阅读说明：本技术 一种电容式触摸屏用复合柔性线路板 (Composite flexible circuit board for capacitive touch screen ) 是由 钟伟 于 2021-07-26 设计创作，主要内容包括：本发明涉及复合柔性线路板技术领域,具体的说是一种电容式触摸屏用复合柔性线路板,包括线路板本体；所述线路板本体上设有固定结构；所述固定结构的内侧设有连接结构；所述线路板本体贯穿有卷收结构；所述卷收结构内侧设有保持结构；所述线路板本体的侧面设有分层结构；通过固定结构对线路板本体与端口连接处进行防护,避免拉拽损坏接口,通过连接结构方便对线路板本体进行拆装操作,通过卷收结构对多余长度的线路板本体进行卷收,节省装置外壳内部的空间,通过保持结构避免完成卷收的线路板本体发生回转的情况,通过分层结构对叠加设置的两侧线路板本体之间的空隙进行支撑,避免发生贴合。(The invention relates to the technical field of composite flexible circuit boards, in particular to a composite flexible circuit board for a capacitive touch screen, which comprises a circuit board body; the circuit board body is provided with a fixing structure; the inner side of the fixed structure is provided with a connecting structure; the circuit board body penetrates through the winding structure; a holding structure is arranged on the inner side of the furling structure; the side surface of the circuit board body is provided with a layered structure; the circuit board body is protected from being pulled and damaged by the fixed structure at the joint of the circuit board body and the port, the circuit board body with the redundant length is conveniently disassembled and assembled through the connecting structure, the circuit board body with the redundant length is rolled up through the rolling structure, the space inside the shell of the device is saved, the circuit board body which is rolled up is prevented from rotating through the retaining structure, the gap between the circuit board bodies on the two sides of the stacking arrangement is supported through the layered structure, and the laminating is avoided.)

1. The composite flexible circuit board for the capacitive touch screen is characterized by comprising a circuit board body (1); the circuit board body (1) is provided with a fixing structure (2); a connecting structure (3) is arranged on the inner side of the fixed structure (2); the circuit board body (1) penetrates through the winding structure (4); a holding structure (5) is arranged on the inner side of the furling structure (4); the side face of the circuit board body (1) is provided with a layered structure (6).

2. The composite flexible circuit board for the capacitive touch screen according to claim 1, wherein: the fixed structure (2) comprises a fixed base plate (21), the bottom side of the circuit board body (1) is provided with the fixed base plate (21), the top side of the fixed base plate (21) is abutted with a cover plate (22), two sides of the cover plate (22) are respectively and fixedly connected with a guide post (24), the guide post (24) is in sliding connection with the fixed base plate (21), the top side of the fixed base plate (21) is fixedly connected with a through post (25), two sides of the circuit board body (1) are respectively provided with a plurality of positioning holes (23), and the through post (25) penetrates through the circuit board body (1) through the positioning holes (23).

3. The composite flexible circuit board for the capacitive touch screen according to claim 2, wherein: the connecting structure (3) comprises a buckling column (33), the buckling column (33) is arranged on the bottom side of the cover plate (22), the buckling column (33) is connected with a penetrating column (25) arranged on the same side in a sliding mode, a clamping plate (36) is fixedly connected to the inner side of the penetrating column (25), a connecting hook (35) is fixedly connected to the end portion of the buckling column (33), the connecting hook (35) is clamped with the clamping plate (36), a pushing block (37) is abutted to the end portion of the connecting hook (35), and a first spring (38) is fixedly connected between the bottom side of the pushing block (37) and the fixed base plate (21).

4. The composite flexible circuit board for the capacitive touch screen according to claim 3, wherein: the novel buckling type solar cell module is characterized in that a first torsion spring (34) is fixedly connected between the buckling column (33) and the cover plate (22), a gear (32) is fixedly connected to the side face of the buckling column (33), the buckling column (33) is rotatably connected with the cover plate (22), a driving push block (31) is slidably connected to the top side of the cover plate (22), and two sides of the driving push block (31) are meshed with the gear (32) on the same side respectively.

