CN101373621A - Bus cable anti-wear apparatus of CD player - Google Patents
Bus cable anti-wear apparatus of CD player Download PDFInfo
- Publication number
- CN101373621A CN101373621A CNA200710141784XA CN200710141784A CN101373621A CN 101373621 A CN101373621 A CN 101373621A CN A200710141784X A CNA200710141784X A CN A200710141784XA CN 200710141784 A CN200710141784 A CN 200710141784A CN 101373621 A CN101373621 A CN 101373621A
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- China
- Prior art keywords
- base plate
- winding displacement
- pallet
- bus cable
- casing
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Abstract
A cable abrasion prevention device of a CD driver is arranged in a housing of the CD driver, wherein the housing has an outlet for allowing a pallet to enter and exit; the front end of the pallet is connected with a panel; a cable has a fixed section and a moving section; the fixed section is fixedly arranged on the housing; the moving section extends in reverse direction from one end of the fixed section to form a folded end; the folded end is fixedly arranged close to the outlet of housing; one end of the moving section is connected with the pallet; a protection bottom plate covers the pallet; the tail end of the protection bottom plate is tilted to form an arc-shaped tail with an arc-shaped edge; a slot is concavely formed on the bottom surface of the protection bottom plate and above the relative moving path of the cable; the width of the slot is slightly larger than that of the cable; and the slot is formed from the rear end of the protection bottom plate to the front end to prevent the cable from being scraped.
Description
Technical field
The relevant a kind of CD player of the present invention is especially about in the thin optical disc machine, in order to prevent to connect pallet and motherboard as electrically connecting and the winding displacement of data transmission the bus cable anti-wear apparatus that is worn.
Background technology
General thin optical disc machine utilizes the pallet and the fixing motherboard of flexible flat cable electric connection activity, the transmission control that the power supply of electronic package on the pallet is provided and reads and writes data.Because the thin optical disc machine thinner thickness, member spacing is very little, and pallet is shift-in or shift out CD player back and forth, and extrusion friction winding displacement in case the breakage of winding displacement epidermis will directly influence the signal transmission, and reduces the reliability of CD player running easily.
As shown in Figure 1, thin type CD player 1 for prior art, casing 2 by a hollow holds motherboard 3 and pallet 4,4 on motherboard and pallet are connected with a winding displacement 5, usually have two kinds as the winding displacement 5 that connects, one is FPC winding displacement (being the printed circuit board (PCB) winding displacement, Flexible Printed Circuit), another kind of is FFC winding displacement (being flexible flat cable, Flexible Flat Circuit).FPC winding displacement thinner thickness but more expensive, with the non-overlap mode setting, though and FFC winding displacement thickness is thicker, cheap and make easily with the overlap mode setting, the trend that replaces the FPC winding displacement is gradually arranged.With the flexible flat cable is example; general winding displacement 5 doublings are stacked; be divided into fixed part 6 and movable part 7; fixed part 6 is positioned at following and cements on pallet 4 inside bottom surface; one end is connected in motherboard 3; the other end is connected in movable part 7; above movable part 7 is positioned at; its other end then is connected to the circuit board 8 of pallet 4 belows; the power supply and the signal transmission control of Spindle Motor 9 on the pallet 4 and read head 10 are provided; below pallet 4, cover the protection base plate 11 of a metal in addition, move with pallet 4, to prevent circuit board 8 electromagnetic interference (EMI).Pallet 4 can freely slide into and skid off casing 2 to play or to change discs 12, utilize Spindle Motor 9 rotating disc sheets 12, radially the moving around of control read head 10 along discs 12, data mark on the writable disc sheet 12, the connection of borrowing winding displacement 5 via circuit board 8 again, data transmission to the motherboard 3 that read head 10 is read carries out signal Processing.
For easy to carry; be used in the thin optical disc machine 1 of notebook computer; certain thickness limits is arranged; protection base plate 11 under the pallet 4; generally be close to the top of winding displacement 5 movable parts 7 and slide, both spacing distances are very little, add and support the guide rail that pallet 4 slides; for pallet 4 can be slided smoothly, guide rail is adopted the looser design that is slidingly matched.Therefore, thin optical disc machine 1 is pushed or when vibrating, often cause protecting the rear end of base plate 11 when pallet 4 pushes, and touches and the surface of scratch winding displacement 5 movable parts 7, injures the lead in the winding displacement 5 in the course of time, influence the CD player signal and transmits.In order to prevent to protect the rear end of base plate 11; touch the surface of flexible flat cable 5 movable parts 7, prior art in addition on the casing 2 of fixing winding displacement 5 fixed parts 6 front ends, is established a groove 13; the folded end of winding displacement 5 is fixed in the groove 13, to increase winding displacement 5 and the layout distance of protecting base plate 11.
Yet prior art not only increases manufacturing cost in the downward stamped recess of casing, and has increased the thickness of thin optical disc machine virtually, and does not conform to the demand that thin optical disc machine is pursued littler thickness.The downward groove that protrudes of prior art also can influence CD player casing surface smoothness simultaneously, more increases the difficulty of handling flatness.Moreover; though groove strengthens the winding displacement folded end and the spacing distance of protection base plate; but groove is not for influencing the too big scope of casing; only can be located at limited range; allow and be not located at the interior winding displacement (as shown by arrows) of groove; still can scrape by protected base plate, thereby and can't prevent fully that winding displacement is by scratch.Therefore, the shoe of conventional optical disc machine winding displacement still has problem to exist, and solution co-pending is arranged.
Summary of the invention
The object of the present invention is to provide a kind of bus cable anti-wear apparatus of CD player,, prevent that winding displacement from suffering scratch, and avoid having influence on casing, to reduce degree of difficulty and the cost of making by on the protection base plate, establishing a shoe.
Another purpose of the present invention is to provide a kind of bus cable anti-wear apparatus of CD player, utilizes groove of indent on the protection base plate, increases the whole spacing of protection base plate and winding displacement, suffers scratch to prevent winding displacement.
Still a further object of the present invention is to provide a kind of bus cable anti-wear apparatus of CD player, utilizes protection base plate tail end to establish a scuff-resistant coating, and the whole spacing of bed hedgehopping protection base plate and winding displacement is suffered scratch to prevent winding displacement.
In order to reach the purpose of aforementioned invention; bus cable anti-wear apparatus of CD player of the present invention; be located in the casing of a CD player; casing has an outlet; for pallet turnover; the pallet front end connects a panel; one winding displacement has fixed part and movable part; fixed part is installed in casing, and movable part oppositely extends to form folded end by an end of fixed part, and folded end is installed near the casing outlet; movable part one end is connected in pallet; one protection base plate is covered in the pallet below, the arc tail on a protection base plate tail end perk formation circular-arc end limit, and a geosynclinal concave is located at protection base plate bottom surface; and be positioned at the relatively move top in path of winding displacement; the width of bar groove is slightly larger than the width of winding displacement, and the rear end by protection base plate arc tail is shaped to the front end by panel.
The bus cable anti-wear apparatus of CD player of another embodiment; be located in the casing of a CD player; casing has an outlet; for pallet turnover; one winding displacement has fixed part and movable part; fixed part is installed in casing; movable part oppositely extends to form folded end by an end of fixed part, and folded end is installed near the casing outlet, and movable part one end is connected in pallet; one protection base plate is covered in the pallet below; protect the perk of base plate tail end, form the arc tail on a circular-arc end limit, a scuff-resistant coating is located near the bottom surface of protection base plate arc tail; and coat arc tail bottom surface, and be positioned at the relatively move top in path of winding displacement.
Description of drawings
Fig. 1 is the sectional side view of prior art CD player.
Fig. 2 is for using the stereographic map of first embodiment of the invention bus cable anti-wear apparatus CD player.
Fig. 3 is the rear isometric view of first embodiment of the invention CD player.
Fig. 4 is near the sectional view the first embodiment of the invention winding displacement folded end.
Fig. 5 is the rear side sectional view of the present invention's second real CD player.
Fig. 6 is the schematic side sectional view of second embodiment of the invention CD player.
