CN203877664U - Coiling and storing device for flexible circuit board - Google Patents
Coiling and storing device for flexible circuit board Download PDFInfo
- Publication number
- CN203877664U CN203877664U CN201420226959.2U CN201420226959U CN203877664U CN 203877664 U CN203877664 U CN 203877664U CN 201420226959 U CN201420226959 U CN 201420226959U CN 203877664 U CN203877664 U CN 203877664U
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- CN
- China
- Prior art keywords
- reeling
- flexible pcb
- line outlet
- side line
- center shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model relates to the technical field of coiling and storing devices, in particular to a coiling and storing device for a flexible circuit board. The coiling and storing device comprises an upper shell, a lower shell, a rotary disc and a volute spiral spring. The distance between a left wire outlet and a right wire outlet is reduced by shifting the left wire outlet forwards and shifting the right wire outlet backwards, and therefore the size of the whole coiling and storing device is reduced; the included angle between the wire outlet direction and a horizontal line can be reduced through the structure, and therefore friction force of the flexible circuit board in the extension process is reduced, and extension of the flexible circuit board is smooth; furthermore, metal struts for connecting the upper shell with the lower shell are adopted in two stress struts, the strength and the abrasion resistance of the stress struts are improved, the size is reduced, the included angle between the wire outlet direction and the horizontal line is further reduced, and the stress struts are not prone to being broken vertically.
Description
Technical field
The utility model relates to reeling-up reeling-out device technical field, relates in particular to a kind of flexible PCB (be FPC, claim again flexible circuit board) reeling-up reeling-out device.
Background technology
At present, reeling-up reeling-out device is applied in the rolling of the wire rod of the products such as wired earphone, mouse, keyboard, charger conventionally.If China Patent No. is 200620116285.6 disclosed a kind of single free-ended wire rod roll-up apparatus, and China Patent No. is the two free-ended wire rod roll-up apparatus of 200620116284.1 disclosed one.Its principle is, by the scrolling elastic force of volute spiral spring, make wire rod according to spiral path or the rolling of hoop Path generation, and in the time that pull-out is used, rely on outer clip power of volute spiral spring, cause the start of pull-out wire rod, slightly pind down, but this holdback force still can overcome easily, therefore make this type of wire rod receiving, volume all has a trajectory path, and the restraining of the application of force, therefore can furl smoothly and pull out wire rod.
In recent years, some producer is applied to reeling-up reeling-out device the rolling of flexible PCB, different from traditional wire rod roll-up apparatus, it need to roll up what put is wider and flat flexible PCB, for example: be applied in server, one end of flexible PCB is connected in the mainboard of server, hard disk or the circuit card that the other end is connected in server, and the hard disk of server or circuit card are drawing and pulling type structure; In the time that the hard disk of server or circuit card one end are drawn out, the flexible PCB of reeling-up reeling-out device is stretched; In the time that the hard disk of server or circuit card one end are pushed again, reeling-up reeling-out device carries out automatic winding to flexible PCB; So, do the straight-line motion of rolling or stretching in the limited space of machine box for server time, reeling-up reeling-out device can pull out the length of flexible PCB as required, and can keep certain tension force and balancing force when flexible PCB pull-out, make originally longer flexible PCB can with the electronic component of numerous high temperature in narrow space, keep stable safety distance.
Early stage flexible PCB reeling-up reeling-out device, as shown in Fig. 1～4, mainly comprises upper shell 101, lower house 102, rotating disk 103, volute spiral spring 104, disk cover 105.One-body molded under four angles of upper shell 101 have 4 to go up plastic column 101_1, one-body molded 4 lower plastic column 102_1 that have correspondence on four angles of lower house 102, the bottom of upper plastic column 101_1 is provided with flange, is provided with the ring-shaped step mating with flange in the top of lower plastic column 102_1.Lower house 102 center is upwards one-body molded a center shaft 106, and the top of center shaft 106 offers draw-in groove.Rotating disk 103 offers the axis hole corresponding with center shaft 106, the top of rotating disk 103 is provided with the disposal area 103_1 for placing volute spiral spring 104, and the outside of rotating disk 103 is one-body molded bluff piece 107, between the outside of bluff piece 107 and rotating disk 103, form clamping district, clamping district is a bit larger tham the thickness in monolayer of flexible PCB 108.Its installation process is: first, flexible PCB 108 is inserted in to the clamping district of rotating disk 103; Then, volute spiral spring 104 is put into the disposal area 103_1 of rotating disk 103, and volute spiral spring 104 center is blocked by the draw-in groove of center shaft 106; Then, disk cover 105 is fastened on to the top of rotating disk 103; Then the center shaft 106 of, the axis hole of rotating disk 103 being aimed to lower house 102 inserts; Then, the flange of the upper plastic column 101_1 bottom of upper shell 101 is inserted to the ring-shaped step on the lower plastic column 102_1 top of lower house 102, upper shell 101 and lower house 102 are fastened, 4 upper plastic column 101_1 and 4 lower plastic column 102_1 form two plastic columns in left side, two plastic columns on right side, and one end of flexible PCB 108 passes between two plastic columns in left side, the other end passes between two plastic columns on right side; Finally, by modes such as screw lockings, upper shell 101 is fixedly connected with lower house 102.Its flexible principle of work is: in the time of initial condition, flexible PCB 108 is set around the periphery of rotating disk 103; In the time that needs pull out flexible PCB 108, can, by the one or both ends of flexible PCB 108 are pulled, flexible PCB 108 can be stretched, make flexible PCB 108 in extended configuration; Now, as long as decontrol or along with rotating disk 103 freely rotates, rotating disk 103 is understood and be rotated under the scrolling elastic force of volute spiral spring 104, thereby flexible PCB 108 is set around again to the periphery of rotating disk 103, and reply initial condition, makes flexible PCB 108 automatic windings.
The weak point of early stage flexible PCB reeling-up reeling-out device is: 1, as shown in Figure 3, distance (a1) between the right side line outlet 109_2 that the left side line outlet 109_1 that two plastic columns in left side form and two plastic columns on right side form is larger, cause the volume of whole reeling-up reeling-out device larger, and the flexible PCB reeling-up reeling-out device of larger volume is obviously unfavorable for the narrow space of the products such as machine box for server, 2, as shown in Figure 4, left side line outlet 109_1 and right side line outlet 109_2 are that left and right and front and back are symmetrical arranged, and left side line outlet 109_1, right side line outlet 109_2 is all positioned on the horizontal axis 109_3 of rotating disk 103, like this, according to the winding direction of the flexible PCB of Fig. 1 108, in the time of stretching flexible PCB 108, the front side plastic column of left side line outlet 109_1 is the stressed pillar for contact flexible PCB 108 in the time stretching with the rear side plastic column of right side line outlet 109_2, so the tangent line of the inner side of these two stressed pillars and rotating disk 103 is outlet direction 109_4, significantly, said structure cause the outlet direction 109_4 of early stage flexible PCB reeling-up reeling-out device and horizontal angle (b1) larger, friction force while causing flexible PCB 108 flexible is larger, and then stretching has some setbacks, 3, above-mentioned stressed pillar adopts upper plastic column 101_1 and lower plastic column 102_1 to be formed by connecting, and when the tension force up and down that flexible PCB 108 produces when flexible, stressed pillar is easily disconnected up and down, 4, center shaft 106 is formed in one in lower house 102, and at the technical current dark and thin narrow mould withdrawing pattern spatial accuracy that still can not overcome of plastic injection, because the length (being greater than or equaling the width of flexible PCB 108) of center shaft 106 is more than 60 millimeters, so cause the diameter of center shaft 106 cannot be meticulousr and length is longer, its plastics intensity under one-body molded is not high yet, just also limited the material application of center shaft 106, and under the long-term rotation centrifugal action of rotating disk 103, center shaft 106 easily ruptures.
Utility model content
The purpose of this utility model is to provide a kind of small volume for the deficiencies in the prior art, flexible PCB reeling-up reeling-out device smoothly stretches.
The purpose of this utility model realizes by following technical measures: a kind of flexible PCB reeling-up reeling-out device, it includes upper shell, lower house, rotating disk, volute spiral spring, between four jiaos of four jiaos of described upper shell and lower house, be connected with 4 pillars of rectangular arranged, two pillars in left side form left side line outlet, two pillars on right side form right side line outlet, the left side front lateral brace of line outlet and the rear lateral brace of right side line outlet are the stressed pillar for contact flexible PCB in the time stretching, described left side line outlet is partial to the front of the horizontal axis of rotating disk, right side line outlet is partial to the rear of the horizontal axis of rotating disk, the front lateral brace of left side line outlet, the rear lateral brace of right side line outlet is metal mainstay, one end of this metal mainstay is connected in described upper shell, the other end is connected in described lower house.
