CN203561719U - Ground wire connection state detecting and alarming device, and power source - Google Patents
Ground wire connection state detecting and alarming device, and power source Download PDFInfo
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- CN203561719U CN203561719U CN201320704668.5U CN201320704668U CN203561719U CN 203561719 U CN203561719 U CN 203561719U CN 201320704668 U CN201320704668 U CN 201320704668U CN 203561719 U CN203561719 U CN 203561719U
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- ground wire
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- connection status
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Abstract
The utility model relates to a ground wire connection state detecting and alarming device, and a power source. The device can be mounted inside the power source. The power source has an access end used for inputting electric energy and equipped with a ground wire. The ground wire connection state detecting and alarming device includes a ground wire connection state detecting circuit connected with the ground wire and used for detecting whether the ground wire is connected with the ground; and an alarming apparatus connected with the ground wire connection state detecting circuit and used for alarming if the ground wire is not connected with the ground. The advantages of the utility model are that the device can timely detect whether a ground wire in a power source is connected with the ground, and if the ground wire is not connected with the ground, then the ground wire is not connected normally or a contact failure problem occurs, thus the alarming apparatus can emit signals to remind a user.
Description
Technical field
The utility model relates to the detection of a kind of ground wire connection status and warning device and power supply.
Background technology
Most consumers all have power supply (can be that built-in power supply can be also external adapter form), and its accessible power supply base obtains electric energy and offers consumer.
For the power supply with the incoming end of three pins, three pins connect respectively its inner live wire (L), zero line (N) and ground wire (FG, or PE), during actual use, we need to and guarantee that by the dead ground of FG line contact is good, and the wiring problem of often building due to socket place in actual applications, or power access end has inserted off-gauge supply socket, cause only having L line to be normally connected with N line, FG line is not connected or loose contact, FG line is earth-free so, will produce some electrical problems, for example, cannot effectively eliminate electromagnetic radiation, even there is the hidden danger of electric leakage, cause personal injury.
For fear of there is the earth-free danger causing of FG line, just necessarily require:
1, check building wiring, require the ground wire (connecting power supply FG line) in building to be really connected to the earth, shortcoming is: need to pass through hand inspection, check the ground path of building, waste time and energy.
2, test socket, even if be three pin sockets of power supply standard of replacement, shortcoming is: need opening power socket to check circuit, waste time and energy.
As can be seen here, above-mentioned operation is all wasted time and energy, and obviously still has in the use inconvenience and defect.The design people is research and innovation in addition actively, to founding the detection of a kind of ground wire connection status and warning device and power supply, automatically realizes the warning to user when the ground wire of power supply is unearthed.
Utility model content
Fundamental purpose of the present utility model is, a kind of detection of ground wire connection status and warning device and power supply of new structure are provided, technical matters to be solved is, when how the ground wire in power supply is unearthed, user is carried out to automatic alarm, thereby be more suitable for practicality.
The purpose of this utility model and solve its technical matters and realize by the following technical solutions.According to a kind of ground wire connection status the utility model proposes, detect and warning device, can be arranged in power supply, described power supply has for inputting the incoming end of electric energy, on described incoming end, there is ground wire, described ground wire connection status detects and warning device comprises: ground wire connection status testing circuit, connect described ground wire, detect whether ground connection of described ground wire; Panalarm, connects described ground wire connection status testing circuit, when described ground wire is unearthed, reports to the police.
The purpose of this utility model and solve its technical matters and also can be applied to the following technical measures to achieve further.
Preferably, aforesaid ground wire connection status detects and warning device, described ground wire connection status testing circuit comprises: voltage sampling circuit, in described power supply, there is internal reference ground, described voltage sampling circuit connects the internal reference ground of described ground wire and described power supply, and the voltage of described ground wire is sampled; Voltage comparator circuit, connects described voltage sampling circuit and described panalarm, sampled voltage and preset reference voltage is compared, and to described panalarm output high level or low level signal, represents whether ground connection of described ground wire.
Preferably, aforesaid ground wire connection status detects and warning device, also comprises: voltage setting apparatus, connect described voltage comparator circuit, and for described preset reference voltage is set, and export to described voltage comparator circuit.