5. The composite flexible circuit board for the capacitive touch screen according to claim 1, wherein: the winding structure (4) comprises a receiving rod (41), a through hole (42) is formed in the receiving rod (41), the circuit board body (1) penetrates through the receiving rod (41) through the through hole (42), one end of the receiving rod (41) is rotatably connected with an installation side block (43), a winding shaft (44) is fixedly connected to the inner side of the installation side block (43), and the receiving rod (41) is rotatably connected with the winding shaft (44).

6. The composite flexible circuit board for the capacitive touch screen according to claim 5, wherein: the holding structure (5) comprises a ratchet wheel (56), the end part of the accommodating rod (41) is provided with the ratchet wheel (56), the side surface of the ratchet wheel (56) is provided with a plurality of sliding toothed blocks (57), one end of each sliding toothed block (57) is meshed with the side surface of the ratchet wheel (56), and a third spring (58) is fixedly connected between the other end of each sliding toothed block (57) and the mounting side block (43).

7. The composite flexible circuit board for the capacitive touch screen according to claim 6, wherein: the end part of the accommodating rod (41) is fixedly connected with a splicing block (55), a positioning groove (59) is formed in the inner side of the ratchet wheel (56), and the splicing block (55) is connected with the inner side of the ratchet wheel (56) in a sliding mode through the positioning groove (59).

8. The composite flexible circuit board for the capacitive touch screen according to claim 6, wherein: the end of the accommodating rod (41) is abutted with a supporting plate (54), a second spring (53) is fixedly connected between the supporting plate (54) and the mounting side block (43), and the other end of the accommodating rod (41) is rotatably connected with a release rotary sleeve (51).

9. The composite flexible circuit board for the capacitive touch screen according to claim 1, wherein: layered structure (6) include stopper (61), there are two stopper (61), four in the both sides difference sliding connection of circuit board body (1) be fixed with a first swing arm (62) and a second swing arm (63) between stopper (61) alternately, just the middle part of first swing arm (62) and second swing arm (63) is rotated through pivot (64) and is connected, the middle part parallel of first swing arm (62) is equipped with two protruding (65) of stereotyping, and two distance between the protruding (65) of stereotyping equals the width of second swing arm (63).

Technical Field

The invention relates to the technical field of composite flexible circuit boards, in particular to a composite flexible circuit board for a capacitive touch screen.

Background

Flexible circuit boards, also known as "flexible boards," are printed circuits made from flexible, insulating substrates. Flexible circuits provide excellent electrical performance, meet design requirements for smaller and higher density packaging, and also help reduce assembly processes and enhance reliability. The flexible circuit board is the only solution to meet the miniaturization and movement requirements of electronic products. The flexible printed circuit board can be freely bent, wound and folded, can bear millions of dynamic bending without damaging the lead, can be randomly arranged according to the space layout requirement, and can be freely moved and stretched in a three-dimensional space, so that the integration of component assembly and lead connection is realized; the flexible circuit board can greatly reduce the volume and the weight of the electronic product, and is suitable for the development of the electronic product towards high density, miniaturization and high reliability. In order to save the space inside the machine, a flexible circuit board is adopted when the capacitive touch screen is installed and connected, and meanwhile, the installation of elements is facilitated.

However, the conventional flexible printed circuit board only depends on the surface packaging film to protect the internal circuit, so that if the flexible printed circuit board is repeatedly bent or pulled in the machine repairing and maintaining process, the flexible printed circuit board is easily broken or even damaged at the connecting port, and meanwhile, if the multilayer flexible printed circuit boards are stacked for use, the heat dissipation of the circuit board is inconvenient, and meanwhile, the corrosion of the circuit board can be aggravated to influence the service life.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a composite flexible circuit board for a capacitive touch screen.

The technical scheme adopted by the invention for solving the technical problems is as follows: a composite flexible circuit board for a capacitive touch screen comprises a circuit board body; the circuit board body is provided with a fixing structure; the inner side of the fixed structure is provided with a connecting structure; the circuit board body penetrates through the winding structure; a holding structure is arranged on the inner side of the furling structure; and a layered structure is arranged on the side surface of the circuit board body.

Specifically, the fixed structure comprises a fixed base plate, a fixed base plate is arranged on the bottom side of the circuit board body, a cover plate is abutted to the top side of the fixed base plate, finger guide posts are fixedly connected to two sides of the cover plate respectively and are in sliding connection with the fixed base plate, penetrating posts are fixedly connected to the top side of the fixed base plate, a plurality of positioning holes are formed in two sides of the circuit board body respectively, and the penetrating posts penetrate through the circuit board body through the positioning holes.

Specifically, the connecting structure comprises a buckling column, the bottom side of the cover plate is provided with the buckling column, the buckling column is connected with a penetrating column arranged on the same side in a sliding mode, the inner side of the penetrating column is fixedly connected with a clamping plate, the end portion of the buckling column is fixedly connected with a connecting hook, the connecting hook is clamped with the clamping plate, the end portion of the connecting hook is abutted against a pushing block, a first spring is fixedly connected between the bottom side of the pushing block and a fixed base plate, a first torsion spring is fixedly connected between the buckling column and the cover plate, a gear is fixedly connected to the side face of the buckling column, the buckling column is connected with the cover plate in a rotating mode, the top side of the cover plate is connected with a driving pushing block in a sliding mode, and the two sides of the driving pushing block are respectively meshed with the gears on the same side.

Specifically, the winding structure comprises a containing rod, a through hole is formed in the containing rod, the circuit board body penetrates through the containing rod through the through hole, an installation side block is connected to one end of the containing rod in a rotating mode, a winding shaft is fixedly connected to the inner side of the installation side block, and the containing rod is connected with the winding shaft in a rotating mode.

Specifically, the holding structure includes the ratchet, the tip of accomodating the pole is equipped with the ratchet, the side of ratchet is equipped with a plurality of slip tooth pieces, the one end of slip tooth piece meshes with the side of ratchet mutually, fixedly connected with third spring between the other end of slip tooth piece and the installation side piece, the tip fixedly connected with amalgamation piece of accomodating the pole, the constant head tank has been seted up to the inboard of ratchet, the amalgamation piece passes through the inboard sliding connection of constant head tank and ratchet, the tip of accomodating the pole is contradicted and is had the backup pad, fixedly connected with second spring between backup pad and the installation side piece, the other end of accomodating the pole rotates and is connected with the release and revolves the cover.

Specifically, the layered structure includes the stopper, there are two stoppers, four in the both sides difference sliding connection of circuit board body cross fixation has a first swing arm and a second swing arm between the stopper, just the middle part of first swing arm and second swing arm is rotated through the pivot and is connected, the middle part parallel of first swing arm is equipped with two and sets shape protrudingly, and two distance between the protruding of setting is equal to the width of second swing arm.

The invention has the beneficial effects that:

(1) according to the composite flexible circuit board for the capacitive touch screen, a fixing structure is arranged on the circuit board body; the inner side of the fixed structure is provided with a connecting structure; protect circuit board body and port junction through fixed knot structure, avoid dragging and drag the damage interface, carry out dismouting operation, promptly to circuit board body through connection structure is convenient: firstly, when the circuit board body is connected with the touch screen assembly, in order to prevent the interface from being influenced by pulling of the circuit board body, the fixed bottom board and the device shell need to be fixed, then the circuit board body is arranged on the surface of the fixed bottom board, meanwhile, proper positioning holes on two sides of the circuit board body are selected, so that the through column on the fixed bottom board penetrates through the selected positioning hole, then the cover board is accurately buckled on the surface of the fixed bottom board through the guide column, thereby the circuit board body can not influence the circuit board body between the fixed bottom board and the interface when being pulled, the damage to the interface caused by pulling is avoided, when the fixed bottom board is in a fixed state, the cover board can not be separated, thereby achieving a better effect of fixing the circuit board body, when the cover board is buckled with the fixed bottom board, the buckling column on the bottom side of the cover board can also slide into the inner side of the through column, the tip of lock post is equipped with the coupling hook, for the coupling hook with run through inboard snap-plate looks block of post, thereby prevent the apron and break away from, the user can be through the drive ejector pad on slip apron surface, meshing effect through between drive ejector pad and the gear drives the lock post and rotates, and then adjust the orientation of coupling hook, when the user promotes the drive ejector pad, the coupling hook can be slided in by the breach department of snap-plate, then when taking the user to release the drive ejector pad, under the drive, the orientation of coupling hook can change again, thereby fix the apron, the convenience is installed and is dismantled the circuit board body.

(2) According to the composite flexible circuit board for the capacitive touch screen, the circuit board body penetrates through the winding structure; a holding structure is arranged on the inner side of the furling structure; roll up the circuit board body of unnecessary length through roll-up structure, the inside space of save device shell avoids accomplishing the circuit board body of roll-up through the retaining structure and takes place the condition of gyration, promptly: when the length of the circuit board body in the device shell is too long in the installation process, in order to arrange the redundant circuit board body, a user can enable the end part of the circuit board body to penetrate through a through hole formed in the containing rod, then the installation side block is fixed at the corresponding position of the inner side of the device shell, the circuit board body can be wound and contained by rotating the containing rod, a ratchet wheel is arranged between the containing rod and the installation side block, the containing rod can only rotate around a winding shaft in a one-way mode through a sliding tooth block arranged in the installation side block, so that the problem of circuit board body rotation is avoided, when the circuit board body needs to be taken down, the user can push a release rotating sleeve at the end part of the containing rod, the containing rod can slide towards the inner side of the installation side block, the second spring is compressed through the supporting plate, and at the moment, the splicing block on the side surface of the containing rod is separated from a positioning groove on the ratchet wheel, thereby make this moment accomodate the pole and can freely rotate again, and then release the circuit board body of roll-up, on the other hand, when need roll-up circuit board body again, the user then need rotate accomodate the pole until the piece that splices imbeds the constant head tank inside again can.

(3) According to the composite flexible circuit board for the capacitive touch screen, a layered structure is arranged on the side face of the circuit board body; support the space between the both sides circuit board body that sets up through layered structure, avoid taking place the laminating, promptly: if use double-deck or even during multilayer circuit board body, in order not to take place direct contact each other, keep good radiating effect, the user can arrange first swing arm and second swing arm in between the circuit board body, then rotate first swing arm and second swing arm around the pivot, until the second swing arm through the setting that sets up on the first swing arm protruding when spacing, the stopper that first swing arm and second swing arm tip set up this moment is inconsistent with the side department of circuit board body, thereby guarantee that the two-layer circuit board body of both sides can not take place to contradict, protect the circuit board body.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic structural diagram of an overall structure of a preferred embodiment of a composite flexible circuit board for a capacitive touch screen according to the present invention;

fig. 2 is a schematic view of a connection structure of the circuit board body and the fixing structure shown in fig. 1;

FIG. 3 is an enlarged view of the part A shown in FIG. 2;

FIG. 4 is a schematic view of the connection structure of the retracting structure and the retaining structure shown in FIG. 1;

FIG. 5 is an enlarged view of the structure of the portion B shown in FIG. 4;

FIG. 6 is a schematic structural view of the retaining structure shown in FIG. 1;

FIG. 7 is a schematic structural view of the layered structure shown in FIG. 1;

fig. 8 is a schematic structural diagram of the limiting block shown in fig. 7.

