Protective storage water box liner pressure relief device

Abstract

The utility model discloses a protective storage water box inner liner pressure relief device, which includes a fusible metal component and an inner liner water box for accommodating a memory chip, the inner liner water box is provided with a pressure relief hole, the fusible metal component is connected to the inner liner water box and corresponds to the pressure relief hole, so that the fusible metal component is used to seal the pressure relief hole. The protective storage water box inner liner pressure relief device of the utility model has a pressure relief hole on the inner liner water box, and the pressure relief hole is sealed by the fusible metal component to ensure the sealing effect, and occupies very little space, has a simple structure, is very convenient to process and manufacture, and has very low cost; at the same time, when a fire occurs in a vehicle, after the temperature on the inner liner water box rises to the melting temperature of the fusible metal component, the fusible metal component will melt, causing high-temperature and high-pressure steam to leak out from the pressure relief hole, thereby achieving the effect of pressure relief and temperature reduction, and ensuring the safety of the memory chip in the inner liner water box.

Description

Technical Field

[0001] The utility model relates to a pressure relief device for a protective storage water box liner. Background Art

[0002] At present, some in-vehicle devices, such as car driving recorders, generally use built-in hard disks or SD cards to store vehicle data records. After an accident causes the vehicle to catch fire, crash, or fall into water, the data storage device (such as a built-in hard disk or SD card, etc.) is damaged due to poor protection, making it impossible to read the driving data, and thus unable to determine the cause of the accident. Therefore, a fireproof data storage device for saving data storage has emerged.

[0003] In the past, most fireproof data storage devices for automobile driving recorders used some complex constant temperature pressure relief valves that were fixed to the inner water box through welding or other mechanical installation methods. They took up a large volume, and the complex structure of the pressure relief valve also resulted in complex processes and high product costs. Utility Model Content

[0004] The purpose of the utility model is to overcome the above-mentioned deficiencies in the prior art, and the utility model provides a pressure relief device for the inner tank of a protective storage water box.

[0005] The utility model is realized by the following technical solutions:

[0006] A protective storage water box inner liner pressure relief device comprises a fusible metal component and an inner liner water box for accommodating a memory chip, the inner liner water box is provided with a pressure relief hole, the fusible metal component is connected to the inner liner water box and corresponds to the pressure relief hole, so that the fusible metal component is used to seal the pressure relief hole.

[0007] Furthermore, the fusible metal component is heated to be melted, so that the fusible metal component is connected to the inner tank water box and sealed to the pressure relief hole.

[0008] Furthermore, the protective storage water box inner tank pressure relief device also includes a metal component containing a fusible metal layer, and the metal component is arranged on the outer surface of the inner tank water box. The fusible metal layer of the metal component is located between the metal component and the inner tank water box. The metal component is heated to melt the fusible metal, so that the metal component and the inner tank water box are connected, and the metal component completely covers the pressure relief hole.

[0009] Furthermore, the surface of the inner water box is plated with an easy-to-weld material layer, the easy-to-weld material layer is distributed around the pressure relief hole or all parts of the inner water box, and the fusible metal component is melted by heat and connected to the easy-to-weld material layer;

[0010] And / or, the outer surface of the metal component containing the fusible metal layer is plated with an easy-to-weld material layer.

[0011] Furthermore, the number of layers of the easy-to-weld material layer is one or more layers of different materials.

[0012] Furthermore, the inner tank water box has a soldering flux, which is distributed around the pressure relief hole, and the fusible metal component can be more effectively connected to the inner tank water box through the soldering flux when it is melted by heat;

[0013] And / or, the outer surface of the metal component containing the fusible metal layer has flux.

[0014] Furthermore, the outer surface of the inner water box has an inwardly recessed groove, the pressure relief hole is located at the bottom of the groove, and the fusible metal component and the metal member are both located in the groove.

[0015] Furthermore, the metal component has a protrusion protruding outward on one side facing the inner water box, and the protrusion corresponds to the pressure relief hole.

