected with the laser, and one end of the fifth part away from the fourth part is electrically connected with the driving assembly.

[0025] The extension direction of the fourth part is parallel to the first mounting surface, and the extension direction of the fifth part is parallel to the second mounting surface.

[0026] Optionally, the projection device comprises a plurality of the lasers.

[0027] The plurality of lasers are electrically connected with the driving assembly through one first conductive connecting part, the first conductive connecting part comprises a first connecting body and a plurality of first connecting branches, the first connecting body is electrically connected with the driving assembly, the plurality of first connecting branches are electrically connected with one side of the first connecting body away from the driving assembly, and the plurality of first connecting branches are electrically connected with the plurality of lasers one by one.

[0028] Alternatively, the plurality of lasers are electrically connected with the driving assembly through a plurality of first conductive connecting parts, the plurality of lasers and the plurality of first conductive connecting parts correspond one by one, a first end of each first conductive connecting part is electrically connected with the corresponding laser, and a second end of each first conductive connecting part is electrically connected with the driving assembly.

[0029] Optionally, the driving assembly comprises a conversion board and a driving board, the conversion board is installed on the second mounting surface, and the second end of the first conductive connecting part is electrically connected with the conversion board.

[0030] Alternatively, the driving assembly comprises a driving board, the driving board is installed on the second mounting surface, and the second end of the first conductive connecting part is electrically connected with the driving board.

[0031] Optionally, in the case that the driving assembly comprises a driving board, and the plurality of lasers are electrically connected with the driving assembly through the first conductive connecting part, the first connecting body is internally integrated with a first circuit for realizing series connection of the plurality of lasers.

[0032] Alternatively, in the case that the driving assembly comprises an adapter board and a driving board, and the plurality of lasers are electrically connected with the driving assembly through the plurality of first conductive connecting parts, the adapter board is internally integrated with a second circuit for realizing series connection of the plurality of lasers.

[0033] Optionally, the first end of the first conductive connecting part has a first connector, the laser has a second connector plugged with the first connector; the second end of the first conductive connecting part is welded with the driving assembly.

[0034] Alternatively, the second end of the first conductive connecting part has a third connector, the driving assembly has a fourth connector plugged with the third connector, and the first end of the first conductive connecting part is welded with the laser.

[0035] Alternatively, the first end of the first conductive connecting part has a first connector, the laser has a second connector plugged with the first connector; the second end of the first conductive connecting part has a third connector, and the driving assembly has a fourth connector plugged with the third connector.

[0036] Optionally, in the case that the second end of the first conductive connecting part has a third connector, and the driving assembly has a fourth connector, the number of the third connectors and the fourth connectors is both plural, and the plurality of third connectors are plugged with the plurality of fourth connectors one by one.

[0037] The first conductive connecting part comprises a second connecting body and a plurality of second connecting branches, the second connecting body is electrically connected with the laser, the plurality of second connecting branches are electrically connected with the side of the second connecting body away from the laser, and the plurality of second connecting branches are electrically connected with the plurality of third connectors one by one.

[0038] Optionally, the projection device further comprises at least two heat dissipation support pads, at least one of the at least two heat dissipation support pads is located between the first conductive connecting part and the first mounting surface, and at least one of the at least two heat dissipation support pads is located between the first conductive connecting part and the second mounting surface.

[0039] The technical scheme provided by the embodiments of the present application has at least the following beneficial effects:

[0040] The first mounting surface in the shell for mounting the laser and the second mounting surface for mounting the driving assembly are not coplanar, so that the laser and the driving assembly in the projection device can be mounted non-coplanarly, and the non-coplanar connection of the driving assembly and the laser can be realized through the first conductive connection part, so that the space utilization of the mounting space inside the shell can be improved, and the miniaturization of the projection device is facilitated. And through the first conductive connection part, the electrical connection of three different types of light emitting chips for emitting three colors of laser in the plurality of functional components in the laser and the driving assembly can be directly realized, the connection efficiency of the laser and the driving assembly is improved, and the overall assembly efficiency of the projection device is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used 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.

[0042] Figure 1 is a structural schematic diagram of a projection device provided by an embodiment of the present application;

[0043] Figure 2 is Figure 1 is an exploded view of the projection device;

[0044] Figure 3 is a structural schematic diagram of part of the structure of a projection device provided by an embodiment of the present application;

[0045] Figure 4 is a top view of an exploded view of a projection device provided by an embodiment of the present application;

[0046] Figure 5 is a sectional view of a first conductive connection part provided by an embodiment of the present application;

[0047] Figure 6 is a structural schematic diagram of a first conductive connection part provided by an embodiment of the present application;

[0048] Figure 7 is a structural schematic diagram of another projection device provided by an embodiment of the present application;

[0049] Figure 8 is Figure 4 is an exploded view of the projection device;

[0050] Figure 9 is a structural schematic diagram of another first conductive connection part provided by an embodiment of the present application;

[0051] Figure 10is a top view of part of the structure of a projection device provided by an embodiment of the present application;

[0052] Figure 11 is a top view of part of the structure of another projection device provided by an embodiment of the present application;

[0053] Figure 12 is a top view of part of the structure of yet another projection device provided by an embodiment of the present application;

[0054] Figure 13 is a structural schematic diagram of yet another projection device provided by an embodiment of the present application;

[0055] Figure 14 is a structural schematic diagram of part of the structure of a projection device provided by an embodiment of the present application;

[0056] Figure 15 is a top view of part of the structure of yet another projection device provided by an embodiment of the present application;

[0057] Figure 16 is a top view of part of the structure of a projection device provided by another embodiment of the present application;

[0058] Figure 17 is a top view of part of the structure of yet another projection device provided by another embodiment of the present application;

[0059] Figure 18 is a structural schematic diagram of a projection device not including a housing provided by an embodiment of the present application;

[0060] Figure 19 is a structural schematic diagram of yet another first conductive connection provided by an embodiment of the present application;

[0061] Figure 20 is a structural schematic diagram of another projection device not including a housing provided by an embodiment of the present application;

[0062] Figure 21 is a structural schematic diagram of yet another first conductive connection provided by an embodiment of the present application;

[0063] Figure 22 is a top view of part of the structure of yet another projection device provided by another embodiment of the present application;

[0064] Figure 23 is an exploded view of yet another projection device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0065] In order to make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be described in further detail below with reference to the drawings.