In the figure: 1. the circuit board comprises a circuit board body, 2, a fixing structure, 21, a fixing base plate, 22, a cover plate, 23, a positioning hole, 24, a guide post, 25, a penetrating post, 3, a connecting structure, 31, a driving push block, 32, a gear, 33, a buckling post, 34, a first torsion spring, 35, a connecting hook, 36, a clamping plate, 37, a pushing block, 38, a first spring, 4, a winding structure, 41, a containing rod, 42, a penetrating hole, 43, an installation side block, 44, a winding shaft, 5, a retaining structure, 51, a release turnbuckle, 52, a second torsion spring, 53, a second spring, 54, a supporting plate, 55, a split block, 56, a ratchet wheel, 57, a sliding tooth block, 58, a third spring, 59, a positioning groove, 6, a layered structure, 61, a limiting block, 62, a first turning rod, 63, a second turning rod, 64, a rotating shaft, 65 and a shaping protrusion.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 8, the composite flexible circuit board for the capacitive touch screen of the present invention includes a circuit board body 1; the circuit board body 1 is provided with a fixing structure 2; the inner side of the fixed structure 2 is provided with a connecting structure 3; the circuit board body 1 penetrates through the winding structure 4; a holding structure 5 is arranged on the inner side of the furling structure 4; the side of the circuit board body 1 is provided with a layered structure 6.

Specifically, the fixing structure 2 includes a fixing bottom plate 21, the bottom side of the circuit board body 1 is provided with the fixing bottom plate 21, the top side of the fixing bottom plate 21 is abutted with a cover plate 22, two sides of the cover plate 22 are fixedly connected with a finger guide post 24 respectively, the finger guide post 24 is connected with the fixing bottom plate 21 in a sliding manner, the top side of the fixing bottom plate 21 is fixedly connected with a through post 25, two sides of the circuit board body 1 are provided with a plurality of positioning holes 23 respectively, and the through post 25 penetrates through the circuit board body 1 through the positioning holes 23; and then through fixed knot constructs 2 is right circuit board body 1 protects with the port junction, avoids dragging and pulls and damage the interface, promptly: firstly, when the circuit board body 1 is connected with the touch screen assembly, in order to prevent the interface from being affected by pulling on the circuit board body 1, the fixing bottom plate 21 and the device housing need to be fixed, then, the circuit board body 1 is placed on the surface of the fixing bottom plate 21, the positioning holes 23 suitable for both sides of the circuit board body 1 are simultaneously selected, the through posts 25 on the fixing bottom plate 21 penetrate through the selected positioning holes 23, and then the cover plate 22 is accurately buckled on the surface of the fixing bottom plate 21 through the guide posts 24, so that the circuit board body 1 cannot affect the circuit board body 1 between the fixing bottom plate 21 and the interface when being pulled, and the interface is prevented from being damaged by pulling.

Specifically, the connecting structure 3 includes a fastening column 33, the bottom side of the cover plate 22 is provided with the fastening column 33, the buckling column 33 is connected with the through column 25 arranged at the same side in a sliding way, the inner side of the through column 25 is fixedly connected with a clamping plate 36, the end of the fastening column 33 is fixedly connected with a connecting hook 35, the connecting hook 35 is fastened with a fastening plate 36, the end of the connecting hook 35 is abutted with an ejector 37, a first spring 38 is fixedly connected between the bottom side of the ejector 37 and the fixed bottom plate 21, a first torsion spring 34 is fixedly connected between the buckling column 33 and the cover plate 22, a gear 32 is fixedly connected to the side surface of the buckling column 33, the buckling column 33 is rotatably connected with the cover plate 22, the top side of the cover plate 22 is slidably connected with a driving push block 31, and two sides of the driving push block 31 are respectively meshed with the gears 32 on the same side; and then through connection structure 3 is convenient right circuit board body 1 carries out the dismouting operation, promptly: when the fixing base plate 21 is in a fixed state, in order to prevent the cover plate 22 from being separated, and thus achieve a better effect of fixing the circuit board body 1, when the cover plate 22 is fastened to the fixing base plate 21, the fastening posts 33 on the bottom side of the cover plate 22 also slide into the inner sides of the through posts 25, the connecting hooks 35 are disposed at the ends of the fastening posts 33, in order to fasten the connecting hooks 35 to the fastening plates 36 on the inner sides of the through posts 25, and thus prevent the cover plate 22 from being separated, a user can slide the driving push block 31 on the surface of the cover plate 22, and drive the fastening posts 33 to rotate through the engagement between the driving push block 31 and the gear 32, so as to adjust the orientation of the connecting hooks 35, and when the user pushes the driving push block 31, the connecting hooks 35 can slide into the notches of the fastening plates 36, when the user releases the driving pushing block 31, the orientation of the connecting hook 35 is changed again under the driving of the driving pushing block 34, so that the cover plate 22 is fixed, and the circuit board body 1 is convenient to mount and dismount.

Specifically, the winding structure 4 includes a receiving rod 41, a through hole 42 is formed in the receiving rod 41, the circuit board body 1 penetrates through the receiving rod 41 through the through hole 42, an installation side block 43 is rotatably connected to one end of the receiving rod 41, a winding shaft 44 is fixedly connected to the inner side of the installation side block 43, and the receiving rod 41 and the winding shaft 44 are rotatably connected; and then through roll-up structure 4 is to unnecessary length circuit board body 1 rolls up, the inside space of saving device shell, promptly: when the length of the circuit board body 1 inside the device shell is too long in the installation process, in order to arrange the redundant circuit board body 1, a user can pass the end part of the circuit board body 1 through the through hole 42 formed in the accommodating rod 41, then fix the installation side block 43 at the corresponding position inside the device shell, and roll up and accommodate the circuit board body 1 by rotating the accommodating rod 41.

Specifically, the holding structure 5 includes a ratchet wheel 56, the end of the receiving rod 41 is provided with the ratchet wheel 56, the side of the ratchet wheel 56 is provided with a plurality of sliding toothed blocks 57, one end of each sliding toothed block 57 is meshed with the side of the ratchet wheel 56, a third spring 58 is fixedly connected between the other end of each sliding toothed block 57 and the mounting side block 43, the end of the receiving rod 41 is fixedly connected with a split block 55, the inner side of the ratchet wheel 56 is provided with a positioning groove 59, the split block 55 is slidably connected with the inner side of the ratchet wheel 56 through the positioning groove 59, the end of the receiving rod 41 is abutted against a supporting plate 54, a second spring 53 is fixedly connected between the supporting plate 54 and the mounting side block 43, and the other end of the receiving rod 41 is rotatably connected with a release turnbuckle 51; further, in order to avoid the rotation of the wiring board body 1 after the winding, the following steps are performed: the ratchet wheel 56 is arranged between the receiving rod 41 and the mounting side block 43, the sliding tooth block 57 arranged in the mounting side block 43 enables the receiving rod 41 to rotate only around the winding shaft 44 in one direction, so as to avoid the problem of rotation of the circuit board body 1, when the circuit board body 1 needs to be taken down, a user can push the release rotating sleeve 51 at the end of the receiving rod 41 to enable the receiving rod 41 to slide towards the inner side of the mounting side block 43, the second spring 53 is compressed through the supporting plate 54, the splicing block 55 at the side surface of the receiving rod 41 is pulled out from the positioning groove 59 on the ratchet wheel 56, so that the receiving rod 41 can rotate freely again at the moment, the wound circuit board body 1 is released, on the other hand, when the circuit board body 1 needs to be wound again, the user needs to rotate the receiving rod 41 until the splicing block 55 is inserted into the positioning slot 59 again.

Specifically, the layered structure 6 includes two limiting blocks 61, two sides of the circuit board body 1 are respectively connected with the two limiting blocks 61 in a sliding manner, a first rotating rod 62 and a second rotating rod 63 are fixed between the four limiting blocks 61 in a crossed manner, the middle parts of the first rotating rod 62 and the second rotating rod 63 are rotatably connected through a rotating shaft 64, two shaping protrusions 65 are arranged in parallel in the middle part of the first rotating rod 62, and the distance between the two shaping protrusions 65 is equal to the width of the second rotating rod 63; and then pass through 6 both sides that set up to the stack the space between the circuit board body 1 supports, avoids taking place the laminating, promptly: if use double-deck even multilayer during circuit board body 1, in order not to take place direct contact each other, keep good radiating effect, the user can with first swing arm 62 with second swing arm 63 arranges in between the circuit board body 1, then will first swing arm 62 with second swing arm 63 centers on pivot 64 rotates, until second swing arm 63 passes through first swing arm 62 is last to be set up when the setting is protruding 65 carries on spacingly, at this moment first swing arm 62 with the setting of second swing arm 63 tip stopper 61 with the side department of circuit board body 1 is inconsistent, thereby guarantees two-layer of both sides circuit board body 1 can not take place to contradict, to circuit board body 1 protects.

