Degassing clamp of copper pipe capillary structure sintering device

Abstract

The utility model discloses a copper pipe capillary structure sintering device degassing clamp which comprises a clamp bottom plate and a plurality of clamp bodies arranged on the clamp bottom plate, clamp body inner cavities are formed in the inner sides of the clamp bodies, and copper pipes are arranged in the clamp body inner cavities. A plurality of clamp body grooves are formed in the side face of the inner side of an inner cavity of the clamp body, and separation protruding blocks are arranged between the clamp body grooves.

Description

Technical Field

[0001] This utility model relates to the field of heat pipe processing, and in particular to a degassing fixture for a copper tube capillary structure sintering device. Background Technology

[0002] As electronic products become increasingly advanced, with more sophisticated manufacturing processes, smaller sizes, and higher power outputs, the heat generated by these products is increasing. This necessitates sufficiently small heat dissipation structures with high heat dissipation efficiency. Currently, to improve heat dissipation efficiency, capillary structures with good thermal conductivity are often added to heat spreaders and heat pipes to enhance thermal conductivity and thus improve heat dissipation.

[0003] The capillary structure inside existing copper tubes is mainly formed by sintering copper powder. Such a processing process generally requires about 8 hours. During this process, nitrogen is introduced as a protective gas to prevent copper oxidation. However, since some oxygen remains even after venting, and oxygen is also present in the nitrogen gas that is actually introduced, hydrogen is often mixed into the nitrogen gas. The small amount of oxidized copper is reduced through a reduction reaction. In other words, a nitrogen-hydrogen mixture is continuously introduced during this processing time.

[0004] However, even so, some capillary structures will still be oxidized, reducing the overall yield. To solve this problem, one approach is to address the issue at its source, which involves purifying the input hydrogen-oxygen mixture by consuming the internal oxygen during the input process, thereby reducing the oxygen content in the hydrogen-oxygen mixture. Another approach is to use other structures as consumables during the sintering process to replace the capillary structures in reacting with oxygen, thereby minimizing the oxidation of the capillary structures and improving the yield. Utility Model Content

[0005] The main purpose of this invention is to provide a degassing fixture for a copper tube capillary structure sintering device, which is made of copper and can replace the copper powder inside the copper tube in the oxidation reaction with oxygen.

[0006] This invention proposes a degassing fixture for a copper tube capillary structure sintering apparatus. The copper tube includes a copper tube body, a sintering rod, and copper powder disposed between the copper tube body and the sintering rod.

[0007] It includes a clamp base plate and a plurality of clamp bodies disposed on the clamp base plate. An inner cavity of the clamp body is provided on the inner side of the clamp body, and the copper tube is disposed in the inner cavity of the clamp body.

[0008] The top of the clamp body is higher than the copper tube body. Multiple clamp body grooves are provided on the inner side of the inner cavity of the clamp body, and separation protrusions are provided between the clamp body grooves.

[0009] By placing the copper tube body inside the cavity of the fixture body, oxygen entering the fixture body will first react with the fixture body, and then react with the copper tube body or the copper powder, thereby reducing the probability of the copper powder reacting with oxygen and thus improving the yield.

[0010] Preferably, the side of the separating protrusion closest to the middle of the inner cavity of the fixture body is a conical surface. By providing a separating protrusion with a conical surface, the copper tube can be prevented from sticking to the fixture body during sintering, thereby facilitating the removal of the copper tube from the fixture body after sintering.

[0011] Preferably, the clamp body and the clamp base plate are made of copper.

[0012] The beneficial effects of the degassing fixture of the copper tube capillary structure sintering device of this utility model are as follows:

[0013] 1. By setting a fixture body and setting a partition protrusion inside the fixture body, the probability of oxygen reacting with the fixture body can be increased, which will reduce the probability of copper powder reacting with oxygen inside the copper tube body, thereby improving the final yield.

