Special electrode for parallel sealing of reverse plug-in sockets

Abstract

The present invention belongs to the technical field of component packaging, and specifically relates to a special electrode for parallel sealing of a reverse plug-in tube socket, comprising: an electrode head of a truncated cone structure and a connecting section of a cylindrical structure, the connecting section of the cylindrical structure being on the side of the electrode head of the truncated cone structure with the smallest diameter; the centers of the electrode head of the truncated cone structure and the connecting section of the cylindrical structure are aligned; the thickness of the electrode head of the truncated cone structure is 2.3 mm; a hollow groove is provided at the center of the electrode head of the truncated cone structure; the diameter of the upper bottom surface of the electrode head of the truncated cone structure is 29.03 mm; the inclination of the electrode head of the truncated cone structure is 12°; the present invention reduces the thickness of the electrode, effectively avoiding the arc phenomenon caused by the contact between the electrode end and the tube socket pin during sealing, thereby protecting the normal appearance of the device; the present invention increases the diameter of the electrode, avoiding the pin colliding with the electrode and the electrode rod during the sealing process, thereby deforming the pin; the present invention ensures the airtightness of the device by changing the electrode degree.

Description

Technical Field

[0001] The invention belongs to the technical field of component packaging, and in particular relates to a special electrode for parallel sealing welding of a reverse direct-insertion tube socket. Background Art

[0002] The difference between the reverse plug-in socket and the straight plug-in socket is that the direction of the socket pins is different. The pins of the straight plug-in socket are perpendicular to the bottom of the socket sealing surface, while the pins of the reverse plug-in socket are perpendicular to the top of the socket sealing surface.

[0003] In the actual operation of the parallel welding process, the pins of the reverse plug-in socket are vertically facing upwards, which blocks the contact track between the electrode and the welding edge, making welding impossible. The welding can only be carried out normally by bending the pins to be parallel to the welding edge through external force. However, forcibly changing the direction of the pins can easily cause the sintering part (insulating medium) between the pins and the metal socket to crack due to the influence of external force, and after the welding is completed, external force needs to be applied again to restore the pins to their original state, which causes the pins to be repeatedly affected by external forces, and are very likely to bend and deform, which not only seriously damages the appearance of the device, but also increases the possibility of cracking of the insulating medium, causing the device to fail to meet the airtightness standard.

[0004] Therefore, the above prior art cannot prevent the pins from being deformed, bent or broken and ensure the airtightness of the device while performing normal sealing. Summary of the invention

[0005] In order to solve the above-mentioned problems in the prior art, the present invention adopts a special electrode for parallel sealing of reverse straight-insert tube sockets, including: an electrode head with a frustum structure and a connecting section with a cylindrical structure, wherein the connecting section with the cylindrical structure is on the side with the largest diameter of the electrode head with the frustum structure, and the centers of the electrode head with the frustum structure and the connecting section with the cylindrical structure are aligned.

[0006] Furthermore, the thickness of the electrode head with the truncated cone structure is 2.3 mm.

[0007] Furthermore, a hollow groove is provided at the center of the electrode head of the truncated cone structure.

[0008] Furthermore, the diameter of the upper bottom surface of the electrode head of the truncated cone structure is 29.03 mm.

[0009] Furthermore, the inclination of the electrode head of the truncated cone structure is 12°.

[0010] Furthermore, the material of the special electrode is NBC material; the NBC is niobium carbide.

[0011] Beneficial effects:

[0012] 1. The present invention reduces the thickness of the electrode, thereby effectively avoiding arcing caused by the contact between the electrode end and the tube holder pin during sealing welding, thereby protecting the normal appearance of the device; 2. The present invention increases the diameter of the electrode, so that during the sealing welding process, the electrode only contacts the sealing welding edge of the tube holder, thereby avoiding the pin from colliding with the electrode and the electrode rod during the sealing welding process, causing the pin to bend and deform; 3. The present invention ensures the airtightness of the device by changing the electrode degree, thereby preventing the device from failing due to air leakage at the sealing welding edge. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A conventional electrode structure diagram for parallel sealing welding of a reverse plug-in tube socket provided in an embodiment of the present invention;

[0014] Figure 2 A diagram of a special electrode structure for parallel sealing welding of a reverse plug-in tube socket provided in an embodiment of the present invention;

[0015] Figure 3 A top view of a special electrode for parallel sealing welding of a reverse plug-in tube socket provided in an embodiment of the present invention;

[0016] Figure 4 A schematic diagram of a special electrode for parallel sealing welding of a reverse plug-in tube socket provided by an embodiment of the present invention;

[0017] Among them, 1 is an electrode head of a truncated cone structure, 2 is a connecting section of a cylindrical structure, and 3 is a hollow groove. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0019] In the actual operation of the parallel sealing process, the dimensions of the electrodes used in the prior art are as follows: Figure 1 As shown;

[0020] like Figure 2 , Figure 3 , Figure 4 As shown, the special electrode for parallel sealing welding of the reverse plug-in tube socket according to the embodiment of the present invention is specifically described as follows:

[0021] The special electrode of the present invention comprises an electrode head of a truncated cone structure and a connecting section of a cylindrical structure, wherein the electrode head of the truncated cone structure has a hollow groove in the center, and the connecting section of the cylindrical structure is on the side with the largest diameter of the electrode head of the truncated cone structure, and the centers of the electrode head of the truncated cone structure and the connecting section of the cylindrical structure are aligned; the shape of the hollow groove is a combination of two cylinders of different diameters, with diameters of 5.3 mm and 4.55 mm respectively; wherein the diameter of the cylinder adjacent to the connecting section of the cylindrical structure is the same as the inner diameter of the connecting section, i.e. 4.55 mm.

[0022] The thickness of the electrode head is reduced from 6mm to 2.3mm, which effectively avoids the arc phenomenon caused by the contact between the electrode end and the tube socket pin during sealing welding, protecting the normal appearance of the device. The corresponding connecting section has a length of 3.7mm and an outer diameter of 8.5mm, which is used to connect the electrode rod of the parallel seam welding machine.

[0023] The electrode diameter is increased so that during the sealing process, the electrode only contacts the sealing edge of the tube holder, thus avoiding the pin colliding with the electrode and the electrode rod during the sealing process, causing the pin to bend and deform;

[0024] In one embodiment, the diameter of the bottom surface of the electrode is increased to 29.03 mm, and the electrode degree is changed from the conventional 10° to 12° as the degree of this special electrode.

[0025] Changes in electrode degree (slope):

[0026] 1) The electrode degree (inclination) determines the size of the weld spot of the sealing edge, and the size of the weld spot directly affects the width of the sealing edge. When the electrode degree remains the same, the increase in the electrode radius increases the size of the weld spot. Assuming the sealing power remains unchanged, the sealing effect of the sealing edge will be reduced, causing sealing leakage and causing device sealing failure.

[0027] 2) If the sealing power is increased, the sealing heat will increase accordingly, and excessive heat will affect the internal circuit parameters of the device.

[0028] Therefore, in order not to affect the internal circuit parameters of the device, maintaining the original set sealing parameters, changing the electrode degree to ensure the sealing effect is the best choice. After experiments, it is concluded that changing the electrode from the conventional 10° to 12° as the degree of this special electrode ensures the airtightness of the device; the airtightness yield rate of the special electrode packaging using the present invention is greater than 99%.

[0029] Therefore, adjusting the thickness and radius of the electrode head through the above steps can avoid the pin colliding with the electrode and the electrode rod during the sealing process, causing the pin to bend and deform. The degree of the electrode head is adjusted accordingly according to the thickness and radius of the electrode head to ensure the airtightness of the device.

[0030] In addition, in some embodiments, the electrode material is NBC material, which ensures the hardness of the electrode, effectively avoids arcing during parallel sealing, and improves the melting effect of the sealing edge.

[0031] The above embodiments further illustrate the purpose, technical solutions and advantages of the present invention in detail. It should be understood that the above embodiments are only preferred implementation modes of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made to the present invention within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A special electrode for parallel sealing of reverse plug-in sockets, characterized in that: include: The electrode head of the truncated cone structure and the connecting section of the cylindrical structure, the connecting section of the cylindrical structure is on the side of the electrode head of the truncated cone structure with the largest diameter, and the centers of the electrode head of the truncated cone structure and the connecting section of the cylindrical structure are aligned.

2. The special electrode for parallel sealing welding of reverse plug-in tube socket according to claim 1, characterized in that: The thickness of the electrode head with the truncated cone structure is 2.3 mm.

3. The special electrode for parallel sealing welding of reverse plug-in tube socket according to claim 1, characterized in that: The center of the electrode head of the truncated cone structure is provided with a hollow groove.

4. The special electrode for parallel sealing welding of reverse plug-in tube socket according to claim 1, characterized in that: The diameter of the upper bottom surface of the electrode head of the truncated cone structure is 29.03 mm.

5. The special electrode for parallel sealing welding of reverse plug-in tube socket according to claim 1, characterized in that: The inclination of the electrode head of the truncated cone structure is 12°.

6. The special electrode for parallel sealing welding of reverse plug-in tube socket according to claim 1, characterized in that: The material of the special electrode is NBC material; the NBC is niobium carbide.

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