CN117724267A - LED lamp panel backlight module and mounting method - Google Patents
LED lamp panel backlight module and mounting method Download PDFInfo
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- CN117724267A CN117724267A CN202410172848.6A CN202410172848A CN117724267A CN 117724267 A CN117724267 A CN 117724267A CN 202410172848 A CN202410172848 A CN 202410172848A CN 117724267 A CN117724267 A CN 117724267A
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000003466 welding Methods 0.000 claims abstract description 69
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 30
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000000758 substrate Substances 0.000 claims abstract description 28
- 238000005476 soldering Methods 0.000 claims abstract description 17
- 238000003780 insertion Methods 0.000 claims abstract description 13
- 230000037431 insertion Effects 0.000 claims abstract description 13
- 239000011324 bead Substances 0.000 claims abstract description 11
- 239000011159 matrix material Substances 0.000 claims abstract description 9
- 238000006073 displacement reaction Methods 0.000 claims description 29
- 229910000679 solder Inorganic materials 0.000 claims description 15
- 238000010030 laminating Methods 0.000 claims description 13
- 239000003292 glue Substances 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract description 4
- 238000011900 installation process Methods 0.000 abstract 1
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 78
- 238000004804 winding Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 10
- 238000005538 encapsulation Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 210000001503 joint Anatomy 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The application provides an LED lamp panel backlight module and an installation method. The invention relates to an LED lamp panel backlight module, which comprises: the LED lamp bead matrix is arranged on the aluminum substrate layer; the lamp panel connector comprises an insulating body, an anode contact piece, a cathode socket, a soldering lug, a rear cover and a lock catch; the lamp panel connector is arranged in the window of the single-sided PCB, the contact welding points of the positive electrode contact piece and the aluminum substrate layer are fixed, the welding tabs are fixed with welding tab welding points of the aluminum substrate, and the lock catch and the rear cover extend out from one side of the backboard layer of the single-sided PCB; the FFC guide edge is used for guiding the FFC flexible flat cable to be inserted into the negative electrode socket. The device perfectly solves the defect of the existing LED lamp panel backlight module packaging scheme, and avoids the problems that the FFC flexible flat cable which is difficult to solve in the installation process of the lamp panel connector is difficult to operate and easy to occur loose in insertion.
Description
Technical Field
The invention relates to an LED lamp panel backlight module and an installation method thereof, and belongs to the technical field of LED optical elements.
Background
The LED backlight module is a key component of a liquid crystal display panel, and an illumination device with uniform plane is formed by arranging an LED point light source. Because the LED point light sources or the LED beads arranged on the LED lamp panels are densely arranged, an RF4 double-panel is generally adopted, and the horizontal connector is arranged on the back surface of the RF4 double-panel, so that more LED bead arrangement space is reserved on the front surface of the RF4 double-panel. Because RF4 double-sided board is higher than single-sided board cost, simultaneously at RF4 back encapsulation horizontal connector easily leads to lamp plate deformation scheduling problem, and the positive negative pole of special horizontal connector easily contacts foreign matter such as dust or metal broken bits and leads to the short circuit problem, consequently, the double-sided board structure of current LED lamp plate backlight unit has all formed great restriction to the cost control and the structural optimization of LED backlight unit, need to carry out the optimization adjustment to current LED lamp plate backlight unit and technological process.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide an LED lamp panel backlight module and an installation method.
According to an embodiment of the present invention, there is provided a first aspect of: an LED lamp panel backlight module, comprising:
the LED lamp bead matrix is arranged on the aluminum substrate layer; the lamp panel connector comprises an insulating body, an anode contact piece, a cathode socket, a soldering lug, a rear cover and a lock catch; the lamp panel connector is arranged in the window of the single-sided PCB, the positive electrode contact piece is fixed with a contact welding point of the aluminum substrate layer, the welding lug is fixed with a welding lug welding point of the aluminum substrate, and the lock catch and the rear cover extend out from one side of the backboard layer of the single-sided PCB; the FFC guide edge is used for guiding the FFC flexible flat cable to be inserted into the negative electrode socket.
The FFC flexible flat cable refers to (Flexible Flat Cable) flexible flat cable.
Further, the FFC guide side includes: the flexible flat cable comprises a bottom plate and two side guide plates, wherein the bottom plate and the two side guide plates form a guide space for limiting the insertion track of the FFC flexible flat cable; the base plate has a smooth surface or a stepped surface for adjusting the insertion height of the FFC flexible flat cable.
Further, the FFC guide side includes: bottom plate, two side deflector and roof, the side deflector includes end connecting portion, fulcrum portion and top connecting portion, end connecting portion, fulcrum portion and top connecting portion form the zigzag, the end connecting portion and the bottom plate fixed connection of side deflector, the top connecting portion and the roof fixed connection of side deflector, bottom plate, two side deflector and roof form the guide space that prescribes a limit to FFC flexible flat cable insertion track.
