CN108768137B

CN108768137B - Digital signal converter

Info

Publication number: CN108768137B
Application number: CN201810559730.3A
Authority: CN
Inventors: 修娜
Original assignee: Qingdao Technical College
Current assignee: Qingdao Technical College
Priority date: 2018-06-02
Filing date: 2018-06-02
Publication date: 2020-04-07
Anticipated expiration: 2038-06-02
Also published as: CN108768137A

Abstract

The invention discloses a digital signal converter, which comprises a signal converter and a substrate, wherein the substrate is arranged in a shell which is tightly attached to the outer wall of the signal converter, grooves are embedded in the two sides of the top end of the shell, the bottom end of the shell is connected with an installation plate through screws, a transceiver is embedded in the front of the front end of the shell, and a rotating shaft is arranged at the top end of the shell. The digital signal converter is provided with an alternating current area and an amplifying tube, wherein the alternating current area and the amplifying tube are arranged on a substrate, when signals are received, the voltages of the signals can be enhanced after passing through the amplifying tube, the signals after enhancement can be subjected to signal conversion through an alternating current filter capacitor, the signals are transmitted in the process, the alternating current area can form a stable magnetic field, when the direct current correction signal method applied to the digital signal converter is used for charging and discharging a blocking capacitor, a coupling resistor can generate a resistance value, the voltage is controlled in a certain range, and the conversion of the signals is not easily interfered.

Description

Digital signal converter

Technical Field

The invention relates to the technical field of signal converters, in particular to a digital signal converter.

Background

The digital signal converter is a single-input or double-input current-voltage signal of the signal converter, transmits and outputs an isolated single-path or double-path linear current-voltage signal, improves the electrical isolation performance among input, output and power supply, can be used in cooperation with a unit combination instrument and systems such as DCS (distributed control system), PLC (programmable logic controller) and the like, thereby improving the anti-interference capability of an automatic control system in the industrial production process and ensuring the stability and reliability of the system.

However, in the conventional digital signal converter, when the dc blocking capacitor is charged and discharged by a method of correcting a signal by a dc voltage applied to the digital signal converter during use, a stability problem may occur, and a short frequency may easily occur when a digital input signal having a minimum value or a maximum value is received.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a digital signal converter, which solves the problem of unstable signal reception of the existing digital signal converter.

The technical purpose of the invention is realized by the following technical scheme: a digital signal converter comprises a signal converter and a substrate, wherein the outer wall of the signal converter is tightly attached with a shell, the substrate is arranged inside the shell, grooves are embedded in the two sides of the top end of the shell, the bottom end of the shell is connected with a mounting plate through screws, a transceiver is embedded in the front of the front end of the shell, a rotating shaft is arranged at the top end of the shell, an upper cover plate is connected above the rotating shaft through screws, the shell and the upper cover plate are movably connected through the rotating shaft, a lock catch is fixedly arranged on the front of the upper cover plate, lead posts are inserted in the upper and lower parts of the front of the substrate, coupling resistors are arranged at the bottom ends of the lead posts, alternating current filter capacitors are arranged at the bottom ends of the coupling resistors, and wiring is inserted in the two;

an alternating current area is arranged in the shell and is mutually connected with the alternating current filter capacitor through wiring, an amplifying tube is arranged at the bottom end of the substrate and is fixedly arranged on the substrate, and the amplifying tube is arranged in parallel with the lead post;

coupling resistor connects between interchange filter capacitor and the interchange district, and in the signal can be transmitted the amplifier tube, the amplifier tube strengthened the back to the signal, and the signal can be through the wiring through interchange district, when exchanging the district, can be earlier through coupling resistor, reentrant interchange district and interchange filter capacitor.

Furthermore, the front surface of the shell is connected with a dustproof plug in a penetrating mode, the dustproof plug corresponds to the transceiver, and no gap exists between the dustproof plug and the transceiver.

Furthermore, the inner side of the shell is provided with two storage devices which are fixedly arranged on the shell, and the storage devices are arranged symmetrically.

Furthermore, the outer surface of the mounting plate is provided with four pin holes, the pin holes penetrate through the mounting plate, and the four pin holes are uniformly distributed.

Furthermore, a convex block is arranged at the bottom end of the upper cover plate and fixedly mounted on the upper cover plate, and the protruding length of the convex block corresponds to the depth of the groove.

Furthermore, the inner surface of the bottom end of the upper cover plate is provided with a wiring board which is clamped in the upper cover plate, and wire holes are uniformly distributed on two sides of the wiring board.

Furthermore, the top end of the upper cover plate is provided with a display screen, and the display screen is fixedly installed on the upper cover plate.

In conclusion, the invention has the following beneficial effects:

1. the digital signal converter is provided with an alternating current area and an amplifying tube, wherein the alternating current area and the amplifying tube are arranged on a substrate, when signals are received, the voltages of the signals can be enhanced after passing through the amplifying tube, the signals after enhancement can be subjected to signal conversion through an alternating current filter capacitor, the signals are transmitted in the process, the alternating current area can form a stable magnetic field, when the direct current correction signal method applied to the digital signal converter is used for charging and discharging a blocking capacitor, a coupling resistor can generate a resistance value, the voltage is controlled within a certain range, the conversion of the signals is not easily interfered, and the stability of signal transmission is ensured.