[0066] The projection device with the laser can be a laser projection device. The laser installed in the projection device can serve as a light source to provide laser for the projection device. The projection device can further include a driving board, which can be used to drive a plurality of light emitting chips in the laser to emit light. At present, the driving board is generally electrically connected with the laser through a conversion board. At present, the laser is generally electrically connected with the conversion board through welding, and then is electrically connected with the driving board. However, in the welding process, due to problems such as solder residue and flux volatilization, the plurality of light emitting chips in the laser are more likely to be affected, thereby affecting the optical performance of the laser.

[0067] Embodiments of the present application provide a projection device, please refer to Figure 1 and Figure 2 , Figure 1 is a structural schematic diagram of part of a projection device provided by embodiments of the present application, Figure 2 is Figure 1 The exploded view of the projection device shown in FIG. 1, which can include a housing 100, a laser 200, a driving assembly 300 and a first conductive connection part 400. Here, the housing 100, the laser 200, the driving assembly 300 and the first conductive connection part 400 can all be located inside the housing 100.

[0068] It should be noted that, please refer to Figure 3 , Figure 3 is a structural schematic diagram of part of a projection device provided by embodiments of the present application, which generally can include a housing 100, a laser light source 001, an optical engine 002 and a projection lens 003. The laser light source 001, the optical engine 002 and the projection lens 003 can be installed inside the housing 100. The laser light source 001 can include a laser 200, which can emit a laser beam so that the laser light source can provide a light source for the projection device. The optical engine 002 is used to generate an image beam according to the laser beam provided by the laser light source 001, and guide the image beam to the projection lens 003. The projection lens 003 is used to image the image beam after receiving the image beam, and project it onto a projection screen to display a picture on the projection screen.

[0069] The inside of the housing 100 in the projection device can have a first mounting surface P1 and a second mounting surface P2, and the first mounting surface P1 and the second mounting surface P2 of the housing 100 are not coplanar.

[0070] The laser 200 in the projection device can be installed on the first mounting surface P1 of the housing 100. Here, the laser 200 can have a plurality of light emitting chips, and the light emitting chips in the laser 200 can emit laser.

[0071] At least part of the driving assembly 300 in the projection device can be mounted on the second mounting surface P2 of the housing 100. Here, the driving assembly 300 in the projection device is used to drive the multiple light emitting chips in the laser 200 to emit light, so that the laser 200 can serve as a light source.

[0072] It should be noted that the second mounting surface P2 for mounting the driving assembly 300 in the housing 100 can be the surface of the inner wall of the housing 100, in which case the driving assembly 300 can be mounted on the inner wall of the housing 100. Alternatively, the housing 100 can have a support portion inside, and the second mounting surface P2 for mounting the driving assembly 300 can be the surface of the support portion, in which case the driving assembly 300 can be mounted inside the housing 100.

[0073] The first conductive connection portion 400 in the projection device can be located between the laser 200 and the driving assembly 300, the first end of the first conductive connection portion 400 can be electrically connected with the laser 200, and the second end of the first conductive connection portion 400 can be electrically connected with the driving assembly 300. In this way, the laser 200 and the driving assembly 300 in the projection device can be directly connected together through the first conductive connection portion 400, so that the driving assembly 300 can normally drive the multiple light emitting chips in the laser 200 to emit laser.

[0074] To this end, the laser 200 and the driving assembly 300 in the projection device can be mounted non-coplanarly, and the non-coplanar connection of the driving assembly 300 and the laser 200 can be achieved through the first conductive connection portion 400, so as to improve the space utilization of the installation space inside the housing 100, and facilitate the miniaturization of the projection device.

[0075] And compared with the prior art of welding the laser 200 and the driving assembly 300 together by welding, directly connecting the laser 200 and the driving assembly 300 by the first conductive connection portion 400 can improve the connection efficiency between the laser 200 and the driving assembly 300, and further improve the overall assembly efficiency of the projection device. At the same time, it avoids the adverse effects on the light emitting chips in the laser 200 during welding, improves the reliability of the laser, and further improves the reliability of the projection device.

[0076] Optionally, please refer to Figure 4 , Figure 4is a top view of an exploded view of a projection device provided by an embodiment of the present application. The laser 200 can include a substrate 201, and a plurality of functional components 202 and a plurality of first connection points L1 on the substrate 201. The plurality of functional components 202 can be electrically connected to the plurality of connection points L1. The first end of the first conductive connecting part 400 can have a plurality of second connection points L2, and the inside of the first conductive connecting part 400 can have a plurality of signal lines 410. The plurality of second connection points L2 of the first conductive connecting part 400 can be electrically connected to the plurality of first connection points L1 of the laser 200, and the first end of the plurality of signal lines 410 in the first conductive connecting part 400 can be electrically connected to the plurality of second connection points L2.

[0077] Optionally, as shown in Figure 4 the second end of the first conductive connecting part 400 can have a plurality of third connection points L3, and the second end of the plurality of signal lines 410 in the first conductive connecting part 400 can be electrically connected to the plurality of second connection points L2. The driving assembly 300 can have a plurality of fourth connection points L4, and the plurality of fourth connection points L4 can be electrically connected to the plurality of third connection points L3.

[0078] In this way, through the corresponding connection of the first connection points L1 and the second connection points L2, the corresponding electrical connection of the plurality of functional components 202 in the laser 200 and the first end of the plurality of signal lines 410 inside the first conductive connecting part 400 can be achieved, and then the corresponding electrical connection of the second end of the plurality of signal lines 410 and the plurality of third connection points L3 of the first conductive connecting part 400, and the corresponding electrical connection of the plurality of third connection points L3 and the plurality of fourth connection points L4 can be achieved, so that the corresponding electrical connection of the plurality of functional components 202 in the laser 200 and the driving assembly 300 can be achieved, and then the driving assembly 300 can drive the corresponding functional components 202 to work through the corresponding signal lines 410.

[0079] It should be noted that the plurality of first connection points L1 in the laser 200 can be integrated into the first connector 601 in the subsequent embodiment, the plurality of second connection points L2 in the first conductive connecting part 400 can be integrated into the second connector 602 in the subsequent embodiment, the plurality of third connection points L3 in the first conductive connecting part 400 can be integrated into the third connector 603 in the subsequent embodiment, and the plurality of fourth connection points L4 in the driving assembly 300 can be integrated into the fourth connector 604 in the subsequent embodiment. In this way, through the plugging of the first connector 601 and the second connector 602, the corresponding electrical connection of the plurality of first connection points L1 and the plurality of second connection points L2 can be achieved, and through the plugging of the third connector 603 and the fourth connector 604, the corresponding electrical connection of the plurality of third connection points L3 and the plurality of fourth connection points L4 can be achieved.

[0080] Optionally, the functional component 202 in the laser 200 can include a first color light chip 2021, a second color light chip 2022, and a third color light chip 2023. Here, the first color light chip 2021, the second color light chip 2022, and the third color light chip 2023 are all light-emitting chips in the laser 200 for emitting laser light. The wavelength of the first color light emitted by the first color light chip 2021 can be greater than the wavelength of the second color light emitted by the second color light chip 2022, and can be greater than the wavelength of the third color light emitted by the third color light chip 2023. The first color light can be red laser light, the second color light can be green laser light, and the third color light can be blue laser light.

[0081] It should be noted that a plurality of first color light chips 2021 in the laser can be connected in series, and the first positive electrode and the first negative electrode of the plurality of first color light chips 2021 can be electrically connected to the first electrode and the second electrode of a group of first connection points L1, respectively. A plurality of second color light chips 2022 in the laser can be connected in series, and the second positive electrode and the second negative electrode of the plurality of second color light chips 2022 can be electrically connected to the first electrode and the second electrode of another group of first connection points L1, respectively. A plurality of third color light chips 2023 in the laser can be connected in series, and the third positive electrode and the third negative electrode of the plurality of third color light chips 2023 can be electrically connected to the first electrode and the second electrode of another group of first connection points L1, respectively. In this way, the driving assembly 300 can simultaneously drive the plurality of first color light chips 2021 to emit first color light, and can simultaneously drive the plurality of second color light chips 2022 to emit second color light, and can simultaneously drive the plurality of third color light chips 2021 to emit third color light.

[0082] Currently, when the laser and the driving assembly are connected by welding, the first electrode and the second electrode of a group of first connection points L1 corresponding to the first positive electrode and the first negative electrode, the first electrode and the second electrode of another group of first connection points L1 corresponding to the second positive electrode and the second negative electrode, and the first electrode and the second electrode of another group of first connection points L1 corresponding to the third positive electrode and the third negative electrode are all welded to the driving assembly 300, respectively, resulting in low connection efficiency of the laser and the driving assembly, and further resulting in low overall assembly efficiency of the projection device.

[0083] In the present application, through the corresponding electrical connection of the plurality of groups of second connection points L2 of the first conductive connection part 400 and the plurality of groups of first connection points L1, and the electrical connection of the second end of the first conductive connection part 400 and the driving assembly 300, the electrical connection of the light-emitting chips for emitting three colors of laser light in the plurality of functional components 202 and the driving assembly 300 can be directly realized, the connection efficiency of the laser 200 and the driving assembly 300 is improved, and further the overall assembly efficiency of the projection device is improved.

[0084] In the present application, the first mounting surface P1 in the shell 100 for mounting the laser 200 and the second mounting surface P2 for mounting the driving assembly 300 are not coplanar, so that the laser 200 and the driving assembly 300 in the projection device can be mounted non-coplanarly, and the non-coplanar connection of the driving assembly 300 and the laser 200 can be achieved through the first conductive connection part 400, so that the space utilization of the internal mounting space of the shell 100 can be improved, and the miniaturization of the projection device is facilitated. And through the first conductive connection part, the electrical connection of the three different types of light emitting chips for emitting three colors of laser in the plurality of functional components 202 in the laser 200 and the driving assembly 300 can be directly achieved, the connection efficiency of the laser 200 and the driving assembly 300 is improved, and the overall assembly efficiency of the projection device is further improved.

[0085] In summary, the present application improves a projection device, which comprises a shell, a laser, a driving assembly and a first conductive connection part. The first mounting surface in the shell for mounting the laser and the second mounting surface for mounting the driving assembly are not coplanar, so that the laser and the driving assembly in the projection device can be mounted non-coplanarly, and the non-coplanar connection of the driving assembly and the laser can be achieved through the first conductive connection part, so that the space utilization of the internal mounting space of the shell can be improved, and the miniaturization of the projection device is facilitated. And through the first conductive connection part, the electrical connection of the three different types of light emitting chips for emitting three colors of laser in the plurality of functional components in the laser and the driving assembly can be directly achieved, the connection efficiency of the laser and the driving assembly is improved, and the overall assembly efficiency of the projection device is further improved.

[0086] Optionally, as shown in Figure 5 Figure 5 is a cross-sectional view of a first conductive connection part provided by the present application, and the first conductive connection part 400 can comprise a first conductive layer 400a and a second conductive layer 400b which are stacked.

[0087] ​In the first conductive connection part 400, each signal line 410 for electrically connecting with the first color light chip 2021 can include a first sub-line and a second sub-line. Here, each signal line 410 for electrically connecting with the first color light chip 2021 can have two signal lines respectively electrically connecting with the first positive electrode and the first negative electrode of the first color light chip 2021. The first sub-line can be distributed in the first conductive layer 400a, and the second sub-line can be distributed in the second conductive layer 400b. That is, the signal line for electrically connecting with the first positive electrode of the first color light chip 2021 in the first conductive connection part 400 can be simultaneously distributed in the first conductive layer 400a and the second conductive layer 400b, and the signal line for electrically connecting with the first negative electrode of the first color light chip 2021 in the first conductive connection part 400 can be simultaneously distributed in the first conductive layer 400a and the second conductive layer 400b.

[0088] In the first conductive connection part 400, each signal line for electrically connecting with the second color light chip 2022 is distributed in the first conductive layer 400a. Here, each signal line 410 for electrically connecting with the second color light chip 2022 can have two signal lines respectively electrically connecting with the second positive electrode and the second negative electrode of the second color light chip 2022. That is, the two signal lines 410 for electrically connecting with the second positive electrode and the second negative electrode of the second color light chip 2022 in the first conductive connection part 400 can be both distributed in the first conductive layer 400a.