Further, a limiting part capable of rotating around a limiting point is formed between at least one side guide plate of the FFC guide edge and the top plate, the FFC guide edge is inwards driven to be attached to the limiting point at most when the FFC flexible flat cable is inserted into the negative electrode socket, when the limiting part is attached to the limiting point, the top plate of the FFC guide edge stretches into the lower portion of the locking piece of the lock catch, when the upper plate is locked, the FFC flexible flat cable is tightly pressed with the negative electrode contact, meanwhile, the top plate is pressed downwards, rotates around the limiting point under the pressing action of the locking piece, and enables the bottom plate to tilt up from the surface of the back plate layer.
Further, the bottom plate of FFC leading edge includes bilayer structure: the laminating layer and displacement layer, the laminating layer is used for laminating at backplate layer surface, but displacement between displacement layer and the laminating layer drive displacement layer when FFC soft flat cable inserts and remove in to the negative pole socket.
According to the embodiment of the invention, the LED lamp panel backlight module in the first scheme provided by the invention is utilized, and the second scheme is provided as follows:
the method for mounting the LED lamp panel backlight module comprises the following steps:
obtaining a single-sided PCB, wherein the single-sided PCB comprises an aluminum substrate layer, a heat conducting glue layer and a back plate layer, a window for installing a lamp panel connector is arranged on the single-sided PCB, and an LED lamp bead matrix is arranged on the aluminum substrate layer; obtaining a lamp panel connector, wherein the lamp panel connector comprises an insulating body, an anode contact piece, a cathode socket, a soldering lug, a rear cover and a lock catch; printing solder paste on at least contact welding points and welding sheet welding points of an aluminum substrate layer of the single-sided PCB; the lamp panel connector is arranged in a window of the single-sided PCB, the positive electrode contact piece is in contact with solder paste on a contact welding point, the welding lug is in contact with the solder paste on the welding lug welding point, and the lock catch and the rear cover extend out from one side of a backboard layer of the single-sided PCB; inserting the FFC guide edge attached back plate layer into the negative electrode socket and pulling down the lamp panel connector from one side of the back plate layer into place; the positive electrode contact piece is fixedly connected with a contact welding spot in wave soldering, and the welding lug is fixedly connected with a welding lug welding spot; the FFC flexible flat cable is inserted into the negative electrode socket along the guide space of the FFC guide edge and is contacted with the negative electrode contact, the lock catch is switched from the opening and closing state to the upper plate state, and the flat cable contact of the FFC flexible flat cable and the negative electrode contact are tightly pressed by the locking piece of the lock catch.
Further, the method further comprises the following steps: and removing the FFC guide edge.
Further, the step of removing the FFC guide edge includes: and tilting the bottom plate of the FFC guide edge and separating from the back plate layer, and removing the FFC guide edge.
Further, the step of removing the FFC guide edge includes: when inserting the flexible flat cable of FFC to the negative pole socket along the direction space of FFC leading edge, the flexible flat cable of FFC drives the spacing portion to the FFC leading edge in to the negative pole socket to spacing point, and flexible flat cable of FFC contacts with the negative pole contact, the hasp is from switching over the state and is switched to upper plate state, the retaining member of hasp is inseparable with the flat cable contact and the negative pole contact pressfitting of the flexible flat cable of FFC, and the retaining member of hasp pushes down the roof of FFC leading edge, the roof is from backplate layer surface perk under the support of spacing point, dismantle the flexible flat cable of FFC leading edge along FFC from the bottom plate of perk, wherein, the FFC leading edge includes: bottom plate, two side deflector and roof, the side deflector includes end connecting portion, fulcrum portion and top connecting portion, end connecting portion, fulcrum portion and top connecting portion form the zigzag, the end connecting portion and the bottom plate fixed connection of side deflector, the top connecting portion and the roof fixed connection of side deflector, form between at least one side deflector of FFC deflector and the roof and can wind spacing point pivoted spacing portion.
Further, the step of removing the FFC guide edge includes: the flexible flat cable of the FFC is inserted into the negative electrode socket along the guide space of the FFC guide edge, the flexible flat cable of the FFC drives the displacement layer of the FFC guide edge into the negative electrode socket until the flexible flat cable of the FFC contacts with the negative electrode contact, the lock catch is switched to an upper plate state from an opening-closing state, the locking piece of the lock catch presses the flat cable contact of the flexible flat cable of the FFC tightly with the negative electrode contact, the attaching layer of the FFC guide edge is tilted, and the attaching layer of the FFC guide edge is pulled out outwards to drive the attaching layer to move and detach the FFC guide edge.
