Long-service-life stainless steel vapor chamber

Abstract

The utility model provides a long-service-life stainless steel uniform-temperature plate which comprises a first stainless steel shell, a second stainless steel shell and a third stainless steel shell. The second stainless steel shell is arranged corresponding to the first stainless steel shell, the second stainless steel shell and the first stainless steel shell are subjected to laser welding, and the second stainless steel shell is subjected to high-temperature passivation treatment; the capillary structure is arranged on the first stainless steel shell, the capillary structure and the first stainless steel shell are subjected to high-temperature passivation treatment together, and the capillary structure is fixedly connected with the first stainless steel shell; and the hydrogen removal material is of a non-coated or non-coating structure, is arranged at the condensation end of the stainless steel shell II, and is titanium-plated palladium. A hydrogen removal material with a non-coated or non-coating structure is placed at the condensation end of the stainless steel temperature-uniforming plate, preferably a filamentous or blocky hydrogen removal material, hydrogen generated by contact of iron atoms and water molecules is absorbed, the vacuum degree in the stainless steel temperature-uniforming plate is improved, and therefore the service life of the stainless steel temperature-uniforming plate is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature balancing plates, in particular to a stainless steel temperature balancing plate with a long service life. Background Art

[0002] Mobile terminals such as smart phones or laptops generally use heat spreaders as the main heat dissipation device to reduce the operating temperature of the chip. The most commonly used copper alloy heat spreaders at present have high material cost and low strength, and it is increasingly difficult to meet the development requirements of smart mobile terminals. Therefore, stainless steel heat spreaders with low material cost and high strength came into being. However, stainless steel heat spreaders generally use high-temperature oxidation as a passivation process. The iron oxide structure in the passivation layer generated by this process is not dense, and there is still a phenomenon of iron atoms and water molecules contacting to generate hydrogen, which destroys the vacuum inside the stainless steel heat spreader and reduces the life of the stainless steel heat spreader. Coating palladium and other coatings on the inner wall of the shell can achieve the purpose of dehydrogenation. However, the amount of precious metals such as palladium is large, and the coating process cost is high, which makes the stainless steel heat spreader lose its cost advantage. Utility Model Content

[0003] The utility model provides a stainless steel temperature-averaging plate with a long service life, which is used to solve the defects in the background technology.

[0004] The utility model provides a long-life stainless steel temperature-averaging plate, comprising:

[0005] A stainless steel shell 1, wherein the stainless steel shell 1 is subjected to high temperature passivation treatment;

[0006] The second stainless steel shell is arranged corresponding to the first stainless steel shell and is laser welded to the first stainless steel shell. The second stainless steel shell is subjected to high temperature passivation treatment.

[0007] A capillary structure, disposed on the stainless steel shell one, undergoing high temperature passivation treatment together with the stainless steel shell one, and fixedly connected to the stainless steel shell one;

[0008] The dehydrogenation material is a non-coated or non-coated structure, which is arranged on the condensing end of the second stainless steel shell, and at least one is arranged. The dehydrogenation material is titanium-plated with palladium, and the titanium-plated with palladium includes a titanium substrate and a palladium layer. The palladium layer is electroplated on the outer surface of the titanium substrate and completely covers the titanium substrate.

[0009] According to a long-life stainless steel temperature equalizing plate provided by the utility model, it is characterized in that the dehydrogenation material is in a filamentous, block-shaped, or ring-shaped structure.

[0010] According to the long-life stainless steel temperature equalizing plate provided by the utility model, the dehydrogenation material is bonded to the inside of the second stainless steel shell by means of a fixing adhesive.

[0011] According to the long-life stainless steel temperature equalizing plate provided by the utility model, the dehydrogenation material is bonded to the inside of the second stainless steel shell by UV glue.

[0012] According to the high-life stainless steel temperature-averaging plate provided by the utility model, the thickness of the titanium substrate plated with palladium is 0.05-0.50 mm, and the thickness of the palladium layer is 1-10 μm.

[0013] According to a long-life stainless steel temperature equalizing plate provided by the utility model, the titanium-palladium plating is performed by high-temperature vacuum plating to plate the palladium layer onto the titanium substrate, and the high-temperature vacuum plating temperature range is 100-620°C.

[0014] According to the high-life stainless steel temperature-averaging plate provided by the utility model, the palladium-plated titanium is plated onto the titanium substrate by chemical plating.

[0015] According to the long-life stainless steel temperature-averaging plate provided by the utility model, the components of the chemical plating solution are palladium dichloride and ammonium chloride.

[0016] According to the high-life stainless steel temperature-averaging plate provided by the utility model, the titanium substrate in the titanium-plated palladium can also be lanthanum, nickel, vanadium, magnesium or other hydrogen-removing materials.

[0017] According to the long-life stainless steel temperature equalizing plate provided by the utility model, water is injected between the first stainless steel shell and the second stainless steel shell.

[0018] According to a long-life stainless steel temperature averaging plate provided by the utility model, an electronic device comprises the long-life stainless steel temperature averaging plate as described above, and the long-life stainless steel temperature averaging plate is installed in the electronic device.

[0019] The utility model provides a long-life stainless steel temperature-averaging plate, which places a non-coated or non-coated dehydrogenation material at the condensing end of the stainless steel temperature-averaging plate, preferably a filamentous or block-shaped dehydrogenation material, to absorb hydrogen generated by the contact between iron atoms and water molecules, thereby increasing the internal vacuum of the stainless steel temperature-averaging plate and greatly increasing the life of the stainless steel temperature-averaging plate. The dehydrogenation material substrate is made of relatively low-priced titanium, and a layer of palladium is plated on the surface to protect the titanium substrate, thereby achieving the purpose of dehydrogenation. The price of titanium is much lower than palladium, and the surface area of ​​filamentous or block-shaped titanium-plated palladium materials is small. Compared with pure palladium or shell-coated palladium, titanium-plated palladium greatly saves the amount of palladium, and the cost is correspondingly greatly reduced, so that the stainless steel temperature-averaging plate still has obvious cost advantages over the copper temperature-averaging plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a schematic diagram of the overall decomposition structure of a high-life stainless steel temperature equalizing plate provided by an embodiment of the utility model;

[0022] Figure 2 It is a schematic diagram of the overall structure of a high-life stainless steel temperature equalizing plate provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the embodiment of the present application, a long-life stainless steel temperature balancing plate includes:

[0027] A stainless steel shell 1, wherein the stainless steel shell 1 is subjected to high temperature passivation treatment;

[0028] The stainless steel shell 2 2 is arranged corresponding to the stainless steel shell 1 and is laser welded to the stainless steel shell 1. The stainless steel shell 2 2 is subjected to high temperature passivation treatment;

[0029] The capillary structure 3 is arranged on the stainless steel shell 1, undergoes high temperature passivation treatment together with the stainless steel shell 1, and is fixedly connected to the stainless steel shell 1;

[0030] The dehydrogenation material 5 is a non-coated or non-coated structure, which is arranged on the condensation end of the stainless steel shell 2, and at least one is arranged. The dehydrogenation material 5 is titanium-plated with palladium, and the titanium-plated with palladium includes a titanium substrate and a palladium layer. The palladium layer is electroplated on the outer surface of the titanium substrate and completely covers the titanium substrate.

[0031] The dehydrogenation material 5 is in a filament, block, or ring structure.

[0032] It should be noted that the hydrogen removal material may also be in other shapes, such as round, square or irregular shapes.

[0033] Specifically, when the high-life stainless steel temperature balancing plate of the utility model is applied to mobile terminals such as smart phones, the number of dehydrogenation materials can be 1 or more; when the high-life stainless steel temperature balancing plate of the utility model is applied to mobile terminals such as laptops, the number of dehydrogenation materials is at least 2. The number of dehydrogenation materials is set according to actual use requirements, and the more the number, the better the effect.

[0034] It should be noted that a support column 4 is provided between the stainless steel shell 1 and the stainless steel shell 2 2 to ensure the strength of the temperature equalizing plate.

[0035] The dehydrogenation material 5 is bonded to the inside of the stainless steel shell 2 by means of a fixing glue 6 .

[0036] The dehydrogenation material 5 is bonded to the inside of the stainless steel shell 2 by UV glue.

[0037] The thickness of the titanium substrate of the titanium-palladium-plated titanium is 0.05-0.50 mm, and the thickness of the palladium layer is 1-10 μm.

[0038] The palladium plating on titanium is performed by plating a palladium layer on a titanium substrate through high-temperature vacuum plating, wherein the temperature range of the high-temperature vacuum plating is 100 to 620°C.

[0039] Titanium palladium plating is a process of electroless plating of palladium onto a titanium substrate. The plating solution for electroless plating is composed of palladium dichloride and ammonium chloride.

[0040] The titanium substrate in titanium plating with palladium can also be lanthanum, nickel, vanadium, magnesium or other hydrogen-removing materials.

[0041] Water is injected between the stainless steel shell 1 and the stainless steel shell 2 2 .

[0042] An electronic device comprises the high-life stainless steel temperature averaging plate in the above embodiment, wherein the high-life stainless steel temperature averaging plate is installed in the electronic device.

[0043] The process of manufacturing a stainless steel temperature-averaging plate is as follows: the stainless steel shell 1 and the capillary structure 3 are fixedly connected and subjected to high-temperature passivation treatment; the stainless steel shell 2 is subjected to high-temperature passivation treatment, the dehydrogenation material 5 is placed in the stainless steel shell 2 and fixed with a fixing glue 6; the stainless steel shell 1 and the stainless steel shell 2 are laser welded; water is injected between the stainless steel shell 1 and the stainless steel shell 2, vacuuming, heating and degassing, and laser sealing to obtain a stainless steel temperature-averaging plate.

