Light source fixing structure and lamp

Abstract

The utility model provides a light source fixing structure and a lamp, the lamp comprises the light source fixing structure and a light source, the light source fixing structure is used for fixing the light source, the light source comprises a substrate and a lamp body arranged on the substrate, the light source fixing structure comprises a cylinder body and a pressing plate, a mounting plate is arranged in the cylinder body, the pressing plate is arranged in the cylinder body, and the mounting plate is arranged on the mounting plate. The pressing plate and the mounting plate abut against the two sides of the base plate in the axial direction of the barrel, the pressing plate can elastically deform, a positioning groove is formed in the side, facing the mounting plate, of the pressing plate, at least one part of the base plate is arranged in the positioning groove, the positioning groove provides extrusion force for the base plate through elastic deformation, and the pressing plate is further provided with a via hole communicated with the positioning groove. The lamp body is exposed through the via hole. The light source fixing structure and the lamp can solve the problem that in the prior art, a lamp bead in a lamp is inconvenient to fix.

Description

Technical Field

[0001] The utility model relates to the technical field related to lamps, and in particular to a light source fixing structure and a lamp. Background Art

[0002] At present, in order to achieve good lighting effects, spotlights on the market all use a new type of high-power LED chip COB integrated lamp beads. The power is high and the heat is highly concentrated, so the COB lamp bead substrate needs a material with fast heat dissipation. In addition, because the driver is a high-voltage circuit (220V, AC), a material with good insulation is required. Using thin-plate ceramic as the COB lamp bead substrate is the best solution. The thinner the ceramic substrate, the faster the heat conduction and the less the thermal resistance. With this solution, the ceramic substrate will crack due to gravity trauma due to the defects of the original material characteristics, and the COB lamp bead will fail and not light up.

[0003] The ceramic COB lamp beads on the market cannot be directly fixed to the base plate because they are prone to cracking. They are assembled and fixed to the heat sink by a plastic pressing sheet with perforated screws to press the ceramic COB lamp bead base plate. The thickness of the lamp bead base plate and the thickness of the plastic pressing sheet have tolerances in production, which directly affect the fixing effect. If the thickness tolerance is too thin, the fixation will not be tight, affecting the heat dissipation strength and reducing the product life; if the thickness tolerance is too thick, the fixation force is heavy and the lamp beads are prone to cracking and failure, resulting in the lamp not lighting up.

[0004] As can be seen from the above, the lamp beads in the current lamps have the problem of being inconvenient to fix. Utility Model Content

[0005] The main purpose of the utility model is to provide a light source fixing structure and a lamp, so as to solve the problem that the lamp beads in the lamp in the prior art are inconvenient to fix.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a light source fixing structure is provided for fixing the light source, wherein the light source includes a substrate and a lamp body arranged on the substrate, the light source fixing structure includes a cylinder, the interior of the cylinder has a mounting plate; a pressure plate, the pressure plate is arranged inside the cylinder, the pressure plate and the mounting plate abut on both sides of the substrate along the axial direction of the cylinder, the pressure plate can undergo elastic deformation, the pressure plate has a positioning groove on the side facing the mounting plate, at least a portion of the substrate is arranged inside the positioning groove, the positioning groove provides extrusion force for the substrate through elastic deformation, the pressure plate also has a through hole arranged to communicate with the positioning groove, and the lamp body is exposed through the through hole.

[0007] Furthermore, a deformation hole communicating with the positioning groove is provided on the peripheral edge of the groove bottom surface of the positioning groove, and at least one deformation hole is provided, and each deformation hole extends along the circumferential direction of the groove bottom surface of the positioning groove.

[0008] Furthermore, the opening of the positioning groove is rectangular, and the side of the pressure plate facing the mounting plate also has a deformation groove connected to the positioning groove, and each corner of the positioning groove is provided with a deformation groove.

[0009] Furthermore, the light source fixing structure also includes a positioning structure arranged outside the positioning groove, the positioning structure protrudes toward one side of the mounting plate, the mounting plate has a positioning hole, and at least a part of the positioning structure extends into the positioning hole.

