Vapor chamber workpiece welding jig and welding method

Abstract

The invention relates to the technical field of welding equipment, in particular to a uniform-temperature plate workpiece welding jig and a welding method, the uniform-temperature plate workpiece welding jig is used for accurately positioning and fixing a uniform-temperature plate workpiece in the welding process, the uniform-temperature plate workpiece welding jig comprises a first clamping mechanism, a second clamping mechanism and a third clamping mechanism, the first clamping mechanism comprises a first base with an adjustable clamping gap, and the first clamping mechanism is used for clamping a first part of the uniform-temperature plate workpiece; the second clamping mechanism comprises a second base and a second clamping structure, and a clamping channel formed between the second base and the second clamping structure is used for clamping the radiator assembly; the second part of the uniform-temperature plate workpiece and the contact surface of the radiator assembly form a welding connection area, and the extension direction of the clamping channel is perpendicular to the extension direction of the uniform-temperature plate workpiece; accurate positioning of a vapor chamber workpiece and a radiator assembly in the welding process is ensured, welding dislocation is prevented, stable fixing is achieved, the welding quality is improved, and therefore the consistency and reliability of products are improved. The device has the characteristics of simple and reasonable structure and convenience in use, and can meet the requirements of users.

Description

Technical Field

[0001] The present invention relates to the technical field of welding equipment, and in particular to a temperature equalizing plate workpiece welding fixture and a welding method. Background Art

[0002] Vapor chambers are widely used in electronic equipment heat dissipation modules, new energy vehicle battery thermal management systems and other fields due to their excellent thermal conductivity, lightweight characteristics and compact structure. Their core function is to use the principle of phase change heat transfer to quickly and evenly transfer heat from local high-temperature areas to the entire vapor chamber surface, thereby improving overall heat dissipation efficiency. In these applications, in order to ensure heat dissipation performance, it is usually necessary to reliably connect the vapor chamber workpiece to the radiator assembly, and welding is an important manufacturing process to achieve this connection.

[0003] In existing welding technology, due to the high thermal conductivity of aluminum and its easy oxidation during welding, high requirements are placed on the welding process. At the same time, during the heating and welding process, the temperature plate workpiece and the radiator assembly may change in size due to thermal expansion, resulting in positioning deviation, welding misalignment or uneven joining, affecting the welding quality. In addition, as a key auxiliary tool in the welding process, the structural design of the welding fixture is directly related to the fixation stability and welding accuracy of the workpiece.

[0004] However, the existing welding jigs are usually difficult to accurately position the temperature plate workpiece and the heat sink assembly, which can easily cause the workpiece to shift or deform during the welding process, affecting the reliability of the final product. Therefore, it is necessary to study and improve the structure of such welding jigs; in order to solve the above problems, the concept of this application is proposed. Summary of the invention

[0005] The object of the present invention is to provide a temperature equalizing plate workpiece welding jig to solve at least one of the above-mentioned defects in the prior art.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a welding jig for a temperature-averaging plate workpiece, which is used to accurately position and fix the temperature-averaging plate workpiece during the welding process, and the welding jig comprises: a first clamping mechanism, which comprises a first base with an adjustable clamping gap and a first clamping structure, and is used to clamp the first part of the temperature-averaging plate workpiece; a second clamping mechanism, which comprises a second base and a second clamping structure, and a clamping channel formed between the second base and the second clamping structure is used to clamp the heat sink assembly; wherein the contact surface between the second part of the temperature-averaging plate workpiece and the heat sink assembly constitutes a welding connection area, and the extension direction of the clamping channel is perpendicular to the extension direction of the temperature-averaging plate workpiece.

[0007] A further improvement of the present invention is that the first clamping structure includes a first locking component and a first clamping plate. The first locking component is used to adjust the movement of the first clamping plate in a direction perpendicular to the heat pipe workpiece and can fix the first clamping plate.

[0008] A further improvement of the present invention is that the second clamping structure includes a second locking component and a second clamping plate. The second locking component is used to adjust the movement of the second clamping plate in a direction perpendicular to the radiator assembly and can fix the second clamping plate.

[0009] A further improvement of the present invention is that the radiator assembly includes a first radiating part and a second radiating part, and the two are arranged perpendicularly, so that the corresponding part of the heat pipe workpiece is clamped between the first radiating part and the second radiating part.

