CN213750283U - A connect and insert structure and detection device for rack fuse on-line measuring - Google Patents
A connect and insert structure and detection device for rack fuse on-line measuring Download PDFInfo
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- CN213750283U CN213750283U CN202022198557.4U CN202022198557U CN213750283U CN 213750283 U CN213750283 U CN 213750283U CN 202022198557 U CN202022198557 U CN 202022198557U CN 213750283 U CN213750283 U CN 213750283U
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Abstract
The utility model belongs to the technical field of nuclear power maintenance, concretely relates to connect spigot structure and detection device for rack fuse on-line measuring. This detection connector for rack fuse on-line measuring's detection device of this disclosed embodiment can connect the fuse terminal under the electrified condition of not opening the switch, fuse, with the signal nondestructive transmission on the fuse terminal for detection circuitry, can not lead to the fact the influence to the control system of operation, is favorable to getting rid of the hidden danger when control system moves, improves stability. In addition, during detection, the tip of the probe can pierce through the surface oxide layer of the fuse terminal and tightly contact with the binding screw.
Description
Technical Field
The utility model belongs to the technical field of the nuclear power maintenance, concretely relates to connect plug structure and detection device for rack fuse on-line measuring.
Background
In the related art, fuses are arranged in switching value loops of cabinets of Distributed Control Systems (DCS) of nuclear power stations, when faults occur to cause the fuses in the cabinets to be fused, the switching value loops of the cabinets are disconnected, the traditional DCS cabinets of the nuclear power stations cannot indicate the phenomenon that the fuses are fused, and therefore under the condition that the fuses of the DCS cabinets are fused, if the clamping pieces of the cabinets send signals, due to the fact that the switching value loops are disconnected, DCS field equipment cannot act, and therefore the states of the fuses need to be effectively checked and guaranteed.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problems in the related art, the invention provides an inserting structure and a detection device for online detection of cabinet fuses.
According to an aspect of the embodiments of the present disclosure, there is provided a socket structure for on-line detection of a cabinet fuse, the socket structure for on-line detection of a cabinet fuse includes: a plurality of probes, a base, and a housing;
the base is arranged in the shell;
the base comprises a printed circuit board and a plurality of first sleeves connected to the printed circuit board;
a plurality of through holes are formed in the surface of the shell, and one end of each probe penetrates through one through hole to be connected into a first sleeve on the printed circuit board;
in the plurality of probes, every two probes form a group, each group of probes is connected with a voltage sensor through a first sleeve and a circuit on the printed circuit board, so that a detection channel is formed, and the voltage sensor is used for detecting the on-off state of a plurality of fuses of the cabinet;
when a plurality of fuses of the cabinet are detected, the other end of each probe is a tip, the tip of one probe in each group of probes is connected with one terminal of one fuse, the tip of another probe in each group of probes is connected with the other terminal of the fuse, and the tip of each probe can puncture an oxide layer on the surface of the connected terminal.
In one possible implementation, for each probe, the probe comprises a movable part, a spring and a second sleeve;
one end of the second sleeve is connected with the first sleeve corresponding to the probe, one end of the spring is connected into the second sleeve, the other end of the spring is connected with one end of the movable part, the other end of the movable part is a tip, and the movable part can be retracted into the second sleeve by pressing the tip of the movable part.
In one possible implementation, for each probe, the tip of the movable part of the probe remains outside the second sleeve of the probe when the spring of the probe is compressed up to the elastic limit.
In a possible implementation manner, the plugging structure for online detection of the cabinet fuse further comprises a plurality of screws;
one end of each first sleeve is connected with one bonding pad on the printed circuit board, and the inner wall of one end of each first sleeve is provided with threads;
each screw penetrates through one pad and is in threaded connection with the inner wall of the first sleeve corresponding to the pad so as to fix the first sleeve on the printed circuit board.
In one possible implementation, each first sleeve is soldered to an opposite pad.
In one possible implementation, a spacer is provided between each first sleeve and the opposing pad.
In one possible implementation, the distance between the pads is greater than the creepage distance of the printed circuit board.
In one possible implementation, the plurality of probes are arranged in a rectangular array.
In one possible implementation, each set of probes is connected to the voltage sensor through a connected first sleeve, traces on the printed circuit board, and a serial interface.
According to another aspect of the embodiments of the present disclosure, a detection apparatus for on-line detection of a cabinet fuse is provided, where the detection apparatus for on-line detection of a cabinet fuse includes the above-mentioned plug-in structure for on-line detection of a cabinet fuse, and a voltage sensor.
The beneficial effects of the utility model reside in that: this detection connector for rack fuse on-line measuring's detection device of this disclosed embodiment can connect the fuse terminal under the electrified condition of not opening the switch, fuse, with the signal nondestructive transmission on the fuse terminal for detection circuitry, can not lead to the fact the influence to the control system of operation, is favorable to getting rid of the hidden danger when control system moves, improves stability. In addition, during detection, the tip of the probe can pierce through the surface oxide layer of the fuse terminal and tightly contact with the binding screw.
Drawings
Fig. 1 is a perspective view of a patching structure for on-line detection of cabinet fuses, according to an exemplary embodiment.
Fig. 2 is a schematic diagram illustrating connection of a plugging structure for on-line detection of cabinet fuses and terminals of fuses to be tested according to an exemplary embodiment.
FIG. 3 is a partial cross-sectional view of a patching structure for in-line detection of cabinet fuses, according to an exemplary embodiment.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a perspective view of a patching structure for on-line detection of cabinet fuses, according to an exemplary embodiment. As shown in fig. 1, the plugging structure for online detection of cabinet fuses may include: a plurality of probes 10, a base (not shown in the figure), and a housing 11;
the base may be arranged within the housing 11 and may comprise a printed circuit board 12 (not shown in the figures) and a plurality of first sleeves (not shown in the figures, the material of which may for example comprise copper) which may be connected to the printed circuit board 12.
The surface of the housing 11 may be provided with a plurality of through holes, each through hole may be aligned with a first sleeve, and one end of each probe 10 may be connected to a first sleeve on the printed circuit board 12 through one through hole. The housing 11 may be made of an insulating material to ensure the safety of the inspection personnel, and the housing 11 may have a handle.
In the plurality of probes 10, every two probes 10 can form a group, each group of probes 10 is connected with the detection loop of the voltage sensor through the connected first sleeve and the circuit on the printed circuit board 12, thus, each group of probes 10 and the detection loop of the voltage sensor connected with the group of probes 10 form a detection channel, and each detection channel can detect the on-off state of the connected fuse 13.
Fig. 2 is a schematic diagram illustrating connection of a plugging structure for on-line detection of cabinet fuses and terminals of fuses to be tested according to an exemplary embodiment. As shown in fig. 2, a plurality of probes 10 may be fixedly connected to the printed circuit board 12, and terminals 14 may be provided at two ends of each fuse 13, and the relative position between each group of probes 10 may be adapted to the relative position of the terminals 14 at two ends of the corresponding fuse 13, such that, when detecting a plurality of fuses 13 of the cabinet, the plurality of probes 10 of the plugging structure of the embodiment of the present disclosure may simultaneously contact the terminals 14 of a plurality of fuses 13 to be detected, in each group of probes 10, a tip of one probe 10 is connected to one terminal 14 of one fuse 13, and a tip of another probe 10 in the group of probes 10 is connected to another terminal 14 of the fuse 13, and the tip of each probe 10 can pierce an oxide layer on the surface of the connected terminal 14, so that the probe 10 can tightly contact with a binding screw, and when detecting, the plurality of probes can be connected to the terminals of a plurality of fuses to be detected at one time, the detection of the on-off states of the plurality of fuses can be realized more efficiently. The voltage sensor may display data indicating the on-off state of a plurality of fuses to be tested.
It should be noted that, the voltage sensor is represented as a sensor for detecting a measured voltage and converting the measured voltage into a usable output signal, the voltage sensor may be, for example, a voltage transformer or an optical fiber voltage sensor, and an applicable voltage sensor may be selected according to needs.
FIG. 3 is a partial cross-sectional view of a patching structure for in-line detection of cabinet fuses, according to an exemplary embodiment. As shown in fig. 3, for each probe 10, the probe 10 may include a movable portion 101, a spring 103, and a second sleeve 102; one end of the second sleeve 102 can be connected to the first sleeve 104 corresponding to the probe 10, one end of the spring 103 can be connected to the second sleeve 102, the other end of the spring 103 is connected to one end of the movable portion 101, the other end of the movable portion 101 is a tip, and the movable portion 101 can be retracted into the second sleeve 102 by pressing the tip of the movable portion 101. In this way, when the plurality of probes 10 are pressed against the corresponding fuse terminals, if the terminals are not located on the same plane, the springs 103 of the probes 10 can expand and contract, so that the length of each probe 10 can adapt to different positions of different terminals, the tips of the probes 10 can fully contact the corresponding terminals, and the occurrence of poor contact between part of the probes 10 and the corresponding terminals due to uneven height of each terminal can be effectively avoided.
In a possible implementation, for each probe 10, when the spring 103 of the probe 10 is compressed up to the elastic limit, the tip of the movable part 101 of the probe 10 is still located outside the second sleeve 102 of the probe 10. In this way, the tip of the probe 10 is prevented from being excessively retracted into the second sleeve 102 and out of contact with the corresponding terminal 14. Good contact of the probe 10 with the corresponding terminal 14 is further ensured.
In one possible implementation, as shown in fig. 3, each first sleeve 104 may be connected to a pad (not shown) on the printed circuit board 12, one end of each first sleeve 104 is connected to a pad on the printed circuit board 12, and an inner wall of one end of each first sleeve 104 is threaded; each screw 15 passes through one of the pads and is threaded into engagement with the inner wall of the corresponding first sleeve 104 to secure the first sleeve to the printed circuit board. In addition, each first sleeve and the opposite pad can be welded, so that the connection stability of the first sleeve and the pad is further improved.
In one possible implementation, a spacer is provided between each first sleeve and the opposing pad.
In one possible implementation, the spacing between the pads is greater than the creepage distance for the printed circuit board. Therefore, even if the probe is mistakenly connected with 220V (volt) alternating current, the system where the cabinet is located cannot be influenced, and the safety of the cabinet can be ensured.
In a possible implementation manner, the plurality of probes are arranged in a rectangular array, and the distribution state of each probe can be adapted to the distribution state of each fuse terminal of the cabinet according to needs.
In one possible implementation, each set of probes is connected to the voltage sensor via a connected first sleeve, traces on the printed circuit board, and a serial interface. For example, if the number of the probes is 12, the connection between the detection connector and the detection circuit can be realized by 24 wires in the DB25 wires, and the DB25 wire is connected with the PCB through an XH2.54-12P plug, so that the plugging and the replacement are convenient.
In a possible implementation manner, a detection device for online detection of a cabinet fuse is provided, and the detection device for online detection of a cabinet fuse may include the above-mentioned plugging structure for online detection of a cabinet fuse, and a voltage sensor, and the detection device for online detection of a cabinet fuse has been described in the above-mentioned description of the plugging structure for online detection of a cabinet fuse, and is not described herein again.
Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terms used herein were chosen in order to best explain the principles of the embodiments, the practical application, or technical improvements to the techniques in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (10)
1. The utility model provides a connect and insert structure for cabinet fuse on-line measuring which characterized in that, a connect and insert structure for cabinet fuse on-line measuring includes: a plurality of probes, a base, and a housing;
the base is arranged in the shell;
the base comprises a printed circuit board and a plurality of first sleeves connected to the printed circuit board;
a plurality of through holes are formed in the surface of the shell, and one end of each probe penetrates through one through hole to be connected into a first sleeve on the printed circuit board;
in the plurality of probes, every two probes form a group, each group of probes is connected with a voltage sensor through a first sleeve and a circuit on the printed circuit board, so that a detection channel is formed, and the voltage sensor is used for detecting the on-off state of a plurality of fuses of the cabinet;
when a plurality of fuses of the cabinet are detected, the other end of each probe is a tip, the tip of one probe in each group of probes is connected with one terminal of one fuse, the tip of another probe in each group of probes is connected with the other terminal of the fuse, and the tip of each probe can puncture an oxide layer on the surface of the connected terminal.
2. The socket structure for the on-line detection of the cabinet fuse according to claim 1, wherein the probe comprises a movable part, a spring and a second sleeve for each probe;
one end of the second sleeve is connected with the first sleeve corresponding to the probe, one end of the spring is connected into the second sleeve, the other end of the spring is connected with one end of the movable part, the other end of the movable part is a tip, and the movable part can be retracted into the second sleeve by pressing the tip of the movable part.
3. The socket structure for the on-line detection of the cabinet fuse as claimed in claim 2, wherein for each probe, when the spring of the probe is compressed to reach the elastic limit, the tip of the movable part of the probe is still located outside the second sleeve of the probe.
4. The socket structure for the on-line detection of the cabinet fuse according to claim 1, wherein the socket structure for the on-line detection of the cabinet fuse further comprises a plurality of screws;
one end of each first sleeve is connected with one bonding pad on the printed circuit board, and the inner wall of one end of each first sleeve is provided with threads;
each screw penetrates through one pad and is in threaded connection with the inner wall of the first sleeve corresponding to the pad so as to fix the first sleeve on the printed circuit board.
5. The socket structure for the in-line detection of cabinet fuses of claim 4, wherein each first sleeve is welded to an opposite pad.
6. The socket structure for the cabinet fuse online detection according to claim 4, wherein a gasket is disposed between each first sleeve and the opposite pad.
7. The connector structure for the cabinet fuse on-line detection as recited in claim 4, wherein the distance between the pads is greater than the creepage distance of the printed circuit board.
8. The socket structure for the on-line detection of the cabinet fuse as claimed in claim 1, wherein the plurality of probes are arranged in a rectangular array.
9. The socket structure for cabinet fuse online detection according to claim 1, wherein each group of probes is connected with the voltage sensor through the connected first bushing, the lines on the printed circuit board and the serial interface.
10. A detection device for on-line detection of a cabinet fuse, characterized in that the detection device for on-line detection of a cabinet fuse comprises the plugging structure for on-line detection of a cabinet fuse according to any one of claims 1 to 9, and a voltage sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022198557.4U CN213750283U (en) | 2020-09-30 | 2020-09-30 | A connect and insert structure and detection device for rack fuse on-line measuring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022198557.4U CN213750283U (en) | 2020-09-30 | 2020-09-30 | A connect and insert structure and detection device for rack fuse on-line measuring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213750283U true CN213750283U (en) | 2021-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022198557.4U Active CN213750283U (en) | 2020-09-30 | 2020-09-30 | A connect and insert structure and detection device for rack fuse on-line measuring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213750283U (en) |
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2020
- 2020-09-30 CN CN202022198557.4U patent/CN213750283U/en active Active
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