[0010] Furthermore, a plurality of positioning structures are provided, at least one of which is formed with a channel for the power line to pass through; and / or at least two of the positioning structures are symmetrically arranged on both sides of the positioning groove.

[0011] Furthermore, the pressing plate is detachably connected to the cylinder or the mounting plate.

[0012] Furthermore, the pressing plate and the mounting plate have aligned fixing holes, the fixing holes on the pressing plate are symmetrically arranged on both sides of the positioning groove, and the light source fixing structure also includes fasteners, which fix the mounting plate and the pressing plate through the fixing holes.

[0013] Furthermore, the axial pressure plate and the mounting plate are abutted along the cylinder, the mounting plate blocks the notch of the positioning groove to form an installation space, and the base plate is abutted and fixed inside the installation space.

[0014] Furthermore, a boss is provided on the bottom surface of the positioning groove and is protruded toward one side of the mounting plate, and the boss along the axial direction of the cylinder body and the mounting plate abut against two sides of the mounting plate.

[0015] Furthermore, the via hole is arranged on the bottom surface of the positioning groove, and the bottom surface of the positioning groove also has an avoidance hole, which is arranged on one side of the via hole and is used to avoid the wiring terminal of the substrate.

[0016] According to another aspect of the utility model, a lamp is provided, which includes the above-mentioned light source fixing structure, a light source and a power supply, the light source includes a substrate and a lamp body arranged on the substrate, the substrate has a wiring terminal electrically connected to the lamp body, the light source fixing structure fixes the light source, the power supply is arranged on the cylinder of the light source fixing structure, and the power supply is electrically connected to the wiring terminal through a power cord.

[0017] Applying the technical solution of the utility model, the lamp includes a light source fixing structure and a light source, the light source fixing structure is used to fix the light source, wherein the light source includes a substrate and a lamp body arranged on the substrate, the light source fixing structure includes a cylinder and a pressure plate, the cylinder has a mounting plate inside, the pressure plate is arranged inside the cylinder, the pressure plate and the mounting plate abut on both sides of the substrate along the axial direction of the cylinder, the pressure plate can undergo elastic deformation, the pressure plate has a positioning groove on the side facing the mounting plate, at least a portion of the substrate is arranged inside the positioning groove, the positioning groove provides extrusion force for the substrate through elastic deformation, the pressure plate also has a through hole arranged to communicate with the positioning groove, and the lamp body is exposed through the through hole.

[0018] From the above, it can be seen that the light source fixing structure of the present application adopts a positioning groove to fix the substrate. Through the elastic deformation ability of the light source fixing structure itself, the substrate can be clamped and fixed by elastic force. At the same time, at least a part of the substrate is placed inside the positioning groove to protect and position the substrate. When subjected to external force, the light source fixing structure can buffer the external force by deformation, thereby avoiding the phenomenon of cracking of the substrate due to force. At the same time, the pressure plate that is deformed by force provides a stronger holding force for fixing the substrate, thereby improving the stability of the substrate fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0020] Figure 1 A three-dimensional structural schematic diagram of the lamp of the utility model is shown;

[0021] Figure 2 A side view of the lamp of the present invention is shown;

[0022] Figure 3 Shows Figure 2 The AA section view in the figure;

[0023] Figure 4 Shows Figure 3 The enlarged view of point B in FIG.

[0024] Figure 5 An exploded view of the light source fixing structure of the utility model is shown;

[0025] Figure 6 A three-dimensional structural schematic diagram of a pressing plate of the utility model is shown;

[0026] Figure 7 Another three-dimensional structural schematic diagram of the pressing plate of the utility model is shown;

[0027] Figure 8A schematic diagram showing the matching structure of the pressing plate and the light source of the utility model is shown;

[0028] Fig. 9 A schematic diagram of the matching structure of another pressing plate and a light source of the utility model is shown.

[0029] The above drawings include the following reference numerals:

[0030] 10. Cylinder; 110. Mounting cavity; 120. Mounting plate; 121. Positioning hole; 20. Pressing plate; 210. Positioning groove; 220. Through hole; 230. Deformation hole; 240. Fixing hole; 250. Avoidance hole; 260. Channel; 270. Boss; 280. Positioning structure; 290. Deformation groove; 30. Base plate; 310. Wiring terminal; 40. Lamp body. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0033] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0034] In order to solve the problem that the lamp beads in the prior art lamps are inconvenient to fix, such as Figures 1 to 3 As shown, the utility model provides a lamp. In this embodiment, the lamp at least includes a light source, a power source and a light source fixing structure, the light source includes a substrate 30 and a lamp body 40 arranged on the substrate 30, the substrate 30 has a wiring terminal 310 electrically connected to the lamp body 40, the light source fixing structure fixes the light source, the power source is arranged on the barrel 10 of the light source fixing structure, and the power source is electrically connected to the wiring terminal 310 through a power line.

[0035] Among them, the lamps are spotlights or downlights.

[0036] This embodiment adopts a new light source fixing structure to fix the light source, which effectively avoids the phenomenon that the substrate 30 of the light source in the prior art is easy to crack during the positioning process; the light source fixing structure in this embodiment provides a clamping force to fix the substrate 30 through elastic deformation. Since the light source fixing structure of the present application has the ability of elastic deformation, it can not only fix the substrate 30 through elasticity, but also buffer the external force through deformation when subjected to external force, thereby protecting the light source. That is, the light source fixing structure provided by this embodiment can not only achieve stable fixing of the light source but also prevent the substrate 30 from cracking.

[0037] like Figures 1 to 9 As shown, the lamp includes a light source fixing structure and a light source, the light source fixing structure is used to fix the light source, wherein the light source includes a substrate 30 and a lamp body 40 arranged on the substrate 30, the light source fixing structure includes a cylinder 10 and a pressure plate 20, the cylinder 10 has a mounting plate 120 inside, the pressure plate 20 is arranged inside the cylinder 10, along the axial direction of the cylinder 10, the pressure plate 20 and the mounting plate 120 abut on both sides of the substrate 30, the pressure plate 20 can undergo elastic deformation, the pressure plate 20 has a positioning groove 210 on the side facing the mounting plate 120, at least a portion of the substrate 30 is arranged inside the positioning groove 210, the positioning groove 210 provides an extrusion force for the substrate 30 through elastic deformation, and the pressure plate 20 also has a through hole 220 arranged to communicate with the positioning groove 210, and the lamp body 40 is exposed through the through hole 220.

[0038] Specifically, the light source fixing structure of the present application adopts a positioning groove 210 to fix the substrate 30. Through the elastic deformation ability of the light source fixing structure itself, the substrate 30 can be clamped and fixed by elastic force. At the same time, at least a part of the substrate 30 is accommodated in the interior of the positioning groove 210 to protect and position the substrate 30. When subjected to external force, the light source fixing structure can buffer the external force by deformation, thereby avoiding the phenomenon of cracking of the substrate 30 due to force. At the same time, the pressure plate 20 that is deformed by force provides a stronger holding force for fixing the substrate 30, thereby improving the stability of the fixation of the substrate 30.

[0039] Among them, the light source is COB integrated lamp beads.

[0040] Furthermore, the barrel 10 has an installation cavity 110 with an opening at one end. The installation cavity 110 is a cylindrical structure. The open end of the barrel 10 is used to emit light outward. The installation plate and the pressure plate 20 are both arranged inside the installation cavity 110.

[0041] In this embodiment, the mounting plate 120 is disposed on the side of the light source facing away from the opening of the barrel 10 , and the mounting plate 120 is used to provide a mounting position for fixing the pressing plate 20 and the light source.

[0042] The via hole 220 is arranged at the bottom surface of the positioning groove 210, so that after the substrate 30 is fixed inside the positioning groove 210, the lamp body 40 is exposed through the via hole 220, so as to fix the substrate 30 without affecting the light emission of the lamp body 40, thereby improving the stability of the light source fixation.

[0043] like Figures 4 to 9 As shown, the peripheral edge of the bottom surface of the positioning groove 210 also has a deformation hole 230 connected to the positioning groove 210 , and at least one deformation hole 230 is provided, and each deformation hole 230 extends along the circumferential direction of the bottom surface of the positioning groove 210 .

[0044] Specifically, in order to improve the elastic deformation of the positioning groove 210 of the pressure plate 20, the structural setting of the deformation hole 230 is adopted to assist the deformation. By setting the deformation hole 230, when the substrate 30 is installed inside the positioning groove 210, the deformation effect of the positioning groove 210 is improved by changing the shape of the deformation hole 230. The restoring force of the positioning groove 210 after the elastic deformation clamps and fixes the substrate 30.

[0045] The pressing plate 20 is made of plastic material, and the pressing plate 20 may also be made of other materials that can undergo elastic deformation.

[0046] In this embodiment, the deformation hole 230 is provided by one or more. When the deformation hole 230 is provided by more than one, the deformation holes 230 are arranged at intervals along the circumference of the bottom surface of the positioning groove 210, so as to facilitate the overall deformation of the positioning groove 210 instead of partial deformation. The deformation hole 230 is a long strip hole extending along the circumference of the bottom surface of the positioning groove 210.

[0047] like Figures 4 to 9 As shown, the opening of the positioning groove 210 is rectangular, and the side of the pressing plate 20 facing the mounting plate 120 also has a deformation groove 290 connected to the positioning groove 210 , and each corner of the positioning groove 210 is provided with a deformation groove 290 .

[0048] Specifically, the deformation groove 290 is provided to further improve the deformation effect of the positioning groove 210, so as to facilitate the installation and fixing of the substrate 30. The structural setting of the positioning groove 210 matches the substrate 30, that is, the positioning groove 210 in this embodiment is a rectangular groove to adapt to the substrate 30 with a cubic structure.

[0049] It is understandable that when the structure of the substrate 30 changes, the structure of the positioning groove 210 can be adaptively changed, and the structure of the positioning groove 210 is based on matching and fixing the substrate 30 .

[0050] In this embodiment, a deformation groove 290 is provided at the corner of the positioning groove 210 to facilitate expansion of the corner area, thereby facilitating fixing the substrate 30 inside the elastically deformable positioning groove 210 .

[0051] like Figures 4 to 9 As shown, the light source fixing structure also includes a positioning structure 280 arranged outside the positioning groove 210 , the positioning structure 280 protrudes toward one side of the mounting plate 120 , the mounting plate 120 has a positioning hole 121 , and at least a portion of the positioning structure 280 extends into the positioning hole 121 .

[0052] Specifically, the positioning protrusion is extended into the positioning hole 121 to achieve limited installation. The positioning structure 280 and the positioning hole 121 are provided to improve the installation accuracy of the pressure plate 20. At the same time, the positioning protrusion and the positioning hole 121 also avoid the relative slip between the pressure plate 20 and the mounting plate 120, which may cause damage to the light source. The present application improves the stability of the installation of the pressure plate 20 by providing the positioning protrusion and the positioning hole 121, thereby ensuring the stability of the installation of the light source.

[0053] The structure of the positioning structure 280 may be a columnar protrusion, an arc-shaped plate structure, a rectangular plate structure, etc. It is understandable that the positioning holes 121 and the positioning structures 280 in this embodiment are arranged in a one-to-one correspondence for limiting positioning.

[0054] Furthermore, a plurality of positioning structures 280 are provided, and a channel 260 is formed on at least one of the positioning structures 280. The channel 260 is used for the power line to pass through. The arrangement of the channel 260 structure facilitates wiring to achieve electrical connection between the light source and the power supply.

[0055] In this embodiment, in order to further improve the installation stability between the pressing plate 20 and the mounting plate 120 , at least two of the positioning structures 280 are symmetrically arranged on both sides of the positioning groove 210 .

[0056] In this embodiment, the pressing plate 20 may be detachably connected to the cylinder 10 , and the pressing plate 20 may also be detachably connected to the mounting plate 120 .

[0057] In this embodiment, the pressing plate 20 is preferably detachably connected to the mounting plate 120. Figures 6 to 9 As shown, the pressing plate 20 and the mounting plate 120 have aligned fixing holes 240, and the fixing holes 240 on the pressing plate 20 are symmetrically arranged on both sides of the positioning groove 210. The light source fixing structure also includes fasteners, and the fasteners fix the mounting plate 120 and the pressing plate 20 through the fixing holes 240. By providing aligned fixing holes 240 on the pressing plate 20 and the mounting plate 120, it is convenient to fix the pressing plate 20 and the mounting plate 120 to be connected.

[0058] The fastener may be a bolt structure.

[0059] like Figures 4 to 9As shown, the pressure plate 20 and the mounting plate 120 are abutted along the axial direction of the cylinder 10, the mounting plate 120 blocks the notch of the positioning groove 210 to form an installation space, and the base plate 30 is abutted and fixed inside the installation space.

[0060] The pressure plate 20 and the mounting plate 120 are arranged in abutment with each other to achieve abutment at both ends of the substrate 30 along the axial direction of the cylinder 10, and at the same time, the inner wall surface of the positioning groove 210 abuts against the peripheral side surface of the substrate 30, thereby achieving abutment against each outer surface of the substrate 30, which is beneficial to improving the installation stability of the substrate 30; at the same time, since the pressure plate 20 is elastic, the setting of the positioning groove 210 has the effect of protecting the substrate 30, and the light source fixing structure of this embodiment avoids the phenomenon of cracking of the substrate 30.

[0061] like Figure 7 As shown, a boss 270 is provided on the bottom surface of the positioning groove 210 and is protruded toward one side of the mounting plate 120 . The boss 270 and the mounting plate 120 are in contact with each other on both sides of the mounting plate 120 along the axial direction of the cylinder 10 .

[0062] Specifically, this embodiment sets a boss 270 on the bottom surface of the positioning groove 210 so that the boss 270 abuts against the substrate 30, thereby avoiding the problem that the substrate 30 with a smaller thickness can move inside the positioning groove 210; this embodiment further enhances the stability of the basic installation by setting the boss 270.

[0063] In this embodiment, the boss 270 along the axial direction of the cylinder 10 abuts against one end surface of the base plate 30 , and the mounting plate 120 abuts against the other end surface of the base plate 30 .

[0064] The boss 270 is preferably a cylindrical or cubic structure, and the boss 270 is based on being able to provide an abutting plane, and abuts against the substrate 30 through the abutting plane.

[0065] In this embodiment, a plurality of bosses 270 are provided, and the plurality of bosses 270 are arranged at intervals on the bottom surface of the positioning groove 210. The arrangement of the plurality of bosses 270 is conducive to improving the stability of the bosses 270 against the substrate 30 and avoiding the substrate 30 from tilting.

[0066] like Figure 6 and Figure 7 As shown, the via hole 220 is arranged on the bottom surface of the positioning groove 210 , and the bottom surface of the positioning groove 210 also has an avoidance hole 250 , which is arranged on one side of the via hole 220 and is used to avoid the terminal 310 of the substrate 30 .

[0067] In order to realize the electrical connection between the terminal 310 on the substrate 30 and the power line, a structure of setting the avoidance hole 250 is adopted to expose the terminal 310. At the same time, the avoidance hole 250 is further provided to improve the deformation ability of the pressing plate 20, so as to be convenient for clamping and fixing the substrate 30.

[0068] In the present embodiment, the opening of the avoidance hole 250 is a rectangular structure, but it can also be a circular or other shaped opening as long as the wiring terminal 310 can be exposed.

[0069] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:

[0070] The light source fixing structure of the present application adopts a positioning groove 210 to fix the substrate 30. Through the elastic deformation ability of the light source fixing structure itself, the substrate 30 can be clamped and fixed by elastic force. At the same time, at least a part of the substrate 30 is accommodated in the interior of the positioning groove 210 to protect and position the substrate 30. When subjected to external force, the light source fixing structure can buffer the external force by deformation, thereby avoiding the phenomenon of cracking of the substrate 30 due to force. At the same time, the pressure plate 20 that is deformed by force provides a stronger holding force for fixing the substrate 30, thereby improving the stability of the fixation of the substrate 30.

