CN209562931U - A flexible substrate for a laser reading head - Google Patents

Abstract

The utility model discloses a flexible substrate of a laser reading head, which comprises a substrate and the laser reading head, wherein the outer surface of the laser reading head is fixedly connected with a joint through a FPC soft board, the upper end surface of the substrate is provided with a folding plate, the outer surface of the joint is connected with the inner side surface of the folding plate in a sliding way, the upper end surface of the substrate is provided with a slot, the lower surface of the joint is fixedly connected with a bending connecting sheet, the outer surface of the bending connecting sheet is tightly attached to the inner side surface of the substrate through the slot, the inner side surface of the groove at the front and rear ends of the folding plate is fixedly connected with a clamping head through an elastic clamping card, the outer surface of the clamping head is connected with the inner side surface at the front and rear ends of the joint in a sliding way through a clamping groove, after the bending connecting sheet on the joint is clamped with the slot in the substrate, the firmness after the joint connection can be improved.

Description

A flexible substrate for a laser reading head

technical field

The utility model relates to the technical field of flexible substrates, in particular to a flexible substrate of a laser reading head.

Background technique

The laser reading head is a device for on-board DVD. The laser reading head needs to be connected with the flexible substrate of the laser reading head. The flexible circuit is a special circuit composed of electronic components mounted on a flexible substrate. The substrate is usually such as poly Polymer materials such as imide plastic, polyether ether ketone or transparent conductive polyester, which are characterized by light weight, thin thickness, softness and bendability;

After the FPC soft board connector of the laser reading head is connected to the substrate, the firmness is not good, and it is easy to loosen and fall off.

Utility model content

The purpose of the present utility model is to provide a flexible substrate of a laser reading head to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions: a flexible substrate for a laser reading head, including a substrate and a laser reading head, the outer surface of the laser reading head is fixedly connected with a joint through an FPC soft board, and the The upper surface of the base plate is provided with an angled plate, the outer surface of the joint is slidably connected to the inner surface of the angled plate, the upper end surface of the base plate is provided with a slot, and the lower surface of the joint is fixedly connected with a curved connecting piece. The outer surface of the curved connecting piece is closely attached to the inner surface of the substrate through the slot;

The inner surface of the groove at the front and rear ends of the angled plate is fixedly connected with a clip through an elastic card, and the outer surface of the clip is slidably connected to the inner surface of the front and rear ends of the joint through a card slot.

Preferably, the inner surface of the angled plate is covered with a rubber layer.

Preferably, a notch is provided on the outer surface of the upper end of the elastic card.

Preferably, the lower surface of the FPC flexible board is fixedly connected with an aluminum sheet, and the lower surface of the aluminum sheet is fixedly bonded to the upper surface of the substrate through the first AD adhesive layer.

Preferably, the substrate includes an IP substrate, a second AD adhesive layer, a first copper foil layer, a nickel-plated layer, and a gold-plated layer, and the inner end surface of the IP substrate is fixedly connected with the first copper foil through the second AD adhesive layer layer, a gold-plated layer, and a nickel-plated layer is provided on the inner surface of the first copper foil layer and the gold-plated layer.

Preferably, the socket of the substrate is provided with a second copper foil layer.

Compared with the prior art, the beneficial effect of the utility model is: after the curved connecting piece on the joint is clamped with the slot in the base plate, the clamp head is driven into the joint by the elastic card for further positioning, which can improve the The firmness of the joint connection.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is the top view of the overall structure of the utility model;

Fig. 3 is a side view sectional view of the connection relationship between the joint and the angled plate of the present invention;

Fig. 4 is the enlarged view of A place of the present utility model;

Fig. 5 is the enlarged view of B place of the present utility model;

Fig. 6 is the enlarged view of C place of the present utility model;

Fig. 7 is the enlarged view of D place of the present utility model.

In the figure: 1 substrate, 2 laser reading head, 3 FPC soft board, 4 joints, 5 angled boards, 6 curved connecting pieces, 7 slots, 8 grooves, 9 elastic cards, 10 card heads, 11 card slots, 12 rubber layer, 13 gap, 14 aluminum sheet, 15 first AD adhesive layer, 16TP substrate, 17 second AD adhesive layer, 18 first copper foil layer, 19 nickel plating layer, 20 gold plating layer.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In describing the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical" , "horizontal", "top", "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the utility model, rather than Any indication or implication that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation should not be construed as limiting the invention.

Please refer to Figures 1-7, the utility model provides a technical solution: a flexible substrate of a laser reading head, including a substrate 1, a laser reading head 2, and the outer surface of the laser reading head 2 is fixedly connected by an FPC soft board 3 There is a joint 4, the upper surface of the substrate 1 is provided with an angled plate 5, the outer surface of the joint 4 is slidingly connected to the inner surface of the angled plate 5, the upper surface of the substrate 1 is provided with a slot 7, and the lower surface of the joint 4 is fixedly connected with a curved The connecting piece 6, the outer surface of the curved connecting piece 6 is closely attached to the inner surface of the substrate 1 through the slot 7;

The inner surface of the front and rear end grooves 8 of the angled plate 5 is fixedly connected with the chuck 10 through the elastic card 9, and the outer surface of the chuck 10 is slidably connected to the front and rear inner surfaces of the joint 4 through the slot 11;

The inner surface of the angled plate 5 is covered with a rubber layer 12, which is to clamp the joint 4 in the angled plate 5 during use. At this time, the curved connecting piece 6 at the lower end of the joint 4 is inserted into the slot 7 in the base plate 1 for Clamping and fixing, at this time, the elastic card 9 drives the chuck head 10 to snap into the slot 11 at both ends of the joint 4, and the joint 4 is positioned again, and the rubber layer 12 improves the tightness between the joint 4 and the angled plate 5 at this time, Connector 4 is more firmly connected;

