CN202393816U - High-voltage electrified display device - Google Patents
High-voltage electrified display device Download PDFInfo
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- CN202393816U CN202393816U CN2011204522498U CN201120452249U CN202393816U CN 202393816 U CN202393816 U CN 202393816U CN 2011204522498 U CN2011204522498 U CN 2011204522498U CN 201120452249 U CN201120452249 U CN 201120452249U CN 202393816 U CN202393816 U CN 202393816U
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Abstract
The utility model provides a high-voltage electrified display device and belongs to the technical field of high-voltage electric protection. The high-voltage electrified display device conveniently operates a device to be tested, and is strong in antijamming capability, high in measurement accuracy, good in safety, high in error-resistance reliability, simple in structure, small in volume, low in cost and convenient to mount. The high-voltage electrified display device comprises a voltage inductive sensor, a display unit, an interlocking unit and a lighting unit, wherein the voltage inductive sensor is used for detecting whether the device to be tested is electrified; the input end of the display unit is connected with the output end of the voltage inductive sensor, and the display unit is used for displaying the electrifying state of the device to be tested; the input end of the interlocking unit is connected with the output end of the display unit, and the interlocking unit is used for interlocking the device to be tested when the device to be tested is electrified; and the lighting unit is used for lighting the device to be tested. The high-voltage electrified display device disclosed by the utility model can be applied to indoor high-voltage electric device with the frequency of 50Hz and the rated voltage of 10-35kv.
Description
Technical field
The utility model belongs to electrification in high voltage resist technology field, is specifically related to a kind of high voltage display device.
Background technology
High voltage display device is to be used to prevent the critical facility to the electric misoperation of high voltage electric equipment or circuit; Whether it can detect high voltage electric equipment charged; And show that through modes such as luminous, sounding equipment under test is in electriferous state, simultaneously with charged equipment under test locking in case user's mistakenly entering charged chamber and produce danger.
High voltage display device mainly comprises post insulator style high voltage display device and the charged display device of induction-type high-voltage.Wherein, the post insulator style high voltage display device needs directly to contact with high voltage electric equipment, is easy to generate danger such as puncture.Whether charged and the charged display device of induction-type high-voltage is as shown in Figure 1, mainly comprises: bus the voltage induced sensor that is used to respond to high voltage electric equipment; Be used to show the display unit of equipment under test electriferous state; In order to when equipment under test is charged with the locking unit of its locking.
But the inventor finds that existing high voltage display device has following shortcoming at least:
At first; Be used for dark surrounds (for example switch board) that the environment that tested high voltage electric equipment is operated is sealed often; Throw light on or want equipment under test set inside illuminating lamp etc. so operation the time also need be held torch etc., promptly trouble possibly cause danger again, and the cost height.
In addition; Though though the charged display device security of existing induction-type high-voltage is good, it adopts induction mode to obtain equipment under test voltage, so measurement result receives the interference of extraneous factor easily; Poor accuracy; The instability of this measurement result also can make the WV also unstable (because the WV reality in the locking unit is produced by induction) in the locking unit simultaneously, thereby causes wrong locking or release etc., and reliability is low.
The utility model content
The utility model technical matters to be solved comprises; To the problem that high voltage display device inconvenience of the prior art is operated equipment under test, provide a kind of can be conveniently to equipment under test keep in repair, the high voltage display device of operation such as wiring.
The technical scheme that solution the utility model technical matters is adopted is a kind of high voltage display device, and it comprises:
In order to detect the whether charged voltage induced sensor of equipment under test;
Display unit, its input end links to each other with the output terminal of said voltage induced sensor, in order to show the electriferous state of said equipment under test;
Locking unit, its input end links to each other with the output terminal of said display unit, in order to when said equipment under test is charged with said equipment under test locking;
With thinking that said equipment under test provides the lighting unit of illumination.
Preferably, the voltage induced sensor that comprises the three-phase supply of three corresponding said equipment under tests of difference.
Preferably, said voltage induced sensor holds core rod type voltage induced sensor for taking out piezoelectricity.
Preferably, the output terminal of said voltage induced sensor is also through voltage dependent resistor (VDR) ground connection.
Preferably, said display unit comprises the display switch that whether shows in order to control.
Preferably, said locking unit comprises the closed block that is used to carry out locking, and links to each other through photoisolator between the input end of said locking unit and said closed block.
Preferably, said locking unit comprises the closed block that is used to carry out locking, and said closed block is an electromagnetic lock.
Preferably, said locking unit comprises in order to show the locking display unit of blocking.
Preferably, said lighting unit comprises: in order to connect the link of external power supply;
In order to luminous luminescence unit; In order to control the whether luminous light switch of said luminescence unit.
Preferably, said high voltage display device is an indoor high-voltage chargeding displaing device.
Owing to be provided with lighting unit in the high voltage display device of the utility model, can be equipment under test illumination is provided, therefore when equipment under test being carried out operation such as wiring, maintenance, need not hold electric torch again, illuminating lamp etc. also needn't be set in equipment under test; So the high voltage display device of the utility model is convenient and safe, can save the space in the cabinet, cost is low.
Simultaneously, take out piezoelectricity appearance core rod type voltage induced sensor owing to use in the high voltage display device of the utility model, hold the plug detection accurately and take out piezoelectricity, receive ectocine few, so its security is good, do not have the puncture risk, antijamming capability is strong; And owing in locking unit, have photoisolator, so closed block reality can control through light signal, thereby eliminated the interference of equipment under test power supply to block sytem, increased anti-error reliability.
In a word, the high voltage display device of the utility model have can be conveniently strong to operation, the antijamming capability of equipment under test, measure that accuracy is high, good, the anti-error reliability of security is high, simple in structure, volume is little, cost is low, easy for installation.
The high voltage display device of the utility model is specially adapted in the indoor high-voltage electrical equipment of frequency 50Hz, rated voltage 10～35kV.
Description of drawings
Fig. 1 is the framework map of existing high voltage display device;
Fig. 2 is the framework map of high voltage display device of the embodiment 1 of the utility model;
Fig. 3 is the circuit diagram of display unit of indoor high-voltage chargeding displaing device of the embodiment 2 of the utility model;
Fig. 4 is the partial circuit figure of locking unit of indoor high-voltage chargeding displaing device of the embodiment 2 of the utility model;
Fig. 5 is the partial circuit figure of locking unit of indoor high-voltage chargeding displaing device of the embodiment 2 of the utility model;
Fig. 6 is the circuit diagram of lighting unit of indoor high-voltage chargeding displaing device of the embodiment 2 of the utility model.
Embodiment
For making those skilled in the art understand the technical scheme of the utility model better, the utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
Embodiment 1:
As shown in Figure 2, present embodiment provides a kind of high voltage display device, and it comprises:
In order to detect the whether charged voltage induced sensor of equipment under test.
Display unit, its input end links to each other with the output terminal of voltage induced sensor, in order to show the electriferous state of equipment under test.
Locking unit, its input end links to each other with the output terminal of display unit, in order to when equipment under test is charged with the equipment under test locking.
With thinking that equipment under test provides the lighting unit of illumination.This lighting unit can independently be provided with respect to other unit of high voltage display device, also can link to each other with display unit etc. and controlled by it.
Owing to be provided with lighting unit in the high voltage display device of present embodiment, can be equipment under test illumination is provided, therefore when equipment under test being carried out operation such as wiring, maintenance, need not hold electric torch again, illuminating lamp etc. also needn't be set in equipment under test; So the high voltage display device of present embodiment can be conveniently to the operation of equipment under test, and can save space in the cabinet, reduce cost.
Simultaneously, the high voltage display device of present embodiment also has advantages such as security is good, simple in structure, volume is little, easy for installation.
Embodiment 2:
To shown in Figure 6, present embodiment provides a kind of indoor high-voltage chargeding displaing device like Fig. 3, and it comprises:
In order to detect the whether charged voltage induced sensor of equipment under test.This voltage induced sensor can be any through induction mode measure on the equipment under test (as being the bus of equipment) sensor with voltage; Preferably; It holds core rod type voltage induced sensor for taking out piezoelectricity; Because the measurement result of this sensor is accurate, receive the influence of extraneous factor little, reliability is high.Preferably, the voltage induced sensor is three, and promptly each voltage induced sensor is used to detect the bus of a phase power supply of equipment under test, thereby can independently measure the situation of each phase power supply respectively.Preferably, the output terminal U of each voltage induced sensor, V, W also can pass through voltage dependent resistor (VDR) ground connection (not shown), in case detected voltage when excessive quilt such as display unit burn out.
Display unit, its input end links to each other with output terminal U, V, the W of voltage induced sensor, in order to show the electriferous state of equipment under test.Fig. 3 is a kind of circuit structure diagram of display unit, and obviously, the concrete structure of display unit also can be other different form, in this just narration no longer one by one.Preferably; As shown in Figure 3; Display unit comprises three independently branch roads; The input end of three branch roads links to each other with output terminal U, V, the W of three voltage induced sensors respectively, thereby when output terminal U, V, the W of certain voltage induced sensor had voltage (this phase power supply that is its detection is charged), the light emitting diode D1 in the corresponding branch road, D2, D3 will be luminous charged to show this phase power supply; The output terminals A C1 of three branch roads, AC2, AC3 then all link to each other with the input end of locking unit; Therefore as long as any phase power supply of equipment under test is charged; Just have among three output terminals A C1, AC2, the AC3 then that at least one is charged, thereby the control locking unit is with the equipment under test locking.Preferably, also comprise the display switch K1 that whether shows in order to control in the display unit, through adjustment display switch K1, can determine whether light emitting diode D1, D2, D3 are connected in the circuit, thereby whether the control display unit shows; Like this, can only in the time will operating, just show, avoid generally light emitting diode D1, D2, D3 normal bright and cause interferences, waste energy etc. equipment under test; Wherein, even when not showing, the output terminal U of voltage induced sensor, V, W still are communicated with (just this moment, electric current was only through light emitting diode D1, D2, D3) with output terminals A C1, AC2, the AC3 of display unit, to guarantee the work of locking unit.Certainly,, also can comprise conventional elements such as resistance, electric capacity in the display unit, be not described in detail at this for realizing required function.
Locking unit, its input end DC+, DC-link to each other with output terminals A C1, AC2, the AC3 of display unit, in order to when equipment under test is charged with the equipment under test locking.Fig. 4 and Fig. 5 are a kind of circuit structure diagram of locking unit, and wherein the two ends U1 among Fig. 4 is exactly the two ends U1 among Fig. 5, and promptly Fig. 4 is the two parts that circuit diagram links to each other with Fig. 5, just for clear it are separately represented.Obviously, the concrete structure of locking unit also can be other different form, in this just narration no longer one by one.Can comprise the closed block that is used to carry out locking in the locking unit, this closed block is preferably electromagnetic lock 2, and this is because electromagnetic lock 2 safe and reliable to operation.Preferably, like Fig. 4 and shown in Figure 5, link to each other through photoisolator 1 between the input end DC+ of this locking unit, DC-and closed block (being electromagnetic lock 2).Wherein, rectification is to merge behind the direct current through the rectifier bridge (not shown) for three output terminals A C1 of display unit, AC2, AC3, links to each other with input end DC+, the DC-of locking unit; When any voltage induced sensor arrives voltage; Input end DC+, the DC-of locking unit also have voltage, thereby the light emitting diode D5 of photoisolator 1 control side is luminous, makes the phototriode BG1 conducting of photoisolator 1 controlled side; Thereby make not conducting of two-way controlled thyristor T1; Can not form the loop after electromagnetic lock (has power supply) the 2 process rectifier bridge Z1 rectifications itself, thereby electromagnetic lock forbids that with lockings such as switch board door, isolating switch, ground wires the user operates; And when three voltage induced sensors all do not detect voltage; The input end DC+ of locking unit, the input of DC-no-voltage, the light emitting diode D5 of photoisolator 1 is not luminous, and phototriode BG1 breaks off; Two-way controlled thyristor T1 conducting; Form the loop through two-way controlled thyristor T1 after the electromagnetic lock 2 process rectifier bridge Z1 rectifications, thereby electromagnetic lock breaks off, and allows the user to operate equipment under test.Preferably, also wrap the locking display unit that to draw together in order to the demonstration blocking in the locking unit; For example comprise the light emitting diode D4 among Fig. 4, when the voltage induced sensor during to voltage (being that equipment under test is charged) light emitting diode D4 continue luminously, the expression equipment under test is in blocking.Certainly,, also can comprise conventional elements such as resistance, electric capacity, polar capacitor, triode, bilateral diode in the locking unit, be not described in detail at this for realizing required function.
Lighting unit, it is with thinking that equipment under test provides illumination.Fig. 6 is a kind of circuit structure diagram of lighting unit, and obviously, the concrete structure of lighting unit also can be other different form, in this just narration no longer one by one.Preferably, as shown in Figure 6, lighting unit can comprise: in order to connect the link U2 of external power supply (like the 220V power supply); In order to luminous luminescence unit (this sentences three light emitting diode D6, D7, D8 is example, and each light emitting diode D6, D7, D8 can be contained in a phase power supply place), in order to illumination to be provided; Whether luminous in order to control luminescence unit light switch K2, it can be installed in the outer position that is easy to contact of waiting of switch board, so that operation.When operations such as the user will keep in repair equipment under test, wiring, can open light switch K2, illumination so just can be provided, handled easily.Certainly,, also can comprise other conventional element in the display unit, the rectification circuit of for example forming, be used for resistance of dividing potential drop or the like, be not described in detail at this by diode and electric capacity for realizing required function.
Obviously, the high voltage display device of above-mentioned each embodiment also can carry out many variations; For example: also can only measure with a voltage induced sensor, respective display unit also has only one the tunnel; Replacement light emitting diodes such as also available bulb, generator show charged or blocking in display unit and the locking unit; High voltage display device also can not comprise closed block, and only has the output terminal that is used to control closed block, and closed block then is installed on the equipment under test in advance; Closed block also can be electric mortise lock, magnetic force lock etc.; Luminescence unit also can be bulb etc.; External power supply that also can be independent in the lighting unit and be not with light switch, and use the power supply (promptly luminous automatically when electromagnetic lock breaks off) with the electromagnetic lock interlock.
It is understandable that above embodiment only is the illustrative embodiments that adopts for the principle that the utility model is described, yet the utility model is not limited thereto.For the one of ordinary skilled in the art, under the situation of spirit that does not break away from the utility model and essence, can make various modification and improvement, these modification and improvement also are regarded as the protection domain of the utility model.
Claims (10)
1. high voltage display device comprises:
In order to detect the whether charged voltage induced sensor of equipment under test;
Display unit, its input end links to each other with the output terminal of said voltage induced sensor, in order to show the electriferous state of said equipment under test;
Locking unit, its input end links to each other with the output terminal of said display unit, in order to when said equipment under test is charged with said equipment under test locking;
It is characterized in that said high voltage display device also comprises:
With thinking that said equipment under test provides the lighting unit of illumination.
2. high voltage display device according to claim 1 is characterized in that,
The voltage induced sensor that comprises the three-phase supply of three corresponding said equipment under tests of difference.
3. high voltage display device according to claim 1 is characterized in that,
Said voltage induced sensor holds core rod type voltage induced sensor for taking out piezoelectricity.
4. high voltage display device according to claim 1 is characterized in that,
The output terminal of said voltage induced sensor is also through voltage dependent resistor (VDR) ground connection.
5. high voltage display device according to claim 1 is characterized in that,
Said display unit comprises the display switch that whether shows in order to control.
6. high voltage display device according to claim 1 is characterized in that,
Said locking unit comprises the closed block that is used to carry out locking, and links to each other through photoisolator between the input end of said locking unit and said closed block.
7. high voltage display device according to claim 1 is characterized in that,
Said locking unit comprises the closed block that is used to carry out locking, and said closed block is an electromagnetic lock.
8. high voltage display device according to claim 1 is characterized in that,
Said locking unit comprises in order to show the locking display unit of blocking.
9. high voltage display device according to claim 1 is characterized in that, said lighting unit comprises:
In order to connect the link of external power supply;
In order to luminous luminescence unit;
In order to control the whether luminous light switch of said luminescence unit.
10. according to any described high voltage display device in the claim 1 to 9, it is characterized in that,
Said high voltage display device is an indoor high-voltage chargeding displaing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204522498U CN202393816U (en) | 2011-11-15 | 2011-11-15 | High-voltage electrified display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204522498U CN202393816U (en) | 2011-11-15 | 2011-11-15 | High-voltage electrified display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202393816U true CN202393816U (en) | 2012-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204522498U Expired - Fee Related CN202393816U (en) | 2011-11-15 | 2011-11-15 | High-voltage electrified display device |
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| CN (1) | CN202393816U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015161611A1 (en) * | 2014-04-24 | 2015-10-29 | 肖金丽 | Inductive high-voltage live display apparatus for power line |
| CN105048436A (en) * | 2015-08-25 | 2015-11-11 | 国家电网公司 | Protection device for preventing high voltage from entering secondary equipment in series |
| CN110098721A (en) * | 2015-04-07 | 2019-08-06 | 意法半导体(图尔)公司 | Rectify bridge control circuit |
-
2011
- 2011-11-15 CN CN2011204522498U patent/CN202393816U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015161611A1 (en) * | 2014-04-24 | 2015-10-29 | 肖金丽 | Inductive high-voltage live display apparatus for power line |
| CN110098721A (en) * | 2015-04-07 | 2019-08-06 | 意法半导体(图尔)公司 | Rectify bridge control circuit |
| CN105048436A (en) * | 2015-08-25 | 2015-11-11 | 国家电网公司 | Protection device for preventing high voltage from entering secondary equipment in series |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20121115 |