Driving-free small-size light source module

Abstract

The utility model discloses a drive-free small-volume light source module, which comprises a bracket and a light source assembly, and is characterized in that the light source assembly comprises a PCB (Printed Circuit Board) substrate connected with the bracket, and the PCB substrate is provided with a COB (Chip On Board) light source, an SMD (Surface Mount Device) linear constant-current IC (Integrated Circuit) and an SMD bridge rectifier which are electrically connected; a light through hole is formed in the position, corresponding to the COB light source, of the support, a material-saving structure is arranged on the support, the material-saving structure comprises a plurality of avoiding communicating cavities, and the patch type linear constant-current ICs and the patch bridge rectifiers are arranged on the avoiding communicating cavities; the material-saving structure further comprises a plurality of first material-saving grooves and a plurality of second material-saving grooves. According to the utility model, the driving-free structural design is adopted, the patch type linear constant-current IC and the patch bridge rectifier are adopted to replace an external driving power supply and are arranged in the PCB substrate of the COB light source, and through the arrangement of a material-saving structure, the PCB substrate is adaptively connected with the bracket, so that the size of the light source module is reduced to the greatest extent, and the light source scheme of a small-size lamp product is met.

Description

Technical Field

[0001] The utility model relates to the technical field of lamps, in particular to a small-volume light source module that does not require driving. Background Art

[0002] In the prior art, the light source module is provided with a COB light source separately on the PCB board and then mounted on the bracket, and then connected to an external larger driving power source to form a whole;

[0003] In the above structure, the driving power supply is too large to be placed on the bracket, thereby increasing the overall size of the light source module and being unable to be applied to small-volume lamps, thus limiting the scope of application.

[0004] Therefore, it is urgent to design a small-volume light source module that does not require a driver. The chip-type linear constant current IC and chip bridge stack are used instead of the external driving power supply to be built into the PCB substrate of the COB light source. By setting a material-saving structure, the PCB substrate and the bracket are adapted to be connected, thereby minimizing the size of the light source module to the greatest extent and meeting the light source solution for small-volume lighting products. Utility Model Content

[0005] In order to solve the above problems, the technical solutions adopted by the utility model are as follows:

[0006] A small-volume, driver-free light source module, characterized in that it comprises a bracket and a light source assembly, characterized in that the light source assembly comprises a PCB substrate connected to the bracket, and the PCB substrate is provided with an electrically connected COB light source, a SMD linear constant current IC and a SMD bridge stack;

[0007] A light-through hole is provided at a position of the bracket corresponding to the COB light source, and a material-saving structure is provided on the bracket. The material-saving structure includes a plurality of avoidance connecting cavities, and the SMD linear constant current IC and the SMD bridge are stacked on the avoidance connecting cavities.

[0008] Preferably, the material saving structure further includes a plurality of first material saving grooves and second material saving grooves.

[0009] Preferably, a mounting hole is provided on the first material saving groove and / or the second material saving groove.

[0010] Preferably, the bracket is provided with a focusing ring protruding from the bracket surface around the outer side of the light-through hole.

[0011] Preferably, the SMD linear constant current IC and the SMD bridge stack are arranged in the same avoidance connecting cavity or different avoidance connecting cavities.

[0012] Preferably, the light through hole is coaxial or non-coaxial with the bracket.

[0013] Preferably, the bracket is made of plastic or metal.

[0014] Preferably, the bracket is connected to the PCB substrate by threaded connection, snap connection, plug connection or lock connection or a combination of these.

[0015] Preferably, the material-saving structure further includes a mounting groove arranged on the back side of the bracket.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The utility model adopts a driver-free structural design, and uses a surface-mount linear constant current IC and a surface-mount bridge stack instead of an external driving power supply, which are built into the PCB substrate of the COB light source. Through the setting of a material-saving structure, the PCB substrate and the bracket are adapted and connected, which minimizes the size of the light source module and meets the light source solution of small-volume lighting products.

[0018] 2. By setting a material-saving structure on the bracket, the weight of the bracket can be reduced while ensuring the strength of the bracket, saving costs and improving installation compatibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an explosion diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the bracket and the light source assembly in the utility model in the assembled state;

[0021] Figure 3 This is a schematic diagram of the back perspective structure of the bracket in the utility model;

[0022] Among them: bracket 1, light source assembly 2, material saving structure 3, mounting hole 10, light through hole 11, focusing ring 12, PCB substrate 21, COB light source 22, SMD linear constant current IC 23, SMD bridge stack 24, avoidance connecting cavity 31, first material saving groove 32, second material saving groove 33, mounting groove 34. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be an element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an element centered thereon at the same time. The terms "vertical", "horizontal", "left", "right", "up", "down", "front", "rear" and similar expressions used herein are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0026] Below, in conjunction with the accompanying drawings and specific implementation methods, the utility model is further described:

[0027] like Figure 1-3 As shown, a small-volume light source module without driver includes a bracket 1 and a light source assembly 2. The light source assembly 2 includes a PCB substrate 21 connected to the bracket 1, and an electrically connected COB light source 22, a SMD linear constant current IC 23 and a SMD bridge stack 24 are arranged on the PCB substrate 21;

[0028] A light-through hole 11 is provided at a position corresponding to the bracket 1 and the COB light source 22 . A material-saving structure 3 is provided on the bracket 1 . The material-saving structure 3 includes a plurality of avoidance connecting cavities 31 . The SMD linear constant current IC 23 and the SMD bridge stack 24 are disposed on the avoidance connecting cavities 31 .

