Mobile solid state disk capable of providing retention force in use process

By controlling the power on/off of the electromagnetic suction unit and the temporary power protection circuit, the problem of magnetic force fixation of existing portable solid-state drives has been solved, realizing flexible control of magnetic force and convenient removal, thus improving applicability.

CN224217245UActive Publication Date: 2026-05-08HUIJU ELECTRONICS (DONGGUAN) IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUIJU ELECTRONICS (DONGGUAN) IND CO LTD
Filing Date
2025-04-23
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing portable solid-state drives with magnetic attraction have a fixed magnetic force during use, which limits their applicability and makes it difficult to adjust flexibly according to needs.

Method used

The electromagnetic attraction unit is powered on/off using a control unit and control circuit, combined with a temporary power protection circuit, to ensure that the electromagnetic attraction unit provides magnetic attraction when needed and fails when removed. The controllability of the electromagnetic attraction is achieved through transistors and coils.

Benefits of technology

It achieves magnetic retention and easy removal of portable solid-state drives during use, and improves the flexibility and applicability of magnetic force.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a mobile solid state disk capable of providing retention force in the use process, which relates to the technical field of mobile solid state disks and comprises a control unit, a control circuit and an electromagnetic attraction unit, the output end of the control unit is connected with the control end of the control circuit, and the input end of the control circuit is connected with a power acquisition unit. The output end of the control circuit is connected with the input end of the electromagnetic attraction unit, the control unit controls the electromagnetic attraction unit to be powered on / off through the control circuit, and the electromagnetic attraction unit generates magnetic force used for moving the solid state disk body to conduct magnetic attraction keeping when powered on; when the mobile solid state disk is powered on for use, the control unit can control the electromagnetic suction unit to be powered on through the control circuit, so that the electromagnetic suction unit is powered on to provide electromagnetic suction capacity, and the electromagnetic suction capacity can enable the mobile solid state disk to obtain a magnetic suction function during use so as to perform magnetic suction holding; the control unit can control the electromagnetic attraction unit to be powered off through the control circuit, so that the mobile solid state disk can be easily taken down.
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Description

Technical Field

[0001] This utility model relates to the field of portable solid-state drive technology, and in particular to a portable solid-state drive that provides holding force during use. Background Technology

[0002] Current magnetically attached portable solid-state drives (SSDs) often have a structure similar to the portable SSD described in Chinese Utility Model No. CN221632255 U, comprising: a casing; a motherboard housed within the casing, which includes a data transmission component for communication with a mobile terminal; and a magnet structure housed within the casing for magnetic connection with the mobile terminal. When in use, the portable SSD is magnetically connected to the mobile terminal, and video recording is then performed via the data transmission component. Alternatively, a magnetically attachable portable SSD, as described in Chinese Utility Model No. CN221782938 U, includes a casing containing a magnetic component located near the inner wall of the wide side of the casing, allowing the portable SSD to be magnetically attached to a mobile electronic device that supports magnetic attachment.

[0003] The aforementioned portable solid-state drives with magnetic attraction primarily rely on magnetic blocks to provide magnetic attraction. Regardless of whether the portable solid-state drive is transmitting data, it provides a fixed magnetic force, and its applicability needs to be improved. Utility Model Content

[0004] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution to address the aforementioned problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a portable solid-state drive that provides holding force during use, comprising...

[0006] Control unit

[0007] Control circuit,

[0008] Electromagnetic suction unit,

[0009] The output of the control unit is connected to the control terminal of the control circuit, the input of the control circuit is connected to power, and the output of the control circuit is connected to the input of the electromagnetic attraction unit. The control unit controls the electromagnetic attraction unit to turn on / off through the control circuit. When powered on, the electromagnetic attraction unit generates a magnetic force to hold the solid-state drive body in place.

[0010] As a further embodiment of this utility model: the control circuit includes a transistor Q1, the base of transistor Q1 corresponds to the control terminal of the control circuit, the collector of transistor Q1 corresponds to the input terminal of the control circuit, and the emitter of transistor Q1 corresponds to the output terminal of the control circuit.

[0011] As a further embodiment of this utility model: the electromagnetic attraction unit includes a coil L1, one end of which corresponds to the input end of the electromagnetic attraction unit, and the other end of which corresponds to the output end of the electromagnetic attraction unit.

[0012] As a further embodiment of this utility model, a temporary power protection circuit is also included;

[0013] The positive terminal of the temporary power protection component is connected to the input terminal of the electromagnetic suction unit. When the control unit controls the electromagnetic suction unit to cut off power through the control circuit, the temporary power protection component supplies power to the electromagnetic suction unit through the input terminal of the electromagnetic suction unit.

[0014] As a further embodiment of this utility model: the temporary power protection circuit includes a capacitor C1, one end of which corresponds to the positive terminal of the temporary power protection component, and the other end of which corresponds to the negative terminal of the temporary power protection component.

[0015] When the electromagnetic suction component is powered on for magnetic attraction, the temporary power protection circuit charges accordingly. When the control unit controls the electromagnetic suction unit to power off or when there is a sudden power failure, the temporary power protection circuit can provide power to the electromagnetic suction component so that the electromagnetic suction component can maintain magnetic attraction for a period of time in an emergency. The emergency magnetic attraction time can be set by selecting capacitor C1, so that when the control unit is powered off or there is a sudden power failure, the user has time to safely remove the portable hard drive.

[0016] Compared with the prior art, the beneficial effects of this technical solution are as follows: When in use with power on, the control unit can control the electromagnetic suction unit to be powered on through the control circuit, so that the electromagnetic suction unit is powered on to provide electromagnetic suction capability. Through the electromagnetic suction capability, the portable solid-state drive can obtain magnetic suction function during use, so as to be magnetically held. Similarly, the control unit can control the electromagnetic suction unit to be powered off through the control circuit, so that the electromagnetic suction capability of the electromagnetic suction unit is disabled. When it is necessary to remove the portable solid-state drive, the electromagnetic suction unit can be in the above-mentioned power-off state, so that the portable solid-state drive can be removed more easily.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is the circuit block diagram of this utility model;

[0020] Figure 2 This is the circuit schematic diagram of this utility model. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-2 A portable solid-state drive that provides holding force during use includes a control unit 1, a control circuit 2, and an electromagnetic suction unit 3.

[0023] The output terminal of the control unit 1 is connected to the control terminal of the control circuit 2, the input terminal of the control circuit 2 is connected to power, and the output terminal of the control circuit 2 is connected to the input terminal of the electromagnetic attraction unit 3. The control unit 1 controls the electromagnetic attraction unit 3 to turn on / off through the control circuit 2. When the electromagnetic attraction unit 3 is powered on, it generates a magnetic force for moving the solid-state drive body to magnetically hold it.

[0024] In some embodiments, this portable solid-state drive also includes an interface, such as a Type-C interface, which can be connected to an external device (not shown). When connected to an external device via the interface, power can be supplied to the power supply unit and power circuitry. Data transfer can also be performed when connected to an external device via the interface.

[0025] In this embodiment, when the device is powered on, the control unit 1 can control the electromagnetic suction unit 3 to be powered on via the control circuit 2, so that the electromagnetic suction unit 3 provides electromagnetic suction capability. Through the electromagnetic suction capability, the portable solid-state drive can obtain magnetic suction function during use, so as to be magnetically held. Similarly, the control unit 1 can control the electromagnetic suction unit 3 to be powered off via the control circuit 2, so that the electromagnetic suction capability of the electromagnetic suction unit 3 is disabled. When it is necessary to remove the portable solid-state drive, the electromagnetic suction unit 3 can be in the above-mentioned power-off state, so that the portable solid-state drive can be removed more easily.

[0026] In some embodiments, the control circuit includes a transistor Q1, the base of which corresponds to the control terminal of the control circuit, the collector of which corresponds to the input terminal of the control circuit, and the emitter of which corresponds to the output terminal of the control circuit.

[0027] like Figure 2 As shown, the control circuit also includes resistors R1 and R2. The base of transistor Q1 is electrically connected to the output terminal of the control unit through resistor R2. The collector of transistor Q1 is connected to the power supply through resistor R1. The emitter of transistor Q1 is electrically connected to the input terminal of the electromagnetic attraction unit.

