CN223052398U

CN223052398U - Connection structure and on-board metal cavity filter

Info

Publication number: CN223052398U
Application number: CN202422256262.6U
Authority: CN
Inventors: 邹爱平; 李丰; 王伟曳
Original assignee: Dongguan Ace Technologies Corp
Current assignee: Dongguan Ace Technologies Corp
Priority date: 2024-09-14
Filing date: 2024-09-14
Publication date: 2025-07-01
Anticipated expiration: 2034-09-14

Abstract

The present application provides a connection structure and a board-mounted metal cavity filter. The connection structure is used to connect the cavity filter on the board-mounted metal cavity filter to the PCB board, and includes: a power connection pole; an insulating medium, which is sleeved on the circumference of the power connection pole and its circumference is connected to the cavity filter; a conductive member, which is used to connect to the PCB board; the conductive member is arranged on one end side of the power connection pole, and the conductive member has a deformation portion in its axial direction, and the contact area between the conductive member and the power connection pole is smaller than the end surface area of the power connection pole. The connection structure and board-mounted metal cavity filter provided by the present application effectively improve the rigidity of the power connection pole and have better resistance to external forces; and the connection state between the power connection pole and the conductive member is easy to observe and detect.

Description

Connection structure and on-board metal cavity filter

Technical Field

The application belongs to the technical field of communication, and particularly relates to a connection structure and an on-board metal cavity filter.

Background

Referring to fig. 6 and 7, a cavity filter 430 on the on-board metal cavity filter is connected with the PCB 420 through a connection structure. In general, the conventional connection structure is generally implemented by blind plugging of a plugging structure, that is, a plug of the cavity filter 430 is plugged into a socket 520 of the PCB 420 to realize electrical signal transmission. However, the plug on the foregoing plugging structure generally includes a plurality of elastic arms 510, the size of the elastic arms 510 is extremely small, so that the processing cost is relatively high, meanwhile, the elastic arms 510 are easily deformed due to compression, poor contact is easily caused after the deformed elastic arms 510 are plugged into the sockets 520, and the contact condition is difficult to detect after plugging, so that the production yield of the on-board metal cavity filter is difficult to control.

Disclosure of utility model

The embodiment of the application aims to provide a connecting structure and an on-board metal cavity filter, so as to solve the technical problem of poor contact of the connecting structure in the prior art.

In order to achieve the above object, according to an embodiment of the first aspect of the present application, a connection structure is provided, for connecting a cavity filter on a metal cavity filter on a board with a PCB board, including:

a power receiving rod;

The insulating medium is sleeved on the periphery of the electric pole, and the periphery of the insulating medium is connected with the cavity filter;

The PCB comprises a conductive piece and a conductive rod, wherein the conductive piece is connected with the PCB, the conductive piece is arranged at one end side of the conductive rod, the conductive piece is provided with a deformation part in the axial direction, and the contact area of the conductive piece and the conductive rod is smaller than the end surface area of the conductive rod.

Optionally, the conductive member at least comprises two deformed reeds which are symmetrical in center and are arranged in a bending mode, and the bending directions of the deformed reeds are opposite to each other.

Optionally, the deformation reed is centrally and symmetrically provided with four pieces.

Optionally, each deformation reed is integrally formed.

Optionally, the electric pole includes first diameter section and second diameter section, the diameter of first diameter section is greater than the diameter of second diameter section, insulating medium cover is located the second diameter section and with the terminal surface butt of first diameter section.

Optionally, a hooking portion is disposed on the peripheral surface of the first diameter section of the conductive rod, the inclination direction of the hooking portion is inclined towards the second diameter section, and a hooking groove is correspondingly disposed on the inner peripheral surface of the insulating medium.

Optionally, the insulating medium is formed with a step in an axial direction.

In a second aspect of the present application, an on-board metal cavity filter is provided, which includes a substrate, a PCB board fixedly disposed on the substrate, and a cavity filter detachably disposed on the PCB board, wherein the connection structure is connected between the cavity filter and the PCB board, and the conductive member is welded on the PCB board.

Optionally, an installation cavity is provided on the cavity filter, and when the cavity filter is connected to the PCB board, an installation space for accommodating the connection structure is formed on the surface of the installation cavity and the surface of the PCB board.

Optionally, a stepped hole is formed in a side wall of the mounting cavity, and the stepped hole is used for penetrating the electric connection rod and fixing the insulating medium.