The main element symbol description
20 first embodiment CD player
21 casings
22 pallets
23 motherboards
24 winding displacements
25 outlets
26 guide rails
27 Spindle Motors
28 discs
29 read heads
30 circuit boards
31 panels
32 protection base plates
33 arc tails
35 fixed parts
36 movable parts
37 folded ends
40 second embodiment CD player
41 casings
42 pallets
43 winding displacements
44 protection base plates
45 arc tails
46 scuff-resistant coatings
47 folded ends
48 movable parts
Embodiment
Relevant the present invention is for reaching above-mentioned purpose, and technological means that is adopted and effect thereof are now lifted preferred embodiment, and conjunction with figs. is illustrated as follows.
Please also refer to Fig. 2 and Fig. 3, Fig. 2 is for using the CD player 20 of first embodiment of the invention bus cable anti-wear apparatus, and Fig. 3 is the back side of CD player 20.CD player 20 comprises casing 21, pallet 22, motherboard 23 and winding displacement 24.Being mainly pallet 22 freely slides into and skids off casing 21, winding displacement 24 1 ends are connected in the rear end of pallet 22, the other end then connects the motherboard 23 that is located at casing 21 rear ends, pallet 22 is slided into when skidding off casing 21, pallet 22 and the motherboard 23 that is fixed in the casing 21 still can be kept the transmission and the control of signal.
Wherein, casing 21 forms hollow form, and casing 21 front ends have an outlet 25, and a guide rail 26 is respectively established in both sides, and rear side is then established motherboard 23.Pallet 22 two side ends limits are by the support of guide rail 26, can by outlet 25 stretch out or retraction casing 21 in, change or play discs.Pallet 22 centers are provided with a Spindle Motor 27, in order to rotating disc sheet 28.Pallet 22 is provided with a read head 29 in addition, can be along the moving radially of discs 28, with the data on the writable disc sheet 28.A circuit board 30 is established in pallet 22 belows, in order to the running of control Spindle Motor 27 with read head 29.Front end at pallet 22 connects a panel 31 in addition, and the protection base plate 32 that the below of circuit board 30 covers a metal moves with pallet 22, produces electromagnetic interference (EMI) to prevent the precise electronic part on the circuit board 30.Simultaneously, will protect base plate 32 tail ends, as the bending ora terminalis that prevents that circuit board 30 from being clashed into, perk forms the arc tail 33 on a bigger circular-arc end limit.Protection base plate 32 groove 34 that sets to the concave; the width of bar groove 34 is slightly larger than the width of winding displacement 24, and is positioned at relatively move path top of winding displacement 24, and bar groove 34 is by an end of protection base plate 32 arc tails 33; be through to the other end, to constitute shoe of the present invention by panel 31.
In addition, winding displacement 24 of the present invention is the winding displacement of a soft rectangular sheet, is example with the FFC winding displacement, is divided into 36 liang of parts of fixed part 35 and movable part basically.One end of fixed part 35 is connected in motherboard 23, and 35 of remaining fixed parts are towards the directions of outlet 25, and are smooth in the bottom surface of casing 21, and be positioned at bar groove 34 under.The fixed form of fixed part 35 can be and pastes or mode such as rivet clasp, and smooth length is up to nearly outlet 25 places of casing 21, looks closely the distance that pallet 22 moves and decides.36 end extensions that are positioned at casing 21 outlets 25 by fixed part 32 of movable part, reflexed is to casing 21 inside, and start stacked being fixed on the fixed part 35, form a folded end 37,36 of the movable parts that continues are not fixed, and only inwardly are suspended in fixed part 35 tops merely, the other end of last movable part 36 is connected in the rear side of pallet 22, that is connect the circuit board 30 that is positioned at pallet 22 bottoms, and make motherboard 23 via flexible flat cable 24, produce electric connection with circuit board 30.
