A buckled inner screw cap circulator

Abstract

The present invention provides a buckled inner screw-on cover circulator, comprising a shell and a cover plate, wherein the shell is a semi-open cavity, a plurality of notches are arranged at intervals on the side wall of the shell, a groove is arranged on the inner side wall of the shell, and the two ends of the groove are connected to two adjacent notches on the shell, the outer edge of the cover plate has a clamping block extending outward and matching with the groove, a working component is accommodated in the shell, and the cover plate is pressed on top of the working component. The invention realizes the connection between the cover plate and the shell by the compression fit of the clamping block and the groove, and there is no need to consider the precise positioning of the cover plate and the shell, which simplifies the assembly operation of the assembler, improves the assembly efficiency, can realize mass production faster, and has a high pass rate, and at the same time avoids the processing of internal threads in the inner cavity of the shell, and the shell can be formed by stamping, which reduces the processing difficulty and processing cost of the shell.

Description

Technical Field

[0001] The invention belongs to the technical field of wireless communication, and in particular relates to a buckled inner rotating cover type circulator. Background Art

[0002] The shell is an essential component in existing circulators and isolators, and it undertakes the functions of mechanical support, packaging, magnetic conductivity and electrical conductivity. A good packaging or assembly method can achieve a smaller external magnetic resistance, so that the circulator or isolator can work normally with a smaller permanent magnet.

[0003] The existing circulator assembly generally adopts a spiral cover structure, and the shell and the cover plate are assembled by thread locking. The shell is machined, and the inner edge of the shell and the outer edge of the cover plate need to be processed with threads. However, the shell with internal threads is difficult to process and has high processing costs. In addition, considering the thread requirements, the inner diameter can only be reduced, which will relatively affect the size of the gyromagnetic sheet and the magnetic field distribution, thereby causing product performance deviations. In addition, when the shell and the cover plate are assembled by thread locking, the cover plate needs to be precisely positioned when it is matched with the shell, otherwise the cover plate and the shell thread will not fit well, and it cannot be screwed in or cause the thread to slip, affecting product performance. Summary of the invention

[0004] The purpose of the present invention is to overcome the problems of the existing spiral cover structure, such as high processing cost, easy sliding and compression of the cover plate, and influence on product performance.

[0005] To this end, the present invention provides a buckled inner screw-cover circulator, including a shell and a cover plate, the shell is a semi-open cavity, a plurality of notches are arranged at intervals on the side wall of the shell, a groove is arranged on the inner wall of the shell, and the two ends of the groove are connected to two adjacent notches on the shell, the outer edge of the cover plate has a block extending outward and matching with the groove, a working component is accommodated in the shell, and the cover plate is pressed on top of the working component.

[0006] Furthermore, the above-mentioned buckled inner screw-cover type circulator also includes an elastic member, which is located between the working component and the cover plate, and the cover plate and the working component clamp the elastic member.

[0007] Furthermore, the elastic member is a spring sheet, and an elastic protrusion is provided on the spring sheet.

[0008] Furthermore, the height of the groove is greater than the thickness of the block and does not exceed the sum of the maximum elastic value of the elastic member and the thickness of the block.

[0009] Furthermore, the upper surface of the working component is flush with the lower edge of the groove.

[0010] Furthermore, the working component includes a permanent magnet 1, a gyromagnetic piece 1, a central conductor, a first ferrite, a second ferrite, a gyromagnetic piece 2, a permanent magnet 2, a gyromagnetic piece 3, a gyromagnetic piece 4, and a gyromagnetic piece 5 stacked in sequence from bottom to top in the shell, and the cover plate is pressed on top of the gyromagnetic piece 5.

[0011] Furthermore, the outer edge of the central conductor has a plurality of terminals extending outward, the terminals correspond to the positions of the notches of the shell, and the terminals are fixedly connected to the shell by bolts.

[0012] Furthermore, the shell is integrally formed by stamping.

[0013] Furthermore, the shell is made of steel, aluminum or copper.

[0014] Furthermore, the cover plate is made of steel, aluminum or copper.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) The buckled inner screw-on cover circulator provided by the present invention realizes the connection between the cover plate and the shell by the cooperation of the clamping block and the groove, and there is no need to consider the precise positioning of the cover plate and the shell, which simplifies the assembly operation of the assembler, improves the assembly efficiency, and reduces the production cost.

[0017] (2) The buckled internal screw-on cover circulator provided by the present invention avoids the need to process internal threads in the inner cavity of the shell. The shell can be formed by stamping, which reduces the difficulty and cost of processing the shell and enables faster mass production. At the same time, the risk of thread slippage caused by the existing cover plate and shell thread locking can be avoided by the clamping fit of the clamping block in the groove.

[0018] The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the buckled inner-screw cover circulator of the present invention;

[0020] Figure 2 It is an exploded view of the buckled inner screw-on cover circulator of the present invention.

[0021] Explanation of the accompanying drawings: 1. Shell; 2. Notch; 3. Cover plate; 4. Groove; 5. Elastic member; 6. Working assembly; 7. Block; 8. Permanent magnet one; 9. Gyromagnetic piece one; 10. Center conductor; 11. First ferrite; 12. Second ferrite; 13. Gyromagnetic piece two; 14. Permanent magnet two; 15. Gyromagnetic piece three; 16. Gyromagnetic piece four; 17. Gyromagnetic piece five; 18. Terminal. DETAILED DESCRIPTION

[0022] 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.

[0023] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0025] like Figure 1 and Figure 2As shown, this embodiment provides a buckled inner screw cover type circulator, including a shell 1 and a cover plate 3, the shell 1 is a semi-open cavity, a plurality of notches 2 are arranged on the side wall of the shell 1 along its circumferential interval, a groove 4 is arranged on the inner side wall of the shell 1, and the two ends of the groove 4 are connected to two adjacent notches 2 on the shell 1, the outer edge of the cover plate 3 has a block 7 extending outward and matching with the groove 4, a working component 6 is accommodated in the shell 1, and the cover plate 3 is pressed on the top of the working component 6. Among them, the material of the shell 1 can be steel, aluminum or copper, and the material of the cover plate 3 is steel, aluminum or copper. When assembling the buckled inner screw-on cover circulator, first place the working component 6 in the cavity of the shell 1 for fixing, then align the block 7 of the cover plate 3 with the notch 2 on the shell 1 and press down the working component 6 until the block 7 and the groove 4 on the inner wall of the shell 1 are at the same level, then rotate the cover plate 3 horizontally, rotate the block 7 into the groove 4, and press and fit with the groove 4, and because the two ends of the groove 4 are connected to the two adjacent notches 2 on the shell 1, the cover plate 3 can be rotated clockwise and pressed, and can also be rotated counterclockwise and pressed, and the assembly operation is more convenient. In this embodiment, the shell 1 and the cover plate 3 are assembled through the matching connection of the groove 4 and the block 7, and the structural design of the groove 4 on the shell 1 not only maintains the original structural design of the outer surface of the shell 1, but also does not need to consider the thread, and can enlarge the size of the shell 1, so that the size of the working component 6 in the shell 1 can be appropriately increased accordingly, which is conducive to improving the magnetic field distribution, thereby improving the product performance, and the shell 1 can be processed by stamping, which greatly reduces the processing difficulty and processing cost of the shell 1.

[0026] In a detailed implementation, in order to ensure that the cover plate 3 can play a pressing role on the working component 6 in the shell when the block 7 of the cover plate 3 cooperates with the groove 4 of the shell 1, the upper surface of the working component 6 is flush with the lower edge of the groove 4, so that when the cover plate 3 is pressed down to just press the working component 6, its block 7 can be pressed by rotating into the groove 4. Specifically, the working component 6 includes a permanent magnet 1 8, a gyromagnetic sheet 1 9, a central conductor 10, a first ferrite 11, a second ferrite 12, a gyromagnetic sheet 2 13, a permanent magnet 2 14, a gyromagnetic sheet 3 15, a gyromagnetic sheet 4 16, and a gyromagnetic sheet 5 17 stacked in sequence from bottom to top in the shell 1, and the cover plate 3 covers the gyromagnetic sheet 5 17; the outer edge of the central conductor 10 has a plurality of terminals 18 extending outward, the terminals 18 correspond to the position of the notch 2 of the shell 1, and the terminals 18 just extend out of the notch 2 of the shell 1, and are fixedly connected to the shell 1 by bolts. Optimally, in order to allow the terminal 18 of the center conductor 10 to just extend out of the notch 2 of the shell 1, a spring clip can be arranged between the working component 6 and the bottom of the shell 1 to fill the bottom of the shell 1. At the same time, the spring clip can also play a buffering role for the assembly of the working component 6 in the shell 1.

[0027] An optimized implementation method, in order to better ensure the clamping effect between the block 7 of the cover plate 3 and the groove 4 of the shell 1, the above-mentioned buckled inner rotary cover circulator also includes an elastic member 5, which is located between the working component 6 and the cover plate 3, and the cover plate 3 and the working component 6 clamp the elastic member 5. When the cover plate 3 presses down the working component 6, the elastic member 5 plays a buffering role on the downward pressure of the cover plate 3. After the block 7 of the cover plate 3 rotates into the groove 4, the elastic force of the elastic member 5 on the cover plate 3 is upward, so that the upper surface of the block 7 is pressed against the upper surface of the groove 4, thereby achieving a tight fit between the block 7 and the groove 4. Furthermore, the height of the groove 4 can be designed to be greater than the thickness of the block 7, so that the block 7 can be smoothly rotated into the groove 4 without the need for precise alignment of the block 7 and the groove 4, which is convenient for operation. At the same time, it is also necessary to ensure that the height of the groove 4 does not exceed the sum of the maximum elastic value of the elastic member 5 and the thickness of the block 7. If the height of the groove 4 differs too much from the thickness of the block 7 and exceeds the maximum elastic range of the elastic member 5, the locking effect of the block 7 and the groove 4 cannot be achieved. For a specific implementation of the elastic member 5, the elastic member 5 can be a spring sheet, and an elastic protrusion is provided on the spring sheet, which plays a buffering role in the downward pressure of the cover plate 3 through the elastic protrusion.

[0028] To sum up, the buckled inner screw-on cover circulator provided by the present invention realizes the connection between the cover plate and the shell through the compression fit of the clamping block and the groove. There is no need to consider the precise positioning of the cover plate and the shell, which simplifies the assembly operation of the assemblers and improves the assembly efficiency. It can realize mass production faster with a high pass rate. At the same time, it avoids the processing of internal threads in the inner cavity of the shell. The shell can be stamped, which reduces the processing difficulty and cost of the shell.

[0029] The above examples are merely illustrative of the present invention and do not constitute a limitation on the protection scope of the present invention. All designs that are the same or similar to the present invention fall within the protection scope of the present invention.

Claims

1. A buckled inner cover circulator, characterized in that: The invention comprises a shell and a cover plate, wherein the shell is a semi-open cavity, a plurality of notches are arranged at intervals on the side wall of the shell, a groove is arranged on the inner side wall of the shell, and the two ends of the groove are connected to two adjacent notches on the shell, the outer edge of the cover plate has a block extending outward and matching with the groove, a working component is accommodated in the shell, and the cover plate covers the top of the working component; a spring sheet is arranged between the working component and the bottom of the shell; It also includes an elastic member, which is located between the working component and the cover plate, and the cover plate and the working component clamp the elastic member, the height of the groove is greater than the thickness of the block and does not exceed the sum of the maximum elastic value of the elastic member and the thickness of the block, and after the block of the cover plate rotates into the groove, the elastic force of the elastic member on the cover plate is applied upward so that the upper surface of the block is pressed against the upper surface of the groove.

2. A buckled inner screw cap circulator as claimed in claim 1, characterized in that: The elastic member is a spring sheet, and an elastic protrusion is arranged on the spring sheet.

3. The buckled inner cover type circulator according to claim 1, characterized in that: The upper surface of the working component is flush with the lower edge of the groove.

4. The buckled inner screw cap circulator according to claim 1, characterized in that: The working assembly includes a permanent magnet 1, a gyromagnetic sheet 1, a central conductor, a first ferrite, a second ferrite, a gyromagnetic sheet 2, a permanent magnet 2, a gyromagnetic sheet 3, a gyromagnetic sheet 4, and a gyromagnetic sheet 5, which are stacked in sequence from bottom to top in the shell, and the cover plate is pressed on top of the gyromagnetic sheet 5.

5. The buckled inner cover type circulator according to claim 4, characterized in that: The outer edge of the central conductor is provided with a plurality of terminals extending outwards, the terminals correspond to the positions of the notches of the shell, and the terminals are fixedly connected to the shell by bolts.

6. The buckled inner screw cover type circulator according to claim 1, characterized in that: The shell is integrally formed by stamping.

7. The buckled inner screw cap circulator according to claim 1, characterized in that: The shell is made of steel, aluminum or copper.

8. The buckled inner screw cover type circulator according to claim 1, characterized in that: The cover plate is made of steel, aluminum or copper.

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