CN206497729U - A kind of DVD laser heads easy for installation - Google Patents
A kind of DVD laser heads easy for installation Download PDFInfo
- Publication number
- CN206497729U CN206497729U CN201720217996.0U CN201720217996U CN206497729U CN 206497729 U CN206497729 U CN 206497729U CN 201720217996 U CN201720217996 U CN 201720217996U CN 206497729 U CN206497729 U CN 206497729U
- Authority
- CN
- China
- Prior art keywords
- mounting groove
- fixed
- clamping
- lens subassembly
- pedestal
- 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.)
- Expired - Fee Related
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- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Semiconductor Lasers (AREA)
- Optical Head (AREA)
Abstract
The utility model provides a kind of DVD laser heads easy for installation, including thing lens subassembly, pedestal, reflective mirror, spectroscope, photodiode components, laser diode and fin；The thing lens are fixed on the governor assembly；The pedestal is provided with the first mounting groove, the second mounting groove, the 3rd mounting groove, the 4th mounting groove and the 5th mounting groove；The thing lens subassembly is spacing by fixed block clamping, and is fixed on by a screw on the first mounting groove；The photodiode components are fixed on the second mounting groove；The laser diode is fixed in the 3rd mounting groove, and the side cell wall of the 3rd mounting groove is provided with deep gouge, and the fin clamping is fixed on the deep gouge；The reflective mirror is fixed in the 4th mounting groove；The spectroscope is fixed in the 5th mounting groove.Each component of the utility model is fixed by snap fit, and easy for installation simple, production efficiency is high and cost is low.
Description
Technical field
The utility model is related to a kind of DVD laser heads.
Background technology
Laser head is the chief component of CD-ROM drive, the read work of main responsible data.Laser head mainly includes：Laser
Generator（Also known as laser diode）, semi reflective prism, object lens, lens and this several part of photodiode.When laser head is read
When taking the data on disc, the laser light half reflection prism sent from laser generator is converged on object lens, and object lens are by laser
Focus on as ultrafine luminous point and get on CD.Now, the reflecting material on CD will will be irradiated the light of coming
Reflect back, through object lens, then be irradiated on half reflection prism.Now, because prism is semi-reflective structure, therefore light will not be allowed
Beam completely penetrates through it and returned on laser generator, but passes through reflection, through lens, reaches above photodiode.By
It is that record data is come with the uneven point of projection in optical disc surface, so the light reflected will the different direction of directive.People
By the signal definition of directive different directions be " 0 " or " 1 ", what light emitting diode was received be those with " 0 ", " 1 " arrangement
Data, and most at last they parse turn into we required for data.Laser head is accurate device, and installation procedure is various,
And requiring accurate, some parts need to be fixed using many screws, contraposition trouble, therefore production efficiency is relatively low, and easily error.
Utility model content
To solve the above problems, the utility model provides a kind of Stability Analysis of Structures, DVD laser heads easy for installation.
The utility model provides a kind of DVD laser heads easy for installation, including thing lens subassembly, pedestal, reflective mirror, light splitting
Mirror, photodiode components, laser diode and fin.The pedestal is provided with the first mounting groove, the second mounting groove, the 3rd
Mounting groove, the 4th mounting groove and the 5th mounting groove, what first mounting groove was surrounded by some fixed blocks；The thing lens subassembly
It is spacing by the fixed block clamping, and be fixed on by a screw on the first mounting groove；The photodiode components are consolidated
It is scheduled on the second mounting groove；The laser diode is fixed in the 3rd mounting groove, on the side cell wall of the 3rd mounting groove
Provided with deep gouge, the fin clamping is fixed on the deep gouge；The reflective mirror is fixed in the 4th mounting groove；The spectroscope
It is fixed on by a shell fragment clamping in the 5th mounting groove.
In one or more embodiments of the present utility model, the shell fragment includes turn of bilge and convex portion, the turn of bilge hasp
In the spectroscope top surface, the convex portion offsets with spectroscopical side, the shell fragment and the convex portion protrusion direction phase
It is close to the cell wall of the 5th mounting groove in anti-side.
In one or more embodiments of the present utility model, a laser link plate is arranged with the laser diode,
The laser link plate is fixed by the column clamping being arranged on pedestal.
In one or more embodiments of the present utility model, the fin is aluminium alloy.
In one or more embodiments of the present utility model, the fixed block includes four, is divided into the first mounting groove
Corner, the boss towards on the inside of the first mounting groove is set on the fixed block, the thing lens subassembly is provided with and those boss
Corresponding groove, the thing lens subassembly is fixed by the groove with the boss clamping.
In one or more embodiments of the present utility model, in addition to main circuit board, the main circuit board is provided with installation
Hole, by the way that the mounting hole is enclosed on two fixed blocks of homonymy, then is fixed with a screw.
In one or more embodiments of the present utility model, in addition to tabletting, the tabletting is screwed in pedestal
On, for further fixture lens subassembly.
The beneficial effects of the utility model are：Each component of the utility model is fixed by snap fit, easy for installation
Simply, production efficiency is high and cost is low.Especially laser diode need not increase other external members, be directly anchored on pedestal, and
The 3rd mounting groove for installing laser diode is provided with fin, it is ensured that laser diode quick heat radiating, working stability.The thing
Lens subassembly and main circuit board are spacing by fixed block progress clamping, are positioned during installation simple, it is only necessary to which a screw is fixed.
Brief description of the drawings
Fig. 1 is structure decomposition figure one of the present utility model.
Fig. 2 is structure decomposition figure two of the present utility model.
Fig. 3 is structural representation one of the present utility model.
Fig. 4 is structural representation two of the present utility model.