Please join Fig. 2 again, winding displacement 24 shoes of the present invention are done the time spent, and fixed part 35 smooth being fixed on the casing 21 of winding displacement 24 make folded end 37 near outlet 25, and the end reflexed that pallet 22 traction movable parts 36 connect is overhanging.When pallet 22 pushes casing 21, the winding displacement 24 that reflexed is overhanging, in the traction of folded end 37 guiding and pallet 22 pushers, movable part 36 will lie low on fixed part 35 in regular turn.Near the section folded end 37 as shown in Figure 4; bar groove 34 under the protection base plate 32; the top of winding displacement folded end 37 will be slipped over; bar groove 34 by indent; make protection base plate 32 and winding displacement keep bigger spacing; even pallet pushes casing and is pushed or vibrate; the guide rail of loose fit; allow protection base plate 32 sink (shown in dotted line), the also unlikely bar groove 34 that allows touches winding displacement folded end 37, simultaneously; end by protection base plate 32 arc tails; be through to the bar groove 34 by the panel other end, also can guarantee to protect base plate 32 and winding displacement to keep a determining deviation, avoid winding displacement behind the folded end 37 by scratch.
Therefore, bus cable anti-wear apparatus of CD player of the present invention can increase protection base plate and winding displacement spacing, and from first to last avoid protecting base plate scratch winding displacement by the shoe that is arranged with a groove on the protection base plate.Because the protection base plate is positioned at a slice sheet metal of CD player inside; as long as can cover the pallet below basically; prevent the electronic component on the pallet, circuit board especially, the electromagnetic interference (EMI) that is produced gets final product; for profile and do not require; therefore the present invention is arranged with the bar groove at the protection base plate, removes and can avoid winding displacement to suffer scratch, neither can influence the original function of protection base plate; the CD player casing be can avoid changing again, degree of difficulty and the cost made reduced.
As shown in Figure 5, be the back side of the CD player 40 of using the second embodiment of the invention bus cable anti-wear apparatus.Present embodiment CD player 40 comprises casing 41, pallet 42, motherboard (figure does not show), winding displacement 43, protection base plate 44 and arc tail 45; basically with the connecting structure and the start identical (please join Fig. 2) of the first embodiment CD player, 20 casings 21, pallet 22, motherboard 23, winding displacement 24, protection base plate 32 and arc tail 33; main difference is that the present invention is a scuff-resistant coating 46 in protection base plate 44 set shoes.
This scuff-resistant coating 46 is located near protection rear end, the base plate 44 downside bottom surface arc tail 45, cover arc tail 45 partly and be positioned at winding displacement 43 directly over, scuff-resistant coating 46 is for the coating of abrasionproof material or stick on and protects base plate 44 to be constituted.As shown in Figure 6, for winding displacement 43 shoe effects of the present invention, when pallet 42 pushes casing 41, the winding displacement 43 that reflexed is overhanging, in the traction of folded end 47 guiding and pallet 42 pushers, movable part 48 will lie low on fixed part 49 in regular turn.The scuff-resistant coating 46 that is coated on arc tail 45 bottom surfaces at first contacts folded end 47; by buffering than orthodrome arc tail 45; scuff-resistant coating 46 is reducing under folded end 47 frictions; can slide the movable part 48 on the folded end 47 easily; protection base plate 44 is pressed on the movable part 48 by scuff-resistant coating 46; because scuff-resistant coating 46 has a thickness; the base plate 44 of bed hedgehopping protection simultaneously; and make protection base plate 44 behind scuff-resistant coating 46; maintain the distance of about scuff-resistant coating 46 thickness with winding displacement 43 movable parts 48; allow winding displacement 43 avoid contacting, in order to avoid by scratch with protecting base plate 44.
Therefore, bus cable anti-wear apparatus of CD player of the present invention can be by establishing a scuff-resistant coating at protection base plate tail end; the whole spacing of bed hedgehopping protection base plate and winding displacement; to prevent that winding displacement from suffering scratch, mating protection base plate tail end perk simultaneously strengthens the effect of sliding than the arc tail of great circle cambered surface.Simultaneously, the scuff-resistant coating of bus cable anti-wear apparatus of CD player of the present invention can directly cover or paste suitable thickness one scuff-resistant coating on casing, make easily, and save assembling and manufacturing time, the surface that not only need not change casing, the scuff-resistant coating that thickness is limited also can avoid increasing the thickness of thin type CD player.
The above person, only in order to convenient explanation the preferred embodiments of the present invention, scope of the present invention is not limited to described preferred embodiment, and is all according to any change that the present invention did, and not breaking away under the spirit of the present invention, all belongs to scope of the present invention.
Claims (12)
1. a bus cable anti-wear apparatus of CD player is located in the casing of a CD player, and casing has an outlet, for pallet turnover, comprising:
One winding displacement has fixed part and movable part, and fixed part is installed in casing, and movable part oppositely extends to form folded end by an end of fixed part, and folded end is installed near the casing outlet, and movable part one end is connected in pallet;
One protection base plate is covered in the pallet below; And
, a groove is arranged with in protection base plate bottom surface, and is positioned at the relatively move top in path of winding displacement.
2. bus cable anti-wear apparatus of CD player according to claim 1, wherein stacked being fixed on of this movable part folded end constitutes a FFC winding displacement on the fixed part.
3. bus cable anti-wear apparatus of CD player according to claim 1 wherein should be protected the perk of base plate tail end, formed the arc tail on a circular-arc end limit.
4. bus cable anti-wear apparatus of CD player according to claim 3, wherein this pallet front end connects a panel, and the bar groove is shaped to the front end by panel by the rear end of protection base plate arc tail.
5. bus cable anti-wear apparatus of CD player according to claim 4, wherein the width of this groove is slightly larger than the width of winding displacement.
6. bus cable anti-wear apparatus of CD player according to claim 1 wherein is somebody's turn to do the bar groove of protecting the base plate indent, makes protection base plate and winding displacement keep bigger spacing.
7. a bus cable anti-wear apparatus of CD player is located in the casing of a CD player, and casing has an outlet, for pallet turnover, comprising:
One winding displacement has fixed part and movable part, and fixed part is installed in casing, and movable part oppositely extends to form folded end by an end of fixed part, and folded end is installed near the casing outlet, and movable part one end is connected in pallet;
One protection base plate is covered in the pallet below; And
One scuff-resistant coating is located at protection base plate bottom surface, and is positioned at the relatively move top in path of winding displacement.
8. bus cable anti-wear apparatus of CD player according to claim 7 wherein should be protected the perk of base plate tail end, formed the arc tail on a circular-arc end limit, and scuff-resistant coating is located near the arc tail.
9. bus cable anti-wear apparatus of CD player according to claim 8, wherein this scuff-resistant coating coats arc tail bottom surface.
10. bus cable anti-wear apparatus of CD player according to claim 9, wherein this scuff-resistant coating coats the relatively move arc tail bottom surface of top, path of winding displacement.
11. bus cable anti-wear apparatus of CD player according to claim 1, wherein this scuff-resistant coating is for being coated with or sticking the material with abrasionproof.
12. bus cable anti-wear apparatus of CD player according to claim 1, wherein this scuff-resistant coating has a thickness, and bed hedgehopping protection base plate makes protection base plate and winding displacement keep this thickness distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710141784XA CN101373621A (en) | 2007-08-21 | 2007-08-21 | Bus cable anti-wear apparatus of CD player |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710141784XA CN101373621A (en) | 2007-08-21 | 2007-08-21 | Bus cable anti-wear apparatus of CD player |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101373621A true CN101373621A (en) | 2009-02-25 |
Family
ID=40447736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200710141784XA Pending CN101373621A (en) | 2007-08-21 | 2007-08-21 | Bus cable anti-wear apparatus of CD player |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101373621A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441465A (en) * | 2013-08-29 | 2013-12-11 | 廖承东 | Flexibly telescopic arm device |
-
2007
- 2007-08-21 CN CNA200710141784XA patent/CN101373621A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441465A (en) * | 2013-08-29 | 2013-12-11 | 廖承东 | Flexibly telescopic arm device |
| CN103441465B (en) * | 2013-08-29 | 2016-06-08 | 廖承东 | Movable telescopic arm assembly |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090225 |