High-safety circuit board

Abstract

The utility model relates to the field of circuit boards, in particular to a high-safety circuit board. The high-safety circuit board is mainly composed of the circuit board body, the gas storage frame box and the cooling fan, when the circuit board body is spontaneously ignited or other mechanical parts around the installation area of the circuit board body are burnt, the fusing metal sheet on the back face of the gas storage frame box is rapidly fused due to high temperature, and the circuit board is prevented from being damaged. The pressurized fire-fighting gas stored in the gas storage frame box is rapidly sprayed out and covers the back side of the circuit board body, meanwhile, the cooling fan pumps the fire-fighting gas to the hollowed-out groove of the circuit board body, the fire-fighting gas is sprayed out towards the front face along the hollowed-out groove of the circuit board body, and the sprayed fire-fighting gas is diffused all around under shielding of a chip on the front face of the circuit board. Fire-fighting gas is quickly diffused to the front and back surfaces of the circuit board. The technical problems that the circuit board cannot effectively provide full-coverage fireproof protection for the front and back surfaces, and the fireproof and fire extinguishing protection effects of the circuit board are affected are solved.

Description

Technical Field

[0001] The utility model relates to the field of circuit boards, in particular to a circuit board with high safety. Background Art

[0002] When the circuit board is used in a harsh environment, if the electrical components on it show short - circuit overheating, spontaneous combustion is likely to occur, posing a great potential safety hazard. Existing circuit boards already have the function of carrying a fire - extinguishing mechanism. For example, a circuit board base disclosed in patent CN219981136U. When spontaneous combustion occurs on the circuit board, the fire - extinguishing mechanism on the circuit board will automatically spray fire - extinguishing fluid onto the surface of the circuit board. This treatment method can extinguish the open fire in time. However, when the spontaneous combustion on the circuit board is on the side where the fire - extinguishing mechanism is not carried, or the device with spontaneous combustion comes from other mechanical components around the circuit board, it cannot effectively provide full - coverage fire protection for both the front and back sides of the circuit board, affecting the fire prevention and fire - extinguishing protection effects of the circuit board. Summary of the Utility Model

[0003] In order to overcome the shortcomings that the circuit board cannot effectively provide full - coverage fire protection for both the front and back sides, affecting the fire prevention and fire - extinguishing protection effects of the circuit board, the utility model provides a circuit board with high safety.

[0004] The technical solution of the utility model is: a circuit board with high safety, which includes a circuit board body, a gas storage box, back nozzles, back fusing metal sheets, and a cooling fan; a hollow - out groove structure is provided in the middle of the circuit board body; a gas storage box is fixedly connected to the circuit board body; no less than two back nozzles are connected to the gas storage box, and the outlet ends of the back nozzles are located on the back of the circuit board body; the outlet ends of the back nozzles are fixedly connected with back fusing metal sheets; a cooling fan is installed on the circuit board body; the air outlet of the cooling fan is aligned with the hollow - out groove of the circuit board body; an installation groove structure is provided on the front of the hollow - out groove of the circuit board body.

[0005] More preferably, the outlet ends of the back nozzles face the hollow - out groove of the circuit board body.

[0006] More preferably, a number of ventilation groove structures are provided on the installation groove structure of the circuit board body.

[0007] More preferably, no less than two front nozzles are connected to the gas storage box, the outlet ends of the front nozzles are exposed on the front of the circuit board body, and the outlet ends of the front nozzles face the hollow - out groove of the circuit board body; the outlet ends of the front nozzles are fixedly connected with front fusing metal sheets.

[0008] More preferably, the front nozzles are all set to be inclined structures facing away from the surface of the circuit board body.

[0009] More preferably, all the back nozzles are respectively located on the left and right sides of the circuit board body; all the front nozzles are respectively located on the left and right sides of the circuit board body.

[0010] More preferably, an emergency battery for separately powering the cooling fan is installed on the circuit board body.

[0011] Beneficial effects: A highly safe circuit board of the present utility model mainly consists of a circuit board body, a gas storage box, and a cooling fan. A hollow groove structure is provided in the middle of the circuit board body. When the circuit board body itself catches fire spontaneously or other mechanical components around the installation area of the circuit board body catch fire, the fuse metal sheet on the back of the gas storage box is quickly melted by high temperature, so that the pressurized fire-fighting gas stored in the gas storage box is quickly ejected and covers the back side of the circuit board body. At the same time, the cooling fan pumps the fire-fighting gas into the hollow groove of the circuit board body, so that the fire-fighting gas is ejected from the front along the hollow groove of the circuit board body, and the ejected fire-fighting gas diffuses around under the shielding of the chips on the front of the circuit board, realizing the rapid diffusion of the fire-fighting gas to both the front and back sides of the circuit board. In addition, the gas storage box is also provided with a fuse metal sheet on the front of the circuit board body. When the combustion phenomenon is located on the front of the circuit board body, the fuse metal sheet on the front of the circuit board body is preferentially melted, and the fire-fighting gas is sprayed onto the combustion area on the front of the circuit board body in the first time; it solves the technical problem that the circuit board cannot effectively provide full-coverage fire protection for both the front and back sides, affecting the fire prevention and extinguishing protection effects of the circuit board. Description of the Drawings

[0012] Figure 1 Is a three-dimensional view of the circuit board body according to the present utility model;

[0013] Figure 2 Is a top view of the circuit board body according to the present utility model;

[0014] Figure 3 Is a three-dimensional view of the circuit board body and the cooling fan according to the present utility model;

[0015] Figure 4 Is a partial three-dimensional view of the circuit board body and the gas storage box according to the present utility model.

[0016] Reference Signs: 1 - Circuit Board Body, 101 - Hollow Groove, 102 - Installation Groove, 103 - Ventilation Groove, 2 - Gas Storage Box, 21 - Back Nozzle, 22 - Back Fuse Metal Sheet, 23 - Front Nozzle, 24 - Front Fuse Metal Sheet, 3 - Cooling Fan, 4 - Emergency Battery. Detailed Embodiments

[0017] The embodiments of the present utility model will be described in detail below with reference to the drawings.

[0018] Embodiment

[0019] A highly safe circuit board, asFigures 1-4 As shown in the figure, it includes a circuit board body 1, a gas storage box 2, a back nozzle 21, a back fuse metal sheet 22, a cooling fan 3 and an emergency battery 4; a hollow groove 101 structure is provided in the middle of the circuit board body 1; an installation groove 102 structure is provided on the front of the hollow groove 101 of the circuit board body 1; a number of ventilation grooves 103 structures are provided on the installation groove 102 structure of the circuit board body 1; the back of the circuit board body 1 is fixedly connected with a gas storage box 2; four back nozzles 21 are connected to the gas storage box 2, and the outlet end of the back nozzle 21 is located on the back of the circuit board body 1, and the outlet end of the back nozzle 21 faces the hollow groove 101 of the circuit board body 1; a back fuse metal sheet 22 is fixedly connected to the outlet end of each of the four back nozzles 21; a cooling fan 3 is installed on the circuit board body 1; the air outlet of the cooling fan 3 is aligned with the hollow groove 101 of the circuit board body 1; an emergency battery 4 is installed on the circuit board body 1; the emergency battery 4 is electrically connected to the cooling fan 3.

[0020] As Figure 3 shown in the figure, four front nozzles 23 are connected to the gas storage box 2, and the outlet end of the front nozzle 23 is exposed on the front of the circuit board body 1, and the outlet end of the front nozzle 23 faces the hollow groove 101 of the circuit board body 1; a front fuse metal sheet 24 is fixedly connected to the outlet end of each of the four front nozzles 23.

[0021] As Figures 2-4 shown in the figure, all four front nozzles 23 are set as inclined structures facing away from the surface of the circuit board body 1; all the back nozzles 21 are located on the left and right sides of the circuit board body 1; all the front nozzles 23 are located on the left and right sides of the circuit board body 1.

[0022] In the gas storage box 2 of a high - safety circuit board of the present utility model, pressurized fire - fighting gas is stored, and a chip is installed in the installation groove 102 on the front of the circuit board body 1, and other electrical components are installed in the remaining areas on the front of the circuit board body 1. When the circuit board body 1 is connected to an external circuit for normal operation, the external circuit supplies power to the cooling fan 3 through the circuit system of the circuit board body 1. The cooling fan 3 directly blows air through the hollow groove 101 to the chip in the installation groove 102 for heat dissipation treatment. The blown air will diffuse in all directions of the circuit board body 1 through the ventilation grooves 103 around the installation groove 102 under the shielding of the chip, so as to simultaneously dissipate heat from the other electrical components around the chip on the front of the circuit board body 1, and improve the heat dissipation effect of the chip and the surrounding electrical components on the circuit board body 1.

[0023] When the circuit board body 1 itself catches fire spontaneously or other mechanical components around it catch fire, the back fusing metal sheet 22 on the back nozzle 21 of the circuit board body 1 will be melted by the high temperature. At this time, the pressurized fire-fighting gas in the gas storage box 2 will be ejected from the outlet end of the back nozzle 21 towards the hollow groove 101 of the circuit board body 1, so that a layer of fire-fighting gas continuously covers the back of the circuit board body 1. At the same time, the emergency battery 4 starts to supply power to the cooling fan 3 to prevent the external circuit connected to the circuit board body 1 from losing power when a fire breaks out. The cooling fan 3 quickly pumps the fire-fighting gas through the hollow groove 101 towards the chip. The fire-fighting gas diffuses in all directions on the front of the circuit board body 1 through the ventilation grooves 103 around the installation groove 102 under the blockage of the chip, realizing that the fire-fighting gas quickly covers both the front and back of the circuit board, and at the same time performing corresponding fire prevention and fire extinguishing treatments on both the front and back of the circuit board.

[0024] When the combustion phenomenon comes from the electrical components on the front of the circuit board body 1, the front fusing metal sheet 24 on the front nozzle 23 located on the front of the circuit board body 1 is preferentially melted. At this time, the pressurized fire-fighting gas in the gas storage box 2 will be ejected from the outlet end of the front nozzle 23 in an inclined upward manner to prevent the ejected fire-fighting gas from being blocked by the electrical components around the outlet end of the front nozzle 23. Subsequently, the fire-fighting gas ejected in an inclined upward manner quickly covers the front of the circuit board body 1, isolating the electrical components on the front of the circuit board body 1 where the combustion phenomenon occurs from the external air, causing the electrical components on the circuit board body 1 where the combustion phenomenon occurs to lose oxygen and be extinguished, realizing the automatic fire extinguishing treatment of the electrical components on the front of the circuit board body 1.

[0025] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the gist of the present invention.

Claims

1. A high-security circuit board, comprising: a circuit board body (1); Features: It also includes an air storage frame box (2); the air storage frame box (2) is fixedly connected to the circuit board body (1); the air storage frame box (2) is connected to no less than two back nozzles (21), and the outlet end of the back nozzle (21) is located on the back of the circuit board body (1); the outlet end of the back nozzle (21) is fixedly connected to a back fuse metal sheet (22); a heat dissipation fan (3) is installed on the circuit board body (1); the air outlet of the heat dissipation fan (3) is aligned with the hollow groove (101) of the circuit board body (1); and a mounting groove (102) structure is provided on the front of the hollow groove (101) of the circuit board body (1).

2. A high-security circuit board according to claim 1, characterized in that: The outlet end of the rear nozzle (21) faces the hollow groove (101) of the circuit board body (1).

3. A high-security circuit board according to claim 1, characterized in that: A plurality of ventilation slots (103) structures are provided on the mounting groove (102) structure of the circuit board body (1).

4. A high-security circuit board according to claim 1, characterized in that: The gas storage frame box (2) is connected to at least two front nozzles (23), the outlet ends of the front nozzles (23) are exposed to the front of the circuit board body (1), and the outlet ends of the front nozzles (23) face the hollow grooves (101) of the circuit board body (1); the outlet ends of the front nozzles (23) are fixedly connected to the front fuse metal sheets (24).

5. A high-security circuit board according to claim 4, characterized in that: The front nozzles (23) are all arranged to be inclined structures facing away from the surface of the circuit board body (1).

6. A high-security circuit board according to claim 4, characterized in that: All rear-side spray heads (21) are respectively located on the left and right sides of the circuit board body (1); and all front-side spray heads (23) are respectively located on the left and right sides of the circuit board body (1).

7. A high-security circuit board according to any one of claims 1 to 6, characterized in that: An emergency battery (4) for independently supplying power to the cooling fan (3) is installed on the circuit board body (1).

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