2. The digital signal converter is provided with the pin holes on the mounting plate, so that a proper mounting mode can be selected according to environmental factors in the using process of the signal converter, and the application range of the signal converter is widened.

3. This digital signal converter is provided with the display screen, and in people's use to signal converter, people can be through observing the degree of signal conversion to the display screen, simultaneously, is convenient for carry out data acquisition for people can carry out centralized management.

4. This digital signal converter is provided with the dustproof stopper, and the dustproof stopper is corresponding with the transceiver, and the dustproof stopper covers the clearance around the transceiver, can carry out all-round protection to the transceiver, prevents that the dust from getting into to cause the influence to the use of transceiver, has prolonged the life of transceiver.

5. This digital signal converter is provided with the wiring board, and wiring board both sides evenly distributed has the line hole, and the wiring board is installed in the below of display screen, and when installing the use to the display screen, the wiring board can distinguish various circuit, prevents that the mistake in disorder from appearing, influences signal converter's normal use.

Drawings

FIG. 1 is a schematic structural view of the device body;

FIG. 2 is a schematic diagram of a partial structure of the present signal converter;

FIG. 3 is a partial structural view of the present substrate;

fig. 4 is a schematic view of the operation flow of the device body.

In the figure, 1-signal converter; 2-a housing; 201-dust plug; 202-a storage; 203-grooves; 3, mounting a plate; 301-pin holes; 4-a transceiver; 5-a rotating shaft; 6-upper cover plate; 601-a bump; 602-locking; 603 — a wiring board; 7-a display screen; 8-a substrate; 801-lead post; an 802-communication area; 803-coupling resistance; 804-an ac filter capacitor; 805-an amplifier tube; 806-routing.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a digital signal converter comprises a signal converter 1 and a substrate 8, wherein the outer wall of the signal converter 1 is tightly attached to a shell 2, the substrate 8 is arranged inside the shell 2, a groove 203 is embedded in two sides of the top end of the shell 2, the bottom end of the shell 2 is connected with a mounting plate 3 through screws, a transceiver 4 is embedded in the front of the front end of the shell 2, a rotating shaft 5 is arranged at the top end of the shell 2, an upper cover plate 6 is connected above the rotating shaft 5 through screws, the shell 2 and the upper cover plate 6 are movably connected through the rotating shaft 5, a lock catch 602 is fixedly arranged on the front of the upper cover plate 6, lead posts 801 are inserted in the upper and lower parts of the front of the substrate 8, a coupling resistor 803 is arranged at the bottom end of each lead post 801, an alternating current filter capacitor 804 is arranged at the bottom end;

an alternating current area 802 is arranged in the shell 2, the alternating current area 802 and the alternating current filter capacitor 804 are connected with each other through a wiring 806, an amplifying tube 805 is arranged at the bottom end of the substrate 8, the amplifying tube 805 is fixedly arranged on the substrate 8, and the amplifying tube 805 is arranged in parallel with the lead post 801;

the coupling resistor 803 is connected between the ac filter capacitor 804 and the ac area 802, a signal is transmitted into the amplification tube 805, after the amplification tube 805 enhances the signal, the signal passes through the ac area 802 through the wiring 806, and when passing through the ac area 802, the signal passes through the coupling resistor 803 first and then enters the ac area 802 and the ac filter capacitor 804.

Furthermore, the front surface of the housing 2 is connected with a dust plug 201 in a penetrating manner, the dust plug 201 corresponds to the transceiver 4, and no gap exists between the dust plug 201 and the transceiver 4, so that the transceiver 4 can be protected comprehensively, and the transceiver 4 is prevented from being damaged by long-time use.

Further, the inner side of the housing 2 is provided with two storages 202, the storages 202 are fixedly mounted on the housing 2, and the storages 202 are arranged symmetrically, so that the synchronous retrieval of signals can be realized after the storages 202 receive the signals, and the working efficiency of the signal converter 1 is improved.

Further, the outer surface of the mounting plate 3 is provided with the pin holes 301, the pin holes 301 penetrate through the mounting plate 3, the number of the pin holes 301 is four, and the four pin holes 301 are uniformly distributed, so that the whole mounting plate 3 can be stressed uniformly after being mounted, and the normal use of the signal converter 1 is ensured.

Further, a bump 601 is disposed at the bottom end of the upper cover plate 6, the bump 601 is fixedly mounted on the upper cover plate 6, the protruding length of the bump 601 corresponds to the depth of the groove 203, and after the signal converter 1 is used, the signal converter 1 is closed by the upper cover plate 6.

Further, the internal surface of upper cover plate 6 bottom is provided with wiring board 603, and wiring board 603 joint sets up in upper cover plate 6, and wiring board 603 both sides evenly distributed has the line hole, through wiring board 603 for the wiring to display screen 7 can not be too in disorder, and convenient to use person manages.

Furthermore, the top of upper cover plate 6 is provided with display screen 7, and display screen 7 fixed mounting is on upper cover plate 6, and the user can manage data through display screen 7 in the in-process of using signal converter 1.

The inside of shell 2 is provided with exchange district 802, exchange district 802 embedding sets up in shell 2, and exchange district 802 and exchange filter capacitor 804 interconnect through wiring 806, the bottom of base plate 8 is provided with amplifier tube 805, amplifier tube 805 fixed mounting is on base plate 8, and amplifier tube 805 and pin 801 parallel arrangement, when receiving the signal, the voltage can be strengthened after the signal passes through amplifier tube 805, the signal after the reinforcing can carry out signal conversion through exchange filter capacitor 804, and the signal is in the in-process of transmission, exchange district 802 can form a stable magnetic field, realized the stable conversion to the signal.

The working principle is as follows: firstly, when a user uses the signal converter 1, the signal converter 1 needs to be comprehensively checked, if a problem is found, the problem is timely processed, after the checking is finished, the user installs and fixes the signal converter 1 through the pin hole 301 on the mounting plate 3, after the installation is finished, when the signal is started to be received and converted, the signal is received by the transceiver 4, after the signal is received, the signal is transmitted into the amplifying tube 805, after the amplifying tube 805 enhances the signal, the signal passes through the alternating current area 802 through the wiring 806, and when the signal passes through the alternating current area 802, the signal firstly passes through the coupling resistor 803 and then enters the alternating current area 802 and the alternating current filter capacitor 804; the lead posts 801 guide the lines of different amplification tubes 805, signals enter the alternating current filter capacitor 804 for conversion, a user can record data through the display screen 7 after conversion, and after use, the user can perform closed protection on the signal converter 1 by mutually embedding the convex blocks 601 and the grooves 203 on the upper cover plate 6 and then closing the lock catches 602.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. A digital signal converter, characterized by: the signal converter comprises a signal converter (1) and a substrate (8), wherein the outer wall of the signal converter (1) is tightly attached with a shell (2), the substrate (8) is arranged inside the shell (2), grooves (203) are embedded in two sides of the top end of the shell (2), the bottom end of the shell (2) is connected with a mounting plate (3) through screws, a transceiver (4) is embedded in the front of the front end of the shell (2), a rotating shaft (5) is installed at the top end of the shell (2), an upper cover plate (6) is connected above the rotating shaft (5) through screws, the shell (2) is movably connected with the upper cover plate (6) through the rotating shaft (5), a lock catch (602) is fixedly installed on the front surface of the upper cover plate (6), lead posts (801) are inserted in the upper and lower parts of the front surface of the substrate (8), and a coupling resistor (803) is installed at the bottom end of each, an alternating current filter capacitor (804) is installed at the bottom end of the coupling resistor (803), and wiring (806) is inserted into two sides of the lead post (801);

an alternating current area (802) is arranged in the shell (2), the alternating current area (802) and the alternating current filter capacitor (804) are connected with each other through a wiring (806), an amplifying tube (805) is arranged at the bottom end of the substrate (8), the amplifying tube (805) is fixedly installed on the substrate (8), and the amplifying tube (805) is arranged in parallel with the lead post (801);

the coupling resistor (803) is connected between the alternating current filter capacitor (804) and the alternating current area (802), signals can be transmitted into the amplifying tube (805), after the amplifying tube (805) enhances the signals, the signals can pass through the alternating current area (802) through the wiring (806), and when passing through the alternating current area (802), the signals can firstly pass through the coupling resistor (803) and then enter the alternating current area (802) and the alternating current filter capacitor (804).

2. A digital signal converter as claimed in claim 1, wherein: the front surface of the shell (2) is connected with a dustproof plug (201) in a penetrating mode, the dustproof plug (201) corresponds to the transceiver (4), and no gap exists between the dustproof plug (201) and the transceiver (4).

3. A digital signal converter as claimed in claim 1, wherein: the inner side of the shell (2) is provided with two reservoirs (202), the reservoirs (202) are fixedly arranged on the shell (2), and the reservoirs (202) are arranged symmetrically.

4. A digital signal converter as claimed in claim 1, wherein: the outer surface of mounting panel (3) is provided with pinhole (301), pinhole (301) run through the setting in mounting panel (3), and pinhole (301) are provided with four to evenly distributed between four pinholes (301).

5. A digital signal converter as claimed in claim 1, wherein: the bottom end of the upper cover plate (6) is provided with a bump (601), the bump (601) is fixedly installed on the upper cover plate (6), and the protruding length of the bump (601) corresponds to the depth of the groove (203).

6. A digital signal converter as claimed in claim 1, wherein: the inner surface of upper cover plate (6) bottom is provided with wiring board (603), wiring board (603) joint sets up in upper cover plate (6), and wiring board (603) both sides evenly distributed have the line hole.

7. A digital signal converter as claimed in claim 1, wherein: the top of upper cover plate (6) is provided with display screen (7), display screen (7) fixed mounting is on upper cover plate (6).