Serial port integrated filter

Abstract

The utility model discloses a serial port integrated filter, comprising a filter and a conductive block, the filter is provided with a plurality of interfaces, the filter is provided with a coaxial cable male port and a coaxial cable female port at one side of the interfaces, two sides of the filter are connected with wiring blocks, and one side of each wiring block is connected with a plurality of wiring heads for penetration of leads. The wiring block is internally provided with a wire fixing assembly, the wire fixing assembly comprises a threaded cylinder, the conductive blocks are arranged in the wiring block, the wire fixing assembly is arranged in the wiring block, the bolt is used for driving the insulating block to move downwards to press the wire, and the connection mode greatly enhances the stability of connection between the wire and the filter; even in complex environments of vibration, mechanical stress and the like, the wire can be firmly fixed in the wiring block, the condition that the wire is separated from the filter due to shaking or pulling force is effectively avoided, stable communication of equipment is guaranteed, the risk of communication interruption is reduced, and normal work of the equipment is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to filter technical field, concretely relates to a serial port integrated filter. BACKGROUND

[0002] In today's digital era, as a basic and widely used data transmission method, serial communication plays a key role in many fields, and in order to ensure the efficiency and stability of serial communication, serial port integrated filter emerges as the times require, which can effectively filter out noise and interference signals in the communication line, significantly improve signal quality, and multiple interfaces can meet various needs, thereby ensuring the accuracy and reliability of data transmission.

[0003] The existing serial port integrated filter needs to transmit data through wires, and the wire and pin connection mode of the filter mostly adopts welding process. Although the welded pin can realize the electrical connection of the filter and the external wire to a certain extent, in actual use scene, the environment of the device is often complex and changeable, and factors such as vibration and mechanical stress often exist. When the wire body is shaken or subjected to tension, the welded part of the wire and the filter is easy to separate from each other. Once the wire and the filter are separated, it will not only cause communication interruption, but also make the device unable to work normally, thereby affecting normal use. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a serial port integrated filter to solve the problems in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme: a serial port integrated filter, comprising:

[0006] The filter is provided with a plurality of interfaces, a coaxial cable male connector and a coaxial cable female connector are arranged on the filter and located on one side of the interface, a wiring block is connected to both sides of the filter, a plurality of wire passing heads for passing in wires are connected to one side of the wiring block, a wire fixing assembly for fixing the passing in wires is arranged in the wiring block, the bolt of the wire fixing assembly drives the insulating block to move downward, so that the moving insulating block contacts with the wire and fixes the wire in the wiring block by pressing;

[0007] The conductive block is provided with a plurality of groups and is arranged in the wiring block, which is used for electrical connection with the passing in wire.

[0008] Preferably, the wire fixing assembly comprises a threaded cylinder, the threaded cylinder is provided with a plurality of groups and is arranged in the wiring block, the bolt is provided with a plurality of groups and is threadedly connected in the threaded cylinder, the insulating block is provided with a plurality of groups and is arranged in the wiring block, and one end of the bolt in the wiring block is rotationally connected with the insulating block.

[0009] Preferably, a plurality of guide grooves are arranged in the terminal block, and a guide rod is slidably connected in the guide grooves.

[0010] Preferably, a plurality of conductive pieces are arranged in the terminal block, and the conductive block is electrically connected with the conductive pieces.

[0011] Preferably, a plurality of conductive pieces are arranged in the terminal block, and the conductive block is electrically connected with the conductive pieces.

[0012] Preferably, a plurality of fixing ears are arranged on the surface of the filter.

[0013] Preferably, a dustproof net is arranged on one side of the filter.

[0014] Preferably, the plurality of interfaces are DB9 pin type interface, DB9 hole type interface, VGA pin type interface, VGA hole type interface, DB25 pin type interface and DB25 hole type interface.

[0015] Compared with the prior art, the filter has the advantages that:

[0016] (1) The wire fixing assembly is arranged in the terminal block, the insulating block is driven to move downward by the bolt to compress the wire, the connection mode greatly enhances the stability of the connection between the wire and the filter, even in a complex environment such as vibration and mechanical stress, the wire can be firmly fixed in the terminal block, the situation that the wire is separated from the filter due to shaking or tension is effectively avoided, the stable communication of the equipment is ensured, the risk of communication interruption is reduced, and normal work of the equipment is ensured.

[0017] (2) The filter is provided with a plurality of interfaces, including DB9 pin type interface, DB9 hole type interface, VGA pin type interface, VGA hole type interface, DB25 pin type interface and DB25 hole type interface, the rich interface types can meet the connection requirements of different equipment, the universality and adaptability of the filter are improved, whether it is a traditional serial port equipment or an equipment that needs a VGA interface for data transmission or display, stable communication connection can be realized through the filter, and the application range of the filter is widened.

