CN112051648A - Novel multichannel analog light receiving and transmitting module - Google Patents

Abstract

The application relates to a novel multichannel analog light receiving and transmitting module. The novel multichannel analog light transceiver module comprises a first shell, a second shell and a circuit board assembly. The circuit board assembly is disposed between the first housing and the second housing. The circuit board assembly includes an electronic device and an optical device. And the second shell is provided with a radio frequency power supply multiplexing interface. The radio frequency interface and the power interface are integrated in a standard radio frequency power supply multiplexing interface and are arranged up and down, so that the novel multi-channel analog light receiving and transmitting module is simpler in appearance structure, smaller in size and higher in integration level. The radio frequency power supply multiplexing interface can not accumulate dust, improves the plugging performance, reduces the plugging operation frequency in practical application, and can prolong the service life.

Description

Novel multichannel analog light receiving and transmitting module

Technical Field

The application relates to the field of photoelectricity, in particular to a novel multichannel analog light receiving and transmitting module.

Background

In the prior art, an optical transceiver module generally comprises an optoelectronic device, a functional circuit, an optical interface, a radio frequency interface, and the like, wherein the optoelectronic device comprises two paths of transmitting and receiving. The optical transceiver module may be divided into: 1 × 9, SFP, SFF, GBIC, XENPAK, XFP, etc. However, in the existing optical transceiver module, there are many various functional interfaces of the novel multi-channel analog optical transceiver module, which makes the structure of the optical transceiver module complex and the volume large.

Disclosure of Invention

Therefore, in order to solve the problems, a novel multi-channel analog optical transceiver module is provided.

A novel multi-channel analog optical transceiver module, comprising:

a first housing and a second housing;

the circuit board assembly is arranged between the first shell and the second shell and comprises an electronic device and an optical device, and the second shell is provided with a radio frequency power supply multiplexing interface.

In one embodiment, the second shell is further provided with a first mounting hole, and the radio frequency power multiplexing interface is mounted and adapted to the application interface through the first mounting hole.

In one embodiment, the first housing and the second housing are respectively provided with an isolation cavity, and when the first housing and the second housing are oppositely buckled on two sides of the circuit board assembly, the isolation cavities of the first housing and the second housing respectively accommodate the electronic device and the optical device and isolate the electronic device from the optical device.

In one embodiment, the optical device further comprises a shielding ring disposed in the first housing or the second housing for shielding an optical path between the optical devices.

In one embodiment, when the first housing and the second housing are engaged with each other, an optical interface is formed at a portion where the first housing and the second housing are in contact, and the optical interface is adapted to the LC connector.

In one embodiment, the first housing and the second housing are provided with corresponding positioning grooves for positioning the optical interface when the first housing and the second housing are engaged with each other.

In one embodiment, the optical device further comprises an optical device, two bosses are arranged on opposite side walls of the optical device, and when the optical device is installed between the first shell and the second shell, the two bosses are respectively embedded into the positioning groove of the first shell and the positioning groove of the second shell.

In one embodiment, the first housing is provided with a fixing structure for preventing the LC connector inserted into the optical interface from falling off.

In one embodiment, the LC connector is further included, an elastic buckle is arranged at one end of the LC connector inserted into the optical interface, the fixing structure includes a square hole structure arranged on the first housing and located on the optical interface, and when the LC connector is inserted into the optical interface, the elastic buckle is embedded into the square hole structure.

In one embodiment, the second housing is further provided with a second mounting hole, and the novel multichannel analog optical transceiver module is connected with a system through the second mounting hole;

the first shell and the second shell are respectively provided with fixing holes correspondingly, the novel multichannel analog light transceiver module further comprises fixing screws, and the first shell and the second shell are connected through the fixing screws penetrating through the fixing holes;

thermal pads are disposed between the first housing and the circuit board assembly, and between the circuit board assembly and the second housing.