Preferably, aforesaid ground wire connection status detects and warning device, and described panalarm comprises pilot lamp and hummer.
Preferably, aforesaid ground wire connection status detects and warning device, described power supply has for exporting the output terminal of electric energy, can connect consumer and power to described consumer, described ground wire connection status detects and warning device also comprises: power-supplying circuit, connect described ground wire connection status testing circuit and described output terminal, when described ground wire is unearthed, cut off described output terminal to the power supply of described consumer.
The purpose of this utility model and solve that its technical matters also realizes by the following technical solutions.According to a kind of power supply the utility model proposes, be used to consumer power supply, comprising: aforesaid ground wire connection status detects and warning device.
The purpose of this utility model and solve its technical matters and also can be applied to the following technical measures to achieve further.
Preferably, aforesaid power supply, the external power supply that described power supply is described consumer or built-in power.
By technique scheme, ground wire connection status of the present utility model detection and warning device and power supply at least have following advantages:
By ground wire connection status testing circuit, can detect in time whether ground connection of ground wire in power supply, if there is the problem of normal connection or loose contact in unearthed explanation ground wire, now can send signal by panalarm, user is pointed out, avoid power supply to power in the unearthed situation of ground wire, thus the hidden danger of eliminating danger, whole process does not need socket and building wiring to carry out hand inspection, has saved man power and material.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of instructions, below with preferred embodiment of the present utility model and coordinate accompanying drawing to be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is according to the ground wire connection status detection of an embodiment of the present utility model and the schematic diagram of warning device;
Fig. 2 is according to the ground wire connection status detection of an embodiment of the present utility model and the ground wire connection status testing circuit schematic diagram of warning device;
Fig. 3 is according to the ground wire connection status detection of an embodiment of the present utility model and the circuit diagram of warning device;
Fig. 4 is according to the ground wire connection status detection of an embodiment of the present utility model and the ground wire connection status testing circuit schematic diagram of warning device;
Fig. 5 is according to the ground wire connection status detection of an embodiment of the present utility model and the schematic diagram of warning device;
Fig. 6 is according to the schematic diagram of the power supply of an embodiment of the present utility model.
Embodiment
For further setting forth the utility model, be to reach technological means and the effect that predetermined utility model object is taked, below in conjunction with accompanying drawing and preferred embodiment, the detection of ground wire connection status and warning device and its embodiment of power supply, structure, feature and effect thereof to according to the utility model proposes, be described in detail as follows.In following explanation, the not necessarily same embodiment that different " embodiment " or " embodiment " refer to.In addition, special characteristic, structure or the feature in one or more embodiment can be combined by any suitable form.
As shown in Figure 1, a kind of ground wire connection status that an embodiment of the present utility model proposes detects and warning device, this device can be arranged in power supply, this power supply has for inputting the incoming end 11 of electric energy, concrete form is generally the plug of three pins, can insert accordingly in the socket of three jacks, on incoming end 11, there is ground wire 12, ground wire connection status in the present embodiment detects and warning device mainly comprises: ground wire connection status testing circuit 21, connect ground wire 12, detect whether ground connection of ground wire 12, the detection of ground wire 12 Groundings can complete automatically, and do not need user to investigate the building at socket and socket place, manpower and waste of time have been avoided, panalarm 22, connects ground wire connection status testing circuit 21, when ground wire 12 is unearthed, reports to the police, and notifies in time user's power supply to have the unearthed problem of ground wire 12, thereby guarantees that user can process this situation in time, eliminates the hidden danger of causing danger.
