CN203871490U - Terminal bar with wiring effectiveness detection function - Google Patents
Terminal bar with wiring effectiveness detection function Download PDFInfo
- Publication number
- CN203871490U CN203871490U CN201420288104.2U CN201420288104U CN203871490U CN 203871490 U CN203871490 U CN 203871490U CN 201420288104 U CN201420288104 U CN 201420288104U CN 203871490 U CN203871490 U CN 203871490U
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- China
- Prior art keywords
- terminal board
- wiring
- terminal bar
- pressure sensor
- checking function
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- 238000001514 detection method Methods 0.000 title claims abstract description 7
- 239000011521 glass Substances 0.000 claims abstract description 4
- 239000011888 foil Substances 0.000 claims description 20
- 238000012360 testing method Methods 0.000 claims description 18
- 238000010200 validation analysis Methods 0.000 claims description 18
- 230000003139 buffering effect Effects 0.000 claims description 9
- 125000006850 spacer group Chemical group 0.000 claims description 9
- 239000007943 implant Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model discloses a terminal bar with a wiring effectiveness detection function, and belongs to the field of electrical equipment. The terminal bar comprises multiple terminal bar bodies and guide rails which are used for fixing and installing the terminal bar bodies. The terminal bar bodies comprise a connecting base which is arranged at the bottom part, multiple connecting terminals which are installed above the connecting base, light-transmitting columns which sleeve the external side of the connecting terminals, and a detection circuit which is used for detecting wiring effectiveness of the connecting terminals. Tightening of screws of the terminal bar is detected via a pressure sensor. When the screws are not tightened, an indicating lamp is turned on and alarm is performed, and the indicating lamp is turned off until the screws are tightened. Then the state of wiring stretching into the terminal bar can be observed more clearly via the light-transmitting columns with a magnifying glass function. With application of the terminal bar, poor contact caused by the fact that the screws are not tightened or an insulation skin is accessed to the terminal bar is effectively avoided, and safety operation level and personnel work efficiency of a transformer station are enhanced.
Description
Technical field
The utility model relates to a kind of terminal board, particularly relates to a kind of terminal board with wiring validation checking function, belongs to field of electrical equipment.
Background technology
Terminal board is that carrying multiple or organize the terminal assemblies of mutually insulated the insulating element for fixing supporter more.The effect of terminal board is exactly that equipment in screen is connected with the circuit of screen external equipment, plays signal (current/voltage) transmitting effect.There is terminal board, made wiring attractive in appearance, easy to maintenance, when connection between long distance off-line, be mainly firm, construction and easy to maintenance.
Although the appearance of terminal board provides very big convenience to wiring, a screen cabinet just has up to a hundred terminals, and wiring huge amount causes the fault producing because of virtual connection line to happen occasionally.And in overhaul technological transformation work, reliable in order to ensure terminal row wiring, conventionally to, all terminal boards all tight a time, waste time and energy.Comprehensive analysis of failure, causes terminal virtual connection line to mainly contain two class reasons: the one, screw is not tightened, and causes loose contact; The 2nd, wire insulation sheet also accesses in terminal, causes the signal of telecommunication obstructed.Terminal connections quality does not pass a test and gently causes nonpassage of signal, the heavy crisis person and device security (as current circuit).
In view of this, the inventor studies this, develops specially a kind of terminal board with wiring validation checking function, and this case produces thus.
Utility model content
The purpose of this utility model is to provide a kind of terminal board with wiring validation checking function, and whether fast and effeciently detection terminal row wiring is good, causes failure rate thereby reduce because of terminal row wiring problem.
To achieve these goals, solution of the present utility model is:
A kind of terminal board with wiring validation checking function, comprise several terminal board bodies and for fixing, the guide rail of mounting terminal row body, described terminal board body comprises the Connection Block that is positioned at bottom, be arranged on several binding posts of Connection Block top, be set in the printing opacity post in binding post outside, and for detection of the testing circuit of binding post wiring validity, described testing circuit comprises pressure sensor, indicator light, amplifier, NAND gate, optocoupler and power module etc., wherein, pressure sensor is arranged on the brace of binding post bottom and the below of buffering spacer, the pressure signal of pressure sensor arrives NAND gate after amplifier amplifies, NAND gate being opened and being closed by level signal control optocoupler, and then the on and off of control indicator light, above-mentioned guide rail is ambroin structure, and implant both sides metal electrode, and power module is connected with the electrode of guide rail, and the Connection Block of terminal board body is provided with the contact electrode corresponding with guide rail electrode, thereby is embodied as the object of testing circuit power supply.
As preferably, above-mentioned terminal board body comprises 1-4 binding post, and described testing circuit comprises a corresponding 1-4 pressure sensor and indicator light.
As preferably, above-mentioned pressure sensor adopts piezoresistive pressure sensor, its chief component parts are foil gauge, foil gauge is arranged on brace and the buffering spacer below of binding post bottom, and in the time of the stressed generation STRESS VARIATION of buffering spacer, foil gauge also produces deformation together, the resistance of foil gauge is changed, change thereby make to be added in ohmically voltage, when foil gauge under tension, resistance value becomes large, and while being under pressure, resistance diminishes.
As preferably, the junction of the Connection Block of above-mentioned terminal board body and printing opacity column bottom is provided with a groove, be used for placing indicator light, the advantage of design is like this, indicator light can be indicated wiring situation, can illuminate binding post by printing opacity post again, insert situation even if also can see wiring clearly under half-light environment.
As preferably, above-mentioned printing opacity post adopts transparent organic glass material, and its end face is convex shape, forms convex lens, realizes enlarging function, makes staff can clearerly observe wiring and inserts situation, as whether conductor insulation sheath is access in binding post.
As preferably, above-mentioned amplifier, NAND gate, optocoupler, and be arranged on same circuit board with multiple resistance that pressure sensor forms balance bridge, described circuit board is placed in the middle of two binding posts, saves space, does not affect again wiring.
As preferably, the model that optocoupler is selected is TLP521, and NAND gate is selected 74HC00, and it is LM324 that amplifier is selected model.
As preferably, above-mentioned power module comprises that 220V alternating current turns 5V direct current unit, 9V direct current turns 5V direct current unit, and for switching the switch of above-mentioned two power supply units, adopt two-way power supply, can be mutually for subsequent use, both ensured the reliability of connecting terminal block, can make again its flexible Application in multiple environment.
When the above-mentioned terminal board with wiring validation checking function uses, first each terminal board body is arranged on guide rail by Connection Block, opening power module, power supply is by guide rail electrode, contact electrode is testing circuit power supply, now, each indicator light is open mode, facilitate staff's wiring, when staff accesses after wire, tighten binding post, pressure sensor is because be under pressure, resistance decreasing, electric bridge imbalance, output voltage is after amplifier amplifies, output high level, and NAND gate output low level now, thereby shutoff optocoupler, indicator light is extinguished.According to the state of indicator light, can intuitively distinguish terminal row wiring and whether tighten, for because of the loosening fault causing of terminal row wiring, investigate efficiency and greatly improve, also can effectively ensure newly to install the quality of wiring, improve installation effectiveness; By the printing opacity post with magnifying function, can intuitively observe the insertion position of wiring, avoid the phenomenons such as insertion depth is inadequate, pressure skin to occur.Adopt after the terminal board with wiring validation checking function described in the utility model, in overhaul, the operation of tight terminal board screw can be saved, and not affecting under safe prerequisite, has improved operating efficiency.
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is the terminal board body longitdinal cross-section diagram of the present embodiment;
Fig. 2 is the terminal board body vertical view of the present embodiment;
Fig. 3 is the guide rail vertical view of the present embodiment;
Fig. 4 is the testing circuit schematic diagram of the present embodiment;
Fig. 5 is the power module schematic diagram of the present embodiment.
Embodiment
A kind of terminal board with wiring validation checking function, comprise several terminal board bodies 1 and for fixing, the guide rail 2 of mounting terminal row body 1, as Figure 1-3, described terminal board body 1 comprises the Connection Block 11 that is positioned at bottom, be arranged on 2 binding posts 12 of Connection Block 11 tops, be set in the printing opacity post 13 in binding post 12 outsides, and for detection of the testing circuit of binding post wiring validity, described testing circuit comprises pressure sensor 14, indicator light 15, amplifier, NAND gate, optocoupler and power module etc., above-mentioned guide rail 2 is ambroin structure, implant both sides metal electrode 21, power module is connected with the electrode 21 of guide rail 2, the Connection Block 11 of terminal board body 1 is provided with the contact electrode corresponding with guide rail electrode 21 16, thereby be embodied as the object of testing circuit power supply.The Connection Block 11 of above-mentioned terminal board body 1 is provided with a groove 19 with the junction of printing opacity post 13 bottoms, be used for placing indicator light 15, the advantage of design is like this, indicator light 15 can be indicated wiring situation, can illuminate binding post by printing opacity post 13 again, insert situation even if also can see wiring clearly under half-light environment.
