CN111897176A - Flash lamp module and manufacturing method thereof - Google Patents
Flash lamp module and manufacturing method thereof Download PDFInfo
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- CN111897176A CN111897176A CN202010797436.3A CN202010797436A CN111897176A CN 111897176 A CN111897176 A CN 111897176A CN 202010797436 A CN202010797436 A CN 202010797436A CN 111897176 A CN111897176 A CN 111897176A
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
- G03B15/03—Combinations of cameras with lighting apparatus; Flash units
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Abstract
The invention relates to the technical field of flash lamps and discloses a flash lamp module and a manufacturing method thereof. The flash lamp module comprises an FPC assembly and a flash lamp cover. The positioning hole is formed in the FPC assembly, the FPC assembly comprises an FPC board, the LED lamp beads are fixed on one side of the FPC board, and the LED lamp beads are electrically connected with the FPC board. The flash lampshade comprises a light-transmitting substrate and a positioning column, the light-transmitting substrate comprises a first boss, the first boss is arranged on one side of the light-transmitting substrate, an accommodating groove is vertically formed in the end face of the first boss, lines forming a Fresnel lens are arranged on the bottom surface of the accommodating groove, the FPC board is fixed on one side of the light-transmitting substrate, where the first boss is arranged, and the LED lamp beads are arranged in the accommodating groove; the positioning column sets up in the one side of printing opacity base plate towards the FPC board, and the positioning hole is worn to locate by the positioning column. The invention protects the lines forming the Fresnel lens, improves the assembly precision of the flash lamp module, improves the light supplement effect of the flash lamp module and ensures the portability of the mobile terminal.
Description
Technical Field
The invention relates to the technical field of flash lamps, in particular to a flash lamp module and a manufacturing method thereof.
Background
When people use the mobile terminal to shoot, people often stay at night or under the condition of poor ambient light, so that the flash lamp is widely applied to the mobile terminal as a common light reinforcing device. At present, the flash Light module is provided with printing opacity base plate and FPC board (Flexible Printed Circuit, Flexible Circuit board), electricity is connected with LED lamp pearl (Light Emitting Diode) on the FPC board, one side of printing opacity base plate is fixed on mobile terminal's casing, the holding tank that is used for holding LED lamp pearl is offered to the opposite side, the holding tank bottom surface is provided with the line that forms fresnel lens, but one side of printing opacity base plate orientation LED lamp pearl is the plane, when the height of required fresnel lens's line is higher, in order to avoid the line to expose the holding tank, need wholly thicken printing opacity base plate, mobile terminal's weight has been increased, and during flash Light module and the inside other structural connection of mobile terminal, mobile terminal's thickness has been bodied, mobile terminal's portable degree has been influenced.
Accordingly, there is a need for a flash module and a method for manufacturing the same to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to provide a flash lamp module and a manufacturing method thereof, which protect the lines forming a Fresnel lens, improve the assembly precision of the flash lamp module, improve the light supplementing effect of the flash lamp module, reduce the influence on the weight and thickness of a mobile terminal and ensure the portability of the mobile terminal.
In order to achieve the purpose, the invention adopts the following technical scheme:
a flash module, comprising:
the LED lamp comprises an FPC assembly, a positioning hole is formed in the FPC assembly, the FPC assembly comprises an FPC board, and an LED lamp bead is fixed on one side of the FPC board and electrically connected with the FPC board;
the flash lampshade comprises a light-transmitting substrate and a positioning column, the light-transmitting substrate comprises a first boss, the first boss is arranged on one side of the light-transmitting substrate, an accommodating groove is vertically formed in the end face of the first boss, lines for forming a Fresnel lens are arranged on the bottom face of the accommodating groove, the FPC board is fixed on one side of the light-transmitting substrate, which is provided with the first boss, and the LED lamp beads are arranged in the accommodating groove; the positioning column is arranged on one side, facing the FPC board, of the light-transmitting substrate, and the positioning column penetrates through the positioning hole.
Preferably, the light-transmitting substrate further includes a second boss, the second boss is disposed on the other side of the light-transmitting substrate, and the second boss can be fixed on an inner wall of the housing of the mobile terminal.
Preferably, a first adhesive layer is arranged on an end face of the second boss, and the first adhesive layer is used for adhering the flash lamp module to the inner wall of the shell of the mobile terminal.
Preferably, the second boss includes the bellying, the bellying sets up on the terminal surface of second boss, first layer of pasting is the annular, the bellying is placed in the central through-hole on first layer of pasting, the bellying with the holding tank is just to setting up.
Preferably, the FPC subassembly still includes first reinforcement piece, first reinforcement piece with LED lamp pearl is fixed the different both sides of FPC board just are just to setting up.
Preferably, a heat conduction silica gel sheet is arranged between the first reinforcing sheet and the FPC board.
Preferably, the FPC subassembly still includes two second stiffening sheets, the second stiffening sheet sets up the FPC board with between the printing opacity base plate, and two the second stiffening sheet sets up respectively the both ends of LED lamp pearl.
Preferably, a second adhesive layer is disposed between the FPC board and the second reinforcing sheet and between the FPC board and the first boss.
A method for manufacturing a flash lamp module is used for manufacturing the flash lamp module, and specifically comprises the following steps:
designing the texture of the Fresnel lens formed on the light-transmitting substrate;
integrally injection-molding the flash lampshade;
manufacturing the FPC board;
attaching a heat-conducting silica gel sheet and a second adhesive layer to two sides of the FPC board;
respectively attaching a first reinforcing sheet and a second reinforcing sheet to the heat-conducting silica gel sheet and the second adhesive layer;
fixing and electrically connecting the LED lamp beads on the FPC board to form the FPC assembly;
fixing the FPC assembly on the flash lamp cover;
and checking the light supplementing effect of the flash lamp module.
Preferably, after the FPC assembly is fixed to the flash cover, a first adhesive layer is attached to the light-transmitting substrate, and the first adhesive layer is used to adhere the flash module to an inner wall of the housing of the mobile terminal.
The invention has the beneficial effects that: set up first boss on the printing opacity base plate, set up the holding tank that is used for holding LED lamp pearl on the first boss, the line of having avoided forming fresnel lens exposes the holding tank, the line of forming fresnel lens has been protected, the light filling effect of flash light module has been improved, the whole thickening of printing opacity base plate has also been avoided, thereby the influence to mobile terminal weight has been alleviateed, and during flash light module and other inside structural connection of mobile terminal, can be connected with the printing opacity base plate outside first boss, the influence to mobile terminal's thickness has been reduced, mobile terminal's portable degree has been guaranteed. The locating column and the locating hole that set up mutually supporting can improve the assembly precision of flash light module, have further improved the light filling effect of flash light module.
Drawings
Fig. 1 is an exploded view of a flash module according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a flash module according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a light-transmitting substrate according to an embodiment of the invention;
FIG. 4 is a flowchart illustrating the main steps of a method for manufacturing a flash module according to an embodiment of the present invention;
fig. 5 is a flowchart illustrating the detailed steps of a method for manufacturing a flash module according to an embodiment of the invention.
In the figure:
1. an FPC board; 2. LED lamp beads; 3. a light-transmitting substrate; 31. a first boss; 311. accommodating grooves; 32. a second boss; 321. a boss portion; 4. a positioning column; 5. a first adhesive layer; 6. a first reinforcing sheet; 7. a thermally conductive silicone sheet; 8. a second reinforcing sheet; 9. and a second adhesive layer.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
The embodiment provides a flash lamp module, which specifically comprises an FPC assembly and a flash lamp cover as shown in FIGS. 1-3. The locating hole has been seted up on the FPC subassembly, and the FPC subassembly includes FPC board 1, and one side of FPC board 1 is fixed with LED lamp pearl 2, and LED lamp pearl 2 is connected with FPC board 1 electricity. The flash lampshade comprises a light-transmitting substrate 3 and a positioning column 4, the light-transmitting substrate 3 comprises a first boss 31, the first boss 31 is arranged on one side of the light-transmitting substrate 3, an accommodating groove 311 is vertically formed in the end face of the first boss 31, lines forming a Fresnel lens are arranged on the bottom surface of the accommodating groove 311, the FPC board 1 is fixed on one side of the light-transmitting substrate 3, where the first boss 31 is arranged, and the LED lamp beads 2 are arranged in the accommodating groove 311; the positioning column 4 is arranged on one side of the light-transmitting substrate 3 facing the FPC board 1, and the positioning column 4 penetrates through the positioning hole. Set up first boss 31 on the printing opacity base plate 3, offer the holding tank 311 that is used for holding LED lamp pearl 2 on the first boss 31, the line of having avoided forming fresnel lens exposes holding tank 311, the line of forming fresnel lens has been protected, the light filling effect of flash light module has been improved, 3 whole thickening of printing opacity base plate have also been avoided, thereby the influence to mobile terminal weight has been alleviateed, and during flash light module and other inside structural connection of mobile terminal, can be connected with the printing opacity base plate 3 outside first boss 31, the influence to mobile terminal's thickness has been reduced, mobile terminal's portable degree has been guaranteed. Set up reference column 4 and the locating hole of mutually supporting, can improve the assembly precision of flash light module, further improved the light filling effect of flash light module.