Preferably, as shown in Figure 2, another embodiment of the present utility model proposes a kind of ground wire connection status and detects and warning device, compare with above-described embodiment, the ground wire connection status of the present embodiment detects and warning device, and ground wire connection status testing circuit 21 specifically can comprise: voltage sampling circuit 23, has internal reference ground 13 in power supply, voltage sampling circuit 23 connects the internal reference ground 13 of ground wire 12 and power supply, and the voltage of ground wire 12 is sampled, voltage comparator circuit 24, connect voltage sampling circuit 23 and panalarm 22, sampled voltage and preset reference voltage are compared, and to panalarm 22 output high level or low level signals, represent whether ground connection of ground wire, in ground wire 12 ground connection and earth-free situation, ground wire 12 is different from the voltage between internal reference ground 13, if this voltage is too high, illustrate that ground wire 12 is unearthed, voltage sampling circuit 23 in the present embodiment and voltage comparator circuit 24 implement all very simple, can complete by simple and effective form collection and the comparison of voltage, a kind of specific implementation of voltage sampling circuit 23 and voltage comparator circuit 24 can be as shown in Figure 3, wherein, CY1: isolation capacitance, C1:Bulk electric capacity, C2: filter capacitor, R1: divider resistance, R2: divider resistance, D1: rectification diode, CY1, R1, R2, D1, C2 forms voltage sampling circuit 23, it will be appreciated by those skilled in the art that realize the sampling of voltage and the circuit of comparing function have various, so voltage sampling circuit 23 and voltage comparator circuit 24 are not limited to form illustrated in fig. 3.
Preferably, as shown in Figure 4, another embodiment of the present utility model proposes a kind of ground wire connection status and detects and warning device, compare with above-described embodiment, the ground wire connection status of the present embodiment detects and warning device, can also comprise: voltage setting apparatus 25, connect voltage comparator circuit 24, be used for arranging preset reference voltage, and export to voltage comparator circuit 24, because preset reference voltage need to compare with the voltage at ground wire 12 up-samplings, under different environment, the voltage differences sampling is larger, so the technical scheme of the present embodiment can guarantee the preset reference voltage for comparing and also can adjust at any time, to adapt to the detection under varying environment.
Preferably, another embodiment of the present utility model proposes a kind of ground wire connection status and detects and warning device, compare with above-described embodiment, the ground wire connection status of the present embodiment detects and warning device, panalarm 22 comprises pilot lamp and hummer, pilot lamp specifically can adopt the lamp of the sent visible ray of LED lamp or other types, the technician of the present embodiment is to be understood that, the selection of panalarm 22 is varied, and other equipment that can export the signal that acousto-optic or other forms of user can perceive can be selected.
Preferably, as shown in Figure 5, another embodiment of the present utility model proposes a kind of ground wire connection status and detects and warning device, compare with above-described embodiment, the ground wire connection status of the present embodiment detects and warning device, power supply has for exporting the output terminal 14 of electric energy, can connect consumer and power to consumer, ground wire connection status detects and warning device also comprises: power-supplying circuit 26, connect ground wire connection status testing circuit 21 and output terminal 14, when ground wire 12 is unearthed, cut off output terminal 14 to the power supply of consumer, forbid in the present embodiment that consumer carries out work under the unearthed state of ground wire 12, avoid consumer to occur abnormal.
As shown in Figure 6, a kind of power supply that an embodiment of the present utility model proposes, be used to consumer power supply, comprise: according to the ground wire connection status of previous embodiment, detect and warning device 3, known according to the technical scheme of previous embodiment, ground wire connects that filling detects and warning device 3 can detect whether ground connection of ground wire in time, and user is reported to the police ground wire is unearthed, so the power supply of the present embodiment with regard to integrated for equipment power supply and detect ground wire connection status and report to the police enrich function, mate probability that abnormal damage appears in the consumer using with this power supply still less.
Preferably, another embodiment of the present utility model proposes a kind of power supply, compares with above-described embodiment, the power supply of the present embodiment, power supply 3 can be external power supply (adopting the form of external adapter) or the built-in power of consumer, can design according to consumer, and mode is flexible.
According to above embodiment, ground wire connection status of the present utility model detection and warning device and power supply at least have following advantages:
By ground wire connection status testing circuit, can detect in time whether ground connection of ground wire in power supply, if there is the problem of normal connection or loose contact in unearthed explanation ground wire, now can send signal by panalarm, user is pointed out, avoid power supply to power in the unearthed situation of ground wire, thus the hidden danger of eliminating danger, whole process does not need socket and building wiring to carry out hand inspection, has saved man power and material.
