CN210467125U - Novel LED module that moulds plastics and die-casting metal combines - Google Patents

Abstract

The utility model belongs to the technical field of the LED display screen, especially, relate to a novel mould plastics and die-casting metal combines LED module. This LED module includes PCBA lamp plate, structure, and the structure includes preceding shell and backshell, and preceding shell superposes with the backshell in proper order, and the material of preceding shell is the plastic, and the material of backshell is aluminum alloy or magnalium alloy, is equipped with at least one preceding shell delivery outlet on the preceding shell, and the PCBA lamp plate sets up the front side of shell in the front, is equipped with the backshell delivery outlet that corresponds with preceding shell delivery outlet on the backshell. The LED module solves the problems of stress deformation, thermal expansion deformation and poor heat dissipation capability of the LED module in the prior art.

Description

Novel LED module that moulds plastics and die-casting metal combines

Technical Field

The utility model belongs to the technical field of the LED display screen, especially, relate to a novel mould plastics and die-casting metal combines LED module.

Background

LED display screen module among the prior art is by the drain pan, the PCBA lamp plate, module sealing washer etc. are constituteed, the essential element generally is single plastic drain pan or single aluminium system drain pan, the intensity that the plastic product has decided the plastic drain pan is not strong, injection moulding also can lead to the product to produce internal stress and deformation, current plastic drain pan not only has the atress to warp and the thermal expansion scheduling problem, and the plastic drain pan still has the problem of plastic fracture under the big or microthermal condition of difference in temperature round clock, there is the problem that the soft module atress of module warp again under the condition of high temperature. And the phenomenon of electric leakage takes place when aluminium system drain pan can be connected with the PCBA lamp plate because the problem of material is uninsulated to influence LED module quality.

Disclosure of Invention

Technical problem to be solved

The utility model provides a novel mould plastics and die-casting LED module that the metal combines has solved and has had the poor problem of LED module atress deformation, thermal expansion deformation and heat dissipation ability among the prior art.

(II) technical scheme

In order to achieve the above object, the utility model discloses a main technical scheme include:

the utility model provides a novel LED module of moulding plastics and die-casting metal combination, includes PCBA lamp plate, structure, and the structure includes preceding shell and backshell, and preceding shell superposes with the backshell in proper order, and the material of preceding shell is the plastic, and the material of backshell is aluminum alloy or magnalium, is equipped with at least one preceding shell delivery outlet on the preceding shell, and the PCBA lamp plate sets up the front side of shell in the front, is equipped with the backshell delivery outlet that corresponds with preceding shell delivery outlet on the backshell.

According to the utility model discloses, the backshell is equipped with the raised edge, and the edge of preceding shell is equipped with step all around, and the step all around of preceding shell is embedded into in the raised edge of backshell.

According to the utility model discloses, the step all around of preceding shell is provided with the structure sealing washer with the junction in the protruding edge of backshell, and the backshell correspondence is provided with the sealing washer groove.

According to the utility model discloses, preceding shell and backshell all are provided with vertical strengthening rib and horizontal strengthening rib.

According to the utility model discloses, preceding shell adopts injection moulding.

According to the utility model discloses, the backshell adopts aluminium die-casting processing or extrusion process.

According to the utility model discloses, be equipped with the PCBA lamp plate screw post that corresponds with the PCBA lamp plate on the preceding shell, PCBA lamp plate screw post be with the gluey post of a preceding injection moulding of shell processing.

According to the utility model discloses, the junction of preceding shell delivery outlet and backshell delivery outlet still is equipped with the delivery outlet sealing washer.

According to the utility model discloses, preceding shell still includes the module reference column.

According to the utility model discloses, the junction of backshell and box still is equipped with the box sealing washer.

(III) advantageous effects

The utility model has the advantages that:

the utility model provides a pair of novel mould plastics and die-casting metal combines's LED module uses the preceding shell of plastic to cooperate with the backshell of aluminum alloy or magnalium alloy material, reduces the atress deformation and the thermal expansion deformation of LED module, and the step all around of preceding shell prevents that LED module from ftractureing in being embedded into the protruding edge of backshell. The leakproofness of shell and backshell before the structure sealing washer has strengthened to improve the waterproof performance and the waterproof grade of LED module, preceding shell is provided with many vertical strengthening ribs and many horizontal strengthening ribs, can strengthen the intensity of preceding shell, can improve the degree of cooperation with the backshell, the shell setting in the front and preceding shell integrated into one piece's erection column practice thrift the manufacturing cost of LED module.

Drawings

Fig. 1 is a schematic diagram showing a forward overall structure split of a novel injection molding and die casting metal combined LED module according to the present invention;

fig. 2 is a schematic diagram illustrating a reverse overall structure split of a novel injection-molded and die-cast metal-combined LED module according to the present invention;

fig. 3 is a schematic view of a reverse overall structural combination of a novel injection-molded and die-cast metal-combined LED module according to the present invention;

fig. 4 is a schematic view of a forward overall structural combination of a novel injection-molded and die-cast metal-combined LED module according to the present invention;

fig. 5 is a cross-sectional view taken along a-a of fig. 4.

[ description of reference ]

1: a front housing; 11: a front housing output port; 12: a vertical reinforcing rib; 13: transverse reinforcing ribs;

14: PCBA lamp panel screw post; 15: a mask screw post; 16: steps on the periphery;

2: a rear housing; 21: a rear housing outlet; 22: a seal ring groove; 23: an outlet seal ring groove;

24: a box body sealing ring groove; 25: a module positioning column; 26: a butterfly lock; 27: a countersunk hole;

3: a structural member sealing ring; 4: an output port sealing ring; 5: and a box body sealing ring.

Detailed Description

For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.

Referring to fig. 1 to 5, this embodiment provides a novel LED module of moulding plastics and die-casting metal combination, including PCBA lamp plate, structure, the structure includes preceding shell 1 and backshell 2, and preceding shell 1 superposes with backshell 2 in proper order, and the material of preceding shell 1 is the plastic, and the material of backshell 2 is aluminum alloy or magnalium, is equipped with at least one preceding shell delivery outlet 11 on the preceding shell 1, and the PCBA lamp plate sets up the front side of preceding shell 1, is equipped with the backshell delivery outlet 21 that corresponds with preceding shell delivery outlet 11 on the backshell 2. In practical application, the signal of LED module can be exported from the epitheca delivery outlet 11, the preceding shell 1 of plastic cooperatees with backshell 2 of aluminium system, the atress that can reduce the LED module warp and the thermal expansion warp, backshell 2 adopts the almag material, can also effectively carry out heat-conduction, dispel the heat through the heat dissipation stripe at the back, good heat dispersion has, preceding shell 1 utilizes the plastic material to make the screw more reliable through the auto-lock power, effectively avoid vibrations to lead to the obscission.

Furthermore, the rear shell 2 of the structural member is provided with a raised edge, the edge of the front shell 1 is provided with surrounding steps 16, and the surrounding steps 16 of the front shell 1 are embedded into the raised edge of the rear shell 2. Because the edge of preceding shell 1 has been embedded into backshell 2 in, the main part of atress is the backshell 2 of aluminium system, can prevent LED module fracture to only need change preceding shell 1 in the use and adapt to the module of different dot intervals, backshell 2 is general, has practiced thrift the manufacturing cost and the maintenance cost of LED module. Specifically, the novel LED module that moulds plastics and combine with die-casting metal that this embodiment provided still includes structure sealing washer 3, and structure sealing washer 3 is used for preceding shell 1 and backshell 2 sealed, and backshell 2 corresponds and is provided with seal ring groove 22. When the temperature is higher, the thermal expansion coefficient of plastic and aluminum alloy is different, easily produces the gap between preceding shell 1 and backshell 2, and the leakproofness of preceding shell 1 and backshell 2 can be strengthened to the structural sealing washer to improve the waterproof performance and the waterproof grade of LED module.

Specifically, preceding shell 1 is provided with many vertical strengthening ribs 12 and many horizontal strengthening ribs 13, can strengthen preceding shell 1's intensity, can improve the degree of cooperation with backshell 2.

Specifically, preceding shell 1 adopts injection moulding, is equipped with the PCBA lamp plate screw post 14 that corresponds with the PCBA lamp plate on the preceding shell 1, and the lamp plate screw post does not need secondary operation for the gluey post with 1 injection moulding of preceding shell, saves the cost and there is not electric leakage phenomenon in lamp plate screw post and the contact of PCBA lamp plate. In practical application, when the LED module was applied to when outdoor, still be equipped with the face guard in the front side of PCBA lamp plate, be connected with the face guard through face guard screw post 15, face guard screw post 15 is located around shell 1 before to face guard screw post 15 is higher than the lamp plate screw post, the installation of the face guard of being convenient for. The lamp plate screw post and the face guard screw post are the erection column in this embodiment. In practical application, the front shell 1 further comprises a module positioning column 25, so that the whole LED module can be conveniently positioned.

Wherein, the backshell still is equipped with butterfly lock 26 structure, is equipped with the magnet of magnetism in the box counter sink 27 simultaneously, can realize the module and maintain around, simultaneously more reliably with the fixed of other boxes or structures.

