Cylindrical microwave circulator shell
By using a threadless plug and groove design, the problems of complex assembly and unstable fixing of microwave circulator housing are solved, achieving simple and reliable component fixing and stable electrical performance, and reducing processing costs.
Patent Information
- Application Number
- CN202520535894.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-25
AI Technical Summary
The existing threaded connection of microwave circulator housing is time-consuming and labor-intensive, requires high machining accuracy, and is prone to poor electrical performance and loose component fixation after the cavity is reduced in size.
The design employs a threadless connection, utilizing a plug and sliding groove structure. The plug is inserted into the sliding groove and engages with it. Combined with the design of spring pieces and ring pieces, this achieves a firm fixation of components and prevents the side plate from expanding.
It achieves simple assembly, avoids the problem of stripped threads, ensures that components are firmly fixed, maintains stable electrical performance, and reduces processing costs.
Smart Images
Figure CN223941992U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of microwave device technology, and in particular to a cylindrical microwave circulator housing. Background Technology
[0002] A microwave circulator is a three-port non-reciprocal device that utilizes the anisotropic properties of a magnetically biased ferrite material to achieve unidirectional circular transmission of electromagnetic waves (e.g., 1→2→3→1). Its core functions include signal isolation, protection of sensitive components (such as power amplifiers) from reflected signal interference, and support for shared antennas for transmitting and receiving signals. The circulation direction can be dynamically adjusted by changing the direction of the external bias magnetic field. In existing 5G communication equipment, the outer diameter of the microwave circulator housing is typically around 7 mm, or even smaller. Microwave circulators usually employ a threaded connection assembly, with external threads on the cavity and internal threads on the cover plate. The threads are used to fix components, but thread machining is time-consuming, labor-intensive, and requires high precision, resulting in high overall costs. When the circulator cavity size is reduced and the sidewalls thinner, problems such as cavity bulging and thread stripping can easily occur, leading to poor electrical performance and insecure component fixation. Therefore, improvements are needed. Utility Model Content
[0003] Therefore, it is necessary to provide a cylindrical microwave circulator housing to address the above-mentioned problems.
[0004] A cylindrical microwave circulator housing includes a bottom shell, side plates, and a top plate. Three side plates are installed on the edges of the bottom shell and extend above it. The three side plates and the bottom shell enclose a cavity for mounting components. There is a gap between adjacent side plates. The bottom shell has a clearance groove corresponding to the gap. The top plate is installed on the side plates. The outer surface of the side plates has a sliding groove. The end of the sliding groove has a locking groove. The edge of the top plate has an insertion block corresponding to the sliding groove. The end of the insertion block has a hook that engages with the locking groove.
[0005] Preferably, the side of the insert block facing away from the hook is provided with a spring piece, which abuts against the inner wall of the slide groove.
[0006] Preferably, the front end of the slide is provided with a reinforcing groove, the reinforcing groove is connected to the slide, and the edge of the top plate is provided with a ring piece corresponding to the reinforcing groove.
[0007] Preferably, the clearance groove is arc-shaped and has rounded corners.
[0008] Preferably, the side plate has heat dissipation holes.
[0009] The advantages of this utility model are: the assembly is extremely simple, no threaded connection is required, avoiding stripping, and the use of insert blocks to insert into the sliding groove can prevent the side plates from expanding outward, thus acting as a clamp. The entire housing will not deform too much due to the installation and insertion of components, and it is extremely sturdy. Attached Figure Description
[0010] Figure 1 A perspective view of a cylindrical microwave circulator housing according to one embodiment;
[0011] Figure 2 for Figure 1 Enlarged diagram of section A in the middle;
[0012] Figure 3 This is a schematic diagram of the assembly of the bottom shell and side plates. Detailed Implementation
[0013] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0014] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0015] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0016] like Figures 1-3As shown, a cylindrical microwave circulator housing includes a bottom shell 1, side plates 2, and a top plate 3. Three side plates 2 are mounted on the edges of the bottom shell 1 and extend above it. The three side plates 2 and the bottom shell 1 enclose a cavity for mounting components. A gap exists between adjacent side plates 2. The bottom shell 1 has a clearance groove 11 corresponding to the gap. The top plate 3 is mounted on the side plates 2. A sliding groove 21 is provided on the outer surface of the side plates 2. A locking groove 22 is provided at the end of the sliding groove 21. An insertion block 31 is provided on the edge of the top plate 3 corresponding to the sliding groove 21. A hook 32 is provided at the end of the insertion block 31, and the hook 32 engages with the locking groove 22. Specifically, in this embodiment, the bottom shell 1, side plates 2, and top plate 3 are made of metal, providing high strength and protecting the components (not shown in the figure) installed within them from external physical impacts. Three side plates 2 are provided on the bottom shell 1, with gaps between them to allow the pins of components installed in the cavity to extend through the gaps and pass through the clearance grooves 11 for soldering to the substrate to complete the electrical connection. To achieve better assembly results, a detachable top plate 3 is provided on the top of the side plates 2 to clamp the three side plates 2. The edge of the top plate 3 has inserts 31. During assembly, the operator can insert the inserts 31 one by one into the corresponding slots 21. It can be understood that the width of the slots 21 is greater than the overall width of the inserts 31 and the hooks 32, so that the inserts 31 can carry the hooks 32 into the whole insertion and insert the hooks 32 into the bottom of the slots 21. At this time, the operator can then select the top plate 3 to screw the hooks 32 into the slots 22 to complete the assembly. The entire assembly process is extremely simple, requiring no threaded connections to avoid stripping. Furthermore, by inserting the insert block 31 into the slide groove, the side plate 2 can be prevented from expanding outward, thus acting as a clamp. The entire housing will not deform too much due to the installation and insertion of components, and it is extremely secure.
[0017] like Figure 2 As shown, the side of the insert block 31 facing away from the hook 32 is provided with a spring piece 33, which abuts against the inner wall of the slide groove 21. Specifically, the elastic force provided by the cooperation between the spring piece 33 and the inner wall of the slide groove 21 is used to firmly push the hook 32 into the slot 22, preventing the hook 32 from coming out of the slot 22 and causing the top plate 3 and the side plate 2 to become loose.
[0018] like Figures 1-3 As shown, a reinforcing groove 24 is provided at the front end of the slide groove 21, and the reinforcing groove 24 is connected to the slide groove 21. A ring piece 34 is provided on the edge of the top plate 3 corresponding to the reinforcing groove 24. Specifically, the ring piece 34 cooperates with the reinforcing groove 24 and is fitted into the reinforcing groove 24. The ring piece 34 can more firmly clamp the side plate 2, preventing the outward tension of the side plate 2 from being entirely borne by the thinner insert 31, which could easily lead to deformation of the insert 31 over time.
[0019] like Figure 1 ,3 As shown, the clearance groove 11 is arc-shaped with rounded corners to match component pins and prevent pin scratches during assembly. Additionally, an aluminum oxide layer can be sprayed onto the edge of the clearance groove 11 to prevent moisture intrusion and pin oxidation, while maintaining electromagnetic shielding effectiveness.
[0020] like Figure 1 , 3 As shown, the side plate 2 is provided with heat dissipation holes 23 to prevent the heat generated by the components from accumulating between the side plate 2 and the components during operation. The heat can be dissipated in a timely manner through the heat dissipation holes 23.
[0021] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A cylindrical microwave circulator housing, characterized in that: The device includes a bottom shell, side plates, and a top plate. The three side plates are installed on the edges of the bottom shell and extend above it. The three side plates and the bottom shell together form a cavity for mounting components. There is a gap between adjacent side plates. The bottom shell is provided with a clearance groove corresponding to the gap. The top plate is installed on the side plates. The outer surface of the side plates is provided with a sliding groove. The end of the sliding groove is provided with a locking groove. The edge of the top plate is provided with an insertion block corresponding to the sliding groove. The end of the insertion block is provided with a hook. The hook engages in the locking groove.
2. The cylindrical microwave circulator housing as described in claim 1, characterized in that: A spring sheet is provided on the side of the insert block facing away from the hook, and the spring sheet abuts against the inner wall of the slide groove.
3. The cylindrical microwave circulator housing as described in claim 1, characterized in that: The front end of the slide is provided with a reinforcing groove, which is connected to the slide. The edge of the top plate is provided with a ring plate corresponding to the reinforcing groove.
4. The cylindrical microwave circulator housing as described in claim 1, characterized in that: The clearance groove is arc-shaped and has rounded corners.
5. The cylindrical microwave circulator housing as described in claim 1, characterized in that: The side plate has heat dissipation holes.