CN204065189U - Leakage-current alarm type ammeter box - Google Patents
Leakage-current alarm type ammeter box Download PDFInfo
- Publication number
- CN204065189U CN204065189U CN201420417746.8U CN201420417746U CN204065189U CN 204065189 U CN204065189 U CN 204065189U CN 201420417746 U CN201420417746 U CN 201420417746U CN 204065189 U CN204065189 U CN 204065189U
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- Prior art keywords
- ammeter box
- leakage
- hummer
- alarm
- light emitting
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- 230000006641 stabilisation Effects 0.000 claims abstract description 4
- 238000011105 stabilization Methods 0.000 claims abstract description 4
- 230000002457 bidirectional effect Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 4
- 208000027418 Wounds and injury Diseases 0.000 abstract description 2
- 230000006378 damage Effects 0.000 abstract description 2
- 208000014674 injury Diseases 0.000 abstract description 2
- 206010014357 Electric shock Diseases 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
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Abstract
The utility model discloses a kind of leakage-current alarm type ammeter box, it relates to electric system ammeter box technical field, it comprises ammeter box and leakage alarm, the positive pole of leakage alarm is connected with the housing of the zero line in ammeter box and ammeter box respectively with negative pole, leakage alarm comprises commutation diode, first resistance, diac, hummer and light emitting diode, hummer is parallel with the second resistance, leakage alarm has also comprised the electric capacity of pressure stabilization function, hummer and light emitting diode are exposed to outside the housing of ammeter box, it can be used for ammeter box in electric system and alternative traditional, it has installed leakage alarm additional on traditional ammeter box, the safe condition of ammeter box can be pointed out, avoid injury of getting an electric shock, and remind people that the electric leakage situation to ammeter box processes in time, the personal safety of protection related personnel, it is simple that it has structure, advantage with low cost, and alarm is sensitive, safe and reliable, very practical.
Description
Technical field
The utility model relates to electric system ammeter box technical field.
Background technology
Rural power system work in guarantee operation of power networks is numerous and diverse, and arduous task, wherein generally uses various ammeter box, and these ammeter boxes are used for the electrical equipments such as ammeter, are ingredients indispensable in rural power system.
During circuit maintenance; staff often will to all kinds of ammeter box and and electric equipment wherein carry out direct operation; therefore the security of ammeter box has just been related to the personal safety of staff; especially the impact of some special weathers is subject to; the shell of ammeter box often can leak electricity; to checking meter, the staff such as maintenance causes electric shock; although ammeter box all can do grounding usually; but still can not ensure that staff completely not by the impact of leakage current, also cannot can warn the personnel not possessing electricity general knowledge.
Application number is that the utility model patent of CN201320515246.3 discloses a kind of Intelligent ammeter box with leakage-current alarm, this ammeter box can give the alarm when leaking electricity, but its circuit is comparatively complicated, cost is higher, in addition, its technical scheme is the ammeter box for intelligent electric meter, can not be transplanted in the various ammeter boxes of rural power system simply.
Utility model content
The technical problems to be solved in the utility model is for above-mentioned the deficiencies in the prior art, a kind of leakage-current alarm type ammeter box is provided, it installs leakage alarm additional on traditional ammeter box, whole apparatus structure is simple, can overhaul to circuit, safe condition that the staff such as ammeter ' s reading meter points out ammeter box, its leakage alarm circuit is also very simple, and element used is cheap, common to be easy to get.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of leakage-current alarm type ammeter box, it comprises ammeter box and leakage alarm, the positive pole of leakage alarm is connected with the housing of the zero line in ammeter box and ammeter box respectively with negative pole, leakage alarm comprises commutation diode, the first resistance, diac, hummer and light emitting diode, hummer is parallel with the second resistance, leakage alarm has also comprised the electric capacity of pressure stabilization function, and hummer and light emitting diode are exposed to outside the housing of ammeter box.
As preferably, commutation diode, the first resistance, diac, hummer are connected in turn with light emitting diode, electric capacity and one section of circuit in parallel from diac to light emitting diode.
As preferably, diac is bidirectional trigger diode.
As preferably, the model of hummer is PZ1FMQ-2724.
The beneficial effect adopting technique scheme to produce is: the utility model has installed leakage alarm additional on traditional ammeter box, can overhaul to circuit, the staff such as ammeter ' s reading meter point out the safe condition of ammeter box, the electric shock injury avoiding them to be subject to, and remind people that the electric leakage situation to ammeter box processes in time, the personal safety of protection related personnel, it comprises with diac is the leakage current detection circuit of core, and send multiple alarm by hummer and light emitting diode, its structure is simple, with low cost, and alarm is sensitive, safe and reliable, very practical.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the circuit diagram of leakage alarm in Fig. 1.
In figure: 1, ammeter box; 2, chamber door; 3, leakage alarm; 4, hummer; 5, light emitting diode.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment 1:
As Fig. 1, 2, shown in 3, a kind of leakage-current alarm type ammeter box, it comprises ammeter box 1 and leakage alarm 3, the positive pole of leakage alarm 3 is connected with the zero line in ammeter box 1, the negative pole of leakage alarm 3 is connected with the housing of ammeter box 1, leakage alarm 3 comprises commutation diode D1 in sequential series, first resistance R1, bidirectional trigger diode DB3, hummer 4 and light emitting diode 5, hummer 4 is parallel with the second resistance R2, one section of circuit from bidirectional trigger diode DB3 to light emitting diode 5 is parallel with (comprising bidirectional trigger diode DB3 and light emitting diode 5) the electric capacity C1 of pressure stabilization function in the of, leakage alarm 3 is arranged on the chamber door 2 of ammeter box 1, hummer 4 and light emitting diode 5 are exposed to outside the chamber door 2 of ammeter box 1, wherein the model of diode D1 is 1N4001, the resistance of resistance R1 is 33000 ohm, the forward breakover voltage of bidirectional trigger diode DB3 is 28 volts, the resistance of resistance R2 is 390 ohm, the model of hummer 4 is PZ1FMQ-2724, the model of light emitting diode 5 is L12170, when electrical leakage voltage reaches 24 volts, bidirectional trigger diode DB3 conducting, thus make light emitting diode 5 luminous, hummer 4 is sounded.
The utility model can be used in electric system; it can substitute traditional ammeter box; it has installed leakage alarm additional on traditional ammeter box, can overhaul, safe condition that the staff such as ammeter ' s reading meter points out ammeter box to circuit, and the electric shock avoiding them to be subject to injures; and remind people that the electric leakage situation to ammeter box processes in time; the personal safety of protection related personnel, it has structure advantage simple, with low cost, and alarm is sensitive; safe and reliable, very practical.
Claims (4)
1. a leakage-current alarm type ammeter box, it is characterized in that: comprise ammeter box (1) and leakage alarm (3), the positive pole of described leakage alarm (3) is connected with the housing of the zero line in described ammeter box (1) and described ammeter box (1) respectively with negative pole, described leakage alarm (3) comprises commutation diode, first resistance, diac, hummer (4) and light emitting diode (5), described hummer (4) is parallel with the second resistance, described leakage alarm (3) has also comprised the electric capacity of pressure stabilization function, described hummer (4) and described light emitting diode (5) are exposed to outside the housing of described ammeter box (1).
2. leakage-current alarm type ammeter box according to claim 1, it is characterized in that described commutation diode, the first resistance, diac, hummer (4) and light emitting diode (5) are in sequential series, described electric capacity is in parallel with described diac, hummer (4) and light emitting diode (5) three.
3. leakage-current alarm type ammeter box according to claim 1, is characterized in that described diac is bidirectional trigger diode.
4. leakage-current alarm type ammeter box according to claim 1, is characterized in that the model of described hummer (4) is PZ1FMQ-2724.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420417746.8U CN204065189U (en) | 2014-07-28 | 2014-07-28 | Leakage-current alarm type ammeter box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420417746.8U CN204065189U (en) | 2014-07-28 | 2014-07-28 | Leakage-current alarm type ammeter box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204065189U true CN204065189U (en) | 2014-12-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420417746.8U Expired - Fee Related CN204065189U (en) | 2014-07-28 | 2014-07-28 | Leakage-current alarm type ammeter box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204065189U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104678142A (en) * | 2015-03-18 | 2015-06-03 | 国网辽宁省电力有限公司丹东供电公司 | Automatic safety warning circuit of electric energy metering box |
| CN105842504A (en) * | 2016-06-17 | 2016-08-10 | 国家电网公司 | Zero line disconnection alerter |
| CN105866493A (en) * | 2016-05-27 | 2016-08-17 | 徐州呼机械制造有限公司 | Electric meter box with electric leakage detection function |
| CN112462296A (en) * | 2020-11-05 | 2021-03-09 | 广东电网有限责任公司阳江供电局 | Be applied to electrified alarm device at power consumption monitor terminal |
| CN113421379A (en) * | 2021-06-16 | 2021-09-21 | 深圳市先行电气技术有限公司 | Multifunctional intelligent electric meter |
-
2014
- 2014-07-28 CN CN201420417746.8U patent/CN204065189U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104678142A (en) * | 2015-03-18 | 2015-06-03 | 国网辽宁省电力有限公司丹东供电公司 | Automatic safety warning circuit of electric energy metering box |
| CN105866493A (en) * | 2016-05-27 | 2016-08-17 | 徐州呼机械制造有限公司 | Electric meter box with electric leakage detection function |
| CN105842504A (en) * | 2016-06-17 | 2016-08-10 | 国家电网公司 | Zero line disconnection alerter |
| CN112462296A (en) * | 2020-11-05 | 2021-03-09 | 广东电网有限责任公司阳江供电局 | Be applied to electrified alarm device at power consumption monitor terminal |
| CN113421379A (en) * | 2021-06-16 | 2021-09-21 | 深圳市先行电气技术有限公司 | Multifunctional intelligent electric meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20190728 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |