CN203800190U - Grounding device - Google Patents
Grounding device Download PDFInfo
- Publication number
- CN203800190U CN203800190U CN201420111346.4U CN201420111346U CN203800190U CN 203800190 U CN203800190 U CN 203800190U CN 201420111346 U CN201420111346 U CN 201420111346U CN 203800190 U CN203800190 U CN 203800190U
- Authority
- CN
- China
- Prior art keywords
- electrodes
- earthing
- earthing device
- permanent magnet
- safety circuit
- 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 - Lifetime
Links
- 230000001681 protective effect Effects 0.000 claims description 13
- 238000012360 testing method Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model discloses a grounding device (1). The grounding device (1) comprises an insulating base (4), two electrodes (3, 5), a permanent magnet (2), two wires (6, 7) and a safety circuit (8), wherein the two electrodes (3, 5) are fixed in the insulating base (4) and used for being contacted with a shell of equipment to be grounded in an conductive mode; the permanent magnet (2) is fixed in the insulating base (4), and enables the two electrodes (3, 5) to be relatively fixed with the shell of the equipment to be grounded and contacted with the shell of the equipment to be grounded in a conductive mode by using attraction between the permanent magnet (2) and the shell of the equipment to be grounded; and the two wires (6, 7) are electrically connected with the two electrodes (3, 5) respectively, and one of the wires is grounded; and the safety circuit (8) is electrically connected with the two electrodes (3, 5) through the two wires (6, 7) respectively. The grounding device disclosed by the utility model can realize grounding connection quickly, safely and efficiently.
Description
Technical field
The utility model relates to a kind of earthing device for electric equipment.
Background technology
For the test or operating process of electric equipment, protective earthing is an indispensable step.But in the prior art, tester or related personnel must take a long time and disconnect line operation.Tester is connected equipment under test by instruments such as spanner, screwdrivers with PE earth connection.Complete after all connections, also will check to avoid incorrect link.And if there is no protective earthing monitoring function in test or operation run duration, once this fault occurs, due to without monitoring alarm, will cause Personal Risk.
Therefore, above-mentioned grounding connection is very unreliable, and greatly lowers efficiency.And, because protective earthing in human factor or live testing process is loosening, wait often generation, also will bring serious potential safety hazard.In real process, for fear of this type of risk, occur, will have to increases spot check frequency, thereby causes expending a large amount of manpowers and time.
Utility model content
In order to address the above problem, the utility model proposes a kind of earthing device, this earthing device comprises: insulating base; Two electrodes, these two electrodes are fixed in this insulating base, for the housing conductive contact with treating grounding apparatus; Permanent magnet, this permanent magnet is fixed in this insulating base, utilizes this permanent magnet and treats the attraction between the housing of grounding apparatus, makes two electrode fixing and conductive contacts relative to the housing for the treatment of grounding apparatus; Two wires, these two wires are electrically connected to two electrodes respectively, wherein a wire ground connection; And safety circuit, this safety circuit is electrically connected to by two electrodes of two wires and this.Adopt above-mentioned earthing device can be fast, safety, realize easily the grounding connection of electric equipment.
Preferably, in earthing device of the present utility model, this safety circuit comprises: power supply, and this power supply provides electric power for this safety circuit; Warning device, this warning device is connected with this power supply, and this warning device gives the alarm when ground connection is broken down; Protective device, this protective device is connected with this warning device, for the protection of safety circuit; And earthing strip, be electrically connected to in this power supply and this two electrodes one respectively.Adopt above earthing device, can more safely be grounded connection.
In addition preferably, in earthing device of the present utility model, this power supply is direct current 24V voltage.Direct current 24V voltage belongs to common voltage, adopts this voltage to make installation cost lower.
More preferably, in earthing device of the present utility model, this warning device is relay, the contact closure output alarm control signal of this relay.Adopt relay to make that earthing device cost is low, good reliability.