The above, it is only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, although the utility model discloses as above with preferred embodiment, yet not in order to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solutions of the utility model, any simple modification of above embodiment being done according to technical spirit of the present utility model, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (7)
1. ground wire connection status detects and a warning device, can be arranged in power supply, and described power supply has for inputting the incoming end of electric energy, on described incoming end, has ground wire, it is characterized in that, described ground wire connection status detects and warning device comprises:
Whether ground wire connection status testing circuit, connects described ground wire, detect described ground wire ground connection;
Panalarm, connects described ground wire connection status testing circuit, when described ground wire is unearthed, reports to the police.
2. ground wire connection status according to claim 1 detects and warning device, it is characterized in that, described ground wire connection status testing circuit comprises:
Voltage sampling circuit, has internal reference ground in described power supply, described voltage sampling circuit connects the internal reference ground of described ground wire and described power supply, and the voltage of described ground wire is sampled;
Voltage comparator circuit, connects described voltage sampling circuit and described panalarm, sampled voltage and preset reference voltage is compared, and to described panalarm output high level or low level signal, represents whether ground connection of described ground wire.
3. ground wire connection status according to claim 2 detects and warning device, it is characterized in that, also comprises:
Voltage setting apparatus, connects described voltage comparator circuit, for described preset reference voltage is set, and exports to described voltage comparator circuit.
4. ground wire connection status according to claim 1 detects and warning device, it is characterized in that, described panalarm comprises pilot lamp and hummer.
5. according to the ground wire connection status described in any one in claim 1 to 4, detect and warning device, it is characterized in that, described power supply has for exporting the output terminal of electric energy, can connect consumer and power to described consumer, and described ground wire connection status detects and warning device also comprises:
Power-supplying circuit, connects described ground wire connection status testing circuit and described output terminal, when described ground wire is unearthed, cuts off described output terminal to the power supply of described consumer.
6. a power supply, is used to consumer power supply, it is characterized in that, comprising:
According to the ground wire connection status described in any one in claim 1 to 5, detect and warning device.
7. power supply according to claim 6, is characterized in that,
Described power supply is external power supply or the built-in power of described consumer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320704668.5U CN203561719U (en) | 2013-11-08 | 2013-11-08 | Ground wire connection state detecting and alarming device, and power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320704668.5U CN203561719U (en) | 2013-11-08 | 2013-11-08 | Ground wire connection state detecting and alarming device, and power source |
Publications (1)
| Publication Number | Publication Date |
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| CN203561719U true CN203561719U (en) | 2014-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320704668.5U Expired - Fee Related CN203561719U (en) | 2013-11-08 | 2013-11-08 | Ground wire connection state detecting and alarming device, and power source |
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| CN (1) | CN203561719U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207062A (en) * | 2015-10-20 | 2015-12-30 | 宁波市锦达电器设备制造有限公司 | Self-checking power distribution cabinet |
| CN105676049A (en) * | 2016-01-18 | 2016-06-15 | 华为技术有限公司 | Circuit for detecting poor grounding |