[0010] A further improvement of the present invention is that the first base is a size adjustment mechanism, including:

[0011] A first lateral adjustment component, arranged at symmetric positions on both sides of the first base, for adjusting the clamping distance in the width direction of the heat pipe workpiece by sliding towards or away from each other;

[0012] A first longitudinal adjustment support, arranged at the front and rear ends of the first base, for adjusting the clamping distance in the length direction of the heat pipe workpiece by telescoping;

[0013] Wherein, the sliding direction of the first lateral adjustment component is orthogonal to the telescoping direction of the first longitudinal adjustment support, and the movement planes of the two are parallel to the installation plane of the heat pipe.

[0014] A further improvement of the present invention is that the second base is a size adjustment mechanism, including:

[0015] A second lateral adjustment component, arranged at symmetric positions on both sides of the second base, for adjusting the clamping distance in the width direction of the radiator assembly by sliding towards or away from each other;

[0016] A second longitudinal adjustment support, arranged at the front and rear ends of the second base, for adjusting the clamping distance in the length direction of the radiator assembly by telescoping;

[0017] Wherein, the sliding direction of the second lateral adjustment component is orthogonal to the telescoping direction of the second longitudinal adjustment support, and the movement planes of the two are parallel to the installation plane of the radiator assembly.

[0018] A further improvement of the present invention is that at least one heat conduction block is arranged between the first base of the first clamping mechanism and the first clamping structure, and the heat conduction block is embedded in the contact surface between the first clamping structure and the heat pipe workpiece.

[0019] For a further improvement of the present invention, at least two heat conduction blocks are provided between the second base of the second clamping mechanism and the second clamping structure, and the two heat conduction blocks are respectively arranged on the top of the radiator assembly and the contact surface at the top.

[0020] For a further improvement of the present invention, the heat conduction block is made of graphite or graphite composite material.

[0021] 10. A welding method based on the welding jig, comprising the following steps:

[0022] S1. Place the heat pipe workpiece into the welding jig, fix the first part of the heat pipe workpiece by using the first clamping mechanism, and fix the radiator assembly by using the second clamping mechanism, so that the contact surface between the second part of the heat pipe workpiece and the radiator assembly forms a welding connection area;

[0023] S2. Place the welding jig into a welding furnace and heat it to a temperature range suitable for welding;

[0024] S3. Under the heating state, realize the welding of the heat pipe workpiece and the radiator assembly through the melting of the solder;

[0025] S4. After welding is completed, slowly cool it to a safe temperature and release the clamping mechanism, so as to take out the welded heat pipe workpiece.

[0026] Compared with the prior art, the present invention has at least the following beneficial effects:

[0027] This kind of heat pipe workpiece welding jig is used to accurately position and fix the heat pipe workpiece during the welding process. The welding jig includes: a first clamping mechanism, which includes a first base and a first clamping structure with an adjustable clamping gap, and is used to clamp the first part of the heat pipe workpiece; a second clamping mechanism, which includes a second base and a second clamping structure, and the clamping channel formed between the second base and the second clamping structure is used to clamp the radiator assembly; wherein, the contact surface between the second part of the heat pipe workpiece and the radiator assembly forms a welding connection area, and the extending direction of the clamping channel is perpendicular to the extending direction of the heat pipe workpiece; through the above design, it is ensured that the heat pipe workpiece and the radiator assembly are accurately positioned during the welding process, preventing welding misalignment, stably fixing and improving the welding quality, thereby improving the consistency and reliability of the product; moreover, it has the characteristics of simple and reasonable structure and convenient use, and can meet the needs of users.

[0028] The present invention will be further described below in conjunction with the specification drawings and specific embodiments. Description of the Drawings

[0029] Figure 1 It is a reference structural schematic diagram of the assembled state of the welding jig of the present invention and the heat pipe workpiece;

[0030] Figure 2 This is a schematic diagram of the overall structure of the welding fixture of the present invention;

[0031] Figure 3 This is a three-dimensional structure diagram of the second clamping mechanism of the present invention;

[0032] Figure 4 This is a partial structure diagram of the second clamping mechanism of the present invention;

[0033] Figure 5 This is a three-dimensional structure diagram of the first clamping mechanism of the present invention;

[0034] Figure 6 This is an exploded structure diagram of the second clamping mechanism of the present invention;

[0035] Figure 7 This is a reference structure diagram of the assembled state of the heat pipe workpiece and the radiator assembly of the present invention;

[0036] Figure 8 This is an exploded structure diagram of the heat pipe workpiece and the radiator assembly of the present invention;

[0037] Figure 9 This is a structure diagram of the heat conduction block distributed in the first clamping mechanism and / or the second clamping mechanism of the present invention.

