High-strength aluminum oxide ceramic substrate

Abstract

The high-strength aluminum oxide ceramic substrate comprises an outer frame body, one side of the outer surface of the outer frame body is provided with a through hole penetrating to the other side, the top of the through hole is provided with a mounting hole penetrating to the top, and a heat dissipation assembly is jointly mounted between the mounting hole and the through hole. A ceramic substrate body is assembled on the top of the heat dissipation assembly in an attached mode. One side of the outer surface of the outer frame body is fixedly connected with a plurality of metal strips, and the metal strips penetrate through the outer wall of the outer frame body and extend to the top. According to the utility model, through the arrangement of the mounting hole, the heat dissipation assembly, the through hole, the metal strip, the protection seat, the first concentric-square-shaped frame, the concentric-square-shaped positioning groove, the secondary sealing frame and the rubber pressing seat, not only can the ceramic substrate body be protected, but also the influence of air humidity on the ceramic substrate body can be avoided, and the use effect of the ceramic substrate body is ensured; and the heat dissipation assembly can ensure the heat dissipation effect when the ceramic substrate body is used.

Description

Technical Field

[0001] The utility model relates to the technical field of ceramic substrates, in particular to a high-strength alumina ceramic substrate. Background Art

[0002] An alumina ceramic substrate is a ceramic material made from high-purity alumina powder through processes such as molding and sintering. It has excellent thermal stability and chemical stability, and can maintain good performance in high-temperature and corrosive environments. In addition, the alumina ceramic substrate also has high mechanical strength and good insulation performance, and can effectively resist problems such as current leakage and electric leakage, so it is widely used in the fields of electronics, communication, etc.

[0003] A prior art high-strength alumina ceramic substrate with the publication number of CN218103633U includes an outer frame body and support legs installed at the bottom of the outer frame body. A reinforcing plate is provided between the two support legs at the bottom of the outer frame body. A protection plate is installed at the top of the outer frame body through a buffer member. A fixing groove is opened inside the outer frame body, and a ceramic substrate body is installed in the fixing groove; an embedding opening is opened at the bottom of the support leg.

[0004] Although this ceramic substrate has self-protection performance and increases the overall strength, its protection effect is limited. It cannot prevent the intrusion of moisture. When the air humidity in the used environment is relatively high, it will significantly affect the physical properties of the ceramic substrate, and at the same time, it will also affect its electrical properties. Therefore, improvements are proposed. Content of the Utility Model

[0005] The utility model is a high-strength alumina ceramic substrate proposed to solve the disadvantages existing in the prior art.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: a high-strength alumina ceramic substrate, including an outer frame body. A through hole penetrating from one side of the outer surface of the outer frame body to the other side is opened. An installation hole penetrating to the top is opened at the top of the through hole. A heat dissipation component is jointly installed between the installation hole and the through hole. The top of the heat dissipation component is fitted and assembled with a ceramic substrate body;

[0007] A plurality of metal strips are fixedly connected to one side of the outer surface of the outer frame body, and the metal strips penetrate through the outer wall of the outer frame body and extend to the top. A first loop-shaped frame is fixedly connected to the top of the outer frame body;

[0008] A loop-shaped positioning groove is opened at the top of the outer frame body where a protection seat is fixedly installed, and the loop-shaped positioning groove matches the first loop-shaped frame and is hermetically connected to it;

[0009] A secondary sealing frame is fixedly connected to the inner top wall of the protection seat, and the secondary sealing frame is in sealing contact with the outer frame body;

[0010] The inner top wall of the protective seat is fixedly connected with a rubber pressing seat, and the rubber pressing seat is located inside the secondary sealing frame and abuts against the ceramic substrate body.

[0011] Furthermore, the heat dissipation component includes a fin radiator, and the fin radiator is fixedly installed on the inner top wall of the through hole. The top of the fin radiator is fixedly connected with a heat conducting sheet, and the heat conducting sheet is fixedly connected with the inner wall of the mounting hole. The top of the heat conducting sheet is fixedly connected with a heat conducting pad, and the heat conducting pad abuts against the ceramic substrate body, which is beneficial to the dissipation of the heat generated by the ceramic substrate body.

[0012] Furthermore, the top of the first loop-shaped frame is fixedly connected with a first loop-shaped sealing pad, and the first loop-shaped sealing pad is in sealing abutment with the loop-shaped positioning groove, having a preliminary sealing effect and ensuring the overall sealing performance.

[0013] Furthermore, the secondary sealing frame includes a second loop-shaped frame, and the second loop-shaped frame is fixedly connected with the protective seat. The bottom of the second loop-shaped frame is fixedly connected with a second loop-shaped sealing pad, and the second loop-shaped sealing pad is in sealing abutment with the outer frame body, having a secondary sealing effect and further improving the overall sealing performance.

[0014] Furthermore, the rubber pressing seat includes a pressing frame, and the pressing frame is fixedly connected with the protective seat. Two rubber strips are symmetrically and fixedly connected to the bottom of the pressing frame, and the rubber strips abut against the ceramic substrate body, which can squeeze and fix the ceramic substrate body.

[0015] Furthermore, through grooves are formed on both sides of the outer surface of the pressing frame. The arrangement of the through grooves can avoid affecting the connection wires between the metal strip and the alumina ceramic substrate.

[0016] Furthermore, four screws are commonly and threadedly connected between the outer frame body and the protective seat. The arrangement of the screws is beneficial to the fixed connection between the protective seat and the outer frame body.

[0017] The beneficial effects of the present utility model:

[0018] When the present utility model is in use, for this high-strength alumina ceramic substrate, through the arranged mounting holes, heat dissipation components, through holes, metal strips, protective seats, first loop-shaped frames, loop-shaped positioning grooves, secondary sealing frames and rubber pressing seats, it can not only protect the ceramic substrate body, but also eliminate the influence of air humidity on the ceramic substrate body, ensuring its use effect, and the heat dissipation component can ensure the heat dissipation effect when the ceramic substrate body is in use. Description of the Drawings

[0019] To more clearly illustrate the technical solution of the present utility model, the following will briefly introduce the drawings required for use in the description of the specific embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 : Perspective view of the present utility model;

[0021] Figure 2 : Partial cross-sectional view of the present utility model;

[0022] Figure 3 : Of the present utility model Figure 2 Enlarged view of part A in.

[0023] The reference numerals are as follows:

[0024] 1. Outer frame body; 2. Screw; 3. Protective seat; 4. Metal strip; 5. Through hole; 6. First loop frame; 7. First loop gasket; 8. Loop positioning groove; 9. Ceramic substrate body; 10. Fin heat sink; 11. Heat conducting sheet; 12. Heat conducting pad; 13. Second loop frame; 14. Second loop gasket; 15. Pressing frame; 16. Through slot; 17. Rubber strip; 18. Mounting hole. Specific embodiments

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0026] As Figures 1 to 3 shown, it relates to a high-strength alumina ceramic substrate, including an outer frame body 1. A through hole 5 penetrating from one side of the outer surface of the outer frame body 1 to the other side is provided. A mounting hole 18 penetrating to the top is provided at the top of the through hole 5. A heat dissipation component is jointly installed between the mounting hole 18 and the through hole 5. A ceramic substrate body 9 is fitted and attached to the top of the heat dissipation component. The heat dissipation component includes a fin heat sink 10, and the fin heat sink 10 is fixedly installed on the inner top wall of the through hole 5. A heat conducting sheet 11 is fixedly connected to the top of the fin heat sink 10, and the heat conducting sheet 11 is fixedly connected to the inner wall of the mounting hole 18. A heat conducting pad 12 is fixedly connected to the top of the heat conducting sheet 11, and the heat conducting pad 12 abuts against the ceramic substrate body 9. The heat generated by the ceramic substrate body 9 will be conducted to the fin heat sink 10 through the heat conducting pad 12 and the heat conducting sheet 11, and then dissipated into the air.

[0027] On one side of the outer surface of the outer housing 1, a plurality of metal strips 4 are fixedly connected. The arrangement of the metal strips 4 is beneficial for connecting with external wires, eliminating the need to drill holes on the surface of the protective seat 3 or the outer housing 1, ensuring the sealing performance between the protective seat 3 and the outer housing 1. Moreover, the metal strips 4 penetrate through the outer wall of the outer housing 1 and extend to the top. A first rectangular frame 6 is fixedly connected to the top of the outer housing 1. A rectangular positioning groove 8 is provided in the top of the outer housing 1 where the protective seat 3 is fixedly installed, and the rectangular positioning groove 8 matches and is hermetically connected to the first rectangular frame 6. A first rectangular sealing gasket 7 is fixedly connected to the top of the first rectangular frame 6, and the first rectangular sealing gasket 7 is in sealing contact with the rectangular positioning groove 8. The cooperation between the first rectangular sealing gasket 7 and the rectangular positioning groove 8 can initially prevent moisture from entering the protective seat 3.

[0028] A secondary sealing frame is fixedly connected to the inner top wall of the protective seat 3, and the secondary sealing frame is in sealing contact with the outer housing 1. The secondary sealing frame includes a second rectangular frame 13, and the second rectangular frame 13 is fixedly connected to the protective seat 3. A second rectangular sealing gasket 14 is fixedly connected to the bottom of the second rectangular frame 13, and the second rectangular sealing gasket 14 is in sealing contact with the outer housing 1. The second rectangular frame 13 and the second rectangular sealing gasket 14 further improve the overall sealing performance.

[0029] A rubber pressing seat is fixedly connected to the inner top wall of the protective seat 3, and the rubber pressing seat is located inside the secondary sealing frame and abuts against the ceramic substrate body 9. The rubber pressing seat includes a pressing frame 15, and the pressing frame 15 is fixedly connected to the protective seat 3. Two rubber strips 17 are symmetrically and fixedly connected to the bottom of the pressing frame 15, and the rubber strips 17 abut against the ceramic substrate body 9. Through grooves 16 are formed on both sides of the outer surface of the pressing frame 15. After the protective seat 3 is pressed, the ceramic substrate body 9 can be tightly pressed and fixed by the pressing frame 15 and the rubber strips 17.

[0030] Four screws 2 are commonly threadedly connected between the outer housing 1 and the protective seat 3. The arrangement of the screws 2 is beneficial for the installation and disassembly of the outer housing 1 and the protective seat 3.

[0031] Working principle: After placing the ceramic substrate body 9 on the heat-conducting pad 12, align the rectangular positioning groove 8 with the first rectangular frame 6 for installation until the first rectangular sealing gasket 7 is in sealing contact with the rectangular positioning groove 8, the second rectangular sealing gasket 14 is in sealing contact with the outer housing 1, and the rubber strips 17 are in contact with the ceramic substrate body 9, and then screw on the screws 2.

[0032] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to only the specific embodiments. Obviously, many modifications and variations can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A high-strength alumina ceramic substrate, comprising an outer frame (1), characterized in that: A through hole (5) is provided on one side of the outer surface of the outer frame (1) and extends to the other side; a mounting hole (18) is provided on the top of the through hole (5) and extends to the top; a heat dissipation component is installed between the mounting hole (18) and the through hole (5); a ceramic substrate body (9) is fitted on the top of the heat dissipation component; A plurality of metal strips (4) are fixedly connected to one side of the outer surface of the outer frame (1), and the metal strips (4) penetrate the outer wall of the outer frame (1) and extend to the top, and a first return frame (6) is fixedly connected to the top of the outer frame (1); The top of the outer frame (1) is fixedly mounted with a protective seat (3) having a return-shaped positioning groove (8), and the return-shaped positioning groove (8) matches the first return-shaped frame (6) and is sealed therewith; The inner top wall of the protection seat (3) is fixedly connected with a secondary sealing frame, and the secondary sealing frame is in sealing contact with the outer frame (1); The inner top wall of the protection seat (3) is fixedly connected to a rubber pressure seat, and the rubber pressure seat is located on the inner side of the secondary sealing frame and abuts against the ceramic substrate body (9).

2. The high-strength alumina ceramic substrate according to claim 1, characterized in that: The heat dissipation component comprises a fin heat sink (10), and the fin heat sink (10) is fixedly mounted on the inner top wall of the through hole (5), a heat conducting sheet (11) is fixedly connected to the top of the fin heat sink (10), and the heat conducting sheet (11) is fixedly connected to the inner wall of the mounting hole (18), a heat conducting pad (12) is fixedly connected to the top of the heat conducting sheet (11), and the heat conducting pad (12) abuts against the ceramic substrate body (9).

3. The high-strength alumina ceramic substrate according to claim 1, characterized in that: A first return-shaped sealing pad (7) is fixedly connected to the top of the first return-shaped frame (6), and the first return-shaped sealing pad (7) is in sealing contact with the return-shaped positioning groove (8).

4. The high-strength alumina ceramic substrate according to claim 1, characterized in that: The secondary sealing frame comprises a second return frame (13), and the second return frame (13) is fixedly connected to the protective seat (3); the bottom of the second return frame (13) is fixedly connected to a second return sealing pad (14), and the second return sealing pad (14) is densely abutted against the outer frame (1).

5. The high-strength alumina ceramic substrate according to claim 1, characterized in that: The rubber pressure seat comprises a pressure frame (15), and the pressure frame (15) is fixedly connected to the protective seat (3). Two rubber strips (17) are symmetrically fixedly connected to the bottom of the pressure frame (15), and the rubber strips (17) are in contact with the ceramic substrate body (9).

6. The high-strength alumina ceramic substrate according to claim 5, characterized in that: Through grooves (16) are formed on both sides of the outer surface of the pressing frame (15).

7. The high-strength alumina ceramic substrate according to claim 1, characterized in that: Four screws (2) are threadedly connected between the outer frame (1) and the protective seat (3).

Images