Auxiliary wire welding device for VC vapor chamber

Abstract

The utility model provides an auxiliary bonding wire device for a VC uniform temperature plate, and relates to the technical field of uniform temperature plates, the auxiliary bonding wire device comprises a VC uniform temperature plate main body, the VC uniform temperature plate main body is provided with a uniform temperature plate skirt edge, and the uniform temperature plate skirt edge is provided with a plurality of auxiliary bonding wires. The auxiliary bonding wires are arranged on the skirt edge of the vapor chamber, deformation of the skirt edge of the vapor chamber can be restrained through the arrangement of the auxiliary bonding wires, the defects of wave shapes, tilting and the like are remarkably reduced, then the fitting degree with external devices is improved, the liquid backflow efficiency is improved, and the heat conduction performance of the vapor chamber is optimized; the added auxiliary bonding wires enlarge the contact area, enhance the edge tensile strength, and effectively reduce the cavity liquid leakage of the VC vapor chamber main body.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, and more specifically, to an auxiliary wire bonding device for a VC heat exchanger. Background Technology

[0002] With the trend towards thinner and lighter electronic products, the thickness of VC vapor chambers has been reduced to less than 0.5mm. In traditional welding processes, the vapor chamber skirts are not treated before shaping, leading to the following problems: 1. After shaping, the skirts are prone to defects such as wavy, warped, raised, or sunken shapes, affecting flatness; 2. Uneven mounting causes a decrease in vapor chamber performance, reducing the efficiency of liquid reflux from the condenser to the evaporator; 3. Insufficient contact area of ​​the skirts results in weak tensile strength, posing a risk of leakage into the cavity. Existing laser wire bonding technology only applies along the sealing edge, making it difficult to effectively constrain the deformation of ultra-thin skirts. Therefore, we have made improvements and proposed an auxiliary wire bonding device for VC vapor chambers. Utility Model Content

[0003] The purpose of this invention is to address the problem that existing laser wire bonding technology, which only involves arranging the wires along the edge, is unable to effectively constrain the deformation of ultra-thin skirts.

[0004] To achieve the above-mentioned objectives, this utility model provides an auxiliary wire bonding device for a VC heat spreader to improve the aforementioned problems.

[0005] The application is as follows:

[0006] A VC vapor chamber heat exchanger auxiliary wire bonding device includes a VC vapor chamber body with a skirt. A plurality of auxiliary bonding wires are disposed on the skirt. This application utilizes auxiliary bonding wires on the skirt to constrain skirt deformation, significantly reducing defects such as waviness and warping, thereby improving fit with external components, accelerating liquid reflux efficiency, and optimizing the heat conduction performance of the vapor chamber. The increased auxiliary bonding wires also expand the contact area, strengthen edge tensile strength, and effectively reduce leakage from the VC vapor chamber body.

[0007] As a preferred technical solution of this application, the VC heat spreader body also has an edge sealing weld line and a sealing weld line, with the sealing weld line located between the two ends of the edge sealing weld line.

[0008] As a preferred technical solution of this application, the auxiliary welding wire is processed by laser welding process.

[0009] As a preferred technical solution of this application, the auxiliary bonding wire includes a plurality of skirt bonding wires, and the plurality of skirt bonding wires are all disposed on the skirt of the heat spreader.

[0010] As a preferred technical solution of this application, the skirt welding line is arranged perpendicular to the sealing welding line, and two adjacent skirt welding lines are arranged in parallel.

[0011] As a preferred technical solution of this application, the distance between two adjacent skirt welding lines is 3-4mm.

[0012] As a preferred technical solution of this application, the corners of the heat spreader skirt are rounded, and the auxiliary welding wires also include corner welding wires, which are set on the rounded corners.

[0013] As a preferred technical solution of this application, the corner welding line is located on the line connecting the inner and outer tangent points of the rounded corner.

[0014] As a preferred technical solution of this application, the corner welding lines and skirt welding lines are all covered with a nano-alumina coating.

[0015] As a preferred technical solution of this application, an oxide protective film is provided between the VC heat spreader body, the heat spreader skirt, the edge sealing weld line, the sealing weld line, the skirt weld line, and the corner weld line.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] In the scheme of this application:

[0018] To address the problem that existing laser wire bonding technologies, which only arrange wires along the edge, are insufficient to effectively constrain the deformation of ultra-thin skirts, this application proposes to install auxiliary wires on the skirt of the vapor chamber. These auxiliary wires constrain the deformation of the vapor chamber skirt, significantly reducing defects such as waviness and warping, thereby improving the fit with external components, accelerating liquid reflux efficiency, and optimizing the heat conduction performance of the vapor chamber. The added auxiliary wires also increase the contact area, strengthen edge tensile strength, and effectively reduce leakage from the cavity of the VC vapor chamber. Attached Figure Description

[0019] Figure 1 A schematic diagram of the auxiliary wire bonding device for the VC heat spreader provided in this application;

[0020] Figure 2 A partial structural schematic diagram of the VC heat spreader auxiliary wire bonding device provided in this application;

[0021] Figure 3 A schematic diagram of the corner welding wire structure of the auxiliary welding wire device for the VC heat spreader provided in this application.

[0022] The image shows:

[0023] 1. VC heat spreader body; 101. Heat spreader skirt; 102. Edge sealing weld line; 103. Sealing weld line; 2. Skirt weld line; 201. Corner weld line. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0025] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] Example 1, please refer to Figures 1-3 A VC vapor chamber heat exchanger auxiliary wire bonding device is disclosed, comprising a VC vapor chamber body 1, the VC vapor chamber body 1 having a vapor chamber skirt 101, on which a plurality of auxiliary bonding wires are disposed; by providing auxiliary bonding wires on the vapor chamber skirt 101, the auxiliary bonding wires can constrain the deformation of the vapor chamber skirt 101, significantly reduce defects such as waviness and warping, thereby improving the fit with external components, accelerating liquid reflux efficiency, and optimizing the heat conduction performance of the vapor chamber; the increased auxiliary bonding wires expand the contact area, strengthen the edge tensile strength, and effectively reduce liquid leakage from the cavity of the VC vapor chamber body.

[0028] Furthermore, the VC heat exchanger body 1 also has an edge sealing weld line 102 and a sealing weld line 103. The sealing weld line 103 is located between the two ends of the edge sealing weld line 102. The setting of the edge sealing weld line 102 and the sealing weld line 103 enhances the sealing performance of the VC heat exchanger body 1, reduces the leakage of its internal working medium, ensures stable internal pressure of the VC heat exchanger body 1, and maintains the heat exchange environment.

[0029] Furthermore, the auxiliary welding line is processed by laser welding, which is a mature technology. Laser welding has the characteristics of high energy density and high focusing. Due to the short welding process time and small heat-affected zone, it reduces thermal damage to surrounding materials.

[0030] Furthermore, the auxiliary welding lines include several skirt welding lines 2, which are all set on the skirt 101 of the heat spreader plate. The distribution of the skirt welding lines 2 on the skirt 101 of the heat spreader plate can uniformly constrain the deformation of the skirt 101 of the heat spreader plate, reducing the probability of defects such as wavy shape and warping.

[0031] Furthermore, the skirt welding line 2 is set perpendicular to the sealing welding line 102, and two adjacent skirt welding lines 2 are set parallel to each other, so that the skirt welding lines 2 can be arranged in a regular manner, and the regularly arranged skirt welding lines 2 are more aesthetically pleasing.

[0032] Furthermore, the distance between two adjacent skirt weld lines 2 is 3-4mm.

[0033] Furthermore, the corners of the heat spreader skirt 101 are rounded, and the auxiliary welding lines also include corner welding lines 201, which are set on the rounded corners. The geometry of the rounded corners can evenly distribute the stress to the surrounding area, avoiding stress concentration at the corners, while the corner welding lines 201 enhance the connection strength at the corners, making the corners more robust.

[0034] Furthermore, the corner weld line 201 is located on the line connecting the inner and outer tangent points of the rounded corner; on the line connecting the inner and outer tangent points of the rounded corner, the stress distribution is more uniform, and the corner weld line 201 can better resist the action of stress, thereby enhancing the stability at the corner.

[0035] Example 2 further optimizes the VC heat spreader auxiliary wire bonding device provided in Example 1. Specifically, the corner wire 201 and the skirt wire 2 are covered with a nano-alumina coating. The nano-alumina coating has good wear resistance and can effectively reduce the wear of the corner wire 201 and the skirt wire 2 during use. The nano-alumina coating can be applied by spraying or chemical vapor deposition.

[0036] Example 3 further optimizes the VC heat spreader auxiliary wire bonding device provided in Example 1. Specifically, an oxide protective film is provided between the VC heat spreader body 1, the heat spreader skirt 101, the edge sealing wire 102, the sealing wire 103, the skirt welding wire 2, and the corner welding wire 201. The oxide protective film enhances the oxidation and corrosion resistance of the entire VC heat spreader auxiliary wire bonding device, reduces the impact of oxidation and corrosion on the device during long-term use, and extends the service life of the device. The oxide protective film is formed by an organic coating, which can be an epoxy resin coating, a polyurethane coating, an acrylic coating, or a fluorocarbon coating. The oxide protective film can be formed by spraying.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A VC heat spreader auxiliary wire bonding device, characterized in that, It includes a VC heat exchanger body (1), the VC heat exchanger body (1) has a heat exchanger skirt (101), and a plurality of auxiliary welding lines are provided on the heat exchanger skirt (101).

2. The VC heat spreader auxiliary wire bonding device according to claim 1, characterized in that, The VC heat exchanger body (1) also has an edge sealing weld line (102) and a sealing weld line (103), with the sealing weld line (103) located between the two ends of the edge sealing weld line (102).

3. The VC heat spreader auxiliary wire bonding device according to claim 1, characterized in that, The auxiliary welding wire is manufactured using laser welding technology.

4. The VC heat spreader auxiliary wire bonding device according to claim 1, characterized in that, The auxiliary welding wires include a plurality of skirt welding wires (2), and the plurality of skirt welding wires (2) are all disposed on the skirt (101) of the heat exchange plate.

5. The VC heat spreader auxiliary wire bonding device according to claim 4, characterized in that, The skirt welding line (2) is set perpendicular to the sealing welding line (102), and two adjacent skirt welding lines (2) are set parallel to each other.

6. The VC heat spreader auxiliary wire bonding device according to claim 5, characterized in that, The distance between two adjacent skirt weld lines (2) is 3-4 mm.

7. The VC heat spreader auxiliary wire bonding device according to claim 4, characterized in that, The corners of the heat exchange plate skirt (101) are rounded, and the auxiliary welding line also includes a corner welding line (201), which is set on the rounded corner.

8. The VC heat spreader auxiliary wire bonding device according to claim 7, characterized in that, The corner weld line (201) is located on the line connecting the inner and outer tangent points of the rounded corner.

9. The VC heat spreader auxiliary wire bonding device according to claim 7, characterized in that, Both the corner weld line (201) and the skirt weld line (2) are covered with a nano-alumina coating.

10. The VC heat spreader auxiliary wire bonding device according to claim 7, characterized in that, An oxide protective film is provided between the main body (1) of the VC heat exchanger plate, the heat exchanger plate skirt (101), the edge sealing weld line (102), the sealing weld line (103), the skirt weld line (2), and the corner weld line (201).

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