In the present embodiment, a terminal board body 1 is provided with two binding posts 12 in left and right, described testing circuit is also provided with corresponding 14 and 2 LED light 15 of 2 pressure sensors, described pressure sensor 14 adopts piezoresistive pressure sensor, its chief component parts are foil gauge, foil gauge is arranged on brace 17 and buffering spacer 18 belows of binding post 12 bottoms, buffering spacer 18 can play following effect: 1. in the time only having a side joint line, this side pressure connects when fastening, and opposite side can not trigger pressure sensor action; 2. ensure that binding post is crimped with certain dynamics, and brace 17 and pressure sensor 14 are insulated.Described printing opacity post 13 adopts transparent organic glass material, and its end face is convex shape, forms convex lens 131, realizes enlarging function, makes staff can clearerly observe wiring and inserts situation, as whether conductor insulation sheath is access in binding post 12.
As shown in Figure 4, described testing circuit comprises power module BT1, the first foil gauge Rx1, the second foil gauge Rx2, resistance R 1 ~ R10, the first amplifier U3A, the second amplifier U3B, NAND gate U2, the first optocoupler U1A, the second optocoupler U1B, the first indicator light DS1 and the second indicator light DS2, the first foil gauge Rx1 and resistance R 1, R2, R3 forms the first balance bridge, the second foil gauge Rx2 and resistance R 6, R7, R8 forms the second balance bridge, two groups of balancers are connected in parallel on power module, voltage signal output end respectively with the first amplifier U3A, the second amplifier U3B input is connected, two inputs 1 of the output NAND gate U2 of two amplifiers, 2 are connected, 2 outputs of NAND gate are connected with first optocoupler U1A box the second optocoupler U1B respectively, 2 outputs of the first optocoupler U1A are connected with respectively pull-up resistor R5 and the first indicator light DS1, input is connected with a drop-down resistance R 4, in like manner, 2 outputs of the second optocoupler U1B are connected with respectively pull-up resistor R7 and the second indicator light DS2, and input is connected with a drop-down resistance R 6.In the present embodiment, the model of 2 optocoupler selections is TLP521, and NAND gate U2 selects 74HC00, and it is LM324 that 2 amplifiers are selected models, resistance R 4, R5, R6, R7 are 100 Europe, indicator light 15 is LED light, and it is BF350 that pressure sensor 14 is selected model, and its foil gauge typical case output resistance is 350 ohm, while bearing pressure, resistance value diminishes, resistance R 1, R2, R3, R8, R9, R10 value are 350 ohm, and two terminal 12 bilateral symmetry, get a side analysis.In the time that the first foil gauge Rx1 bears pressure and is 0, bridge balance, output signal is that 0, the first amplifier U3A is output as 0, then is high level after NAND gate U2 circuit, the first optocoupler U1A is open-minded, thereby the first indicator light DS1 is lit; When the first foil gauge Rx1 bears after pressure, Rx resistance diminishes, electric bridge imbalance, output voltage, after the first amplifier U3A amplifies, is exported high level 5V, and its output connects a wherein input of a group of NAND gate U2, another input termination high level 5V of this group of NAND gate, NAND gate U2 output low level, thus turn-off the first optocoupler U1A, the first indicator light DS1 is extinguished.Above-mentioned resistance R 1 ~ R10, the first amplifier U3A, the second amplifier U3B, NAND gate U2, the first optocoupler U1A, the second optocoupler U1B design on same circuit board 19, described circuit board 19 is placed in the middle of two binding posts 12, circuit board 19 is connected with contact electrode 16 by wire 20, design saves space like this, does not affect again wiring.
As shown in Figure 5, above-mentioned power module comprises that 220V alternating current turns 5V direct current unit, 9V direct current turns 5V direct current unit, and for switching the switch of above-mentioned two power supply units, 220V alternating current is electric network source, and 9V direct current is dry cell power supply; The modular converter of two power supply units can directly be bought and obtain on market, adopts two-way power supply, can be mutually for subsequent use, both ensured the reliability of connecting terminal block, and can make again its flexible Application in multiple environment.
When the above-mentioned terminal board with wiring validation checking function uses, first each terminal board body 1 is arranged on guide rail 2 by Connection Block 11, opening power module, power supply is by guide rail electrode 21, contact electrode 16 is testing circuit power supply, now, 2 indicator lights 15 are open mode, facilitate staff's wiring, when staff accesses after wire, tighten binding post 12, when the stressed generation STRESS VARIATION of buffering spacer 18, foil gauge also produces deformation together, the resistance of foil gauge is changed, thereby making to be added in ohmically voltage changes, output voltage is after amplifier amplifies, output high level, and NAND gate output low level now, thereby shutoff optocoupler, indicator light 15 is extinguished.According to the state of indicator light, can intuitively distinguish terminal row wiring and whether tighten, for because of the loosening fault causing of terminal row wiring, investigate efficiency and greatly improve, also can effectively ensure newly to install the quality of wiring, improve installation effectiveness; By the printing opacity post 13 with magnifying function, can intuitively observe the insertion position of wiring, avoid the phenomenons such as insertion depth is inadequate, pressure skin to occur.Adopt after the terminal board with wiring validation checking function described in the utility model, in overhaul, the operation of tight terminal board screw can be saved, and not affecting under safe prerequisite, has improved operating efficiency.
Above-described embodiment and graphic and non-limiting product form of the present utility model and style, suitable variation or modification that any person of an ordinary skill in the technical field does it, all should be considered as not departing from patent category of the present utility model.
Claims (8)
1. the terminal board with wiring validation checking function, it is characterized in that: comprise several terminal board bodies and for fixing, the guide rail of mounting terminal row body, described terminal board body comprises the Connection Block that is positioned at bottom, be arranged on several binding posts of Connection Block top, be set in the printing opacity post in binding post outside, and for detection of the testing circuit of binding post wiring validity, described testing circuit comprises pressure sensor, indicator light, amplifier, NAND gate, optocoupler and power module etc., wherein, pressure sensor is arranged on the brace of binding post bottom and the below of buffering spacer, the pressure signal of pressure sensor arrives NAND gate after amplifier amplifies, NAND gate being opened and being closed by level signal control optocoupler, and then the on and off of control indicator light, above-mentioned guide rail is ambroin structure, and implant both sides metal electrode, and power module is connected with the electrode of guide rail, and the Connection Block of terminal board body is provided with the contact electrode corresponding with guide rail electrode, thereby is embodied as the object of testing circuit power supply.
2. a kind of terminal board with wiring validation checking function as claimed in claim 1, is characterized in that: described terminal board body comprises 1-4 binding post, described testing circuit comprises a corresponding 1-4 pressure sensor and indicator light.
3. a kind of terminal board with wiring validation checking function as claimed in claim 1, it is characterized in that: described pressure sensor adopts piezoresistive pressure sensor, its chief component parts are foil gauge, foil gauge is arranged on brace and the buffering spacer below of binding post bottom, in the time of the stressed generation STRESS VARIATION of buffering spacer, foil gauge also produces deformation together, and the resistance of foil gauge is changed.
4. a kind of terminal board with wiring validation checking function as claimed in claim 1, is characterized in that: the junction of the Connection Block of described terminal board body and printing opacity column bottom is provided with one for placing the groove of indicator light.
5. a kind of terminal board with wiring validation checking function as claimed in claim 4, is characterized in that: described printing opacity post adopts transparent organic glass material, and its end face is convex shape, forms convex lens.
6. a kind of terminal board with wiring validation checking function as claimed in claim 1, it is characterized in that: the amplifier in described testing circuit, NAND gate, optocoupler, and be arranged on same circuit board with multiple resistance of pressure sensor formation balance bridge, described circuit board is placed in the middle of two binding posts.
7. a kind of terminal board with wiring validation checking function as claimed in claim 1, is characterized in that: the model that institute's optocoupler is selected is TLP521, and NAND gate is selected 74HC00, and it is LM324 that amplifier is selected model.
8. a kind of terminal board with wiring validation checking function as claimed in claim 1, it is characterized in that: described power module comprises that 220V alternating current turns 5V direct current unit, 9V direct current turns 5V direct current unit, and for switching the switch of above-mentioned two power supply units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420288104.2U CN203871490U (en) | 2014-05-29 | 2014-05-29 | Terminal bar with wiring effectiveness detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420288104.2U CN203871490U (en) | 2014-05-29 | 2014-05-29 | Terminal bar with wiring effectiveness detection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203871490U true CN203871490U (en) | 2014-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420288104.2U Withdrawn - After Issue CN203871490U (en) | 2014-05-29 | 2014-05-29 | Terminal bar with wiring effectiveness detection function |
Country Status (1)
| Country | Link |
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| CN (1) | CN203871490U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037511A (en) * | 2014-05-29 | 2014-09-10 | 国网浙江省电力公司绍兴供电公司 | Terminal block having wiring validity detection function |
-
2014
- 2014-05-29 CN CN201420288104.2U patent/CN203871490U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037511A (en) * | 2014-05-29 | 2014-09-10 | 国网浙江省电力公司绍兴供电公司 | Terminal block having wiring validity detection function |
| CN104037511B (en) * | 2014-05-29 | 2016-02-10 | 国网浙江省电力公司绍兴供电公司 | A kind of terminal board with wiring validation checking function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141008 Effective date of abandoning: 20160210 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |