A ceramic insulator for electronic packaging

Abstract

The utility model relates to electronic packaging technical field especially relates to a kind of ceramic insulator for electronic packaging.The ceramic insulator for electronic packaging includes: ceramic ring, sliding rod, elastic component, the inner ring of ceramic ring is fixedly connected with sealing layer, the inner circle of sealing layer is equipped with pinhole, the outer part of both ends of ceramic ring is threadedly connected with cover, the inner circle of cover is equipped with through-hole, the inner diameter of through-hole is greater than the inner diameter of pinhole, the inner wall of cover is slidably connected with multiple sliding rods, the similar side of multiple sliding rods is fixedly connected with clamping block, the similar side of multiple clamping blocks is fixedly connected with high-temperature fiber pad, the inside of cover is equipped with multiple accommodating holes, and elastic component is installed in the inside of accommodating hole.The utility model avoids that stress directly involves the rigid sealing layer of ceramic ring and pinhole, greatly reduces ceramic cracking, pin fracture risk, sealing layer and ceramic ring, pinhole seamlessly fit, guarantee the sealing property and insulating property of electronic packaging.

Description

Technical Field

[0001] This utility model relates to the field of electronic packaging technology, and in particular to a ceramic insulator for electronic packaging. Background Technology

[0002] Ceramic insulators for electronic packaging are a key ceramic component. In the electronic packaging process, they mainly play the roles of insulation and sealing, isolating the package shell from the leads. At the same time, through the fusion sealing process, they are tightly integrated with the shell and leads into a whole, ensuring the reliability of insulation between the internal circuit of the electronic component and the external environment, and ensuring the normal operation and stable performance of the electronic device.

[0003] Most ceramic insulators use a rigid seal for the pins throughout the entire length, such as fusion sealing between the pins and the through-hole of the ceramic ring. However, since the pins are fixed inside the ceramic ring, the parts extending beyond the ceramic at both ends are not fixed. The exposed parts can deform due to collisions or bending, which can affect the rigid seal section and lead to ceramic cracking or pin breakage.

[0004] Therefore, it is necessary to provide a new ceramic insulator for electronic packaging to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a ceramic insulator for electronic packaging.

[0006] This utility model provides a ceramic insulator for electronic packaging, comprising: a ceramic ring, sliding rods, and elastic components. A sealing layer is fixedly connected to the inner ring of the ceramic ring, and a pin hole is formed in the inner ring of the sealing layer. Both ends of the ceramic ring are threadedly connected to caps. A through hole is formed in the inner ring of the cap, the inner diameter of which is larger than the inner diameter of the pin hole. Multiple sliding rods are slidably connected to the inner wall of the cap. Clamping blocks are fixedly connected to adjacent sides of the multiple sliding rods, and high-temperature fiber pads are fixedly connected to adjacent sides of the multiple clamping blocks. Multiple receiving holes are formed inside the cap, and elastic components are installed inside the receiving holes.

[0007] Preferably, the elastic component includes a telescopic spring, the outer surface of which is disposed inside the receiving hole, and a limit plate is slidably connected to the inner wall of the receiving hole.

[0008] Preferably, the sealing layer is made of gold-tin alloy solder, and the sealing layer is seamlessly bonded to the inner ring of the ceramic ring and the hole wall of the pin hole.

[0009] Preferably, the cross-section of the clamping block is arc-shaped, the curvature of the arc is adapted to the outer peripheral curvature of the pin, and the surface of the high-temperature fiber pad is provided with anti-slip texture.

[0010] Preferably, the adjacent sides of the plurality of limiting discs are fixedly connected to the distant sides of the plurality of sliding rods.

[0011] Preferably, one end of the telescopic spring is fixedly connected to one side of the inner wall of the receiving hole, and the other end of the telescopic spring is fixedly connected to the side of the limiting plate away from the sliding rod.

[0012] Preferably, the ceramic ring has external threads on its outer periphery at both ends, the cap has internal threads on its inner wall, and a sealing gasket is provided between the ceramic ring and the cap.

[0013] Compared with related technologies, the ceramic insulator for electronic packaging provided by this utility model has the following beneficial effects: This invention utilizes the cooperation of an inner sliding rod, clamping block, and elastic component to absorb external forces generated by collisions and bending through the elastic deformation of a telescopic spring. This avoids stress directly affecting the rigid sealing layer between the ceramic ring and the pin hole, significantly reducing the risk of ceramic cracking and pin breakage. Furthermore, the seamless fit between the sealing layer and the ceramic ring and pin hole ensures the sealing and insulation properties of the electronic package. Attached Figure Description

[0014] Figure 1 A schematic diagram of the structure of a ceramic insulator for electronic packaging provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the ceramic ring. Figure 3 for Figure 1 The diagram shows the structure of the cap.

[0015] The following are the labels in the diagram: 1. Ceramic ring; 2. Sealing layer; 3. Pin hole; 4. Cover; 5. Through hole; 6. Sliding rod; 7. Clamping block; 8. High-temperature fiber pad; 9. Receiving hole; 10. Telescopic spring; 11. Limiting plate. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0017] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0018] Please see Figures 1 to 3A ceramic insulator for electronic packaging includes a ceramic ring 1, which serves as the basic load-bearing and insulating component. A sealing layer 2 is fixedly connected to the inner ring of the ceramic ring 1. This sealing layer 2 is made of a gold-tin alloy solder, which exhibits good fluidity during high-temperature melting and sealing, ensuring the sealing performance of the weld. This creates a reliable first-level sealing and insulating barrier between the pins and the ceramic ring 1. Pin holes 3 are machined into the inner ring of the sealing layer 2 according to the pin adaptation specifications, ensuring the compatibility between the pins and the sealing layer 2 after insertion. A cover 4 is assembled to the outer ends of the ceramic ring 1 via a threaded connection. Specifically, external threads are pre-machined on the outer circumference of both ends of the ceramic ring 1, and corresponding internal threads are machined on the inner wall of the cover 4. During the screwing process, a stable connection is achieved through the mechanical interlocking force of the threads. Simultaneously, the fit between the ceramic ring 1 and the cover 4... A sealing gasket is added between the surfaces to fill the tiny gaps using the elastic deformation of the sealing gasket, further enhancing the sealing of the connection and preventing external moisture and impurities from entering along the thread gaps. The inner ring of the cover 4 has a through hole 5, the inner diameter of which is designed to be larger than the inner diameter of the pin hole 3, providing sufficient space for clamping operations after the pin is inserted. The inner wall of the cover 4 with the through hole 5 has multiple sliding rods 6 slidably connected in a circumferentially distributed manner. A clamping block 7 is fixedly connected to the adjacent side of the multiple sliding rods 6. The cross-section of the clamping block 7 is specially designed to be arc-shaped, and its arc curvature is adapted to the outer circumferential curvature of common pins to ensure a close fit with the outer circle of the pin. A high-temperature fiber pad 8 is fixedly connected to the adjacent side of the multiple clamping blocks 7. The surface of the high-temperature fiber pad 8 is processed with anti-slip texture to increase the friction with the pin surface and improve clamping stability.

[0019] Inside the cover 4, multiple receiving holes 9 are provided according to the distribution positions of the sliding rods 6. Elastic components are installed inside the receiving holes 9. The external adapter of the telescopic spring 10 is installed in the internal space of the receiving hole 9. The inner wall of the receiving hole 9 is slidably connected to the limiting plate 11. The adjacent side of the multiple limiting plates 11 is fixedly connected to the distant side of the multiple sliding rods 6 to form a force transmission structure. One end of the telescopic spring 10 is fixedly connected to one side of the inner wall of the receiving hole 9, and the other end of the telescopic spring 10 is fixedly connected to the side of the limiting plate 11 away from the sliding rod 6, so that the telescopic spring 10 is in a pre-compressed state, providing continuous elastic restoring force for the sliding rod 6.

[0020] The working principle of the ceramic insulator for electronic packaging provided by this utility model is as follows: When it is necessary to install and fix the pins to achieve electronic packaging, the pins are first inserted into the pin holes 3 opened in the sealing layer 2 of the inner ring of the ceramic ring 1. The sealing layer 2 fits seamlessly with the inner ring of the ceramic ring 1 and the hole wall of the pin hole 3, which can initially ensure the sealing and insulation effect between the pins and the ceramic ring 1. Next, the operation is performed on the caps 4 at both ends of the ceramic ring 1. Since the outer ends of the ceramic ring 1 are threaded to the caps 4, the inner ring of the caps 4 has through holes 5, the inner diameter of which is larger than the inner diameter of the pin hole 3, so that the pin can pass through and be clamped and fixed in the subsequent action. At this time, the multiple sliding rods 6 that are slidably connected to the inner wall of the through holes 5 of the caps 4 begin to play a role. As the pin passes through the through hole 5, the sliding rods 6 will slide on the inner wall of the through hole 5 due to the compression of the pin. During the sliding of the sliding rod 6, the clamping block 7 fixedly connected to the side near it also moves. The cross-section of the clamping block 7 is arc-shaped, and its arc curvature matches the outer periphery curvature of the pin, which can better fit the outer periphery of the pin. At the same time, the high-temperature fiber pad 8 fixedly connected to the side near the clamping block 7 has anti-slip texture on its surface, which can increase the friction between the pad and the pin during the clamping process, improve the clamping stability, and prevent the pin from sliding. When the sliding rod 6 slides, the elastic component installed in the receiving hole 9 inside the cover 4 operates synchronously. The elastic component includes a telescopic spring 10, which is set inside the receiving hole 9. The inner wall of the receiving hole 9 is slidably connected to a limiting plate 11. The adjacent side of multiple limiting plates 11 is fixedly connected to the distant side of multiple sliding rods 6. One end of the telescopic spring 10 is fixedly connected to one side of the inner wall of the receiving hole 9, and the other end is fixedly connected to the side of the limiting plate 11 away from the sliding rod 6. When the sliding rod 6 is pressed by the pin and slides towards the receiving hole 9, it will drive the limiting plate 11 to slide inside the receiving hole 9, thereby compressing the telescopic spring 10. The reverse elastic force generated by the telescopic spring 10 will be transmitted to the clamping block 7 and the high-temperature fiber pad 8 through the limiting plate 11 and the sliding rod 6, so that they are tightly attached to the outer periphery of the pin, realizing the elastic clamping and fixing of the pin. In subsequent use, it buffers the external forces such as collisions and bending of the pin, and avoids the external forces directly involving the rigid sealing section at the ceramic ring 1 and the pin hole 3.

[0021] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A ceramic insulator for electronic packaging, characterized in that, include: A ceramic ring (1) is fixedly connected to a sealing layer (2) on its inner ring. The inner ring of the sealing layer (2) is provided with a pin hole (3). Both ends of the ceramic ring (1) are threadedly connected to a cap (4). The inner ring of the cap (4) is provided with a through hole (5). The inner diameter of the through hole (5) is larger than the inner diameter of the pin hole (3). The inner wall of the cover (4) with a through hole (5) is slidably connected to a sliding rod (6). A clamping block (7) is fixedly connected to one side of each sliding rod (6). A high-temperature fiber pad (8) is fixedly connected to one side of each clamping block (7). A plurality of receiving holes (9) are opened inside the cover (4). The elastic component is installed inside the receiving hole (9).

2. The ceramic insulator for electronic packaging according to claim 1, characterized in that, The elastic component includes a telescopic spring (10), the outside of which is disposed inside the receiving hole (9), and a limit plate (11) is slidably connected to the inner wall of the receiving hole (9).

3. The ceramic insulator for electronic packaging according to claim 1, characterized in that, The sealing layer (2) is made of gold-tin alloy solder, and the sealing layer (2) is seamlessly bonded to the inner ring of the ceramic ring (1) and the hole wall of the pin hole (3).

4. A ceramic insulator for electronic packaging according to claim 1, characterized in that, The cross-section of the clamping block (7) is arc-shaped, and the curvature of the arc is adapted to the outer periphery curvature of the pin. The surface of the high-temperature fiber pad (8) is provided with anti-slip texture.

5. A ceramic insulator for electronic packaging according to claim 2, characterized in that, The adjacent sides of the plurality of limiting discs (11) are fixedly connected to the distant sides of the plurality of sliding rods (6).

6. A ceramic insulator for electronic packaging according to claim 2, characterized in that, One end of the telescopic spring (10) is fixedly connected to one side of the inner wall of the receiving hole (9), and the other end of the telescopic spring (10) is fixedly connected to the side of the limiting plate (11) away from the sliding rod (6).

7. A ceramic insulator for electronic packaging according to claim 1, characterized in that, The ceramic ring (1) has external threads on its outer periphery at both ends, and the inner wall of the cover (4) has internal threads. A sealing gasket is provided between the ceramic ring (1) and the cover (4).

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