CN1306512C - Optical drive that snaps the loading module securely into the case - Google Patents

Abstract

An optical drive comprises a casing, a positioning column fixed on the casing, and a slide module. The slide module comprises a tray which is arranged in the shell in a sliding way, an electromagnetic valve is fixed on the tray, a latch is arranged on one side of the electromagnetic valve, a connecting rod is fixed on the tray in a rotatable way, a hook is fixed on the tray in a rotatable way, a torsion spring is fixed on a fulcrum of the connecting rod, and a compression spring is arranged in a side slide rail of the tray. The first end of the connecting rod is connected to the latch, and the second end of the connecting rod is provided with a groove. The first end of the clamping hook is used for being combined with the positioning column, the second end of the clamping hook is connected with the connecting rod, and one end of the compression spring is fixed in the groove of the connecting rod.

Description

Optical drive that snaps the loading module securely into the case

technical field

The invention relates to an optical drive, in particular to an optical drive capable of firmly snapping and locking a loading module to a casing.

Background technique

Generally, the ejection and locking of the thin-type optical drive module is accomplished by the action of a DC motor or a pull-in solenoid valve. Usually, the DC motor is used as the driving method, and it must be equipped with a gear set, an optical sensor or a limit switch to complete the action. The complexity of the mechanism is high, and the cost cannot be effectively reduced; and the pull-in solenoid valve is used because of its large size. , it may be limited by the space, which may make it impossible to place or affect the appearance of the product, and when the pull-in solenoid valve is not powered, it is not easy to maintain the slide module in a stable state solely by the spring force on the solenoid valve. The following is an optical drive operated by a pull-in solenoid valve.

See Figures 1 through 5. FIG. 1 is a schematic diagram of a conventional optical drive 10 with a loading module 14 in a locked position. FIG. 2 is a schematic diagram of the loading module 14 of the optical drive 10 in a fully ejected position. FIG. 3 is a schematic diagram of the eject mechanism of the optical drive 10 . FIG. 4 is a schematic diagram of the locking mechanism when the loading module 14 of the optical drive 10 is in the locked position. FIG. 5 is a schematic diagram of the locking mechanism when the slide module 14 is in the pop-up position. The optical drive 10 includes a casing 12, a loading module 14, including a tray 16, and an ejection mechanism module 15, which is arranged on the tray 16 and uses the bottom of the casing 12 as a supporting point for ejecting the loading module 14 from the casing. 12 ; a locking mechanism module 21 , which is arranged on the tray 16 and is used for buckling and locking the slide module 14 in the casing 12 . Ejection mechanism module 15 comprises a ejector 18, is arranged on the tray 16 in a slidable manner, a tension spring 20, one end of which is fixed on tray 16, and the other end is fixed on the ejector 18; Locking mechanism module 21 comprises Yes, a solenoid valve 22 is fixed on the tray 16, a mandrel 24 is fixed on the front end of the solenoid valve 22, a solenoid valve spring 26 is set on the mandrel 24 at the front end of the solenoid valve 22, and a hook 28 is fixed by the mandrel 24 At the front end of the solenoid valve 22 , and a positioning point 29 is disposed on the tray 16 .

Please refer to FIG. 3 and FIG. 4 , when the loading module 14 of the optical drive 10 is received in the casing 12, the compression spring 20 will generate a compression due to the tray 16 moving into the casing 12, and this compression will make the ejector 18 have a The pushing force that slide module 14 pushes out. However, when the loading module 14 of the optical drive 10 is received in the casing 12, and the solenoid valve 22 is not powered, the solenoid valve spring 26 will exert a thrust on the hook 28, so that the hook 28 is engaged with the positioning point 29, This prevents the tray 16 from being pushed out of the housing 12 by the pushing force exerted by the ejector 18 on the slide module 14 .

Please refer to FIG. 5 , the ejection of the loading module 14 is achieved through the button 27 (shown in FIG. 1 ) on the panel of the optical drive 10. When the button 27 is pressed, the optical drive 10 sends a set of control signals to the central processing unit. Unit, informing the central processing unit to send another group of control signals to supply power to the solenoid valve 22, when the solenoid valve 22 is supplied with power, the solenoid valve 22 produces a magnetic force change, and produces a suction force on the mandrel 24, which is greater than the solenoid valve spring 26 The pushing force on the hook 28 makes the hook 28 disengage from the positioning point 29 . And when the hook 28 breaks away from the positioning point 29 , the pushing force exerted by the ejector 18 on the loading module 14 will push the tray 16 out of the casing 12 by 15-25mm.