[0029] In this embodiment, a driver-free structural design is adopted, and a surface-mount linear constant current IC23 and a surface-mount bridge stack 24 are used instead of an external driving power supply and are built into the PCB substrate 21 of the COB light source 22. By setting the material-saving structure 3, the PCB substrate 21 is adapted to be connected with the bracket 1, thereby minimizing the size of the light source module to the greatest extent and meeting the light source solution for small-volume lighting products.

[0030] In this embodiment, the arrangement of the avoidance communication cavity 31 allows the COB light source 22 to be more closely mounted on the bracket 1 , and facilitates effective heat dissipation of the SMD linear constant current IC 23 and the SMD bridge stack 24 .

[0031] Further, such as Figure 1 , 2 As shown in FIG. 3 , under the condition of ensuring the strength of the bracket 1 , in order to reduce the weight of the bracket 1 and save costs, the material-saving structure 3 also includes a plurality of first material-saving grooves 32 and second material-saving grooves 33 .

[0032] Further, such as Figure 1 , 2 As shown in FIG. 3 , in order to facilitate the connection between the bracket 1 and the lamp installation position and reduce the occupied space, the first material-saving groove 32 and / or the second material-saving groove 33 are provided with a mounting hole 10 .

[0033] Further, such as Figure 1 , 2 As shown, in order to improve the light emitting and focusing effect of the COB light source 22 , the bracket 1 is provided with a focusing ring 12 protruding from the surface of the bracket 1 around the outer side of the light through hole 11 .

[0034] Further, such as Figure 2 As shown, in order to adapt to the installation of lamps with different structures, the SMD linear constant current IC 23 and the SMD bridge stack 24 are arranged in the same avoidance connecting cavity 31 or different avoidance connecting cavities 31 .

[0035] Further, such as Figure 1 As shown, in order to meet the installation requirements of lamps with different structures, the light hole 11 is arranged coaxially or non-coaxially with the bracket 1.

[0036] Furthermore, the bracket 1 is made of plastic or metal.

[0037] Furthermore, in order to meet the installation requirements of lamps with different structures, the bracket 1 is connected to the PCB substrate 21 by threaded connection, snap connection, plug connection or lock connection or a combination thereof.

[0038] Further, such as Figure 3 As shown, in order to pre-position the light source module with the lamp installation position before installation, the material-saving structure 3 also includes a mounting groove 34 arranged on the back side of the bracket 1 .

[0039] For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all of these changes and deformations should fall within the scope of protection of the claims of the utility model patent.

Claims

1. A small-volume light source module without driver, characterized in that: It includes a bracket and a light source assembly, wherein the light source assembly includes a PCB substrate connected to the bracket, and the PCB substrate is provided with an electrically connected COB light source, a SMD linear constant current IC and a SMD bridge stack; A light-through hole is provided at a position of the bracket corresponding to the COB light source, and a material-saving structure is provided on the bracket. The material-saving structure includes a plurality of avoidance connecting cavities, and the SMD linear constant current IC and the SMD bridge are stacked on the avoidance connecting cavities.

2. The small-volume, driver-free light source module according to claim 1, characterized in that: The material saving structure further includes a plurality of first material saving grooves and second material saving grooves.

3. The small-volume, driver-free light source module according to claim 2, characterized in that: The first material saving groove and / or the second material saving groove are provided with a mounting hole.

4. The small-volume, driver-free light source module according to claim 1, characterized in that: The bracket is located on the outer side of the light-through hole and is provided with a focusing ring protruding from the bracket surface.

5. The small-volume, driver-free light source module according to claim 1, characterized in that: The SMD linear constant current IC and the SMD bridge stack are arranged in the same avoidance connecting cavity or in different avoidance connecting cavities.

6. The small-volume, driver-free light source module according to claim 1, characterized in that: The light-through hole is coaxial with or not coaxial with the bracket.

7. The small-volume, driver-free light source module according to claim 1, characterized in that: The bracket is made of plastic or metal.

8. The small-volume, driver-free light source module according to claim 1, characterized in that: The bracket is connected to the PCB substrate by threading, snapping, plugging or locking, or a combination of these.

9. The small-volume, driver-free light source module according to claim 1, characterized in that: The material-saving structure also includes a mounting groove arranged on the back side of the bracket.

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