A computer device comprising a memory and a processor, the memory storing a computer program which, when executed by the processor, causes the processor to perform the steps of:
obtaining a single-sided PCB, wherein the single-sided PCB comprises an aluminum substrate layer, a heat conducting glue layer and a back plate layer, a window for installing a lamp panel connector is arranged on the single-sided PCB, and an LED lamp bead matrix is arranged on the aluminum substrate layer; obtaining a lamp panel connector, wherein the lamp panel connector comprises an insulating body, an anode contact piece, a cathode socket, a soldering lug, a rear cover and a lock catch; printing solder paste on at least contact welding points and welding sheet welding points of an aluminum substrate layer of the single-sided PCB; the lamp panel connector is arranged in a window of the single-sided PCB, the positive electrode contact piece is in contact with solder paste on a contact welding point, the welding lug is in contact with the solder paste on the welding lug welding point, and the lock catch and the rear cover extend out from one side of a backboard layer of the single-sided PCB; inserting the FFC guide edge attached back plate layer into the negative electrode socket and pulling down the lamp panel connector from one side of the back plate layer into place; the positive electrode contact piece is fixedly connected with a contact welding spot in wave soldering, and the welding lug is fixedly connected with a welding lug welding spot; the FFC flexible flat cable is inserted into the negative electrode socket along the guide space of the FFC guide edge and is contacted with the negative electrode contact, the lock catch is switched from the opening and closing state to the upper plate state, and the flat cable contact of the FFC flexible flat cable and the negative electrode contact are tightly pressed by the locking piece of the lock catch.
A computer readable storage medium storing a computer program which, when executed by a processor, causes the processor to perform the steps of:
obtaining a single-sided PCB, wherein the single-sided PCB comprises an aluminum substrate layer, a heat conducting glue layer and a back plate layer, a window for installing a lamp panel connector is arranged on the single-sided PCB, and an LED lamp bead matrix is arranged on the aluminum substrate layer; obtaining a lamp panel connector, wherein the lamp panel connector comprises an insulating body, an anode contact piece, a cathode socket, a soldering lug, a rear cover and a lock catch; printing solder paste on at least contact welding points and welding sheet welding points of an aluminum substrate layer of the single-sided PCB; the lamp panel connector is arranged in a window of the single-sided PCB, the positive electrode contact piece is in contact with solder paste on a contact welding point, the welding lug is in contact with the solder paste on the welding lug welding point, and the lock catch and the rear cover extend out from one side of a backboard layer of the single-sided PCB; inserting the FFC guide edge attached back plate layer into the negative electrode socket and pulling down the lamp panel connector from one side of the back plate layer into place; the positive electrode contact piece is fixedly connected with a contact welding spot in wave soldering, and the welding lug is fixedly connected with a welding lug welding spot; the FFC flexible flat cable is inserted into the negative electrode socket along the guide space of the FFC guide edge and is contacted with the negative electrode contact, the lock catch is switched from the opening and closing state to the upper plate state, and the flat cable contact of the FFC flexible flat cable and the negative electrode contact are tightly pressed by the locking piece of the lock catch.
Compared with the prior art, the beneficial effect of technical scheme exclusive right that this application provided: this scheme has used single face PCB board to reduce product cost, in order to reduce the whole volume of product and avoid the various problems that the horizontal connector of back-mounting leads to, this scheme has used single face PCB board that has the windowing, install lamp plate connector in the windowing of single face PCB board, set up the positive pole contact piece in the front of aluminium base sheet layer, the negative pole socket that will connect usefulness sets up the back at the back of back sheet layer, thereby the defect of current LED lamp plate backlight module encapsulation scheme has been perfectly solved, further, the soft winding displacement of FFC that has avoided being difficult to solve in the lamp plate connector installation inserts difficult operation, the problem that the grafting is not hard up easily appears, still use FFC leading edge to promote the connection operability and the connection stability of product.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Wherein:
FIG. 1 is a schematic diagram of an overall structure of an LED lamp panel backlight module according to an embodiment;
FIG. 2 is a schematic diagram of a lamp panel connector of an LED lamp panel backlight module according to an embodiment;
FIG. 3 is a schematic diagram of an FFC flexible flat cable of an LED lamp panel backlight module in an embodiment;
FIG. 4 is a schematic diagram illustrating a structure of an FFC guide edge of an LED lamp panel backlight module according to one embodiment;
FIG. 5 is a schematic diagram of a second FFC guide edge of an LED lamp panel backlight module according to one embodiment;
fig. 6 is a schematic diagram illustrating an open/close state of a lamp panel connector of an LED lamp panel backlight module according to an embodiment;
FIG. 7 is a schematic diagram of an upper plate of a light panel connector of an LED light panel backlight module according to an embodiment;
FIG. 8 is a schematic diagram illustrating connection of FFC flexible flat cables in an open/close state of a lamp panel connector of an LED lamp panel backlight module according to an embodiment;
FIG. 9 is a schematic diagram illustrating the connection initiation of FFC flexible flat cables in a flat panel state of a lamp panel connector of an LED lamp panel backlight module according to one embodiment;
FIG. 10 is a schematic diagram showing a connection termination of FFC flexible flat cables in a flat panel state of a lamp panel connector of an LED lamp panel backlight module according to one embodiment;
fig. 11 is a flowchart of a method for installing a backlight module of an LED lamp panel according to an embodiment.
