CN216214268U

CN216214268U - Novel miniature radio frequency switch

Info

Publication number: CN216214268U
Application number: CN202122509939.9U
Authority: CN
Inventors: 叶国荣; 符忠忠
Original assignee: Shenzhen Qmsen Electronic Technology Co ltd
Current assignee: Shenzhen Qmsen Electronic Technology Co ltd
Priority date: 2021-10-19
Filing date: 2021-10-19
Publication date: 2022-04-05
Anticipated expiration: 2031-10-19

Abstract

The utility model relates to the technical field of connectors, in particular to a novel miniature radio frequency switch, which comprises an insulating body and a conductive terminal, wherein the conductive terminal comprises a first terminal and a second terminal, the first terminal and the second terminal respectively comprise a fixing part, the fixing part of the first terminal is connected with a first contact part through a first cantilever, the fixing part of the second terminal is connected with a contact element through a second cantilever, the contact element is provided with a second contact part and an insulating part, and the first contact part extends into a position between the second contact part and the insulating part; according to the utility model, through the deformation of the two terminals in the same direction after long-term use, the defect of insufficient resilience of the terminals after metal fatigue is made up, and the service life is prolonged.

Description

Novel miniature radio frequency switch

Technical Field

The utility model relates to the technical field of connectors, in particular to a novel miniature radio frequency switch.

Background

The rf coaxial switch is widely used in a mobile device for testing an antenna signal, and generally includes an upper plastic body, a lower plastic body, a movable terminal and a stationary terminal assembled in the upper plastic body and the lower plastic body, and a metal housing holding the upper plastic body and the lower plastic body together.

As described in the chinese utility model "a micro rf switch" (publication No. CN210489870U), there is provided an rf switch comprising a contact element, a movable element, and the like, wherein the movable element is slowly disconnected from the contact element after receiving a downward pressure from a contact pin of an opposite connector, thereby realizing switching of an electrical signal path of the micro rf switch; after the connector pin is removed, the movable element rebounds upwards under the action of elastic deformation rebounding force and contacts with the contact element again, so that the operation can be repeated as a cycle, however, the miniature radio frequency switch is small in size, so that the elastic arm is small in force arm, the elastic arm is easy to deform too much when stressed unevenly, metal fatigue or permanent deformation occurs at local parts of the elastic arm too early, or metal fatigue occurs after multiple times of stress, the rebounding amount of the movable element is insufficient, unstable contact or no contact is caused, and the service life is shortened.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to overcome the defects in the prior art, and provides a novel micro rf switch, which compensates the defect of insufficient resilience of a terminal after metal fatigue by means of deformation of two terminals in the same direction after long-term use, and prolongs the service life.

The utility model relates to a novel miniature radio frequency switch, which comprises an insulating body and a conductive terminal, wherein a cavity for accommodating the conductive terminal is arranged in the insulating body, the cavity is communicated with the outside through a jack, the conductive terminal comprises a first terminal and a second terminal, both the first terminal and the second terminal comprise fixing parts, the fixing parts are connected with the insulating body to keep relative fixation, the first terminal and the second terminal fixing parts are arranged at two sides of the insulating body, the fixing part of the first terminal is connected with a first contact part through a first cantilever, the fixing part of the second terminal is connected with a contact part through a second cantilever, the contact part is provided with a second contact part and an insulating part, the second contact part is connected with the insulating part to keep a fixed distance, and the first contact part extends into a position between the second contact part and the insulating part, the cantilever of the first terminal is provided with a pressed part at a position right opposite to the jack of the insulating body.

Furthermore, the insulating body comprises a base and an insertion part, the cavity is formed between the base and the insertion part, a movable space for the first cantilever, the first contact part, the second cantilever and the contact element to move downwards is arranged on the base, and a limiting part is arranged at the position of the insertion part relative to the contact element.

Furthermore, first cantilever include with the elastic segment that the fixed part is connected and with the extension section that first contact site is connected, be provided with the strengthening rib along its extending direction on the extension section.

Further, leaf springs are arranged on two sides of the first cantilever and are in compression joint with the base and are arranged on two sides of the movable space in parallel.

Further, the base is located the outside of leaf spring still is provided with spacing bead.

Furthermore, the fixing part is bent to form an element welding part, and pits are arranged on the bottom surface of the element welding part.

Further, the second cantilever has a U-shaped bent structure on a plane parallel to the first cantilever.

The utility model has the beneficial effects that: the utility model discloses a novel miniature radio frequency switch, which is provided with an insulating body, a first terminal and a second terminal, wherein the first terminal and the second terminal are accommodated in the insulating body, the first terminal and the second terminal are both kept by a cantilever, the cantilever end of the first terminal is provided with a first contact part, the cantilever end of the second terminal is provided with a contact part comprising a second contact part and an insulating part, the first contact part is positioned between the second contact part and the insulating part, and when the miniature radio frequency switch is used, a contact pin entering through a jack presses down the first terminal, and simultaneously the first terminal drives the second terminal through the insulating part, so that the first terminal and the second terminal can generate metal fatigue in the using process, the defect of insufficient resilience of the first terminal is counteracted, and the service life is prolonged.

Drawings

The utility model is further described below with reference to the following figures and examples:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a schematic view of a conductive terminal according to the present invention;

FIG. 4 is a schematic cross-sectional view of the present invention;

fig. 5 is a bottom view of the conductive terminal of the present invention.

Description of reference numerals: the connector comprises an insulating body 1, a base 11, a movable space 110, a limiting part 111, a limiting convex rib 112, a plugging part 12, a jack 120, a conductive terminal 2, a first terminal 21, a fixing part 210, an element welding part 211, a pit 212, a first cantilever 213, an elastic section 214, an extension section 215, a reinforcing rib 216, a first contact part 217, a plate spring 218, a second terminal 22, a second cantilever 220, a contact part 221, a second contact part 222 and an insulating part 223.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-5, in this embodiment, a novel micro rf switch includes an insulating body 1 and a conductive terminal 2, the insulating body 1 includes a base 11 and a plug portion 12, in practical production, a housing may be covered outside the insulating body 1 to enhance structural strength, a cavity is formed between the base 11 and the plug portion 12 to accommodate the conductive terminal 2, the cavity is communicated with the outside through a jack 120 disposed on the plug portion 12, a pin for electrical connection enters and exits the cavity through the jack 120 to touch the conductive terminal 2, the conductive terminal 2 includes a first terminal 21 and a second terminal 22, the first terminal 21 and the second terminal 22 both include a fixing portion 210, the fixing portion 210 is connected to the insulating body 1 to maintain relative fixation, in this embodiment, the fixing portion 210 is fixed to the plug portion 12, and the fixing portions 210 of the first terminal 21 and the second terminal 22 are partially arranged on the insulating body 1 The first cantilever 213 is preferably straight, the fixed portion 210 of the first terminal 21 is connected with the first contact portion 217 by the first cantilever 213, the fixed portion 210 of the second terminal 22 is connected with the contact 221 by the second cantilever 220, the second cantilever 220 has a U-shaped bent structure on a plane parallel to the first cantilever 213, the volume of the switch can be reduced, the contact 221 has a second contact portion 222 and an insulation portion 223, the second contact portion 222 is connected with the insulation portion 223 to maintain a fixed interval, in this embodiment, the contact 221 is a C-shaped structure formed by bending a sheet structure, the upper portion of the C-shaped structure is the contact portion, the lower portion of the C-shaped structure forms the insulation portion 223 by covering the insulation film, the first contact portion 217 extends into a position between the second contact portion 222 and the insulation portion 223, the fixed distance forms the movable space 110 of the first contact portion 217, and in the free state, the first contact portion 217 and the second contact portion 222 are kept in contact and separated from the insulating portion 223, and the cantilever of the first terminal 21 is provided with a pressed portion at a position right opposite to the insertion hole 120 of the insulating body 1.

In the actual use process, the external pin is pressed against the pressed part, the first cantilever 213 is forced to move downwards, the first contact part 217 is separated from the second contact part 222, the switch off function is realized, then the first cantilever is pressed against the insulating part 223, the whole contact element 221 is driven to press downwards along with the further penetration of the pin, the second cantilever 220 is also deformed, and after repeated plugging and unplugging, even if the first terminal 21 is permanently deformed due to metal fatigue and the resilience is insufficient, the second terminal 22 is also moved downwards due to permanent deformation, so that the defect that the resilience of the first terminal 21 is insufficient is overcome, and the service life is prolonged.

In this embodiment, the base 11 is provided with a movable space 110 for the first suspension arm 213, the first contact portion 217, the second suspension arm 220 and the contact 221 to move downward, the position of the insertion portion 12 relative to the contact 221 is provided with a limiting portion 111, and the limiting portion 111 may be a top wall provided relative to the contact 221, and functions to limit the lifting height of the contact 221.

In this embodiment, the first cantilever 213 includes an elastic section 214 connected to the fixing portion 210 and an extending section 215 connected to the first contact portion 217, and the extending section 215 is provided with a rib 216 along the extending direction thereof, so that when a force is applied, the deformation of the first cantilever 213 mainly occurs on the elastic section 214, and the deformation of the extending section 215 is small, thereby avoiding a poor contact when the first cantilever is in contact with an external pin, and the extending section 215 having the rib 216 can well maintain the force applied to the second terminal 22.

In order to increase the elastic force acting point of the first terminal 21, leaf springs 218 are further provided on both sides of the first cantilever 213, and the leaf springs 218 are pressed against the base 11 and are arranged on both sides of the movable space 110. The base 11 is further provided with a limit rib 112 at the outer side of the plate spring 218 to prevent displacement thereof.

In this embodiment, the fixing portion 210 is bent to form an element welding portion 211, and the bottom surface of the element welding portion 211 is provided with a pit 212, so that the bonding force of element welding can be increased.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. The utility model provides a novel miniature radio frequency switch, includes insulator and conductive terminal, the insulator has the cavity that holds conductive terminal in, the cavity is external through a jack intercommunication, conductive terminal includes first terminal and second terminal, its characterized in that: the first terminal and the second terminal respectively comprise fixing portions, the fixing portions are connected with the insulating body to be relatively fixed, the first terminal and the second terminal fixing portions are arranged on two sides of the insulating body, the fixing portions of the first terminals are connected with first contact portions through first cantilevers, the fixing portions of the second terminals are connected with contact pieces through second cantilevers, the contact pieces are provided with second contact portions and insulating portions, the second contact portions are connected with the insulating portions to keep a fixed interval, the first contact portions stretch into the second contact portions and positions between the insulating portions, and the cantilevers of the first terminals are arranged at positions corresponding to the jacks of the insulating body and are provided with pressed portions.

2. The novel miniature radio frequency switch of claim 1, wherein: the insulating body comprises a base and an inserting part, the cavity is formed between the base and the inserting part, a movable space for the first cantilever, the first contact part, the second cantilever and the contact to move downwards is arranged on the base, and a limiting part is arranged at the position of the inserting part relative to the contact.

3. The novel miniature radio frequency switch of claim 1, wherein: the first cantilever comprises an elastic section connected with the fixing part and an extension section connected with the first contact part, and a reinforcing rib is arranged on the extension section along the extension direction of the extension section.

4. The novel miniature radio frequency switch of claim 2, wherein: and leaf springs are arranged on two sides of the first cantilever and are in compression joint with the base and are arranged on two sides of the movable space in parallel.

5. The novel miniature radio frequency switch of claim 4, wherein: the base is in the outside of leaf spring still is provided with spacing bead.

6. The novel miniature radio frequency switch of claim 1, wherein: the fixing part is bent to form an element welding part, and pits are arranged on the bottom surface of the element welding part.

7. The novel miniature radio frequency switch of claim 1, wherein: the second cantilever has a U-shaped bent structure on a plane parallel to the first cantilever.