[0014] 2. By setting a tapered surface on the side of the partition protrusion near the middle of the inner cavity of the fixture body, the copper tube can be prevented from sticking to the fixture body during sintering, thus making it easier to remove the copper tube from the fixture body after sintering. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the degassing fixture of the copper tube capillary structure sintering device of this utility model.

[0016] Figure 2 This is a cross-sectional view of the fixture body of the degassing fixture of the copper tube capillary structure sintering device of this utility model.

[0017] The following are the labels in the diagram: 1. Degassing fixture for copper tube capillary sintering device; 2. Copper tube; 11. Fixture base plate; 12. Fixture body; 21. Copper tube body; 22. Sintering rod; 23. Copper powder; 121. Groove of fixture body; 122. Separating protrusion; 123. Internal cavity of fixture body.

[0018] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0020] Reference Figure 1An embodiment of the degassing fixture for the copper tube capillary structure sintering apparatus of this utility model is presented:

[0021] A degassing fixture 1 for a copper tube capillary structure sintering apparatus includes a fixture base plate 11 and a plurality of fixture bodies 12 disposed on the fixture base plate 11. The fixture bodies 12 and the fixture base plate 11 are made of copper.

[0022] The inner side of the fixture body 12 is provided with a fixture body inner cavity 123. Multiple fixture body grooves 121 are provided on the inner side of the fixture body inner cavity 123. Separating protrusions 122 are provided between the fixture body grooves 121. The side of the separating protrusions 122 near the middle of the fixture body inner cavity 123 is a conical surface. By providing the separating protrusions 122 with conical surfaces, the copper tube 2 can be prevented from sticking to the fixture body 12 during sintering, so that the copper tube 2 can be easily removed from the fixture body 12 after sintering.

[0023] The copper tube 2 includes a copper tube body 21, a sintering rod 22, and copper powder 23 disposed between the copper tube body 21 and the sintering rod 22. After sintering, the copper powder 23 can be sintered on the inner side of the copper tube body 21 to form a capillary structure. The top of the clamp body 12 is higher than the copper tube body 21.

[0024] During use, as mentioned, the copper tube 2 is placed inside the cavity 123 of the fixture body. During sintering, if oxygen enters the fixture body 12, it will react with the inside of the fixture body 12 first. Furthermore, because the fixture body 12 has multiple separating protrusions 122 on its inner side, the contact surface is increased, thereby increasing the probability of oxygen reacting with the fixture body 12. This reduces the probability of copper powder inside the copper tube body 21 reacting with oxygen, thus improving the final yield.

[0025] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the contents of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A degassing fixture for a copper tube capillary structure sintering apparatus, the copper tube comprising a copper tube body, a sintering rod, and copper powder disposed between the copper tube body and the sintering rod, characterized in that, It includes a clamp base plate and a plurality of clamp bodies disposed on the clamp base plate. An inner cavity of the clamp body is provided on the inner side of the clamp body, and the copper tube is disposed in the inner cavity of the clamp body. The top of the clamp body is higher than the copper tube body. Multiple clamp body grooves are provided on the inner side of the inner cavity of the clamp body, and separation protrusions are provided between the clamp body grooves. By placing the copper tube body inside the cavity of the fixture body, oxygen entering the fixture body will first react with the fixture body, and then react with the copper tube body or the copper powder, thereby reducing the probability of the copper powder reacting with oxygen and thus improving the yield.

2. The degassing fixture of the copper tube capillary structure sintering apparatus according to claim 1, characterized in that, The dividing protrusion has a tapered surface on the side near the middle of the inner cavity of the fixture body. By setting the dividing protrusion with a tapered surface, the copper tube can be prevented from sticking to the fixture body during sintering, thus making it easier to remove the copper tube from the fixture body after sintering.

3. The degassing fixture of the copper tube capillary structure sintering apparatus according to claim 1, characterized in that, The clamp body and the clamp base plate are made of copper.

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