Again preferably, in earthing device of the present utility model, this protective device adopts diode.Diode can make earthing device cost low.
Again preferably, in earthing device of the present utility model, this diode is the diode of two series connection, thereby realizes protection more reliably.
Further preferably, in earthing device of the present utility model, the contact surface of these two electrodes all in contact plane, and this permanent magnet towards the surface of contact plane lower than this contact plane, thereby realize more firm grounding connection.
In addition preferably, in earthing device of the present utility model, this warning device is acoustic-optic alarm, thereby makes alarm signal more obvious.
Again preferably, at earthing device of the present utility model, this permanent magnet is fixed in this insulating base by the mode being embedded in this electrode, makes earthing device structure more simple firm.
Accompanying drawing explanation
In order to describe in more detail the utility model, below with reference to accompanying drawing and with reference to specific embodiment, be described further, wherein:
Fig. 1 is according to the stereogram of an earthing device part of the present utility model;
Fig. 2 is according to the front view of an earthing device part of the present utility model; With
Fig. 3 is the schematic diagram according to earthing device of the present utility model.
Embodiment
First with reference to Fig. 1,2 and 3, wherein shown a kind of earthing device 1, this earthing device 1 comprises: insulating base 4, and it adopts insulating material to make; Two electrodes 3,5, described two electrodes 3,5 are fixed in described insulating base 4, for the housing conductive contact (Fig. 1 insulating base 4 has a jut 15 two electrodes, 3,5 electricity are separated) with treating grounding apparatus; Permanent magnet 2, described permanent magnet 2 is fixing with respect to described insulating base 4, utilizes described permanent magnet 2 and the attraction for the treatment of between the housing of grounding apparatus, makes two electrode 3,5 fix also conductive contacts relative to the housing for the treatment of grounding apparatus; Two wires 6,7, described two wires 6,7 are electrically connected to two electrodes 3,5 respectively, wherein a wire ground connection; With safety circuit 8, described safety circuit 8 is electrically connected to by two wires 6,7 and described two electrodes 3,5, and this safety circuit 8 can realize the safety that guarantees whole earthing device, and reports to the police the in the situation that of earth fault.In addition, two electrodes 3,5 are fixing with respect to insulating base 4 by the mode of screw, can certainly take other conventional fixed form of this area.
In the embodiment shown in fig. 3, described permanent magnet 2 is fixed in described insulating base 4 by the mode being embedded in described electrode 3, and its fixing can adopting is screwed, and can certainly take the conventional fixed form in other this area.
Further, as shown in Figure 3, described safety circuit 8 comprises: power supply 9, and described power supply 9 provides electric power for described safety circuit 8; Warning device 10, described warning device 10 is connected with described power supply 9, and described warning device 10 gives the alarm when ground connection is broken down; Protective device 13, described protective device 13 is connected with described warning device 10, for the protection of safety circuit 8; With earthing strip 14, respectively with described power supply 9 and described two electrodes 3,5 in an electrical connection.
Power supply 9 shown in Fig. 3 is direct current 24V voltage.Adopt the object of above-mentioned power supply to be to make earthing device of the present utility model to there is better versatility, because extensively adopt above-mentioned direct current 24V voltage at industrial circle.
In addition, in the earthing device 1 shown in Fig. 3, described warning device 10 is relays 10, the closed output alarm control signal of contact 21,24 of this relay 10.In the present embodiment, relay 10 starts output switch amount signal to controlling test macro, if the non-ground connection well of tested equipment, this test macro can not start, thereby realizes the object of safeguard protection.
More specifically, in the embodiment of earthing device shown in Fig. 31, described protective device 13 adopts diode 11,12.In the present embodiment, these two diodes, 11,12 series connection, to prevent that tested equipment from power device short circuit or explosion time surprisingly occurring, can stop instant high-voltage to damage protective circuit.
As shown in Figure 1, in other preferred embodiment, described two electrodes 3,5 contact surface is all in contact plane 14, and described permanent magnet 2 towards the surface of contact plane 14 lower than described contact plane 14, thereby two electrodes can be abutted on the metal shell of tested equipment more firmly.
Optionally, warning device 10 can be acoustic-optic alarm.
The above, be only preferred embodiment of the present utility model, not the utility model 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 disclosure 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, equivalent variations and the modification above embodiment done according to technical spirit of the present utility model, all still belong in the scope of technical solutions of the utility model.
Claims (9)
1. an earthing device (1), is characterized in that, this earthing device (1) comprising:
Insulating base (4);
Two electrodes (3,5), described two electrodes (3,5) are fixed in described insulating base (4), for the housing conductive contact with treating grounding apparatus;
Permanent magnet (2), the relatively described insulating base of described permanent magnet (2) (4) is fixing, utilizes described permanent magnet (2) and the attraction for the treatment of between the housing of grounding apparatus, makes two electrodes (3,5) fix also conductive contact relative to the housing for the treatment of grounding apparatus;
Two wires (6,7), described two wires (6,7) are electrically connected to two electrodes (3,5) respectively, wherein a wire ground connection; With
Safety circuit (8), described safety circuit (8) is electrically connected to by two wires (6,7) and described two electrodes (3,5).
2. earthing device as claimed in claim 1 (1), is characterized in that, described safety circuit (8) comprising:
Power supply (9), described power supply (9) provides electric power for described safety circuit (8);
Warning device (10), described warning device (10) is connected with described power supply (9), and described warning device (10) gives the alarm when ground connection is broken down;
Protective device (13), described protective device (13) is connected with described warning device (10), for the protection of safety circuit (8); With
Earthing strip (14), respectively with described power supply (9) and described two electrodes (3,5) in an electrical connection.
3. earthing device as claimed in claim 2 (1), is characterized in that, described power supply (9) is direct current 24V voltage.
4. earthing device (1) as claimed in claim 2 or claim 3, is characterized in that, described warning device (10) is relay (10), the closed output alarm control signal of the contact of this relay (10) (21,24).
5. earthing device as claimed in claim 2 (1), is characterized in that, described protective device (13) adopts diode (11,12).
6. earthing device as claimed in claim 5 (1), is characterized in that, described diode is the diode (11,12) of two series connection.
7. earthing device as claimed in claim 1 (1), it is characterized in that, the contact surface of described two electrodes (3,5) all in contact plane (14), and described permanent magnet (2) towards the surface of contact plane (14) lower than described contact plane (14).
8. earthing device as claimed in claim 2 (1), is characterized in that, described warning device (10) is acoustic-optic alarm.
9. earthing device as claimed in claim 1 (1), is characterized in that, described permanent magnet (2) is fixed in described insulating base (4) by the mode being embedded in described electrode (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420111346.4U CN203800190U (en) | 2014-03-12 | 2014-03-12 | Grounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420111346.4U CN203800190U (en) | 2014-03-12 | 2014-03-12 | Grounding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203800190U true CN203800190U (en) | 2014-08-27 |
Family
ID=51382382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420111346.4U Expired - Lifetime CN203800190U (en) | 2014-03-12 | 2014-03-12 | Grounding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203800190U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109510004A (en) * | 2019-01-11 | 2019-03-22 | 国网冀北电力有限公司唐山供电公司 | A kind of 110kV or more temporarily line engaging means and method |
-
2014
- 2014-03-12 CN CN201420111346.4U patent/CN203800190U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109510004A (en) * | 2019-01-11 | 2019-03-22 | 国网冀北电力有限公司唐山供电公司 | A kind of 110kV or more temporarily line engaging means and method |
| CN109510004B (en) * | 2019-01-11 | 2023-09-01 | 国网冀北电力有限公司唐山供电公司 | A device and method for connecting temporary ground wires above 110kV |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140827 |