High-protection chip fireproof box

Abstract

The invention discloses a high-protection chip fireproof box which comprises a packaging shell, a core box arranged in the packaging shell, a fireproof cotton layer arranged between the core box and the packaging shell, a chip protection box arranged in the core box, a chip installed in the chip protection box and a flexible circuit board electrically connected with the chip. The flexible circuit board penetrates through the chip protection box, the core box, the fireproof cotton layer and the packaging shell and then extends out of the packaging shell. The packaging shell provided by the invention can provide a firm storage space, so that the packaging shell is not easy to deform when being extruded, and a chip stored in the packaging shell is protected; the fireproof cotton layer can provide a fireproof effect to prevent external high temperature from causing thermal damage to the chips stored inside; the chip protection box can provide a good waterproof effect, and water is prevented from intruding into the chip protection box; the effects of fire prevention, water prevention and extrusion deformation prevention are achieved for the storage chip.

Description

Technical Field

[0001] This invention relates to the field of fireproof box technology, and more particularly to a highly protective chip fireproof box. Background Technology

[0002] In devices that require recording (such as dashcams and action cameras), the memory chips themselves need special protection to ensure the data is stored. This protection includes fire resistance, water resistance, and resistance to deformation from pressure. The traditional method involves placing the memory chip in a protective box and sealing it with potting compound. A flexible circuit board is used to connect the chip to external circuitry. While this method provides water resistance, it doesn't offer good fire protection and has poor heat dissipation. Furthermore, when subjected to pressure, the force can directly impact the memory chip, potentially damaging it and affecting data retrieval.

[0003] Therefore, existing technologies have shortcomings and need to be improved. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a highly protective fireproof box for chips, which can achieve the effects of fireproofing, waterproofing and preventing extrusion deformation of memory chips.

[0005] The technical solution of this invention is as follows: A high-protection chip fireproof box is provided, comprising: an encapsulation shell, a core box disposed within the encapsulation shell, a fireproof cotton layer disposed between the core box and the encapsulation shell, a chip protection box disposed within the core box, a chip installed within the chip protection box, and a flexible circuit board electrically connected to the chip; the flexible circuit board extends to the outside of the encapsulation shell after passing through the chip protection box, the core box, the fireproof cotton layer, and the encapsulation shell. The encapsulation shell provides space for the fireproof box and can be easily deformed under pressure. The fireproof cotton layer is used for fire protection. The core box provides space for the chip protection box to be installed. Simultaneously, phase change material is injected into the core box to achieve heat dissipation for the chip protection box and maintain the chip's operating performance. The chip protection box is used to store the chip, and the flexible circuit board is used to enable communication between the chip and external circuits.

[0006] Furthermore, the chip is soldered onto the flexible circuit board, which has two sets of gold fingers. One set of gold fingers is located inside the chip protective box, and the other set is located outside the package. By using two sets of gold fingers, even if the gold fingers on the outside of the package are damaged, the gold fingers inside the chip protective box can still be used to read the chip's data, facilitating application.

[0007] Furthermore, the high-protection chip fireproof box also includes a reinforcing plate attached to the flexible circuit board, the reinforcing plate being disposed on the other side of the flexible circuit board where the chip and two sets of gold fingers are located. The reinforcing plate is used to strengthen the strength of certain areas, facilitating production and use.

[0008] Furthermore, the highly protective chip fireproof box also includes a thermally conductive silicone layer adhered inside the chip protection box. The thermally conductive silicone layer is disposed on the front side of the chip and the back side of the flexible circuit board area where the chip is attached. The thermally conductive silicone layer is used to quickly conduct the heat generated by the chip to the chip protection box.

