LED lamp bead module

Abstract

The utility model provides an LED lamp bead module which comprises packaging shells, heat dissipation assemblies are arranged on the rear sides of the interiors of the packaging shells, splicing assemblies are arranged on the side edges of the packaging shells, and a plurality of packaging shells can be transversely combined and spliced through splicing plugs and splicing slots. And the extrusion force of the compression springs extrudes the positioning beads through the extrusion sheets so that the positioning beads can be clamped in the positioning grooves, auxiliary positioning is carried out on the splicing plugs inserted into the splicing slots, and the situation that the splicing plugs and the splicing slots are prone to loosening is avoided. Most heat generated by the PCB can be dissipated to the outside, meanwhile, a part of external air can conveniently enter the back heat conduction plate to conduct auxiliary ventilation cooling on the back heat conduction plate through the transverse ventilation holes, and a part of external air can conveniently enter the heat conduction pieces to conduct auxiliary ventilation cooling on the heat conduction pieces through the vertical ventilation holes and the communicating holes. Therefore, heat accumulation in the packaging shell is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of LED lamps, in particular to an LED lamp bead module. Background Art

[0002] As the name suggests, the lamp bead module is a component composed of LED lamp beads mounted on the PCB and then soldered with wires. LED lamp bead module is a type of LED module. Compared with other types of modules, it has the characteristics of large luminous angle, high brightness, and low light decay, so it is widely used in advertising signs, lighting signs, (ultra-thin) light boxes, three-dimensional luminous characters, blister characters and other advertising lighting; hotels, KTVs, shopping malls, entertainment cities, indoor (dark groove) and exterior wall lighting, landscape layout, stage decoration, city lighting, etc.

[0003] An LED lamp bead module provided by announcement number "CN209213488U" is provided with plug-in boards at the upper and lower ends of the surface of one side of the packaging shell, and power poles are provided at both ends of the surface of the packaging shell away from the plug-in boards. When in use, the power poles are plugged into the power connection holes inside the plug-in boards on the side of the adjacent packaging shell. The series connection is achieved by plugging, which is convenient for adjusting the installation quantity of the module according to the use requirements, and greatly solves the problem of large space occupied during line connection and difficult later maintenance.

[0004] However, the above technical solutions and the prior art have the following defects:

[0005] First, the heat dissipation base in the LED lamp bead module protrudes on the back of the packaging shell, which reduces the flatness of the back of the packaging shell, thereby affecting the installation stability of the packaging shell, and the raised heat dissipation base also increases the volume of the LED lamp bead module, thereby reducing the aesthetics of the LED lamp bead module. Secondly, the plug-in board and the power pole in the LED lamp bead module do not have corresponding auxiliary positioning structures, which makes the plug-in board and the power pole easy to loosen and power off after insertion, and the practicality is poor. Utility Model Content

[0006] The purpose of the utility model is to provide an LED lamp bead module to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] An LED lamp bead module comprises a packaging shell, an LED lamp bead, an LED chip and a PCB circuit board, wherein a PCB circuit board is installed inside the packaging shell, an LED chip is fixedly connected to the front end surface of the PCB circuit board, and an LED lamp bead is fixedly connected to the front end surface of the LED chip, a heat dissipation component is arranged on the rear side of the packaging shell, and the heat dissipation component is used to dissipate the heat inside the packaging shell, an assembling component is arranged on the side of the packaging shell, and the assembling component facilitates the assembly and splicing of the packaging shell.

[0009] Preferably, the assembling component includes a splicing plug, a splicing slot, a compression spring, an extrusion sheet, a positioning bead and a positioning slot; a splicing plug is provided on the left end face of the packaging shell; positioning slots are symmetrically provided on the front and rear end surfaces of the splicing plug; a splicing slot is provided on the right end face of the packaging shell; compression springs are symmetrically provided on the front and rear sides of the splicing slot; an extrusion sheet is provided on the rear end surface of the compression spring; and a positioning bead is provided in the middle position of the rear end surface of the extrusion sheet.

[0010] Preferably, the heat dissipation assembly includes a back heat conduction plate, transverse ventilation holes and a heat conduction sheet. The back heat conduction plate is installed on the rear end face of the packaging shell. A plurality of transverse ventilation holes are opened inside the back heat conduction plate. The rear end face of the PCB circuit board is attached to the heat conduction sheet.

[0011] Preferably, a plurality of connecting holes are provided inside the heat conductive sheet, the heat conductive sheet is made of a silicone heat conductive sheet, and the upper and lower end surfaces of the packaging shell are symmetrically provided with a plurality of vertical ventilation holes, and the vertical ventilation holes are connected with the connecting holes.

[0012] Preferably, mounting through holes are symmetrically provided on upper and lower sides of the back heat conducting plate, fixing screws are installed inside the back heat conducting plate, and the back heat conducting plate is made of an aluminum substrate.

[0013] Preferably, a connecting hole is provided in the middle of the splicing plug, the splicing plug matches with the splicing slot, and the positioning groove matches with the positioning bead.

[0014] Preferably, the power input end of the PCB circuit board is fixedly connected to a first power copper wire, the power output end of the PCB circuit board is fixedly connected to a second power copper wire, a packaging groove is provided on the front end surface of the packaging shell, and the annular side surfaces of the first power copper wire and the second power copper wire are both provided with insulating glue.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. By installing the heat conducting sheet, most of the heat generated by the PCB circuit board can be conducted to the back heat conducting plate, and then the back heat conducting plate will dissipate the conducted heat to the outside. At the same time, multiple horizontal ventilation holes facilitate a part of the external air to enter the back heat conducting plate for auxiliary ventilation and cooling, and multiple vertical ventilation holes and connecting holes facilitate a part of the external air to enter the heat conducting sheet for auxiliary ventilation and cooling, thereby avoiding the easy generation of heat accumulation inside the packaging shell, and this structure will not reduce the flatness and aesthetics of the back of the packaging shell during use;

[0017] 2. By inserting the splicing plug into the splicing slot, multiple packaging shells can be assembled horizontally, and the extrusion force of the compression spring will squeeze the positioning bead through the extrusion sheet to make it stuck in the positioning groove, and assist in positioning the splicing plug inserted in the splicing slot to avoid looseness between the splicing plug and the splicing slot, thereby ensuring the stability of the electrical connection between the first power copper wire and the second power copper wire, and having good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 It is a structural diagram of the assembly components and the heat dissipation components in the utility model;

[0020] Figure 3 It is a right side view of the assembly component and the heat dissipation component in the utility model;

[0021] Figure 4 It is a left side cross-sectional view of the assembly component and the heat dissipation component in the utility model;

[0022] Figure 5 It is a top view of the sectional view of the assembly component and the heat dissipation component in the utility model.

[0023] In the figure: 1. packaging shell; 11. packaging slot; 2. LED lamp bead; 3. LED chip; 4. heat dissipation component; 41. vertical ventilation hole; 42. back heat conduction plate; 421. mounting through hole; 422. fixing screw; 43. horizontal ventilation hole; 44. heat conduction plate; 45. connecting hole; 5. assembly component; 51. splicing plug; 52. splicing slot; 53. compression spring; 54. extrusion sheet; 55. positioning bead; 56. positioning slot; 57. connecting hole; 6. PCB circuit board; 61. first power copper wire; 62. second power copper wire. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 , the utility model provides a technical solution:

[0026] Embodiment 1:

[0027] An LED lamp bead module comprises a packaging shell 1, an LED lamp bead 2, an LED chip 3 and a PCB circuit board 6. The PCB circuit board 6 is installed inside the packaging shell 1, the front end surface of the PCB circuit board 6 is fixedly connected to the LED chip 3, the front end surface of the LED chip 3 is fixedly connected to the LED lamp bead 2, the PCB circuit board 6, the LED chip 3 and the LED lamp bead 2 constitute an LED lamp bead 2 module. Since the internal detailed structure and working principle of the LED lamp bead 2 module are relatively mature technologies in the prior art, they will not be described in detail here. A packaging groove 11 is opened on the front end surface of the packaging shell 1, and the packaging groove 11 facilitates the external epoxy resin to encapsulate the LED chip 3 and the LED lamp bead 2.

[0028] A heat dissipation component 4 is provided at the rear side of the packaging shell 1, and the heat dissipation component 4 is used to dissipate the heat inside the packaging shell 1. An assembling component 5 is provided on the side of the packaging shell 1, and the assembling component 5 facilitates the assembly and splicing of the packaging shell 1.

[0029] The assembling component 5 includes a splicing plug 51, a splicing slot 52, a compression spring 53, an extrusion sheet 54, a positioning bead 55 and a positioning groove 56. The left end face of the packaging shell 1 is provided with a splicing plug 51, and the splicing plug 51 is connected to the packaging shell 1 by welding. The right end face of the packaging shell 1 is provided with a splicing slot 52, and the splicing plug 51 matches the splicing slot 52. The matching splicing plugs 51 and splicing slots 52 facilitate the combined splicing of multiple packaging shells 1. Compression springs 53 are symmetrically arranged on the front and rear sides of the splicing slot 52, and the compression spring 53 can apply extrusion force to the extrusion sheet 54. The rear end face of the compression spring 53 is provided with an extrusion sheet 54, and the extrusion sheet 54 and the positioning bead 55 are an integrated structure. A positioning bead 55 is arranged in the middle position of the rear end face of the extrusion sheet 54, and the extrusion sheet 54 can support the positioning bead 55 so that the positioning bead 55 is clamped in the positioning groove 56 to assist in positioning the splicing plug 51.

[0030] The front and rear ends of the splicing plug 51 are symmetrically provided with positioning grooves 56, which match the positioning beads 55. The positioning grooves 56 facilitate the positioning beads 55 to be stuck inside the splicing plug 51. A connecting hole 57 is provided in the middle position inside the splicing plug 51. The connecting hole 57 facilitates the end of the second power copper wire 62 to be inserted into the splicing plug 51 and electrically connected to the first power copper wire 61. The power input end of the PCB circuit board 6 is fixedly connected to the first power copper wire 61, and the power output end of the PCB circuit board 6 is fixedly connected to the second power copper wire 62. The power-connecting copper wire 62, the first power-connecting copper wire 61 and the second power-connecting copper wire 62 facilitate the connection of multiple PCB circuit boards 6 in series. The annular sides of the first power-connecting copper wire 61 and the second power-connecting copper wire 62 are both provided with insulating glue. The insulating glue not only makes the annular sides of the first power-connecting copper wire 61 and the second power-connecting copper wire 62 more insulating, but also can assist in fixing the first power-connecting copper wire 61 and the second power-connecting copper wire 62 to prevent the first power-connecting copper wire 61 and the second power-connecting copper wire 62 from being easily loosened or deformed during use.

[0031] Embodiment 2:

[0032] On the basis of the first embodiment, in this embodiment, by installing a heat conductive sheet 44, most of the heat generated by the PCB circuit board 6 can be conducted to the back heat conductive plate 42, and then the back heat conductive plate 42 will dissipate the conducted heat to the outside. At the same time, a plurality of transverse ventilation holes 43 facilitate a portion of external air to enter the back heat conductive plate 42 to assist ventilation and cooling, and a plurality of vertical ventilation holes 41 and connecting holes 45 facilitate a portion of external air to enter the heat conductive sheet 44 to assist ventilation and cooling, thereby avoiding the easy generation of heat accumulation inside the packaging shell 1.

[0033] The heat dissipation component 4 includes a back heat conductive plate 42, transverse ventilation holes 43 and a heat conductive sheet 44. The back heat conductive plate 42 is installed on the rear end face of the packaging shell 1. The back heat conductive plate 42 is made of an aluminum substrate. The back heat conductive plate 42 made of an aluminum substrate can not only seal the rear end face of the sealing shell, but also has good heat dissipation performance. A plurality of transverse ventilation holes 43 are opened inside the back heat conductive plate 42. The plurality of transverse ventilation holes 43 not only facilitate external air to enter the back heat conductive plate 42 for ventilation and heat dissipation, but also reduce the dead weight of the back heat conductive plate 42. A heat conductive sheet 44 is attached to the rear end face of the PCB circuit board 6. The heat conductive sheet 44 is made of a silicone heat conductive sheet. The heat conductive sheet 44 made of a silicone heat conductive sheet not only has good thermal conductivity, but also has good insulation performance.

[0034] A plurality of connecting holes 45 are provided inside the heat conducting sheet 44, and the plurality of connecting holes 45 facilitate external air to enter the heat conducting sheet 44 for further ventilation and heat dissipation. The upper and lower end surfaces of the packaging shell 1 are symmetrically provided with a plurality of vertical ventilation holes 41, and the vertical ventilation holes 41 are connected with the connecting holes 45. The plurality of vertical ventilation holes 41 facilitate external air to circulate inside the plurality of connecting holes 45. The upper and lower sides of the back heat conducting plate 42 are symmetrically provided with mounting through holes 421, and the mounting through holes 421 facilitate the installer to install and fix the back heat conducting plate 42 with the help of external screws. The back heat conducting plate 42 is installed with fixing screws 422, and the fixing screws 422 facilitate the later installer to disassemble and assemble the back heat conducting plate 42.

[0035] Working principle: The installer first uses the splicing plug 51 and the splicing slot 52 to assemble multiple packaging shells 1 horizontally (refer to Figure 1 ), during this process, the extrusion force of the compression spring 53 will squeeze the positioning bead 55 through the extrusion sheet 54, so that the positioning bead 55 is stuck in the positioning groove 56, so as to assist in positioning the splicing plug 51 inserted in the splicing slot 52, and avoid the splicing plug 51 and the splicing slot 52 from being easily loosened. At the same time, the right end of the second power copper wire 62 will be inserted into the connecting hole 57 and electrically connected to the left end of the first power copper wire 61, so as to realize the series connection between multiple LED lamp beads 2 modules. When multiple packaging shells 1 are assembled horizontally, the installer only needs to use external screws and installation through holes 421 is used to install and fix the two outermost groups of back heat conducting plates 42; during the use of the packaging shell 1, the heat conducting sheet 44 will conduct most of the heat generated by the PCB circuit board 6 to the back heat conducting plate 42, so that the back heat conducting plate 42 can dissipate the conducted heat to the outside. At the same time, multiple horizontal ventilation holes 43 facilitate a part of the external air to enter the back heat conducting plate 42 to assist ventilation and cooling, while multiple vertical ventilation holes 41 and connecting holes 45 facilitate a part of the external air to enter the heat conducting sheet 44 to assist ventilation and cooling, thereby avoiding the easy generation of heat accumulation inside the packaging shell 1.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An LED lamp bead module, comprising a packaging shell (1), an LED lamp bead (2), an LED chip (3) and a PCB circuit board (6), characterized in that: A PCB circuit board (6) is installed inside the packaging shell (1), an LED chip (3) is fixedly connected to the front end surface of the PCB circuit board (6), and an LED lamp bead (2) is fixedly connected to the front end surface of the LED chip (3). A heat dissipation component (4) is arranged on the rear side of the interior of the packaging shell (1), and the heat dissipation component (4) is used to dissipate the heat inside the packaging shell (1). An assembly component (5) is arranged on the side of the packaging shell (1), and the assembly component (5) facilitates the assembly and splicing of the packaging shell (1).

2. The LED lamp bead module according to claim 1, characterized in that: The assembly component (5) comprises a splicing plug (51), a splicing slot (52), a compression spring (53), an extrusion sheet (54), a positioning bead (55) and a positioning groove (56); the left end face of the encapsulation shell (1) is provided with a splicing plug (51); the front and rear end faces of the splicing plug (51) are symmetrically provided with positioning grooves (56); the right end face of the encapsulation shell (1) is provided with a splicing slot (52); the front and rear sides of the splicing slot (52) are symmetrically provided with compression springs (53); the rear end face of the compression spring (53) is provided with an extrusion sheet (54); and the middle position of the rear end face of the extrusion sheet (54) is provided with a positioning bead (55).

3. The LED lamp bead module according to claim 1, characterized in that: The heat dissipation component (4) comprises a back heat conduction plate (42), transverse ventilation holes (43) and a heat conduction sheet (44); the back heat conduction plate (42) is installed on the rear end face of the packaging shell (1); a plurality of transverse ventilation holes (43) are provided inside the back heat conduction plate (42); and the heat conduction sheet (44) is attached to the rear end face of the PCB circuit board (6).

4. The LED lamp bead module according to claim 3, characterized in that: The heat conducting sheet (44) is provided with a plurality of connecting holes (45) therein, the heat conducting sheet (44) is made of a silicone heat conducting sheet (44), the upper and lower end surfaces of the packaging shell (1) are symmetrically provided with a plurality of vertical ventilation holes (41), and the vertical ventilation holes (41) are connected to the connecting holes (45).

5. The LED lamp bead module according to claim 3, characterized in that: The back heat conducting plate (42) has mounting through holes (421) symmetrically formed on the upper and lower sides thereof, and fixing screws (422) are installed inside the back heat conducting plate (42). The back heat conducting plate (42) is made of an aluminum substrate.

6. The LED lamp bead module according to claim 2, characterized in that: A connecting hole (57) is provided in the middle of the splicing plug (51), the splicing plug (51) matches with the splicing slot (52), and the positioning groove (56) matches with the positioning bead (55).

7. The LED lamp bead module according to claim 1, characterized in that: A first power-connecting copper wire (61) is fixedly connected to the power input end of the PCB circuit board (6), and a second power-connecting copper wire (62) is fixedly connected to the power output end of the PCB circuit board (6). A packaging groove (11) is provided on the front end surface of the packaging shell (1), and the annular side surfaces of the first power-connecting copper wire (61) and the second power-connecting copper wire (62) are both provided with insulating glue.

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