| CN105759172A (en) * | 2016-03-31 | 2016-07-13 | 山东省计量科学研究院 | Active grounding system abnormality detection device |
| CN106207684A (en) * | 2015-05-08 | 2016-12-07 | 国网河南省电力公司漯河供电公司 | Multiport self-monitoring electrical test grounding device |
| CN107607830A (en) * | 2017-09-13 | 2018-01-19 | 广西电网有限责任公司电力科学研究院 | A kind of electrical equipment protective grounding state continuous monitoring method |
| CN108051615A (en) * | 2017-12-29 | 2018-05-18 | 国家电网公司 | A kind of detection type tester ground wire |
| CN108287289A (en) * | 2017-01-10 | 2018-07-17 | 华为技术有限公司 | Detection circuit and its detection method altogether |
| CN109031027A (en) * | 2018-08-31 | 2018-12-18 | 江西洪都航空工业集团有限责任公司 | A kind of ground state is shorted the test method of route |
| CN111722150A (en) * | 2020-06-24 | 2020-09-29 | 优利德科技(中国)股份有限公司 | Socket detection device and method supporting ground wire zero line abnormity detection |
| WO2022001962A1 (en) * | 2020-06-28 | 2022-01-06 | 中兴通讯股份有限公司 | Connection detection circuit, alarm device, and base station |
| WO2022048366A1 (en) * | 2020-09-04 | 2022-03-10 | 苏州浪潮智能科技有限公司 | Potential difference early warning circuit and system |
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2013
- 2013-11-08 CN CN201320704668.5U patent/CN203561719U/en not_active Expired - Fee Related
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106207684A (en) * | 2015-05-08 | 2016-12-07 | 国网河南省电力公司漯河供电公司 | Multiport self-monitoring electrical test grounding device |
| CN105207062A (en) * | 2015-10-20 | 2015-12-30 | 宁波市锦达电器设备制造有限公司 | Self-checking power distribution cabinet |
| CN105676049A (en) * | 2016-01-18 | 2016-06-15 | 华为技术有限公司 | Circuit for detecting poor grounding |
| CN105759172A (en) * | 2016-03-31 | 2016-07-13 | 山东省计量科学研究院 | Active grounding system abnormality detection device |
| CN105759172B (en) * | 2016-03-31 | 2018-08-21 | 山东省计量科学研究院 | Active earthed system abnormal detector and method |
| CN108287289B (en) * | 2017-01-10 | 2020-04-21 | 华为技术有限公司 | Common ground detection circuit and detection method thereof |
| CN108287289A (en) * | 2017-01-10 | 2018-07-17 | 华为技术有限公司 | Detection circuit and its detection method altogether |
| WO2018130129A1 (en) * | 2017-01-10 | 2018-07-19 | 华为技术有限公司 | Common ground detection circuit and detection method thereof |
| CN107607830A (en) * | 2017-09-13 | 2018-01-19 | 广西电网有限责任公司电力科学研究院 | A kind of electrical equipment protective grounding state continuous monitoring method |
| CN107607830B (en) * | 2017-09-13 | 2021-07-20 | 广西电网有限责任公司电力科学研究院 | Method for continuously monitoring protective grounding state of electrical equipment |
| CN108051615A (en) * | 2017-12-29 | 2018-05-18 | 国家电网公司 | A kind of detection type tester ground wire |
| CN109031027A (en) * | 2018-08-31 | 2018-12-18 | 江西洪都航空工业集团有限责任公司 | A kind of ground state is shorted the test method of route |
| CN111722150A (en) * | 2020-06-24 | 2020-09-29 | 优利德科技(中国)股份有限公司 | Socket detection device and method supporting ground wire zero line abnormity detection |
| CN111722150B (en) * | 2020-06-24 | 2021-03-26 | 优利德科技(中国)股份有限公司 | Socket detection device and method supporting ground wire zero line abnormity detection |
| WO2022001962A1 (en) * | 2020-06-28 | 2022-01-06 | 中兴通讯股份有限公司 | Connection detection circuit, alarm device, and base station |
| JP2023531801A (en) * | 2020-06-28 | 2023-07-25 | 中興通訊股▲ふん▼有限公司 | Connection detection circuit, alarm device and base station |
| EP4174508A4 (en) * | 2020-06-28 | 2023-12-27 | ZTE Corporation | Connection detection circuit, alarm device, and base station |
| JP7502481B2 (en) | 2020-06-28 | 2024-06-18 | 中興通訊股▲ふん▼有限公司 | Connection detection circuit, alarm device and base station |
| WO2022048366A1 (en) * | 2020-09-04 | 2022-03-10 | 苏州浪潮智能科技有限公司 | Potential difference early warning circuit and system |
| US11994565B2 (en) | 2020-09-04 | 2024-05-28 | Inspur Suzhou Intelligent Technology Co., Ltd. | Potential difference early-warning circuit and system |
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| 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: 20140423 Termination date: 20191108 |
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| CF01 | Termination of patent right due to non-payment of annual fee |