CN110911788A

CN110911788A - Duplexer

Info

Publication number: CN110911788A
Application number: CN201911380327.5A
Authority: CN
Inventors: 龚爱强; 温世议
Original assignee: Shenzhen Tatfook Technology Co Ltd
Current assignee: Shenzhen Tatfook Technology Co Ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-03-24

Abstract

The embodiment of the application discloses a duplexer for be convenient for dismantle the PCB apron when debugging the inner chamber index of duplexer and circuit board PCBA coupling index. The duplexer of the embodiment of the application comprises: the connector, the cavity, the ground connection piece, the PCB apron, circuit board PCBA, be provided with the through-hole on the ground connection piece, connector and cavity fixed connection, at this moment, can debug the inner chamber index and circuit board PCBA coupling index of duplexer earlier, after the debugging finishes, because the aperture of the through-hole of ground connection piece is greater than the external diameter of connector towards the outside one end of cavity, consequently, can make the connector pass the through-hole of ground connection piece towards the outside one end of cavity, and then be connected to the ground connection piece on the cavity, namely get the duplexer of assembled. In the embodiment of the application, the installation of the grounding block is carried out after the index debugging is finished, so the grounding block cannot obstruct the disassembly of the PCB cover plate, meanwhile, the problem that the connector limits the movement of the grounding block does not exist, and the PCB cover plate can be conveniently disassembled.

Description

Duplexer

Technical Field

The embodiment of the application relates to the field of electronic equipment, in particular to a duplexer.

Background

The duplexer is a main accessory of a pilot frequency duplex radio station and a relay station, and has the function of isolating a transmitting signal from a receiving signal and ensuring that the receiving and the transmitting can work normally at the same time. Fig. 1A is a schematic structural diagram of a duplexer, in which a Printed Circuit Board Assembly (PCBA) is mounted in the duplexer (the PCBA is not shown in the figure), a Printed Circuit Board (PCB) cover plate 105 is mounted on the PCBA, and the PCB cover plate 105 is mounted on the cavity 104 of the duplexer. In the assembly process of the duplexer, the connector 102 and the grounding block 103 are first screwed, and then the whole body of the connector 102 and the grounding block 103 after being connected is fixed on the cavity 104 by using the screw 101, thereby completing the assembly process. Fig. 1B shows a top view of the assembled duplexer product, with the ground bumps 103 located above the PCB cover plate 105 as shown in fig. 1B.

After the duplexer is assembled, the inner cavity index of the duplexer and the PCBA coupling index of the circuit board need to be debugged, at this time, the PCB cover plate 105 needs to be detached, and the grounding block 103 located above the PCB cover plate 105 may obstruct the detaching process of the PCB cover plate 105, so that the grounding block 103 needs to be detached, that is, the screw 101 is taken out to separate the grounding block 103 from the duplexer. However, since the grounding block 103 has been screwed with the connector 102 into a single body and the connector 102 has mounted the cable on the duplexer, the cable has a limited length, which limits the movement of the grounding block 103, and if the grounding block 103 is limited by the length of the cable and can move only a small distance, it is inconvenient to detach the PCB cover 105, and therefore, it is necessary to optimize the structure of the duplexer.

Disclosure of Invention

The embodiment of the application provides a duplexer for be convenient for dismantle the PCB apron when debugging the inner chamber index of duplexer and circuit board PCBA coupling index.

The embodiment of the application provides a duplexer, including: the connector, the cavity, the grounding block, the PCB cover plate and the circuit board PCBA;

the circuit board PCBA is arranged in the cavity;

the connector is fixedly connected with the cavity and is connected with the part in the cavity through a cable;

the PCB cover plate covers the PCBA;

the ground connection piece with the cavity is connected, be provided with the through-hole on the ground connection piece, the aperture of the through-hole of ground connection piece is greater than the connector orientation the external diameter of the outside one end of cavity, the connector passes the through-hole of ground connection piece.

