Phase shifter
By introducing the combination of an insulating protrusion and a feed mounting structure in the cavity phase shifter, the problem of loose welding is solved, stable welding and good intermodulation performance are achieved, and production efficiency and mechanical stability of the equipment are improved.
Patent Information
- Application Number
- CN202422873468.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-11-22
AI Technical Summary
The welding of existing cavity phase shifters is complex and unstable, with high welding difficulty, which affects production efficiency and has poor intermodulation performance.
The insulating protrusion is combined with the feed mounting structure to reduce the direct contact area between the cavity and the feed mounting structure, and the insulating protrusion made of deformable material is used to firmly connect them to ensure welding stability and intermodulation performance.
Reduce welding difficulty, improve welding stability, reduce the phenomenon of cold welding, ensure good intermodulation performance of the phase shifter, and enhance the mechanical stability and durability of the structure.
Smart Images
Figure CN223363354U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of antenna manufacturing, in particular to a phase shifter. Background Art
[0002] In an antenna, a phase shifter can electronically control the direction of the antenna beam by adjusting the phase of the radio frequency signal.
[0003] Currently, cavity phase shifters are mostly welded directly to the metal cavity. However, due to the large volume and rapid heat dissipation of the cavity metal, welding is difficult and can easily lead to problems such as cold joints and loose welds. Currently, to ensure stable and secure welding of phase shifters, most use ultra-high frequency welding machines. However, this operation is complex and not conducive to production. A structure that can ensure stable and secure welding, good intermodulation performance, and reduced losses is needed to address these issues. Utility Model Content
[0004] In view of the above-mentioned defects, the purpose of the present invention is to provide a phase shifter to solve the problems of complex welding and unstable welding of current cavity phase shifters.
[0005] To achieve this purpose, the present invention adopts the following technical solutions:
[0006] A phase shifter includes a cavity, an insulating protrusion, and a feed mounting structure; the feed mounting structure is provided with a mounting groove and a positioning groove, the mounting groove is arranged adjacent to the positioning groove, and the mounting groove and the positioning groove share the same long side, the mounting groove is used for welding a limit cable, and the bottom of the positioning groove is provided with a first positioning through-hole; the insulating protrusion is provided at the bottom of the feed mounting structure, the cavity and the feed mounting structure are connected through the insulating protrusion, there is no direct contact between the bottom of the feed mounting structure and the cavity, and multiple insulating protrusions are provided, and the multiple insulating protrusions are evenly distributed around the first positioning through-hole.
[0007] Furthermore, the insulating protrusion is an insulating bump structure, the insulating bump structure is made of a deformable material, the number of the insulating protrusions is at least three, and the distribution of the insulating protrusions is non-collinear.
[0008] Preferably, the insulating protrusion is made of soft silicone.
[0009] Furthermore, there are three insulating protrusions, and the three insulating protrusions are located at three vertices of an equilateral triangle centered on the first positioning through hole.
[0010] Furthermore, the number of the first positioning through holes is two; and one insulating protrusion is shared between the two first positioning through holes.
[0011] Preferably, the length of the installation groove is smaller than the length of the positioning groove, and the outer areas at both ends of the installation groove are wiring avoidance areas.
[0012] Furthermore, the cavity is provided with a second positioning hole corresponding to the first positioning through hole, and the mounting piece passes through the first positioning through hole and the second positioning hole to fix the feeding mounting structure on the cavity; the cavity is provided with a connecting hole, and the cable can be connected to the components in the cavity through the connecting hole.
[0013] Furthermore, the first positioning through hole is provided with an arc edge corresponding to the mounting piece.
[0014] Preferably, the diameter of the connecting hole is larger than the outer diameter of the cable, the connecting hole is located directly below the wiring avoidance area, the midpoint of the connecting hole is located on the extension line of the central axis of the installation slot, and the cable is bent at ninety degrees to enter the connecting hole.
[0015] Preferably, the mounting groove is a semi-open groove, the width of the mounting groove is larger than the outer diameter of the cable to be welded, and the depth of the mounting groove is larger than the radius of the cable and smaller than the outer diameter of the cable.
[0016] The technical solution provided by the utility model may have the following beneficial effects:
[0017] 1. An insulating protrusion is provided at the bottom of the feed installation structure. The feed installation structure is connected to the cavity through the insulating protrusion, which reduces the direct contact area between the feed installation structure and the cavity. The welding of the cable is not affected by the cavity, which reduces the welding difficulty and solves the problem of cold welding.
[0018] 2. The insulating protrusion can be deformed to ensure that the feed installation structure is stably fixed on the phase shifter cavity, and the feed installation structure is insulated from the cavity, ensuring that the phase shifter has good intermodulation performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a structural diagram of an embodiment of the utility model.
[0020] Figure 2 It is a schematic diagram of the feed installation structure of an embodiment of the utility model.
[0021] Figure 3 It is a bottom schematic diagram of a feed installation structure of an embodiment of the present utility model.
[0022] Figure 4 It is a schematic diagram of the cavity structure of an embodiment of the present utility model.
[0023] Among them: insulating protrusion 1, feed installation structure 2, installation groove 21, positioning groove 22, first positioning through hole 23, wiring avoidance area 24, cable 3, cavity 4, second positioning hole 41, connection hole 42, installation part 5. DETAILED DESCRIPTION
[0024] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.
[0025] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more such features, and are used to distinguish between the described features, without distinction of order or importance.
[0026] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0027] Below is the accompanying drawings Figures 1 to 4 The technical solution of the utility model is further illustrated through specific implementation methods.
[0028] A phase shifter includes a cavity 4, an insulating protrusion 1, and a feed mounting structure 2; the feed mounting structure 2 is provided with a mounting groove 21 and a positioning groove 22, the mounting groove 21 is arranged adjacent to the positioning groove 22, and the mounting groove 21 and the positioning groove 22 share the same long side, the mounting groove 21 is used for welding a limit cable 3, and the bottom of the positioning groove 22 is provided with a first positioning through-hole 23; the insulating protrusion 1 is provided at the bottom of the feed mounting structure 2, the cavity 4 and the feed mounting structure 2 are connected through the insulating protrusion 1, and there is no direct contact between the bottom of the feed mounting structure 2 and the cavity 4, and multiple insulating protrusions 1 are provided, and the multiple insulating protrusions 1 are evenly distributed around the first positioning through-hole 23.
[0029] Specifically, traditional cavity phase shifters are often welded directly to the metal cavity. However, due to the large volume and rapid heat dissipation of the cavity metal, welding is difficult and can easily lead to problems such as cold joints and loose welds. Currently, to ensure stable and secure welding of phase shifters, most use ultra-high frequency welding machines. However, this is complex and inconvenient to manufacture. A structure that can achieve stable and secure welding, ensure good intermodulation performance, and reduce losses is needed to address these issues.
[0030] To this end, the present technical solution proposes a phase shifter, comprising a cavity 4, an insulating protrusion 1, and a feed mounting structure 2. A plurality of insulating protrusions 1 are provided at the bottom of the feed mounting structure 2. The feed mounting structure 2 is connected to the cavity 4 through the insulating protrusions 1, thereby reducing the direct contact area between the feed mounting structure 2 and the cavity 4. The welding of the cable 3 is not affected by the cavity 4, thereby reducing the welding difficulty and solving the problem of cold welding. In addition, the phase shifter has good intermodulation performance and eliminates the intermodulation risks caused by unnecessary metal contact.
[0031] To further illustrate, the plurality of insulating protrusions 1 are evenly distributed around the first positioning through hole 23 , ensuring that the feed mounting structure 2 can be stably fixed on the cavity 4 .
[0032] In some embodiments, the insulating protrusion 1 is an insulating bump structure, the insulating bump structure is made of a deformable material, the number of the insulating protrusions 1 is at least three, and the distribution of the insulating protrusions 1 is non-collinear.
[0033] Specifically, the deformable material can be rubber or silicone. During the crimping process between the feed mounting structure 2 and the cavity, the insulating protrusion 1 of the deformable material will deform, reducing the gap between the cavity 4 and the feed mounting structure 2, thereby reducing the leakage of the radiation signal.
[0034] Preferably, the number of the insulating protrusions 1 is at least three, and the three non-collinear points can form a stable plane, which helps to disperse and withstand stress from different directions, reduce local stress concentration, thereby improving the overall stability and bearing capacity of the structure, and reducing the concentrated force borne by a single insulating protrusion 1, thereby reducing the risk of damage caused by local overload.
[0035] The three insulating protrusions 1 can provide sufficient structural efficiency without adding additional insulating protrusions 1, thereby reducing material usage and improving material utilization efficiency while ensuring structural strength.
[0036] Furthermore, the insulating protrusion 1 is made of soft silicone.
[0037] Specifically, the main component of silica gel is silicon dioxide, which has a unique chemical structure, can effectively limit the current, ensure the safety and stability of power transmission, and has good flexibility and elasticity, which is conducive to extrusion deformation during the crimping process, and better fix the feed mounting structure 2 on the cavity 4.
[0038] Preferably, three insulating protrusions 1 are provided, and the three insulating protrusions 1 are located at three vertices of an equilateral triangle centered on the first positioning through hole 23 .
[0039] Specifically, the three insulating protrusions 1 are located at the three vertices of an equilateral triangle with the first positioning through hole 23 as the center. The arrangement of the equilateral triangle has good symmetry, so that the mechanical properties of the feeding mounting structure 2 in all directions are similar, which helps to balance the force and reduce local stress concentration, thereby improving the durability of the feeding mounting structure 2; and this arrangement can maximize the use of space and provide sufficient spacing for the first positioning through hole 23.
[0040] like Figure 3 As shown, there are two first positioning through holes 23 ; and one insulating protrusion 1 is shared between the two first positioning through holes 23 .
[0041] Specifically, the number of the first positioning through holes 23 is at least two, which can provide higher positioning accuracy, ensure that the feeding installation structure 2 is stably fixed on the cavity 4, and reduce deviation or instability that may be caused by a single positioning point.
[0042] Preferably, the two first positioning through holes 23 share the insulating protrusion 1 in the middle, which is equivalent to the corresponding number of the insulating protrusions 1 being seven. The insulating protrusion 1 in the middle of the two first positioning through holes 23 is a common triangular stress point, ensuring that both of the first positioning through holes 23 have a stable stress structure, ensuring that they can be uniformly stressed, and improving the stability of the feeding mounting structure 2 fixed on the cavity 4, thereby reducing the use of the insulating protrusion 1 while ensuring structural strength and improving utilization.
[0043] Preferably, if Figure 2 As shown, the length of the installation groove 21 is smaller than the length of the positioning groove 22 , and the outer areas at both ends of the installation groove 21 are wiring avoidance areas 24 .
[0044] Specifically, the outer areas at both ends of the mounting groove 21 are wiring avoidance areas 24, which ensure that the feed mounting structure 2 is located at the position where the cable 3 needs to be connected to the cavity 4, and prevent the mounting groove 21 from affecting the cable 3 from accessing the interior of the cavity 4. The length of the mounting groove 21 is less than the length of the positioning groove 22. When the end of the mounting groove 21 is not on the same plane as the end of the positioning groove 22, the junction between the end of the mounting groove 21 and the positioning groove 22 is an arc, that is, the wiring avoidance area 24 has an arc angle, which is used to cooperate with the round edge of the cable 3, provide certain support protection and limiting effect for the cable 3, reduce line damage caused by vibration or mechanical shock, which helps to improve the mechanical stability and durability of the phase shifter.
[0045] like Figure 4 As shown, the cavity 4 is provided with a second positioning hole 41 corresponding to the first positioning through hole 23, and the mounting member 5 passes through the first positioning through hole 23 and the second positioning hole 41 to fix the feeding mounting structure 2 on the cavity 4; the cavity 4 is provided with a connecting hole 42, and the cable 3 can be connected to the components in the cavity 4 through the connecting hole 42.
[0046] Specifically, the cavity 4 is provided with a second positioning hole 41 corresponding to the first positioning hole 23. The mounting member 5 passes through the first positioning hole 23 and the second positioning hole 41, squeezing the insulating protrusion 1, increasing the contact area between the insulating protrusion 1 and the surface of the cavity 4, ensuring that the feed mounting structure 2 can be stably fixed to the cavity 4. The cavity 4 is provided with a connection hole 42, through which the cable 3 can be connected to the components within the cavity 4, ensuring the durability of the phase shifter. In a specific embodiment, the mounting member 5 is a metal screw.
[0047] Preferably, the first positioning through hole 23 is provided with an arc edge corresponding to the mounting member 5 .
[0048] Specifically, the first positioning through hole 23 is provided with an arc edge corresponding to the mounting member 5, so that the mounting member 5 can quickly fix the feed mounting structure 2 on the cavity 4 with the first positioning through hole 23 and the second positioning hole 23, and subsequently quickly separate the feed mounting structure 2 from the cavity 4, which is simple and fast, conducive to early installation and fixation, and also conducive to later maintenance and replacement.
[0049] Preferably, the diameter of the connecting hole 42 is larger than the outer diameter of the cable 3, the connecting hole 42 is located directly below the wiring avoidance area 24, the midpoint of the connecting hole 42 is located on the extension line of the central axis of the mounting groove 21, and the cable 3 is bent at ninety degrees to enter the connecting hole 42.
[0050] Specifically, the diameter of the connecting hole 42 is larger than the outer diameter of the cable 3. The connecting hole 42 is located directly below the wiring avoidance area 24. The midpoint of the connecting hole 42 is located on the extension line of the central axis of the installation groove 21. The cable 3 is bent at ninety degrees and enters the connecting hole 42. This is beneficial for the cable 3 to be welded to the installation groove 21 and then bend into the cavity 4 through the connecting hole 42 located directly below the wiring avoidance area 24, shortening the distance between the welding point and the bending connection of the cable 3, thereby reducing the use of the cable 3; without damaging the cable 3, it facilitates the connection between the cable 3 and the cavity 4, and also facilitates the design of the position of the connecting hole 42 of the cavity 4.
[0051] Preferably, the mounting groove 21 is a semi-open groove, the width of the mounting groove 21 is larger than the outer diameter of the cable 3 to be welded, the depth of the mounting groove 21 is larger than the radius of the cable 3 and smaller than the outer diameter of the cable 3.
[0052] Specifically, the mounting groove 21 is a semi-open groove, the width of the mounting groove 21 is larger than the outer diameter of the cable 3 to be welded, the depth of the mounting groove 21 is larger than the radius of the cable 3 and smaller than the outer diameter of the cable 3, which is conducive to welding the cable 3 on the mounting groove 21. The mounting groove 21 is larger than the cable 3, which makes it convenient to put the cable 3 into and out of the mounting groove 21, reducing the difficulty of welding. Heat will be generated during the welding process. If the space of the mounting groove 21 is insufficient, it may limit the thermal expansion caused by welding, resulting in increased internal pressure. Enough space is left to accommodate thermal expansion and avoid performance problems caused by temperature changes. There is also enough space to make necessary adjustments during the welding process to ensure the uniformity and quality of the welding.
[0053] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to devise other specific implementations of the present invention without inventive effort, and such implementations will fall within the scope of protection of the present invention.
Claims
1. A phase shifter, characterized in that: It includes a cavity, an insulating protrusion and a feeder mounting structure; The feed installation structure is provided with an installation groove and a positioning groove, the installation groove is arranged adjacent to the positioning groove, and the installation groove and the positioning groove share the same long side, the installation groove is used for welding the limit cable, and the bottom of the positioning groove is provided with a first positioning through hole; The insulating protrusion is arranged at the bottom of the feed mounting structure, the cavity and the feed mounting structure are connected through the insulating protrusion, there is no direct contact between the bottom of the feed mounting structure and the cavity, and multiple insulating protrusions are provided, and multiple insulating protrusions are evenly distributed around the first positioning through hole.
2. The phase shifter according to claim 1, wherein: The insulating protrusions are insulating bump structures, the insulating bump structures are made of deformable material, the number of the insulating protrusions is at least three, and the distribution of the insulating protrusions is non-collinear.
3. A phase shifter according to claim 1 or 2, characterized in that: The insulating protrusion is made of soft silicone.
4. The phase shifter according to claim 2, wherein: There are three insulating protrusions, and the three insulating protrusions are located at three vertices of an equilateral triangle centered on the first positioning through hole.
5. The phase shifter according to claim 4, characterized in that: There are two first positioning through holes; and one insulating protrusion is shared between the two first positioning through holes.
6. The phase shifter according to claim 1, characterized in that: The length of the installation groove is smaller than that of the positioning groove, and the outer areas of both ends of the installation groove are wiring avoidance areas.
7. The phase shifter according to claim 6, characterized in that: The cavity is provided with a second positioning hole corresponding to the first positioning through hole, and the mounting member passes through the first positioning through hole and the second positioning hole to fix the feed mounting structure on the cavity; The cavity is provided with a connection hole, and the cable can be connected to the components in the cavity through the connection hole.
8. The phase shifter according to claim 7, characterized in that: The first positioning through hole is provided with an arc edge corresponding to the mounting piece.
9. The phase shifter according to claim 7, characterized in that: The diameter of the connecting hole is larger than the outer diameter of the cable. The connecting hole is located directly below the wiring avoidance area. The midpoint of the connecting hole is located on the extension line of the central axis of the installation groove. The cable is bent at ninety degrees and enters the connecting hole.
10. The phase shifter according to claim 1, characterized in that: The mounting groove is a semi-open groove, the width of the mounting groove is greater than the outer diameter of the cable to be welded, and the depth of the mounting groove is greater than the radius of the cable and smaller than the outer diameter of the cable.