Magnetic head, magnetic head driving module, magnetic storage device, and electronic device

Abstract

The application discloses a magnetic head, a magnetic head driving module, a magnetic storage device and an electronic device. The magnetic head comprises an insulating dielectric layer and a device layer embedded in the insulating dielectric layer, and the device layer comprises a plurality of groups of magnetic head device groups. Each group of magnetic head device groups is sequentially arranged in a first direction and is arranged in one-to-one correspondence with a plurality of parallelly arranged data bands of a magnetic storage medium. In this way, when the magnetic head and the magnetic storage medium are coupled to work, the plurality of groups of magnetic head device groups can synchronously access the corresponding data bands without moving the magnetic head, so that the influence of the magnetic head on the positioning of the magnetic storage medium can be avoided, the reading and writing efficiency and the data reading and writing accuracy can be effectively improved. In addition, the positioning algorithm and the corresponding functional structure of the magnetic head can be simplified, and the design cost can be reasonably controlled. Furthermore, the space required for the magnetic head access movement is not reserved internally, the occupancy of the internal space of the device can be reduced, and the space utilization and the capacity density of the storage space of the magnetic tape storage device can be improved.

Description

Technical Field

[0001] This application relates to the field of data storage technology, and in particular to a magnetic head, a magnetic head drive module, a magnetic storage device, and an electronic device. Background Technology

[0002] With the rapid development of computing and storage, magnetic storage media have become widely used. In related technologies, magnetic head chips are equipped with a magnetic head device group, which corresponds to a data band on the magnetic storage medium side. Data is read or written by accessing the corresponding track on the data band side through the magnetic head device. Storage capacity and read / write efficiency are important indicators characterizing the performance of magnetic storage.

[0003] Taking magnetic tape storage devices as an example, the magnetic medium layer of the magnetic tape includes multiple data tapes, which are arranged sequentially along the width of the tape. When the magnetic head is coupled to the tape, the tape moves relative to the head along the reel direction, allowing the head of the head drive module to access the data tapes. Simultaneously, the head drive module can move the head along the width of the tape, enabling effective access to each data tape. The thickness of the magnetic tape storage device is related to the travel distance of the head when accessing each data tape. For N data tapes, the head needs to move N-1 times to access all N data tapes, thus hindering effective improvement in read / write efficiency. Furthermore, the head travel height occupies space in the thickness direction of the casing, creating a bottleneck in the miniaturization of magnetic storage devices. Utility Model Content

[0004] This application provides a magnetic head, a magnetic head drive module, a magnetic storage device, and an electronic device. Through structural optimization, the space occupied by the magnetic head can be reasonably controlled while effectively improving the magnetic head access efficiency and data read / write accuracy.

[0005] The first aspect of this application provides a magnetic head adapted to a magnetic storage medium. The magnetic head includes an insulating dielectric layer and a device layer embedded in the insulating dielectric layer. The device layer includes multiple sets of magnetic head device groups, each set of which is sequentially arranged adjacent to each other in a first direction and corresponds one-to-one with multiple parallel data bands of the magnetic storage medium. With this configuration, when the magnetic head is coupled to the magnetic storage medium, taking magnetic tape as an example, the magnetic tape moves relative to the magnetic head along the reel direction. The read / write operations on the corresponding data bands can be completed through the multiple sets of magnetic head device groups, each corresponding to a data band on the magnetic tape side. Based on the magnetic head device architecture where each set of magnetic head device groups corresponds one-to-one with a data band, access to all data bands can be achieved without moving the magnetic head. This avoids the influence of the magnetic head's positioning on the magnetic storage medium, effectively improving read / write efficiency.

[0006] In addition, based on multiple sets of magnetic head devices, access to each data band on the magnetic storage medium can be realized simultaneously, which can avoid the impact of movement positioning accuracy on the accurate access of data and improve the data read and write accuracy. At the same time, all data bands can be accessed without moving the magnetic head, which can further simplify the positioning algorithm of the magnetic head and has good designability.

[0007] Furthermore, compared to solutions where the magnetic head needs to move to access the entire data tape, when the magnetic head is coupled with the magnetic storage medium, the embodiments of this application do not require driving the magnetic head to move along the parallel arrangement direction of the data tape. The internal space of the magnetic tape storage device does not need to be reserved for the magnetic head access movement, which can further reduce the space occupied inside the device, effectively improve the space utilization of the magnetic tape storage device, and provide technical support for further improving the capacity density of storage space in real-world scenarios.