Reference numerals:
11-an aluminum substrate layer; 12-a heat conducting adhesive layer; 13-a backing layer; 14-contact pads; 21-an insulating body; 22-positive electrode contact; 23-a negative electrode socket; 231-negative contact; 232-restriction site; 24-soldering lug; 25-a rear cover; 26-locking; 261-locking member; 30-FFC guide edges; 31-a bottom plate; 311-oblique sliding surface; 312-abutting surface; 32-side guide plates; 321-bottom connection; 322-fulcrum portion; 323-top connection; 33-top plate; 40-FFC flexible flat cable; 41-flat cable connector.
Detailed Description
In order to better understand the technical solutions in the present application, the following description will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
Example 1
The technical problem that this embodiment solved is that LED pointolite or LED lamp pearl that arranges on the LED lamp plate owing to arrange densely, can adopt RF4 double-sided board generally, installs the horizontal connector in the back of RF4 double-sided board to leave more LED lamp pearl arrangement space in the front of RF4 double-sided board. Because RF4 double-sided board is higher than single-sided board cost, simultaneously at RF4 back encapsulation horizontal connector easily leads to lamp plate deformation scheduling problem, and the positive negative pole of special horizontal connector easily contacts foreign matter such as dust or metal broken bits and leads to the short circuit problem, therefore, the cost control and the structural optimization of current LED lamp plate backlight unit have all formed great restriction to LED backlight unit's double-sided board structure.
In order to solve the above technical problem, this embodiment provides an LED lamp panel backlight module, as shown in fig. 1, including: the LED lamp bead matrix is arranged on the aluminum substrate layer 11; as shown in fig. 2, the lamp panel connector comprises an insulating body 21, a positive contact 22, a negative socket 23, a soldering lug 24, a rear cover 25 and a lock catch 26; the lamp panel connector is arranged in the window of the single-sided PCB, the positive electrode contact piece 22 is fixed with the contact welding point 14 of the aluminum substrate layer 11, the welding lug 24 is fixed with the welding lug 24 welding point of the aluminum substrate, and the lock catch 26 and the rear cover 25 extend out from one side of the backboard layer 13 of the single-sided PCB; also included is an FFC guide edge 30, the FFC guide edge 30 being used to guide insertion of an FFC flex cable 40 into the negative jack 23.
Wherein, as shown in fig. 3, the FFC flexible flat cable 40 further comprises a flat cable connector 41, and the flat cable connector 41 is used for contacting and connecting with the negative electrode contact 231 in the negative electrode socket 23 of the lamp panel connector.
This scheme has used single face PCB board to reduce product cost, in order to reduce the whole volume of product and avoid the various problems that the horizontal connector of back installation leads to, this scheme has used single face PCB board that has the windowing, install lamp plate connector in the windowing of single face PCB board, set up positive electrode contact 22 in aluminium base sheet layer 11's front, set up the negative pole socket 23 of usefulness of connection at the back of backplate layer 13, thereby the defect of current LED lamp plate backlight module encapsulation scheme has been perfectly solved, further, the flexible winding displacement 40 of FFC that has avoided being difficult to solve in the lamp plate connector installation inserts difficult operation, the problem that the grafting is not hard up easily appears, still use FFC leading edge 30 to promote the connection operability and the connection stability of product.
Example two
The present embodiment provides a specific structure of the FFC guide edge 30, as shown in fig. 4, where the FFC guide edge 30 includes: a bottom plate 31 and two side guide plates 32, the bottom plate 31 and the two side guide plates 32 forming a guide space defining an insertion track of the FFC flexible flat cable 40; the bottom plate 31 has a smooth surface or a stepped surface for adjusting the insertion height of the FFC flexible flat cable 40.
For example, the structure of the FFC guide side 30 having the stepped surface for adjusting the insertion height of the FFC flexible flat cable 40 includes: the inclined sliding surface 311 and the butt joint surface 312, wherein the inclined sliding surface 311 transitions the butt joint surface 312 to the surface of the back plate layer 13 of the single-sided PCB, so that the FFC flexible flat cable 40 can be smoothly inserted into the FFC guide edge 30 and smoothly inserted into the negative electrode jack 23 through the butt joint surface 312.
