CN202110238U - Grounding state detector of electronic control cabinet - Google Patents
Grounding state detector of electronic control cabinet Download PDFInfo
- Publication number
- CN202110238U CN202110238U CN2011202381442U CN201120238144U CN202110238U CN 202110238 U CN202110238 U CN 202110238U CN 2011202381442 U CN2011202381442 U CN 2011202381442U CN 201120238144 U CN201120238144 U CN 201120238144U CN 202110238 U CN202110238 U CN 202110238U
- Authority
- CN
- China
- Prior art keywords
- grounding body
- power supply
- relay
- electronic control
- control cabinet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a grounding state detector of an electronic control cabinet. The grounding state detector is characterized in that a main grounding body is connected with a relay, a first power supply and a detecting grounding body in series to form into a grounding state detecting loop; and a second power supply, an alarm device and a normally closed contact of the relay are connected with one another in series to form into an alarm loop. The grounding state detector of the electronic control cabinet can be used for detecting the grounding state of the electronic control cabinet on the line continuously, sending an alarm signal in case of bad grounding, and definitely prompting an user, so that the safety protection of the user can be provided.
Description
Technical field
The utility model relates to a kind of ground state pick-up unit of electrical control cubicles.
Background technology
Good ground connection is safe important assurance, and it can prevent electric leakage, electric shock accidents effectively.
Receive the erosion of the air oxidation of rainwater burn into, corrosive gas, the influence of vibrations, loosening, the inefficacy that can cause grounding body to be electrically connected.The electrical control cubicles of particularly using out of doors often receives the restriction of local condition sometimes, causes the construction of grounding body to encounter difficulties.
People's subjectivity also can not be ignored, and in the place of ask for something with the supervision absent-mindedness, the somebody can scheme convenient for the moment, and has ignored the attention for ground connection.
Just at last grounding body, existing electrical control cubicles having been arranged also is can't the situation of ground connection be detected, and particularly detects anywhere or anytime; Can't know whether ground connection meets the demands; Can only with the naked eye observe, or with multimeter carry out irregularly, once in a while test, can't satisfy at any time detection, supervision for the electrical control cubicles ground state; Under the situation of, wet environment bad, can bring great hidden danger to safe operation unavoidably at electric insulation.
The utility model content
To the deficiency of prior art, the utility model provides a kind of ground state pick-up unit of electrical control cubicles, can detect the ground connection situation of electrical control cubicles in real time, incessantly, and under the situation of imperfect earth, send alerting signal.
The technical scheme that the utility model adopts is following:
Main grounding body and relay, first power supply, detection grounding body are connected in series, and form ground state and detect the loop; The normally closed contact of second source and warning device, relay is connected in series successively, forms alarm circuit.
Further, the shell of described main grounding body and electrical control cubicles is connected.
Further, described first power supply and second source are same power supply.
The utlity model has following good technique effect:
Adopt the ground state pick-up unit of a kind of electrical control cubicles of the utility model; Can detect the ground connection situation of electrical control cubicles in real time, incessantly; And under the situation of imperfect earth, send alerting signal, and can be to the user with clear and definite prompting, thus can safeguard protection be provided to the user.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Accompanying drawing is the theory diagram of an embodiment of the utility model.
Among the figure: 1, main grounding body, 2, detect grounding body, 3, relay, 4, first power supply, 5, the relay normally closed contact, 6, the relay normally closed contact, 7, warning device, 8, second source.
Embodiment
Referring to accompanying drawing, main grounding body 1 is connected with relay 3, another termination the earth of main grounding body 1.One utmost point of first power supply 4 is connected with relay 3, and another utmost point of first power supply 4 is connected with detection grounding body 2, detects another termination the earth of grounding body 2, forms ground state and detects the loop.Second source 8 is connected in series with warning device 7, relay normally closed contact 5, relay normally closed contact 6 successively, forms alarm circuit.
When main grounding body 1 and detection grounding body 2 good earths; First power supply 4 is through detecting grounding body 2, main grounding body 1, relay 3 formation ground states detection loops; Relay 3 gets electric adhesive; Relay normally closed contact 5 and relay normally closed contact 6 transfer off-state to by closure state, and alarm circuit quits work.
When main grounding body 1 breaks off; First power supply 4 can not form electric loop through detection grounding body 2, main grounding body 1, relay 3; Relay normally closed contact 5 is in closure state with relay normally closed contact 6; Second source 8 constitutes electric loop with warning device 7, relay normally closed contact 5, relay normally closed contact 6, and starting warning device 7 sends alerting signal.
Further, the shell of described main grounding body 1 and electrical control cubicles is connected, and it is as the ground protection of electrical control cubicles.
Further, described first power supply 4 is same power supply with second source 8.First power supply 4 can use the civil power in the electrical control cubicles with second source 8, for safety, can be low-voltage safety voltage with the civil power transformation.
Claims (3)
1. the ground state pick-up unit of an electrical control cubicles is characterized in that:
Main grounding body and relay, first power supply, detection grounding body are connected in series, and form ground state and detect the loop; The normally closed contact of second source and warning device, relay is connected in series successively, forms alarm circuit.
2. the ground state pick-up unit of a kind of electrical control cubicles according to claim 1, it is characterized in that: the shell of described main grounding body and electrical control cubicles is connected.
3. the ground state pick-up unit of a kind of electrical control cubicles according to claim 1,, it is characterized in that: described first power supply and second source are same power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202381442U CN202110238U (en) | 2011-06-29 | 2011-06-29 | Grounding state detector of electronic control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202381442U CN202110238U (en) | 2011-06-29 | 2011-06-29 | Grounding state detector of electronic control cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202110238U true CN202110238U (en) | 2012-01-11 |
Family
ID=45435684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202381442U Expired - Fee Related CN202110238U (en) | 2011-06-29 | 2011-06-29 | Grounding state detector of electronic control cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202110238U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109358257A (en) * | 2018-09-11 | 2019-02-19 | 广州医科大学附属第三医院（广州重症孕产妇救治中心、广州柔济医院） | A kind of medical x-ray machine grounding body detection device |
-
2011
- 2011-06-29 CN CN2011202381442U patent/CN202110238U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109358257A (en) * | 2018-09-11 | 2019-02-19 | 广州医科大学附属第三医院（广州重症孕产妇救治中心、广州柔济医院） | A kind of medical x-ray machine grounding body detection device |
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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: 20120111 Termination date: 20140629 |
|
| EXPY | Termination of patent right or utility model |