[0008] Based on the first aspect, this application also provides a first implementation of the first aspect: the magnetic head device group is provided in four groups, and the four groups of magnetic head device groups are arranged sequentially adjacent to each other in one direction. In practical applications, the size of the magnetic head in the first direction can be reasonably controlled, which meets the design requirements of the trend of miniaturization.

[0009] For example, the size of the read / write head in the first direction can be 22.65 mm, which is less than the thickness of a 3.5-inch disk and can meet the application requirements of a 3.5-inch disk.

[0010] Based on the first aspect, this application also provides a second implementation method for the first aspect: six sets of magnetic head device groups are arranged sequentially adjacent to each other in one direction. This allows for selective configuration according to the needs of different application scenarios, providing good adaptability.

[0011] Based on the first aspect, this application also provides a third implementation of the first aspect: a magnetic head device group includes multiple magnetic head devices, and the multiple magnetic head devices are spaced apart in a first direction to form a magnetic head device array. In this way, the number of magnetic head devices in each group can be consistent with the number of tracks in the corresponding data band, and the magnetic head devices are spaced apart in the first direction to form a magnetic head device array, thereby realizing independent access to each track of the data band.

[0012] For example, the head device group may include thirty-two head devices.

[0013] Based on the third implementation of the first aspect, this application also provides a fourth implementation of the first aspect: the magnetic head device group further includes two servo read heads, which are located at both ends of the magnetic head device group in the first direction. That is, the two servo read heads are located at both ends of the magnetic head device array, respectively, and are used to read servo information in the servo track on the magnetic tape to achieve precise positioning of the magnetic head.

[0014] In practical applications, the servo information stored in the servo track may include, but is not limited to, synchronization markers, track numbers, position error signals, and other information.

[0015] A second aspect of this application provides a magnetic head drive module. The magnetic storage device includes a base and a magnetic head disposed on the base. The magnetic head is the magnetic head described above.

[0016] In practical applications, the magnetic head can be configured with three heads: a first write head, a read head, and a second write head, spaced apart along a second direction that intersects with the first direction. The first and second write heads convert electrical signals into magnetic signals and write them to the magnetic storage medium on the magnetic tape side, thus achieving data writing. The read head converts the magnetic signals on the magnetic storage medium into electrical signals, thus achieving data reading. In this way, based on a magnetic head drive module architecture including two write heads and one read head, bidirectional read / write and corresponding verification can be achieved. For example, but not limited to, after the first write head completes data writing, the read head can read the written data from the magnetic tape side, and the accuracy of the write operation can be verified by comparing the consistency between the written and read data.

[0017] A third aspect of this application provides a magnetic storage device, which includes a housing, a magnetic storage medium and a magnetic head drive module disposed within the housing, the magnetic storage medium including a plurality of data bands arranged in parallel, and the magnetic head drive module employing the magnetic head drive module as described above.

[0018] For example, the magnetic storage device is a magnetic tape storage device, which includes two magnetic tape reels, the magnetic storage medium being magnetic tape wound on the magnetic tape reels, and multiple data tapes arranged in parallel in the width direction of the magnetic tape.

[0019] In practical applications, two adjacent data bands may have a gap in the width direction, or two adjacent data bands may have no gap in the width direction.

[0020] Other examples include a magnetic storage device that is a mechanical hard disk, a magnetic storage medium that is a disk, and multiple data strips that are arranged in parallel radially on the disk body.

[0021] A fourth aspect of this application provides an electronic device including a magnetic storage device, wherein the magnetic storage device employs the magnetic storage device described above.

[0022] For example, the electronic device can be an electronic device with storage devices, such as a server, switch, or data center. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a magnetic tape storage device provided in an embodiment of this application;

[0024] Figure 2 for Figure 1 View A in the middle;

[0025] Figure 3 A schematic diagram of a magnetic tape structure provided in an embodiment of this application;

[0026] Figure 4 This is a schematic diagram of the structure of a magnetic head provided in an embodiment of this application;

[0027] Figure 5 for Figure 4 The diagram shows the compatibility between the magnetic head and the magnetic tape.

[0028] Figure 6 for Figure 4 Enlarged view of section C in the image;

[0029] Figure 7 This is a schematic diagram of another magnetic head structure provided in an embodiment of this application;

[0030] Figure 8 for Figure 7 The diagram shows the compatibility between the magnetic head and the magnetic tape.

[0031] Figure 9 A schematic diagram illustrating the compatibility between the magnetic head and the magnetic tape of another magnetic tape storage device provided in this application embodiment;

[0032] Figure 10 A schematic diagram illustrating the adaptation relationship between the read / write head and the disk of a mechanical hard disk, provided for an embodiment of this application;

[0033] Figure 11 This is a schematic diagram of an electronic device provided in an embodiment of this application. Detailed Implementation

[0034] This application provides a chip architecture implementation scheme for a magnetic head. Through structural optimization, the access efficiency of the magnetic head can be effectively improved, while the space occupied by the magnetic head can be reasonably controlled, providing technical support for reducing the space occupied by magnetic storage devices.

[0035] In the field of magnetic storage, storage capacity and read / write efficiency are important indicators characterizing magnetic storage performance. With the rapid development of computing and storage, magnetic storage media have been widely used in the backup storage of electronic data, such as, but not limited to, hard disk drives (HDDs) and magnetic tape disks.

[0036] A head device array is configured on the head chip side, corresponding to a data band on the magnetic storage medium side. Data is read or written by accessing the corresponding track on the data band side through the head device. In related technologies, the magnetic medium layer on the magnetic storage medium side includes multiple parallel data bands, such as multiple turns of data bands arranged on the surface of an HDD disk or multiple data bands arranged on the surface of a magnetic tape.

[0037] Please see Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 This is a schematic diagram of the structure of a magnetic tape storage device provided in an embodiment of this application. Figure 2 for Figure 1 View A in the middle, Figure 3 This is a schematic diagram of the structure of a magnetic tape provided in an embodiment of this application.

[0038] Take magnetic tape storage device 100 as an example. Figure 1 As shown, the magnetic tape storage device 100 includes a housing 50, and two magnetic tape reels 10 and a head drive module 20 disposed within the housing 50. The head drive module 20 includes a base 2 and a head 1 (read / write head) disposed on the base 2. The magnetic tape reel 10 is a rotating disc that rotates under the drive of a drive component (not shown in the figure), driving the magnetic tape 30 coiled and stored on the magnetic tape reel 10 to move forward or backward. The movement trajectory of the magnetic tape can be controlled by a roller 40. For example, but not limited to, clockwise rotation of the two magnetic tape reels 10 can realize the forward movement of the magnetic tape 30, and correspondingly, counterclockwise rotation of the two magnetic tape reels 10 can realize the backward movement of the magnetic tape 30. The tape bearing surface (TBS) on the head 1 side can be coupled to the tape body so that the head 1 can access the data band on the magnetic tape 30.

[0039] In other possible implementations, the two magnetic tape reels 10 can rotate in the same direction to achieve the forward or backward movement of the magnetic tape 30. Of course, the two magnetic tape reels 10 can also rotate in opposite directions to achieve the forward or backward movement of the magnetic tape 30. This application does not limit the implementation.

[0040] The magnetic tape 30 is a strip-shaped magnetic recording medium, comprising a substrate and a magnetic medium layer disposed on the substrate. The magnetic medium layer is a recording layer used to record signals with magnetized patterns. For example... Figure 2 As shown, multiple data tapes are arranged sequentially along the width direction of the magnetic tape 30. For example, the magnetic tape 30 shown in the figure includes four data tapes, data tape 0, data tape 1, data tape 2 and data tape 3 are arranged sequentially along the width direction of the magnetic tape 30.

[0041] In a specific implementation, based on the magnetic medium layer disposed on the substrate, the magnetic tape 30 can be a vertical recording type magnetic recording medium or a longitudinal recording type magnetic recording medium.

[0042] In a typical related technology, during read / write operations, the long, strip-shaped magnetic tape 30 moves longitudinally relative to the magnetic head 1 so that the magnetic head 1 of the head drive module 20 can access the data tapes on the tape 30. Simultaneously, the head drive module 20 can drive the magnetic head 1 to move along the width of the tape, achieving effective access to each data tape (data tape 0, data tape 1, data tape 2, and data tape 3); that is, the magnetic head 1 requires a certain travel distance to sequentially access each data tape. In other words, the head drive module can drive the magnetic head to move along the width of the tape (the direction in which multiple data tapes are arranged in parallel) to achieve access to each data tape.

[0043] In the case where the magnetic head 1 moves to access the magnetic tape in the width direction, the thickness D of the magnetic tape storage device 100 is directly related to the travel distance of the magnetic head 1 in the width direction of the magnetic tape 30. Figure 2 Taking the four data bands shown as an example, the head 1 needs to move three times to complete the access to the four data bands. For example, moving from data band 0 to data band 3 and / or moving from data band 3 to access data band 0. The maximum movement and access stroke includes at least the width of three data bands.