Further, the rear shell 2 is made of aluminum through die casting, the die casting is simple in structure, and the rear shell 2 can be made of extrusion. In practical application, the aluminum rear shell 2 is not provided with a mounting column, and only a threaded hole matched with the front shell 1 is formed, so that the cost can be saved.

Further, the novel LED module of moulding plastics and die-casting metal combination that this embodiment provided still includes delivery outlet sealing washer 4 and box sealing washer 5, and backshell 2 corresponds and is provided with delivery outlet sealing washer groove 23 and box sealing washer groove 24, and delivery outlet sealing washer 4 is used for preceding shell delivery outlet 11 and backshell delivery outlet 21 sealed, and box sealing washer 5 is used for the sealed between backshell delivery outlet 21 and box, can further improve the waterproof performance of LED module.

The utility model provides a pair of novel mould plastics and LED module that die-casting metal combines, the stress deformation and the thermal expansion deformation that use preceding shell 1 of plastic and rear shell 2 of aluminum alloy or magnalium material to cooperate and reduce the LED module, rear shell 2 of aluminum alloy or magnalium material effectively carries out heat-conduction, dispel the heat through the heat dissipation stripe at the back, good heat dispersion has, preceding shell 1 utilizes the plastic material to make the screw more reliable through the auto-lock power, effectively avoid vibrations to lead to the obscission. The leakproofness of shell 1 and backshell 2 before structure sealing washer 3 has strengthened, thereby improve the waterproof performance and the waterproof grade of LED module, preceding shell 1 and backshell 2 all are provided with many vertical strengthening rib 12 and many horizontal strengthening rib 13, the intensity of shell 1 before can strengthening, can improve the degree of cooperation with backshell 2, shell 1 sets up the erection column with preceding shell 1 integrated into one piece in the front, only need change preceding shell 1 in the use and adapt to the module of difference interval, backshell 2 is general, practice thrift the manufacturing cost and the maintenance cost of LED module. Preceding shell 1 possesses through-hole keying structure with backshell 2, is equipped with the magnetism simultaneously and inhales the piece, realizes the module maintenance around, simultaneously more reliably with the fixed of other boxes or structures.

It should be understood that the above description of the embodiments of the present invention is only for illustrating the technical lines and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention accordingly, but the present invention is not limited to the above specific embodiments. All changes and modifications that come within the scope of the claims are to be embraced within their scope.

Claims (10)

1. A novel LED module combining injection molding and die casting metal comprises a PCBA lamp panel and a structural member, and is characterized in that,

the structural part comprises a front shell (1) and a rear shell (2);

the front shell (1) and the rear shell (2) are sequentially overlapped, the front shell (1) is made of plastic, and the rear shell (2) is made of aluminum alloy or magnesium aluminum alloy;

preceding shell delivery outlet (11) before being equipped with at least one on preceding shell (1), the PCBA lamp plate sets up the front side of preceding shell (1), be equipped with on backshell (2) with backshell delivery outlet (21) that preceding shell delivery outlet (11) correspond.

2. A novel injection molded and die cast metal bonded LED module according to claim 1, characterized in that the rear shell (2) is provided with a raised edge, the edge of the front shell (1) is provided with a peripheral step (16), and the peripheral step (16) of the front shell (1) is embedded into the raised edge of the rear shell (2).

3. A novel injection-molded and die-cast metal-combined LED module according to claim 2, characterized in that a structural member sealing ring (3) is arranged at the joint of the peripheral steps (16) of the front shell (1) and the raised edge of the rear shell (2), and the rear shell (2) is correspondingly provided with a sealing ring groove (22).

4. A novel injection molded and die cast metal bonded LED module according to claim 3, characterized in that the front shell (1) and the rear shell (2) are provided with vertical (12) and horizontal (13) stiffeners.

5. A novel injection molded and die cast metal combined LED module according to claim 4, characterized in that the front shell (1) is injection molded.

6. A novel injection-molded and die-cast metal-combined LED module according to claim 5, wherein the rear housing (2) is die-cast or extruded.

7. A novel LED module with combined injection molding and die-casting metal as claimed in claim 6, wherein the front shell (1) is provided with PCBA lamp panel studs (14) corresponding to the PCBA lamp panel, and the PCBA lamp panel studs (14) are rubber studs formed by injection molding with the front shell (1).

8. A novel LED module with metal combination of injection molding and die casting as claimed in claim 7, wherein the junction of the front shell output port (11) and the rear shell output port (21) is further provided with an output port sealing ring (4).

9. A novel injection molded and die cast metal bonded LED module according to claim 8, wherein the front housing (1) further comprises module positioning posts (25).

10. A novel injection-molded and die-cast metal-combined LED module according to claim 9, wherein a case body sealing ring (5) is further arranged at the joint of the rear case (2) and the case body.

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