CN111312300A - Data storage device with thermal protection - Google Patents
Data storage device with thermal protection Download PDFInfo
- Publication number
- CN111312300A CN111312300A CN202010090041.XA CN202010090041A CN111312300A CN 111312300 A CN111312300 A CN 111312300A CN 202010090041 A CN202010090041 A CN 202010090041A CN 111312300 A CN111312300 A CN 111312300A
- Authority
- CN
- China
- Prior art keywords
- circuit board
- data storage
- storage device
- main circuit
- shell
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- 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.)
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Classifications
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- 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
- G11B33/12—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules
- G11B33/125—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules the apparatus comprising a plurality of recording/reproducing devices, e.g. modular arrangements, arrays of disc drives
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- 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
- G11B33/142—Reducing the influence of the temperature by fluid cooling by air cooling
Abstract
The invention provides a data storage device, which comprises a shell, a main circuit board and an external connector, wherein the shell is provided with a plurality of ventilation openings, the main circuit board comprises a controller and a plurality of flash memory components, the main circuit board is arranged in the shell and is coated by a fireproof material, the external connector is arranged outside the shell, and a circuit connecting wire is connected between the main circuit board and the external connector.
Description
Technical Field
The present invention relates to a data storage device, and more particularly, to a data storage device with thermal protection function.
Background
At present, Digital Video Recorders (DVRs) are mostly installed in many mission plants or buses. By means of the digital video recorder, the production process of a factory or the condition of passengers in a bus can be monitored, the video recording function of the digital video recorder is utilized to record images in an emergency, and then the images recorded by the digital video recorder can be used as evidence for clearing responsibility.
Digital video recorders typically use a data storage device as a storage medium for recording images. Please refer to fig. 1, which is a circuit structure diagram of a data storage device. As shown in fig. 1, the data storage device 100 may be provided in a digital video recorder, which includes a housing 10. The housing 10 may be a metal housing. A main circuit board 11 will be disposed in the interior of the housing 10. The main circuit board 11 includes a controller 13, a plurality of flash memory modules 15 and a connector 17, wherein the controller 13 is connected to the flash memory modules 15 and the connector 17, respectively. The connector 17 will be protruding out of the housing 10.
The conventional data storage device 100 is not designed to be fire resistant. When a fire occurs in a factory or a bus, the metal shell 10 of the data storage device 100 is heated by the fire source, and the inside of the metal shell 10 is in a high-temperature environment to burn out the controller 13 and the flash memory component 15; alternatively, the fire source may also conduct heat to the main circuit board 11 through the metal pins of the connector 17 to burn out the controller 13 and the flash memory element 15 on the main circuit board 11. The image stored in the burnt flash memory device 15 will be damaged and cannot be read, so that the flash memory device 15 cannot restore the true phase when an emergency occurs.
It is therefore an objective of the claimed invention to provide an innovative data storage device, which performs a thermal protection structure design on a flash memory device in the data storage device to ensure the integrity of the flash memory device in data storage.
Disclosure of Invention
One objective of the present invention is to provide a data storage device with thermal protection, which comprises a casing and a main circuit board having a flash memory component, wherein a plurality of ventilation openings are formed on the surface of the casing, and a fireproof material is arranged inside the casing; when a fire disaster happens, the fireproof material in the shell can effectively isolate high temperature so as to prevent the flash memory component on the circuit board from being burnt by the high temperature; in addition, air convection can be formed between the ventilation opening of the shell and the fireproof material, when a heat source generated by fire conducts to the fireproof material through the shell, the fireproof material can quickly dissipate heat through the air convection formed between the fireproof material and the ventilation opening, and accordingly the situation that the main circuit board coated by the fireproof material is smoldered is avoided.
To achieve the above object, the present invention provides a data storage device with thermal protection, comprising: a first housing having a plurality of ventilation openings; the main circuit board comprises a controller and a plurality of flash memory components, wherein the controller is connected with the flash memory components, and the main circuit board is arranged in the first shell and is coated by a fireproof material; and the external connector is arranged outside the first shell and is electrically connected with the main circuit board through a circuit connecting wire.
In an embodiment of the invention, the fireproof material is a ceramic fiber, a graphene, or a plastic fireproof material.
In an embodiment of the invention, the circuit connecting wire is a flexible circuit board or a flexible flat cable.
In an embodiment of the present invention, the external connector further includes an external circuit board, the external connector is disposed on the external circuit board, one end of the circuit connecting wire is electrically connected to the main circuit board, and the other end of the circuit connecting wire is electrically connected to the external circuit board.