When the invention is used, firstly, when the circuit board body 1 is connected with the touch screen component, in order to prevent the interface from being influenced by pulling of the circuit board body 1, the fixing bottom plate 21 and the device shell are required to be fixed, then, the circuit board body 1 is arranged on the surface of the fixing bottom plate 21, meanwhile, the proper positioning holes 23 on the two sides of the circuit board body 1 are selected, the through column 25 on the fixing bottom plate 21 penetrates through the selected positioning hole 23, then the cover plate 22 is accurately buckled on the surface of the fixing bottom plate 21 through the guide column 24, so that the circuit board body 1 can not influence the circuit board body 1 between the fixing bottom plate 21 and the interface when being pulled, the damage to the interface caused by pulling is avoided, when the fixing bottom plate 21 is in a fixed state, in order to prevent the cover plate 22 from being separated, thereby achieving a better effect of fixing the circuit board body 1, when the cover plate 22 is buckled with the fixed bottom plate 21, the buckling column 33 at the bottom side of the cover plate 22 can also slide into the inner side of the through column 25, the end part of the buckling column 33 is provided with the connecting hook 35, in order to enable the connecting hook 35 to be buckled with the buckling plate 36 at the inner side of the through column 25, so as to prevent the cover plate 22 from being separated, a user can slide the driving push block 31 on the surface of the cover plate 22, the buckling column 33 is driven to rotate through the meshing action between the driving push block 31 and the gear 32, and further adjust the orientation of the connecting hook 35, when the user pushes the driving push block 31, the connecting hook 35 can slide into the notch of the buckling plate 36, and then when the user releases the driving push block 31, the orientation of the connecting hook 35 can be changed again under the driving of the driving push block 34, so as to fix the cover plate 22, the circuit board body 1 is convenient to install and disassemble, when the length of the circuit board body 1 in the device shell is too long in the installation process, in order to arrange the redundant circuit board body 1, a user can pass the end part of the circuit board body 1 through the through hole 42 formed on the receiving rod 41, then fix the mounting side block 43 at the corresponding position of the inner side of the device shell, the circuit board body 1 can be collected and stored by rotating the receiving rod 41, a ratchet wheel 56 is arranged between the receiving rod 41 and the mounting side block 43, the receiving rod 41 can only rotate around the collecting shaft 44 in one direction through a sliding tooth block 57 arranged in the mounting side block 43, so that the problem of rotation of the circuit board body 1 is avoided, when the circuit board body 1 needs to be removed, the user can push a release rotating sleeve 51 at the end part of the receiving rod 41, the receiving rod 41 slides towards the inner side of the mounting side block 43, a supporting plate 54 compresses a second spring 53, and at the moment, a splicing block 55 at the side surface of the receiving rod 41 is separated from a positioning groove 59 on the ratchet wheel 56, therefore, the accommodating rod 41 can rotate freely again at this time, and the rolled circuit board body 1 is released, on the other hand, when the circuit board body 1 needs to be rolled again, a user needs to rotate the accommodating rod 41 until the splicing block 55 is embedded into the positioning groove 59 again, when a double-layer or even multi-layer circuit board body 1 is used, in order to avoid direct contact between the two layers, and keep a good heat dissipation effect, the user can place the first rotating rod 62 and the second rotating rod 63 between the circuit board bodies 1, and then rotate the first rotating rod 62 and the second rotating rod 63 around the rotating shaft 64 until the second rotating rod 63 is limited by the shaping protrusion 65 arranged on the first rotating rod 62, at this time, the limiting blocks 61 arranged at the end parts of the first rotating rod 62 and the second rotating rod 63 are abutted against the side edges of the circuit board body 1, so as to ensure that the two layers of circuit board bodies 1 at both sides are not abutted against each other, the wiring board body 1 is protected.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.