The connecting structure and the on-board metal cavity filter provided by the embodiment of the application have at least the following beneficial effects:

The traditional plug and the socket are changed into a connection mode of the electric connection rod and the electric conduction piece, and the end face of the electric connection rod is electrically contacted with the electric conduction piece, so that when the electric connection rod extrudes the electric conduction piece, the deformation part of the electric conduction piece abuts against the electric connection rod under the action of elasticity, and therefore stable electric signal transmission can be kept.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of a connection structure according to some embodiments of the present application;

FIG. 2 is a front view of a conductive rod and a conductive member according to some embodiments of the present application;

FIG. 3 is a perspective view of a conductive element according to some embodiments of the present application;

FIG. 4 is a cross-sectional view of a metal-on-board cavity filter in accordance with some embodiments of the present application;

FIG. 5 is an enlarged view of FIG. 4 at A;

FIG. 6 is a cross-sectional view of a related art on-board metal cavity filter;

fig. 7 is an enlarged view at B in fig. 6.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments.

It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element.

When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1 to 5, a connection structure according to an embodiment of the present application will be described.

It will be appreciated that referring to fig. 4 and 5, the connection structure of the present application, which is used for connecting the on-board metal cavity filter 430 to the PCB 420, includes the conductive rod 100, the insulating medium 200 and the conductive member 300.

Referring to fig. 4, it can be understood that the on-board metal cavity filter at least includes a PCB 420 and a cavity filter 430, and the cavity filter 430 is fixedly connected to the PCB 420 and is electrically connected to the PCB 420 through a connection structure, so that an electrical signal can be transmitted to the cavity filter 430 for filtering.

Referring to fig. 1 to 3, in particular, the conductive rod 100 is rod-shaped, the insulating medium 200 is sleeved on the circumferential side of the conductive rod 100 and the circumferential side thereof is connected with the cavity filter 430 to fix the conductive rod 100 in the cavity filter 430 to achieve stable signal coupling, the conductive member 300 is fixedly connected with the PCB 420, for example, welded or threaded on the PCB 420, the conductive member 300 is disposed at a position on the PCB 420 in the axial direction of the conductive rod 100, that is, the conductive member 300 abuts against the end surface of the conductive rod 100 to achieve electric signal transmission, in particular, a deformation portion is disposed in the axial direction of the conductive member 300, the deformation portion can be elastically deformed in the axial direction, and when the conductive rod 100 is assembled in place, the bottom end surface of the conductive rod 100 presses the deformation portion on the conductive member 300 to enable the deformation portion to abut against the conductive rod 100 under the elastic force, so that the conductive rod 300 can maintain a close contact state to ensure the stability of electric signal transmission.

By arranging the deformation part on the conductive member 300 and arranging the contact position of the conductive member 300 and the conductive rod 100 on the end surface of the conductive rod 100, the conductive rod 100 can be arranged into a single rod shape without arranging an elastic arm, so that the rigidity of the conductive rod 100 is effectively improved, and the conductive rod has better external force resistance; in addition, the deformation portion on the conductive member 300 is disposed along the axial direction, so that the connection state of the conductive rod 100 and the conductive member 300 is easy to observe and detect.

Referring to fig. 3, in some embodiments, the deformation portion includes at least two deformation leaves 310, each of which is centrally and symmetrically disposed and is curved, and the curved directions of each of the deformation leaves 310 are disposed opposite to each other. By arranging the bending directions of the deformation springs 310 in opposition, the contact points with the contact rod 100 at the deformation portion can be concentrated around the axis of the conductive member 300.

Referring to fig. 3, in some embodiments, the width of each deformed reed 310 varies across different axial heights. Specifically, the width of the deformed reed 310 becomes smaller from large to small in the axial direction from low to high until the tip end thereof is pointed. Thus, the portion of the deformed reed 310 with a larger width has better rigidity, while the tip has better elasticity, so that when the conductive rod 100 contacts with the conductive member 300, the tip can make the conductive member 300 fully contact with the conductive rod 100, and the portion with a larger width can limit the conductive member 300 to deform greatly, so as to maintain a good contact state.

Referring to fig. 3, in a further embodiment, the deformation leaves 310 are arranged in four pieces symmetrically at the center, and each deformation leaf 310 is integrally formed, for example, by punching and bending a metal plate.

Referring to fig. 2 and 5, in some embodiments, the conductive rod 100 includes a first diameter section 110 and a second diameter section 120, the diameter of the first diameter section 110 is greater than the diameter of the second diameter section 120, and the insulating medium 200 is sleeved on the second diameter section 120 and abuts against the end surface of the first diameter section 110. By providing the first diameter section 110 and the second diameter section 120 on the conductive rod 100, a diameter difference between the first diameter section 110 and the second diameter section 120 can form a stop surface, so that the insulation medium 200 can be limited to move continuously along the axial direction of the conductive rod 100, thereby playing a role in assembling and positioning the insulation medium 200, and simplifying the assembling steps between the conductive rod 100 and the insulation medium 200.

Referring to fig. 2 and 5, further, a hooking portion 130 is provided on the circumferential surface of the first diameter section 110 of the electric pole 100, the inclination direction of the hooking portion 130 is inclined toward the second diameter section 120, the included angle between one side of the hooking portion 130, which is close to the first diameter section 110, and the second diameter section 120 is an acute angle or a right angle, and correspondingly, a hooking groove is provided on the inner circumferential surface of the insulating medium 200, and the hooking groove is used for clamping the hooking portion 130. Specifically, when the insulating medium 200 slides to the assembling position along the axial direction of the electric pole 100, after the hooking portion 130 is snapped into the hooking groove, that is, it represents that the insulating medium 200 is assembled in place, and because the included angle between the side of the hooking portion 130, which is close to the first diameter section 110, and the second diameter section 120 is an acute angle or a right angle, it can prevent the insulating medium 200 from moving in a direction away from the first diameter section 110, so that an axial limiting structure is formed together with the above-mentioned stop surface.

Referring to fig. 1, in some embodiments, the insulating medium 200 is formed with a stepped portion 210 in an axial direction, and the stepped portion 210 of the insulating medium 200 abuts against the cavity filter 430 to limit the insulating medium 200 from moving away from the first diameter section 110 in the process of being assembled and connected to the cavity filter 430 after the insulating medium 200 is assembled and fixed with the conductive rod 100.

Referring to fig. 4 and 5, in a second embodiment of the present application, an on-board metal cavity filter is provided, which includes a substrate 410, a PCB 420, a cavity filter 430 and the aforementioned connection structure, wherein the PCB 420 is fixedly disposed on the substrate 410, the cavity filter 430 is fixedly connected to the PCB 420 through bolts, an insulating medium 200 in the connection structure is clamped in the cavity filter 430, and a conductive member 300 in the connection structure is welded on the PCB 420.

Further, referring to fig. 5, a mounting cavity 431 is provided on the cavity filter 430, and when the cavity filter 430 is connected to the PCB 420, a mounting space for accommodating a connection structure is formed between the mounting cavity 431 and the surface of the PCB 420. Specifically, a stepped limiting portion is formed in the mounting cavity 431, and the limiting portion is configured to cooperate with the stepped portion 210 on the insulating medium 200 to limit the insulating medium 200 and the conductive rod 100 from being separated from the conductive member 300, so as to cause poor contact.

The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application.

Claims

1. A connection structure for connecting a cavity filter on a board-mounted metal cavity filter to a PCB board, characterized in that it comprises:

Connecting electric poles;

An insulating medium is sleeved on the peripheral side of the power connection pole and its peripheral side is connected to the cavity filter;

A conductive member is used to connect with the PCB board; the conductive member is arranged on one end side of the power connection rod, and the conductive member has a deformation portion in its axial direction, and the contact area between the conductive member and the power connection rod is smaller than the end surface area of the power connection rod.

2. The connection structure according to claim 1, wherein the conductive member comprises at least two deformable spring pieces which are centrally symmetrical and bent, and the bending directions of the deformable spring pieces are arranged opposite to each other.

3. The connection structure according to claim 2, characterized in that: the deformable spring leaves are arranged in four pieces symmetrically with respect to the center.

4. The connection structure according to claim 2 or 3, characterized in that each of the deformable spring leaves is integrally formed.

5. The connection structure according to any one of claims 1 to 3, characterized in that: the connecting rod comprises a first diameter section and a second diameter section, the diameter of the first diameter section is larger than the diameter of the second diameter section, and the insulating medium is sleeved on the second diameter section and abuts against the end face of the first diameter section.

6. The connection structure according to claim 5 is characterized in that: a hooking portion is provided on the circumferential surface of the first diameter section of the connecting rod, and the inclination direction of the hooking portion is inclined toward the second diameter section; and a hooking groove is correspondingly provided on the inner circumferential surface of the insulating medium.

7. The connection structure according to claim 5, wherein the insulating medium is formed with a step portion in the axial direction.

8. A board-mounted metal cavity filter, comprising:

substrate;

A PCB board is fixedly arranged on the substrate;

A cavity filter is detachably arranged on the PCB board, and the connection structure according to claim 7 is connected between the cavity filter and the PCB board;

Wherein, the conductive element is welded to the PCB board.

9. The board-mounted metal cavity filter according to claim 8, characterized in that: a mounting cavity is provided on the cavity filter, and when the cavity filter is connected to the PCB board, the mounting cavity and the surface of the PCB board form an installation space for accommodating the connection structure.

10 . The board-mounted metal cavity filter according to claim 9 , wherein a stepped hole is provided on the side wall of the installation cavity, and the stepped hole is used to penetrate the power connecting rod and fix the insulating medium.