The present invention further provides a data storage device with thermal protection, comprising: a first housing having a plurality of ventilation openings; a second shell, which is arranged in the first shell and is coated by ceramic fiber or a plastic fireproof material; the main circuit board is arranged in the second shell and comprises a controller and a plurality of flash memory components, and the controller is connected with the flash memory components; and the external connector is arranged outside the first shell and is electrically connected with the main circuit board through a circuit connecting wire.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description will be given below of the drawings required for the embodiments or the technical solutions in the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1: a circuit structure diagram of a flash memory device in the related art.
FIG. 2: the data storage device of the invention is in a first view angle, and is constructed in an exploded view.
FIG. 3: the invention relates to a first visual angle structure of a data storage device.
FIG. 4: the data storage device of the invention is in a second view of the structure of the exploded view.
FIG. 5: the invention relates to a structural perspective view of a second visual angle of a data storage device.
FIG. 6: the invention relates to a structural section of a data storage device.
FIG. 7: the circuit structure of the flash memory device of the invention.
Wherein 100 data storage device 10 shell
11 controller of main circuit board 13
15 flash memory assembly 17 connector
200 data storage device 21 first housing
211 upper cover 212 air vent
213 lower cap 2131 recessed area
2132 paster with through holes 215
231 controller 233 flash memory assembly
250 external circuit board 25 external connector
251 inner connector 27 second housing
29 Circuit connection 291 Circuit Wiring
300 host computer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, a first perspective view, a second perspective view, a cross-sectional view and a circuit diagram of the data storage device according to the present invention are respectively shown. As shown in fig. 2 to 6, the data storage device 200 of the present invention is applied to image recording of a digital video recorder or a driving recorder, and includes a first housing 21, a main circuit board 23 and an external connector 25.
The first housing 21 includes an upper cover 211 and a lower cover 213. The upper cover 211 and the lower cover 213 are respectively provided with a plurality of vents 212. In the present invention, the areas of the ventilation openings 212 can be respectively adhered with a combustible sticker 215. The sticker 215 is marked with product-related information of the data storage device 200, such as a product manufacturing company, a product serial number, a product model number, and the like.
The main circuit board 23 is an epoxy resin glass fiber board (FR 4). In an embodiment of the present invention, the main circuit board 23 is disposed in the first housing 21 and directly covered by a fireproof material 22. Alternatively, in order to increase the robustness of the data storage device 200, in another embodiment of the present invention, the main circuit board 23 is further disposed in a second housing 27, and the main circuit board 23 is disposed in the first housing 21 via the second housing 27 and is covered by the fireproof material 22 via the second housing 27. In the present invention, the fireproof material 22 is a ceramic fiber, a graphene, or a plastic fireproof material.
As shown in fig. 2 and fig. 6, the lower cover 213 of the first housing 21 further includes a recessed area 2131. An external circuit board 250 is disposed in the recessed area 2131, an internal connector 251 and the external connector 25 are disposed on the external circuit board 250, and the internal connector 251 is electrically connected to the external connector 25. As shown in fig. 2, 4 and 6, the recessed area 2131 of the bottom cover 213 is provided with a through hole 2132, one end of a circuit connecting wire 29 is electrically connected to the internal connector 251 of the external circuit board 250, and the other end thereof passes through the through hole 2132 to be electrically connected to the main circuit board 23 covered by the fireproof material 22.
Fig. 7 is a circuit diagram of a data storage device according to the present invention, and also refer to fig. 2 to 6. The data storage device 200 of the present invention includes a first housing 21, a main circuit board 23 and an external connector 25. The first housing 21 includes a plurality of ventilation holes 211, and a sticker 215 for indicating information related to the product may be attached to an area where the ventilation holes 211 are formed.
In an embodiment of the present invention, the main circuit board 23 is arranged in the first casing 21 and directly covered by the fireproof material 22; alternatively, in another embodiment of the present invention, the main circuit board 23 is further arranged in the second casing 27, and the main circuit board 23 is arranged in the first casing 21 via the second casing 27 and is covered by the fireproof material 22 via the second casing 27.
The main circuit board 23 includes a controller 231 and a plurality of flash memory devices 233. The controller 231 is connected to the flash memory device 233. The external connector 25 is disposed outside the first housing 21. One end of the circuit connection line 29 is electrically connected to the external connector 25, and the other end passes through the first housing 21, the fireproof material 22 and/or the second housing 27 to be electrically connected to the main circuit board 23. The data storage device 200 is electrically connected to a host 300 through the external connector 25.
Host 300 may be a digital video recorder or a tachograph. When the host computer 300 operates, its recorded image is transmitted to the main circuit board 23 via the external connector 25 and the circuit connection line 29. The controller 231 of the main circuit board 23 issues an access command to the flash memory device 233 so that the flash memory device 233 can store an image to be recorded by the host 300 according to the request of the access command.
When the data storage device 200 is in a fire scene, since the main board 23 is encased in the fireproof material 22 of the first casing 21, the fireproof material 22 in the first casing 21 will effectively isolate the high external temperature, so as to prevent the flash memory device 233 on the main board 23 from being burnt by the high temperature. In addition, the Circuit connection wire 29 is a Flexible Printed Circuit (FPC) or a Flexible Flat Cable (FFC). When the data storage device 200 is in a fire scene, the copper foil of the circuit wiring 291 on the circuit connection line 29 is blown by a heat source generated by the fire. Thus, the heat generated by fire will not be conducted to the motherboard 23 through the circuit connection 29, so as to ensure that the flash memory device 233 on the motherboard 23 is not affected by high temperature.
In addition, when the data storage device 200 is located at a fire site, the combustible sticker 215 on the first housing 21 will be burned by a heat source generated by the fire, so that the vent 212 of the first housing 21 is exposed, the fireproof material 22 inside the first housing 21 can directly contact with the outside air through the vent 212, and air convection can be formed between the vent 212 and the fireproof material 22. When a heat source generated by a fire is conducted to the fireproof material 22 through the first casing 21, the fireproof material 22 can dissipate heat through air convection between the fireproof material 22 and the ventilation opening 212, so as to prevent the main circuit board 23 covered inside the fireproof material 22 from smoldering. In addition, when the fire is over, the data storage device 200 can also be cooled down rapidly through the air convection formed between the ventilation opening 212 and the fireproof material 22, so as to avoid a high temperature state for a long time.
Continuing, many studies have shown that the data retention of flash memory devices (e.g., NAND FLASH) is mostly unaffected at temperatures below normal (T <40 ℃), but is significantly compromised once the temperature is above normal (T >40 ℃). For example, below normal temperature (T <40 ℃), data stored in a flash memory device should normally be preserved for more than five years, with the temperature rising to 60 ℃, data stored in a flash memory device can be preserved for about one year, and with the temperature further rising to above 85 ℃, data stored in a flash memory device may only be preserved for two or three days. Therefore, the data storage device 200 of the present invention has better thermal protection effect by the design of the fireproof material 22 and the ventilation opening 212, so as to prevent the data storage device 200 from being in a high temperature state, and further ensure the integrity of data storage.
The above description is only one preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, which is defined by the appended claims, and all changes and modifications that are equivalent to the shape, structure, characteristics and spirit of the invention are intended to be included therein.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A thermally protected data storage device, comprising:
a first housing having a plurality of ventilation openings;
the main circuit board comprises a controller and a plurality of flash memory components, wherein the controller is connected with the flash memory components, and the main circuit board is arranged in the first shell and is coated by a fireproof material; and
and the external connector is arranged outside the first shell and is electrically connected with the main circuit board through a circuit connecting wire.
2. A data storage device in accordance with claim 1 wherein said fire-blocking material is a ceramic fiber, a graphene, or a plastic fire-blocking material.
3. The data storage device of claim 1 wherein the circuit trace is a flexible circuit board or a flexible flat cable.
4. The data storage device of claim 1, further comprising an external circuit board, wherein the external connector is disposed on the external circuit board, and one end of the circuit connecting wire is electrically connected to the main circuit board and the other end is electrically connected to the external circuit board.
5. A thermally protected data storage device, comprising:
a first housing having a plurality of ventilation openings;
a second shell, which is arranged in the first shell and is coated by ceramic fiber or a plastic fireproof material;
the main circuit board is arranged in the second shell and comprises a controller and a plurality of flash memory components, and the controller is connected with the flash memory components; and
and the external connector is arranged outside the first shell and is electrically connected with the main circuit board through a circuit connecting wire.
6. A data storage device in accordance with claim 5 wherein said fire-blocking material is a ceramic fiber, a graphene, or a plastic fire-blocking material.
7. A data storage device in accordance with claim 5 wherein said electrical connection is a flexible circuit board or a flexible flat cable.
8. The data storage device of claim 5, further comprising an external circuit board, wherein the external connector is disposed on the external circuit board, and one end of the circuit connecting wire is electrically connected to the main circuit board and the other end is electrically connected to the external circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010090041.XA CN111312300B (en) | 2020-02-13 | 2020-02-13 | Data storage device with thermal protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010090041.XA CN111312300B (en) | 2020-02-13 | 2020-02-13 | Data storage device with thermal protection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111312300A true CN111312300A (en) | 2020-06-19 |
| CN111312300B CN111312300B (en) | 2022-12-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010090041.XA Active CN111312300B (en) | 2020-02-13 | 2020-02-13 | Data storage device with thermal protection |
Country Status (1)
| Country | Link |
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| CN (1) | CN111312300B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN111312300B (en) | 2022-12-20 |
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