[0044] The magnetic head 1 accesses each data band on the magnetic tape side (or disk side) in sequence. On the one hand, this limits the effective improvement of read and write efficiency. On the other hand, the movement of the magnetic head occupies the layout space in the thickness direction of the housing, which creates a bottleneck in the miniaturization of magnetic tape storage devices. This results in low space utilization of magnetic tape storage devices and correspondingly low storage capacity density in application scenarios.

[0045] For HDDs, the movement of the read / write head to access multiple data bands on the disk side (not shown in the figure) also requires configuration to ensure that the travel distance of each data band is sufficient for sequential access.

[0046] Based on this, embodiments of this application provide a magnetic head for accessing multiple data strips of a magnetic storage medium. The magnetic head includes a device layer embedded in an insulating dielectric layer. The device layer includes multiple sets of magnetic head device groups, each set of which is sequentially arranged adjacent to each other in a first direction and corresponds one-to-one with a data strip of the magnetic storage medium. Here, "first direction" refers to the direction in which the magnetic head device groups are arranged adjacent to each other, and this first direction can be consistent with the parallel arrangement direction of the multiple data strips on the magnetic storage medium side. For a magnetic tape wound on a magnetic reel, multiple data strips arranged on the surface of the tape are arranged in parallel in the tape width direction. For an HDD disk, multiple turns of data strips arranged on the surface of the disk are arranged in parallel in the disk radial direction.

[0047] With this configuration, when the magnetic head is coupled to the magnetic storage medium (taking magnetic tape as an example), the magnetic tape moves relative to the magnetic head along the reel direction. Multiple sets of magnetic head devices, each corresponding to a data tape on the magnetic tape side, can complete the read / write operations on the corresponding data tape. Based on this head device architecture where each head device set corresponds to a data tape, access to all data tapes can be achieved without moving the magnetic head. This avoids the impact of the magnetic head's positioning on the magnetic storage medium, effectively improving read / write efficiency.

[0048] In addition, based on multiple sets of magnetic head devices, access to each data band on the magnetic storage medium can be realized simultaneously, which can avoid the impact of movement positioning accuracy on the accurate access of data and improve the data read and write accuracy. At the same time, all data bands can be accessed without moving the magnetic head, which can further simplify the positioning algorithm of the magnetic head and has good designability.

[0049] Furthermore, compared to solutions where the magnetic head needs to move to access the entire data tape, when the magnetic head is coupled with the magnetic storage medium, the embodiments of this application do not require driving the magnetic head to move along the parallel arrangement direction of the data tape. The internal space of the magnetic tape storage device does not need to be reserved for the magnetic head access movement, which can further reduce the space occupied inside the device, effectively improve the space utilization of the magnetic tape storage device, and provide technical support for further improving the capacity density of storage space in real-world scenarios.

[0050] To better understand the technical solution and effects of this application, specific embodiments are described in detail below with reference to the accompanying drawings. Please refer to... Figure 4 and Figure 5 ,in, Figure 4 This is a schematic diagram of the structure of a magnetic head provided in an embodiment of this application. Figure 1 The perspective shown in the B direction is formed. Figure 5 for Figure 4 The diagram shows the compatibility between the magnetic head and the magnetic tape.

[0051] For ease of description, the plane where the magnetic tape contact surface TBS is located is used as the reference plane, and two different extension directions are defined: the first direction X and the second direction Y. In this case, each magnetic head device group of magnetic head 1 is arranged adjacent to each other in the first direction X.

[0052] like Figure 4 As shown, the magnetic head 1 includes an insulating dielectric layer 1a and a device layer 1b, with the magnetic head device assembly 11 embedded in the insulating dielectric layer 1a. The insulating dielectric layer 1a and the device layer 1b can be stacked on a substrate layer (not shown in the figure), and can be implemented using existing technologies, which will not be elaborated here.

[0053] In this embodiment, the device layer 1b of the magnetic head 1 includes four sets of magnetic head device groups 11: a first magnetic head device group 11-0, a second magnetic head device group 11-1, a third magnetic head device 11-2, and a fourth magnetic head device 11-3. In the first direction X, the first magnetic head device group 11-0, the second magnetic head device group 11-1, the third magnetic head device 11-2, and the fourth magnetic head device 11-3 are arranged adjacent to each other in a sequential manner, and this arrangement is consistent with the width direction of the data tapes (data tape 0, data tape 1, data tape 2, and data tape 3) of the magnetic tape 30. It should be understood that this consistent arrangement direction means that during the movement of the magnetic tape, each magnetic head device group can synchronously access the corresponding data tape. In specific implementations, this includes the case where the sequential arrangement direction of each magnetic head device group of the magnetic head 1 is completely consistent with the tape width direction, and also the case where the sequential arrangement direction of each magnetic head device group of the magnetic head 1 satisfies the positional tolerance requirements of the tape width direction.

[0054] In this configuration, each magnetic head device group 11 is configured to correspond one-to-one with a data tape. That is, in the first direction X, the center-to-center spacing of each magnetic head device group 11 on the magnetic head 1 side is the same as the center-to-center spacing of each data tape on the magnetic tape 30 side, so that the magnetic head devices of the magnetic head device group 11 can perform read and write operations on the tracks (not shown in the figure) of the corresponding data tapes.

[0055] Combination Figure 5 As shown, when the magnetic head 1 is coupled to the magnetic tape 30, the magnetic tape 30 moves relative to the magnetic head 1 in the direction indicated by arrow E in the figure. Specifically, the first magnetic head device group 11-0 corresponds to data tape 0, the second magnetic head device group 11-1 corresponds to data tape 1, the third magnetic head device 11-2 corresponds to data tape 2, and the fourth magnetic head device 11-3 corresponds to data tape 3. Thus, by using four groups of magnetic head devices 11, each corresponding to a data tape on the magnetic tape 30 side, the read and write operations on the corresponding data tapes are completed.

[0056] During the movement of the magnetic tape 30 relative to the magnetic head 1, the magnetic head device group 11, which is set up one-to-one with the data tape, is accessed synchronously. In this way, the entire data tape can be accessed without the magnetic head 1 moving, effectively avoiding the influence of the magnetic head 1's access and positioning on the magnetic tape. The reading and writing efficiency and data reading and writing accuracy are effectively improved, and the positioning algorithm of the magnetic head 1 can be simplified.

[0057] In addition, compared with the implementation scheme that requires the magnetic head to move to complete the access to the entire data tape, the embodiment of this application no longer needs to drive the magnetic head 1 to move along the parallel arrangement direction of the data tape. The interior of the housing 50 does not need to reserve space for the magnetic head access movement stroke, which can further reduce the space occupied by the magnetic tape storage device, effectively improve the space utilization of the magnetic tape storage device, and thus improve the capacity density of the storage space in the actual scenario.

[0058] In a specific implementation, each head device group 11 may include multiple head devices 111, please refer to [the relevant documentation]. Figure 6 The image is Figure 4 The enlarged view of section C is shown. The number of magnetic head devices 111 in each group of magnetic head devices 11 can be consistent with the number of tracks in the corresponding data tape, and they are arranged at intervals in the first direction X to form an array of magnetic head devices 111. It can be understood that the air gap opening (not shown in the figure) of each magnetic head device 111 is located at the magnetic tape contact surface TBS.

[0059] For example, but not limited to, the magnetic head device group 11 may include thirty-two magnetic head devices 111, corresponding to the tracks of the data tape on the magnetic tape side 30 to realize thirty-two channels of data reading and writing. It should be understood that the number of magnetic head devices 111 included in the magnetic head device group 11 can be determined according to the overall product design requirements, and the embodiments of this application do not limit it.

[0060] Furthermore, each head device group 11 may include two servo read heads 112, which are located at both ends of the head device 111 array, i.e., at both ends of the head device group 11 in the first direction X. Similarly, the air gap opening (not shown in the figure) of each head device 111 is located on the magnetic tape contact surface TBS. The servo read heads 112 are used to read servo information in the servo track on the magnetic tape 30 to achieve precise positioning of the head 1. Here, the servo information stored in the servo track may include, but is not limited to, synchronization markers, track numbers, position error signals (PES), etc., which can be determined according to the overall architecture design of the magnetic storage device, and are not limited in this embodiment.

[0061] In a specific implementation, the dimensions of the head device group 11 of the magnetic head 1 in the first direction X are shown by dimension mark t, and correspondingly, the width of the data tape of the magnetic tape 30 is shown by dimension mark d. In a specific implementation, the dimension t of the head device group 11 in the first direction X can be consistent with the width d of the data tape; for example, but not limited to, the dimension t of the head device group 11 and the width d of the data tape can both be 2.85 mm. It is understood that, in possible implementations, due to limitations in the magnetic tape manufacturing process, the width of the data tape can also be slightly greater than 2.85 mm or slightly less than 2.85 mm, etc. Thus, the two servo read heads 112 of each head device group 11 are matched with the architecture on the magnetic tape 30 side, thereby reading information in the servo track through the servo read heads 112, generating a position error signal, and feeding it back to the control system to accurately correspond to the position of the head device 111 array.

[0062] In practical applications, the dimensions t corresponding to the magnetic head assembly 11 and the width d of the data tape are 2.85 mm. There are gaps between the four data tapes, and the magnetic tape 30 has edges on both sides. The width of the magnetic tape 30 is 2.85 mm × 4 + the width of the edges + the width of the gaps. For example, but not limited to, if the width of each gap is 0.25 mm and the width of each edge is 0.25 mm, then the width of the magnetic tape 30 can be 2.85 mm × 4 + 0.25 mm × 3 + 0.25 mm × 2 = 12.65 mm. Correspondingly, the dimension of the magnetic head 1 in the first direction X can be 22.65 mm, which is less than the thickness of a 3.5-inch disk (27 mm). This meets the application requirements of a 3.5-inch disk.

[0063] It should be noted that the dimensions of the data tape and magnetic head assembly described above are merely examples provided in the embodiments of this application and should not be construed as limitations on the magnetic head and magnetic tape storage device provided in this application. For example, if there are no gaps between the four parallel data tapes and the edge of the magnetic tape 30 has no redundant width, then the width of the magnetic tape 30 is 2.85mm × 4 = 11.4mm. The specific dimensions can be determined according to the overall product design requirements, as long as the above functional requirements are met; this application embodiment does not impose any limitations.

[0064] The magnetic head 1 described in the foregoing embodiments includes four sets of magnetic head device groups 11. In other specific implementations, the magnetic head 1 may include other multiple sets of magnetic head device groups 11. Please refer to [the previous examples]. Figure 7 and Figure 8 ,in, Figure 7 This is a schematic diagram of another magnetic head structure provided in an embodiment of this application. Figure 8 for Figure 7 The diagram shows the compatibility between the magnetic head and the magnetic tape. To clearly illustrate the differences and connections between this embodiment and the previous embodiments, identical components or structures are indicated by the same reference numerals in the diagram.

[0065] and Figure 4 Compared to the described magnetic head, the difference in this embodiment is that the device layer of magnetic head 1 includes six sets of magnetic head device groups 11: first magnetic head device group 11-0, second magnetic head device group 11-1, third magnetic head device 11-2, fourth magnetic head device 11-3, fifth magnetic head device 11-4, and sixth magnetic head device 11-5. In the first direction X, the first magnetic head device group 11-0, the second magnetic head device group 11-1, the third magnetic head device 11-2, the fourth magnetic head device 11-3, the fifth magnetic head device 11-4, and the sixth magnetic head device 11-5 are arranged sequentially adjacent to each other, and correspond one-to-one with the six data tapes (data tape 0, data tape 1, data tape 2, data tape 3, data tape 4, and data tape 5) of the magnetic tape 30.

[0066] Similarly, in the first direction X, the center spacing of the six head device groups 11 on the head 1 side is the same as the center spacing of the six data tapes on the magnetic tape 30 side, so that the head devices of the head device group 11 can synchronously perform read and write operations on the tracks of the corresponding data tapes.

[0067] Of course, in other possible implementations, the number of heads in the head 1 side group 11 is the same as the number of data tapes on the magnetic tape 30 side.

[0068] The specific implementation of other functional components can be combined with Figure 4 The implementation methods described are consistent. Therefore, they will not be repeated here.

[0069] The magnetic head 1 described in the foregoing embodiments can be applied to different types of magnetic storage devices. For example... Figure 1 As shown, the magnetic head drive module 20 of the magnetic tape storage device 100 can adopt the aforementioned... Figure 4 or Figure 7 The described magnetic head 1, in a specific implementation, can be fixed by a head support. Based on the chip architecture of this magnetic head, access to the entire data tape can be achieved without moving the magnetic head 1. This avoids the influence of the magnetic head 1 on the positioning of the data tape access on the magnetic tape, effectively improving read and write efficiency. In addition, it avoids the impact of movement positioning accuracy on accurate data access, improving data read and write accuracy; at the same time, the ability to access the entire data tape without moving the magnetic head further simplifies the magnetic head positioning algorithm and optimizes the functional structure of the magnetic head drive module 20 for driving the movement of the magnetic head 1. Overall, it has good designability. Furthermore, using the magnetic tape storage device provided in this application embodiment, there is no need to reserve space inside the housing for the magnetic head access movement stroke, which can effectively improve the space utilization of the magnetic tape storage device and increase the capacity density of storage space in actual scenarios.

[0070] In a specific implementation, the head drive module 20 can be configured to include three heads 1. See also... Figure 9 The figure is a schematic diagram of the adaptation relationship between the magnetic head and the magnetic tape of another magnetic tape storage device provided in an embodiment of this application.

[0071] like Figure 9 As shown, three magnetic heads 1 are spaced apart along the second direction Y, and are, in sequence, a first write head 1A, a read head 1B, and a second write head 1C. Here, the second direction Y is consistent with the movement direction of the magnetic tape 30.

[0072] The first write head 1A and the second write head 1C are used to convert electrical signals into magnetic signals and write them into the magnetic storage medium on the magnetic tape side to realize data writing; the read head 1B is used to convert the magnetic signals on the magnetic storage medium into electrical signals to realize data reading.

[0073] Based on the architecture of a head drive module 20 including two write heads and one read head, bidirectional read / write and corresponding verification can be achieved. Figure 9 As indicated by arrow E, the tape 30 moves in the following direction: after the first write head 1A completes data writing, the read head 1B can read the written data from the tape side. By comparing the consistency between the written data and the read data, the accuracy of the write operation is verified. The reverse is also true, which will not be described here.

[0074] It should be understood that the other functional components of the aforementioned magnetic tape storage device can be implemented using existing technologies, and therefore will not be elaborated upon here.

[0075] In addition to the magnetic tape storage device 100, the magnetic head 1 described in the foregoing embodiments can also be applied to an HDD. See also... Figure 10 This figure is a schematic diagram illustrating the adaptation relationship between the read / write head and the disk of a mechanical hard disk according to an embodiment of this application. To clearly show the differences and connections between this embodiment and the foregoing embodiments, identical components or structures are indicated by the same reference numerals in the figure.

[0076] like Figure 10 As shown, the HDD includes a housing (not shown), a disk 30' and a head drive module disposed within the housing, the head drive module employing the previously described head 1. Four data bands (data band 0, data band 1, data band 2, and data band 3) are arranged on the surface of the disk 30', and are arranged in parallel in the radial direction of the disk body. Correspondingly, the sequential adjacent arrangement direction of each head device group of the head 1 is consistent with the radial direction of each data band on the disk body side. It should be understood that the consistent arrangement direction here means that during disk body rotation, each head device group can synchronously access the corresponding data band. In specific implementations, this includes the case where the sequential arrangement direction of each head device group of the head 1 is completely consistent with the disk body radial direction, and also the case where the sequential arrangement direction of each head device group of the head 1 has positional tolerance requirements that satisfy the above-mentioned functional needs with respect to the disk body radial direction.

[0077] When the read / write head 1 is coupled to the disk 30', the disk 30' moves relative to the read / write head 1 in the direction shown by arrow E' in the figure. The first head device group 11-0, the second head device group 11-1, the third head device 11-2, and the fourth head device 11-3 are radially (in the first direction) corresponding one-to-one with each data band (data band 0, data band 1, data band 2, and data band 3) of the disk 30', so that the head devices of the head device groups can perform read / write operations on the tracks of the corresponding data bands. Based on the chip architecture of this head, access to all data bands can be achieved without moving the read / write head 1. This avoids the influence of the read / write head 1 on the data band access positioning on the disk 30', effectively improving read / write efficiency. Furthermore, it avoids the impact of movement positioning accuracy on precise data access, improving data read / write accuracy; simultaneously, the ability to access all data bands without head movement further simplifies the head positioning algorithm and optimizes the functional structure of the head drive module used to drive the movement of the read / write head 1. Furthermore, the HDD provided in this application embodiment does not require space to be reserved inside the casing for the movement of the magnetic head, which can effectively improve the space utilization of the HDD and increase the capacity density of storage space in real-world scenarios.

[0078] It is understandable that the data band on the disk side and the head device assembly on the head 1 side... Figure 10 The configuration numbers shown are merely an application example, and the specific number can be determined based on the overall product design requirements. This application does not impose any limitations on the embodiments described.