Fig. 5 is the structural representation of shell fragment of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, application scheme is further described：
Referring to Fig. 1-5, a kind of DVD laser heads easy for installation, including thing lens subassembly 1, pedestal 2, reflective mirror 3, light splitting
Mirror 4, photodiode components 5, laser diode 6, fin 7, main circuit board 8 and tabletting 9.
The pedestal 2 is provided with the first mounting groove 21, the second mounting groove 22, the 3rd mounting groove 23, the and of the 4th mounting groove 24
5th mounting groove 25, first mounting groove 21 is surrounded by some fixed blocks 26.
The thing lens subassembly 1 is spacing by the clamping of fixed block 26, and by a screw from the bottom of pedestal 2 through
Top is fastened on the first mounting groove 21 with thing lens subassembly 1；Further, the fixed block 26 includes four, sets up separately
In the boss 261 that the inner side of the first mounting groove of direction 21 is set on the corner of the first mounting groove 21, the fixed block 26, the thing lens
Component 1 is provided with groove 11 corresponding with those boss 261, and the thing lens subassembly 1 passes through the groove 11 and the boss 261
Clamping is fixed.
The photodiode components 5 are fixed on the second mounting groove 22.
The laser diode 6 is fixed in the 3rd mounting groove 23, and the side cell wall of the 3rd mounting groove 23 is provided with
Deep gouge 27, the cell wall of the fin 7 and the deep gouge 27 is offseted, and clamping is fixed on 27 in the deep gouge, and the fin 7 is aluminium alloy
Material.Further, a laser link plate 61 is arranged with the laser diode 6, the laser link plate 61 passes through the side of pedestal 2
On two clampings of column 28 fix.
The clamping of reflective mirror 3 is fixed in the 4th mounting groove 24.
The spectroscope 4 is fixed in the 5th mounting groove 25 by the clamping of a shell fragment 41, and the shell fragment 41 also acts as damping
Effect.The shell fragment 41 includes turn of bilge 411 and convex portion 412, and the turn of bilge 411 snaps over the top surface of spectroscope 4, the convex portion
412 offset with the one side of the spectroscope 4, and the shell fragment 41 side opposite with the protrusion direction of convex portion 412 is close to
The cell wall of five mounting grooves 25.
The main circuit board 8 is arranged under thing lens subassembly 1, and the main circuit board 8 is provided with mounting hole, by the way that this is installed
Borehole jack is fixed on the base 2 on two fixed blocks 26 of homonymy, then with a screw.
The tabletting 9 is Y shapes, and one end is screwed on pedestal 2, and the other end is pressed on thing lens subassembly 1, is used for
Further fixture lens subassembly 1.
It is that above-mentioned preferred embodiment should be regarded as application scheme embodiment for example, all with application scheme thunder
Deduce, replace with, technology that is approximate or making based on this, improving etc., it is regarded as the protection domain of this patent.
Claims (7)
1. a kind of DVD laser heads easy for installation, it is characterised in that including thing lens subassembly, pedestal, reflective mirror, spectroscope, light
Electric diode component, laser diode and fin；
The pedestal is provided with the first mounting groove, the second mounting groove, the 3rd mounting groove, the 4th mounting groove and the 5th mounting groove, institute
State what the first mounting groove was surrounded by some fixed blocks；
The thing lens subassembly is spacing by the fixed block clamping, and is fixed on by a screw on the first mounting groove；
The photodiode components are fixed on the second mounting groove；
The laser diode is fixed in the 3rd mounting groove, and the side cell wall of the 3rd mounting groove is provided with deep gouge, described
Fin clamping is fixed on the deep gouge；
The reflective mirror is fixed in the 4th mounting groove；
The spectroscope is fixed in the 5th mounting groove by a shell fragment clamping.
2. DVD laser heads easy for installation according to claim 1, it is characterised in that the shell fragment includes turn of bilge and convex
Portion, the turn of bilge snaps over the spectroscope top surface, and the convex portion offsets with spectroscopical side, the shell fragment with it is described
It is close to the cell wall of the 5th mounting groove in protrusion direction opposite side in convex portion.
3. DVD laser heads easy for installation according to claim 1, it is characterised in that be arranged on the laser diode
There is a laser link plate, the laser link plate is fixed by the column clamping being arranged on pedestal.
4. DVD laser heads easy for installation according to claim 1, it is characterised in that the fin is aluminium alloy.
5. DVD laser heads easy for installation according to claim 1, it is characterised in that the fixed block includes four, point
Located at the corner of the first mounting groove, set on the fixed block on the boss towards on the inside of the first mounting groove, the thing lens subassembly
Provided with groove corresponding with those boss, the thing lens subassembly is fixed by the groove with the boss clamping.
6. DVD laser heads easy for installation according to claim 5, it is characterised in that also including main circuit board, the main line
Road plate is provided with mounting hole, by the way that the mounting hole is enclosed on two fixed blocks of homonymy, then is fixed with a screw.
7. DVD laser heads easy for installation according to claim 1, it is characterised in that also including tabletting, the tabletting passes through
Screw is fixed on pedestal, for further fixture lens subassembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720217996.0U CN206497729U (en) | 2017-03-07 | 2017-03-07 | A kind of DVD laser heads easy for installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720217996.0U CN206497729U (en) | 2017-03-07 | 2017-03-07 | A kind of DVD laser heads easy for installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206497729U true CN206497729U (en) | 2017-09-15 |
Family
ID=59806341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720217996.0U Expired - Fee Related CN206497729U (en) | 2017-03-07 | 2017-03-07 | A kind of DVD laser heads easy for installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206497729U (en) |
-
2017
- 2017-03-07 CN CN201720217996.0U patent/CN206497729U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170915 Termination date: 20210307 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |