TWI681374B - High density vertical magnetic memory medium teaching aid - Google Patents

Abstract

A high density vertical magnetic memory medium teaching aid includes a host, device providing input and output information signal; a platform; a memory medium rotary table, rotatably disposed at the platform and having a through groove disposed along the rotation track of the rotary table; a plurality of magnetic units, vertically and pivotally disposed in the through groove and spaced with each other; and a reading/writing seat, disposed at the platform and signally connected with the host device. The reading/writing seat has a writing head and a reading head. The writing head transforms the information signal into a magnetic field and writes the magnetic field into the magnetic units. The reading head reads the magnetic polar signal of the magnetic units. Therefore, by practically operating, learner is able to understand the reading and writing method of the high density vertical hard disk.

Description

High-density vertical magnetic memory media teaching aids

The present invention relates to a teaching aid, especially a high-density vertical magnetic memory media teaching aid.

Since the invention of the first hard drive (also known as hard drive) by IBM in 1956, the development of the hard drive has been more than fifty years old. However, the invention of the giant magnetoresistive element in 1987 (obtained by Nobel in 2008) Physics Award), improved the design of the hard disk read-write head in 1996, and the design of the vertical memory media, greatly improving the storage density of the hard disk. The hard disk drive is a high-precision industry, which integrates electronic semiconductors, laser optics, precision machinery, magnetic materials and other technologies. It is mainly used for the selection of storage media for computers and related devices.

The hard disk drive mainly has a vertical storage medium magnetic disk that can rotate at high speed, and a magnetic head that can read and write magnetic units of the magnetic unit. When the magnetic head moves closer to the magnetic unit, a current is applied to the magnetic head electromagnet to generate a magnetic field, which can change the magnetic unit. The magnetic information of the magnetic unit of the area is recorded, and the giant magnetic resistance element (GMR) is used on the magnetic head, which is composed of a three-layer structure, the middle layer is a non-magnetic material, the upper and lower layers are magnetic materials, and one of them is a fixed layer that fixes the direction of the magnetic moment One layer is a free layer that can be easily influenced by the external magnetic field, that is, the application of an external magnetic field will change the resistance of the giant magnetoresistive element, resulting in a high resistance state and a low resistance state. Therefore, the magnetization direction of the free layer of the giant magnetoresistive element is different, and different magnetoresistance changes are generated to record "0" and "1" of the binary signal.

With the evolution and development of technology, the aforementioned hard disk drive principle uses giant magnetoresistive elements and vertical memory media design, which results in the continuous increase of the storage information capacity density. However, the principle is not easy for ordinary people or middle school students. Popular teaching aids or modular equipment to enhance students' understanding of the principles of science and technology is a problem to be solved by the present invention.

In order to solve the above-mentioned problems, the present invention discloses a high-density vertical magnetic memory media teaching aid, which is a simple structure and principle, used as a teaching aid for students or related learners, to improve the literacy and cognition of technology, and inspire interest in technology To build the environment and purpose of science and technology teaching.

To achieve the above purpose, the present invention provides a high-density vertical magnetic memory media teaching aid, which includes: a host device for inputting and outputting a data signal; a platform; and a memory media turntable, which is rotatably installed on the platform and the memory media The turntable has an upper surface and a lower surface, and a through slot penetrating the upper surface and the lower surface. The through slot is provided along the rotation path of the storage medium turntable; a plurality of magnetic units are pivotally arranged in the through slot at intervals, and The magnetic poles at the two ends of each magnetic unit are different; and a reading and writing base is provided above the platform and the signal is connected to the host device. The reading and writing base has a write head and a read head. The write head is used to convert the data signal into a magnetic field and It is written in the magnetic unit, and the read head is used to read the magnetic pole signal of the magnetic unit.

Among them, it also includes an iron ring fixed on the platform and corresponding to the lower surface of the turntable of the memory medium, so as to keep the magnetic unit upright in a normal state.

Each magnetic unit is cylindrical, and the magnetic unit has a first color recognition area and a second color recognition area connected with different colors, the ends of the first color recognition area and the second color recognition area A small magnet is embedded in each part, which is a strong magnet and has opposite magnetic poles.

Among them, the memory media turntable is driven by a stepping motor, the stepping motor is set on the platform and the signal is connected to the host device.

Wherein, the storage medium turntable includes a plurality of fixed frames for the magnetic unit to be pivotally mounted thereon and installed and fixed in the slot.

Wherein, the slot includes a first data slot, a second data slot and a third data slot, and there are eight magnetic units in each data slot.