Preferably, the connector is fixedly connected with the cavity through a fixing piece; specifically, the method comprises the following steps:

the fixing piece is provided with a through hole, and the connector penetrates through the through hole of the fixing piece and is connected with the fixing piece.

Preferably, the fixing member is a fixing column having a through hole and fixed on the cavity.

Preferably, an opening is formed in a side wall of the fixing column, and a cable of the connector penetrates through the opening to be connected with a part in the cavity.

Preferably, the fixing column is cylindrical, and the connector is in threaded connection with the fixing column.

Preferably, the fixing member is a fixing plate;

the fixing plate is provided with a through hole, and the connector penetrates through the through hole of the fixing plate and is connected with the fixing piece;

the fixing plate is fixedly connected with the cavity through a connecting piece, so that the connector is fixedly connected to the cavity.

Preferably, the connecting member is a screw.

Preferably, the fixing member and the cavity are formed in a split manner, and the fixing member is connected with the cavity through a connecting member.

Preferably, the fixing member is formed integrally with the cavity.

Preferably, the grounding block is fixedly connected with the cavity through a screw.

According to the technical scheme, the embodiment of the application has the following advantages:

the duplexer of this application embodiment includes the connector, the cavity, the ground connection piece, the PCB apron, circuit board PCBA, be provided with the through-hole on the ground connection piece, connector and cavity fixed connection, at this moment, can debug the inner chamber index and the circuit board PCBA coupling index of duplexer earlier, after the debugging finishes, because the aperture of the through-hole of ground connection piece is greater than the external diameter of connector towards the outside one end of cavity, consequently, can make the connector pass the through-hole of ground connection piece towards the outside one end of cavity, and then be connected to the ground connection piece on the cavity, namely get the duplexer assembled. In the embodiment of the application, the installation of the grounding block is carried out after the index debugging is finished, so the grounding block cannot obstruct the disassembly of the PCB cover plate, meanwhile, the problem that the connector limits the movement of the grounding block does not exist, and the PCB cover plate can be conveniently disassembled.

Drawings

Fig. 1A is a schematic structural diagram of a duplexer in the prior art;

fig. 1B is a top view of a duplexer in the prior art;

fig. 2 is a schematic structural diagram of a duplexer in an embodiment of the present application;

fig. 3 is another structural diagram of a duplexer in the embodiment of the present application;

fig. 4 is a schematic structural diagram of a fixed column of a duplexer in an embodiment of the present application.

Detailed Description

Referring to fig. 2, an embodiment of a duplexer in the embodiment of the present application includes:

connector 203, cavity 204, grounding block 202, PCB cover 205, circuit board PCBA (not shown in the figure);

the circuit board PCBA is arranged in the cavity 204;

the connector 203 is fixedly connected with the cavity 204, and the connector 203 is connected with parts in the cavity 204 through cables;

the PCB cover 205 covers the circuit board PCBA;

the grounding block 202 is connected with the cavity 204, a through hole 206 is arranged on the grounding block 202, the aperture of the through hole 206 of the grounding block 202 is larger than the outer diameter of one end of the connector 203 facing the outside of the cavity 204, and the connector 203 penetrates through the through hole 206 of the grounding block 202.

In this embodiment, the number of the through holes 206 is not limited.

Wherein, the grounding block 202 can be screwed with the cavity 204 through the screw 201. It should be noted that the connection between the grounding block 202 and the cavity 204 is not limited to a threaded connection, but may be a pin connection, a key connection, or other detachable connection. In addition, if the grounding block 202 is not required to be detachable from the cavity 204, a non-detachable connection manner may also be adopted, and is not limited herein.

The duplexer of the present embodiment includes a ground block 202 provided with a through hole 206. In the assembling process of the duplexer, the connector 203 is fixedly connected with the cavity 204, at this time, the inner cavity index of the duplexer and the PCBA coupling index of the circuit board can be debugged first, and after the debugging is finished, because the aperture of the through hole 206 of the grounding block 202 is larger than the outer diameter of one end of the connector 203 facing the outside of the cavity 204, the one end of the connector 203 facing the outside of the cavity 204 can penetrate through the through hole 206 of the grounding block 202, and then the grounding block 202 is connected to the cavity 204, so that the assembled duplexer can be obtained. In addition, after the duplexer is assembled, if the cavity index and the PCBA coupling index need to be continuously adjusted, since the connector 203 can pass through the through hole 206 of the grounding block 202, the movement of the grounding block 202 is not limited by the connector 203, and the grounding block 202 can be removed, thereby facilitating the disassembly of the PCB cover plate 205.

In this application, the connector may be indirectly connected to the cavity, and the indirect connection means that the connector is indirectly connected to the cavity through the fixing member, that is, the connector is connected to the fixing member, and the fixing member is fixed to the cavity, which is equivalent to the connector being fixed to the cavity. The manner of indirect connection will be described in detail below with reference to the accompanying drawings. Referring to fig. 3, in an embodiment of the present application, another embodiment of a duplexer includes:

connector 303, cavity 306, grounding block 302, PCB cover plate 307, circuit board PCBA;

the circuit board PCBA is arranged in the cavity 306;

the connector 303 is fixedly connected with the cavity 306, and the connector 303 is connected with parts in the cavity 306 through a cable;

the PCB cover 307 covers the circuit board PCBA;

the grounding block 302 is connected with the cavity 306, a through hole 309 is formed in the grounding block 302, the aperture of the through hole 309 of the grounding block 302 is larger than the outer diameter of one end, facing the outside of the cavity 306, of the connector 303, and the connector 303 penetrates through the through hole 309 of the grounding block 302.

In this embodiment, the number of the through holes 309 of the ground pad 302 is not limited.

Wherein, the grounding block 302 can be screwed with the cavity 306 by the screw 301. It should be noted that the connection between the grounding block 302 and the cavity 306 is not limited to a threaded connection, but may be a pin connection, a key connection, or other detachable connection. In addition, if the grounding block 302 is not required to be detachable from the cavity 306, a non-detachable connection mode may be adopted, and the invention is not limited herein.

In this embodiment, the connector 303 is fixedly connected to the cavity 306 through a fixing member 305, the fixing member 305 has a through hole 308, and the connector 303 passes through the through hole 308 of the fixing member 305 and is connected to the fixing member 305. The number of the through holes 308 is not limited.

The connection of the connector 303 and the fixing member 305 may be a screw connection, and the inside of the through hole 308 of the fixing member 305 may be provided with a screw, so that the connector 303 may be screw-connected with the fixing member 305 through the screw of the through hole 308.

In addition, the connection between the connector 303 and the fixing member 305 may also be a pin connection, a key connection, a welding, a riveting or other connection methods, which are not limited herein.

The fixing member 305 may be a plate-shaped fixing plate, the through hole 308 is disposed on the fixing plate, the connector 303 passes through the through hole of the fixing plate and is connected to the fixing plate, and the fixing plate may be fixedly connected to the cavity 306 by the connecting member 304, so that the connector 303 is fixedly connected to the cavity 306.

It should be noted that the connecting member 304 may be a screw, and the fixing plate is screwed with the cavity 306. The connecting member 304 may also be a rivet, and the connection of the fixing plate to the cavity 306 is a rivet connection. The connecting member 304 may also be a pin or other connecting member, and the specific type of connecting member is not limited.

In addition, the fixing plate may be connected to the cavity 306 by welding instead of being connected to the cavity 306 by the connecting member 304, and the connection manner of the fixing plate to the cavity 306 is not limited.

