CN214754521U

CN214754521U - Install in inside high reliable filtering module of miniature aviation connector

Info

Publication number: CN214754521U
Application number: CN202121403622.0U
Authority: CN
Inventors: 王玉; 邵源; 魏天锋
Original assignee: Zhentong Electronics Co ltd Of Tianjin Communication And Broadcasting Group Co ltd
Current assignee: Tianjin Zhentong Electronics Co ltd
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2021-11-16
Anticipated expiration: 2031-06-23

Abstract

The utility model belongs to the technical field of the aviation connector, especially, install in inside high reliable filter module of miniature aviation connector, including aviation connector plug head, the pin surface activity of aviation connector plug head cup jointed with the printing board of aviation connector plug head looks adaptation. The invention has the characteristics of convenient operation, strong production, low cost, strong environmental adaptability, high reliability, easy maintenance and the like, adopts the classic RC circuit as the filter circuit in the system design, can select the capacitance resistance value according to the actual situation, is convenient to change when being suitable for different products, and ensures the filter effect. Compared with the scheme of plug-in components resistance-capacitance in the past, this scheme adopts the paster device, and the uniformity is high, and is lower to production assembly personnel's professional requirement, and production operation is more convenient, and is fixed with the help of aviation connector socket simultaneously, and shock-resistant vibration ability is stronger under the adverse circumstances, and the reliability is higher, and it is also more convenient to maintain.

Description

Install in inside high reliable filtering module of miniature aviation connector

Technical Field

The utility model relates to an aviation connector technical field especially relates to an install in inside high reliable filter module of miniature aviation connector.

Background

The terminal and the multifunctional handle product can be matched with channel equipment such as a special radio station and the like to realize the voice communication function. In order to ensure the communication capability of channel equipment such as a special radio station and the like in a severe environment, the channel transmission power of the channel equipment is generally designed to be larger than that of a common civil radio station and the like, and the radiation and conducted interference of the channel equipment is stronger. To ensure that the terminal and the multi-function handle product have good small-signal voice anti-interference capability under such strong radiation, multi-stage filtering is required inside the machine and at the communication cable close to the channel device. Push-pull plugs are generally adopted in terminal and multifunctional handle products, and the plugs generally have extremely small internal space, and it is quite difficult to add a filter module in the extremely small internal space. In the past, a plug-in resistor-capacitor RC filter circuit is mostly adopted to solve the problem, but the plug-in resistor-capacitor RC filter circuit is large in overall dimension and large in welding spot, the condition of welding spot short circuit is easily caused in the actual use process, once the short circuit condition occurs, the functions of equipment cannot be normally realized if the short circuit condition occurs, peripheral other equipment can be damaged if the short circuit condition occurs, and the problem that how to install a proper filter module in a plug is a practical problem in a terminal and multifunctional handle production factory is solved.

SUMMERY OF THE UTILITY MODEL

Based on the technical problem of the limitation of current aviation connector filtering module installation, the utility model provides an install in the inside high reliable filtering module of miniature aviation connector.

The utility model provides a high-reliability filtering module installed inside a miniature aviation connector, which comprises an aviation connector plug head part, wherein a printed board matched with the aviation connector plug head part is movably sleeved on the outer surface of a pin of the aviation connector plug head part;

and the surface of the printed board is provided with a filter circuit in signal connection with the head of the aviation connector plug, and the filter circuit filters noise emitted by audio channel equipment.

Preferably, the printed board has a perfect circle shape with a diameter of 10mm-15mm and a thickness of 0.4mm-1 mm;

it is preferable that the printed board 2 has a perfect circle shape with a diameter of 12.2mm and a thickness of 0.6 mm.

Preferably, the surface of the printed board is provided with round holes with the number equal to that of pins at the head of the aviation connector plug, wherein three of the round holes are metalized holes.

The metallised holes are preferably 7.74 mm.

Preferably, the filter circuit is an RC filter circuit, the model of the electronic component in the filter circuit is 0603 packaged chip resistor and capacitor, and the resistance-capacitance values are 5.1K Ω and 2200 pF/16V.

Through the technical scheme, the RC filter circuit is included between the MIC and the GND of the power supply port of the radio station, so that strong radiation and conducted interference of the emission noise of the channel equipment to the small audio signal can be effectively filtered.

The utility model provides a beneficial effect does:

compared with the prior art, the invention has the characteristics of convenient operation, strong production, low cost, strong environmental adaptability, high reliability, easy maintenance and the like, adopts the classic RC circuit as the filter circuit in the system design, can select the resistance-capacitance value according to the actual situation, is convenient to change when being suitable for different products, and ensures the filter effect. Compared with the scheme of plug-in components resistance-capacitance in the past, this scheme adopts the paster device, and the uniformity is high, and is lower to production assembly personnel's professional requirement, and production operation is more convenient, and is fixed with the help of aviation connector socket simultaneously, and shock-resistant vibration ability is stronger under the adverse circumstances, and the reliability is higher, and it is also more convenient to maintain.

Drawings

Fig. 1 is a schematic diagram of a filter circuit of a highly reliable filter module installed inside a miniature aviation connector according to the present invention;

fig. 2 is a top view of a printed board structure of a highly reliable filtering module installed inside a miniature aviation connector according to the present invention;

fig. 3 is a perspective view of a head structure of an aviation connector plug of a highly reliable filter module installed inside a miniature aviation connector according to the present invention;

fig. 4 is an installation diagram of a filter circuit in a printed board of a highly reliable filter module installed inside a miniature aviation connector according to the present invention;

fig. 5 is a pin connection and installation diagram of a filter circuit of a highly reliable filter module installed inside a miniature aviation connector according to the present invention;

fig. 6 is a TOP _ bulk and pad connection diagram of a filter circuit of a highly reliable filter module installed inside a miniature aviation connector according to the present invention;

fig. 7 is a connection diagram of TOP _ inch and via in the filter circuit of the highly reliable filter module installed inside the miniature aviation connector according to the present invention;

fig. 8 is the utility model provides an install BOTTOM _ etch, pad and via connection diagram in the filter circuit of the inside high reliable filter module of miniature aviation connector.

In the figure: 1. an aircraft connector plug head; 11. an aviation connector plug tail; 2. printing a board; 21. a filter circuit; 211. a circular hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-8, a high-reliability filtering module installed inside a miniature aviation connector comprises an aviation connector plug head part 1, wherein a printed board 2 matched with the aviation connector plug head part 1 is movably sleeved on the outer surface of a pin of the aviation connector plug head part 1;

furthermore, the printed board 2 is in a right circular shape with the diameter of 10mm-15mm, and the thickness of the printed board is 0.4mm-1 mm; most preferably, the printed board 2 has a perfect circle shape with a diameter of 12.2mm and a thickness of 0.6 mm.

Furthermore, the surface of the printed board 2 is provided with round holes 211 with the same number as the pins of the head 1 of the aviation connector, wherein A, B, C three round holes are metallized holes. The metallised holes are most preferably 7.74 mm.

The surface of the printed board 2 is provided with a filter circuit 21 in signal connection with the head part 1 of the aviation connector plug, and the filter circuit 21 filters noise emitted by the audio channel equipment.

Furthermore, the filter circuit 21 is an RC filter circuit, the model of the electronic component in the filter circuit 21 is 0603 packaged chip resistor and capacitor, and the resistance-capacitance values are 5.1K Ω and 2200 pF/16V; the RC filter circuit is added between the MIC and the GND of the power supply port of the radio station, so that strong radiation and conduction interference of the emission noise of the channel equipment to the small audio signal can be effectively filtered.

After the installation device is realized, the printed board 2 with the filter circuit 21 is inserted and installed to the head part 1 of the aviation connector plug, and then the tail part 11 of the aviation connector plug matched with the head part 1 of the aviation connector plug is connected and installed.

The specific operation is realized as follows:

the RC filter circuit is connected between the MIC and the GND of the power supply port of the radio station, so that strong radiation and conduction interference of the emission noise of the channel equipment to the small audio signal can be effectively filtered.

As shown in fig. 2-3, the profile height of the printed board 2 matches the internal space structure size of the plug, and when the connector is installed, the filter circuit 21 is installed inside the plug head 1 of the aviation connector as shown in fig. 3, and three pins A, B, C on the plug are welded and fixed with the filter circuit 21. And carrying out conventional electric fitting operation on other pins of the plug head part 1 of the aviation connector after the installation is finished.

As shown in fig. 4, by using the scheme of the filter circuit 21, the cavity space at the tail part of the plug is liberated to the maximum extent, the situation that a large number of cables and devices are blocked in the tail part 11 of the plug of the aircraft connector when the plug capacitance-reducing device is used in the prior art is thoroughly avoided, and the occurrence of a short circuit situation is fundamentally avoided.

As shown in fig. 5, the RC filter circuit of the filter circuit 21 spans between the audio signal MIC and GND outputted from the handle to the radio station, and the maximum filtering channel device emits strong radiation and conduction interference of noise to the audio small signal.

As shown in fig. 6-8, the PCB printed board of the filter circuit 21 comprises two layers. FIG. 6 shows the top layer silk, pad, via, and etch, and FIG. 8 shows the bottom layer etch, pad, and via.

The invention can be applied to various voice communication equipment using the miniature aviation connector, and has simple installation and operation; the paster device and the miniature printed board unit are adopted, so that the purchase is convenient and the cost is low; the filter is arranged at the nearest interference source end, and the filtering effect is best; the filter is small in size and firm and reliable in installation with the plug, and the failure rate and the later maintenance cost are greatly reduced. According to the design scheme, the filtering scheme suitable for other connectors is easily expanded, and the popularization is strong.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an install inside high reliable filtering module in miniature aviation connector, includes aviation connector plug head (1), its characterized in that: the outer surface of a pin of the head part (1) of the aviation connector plug is movably sleeved with a printed board (2) matched with the head part (1) of the aviation connector plug;

the surface of the printed board (2) is provided with a filter circuit (21) in signal connection with the head part (1) of the aviation connector plug, and the filter circuit (21) filters noise emitted by audio channel equipment.

2. The high-reliability filter module installed inside a miniature aerospace connector according to claim 1, wherein: the diameter of the printed board (2) is 10mm-15mm, and the thickness of the printed board is 0.4mm-1 mm.

3. The high-reliability filter module installed inside a miniature aerospace connector according to claim 2, wherein: round holes (211) with the same number as the pins of the head part (1) of the aviation connector are formed in the surface of the printed board (2), and three of the round holes are metalized holes.

4. The high-reliability filter module installed inside a miniature aerospace connector according to claim 1, wherein: the filter circuit (21) is an RC filter circuit, the model of an electronic component in the filter circuit (21) is 0603 packaging patch resistor and capacitor, and the resistance-capacitance value is 5.1K omega and 2200 pF/16V.