[0018] (3) The conductive block is arranged in the terminal block, the conductive block is not only electrically connected with the wire, but also further enhances the stability of the electrical connection through the conductive piece, the insertion slot in the conductive block enables the one end of the wire to be inserted into the insertion slot and tightly contact with the conductive block, and the efficiency and accuracy of signal transmission are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of the utility model;

[0020] Figure 2 It is a top view of the utility model;

[0021] Figure 3 It is the structure diagram of the utility model wire insertion slot structure diagram;

[0022] Figure 4 It is the structure diagram of the utility model wire insertion slot structure diagram;

[0023] Figure 5 It is the working principle diagram of the utility model filter.

[0024] In the figure: 1, filter;2, interface;3, male end of coaxial cable;4, female end of coaxial cable;5, wiring block;6, wire;7, wire head;8, bolt;9, insulating block;10, conducting block;11, threaded cylinder;12, guide groove;13, guide rod;14, conducting sheet;15, insertion slot;16, fixing lug;17, dust screen. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be apparently and completely described below with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of protection of the utility model.

[0026] The utility model provides a kind of serial port integrated filter as shown in Figures 1-5 Including:

[0027] Filter 1, the filter 1 is equipped with several interfaces 2, the filter 1 and located interface 2 side is equipped with male end of coaxial cable 3 and female end of coaxial cable 4, the filter 1 both sides are connected with wiring block 5, the wiring block 5 side is connected with several wire head 7 for the wire 6 that is inserted, the wiring block 5 is equipped with the wire fixing assembly for the wire 6 that is inserted, the bolt 8 of the wire fixing assembly drives insulating block 9 to move downward, to make the insulating block 9 of moving and wire 6 contact wire 6 is fixed in wiring block 5 by being pressed tightly;

[0028] Conducting block 10, the conducting block 10 is equipped with several groups and is all located in wiring block 5, for wire 6 that is inserted electrically connected.

[0029] The wire fixing assembly includes threaded cylinder 11, the threaded cylinder 11 is equipped with several groups and is all located in wiring block 5, the bolt 8 is equipped with several groups and is all threaded connection in threaded cylinder 11, the insulating block 9 is equipped with several groups and is all located in wiring block 5, the bolt 8 one end in wiring block 5 is rotationally connected with insulating block 9.

[0030] The wiring block 5 is provided with a plurality of guide grooves 12, and the guide rods 13 are slidably connected in the guide grooves 12.

[0031] The wiring block 5 is provided with a plurality of conductive pieces 14, and the conductive block 10 is electrically connected with the conductive pieces 14.

[0032] The conductive block 10 is provided with a slot 15, and one end of the wire 6 is inserted into the slot 15. The tight physical contact between the wire 6 and the conductive block 10 is achieved by inserting one end of the wire 6 into the slot 15, thereby forming a stable and reliable electrical connection.

[0033] The filter 1 is provided with a plurality of fixing ears 16 on the surface, which facilitates the installation of the filter 1. During actual installation, the filter 1 can be installed inside the equipment by means of screws penetrating through the fixing ears 16.

[0034] The filter 1 is provided with a dust screen 17 on one side, which can effectively prevent dust from entering the inside of the filter 1, reduce the failure caused by dust, and prolong the service life of the filter 1.

[0035] The plurality of interfaces 2 are respectively DB9 pin type interface, DB9 hole type interface, VGA pin type interface, VGA hole type interface, DB25 pin type interface, and DB25 hole type interface.

[0036] When the wire 6 needs to be connected, the wire 6 is inserted into the wiring block 5 from the wire routing head 7 and inserted into the slot 15 in the conductive block 10, thereby realizing the electrical connection between the wire 6 and the conductive block 10. At this time, the bolt 8 in the threaded cylinder 11 is screwed, and when the bolt 8 is rotated, the bolt 8 moves downward in the threaded cylinder 11. Since one end of the bolt 8 located in the wiring block 5 is rotationally connected with the insulating block 9, the downward movement of the bolt 8 drives the insulating block 9 to move downward together. The insulating block 9 can stably move vertically downward under the guidance of the guide rod 13 and the guide groove 12, ensuring uniform contact with the wire 6. As the insulating block 9 moves downward, the wire 6 is gradually compressed and fixed in the wiring block 5, realizing the stable connection between the wire 6 and the filter 1.

[0037] After the conductive block 10 is electrically connected with the conductive pieces 14 in the wiring block 5, a complete electrical path is formed. When external signals are transmitted to the filter 1 through the wire 6, the signals will pass through the wire 6, the conductive block 10, and the conductive pieces 14 in sequence, and finally be transmitted to the inside of the filter 1 for processing. This electrical connection mode ensures the stability and reliability of the signals during transmission, reduces the loss and interference of the signals.

[0038] In the serial communication process, various noise and interference signals exist, and the filter 1 inside the filter circuit will process the signals according to its frequency characteristics. For example, for high-frequency noise signals, the capacitance or inductance in the filter circuit will produce a large impedance to the high-frequency noise signals, making it difficult for high-frequency noise signals to pass through the filter 1, while the effective signals of the serial communication can pass through smoothly, thereby realizing the filtering function of the signals, improving the signal quality, and ensuring the accuracy of data transmission.

[0039] The various interfaces 2 on the filter 1, such as DB9 pin interface 2, DB9 hole interface 2, VGA pin interface 2, VGA hole interface 2, DB25 pin interface 2, DB25 hole interface 2, etc., can be connected with the corresponding interfaces 2 of different devices. When the filter 1 is connected with the device, the signal will be transmitted between the interfaces 2. Taking serial communication as an example, the sending device transmits data signals to the filter 1 through the interface 2, and the filter 1 processes the signals and then transmits the processed signals to the receiving device through the interface 2, realizing stable communication between devices. The diversity of the interface 2 makes the filter 1 able to adapt to different types of devices and meet various communication needs.

[0040] As shown in the figure, VT1 is a transistor that plays a role of current amplification and signal buffering, and R1 is a base bias resistor that provides a suitable bias current for the base of the transistor to ensure that the transistor works in the appropriate amplification area. Figure 5

[0041] C1 is a bypass capacitor that provides a low-impedance path for alternating current signals, and C2 is a filter capacitor that uses the characteristic of "passing alternating current and blocking direct current" to filter the output signal. When the output signal contains high-frequency noise, the high-frequency noise signal will bypass C2 to the ground due to the small capacitive reactance of C2 to high-frequency signals, while the low-frequency useful signal is relatively difficult to pass through C2, so that the high-frequency noise in the output signal Uo is filtered out, and a relatively pure signal is obtained.

[0042] RL is a load resistor used to obtain the signal after transistor amplification and capacitor C2 filtering, and the output voltage Uo will generate a corresponding current and voltage drop on RL, providing a suitable signal input for the subsequent circuit.

[0043] ​Working principle: after power on, the power supply provides suitable bias current for the base of transistor VT1 through resistor R1, so that VT1 is in stable amplification state, input signal Ui enters the circuit, current change is transmitted to the base of VT1 through R1, the current amplification characteristics of VT1 are used to make the current between the collector and the emitter change accordingly, so as to amplify the input signal, the AC signal part of the input signal provides low resistance path through capacitor C1, reduces the loss on R1, makes the AC signal effectively act on the base of VT1, improves the amplification effect, the amplified signal is transmitted to the output end, capacitor C2 plays a role to bypass high-frequency noise to the ground, the filtered signal is output through the load resistor RL, and the signal Uo is relatively pure, so as to realize the filtering effect.

[0044] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement is carried out to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A series integrated filter, characterized by, Include: Filter (1), the filter (1) is provided with a plurality of interfaces (2), the filter (1) and located on the side of the interface (2) is provided with a coaxial cable male (3) and a coaxial cable female (4), the filter (1) is connected with the terminal block (5) on both sides, the terminal block (5) is connected with a plurality of wire heads (7) for penetrating into the wire (6) on one side, the terminal block (5) is provided with a wire fixing assembly for fixing the penetrating wire (6), the bolt (8) of the wire fixing assembly drives the insulation block (9) to move downward, so that the moving insulation block (9) contacts the wire (6) and fixes the wire (6) in the terminal block (5); Conductive block (10), the conductive block (10) is provided with a plurality of groups and is arranged in the terminal block (5), which is used for electrically connecting with the penetrating wire (6).

2. The integrated filter according to claim 1, wherein: The wire fixing assembly comprises a threaded cylinder (11), the threaded cylinder (11) is provided with a plurality of groups and is arranged in the terminal block (5), the bolt (8) is provided with a plurality of groups and is threadedly connected in the threaded cylinder (11), the insulation block (9) is provided with a plurality of groups and is arranged in the terminal block (5), one end of the bolt (8) located in the terminal block (5) is rotatably connected with the insulation block (9).

3. The integrated filter according to claim 1, wherein: A plurality of guide grooves (12) are arranged in the terminal block (5), and a guide rod (13) is slidably connected in the guide groove (12), one end of the guide rod (13) is connected with the insulation block (9).

4. The integrated filter according to claim 1, wherein: A plurality of conductive sheets (14) are arranged in the terminal block (5), and the conductive block (10) is electrically connected with the conductive sheet (14).

5. The integrated filter according to claim 1, wherein: The conductive block (10) is provided with a plurality of insertion grooves (15), and one end of the wire (6) is inserted into the insertion groove (15).

6. The integrated filter according to claim 1, wherein: The filter (1) is connected with a plurality of fixing ears (16) on the surface.

7. The integrated filter according to claim 1, wherein: The filter (1) is provided with a dust screen (17) on one side.

8. The integrated filter according to claim 1, wherein: A plurality of interfaces (2) are respectively DB9 pin interface, DB9 hole interface, VGA pin interface, VGA hole interface, DB25 pin interface and DB25 hole interface.

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