CN213581162U

CN213581162U - Microcomputer relay protection tester

Info

Publication number: CN213581162U
Application number: CN202021272156.2U
Authority: CN
Inventors: 李军; 张正浩
Original assignee: Zhuhai Hengtai Power Technology Co ltd
Current assignee: Zhuhai Hengtai Power Technology Co ltd
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2021-06-29
Anticipated expiration: 2030-07-01

Abstract

The utility model discloses a computer relay protection tester relates to circuit tester technical field. The utility model discloses a structure includes backshell, functional unit, connecting wire main part, lamp pearl, button switch, install functional unit in the interior cavity of backshell, functional unit includes computer, high accuracy linear voltage source, DC power supply, the connecting wire main part includes electric wire and plug, the left end of electric wire is connected with a plug right-hand member and is connected with No. two plugs, the port is inserted to a plug, No. two plugs insert the circuit jack that awaits measuring, the lamp pearl sets up in the lateral wall recess before No. two plugs, be provided with the battery in the left side wall upper groove of No. two plugs, button switch sets up in the top lateral wall recess of a plug, button switch passes through the wire and connects on the return circuit of battery and lamp pearl. The utility model discloses be convenient for investigate dislocation connecting wire, and have heat dispersion.

Description

Microcomputer relay protection tester

Technical Field

The utility model relates to a circuit tester technical field especially relates to a computer relay protection tester.

Background

Microcomputer relay protection is widely applied to various fields such as line protection, main transformer differential protection, excitation control and the like. The comprehensive automation of the transformer substation has become the mainstream. The relay protection tester is an important testing tool for ensuring the safe and reliable operation of the power system. With the rapid development of computer technology, microelectronic technology and power electronic technology, it is a necessary trend of technical progress to continuously provide a novel high-performance relay protection testing device by applying the latest technical achievements. A plurality of output ports and input ports of the microcomputer relay protection tester in the prior art can be simultaneously connected with various test points of different circuits, connecting lines are easy to tangle and difficult to check whether the wiring is correct, and the heat dissipation performance is poor due to the fact that the tightness of a machine body is good for improving the waterproof performance.

Accordingly, one skilled in the art provides a subject to solve the problems set forth in the background above.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that it is correct to overcome prior art's computer relay protection tester connecting wire entangle easily and be difficult to the investigation wiring together, and heat dispersion is not good.

In order to solve the technical problems, the utility model provides a microcomputer relay protection tester, which comprises,

the shell structure comprises a rear shell, the rear shell is of a cuboid shell structure, functional components are mounted in an inner cavity of the rear shell, a plurality of input and output ports are arranged in through holes in the front side wall of the rear shell, and the rear shell plays a role in supporting and protecting an internal structure; the cover plate is of a rectangular plate-shaped structure, the top end of the cover plate is connected with the front lower edge of the rear shell through a connecting shaft, and the cover plate rotates upwards to cover the front wall of the rear shell to play a role in protecting components on the front wall of the rear shell;

the functional component structurally comprises a computer, wherein a host part of the computer is arranged at the rear part of a cavity of the rear shell, a display screen of the computer is arranged in a through hole at the right part of the front side wall of the rear shell and is used as an output display interface, a DSP (digital signal processor) digital signal processing system, a D/A (digital/analog) converter and an A/D converter are arranged in the host, and the host has the function of processing information; the high-precision linear voltage source is provided with a current power amplifier, the high-precision linear voltage source can output high-precision linear voltage, and the current power amplifier is coupled to output alternating current and direct current waveforms; the direct current power supply is arranged in the cavity in the rear shell and can directly output direct current voltage;

the connecting wire structure comprises a connecting wire main body, the connecting wire main body comprises an electric wire and a plug, the left end of the electric wire is connected with a first plug, the right end of the electric wire is connected with a second plug, the first plug is inserted into a port, the second plug is inserted into a circuit jack to be tested, and the connecting wire plays a role in guiding current; the lamp beads are arranged in grooves on the front side wall of the second plug, a battery is arranged in a groove on the left side wall of the second plug, the lamp beads and the battery form a loop through a conducting wire, and the lamp beads flicker to find out a circuit connection point to be tested corresponding to the port; button switch, button switch set up in the top side wall groove of a plug, button switch passes through the wire and connects on the return circuit of battery and lamp pearl, when button switch closed, lamp pearl on No. two plugs twinkle.

As a further aspect of the present invention: a keyboard is fixed in the groove in the top side wall of the cover plate, the keyboard is connected with a host through a data line, and the keyboard is used as input equipment of a computer.

As a further aspect of the present invention: the ports comprise a switching value input port, a voltage output port, a current output port, a switching value output port and a fixed output port.

As a further aspect of the present invention: and a power amplifier switch, a grounding binding post, a reset button, a fuse, a host switch, a notebook interface and a USB interface are arranged in the through hole on the front side wall of the rear shell.

As a further aspect of the present invention: the heat dissipation mechanism is arranged on the right wall of the rear shell, the heat dissipation mechanism structure part comprises a sealing cover, the sealing cover is of a rectangular plate structure, the sealing cover is arranged in a groove in the right side wall of the rear shell, the top end of the sealing cover is connected with the rear shell through a fixed shaft, a plurality of through holes are arranged on the rear shell wall on the left side of the sealing cover and are heat dissipation holes, the heat dissipation holes are convenient for a host to dissipate heat, and the sealing cover can seal the heat dissipation holes; the heat dissipation fan is fixed on the left side wall of the right wall of the rear shell, the heat dissipation fan is opposite to the heat dissipation holes in the left and right directions, the heat dissipation fan is connected with a power supply in the functional component through a wire, and the heat dissipation fan can send hot air in the rear shell to the heat dissipation holes to be rolled out, so that the heat dissipation effect is achieved.

As a further aspect of the present invention: a layer of rubber pad is fixed on the inner side wall of the sealing cover, and the rubber pad fills gaps between the sealing cover and the heat dissipation holes, so that a waterproof effect is achieved.

As a further aspect of the present invention: be provided with anti-skidding line on the right side wall of sealed lid, anti-skidding line is convenient for pull out sealed lid from backshell right side wall.

As a further aspect of the present invention: the button switch structure comprises copper sheets, wherein the copper sheets are of arc-shaped plate structures, two copper sheets are respectively attached to the left wall and the right wall of a jack at the bottom end of a concave groove on the top side wall of a plug I, the two copper sheets are connected to the opening of a lead, and the copper sheets are disconnected from the lead; the button is cylindrical and is arranged in a groove on the top side wall of the first plug, a copper column is fixed at the center of the bottom side wall of the button, and the button moves downwards to drive the copper column to move downwards so that the copper column is inserted into the jack and the two copper sheets are communicated; the spring is fixed in the groove of the top side wall of the first plug, the top end of the spring is fixedly connected with the bottom side wall of the button, and the spring gives upward force to the button to reset the button.

The utility model has the advantages that:

(1) the utility model discloses improve the connecting wire, insert the port with a plug of connecting wire in, insert the jack of the circuit connection point that awaits measuring with No. two plugs, when finishing each port and jack connection and appearing the mistake after finishing, can press the button switch on the plug, make lamp pearl and battery intercommunication, lamp pearl scintillation on No. two plugs, the user can find the circuit connection point that awaits measuring of No. two plug insertions rapidly, whether the investigation is correct. The utility model discloses be convenient for investigate dislocation connecting wire.

(2) The utility model discloses set up heat dissipation mechanism, when the main frame generates heat, rotate the closing plate to the right side, make the louvre expose, for the circular telegram of heat dissipation fan, the heat dissipation fan rolls out hot-air in with the backshell from the louvre, and cold air gets into the backshell inner cavity from the louvre, reaches radiating effect. The utility model discloses heat dispersion has.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a right side view of the present invention;

FIG. 3 is a partial cross-sectional view of the rear housing;

fig. 4 is a schematic structural diagram of the connecting wire.

Wherein: rear shell 10, apron 11, handle 12, landing leg 13, sealed lid 14, rubber pad 15, louvre 16, heat dissipation fan 17, antiskid line 18, display screen 20, port 21, keyboard 22, first plug 23, second plug 24, electric wire 25, lamp pearl 26, battery 27, copper sheet 28, button 29, copper post 30, spring 31.

Detailed Description

The microcomputer relay protection tester provided by the embodiment has the structure shown in fig. 1-4, and comprises,

the shell structure comprises a rear shell 10, wherein the rear shell 10 is of a cuboid shell structure, functional components are installed in an inner cavity of the rear shell 10, a plurality of input and output ports 21 are formed in through holes in the front side wall of the rear shell 10, and the rear shell 10 plays a role in supporting and protecting an internal structure; the cover plate 11 is of a rectangular plate-shaped structure, the top end of the cover plate 11 is connected with the front lower edge of the rear shell 10 through a connecting shaft, and the cover plate 11 rotates upwards to cover the front wall of the rear shell 10 to protect the upper parts of the front wall of the rear shell 10;

the functional unit structurally comprises a computer, a host part of the computer is arranged at the rear part of a cavity of the rear shell, a display screen 20 of the computer is arranged in a through hole at the right part of the front side wall of the rear shell 10, the display screen 20 is used as an output display interface, a DSP (digital signal processor) digital signal processing system, a D/A (digital/analog) converter and an A/D (analog/digital) converter are arranged in the host, and the host has the function of processing information; the high-precision linear voltage source is provided with a current power amplifier, the high-precision linear voltage source can output high-precision linear voltage, and the current power amplifier is coupled to output alternating current and direct current waveforms; a direct current power supply which is arranged in the cavity in the rear shell 10 and can directly output direct current voltage;

the connecting wire structure comprises a connecting wire main body, the connecting wire main body comprises an electric wire 25 and a plug, the left end of the electric wire 25 is connected with a first plug 23, the right end of the electric wire 25 is connected with a second plug 24, the first plug 23 is inserted into the port 21, the second plug 24 is inserted into a circuit jack to be tested, and the connecting wire plays a role in guiding current; the lamp bead 26 is arranged in a groove in the front side wall of the second plug 24, a battery 27 is arranged in a groove in the left side wall of the second plug 24, the lamp bead 26 and the battery 27 form a loop through a conducting wire, and the lamp bead 26 flickers to find a circuit connection point to be tested corresponding to the port 21; button switch, button switch set up in the top side wall groove of a plug 23, button switch passes through the wire and connects on battery 27 and lamp pearl 26's return circuit, when button switch closed, lamp pearl 26 on No. two plugs 24 twinkles.

A keyboard 22 is fixed in the top side wall groove of the cover plate 11, the keyboard 22 is connected with a host computer through a data line, and the keyboard 22 is used as an input device of the computer.

The ports 21 include a switching value input port, a voltage output port, a current output port, a switching value output port, and a fixed output port.

A power amplifier switch, a grounding binding post, a reset button, a fuse, a host switch, a notebook interface and a USB interface are arranged in the through hole of the front side wall of the rear shell 10.

The right wall of the rear shell 10 is provided with a heat dissipation mechanism, the structure part of the heat dissipation mechanism comprises a sealing cover 14, the sealing cover 14 is in a rectangular plate structure, the sealing cover 14 is arranged in a groove on the right side wall of the rear shell 10, the top end of the sealing cover 14 is connected with the rear shell 10 through a fixed shaft, a plurality of through holes which are heat dissipation holes 16 are arranged on the wall of the rear shell 10 on the left side of the sealing cover 14, the heat dissipation holes 16 are convenient for a host to dissipate heat, and the sealing cover 14 can seal the heat; the heat dissipation fan 17, the heat dissipation fan 17 sets up to be fixed on the left side wall of rear housing 10 right wall, heat dissipation fan 17 is relative about with louvre 16, heat dissipation fan 17 passes through the wire and is connected with power among the functional unit, heat dissipation fan 17 can send the interior book of louvre 16 with the interior hot air of rear housing 10 out, reaches radiating effect.

A layer of rubber pad 15 is fixed on the inner side wall of the sealing cover 14, and the rubber pad 15 fills gaps between the sealing cover 14 and the heat dissipation holes 16, so that a waterproof effect is achieved.

The right side wall of the sealing cover 14 is provided with anti-slip threads 18, and the anti-slip threads 18 facilitate the extraction of the sealing cover 14 from the right wall of the rear shell 10.

The button switch structure comprises copper sheets 28, wherein the copper sheets 28 are of arc-shaped plate structures, two copper sheets 28 are respectively attached to the left wall and the right wall of a jack at the bottom end of a concave groove on the top side wall of the first plug 23, the two copper sheets 28 are connected to openings of conducting wires, and the copper sheets 28 are disconnected from the conducting wires; the button 29 is cylindrical, the button 29 is arranged in a groove in the top side wall of the first plug 23, a copper column 30 is fixed at the central part of the bottom side wall of the button 29, the button 29 moves downwards to drive the copper column 30 to move downwards, so that the copper column 30 is inserted into the jacks, and the two copper sheets 28 are communicated; the spring 31 and the spring 31 are fixed in a groove on the top side wall of the first plug 23, the top end of the spring 31 is fixedly connected with the bottom side wall of the button 29, and the spring 31 applies upward force to the button 29 to reset the button 29.

The utility model discloses a theory of operation: when in use, the cover plate 11 is opened, and the microcomputer relay protection tester is connected with an external power supply; inserting a first plug 23 of a connecting line into the port 21, inserting a second plug 24 into a jack of the circuit connection point to be tested, and when an error occurs after the connection of each port and the jack is finished, pressing a button switch on the first plug 23 to enable the lamp bead 26 to be communicated with the battery 27, and enabling the lamp bead 26 on the second plug 24 to flicker, so that a user can quickly find the circuit connection point to be tested into which the second plug 24 is inserted, and check whether the circuit connection point is correct or not; when the host computer generates heat, the sealing plate 14 is rotated to the right side to expose the heat dissipation holes 16, the heat dissipation fan 17 is powered on, the heat dissipation fan 17 rolls out hot air in the rear case 10 from the heat dissipation holes 16, and cold air enters the inner cavity of the rear case 10 from the heat dissipation holes 16 to achieve the heat dissipation effect. The utility model discloses be convenient for investigate dislocation connecting wire, and have heat dispersion.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A microcomputer relay protection tester is characterized by comprising,

the shell comprises a rear shell (10), wherein the rear shell (10) is of a cuboid shell structure, functional components are installed in an inner cavity of the rear shell (10), a plurality of input and output ports (21) are formed in through holes in the front side wall of the rear shell (10), and the rear shell (10) plays a role in supporting and protecting an internal structure; the cover plate (11), the cover plate (11) is a rectangular plate-shaped structure, the top end of the cover plate (11) is connected with the front lower edge of the rear shell (10) through a connecting shaft, the cover plate (11) rotates upwards to cover the front wall of the rear shell (10) and plays a role in protecting the upper part of the front wall of the rear shell (10);

the functional component structurally comprises a computer, a host part of the computer is arranged at the rear part of a cavity of a rear shell, a display screen (20) of the computer is arranged in a through hole at the right part of the front side wall of the rear shell (10), the display screen (20) is used as an output display interface, a DSP (digital signal processor) system, a D/A (digital/analog) converter and an A/D (analog/digital) converter are arranged in the host, and the host has the function of processing information; the high-precision linear voltage source is provided with a current power amplifier, the high-precision linear voltage source can output high-precision linear voltage, and the current power amplifier is coupled to output alternating current and direct current waveforms; the direct current power supply is arranged in the cavity in the rear shell (10), and the direct current power supply can directly output direct current voltage;

the connecting wire structure comprises a connecting wire main body, the connecting wire main body comprises an electric wire (25) and a plug, the left end of the electric wire (25) is connected with a first plug (23), the right end of the electric wire (25) is connected with a second plug (24), the first plug (23) is inserted into a port (21), the second plug (24) is inserted into a circuit jack to be tested, and the connecting wire plays a role in guiding current; the lamp bead (26) is arranged in a groove in the front side wall of the second plug (24), a battery (27) is arranged in a groove in the left side wall of the second plug (24), the lamp bead (26) and the battery (27) form a loop through a conducting wire, and the lamp bead (26) flickers to find a circuit connection point to be tested corresponding to the port (21); button switch, button switch set up in the top side wall groove of a plug (23), button switch passes through the wire and connects on the return circuit of battery (27) and lamp pearl (26), when button switch closed, lamp pearl (26) on No. two plugs (24) twinkle.

2. The microcomputer relay protection tester according to claim 1, wherein: a keyboard (22) is fixed in a groove on the top side wall of the cover plate (11), the keyboard (22) is connected with a host through a data line, and the keyboard (22) is used as an input device of a computer.

3. The microcomputer relay protection tester according to claim 1, wherein: the ports (21) comprise a switching value input port, a voltage output port, a current output port, a switching value output port and a fixed output port.

4. The microcomputer relay protection tester according to claim 1, wherein: and a power amplifier switch, a grounding binding post, a reset button, a fuse, a host switch, a notebook interface and a USB interface are arranged in the through hole of the front side wall of the rear shell (10).

5. The microcomputer relay protection tester according to claim 1, wherein: the heat dissipation mechanism is arranged on the right wall of the rear shell (10), the structure part of the heat dissipation mechanism comprises a sealing cover (14), the sealing cover (14) is of a rectangular plate-shaped structure, the sealing cover (14) is arranged in a groove on the right side wall of the rear shell (10), the top end of the sealing cover (14) is connected with the rear shell (10) through a fixed shaft, a plurality of through holes which are heat dissipation holes (16) are arranged on the wall of the rear shell (10) on the left side of the sealing cover (14), the heat dissipation holes (16) are convenient for a host to dissipate heat, and the heat dissipation holes (16) can be sealed by; heat dissipation fan (17), heat dissipation fan (17) set up to be fixed on the left side wall of backshell (10) right side wall, it is relative about heat dissipation fan (17) and louvre (16), heat dissipation fan (17) are connected through power among wire and the functional unit, heat dissipation fan (17) can send the interior book out of louvre (16) with backshell (10) hot air, reach radiating effect.