[0079] It should be understood that the other functional components of the HDD mentioned above can be implemented using existing technologies, so they will not be elaborated upon in this article.

[0080] The magnetic head structure implementation schemes described in the foregoing embodiments can be widely applied to various electronic devices, including but not limited to servers, switches, and data centers, which are electronic devices with storage devices. Please refer to... Figure 11 This figure is a schematic diagram of an electronic device provided in an embodiment of this application. The cabinet or housing 200 of the electronic device 1000 is equipped with a magnetic storage device, which includes the magnetic tape storage device 100 as described above and / or the HDD as described above. Based on the head structure provided in this embodiment, access to all data tapes can be achieved without head movement, avoiding the influence of the head on the data tape access positioning on the magnetic storage medium side, effectively improving read / write efficiency. Furthermore, it avoids the impact of movement positioning accuracy on precise data access, improving data read / write accuracy; simultaneously, the ability to access all data tapes without head movement further simplifies the head positioning algorithm and functional structure, exhibiting good designability. In addition, applying the magnetic storage device provided in this embodiment can effectively reduce the space occupied by the head, increasing the storage capacity density in practical scenarios.

[0081] For example, this electronic device can be a magnetic storage device for data storage applications such as data centers, backup, and archiving, primarily used for processing cold data with low access frequency. The magnetic storage device includes a head drive module, a magnetic tape drive, a magnetic storage medium library, and a control unit. The head drive module has magnetic heads for performing write and read operations, the magnetic storage medium library stores the magnetic storage device, and the magnetic tape drive, under the command of the control unit, can be used to move the magnetic storage medium and transfer the magnetic storage device.

[0082] It should be understood that the other functional components of the aforementioned electronic device can be implemented using existing technologies, and therefore will not be elaborated upon here.

[0083] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A magnetic head for adaptation to a magnetic storage medium, characterized in that, The magnetic head includes an insulating dielectric layer and a device layer embedded in the insulating dielectric layer. The device layer includes multiple sets of magnetic head device groups, each set of magnetic head device groups being arranged sequentially adjacent to each other in a first direction and corresponding one-to-one with multiple parallel data bands of the magnetic storage medium.

2. The magnetic head according to claim 1, characterized in that, The magnetic head device group is provided in four groups, and the four groups of magnetic head device groups are arranged sequentially adjacent to each other in one direction.

3. The magnetic head according to claim 1, characterized in that, The magnetic head device group is provided in six groups, and the six groups of magnetic head device groups are arranged sequentially adjacent to each other in one direction.

4. The magnetic head according to any one of claims 1 to 3, characterized in that, The magnetic head device group includes multiple magnetic head devices, which are spaced apart in a first direction to form a magnetic head device array.

5. The magnetic head according to claim 4, characterized in that, The magnetic head device group also includes two servo read heads, which are located at both ends of the magnetic head device group in a first direction.

6. The magnetic head according to claim 4, characterized in that, The head device group includes thirty-two head devices.

7. A magnetic head drive module, characterized in that, It includes a base and a magnetic head disposed on the base, wherein the magnetic head is the magnetic head according to any one of claims 1 to 6.

8. The magnetic head drive module according to claim 7, characterized in that, The magnetic head is configured as three, namely a first write head, a read head, and a second write head, which are spaced apart in a second direction, and the second direction intersects with the first direction.

9. A magnetic storage device, characterized in that, The magnetic storage device includes a housing, a magnetic storage medium and a head drive module disposed within the housing, the magnetic storage medium including a plurality of data bands arranged in parallel, and the head drive module employing the head drive module as described in claim 7 or 8.

10. The magnetic storage device according to claim 9, characterized in that, The magnetic storage device is a magnetic tape storage device, which includes two magnetic tape reels. The magnetic storage medium is a magnetic tape wound on the magnetic tape reels, and multiple data tapes are arranged in parallel along the width direction of the magnetic tape.

11. The magnetic storage device according to claim 10, characterized in that, The two adjacent data bands have a gap in the width direction.

12. The magnetic storage device according to claim 10, characterized in that, There is no gap between two adjacent data bands in the width direction.

13. The magnetic storage device according to claim 9, characterized in that, The magnetic storage device is a mechanical hard disk, the magnetic storage medium is a disk, and multiple data bands are arranged in parallel radially on the disk body.

14. An electronic device, characterized in that, The electronic device includes a magnetic storage device, wherein the magnetic storage device is the magnetic storage device according to any one of claims 9 to 13.

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