Spool, pressure relief valve, and fireproof data storage liner

Abstract

The application discloses a valve core, a pressure relief valve and a fireproof data storage inner container, relates to the technical field of data storage, and a valve core, which comprises a locking part, a containing cavity is formed in the locking part, and the containing cavity is provided with a first opening; and a low-melting-point sealing block is arranged in the containing cavity and seals the first opening. The application does not need to additionally arrange elastic parts, movable parts or sealing assemblies and other structures, is simple and reliable in structure, is not prone to failure in frequent vibration, is higher in reliability, and the low-melting-point sealing block is arranged in the containing cavity, so that after high-temperature and high-pressure steam is sprayed out, the temperature of the low-melting-point sealing block will drop below the melting point along with the pressure drop in the inner container, the remaining low-melting-point sealing block in the containing cavity can solidify to reseal the first opening, and waiting for the next pressure relief.

Description

Technical Field

[0001] This invention relates to the field of data storage technology, and in particular to a valve core, a pressure relief valve, and a fireproof data storage liner. Background Technology

[0002] Currently, some in-vehicle devices, such as dashcams, typically store vehicle data using built-in hard drives or SD cards. In the event of an accident leading to a fire, crash, or submersion in water, inadequate protection can damage the data storage device (e.g., built-in hard drive or SD card), rendering the driving data unreadable and hindering the determination of the accident's cause. Therefore, data disaster recovery storage devices have emerged to preserve the data storage. While impact and submersion protection are relatively mature technologies, fire protection is difficult to implement within the constraints of cost and size.

[0003] Existing pressure relief valves used in storage devices have complex valve core structures. The valve core includes a movable element and a resilient element. The movable element can move between a first position and a second position to close or open the pressure relief orifice. The resilient element provides elasticity to the movable element towards the first position. Such valve cores are prone to failure during frequent vibrations, resulting in poor reliability. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defect of poor valve core reliability in the prior art, and to provide a valve core, a pressure relief valve and a fireproof data storage liner.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] A valve core, the valve core comprising:

[0007] A locking member, wherein a receiving cavity is formed inside the locking member, and the receiving cavity is provided with a first opening;

[0008] A low-melting-point sealing block is disposed within the receiving cavity and seals the first opening.

[0009] In this design, the valve core achieves the following effects: The valve core has a simple and reliable structure. A low-melting-point sealing block is installed within the locking component's receiving cavity. This low-melting-point sealing block seals the first opening, thus blocking the connection between the first opening and the outside. The coolant in the fireproof data storage liner cannot flow out or evaporate from the second opening. When the ambient temperature of the valve core rises to the melting point of the low-melting-point sealing block, the block melts. Under certain pressure, it can no longer seal the first opening, allowing the internal coolant to be discharged as high-temperature, high-pressure steam, thereby achieving precise pressure relief under constant temperature and pressure conditions. Compared to existing valve cores, this design eliminates the need for additional elastic components, moving parts, or sealing assemblies. Its simple and reliable structure makes it less prone to failure under frequent vibrations, resulting in higher reliability. Furthermore, since the low-melting-point sealing block is located within the receiving cavity, after the high-temperature, high-pressure steam is ejected, its temperature drops below the melting point as the pressure in the liner decreases. The remaining low-melting-point sealing block in the receiving cavity can solidify and reseal the first opening, awaiting the next pressure relief.

[0010] Preferably, the receiving cavity includes a horizontal segment and a conical segment, the conical segment being located between the first opening and the horizontal segment, the conical segment gradually converging towards the first opening, and the horizontal segment forming an obtuse angle with the conical segment.

[0011] In this design, the horizontal section and the conical section can form a large containment space. The conical section gradually converges towards the first opening, which is conducive to the accumulation of liquid at the first opening after the low-melting-point sealing block melts, so as to seal the first opening. When the pressure is released, after the gas is ejected, the remaining low-melting-point sealing block can more easily reseal the first opening through the accumulation effect of the conical section.

[0012] Preferably, the receiving cavity includes a first region, a second region, and a third region along the depressurization direction, wherein the diameter of the second region is smaller than that of the first region and the third region.

[0013] In this design, the receiving cavity has a structure that is large at both ends and narrow in the middle. This structure increases the contact area between the low-melting-point sealing block and the locking element, thereby enhancing the sealing and firmness of the connection between the low-melting-point sealing block and the receiving cavity. Furthermore, this structure further strengthens the firmness and sealing of the low-melting-point sealing block and the locking element when the low-melting-point sealing block solidifies within the receiving cavity. In addition, since the low-melting-point sealing block is prone to oxidation and cracking during long-term use, leading to sealing failure, the low-melting-point sealing block located in the second region does not come into contact with air, thus preventing oxidation failure. Moreover, under the combined effect of the structure and tension, the low-melting-point sealing block in the second region is almost crack-free. The structure of the receiving cavity enhances the oxidation and cracking resistance of the low-melting-point sealing block, effectively ensuring the sealing performance of the pressure relief valve and improving the reliability of the valve core.

[0014] Preferably, the diameter of the first region and / or the third region gradually increases from the direction closer to the second region to the direction farther away from the second region.

[0015] In this solution, 1. The first region and / or the third region will form a conical structure. As the temperature changes, a certain pressure difference will be generated inside and outside the valve core. When the pressure is applied to the end face of the first region or the third region, most of the force will be applied to the conical surface inside the cavity. Only a very small part of the pressure will be applied to the low melting point sealing block in the second region. This ensures that the low melting point sealing block in the second region will not fail due to normal external force, greatly enhancing the overall sealing life and reliability of the valve core. 2. Furthermore, in this structure, when the low-melting-point sealing block is transferring heat, the high external temperature is first transferred to the second region through the third region. Due to the small diameter of the second region, there is some resistance during the heat transfer from the second region to the first region. The heat is introduced into the second region in a limited and slow manner. When the heat is conducted to the low-melting-point sealing block in the first region, the volume of the low-melting-point sealing block increases, and the contact area with the internal liquid is larger, allowing the heat to be quickly absorbed by the liquid. At this time, the temperature difference between the low-melting-point sealing block in the first region and the internal liquid is small, so the temperature of the first region will be lower than that of the third and second regions. In most cases, the low-melting-point sealing block in the first region will melt last. Only when the internal temperature reaches the melting point of the low-melting-point sealing block in the first region will the low-melting-point sealing block melt and release pressure. When the internal temperature does not reach the melting point of the low-melting-point sealing block in the first region, the low-melting-point sealing block in the part of the first region that is close to the second region will soften due to its higher temperature. Under the action of the conical structure, the low-melting-point sealing block can further enhance the sealing performance when it is squeezed, which can ensure that the valve core will not fail prematurely.

[0016] Preferably, the receiving cavity further includes an expansion portion disposed at the third region, the expansion portion being used to receive the low melting point sealing block.

[0017] In this solution, by adding an expansion section, the accommodating space of the low-melting-point sealing block can be further increased, so that after the first depressurization, the remaining low-melting-point sealing block can more easily seal the first opening a second time.

[0018] Preferably, the low-melting-point sealing block is matched to the shape of the receiving cavity.

[0019] In this design, the low-melting-point sealing block fills the entire receiving cavity, making the connection between the low-melting-point sealing block and the receiving cavity more reliable and less prone to falling off, thus enhancing the overall reliability of the valve core.

[0020] Preferably, the locking element is made of metal and has a plating treatment on its surface.

[0021] In this design, the combination of metal material and low-melting-point sealing block is good, which helps to enhance the long-term effectiveness of the valve core as a whole.

[0022] Preferably, the locking element is made of stainless steel and its surface is silver-plated.

[0023] In this solution, the thermal conductivity of stainless steel is relatively poor compared to that of the low-melting-point sealing block. External temperature will be conducted to the interior more quickly through the low-melting-point sealing block. Silver plating on the surface of the locking component helps the silver plating layer of the low-melting-point sealing block and the locking component to form an integrated and strong alloy layer at the joint surface. This ensures that the joint surface of the two materials can always maintain long-term effective sealing regardless of vibration or large temperature changes that cause thermal expansion and contraction.

[0024] A pressure relief valve includes a valve body, the valve body having a receiving groove, the bottom of the receiving groove having a second opening, characterized in that the pressure relief valve further includes a valve core as described above, the locking member being disposed within the receiving groove, and the receiving cavity communicating with the second opening through the first opening.

[0025] In this solution, the pressure relief valve uses the aforementioned valve core, which has a simple and reliable structure. It is not prone to failure under frequent vibration, has higher reliability, and can greatly extend the service life of the pressure relief valve.

[0026] Preferably, the locking member is threadedly connected to the receiving groove.

[0027] In this solution, the threaded connection structure is simple, and the connection between the locking element and the receiving groove is reliable and easy to disassemble.

[0028] Preferably, the locking member has a fastening groove at the end away from the receiving groove.

[0029] In this design, a fastening groove is provided to facilitate the use of fastening tools such as screwdrivers to fasten the locking components.

[0030] Preferably, the pressure relief valve further includes a seal disposed around the first opening between the bottom of the receiving groove and the locking member.

[0031] In this solution, by placing the seal between the receiving groove and the locking element, the seal is compressed when the locking element is installed, which enhances the sealing effect.

[0032] A fireproof data storage liner includes an inner liner body and a pressure relief valve as described above. The inner liner body is provided with a pressure relief hole, and the pressure relief valve is located at the pressure relief hole.

[0033] In this solution, the pressure relief valve is highly reliable and is not prone to failure under frequent vibration. The pressure relief of the fireproof data storage tank using the above-mentioned pressure relief valve is more stable, thereby enhancing the reliability of the fireproof data storage device. Furthermore, the connection between the valve body and the tank is more convenient, which helps to enhance the sealing performance at the pressure relief port.

[0034] Preferably, the fireproof data storage liner further includes a sealing and protective part, which is disposed at the end of the pressure relief valve away from the liner body and closes the pressure relief valve.

[0035] In this design, the sealing and protective section not only enhances the sealing performance of the pressure relief valve but also acts as a barrier to high-pressure gas during pressure relief, preventing damage to external components. Furthermore, the sealing and protective section can prevent the intrusion of foreign objects. The sealing and protective section can be made of polyimide tape.

[0036] Preferably, the inner liner body has a water-soluble storage section inside, which dissolves in water, and the water-soluble storage section is provided with water-absorbing material.

[0037] In this solution, the ratio of water to absorbent material in the inner tank needs to be precise. By pre-setting a certain amount of absorbent material in the water-soluble storage section, and since the volume of the inner tank is known, the required amount of absorbent material can be quantitatively calculated. By placing the water-soluble storage section in advance within the inner tank, simply adding water to the inner tank achieves a precise water-to-absorbent material ratio. This not only improves production efficiency but also enhances the accuracy of the water-absorbent material-to-water ratio. The water-soluble storage section dissolves upon contact with water, dispersing the absorbent material within the water, thus ensuring that the absorbent material does not prematurely degrade.

[0038] A fireproof data storage liner includes an inner liner body and a valve core as described above, wherein the inner liner body is provided with a pressure relief hole and the valve core is disposed at the pressure relief hole.

[0039] In this solution, the valve core is highly reliable and is not prone to failure under frequent vibration. The pressure relief of the fireproof data storage liner using the above-mentioned valve core is more stable, thereby enhancing the reliability of the fireproof data storage device. Furthermore, by directly setting the valve core at the pressure relief hole, there is no need to set up an additional valve body, which helps to reduce costs.

[0040] A method for manufacturing a pressure relief valve, comprising:

[0041] The low-melting-point sealing block is combined with the receiving cavity of the locking component by heating and melting;

[0042] Install the locking element into the receiving groove of the valve body.

[0043] In this solution, the low-melting-point sealing block is combined with the receiving cavity by heating and melting. This makes it easier to fill the entire receiving cavity with the low-melting-point sealing block and also helps to improve the sealing performance between the low-melting-point sealing block and the receiving cavity.

[0044] Preferably, the step of installing the locking member into the receiving groove of the valve body further includes:

[0045] The sealing element is placed between the bottom of the receiving groove and the locking element.

[0046] In this solution, the sealing performance between the locking element and the receiving groove can be further improved by adding a sealing element.

[0047] Preferably, the step of combining the low-melting-point sealing block with the receiving cavity of the locking member by heating and melting includes:

[0048] The low-melting-point sealing block is placed into the receiving cavity of the locking component, and the locking component is heated to melt the low-melting-point sealing block. Then, it is cooled until the low-melting-point sealing block solidifies.

[0049] Alternatively, a molten low-melting-point sealing block can be injected into the receiving cavity of the locking element, and then cooled until the low-melting-point sealing block solidifies.

[0050] The positive and progressive effects of this invention are as follows: The pressure relief valve has a simple and reliable structure. A low-melting-point sealing block is installed inside the receiving cavity of the locking component. This low-melting-point sealing block seals the first opening, thereby blocking the connection between the first opening and the outside. The coolant in the fireproof data storage tank cannot flow out or evaporate from the second opening. When the ambient temperature of the valve core rises to the melting point of the low-melting-point sealing block, the sealing block melts. Under certain pressure, it can no longer seal the first opening, and the internal coolant can be discharged as high-temperature, high-pressure steam, thus achieving precise pressure relief under constant temperature and pressure conditions. Compared with existing valve cores, this solution does not require additional elastic components, moving parts, or sealing components. It has a simple and reliable structure, is not prone to failure under frequent vibration, and has higher reliability. Furthermore, the low-melting-point sealing block is placed in the receiving cavity. After the high-temperature and high-pressure steam is ejected, it can cool the valve core. Under the action of steam, the temperature of the low-melting-point sealing block can be reduced to below 110°C. The remaining low-melting-point sealing block in the receiving cavity can solidify and reseal the first opening, waiting for the next pressure relief. Attached Figure Description

[0051] Figure 1 This is a schematic diagram of the valve core structure in Embodiment 1 of the present invention;

[0052] Figure 2 This is a schematic diagram of the locking component in Embodiment 2 of the present invention;

[0053] Figure 3 This is a schematic diagram of the locking component in Embodiment 3 of the present invention;

[0054] Figure 4 This is a schematic diagram of the pressure relief valve in Embodiment 4 of the present invention;

[0055] Figure 5 This is an exploded view of the pressure relief valve in Embodiment 4 of the present invention;

[0056] Figure 6 This is a top view of the pressure relief valve in Embodiment 4 of the present invention;

[0057] Figure 7 This is a schematic diagram of the fireproof data storage inner liner structure in Embodiment 5 of the present invention;

[0058] Figure 8 This is a flowchart of the production method of the pressure relief valve in Embodiment 7 of the present invention.

[0059] Valve body 100

[0060] Reception tank 110

[0061] Second opening 120

[0062] Locking part 200

[0063] Reception cavity 210

[0064] Horizontal segment 211

[0065] Conical segment 212

[0066] First opening 220

[0067] Fastening groove 230

[0068] Area 1, 240

[0069] Second Zone 250

[0070] Third District 260

[0071] Expansion Department 270

[0072] Low melting point sealing block 300

[0073] Seal 400

[0074] Inner liner body 500

[0075] Pressure relief direction A Detailed Implementation

[0076] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments.

[0077] Example 1

[0078] like Figure 1 As shown, this embodiment provides a valve core, including: a locking member 200 and a low melting point sealing block 300. The locking member 200 has a receiving cavity 210 inside, and the receiving cavity 210 is provided with a first opening 220. The low melting point sealing block 300 is disposed in the receiving cavity 210 and closes the first opening 220.

[0079] The valve core has a simple and reliable structure. A low-melting-point sealing block 300 is installed in the receiving cavity 210 of the locking element 200. The low-melting-point sealing block 300 seals the first opening 220, thereby blocking the communication between the first opening 220 and the outside. The coolant in the fireproof data storage tank cannot flow out or evaporate from the second opening 120. When the ambient temperature of the valve core rises to the melting point of the low-melting-point sealing block 300, the low-melting-point sealing block 300 melts. Under a certain pressure, it can no longer seal the first opening 220, and the internal coolant can be discharged in a high-temperature and high-pressure vapor state, thereby achieving the purpose of precise pressure relief under constant temperature and pressure conditions. Compared with existing valve cores, this solution does not require additional elastic components, moving parts, or sealing components. The structure is simple and reliable, and it is not prone to failure under frequent vibration, resulting in higher reliability. Furthermore, the low-melting-point sealing block 300 is located in the receiving cavity 210. After the high-temperature and high-pressure steam is ejected, it can cool the valve core. Under the action of steam, the temperature of the low-melting-point sealing block 300 can be reduced to below 110°C. The remaining low-melting-point sealing block 300 in the receiving cavity 210 can solidify and reseal the first opening 220, waiting for the next pressure relief.

[0080] The low-melting-point sealing block can be a fusible metal, other organic materials, or polymer materials. The melting point of the low-melting-point sealing block is higher than the boiling point of the internal coolant but lower than the safe operating temperature.

[0081] In this embodiment, the diameter of the first opening 220 is 0.5 mm, which is smaller than the diameter of the second opening 120. In other embodiments, the diameter of the first opening 220 can be flexibly set as needed.

[0082] In this embodiment, as Figure 1As shown, the receiving cavity 210 includes a horizontal section 211 and a conical section 212. The conical section 212 is located between the first opening 220 and the horizontal section, and the conical section 212 gradually converges towards the first opening 220. The horizontal section 211 and the conical section 212 form an obtuse angle. The horizontal section 211 and the conical section 212 can form a large receiving space. The gradual convergence of the conical section 212 towards the first opening 220 facilitates the accumulation of liquid after the low-melting-point sealing block 300 melts at the first opening 220, thereby sealing the first opening 220. During depressurization, after the gas is ejected, the remaining low-melting-point sealing block 300 can more easily reseal the first opening 220 through the accumulation effect of the conical section 212.

[0083] In this embodiment, the low-melting-point sealing block 300 matches the shape of the receiving cavity 210. The low-melting-point sealing block 300 fills the entire receiving cavity 210, making the connection between the low-melting-point sealing block 300 and the receiving cavity 210 more reliable and less prone to falling off, thus enhancing the overall reliability of the pressure relief valve. Of course, the low-melting-point sealing block 300 can also partially fill the receiving cavity 210, as long as it can close the first opening.

[0084] In this embodiment, the locking element is made of metal and has a plating treatment on its surface. The use of metal material ensures good adhesion to the low-melting-point sealing block 300, which helps enhance the long-term effectiveness of the overall pressure relief valve.

[0085] Specifically, the locking component is made of stainless steel and its surface is silver-plated. Stainless steel has lower thermal conductivity than the low-melting-point sealing block 300, allowing external temperature to be conducted to the interior more quickly through the low-melting-point sealing block 300. Silver plating on the locking component helps form a strong, integrated alloy layer at the interface between the low-melting-point sealing block 300 and the locking component. This ensures a long-term, effective seal at the interface regardless of vibration or significant temperature changes causing thermal expansion and contraction.

[0086] Example 2

[0087] This embodiment is basically the same as the scheme in Embodiment 1, except that:

[0088] In this embodiment, as Figure 2As shown, the receiving cavity 210 along the pressure relief direction A includes a first region 240, a second region 250, and a third region 260. The diameter of the second region 250 is smaller than that of the first region 240 and the third region 260. The receiving cavity forms a structure that is large at both ends and narrow in the middle. This structure can increase the contact area between the low-melting-point sealing block and the locking element, thereby strengthening the sealing and firmness of the connection between the low-melting-point sealing block and the receiving cavity. Furthermore, this structure can further strengthen the firmness and sealing of the low-melting-point sealing block and the locking element when the low-melting-point sealing block solidifies in the receiving cavity. In addition, since the low-melting-point sealing block is prone to oxidation and cracking during long-term use, leading to sealing failure, the low-melting-point sealing block located in the second region 250 will not come into contact with air, thus preventing oxidation failure. Moreover, under the combined effect of structure and tension, the low-melting-point sealing block in the second region 250 will hardly form cracks. The structure of the receiving cavity can enhance the oxidation and cracking resistance of the low-melting-point sealing block, effectively ensuring the sealing performance of the pressure relief valve and improving the reliability of pressure relief. Specifically, the depressurization direction is the direction of gas ejection.

[0089] Furthermore, in this embodiment, the diameters of the first region 240 and the third region 260 gradually increase from the direction closer to the second region 250 to the direction farther away from the second region 250. The first region 240 and the third region 260 form a conical structure. As the temperature changes, a certain pressure difference will be generated inside and outside the pressure relief valve. When pressure is applied to the end face of the first region 240 or the third region 260, most of the force will act on the conical surface inside the receiving cavity, and only a very small portion of the pressure will act on the low-melting-point sealing block in the second region 250. This prevents the low-melting-point sealing block in the second region 250 from easily failing, greatly enhancing the overall sealing life and reliability of the pressure relief valve. Furthermore, in this structure, when the low-melting-point sealing block is transferring heat, the high external temperature is first transferred to the second region 250 through the third region 260. Due to the small diameter of the second region 250, there is some resistance in the process of heat transfer from the second region 250 to the first region 240. The heat is introduced into the second region 250 in a limited and slow manner. When it is conducted to the low-melting-point sealing block in the first region 240, the volume of the low-melting-point sealing block increases and the contact area with the internal liquid is larger, which allows the heat to be quickly absorbed by the liquid. At this time, the temperature difference between the low-melting-point sealing block in the first region 240 and the internal liquid is small, so the temperature of the first region 240 will be lower than that of the third region 260 and the second region 250. In most cases, the low-melting-point sealing block in the first region 240 will melt last. Only when the internal temperature reaches the melting point of the low-melting-point sealing block in the first region 240 will the low-melting-point sealing block be melted, thus releasing pressure. When the internal temperature does not reach the melting point of the low-melting-point sealing block in the first region 240, the low-melting-point sealing block in the part of the first region 240 near the second region 250 will soften due to its higher temperature. Under the action of the conical structure, the low-melting-point sealing block can further enhance the sealing performance when it is squeezed, which can ensure that the pressure relief valve will not fail prematurely.

[0090] In other embodiments, the first region 240 and the third region 260 may also be curved surfaces.

[0091] In other embodiments, the diameter of either the first region 240 or the third region 260 may be gradually increased from the direction closer to the second region 250 to the direction further away from the second region 250.

[0092] Example 3

[0093] In this embodiment, as Figure 3As shown, the receiving cavity further includes an expansion section 270, which is disposed at the third region 260. The expansion section 270 is used to receive the low-melting-point sealing block 300. By adding the expansion section 270, the receiving space of the low-melting-point sealing block can be further increased, so that after the first depressurization, the remaining low-melting-point sealing block can more easily seal the first opening a second time.

[0094] Example 4

[0095] like Figures 4-6 As shown, a pressure relief valve includes a valve body 100, which has a receiving groove. A second opening 120 is provided at the bottom of the receiving groove. The pressure relief valve also includes a valve core as shown in Embodiment 1. A locking member 200 is disposed within the receiving groove. The receiving cavity 200 communicates with the second opening 120 through a first opening 220. The pressure relief valve using the aforementioned valve core has a simple and reliable structure. It is less prone to failure under frequent vibration, resulting in higher reliability and significantly extending the service life of the pressure relief valve. Furthermore, the connection between the valve body and the inner liner is more convenient, which helps to enhance the sealing performance at the pressure relief port.

[0096] In other embodiments, the valve core in the pressure relief valve may also be the valve core in Embodiment 2.

[0097] The locking element 200 is threadedly connected to the receiving groove 110. The locking element 200 is provided with external threads, and the receiving groove 110 is provided with internal threads that match the locking element 200. The threaded connection structure is simple, and the connection between the locking element 200 and the receiving groove 110 is reliable and easy to disassemble.

[0098] In addition, anti-loosening adhesive can be added between the locking member 200 and the receiving groove 110 to further strengthen the sealing ring between the locking member 200 and the receiving groove 110 and to prevent the locking member 200 from falling off.

[0099] In other embodiments, the locking member 200 and the receiving groove 110 may also be connected by a slot or a fastener.

[0100] In this embodiment, a fastening groove 230 is provided at the end of the locking member 200 away from the receiving groove 110. By providing the fastening groove 230, it is convenient to use a fastening tool such as a screwdriver to fasten the locking member 200.

[0101] In this embodiment, the pressure relief valve further includes a seal 400, which is disposed around the first opening 220 between the bottom of the receiving groove 110 and the locking member 200. By disposing the seal 400 between the receiving groove 110 and the locking member 200, the seal 400 is compressed when the locking member 200 is installed, thereby enhancing the sealing effect. Furthermore, petroleum jelly can be applied to the seal 400 to further enhance the sealing performance. The seal 400 can be made of an elastic sealing ring, which can deform under pressure, further improving the sealing performance.

[0102] Example 5

[0103] like Figure 7 As shown, this embodiment provides a fireproof data storage liner, which includes an inner liner body 500 and a pressure relief valve as in Embodiment 4. The inner liner body 500 is provided with a pressure relief hole, and the pressure relief valve is disposed at the pressure relief hole. The pressure relief valve has high reliability and is not prone to failure under frequent vibration. The pressure relief of the fireproof data storage liner using the above-mentioned pressure relief valve is more stable, thereby enhancing the reliability of the fireproof data storage device.

[0104] In this embodiment, the fireproof data storage liner further includes a sealing and protective section. This sealing and protective section is located at the end of the pressure relief valve furthest from the liner body 500, and seals the pressure relief valve. The sealing and protective section further enhances the sealing performance of the pressure relief valve and, during pressure relief, provides some obstruction to high-pressure gas, preventing damage to external components. Furthermore, it can prevent the intrusion of foreign objects. The sealing and protective section can be made of polyimide tape.

[0105] In this embodiment, the inner liner body 500 is provided with a water-soluble storage section (not shown in the figure), which dissolves when exposed to water, and is provided with water-absorbing material.

[0106] The ratio of water to absorbent material in the inner tank requires precision. By pre-setting a certain amount of absorbent material in the water-soluble storage section, and since the volume of the inner tank is known, the required amount of absorbent material can be quantitatively calculated. By placing the water-soluble storage section in advance within the inner tank, simply adding water achieves a precise water-to-absorbent material ratio. This not only improves production efficiency but also enhances the accuracy of the water-absorbent material-to-water ratio. The water-soluble storage section dissolves upon contact with water, dispersing the absorbent material and ensuring that the absorbent material does not prematurely degrade.

[0107] Specifically, the water-soluble storage section can be a water-soluble capsule, and the water-absorbing material can be a water-absorbing resin.

[0108] Example 6

[0109] In this embodiment, the fireproof data storage liner includes an inner liner body and a valve core as shown in Embodiment 1 or Embodiment 2. The inner liner body is provided with a pressure relief hole, and the valve core is disposed at the pressure relief hole. The valve core and the pressure relief hole can be connected by threads or welding. The valve core has high reliability and is not prone to failure under frequent vibration. The pressure relief of the fireproof data storage liner using the above-mentioned valve core is more stable, thereby enhancing the reliability of the fireproof data storage device. Furthermore, by directly placing the valve core at the pressure relief hole, there is no need for an additional valve body, which helps to reduce costs.

[0110] Example 7

[0111] like Figure 8 As shown, this embodiment provides a method for manufacturing a pressure relief valve, used to produce the pressure relief valve as described above, comprising:

[0112] S10. The low-melting-point sealing block is combined with the receiving cavity of the locking component by heating and melting.

[0113] S20. Install the locking element into the receiving groove of the valve body.

[0114] By using heating and melting to combine the low-melting-point sealing block with the receiving cavity, it is easier to fill the entire receiving cavity with the low-melting-point sealing block, and it also helps to improve the sealing performance between the low-melting-point sealing block and the receiving cavity.

[0115] In other embodiments, step S20 may be performed first, followed by step S10.

[0116] In this embodiment, the method further includes the following steps before implementing step S20:

[0117] S15. Place the seal between the bottom of the receiving groove and the locking element.

[0118] By adding a new seal, the sealing performance between the locking element and the receiving groove can be further improved.

[0119] In this embodiment, step S10 specifically includes: placing the low-melting-point sealing block into the receiving cavity of the locking member, heating the locking member to melt the low-melting-point sealing block, and then cooling it until the low-melting-point sealing block solidifies.

[0120] In other embodiments, step S10 may also be: injecting a molten low-melting-point sealing block into the receiving cavity of the locking member, and then cooling it until the low-melting-point sealing block solidifies.

[0121] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A fireproof data storage liner, wherein the fireproof data storage liner contains a coolant, characterized in that, The fireproof data storage liner includes an inner liner body and a pressure relief valve. The inner liner body is provided with a pressure relief hole, and the pressure relief valve is located at the pressure relief hole. The pressure relief valve includes a valve core, and the valve core includes: A locking member, wherein a receiving cavity is formed inside the locking member, and the receiving cavity is provided with a first opening; A low-melting-point sealing block is disposed within the receiving cavity and seals the first opening; The receiving cavity includes a first region, a second region, and a third region along the pressure relief direction. The diameter of the second region is smaller than that of the first region and the third region. The low-melting-point sealing block is disposed in the first region, the second region, and the third region. The receiving cavity further includes an expansion section, which is disposed in the third region and is used to receive the low melting point sealing block; When the low-melting-point sealing block transfers heat, the high external temperature is first transferred to the second region through the third region. Due to the small diameter of the second region, there is some resistance in the process of heat transfer from the second region to the first region. The heat is introduced into the second region in a limited and slow manner. When the heat is conducted to the low-melting-point sealing block in the first region, the volume of the low-melting-point sealing block increases and the contact area with the internal liquid is larger, so the heat is quickly absorbed by the liquid. At this time, the temperature difference between the low-melting-point sealing block in the first region and the internal liquid is small, so the temperature of the first region will be lower than that of the third and second regions. When the internal temperature reaches the melting point of the low-melting-point sealing block in the first region, the low-melting-point sealing block will melt and release pressure.

2. The fireproof data storage liner as described in claim 1, characterized in that, The diameter of the first region and / or the third region gradually increases from the direction closer to the second region to the direction farther away from the second region.

3. The fireproof data storage liner as described in claim 1, characterized in that, The low-melting-point sealing block is matched to the shape of the receiving cavity.

4. The fireproof data storage liner as described in claim 1, characterized in that, The locking component is made of metal and has a plating treatment on its surface.

5. The fireproof data storage inner liner as described in claim 4, characterized in that, The locking component is made of stainless steel and its surface is silver-plated.

6. The fireproof data storage liner as described in claim 1, characterized in that, The pressure relief valve includes a valve body, which is provided with a receiving groove. The bottom of the receiving groove is provided with a second opening. The locking member is disposed in the receiving groove, and the receiving cavity communicates with the second opening through the first opening.

7. The fireproof data storage liner as described in claim 6, characterized in that, The locking element is threadedly connected to the receiving groove.

8. The fireproof data storage liner as described in claim 7, characterized in that, The locking member has a fastening groove at the end away from the receiving groove.

9. The fireproof data storage inner liner as described in any one of claims 6-8, characterized in that, The pressure relief valve also includes a seal, which is disposed around the first opening between the bottom of the receiving groove and the locking member.

10. The fireproof data storage liner as described in claim 1, characterized in that, The fireproof data storage liner also includes a sealing and protective part, which is located at the end of the pressure relief valve away from the liner body and closes the pressure relief valve.

11. The fireproof data storage liner as described in claim 10, characterized in that, The inner liner body has a water-soluble storage section inside, which dissolves when exposed to water, and is equipped with water-absorbing material.

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