The utility model beneficial effect is: the utility model by left side line outlet is offset forward, right side line outlet is offset backward, distance between left side line outlet and right side line outlet is reduced, thereby the volume of whole reeling-up reeling-out device is reduced, and, this structure can make outlet direction and horizontal angle reduce, thereby the friction force while making flexible PCB flexible reduces, and makes to stretch smooth and easy; Further, the stressed pillar of the utility model two adopts the metal mainstay that connects upper shell and lower house, make that the intensity of stressed pillar and resistance to abrasion increase, volume reduces, thereby outlet direction and horizontal angle are further reduced, and stressed pillar is not easy to disconnect up and down.
Brief description of the drawings
Fig. 1 is the decomposing schematic representation of early stage flexible PCB reeling-up reeling-out device.
Fig. 2 is the structural representation that early stage flexible PCB reeling-up reeling-out device conceals volute spiral spring and flexible PCB.
Fig. 3 is the birds-eye view of Fig. 2.
Fig. 4 is the birds-eye view of the lower house of early stage flexible PCB reeling-up reeling-out device.
Fig. 5 is decomposing schematic representation of the present utility model.
Fig. 6 is the structural representation that the utility model conceals volute spiral spring and flexible PCB.
Fig. 7 is the structural representation at another visual angle of Fig. 6.
Fig. 8 is the birds-eye view of Fig. 6.
Fig. 9 is the structural representation of rotating disk of the present utility model.
Figure 10 is the structural representation at another visual angle of Fig. 9.
Figure 11 is the birds-eye view of Fig. 9.
Figure 12 is the A-A cutaway view of Figure 11.
Figure 13 is the structural representation of center shaft of the present utility model.
Figure 14 is the structural representation that Fig. 6 conceals upper shell.
Figure 15 is the birds-eye view of Figure 14.
In Fig. 1～4, include:
101---upper shell, 101_1---upper plastic column, 102---lower house, 102_1---lower plastic column, 103---rotating disk, 103_1---disposal area, 104---volute spiral spring, 105---disk cover, 106---center shaft, 107---bluff piece, 108---flexible PCB, 109_1---left side line outlet, 109_2---right side line outlet, 109_3---laterally axis, 109_4---outlet direction;
In Fig. 5～15, include:
1---upper shell, 11---upper plastic column, 2---lower house, 21---lower plastic column, 3---rotating disk, 31---axis hole, 32---disposal area, 4---volute spiral spring, 5---disk cover, 51---through hole, 6---center shaft, 61---draw-in groove, 7---bluff piece, 71---clamping district, 8---flexible PCB, 91---left side line outlet, 911---the front lateral brace of left side line outlet, 912---the rear lateral brace of left side line outlet, 92---right side line outlet, 921---the front lateral brace of right side line outlet, 922---the rear lateral brace of right side line outlet, 93---laterally axis, 94---outlet direction.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described.
Please refer to Fig. 5～15, flexible PCB reeling-up reeling-out device of the present utility model, it includes upper shell 1, lower house 2, rotating disk 3, volute spiral spring 4, between four jiaos of four jiaos of upper shell 1 and lower house 2, be connected with 4 pillars of rectangular arranged, two pillars in left side form left side line outlet 91, two pillars on right side form right side line outlet 92, the left side front lateral brace 911 of line outlet and the rear lateral brace of right side line outlet 922 are that the stressed pillar for contact flexible PCB 8 in the time stretching (is the winding direction according to the flexible PCB of Fig. 58, winding opposite direction with Fig. 1).
Wherein, left side line outlet 91 is partial to the front of the horizontal axis 93 of rotating disk 3, the rear of horizontal axis 93 that right side line outlet 92 is partial to rotating disk 3, by left side line outlet 91 towards central axis direction be offset forward, right side line outlet 92 is offset towards central axis direction backward, makes upper shell 1 and lower house 2 form similar " S " type structure (as shown in Figure 8).Such structure, not only makes the distance (a2) between left side line outlet 91 and right side line outlet 92 reduce, thereby the volume of whole reeling-up reeling-out device is reduced; And as shown in figure 15, the tangent line of the inner side of stressed pillar and rotating disk 3 is milder, outlet direction 94 and horizontal angle (b2) are reduced, thereby the friction force while making flexible PCB 8 flexible reduce, and makes the stretching of flexible PCB 8 smooth and easy.
Further, the front lateral brace 911 of left side line outlet, the rear lateral brace 922 of right side line outlet are metal mainstay, and one end of this metal mainstay is connected in upper shell 1, the other end is connected in lower house 2.Being that metal mainstay is the structure that runs through of wall scroll, is not that two sections are formed by connecting, and metal mainstay can be metal cylinder.Compared with plastics, the intensity of metal mainstay is high, resistance to abrasion good, thereby makes the volume (or diameter) of stressed pillar do littlely, outlet direction 94 and horizontal angle are further reduced, and stressed pillar is not easy to disconnect up and down.