[0016] Furthermore, the fusible metal component includes a fusible metal body and an adhesive, wherein the fusible metal body covers the pressure relief hole, and the adhesive is connected to the fusible metal body and the inner water box and is sealed to the pressure relief hole.

[0017] Furthermore, the inner diameter of the pressure relief hole is 1 to 5 mm.

[0018] Furthermore, the number of the pressure relief holes is two, and the two pressure relief holes are arranged at diagonal positions of the upper and lower surfaces of the inner water box.

[0019] The beneficial effects of the utility model are:

[0020] The utility model provides a protective storage water box inner liner pressure relief device, a pressure relief hole is opened on the inner liner water box, and the pressure relief hole is sealed by a fusible metal component to ensure the sealing effect, and the space occupied is very small, the structure is simple, the processing and manufacturing are very convenient, and the cost is very low; at the same time, when a fire occurs in the vehicle, after the temperature on the inner liner water box rises to the melting temperature of the fusible metal component, the fusible metal component will melt, allowing the high-temperature and high-pressure steam to leak out from the pressure relief hole, thereby achieving the effect of pressure relief and temperature reduction, and ensuring the safety of the memory chip in the inner liner water box. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the internal structure of the protective storage water box inner tank pressure relief device of Example 1 of the utility model.

[0022] Figure 2It is a partially enlarged schematic diagram of the inner water box, fusible metal parts and metal components of Example 1 of the utility model.

[0023] Figure 3 It is a partially enlarged schematic diagram of the inner water box, fusible metal parts and metal components of Example 2 of the utility model.

[0024] Figure 4 It is a partially enlarged schematic diagram of the inner water box and fusible metal parts of Example 3 of the utility model.

[0025] Description of reference numerals:

[0026] Inner water box 1

[0027] Pressure relief hole 11

[0028] Groove 12

[0029] Metal cover 2

[0030] Insulation material layer 3

[0031] Fusible metal parts 4

[0032] Fusible metal body 41

[0033] Adhesive 42

[0034] Metal components 5

[0035] Protrusion 51

[0036] Memory chip 10 DETAILED DESCRIPTION

[0037] The following descriptions of the embodiments refer to the accompanying drawings to illustrate specific embodiments in which the present invention can be implemented.

[0038] Example 1

[0039] like Figure 1 and Figure 2 As shown, the present embodiment discloses a protective storage water box inner liner pressure relief device, which comprises a fusible metal component 4, a metal component 5 and an inner liner water box 1 for accommodating a memory chip 10, a pressure relief hole 11 is opened on the inner liner water box 1, the fusible metal component 4 is connected to the inner liner water box 1 and corresponds to the pressure relief hole 11, the metal component 5 is arranged on the outer surface of the inner liner water box 1, the fusible metal component 4 is located between the metal component 5 and the inner liner water box 1, the fusible metal component 4 is heated to melt it, so that the metal component 5, the fusible metal component 4 and the inner liner water box 1 are connected, and the metal component 5 completely covers the pressure relief hole 11.

[0040] A memory chip 10 is placed in the inner water box 1, a metal component 5 is arranged outside the inner water box 1, and a fusible metal component 4 is correspondingly arranged on the pressure relief hole 11. When the metal component 5, the fusible metal component 4 and the inner water box 1 are sealed, the metal component 5 is sealed on the pressure relief hole 11 of the inner water box 1 and heated to 200-800°C by hot air, or directly pressed with an electric soldering iron, so that the fusible metal component 4 is heated and melted by heat, thereby combining the metal component 5, the fusible metal component 4 and the inner water box 1 together, thereby achieving the sealing of the pressure relief hole 11, and the space occupied is very small, the structure is simple, the processing and manufacturing are very convenient, and the cost is very low; at the same time, when a fire occurs in the vehicle, after the temperature on the inner water box 1 rises to the melting temperature of the fusible metal component 4, the fusible metal component 4 will melt, and the hot steam pressure in the inner water box 1 will exert an outward force on the metal component 5, thereby achieving the effect of pressure relief and cooling, and ensuring the safety of the memory chip 10 in the inner water box 1. The metal component 5 is sealed on the pressure relief hole 11 of the inner water box 1, and the metal component 5 has a certain blocking effect on the pressure relief hole 11, thereby ensuring high stability during the pressure relief and temperature reduction process.

[0041] In this embodiment, the inner diameter of the pressure relief hole 11 is 1-5 mm, so that the opening is small, easy to seal, and has high stability during the pressure relief and temperature reduction process. The fusible metal component 4 is melted and combined with the inner tank water box 1, and the fusible metal component 4 covers the pressure relief hole 11 and fills the inside of the pressure relief hole 11, which has higher reliability and firmness.

[0042] In this embodiment, there are two pressure relief holes 11, and the two pressure relief holes 11 are arranged at the diagonal positions of the upper and lower surfaces of the inner liner water box 1. The pressure relief holes 11 with a diameter of 1 to 2 mm opened at the diagonal positions of the upper and lower surfaces of the inner liner water box 1 play a role in pressure relief and temperature reduction. No matter how the pressure relief device of the protective storage water box is placed, there will be at least one pressure relief hole 11 completely in the liquid in the inner liner water box 1, and at least one pressure relief hole 11 is close to or in the waterless cavity at the top of the inner liner water box 1. When heat is introduced into the inner liner water box 1, the upper cavity part will be heated and heated faster, and the liquid surface adjacent to the cavity will also heat up earlier. The upper inner liner water box 1 is more likely to heat up to the melting point of the fusible metal component 4, so that the fusible metal component 4 melts and is broken by the high-pressure steam in the inner liner water box 1, thereby releasing pressure. The lower pressure relief hole 11 in the liquid is completely immersed in the liquid. Only when the bottom liquid is heated to the melting point of the fusible metal component 4, the lower pressure relief hole 11 will break and release the pressure. In addition, the pressure relief hole 11 located in the liquid, the fusible metal component 4 can quickly transfer heat to the liquid in the inner liner water box 1, thereby further ensuring that the lower pressure relief hole 11 will reach the melting point of the fusible metal component 4 later than the upper pressure relief hole 11. When the pressure is released, the liquid in the inner liner water box 1 will not be sprayed out first, which is beneficial to improving the fireproof performance of the inner liner water box 1. While reducing the production cost, it can also ensure that the liquid in the inner liner water box 1 will not be sprayed out first.

[0043] The outer surface of the inner water box 1 may be plated with an easy-to-weld material layer, which is distributed around the pressure relief hole 11, and the fusible metal component 4 is heated to melt and connect with the easy-to-weld material layer. The easy-to-weld material layer may be copper, silver or other easy-to-weld materials, and the outer wall around the pressure relief hole 11 is plated with copper, silver or other easy-to-weld materials. When sealing, the fusible metal component 4 will be heated and melted and will combine with the easy-to-weld material layer on the outer surface of the inner water box 1 and connect in the form of an alloy layer, so that the connection between the inner water box 1 and the fusible metal component 4 is more stable and reliable. Of course, the easy-to-weld material layer can also be distributed in all parts of the inner water box 1.

[0044] The outer surface of the metal component 5 may also be plated with a layer of easily welded material. When sealing, the fusible metal component 4 will be melted by heat and will combine with the easily welded material layer on the outer surface of the metal component 5 and connect in the form of an alloy layer, so that the connection between the metal component 5 and the fusible metal component 4 is more stable and reliable.

[0045] The easy-to-weld material layer may be one layer or multiple layers. When the easy-to-weld material layer is multiple layers, the materials of the multiple layers are different, so that the plating and connection are more stable and reliable.

[0046] The inner water box 1 may have flux, which is distributed around the pressure relief hole 11, and when the fusible metal part 4 is heated and melted, it can be more tightly connected to the material of the inner water box 1 through the flux. The flux is arranged around the pressure relief hole 11, and the connection strength between the inner water box 1 and the fusible metal part 4 is further strengthened by the flux during sealing, so that the connection is more stable and reliable.

