CN111028864A - A hard disk reading and writing device based on liquid metal cooling - Google Patents
A hard disk reading and writing device based on liquid metal cooling Download PDFInfo
- Publication number
- CN111028864A CN111028864A CN201911245175.8A CN201911245175A CN111028864A CN 111028864 A CN111028864 A CN 111028864A CN 201911245175 A CN201911245175 A CN 201911245175A CN 111028864 A CN111028864 A CN 111028864A
- Authority
- CN
- China
- Prior art keywords
- liquid metal
- cooling
- read
- metal cooling
- write
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 174
- 229910001338 liquidmetal Inorganic materials 0.000 title claims abstract description 141
- 239000000110 cooling liquid Substances 0.000 claims abstract description 21
- 238000004804 winding Methods 0.000 claims abstract description 21
- 239000002826 coolant Substances 0.000 claims description 23
- 239000004065 semiconductor Substances 0.000 claims description 14
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 229910000846 In alloy Inorganic materials 0.000 claims description 6
- 230000017525 heat dissipation Effects 0.000 claims description 6
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052733 gallium Inorganic materials 0.000 claims description 4
- 229910000807 Ga alloy Inorganic materials 0.000 claims description 3
- 229910001128 Sn alloy Inorganic materials 0.000 claims description 3
- 239000003921 oil Substances 0.000 claims description 3
- 239000012266 salt solution Substances 0.000 claims description 3
- RHZWSUVWRRXEJF-UHFFFAOYSA-N indium tin Chemical compound [In].[Sn] RHZWSUVWRRXEJF-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/4806—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
- G11B5/4833—Structure of the arm assembly, e.g. load beams, flexures, parts of the arm adapted for controlling vertical force on the head
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/14—Reducing influence of physical parameters, e.g. temperature change, moisture, dust
- G11B33/1406—Reducing the influence of the temperature
- G11B33/1413—Reducing the influence of the temperature by fluid cooling
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/4806—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
- G11B5/4846—Constructional details of the electrical connection between arm and support
Landscapes
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Abstract
本发明公开了一种基于液态金属冷却的硬盘读写装置，其包括盘片以及位于所述盘片上方的读写头组件，所述读写头组件包括读写头外壳以及设置在所述读写头外壳内部的读写磁头和液态金属冷却组件，所述液态金属冷却组件包括用于储存液态金属冷却液的储存器、与所述储存器连通的液态金属冷却管道、与所述液态金属冷却管道连通的电流发生器以及与所述液态金属冷却管道接触设置的冷却结构，所述液态金属冷却管道包括缠绕在所述读写磁头表面的缠绕管道。本发明通过在所述读写头外壳内设置所述液态金属冷却组件，能够有效将所述读写磁头在信息读写过程中产生的热量运输到冷却结构，以实现对所述读写磁头的快速降温，从而有效提升硬盘读写装置的使用寿命。
The invention discloses a hard disk reading and writing device based on liquid metal cooling, which includes a disk and a read-write head assembly located above the disk. The read-write head assembly includes a A read-write magnetic head and a liquid metal cooling assembly inside the write head housing, the liquid metal cooling assembly includes a storage for storing liquid metal cooling liquid, a liquid metal cooling pipe communicated with the storage, and a liquid metal cooling pipe connected to the liquid metal cooling liquid. A current generator communicated with a pipeline and a cooling structure disposed in contact with the liquid metal cooling pipeline, the liquid metal cooling pipeline comprising a winding pipeline wound on the surface of the read-write magnetic head. In the present invention, by arranging the liquid metal cooling component in the casing of the read-write head, the heat generated by the read-write head in the process of reading and writing information can be effectively transported to the cooling structure, so as to realize the protection of the read-write head. Rapid cooling, thus effectively improving the service life of the hard disk reading and writing device.
Description
Technical Field
The invention relates to the field of hard disks, in particular to a hard disk read-write device based on liquid metal cooling.
Background
The hard disk is a data storage device which is formed by combining a disk, a magnetic head, a disk rotating shaft, a control motor and the like. The magnetic particles on the disk can provide infinite data recording and erasing, the disk can rotate at high speed of thousands of revolutions per minute, and the read-write magnetic head can be positioned at a designated position on the disk to perform read-write operation.
In the process of reading and writing information of the existing hard disk, because the disk sheet rotates at a high speed during reading and writing operation, the magnetic head is easy to generate higher heat during reading and writing information, so that the temperature of the magnetic head is increased. However, the prior art cannot rapidly and effectively cool the magnetic head, which leads to the reduction of the information reading and writing precision and the easy damage of the disk, and shortens the service life of the hard disk.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
The invention aims to provide a hard disk read-write device based on liquid metal cooling, and aims to solve the problems that in the prior art, a magnetic head cannot be cooled effectively and quickly, so that the information read-write precision is poor, a disk is easy to damage, and the service life of a hard disk is shortened.
The technical scheme of the invention is as follows:
the utility model provides a hard disk read-write device based on liquid metal cooling, wherein, includes the disc and is located the read-write head subassembly of disc top, the read-write head subassembly includes the read-write head shell and sets up read-write magnetic head and the liquid metal cooling module of read-write head shell inside, liquid metal cooling module including be used for storing the liquid metal coolant the accumulator, with the liquid metal cooling pipe way of accumulator intercommunication, with the current generator of liquid metal cooling pipe way intercommunication and with the cooling structure that liquid metal cooling pipe way contact set up, liquid metal cooling pipe way is including the winding pipeline of winding on read-write magnetic head surface.
In the hard disk read-write device based on liquid metal cooling, two ports of the winding pipeline are respectively communicated with the other two ports of the liquid metal cooling pipeline through two cooling pipeline adapters to form an inner flow channel of the liquid metal cooling liquid; the current generator is respectively inserted into the two cooling pipeline adapters through two lead-out wires.
The hard disk read-write device based on liquid metal cooling is characterized in that the liquid metal cooling liquid is pure liquid metal or a mixed liquid composed of the pure liquid metal and a conductive medium.
The hard disk read-write device based on liquid metal cooling is characterized in that the pure liquid metal is one or more of gallium alloy, indium alloy, gallium-indium alloy and gallium-indium-tin alloy.
The hard disk read-write device based on liquid metal cooling is characterized in that the conductive medium is one or more of conductive oil, salt solution and sodium hydroxide.
The hard disk reading and writing device based on liquid metal cooling is characterized in that the reading and writing head assembly further comprises a magnetic head mounting seat used for fixing the reading and writing magnetic head, the magnetic head mounting seat comprises a first accommodating cavity and an annular sheet arranged on the outer side of the accommodating cavity in a surrounding mode, and a plurality of through holes used for penetrating through the liquid metal cooling pipeline are formed in the first accommodating cavity.
The hard disk reading and writing device based on liquid metal cooling comprises a reading and writing magnetic head, a first accommodating cavity and a second accommodating cavity, wherein the reading and writing magnetic head comprises a cylindrical magnet fixedly connected with the bottom of the first accommodating cavity, the upper end of the cylindrical magnet is provided with a signal interface used for connecting an input and output signal line of a reading and writing head, and the lower end of the cylindrical magnet is provided with two magnetic sheets which are inclined inwards and are symmetrically arranged; the winding pipe is wound on the surface of the cylindrical magnet.
The hard disk reading and writing device based on liquid metal cooling is characterized in that the liquid metal cooling pipeline further comprises a first cooling pipeline and a second cooling pipeline which are located on two sides of the storage and communicated with the storage, and the cooling structures are arranged below the first cooling pipeline and the second cooling pipeline.
The hard disk read-write device based on liquid metal cooling comprises a semiconductor cooling chip, a plurality of energy conduction blocks arranged above the semiconductor cooling chip and a plurality of radiating fins arranged below the semiconductor cooling chip.
The hard disk reading and writing device based on liquid metal cooling comprises a storage, a first containing cavity, a sealing cover and a filter screen, wherein the storage comprises a second containing cavity used for storing liquid metal cooling liquid, the sealing cover is arranged above the second containing cavity, and the filter screen is arranged at the lower end of the sealing cover.
Has the advantages that: the hard disk reading and writing device based on liquid metal cooling comprises a disk and a reading and writing head assembly positioned above the disk, wherein the reading and writing head assembly comprises a reading and writing head shell, a reading and writing magnetic head and a liquid metal cooling assembly, the reading and writing magnetic head and the liquid metal cooling assembly are arranged in the reading and writing head shell, the liquid metal cooling assembly has the advantages of being simple in structure, compact in design and high in heat exchange efficiency, heat generated by the reading and writing magnetic head in the information reading and writing process can be effectively transported to the cooling structure through the liquid metal cooling assembly, the reading and writing magnetic head can be rapidly cooled, and therefore the service life of the hard disk reading and writing device is.
Drawings
Fig. 1 is a schematic structural diagram of a hard disk read/write apparatus based on liquid metal cooling according to a preferred embodiment of the present invention.
FIG. 2 is a schematic diagram of a half-sectional structure of the pickup head assembly according to the present invention.
FIG. 3 is a cross-sectional view of the magnetic read/write head and the magnetic head mounting base of the present invention after assembly.
FIG. 4 is a schematic diagram of the internal top view structure of the read/write head assembly of the present invention.
Fig. 5 is a schematic structural view of the cooling structure of the present invention.
Fig. 6 is a schematic diagram of a quarter section of the reservoir of the present invention.
Figure 7 is a cross-sectional view of a cooling conduit adapter of the present invention in an assembled state.
Detailed Description
The invention provides a hard disk read-write device based on liquid metal cooling, and the invention is further described in detail below in order to make the purpose, technical scheme and effect of the invention clearer and clearer. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 and 2, an embodiment of the invention provides a hard disk read/write apparatus based on liquid metal cooling, which includes a disk 10 and a read/write head assembly 20 located above the disk 10, where the read/write head assembly 20 includes a read/write head housing 21, and a read/write head 30 and a liquid metal cooling assembly 40 that are disposed inside the read/write head housing 21, the liquid metal cooling assembly 40 includes a reservoir 50 for storing liquid metal cooling liquid, a liquid metal cooling pipe 60 communicated with the reservoir 50, a current generator 01 communicated with the liquid metal cooling pipe 60, and a cooling structure 70 disposed in contact with the liquid metal cooling pipe 60, and the liquid metal cooling pipe 60 includes a winding pipe 61 wound on a surface of the read/write head 30.
In this embodiment, a liquid metal coolant is used as a heat exchange medium in a heat exchange process, and an electric field generated by the current generator 01 can drive the liquid metal coolant in the reservoir 50 to flow, so that the liquid metal coolant flows through the winding pipe 61 and a liquid metal cooling pipe portion in contact with the cooling structure 70 and circulates back and forth, the liquid metal coolant absorbs heat generated by the read-write magnetic head 30 when flowing through the winding pipe 61 and changes into a high-temperature liquid metal coolant, and the cooling structure can cool the high-temperature liquid metal coolant when flowing through the liquid metal cooling pipe portion in contact with the cooling structure 70, thereby achieving convective heat exchange; that is to say, in this embodiment, the liquid metal cooling assembly is disposed inside the read/write head housing 21, so that heat generated by the read/write magnetic head 30 during information reading/writing can be effectively transported to the cooling structure for heat exchange, thereby achieving rapid cooling of the read/write magnetic head 30, and effectively improving the information reading/writing precision and the service life of the hard disk reading/writing device.
In this embodiment, the current direction generated by the current generator 01 is the same as the flowing direction of the liquid metal cooling liquid, and the current generated by the current generator 01 not only can effectively drive the liquid metal cooling liquid to flow in the channel, but also can effectively reduce the surface tension of the liquid metal cooling liquid and enhance the wetting characteristic thereof, thereby reducing the flowing resistance of the liquid metal cooling liquid.
The hard disk reading and writing device based on liquid metal cooling provided by the embodiment has the advantages of simple structure, compact design and relative independence of all components, and is convenient to maintain and overhaul; the hard disk read-write device based on liquid metal cooling also has the characteristic of good interchangeability, and can realize modularization, serialization and rapid design; the hard disk reading and writing device based on liquid metal cooling has no special requirements on working environment, can adapt to various special environments, has good cooling effect of the reading and writing magnetic head, has high heat dissipation efficiency in the hard disk reading and writing device, and can effectively prolong the service life of the hard disk reading and writing device.
In some embodiments, different liquid metal cooling liquids can be selected according to cooling requirements, common temperature states and environmental requirements, when the working temperature of the heat source is higher, a liquid metal with a higher melting point can be selected, and the composition of different liquid metal cooling liquids can be designed and selected according to heat dissipation requirements.
In some embodiments, the liquid metal coolant is a pure liquid metal or a mixed liquid composed of a pure liquid metal and a conductive medium. By way of example, the pure liquid metal is one or more of gallium alloy, indium alloy, gallium indium alloy, and gallium indium tin alloy, but is not limited thereto; the conductive medium is one or more of conductive oil, salt solution and sodium hydroxide, but is not limited thereto.
In some embodiments, a micro pump may be further disposed on the liquid metal cooling pipe 60, and the micro pump may be used as a flow power source of the liquid metal micro pump heat exchanging device, and when the liquid metal cooling liquid flows slowly or does not flow under the action of an electric field generated by the current generator, the micro pump may be activated to force the liquid metal cooling liquid to flow in the channel, so as to improve the convection heat exchanging efficiency. By way of example, the micropump is one of a micro peristaltic pump, a micro plunger pump, a micro pressure pump, or a micro gear pump, but is not limited thereto.
In some embodiments, as shown in fig. 2 and 3, the head assembly 20 further includes a head mount 80 for fixing the read/write head 30, the head mount 80 includes a first receiving cavity 81 and a ring 82 surrounding the first receiving cavity 81, and the first receiving cavity 81 is provided with a plurality of through holes for passing through the liquid metal cooling channel. In this embodiment, the magnetic head mount 80 is conveniently fixed inside the head housing 21 by the ring piece 82; first last side and the lower side that holds chamber 81 all are provided with 2 and perforate 83, the both ends of winding pipeline 61 are passed through earlier two perforation bendings of side stretch into down the first inside that holds chamber 81, later follow again two perforation of going up the side are worn out the first outside that holds chamber 81, the both ends of winding pipeline 61 are worn out respectively are connected with a cooling tube adapter 62 behind the first outside that holds chamber 81, winding pipeline 61 passes through cooling tube adapter 62 with two other ports 63 of liquid metal cooling tube 60 communicate, form the circulation internal flow passageway of liquid metal coolant liquid.
In some embodiments, as shown in fig. 2 and 7, two ports of the winding pipe 61 are respectively communicated with the other two ports 63 of the liquid metal cooling pipe 60 through two cooling pipe joints 62 to form an inner flow channel of the liquid metal cooling liquid; current generator 01 inserts respectively through two extraction wires 02 in two cooling tube adapters 62, the electric field that current generator 01 produced can drive liquid metal coolant liquid is in flow in the circulation passageway.
In some embodiments, as shown in fig. 3, the read/write magnetic head 30 includes a cylindrical magnet 31 fixedly connected to the bottom of the first accommodating cavity 81, a signal interface 32 for connecting an input/output signal line of the read/write head is disposed at an upper end of the cylindrical magnet 31, and two magnetic sheets 33 are disposed at a lower end of the cylindrical magnet 31, wherein the two magnetic sheets are tilted inward and are symmetrically disposed; the winding tube 61 is wound around the surface of the cylindrical magnet 31. In this embodiment, in the process of reading and writing information by the read-write magnetic head 30, the magnetic sheet 33 disposed at the lower end of the cylindrical magnet 31 directly contacts with the disk 10, heat generated by the magnetic sheet 33 is transmitted to the cylindrical magnet 31, the winding pipe 61 wound on the surface of the cylindrical magnet 31 absorbs the heat by the liquid metal cooling liquid therein and transmits the liquid metal cooling liquid after absorbing the heat to the cooling structure for heat exchange, so as to achieve rapid cooling of the read-write magnetic head 30, thereby improving fine information reading and writing of the read-write magnetic head and prolonging the service life of the hard disk read-write apparatus.
In some embodiments, the read/write head 30 is removably attached to the head mount 80 for easy disassembly, assembly, and replacement. For example, an external thread is disposed outside the cylindrical magnet 31 of the read/write magnetic head 30, an internal thread is disposed inside the first accommodating cavity 81 of the magnetic head mounting seat 80, and the cylindrical magnet 31 and the first accommodating cavity 81 are screwed by matching the external thread and the internal thread, so that the read/write magnetic head 30 and the magnetic head mounting seat 80 are connected.
In some specific embodiments, the read-write magnetic head 30 and the magnetic head mounting seat 80 can be fixedly bonded by an adhesive.
In some embodiments, as shown in fig. 3 and 4, the liquid metal cooling conduit 60 further comprises a first cooling conduit 64 and a second cooling conduit 65 positioned on both sides of the reservoir 50 and in communication with the reservoir 50, and the cooling structure 70 is disposed below each of the first cooling conduit 64 and the second cooling conduit 65. In order to improve the heat exchange efficiency of the liquid metal cooling assembly, two cooling pipelines are arranged in the embodiment, and a cooling structure 70 is arranged below each cooling pipeline.
In some embodiments, the first cooling conduit 64 and the second cooling conduit 65 are both conduits in an S-shaped arrangement. The liquid metal cooling liquid located in the winding pipe 61 absorbs the heat of the read-write magnetic head 30 and then flows through the first cooling pipe 64 and the second cooling pipe 65 in sequence, in this embodiment, the first cooling pipe 64 and the second cooling pipe 65 are set to be S-shaped, so that the contact area between the cooling pipes and the cooling structure can be effectively increased, the heat exchange efficiency of the liquid metal cooling assembly is effectively improved, the read-write magnetic head 30 is cooled quickly, and the fine information read-write of the read-write magnetic head and the service life of the hard disk read-write device are further realized.
In some embodiments, as shown in FIG. 4, the head housing 21 is arranged in a Y-shaped configuration, and the first cooling conduit 64 and the second cooling conduit 65 are arranged at the left diagonal portion and the right diagonal portion of the Y-shaped head housing, respectively; the storage 50 is disposed at the junction of the left and right oblique portions of the Y-shaped head housing, and the read/write head 30 and the head mount 80 are disposed at the vertical portion of the Y-shaped head housing. In the embodiment, the shape of the head housing 21 is designed to be Y-shaped, because the cooling pipes arranged closely to the outline of the Y-shaped housing can make the cooling pipes longer, increase the heat exchange area, and make the overall structure of the assembly more compact.
In some embodiments, as shown in fig. 1, 4-5, a cooling structure 70 is disposed below each of the first cooling pipe 64 and the second cooling pipe 65, and taking the cooling structure 70 below the first cooling pipe 64 as an example, the cooling structure 70 includes a plurality of energy conduction blocks 71 directly contacting the first cooling pipe 64, a semiconductor cooling chip 72 below the energy conduction blocks 71, and a plurality of heat dissipation fins 73 below the semiconductor cooling chip 72. In this embodiment, the semiconductor cooling chip 72 can be rapidly cooled after being connected to a chip power supply, and at this time, the energy conduction block 71 is equivalent to a cooling block, and when the high-temperature liquid metal coolant absorbing heat of the read/write magnetic head 30 flows through the first cooling pipe 64, the energy conduction block 71 can rapidly conduct cold air generated by the semiconductor cooling chip 63 into the high-temperature liquid metal coolant, so that the temperature of the high-temperature liquid metal coolant is rapidly reduced, thereby achieving efficient convective heat transfer. In this embodiment, the energy conduction block 71 can also effectively prevent the semiconductor cooling chip 72 from directly contacting the first cooling pipe 64, so as to prevent the liquid metal cooling liquid inside the first cooling pipe 64 from condensing, and thus block or obstruct the flow of the liquid metal cooling liquid in the first cooling pipe 64. By way of example, 3 energy conduction blocks 71 can be disposed above the semiconductor cooling chip 72, and 3 heat dissipation fins 73 can be disposed below the semiconductor cooling chip 72, wherein the heat dissipation fins 73 are mainly used for dissipating heat generated by the semiconductor cooling chip 72 during a cooling process.
In some embodiments, to improve the heat convection efficiency of the liquid metal cooling assembly 40, the cooling structures 70 may be disposed at both upper and lower ends of the first cooling pipe 64 and the second cooling pipe 65, so as to double the heat exchange efficiency of the liquid metal cooling assembly 40.
In some embodiments, as shown in fig. 2 and 6, the reservoir 50 includes a second receiving chamber 51 for storing the liquid metal coolant, a sealing cover 52 disposed above the second receiving chamber 51, and a filter net 54 disposed at a lower end of the sealing cover 52. In this embodiment, the sealing cover 52 can prevent the liquid metal in the second accommodating cavity 51 from leaking, and the filter screen 54 can be used for filtering micro-nano aggregated particles formed in the liquid metal during the flowing process and dust deposited in the flow channel, so as to effectively prevent the liquid metal from being blocked during the flowing process; the filter screen 54 can also be used as a droplet generator, and when the liquid metal coolant passes through the filter screen, the filter screen can divide the liquid metal coolant into smaller droplets, so that the liquid metal coolant has a larger specific surface area, the heat exchange efficiency can be improved, and the temperature of the read-write head can be reduced more efficiently.
In some specific embodiments, as shown in fig. 6, the filter screen 54 includes a plurality of filter sheets 541 arranged in a matrix, and a plurality of filter holes 542 are disposed on the filter sheets 541. The size of the filtering holes 542 can be set according to requirements.
In some embodiments, as illustrated in FIG. 1, the disk 10 is provided with a data recording region 11 and a head landing region 12. Specifically, the head parking area 12 is disposed at an edge position of the disk 10, the head parking area 12 surrounds the data recording area 11, the read/write head 30 is suspended on the data recording area 11 for data writing and reading when the hard disk is in operation, and the read/write head 30 is placed in the head parking area 12 when the hard disk is out of operation.
In summary, in the present invention, liquid metal is used as a heat exchange medium in a heat exchange process, and an electric field generated by the current generator can drive liquid metal coolant in the reservoir to flow, so that the liquid metal coolant flows through the winding pipe and a liquid metal cooling pipe portion in contact with the cooling structure and circulates back and forth, the liquid metal coolant absorbs heat generated by the read-write head when flowing through the winding pipe to change into high temperature liquid metal coolant, and the cooling structure can cool the high temperature liquid metal coolant when flowing through the liquid metal cooling pipe portion in contact with the cooling structure, thereby achieving convective heat exchange; that is to say, this embodiment through set up inside the read-write head shell the liquid metal cooling module can effectively with the heat that read-write magnetic head produced at information reading and writing in-process is transported to cooling structure and is carried out the heat transfer to the realization is to the rapid cooling of read-write magnetic head, thereby effectively promotes information reading and writing precision and hard disk read-write device's life.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a hard disk read-write device based on liquid metal cooling, its characterized in that includes the disc and is located the read-write head subassembly of disc top, the read-write head subassembly includes the read-write head shell and sets up read-write magnetic head and the liquid metal cooling module of read-write head shell inside, liquid metal cooling module including be used for storing the liquid metal coolant liquid the accumulator, with the liquid metal cooling pipe way of accumulator intercommunication, with the current generator of liquid metal cooling pipe way intercommunication and with the cooling structure that liquid metal cooling pipe way contact set up, liquid metal cooling pipe is including the winding pipeline of winding on read-write magnetic head surface.
2. The hard disk reading and writing device based on liquid metal cooling of claim 1, wherein two ports of the winding pipe are respectively communicated with the other two ports of the liquid metal cooling pipe through two cooling pipe adapters to form an inner flow channel of the liquid metal cooling liquid; the current generator is respectively inserted into the two cooling pipeline adapters through two lead-out wires.
3. The hard disk read-write device based on liquid metal cooling of claim 1, wherein the liquid metal cooling liquid is pure liquid metal or a mixed liquid composed of pure liquid metal and a conductive medium.
4. The hard disk read-write device based on liquid metal cooling of claim 3, wherein the pure liquid metal is one or more of gallium alloy, indium alloy, gallium indium alloy and gallium indium tin alloy.
5. The liquid metal cooling-based hard disk reading and writing device according to claim 3, wherein the conductive medium is one or more of conductive oil, salt solution and sodium hydroxide.
6. The device as claimed in any one of claims 1 to 5, wherein the read/write head assembly further comprises a head mounting base for fixing the read/write head, the head mounting base comprises a first accommodating cavity and a ring-shaped plate surrounding the accommodating cavity, and the first accommodating cavity is provided with a plurality of through holes for passing through the liquid metal cooling pipe.
7. The device as claimed in claim 6, wherein the read/write head comprises a cylindrical magnet fixedly connected to the bottom of the first chamber, the upper end of the cylindrical magnet is provided with a signal interface for connecting the input/output signal line of the read/write head, and the lower end of the cylindrical magnet is provided with two magnetic sheets which are inclined inwards and arranged symmetrically; the winding pipe is wound on the surface of the cylindrical magnet.
8. The hard disk reading/writing device based on liquid metal cooling of any one of claims 1 to 5, wherein the liquid metal cooling pipeline further comprises a first cooling pipeline and a second cooling pipeline which are located at two sides of the storage and are communicated with the storage, and the cooling structure is arranged below each of the first cooling pipeline and the second cooling pipeline.
9. The hard disk reading/writing device based on liquid metal cooling of any one of claims 1 to 5, wherein the cooling structure comprises a semiconductor cooling chip, a plurality of energy conduction blocks disposed above the semiconductor cooling chip, and a plurality of heat dissipation fins disposed below the semiconductor cooling chip.
10. The hard disk reading and writing device based on liquid metal cooling of any one of claims 1 to 5, wherein the reservoir comprises a second accommodating cavity for storing liquid metal cooling liquid, a sealing cover arranged above the second accommodating cavity, and a filter screen arranged at the lower end of the sealing cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911245175.8A CN111028864B (en) | 2019-12-06 | 2019-12-06 | Hard disk read-write device based on liquid metal cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911245175.8A CN111028864B (en) | 2019-12-06 | 2019-12-06 | Hard disk read-write device based on liquid metal cooling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111028864A true CN111028864A (en) | 2020-04-17 |
| CN111028864B CN111028864B (en) | 2024-10-01 |
Family
ID=70207557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911245175.8A Active CN111028864B (en) | 2019-12-06 | 2019-12-06 | Hard disk read-write device based on liquid metal cooling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111028864B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118804570A (en) * | 2024-09-13 | 2024-10-18 | 歌尔股份有限公司 | Heat dissipation modules and application devices |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003109207A (en) * | 2001-09-28 | 2003-04-11 | Matsushita Electric Ind Co Ltd | Thin film magnetic head slider and manufacturing method thereof |
| US7609473B1 (en) * | 2008-05-13 | 2009-10-27 | Hitachi Global Storage Technologies Netherlands, B.V. | Dissipation of liquid droplets in a magnetic disk drive |
| US20140293542A1 (en) * | 2013-03-30 | 2014-10-02 | Jan Vetrovec | Thermal mgmt. device for high-heat flux electronics |
| CN109065084A (en) * | 2018-10-12 | 2018-12-21 | 苏州普福斯信息科技有限公司 | A kind of mobile hard disk of high efficiency and heat radiation |
| CN110085388A (en) * | 2019-04-28 | 2019-08-02 | 佛山市南海南洋电机电器有限公司 | A kind of magnetized head and magnetizer |
| CN211788161U (en) * | 2019-12-06 | 2020-10-27 | 南方科技大学 | Hard disk read-write device based on liquid metal cooling |
-
2019
- 2019-12-06 CN CN201911245175.8A patent/CN111028864B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003109207A (en) * | 2001-09-28 | 2003-04-11 | Matsushita Electric Ind Co Ltd | Thin film magnetic head slider and manufacturing method thereof |
| US7609473B1 (en) * | 2008-05-13 | 2009-10-27 | Hitachi Global Storage Technologies Netherlands, B.V. | Dissipation of liquid droplets in a magnetic disk drive |
| US20140293542A1 (en) * | 2013-03-30 | 2014-10-02 | Jan Vetrovec | Thermal mgmt. device for high-heat flux electronics |
| CN109065084A (en) * | 2018-10-12 | 2018-12-21 | 苏州普福斯信息科技有限公司 | A kind of mobile hard disk of high efficiency and heat radiation |
| CN110085388A (en) * | 2019-04-28 | 2019-08-02 | 佛山市南海南洋电机电器有限公司 | A kind of magnetized head and magnetizer |
| CN211788161U (en) * | 2019-12-06 | 2020-10-27 | 南方科技大学 | Hard disk read-write device based on liquid metal cooling |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118804570A (en) * | 2024-09-13 | 2024-10-18 | 歌尔股份有限公司 | Heat dissipation modules and application devices |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111028864B (en) | 2024-10-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11109518B2 (en) | Water-cooled motor controller | |
| CN108811472A (en) | Liquid cooling server apparatus, server and liquid cooling apparatus | |
| JP2005229033A (en) | Liquid cooling system and electronic apparatus equipped with the same | |
| TWI293860B (en) | ||
| CN104115578A (en) | Hard drive cooling for fluid submersion cooling systems | |
| JP2005229030A (en) | Electronic equipment with liquid cooling system | |
| CN110926244B (en) | A magnetic fluid heat exchange device | |
| CN106597784B (en) | Fluorescent wheel heat dissipation device for optical machine module | |
| WO2018176535A1 (en) | Novel mechanical pump liquid-cooling heat-dissipation system | |
| CN110910911A (en) | A hard disk reading and writing device based on magnetic fluid cooling | |
| CN111028864A (en) | A hard disk reading and writing device based on liquid metal cooling | |
| CN211788161U (en) | Hard disk read-write device based on liquid metal cooling | |
| CN211788162U (en) | Hard disk read-write device based on magnetofluid cooling | |
| CN211125023U (en) | Hard disk read-write device | |
| CN118538509B (en) | A water-cooled special transformer | |
| CN222259821U (en) | A projector heat dissipation device combining TEC and flat heat pipe | |
| CN110910910B (en) | Hard disk reading and writing device | |
| CN209356836U (en) | A kind of cooling system of laser display apparatus | |
| CN106374681A (en) | Liquid cooling device and method for motor | |
| JP2010258009A (en) | Cooling device for electronic component, and electronic apparatus using the same | |
| CN110926245A (en) | A liquid metal heat exchange device | |
| CN207965456U (en) | It can be applied to the liquid-cooling type radiator of fluorescent wheel heat dissipation | |
| CN116723680A (en) | Heat dissipation device and display panel | |
| CN209000541U (en) | A kind of mobile hard disk of high efficiency and heat radiation | |
| CN218547983U (en) | Computer hard disk cooling device using Peltier element |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |