The strip-woven capillary structure of heat exchangers and its weaving method

Abstract

A strip-woven capillary structure for a heat exchanger and its weaving method are disclosed. The strip-woven capillary structure of the heat exchanger includes an inner fiber layer, a mesh capillary layer, and an outer fiber layer. The inner fiber layer is strip-shaped and hollow inside. The mesh capillary layer extends along the strip shape of the inner fiber layer and is fitted over the inner fiber layer. The outer fiber layer extends along the mesh capillary layer and is disposed over the mesh capillary layer. The mesh capillary layer facilitates the continued weaving of the outer fiber layer and also allows the inner fiber layer to have a higher storage and transmission capacity of liquid working fluid, thereby improving its heat transfer efficiency.

Description

Technical Field

[0001] This invention relates to a capillary structure, particularly a strip-woven capillary structure for a heat exchanger and its weaving method. Background Technology

[0002] Existing braided capillary structures typically use copper wire or fiber thread, which is braided along the length of a cylindrical tube before the tube is removed, leaving the braided capillary structure in strip form. This braided mesh can be applied to heat exchangers such as heat pipes or vapor chambers, allowing the working fluid within the heat exchanger to be stored within it. Capillary force then facilitates the transfer or recirculation of the working fluid, for example, from the condenser zone to the evaporator zone. To increase the storage and transfer capacity of the working fluid, multiple layers of braiding can be used to increase its thickness.

[0003] However, existing woven strip capillary structures are prone to multi-layer weaving due to loose fiber threads, making the weaving process quite difficult.

[0004] In view of this, the inventor, in order to improve and solve the above-mentioned deficiencies, has devoted himself to research and applied theoretical knowledge, and finally proposed an invention with a reasonable design that effectively improves the above-mentioned deficiencies. Summary of the Invention

[0005] The main objective of this invention is to provide a strip-shaped braided capillary structure for a heat exchanger and its braiding method. This structure helps to place a mesh-like capillary around the fiber braiding capillary during the multi-layer braiding process, so that the inner fiber braiding can be more stable and less prone to unraveling during the braiding process. At the same time, after the braiding is completed, the storage and transmission capacity of the working fluid can be increased by the difference in porosity, thereby improving its heat transfer efficiency.

[0006] To achieve the above objectives, the present invention provides a strip-shaped woven capillary structure for a heat exchanger, comprising an inner fiber layer, a mesh capillary layer, and an outer fiber layer; the inner fiber layer is strip-shaped and hollow inside, the mesh capillary layer extends along the strip shape of the inner fiber layer and is sleeved on the outside of the inner fiber layer, and the outer fiber layer extends along the mesh capillary layer and is disposed on the outside of the mesh capillary layer.

[0007] In one embodiment, the inner fiber layer and the outer fiber layer are woven together by interlacing multiple fiber threads.

[0008] In one embodiment, the mesh capillary layer is rolled up and placed outside the inner fiber layer.

[0009] In one embodiment, the mesh capillary layer is curled and surrounds the inner fiber layer.

[0010] In one embodiment, the weaving density of the outer fiber layer is greater than the mesh density of the mesh capillary layer.

[0011] In one embodiment, the weaving density of the outer fiber layer is greater than the mesh density of the mesh capillary layer.

[0012] In one embodiment, the outer fiber layer is composed of multiple layers stacked together.

[0013] In one embodiment, the weaving density of each layer of the outer fiber layer gradually increases from the inside out.

[0014] To achieve the above objectives, the present invention provides a method for weaving a strip-shaped braided capillary structure for a heat exchanger, the steps of which include:

[0015] Prepare your heart stick;

[0016] One or more inner fiber layers are woven along the length of the core rod;

[0017] A mesh capillary layer is fitted over the inner fiber layer;

[0018] One or more outer fiber layers are continuously woven outside the mesh capillary layer; and

[0019] Remove the heart tube.

[0020] In one embodiment, the inner fiber layer and the outer fiber layer are woven together by interlacing multiple fiber threads.

[0021] In one embodiment, the mesh capillary layer is rolled up and placed outside the inner fiber layer.

[0022] In one embodiment, the mesh capillary layer is curled and surrounds the inner fiber layer.

[0023] In one embodiment, the weaving density of the outer fiber layer is greater than the mesh density of the mesh capillary layer.