[0047] The outer surface of the metal component 5 may also have flux. During sealing, the flux is used to further strengthen the connection strength between the metal component 5 and the fusible metal component 4, so that the connection is more stable and reliable.

[0048] In this embodiment, the outer surface of the inner water box 1 has an inwardly concave groove 12, the pressure relief hole 11 is located at the bottom of the groove 12, and the fusible metal part 4 and the metal component 5 are both located in the groove 12. The groove 12 can be formed by punching the pressure relief hole 11 and the surrounding area, the surface of the groove 12 is silver-plated and the fusible metal part 4 is placed, and then the metal component 5 is placed in the groove 12 and heated to be combined with the inner water box 1. The advantage of this process is that it will not change the outer dimensions of the inner water box 1, and at the same time, the reliability and firmness of the combination are higher.

[0049] The metal component 5 has a protrusion 51 protruding outward on one side facing the inner water box 1, and the protrusion 51 corresponds to the pressure relief hole 11. When the metal component 5 is placed, the protrusion 51 will abut against the fusible metal component 4, so that the fusible metal component 4 will extend into the pressure relief hole 11, ensuring the sealing effect. At the same time, the metal component 5 corresponds to the pressure relief hole 11 through the protrusion 51 and can extend into the pressure relief hole 11, which is easy to position during processing and has higher strength.

[0050] The protective storage water box inner tank pressure relief device of this embodiment also includes a metal outer cover 2 and a heat insulation material layer 3. The heat insulation material layer 3 and the inner tank water box 1 are both located inside the metal outer cover 2. The heat insulation material layer 3 is arranged between the metal outer cover 2 and the inner tank water box 1. A memory chip 10 is placed in the inner tank water box 1. The heat insulation material layer 3 is arranged between the metal outer cover 2 and the inner tank water box 1. The heat insulation material layer 3 provides heat insulation protection for the memory chip 10 in the inner tank water box 1, and the safety and stability are higher.

[0051] Example 2

[0052] like Figure 3As shown, the structure of the protective storage water box inner tank pressure relief device of this embodiment is the same as that of embodiment 1 and will not be repeated, and only the differences will be described. In embodiment 1, the inner tank water box 1 is punched and processed to form a groove at the pressure relief hole 11 and the surrounding area. In embodiment 2, there is no need to process the groove in the inner tank water box 1, but there is a layer of easy-to-weld material on the inner wall around the pressure relief hole 11, and the surface of the metal component 5 is also plated with a layer of easy-to-weld material. The fusible metal component 4 is set between the metal component 5 and the inner tank water box 1, and is welded into one by heating and fusion. Of course, the connection strength can also be further enhanced by adding flux, and the stability is higher.

[0053] Example 3

[0054] like Figure 4 As shown, the structure of the protective storage water box inner liner pressure relief device of this embodiment is the same as that of the embodiment 1 and will not be repeated, and only the differences will be described. In the embodiment 1, the protective storage water box inner liner pressure relief device includes a metal component, and in the embodiment 3, the protective storage water box inner liner pressure relief device does not include a metal component, so there is no need to weld the metal component to the inner liner water box 1 on the pressure relief hole 11 to form a semi-permanent sealed inner liner, which occupies very little space, has a simple structure, and is very convenient to process and manufacture.

[0055] In the first embodiment, the fusible metal component 4 is an integrally formed structure, that is, the fusible metal component 4 is made of the same material as a whole, and the fusible metal component 4 is heated so that it can be completely melted by heat; in the third embodiment, the fusible metal component 4 includes a fusible metal body 41 and an adhesive 42, the fusible metal body 41 covers the pressure relief hole 11, and the adhesive 42 is connected to the fusible metal body 41 and the inner tank water box 1 and is sealed to the pressure relief hole 11. The fusible metal component 4 is arranged in the pressure relief hole 11 through the fusible metal body 41, and the fusible metal body 41 is bonded to the pressure relief hole 11 through the adhesive 42 and the pressure relief hole 11 is sealed, so that the fusible metal component 4 does not need to be heated and melted, and it is very convenient to use. Among them, the adhesive 42 can be arranged on the outer surface of the inner tank water box 1, and can also be arranged on the inner wall surface of the inner tank water box 1.

[0056] Of course, in other embodiments, the fusible metal component 4 is an integrally formed structure, that is, the fusible metal component 4 is made of the same material as a whole. The fusible metal component 4 is heated to melt it, so that the fusible metal component 4 is directly connected to the inner tank water box 1 and directly sealed to the pressure relief hole 11. The fusible metal component 4 is directly hot-melted and solidified on the pressure relief hole 11 coated with a layer of easily welded material around it, thereby achieving a sealing effect, which is simpler and more convenient.

[0057] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A protective storage water box liner pressure relief device, characterized in that: It includes a fusible metal component and an inner water box for accommodating a memory chip, the inner water box is provided with a pressure relief hole, the fusible metal component is connected to the inner water box and corresponds to the pressure relief hole, so that the fusible metal component is used to seal the pressure relief hole; The fusible metal component is heated to be melted, so that the fusible metal component is connected to the inner tank water box and sealed to the pressure relief hole.

2. The protective storage water box inner tank pressure relief device according to claim 1, characterized in that: The protective storage water box inner tank pressure relief device also includes a metal component containing a fusible metal layer, which is arranged on the outer surface of the inner tank water box. The fusible metal layer of the metal component is located between the metal component and the inner tank water box. The metal component is heated to melt the fusible metal, so that the metal component and the inner tank water box are connected, and the metal component completely covers the pressure relief hole.

3. The protective storage water box inner tank pressure relief device according to claim 1 or 2, characterized in that: The surface of the inner water box is plated with an easy-to-weld material layer, which is distributed around the pressure relief hole or all parts of the inner water box, and the fusible metal component is melted by heat and connected to the easy-to-weld material layer.

4. The protective storage water box inner tank pressure relief device according to claim 3, characterized in that: The number of layers of the easy-to-weld material layer is one or more layers of different materials.

5. The protective storage water box inner tank pressure relief device according to claim 2, characterized in that: The outer surface of the metal component containing the fusible metal layer is plated with an easy-to-weld material layer.

6. The protective storage water box inner tank pressure relief device according to claim 5, characterized in that: The number of layers of the easy-to-weld material layer is one or more layers of different materials.

7. The protective storage water box inner liner pressure relief device according to claim 1 or 2, characterized in that: The inner water box is provided with flux, and the flux is distributed around the pressure relief hole. When the fusible metal component is melted by heat, it can be more effectively connected to the inner water box through the flux.

8. The protective storage water box inner tank pressure relief device according to claim 2, characterized in that: The outer surface of the metal component including the fusible metal layer has flux.

9. The protective storage water box inner tank pressure relief device according to claim 2, characterized in that: The outer surface of the inner water box has an inwardly sunken groove, the pressure relief hole is located at the bottom of the groove, and the fusible metal component and the metal member are both located in the groove.

10. The protective storage water box inner tank pressure relief device according to claim 2, characterized in that: A side of the metal component facing the inner water box has a protrusion protruding outward, and the protrusion corresponds to the pressure relief hole.

11. The protective storage water box inner tank pressure relief device according to claim 1, characterized in that: The fusible metal component comprises a fusible metal body and an adhesive, wherein the fusible metal body covers the pressure relief hole, and the adhesive is connected to the fusible metal body and the inner water box and is sealed to the pressure relief hole.

12. The protective storage water box inner tank pressure relief device according to claim 1, characterized in that: The inner diameter of the pressure relief hole is 1 to 5 mm.

13. The protective storage water box inner tank pressure relief device according to claim 1, characterized in that: The number of the pressure relief holes is two, and the two pressure relief holes are arranged at the diagonal positions of the upper and lower surfaces of the inner water box.

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