In another preferred embodiment, the FFC guide edge 30 includes: the bottom plate 31, two side deflector 32 and roof 33, the side deflector 32 includes bottom connecting portion 321, fulcrum portion 322 and top connecting portion 323, bottom connecting portion 321, fulcrum portion 322 and top connecting portion 323 form the zigzag, bottom connecting portion 321 and bottom plate 31 fixed connection of side deflector 32, top connecting portion 323 and roof 33 fixed connection of side deflector 32, bottom plate 31, two side deflector 32 and roof 33 form the guide space that prescribes a limit to FFC flexible flat cable 40 insertion track. A limit part capable of rotating around a limit point 232 is formed between at least one side guide plate 32 of the FFC guide edge 30 and the top plate 33, the FFC guide edge 30 is driven inwards to be attached to the limit point 232 at most when the FFC flexible flat cable 40 is inserted into the negative electrode jack 23, when the limit part is attached to the limit point 232, the top plate 33 of the FFC guide edge 30 stretches into the lower portion of the locking piece 261 of the lock catch 26, when the lock catch 26 is arranged on the upper plate, the FFC flexible flat cable 40 and the negative electrode contact 231 are tightly pressed, meanwhile, the top plate 33 is pressed downwards, and the top plate 33 rotates around the limit point 232 under the pressing action of the locking piece 261 and enables the bottom plate 31 to tilt from the surface of the back plate layer 13.
In the preferred embodiment, the FFC guide edge 30 is first inserted into the negative electrode socket 23, so as to define the relative position between the lamp panel connector and the single-sided PCB, and avoid the different level of high-low offset occurring in the subsequent welding process, which can cause the FFC flexible flat cable 40 to be blocked and not easy to be inserted when being inserted into the negative electrode socket 23. Secondly, the bottom plate 31 is formed at one side of the bottom connecting part 321, and the entering part guiding space formed by the bottom connecting part 321 of the side guide plate 32 ensures that the FFC flexible flat cable 40 is easy to insert into the negative electrode jack 23, and the Z-shaped structure integrally formed by the FFC guide edge 30 can ensure to insert into the negative electrode jack 23, and simultaneously, a certain angle of rotation occurs when one side of the top is pressed down by the locking piece 261 of the lock catch 26, and one side of the bottom connecting part 321 is tilted, so that the FFC guide edge 30 is convenient to dismantle.
Specifically, as shown in fig. 6 and 8, in the open-close state, the FFC guide edge 30 is pre-fixed in the negative electrode socket 23, the FFC flexible flat cable 40 is smoothly inserted into the accurate position in the negative electrode socket 23, at this time, the flat cable connector 41 of the FFC flexible flat cable 40 and the negative electrode contact 231 are in the tool contact range, and the locking member 261 is located at the suspended position;
as shown in fig. 7, 9 and 10, in the upper plate state, the flat cable connector 41 of the FFC flexible flat cable 40 is tightly pressed by the pressing locking member 261 and the negative electrode contact 231, and meanwhile, the top plate 33 is pressed down by a certain angle, and at this time, the supporting point part 322 rotates around the support of the limiting point 232 and lifts the bottom, so that the FFC guide edge 30 is more convenient to detach.
Example III
The present embodiment provides a specific structure of the FFC guide edge 30, where the bottom plate 31 of the FFC guide edge 30 includes a double-layer structure: the laminating layer and displacement layer, the laminating layer is used for laminating at backplate layer 13 surface, but displacement between displacement layer and the laminating layer each other drives the displacement layer and removes to the negative pole socket 23 when FFC flexible flat cable 40 inserts. The problem that bilayer structure solves is that when the soft winding displacement 40 of FFC inserts, the manual work is difficult to insert the soft winding displacement 40 of FFC that has certain flexibility characteristics in place, usually best effort to insert to the negative pole socket 23 depths, easily lead to the soft winding displacement 40 of FFC to warp or winding displacement joint 41 damages, and can rationally solve this problem through the bilayer structure of FFC leading edge 30, when the soft winding displacement 40 of FFC enters into FFC leading edge 30 inside, the laminating layer of FFC leading edge 30 is fixed in backplate layer 13 and the negative pole socket 23 of single face PCB board, and the displacement layer then can follow-up along with the soft winding displacement 40 of FFC inserts, the soft winding displacement 40 of FFC has been led promptly, make the insertion process smoother, avoid the soft winding displacement 40 of FFC to warp, still can limit the soft winding displacement 40 of FFC's of limit structure through displacement layer and negative pole socket 23 internal limit piece's limit, the degree of inserting of FFC soft winding displacement 40 has been guaranteed.