[0024] In one embodiment, the weaving density of the outer fiber layer is greater than the mesh density of the mesh capillary layer.

[0025] In one embodiment, the outer fiber layer is composed of multiple layers stacked together.

[0026] In one embodiment, the weaving density of each layer of the outer fiber layer gradually increases from the inside out. Attached Figure Description

[0027] Figure 1 This is a planar schematic diagram of the wound core bar of the present invention.

[0028] Figure 2 This is a partial cross-sectional schematic diagram of the present invention.

[0029] Figure 3for Figure 1 Sectional view of section 3-3.

[0030] Figure 4 This is a flowchart of the steps of the present invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1: Inner fibrous layer;

[0033] 2: Mesh capillary layer;

[0034] 3: Outer fiber layer;

[0035] 30: First outer fiber layer;

[0036] 31: Second outer fiber layer;

[0037] 32: Third outer fiber layer;

[0038] 4: Heart-shaped;

[0039] S1: Steps;

[0040] S2: Steps;

[0041] S3: Steps;

[0042] S4: Steps;

[0043] S5: Steps. Detailed Implementation

[0044] To enable your review committee to further understand the features and technical content of the present invention, please refer to the following detailed description and accompanying drawings. However, the accompanying drawings are provided for reference and illustration only and are not intended to limit the present invention.

[0045] Please see Figure 1 This is a planar schematic diagram of the wound core bar of the present invention. The present invention provides a strip-shaped braided capillary structure for a heat exchanger and its braiding method. The strip-shaped braided capillary structure of the heat exchanger includes an inner fiber layer 1, a mesh capillary layer 2, and at least one outer fiber layer 3; wherein:

[0046] Please refer to the following: Figure 1 and Figure 4 As shown, in the present invention, during weaving, first as... Figure 4 Step S1: Prepare the core rod 4; the core rod 4 should have a certain strength to prevent deformation and should have a certain length. Next, as... Figure 4 Step S2: Weave one or more inner fiber layers 1 along the length direction of the core rod 4; so that the inner fiber layer 1 can be woven along the length extension direction of the core rod 4, and the inner fiber layer 1 is woven by interlacing multiple fiber threads.

[0047] As mentioned above, Figure 4 Step S3: A mesh capillary layer 2 is fitted over the inner fiber layer 1. The mesh capillary layer 2 can be pre-formed into a roll shape to fit over the inner fiber layer 1; alternatively, a single sheet of mesh capillary layer 2 can be rolled up and wrapped around the inner fiber layer 1. This allows the mesh capillary layer 2 to tighten the inner fiber layer 1, preventing it from becoming too loose and affecting subsequent weaving processes. Furthermore, the mesh density on the mesh capillary layer 2 can be greater than the weaving density of the inner fiber layer 1; since higher density results in smaller pores, the higher density and smaller pores of the mesh capillary layer 2 can provide better capillary force and water content of the liquid working fluid within the inner fiber layer 1.

[0048] Next, as Figure 4 Step S4: Continuously weave one or more outer fiber layers 3 outside the mesh capillary layer. The outer fiber layer 3 is woven from multiple interlaced fiber threads and can be one or more layers. The weaving density of the outer fiber layer 3 can be greater than the mesh density of the mesh capillary layer 2. In the embodiment of the present invention, the outer fiber layer 3 may sequentially include a first outer fiber layer 30, a second outer fiber layer 31, and a third outer fiber layer 32 from the inside out. The weaving density of the first outer fiber layer 30 is greater than the mesh density of the mesh capillary layer 2, and the weaving density of the first outer fiber layer 30 is less than the weaving density of the second outer fiber layer 31, while the weaving density of the second outer fiber layer 31 is also less than the weaving density of the third outer fiber layer 32. In other words, when the outer fiber layer 3 consists of multiple layers, the weaving density of each layer can gradually increase from the inside out. Of course, the weaving density of each layer can also be made uniform.

[0049] Finally, as Figure 4 Step S5: Remove the core rod 4. The inner fiber layer 1 will become hollow due to the removal of the core rod 4. Thus, the strip-shaped woven capillary structure of the heat exchanger is obtained.

[0050] Therefore, by means of the above-described structure, the strip-woven capillary structure of the heat exchanger of the present invention and its weaving method can be obtained.

[0051] Accordingly, Figure 2 and Figure 3As shown, through the above-described steps of this invention, in a multi-layered strip-woven capillary structure, multiple fiber threads are first woven onto the core rod 4 to form an inner fiber layer 1. Then, the mesh capillary layer 2 is fitted over the inner fiber layer 1. This prevents the innermost fiber layer from unraveling due to difficulty in tightening during weaving, or from expanding due to the resilience of the fiber material itself, thus losing its proper weaving size or outer diameter. By tightly binding the mesh capillary layer 2 to the inner fiber layer 1, this invention prevents the aforementioned situation from occurring, facilitating the continued weaving of the outer fiber layer 3, thereby improving the weaving operation. Furthermore, after the weaving is completed, the difference in porosity between the mesh capillary layer 2 and the inner fiber layer 1 increases the storage and transmission capacity of the working fluid, thereby enhancing its heat transfer efficiency.

[0052] However, the above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Therefore, all equivalent techniques and means made based on the description and drawings of the present invention are also included in the scope of the present invention and are hereby stated.

Claims

1. A strip-woven capillary structure for a heat exchanger, characterized in that, include: The inner fibrous layer is strip-shaped and hollow inside; A mesh capillary layer extends along the strips of the inner fiber layer and is fitted over the outer side of the inner fiber layer; as well as At least one outer fiber layer extends along the mesh capillary layer and is disposed outside the mesh capillary layer.

2. The strip-woven capillary structure of the heat exchanger as described in claim 1, characterized in that, The inner fiber layer and the outer fiber layer are woven together by interlacing multiple fiber threads.

3. The strip-woven capillary structure of the heat exchanger as described in claim 1, characterized in that, The mesh capillary layer is in the shape of a roll and is placed outside the inner fiber layer.

4. The strip-woven capillary structure of the heat exchanger as described in claim 1, characterized in that, The mesh capillary layer is curled and surrounds the inner fiber layer.

5. The strip-woven capillary structure of the heat exchanger as described in claim 1, characterized in that, The weaving density of the outer fiber layer is greater than the mesh density of the mesh capillary layer.

6. The strip-woven capillary structure of the heat exchanger as described in claim 5, characterized in that, The weaving density of the outer fiber layer is greater than the mesh density of the mesh capillary layer.

7. The strip-woven capillary structure of the heat exchanger as described in claim 1 or 6, characterized in that, The outer fiber layer is composed of multiple layers stacked together.

8. The strip-woven capillary structure of the heat exchanger as described in claim 7, characterized in that, The weaving density of each layer of the outer fiber layer gradually increases from the inside out.

9. A method for weaving a strip-shaped woven capillary structure for a heat exchanger, characterized in that, The steps include: a) Prepare the heart-shaped stick; b) Weave one or more inner fiber layers along the length of the core rod; c) A mesh capillary layer is fitted over the inner fiber layer; d) Continuously weave one or more outer fiber layers outside the mesh capillary layer; and e) Remove the core rod.

10. The method for weaving the strip-shaped braided capillary structure of a heat exchanger as described in claim 9, characterized in that, The inner fiber layer and the outer fiber layer are woven together by interlacing multiple fiber threads.

11. The method for weaving the strip-shaped braided capillary structure of a heat exchanger as described in claim 9, characterized in that, The mesh capillary layer is in the shape of a roll and is placed outside the inner fiber layer.

12. The method for weaving the strip-shaped braided capillary structure of a heat exchanger as described in claim 9, characterized in that, The mesh capillary layer is curled and surrounds the inner fiber layer.

13. The method for weaving the strip-shaped braided capillary structure of a heat exchanger as described in claim 9, characterized in that, The weaving density of the outer fiber layer is greater than the mesh density of the mesh capillary layer.

14. The method for weaving the strip-shaped braided capillary structure of a heat exchanger as described in claim 13, characterized in that, The weaving density of the outer fiber layer is greater than the mesh density of the mesh capillary layer.

15. The method for weaving the strip-woven capillary structure of a heat exchanger as described in claim 9 or 14, characterized in that, The outer fiber layer is composed of multiple layers stacked together.

16. The method for weaving the strip-shaped braided capillary structure of a heat exchanger as described in claim 15, characterized in that, The weaving density of each layer of the outer fiber layer gradually increases from the inside out.

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