Mobile solid state disk with magnetic attraction function

Abstract

The invention discloses a mobile solid state disk with a magnetic attraction function, and relates to the technical field of hard disks, the mobile solid state disk comprises a hard disk shell with a magnetic force output outer side surface, and the hard disk shell is provided with a main control unit; a storage module; the first magnetic suction unit keeps outputting magnetic force to the magnetic force output outer side surface; a second magnetic unit; an external interface; a control circuit is arranged on the main control unit; when the external interface is connected to obtain electricity, the main control unit can control the second magnetic suction unit to output magnetic force to the magnetic force output outer side surface through the control circuit; by means of the sum of the second magnetic attraction force of the second magnetic attraction unit and the first magnetic attraction force of the first magnetic attraction unit, the mobile hard disk can be better kept on external equipment in a magnetic attraction mode in the using process, and the risk of disengagement is not prone to being generated in the using process; when only the first magnetic attraction force exists, it can be indicated that the mobile hard disk is not used, and at the moment, a user can overcome the magnetic attraction force relatively easily, so that the mobile hard disk can be taken down from the external equipment relatively easily.

Description

Technical Field

[0001] The present invention relates to the technical field of hard disks, and in particular to a mobile solid-state hard disk with a magnetic attraction function. Background Art

[0002] The Chinese utility model, with announcement number CN221175778U, proposes a "magnetically connected circular solid-state drive" for use with an external Type-C interface smartphone. The device consists of an upper cover, a circular mounting ring, a lower cover, and a storage disk assembly. The storage disk consists of a solid-state drive, a main control board, and a Type-C interface. The solid-state drive is plugged into the main control board, and the Type-C interface is soldered to the main control board. The storage disk is assembled on the circular mounting ring and fixed with three small screws. It is then connected to the upper cover with four small screws from the bottom of the circular mounting ring. Finally, a magnetic ring is first attached to the bottom of the circular mounting ring, and the lower cover is then attached together with a circular double-sided tape to form a complete circular solid-state drive. During use, the magnetic attraction provided by the magnetic ring can be used to magnetically attach the circular solid-state drive to the back of the mobile phone.

[0003] The Chinese utility model with announcement number CN221782938U proposes "a mobile solid-state hard drive that can be fixed by magnetic attraction", including a shell, a magnetic attraction component provided in the shell, and the magnetic attraction component is arranged near the inner wall of the wide side of the shell, so as to allow the mobile solid-state hard drive to be adsorbed to a mobile electronic device that supports the magnetic attraction function; the magnetic attraction component includes an insulating pad, an iron sheet and a magnet body, the iron sheet is crimped onto the magnet body, the insulating pad is crimped onto the iron sheet, and the insulating pad isolates the iron sheet from the circuit board in the shell. A magnetic attraction component is provided in the shell, and through the magnetic attraction, the mobile solid-state hard drive that can be fixed by magnetic attraction can be adsorbed to the back of these electronic devices and fixed to a structure that forms an integral part with the mobile electronic device, thereby not affecting the normal use of the electronic device's functions such as taking pictures, freeing up your hands.

[0004] When the mobile solid-state drive is magnetically attached to the mobile phone, regardless of whether data is being read or written, the mobile solid-state drive is magnetically retained by the corresponding magnetic block, and its magnetic attraction remains unchanged.

[0005] When the magnetic attraction force is small, there is a risk that the mobile solid-state drive may fall off during the reading and writing process due to the small magnetic attraction force; when the magnetic attraction force is large, although there is no risk of the mobile solid-state drive falling off, once the user magnetically attaches the mobile solid-state drive to the mobile phone after use or before use, it is difficult to remove the mobile solid-state drive, which needs to be improved. Summary of the Invention

[0006] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0007] To achieve the above object, the present invention provides the following technical solution: a mobile solid-state hard disk with a magnetic attraction function, comprising a hard disk housing having a magnetic output outer surface, and a Main control unit; A storage module is electrically connected to the main control unit; A first magnetic attraction unit, the first magnetic attraction unit is configured to maintain outputting magnetic force to the outer side surface of the magnetic force output; a second magnetic unit; The external interface is electrically connected to the main control unit and is used to connect to external devices for power supply and data transmission; in, The main control unit is provided with a control circuit. When the main control unit is connected to obtain power through an external interface, the main control unit controls the second magnetic attraction unit to output magnetic force to the outer side of the magnetic force output through the control circuit.

[0008] As a further solution of the present invention: the first magnetic attraction unit includes a magnetic block corresponding to the outer side surface of the magnetic force output.

[0009] As a further solution of the present invention: the second magnetic attraction unit includes an electromagnetic coil corresponding to the outer side surface of the magnetic force output; The main control unit controls the electromagnetic coil to be energized through the control circuit to output magnetic force.

[0010] As a further solution of the present invention: the main control unit controls the electromagnetic coil through the control circuit to pass direct current with the same current direction to output magnetic force.

[0011] As a further solution of the present invention: a status confirmation module is provided on the main control unit; When connected to the external interface and powered, the status confirmation module confirms the read and write status, and when it is confirmed that it is in the data read and write state, the main control unit controls the second magnetic attraction unit to output magnetic force to the outer side of the magnetic output through the control circuit.

[0012] As a further aspect of the present invention: the storage module includes a flash memory and a DRAM cache; The status confirmation module tracks the write pointer position and queue status of the DRAM cache to determine whether all data has been transferred to the flash memory. When the cache queue is cleared and the write pointer returns to zero, the write is confirmed to be complete; otherwise, it is confirmed to be in the process of reading or writing.

[0013] As a further solution of the present invention: when the main control unit confirms that the writing is completed through the status confirmation module, the control circuit controls the second magnetic attraction unit to stop outputting magnetic force to the outer side of the magnetic output or weaken the magnetic force output to the outer side of the magnetic output.

[0014] As a further embodiment of the present invention: When the second magnetic attraction unit includes an electromagnetic coil, the method of stopping outputting the magnetic force to the outer side surface of the magnetic force output is: controlling the electromagnetic coil to be powered off.

[0015] As a further solution of the present invention: the control circuit is further electrically connected to a slow-release circuit, which is configured to store electrical energy when the electromagnetic coil is energized; When the main control unit controls the electromagnetic coil to be powered off through the control circuit, the slow-release circuit releases the stored electrical energy to the electromagnetic coil.

[0016] As a further embodiment of the present invention: When the second magnetic attraction unit includes an electromagnetic coil, a method of weakening the magnetic force output toward the outer side surface of the magnetic force output is to control and reduce the current passing through the electromagnetic coil.

[0017] Compared with the prior art, the beneficial effects of the technical solution of the present invention are: before use, the mobile hard disk can be pre-magnetically attracted to an external device with a first magnetic force by maintaining the magnetic force provided by the first magnetic unit, such as being magnetically attracted to a mobile phone or tablet; when in use, it is plugged in through an external interface to obtain power and data connection; when connected to obtain power through the external interface, the main control unit controls the second magnetic unit through the control circuit to output magnetic force to the outer side of the magnetic force output to obtain the second magnetic force provided by the second magnetic unit; through the sum of the first magnetic force and the second magnetic force, the mobile hard disk can be better magnetically retained on the external device during use, and the risk of detachment is not easily generated during use.

[0018] When only the first magnetic attraction force is present, it indicates that the mobile hard disk is not in use. At this time, the user can relatively easily overcome the magnetic attraction force, so as to be able to relatively easily remove the mobile hard disk from the external device.

[0019] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural cross-sectional view of the present invention; Figure 3 is a circuit block diagram of the present invention; Figure 4 It is a circuit principle diagram of the control circuit and the slow-release circuit of the present invention.

[0022] The corresponding reference numerals in the accompanying drawings are described as follows: Hard disk housing-1, half housings-1a, 1b, magnetic output outer surface-101, magnetic output inner surface-102, Main control unit-2, main control chip-201, status confirmation module-202, Storage module-3, flash memory-301, DRAM cache-302, The second magnetic unit-4, electromagnetic coil-401, External interface-5, Control circuit-6, Connecting bracket-7, Road Plate-8, Magnetic Block-9, Slow-release circuit-10. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-4 A mobile solid-state hard drive with a magnetic attraction function includes a hard drive housing 1 having an outer surface 101 for outputting magnetic force. The hard drive housing 1 is provided with a main control unit, a storage module, a first magnetic attraction unit, a second magnetic attraction unit, and an external interface. The storage module is electrically connected to the main control unit. The first magnetic attraction unit is configured to maintain magnetic force output toward the outer surface for outputting magnetic force. The external interface is electrically connected to the main control unit and is used to connect to an external device for power supply and data transmission.

[0025] The main control unit is provided with a control circuit. When the main control unit is connected to obtain power through an external interface, the main control unit controls the second magnetic attraction unit to output magnetic force to the outer side of the magnetic force output through the control circuit.

[0026] Before use, the mobile hard disk can be pre-magnetically attracted to an external device with a first magnetic force by maintaining the magnetic force provided by the first magnetic unit, such as a mobile phone or tablet; when in use, it is plugged in through an external interface to obtain power and data connection; when connected to obtain power through the external interface, the main control unit can control the second magnetic unit to output magnetic force to the outer side of the magnetic force output through the control circuit to obtain the second magnetic force provided by the second magnetic unit; through the sum of the first magnetic force and the second magnetic force, the mobile hard disk can be better magnetically retained on the external device during use, and the risk of detachment is less likely to occur during use.

[0027] When only the first magnetic attraction force is present, it indicates that the mobile hard disk is not in use. At this time, the user can relatively easily overcome the magnetic attraction force, so as to be able to relatively easily remove the mobile hard disk from the external device.

[0028] In some embodiments, a circuit board 8 is disposed in the hard disk housing 1 , and the main control unit 2 and the storage module 3 are both disposed on the circuit board 8 .

[0029] In some implementations, the main control unit 2 includes a main control chip 201 soldered on a circuit board 8 . The storage module 3 includes a flash memory 301 and a DRAM cache 302 soldered on the circuit board 8 .

[0030] In some embodiments, the first magnetic attraction unit includes a magnetic block 9 corresponding to the magnetic force output outer surface 101 .

[0031] Please refer to the following for details: Figure 2 In some embodiments, the hard disk housing 1 has a magnetic output inner side surface 102 corresponding to the magnetic output outer side surface 101, and the magnetic block 9 is arranged in the hard disk housing 1 and close to the magnetic output inner side surface.

[0032] A magnetic block mounting bracket is also provided in the hard disk housing 1 for holding and fixing the magnetic block 9 .

[0033] In some embodiments, the magnetic pole direction of the magnetic block 9 is perpendicular to the magnetic force output outer surface 101. For example, the magnetic pole direction of the magnetic block is Figure 2 The up and down directions in .

[0034] In some embodiments, the magnetic block 9 is arranged in an annular shape. The axial direction of the annular magnetic block 9 is perpendicular to the outer side of the magnetic force output. For example, the axial direction of the annular magnetic block is Figure 2 The up and down directions in .

[0035] In some embodiments, there are multiple magnetic blocks, which are arranged in a ring-shaped manner. The axial direction of the ring structure formed by the multiple magnetic blocks is perpendicular to the outer side surface of the magnetic force output.

[0036] In some embodiments, the second magnetic attraction unit 4 includes an electromagnetic coil corresponding to the outer side surface 101 of the magnetic force output. Figure 2 The electromagnetic coil 401 shown, or Figure 4 The electromagnetic coil L1 is shown.

[0037] In some embodiments, the electromagnetic coil 401 is disposed inside the hard disk housing 1 and close to the inner side surface 102 of the magnetic output.

[0038] A coil mounting bracket is also provided in the hard disk housing 1 for holding and fixing the electromagnetic coil 401 .

[0039] In some embodiments, the axial direction formed by the electromagnetic coil 401 after winding is perpendicular to the outer side surface 101 of the magnetic force output. Figure 2 The up and down directions in .

[0040] In some embodiments, the electromagnetic coil 401 is located in the inner space of an annular magnetic block, or the electromagnetic coil is located in the inner space of an annular structure formed by multiple magnetic blocks.

[0041] In this embodiment, a status confirmation module 202 is provided on the main control unit 2. When the power is obtained by connecting through the external interface 5, the status confirmation module 202 is configured to confirm the read and write status. When it is confirmed that it is in the data read and write state, the main control unit 2 controls the second magnetic attraction unit 4 through the control circuit 6 to output magnetic force to the outer surface 101 of the magnetic force output.

[0042] In some embodiments, the status confirmation module 202 tracks the write pointer position and queue status of the DRAM cache 302 to determine whether all data has been transferred to the flash memory 301; when the cache queue is cleared and the write pointer returns to zero, it is confirmed that the write is completed; otherwise, it is confirmed that it is in the process of reading and writing.

[0043] When the main control unit 2 confirms through the state confirmation module 202 that it is in reading and writing, that is, when it confirms that it is in the data reading and writing state, it controls the second magnetic attraction unit 4 to output magnetic force to the magnetic force output outer surface 101 through the control circuit 6.

[0044] In some embodiments, the main control unit 2 controls the electromagnetic coil 401 to be energized through the control circuit 6 to output magnetic force.

[0045] In some embodiments, the main control unit 2 controls the electromagnetic coil 401 through the control circuit 6 to pass direct current with the same current direction to output magnetic force.

[0046] In some embodiments, when the main control unit 2 confirms that writing is completed through the status confirmation module 202, the control circuit 6 controls the second magnetic attraction unit 4 to stop outputting magnetic force to the magnetic force output outer surface 101 or weaken the magnetic force output to the magnetic force output outer surface.

[0047] In some embodiments, the method of stopping outputting magnetic force to the magnetic force output outer surface 101 is, for example, to control the electromagnetic coil to be powered off.

[0048] In some embodiments, the method of weakening the magnetic force output to the outer side of the magnetic force output is, for example, to control and reduce the current passing through the electromagnetic coil.

[0049] In this embodiment, the mobile hard disk can accurately control the second magnetic unit according to the read and write status. When reading and writing, the first magnetic unit and the second magnetic unit can jointly exert the maximum magnetic force, so that during the reading and writing process, the mobile hard disk can be more stably magnetically retained on the external device, such as magnetically retained on a mobile phone or tablet. Under this magnetic force, the risk of the mobile hard disk falling off and causing disconnection due to pulling of the wire can be better avoided; after the writing is completed, it can be switched to cut off the power to the electromagnetic coil, thereby timely reducing the power consumption of the second magnetic unit, and can facilitate the user to remove the mobile hard disk while keeping the data as safe as possible.

[0050] In some embodiments, the control circuit 6 is further electrically connected to a slow-release circuit 10 , which is configured to store electrical energy when the electromagnetic coil 401 is energized.

[0051] When the main control unit 2 controls the electromagnetic coil 401 to be powered off through the control circuit 6 , the slow-release circuit 10 is configured to release the stored electrical energy to the electromagnetic coil 401 , so that the electromagnetic coil 401 depletes the electrical energy of the slow-release circuit 10 to slow down the disappearance time of the second magnetic attraction.

[0052] like Figure 4 As shown, when the control circuit 6 controls the electromagnetic coil 401 to be powered off, the capacitor C1 of the slow-release circuit 10 can provide electrical energy to prolong the disappearance time of the second magnetic attraction force of the electromagnetic coil L1. In the event of a sudden power outage, such as when a cable is suddenly pulled, causing the external interface 5 to be disconnected from the external device, the second magnetic attraction force can be maintained for a preset time during the power outage to better resist the pulling force that may cause the mobile hard disk to fall off the external device, such as when the cable is pulled, thereby better protecting the mobile hard disk in the event of a sudden power outage.

[0053] In some embodiments, the hard disk housing 1 is box-shaped and consists of two half-shells 1a and 1b. The hard disk housing 1 has corresponding connecting brackets 7 and connecting structures inside for fixing or maintaining the above-mentioned circuit board 8, magnetic block 9, electromagnetic coil 401 and other components.

[0054] An outer side surface (not the magnetic force output outer side surface) of the hard disk housing 1 has an opening, and the external interface 5 is exposed to the outside of the hard disk housing 1 through the opening.

[0055] Figure 1 The external connection interface 5 shown is a female interface. In some embodiments, the external connection interface 5 can also be designed as a male interface, which is passed through the above-mentioned opening to the outside of the hard disk housing.

[0056] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A mobile solid-state hard drive with a magnetic attraction function, characterized in that: The hard disk housing comprises a hard disk housing having a magnetic force output outer side and a Main control unit; A storage module is electrically connected to the main control unit; A first magnetic attraction unit, the first magnetic attraction unit is configured to maintain outputting magnetic force to the outer side surface of the magnetic force output; a second magnetic unit; The external interface is electrically connected to the main control unit and is used to connect to external devices for power supply and data transmission; in, The main control unit is provided with a control circuit. When the main control unit is connected to obtain power through an external interface, the main control unit controls the second magnetic attraction unit to output magnetic force to the outer side of the magnetic force output through the control circuit.

2. The mobile solid-state hard drive with magnetic attraction function according to claim 1, characterized in that: The first magnetic attraction unit includes a magnetic block corresponding to the outer side surface of the magnetic force output.

3. The portable solid-state hard drive with magnetic attraction function according to claim 1, characterized in that: The second magnetic attraction unit includes an electromagnetic coil corresponding to the outer side surface of the magnetic force output; The main control unit controls the electromagnetic coil to be energized through the control circuit to output magnetic force.

4. The portable solid-state hard drive with magnetic attraction function according to claim 3, characterized in that: The main control unit controls the electromagnetic coil through the control circuit to pass direct current with the same current direction to output magnetic force.

5. The mobile solid-state hard drive with magnetic attraction function according to any one of claims 1 to 4, characterized in that: The main control unit is provided with a status confirmation module; When connected to the external interface and powered, the status confirmation module confirms the read and write status, and when it is confirmed that it is in the data read and write state, the main control unit controls the second magnetic attraction unit to output magnetic force to the outer side of the magnetic output through the control circuit.

6. The portable solid-state hard drive with magnetic attraction function according to claim 5, characterized in that: The storage module includes flash memory and DRAM cache; The status confirmation module tracks the write pointer position and queue status of the DRAM cache to determine whether all data has been transferred to the flash memory. When the cache queue is cleared and the write pointer returns to zero, the write is confirmed to be complete; otherwise, it is confirmed to be in the process of reading or writing.

7. The portable solid-state hard drive with magnetic attraction function according to claim 6, characterized in that: When the main control unit confirms that the writing is completed through the status confirmation module, the control circuit controls the second magnetic attraction unit to stop outputting magnetic force to the outer side surface of the magnetic force output or weaken the magnetic force output to the outer side surface of the magnetic force output.

8. The mobile solid-state hard drive with magnetic attraction function according to claim 7, characterized in that: When the second magnetic attraction unit includes an electromagnetic coil, the method of stopping outputting the magnetic force to the outer side surface of the magnetic force output is: controlling the electromagnetic coil to be powered off.

9. The portable solid-state hard drive with magnetic attraction function according to claim 8, characterized in that: The control circuit is also electrically connected to a slow-release circuit, which is configured to store electrical energy when the electromagnetic coil is energized. When the main control unit controls the electromagnetic coil to be powered off through the control circuit, the slow-release circuit releases the stored electrical energy to the electromagnetic coil.

10. The mobile solid-state hard disk with magnetic attraction function according to any one of claims 7 to 9, characterized in that: When the second magnetic attraction unit includes an electromagnetic coil, a method of weakening the magnetic force output toward the outer side surface of the magnetic force output is to control and reduce the current passing through the electromagnetic coil.

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