Better one, in the present embodiment, the rear lateral brace 912 of left side line outlet, the front lateral brace 921 of right side line outlet are plastic support, plastic support is formed by connecting with lower plastic column 21 by upper plastic column 11, and upper plastic column 11 is one-body molded with lower house 2 with one-body molded, the lower plastic column 21 of upper shell 1.Two stressed pillars adopt metal mainstay, and other two pillars adopt plastic support, and this plastic support is identical with early stage flexible PCB reeling-up reeling-out device structure.Like this, can be convenient to the production assembling of device.
Certainly, 4 pillars all adopt metal mainstay, and the rear lateral brace 912 of left side line outlet, the front lateral brace 921 of right side line outlet are metal mainstay, and one end of this metal mainstay is connected in upper shell 1, the other end is connected in lower house 2.This scheme is also passable.Adopt the technical scheme of 2 or 4 metal mainstays, all should belong to protection domain of the present utility model.
Better one, the utility model also comprises center shaft 6, and the bottom of center shaft 6 connects and fixes in the center of lower house 2, and center shaft 6 is not to be shaped in lower house 2, but by connecting and fixing, make center shaft 6 not be subject to plastic injection technical limitation, like this, even if the length of center shaft 6 is longer, the diameter of center shaft 6 can do more tinyly and be difficult for presenting bending in the time penetrating technique, and center shaft 6 also can be made for materials such as metals, makes the strength increase of center shaft 6, is not easy fracture.
Wherein, rotating disk 3 offers the axis hole corresponding with center shaft 6 31, makes rotating disk 3 be sheathed on rotationally center shaft 6.The top of rotating disk 3 is snapped with disk cover 5, and disk cover 5 offers through hole 51, and the top of center shaft 6 connects and fixes in the center of upper shell 1 through the through hole 51 of disk cover 5.The top of rotating disk 3 is provided with the disposal area 32 for placing volute spiral spring 4, volute spiral spring 4 is placed in disposal area 32, in addition, when disk cover 5 entangles rotating disk 3 nearly spring region one side, simultaneously also banding rotating disk 3 contained springs produce the side of antagonistic force outside rotating disk 3 while tightly relaxing state, and make it to be difficult for producing the deformation of rotating disk 3 inclined to one side sides.And the outside of rotating disk 3 is one-body molded bluff piece 7, between bluff piece 7 and the outside of rotating disk 3, be configured for the clamping district 71 of clamping flexible PCB 8.The top of center shaft 6 offers draw-in groove 61, and the center of volute spiral spring 4 is connected in the draw-in groove 61 of center shaft 6.
Wherein, the top of center shaft 6 offers the first screw hole, the top, center of upper shell 1 offers the second screw hole mating with the first screw hole of center shaft 6, makes screw can pass successively the second screw hole, the first screw hole, the top of center shaft 6 is fixed on to the center of upper shell 1; The bottom of center shaft 6 offers the 3rd screw hole, the centre bottom of lower house 2 offers the 4th screw hole mating with the 3rd screw hole of center shaft 6, make screw can pass successively the 4th screw hole, the 3rd screw hole, the bottom of center shaft 6 is fixed on to the center of lower house 2.
In sum, the utility model by left side line outlet 91 is offset forward, right side line outlet 92 is offset backward, distance between left side line outlet 91 and right side line outlet 92 is reduced, thereby the volume of whole reeling-up reeling-out device is reduced, and, this structure can make outlet direction 94 and horizontal angle reduce, thereby the friction force while making flexible PCB 8 flexible reduces, and makes to stretch smooth and easy; Further, the stressed pillar of the utility model two adopts the metal mainstay that connects upper shell and lower house, make that the intensity of stressed pillar and resistance to abrasion increase, volume reduces, thereby outlet direction 94 and horizontal angle are further reduced, and stressed pillar is not easy to disconnect up and down.Flexible PCB reeling-up reeling-out device of the present utility model, can be applied in server, and one end of flexible PCB 8 is connected in the mainboard of server, the other end and is connected in the hard disk of server, and the hard disk of server is drawing and pulling type structure; In the time that the hard disk of server is drawn out, the flexible PCB 8 of reeling-up reeling-out device is stretched; In the time that the hard disk of server is pushed again, reeling-up reeling-out device carries out automatic winding to flexible PCB 8; Therefore, in the limited space of machine box for server, be particularly suitable for the feature that the utility model volume is little, and when pulling out, flexible PCB 8 can keep certain tension force and balancing force, make originally longer flexible PCB 8 can with the electronic component of numerous high temperature in narrow space, keep stable safety distance.
Finally should be noted that; above embodiment is only in order to illustrate the technical solution of the utility model; but not restriction to the utility model protection domain; although the utility model has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement the technical solution of the utility model, and not depart from essence and the scope of technical solutions of the utility model.
Claims (10)
1. a flexible PCB reeling-up reeling-out device, it includes upper shell, lower house, rotating disk, volute spiral spring, between four jiaos of four jiaos of described upper shell and lower house, be connected with 4 pillars of rectangular arranged, two pillars in left side form left side line outlet, two pillars on right side form right side line outlet, the left side front lateral brace of line outlet and the rear lateral brace of right side line outlet are the stressed pillar for contact flexible PCB in the time stretching, it is characterized in that: described left side line outlet is partial to the front of the horizontal axis of rotating disk, right side line outlet is partial to the rear of the horizontal axis of rotating disk, the front lateral brace of left side line outlet, the rear lateral brace of right side line outlet is metal mainstay, one end of this metal mainstay is connected in described upper shell, the other end is connected in described lower house.
2. flexible PCB reeling-up reeling-out device according to claim 1, it is characterized in that: the rear lateral brace of described left side line outlet, the front lateral brace of right side line outlet are plastic support, described plastic support is formed by connecting by upper plastic column and lower plastic column, and upper plastic column and one-body molded, the lower plastic column of described upper shell and described lower house one-body molded.
3. flexible PCB reeling-up reeling-out device according to claim 1, it is characterized in that: the rear lateral brace of described left side line outlet, the front lateral brace of right side line outlet are metal mainstay, and one end of this metal mainstay is connected in described upper shell, the other end is connected in described lower house.
4. according to the flexible PCB reeling-up reeling-out device described in claim 2 or 3, it is characterized in that: also comprise center shaft, the bottom of described center shaft connects and fixes the center in described lower house.
5. flexible PCB reeling-up reeling-out device according to claim 4, is characterized in that: described rotating disk offers the axis hole corresponding with described center shaft, makes described rotating disk be sheathed on rotationally described center shaft.
6. flexible PCB reeling-up reeling-out device according to claim 5, it is characterized in that: the top of described rotating disk is snapped with disk cover, described disk cover offers through hole, and the top of described center shaft connects and fixes the center in described upper shell through the through hole of described disk cover.
7. flexible PCB reeling-up reeling-out device according to claim 6, is characterized in that: the top of described rotating disk is provided with the disposal area for placing described volute spiral spring, and the outside of described rotating disk is one-body molded bluff piece.
8. flexible PCB reeling-up reeling-out device according to claim 7, is characterized in that: the top of described center shaft offers draw-in groove, the center of described volute spiral spring is connected in the draw-in groove of described center shaft.
9. flexible PCB reeling-up reeling-out device according to claim 8, is characterized in that: the top of described center shaft offers the first screw hole, the top, center of described upper shell offers the second screw hole mating with the first screw hole of described center shaft; The bottom of described center shaft offers the 3rd screw hole, and the centre bottom of described lower house offers the 4th screw hole mating with the 3rd screw hole of described center shaft.
10. flexible PCB reeling-up reeling-out device according to claim 9, is characterized in that: described metal mainstay is metal cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420226959.2U CN203877664U (en) | 2014-05-05 | 2014-05-05 | Coiling and storing device for flexible circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420226959.2U CN203877664U (en) | 2014-05-05 | 2014-05-05 | Coiling and storing device for flexible circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203877664U true CN203877664U (en) | 2014-10-15 |
Family
ID=51678191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420226959.2U Withdrawn - After Issue CN203877664U (en) | 2014-05-05 | 2014-05-05 | Coiling and storing device for flexible circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203877664U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103950801A (en) * | 2014-05-05 | 2014-07-30 | 东莞达电电子有限公司 | Flexible circuit board reeling and unreeling device |
-
2014
- 2014-05-05 CN CN201420226959.2U patent/CN203877664U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103950801A (en) * | 2014-05-05 | 2014-07-30 | 东莞达电电子有限公司 | Flexible circuit board reeling and unreeling device |
| CN103950801B (en) * | 2014-05-05 | 2017-03-15 | 东莞达电电子有限公司 | Flexible PCB reeling-up reeling-out device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141015 Effective date of abandoning: 20171114 |
|
| AV01 | Patent right actively abandoned |