Among them, it further includes a supporting device, which is arranged under the storage medium turntable for rolling contact with the lower surface of the storage medium turntable.

Wherein, the supporting device includes three supporting seats with equiangular rings set on the platform, and a ball on the top of each supporting seat contacts the lower surface.

Among them, the read head is a giant magnetoresistive element (GMR), and the write head is an electromagnet.

Wherein, the host device is a desktop computer or a notebook computer. The host device includes a display interface, and the data signal is output through the display interface and converted into letter characters.

In this way, through the high-density vertical magnetic memory media teaching aids of the present invention, the technical principles of the hard disk drive memory storage can be easily understood in order to enhance learners' interest in technology and to achieve the purpose of auxiliary teaching.

The following describes exemplary embodiments of the present invention in detail with reference to the accompanying drawings, and is not intended to limit the technical principles of the present invention to specific disclosed embodiments, but the scope of the present invention is limited only by the scope of the patent application, covering alternatives, modifications, and Equivalent.

It should be noted that when a unit is said to be "set or fixed" to another element, it may be directly on the other element, or there may be an intermediate element. In contrast, when an element is said to be "directly" on another element, there is no intermediate element.

Please refer to FIGS. 1 to 6, which are high-density vertical magnetic memory media teaching aids of the present invention, which include:

A host device 10 is a desktop computer or a notebook computer. In the embodiment of the present invention, the host device 10 is a desktop computer but is not limited thereto. The host device 10 includes a screen as a display interface 11 for display. The display interface 11 can be converted and input a data signal according to the user inputting letters and characters by using a keyboard, mouse or touch mode, among which the display interface 11 includes three The data areas 12, 13, 14 and the signal display areas 15, 16, 17 corresponding to the data areas 12, 13, and 14. In addition, the display interface 11 further includes a read command 18 and a write fetch command 19, as shown in FIG. 5.

A platform 20 is generally in the form of a table for erection on the ground or a table.

A memory media turntable 30 is in the form of a disk. The memory media turntable 30 is rotatably disposed on the platform 20. The memory media turntable 30 has an upper surface 31 and a lower surface 32, and a wear-through penetrating the upper surface 31 and the lower surface 32 The slot 33 and the slot 33 are provided along the rotation track of the storage medium turntable 30. In the embodiment of the present invention, the slot 33 includes a first data slot 331, a second data slot 332, and a third data slot 333, which are arranged at an equal angle with the center of the memory media turntable 30, and each data slot Eight rectangular fixing frames 34 are provided at each interval (so that the present invention has a total of 24 fixing frames 34). The fixing frames 34 are arranged radially around the center of the storage medium turntable 30.

A plurality of magnetic units 40 are vertically pivoted on the fixed frame 34 and installed in the through slot 33 in sequence. The number of the magnetic units 40 is the same as that of the fixed frame 34. There are eight magnetic units 40 in each data slot. Each magnetic unit 40 is cylindrical and has a first color recognition area 41 and a second color recognition area 42 connected with different colors. The ends of the first color recognition area 41 and the second color recognition area 42 are respectively A small magnet 411, 421 is embedded, which is a powerful magnet, and the first color recognition area 41 is red, and the second color recognition area 42 is blue. The magnets of the two small magnets 411, 421 are very different, for example, the first color recognition The small magnet 411 of the area 41 is an S pole, and the small magnet 421 of the first color recognition area 42 is an N pole.

An iron ring 50 is fixedly mounted on the platform 20 and corresponds to the lower surface 32 of the storage medium turntable 30, that is, at the lower side of the lower surface 32. The iron ring 50 and the small magnets 411 and 421 of the magnetic unit 40 attract each other To keep the magnetic unit 40 upright in a normal state.

A supporting device 60 is disposed under the storage medium turntable 30 for rolling contact with the lower surface 32 of the storage medium turntable 30. In the embodiment of the present invention, the supporting device 60 includes three supporting bases 61 which are equiangular rings disposed on the platform 20. Each supporting base 61 has a ball 62 on the top contacting the lower surface 32. The supporting base 61 is used to support the memory media turntable 30 The weight, and contact with the lower surface 32 of the memory medium turntable 30 through the balls 62 can further reduce the friction between each other.

A stepping motor 70 is installed on the platform 20 and the signal is connected to the host device 10, and the output shaft of the stepping motor 70 is pivotally connected to the center of the storage medium turntable 30, whereby the control signal is output through the host device 10 to start the stepping motor 70, and then the memory media turntable 30 can be driven to rotate at an angle.

A reading and writing base 80 is provided on the platform 20 and the signal is connected to the host device 10. A reading and writing head 81 is suspended at one end of the reading and writing base 80 corresponding to the magnetic unit 40 for converting the data signal into a magnetic field and outputting it to the The magnetic unit 40 reverses the magnetic unit 40 and generates a corresponding magnetic pole. In the embodiment of the present invention, the read/write head 81 includes a write head 82 for writing signals and a read head 83 for reading signals. The read head 83 is a giant magnetoresistive element (GMR), and the write head is an electromagnet.

The writing head 82 is essentially a soft magnet core wound with an induction coil. When a current is applied, an induced magnetic field is generated and a writing magnetic field is formed in the gap portion of the iron core, whereby the writing head 82 corresponds to the small magnet 411 of the magnetic unit 40 At 421, the magnetization direction of the magnetic unit 40 can be changed, so that the magnetic unit 40 can be pivoted selectively, so that the corresponding magnetic pole corresponds to the write head 82, and the information to be stored in memory is written.

The read head 83 is a giant magnetoresistive element (GMR), which generally includes a magnetic fixed layer and a magnetic free layer. The magnetization direction of the magnetic free layer is changed by the change of the small magnets 411 and 421 from the magnetic unit 40, and the magnetic The fixed layer is the magnet layer whose magnetization direction is not affected. Among them, when the magnetic direction of the magnetic free layer matches the magnetic direction of the magnetic fixed layer, it is in a low resistance state, so that the current easily passes through the magnetic layer, and the signal of "1" can be judged. When the magnetic direction of the magnetic free layer is When the magnetic direction of the magnetic pinned layer is reversed, it is in a high-resistance state, which makes it difficult for current to pass, and a "0" signal can be determined, whereby the read/write head 81 can read and write to the magnetic unit 40 Binary signal of "0" or "1".

Please refer to FIG. 1 to FIG. 6, the following further describes the use of the high-density vertical magnetic memory media teaching aids of the present invention:

First, the learner enters alphabetic characters, such as A, B, and C, in the data areas 12, 13, and 14 through the display interface 11 of the host device 10, and then triggers the write command 19 to cause the stepper motor 70 to drive the memory medium. The turntable 30 rotates. At this time, the three English letters in the data input area 12, 13, and 14 are converted into 24-bit character codes (that is, each letter is an 8-bit character code), and the ASCII encoding method is used. The signal display area 15, 16, 17 displays the signal, and displays the corresponding red and blue lights representing the characters of each letter. For example, the color of the light of the letter A is blue red red blue red red, and the following The writing operation of the letter A will be explained.

Then, when the writing operation is performed, that is, the storage medium turntable 30 is driven by the stepping motor 70, and the first magnetic unit 40 of the first data slot 331 passing through the slot 33 corresponds to the read/write head 81. The rotation is stopped. At this time, the magnetic unit 40 is in a state where the first color recognition area 41 is facing upward. Since the host device 10 converts the data signal of the letter A through the writing head 82 into a magnetic field and outputs it to the magnetic unit 40, the The magnetic unit 40 can pivot to the position where the second color recognition area 42 is facing upwards according to the data signal, so that the writing operation is completed, and so on. The memory media turntable 30 continues to operate to the next magnetic unit 40 and write bits Until the data, the storage media turntable 30 stops. Therefore, a letter A is written in 8 times, so that the magnetic units 40 in the slot 33 are arranged in the same color according to the letter A of the letter A. In this way, the learner passes the magnetic field between the writing head 82 and the magnetic unit 40 Change, change the upright state of the magnetic unit 40 to blue or red, and then understand the technical principle that the magnetic disk drive uses the magnetization direction as writing and storing information.

In the reading operation, the host device 10 is used to drive the storage medium turntable 30, so that the reading head 83 sequentially reads the magnetic pole signals of the 24 magnetic units 40, that is, the bit data represented by each magnetic unit 40, and according to the reading The head 83 determines the state of high resistance or low resistance, and then reads the binary signal "0" or "1" of each magnetic unit 40 and displays it in the data area 12, 13, 14 of the host device 10. And displayed in ASCII CODE encoding. For example, when the color of the magnetic unit 40 is blue-red-red-blue-red-red, the bit information of the letter A can be read on the host device 10, thereby enabling Understand the bit information stored in the magnetic unit 40 on the storage medium turntable 30.

In this way, the high-density vertical magnetic memory media teaching aid of the present invention allows learners to operate and experience it through simple and interesting structural devices, and then through the teaching aids, it is easy to understand the technical principles of magnetic disk memory storage In order to enhance learners' literacy and cognition of technology, and to inspire interest in technology, the purpose is to construct an environment for technology teaching and assist teaching.

The above-mentioned embodiments are only used to illustrate the present invention, not to limit the scope of the present invention. Any modification or change that does not violate the spirit of the present invention belongs to the scope of the patent application of the present invention.

10‧‧‧Host device 12, 13, 14 ‧‧‧ data area 18‧‧‧Read instruction 20‧‧‧platform 31‧‧‧Upper surface 33‧‧‧groove 332‧‧‧Second data slot 34‧‧‧Fixed frame 41‧‧‧ First color recognition area 42‧‧‧Second color recognition area 50‧‧‧Iron Ring 61‧‧‧Support 70‧‧‧stepping motor 81‧‧‧Read and write head 83‧‧‧Reading head 11‧‧‧Display interface 15, 16, 17‧‧‧‧Signal display area 19‧‧‧Write instruction 30‧‧‧Memory media turntable 32‧‧‧Lower surface 331‧‧‧First data slot 333‧‧‧ third data slot 40‧‧‧Magnetic unit 411‧‧‧Small magnet 421‧‧‧Small magnet 60‧‧‧Support device 62‧‧‧ball 80‧‧‧Reader 82‧‧‧ Writing

[FIG. 1] It is a schematic diagram of the high-density vertical magnetic memory media teaching aid of the present invention. [FIG. 2] It is a schematic perspective view of the structure of the high-density vertical magnetic memory media teaching aid of the present invention. [Fig. 3] It is a side view of the high-density vertical magnetic memory media teaching aid of the present invention. [FIG. 4] It is a top view of a memory media turntable of the high-density vertical magnetic memory media teaching aid of the present invention. [Fig. 5] It is a schematic diagram of the host of the high-density vertical magnetic memory media teaching aid of the present invention, showing the input state of alphabetic characters. 6 is a schematic diagram of the writing action of the present invention, showing that the magnetic unit pivots relative to the fixed frame.

10‧‧‧Host device

20‧‧‧platform

30‧‧‧Memory media turntable

40‧‧‧Magnetic unit

70‧‧‧stepping motor

80‧‧‧Reader

Claims (10)

A high-density vertical magnetic memory media teaching aid includes: 　　 a host device that provides input and output of a data signal; 　　 a platform; 　　 a memory media turntable, which is rotatably set on the platform, the memory media turntable has an upper surface and A lower surface, and a through-groove penetrating the upper surface and the lower surface, the through-groove is provided along the rotation trajectory of the storage medium turntable; 　　 a plurality of magnetic units, which are pivotally arranged in the through-slot at vertical intervals in sequence, and The magnetic poles at the two ends of each magnetic unit are different; and a read-write base is provided on the platform and the signal is connected to the host device, the read-write base has a read head and a write head, the write head is used to store the data The signal is converted into a magnetic field and written into the magnetic units. The read head is used to read the magnetic pole signals of the magnetic unit. The high-density vertical magnetic memory media teaching aid as described in claim 1 further includes an iron ring fixed on the platform and corresponding to the lower surface of the memory media turntable to keep the magnetic units upright status. The high-density vertical magnetic memory media teaching aid of claim 1, wherein each magnetic unit is cylindrical, and the magnetic unit has a first color recognition area and a second color connected with a different color In the color recognition area, a small magnet is embedded in the ends of the first color recognition area and the second color recognition area, respectively. The high-density vertical magnetic memory medium teaching aid of claim 1, wherein the memory medium turntable is driven by a stepping motor, the stepping motor is installed on the platform and the signal is connected to the host device. The high-density vertical magnetic memory medium teaching aid of claim 1, wherein the memory medium turntable includes a plurality of fixed frames for the magnetic units to be pivotally mounted thereon and fixedly installed in the slot. The high-density vertical magnetic memory media teaching aid according to claim 5, wherein the slot includes a first data slot, a second data slot and a third data slot, and the magnetic unit in each data slot is 8. The high-density vertical magnetic memory media teaching aid of claim 1, further comprising a supporting device disposed under the memory media turntable for rolling contact with the lower surface of the memory media turntable. The high-density vertical magnetic memory media teaching aid of claim 7, wherein the support device includes three support seats equiangular rings disposed on the platform, and a ball on the top of each support seat is in contact with the lower surface. The high-density vertical magnetic memory media teaching aid of claim 1, wherein the reading head is a giant magnetoresistive element (GMR) and the writing head is an electromagnet. The high-density vertical magnetic memory media teaching aid of claim 1, wherein the host device is a desktop computer or a notebook computer, the host device includes a display interface, and the data signal is passed through the display After inputting characters in the interface, it will be converted.

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