The embodiment of the application provides a novel multichannel analog light receiving and transmitting module. The novel multichannel analog light transceiver module comprises a first shell, a second shell and a circuit board assembly. The circuit board assembly is disposed between the first housing and the second housing. The circuit board assembly includes an electronic device and an optical device. And the second shell is provided with a radio frequency power supply multiplexing interface. The radio frequency interface and the power interface are integrated in a standard radio frequency power supply multiplexing interface and are arranged up and down, so that the novel multi-channel analog light receiving and transmitting module is simpler in appearance structure, smaller in size and higher in integration level. The radio frequency power supply multiplexing interface can not accumulate dust, improves the plugging performance, reduces the plugging operation frequency in practical application, and can prolong the service life.

Description of the drawings:

fig. 1 is a diagram illustrating a novel multi-channel analog optical transceiver module according to an embodiment of the present application;

fig. 2 is an exploded view of a novel multi-channel analog optical transceiver module according to an embodiment of the present application;

fig. 3 is a bottom view of the novel multichannel analog optical transceiver module according to an embodiment of the present application;

fig. 4 is a schematic diagram of a first housing of a novel multi-channel analog optical transceiver module according to an embodiment of the present application;

fig. 5 is a cross-sectional view of a novel multi-channel analog optical transceiver module according to an embodiment of the present application;

description of reference numerals:

first housing 1

Second housing 4

Circuit board assembly 3

Shielding ring 9

Optical interface 5

Locating groove 10

Fixed structure 11

Radio frequency power supply multiplexing interface 6

First mounting hole 8

Second mounting hole 7

Fixing screw 2

LC connector 12

And an optical device 13.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and intended to be used for explaining the present application and should not be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; the two elements can be directly connected or indirectly connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly contact but through another feature in between. Also, a first feature being "on," "above" and "over" a second feature includes the first feature being directly on and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1-3, an embodiment of the present application provides a novel multi-channel analog optical transceiver module. The novel multichannel analog light transceiver module comprises a first shell 1, a second shell 4 and a circuit board assembly 3. The circuit board assembly 3 is disposed between the first housing 1 and the second housing 4. The circuit board assembly 3 includes electronic devices and optical devices. The second shell 4 is provided with a radio frequency power supply multiplexing interface. In one embodiment, the rf power multiplexing interface may be a board-to-board connector. The board-to-board connector may be a standard Samtec board-to-board connector.

Referring to fig. 3, the second housing 4 is provided with a rf power multiplexing interface 6. The rf multiplexing interface 6 may be disposed on a side of the second housing 4 away from the first housing 1. Namely, the radio frequency power supply multiplexing interface 6 is arranged at the bottom of the novel multichannel analog light transceiver module. The radio frequency interface and the power interface are integrated in a standard radio frequency power supply multiplexing interface 6 and are installed up and down, namely, the standard radio frequency power supply multiplexing interface 6 is of a male-female connector up-down plug-in structure, and the radio frequency power supply multiplexing interface has the advantage of saving space. Moreover, the radio frequency interface and the power interface are integrated in a standard radio frequency power multiplexing interface 6, so that the appearance structure of the novel multi-channel analog light transceiver module is simpler, and the integration level is improved.

The novel multi-channel analog light receiving and transmitting module is simpler in appearance structure, and the integration level is improved. Moreover, the plugging performance is improved, the plugging operation frequency in practical application is reduced, and the service life can be prolonged. Furthermore, in the structure of the male and female connectors, the male connector is arranged at the bottom of the novel multichannel analog light transceiver module and wrapped by the second shell 4, and the male and female connectors are wrapped by the second shell 4 after being plugged and are not exposed in the environment, so that dust is not easily accumulated on the radio frequency power supply multiplexing interface 6.

In one embodiment, the second housing 4 is further provided with a first mounting hole 8. The radio frequency power supply multiplexing interface 6 is installed and adapted with an application interface through the first installation hole 8. The number of the first mounting holes 8 may be two, and the two first mounting holes are correspondingly arranged on one side of the second housing 4 far away from the first housing 1. The first mounting hole 8 may be a pin hole. When the novel multichannel analog optical transceiver module is connected with the application interface, the first mounting hole 8 can be used as a docking standard, so that the purpose of rapidly docking the novel multichannel analog optical transceiver module with the application interface can be achieved. The application interface can be an application module which is connected with the novel multichannel analog light receiving and transmitting module and is provided with a radio frequency power supply multiplexing connector female head. The application module is correspondingly provided with a pin port. The first mounting hole 8 and the corresponding pin port of the application module can be in a pin connection structure, can play a role in guiding, and is beneficial to plugging of a connector.

In one embodiment, the first housing 1 and the second housing 4 are each provided with an isolation cavity. When the first housing 1 and the second housing 4 are relatively buckled on two sides of the circuit board assembly 3, the isolation cavities of the first housing 1 and the second housing 4 respectively accommodate the electronic device and the optical device and isolate the electronic device from the optical device.

The first housing 1 and the second housing 4 may be provided correspondingly. The novel multichannel analog optical transceiver module can be formed by clamping the circuit board assembly 3 between the first shell 1 and the second shell 4. The circuit board assembly 3 may include a circuit board, and the electronic device and the optical device may be respectively integrated with the circuit board. The circuit board assembly 3 can realize the conversion function of optical signals and electric signals. The electronic device and the optical device may be soldered to a circuit board. The isolation cavity of the first shell 1 and the isolation cavity of the second shell 4 form an accommodating cavity with the circuit board when the first shell 1 and the second shell 4 are mutually buckled. The electronic device and the optical device may be respectively located in the accommodating cavities, i.e. accommodated in the isolation cavity. It is understood that the material forming the isolation cavity may be a material having a shielding effect against electromagnetic. Through keep apart the cavity, can with electron device with the optical device is kept apart, avoids electron device with the optical device influences each other, in order to improve novel multichannel analog light transceiver module's working property.

Referring to fig. 4, in an embodiment, the circuit board may be fixed between the first housing 1 and the second housing 4 by a fixing structure such as a screw, and the circuit board and the first housing 1 together enclose a sealed isolation cavity, so as to shield radio frequency signal interference of each optical path.

Referring again to fig. 2, the electronic components on the lower surface of the circuit board (PCB) can be wrapped in the whole large cavity of the base (the second housing 4). And screws are arranged on the circuit board to enable the lower surface of the circuit board to be tightly attached to the base, and sealant is coated on the circuit board. The upper surface of the circuit board is provided with two receiving and two sending 4 radio frequency channels and 4 light paths corresponding to the optical devices.

Referring to fig. 4 and 5, 4 cavities, i.e. 4 opposite cavities, are formed at corresponding positions of the cover plate (the first housing 1), and these cavities, the end surface of the optical device and the shielding ring 9 form 4 opposite shielding cavities, so that interference of signals can be prevented. And a sealant is coated at the contact position of the cover plate and the upper surface of the PCB.

In one embodiment, the novel multi-channel analog optical transceiver module further comprises a shielding ring 9. The shielding ring 9 is made of a glass silver conductive material, has silica gel elasticity, and can be tightly filled in the gap between the first shell 1 and the second shell 4 and the optical device to form a good conductive whole, so that the effect of shielding signal interference is achieved. The shielding ring 9 is disposed on the first housing 1 or the second housing 4. The shielding ring 9 is used to shield the radio frequency channel between the optical devices. The multichannel optical device consists of multiple receiving and transmitting channels, and analog light is converted into various radio frequency signal channels through transmitting and receiving. The shielding ring 9 is sleeved on the optical device channel shells, and can fill gaps between the first shell 1 and the second shell 4 and the optical device, so that the shielding ring plays a role in shielding interference and crosstalk of radio frequency signals of the optical device. A PCB is arranged between the base and the cover plate, and the PCB is clamped in the middle by coating a sealant and locking by a screw. Each radio frequency circuit on the PCB is divided into independent spaces by a cavity hollowed out by the inner wall of the cover plate, so that signal interference and crosstalk are prevented.

In one embodiment, when the first housing 1 and the second housing 4 are buckled with each other, an optical interface 5 is formed at a contact portion of the first housing 1 and the second housing 4, and the optical interface 5 is adapted to the LC connector. It is understood that the opening edge of the first housing 1 may have a structure of a part of the optical interface 5, and the opening edge of the second housing 4 may have a structure of a part of the optical interface 5. The opening of the first shell 1 and the opening edge of the second shell 4 are spliced to form the optical interface 5. The optical interface 5 can be plugged into the LC connector. The optical interface 5 is directly formed by machining the first shell 1 and the second shell 4, so that the size of the novel multi-channel analog optical transceiver module can be greatly reduced, and the cost is saved. The optical interface 5 with the tail fiber and the LC connector is changed into the optical interface 5 which can be adaptive to the standard LC connector for insertion, an intermediate transfer flange is not needed during application, an intermediate transfer device is reduced, the position of the coiled fiber is not needed to be reserved, the complex procedures of assembling various parts are reduced, the application space is saved, the application is more miniaturized, and the installation is diversified.

In one embodiment, the first housing 1 and the second housing 4 are provided with corresponding positioning slots 10. The positioning slot 10 is used for positioning the optical interface 5 when the first casing 1 and the second casing 4 are buckled relatively. When the first housing 1 and the second housing 4 are buckled with each other, the alignment may be performed with reference to the positioning grooves 10 of the first housing 1 and the second housing 4, so as to ensure that the optical interface 5 formed by the first housing 1 and the second housing 4 meets the standard of being capable of being plugged into and pulled out from the LC connector.

Referring to fig. 5, in one embodiment, an optical device 13 may be further included. Two bosses may be disposed on opposite side walls of the optical device 13, and one positioning groove 10 may be disposed on each of the first casing 1 and the second casing 4. When the optical device 13 is installed between the first casing 1 and the second casing 4, the two bosses can respectively enter the positioning groove 10 of the first casing and the positioning groove 10 of the second casing 4, so that the spatial position of the optical port of the optical device 13 can be ensured.

In one embodiment, the first housing 1 is provided with a fixing structure 11. The fixing structure 11 is used to prevent the LC connector 12 inserted into the optical interface 5 from falling off. The fixing structure 11 may be a two-square-hole structure.

In one embodiment, the LC connector 12 may also be included. LC connects 12 to insert the one end of optical interface 5 is provided with elasticity and detains, fixed knot constructs 11 including set up in first casing 1 is located optical interface 5's square hole structure, LC connects 12 to insert during optical interface 5, elasticity is detained the embedding square hole structure is in order to prevent LC connects 12 drops.

In one embodiment, the second housing 4 is further provided with a second mounting hole 7. The novel multi-channel analog light transceiver module is connected with a system through the second mounting hole 7. The number of the second mounting holes 7 may be eight, and the eight mounting holes are evenly arranged at four corners of the second casing 4. The second mounting hole 7 may be a threaded hole. The novel multi-channel analog light transceiver module can be butted with the system through the matching of screws and the threaded holes.

In one embodiment, thermal pads are disposed between the first housing 1 and the circuit board assembly 3, and between the circuit board assembly 3 and the second housing 4. The two sides of the circuit board assembly 3 are respectively provided with the heat conducting pads, so that heat can be conveniently and timely discharged, and the novel multi-channel analog light receiving and transmitting module is guaranteed to normally work. In one embodiment, the thermal pad may be a thermally conductive silicone pad.

In one embodiment, the first housing 1 and the second housing 4 are respectively provided with fixing holes. The novel multichannel analog light transceiver module further comprises a fixing screw 2. The first housing 1 and the second housing 4 are connected by the fixing screw 2 passing through the fixing hole. The first housing 1 may have a rectangular structure. Four corners of the rectangular structure may form a stepped structure, and each of the stepped structures may be provided with one of the fixing holes. The second housing 4 may also be provided with an opening at a position corresponding to the fixing hole. The first housing 1 and the second housing 4 can be connected by passing the fixing screw 2 through the fixing hole and the second through hole. Therefore, the connection among the first housing 1, the circuit board assembly 3 and the second housing 4 is tighter, and vibration resistance is improved.

The novel multi-channel analog light receiving and transmitting module is provided with the optical interface 5, long tail fibers with optical connectors are omitted, and the installation and the use are flexible. The novel multichannel analog light receiving and transmitting module is integrated with the pluggable radio frequency power supply multiplexing interface 6 and the pluggable standard LC optical connector optical interface 5, the integration level is high, and the packaging, the transportation and the system use are very convenient. The structure that first casing 1, second casing 4 and circuit board subassembly 3 constitute has dustproof ability, and the anti vibration performance obtains great improvement, can be in the moving system and relatively harsh environment application.

The foregoing is only a preferred embodiment of the present application and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the present application and these modifications should also be considered as the protection scope of the present application.

Claims (10)

1. A novel multichannel analog optical transceiver module, comprising:

a first housing and a second housing;

the circuit board assembly is arranged between the first shell and the second shell and comprises an electronic device and an optical device, and the second shell is provided with a radio frequency power supply multiplexing interface.

2. The novel multichannel analog optical transceiver module as claimed in claim 1, wherein the second housing further has a first mounting hole, and the rf power multiplexing interface is adapted to the application interface through the first mounting hole.

3. The novel multichannel analog optical transceiver module as claimed in claim 1, wherein the first housing and the second housing are respectively provided with an isolation cavity, and when the first housing and the second housing are relatively fastened to two sides of the circuit board assembly, the isolation cavities of the first housing and the second housing respectively accommodate and isolate the electronic device and the optical device.

4. The novel multichannel analog optical transceiver module as claimed in claim 2, further comprising a shielding ring disposed on the first housing or the second housing for shielding the optical path between the optical devices.

5. The novel multichannel analog optical transceiver module as claimed in claim 1, wherein when said first housing and said second housing are engaged with each other, an optical interface is formed at a portion where said first housing and said second housing are in contact, and said optical interface is adapted to said LC connector.

6. The novel multichannel analog optical transceiver module as claimed in claim 5, wherein said first housing and said second housing are provided with corresponding positioning slots for positioning said optical interface when said first housing and said second housing are mated.

7. The novel multichannel analog optical transceiver module as claimed in claim 6, further comprising an optical device, wherein two bosses are disposed on opposite side walls of the optical device, and when the optical device is installed between the first housing and the second housing, the two bosses are respectively inserted into the positioning groove of the first housing and the positioning groove of the second housing.

8. The novel multichannel analog optical transceiver module as claimed in claim 5, characterized in that said first housing is provided with a fixing structure for preventing said LC connectors inserted into said optical interface from falling off.

9. The novel multichannel analog optical transceiver module as claimed in claim 8, further comprising the LC connector, wherein an end of the LC connector inserted into the optical interface is provided with an elastic buckle, the fixing structure includes a square hole structure disposed on the first housing and located at the optical interface, and when the LC connector is inserted into the optical interface, the elastic buckle is embedded into the square hole structure.

10. The novel multichannel analog optical transceiver module as claimed in claim 1, wherein the second housing further has a second mounting hole, and the novel multichannel analog optical transceiver module is connected to the system through the second mounting hole;

the first shell and the second shell are respectively provided with fixing holes correspondingly, the novel multichannel analog light transceiver module further comprises fixing screws, and the first shell and the second shell are connected through the fixing screws penetrating through the fixing holes;

thermal pads are disposed between the first housing and the circuit board assembly, and between the circuit board assembly and the second housing.

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