In this embodiment, when the FPC board 1 is attached to the light-transmitting substrate 3, the portion of the FPC board 1 attached to the light-transmitting substrate 3 outside the first boss 31 is provided with a copper exposing portion, that is, a metal elastic piece is arranged on the circuit board of the mobile terminal, and when the flash lamp module is mounted to the mobile terminal, the metal elastic piece and the copper exposing portion can be electrically connected, so that the FPC board 1 is conducted with the circuit board. The height of the joint of the metal elastic sheet and the FPC board 1 is lower than that of the first boss 31, so that the influence on the thickness of the mobile terminal can be reduced, and the portability of the mobile terminal is ensured.
Preferably, the FPC subassembly still includes first reinforcement piece 6, and first reinforcement piece 6 is fixed in FPC board 1 different both sides and just to setting up with LED lamp pearl 2, prevents to make FPC board 1 crooked because of LED lamp pearl 2's action of gravity, can guarantee LED lamp pearl 2 theoretical position in the flash light module all the time, has guaranteed the light filling effect of flash light module.
Specifically, the material of first reinforcement piece 6 is the steel, and steel reinforcement piece can have the radiating action, guarantees that the heat that LED lamp pearl 2 produced can in time spill, has guaranteed the light filling effect.
Preferably, be equipped with heat conduction silica gel piece 7 between first reinforcement 6 and the FPC board 1, heat conduction silica gel piece 7 has viscidity and can connects first reinforcement 6 and FPC board 1, has the heat conduction effect again, can play the effect of heat transfer between first reinforcement 6 and FPC board 1.
Preferably, the transparent substrate 3 further includes a second boss 32, the second boss 32 is disposed at the other side of the transparent substrate 3, and the second boss 32 can be fixed on the inner wall of the housing of the mobile terminal. In order to ensure that the flash lamp module can be stably fixed on the mobile terminal, a counter bore needs to be processed on the inner wall of the shell of the mobile terminal, and the second boss 32 is fixedly arranged in the counter bore, so that the second boss 32 is arranged to improve the stability of fixing the flash lamp module and the shell of the mobile terminal.
Preferably, the end face of the second boss 32 is provided with the first adhesive layer 5, and the first adhesive layer 5 is used for adhering the flash lamp module to the inner wall of the housing of the mobile terminal, so that the flash lamp module can be directly adhered to the inner wall of the housing of the mobile terminal, and the assembly convenience is improved.
Further, second boss 32 includes bellying 321, and bellying 321 sets up on the terminal surface of second boss 32, and first layer 5 of pasting is the annular, and in the bellying 321 was arranged in the first central through-hole of pasting layer 5, bellying 321 was just to setting up with holding tank 311, and the bellying 321 can pass the through-hole on the mobile terminal casing, and the through-hole cooperation with the through-hole has certain limiting displacement when guaranteeing the light filling effect of flash light module.
Preferably, the FPC subassembly still includes two second reinforcement pieces 8, second reinforcement piece 8 sets up between FPC board 1 and printing opacity base plate 3, and two second reinforcement pieces 8 set up respectively at the both ends of LED lamp pearl 2, when second reinforcement piece 8 can guarantee FPC board 1 and other structural connection of mobile terminal inside, improve FPC board 1's structural strength, avoid FPC board 1 to be destroyed, guarantee FPC board 1's functionality, the light filling effect of flash light module has been guaranteed. In this embodiment, the second reinforcing sheet 8 is fixed at the position of the FPC board 1 opposite to the exposed copper position, and the structural strength of the FPC board 1 can be improved when the FPC board 1 contacts with the metal elastic sheet. Be equipped with the glue film between second reinforcement piece 8 and the printing opacity base plate 3, guaranteed can be stably connected between FPC subassembly and the flash light cover.
Preferably, the second adhesive layer 9 is arranged between the FPC board 1 and the second reinforcing sheet 8 and between the FPC board 1 and the first boss 31, so that the FPC board 1 can be fixedly connected with the second reinforcing sheet 8 and the first boss 31, and the modularization degree of the structure is improved.
In this embodiment, the second adhesive layer 9 is a double-sided adhesive layer. And can set up in holding tank 311 in order to guarantee LED lamp pearl 2, the layer 9 is pasted to the second between FPC board 1 and the first boss 31 and is the annular, and the opening part of holding tank 311 communicates in annular central through-hole.
Specifically, the material of the second reinforcing patch 8 is plastic or steel. In this embodiment, when the second reinforcing sheet 8 is made of a plastic material, the weight of the flash lamp module can be reduced. In other embodiments, the second reinforcing sheet 8 may also be made of steel, which can further perform the function of heat dissipation, and the second adhesive layer 9 is made of heat conductive silicone.
In the embodiment, the first boss 31 is provided with the positioning post 4, and the light-transmitting substrate 3 outside the first boss 31 is also provided with the positioning post 4, so that the corresponding positions on the first reinforcing sheet 6, the heat-conducting silicone sheet 7, the second reinforcing sheet 8 and the second adhesive layer 9 are provided with the positioning holes.
The embodiment further provides a method for manufacturing the flash lamp module, which is used for manufacturing the flash lamp module, as shown in fig. 4, and the method specifically includes the following steps:
designing the texture of the Fresnel lens formed on the light-transmitting substrate 3;
integrally injection molding the flash lampshade;
manufacturing an FPC board 1;
the heat-conducting silica gel sheet 7 and the second adhesive layer 9 are adhered to two sides of the FPC board 1;
respectively sticking a first reinforcing sheet 6 and a second reinforcing sheet 8 on the heat-conducting silica gel sheet 7 and the second sticking layer 9;
the LED lamp beads 2 are fixed and electrically connected to the FPC board 1 to form an FPC assembly;
fixing the FPC assembly on a flash lamp cover;
and checking the light supplementing effect of the flash lamp module.
The flash lampshade is formed by adopting integral injection molding, so that the processing is convenient, the processing difficulty is reduced, and the batch production is convenient. Firstly, the heat-conducting silica gel sheet 7 and the second adhesive layer 9 are adhered on the FPC board 1, then the first reinforcing sheet 6 and the second reinforcing sheet 8 are respectively adhered on the heat-conducting silica gel sheet 7 and the second adhesive layer 9, and finally the LED lamp beads 2 are connected on the FPC board 1, thereby ensuring the modularization and integrity of the FPC component structure, facilitating the assembly of the flash lamp module, reducing the assembly time, reducing the assembly difficulty, ensuring the light-filling effect of the flash lamp module, and placing the installation sequence of the LED lamp beads 2 in the last step of installing the FPC component, being capable of avoiding the LED lamp beads 2 from being damaged by other assembly equipment or fixtures, in addition, because the heat-conducting silica gel sheet 7, the second adhesive layer 9, the first reinforcing sheet 6 and the second reinforcing sheet 8 are all in a sheet shape, the production difficulty of the required fixture when the heat-conducting silica gel sheet 7, the second adhesive layer 9, the first reinforcing sheet 6 and the second reinforcing sheet 8 are assembled is also reduced, and the assembly precision of the FPC component is ensured, guarantee the light filling effect of flash light module. And finally, the light supplementing effect of the flash lamp module is checked, and the light supplementing effect of the flash lamp module is further ensured.
In this embodiment, when FPC subassembly and flash light cover are fixed, adopt the pressfitting fixed, can strengthen the connection stability of flash light module, guarantee the light filling effect of flash light module.
Fig. 5 is a flowchart illustrating the detailed steps of the method for manufacturing the flash module. Preferably, after the FPC assembly is fixed to the flash cover, a first adhesive layer 5 is attached to the light-transmitting substrate 3, and the first adhesive layer 5 is used for adhering the flash module to the inner wall of the housing of the mobile terminal. In this embodiment, after the FPC assembly is fixed with the flash lamp cover, the first adhesive layer 5 is fixed on the light-transmitting substrate 3, and is specifically fixed on the first boss 31 of the light-transmitting substrate 3, so that the pressing operation when the FPC assembly is fixed with the flash lamp cover is facilitated, the contact area between the pressing member and the flash lamp module is increased, the connection stability of the flash lamp module is improved, and the light supplement effect of the flash lamp module is ensured.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A flash module, comprising:
the LED lamp comprises an FPC assembly, wherein a positioning hole is formed in the FPC assembly, the FPC assembly comprises an FPC board (1), an LED lamp bead (2) is fixed on one side of the FPC board (1), and the LED lamp bead (2) is electrically connected with the FPC board (1);
the flash lampshade comprises a light-transmitting substrate (3) and a positioning column (4), wherein the light-transmitting substrate (3) comprises a first boss (31), the first boss (31) is arranged on one side of the light-transmitting substrate (3), an accommodating groove (311) is vertically formed in the end face of the first boss (31), the bottom surface of the accommodating groove (311) is provided with lines for forming a Fresnel lens, the FPC board (1) is fixed on one side of the light-transmitting substrate (3) where the first boss (31) is arranged, and the LED lamp beads (2) are arranged in the accommodating groove (311); the positioning column (4) is arranged on one side, facing the FPC board (1), of the light-transmitting substrate (3), and the positioning column (4) penetrates through the positioning hole.
2. The flash module of claim 1 wherein the light-transmissive substrate (3) further comprises a second boss (32), the second boss (32) being disposed on the other side of the light-transmissive substrate (3), the second boss (32) being capable of being fixed to an inner wall of a housing of the mobile terminal.
3. The flash module according to claim 2, wherein a first adhesive layer (5) is disposed on an end surface of the second boss (32), and the first adhesive layer (5) is used for adhering the flash module to an inner wall of a housing of the mobile terminal.
4. The flash module of claim 3 wherein the second boss (32) includes a protrusion (321), the protrusion (321) is disposed on an end surface of the second boss (32), the first adhesive layer (5) is annular, the protrusion (321) is disposed in a central through hole of the first adhesive layer (5), and the protrusion (321) is disposed opposite to the receiving groove (311).
5. The flash module according to claim 1, wherein the FPC assembly further comprises a first reinforcing sheet (6), and the first reinforcing sheet (6) and the LED beads (2) are fixed on two different sides of the FPC board (1) and are arranged oppositely.
6. The flash module according to claim 5, wherein a heat conductive silicone sheet (7) is disposed between the first reinforcing sheet (6) and the FPC board (1).
7. The flash module according to claim 1, wherein the FPC assembly further comprises two second reinforcing sheets (8), the second reinforcing sheets (8) are disposed between the FPC board (1) and the light-transmitting substrate (3), and the two second reinforcing sheets (8) are respectively disposed at two ends of the LED lamp bead (2).
8. The flash module according to claim 7 wherein a second adhesive layer (9) is provided between the FPC board (1) and the second reinforcing sheet (8) and between the FPC board (1) and the first boss (31).
9. A method for manufacturing a flash lamp module according to any one of claims 1 to 8, comprising:
designing the texture of the Fresnel lens formed on the light-transmitting substrate (3);
integrally injection-molding the flash lampshade;
manufacturing the FPC board (1);
attaching a heat-conducting silica gel sheet (7) and a second adhesive layer (9) to two sides of the FPC board (1);
respectively attaching a first reinforcing sheet (6) and a second reinforcing sheet (8) to the heat-conducting silica gel sheet (7) and the second adhesive layer (9);
the LED lamp beads (2) are fixed and electrically connected to the FPC board (1) to form the FPC assembly;
fixing the FPC assembly on the flash lamp cover;
and checking the light supplementing effect of the flash lamp module.
10. The method for manufacturing the flash module according to claim 9, further comprising attaching a first adhesive layer (5) on the light-transmitting substrate (3) after the FPC assembly is fixed on the flash cover, wherein the first adhesive layer (5) is used for adhering the flash module to an inner wall of a housing of the mobile terminal.
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| CN202010797436.3A CN111897176A (en) | 2020-08-10 | 2020-08-10 | Flash lamp module and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010797436.3A CN111897176A (en) | 2020-08-10 | 2020-08-10 | Flash lamp module and manufacturing method thereof |
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| CN205846286U (en) * | 2016-06-17 | 2016-12-28 | 上海与德科技有限公司 | Electronic equipment |
| CN206235797U (en) * | 2016-10-06 | 2017-06-09 | 南昌与德通讯技术有限公司 | Flash lamp component and terminal device |
| CN206773372U (en) * | 2017-04-11 | 2017-12-19 | 广东谷麦光电科技股份有限公司 | A kind of LED flash module |
| CN107567178A (en) * | 2017-07-24 | 2018-01-09 | 深圳市深印柔性电路有限公司 | Reinforced type FPC harden structures based on pasted sheet type thermistor |
| CN207233892U (en) * | 2017-07-25 | 2018-04-13 | 深圳市沃特玛电池有限公司 | Collection plate in a kind of battery case |
| CN207216238U (en) * | 2017-09-01 | 2018-04-10 | 深圳市明智塑胶制品有限公司 | Cylindrical flash lamp lens |
| CN109327582A (en) * | 2018-11-28 | 2019-02-12 | Oppo（重庆）智能科技有限公司 | Shell and preparation method thereof, electronic equipment |
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