CN216560726U - Novel universal meter - Google Patents

Abstract

The invention relates to a novel universal meter, which comprises a functional module, a power supply and a shell, wherein the functional module comprises a circuit detection module, a light path detection module and a network detection module; the power supply comprises a power supply module and a module selector; the output end of the module selector is respectively electrically connected with the circuit detection module, the light path detection module and the network detection module through power connecting wires, and the input end of the module selector is electrically connected with the power module through the power connecting wires, so that the module selector is switched to provide working electric energy for the functional module through the gear of the module selector; the invention provides a meter which is convenient, efficient, safe and reliable for operation and maintenance personnel of a power grid and integrates all functions of a daily operation and inspection tool, and realizes the operation and inspection of all relay protection equipment by using a single tool.

Description

Novel universal meter

Technical Field

The invention relates to the field of electric power tools, in particular to a novel universal meter.

Background

In the operation and maintenance work of the power industry, a large number of relay protection devices need operation and maintenance personnel to perform detection and maintenance in daily work, so that the optimal operation of a power grid is ensured. The relay protection is a guarantee for the safe and stable operation of the power grid, and undertakes the tasks of protecting, measuring and controlling power grid equipment, the traditional relay protection operation and detection tool mainly takes a universal meter as a main part, along with the continuous popularization of intelligent substations and the continuous improvement of the requirement of the automation level of the substations, the use quantity of optical fiber networks and Ethernet of the substations is more and more, the operation and maintenance and repair of the traditional relay protection operation and detection tool becomes an important component part of the relay protection work, so that the requirement is provided for the relay protection operation and detection tool, in the current operation and detection work, an operator needs to carry tools such as the universal meter, an optical power meter, a network cable tester and the like to carry out related work, the potential safety hazards caused by the various tools, the single function of the tool, the heavy carrying load, the differentiation of multiple wiring and use methods and the complex operation exist, therefore, a universal meter with high integration and convenient use needs to be developed, the tool is used for executing maintenance operation, thereby providing a tool with powerful functions, safety, high efficiency and portability for the operation and the maintenance of the relay protection equipment.

Disclosure of Invention

The invention provides a novel multimeter aiming at the defect of complex tools used in the operation and maintenance work of a power grid, and aims to improve the efficiency of power grid operation and maintenance personnel; the invention is realized by adopting the following technical scheme.

A novel multimeter comprises a functional module, a power supply and a shell 6, wherein the functional module comprises a circuit detection module 1, a light path detection module 2 and a network detection module 3; the power supply comprises a power supply module 4 and a module selector 5; the output end of the module selector 5 is respectively electrically connected with the circuit detection module 1, the light path detection module 2 and the network detection module 3 through power connecting wires, and the input end of the module selector 5 is electrically connected with the power module 4 through the power connecting wires, so that the functional module is switched to provide working electric energy through the gear of the module selector 5; the circuit detection module 1 is provided with a meter pen socket for plugging a meter pen to detect the electrical quantity parameters of the circuit to be detected, and the display screen arranged on the circuit detection module 1 displays detection data; the optical path detection module 2 is provided with a detection optical port to detect parameters of a detected optical path and display detection data through a display screen arranged on the optical path detection module 2; the network detection module 3 comprises a host 21, an auxiliary machine 32 and an indicator light 33, wherein the host 31 and the auxiliary machine 32 are respectively provided with corresponding RJ45 sockets to detect parameters of a detected network and display detection data through the indicator light 33.

Further, the housing 6 includes an upper housing 61 and a lower housing 62; the upper part of the upper shell 61 is provided with two through holes for installing and fixing a meter pen socket, and a circuit detection module 1 is fixed in the upper shell 61; the upper part of the lower shell 62 is provided with a through hole for installing and fixing a detection light port, the lower shell 62 is internally fixed with the light path detection module 2, in addition, the two side surfaces of the lower shell 62 are provided with through holes for fixing the main machine 31, the indicator light 33 and the auxiliary machine 32, in addition, the bottom of the lower shell 62 is provided with a through hole for fixing the module selector 5; the circuit detection module 1 comprises a meter pen socket fixedly arranged on the upper edge, a circuit detection module display screen on the upper part and a circuit detection module function key on the lower part; the upper edge of the light path detection module 2 is fixedly provided with a detection light port, an upper light path detection module display screen and a lower light path detection module function key; and the power supply module 4 is fixedly arranged at the lower part of the circuit detection module 3 in the shell 6.

Further, the circuit detection module 1 adopts a DTM0660 single chip microcomputer.

Further, the optical path detection module 2 is an integrated circuit board having a PIN detection optical power and frequency and a logarithmic amplifier AD8304 chip.

Further, the host 31 adopts an integrated circuit board which is composed of a time delay circuit composed of the time base circuit NE555 and peripheral elements and an octal counting and timing distributor CD 4017.

Further, the module selector 5 is a combination switch having a three-phase path and a one-phase disconnection.

Further, the auxiliary machine 32 is movably and detachably disposed in a through hole formed in a side surface of the lower case 62.

Further, the power module 4 is a lithium battery.

The invention has the advantages of convenient and efficient use, safety and reliability, realizes the possibility of solving the operation and the detection of all relay protection equipment by a single tool through the novel universal meter formed by integrating all functions of the daily operation and detection tool, and provides a tool with powerful functions, safety, high efficiency and convenience for carrying for the operation and the detection of the relay protection equipment.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1: a schematic structural diagram of a functional module of the novel universal meter;

FIG. 2: the assembly schematic diagram of the novel multimeter;

FIG. 3: the overall effect schematic diagram of the novel multimeter;

in the figure: 1. a circuit detection module; 2. an optical path detection module; 3. a network detection module; 31. a host; 32. a secondary machine; 33. an indicator light; 4. a power supply module; 5. a module selector; 6. a housing; 61. an upper housing; 62. a lower housing.

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.

The structure of the novel multimeter of the present invention is realized by the following embodiments, which are shown in fig. 1 to fig. 3.

The novel multimeter comprises a functional module, a power supply and a shell 6, wherein the functional module and the power supply are fixed in the shell 6, and the specific structure of the novel multimeter is as follows.

The functional module comprises a circuit detection module 1, a light path detection module 2 and a network detection module 3; the power supply comprises a power supply module 4 and a module selector 5; the output end of the module selector 5 is respectively electrically connected with the circuit detection module 1, the light path detection module 2 and the network detection module 3 through power connecting wires, and the input end of the module selector 5 is electrically connected with the power module 4 through the power connecting wires, so that the functional module is switched to provide working electric energy through the gear of the module selector 5; the circuit detection module 1 is provided with a meter pen socket for plugging a meter pen to detect the electrical quantity parameters of the circuit to be detected, and the display screen arranged on the circuit detection module 1 displays detection data; the optical path detection module 2 is provided with a detection optical port to detect parameters of a detected optical path and display detection data through a display screen arranged on the optical path detection module 2; the network detection module 3 comprises a host 21, an auxiliary machine 32 and an indicator light 33, wherein the host 31 and the auxiliary machine 32 are respectively provided with corresponding RJ45 sockets to detect parameters of a detected network and display detection data through the indicator light 33;

therefore, the novel multimeter has the characteristics of portability and multiple functions, and power grid operation and maintenance personnel can execute tasks of electric quantity detection, optical network optical fiber detection and Ethernet cable detection in the operation and detection process of the relay protection equipment, so that all conventional operation and detection work of the relay protection equipment is covered.

Preferably, the housing 6 comprises an upper housing 61 and a lower housing 62; the upper part of the upper shell 61 is provided with two through holes for installing and fixing a meter pen socket, and a circuit detection module 1 is fixed in the upper shell 61; the upper part of the lower shell 62 is provided with a through hole for installing and fixing a detection light port, the lower shell 62 is internally fixed with the light path detection module 2, in addition, the two side surfaces of the lower shell 62 are provided with through holes for fixing the main machine 31, the indicator light 33 and the auxiliary machine 32, in addition, the bottom of the lower shell 62 is provided with a through hole for fixing the module selector 5; the circuit detection module 1 comprises a meter pen socket fixedly arranged on the upper edge, a circuit detection module display screen on the upper part and a circuit detection module function key on the lower part; the upper edge of the light path detection module 2 is fixedly provided with a detection light port, an upper light path detection module display screen and a lower light path detection module function key; the power module 4 is fixedly arranged at the lower part of the circuit detection module 3 in the shell 6;

therefore, the novel multimeter has good maintainability, and when the multimeter fails, only corresponding parts need to be detached for replacement.

Preferably, the circuit detection module 1 adopts a DTM0660 single chip microcomputer;

therefore, the novel multimeter has the function of automatic gear switching when detecting the electric quantity, namely, the measured electric quantity is initialized and judged within 0.1S, when the red and black pens of the multimeter alternately have high and low levels, the multimeter is automatically switched to an alternating current gear, when the red and black pens of the multimeter have the same potential and are kept, the multimeter is automatically switched to a direct current gear, when no level exists and the resistance is more than 40 ohms, the multimeter is switched to a resistance gear, and when no level exists and the resistance is less than 40 ohms, the multimeter is switched to an on-off gear;

preferably, the optical path detection module 2 is an integrated circuit board having a PIN detection optical power and frequency and a logarithmic amplifier AD8304 chip; when the optical power and frequency are tested, the optical fiber to be tested is inserted into the detection optical port, the optical power detection function is selected on the function key of the optical path detection module and is switched to the proper wavelength, the display screen of the optical path detection module can display the power/frequency value, whether the optical path attenuation and the light source are normal or not can be judged through the power value, and whether the optical signal is continuous or not can be judged through the frequency value;

therefore, the novel multimeter has the characteristics of wavelength range of optical power/frequency detection of 800-1700nm, response speed of less than 5us and error of less than 0.1 percent, thereby having a wider detection range.

Preferably, the host 31 adopts an integrated circuit board which is composed of a time delay circuit composed of a time base circuit NE555 and peripheral elements and an octal counting and timing distributor CD 4017; when the network cable is subjected to the on-off test, one end of the indicator light is inserted into the RJ45 port of the main machine 31, and the other end of the indicator light is inserted into the RJ45 port of the auxiliary machine 32, so that the indicator lights 33 of the main machine 31 and the auxiliary machine 32 are sequentially turned on, are fully turned on, are in a normal sequence, represent that the network cable is normal, and represent that the network cable is not turned on or is in a disordered sequence, and represent that the network cable is abnormal.

Therefore, the time base circuit NE555 and the peripheral elements of the novel multimeter form a delay circuit for determining the test time of each line; and the selected octal counting/time sequence distributor CD4017 is used for realizing the ordered and circular line selection function so as to determine which line is tested; therefore, the operation and maintenance personnel of the power grid can perform the operation more easily.

Preferably, the module selector 5 is a combination switch having a three-phase path and a one-phase open circuit; the function selection for the novel multimeter is suitable for executing different detection targets.

Preferably, the auxiliary machine 32 is movably and detachably arranged in a through hole on the side surface of the lower shell 62; thereby realizing the detection operation of the performance of the remote network line.

Preferably, the lithium battery adopted by the power module 4 has large capacity and good universality.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (8)

1. A novel universal meter comprises a functional module, a power supply and a shell (6), and is characterized in that the functional module comprises a circuit detection module (1), a light path detection module (2) and a network detection module (3); the power supply comprises a power supply module (4) and a module selector (5); the output end of the module selector (5) is respectively electrically connected with the circuit detection module (1), the light path detection module (2) and the network detection module (3) through power connecting wires, and the input end of the module selector (5) is electrically connected with the power module (4) through the power connecting wires, so that the module selector (5) is switched to the functional module to provide working electric energy; the circuit detection module (1) is provided with a meter pen socket for plugging a meter pen so as to detect the electrical quantity parameters of the circuit to be detected, and the display screen arranged on the circuit detection module (1) displays detection data; the light path detection module (2) is provided with a detection light port to detect parameters of a detected light path and display detection data through a display screen arranged on the light path detection module (2); the network detection module (3) comprises a host (31), an auxiliary machine (32) and an indicator light (33), wherein the host (31) and the auxiliary machine (32) are respectively provided with corresponding RJ45 sockets to detect parameters of a detected network and display detection data through the indicator light (33).

2. A novel multimeter as claimed in claim 1, wherein the case (6) comprises an upper case (61) and a lower case (62); the upper part of the upper shell (61) is provided with two through holes for installing and fixing a meter pen socket, and a circuit detection module (1) is fixed in the upper shell (61); the upper part of the lower shell (62) is provided with a through hole for installing and fixing a detection light port, the lower shell (62) is internally fixed with a light path detection module (2), in addition, two side surfaces of the lower shell (62) are provided with through holes for fixing a main engine (31), an indicator light (33) and an auxiliary engine (32), and in addition, the bottom of the lower shell (62) is provided with a through hole for fixing a module selector (5); the circuit detection module (1) comprises a meter pen socket fixedly arranged on the upper edge, a circuit detection module display screen on the upper part and a circuit detection module function key on the lower part; the upper edge of the light path detection module (2) is fixedly provided with a detection light port, an upper light path detection module display screen and a lower light path detection module function key; and the power supply module (4) is fixedly arranged at the lower part of the network detection module (3) in the shell (6).

3. The novel multimeter of claim 1 or 2, wherein the circuit detection module (1) is a DTM0660 single chip microcomputer.

4. The novel multimeter according to any one of claims 1 or 2, wherein the optical path detection module (2) is an integrated circuit board having a PIN detection optical power and frequency and log amplifier AD8304 chip.

5. A novel multimeter as claimed in any one of claims 1 or 2, wherein said host (31) is an integrated circuit board comprising a time base circuit NE555 and peripheral components comprising a delay circuit and an octal counter and timing distributor CD 4017.

6. A novel multimeter as claimed in claim 5, wherein the module selector (5) is a combination switch having a three-phase path and a one-phase open circuit.

7. A novel multimeter as claimed in claim 5, wherein the secondary unit (32) is movably and detachably disposed in a through hole in a side of the lower case (62).

8. A novel multimeter as claimed in any one of claims 6 or 7, wherein the power module (4) employs a lithium battery.

Images