[0009] Furthermore, the chip protection box includes: a cavity upper cover, a cavity lower cover that mates with the cavity upper cover, and a sealing assembly sandwiched between the cavity upper cover and the cavity lower cover; the sealing assembly includes: a sealing upper cover, a sealing lower cover that mates with the sealing upper cover, and a sealing ring connected to the sealing lower cover; the chip is disposed within the sealing ring, and the sealing upper cover and the sealing lower cover clamp the flexible circuit board; the cavity upper cover and the cavity lower cover are connected by snap-fit ​​and / or riveting. The sealing assembly, together with the cavity upper cover and the cavity lower cover, forms a sealed space for placing the chip, thereby achieving waterproofing of the chip.

[0010] Furthermore, the chip protection box also includes: several rolled-edge vertical plates connected to the lower cavity cover, and positioning inserts connected to the upper cavity cover; the upper cavity cover is positioned between the rolled-edge vertical plates on two opposite sides of the lower cavity cover, and the rolled-edge vertical plates press against the upper cavity cover after being rolled; a positioning groove is formed between two adjacent rolled-edge vertical plates, and the positioning inserts cooperate with the positioning groove; a buckle is provided on the rolled-edge vertical plate, and the buckle cooperates with the upper cavity cover. The cooperation of the positioning inserts and the positioning groove enables the upper cavity cover and the lower cavity cover to be quickly and accurately positioned. The cooperation of the buckle with the upper cavity cover enables the upper cavity cover to be initially fixed, while preventing the sealing component from shifting, thus playing a role in fixing and limiting the sealing component. This facilitates subsequent riveting and rolling of the rolled-edge vertical plates, thereby firmly securing the upper cavity cover and connecting the upper cavity cover and the lower cavity cover.

[0011] Furthermore, the lower sealing cover is provided with several positioning posts, and the upper sealing cover is provided with several positioning holes, which cooperate with the positioning posts; all the positioning posts are arranged in two rows, and the flexible circuit board is disposed between the two rows of positioning posts, which serve to limit the movement of the flexible circuit board; the upper cavity cover is provided with an upper clamping strip, which presses against the upper sealing cover, and the lower cavity cover is provided with a lower clamping strip, which presses against the lower sealing cover. The cooperation between the positioning holes and the positioning posts allows the upper and lower sealing covers to be accurately aligned.

[0012] Further, the core box includes: an outer box with an opening, a middle box with an inlet, and a cover plate connected to the middle box; the chip protection box is inserted into the middle box through the inlet, the cover plate covers the opening of the outer box, the cover plate has a first screw hole, the chip protection box includes a mounting plate, the mounting plate has a second screw hole, the first screw hole and the second screw hole mate; the outer box has a first liquid inlet and a vent hole, the middle box has a second liquid inlet, the first liquid inlet and the vent hole are sealed with double-sided copper foil; the surface of the mounting plate is coated with a sealant layer to seal the gap between the cover plate and the mounting plate and to seal the positions of the screws locking the first screw hole and the second screw hole. The middle box is used to install the chip protection box, and the chip protection box can be installed on the middle box by screws passing through the first screw hole and the second screw hole. Phase change material can enter the outer and middle boxes through the first and second liquid inlets. After absorbing heat, the phase change material turns into a gaseous state. Under sufficient pressure, the gaseous phase change material squeezes out the double-conducting copper foil paper and is discharged to the outside of the core box through the first liquid inlet, the vent hole, and the second liquid inlet.

[0013] Furthermore, the encapsulation shell includes: an upper encapsulation cover, a lower encapsulation cover connected to the upper encapsulation cover, the lower encapsulation cover having a plate hole through which the flexible circuit board passes.

[0014] Furthermore, the upper surface of the encapsulation cover is provided with two locking grooves; the lower encapsulation cover includes: a base plate, two supporting uprights and two locking uprights respectively connected to the base plate, and a locking rolled edge connected to the locking uprights; the two supporting uprights face each other, the two locking uprights face each other, the encapsulation cover is placed on the supporting uprights, and the locking rolled edge is bent to the locking groove and fastened; the upper ends of the supporting uprights are provided with insertion grooves; the encapsulation cover includes: a cover plate body, and insertion plates respectively connected to the two ends of the cover plate body; the two insertion plates are respectively inserted into the insertion grooves of the two supporting uprights; the two locking grooves are provided on the cover plate body. The encapsulation cover placed on the supporting uprights can provide strong support and will not easily deform when subjected to pressure, thereby protecting the chip stored inside.

[0015] Furthermore, the upper packaging cover also includes a skirt plate connected to the cover plate body, the skirt plate fastening the supporting upright plate; the lower packaging cover also includes a side plate connected to the locking upright plate, the side plate fastening the supporting upright plate. The skirt plate and side plate are used to further strengthen the packaging shell.

[0016] Using the above solution, the present invention provides a highly protective chip fireproof box. The encapsulation shell provides a robust storage space, preventing easy deformation under pressure and thus protecting the internally stored chip. The fireproof cotton layer provides a fireproof effect, preventing external high temperatures from causing thermal damage to the internally stored chip. The chip protection box provides good waterproof performance, preventing water from entering the chip protection box. The core box, in conjunction with phase change material, enables good heat dissipation for the chip inside the chip protection box. This achieves the effects of fireproofing, waterproofing, and preventing deformation under pressure for the storage chip. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a structure according to an embodiment of the present invention; Figure 2 for Figure 1 Cross-sectional view of the embodiment; Figure 3 for Figure 1 A cross-sectional view from another perspective of the embodiment; Figure 4 for Figure 1 Exploded view of the embodiment; Figure 5 This is an exploded view of the packaging box; Figure 6 A schematic diagram of the packaging box during the packaging process; Figure 7 A schematic diagram of the structure of a chip, flexible circuit board, and gold fingers; Figure 8 This is an assembly diagram of the core box and chip protection box; Figure 9 This is an exploded view of the core box. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0019] Please see Figures 1-9This invention provides a highly protective fireproof chip box, comprising: a packaging shell, a core box disposed within the packaging shell, a fireproof cotton layer 10 disposed between the core box and the packaging shell, a chip protection box disposed within the core box, a chip 11 installed within the chip protection box, and a flexible circuit board 12 electrically connected to the chip 11; the flexible circuit board 12 extends beyond the packaging shell after passing through the chip protection box, the core box, the fireproof cotton layer 10, and the packaging shell. The packaging shell provides space for the fireproof box and can be easily deformed under pressure. The fireproof cotton layer 10 is used for fire protection. The core box provides space for the chip protection box. Simultaneously, filling the core box with phase change material can achieve heat dissipation for the chip protection box, maintaining the working performance of the chip 11. The chip protection box stores the chip 11, and the flexible circuit board 12 enables communication between the chip 11 and external circuits.

[0020] In this embodiment, the chip 11 is soldered onto the flexible circuit board 12. The flexible circuit board 12 is provided with two sets of gold fingers 13. One set of gold fingers 13 is located inside the chip protective box, and the other set is located outside the package shell. By using two sets of gold fingers 13, even if the gold fingers 13 on the outside of the package shell are damaged, the gold fingers 13 inside the chip protective box can still be used to read the data of the chip 11, which is convenient for application.

[0021] In this embodiment, the high-protection chip fireproof box further includes a reinforcing plate 14 attached to the flexible circuit board 12. The reinforcing plate 14 is disposed on the other side of the flexible circuit board 12 where the chip 11 and two sets of gold fingers 13 are located. The reinforcing plate 14 is used to strengthen the strength of certain areas, facilitating production and use. The reinforcing plate 14 is an FR4 board.

[0022] In this embodiment, the high-protection chip fireproof box further includes a thermally conductive silicone layer 15 adhered inside the chip protection box. The thermally conductive silicone layer is disposed on the front side of the chip 11 and the back side of the flexible circuit board 12 area to which the chip 11 is attached. The thermally conductive silicone layer 15 is used to quickly conduct the heat generated by the chip 11 to the chip protection box.

[0023] In this embodiment, the chip protection box includes: a cavity upper cover 16, a cavity lower cover 17 that mates with the cavity upper cover 16, and a sealing assembly sandwiched between the cavity upper cover 16 and the cavity lower cover 17; the sealing assembly includes: a sealing upper cover 18, a sealing lower cover 19 that mates with the sealing upper cover 18, and a sealing ring 20 connected to the sealing lower cover 19; the chip 11 is disposed within the sealing ring 20, and the sealing upper cover 18 and the sealing lower cover 19 clamp the flexible circuit board 12; the cavity upper cover 16 and the cavity lower cover 17 are connected by snap-fit ​​and / or riveting. The sealing assembly, together with the cavity upper cover 16 and the cavity lower cover 17, forms a sealed space for placing the chip 11, thereby achieving waterproofing of the chip 11.

[0024] In this embodiment, the chip protection box further includes: a plurality of rolled edge vertical plates 21 connected to the lower cavity cover 17, and positioning inserts 22 connected to the upper cavity cover 16; the upper cavity cover 16 is disposed between the rolled edge vertical plates 21 on two opposite sides of the lower cavity cover 17, and the rolled edge vertical plates 21 press against the upper cavity cover 16 after being rolled; a positioning groove is formed between two adjacent rolled edge vertical plates 21, and the positioning inserts 22 cooperate with the positioning groove; a buckle 23 is provided on the rolled edge vertical plate 21, and the buckle 23 cooperates with the upper cavity cover 16. The positioning insert 22 and the positioning groove cooperate to enable the upper cover 16 and the lower cover 17 of the cavity to be quickly and accurately positioned. The buckle 23 cooperates with the upper cover 16 of the cavity to initially fix the upper cover 16 of the cavity, and at the same time prevent the sealing component from shifting, and play the role of fixing and limiting the sealing component. This facilitates the subsequent pressing and riveting of the rolled edge vertical plate 21, thereby firmly fastening the upper cover 16 of the cavity and realizing the connection between the upper cover 16 of the cavity and the lower cover 17 of the cavity.

[0025] In this embodiment, the lower sealing cover 19 is provided with a plurality of positioning posts 24, and the upper sealing cover 18 is provided with a plurality of positioning holes 25, the positioning holes 25 cooperating with the positioning posts 24; all the positioning posts 24 are arranged in two rows, and the flexible circuit board 12 is disposed between the two rows of positioning posts 24; the two rows of positioning posts 24 serve to limit the flexible circuit board 12; the upper cavity cover 16 is provided with an upper pressing strip 26, the upper pressing strip 26 pressing against the upper sealing cover 18; the lower cavity cover 17 is provided with a lower pressing strip 27, the lower pressing strip 27 pressing against the lower sealing cover 19. The cooperation between the positioning holes 25 and the positioning posts 24 allows the upper sealing cover 18 and the lower sealing cover 19 to be accurately aligned.

[0026] In this embodiment, the core box includes: an outer box 28 with an opening, a middle box 29 with an inlet, and a cover plate 30 connected to the middle box 29; the chip protection box is inserted into the middle box 29 through the inlet, the cover plate 30 covers the opening of the outer box 28, the cover plate 30 is provided with a first screw hole 31, the chip protection box includes a mounting plate 32, the mounting plate 32 is provided with a second screw hole 33, the first screw hole 31 and the second screw hole 33 cooperate; the outer box 28 is provided with a first liquid inlet 34 and a vent 35, the middle box 29 is provided with a second liquid inlet 36, the first liquid inlet 34 and the vent 35 are sealed with double-copper foil paper 37; the surface of the mounting plate 32 is coated with a sealing adhesive layer 51 to seal the gap between the cover plate 30 and the mounting plate 32 and to seal the positions where the screws lock the first screw hole 31 and the second screw hole 33. The middle box 29 is used to install the chip protection box. Screws pass through the first screw hole 31 and the second screw hole 33 to install the chip protection box on the middle box 29. The phase change material can enter the outer box 28 and the middle box 29 through the first liquid inlet hole 34 and the second liquid inlet hole 36. After absorbing heat, the phase change material becomes gaseous. Under sufficient pressure, the gaseous phase change material squeezes out the double-conducting copper foil paper 37 and is discharged to the outside of the core box through the first liquid inlet hole 34, the vent hole 35, and the second liquid inlet hole 36.

[0027] In this embodiment, the encapsulation shell includes: an upper encapsulation cover 38, and a lower encapsulation cover 39 connected to the upper encapsulation cover 38. The lower encapsulation cover 39 is provided with a plate hole 50, through which the flexible circuit board 12 passes.

[0028] In this embodiment, the upper surface of the encapsulation cover 38 is provided with two locking grooves 44; the lower encapsulation cover 39 includes: a base plate 40, two supporting uprights 41 and two locking uprights 42 respectively connected to the base plate 40, and a locking rolled edge 43 connected to the locking uprights 42; the two supporting uprights 41 are opposite to each other, the two locking uprights 42 are opposite to each other, the encapsulation cover 38 is placed on the supporting uprights 41, and the locking rolled edge 43 is bent to the locking grooves 44 and fastened; the upper two ends of the supporting uprights 41 are provided with insertion grooves 45; the encapsulation cover 38 includes: a cover plate body 46, and insertion plates 47 respectively connected to the two ends of the cover plate body 46; the two insertion plates 47 are respectively inserted into the insertion grooves 45 of the two supporting uprights 41; the two locking grooves 44 are provided on the cover plate body 46. The encapsulation cover 38 is placed on the support plate 41, which can provide strong support and will not easily deform when squeezed, thereby protecting the chip 11 stored inside.

[0029] In this embodiment, the upper packaging cover 38 further includes a skirt plate 48 connected to the cover plate body 46, the skirt plate 48 fastening the supporting upright plate 41; the lower packaging cover 39 further includes a side plate 49 connected to the locking upright plate 42, the side plate 49 fastening the supporting upright plate 41. The skirt plate 48 and the side plate 49 are used to further strengthen the strength of the packaging shell.

[0030] In summary, this invention provides a highly protective fireproof chip box. The encapsulation shell provides a robust storage space, preventing easy deformation under pressure and thus protecting the internally stored chip. The fireproof cotton layer provides a fireproof effect, preventing external high temperatures from causing thermal damage to the internally stored chip. The chip protection box provides excellent waterproofing, preventing water from entering the chip protection box. The core box, in conjunction with a phase change material, enables good heat dissipation for the chip inside the chip protection box. This achieves fireproof, waterproof, and compression-resistant protection for the storage chip.

[0031] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A highly protective chip fireproof box, characterized in that, include: The package includes a housing, a core box located within the housing, a fireproof cotton layer located between the core box and the housing, a chip protection box located within the core box, a chip installed within the chip protection box, and a flexible circuit board electrically connected to the chip. The flexible circuit board extends to the outside of the housing after passing through the chip protection box, the core box, the fireproof cotton layer, and the housing.

2. The high-protection chip fireproof box according to claim 1, characterized in that, The chip is soldered onto the flexible circuit board, which is provided with two sets of gold fingers. One set of gold fingers is located inside the chip protective box, and the other set of gold fingers is located outside the packaging shell. It also includes: a reinforcing plate attached to the flexible circuit board, the reinforcing plate being disposed on the other side of the flexible circuit board where the chip and two sets of gold fingers are located.

3. The high-protection chip fireproof box according to claim 1, characterized in that, Also includes: A thermally conductive silicone layer is adhered inside the chip protective box, and the thermally conductive silicone is disposed on the front side of the chip and the back side of the flexible circuit board area on which the chip is attached.

4. The high-protection chip fireproof box according to claim 1, characterized in that, The chip protection box includes: a cavity upper cover, a cavity lower cover that mates with the cavity upper cover, and a sealing assembly sandwiched between the cavity upper cover and the cavity lower cover; the sealing assembly includes: a sealing upper cover, a sealing lower cover that mates with the sealing upper cover, and a sealing ring connected to the sealing lower cover; the chip is disposed within the sealing ring, and the sealing upper cover and the sealing lower cover sandwich the flexible circuit board; the cavity upper cover and the cavity lower cover are connected by snap-fit ​​and / or riveting.

5. A high-protection chip fireproof box according to claim 4, characterized in that, The chip protection box further includes: several rolled-edge vertical plates connected to the lower cover of the cavity, and positioning inserts connected to the upper cover of the cavity; the upper cover of the cavity is disposed between the rolled-edge vertical plates on two opposite sides of the lower cover of the cavity, and the rolled-edge vertical plates press against the upper cover of the cavity after being rolled; a positioning groove is formed between two adjacent rolled-edge vertical plates, and the positioning inserts cooperate with the positioning groove; a buckle is provided on the rolled-edge vertical plate, and the buckle cooperates with the upper cover of the cavity.

6. A high-protection chip fireproof box according to claim 4, characterized in that, The lower sealing cover is provided with a plurality of positioning posts, and the upper sealing cover is provided with a plurality of positioning holes, the positioning holes cooperating with the positioning posts; all the positioning posts are arranged in two rows, and the flexible circuit board is arranged between the two rows of positioning posts; the upper cavity cover is provided with an upper pressing strip, the upper pressing strip pressing against the upper sealing cover, and the lower cavity cover is provided with a lower pressing strip, the lower pressing strip pressing against the lower sealing cover.

7. A high-protection chip fireproof box according to claim 1, characterized in that, The core box includes: an outer box with an opening, a middle box with an inlet, and a cover plate connected to the middle box; the chip protection box is inserted into the middle box through the inlet, the cover plate covers the opening of the outer box, the cover plate has a first screw hole, the chip protection box includes a mounting plate, the mounting plate has a second screw hole, the first screw hole and the second screw hole are engaged; the outer box has a first liquid inlet and a vent hole, the middle box has a second liquid inlet, the first liquid inlet and the vent hole are sealed with double-sided copper foil paper; the surface of the mounting plate is coated with a sealant layer to seal the gap between the cover plate and the mounting plate and to seal the positions of the screws locking the first screw hole and the second screw hole.

8. A high-protection chip fireproof box according to claim 1, characterized in that, The encapsulation shell includes: an upper encapsulation cover, a lower encapsulation cover connected to the upper encapsulation cover, the lower encapsulation cover having a plate hole, and the flexible circuit board passing through the plate hole.

9. A high-protection chip fireproof box according to claim 8, characterized in that, The upper surface of the encapsulation cover is provided with two locking grooves; the lower encapsulation cover includes: a base plate, two supporting uprights and two locking uprights respectively connected to the base plate, and a locking rolled edge connected to the locking uprights; the two supporting uprights are opposite to each other, the two locking uprights are opposite to each other, the encapsulation cover is placed on the supporting uprights, and the locking rolled edge is bent to the locking groove and fastened; the upper ends of the supporting uprights are provided with insertion grooves; the encapsulation cover includes: a cover plate body, and insertion plates respectively connected to the two ends of the cover plate body; the two insertion plates are respectively inserted into the insertion grooves of the two supporting uprights; the two locking grooves are provided on the cover plate body.

10. A high-protection chip fireproof box according to claim 9, characterized in that, The upper cover of the package also includes a skirt plate connected to the cover plate body, the skirt plate fastening the support plate; the lower cover of the package also includes a side plate connected to the locking plate, the side plate fastening the support plate.

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