[0044] The technical principle of this embodiment: Under 1 standard atmospheric pressure, the boiling point of water is 100°C. When the vacuum inside the temperature plate is sufficient, the boiling point of water inside the temperature plate can be reduced to below 45°C. The iron atoms of the stainless steel temperature plate react with water molecules to generate hydrogen. The reaction equation is Fe+2H2O=Fe(OH) 2 +H2, the generated hydrogen will reduce the vacuum degree, and the boiling point of water in the temperature equalizer will increase, causing the temperature of the temperature equalizer to increase, the heat transfer efficiency to decrease, or even fail. Hydrogen removal materials such as titanium plated with palladium, the palladium coating can protect the titanium substrate from reacting with water, and at the same time, the palladium coating can be used to quickly dissociate the hydrogen molecules on the palladium surface into hydrogen atoms. The hydrogen atoms are absorbed into the palladium coating and further diffused into the titanium substrate. At room temperature, the amount of hydrogen adsorbed by titanium is more than twice that of palladium, which is beneficial to increase the amount of hydrogen adsorption. The dehydrogenation temperature of titanium exceeds 300°C. Therefore, within the common operating temperature range of mobile terminals (less than 80°C), hydrogen atoms can be stably stored in the titanium substrate.

[0045] The technical effect achieved by a long-life stainless steel temperature-averaging plate provided in this embodiment is as follows: by placing a non-coated or non-coated dehydrogenation material at the condensing end of the stainless steel temperature-averaging plate, preferably a filamentous or block-shaped dehydrogenation material, the hydrogen generated by the contact between iron atoms and water molecules is absorbed, and the internal vacuum degree of the stainless steel temperature-averaging plate is increased, thereby greatly improving the life of the stainless steel temperature-averaging plate. The base material of the dehydrogenation material is relatively low-priced titanium, and a layer of palladium is plated on the surface to protect the titanium base material, thereby achieving the purpose of dehydrogenation. The price of titanium is much lower than palladium, and the surface area of ​​filamentous or block-shaped titanium-plated palladium materials is small. Compared with pure palladium or shell-coated palladium, titanium-plated palladium greatly saves the amount of palladium, and the cost is correspondingly greatly reduced, so that the stainless steel temperature-averaging plate still has a significant cost advantage over the copper temperature-averaging plate.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A long-life stainless steel temperature-averaging plate, characterized in that: include: A stainless steel shell (1), wherein the stainless steel shell (1) is subjected to a high temperature passivation treatment; The second stainless steel shell (2) is arranged corresponding to the first stainless steel shell (1) and is laser welded to the first stainless steel shell (1). The second stainless steel shell (2) is subjected to high temperature passivation treatment; The capillary structure (3) is arranged on the stainless steel shell (1), undergoes high temperature passivation treatment together with the stainless steel shell (1), and is fixedly connected to the stainless steel shell (1); A dehydrogenation material (5) is a non-coated or non-coated structure, arranged on the condensation end of the second stainless steel shell (2), and at least one is arranged, the dehydrogenation material (5) is titanium-plated palladium, the titanium-plated palladium includes a titanium substrate and a palladium layer, the palladium layer is electroplated on the outer surface of the titanium substrate and completely covers the titanium substrate.

2. The long-life stainless steel temperature equalizing plate according to claim 1, characterized in that: The dehydrogenation material (5) is in a filamentous, block-shaped, or ring-shaped structure.

3. The long-life stainless steel temperature balancing plate according to claim 2, characterized in that: The dehydrogenation material (5) is bonded to the inside of the second stainless steel shell (2) by means of a fixing glue (6).

4. The long-life stainless steel temperature balancing plate according to claim 1, characterized in that: The titanium substrate of the palladium-plated titanium has a thickness of 0.05-0.50 mm, and the palladium layer has a thickness of 1-10 μm.

5. The long-life stainless steel temperature balancing plate according to claim 1, characterized in that: The titanium-palladium plating is performed by plating a palladium layer onto a titanium substrate through high-temperature vacuum plating, and the temperature range of the high-temperature vacuum plating is 100-620°C.

6. The long-life stainless steel temperature balancing plate according to claim 1, characterized in that: The palladium-plated titanium method is to plate a palladium layer onto a titanium substrate by chemical plating.

7. The long-life stainless steel temperature balancing plate according to claim 1, characterized in that: The titanium substrate in the titanium-plated palladium can also be lanthanum, nickel, vanadium, magnesium or a hydrogen removal material.

8. The long-life stainless steel temperature balancing plate according to claim 1, characterized in that: Water is injected between the first stainless steel shell (1) and the second stainless steel shell (2).

9. A long-life stainless steel temperature balancing plate according to any one of claims 1 to 8, characterized in that: The long-life stainless steel temperature equalizing plate is installed in the electronic equipment.

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