Light source mounting plate and light source device

Abstract

The present application discloses a light source mounting plate and a light source device, comprising: a mounting plate body, through which a light source rack is mounted on a projector base; a fixing hole is provided on one side of the mounting plate body facing the projector base, and the fixing hole is used for inserting a positioning protrusion on the projector base; a strip through hole is also provided on the mounting plate body, and the strip through hole is used for inserting a positioning screw on the projector base, and when the positioning screw passes through the strip through hole and is fastened by a nut, the projector base can be fixedly connected to the mounting plate body. The light source mounting plate and the light source device provided by the present application can quickly install the light source rack on different projector bases by providing a light source mounting plate with strong versatility, thereby improving the convenience of installing the light source rack.

Description

Technical Field

[0001] The present application relates to the field of laser projection technology, and in particular to a light source mounting plate and a light source device. Background Art

[0002] Laser projection, also known as laser projection display, is a display technology that uses red, green and blue (RGB) three primary color lasers as light sources. It can reproduce the rich and gorgeous colors of the objective world in the most realistic way, providing more shocking expression. It is an important technological innovation in the projection industry. Compared with ordinary projection, laser projection has some outstanding advantages: first, the brightness of laser projection is higher, three times that of ordinary projection, making it more comfortable for the eyes to watch movies; second, laser projection has higher color expression ability than ordinary projection, and the image layering is strong, which greatly enhances the 3D stereo effect. It brings higher brightness, wider color gamut, more flexible screen size, better color level expression, better clarity and field of view; third, the laser projection system does not contain the ultraviolet and infrared rays of conventional movie projectors, bid farewell to light pollution, and can truly achieve healthy viewing.

[0003] In the prior art, the early projector light sources were xenon lamp light sources assembled with xenon lamps as light-emitting elements. Since xenon lamp light sources are large in size and consume too much energy, they are gradually replaced by laser light sources with small size, low energy consumption, high brightness and long life. However, the existing projector base is designed according to the frame of the xenon lamp light source, and the frame of the laser light source is not compatible with the projector base, resulting in the laser light source being unable to be smoothly embedded in the projector designed according to the xenon lamp light source. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the present application provides a light source mounting plate and a light source device. By setting the light source mounting plate, the light source rack can be quickly installed on different projector bases, and the light source mounting plate has strong versatility, which improves the convenience of installing the light source rack.

[0005] This application is implemented using the following technical solutions:

[0006] In the first aspect, a light source mounting plate is provided, comprising: a mounting plate body, through which a light source frame is mounted on a projector base; a fixing hole is provided on a side of the mounting plate body facing the projector base, and the fixing hole is used for inserting a positioning protrusion on the projector base; a strip through hole is also provided on the mounting plate body, and the strip through hole is used for inserting a positioning screw on the projector base, and when the positioning screw passes through the strip through hole and is fastened by a nut, the projector base can be fixedly connected to the mounting plate body.

[0007] The light source mounting plate provided by the present application includes a mounting plate body, which has strong versatility and can enable the light source rack to be installed on different projector bases through the mounting plate body. This effectively solves the problem that when there are many projector models and different projectors have different base mounting structures, the installation process of the light source rack is more cumbersome when used in conjunction with different projector bases. This improves the installation speed of the light source rack on the projector base and has strong practicality.

[0008] Among them, a fixing hole is opened on the side of the mounting plate body facing the projector base, and the fixing hole is used for inserting the positioning protrusion on the projector base; since there are usually four universal and standardized positioning protrusions on the projector base, a fixing hole can be opened on the side of the mounting plate body facing the projector base for inserting the positioning protrusion on the projector base, so that the light source mounting plate and the projector base can be fixed in the most basic way.

[0009] In addition, a strip-shaped through hole is provided on the mounting plate body, and the strip-shaped through hole is used for inserting the positioning screw on the projector base; when the positioning screw passes through the strip-shaped through hole and is fastened by a nut, the projector base can be fixedly connected to the mounting plate body.

[0010] Since there may be protrusions such as positioning screws at some unconventional positions on the projector base, these protrusions at unconventional positions may be accommodated by opening strip-shaped through holes on the mounting plate body; on the other hand, when the fixing holes do not match the universal positioning protrusions on the projector base, the strip-shaped through holes may also provide an alternative reinforcement method for the light source mounting plate and the projector base.

[0011] The light source mounting plate of the present application has a simple structure and strong versatility. Under the premise of well controlling the production cost, it greatly improves the installation speed when the light source rack is used in conjunction with different projector bases, and is easy to implement, which is conducive to large-scale promotion and application.

[0012] In a possible design, a plurality of mounting holes are provided on the side of the mounting plate body facing the light source rack, and the mounting holes correspond one-to-one to the first through holes on the light source rack. The connecting member passes through the first through holes and is fixed in the mounting holes, thereby fixing the light source rack to the mounting plate body.

[0013] In a possible design, the mounting plate body further includes a thinned area to facilitate a user to drill a hole in the thinned area.

[0014] In a possible design, a limiting notch is formed on the edge of the mounting plate body, and the limiting notch is used for a cylinder on the projector base to be inserted into.

[0015] In a possible design, a relief groove is provided on a side of the mounting plate body facing the projector base, and the relief groove is used to accommodate a step on the projector base.

[0016] In a possible design, an inner groove is provided in the avoidance groove, and the inner groove is used to accommodate the protrusion on the step.

[0017] In a possible design, the thickness of the mounting plate body is greater than or equal to the height of the protrusion on the projector base and / or the length of the connecting member.

[0018] In a possible design, the mounting plate body is a rectangular structure, and the fixing holes include four holes, which are correspondingly arranged at the four corners of the rectangular structure.

[0019] In a possible design, a plurality of adapter holes are respectively arranged at the four corners of the mounting plate body for embedding the fixing protrusions on the projector base.

[0020] In a second aspect, a light source device is provided, which includes a light source frame and a light source mounting plate provided in any possible design of the first aspect, wherein the light source frame includes a bracket and a frame body, the brackets are respectively arranged on both sides of the frame body, and the brackets are detachably connected to the light source mounting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure in which the light source rack provided in the embodiment of the present application is installed on the projector base through the light source mounting plate;

[0022] Figure 2 This is a schematic diagram of the overall structure of the light source mounting plate provided in an embodiment of the present application;

[0023] Figure 3 This is a schematic diagram of the structure of a light source mounting plate provided in an embodiment of the present application;

[0024] Figure 4 A top view of another example of a light source mounting plate provided in an embodiment of the present application;

[0025] Figure 5 A bottom view of another example of a light source mounting plate provided in an embodiment of the present application;

[0026] Figure 6 This is another structural schematic diagram of a light source mounting plate provided in an embodiment of the present application.

[0027] Figure numerals: 10, light source rack; 11, bracket; 12, rack body; 20, light source mounting plate; 21, mounting plate body; 22, edge; 23, fixing hole; 24, strip through hole; 25, thinning area; 26, mounting hole; 27, adapter hole; 30, projector base; 31, positioning protrusion; 32, unconventional protrusion; 33, cylinder; 34, threaded hole; 111, first through hole; 112, U-shaped groove; 113, second through hole; 114, strip mouth; 221, limiting notch; 222, avoidance groove; 223, first avoidance hole; 251, second avoidance hole. DETAILED DESCRIPTION

[0028] The technical solution in the present application will be described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0029] In the description of the present application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present application, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0030] It should also be noted that, in the embodiments of the present application, the same figure mark is used to represent the same component or the same part. For the same parts in the embodiments of the present application, the figure may only mark one of the parts or components as an example. It should be understood that the figure mark also applies to other identical parts or components.

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] In the description of the present application, it should be understood that the terms "upper", "lower", "side", "inner", "outer", etc. indicate orientations or positional relationships based on the installation, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0033] The embodiment of the present application first provides a light source mounting plate, which can be widely used in the field of digital film projection equipment. For example, the light source rack can be conveniently installed on the projector base through the light source mounting plate. The light source mounting plate of the present application has strong versatility, which enables the light source rack to be installed on different projector bases, such as CP and DK series projectors, etc., which well solves the problem that when there are many projector models, different projectors have different base mounting structures, resulting in the light source rack not being able to be smoothly installed on the projector base when used with different projector bases, or the installation process between the two is relatively cumbersome. Through the light source mounting plate of the present application, the installation speed of the light source rack on the projector base is improved, which has strong practicality.