[0089] In the first conductive connection part 400, each signal line for electrically connecting with the third color light chip 2023 is distributed in the second conductive layer 400b. Here, each signal line 410 for electrically connecting with the third color light chip 2023 can have two signal lines respectively electrically connecting with the third positive electrode and the third negative electrode of the third color light chip 2023. That is, the two signal lines 410 for electrically connecting with the third positive electrode and the third negative electrode of the third color light chip 2023 in the first conductive connection part 400 can be both distributed in the second conductive layer 400b.

[0090] Here, since the wavelength of the first color light emitted by the first color light chip 2021 can be greater than the wavelength of the second color light emitted by the second color light chip 2022, and can be greater than the wavelength of the third color light emitted by the third color light chip 2023, a greater current is required to drive the first color light chip 2021 to emit light during the operation of the laser 200. In this way, the signal lines in the first conductive connection part 400 for electrically connecting the first positive electrode of the first color light chip 2021 are distributed in the first conductive layer 400a and the second conductive layer 400b at the same time, and the signal lines in the first conductive connection part 400 for electrically connecting the first negative electrode of the first color light chip 2021 are distributed in the first conductive layer 400a and the second conductive layer 400b at the same time, which can improve the overcurrent capacity of the first conductive connection part 400, and further improve the reliability of the first conductive connection part 400.

[0091] Optionally, the plurality of functional components 202 in the laser 200 can further include a temperature sensor 2024. In the first conductive connection part 400, each signal line 410 for connecting the temperature sensor 2024 is distributed in the first conductive layer 400a. That is, the two signal lines 410 in the first conductive connection part 400 for electrically connecting the fourth positive electrode and the fourth negative electrode of the temperature sensor 2024 can be distributed in the first conductive layer 400a. Or each signal line 410 for connecting the temperature sensor 2024 is distributed in the second conductive layer 400b. That is, the two signal lines 410 in the first conductive connection part 400 for electrically connecting the fourth positive electrode and the fourth negative electrode of the temperature sensor 2024 can be distributed in the second conductive layer 400b. Or, the first signal line for electrically connecting the temperature sensor 2024 is distributed in the first conductive layer 400a, and the other signal line is distributed in the second conductive layer 400b.

[0092] In the present application, the first mounting surface P1 and the second mounting surface P2 in the housing 100 which are not coplanar can have the following cases:

[0093] In the first case, as shown in Figure 1 and Figure 2 , the first mounting surface P1 of the housing 100 can be parallel to the second mounting surface P2, that is, the first mounting surface P1 can be parallel to the second mounting surface P2 and not coplanar. The housing 100 can also have a support surface P3 located between the first mounting surface P1 and the second mounting surface P2. Here, the first mounting surface P1 and the second mounting surface P2 are parallel, and the support surface P3 can intersect the first mounting surface P1 and the second mounting surface P2, for example, the support surface P3 can perpendicularly intersect the first mounting surface P1 and the second mounting surface P2.

[0094] Optionally, in the case that the first mounting surface P1 and the second mounting surface P2 of the shell 100 are parallel and not coplanar, please refer to Figure 6 , Figure 6 is a structural schematic diagram of a first conductive connecting part provided by an embodiment of the present application. The first conductive connecting part 400 can include a first part 401, a second part 402 and a third part 403 connected with each other. The second part 402 in the first conductive connecting part 400 can be located between the first part 401 and the third part 403, and the second part 402 can be distributed on the support surface P3 of the shell 100. An end of the first part 401 in the first conductive connecting part 400, which is away from the second part 402, can be electrically connected with the laser 200. Here, the end of the first part 401, which is away from the second part 402, is the first end of the first conductive connecting part 400. An end of the third part 403 in the first conductive connecting part 400, which is away from the second part 402, can be connected with the driving assembly 300. Here, the end of the third part 403, which is away from the second part 402, is the second end of the first conductive connecting part 400.

[0095] In the first conductive connecting part 400, the extension direction of the first part 401 can be parallel to the first mounting surface P1 of the shell 100, and the extension direction of the second part 402 can be parallel to the second mounting surface P2 of the shell 100. Here, since the first mounting surface P1 and the second mounting surface P2 of the shell 100 are parallel, the extension direction of the first part 401 in the first conductive connecting part 400 can be parallel to the extension direction of the third part 403. In addition, since the second part 402 between the first part 401 and the third part 403 is distributed on the support surface P3 of the shell 100, and the support surface P3 intersects the first mounting surface P1 and the second mounting surface P2, the second part 402 in the first conductive connecting part 400 can intersect the first part 401 and the second part 402.

[0096] Thus, after the first part 401 in the first conductive connection part 400 is pulled, the support surface P3 can eliminate the pulling force under the support of the support surface P3 on the second part 402, so as to ensure that the pulling force cannot be transmitted to the third part 403, and further ensure that the connection between the end of the third part 403 away from the second part 402 and the driving assembly 300 will not be pulled. Similarly, after the second part 402 in the first conductive connection part 400 is pulled, the support surface P3 can eliminate the pulling force under the support of the support surface P3 on the second part 402, so as to ensure that the pulling force cannot be transmitted to the first part 401, and further ensure that the connection between the end of the first part 401 away from the second part 402 and the laser 200 will not be pulled. In this way, the reliability of the connection between the first end and the second end of the first conductive connection part 400 and the laser 200 and the driving assembly 300 respectively is higher, and the reliability of the projection device is further improved.

[0097] In the second case, please refer to Figure 7 、 Figure 8 and Figure 9 , Figure 7 is a structural schematic diagram of another projection device provided by an embodiment of the present application, Figure 8 is Figure 7 an exploded view of the projection device, Figure 9 is a structural schematic diagram of another first conductive connection part provided by an embodiment of the present application. The first mounting surface P1 of the shell 100 can intersect the second mounting surface P2. For example, the first mounting surface P1 of the shell 100 can perpendicularly intersect the second mounting surface P2.

[0098] Optionally, in the case where the first mounting surface P1 of the shell 100 intersects the second mounting surface P2, the first conductive connection part 400 can include a fourth part 404 and a fifth part 405 connected with each other. The end of the fourth part 404 in the first conductive connection part 400 away from the fifth part 405 can be electrically connected with the laser 200. Here, the end of the fourth part 404 away from the fifth part 405 is the first end of the first conductive connection part 400. The end of the fifth part 405 in the first conductive connection part 400 away from the fourth part 404 can be electrically connected with the driving assembly 300. Here, the end of the fifth part 405 away from the fourth part 404 is the second end of the first conductive connection part 400.

[0099] The extension direction of the fourth portion 404 in the first conductive connection portion 400 can be parallel to the first mounting surface P1 of the housing 100, and the fifth portion 405 in the first conductive connection portion 400 can be parallel to the second mounting surface P2 of the housing 100. Here, since the first mounting surface P1 intersects the second mounting surface P2, the fourth portion 404 and the fifth portion 405 in the first conductive connection portion 400 can intersect, for example, the fourth portion 404 and the fifth portion 405 in the first conductive connection portion 400 can intersect perpendicularly.

[0100] In this way, after the fifth portion 405 in the first conductive connection portion 400 is pulled, since the extension direction of the fifth portion 405 intersects the extension direction of the fourth portion 404, the pulling force on the fifth portion 405 is less likely to be transmitted to the fourth portion 404 to cause the connection between the end of the fourth portion 404 away from the fifth portion 405 and the driving assembly 300 to loosen. Similarly, after the fourth portion 404 in the first conductive connection portion 400 is pulled, since the extension direction of the fifth portion 405 intersects the extension direction of the fourth portion 404, the pulling force on the fourth portion 404 is less likely to be transmitted to the fifth portion 405 to cause the connection between the end of the fifth portion 405 away from the fourth portion 404 and the laser 200 to loosen. In this way, the reliability of the connection of the first end and the second end of the first conductive connection portion 400 to the laser 200 and the driving assembly 300 respectively is higher, and the reliability of the projection device is further improved.

[0101] In the present application, as shown in Figure 1 , Figure 6 and Figure 10 , Figure 10 is a top view of part of the structure of a projection device provided by an embodiment of the present application. The projection device can include a plurality of lasers 200, and each of the plurality of lasers 200 can serve as a light source to provide laser light for the projection device, so as to improve the light brightness of the light source of the projection device and make the display effect of the display picture of the projection device better.

[0102] As shown in Figure 11 , Figure 11is a top view of part of the structure of another projection device provided by an embodiment of the present application. The plurality of lasers 200 in the projection device can be electrically connected to the driving assembly 300 through a first conductive connecting part 400. The first conductive connecting part 400 can include a first connecting body 406 and a plurality of first connecting branches 407. The first connecting body 406 can be electrically connected to the driving assembly 300. The plurality of first connecting branches 407 can each be electrically connected to a side of the first connecting body 406 that is away from the driving assembly 300. The plurality of first connecting branches 407 can each be electrically connected to one of the plurality of lasers 200. In this way, the plurality of lasers 200 in the projection device can be electrically connected to the driving assembly 300 through the first conductive connecting part 400. The driving assembly 300 can drive the plurality of lasers 200 to emit light through the first conductive connecting part 400.

[0103] Alternatively, as shown in Figure 10 and Figure 12 , Figure 12 is a top view of part of the structure of another projection device provided by an embodiment of the present application. The plurality of lasers 200 in the projection device can be electrically connected to the driving assembly 300 through a plurality of first conductive connecting parts 400. The plurality of lasers 200 in the projection device and the plurality of first conductive connecting parts 400 can correspond to each other. A first end of each of the plurality of first conductive connecting parts 400 can be electrically connected to one of the plurality of lasers 200. A second end of each of the plurality of first conductive connecting parts 400 can be electrically connected to the driving assembly 300. In this way, each of the plurality of lasers 200 in the projection device can be electrically connected to the driving assembly 300 through one of the plurality of first conductive connecting parts 400. The driving assembly 300 can drive each of the plurality of lasers 200 to emit light through one of the plurality of first conductive connecting parts 400.

[0104] Optionally, as shown in Figure 10 and Figure 12 , the driving assembly 300 in the projection device can include a conversion board 301 and a driving board 302. The conversion board 301 in the driving assembly 300 can be mounted on the second mounting surface P2 of the housing 100. The second end of the first conductive connecting part 400 can be electrically connected to the conversion board 301. Here, the driving board 302 in the driving assembly 300 is configured to drive the lasers 200 to emit light. The driving board 302 can be electrically connected to the first conductive connecting part 400 through the conversion board 301, and further electrically connected to the lasers 200.

[0105] Alternatively, as shown in Figure 11 , Figure 13 and Figure 14 , Figure 13 is a structural schematic diagram of another projection device provided by an embodiment of the present application, Figure 14This is a schematic diagram of a partial structure of a projection device provided in an embodiment of this application. The driving component 300 in the projection device may include a driving board 302, which can be mounted on the second mounting surface P2 of the housing 100. The second end of the first conductive connection portion 400 can be electrically connected to the driving board 302. In this way, the driving board 302 in the driving component 300 can be directly electrically connected to the laser 200 through the first conductive connection portion 400 to drive the laser 200 to emit light.

[0106] It should be noted that, please refer to Figure 15 , Figure 15 This is a top view of a partial structure of another projection device provided in an embodiment of this application. In the case where the projection device includes a laser 200 and the driving assembly 300 includes an adapter plate 301 and a driving plate 302, the laser 200 can be electrically connected to the adapter plate 301 via a first conductive connection portion 400, and further electrically connected to the driving plate 302 via the adapter plate 301. Please refer to... Figure 16 , Figure 16 This is a top view of a partial structure of a projection device provided in another embodiment of this application. In the case where the projection device includes a laser 200 and the driving assembly 300 includes a driving board 302, the laser 200 can be electrically connected to the driving board 302 through a first conductive connection portion 400.

[0107] It should be noted that when the projection device includes multiple lasers 200, the multiple lasers 200 in the projection device can be connected in series or in parallel.

[0108] like Figure 11 As shown, when the driving component 300 in the projection device includes a driving board 302, and multiple lasers 200 are electrically connected to the driving component 300 through a first conductive connection part 400, the first connection body 406 in the first conductive connection part 400 may integrate a first line A1 for realizing the series connection of multiple lasers 200.

[0109] For example, when there are two lasers 200 in the projection device, the two ends of the first line A1 integrated inside the first connection body 406 can be electrically connected to the two lasers 200 respectively, thus realizing the series connection of the two lasers 200.

[0110] It should be noted that in the case that the driving assembly 300 in the projection device comprises the driving board 302, and the plurality of lasers 200 are electrically connected with the driving assembly 300 through a first conductive connecting part 400, the inside of the first connecting body 406 and the corresponding first connecting branch 407 can be integrated with a circuit for connecting the corresponding laser 200 and the driving board 302. If the inside of the first connecting body 406 is further integrated with the first circuit A1, the plurality of lasers 200 are connected in series, and if the inside of the first connecting body 406 is not integrated with the first circuit A1 for connecting the plurality of lasers 200 in series, the plurality of lasers 200 are connected in parallel.

[0111] As shown in FIG. 1, Figure 12 the driving assembly 300 in the projection device comprises the adapter board 301 and the driving board 302, and the plurality of lasers 200 can be electrically connected with the driving assembly 300 through a plurality of first conductive connecting parts 400. Here, each laser 200 can be electrically connected with the adapter board 301 in the driving assembly 300 through the corresponding first conductive connecting part 400, and then be electrically connected with the driving board 302 through the electrical connection between the adapter board 301 and the driving board 302. The inside of the adapter board 301 in the driving assembly 300 can be integrated with a second circuit A2 for connecting the plurality of lasers 200 in series. Here, the first end of each first conductive connecting part 400 can be electrically connected with the corresponding laser 200, and the second end of each first conductive connecting part 400 can be electrically connected with the adapter board 301. The second ends of the plurality of first conductive connecting parts 400 can be connected together through the second circuit A2, thereby realizing the series connection of the plurality of lasers 200.

[0112] For example, in the case that the number of lasers 200 in the projection device is two, the number of first conductive connecting parts 400 in the projection device is also two. The first end of the first conductive connecting part 400 can be electrically connected with the corresponding laser 200, and the second end of the first conductive connecting part 400 can be electrically connected with the adapter board 301. The two ends of the second circuit A2 integrated in the inside of the adapter board 301 can be respectively electrically connected with the second ends of the two first conductive connecting parts 400, so as to realize the series connection of the two lasers 200.

[0113] It should be noted that in the case that the driving assembly 300 in the projection device comprises the adapter board 301 and the driving board 302, and the plurality of lasers 200 are electrically connected with the driving assembly 300 through a plurality of first conductive connecting parts 400, the inside of the adapter board 301 can be integrated with a plurality of circuits for connecting the second ends of the first conductive connecting parts 400 and the driving board 302. If the inside of the adapter board 301 is further integrated with the second circuit A2, the plurality of lasers 200 are connected in series. If the inside of the adapter board 301 is not integrated with the second circuit A2 for connecting the plurality of lasers 200 in series, the plurality of lasers 200 are connected in parallel.

[0114] Optionally, as shown in Figure 13 and Figure 14 In the case that the driving assembly 300 in the projection device includes the driving board 302, and the plurality of lasers 200 are electrically connected with the driving assembly 300 through the plurality of first conductive connecting parts 400, each laser 200 can be electrically connected with the driving board 302 in the driving assembly 300 through one first conductive connecting part 400. Here, the plurality of lasers 200 are connected in parallel.

[0115] Optionally, as shown in Figure 17 , Figure 17 is a top view of part of structure in another projection device provided by another embodiment of the present application. In the case that the driving assembly 300 in the projection device includes the driving board 302, the number of the driving boards 302 can be the same as the number of the plurality of lasers 200, and the plurality of driving boards 302 and the plurality of lasers 200 can be one-to-one corresponding. Each laser 200 can be electrically connected with the corresponding driving board 302 through one first conductive connecting part 400. Here, the plurality of lasers 200 are connected in parallel.

[0116] Optionally, as shown in Figure 18 and Figure 19 , Figure 18 is a structure schematic diagram of a projection device not including a shell provided by an embodiment of the present application, Figure 19 is a structure schematic diagram of another first conductive connecting part provided by an embodiment of the present application. It should be noted that, Figure 18 and Figure 19 are schematic diagrams of the first mounting surface and the second mounting surface of the shell in the first case. And as shown in Figure 20 and Figure 21 , Figure 20 is a structure schematic diagram of another projection device not including a shell provided by an embodiment of the present application, Figure 21 is a structure schematic diagram of still another first conductive connecting part provided by an embodiment of the present application. It should be noted that, Figure 20 and Figure 21 are schematic diagrams of the first mounting surface and the second mounting surface of the shell in the first case.

[0117] The first end of the first conductive connecting part 400 can have a first connector 601, the laser 200 can have a second connector 602 plugged with the first connector 601, and the laser 200 can be electrically connected with the first end of the first conductive connecting part 400 through plugging of the first connector 601 and the second connector 602. The second end of the first conductive connecting part 400 can be welded with the driving assembly 300. For example, when the driving assembly 300 includes the adapter board 301 and the driving board 302, the second end of the first conductive connecting part 400 can be welded with the adapter board 301 in the driving assembly 300. In this way, compared with that the laser is directly welded with the adapter board, the first end of the first conductive connecting part 400 is plugged with the laser 200 through the connector, and the second end of the first conductive connecting part 400 is welded with the adapter board 301, the connection efficiency of the laser 200 and the driving assembly 300 can be improved.

[0118] Alternatively, the second end of the first conductive connecting part 400 has a third connector 603, and the driving assembly 300 has a fourth connector 604 plugged with the third connector 603, and the second end of the first conductive connecting part 400 can be electrically connected with the driving assembly 300 through plugging of the third connector 603 and the fourth connector 604. The first end of the first conductive connecting part 400 can be welded with the laser 200. In this way, compared with that the laser is directly welded with the adapter board, the second end of the first conductive connecting part 400 is plugged with the driving assembly 300 through the connector, and the first end of the first conductive connecting part 400 is welded with the laser 200, the connection efficiency of the laser 200 and the driving assembly 300 can be improved.

[0119] For example, when the driving assembly 300 includes the adapter board 301 and the driving board 302, the adapter board 301 can have the fourth connector 604, the second end of the first conductive connecting part 400 can be electrically connected with the adapter board 301 through plugging of the third connector 603 and the fourth connector 604, and further can be electrically connected with the driving board 302. When the driving assembly 300 includes the driving board 302, the driving board 302 can have the fourth connector 604, and the second end of the first conductive connecting part 400 can be electrically connected with the driving board 302 through plugging of the third connector 603 and the fourth connector 604.

[0120] Alternatively, the first end of the first conductive connecting part 400 can have a first connector 601, the laser 200 can have a second connector 602 plugged with the first connector 601, and the laser 200 can be electrically connected with the first end of the first conductive connecting part 400 through plugging of the first connector 601 and the second connector 602. The second end of the first conductive connecting part 400 has a third connector 603, and the driving assembly 300 has a fourth connector 604 plugged with the third connector 603, and the second end of the first conductive connecting part 400 can be electrically connected with the driving assembly 300 through plugging of the third connector 603 and the fourth connector 604. In this way, compared with the laser being directly welded with the adapter plate, the first end and the second end of the first conductive connecting part 400 are respectively electrically connected with the laser 200 and the driving assembly 300 through plugging of the connectors, which can improve the connection efficiency of the laser 200 and the driving assembly 300.

[0121] Optionally, please refer to Figure 22 , Figure 22 is another embodiment of the present application provides a part of the structure of another projection device in the top view, the second end of the first conductive connecting part 400 has a third connector 603, the driving assembly 300 has a fourth connector 604, the number of the third connector 603 and the fourth connector 604 can be multiple. Multiple third connector 603 can be plugged with multiple fourth connector 604 one by one. The flexible circuit 400 can include: a second connection body 408 and a plurality of second connection branch 409. The second connection body 408 in the first conductive connecting part 400 can be electrically connected with the laser 200, the plurality of second connection branch 409 in the first conductive connecting part 400 can be electrically connected with the side of the second connection body 408 away from the laser 200, and the plurality of second connection branch 409 can be electrically connected with the plurality of third connector 603 one by one.

[0122] It should be noted that, since the plurality of light emitting chips in the laser 200 includes: a plurality of first light emitting chips, a plurality of second light emitting chips and a plurality of third light emitting chips, the flexible connecting part 400 can have at least three second connection branch 409, the plurality of first light emitting chips can be connected in series through the second connection body 408 and one second connection branch 409 and be electrically connected with the driving assembly 300, the plurality of second light emitting chips can be connected in series through the second connection body 408 and another second connection branch 409 and be electrically connected with the driving assembly 300, and the plurality of third light emitting chips can be connected in series through the second connection body 408 and another second first conductive connecting part 404 and be electrically connected with the driving assembly 300.

[0123] In this way, the third connector 603 electrically connected with each second connection branch 409, and the fourth connector 604 plugged with the third connector 603 only need to bear the current for driving the light-emitting of one light-emitting chip, compared with the current for driving the plurality of first light-emitting chips, the current for driving the plurality of second light-emitting chips and the current for driving the plurality of third light-emitting chips, which are all conducted through one third connector and one fourth connector. The current flowing through the third connector 603 and the fourth connector 604 in the present application is smaller, and thus the reliability of the third connector 603 and the fourth connector 604 is higher.

[0124] It should be noted that, as shown in Figure 10 and Figure 12 , in the case where the driving assembly 300 includes the adapter plate 301 and the driving plate 302, the driving assembly 300 can further include a second conductive connection part 303, and the adapter plate 301 and the driving plate 302 can be electrically connected through the second conductive connection part 303. For example, one end of the adapter plate 301 in the driving assembly 300 away from the first conductive connection part 302 can have a fifth connector 3011, and one end of the driving plate 302 towards the adapter plate 301 can have a sixth connector 3021. The two ends of the second conductive connection part 303 can be plugged with the fifth connector 3011 and the sixth connector 3021 respectively, so as to realize the electrical connection of the adapter plate 301 and the driving plate 302.

[0125] Optionally, please refer to Figure 23 , Figure 23 is another exploded view of the projection device provided by the embodiment of the present application. The projection device can further include at least two heat dissipation support pads 500. At least one of the at least two heat dissipation support pads 500 is located between the first conductive connection part 400 and the first mounting surface P1 of the shell 100. Here, the heat dissipation support pad 500 can be in contact with the side of the first conductive connection part 400 away from the first connector 601, and thus the heat generated by the first connector 601 can be dissipated through the heat dissipation support pad 500. At least one of the at least two heat dissipation support pads 500 is located between the first conductive connection part 400 and the second mounting surface P2 of the shell 100. Here, the heat dissipation support pad 500 can be in contact with the side of the first conductive connection part 400 away from the third connector 603, and thus the heat generated by the third connector 603 can be dissipated through the heat dissipation support pad 500.

[0126] It should be noted that, as shown in Figure 23As shown, the first mounting surface P1 can have a first limiting groove K1, and the second mounting surface P2 can have a second limiting groove K2. At least part of the heat dissipation support pad 500 between the first conductive connecting part 400 and the first mounting surface P1 of the shell 100 can be located in the first limiting groove K1. At least part of the heat dissipation support pad 500 between the first conductive connecting part 400 and the second mounting surface P2 of the shell 100 can be located in the second limiting groove K2.

[0127] In summary, the embodiment of the present application improves a projection device, which comprises a shell, a laser, a driving assembly and a first conductive connecting part. The first mounting surface in the shell for mounting the laser and the second mounting surface for mounting the driving assembly are not coplanar, so that the laser and the driving assembly in the projection device can be mounted non-coplanarly, and the non-coplanar connection of the driving assembly and the laser can be realized through the first conductive connecting part, so that the space utilization of the mounting space inside the shell can be improved, and the miniaturization of the projection device is facilitated. Through the first conductive connecting part, the electrical connection of three different types of light emitting chips for emitting three colors of laser in the plurality of functional parts of the laser and the driving assembly can be directly realized, the connection efficiency of the laser and the driving assembly is improved, and the overall assembly efficiency of the projection device is further improved.

[0128] 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.

[0129] The above description is only optional embodiments of the present application, and does not 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 application relates to a laser module. The laser module comprises a shell, a laser, a driving assembly and a first conductive connecting part. The interior of the shell has a first mounting surface and a second mounting surface which are not coplanar. The laser is mounted on the first mounting surface. At least part of the driving assembly is mounted on the second mounting surface. The first end of the first conductive connecting part is electrically connected with the laser, and the second end of the first conductive connecting part is electrically connected with the driving assembly.