In this embodiment, the fixing member 305 may also be a fixing post as shown in fig. 4, the fixing post has a through hole 308, the connector 303 passes through the through hole 308 of the fixing post and is connected to the fixing post, and the fixing post may be fixedly connected to the cavity 306 through the connecting member 304, which is equivalent to the connector 303 being fixedly connected to the cavity 306.

Wherein, the side wall of the fixing column is provided with an opening 401, and then the cable of the connector 304 can pass through the opening 401 to be connected with the part in the cavity 306.

When the fixing post is cylindrical, the inner side of the through hole 308 of the fixing post may be threaded, and the connector 304 may be threaded with the fixing post.

The fixing column can also be a square column, and the connector 303 passes through the through hole 308 of the fixing column and is connected with the fixing column, and the connection mode can be welding, bonding or other connection modes.

The fixed column may be composed of a plurality of sub-fixed columns, and the fixed column shown in fig. 4 is composed of 2 sub-fixed columns 402. The number of the sub-fixing posts is not limited, and may be any number.

In this embodiment, the fixing member and the cavity may be integrally formed or may be separately formed. When the fixing member and the cavity are formed separately, the fixing member and the cavity may be connected in any connection manner, including but not limited to a threaded connection, a welding connection, a rivet connection, a pin connection, and the like, and the specific details are not limited herein.

In the embodiment of the present application, the connection between the connector and the cavity may be indirect connection or direct connection, where the direct connection refers to the connection between the connector and the cavity in direct contact and connected to the cavity, for example, the connector may be directly welded to the cavity, or the connector may be connected to the cavity through a screw or a pin, and the specific direct connection mode is not limited, and the connection mode between the connector and the cavity is not limited.

In the embodiment of the application, if the duplexer has been completely assembled, when the debugging of the inner cavity index of the duplexer and the PCBA coupling index of the circuit board is required to be carried out, the grounding block can be moved away, and because the connector can penetrate through the through hole of the grounding block, the movement of the grounding block cannot be limited by the connector, the grounding block can be completely moved away, and then the PCB cover plate can be conveniently detached.

If the inner cavity index of the duplexer and the coupling index of the PCBA of the circuit board need to be debugged in the assembly process of the duplexer, the assembly method of the duplexer can be that the PCBA of the circuit board is firstly installed on the duplexer, then a PCB cover plate is installed on the PCBA of the circuit board, and the connector is fixed on the cavity of the duplexer. After the debugging of the inner cavity index of the duplexer and the PCBA coupling index of the circuit board is finished, the grounding block is fixedly connected to the cavity.

If the duplexer further comprises a fixing piece and the cavity are formed in a split mode, after the PCB cover plate is installed on the PCBA, the connector needs to penetrate through the through hole in the fixing piece to be connected with the fixing piece, and the fixing piece connected with the connector is fixed above the cavity.

Claims

1. A duplexer, characterized by comprising: the connector, the cavity, the grounding block, the PCB cover plate and the circuit board PCBA;

the circuit board PCBA is arranged in the cavity;

the PCB cover plate covers the PCBA;

2. The duplexer of claim 1, wherein the connector is fixedly connected to the cavity by a fixing member; specifically, the method comprises the following steps:

3. The duplexer of claim 2, wherein the fixing member is a fixing post having a through hole and fixed on the cavity.

4. The duplexer of claim 3, wherein an opening is provided on a sidewall of the fixed column, and a cable of the connector passes through the opening to be connected with a part in the cavity.

5. The duplexer of claim 3, wherein the fixed post is cylindrical, and the connector is threaded with the fixed post.

6. The duplexer of claim 2, wherein the fixing member is a fixing plate;

7. The duplexer of claim 6, wherein the connection members are screws.

8. The duplexer of claim 2, wherein the fixing member is formed separately from the cavity, and the fixing member is connected to the cavity by a connection member.

9. The duplexer of claim 2, wherein the fixing member is integrally formed with the cavity.

10. The duplexer of claim 1, wherein the ground block is fixedly connected to the cavity by screws.