[0028] In some embodiments, the electromagnetic attraction unit includes a coil L1, one end of which corresponds to the input terminal of the electromagnetic attraction unit, and the other end of which corresponds to the output terminal of the electromagnetic attraction unit.

[0029] like Figure 2 As shown, the electromagnetic attraction unit also includes resistors R3 and R4. One end of coil L1 is connected in series with the emitter of transistor Q1 through resistor R3, and the other end of coil L1 is grounded through resistor R4.

[0030] In some embodiments, the portable solid-state drive further includes a temporary power protection circuit 4; the positive terminal of the temporary power protection component 4 is connected to the input terminal of the electromagnetic suction unit 3, and when the control unit 1 controls the electromagnetic suction unit 3 to power off through the control circuit 2, the temporary power protection component 4 supplies power to the electromagnetic suction unit 3 through the input terminal of the electromagnetic suction unit 3.

[0031] In some embodiments, the temporary power protection circuit includes a capacitor C1, one end of which corresponds to the positive terminal of the temporary power protection component, and the other end of which corresponds to the negative terminal of the temporary power protection component.

[0032] like Figure 2 As shown, the temporary protection circuit also includes resistor R5, one end of capacitor C1 is electrically connected to the emitter of transistor Q1, and the other end of capacitor C1 is grounded through resistor R5.

[0033] In this embodiment, when the electromagnetic suction component is powered on for magnetic attraction, the temporary power protection circuit charges accordingly. When the control unit controls the electromagnetic suction unit to power off or when there is a sudden power failure, the temporary power protection circuit can provide power to the electromagnetic suction component so that the electromagnetic suction component can maintain magnetic attraction for a period of time in an emergency. The emergency magnetic attraction time can be set by selecting capacitor C1, so that when the control unit is powered off or there is a sudden power failure, there is enough reaction time for the user to safely remove the portable hard drive.

[0034] In some embodiments, the portable solid-state drive further includes a housing, flash memory, and DRAM cache, with a coil installed inside the housing (not shown) and close to its inner wall. When the coil is energized to generate a magnetic field, the housing is made magnetically attached, enabling the portable solid-state drive (specifically the housing described above) to be magnetically attached to an external device, such as the back of a mobile phone.

[0035] In some embodiments, the control unit includes a main control chip disposed within the housing.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A portable solid-state drive that provides holding force during use, characterized in that, include Control unit Control circuit, Electromagnetic suction unit, The output of the control unit is connected to the control terminal of the control circuit, the input of the control circuit is connected to power, and the output of the control circuit is connected to the input of the electromagnetic attraction unit. The control unit controls the electromagnetic attraction unit to turn on / off through the control circuit. When powered on, the electromagnetic attraction unit generates a magnetic force to hold the solid-state drive body in place.

2. The portable solid-state drive that provides holding force during use according to claim 1, characterized in that, The control circuit includes a transistor Q1. The base of transistor Q1 corresponds to the control terminal of the control circuit, the collector of transistor Q1 corresponds to the input terminal of the control circuit, and the emitter of transistor Q1 corresponds to the output terminal of the control circuit.

3. The portable solid-state drive that provides holding force during use according to claim 1, characterized in that, The electromagnetic attraction unit includes a coil L1, one end of which corresponds to the input terminal of the electromagnetic attraction unit, and the other end of which corresponds to the output terminal of the electromagnetic attraction unit.

4. The portable solid-state drive that provides holding force during use according to any one of claims 1-3, characterized in that, It also includes a temporary power protection circuit; The positive terminal of the temporary power protection component is connected to the input terminal of the electromagnetic suction unit. When the control unit controls the electromagnetic suction unit to cut off power through the control circuit, the temporary power protection component supplies power to the electromagnetic suction unit through the input terminal of the electromagnetic suction unit.

5. The portable solid-state drive that provides holding force during use according to claim 4, characterized in that, The temporary power protection circuit includes a capacitor C1, one end of which corresponds to the positive terminal of the temporary power protection component, and the other end of which corresponds to the negative terminal of the temporary power protection component.

Citation Information

Patent Citations

  • Mobile solid state disk

    CN221632255U

  • Mobile solid state disk capable of being fixed by magnetic attraction

    CN221782938U