2. The projection device according to claim 1, characterized in that, The laser comprises a substrate, a plurality of functional components and a plurality of groups of first connecting points on the substrate, and the plurality of functional components and the plurality of groups of first connecting points are electrically connected correspondingly. The first end of the first conductive connecting part has a plurality of groups of second connecting points, and the interior of the first conductive connecting part has a plurality of groups of signal lines; the plurality of groups of second connecting points can be electrically connected with the plurality of groups of first connecting points correspondingly, and the first end of the plurality of groups of signal lines is electrically connected with the plurality of groups of second connecting points correspondingly.

3. The projection device according to claim 2, characterized in that, The plurality of functional components comprises a first color light chip, a second color light chip and a third color light chip; the wavelength of first color light emitted by the first color light chip is greater than the wavelength of second color light emitted by the second color light chip, and is greater than the wavelength of third color light emitted by the third color light chip. The first conductive connecting part comprises a first conductive layer and a second conductive layer which are arranged in layers. In the first conductive connecting part, each signal line for electrically connecting with the first color light chip comprises a first sub-line and a second sub-line which are connected, the first sub-line is distributed in the first conductive layer, and the second sub-line is distributed in the second conductive layer; each signal line for electrically connecting with the second color light chip is distributed in the first conductive layer; and each signal line for electrically connecting with the third color light chip is distributed in the second conductive layer.

4. The projection apparatus according to claim 3, wherein, The plurality of functional components further comprises a temperature sensor. In the first conductive connecting part, each signal line for electrically connecting with the temperature sensor is distributed in the first conductive layer, or each signal line for electrically connecting with the temperature sensor is distributed in the second conductive layer, or one signal line for electrically connecting with the temperature sensor is distributed in the first conductive layer, and the other signal line for electrically connecting with the temperature sensor is distributed in the second conductive layer.

5. The projection apparatus according to claim 2, wherein, The second end of the first conductive connecting part has a plurality of groups of third connecting points, and the second end of the plurality of groups of signal lines is electrically connected with the plurality of groups of second connecting points correspondingly. The driving assembly has a plurality of groups of fourth connecting points which are electrically connected with the plurality of groups of third connecting points correspondingly.

6. The projection apparatus according to any of claims 1-5, wherein The first mounting surface and the second mounting surface are parallel, and the shell further has a supporting surface between the first mounting surface and the second mounting surface. The first conductive connection part comprises a first part, a second part and a third part connected in sequence, the second part is located between the first part and the third part and is distributed on the support surface, one end of the first part away from the second part is electrically connected with the laser, and one end of the third part away from the second part is electrically connected with the driving assembly. The extension direction of the first part is parallel to the first mounting surface, the extension direction of the third part is parallel to the second mounting surface, and the extension direction of the second part intersects with the extension direction of the first part and the extension direction of the third part.

7. The projection apparatus according to any of claims 1-5, wherein The first mounting surface and the second mounting surface intersect. The first conductive connection part comprises a fourth part and a fifth part connected in sequence, one end of the fourth part away from the fifth part is electrically connected with the laser, and one end of the fifth part away from the fourth part is electrically connected with the driving assembly. The extension direction of the fourth part is parallel to the first mounting surface, and the extension direction of the fifth part is parallel to the second mounting surface.

8. The projection apparatus according to any of claims 1-5, wherein, The projection device comprises a plurality of the lasers. A plurality of the lasers are electrically connected with the driving assembly through one first conductive connection part. The first conductive connection part comprises a first connection main body and a plurality of first connection branches, the first connection main body is electrically connected with the driving assembly, the plurality of first connection branches are electrically connected with one side of the first connection main body away from the driving assembly, and the plurality of first connection branches are electrically connected with the plurality of lasers one by one. Alternatively, a plurality of the lasers are electrically connected with the driving assembly through a plurality of the first conductive connection parts, the plurality of the lasers and the plurality of the first conductive connection parts correspond one by one, the first end of each first conductive connection part is electrically connected with the corresponding laser, and the second end of each first conductive connection part is electrically connected with the driving assembly.

9. The projection apparatus according to claim 8, wherein, The driving assembly comprises a conversion board and a driving board, the conversion board is installed on the second mounting surface, and the second end of the first conductive connection part is electrically connected with the conversion board. Alternatively, the driving assembly comprises a driving board, the driving board is installed on the second mounting surface, and the second end of the first conductive connection part is electrically connected with the driving board.

10. The projection apparatus according to claim 9, wherein, In the case that the driving assembly comprises a driving board and a plurality of the lasers are electrically connected with the driving assembly through one first conductive connection part, a first circuit for realizing series connection of the plurality of the lasers is integrated in the inside of the first connection main body. Alternatively, in the case that the driving assembly comprises a conversion board and a driving board and a plurality of the lasers are electrically connected with the driving assembly through a plurality of the first conductive connection parts, a second circuit for realizing series connection of the plurality of the lasers is integrated in the inside of the conversion board.

11. The projection apparatus according to any of claims 1-5, 9-10, wherein, The first end of the first conductive connection part has a first connector, the laser has a second connector plugged with the first connector, and the second end of the first conductive connection part is welded with the driving assembly. Or, the second end of the first conductive connecting part has a third connector, the driving assembly has a fourth connector which is plugged with the third connector, and the first end of the first conductive connecting part is welded with the laser; Or, the first end of the first conductive connecting part has a first connector, the laser has a second connector which is plugged with the first connector, and the second end of the first conductive connecting part has a third connector, the driving assembly has a fourth connector which is plugged with the third connector.

12. The projection apparatus according to claim 11, wherein, In the case that the second end of the first conductive connecting part has a third connector and the driving assembly has a fourth connector, the number of the third connectors and the fourth connectors is multiple, and multiple third connectors are plugged with multiple fourth connectors one by one. The first conductive connecting part comprises a second connecting main body and multiple second connecting branches, the second connecting main body is electrically connected with the laser, the multiple second connecting branches are electrically connected with the side of the second connecting main body which is away from the laser, and the multiple second connecting branches are electrically connected with multiple third connectors one by one.

13. The projection apparatus according to any of claims 1-5, 9-10, 12, wherein, The projection device further comprises at least two heat dissipation support pads, at least one of the at least two heat dissipation support pads is located between the first conductive connecting part and the first mounting surface, and at least one of the at least two heat dissipation support pads is located between the first conductive connecting part and the second mounting surface.

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