Example IV
The embodiment provides a method for installing an LED lamp panel backlight module, as shown in fig. 11, comprising the following steps:
s101: obtaining a single-sided PCB, wherein the single-sided PCB comprises an aluminum substrate layer 11, a heat conducting glue layer 12 and a back plate layer 13, a window for installing a lamp panel connector is arranged on the single-sided PCB, and an LED lamp bead matrix is arranged on the aluminum substrate layer 11;
s102: obtaining a lamp panel connector, wherein the lamp panel connector comprises an insulating body 21, a positive electrode contact piece 22, a negative electrode socket 23, a soldering lug 24, a rear cover 25 and a lock catch 26;
s103: printing solder paste on at least the contact welding points 14 and welding points of the welding lug 24 of the aluminum substrate layer 11 of the single-sided PCB;
s104: the lamp panel connector is arranged in the window of the single-sided PCB, the positive electrode contact piece 22 is contacted with solder paste on the contact welding point 14, the welding lug 24 is contacted with solder paste on the welding point of the welding lug 24, and the lock catch 26 and the rear cover 25 extend out from one side of the backboard layer 13 of the single-sided PCB;
s105: inserting the FFC guide edge 30 into the negative electrode socket 23 against the back sheet layer 13 and pulling down the light sheet connector from one side of the back sheet layer 13 into place;
s106: wave soldering connects the positive contact 22 with the contact pad 14, and the soldering lug 24 with the soldering lug 24;
s107: the FFC flexible flat cable 40 is inserted into the negative electrode socket 23 along the guiding space of the FFC guiding edge 30 and is contacted with the negative electrode contact 231, the lock catch 26 is switched from the open-close state to the upper plate state, and the flat cable contact of the FFC flexible flat cable 40 and the negative electrode contact 231 are tightly pressed by the locking piece 261 of the lock catch 26.
Further comprises:
s108: the FFC guide edge 30 is removed. The step of removing the FFC guide edge 30 includes: the bottom plate 31 of the FFC guide edge 30 is tilted and separated from the back plate layer 13, and the FFC guide edge 30 is removed.
The specific dismantling method comprises the following steps:
s1081: when the FFC flexible flat cable 40 is inserted into the negative electrode jack 23 along the guiding space of the FFC guiding edge 30, the FFC flexible flat cable 40 drives the FFC guiding edge 30 into the negative electrode jack 23 to the limiting part of the FFC guiding edge 30 to be attached to the limiting point 232, and the FFC flexible flat cable 40 contacts with the negative electrode contact 231, the lock catch 26 is switched from the open-close state to the upper plate state, the locking member 261 of the lock catch 26 tightly presses the flat cable contact of the FFC flexible flat cable 40 and the negative electrode contact 231, the locking member 261 of the lock catch 26 presses the top plate 33 of the FFC guiding edge 30, the top plate 33 lifts the bottom plate 31 from the surface of the back plate layer 13 under the support of the limiting point 232, the self-lifted bottom plate 31 removes the FFC guiding edge 30 along the FFC flexible flat cable 40, wherein the FFC guiding edge 30 comprises: the bottom plate 31, two side deflector 32 and roof 33, the side deflector 32 includes bottom connecting portion 321, fulcrum portion 322 and top connecting portion 323, bottom connecting portion 321, fulcrum portion 322 and top connecting portion 323 form the zigzag, bottom connecting portion 321 and the bottom plate 31 fixed connection of side deflector 32, the top connecting portion 323 and the roof 33 fixed connection of side deflector 32, but form the spacing portion of coiling limit point 232 pivoted between at least one side deflector 32 of FFC deflector 30 and the roof 33.
Or, S1082: the FFC flexible flat cable 40 is inserted into the negative electrode jack 23 along the guiding space of the FFC guiding edge 30, the FFC flexible flat cable 40 drives the displacement layer of the FFC guiding edge 30 into the negative electrode jack 23 until the FFC flexible flat cable contacts with the negative electrode contact 231, the lock catch 26 is switched from the open-close state to the upper plate state, the locking piece 261 of the lock catch 26 tightly presses the flat cable contact of the FFC flexible flat cable 40 and the negative electrode contact 231, the attaching layer of the FFC guiding edge 30 is tilted, and the attaching layer of the FFC guiding edge 30 is pulled out outwards to drive the attaching layer to move and detach the FFC guiding edge 30.