However, the pull-in solenoid valve 22 as shown in FIG. 1 is a straight-pull design. When the pull-in solenoid valve 22 is not energized, the push force of the hook 28 is given by the solenoid valve spring 26 alone. Lock the slide module 14 in the case 12. The disadvantage of this design method is that when the optical drive is being dropped and subjected to shock tests, if a lateral force overcomes the thrust of the spring on the solenoid valve and the hook and positioning column In order to overcome this problem, without changing the design, the solenoid valve spring must be increased to generate greater push-pull force, resulting in an increase in cost and weight.

Contents of the invention

The main purpose of the present invention is to provide an optical drive capable of stably locking the loading module in the casing, so as to solve the above problems.

The object of the present invention is achieved in that a kind of CD-ROM drive comprises:

A casing, on which at least one side slide rail is arranged;

a positioning post, fixed on the casing; and

A loading module, which includes:

A tray is arranged in the casing in a manner capable of sliding along the side slide rail;

A solenoid valve is fixed on the tray and is used to provide magnetic force;

A latch is arranged on one side of the solenoid valve and is used to generate displacement according to the change of the magnetic force of the solenoid valve;

a connecting rod fixed on the tray by rotating around its fulcrum, the first end of the connecting rod is connected to the latch, and the second end of the connecting rod is provided with a groove;

a hook, fixed on the tray in a rotatable manner, its first end is used to combine with the positioning column, and its second end is connected to the second end of the connecting rod;

a torsion spring fixed on the fulcrum of the connecting rod, the first arm of the torsion spring is fixed on the connecting rod, and the second arm is used to push the first end of the hook; and

A compression spring is installed in the tray, and one end of the compression spring is fixed in the groove of the connecting rod.

In a nutshell, the present invention provides an optical drive, which includes a casing, a positioning column fixed on the casing, and a loading module. The slide module includes a tray, which is slidably arranged in the casing, a solenoid valve is fixed on the tray, a latch is arranged on one side of the solenoid valve, and a connecting rod is fixed in a rotatable manner On the tray, a hook is rotatably fixed on the tray, a torsion spring is fixed on the fulcrum of the connecting rod, and a compression spring is installed in the side slide rail of the casing. The first end of the link is connected to the latch, and the second end is provided with a groove. The first end of the hook is used to combine with the positioning post, the second end is connected to the connecting rod, and one end of the compression spring is fixed in the groove of the connecting rod.

Description of drawings

FIG. 1 is a schematic diagram of the loading module of the existing optical drive in the housing;

FIG. 2 is a schematic diagram of the loading module of the optical drive in FIG. 1 when it is completely ejected from the casing;

FIG. 3 is a schematic diagram of the loading module of the optical drive in FIG. 1;

FIG. 4 is a schematic diagram of the loading module of the optical drive of FIG. 1 in the housing;

FIG. 5 is a schematic diagram of the loading module of the optical drive in FIG. 1 when it is ejected from the casing;

6 is a schematic diagram of the loading module of the optical drive of the present invention in the housing;

FIG. 7 is a schematic diagram of the loading module of the optical drive in FIG. 6 when it is completely ejected from the casing;

FIG. 8 is a position diagram of each position of the loading module of the optical drive in FIG. 6 when it is completely ejected from the casing;

Fig. 9 is a position diagram of each mechanism of the optical drive in Fig. 6;

Fig. 10 is a schematic diagram of the rear of the part of the mechanism in which the loading module of the optical drive shown in Fig. 6 is stored in the case;

FIG. 11 is a schematic front view of a part of the mechanism of the loading module of the optical drive shown in FIG. 6 in the housing;

FIG. 12 is a schematic diagram of a solenoid valve and a latch of the optical drive in FIG. 6;

Fig. 13 is a schematic diagram of the connecting rod of the optical drive in Fig. 6;

FIG. 14 is a schematic diagram of the rear of some mechanisms when the loading module of the optical drive in FIG. 6 starts to eject from the casing;

Fig. 15 is a schematic front view of part of the mechanism when the loading module of the optical drive in Fig. 6 starts to eject from the casing;

FIG. 16 is a schematic diagram of the rear of some mechanisms when the loading module of the optical drive in FIG. 6 is completely ejected from the casing;

Fig. 17 is a partial mechanism and a front schematic diagram when the optical drive and the loading module of Fig. 6 are completely ejected from the casing;

Fig. 18 is a schematic diagram of the rear of some mechanisms when the loading module of the optical drive in Fig. 6 is pushed into the casing;

FIG. 19 is a schematic front view of part of the mechanism when the loading module of the optical drive in FIG. 6 is pushed into the casing;

FIG. 20 is a schematic diagram of the rear of some mechanisms when the loading module of the optical drive in FIG. 6 is manually ejected from the casing;

FIG. 21 is a schematic view of the partial mechanism and front view of the optical drive and the slide module in FIG. 6 when the casing is manually ejected.

With this embodiment

See Figures 6 through 13. FIG. 6 is a schematic diagram of the loading module 38 of the optical drive 30 of the present invention being stored in the casing 32 . FIG. 7 is a schematic diagram of the loading module 38 of the optical drive 30 when it is fully ejected from the casing 32 . FIG. 8 is a position diagram of various mechanisms when the loading module 38 of the optical drive 30 in FIG. 6 is fully ejected from the casing 32 . FIG. 9 is a position diagram of various mechanisms of the optical drive 30 . FIG. 10 is a schematic diagram of the rear of the loading module 38 of the optical drive 30 in the housing 32 . FIG. 11 is a schematic front view of the loading module 38 of the optical drive 30 in the housing 32 . FIG. 12 is a schematic diagram of the solenoid valve 46 and the latch 48 of the optical drive 30 . FIG. 13 is a schematic diagram of the connecting rod 52 of the optical drive 30 .

The optical drive 30 includes a casing 32 , which has side slide rails 34 , 36 on the left and right sides thereof, and a loading module 38 is disposed in the casing 32 in a way that can slide along the side slide rails 34 , 36 . The loading module 38 includes a read-write module 40, which is used to read and write data in the optical disc; a tray 44, which is set in the casing 32 in a manner that can slide along the side slide rails 34, 36; a positioning column 50, Fixed on the casing 32; a connecting rod 52 is fixed on the tray 44 in such a way that the fulcrum 51 can be rotated at a small angle, the first end of the connecting rod 52 is connected on the latch 48, and the connecting rod 52 The second end is provided with a groove 53 (marked in Fig. 12), and the second end includes a protruding column 61; a hook 54 is fixed on the tray 44 in a rotatable manner, and the first end is used for aligning with the positioning column 50 are interlocked, and the second end has a groove connected to the stud 61 of the connecting rod 52; a torsion spring 56 is fixed on the fulcrum 51 of the connecting rod 52, and the first arm 55 of the torsion spring 56 is fixed on the connecting rod 52 On, the second arm 57 is used to push the hook 54; and a compression spring 58 is installed in the side slide rail 34, and one end of the compression spring 58 is fixed in the groove 53 of the connecting rod 52.

As shown in Figures 9 and 11, the slide module 38 further includes a solenoid valve 46, which is fixed on the tray 44 for providing magnetic force, and a latch 48, which is located on one side of the solenoid valve 46, for A change in the magnetic force of the valve 46 produces displacement. The solenoid valve 46 includes a coil 60 and a permanent magnet 62. When the coil 60 of the solenoid valve 46 is powered, the coil 60 will generate a magnetic force that resists the magnetic force of the permanent magnet 62 to reduce the force of the permanent magnet 62 to attract the latch 48. power, so that the latch 48 can be moved by an external force without being attracted by the permanent magnet 62; when the coil 60 of the solenoid valve 46 is not powered, the coil 60 will not produce a magnetic force that resists the magnetic force of the permanent magnet 62, and the permanent magnet 62 can hold the latch 48 stably without being moved by external force.

Please refer to Fig. 10 and Fig. 11 again, when the loading module 38 of the optical drive 30 is in the case 32, the coil 60 of the solenoid valve 46 is not powered, and the solenoid valve 46 will attract the latch 48, so that the first connecting rod 52 One end leans against the electromagnetic valve 46, and the second arm 57 of the torsion spring 56 will push the first end of the hook 54 away from the connecting rod 52, and engage with the positioning post 50, so as to resist the compression spring 58 in the slide module 38. The thrust of the slide module 38 is applied to the compression amount when it is received in the casing 32 .

Please refer to FIG. 14 and FIG. 15 . FIG. 14 is a schematic rear view of some mechanisms when the loading module 38 of the optical drive 30 starts to be ejected from the casing 32 . FIG. 15 is a schematic front view of part of the mechanism at the moment when the loading module 38 of the optical drive 30 starts to be ejected from the casing 32 . The ejection of the loading module 38 is achieved through the button 39 on the panel of the optical drive 30. When the button 39 is pressed, the optical drive 30 sends a control signal to the central processing system (CPU) to notify the central processing system (CPU) of this It is necessary to transmit another control signal to supply power to the solenoid valve 46. When the coil 60 of the solenoid valve 46 is powered, the coil 60 can generate magnetic force to offset the magnetic force produced by the permanent magnet 62, so that the solenoid valve 46 no longer attracts the latch 48. , the compression spring 58 will push the connecting rod 52, so that the protruding column 61 pushes the hook 54, so that the first end of the hook 54 rotates and leaves the positioning post 50, and the compression spring 58 will start to push the tray 44 away from the machine. shell32.

Please refer to Figure 16 and Figure 17. FIG. 16 is a schematic back view of part of the mechanism when the loading module 38 of the optical drive 30 is fully ejected from the casing 32 . FIG. 17 is a schematic front view of part of the mechanism when the loading module 38 of the optical drive 30 is fully ejected from the casing 32 . The power-on time of the solenoid valve 46 can be changed due to the design requirements of the optical drive 30. In this embodiment, the power supply time of the solenoid valve 46 is a relatively short time. During the power supply of the solenoid valve 46, the coil 60 of the solenoid valve 46 A magnetic force will be generated to offset the magnetic force of the permanent magnet 62, so that the solenoid valve 46 cannot hold the latch 48, and the compression spring 58 gives a thrust to the connecting rod 52, so that the connecting rod 52 rotates at a small angle along the fulcrum 51. , the protrusion 61 will be linked with the hook 54 to generate a small angle of rotation, so that the first end of the hook 54 leaves the positioning post 50 , and then the compression spring 58 will start to push the slide module 38 away from the casing 32 . When the slide module 38 is pushed away from the casing 32 for a short distance, and the solenoid valve 46 is not powered, the solenoid valve 46 will attract the latch 48, so that the connecting rod 52 is fixed and does not rotate. At this time, the boss 61 will not connect. When the hook 54 is moved, the hook 54 will be pushed by the second arm 57 of the torsion spring 56 to the position shown in FIG. 15 .

Please refer to Figure 16 and Figure 17 again. The moment the slide module 38 starts to eject from the casing 32, the compression spring 58 will give the slide module 38 an outward thrust until the slide module 38 is completely ejected from the casing 32, and the compression spring 58 will gradually recover during this period. its original spring length. When the slide module 38 is fully ejected from the casing 32, the compression spring 58 returns to its original length.

See Figure 16 through Figure 19. FIG. 18 is a schematic rear view of some mechanisms when the loading module 38 of the optical drive 30 is pushed into the casing 32 . FIG. 19 is a schematic front view of part of the mechanism when the loading module 38 of the optical drive 30 is pushed into the casing 32 . When the slide module 38 is fully ejected from the casing 32 and gradually pushed into the casing 32, the solenoid valve 46 is not powered, the solenoid valve 46 can attract the latch 48, and the latch 48 prevents the connecting rod 50 from rotating, and the loading After the chip module 38 is pushed into the casing 32 for a certain distance, the first end of the hook 54 is in contact with the positioning column 50 (shown in FIGS. 18 and 19 ). When the chip module 38 is pushed into the casing 32 further, The hook 54 is pushed away by the positioning post 50 and rotated at a small angle until the first end of the hook 54 completely exceeds the positioning post 50, the hook 54 will hook the positioning post 50, and the compression spring 58 will be in the slide module 38 During pushing in, it is continuously compressed until the hook 54 hooks the positioning post 50, and the loading module 38 is completely moved into the housing 32. At this time, the compression spring 58 has the maximum compression, and continues to apply the loading module. Module 38 - an outward thrust.

Please refer to Figure 20 and Figure 21. FIG. 20 is a schematic back view of some mechanisms when the loading module 38 of the optical drive 30 is manually ejected from the casing 32 . FIG. 21 is a schematic front view of part of the mechanism when the loading module 38 of the optical drive 30 is manually ejected from the casing 32 . The manual ejection of the loading module 38 is achieved through a needle piercing the small hole 31 (shown in FIG. 6 ) on the panel of the optical drive 30. At this time, the solenoid valve 46 is not powered, and the solenoid valve 46 will hold the latch 48, The latch 48 keeps the connecting rod 50 from rotating. When the needle pushes the hook 54, it will push the hook 54 to rotate a small angle, so that the first end of the hook 54 leaves the positioning post 50 and does not engage with it. The first end of the hook 54 is not engaged with the positioning post 50 , and the pushing force exerted by the compression spring 58 on the slide module 38 will push the slide module 38 away from the casing 32 by about 15-25 mm.

Compared with the prior art, the optical drive 30 of the present invention uses the characteristics of the solenoid valve itself, and the simple mechanism components can make the loading module 38 of the optical drive 30 stably in the locked position, so it can solve the problems that cannot be solved in the prior art. The problem of effectively locking the slide module 14 in the casing 12, and the interdependence of each mechanism component is low, so the accuracy of each component is not high, and the error caused by assembly can be reduced. Excellent quality and cost control have obvious benefits, and it is indeed an optical drive design with simple mechanism, stable operation and beautiful product.

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the claims of the present invention shall fall within the scope of the patent of the present invention.

Claims (5)

1. CD-ROM drive, it includes:

One casing which is provided with at least one wood side-guide;

One reference column is fixed on the casing; And

One carrier sheet module, it comprises:

One pallet is being located in this casing along the mode that this wood side-guide slides;

One solenoid valve is fixed on this pallet, is used to provide magnetic force;

One breech lock is located at a side of this solenoid valve, is used for producing displacement according to the magnetic force change of this solenoid valve;

One connecting rod, adopting with its fulcrum is that the mode that rotate at the center is fixed on this pallet, and first end of this connecting rod is connected on this breech lock, and second end of this connecting rod is provided with a groove;

One trip is fixed on this pallet in rotating mode, and its first end is used for combining with this reference column, and second end is connected in the second end place of this connecting rod;

One torque spring is fixed on the fulcrum of this connecting rod, and the first arm of this torque spring is fixed on this connecting rod, and second arm is used for promoting first end of this trip; And

One compression spring is installed in the pallet, and an end of this compression spring is fixed in the groove of this connecting rod.

2. CD-ROM drive as claimed in claim 1, wherein this solenoid valve comprises a permanent magnet and a coil, and when this coil was not powered, this solenoid valve can hold this breech lock, make first end of this connecting rod rely on this solenoid valve, and second arm of this torque spring can push away first end of this trip this connecting rod; When this coil is powered, this coil can produce magnetic force and offset the magnetic force that this permanent magnet produces, make this solenoid valve no longer hold this breech lock, this compression spring can promote this connecting rod, this connecting rod can make first end of this trip rotate and leave this reference column, so that this compression spring pushes away this casing with this pallet.

3. CD-ROM drive as claimed in claim 1, wherein first end of this connecting rod is connected in this breech lock in the mode that fastens, and second end of this connecting rod is connected in this trip in the mode that fastens.

4. CD-ROM drive as claimed in claim 3, second end of this connecting rod includes a protruded stigma, is connected in this trip in the mode that fastens.

5. CD-ROM drive as claimed in claim 1, wherein this trip is a L type trip, first end of this trip is an outward extending tongue-shaped projection, is used for this reference column of hook.

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