CN209913000U

CN209913000U - Coaxial radio frequency switch with flexible limiting belt

Info

Publication number: CN209913000U
Application number: CN201822187474.8U
Authority: CN
Inventors: 申军
Original assignee: Magvention Suzhou Ltd
Current assignee: Magvention Suzhou Ltd
Priority date: 2018-12-25
Filing date: 2018-12-25
Publication date: 2020-01-07
Anticipated expiration: 2028-12-25

Abstract

The utility model discloses a coaxial radio frequency switch with flexible spacing area, including main part and a pair of coaxial connector, still include flexible spacing area and one and be connected to the movable conducting strip of flexible spacing area, flexible spacing area has at least one end to paste in the main part, flexible spacing area allows movable conducting strip is repeated and is connected and the disconnection with unanimous coaxial connector's motion and restriction movable conducting strip stray movement. The utility model provides a coaxial radio frequency switch and spacing area manufacturing method beneficial effect with flexible spacing area does: the stray movement of the movable conducting plate in all directions is limited, so that the movable conducting plate cannot rub with the limiting column, particles cannot be generated, the pollution to contacts is reduced, and the reliability of an electromechanical relay (or switch) is improved.

Description

Coaxial radio frequency switch with flexible limiting belt

Technical Field

The utility model relates to a switch or relay with flexible spacing area. More particularly, the present invention relates to a coaxial radio frequency switch having a flexible limiting strap and a method of making the same.

Background

A coaxial radio frequency switch is a special type of electromechanical relay (or switch) in which a Radio Frequency (RF) signal is connected or disconnected between terminals in the switch. Generally, a coaxial rf switch uses a push rod to push a movable conductive sheet into contact with a pair of coaxial connector terminals and to connect an rf signal path between the two coaxial connector terminals. One common design is a switch that uses a seesaw-type soft magnet to swing under the action of a pair of electromagnets to push a push rod. In order to achieve a repeatable and reliable contact between the conductor terminal and the coaxial connector terminal, limiting posts are placed on both sides of the conductor terminal to limit lateral movement of the conductor spring. Such a limiting post creates additional friction between the rod and the conductor reed, thereby creating particles that can contaminate the contacts, thereby degrading the reliability of the electromechanical relay (or switch). It would be highly desirable to provide a new spacing means that is easy to manufacture and highly reliable.

SUMMERY OF THE UTILITY MODEL

The spacing post to above-mentioned current electromechanical relay (or switch) produces extra friction between pole and conductor reed to produce the granule, the granule can pollute the contact, thereby makes electromechanical relay (or switch) reliability decline problem, the to-be-solved technical problem of the utility model is to provide a coaxial radio frequency switch with flexible spacing area.

In order to solve the technical problem, the utility model discloses a technical scheme is:

a coaxial radio frequency switch with a flexible limiting belt comprises a main body, a pair of coaxial connectors, the flexible limiting belt and a movable conducting strip connected to the flexible limiting belt, wherein at least one end of the flexible limiting belt is attached to the main body, and the flexible limiting belt allows the movable conducting strip to be repeatedly and consistently connected with and disconnected from the coaxial connectors and limits the stray movement of the movable conducting strip.

The preferable scheme of the scheme is as follows: still include push rod assembly, push rod assembly includes top push rod and bottom push rod.

The preferable scheme of the scheme is as follows: the top push rod is higher than the movable conducting strip.

The preferable scheme of the scheme is as follows: the bottom push rod is lower than the movable conducting strip.

The preferable scheme of the scheme is as follows: the flexible limiting belts are positioned at two ends of the upper half part and the lower half part of the main body.

The preferable scheme of the scheme is as follows: the movable conductive sheet is free of any openings.

Compared with the prior art, the utility model discloses following beneficial effect has: the switch comprises a pair of coaxial connectors and a flexible limiting belt attached to a movable conducting strip, wherein the flexible limiting belt is arranged at least one fixed end, so that the movable conducting strip can freely and consistently move, and the connection and disconnection between the flexible limiting belt and the coaxial connectors limit the stray movement of the movable conducting strip around and around, and the movable conducting strip cannot rub against a limiting column, so that particles cannot be generated, the pollution to a contact is reduced, and the reliability of an electromechanical relay (or a switch) is improved.

Description of the drawings

Fig. 1 is a cross-sectional view of an exemplary embodiment of a coaxial rf switch having a flexible limiting strap according to the present invention.

FIG. 2 is a top view of the position of the stop band of the present invention;

fig. 3 is a perspective view of the position of the limit band of the present invention.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, 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 belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, 2 and 3, the manufacturing method of the coaxial rf on/off limiter with a flexible limiter strip of the present embodiment includes a pair of

electromagnets

10 and 20, a soft magnetic seesaw assembly 30, a permanent magnet 40, a soft magnetic plate 80, push rod assemblies 50 and 60, a cavity 70,

coaxial connectors

110, 120 and 130, and a flexible limiter strip 259.

The soft magnetic seesaw assembly 30 includes a soft magnetic seesaw 31, a pressure spring 32, and a rotation shaft 33.

Pushrod

assembly

250, 260 includes top pushrod 251 and bottom pushrod 254, return spring 52, and movable conductive sheet 253. The top and

bottom push rods

251 and 254 may be made of any dielectric material. The spring 52 may be made of stainless steel. One function of spring 52 is to urge bottom pushrod 254 upward to its natural position without the application of external force. The movable conductive pad 253 can be made of any conductive material, such as beryllium copper, preferably gold plated. The flexible limiting strap 259 may be made of any elastic material (e.g., polyimide) with sufficient bending flexibility and durability. A flexible restraint strap 259 is attached to each end and includes 72 or lower body 71. The movable conductive piece 253 is attached (e.g., by bonding using epoxy) with the flexible stopper strap 259 toward the center so that the movable conductive piece 253 can move vertically while its displacement is restricted in the other direction. The movable conductive pad 253 need not have a hole to be fixed to the top pushrod 251 or the bottom pushrod 254.

Each

coaxial connector

110, 120 and 130 includes a center conductor 111, a dielectric ring 112 and a housing 113.

As shown in the coaxial Radio Frequency (RF) switch 200 in fig. 3, when the soft magnetic seesaw 31 is attracted by the left-hand core 11 of the electromagnet 10 and rotates clockwise, the pressure spring piece 32 pushes the push rod assembly 250 and causes the movable conductive sheet 253 to connect the center conductors 111 of the

coaxial connectors

110 and 120, enabling the transmission of the radio frequency signal from the coaxial connector 110 to the coaxial connector 120 (or vice versa) (closed state). At the same time, the left hand push bar assembly 260 pushes upward through the return spring 52, lifting the left hand movable conductive pad 253, disconnecting the Radio Frequency (RF) signal path between the coaxial connectors 110 and 130 (open state). In these processes, the flexible limiting belt 259 binds the movable conducting strip 253, so that the movable conducting strip 253 can move vertically, and the displacement of the movable conducting strip 253 in other directions is limited, thereby ensuring the repeatability and reliability of the switching function.

Conversely, when the softmagnetic seesaw 31 is rotated counterclockwise by the solenoid valve 20 of the right core 11, the corresponding push rod assembly moves in the opposite direction to that described above, which causes the Radio Frequency (RF) channel between 110 and 120 to be opened and the Radio Frequency (RF) channel between 110 and 130 to be closed.

It will be appreciated that the coaxial rf switch compliant retaining strap may be manufactured in a variety of ways. A detailed description of various possible manufacturing methods is omitted here for the sake of brevity.

It is understood that many other embodiments and combinations of different material selections and arrangements can be made without departing from the scope of the invention. Also, various topographies and geometries of electromechanical relays can be tailored by varying the layout of the various components.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A coaxial radio frequency switch with a flexible limiting belt comprises a main body and a pair of coaxial connectors and is characterized by further comprising a flexible limiting belt and a movable conducting strip connected to the flexible limiting belt, wherein at least one end of the flexible limiting belt is attached to the main body, and the flexible limiting belt allows the movable conducting strip to be repeatedly and consistently connected with and disconnected from the coaxial connectors and limits the stray movement of the movable conducting strip.

2. The coaxial radio frequency switch with the flexible limiting band of claim 1, further comprising a push rod assembly, the push rod assembly comprising a top push rod and a bottom push rod.

3. The coaxial radio frequency switch with the flexible retaining strap of claim 2, wherein the top push rod is higher than the movable conductive sheet.

4. The coaxial rf switch with the flexible limiting strap of claim 2, wherein the bottom pushrod is lower than the movable conductive tab.

5. The coaxial rf switch with the flexible limiting strap of claim 1, wherein the flexible limiting strap is located at both ends of the upper half and the lower half of the body.

6. The coaxial RF switch with the flexible limiting strap according to any one of claims 1 to 5, wherein the movable conductive sheet is free of any opening.