In the preferred embodiment, the FFC guide edge 30 is first inserted into the negative electrode socket 23, so as to define the relative position between the lamp panel connector and the single-sided PCB, and avoid the different level of high-low offset occurring in the subsequent welding process, which can cause the FFC flexible flat cable 40 to be blocked and not easy to be inserted when being inserted into the negative electrode socket 23. Secondly, the bottom plate 31 is formed at one side of the bottom connecting part 321, and the entering part guiding space formed by the bottom connecting part 321 of the side guide plate 32 ensures that the FFC flexible flat cable 40 is easy to insert into the negative electrode jack 23, and the Z-shaped structure integrally formed by the FFC guide edge 30 can ensure to insert into the negative electrode jack 23, and simultaneously, a certain angle of rotation occurs when one side of the top is pressed down by the locking piece 261 of the lock catch 26, and one side of the bottom connecting part 321 is tilted, so that the FFC guide edge 30 is convenient to dismantle.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description. The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application.
It is noted that when an element is referred to as being "fixed" or "disposed on" another element, it can be directly on the other element or be indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the devices or components referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" or "a number" is two or more, unless explicitly defined otherwise.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the scope of the present disclosure, since any structural modifications, proportional changes, or dimensional adjustments made by those skilled in the art should not be made in the present disclosure without affecting the efficacy or achievement of the present disclosure.
Claims (10)
1. The utility model provides a LED lamp plate backlight unit which characterized in that includes:
the LED lamp bead matrix is arranged on the aluminum substrate layer;
the lamp panel connector comprises an insulating body, an anode contact piece, a cathode socket, a soldering lug, a rear cover and a lock catch;
the lamp panel connector is arranged in the window of the single-sided PCB, the positive electrode contact piece is fixed with a contact welding point of the aluminum substrate layer, the welding lug is fixed with a welding lug welding point of the aluminum substrate, and the lock catch and the rear cover extend out from one side of the backboard layer of the single-sided PCB;
the FFC guide edge is used for guiding the FFC flexible flat cable to be inserted into the negative electrode socket.
2. The LED lamp panel backlight module of claim 1, wherein the FFC guide edge comprises: the flexible flat cable comprises a bottom plate and two side guide plates, wherein the bottom plate and the two side guide plates form a guide space for limiting the insertion track of the FFC flexible flat cable;
the base plate has a smooth surface or a stepped surface for adjusting the insertion height of the FFC flexible flat cable.
3. The LED lamp panel backlight module of claim 1, wherein the FFC guide edge comprises: bottom plate, two side deflector and roof, the side deflector includes end connecting portion, fulcrum portion and top connecting portion, end connecting portion, fulcrum portion and top connecting portion form the zigzag, the end connecting portion and the bottom plate fixed connection of side deflector, the top connecting portion and the roof fixed connection of side deflector, bottom plate, two side deflector and roof form the guide space that prescribes a limit to FFC flexible flat cable insertion track.
4. The backlight module of claim 3, wherein a limit part capable of rotating around a limit point is formed between at least one side guide plate of the FFC guide edge and the top plate, the FFC guide edge is inwards driven to be attached to the limit point at most when the FFC flexible flat cable is inserted into the negative electrode socket, when the limit part is attached to the limit point, the top plate of the FFC guide edge extends below a locking piece of the lock catch, when the upper plate is locked, the FFC flexible flat cable is tightly pressed with the negative electrode contact, the top plate is simultaneously pressed down, the top plate rotates around the limit point under the pressing action of the locking piece, and the bottom plate is tilted from the surface of the back plate layer.
5. The LED lamp panel backlight module of claim 2, wherein the bottom plate of the FFC guide edge comprises a double-layer structure: the laminating layer and displacement layer, the laminating layer is used for laminating at backplate layer surface, but displacement between displacement layer and the laminating layer drive displacement layer when FFC soft flat cable inserts and remove in to the negative pole socket.
6. The mounting method of the LED lamp panel backlight module is characterized by comprising the following steps of:
obtaining a single-sided PCB, wherein the single-sided PCB comprises an aluminum substrate layer, a heat conducting glue layer and a back plate layer, a window for installing a lamp panel connector is arranged on the single-sided PCB, and an LED lamp bead matrix is arranged on the aluminum substrate layer;
obtaining a lamp panel connector, wherein the lamp panel connector comprises an insulating body, an anode contact piece, a cathode socket, a soldering lug, a rear cover and a lock catch;
printing solder paste on at least contact welding points and welding sheet welding points of an aluminum substrate layer of the single-sided PCB;
the lamp panel connector is arranged in a window of the single-sided PCB, the positive electrode contact piece is in contact with solder paste on a contact welding point, the welding lug is in contact with the solder paste on the welding lug welding point, and the lock catch and the rear cover extend out from one side of a backboard layer of the single-sided PCB;
inserting the FFC guide edge attached back plate layer into the negative electrode socket and pulling down the lamp panel connector from one side of the back plate layer into place;
the positive electrode contact piece is fixedly connected with a contact welding spot in wave soldering, and the welding lug is fixedly connected with a welding lug welding spot;
the FFC flexible flat cable is inserted into the negative electrode socket along the guide space of the FFC guide edge and is contacted with the negative electrode contact, the lock catch is switched from the opening and closing state to the upper plate state, and the flat cable contact of the FFC flexible flat cable and the negative electrode contact are tightly pressed by the locking piece of the lock catch.
7. The method for mounting an LED lamp panel backlight module according to claim 6, further comprising: and removing the FFC guide edge.
8. The method of claim 7, wherein the step of removing the FFC guide edge comprises:
and tilting the bottom plate of the FFC guide edge and separating from the back plate layer, and removing the FFC guide edge.
9. The method of claim 7, wherein the step of removing the FFC guide edge comprises:
when inserting the flexible flat cable of FFC to the negative pole socket along the direction space of FFC leading edge, the flexible flat cable of FFC drives the spacing portion to the FFC leading edge in to the negative pole socket to spacing point, and flexible flat cable of FFC contacts with the negative pole contact, the hasp is from switching over the state and is switched to upper plate state, the retaining member of hasp is inseparable with the flat cable contact and the negative pole contact pressfitting of the flexible flat cable of FFC, and the retaining member of hasp pushes down the roof of FFC leading edge, the roof is from backplate layer surface perk under the support of spacing point, dismantle the flexible flat cable of FFC leading edge along FFC from the bottom plate of perk, wherein, the FFC leading edge includes: bottom plate, two side deflector and roof, the side deflector includes end connecting portion, fulcrum portion and top connecting portion, end connecting portion, fulcrum portion and top connecting portion form the zigzag, the end connecting portion and the bottom plate fixed connection of side deflector, the top connecting portion and the roof fixed connection of side deflector, form between at least one side deflector of FFC deflector and the roof and can wind spacing point pivoted spacing portion.
10. The method of claim 7, wherein the step of removing the FFC guide edge comprises:
the flexible flat cable of the FFC is inserted into the negative electrode socket along the guide space of the FFC guide edge, the flexible flat cable of the FFC drives the displacement layer of the FFC guide edge into the negative electrode socket until the flexible flat cable of the FFC contacts with the negative electrode contact, the lock catch is switched to an upper plate state from an opening-closing state, the locking piece of the lock catch presses the flat cable contact of the flexible flat cable of the FFC tightly with the negative electrode contact, the attaching layer of the FFC guide edge is tilted, and the attaching layer of the FFC guide edge is pulled out outwards to drive the attaching layer to move and detach the FFC guide edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410172848.6A CN117724267B (en) | 2024-02-07 | LED lamp panel backlight module and mounting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410172848.6A CN117724267B (en) | 2024-02-07 | LED lamp panel backlight module and mounting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117724267A true CN117724267A (en) | 2024-03-19 |
| CN117724267B CN117724267B (en) | 2024-05-17 |
Family
ID=
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|---|---|---|---|---|
| JPH08279378A (en) * | 1995-02-08 | 1996-10-22 | Kiyousera Elco Kk | Connector for fpc/ffc |
| CN203850548U (en) * | 2014-05-06 | 2014-09-24 | 深圳市得润电子股份有限公司 | Connector with self-popping lock catch and unlocking structure |
| CN106019698A (en) * | 2015-03-24 | 2016-10-12 | 三星电子株式会社 | Display device |
| TW201724669A (en) * | 2015-11-10 | 2017-07-01 | 第一精工股份有限公司 | Electrical connector |
| CN217215336U (en) * | 2022-02-24 | 2022-08-16 | 常诚车业江苏有限公司 | Flexible flat cable connector with detection function |
| CN115407549A (en) * | 2021-05-28 | 2022-11-29 | 海信视像科技股份有限公司 | Display device |
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08279378A (en) * | 1995-02-08 | 1996-10-22 | Kiyousera Elco Kk | Connector for fpc/ffc |
| CN203850548U (en) * | 2014-05-06 | 2014-09-24 | 深圳市得润电子股份有限公司 | Connector with self-popping lock catch and unlocking structure |
| CN106019698A (en) * | 2015-03-24 | 2016-10-12 | 三星电子株式会社 | Display device |
| TW201724669A (en) * | 2015-11-10 | 2017-07-01 | 第一精工股份有限公司 | Electrical connector |
| CN115407549A (en) * | 2021-05-28 | 2022-11-29 | 海信视像科技股份有限公司 | Display device |
| CN217215336U (en) * | 2022-02-24 | 2022-08-16 | 常诚车业江苏有限公司 | Flexible flat cable connector with detection function |
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