[0034] Figure 1 This is a schematic diagram of the overall structure in which the light source rack provided in an embodiment of the present application is installed on the projector base through a light source mounting plate. Figure 2 This is a schematic diagram of the overall structure of the light source mounting plate provided in an embodiment of the present application.

[0035] like Figure 1 , Figure 2 As shown, the light source mounting plate provided in the present application includes a mounting plate body 21 , and the light source frame 10 can be smoothly mounted on the projector base 30 through the mounting plate body 21 .

[0036] In the present application, the light source rack 10 may be a laser light source rack, or may be other types of light source racks such as an LED light source rack, etc., and the present application does not limit this.

[0037] The present application does not limit the type of the projector base 30 , for example, it can be a base corresponding to CP, DK series projectors, etc.

[0038] Among them, Figure 1 , Figure 2 As shown, a fixing hole 23 is formed on one side of the mounting plate body 21 facing the projector base 30 , and the fixing hole 23 is used for inserting a positioning protrusion 31 on the projector base 30 .

[0039] Since there are usually four universal and standardized positioning protrusions 31 on the projector base 30, a fixing hole 23 can be opened on the side of the mounting plate body 21 facing the projector base 30 for the positioning protrusions 31 on the projector base 30 to be inserted, so that the mounting plate body 21 and the projector base 30 can be fixed in the most basic way.

[0040] In the present application, the protrusions on the projector base 30 include protrusions of protruding columnar structures, screws, threaded rods, and threaded holes.

[0041] Optional, such as Figure 2As shown, the mounting plate body 21 is a rectangular structure, and includes four fixing holes 23, which are correspondingly arranged at the four corners of the rectangular structure.

[0042] In the embodiment of the present application, the number of the fixing holes 23 may be 4. In other embodiments, the number of the fixing holes 23 may also be 2 or 3, etc., which is not limited in the present application.

[0043] In addition, the positions and numbers of the positioning protrusions 31 may be different for different projector bases 30 , so the positions and / or numbers of the fixing holes 23 may be set accordingly according to the projector model and / or the structure of the projector base 30 .

[0044] Optionally, the fixing hole 23 may be a through hole or a groove, and the present application does not limit the type of the fixing hole 23 .

[0045] like Figure 1 , Figure 2 As shown, a strip-shaped through hole 24 is also provided on the surface of the mounting plate body 21 facing the projector base 30 .

[0046] In the present application, the projector base 30 may have protrusions at other unconventional and standardized positions in addition to the conventional and universal positioning protrusions 31. Therefore, a strip through hole 24 may be provided on the side of the mounting plate body 21 facing the projector base 30 to accommodate the protrusions at these unconventional and standardized positions, so that the light source rack 10 can be installed on the projector base 30 more smoothly.

[0047] The bar-shaped through hole 24 can be used for inserting the positioning screw on the projector base 30 . When the positioning screw passes through the bar-shaped through hole 24 and is fastened by a nut, the projector base 30 can be fixedly connected to the mounting plate body 21 .

[0048] In the present application, when the positioning protrusion 31 on the projector base 30 does not match the fixing hole 23, a positioning screw can also be passed through the bar-shaped through hole 24 and fastened with a nut to provide an alternative reinforcement method for the light source mounting plate 10 and the projector base 30.

[0049] Optional, such as Figure 2 As shown, the strip-shaped through hole 24 may include a plurality of, for example, 2 or 3. Meanwhile, the number of the strip-shaped through hole 24 may also be 1. In other embodiments, when there is no protrusion at an unconventional or standardized position on the projector base 30, the strip-shaped through hole 24 may not be provided.

[0050] In addition, if Figure 1 As shown, when there are a plurality of relatively dense non-conventional protrusions 32 at non-conventional and standardized positions on the projector base 30 , these plurality of non-conventional protrusions 32 can also be embedded in a strip-shaped through hole 24 .

[0051] In the present application, the positions of the strip through holes 24 can be based on the structure of most projector bases 30, and the positions where the protrusions appear most frequently are screened out, and then the strip through holes 24 are set at these positions. This can avoid the situation where too many strip through holes 24 are set, which will reduce the strength of the mounting plate body 21 and cause deformation or breakage of the mounting plate body 21.

[0052] It should be understood that the strip-shaped through hole 24 can also be designed as a circular through hole, a trapezoidal or diamond-shaped opening, etc. The shape of the strip-shaped through hole 24 of the present application can be selected according to the actual protrusion on the projector base 30.

[0053] Figure 3 This is a schematic diagram of the structure of an example of a light source mounting plate provided in an embodiment of the present application.

[0054] Optional, such as Figure 1 , Figure 3 As shown, a plurality of mounting holes 26 are provided on the side of the mounting plate body 21 facing the light source rack 10, and the mounting holes 25 correspond one-to-one to the first through holes 111 on the light source rack 10. The connecting member passes through the first through holes 111 and is fixed in the mounting hole 26, thereby fixing the light source rack 10 to the mounting plate body 21.

[0055] Optionally, the connecting member may be any one of a screw, a bolt, a screw, a pin, etc., which is not limited in this application.

[0056] Optionally, the thickness of the mounting plate body 21 is greater than or equal to the length of the connecting member and / or the height of the protrusion on the projector base 30 .

[0057] Here, in order to avoid the situation where the connecting piece protrudes out of the mounting hole 26 and presses against the projector base 30 due to the limited depth of the mounting hole 26 when the connecting piece is fixed in the mounting hole 26 after passing through the first through hole 111, thereby forming a gap between the bottom of the mounting plate body 21 and the outer surface of the projector base 30, making it impossible for the mounting plate body 21 to fit onto the projector base 30, in the present application, the thickness of the mounting plate body 21 can be made greater than or equal to the length of the connecting piece, so that the connecting piece will not protrude out of the mounting hole 26 when it is fixed in the mounting hole 26 after passing through the first through hole 111, so that the mounting plate body 21 can fit tightly onto the projector base 30.

[0058] Specifically, the thickness of the mounting plate body 21 may be 1.1 to 1.8 times the length of the connector. For example, the thickness of the mounting plate body 21 may be 1.1, 1.53, 1.7, 1.8, etc. times the length of the connector.

[0059] In addition, in order to prevent the protrusion on the projector base 30 from protruding out of the mounting plate body 21 after passing through the mounting plate body 21, and the protrusion supporting the bottom of the light source rack 10, so that the light source rack 10 cannot be successfully installed on the projector base 30, the thickness of the mounting plate body 21 in the present application also needs to be greater than or equal to the height of the protrusion on the projector base 30.

[0060] Specifically, the thickness of the mounting plate body 21 may be 1.1 to 2.5 times the height of the protrusion on the projector base 30. For example, the thickness of the mounting plate body 21 is 1.1, 1.2, 1.25, and 2.5 times the height of the protrusion on the projector base 30.

[0061] Specifically, the thickness of the mounting plate body 21 may also be 1.2 to 1.8 times the height of the protrusion on the projector base 30. For example, the thickness of the mounting plate body 21 is 1.2, 1.5, 1.9, and 1.8 times the height of the protrusion on the projector base 30.

[0062] Specifically, the thickness of the mounting plate body 21 may also be greater than the length of the connector and the height of the protrusion on the projector base 30 , and the thickness of the mounting plate body 21 is 1.2 to 1.5 times the larger of the length of the connector and the height of the protrusion on the projector base 30 .

[0063] Optional, such as Figure 2 As shown, the mounting plate body 21 further includes a thinned area 25 , so that the user can drill a hole in the thinned area 25 .

[0064] In the embodiment of the present application, after the light source mounting plate 20 is molded and mass-produced, when the light source rack 10 is installed on the projector base 30, there is a mismatch between the projector base 30 and the light source mounting plate 20, and it is necessary to later design a hole on the light source mounting plate 20 according to the position of the mismatched protrusion. Usually, the unexpected protrusion on the projector base 30 is generally located in the central area of ​​the mounting plate body 21, or in the area from the corner to the center, so these areas can be designed to be thinner in thickness during mold opening and mass production to form a thinned area 25, so that users can later open holes in the thinned area 25.

[0065] In addition, since the user has a certain understanding of the position of the protrusions on the projector base 30, he will set through holes in the thinned area 25 for fixing in advance, so in order to save steps later, it is not necessary to open holes in the thinned area 25.

[0066] Optional, such as Figure 3As shown, the edge 22 of the mounting plate body 21 forms a limiting notch 221, and the limiting notch 221 is used for the cylinder 33 on the projector base 30 to be inserted, so that the mounting plate body 21 can adapt to the cylinder 33 on the projector base 30, and the mounting plate body 21 and the cylinder 33 form a limiting structure.

[0067] Figure 4 A top view of another example of a light source mounting plate provided in an embodiment of the present application. Figure 5 A bottom view of another example of a light source mounting plate provided in an embodiment of the present application.

[0068] Optional, such as Figure 4 , Figure 5 As shown, there may be a step structure on the projector base 30. In order to enable the light source mounting plate 20 to fit with the projector base 30, an avoidance groove 222 may be provided on the side of the mounting plate body 21 facing the projector base 30. The avoidance groove 222 is used to accommodate the step on the projector base 30 (not shown in the figure).

[0069] Optionally, an inner groove (not shown in the figure) may be further provided in the avoidance groove 222 , and the inner groove is used to accommodate the protrusion on the step of the projector base 30 .

[0070] Optional, such as Figure 5 As shown, a first avoidance hole 223 may also be provided in the avoidance groove 222 for the protrusion on the step of the projector base 30 to be inserted.

[0071] Optional, such as Figure 5 As shown, a second avoidance hole 251 may be provided in the thinned area 25 for the protrusion on the projector base 30 to be inserted.

[0072] Optionally, when the protrusion on the projector base 30 exceeds the edge 22 of the mounting plate body 21, a connecting plate (not shown in the figure) can be fixed to the edge 22 of the mounting plate body 21, and a hole or groove can be opened on the connecting plate to accommodate the protrusion that exceeds the edge 22 of the mounting plate body 21.

[0073] Figure 6 This is another structural schematic diagram of a light source mounting plate provided in an embodiment of the present application.

[0074] Optional, such as Figure 6 As shown, a plurality of adapting holes 27 are respectively arranged at the four corners of the mounting plate body 21 for the fixing protrusions on the projector base 30 to be inserted.

[0075] In the embodiment of the present application, on some models of projector base 30, the position of the fixed protrusion is fixed, for example, located at the four corners of the mounting plate body 21, so a plurality of adapter holes can be opened at the four corners of the mounting plate body 21, thereby saving subsequent processing steps.

[0076] In a second aspect, an embodiment of the present application further provides a light source device, which includes a light source frame 10 and a light source mounting plate 20 provided in any of the aforementioned embodiments.

[0077] like Figure 1 As shown, the light source frame 10 includes a bracket 11 and a frame body 12 , and the brackets 11 are respectively arranged on both sides of the frame body 12 .

[0078] The bracket 11 is in a plate shape and is disposed on the side of the frame body 12 . The bracket 11 is a transition structure for connecting the frame body 12 with the projector base 30 or other external frames.

[0079] Specifically, the lower edge of the bracket 11 extends outward to form a transverse plate, and a plurality of first through holes 111 are formed on the transverse plate for fixed connection with the light source mounting plate 20 located at the bottom of the light source frame 10 .

[0080] Optional, such as Figure 1 As shown, a plurality of second through holes 113 are also provided on the transverse plate. When the light source mounting plate 20 and the projector base 30 are respectively provided with strip through holes 24 and threaded holes 34 corresponding to the positions of the second through holes 113, screws, bolts and other connecting parts can pass through the second through holes 113, the strip through holes 24 and the threaded holes 34 in sequence to fix the light source frame 10 to the projector base 30.

[0081] Optional, such as Figure 1 As shown, a strip opening 114 is provided on the side of the plate-shaped bracket 11 , which can cooperate with the external frame to play a role in preliminary positioning during installation. The operator can also fine-tune the position of the frame body 12 by grasping the strip opening 114 .

[0082] Optional, such as Figure 1 As shown, the light source frame 10 is provided with a U-shaped groove 112 at a position corresponding to the limiting notch 221 , and the cylinder 33 can pass through the limiting notch 33 and the U-shaped groove 112 and then be clamped on the light source frame 10 .

[0083] The bracket 11 is detachably connected to the light source mounting plate 20 .

[0084] Due to the large number of projector models, different projectors have different base mounting structures. When the mass-produced light source mounting plate 20 does not match the projector base 30, it is necessary to perform groove or hole drilling on the light source mounting plate 20 later. Therefore, the light source mounting plate 20 can be removed from the bracket 11 for later processing.

[0085] The light source mounting plate enables the light source device to be quickly installed on different projectors, thereby improving the convenience of installing the light source rack. The light source mounting plate has good versatility and reduces the costs of manpower, material resources, and financial resources.

[0086] Since the light source device adopts the light source mounting plate provided in the above embodiment, the light source device also has the technical effects corresponding to the above light source mounting plate, which will not be described in detail here.

[0087] It should be understood that the above is only to help those skilled in the art better understand the embodiments of the present application, rather than to limit the scope of the embodiments of the present application. Those skilled in the art can obviously make various equivalent modifications or changes, or combinations of any two or any multiple embodiments of the above, based on the above examples given. Such modifications, changes or combined solutions also fall within the scope of the embodiments of the present application.

[0088] It should also be understood that the above description of the embodiments of the present application focuses on emphasizing the differences between the various embodiments. The same or similar points that are not mentioned can be referenced to each other. For the sake of brevity, they will not be repeated here.

[0089] It should also be understood that the division of the methods, situations, categories and embodiments in the embodiments of the present application is only for the convenience of description and should not constitute a special limitation. The features of various methods, categories, situations and embodiments can be combined without contradiction.

[0090] It should also be understood that in the various embodiments of the present application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced to each other, and the technical features in different embodiments can be combined to form new embodiments according to their internal logical relationships.

[0091] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A light source mounting plate, characterized in that: include: A mounting plate body (21), wherein the light source frame (10) is mounted on a projector base (30) via the mounting plate body (21); A fixing hole (23) is provided on a side of the mounting plate body (21) facing the projector base (30), wherein the fixing hole (23) is used for inserting a positioning protrusion (31) on the projector base (30); The mounting plate body (21) is also provided with a strip-shaped through hole (24), and the strip-shaped through hole (24) is used for inserting a positioning screw on the projector base (30). When the positioning screw passes through the strip-shaped through hole (24) and is fastened with a nut, the projector base (30) can be fixedly connected to the mounting plate body (21); A plurality of mounting holes (26) are provided on the side of the mounting plate body (21) facing the light source frame (10), the mounting holes (26) corresponding one to one with the first through holes (111) on the light source frame (10), and the connecting member passes through the first through holes (111) and is fixed in the mounting hole (26), thereby fixing the light source frame (10) and the mounting plate body (21); The mounting plate body (21) further comprises a thinned area (25) so as to facilitate a user to open a hole in the thinned area (25).

2. The light source mounting plate according to claim 1, characterized in that: The edge (22) of the mounting plate body (21) forms a limiting notch (221), and the limiting notch (221) is used for the cylinder (33) on the projector base (30) to be inserted therein.

3. The light source mounting plate according to claim 1, characterized in that: A side of the mounting plate body (21) facing the projector base (30) is provided with an avoidance groove (222), the avoidance groove (222) being used to accommodate a step on the projector base (30).

4. The light source mounting plate according to claim 3, characterized in that: An inner groove is provided in the avoidance groove (222), and the inner groove is used to accommodate the protrusion on the step.

5. The light source mounting plate according to claim 1, characterized in that: The thickness of the mounting plate body (21) is greater than or equal to the length of the connecting piece and / or the height of the protrusion on the projector base (30).

6. The light source mounting plate according to claim 1, characterized in that: The mounting plate body (21) is in a rectangular structure, and the fixing holes (23) include four holes, which are arranged correspondingly at the four corners of the rectangular structure.

7. The light source mounting plate according to claim 6, characterized in that: A plurality of adapting holes (27) are respectively arranged at the four corners of the mounting plate body (21) for inserting the fixing protrusions on the projector base (30).

8. A light source device, characterized in that: It comprises the light source mounting plate as claimed in any one of claims 1 to 7 and the light source frame (10), the light source frame comprising a bracket (11) and a frame body (12), the brackets (11) are respectively arranged on both sides of the frame body (12), and the brackets (11) are detachably connected to the light source mounting plate (20).

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