[0038] Reference numerals: 1, heat pipe workpiece; 11, first part; 12, second part; 2, welding fixture; 21, first clamping mechanism; 211, first base; 212, first clamping structure; 213, first locking component; 214, first clamping plate; 22, second clamping mechanism; 221, second base; 222, second clamping structure; 223, second locking component; 224, second clamping plate; 23, clamping channel; 3, welding connection area; 4, radiator assembly; 41, first component; 42, second component; 2111, first lateral adjustment component; 2112, first longitudinal adjustment support; 2211, second lateral adjustment component; 2212, second longitudinal adjustment support; 7, heat conduction block. Detailed implementation manners

[0039] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and the like shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. Among them, there are various ways of detachable installation. For example, it can be in a way of cooperation between plugging and buckling, or in a way of bolt connection, etc.

[0040] The present invention will be described in more detail below in conjunction with specific embodiments. However, the implementation manners of the present invention are not limited thereto. The embodiments are exemplary and are intended to explain the present invention, but should not be construed as a limitation of the present invention. For process parameters or conditions not specifically noted, reference may be made to conventional techniques.

[0041] Please refer to Figures 1-9 As shown, the technical solution adopted in this specific implementation manner is as follows: This embodiment provides a welding fixture 2 for a heat pipe workpiece 1, which is used to accurately position and fix the heat pipe workpiece 1 during the welding process. In this embodiment, the welding fixture 2 includes a first clamping mechanism 21 and a second clamping mechanism 22. The first clamping mechanism 21 is composed of a first base 211 and a first clamping structure 212, and has an adjustable clamping gap for firmly clamping the first part 11 of the heat pipe workpiece 1. The second clamping mechanism 22 is composed of a second base 221 and a second clamping structure 222, and the clamping channel 23 formed by it is used to fix the radiator assembly 4. The contact surface between the second part 12 of the heat pipe workpiece 1 and the radiator assembly 4 constitutes a welding connection area 3, and the extending direction of the clamping channel 23 is perpendicular to the extending direction of the heat pipe workpiece 1. Through the above design, it is ensured that the heat pipe workpiece 1 and the radiator assembly 4 are accurately positioned during the welding process, preventing welding misalignment, stably fixing and improving the welding quality, thereby enhancing the consistency and reliability of the product.

[0042] In other implementation manners, the first clamping mechanism 21 and the second clamping mechanism 22 can adopt different locking methods, such as magnetic attraction locking or hydraulic clamping, etc., to adapt to different specifications of the heat pipe workpiece 1 and the radiator assembly 4.

[0043] This embodiment further optimizes the first clamping structure 212 and the second clamping structure 222 to improve the stability of the welding fixture 2. In this embodiment, the first clamping structure 212 includes a first locking component 213 and a first clamping plate 214. The first locking component 213 can adjust the movement of the first clamping plate 214 in a direction perpendicular to the heat pipe workpiece 1 and can apply a pressing force during the welding process to limit the displacement of the heat pipe workpiece 1. The second clamping structure 222 includes a second locking component 223 and a second clamping plate 224. The second locking component 223 can adjust the movement of the second clamping plate 224 in a direction perpendicular to the radiator assembly 4 and apply a pressing force during the welding process to keep the radiator assembly 4 and the heat pipe workpiece 1 parallel and in close contact within the welding connection area 3. However, by adopting an adjustable clamping structure, the stability of the workpiece during the welding process can be ensured, avoiding displacement caused by thermal expansion or external forces and guaranteeing the welding quality.

[0044] In other embodiments, the clamping plates of the first clamping mechanism 21 and the second clamping mechanism 22 can be made of different materials, such as high-temperature resistant ceramics or high-strength alloys, to meet the welding requirements in different temperature environments.

[0045] This embodiment provides an adjustable size adjustment mechanism to adapt to heat sinks 4 and vapor chambers 1 of different sizes. In this embodiment, the first base 211 is provided with a first lateral adjustment component 2111 and a first longitudinal adjustment support 2112. The first lateral adjustment component 2111 adjusts the clamping distance in the width direction of the vapor chamber 1 by sliding, while the first longitudinal adjustment support 2112 adjusts the clamping distance in the length direction of the vapor chamber 1 by telescoping. Similarly, the second base 221 includes a second lateral adjustment component 2211 and a second longitudinal adjustment support 2212 for adjusting the clamping size of the heat sink 4. However, the design of this structure can be adjusted according to workpieces of different sizes, improving the versatility and application range of the jig.

[0046] In other embodiments, the lateral adjustment component and the longitudinal adjustment support can adopt electric adjustment or an automatic detection system to improve the accuracy and convenience of adjustment.

[0047] This embodiment provides a design for optimizing heat conduction to improve the thermal uniformity of the welding area. In this embodiment, at least one heat conduction block 7 is provided between the first base 211 and the first clamping structure 212 of the first clamping mechanism 21. The heat conduction block 7 is embedded in the contact surface between the first clamping structure 212 and the vapor chamber 1, enabling the vapor chamber 1 in the clamping area to be heated evenly during welding. At the same time, two heat conduction blocks 7 are provided between the second base 221 and the second clamping structure 222 of the second clamping mechanism 22, respectively located at the contact surfaces of the top and bottom of the heat sink 4, to ensure that the heat sink 4 is heated evenly during welding. Through this optimized design, local overheating or overcooling can be avoided, the welding quality can be improved, and welding defects can be reduced.

[0048] In addition, at least one heat conduction block 7 is provided between the first clamping mechanism 21 and the second clamping mechanism 22. The heat conduction block 7 is vertically clamped between the two, and one of its side surfaces is in contact with the side surface of the heat sink 4; to achieve vertical heat conduction and structural reinforcement.

[0049] In other embodiments, the heat conduction block 7 can be made of different materials, such as copper-based alloys or high thermal conductivity ceramics, to meet the requirements of different welding processes.

[0050] This embodiment provides a welding method based on this welding jig. The welding method includes the following steps:

[0051] First, place the heat pipe workpiece 1 into the welding jig 2 described in claim 1. Use the first clamping mechanism 21 to fix the first part 11 of the heat pipe workpiece 1, and use the second clamping mechanism 22 to fix the radiator assembly 4, so that the contact surface between the second part 12 of the heat pipe workpiece 1 and the radiator assembly 4 forms a welding connection area 3;

[0052] Place the welding jig 2 in a welding furnace and heat it to a temperature range suitable for welding;

[0053] In the heating state, weld the heat pipe workpiece 1 and the radiator assembly 4 by melting the solder;

[0054] After welding is completed, slowly cool it to a safe temperature and release the clamping mechanism, thereby taking out the welded heat pipe workpiece 1.

[0055] However, through this method, the consistency and reliability of welding can be effectively improved, and deformation or position offset during the welding process can be avoided.

[0056] In other embodiments, a real-time temperature monitoring system can be combined, and the temperature of the welding furnace can be adjusted through a feedback mechanism to improve the accuracy of the welding process.

[0057] In summary, the welding jig and welding method for the heat pipe workpiece can ensure the accurate positioning of the heat pipe workpiece and the radiator assembly during the welding process, prevent welding misalignment, stably fix and improve the welding quality, thereby enhancing the consistency and reliability of the product; moreover, it has the characteristics of simple and reasonable structure and convenient use, and can meet the needs of users.

[0058] The above combines examples and drawings to clearly and completely describe the concept, specific structure and technical effects of the present invention, so as to fully understand the purpose, features and effects of the present invention. Obviously, the described examples are only a part of the examples of the present invention, rather than all the examples. Based on the examples of the present invention, other examples obtained by those skilled in the art without creative labor fall within the protection scope of the present invention. In addition, all the connection / connection relationships mentioned in the text do not simply refer to the direct connection of components, but refer to the more optimal connection structure that can be formed by adding or reducing connection accessories according to the specific implementation situation.

[0059] The specific description of the present invention in the above examples is only used to further illustrate the present invention and cannot be understood as a limitation on the protection scope of the present invention. Non-essential improvements and adjustments made by technical engineers in the art to the present invention based on the content of the above invention all fall within the protection scope of the present invention.

Claims

1. A temperature-average plate workpiece welding jig, used to accurately position and fix the temperature-average plate workpiece during welding, characterized in that: The welding fixture includes: A first clamping mechanism, comprising a first base with an adjustable clamping gap and a first clamping structure, for clamping a first portion of the temperature homogenizing plate workpiece; A second clamping mechanism comprises a second base and a second clamping structure, wherein a clamping channel formed between the second base and the second clamping structure is used for clamping the heat sink assembly; The second part of the temperature homogenizing plate workpiece and the contact surface of the heat sink assembly form a welding connection area, and the extension direction of the clamping channel is perpendicular to the extension direction of the temperature homogenizing plate workpiece.

2. The welding jig according to claim 1, characterized in that: The first clamping structure includes a first locking assembly and a first clamping plate. The first locking assembly is used to adjust the first clamping plate to move in a direction perpendicular to the temperature homogenizing plate workpiece and can fix the first clamping plate.

3. The welding jig according to claim 1, characterized in that: The second clamping structure includes a second locking assembly and a second clamping plate. The second locking assembly is used to adjust the second clamping plate to move in a direction perpendicular to the heat sink assembly and can fix the second clamping plate.

4. The welding jig according to claim 1, characterized in that: The heat sink assembly includes a first piece and a second piece, and the two pieces are arranged in a vertical manner, so that a corresponding portion of the vapor chamber workpiece is clamped between the first piece and the second piece.

5. The welding jig according to claim 1, characterized in that: The first base is a size adjustment mechanism, comprising: A first lateral adjustment assembly is disposed at symmetrical positions on both sides of the first base, and is used to adjust the clamping spacing of the temperature homogenizing plate in the width direction of the workpiece by sliding toward or away from each other; A first longitudinal adjustment support member is provided at the front and rear ends of the first base, and is used to adjust the clamping distance of the temperature homogenizing plate workpiece in the length direction by telescoping; The sliding direction of the first transverse adjustment component is orthogonal to the telescopic direction of the first longitudinal adjustment support, and the movement planes of the two are parallel to the installation plane of the temperature homogenizing plate.

6. The welding jig according to claim 1, characterized in that: The second base is a size adjustment mechanism, comprising: A second lateral adjustment assembly is disposed at symmetrical positions on both sides of the second base, and is used to adjust the clamping spacing in the width direction of the radiator assembly by sliding toward or away from each other; A second longitudinal adjustment support member, disposed at the front and rear ends of the second base, for adjusting the clamping spacing of the heat sink assembly in the length direction by telescoping; Wherein, the sliding direction of the second transverse adjustment component is orthogonal to the telescopic direction of the second longitudinal adjustment support, and the movement planes of the two are parallel to the installation plane of the radiator component.

7. The welding jig according to claim 1, characterized in that: At least one heat conduction block is arranged between the first base of the first clamping mechanism and the first clamping structure, and the heat conduction block is embedded in the contact surface between the first clamping structure and the temperature homogenizing plate workpiece.

8. The welding jig according to claim 1, characterized in that: At least two heat conduction blocks are arranged between the second base of the second clamping mechanism and the second clamping structure, and the two heat conduction blocks are respectively arranged on the top of the heat sink assembly and the contact surface of the top.

9. The welding jig according to claim 7 or 8, characterized in that: The heat conduction block is made of graphite or a graphite composite material.

10. A welding method based on the welding jig, characterized in that: The following steps are involved: S1. Place the temperature-vaporizing plate workpiece into the welding fixture according to claim 1, fix the first part of the temperature-vaporizing plate workpiece by a first clamping mechanism, and fix the heat sink assembly by a second clamping mechanism, so that the second part of the temperature-vaporizing plate workpiece and the contact surface of the heat sink assembly form a welding connection area; S2. The welding fixture is placed in a welding furnace and heated to a temperature range suitable for welding; S3. Under the heating state, the temperature plate workpiece and the radiator assembly are welded by solid melting of the solder; S4. After welding is completed, slowly cool to a safe temperature and release the clamping mechanism to remove the welded temperature equalizing plate workpiece.

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