[0071] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0072] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0073] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0074] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A light source fixing structure, used for fixing a light source, wherein the light source comprises a substrate (30) and a lamp body (40) arranged on the substrate (30), characterized in that: The light source fixing structure comprises: A cylinder (10), wherein a mounting plate (120) is provided inside the cylinder (10); A pressure plate (20), wherein the pressure plate (20) is arranged inside the cylinder (10), and the pressure plate (20) and the mounting plate (120) abut against two sides of the substrate (30) along the axial direction of the cylinder (10), and the pressure plate (20) can undergo elastic deformation, and the pressure plate (20) has a positioning groove (210) on the side facing the mounting plate (120), and at least a part of the substrate (30) is arranged inside the positioning groove (210), and the positioning groove (210) provides an extrusion force for the substrate (30) through elastic deformation, and the pressure plate (20) also has a through hole (220) arranged to communicate with the positioning groove (210), and the lamp body (40) is exposed through the through hole (220).

2. The light source fixing structure according to claim 1, characterized in that: The peripheral edge of the groove bottom surface of the positioning groove (210) is also provided with a deformation hole (230) which is arranged in communication with the positioning groove (210), and at least one deformation hole (230) is provided, and each deformation hole (230) extends along the circumferential direction of the groove bottom surface of the positioning groove (210).

3. The light source fixing structure according to claim 1, characterized in that: The opening of the positioning groove (210) is rectangular, and the side of the pressing plate (20) facing the mounting plate (120) also has a deformation groove (290) connected to the positioning groove (210), and each corner of the positioning groove (210) is provided with the deformation groove (290).

4. The light source fixing structure according to claim 1, characterized in that: The light source fixing structure also includes a positioning structure (280) arranged outside the positioning groove (210), the positioning structure (280) protruding toward one side of the mounting plate (120), the mounting plate (120) having a positioning hole (121), and at least a portion of the positioning structure (280) extending into the positioning hole (121).

5. The light source fixing structure according to claim 4, characterized in that: The positioning structure (280) is provided with a plurality of A channel (260) is formed on at least one of the positioning structures (280), and the channel (260) is used for a power cord to pass through; and / or At least two of the positioning structures (280) are symmetrically arranged on both sides of the positioning groove (210).

6. The light source fixing structure according to claim 1, characterized in that: The pressing plate (20) is detachably connected to the cylinder (10) or the mounting plate (120).

7. The light source fixing structure according to claim 1, characterized in that: The pressing plate (20) and the mounting plate (120) are provided with fixing holes (240) arranged in alignment, the fixing holes (240) on the pressing plate (20) are symmetrically arranged on both sides of the positioning groove (210), and the light source fixing structure also includes a fastener, and the fastener fixes the mounting plate (120) and the pressing plate (20) through the fixing holes (240).

8. The light source fixing structure according to any one of claims 1 to 7, characterized in that: The pressing plate (20) and the mounting plate (120) are arranged in abutment with each other along the axial direction of the cylinder (10); the mounting plate (120) blocks the notch of the positioning groove (210) to form an installation space; and the base plate (30) is fixed in abutment with the inside of the installation space.

9. The light source fixing structure according to any one of claims 1 to 7, characterized in that: The bottom surface of the positioning groove (210) has a boss (270) protruding toward one side of the mounting plate (120), and the boss (270) and the mounting plate (120) abut against both sides of the mounting plate (120) along the axial direction of the cylinder (10).

10. The light source fixing structure according to any one of claims 1 to 7, characterized in that: The via hole (220) is arranged on the bottom surface of the positioning groove (210), and the bottom surface of the positioning groove (210) also has an avoidance hole (250). The avoidance hole (250) is arranged on one side of the via hole (220), and the avoidance hole (250) is used to avoid the connection terminal (310) of the substrate (30).

11. A lamp, characterized in that: The lamp comprises: The light source fixing structure according to any one of claims 1 to 10; A light source, the light source comprising a substrate (30) and a lamp body (40) arranged on the substrate (30), the substrate (30) having a wiring terminal (310) electrically connected to the lamp body (40), and the light source fixing structure fixing the light source; A power source is arranged on the cylinder (10) of the light source fixing structure, and the power source is electrically connected to the connection terminal (310) via a power line.

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