The outer surface of the upper end of the elastic card 9 is provided with a notch 13. When dismounting, a screwdriver is inserted along the notch 13, and the elastic card 9 can be turned outwards, and the card head 10 can be driven to break away from the slot 11. At this time, it can be buckled out. Connector 4, easy to disassemble;

The lower surface of the FPC soft board 3 is fixedly connected with an aluminum sheet 14, and the lower surface of the aluminum sheet 14 is fixedly bonded to the upper surface of the substrate 1 through the first AD adhesive layer 15. The aluminum sheet 14 increases the strength of the FPC soft board 3, increases Durability, the first AD adhesive layer 15 is fixed and bonded to the upper surface of the substrate 1 firmly and conveniently;

The substrate 1 includes an IP base material 16, a second AD adhesive layer 17, a first copper foil layer 18, a nickel-plated layer 19, and a gold-plated layer 20. The inner end surface of the IP base material 16 is fixedly connected with the second AD adhesive layer 17. A copper foil layer 18, a gold-plated layer 20, the inner surface of the first copper foil layer 18 and the gold-plated layer 20 is provided with a nickel-plated layer 19, and the substrate 1 adopts a PI base material 16 as a polyimide material, which is a polymer material. It has good flexibility, excellent heat resistance and high reliability. It is used as a permanent protective layer of FPC to maintain the electrical insulation between high-precision lines and protect the lines from environmental influences such as dust, temperature, and humidity. The gold-plated layer 20 has a good conductivity, the first copper foil layer 18 is for making wiring, and has the function of current transmission, and the nickel-plated layer 19 is used as a barrier layer between the gold-plated layer 20 and the first copper foil layer 18 to prevent mutual diffusion between metals, and not It will affect the weldability and service life, greatly increase the mechanical strength between metals, and the substrate 1 has good and high reliability when used;

The slot 7 of the substrate 1 is provided with a second copper foil layer, the second copper foil layer is connected to the first copper foil layer 18 , and the curved connecting piece 6 can be inserted into the slot 7 to be energized.

When the utility model is actually implemented: when in use, the joint 4 is clamped in the angled plate 5, and at this time the curved connecting piece 6 at the lower end of the joint 4 is clamped into the slot 7 in the substrate 1 for clamping and fixing, and then The clamp head 10 is driven by the elastic card 9 into the slot 11 at both ends of the joint 4, and the joint 4 is positioned again. The rubber layer 12 improves the tightness between the joint 4 and the angled plate 5 at this time, and the joint 4 is more firmly connected. When disassembling, take a screwdriver and insert it along the notch 13, the elastic card 9 can be turned outwards, and the card head 10 can be driven out of the card slot 11. At this time, the joint 4 can be buckled to facilitate disassembly. The substrate 1 adopts PI substrate 16 is a polyimide material, which is a polymer material with good flexibility, excellent heat resistance and high reliability. It is used as a permanent protective layer of FPC to maintain the electrical insulation between high-precision lines and protect the lines from damage. To collect dust, temperature, humidity and other environmental influences, the gold-plated layer 20 has good electrical conductivity, the first copper foil layer 18 is for making wiring, and has the function of current transmission, and the nickel-plated layer 19 is used as the gold-plated layer 20 and the first copper foil layer The barrier layer between 18 prevents mutual diffusion between metals, does not affect solderability and service life, greatly increases the mechanical strength between metals, and the substrate 1 has good and high reliability when used.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (6)

1. A laser reading head flexible substrate, comprising substrate (1), laser reading head (2), is characterized in that: the outer surface of described laser reading head (2) is fixedly connected by FPC soft board (3) There is a joint (4), the upper surface of the base plate (1) is provided with an angled plate (5), the outer surface of the joint (4) is slidably connected to the inner surface of the angled plate (5), and the base plate (1) A slot (7) is provided on the upper surface of the joint (4), and a curved connecting piece (6) is fixedly connected to the lower surface of the joint (4), and the outer surface of the curved connecting piece (6) is closely fitted through the slot (7) on the inside surface of the substrate (1); The inner surface of the front and rear end grooves (8) of the gusset plate (5) is fixedly connected with a chuck (10) through an elastic card (9), and the outer surface of the chuck (10) slides through the groove (11) It is connected to the inside surface of the front and rear ends of the joint (4). 2. A flexible substrate for a laser reading head according to claim 1, characterized in that: the inner surface of the angled plate (5) is covered with a rubber layer (12). 3. A flexible substrate for a laser reading head according to claim 1, characterized in that: a notch (13) is provided on the outer surface of the upper end of the elastic card (9). 4. A kind of laser reading head flexible substrate as claimed in claim 1, is characterized in that: the lower surface of described FPC flexible board (3) is fixedly connected with aluminum sheet (14), and the lower surface of aluminum sheet (14) It is fixedly bonded to the upper surface of the substrate (1) through the first AD adhesive layer (15). 5. A laser reading head flexible substrate according to claim 1, characterized in that: the substrate (1) comprises an IP substrate (16), a second AD adhesive layer (17), a first copper foil layer (18), nickel-plated layer (19), gold-plated layer (20), the inner end surface of IP substrate (16) is fixedly connected with the first copper foil layer (18), gold-plated layer by the second AD adhesive layer (17) (20), the inner surface of the first copper foil layer (18) and the gold-plated layer (20) is provided with a nickel-plated layer (19). 6 . The flexible substrate of a laser pickup head according to claim 1 , wherein a second copper foil layer is provided at the slot ( 7 ) of the substrate ( 1 ).