CN114069332A - Independent grounding system suitable for electrophysiological equipment - Google Patents
Independent grounding system suitable for electrophysiological equipment Download PDFInfo
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- CN114069332A CN114069332A CN202111348214.4A CN202111348214A CN114069332A CN 114069332 A CN114069332 A CN 114069332A CN 202111348214 A CN202111348214 A CN 202111348214A CN 114069332 A CN114069332 A CN 114069332A
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- grounding
- rod assembly
- ground
- soil layer
- grounding system
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/652—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding with earth pin, blade or socket
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
Abstract
The application provides an independent grounding system suitable for an electrophysiological device, and relates to the technical field of bioelectricity. The grounding system comprises: a ground rod assembly buried in the soil layer and disposed outdoors; the conducting piece is buried in the soil layer, at least one part of the conducting piece is configured to be connected with the grounding rod assembly, and the conducting piece is provided with an interface; and the monitoring equipment is arranged indoors and is connected with the interface. The grounding rod assembly and the conducting piece are buried in an outdoor soil layer, the anti-interference capacity is high, the grounding resistance of the grounding rod assembly and the conducting piece is monitored in real time through monitoring equipment, and the working state of a grounding system is monitored in real time.
Description
Technical Field
The application relates to the technical field of bioelectricity, in particular to an independent grounding system suitable for an electrophysiological device.
Background
All vital activities are almost accompanied by bioelectricity changes, including local potentials among cell synapses, action potentials of neurons, field potentials of brain regions and the like, the bioelectricity is very weak and is usually only millivolt, so that the bioelectricity needs to be amplified by a very precise electronic device when the bioelectricity is researched, the bioelectricity is usually monitored by an electrophysiological device, and the electrophysiological device needs to be placed in a special laboratory (an electrophysiological laboratory). Because the environment is full of various stray electromagnetic fields, electromagnetic interference of electric equipment, electromagnetic field interference generated by a 50HZ power grid and the like, the interference is generally called noise; in order to better record the bioelectric signals, and achieve a good signal-to-noise ratio, the intensity of the noise must be controlled; in addition to the need for a good shielding, grounding is also a crucial factor.
Most electrophysiological laboratories today do not have a complete, independent grounding device to control noise intensity.
Disclosure of Invention
An object of the application is to provide an independent grounding system suitable for electrophysiological equipment, aim at solving the great technical problem of noise intensity that exists in current electrophysiological laboratory.
In order to achieve the purpose, the following technical scheme is adopted in the application:
the present application provides an independent grounding system suitable for an electrophysiological device, comprising:
a ground rod assembly buried in a soil layer, the ground rod assembly being disposed outdoors;
the conducting piece is buried in the soil layer, at least one part of the conducting piece is structurally configured to be connected with the grounding rod assembly, and the conducting piece is provided with an interface;
a monitoring device disposed indoors, the monitoring device being connected to the interface.
Among the above-mentioned technical scheme, bury ground rod subassembly and the piece that switches on in outdoor soil layer underground, have stronger interference killing feature to and reduce the effect of indoor noise intensity, and through monitoring facilities real-time supervision ground rod subassembly and the ground resistance who switches on the piece, guarantee ground system's normal work.
Further, the ground rod assembly comprises a plurality of sub ground rods, and the plurality of sub ground rods are arranged at intervals.
Among the above-mentioned technical scheme, through setting the earth bar subassembly to a plurality of sub-earth bars, be favorable to reducing the contact failure probability of earth bar subassembly and soil layer, provide the stability of ground system work greatly.
Further, at least two of the sub ground rods have different lengths, and the minimum depth of the sub ground rods is not less than 5 m.
Among the above-mentioned technical scheme, through setting sub earth rod to length difference, be favorable to burying the earth rod subassembly underground in the soil layer, can contact the different degree of depth of soil layer, improved the conducting capacity of earth component with the soil layer greatly.
Further, the conductive member includes a copper plate.
Among the above-mentioned technical scheme, through setting the piece that switches on to the copper, be favorable to reducing the resistance that switches on the piece itself, the conducting capacity is higher.
Further, the independent grounding system further comprises a hollow member connected with the grounding rod assembly, the hollow member is buried in the soil layer, and the length direction of the hollow member is configured to be the length direction of the grounding rod assembly;
wherein the hollow member is used for injecting an ionic solution so as to improve the ionic concentration of the soil layer.
Among the above-mentioned technical scheme, through connecting hollow member on the earth bar subassembly, can realize when earth bar subassembly and soil layer contact failure, lead to earth resistance when too big, the ionic solution is annotated to the hollow member of accessible, has increased the conducting capacity of earth bar subassembly with the soil layer to earth resistance has been reduced.
Further, the hollow member is welded to one side of the grounding rod assembly close to the conducting member, and the height difference between the welded position and the end part of the grounding rod assembly connected with the conducting member is not more than 5 cm.
Among the above-mentioned technical scheme, set up hollow member in the 5 centimetres department of ground rod subassembly tip, can effectual reduction ground resistance.
Furthermore, an observation well is arranged at the position of the conducting piece corresponding to the grounding rod assembly.
Further, the monitoring device comprises an ohmmeter connected with the interface and an equipotential terminal box connected with the ohmmeter.
Among the above-mentioned technical scheme, can real-time supervision ground system's ground resistance through the ohmmeter to know the performance of ground system constantly, through equipotential terminal box, can prevent the electric leakage.
Further, the monitoring device further comprises a shield connected with the equipotential terminal box.
Among the above-mentioned technical scheme, through setting up the shielding piece, can effectively improve indoor noise.
Compared with the prior art, the beneficial effect of this application scheme is: the materials utilized by the invention comprise copper-clad steel grounding rods, copper plates, copper wires and the like, so that the resistance of a grounding system is greatly reduced; the grounding rod assembly and the conducting piece are embedded in an outdoor soil layer, so that the anti-interference capacity is high; the hollow pipe is additionally arranged beside the grounding rod, and high-concentration ionic solution can be injected through the hollow pipe, so that the conductivity of the grounding rod and the earth is improved; the grounding rod assembly and the grounding resistance of the conducting piece are monitored in real time through the monitoring equipment, and the normal work of a grounding system is guaranteed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for a user of ordinary skill in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of an independent grounding system suitable for an electrophysiological device disclosed in an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a monitoring device suitable for an independent grounding system of an electrophysiological device, disclosed in an embodiment of the present application.
Reference numerals
100. A ground bar assembly; 101. a first ground bar; 102. a second ground rod; 103. a third ground rod; 200. a conducting piece; 300. a hollow member; 301. a first hollow steel pipe; 302. a second hollow steel pipe; 303. a third hollow steel pipe; 305. an interface; 400. an observation well; 500. monitoring equipment; 501. an ohm meter; 502. an equipotential terminal box; 503. a shield.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a user of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it is noted that the terms "first", "second", "third", and the like are used merely for distinguishing between descriptions and are not intended to indicate or imply relative importance.
In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case to a user of ordinary skill in the art.
Examples
Fig. 1 is a schematic structural diagram of an independent grounding system suitable for an electrophysiological device, according to an embodiment of the present disclosure; the present application provides a grounding system comprising: ground rod subassembly 100, lead a 200 and monitoring facilities 500, ground rod subassembly 100, lead a 200 with ground rod group price is connected, just lead a 200 and ground rod subassembly 100 all locates in the soil horizon, monitoring facilities 500 with lead a 200 and be connected, be used for the monitoring ground rod subassembly 100 and the ground resistance that leads a 200.
The inventor discovers that the existing protection grounding, working grounding and lightning protection grounding can not meet the requirements of an electrophysiological laboratory in the design process, and mainly shows that: the existing common grounding resistance is too large (the qualification is required to be less than 4 ohms, and some common grounding resistances are 10 ohms); the existing grounding mode cannot monitor the resistance of grounding; when poor contact with the ground occurs, the resistance increases and cannot be lowered any more.
In view of the above, the present application provides a ground rod assembly 100, which is buried in the ground layer, and the ground rod assembly 100 is disposed outdoors; illustratively, the grounding rod assembly 100 is completely embedded in the earth layer, the embedding depth of the grounding rod assembly 100 may not be specifically limited, and the grounding rod assembly 100 may be set according to the actual application, and preferably made of copper clad steel, so that the grounding rod assembly 100 itself has smaller electrons and higher conductivity compared to a conventional grounding rod.
As shown in fig. 1, the ground rod assembly 100 includes a plurality of sub ground rods, and the sub ground rods are arranged at intervals.
Specifically, the number of the sub-grounding rods is at least two, and the distance between the two sub-grounding rods is set to be 4-6 m, so that good conductivity is guaranteed.
For example, when the ground rod assembly 100 includes the first ground rod 101, the second ground rod 102 and the third ground rod 103, the three of the first ground rod 101, the second ground rod 102 and the third ground rod 103 may be vertically disposed in the soil layer, or may be obliquely disposed in the soil layer, wherein the distance between the three of the first ground rod 101, the second ground rod 102 and the third ground rod 103 is not specifically limited, and all of them belong to the protection scope of the present application.
It should be noted that the sub ground rods of the ground rod assembly 100 described in the present application are not limited to the first ground rod 101, the second ground rod 102 and the third ground rod 103, and the number of the sub ground rods of the ground rod assembly 100 may be more than three.
In the above technical solution, the grounding rod assembly 100 is set to the first grounding rod 101, the second grounding rod 102 and the third grounding rod 103, which is beneficial to reducing the probability of poor contact between the grounding rod assembly 100 and the soil layer, and greatly improves the working stability of the grounding system.
Further, when the sub ground rods are a first ground rod 101, a second ground rod 102 and a third ground rod 103, at least two of the first ground rod 101, the second ground rod 102 and the third ground rod 103 have different lengths, and the minimum depth of the sub ground rods is not less than 5 meters.
Illustratively, the first ground rod 101, the second ground rod 102 and the third ground rod 103 are distributed in a triangular shape, wherein in a preferred embodiment, the length of the first ground rod 101 is set to be 5 meters, the length of the second ground rod 102 is set to be 7.5 meters, and the length of the third ground rod 103 is set to be 10 meters.
Among the above-mentioned technical scheme, through setting first earth rod 101, second earth rod 102 and third earth rod 103 to length difference, be favorable to burying earth rod subassembly 100 in the soil layer time, can contact the different degree of depth of soil layer, improved the conducting capacity of earth subassembly with the soil layer greatly.
The conducting piece 200 of the present application is buried in the soil layer, and at least a part of the conducting piece 200 is configured to be connected to the ground rod assembly 100, and the conducting piece 200 has an interface 305; for example, the conducting member 200 is used to realize conduction among the first ground rod 101, the second ground rod 102 and the third ground rod 103, and the shape of the conducting member 200 may be set according to the distribution shape of the first ground rod 101, the second ground rod 102 and the third ground rod 103; it should be noted that, the conducting member 200 includes a copper plate, and by setting the conducting member 200 as the copper plate, it is beneficial to reduce the resistance of the conducting member 200 itself, and the conducting capability is higher.
Among the above-mentioned technical scheme, bury ground rod subassembly 100 and switch on piece 200 in outdoor soil layer, have stronger interference killing feature to and reduce indoor noise intensity, and through monitoring facilities 500 real-time supervision ground rod subassembly 100 and the ground resistance who switches on piece 200, guarantee ground system's normal work.
Referring to fig. 1, an observation well 400 is disposed at a position of the conducting member 200 corresponding to the ground rod assembly 100.
For example, the number of the observation wells 400 may be set according to the number of the sub ground rods of the ground rod assembly 100, taking the number of the sub ground rods as three as an example, three observation wells 400 are provided, and the observation wells 400 correspond to the sub ground rods one to one.
It should be noted that the observation well 400 is a prefabricated object made of plastic or concrete and used for testing a core of a grounding system, and the observation well 400 can be widely applied to auxiliary engineering of grounding facilities in various fields such as work grounding, protection grounding, anti-interference grounding, lightning grounding, static electricity prevention and the like, provides a great convenient condition for monitoring grounding efficiency and testing grounding effect in real time, and is mainly used for periodically measuring the grounding resistance of the grounding system.
Fig. 2 is a schematic structural diagram of a monitoring device 500 suitable for an independent grounding system of an electrophysiological device, according to an embodiment of the present disclosure; the monitoring device 500 of the present application is configured indoors, the monitoring device 500 is connected to the interface 305, and the monitoring device 500 is used for monitoring the grounding resistance of the grounding rod assembly 100 and the conducting member 200.
In the present application, the monitoring device 500 includes an ohmmeter 501 connected to the interface 305 via a copper wire and an equipotential terminal box 502 connected to the ohmmeter 501 via a copper wire.
In the above technical scheme, the earth resistance of the earth system can be monitored in real time through the ohmmeter 501, the performance of the earth system can be known at any time, and the electric leakage can be prevented through the equipotential terminal box 502.
Further, the monitoring device 500 further includes a shield 503 connected to the equipotential terminal box 502 by a copper wire. Illustratively, the shielding member 503 includes, but is not limited to, a shielding case, which is mainly used for shielding electromagnetic interference and the like around the room.
In the above technical solution, by providing the shielding member 503, the noise in the room can be effectively improved.
As shown in fig. 1, the independent ground system further includes a hollow member 300 connected to the ground rod assembly 100, the hollow member 300 is buried in the ground, and the length direction of the hollow member 300 is configured as the length direction of the ground rod assembly 100;
wherein the hollow member 300 is used to fill with an ionic solution, including but not limited to a saline solution, to increase the ionic concentration of the earth formation.
Illustratively, the hollow member 300 includes, but is not limited to, a hollow steel pipe, and in order to reduce ground resistance, the hollow member 300 has a sub hollow member 300, the sub hollow member 300 includes a first hollow steel pipe 301, a second hollow steel pipe 302, and a third hollow steel pipe 303, and the sub hollow members 300 correspond to the sub ground rods of the ground rod assembly 100 one to one.
The length of the first hollow steel pipe 301 corresponding to the first ground rod 101 is set to 4.5 m, the length of the second hollow steel pipe 302 corresponding to the second ground rod 102 is set to 7 m, and the length of the third hollow light pipe corresponding to the third ground rod 103 is set to 9.5 m.
Among the above-mentioned technical scheme, through connect hollow member 300 on ground rod subassembly 100, can realize when ground rod subassembly 100 and soil layer contact failure, lead to ground resistance when too big, the ionic solution is filled to accessible hollow member 300, has increased the conducting capacity of ground rod subassembly 100 and soil layer to ground resistance has been reduced.
As shown in fig. 1, the hollow member 300 is welded to the side of the ground rod assembly 100 close to the conducting member 200, and the welded position has a height difference of no more than 5 cm from the end of the ground rod assembly 100 connected with the conducting member 200. For example, the conducting member 200 is disposed on the upper side of the contact rod assembly, the hollow member 300 is welded on the upper side of the ground rod assembly 100, and the difference between the upper end of the hollow member 300 and the upper end of the ground rod assembly 100 is 5 cm, which can effectively reduce the ground resistance.
It should be noted that, this application is applicable to among the independent ground system of electrophysiological equipment, electrophysiological equipment locates the electrophysiological laboratory, ground system's ground rod subassembly 100 and lead through 200 locate outside the electrophysiological laboratory, monitoring facilities 500 locate in the electrophysiological laboratory.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (9)
1. An independent grounding system for an electrophysiology apparatus, comprising:
a ground rod assembly buried in a soil layer, the ground rod assembly being disposed outdoors;
the conducting piece is buried in the soil layer, at least one part of the conducting piece is structurally configured to be connected with the grounding rod assembly, and the conducting piece is provided with an interface;
a monitoring device disposed indoors, the monitoring device being connected to the interface.
2. The self-contained grounding system for an EP device as claimed in claim 1, wherein the grounding rod assembly comprises a plurality of sub-grounding rods, the plurality of sub-grounding rods being spaced apart.
3. The self-contained grounding system for electrophysiological equipment of claim 2, wherein the sub-ground rods of the plurality of sub-ground rods have different lengths and a minimum depth of not less than 5 m.
4. The self-contained grounding system for an EP device according to claim 1, wherein said conductive member comprises a copper plate.
5. The independent grounding system for an electro-physiological apparatus according to claim 1, further comprising a hollow member connected to the grounding rod assembly, wherein the hollow member is buried in a soil layer, and a length direction of the hollow member is configured as a length direction of the grounding rod assembly;
wherein the hollow member is used for injecting an ionic solution so as to improve the ionic concentration of the soil layer.
6. The self-contained grounding system for an EP device as claimed in claim 5, wherein the hollow member is welded to the side of the grounding rod assembly adjacent to the conducting member, and the welded portion has a height difference of not more than 5 cm from the end of the grounding rod assembly connected to the conducting member.
7. The self-contained grounding system for an EP device as claimed in claim 1, wherein the conducting member is provided with a viewing well at a position corresponding to the grounding rod assembly.
8. The self-contained grounding system for an EP device as claimed in claim 1, wherein the monitoring device comprises an ohmmeter connected to the interface and an equipotential terminal box connected to the ohmmeter.
9. The self-contained grounding system for an EP device of claim 8, wherein the monitoring device further comprises a shield connected to the equipotential terminal box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111348214.4A CN114069332A (en) | 2021-11-15 | 2021-11-15 | Independent grounding system suitable for electrophysiological equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111348214.4A CN114069332A (en) | 2021-11-15 | 2021-11-15 | Independent grounding system suitable for electrophysiological equipment |
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| Publication Number | Publication Date |
|---|---|
| CN114069332A true CN114069332A (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111348214.4A Pending CN114069332A (en) | 2021-11-15 | 2021-11-15 | Independent grounding system suitable for electrophysiological equipment |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101106220A (en) * | 2006-07-13 | 2008-01-16 | 郑龙基 | Equipotential earthing system and method for constructing the same |
| CN106154335A (en) * | 2016-08-30 | 2016-11-23 | 浙江广川工程咨询有限公司 | For improving device and the Electrical imaging oriented detection method of hidden danger body of hardening dykes and dams contact |
| CN208251162U (en) * | 2018-05-23 | 2018-12-18 | 江苏银锐通电工设备有限公司 | It is grounded inspection well |
| CN211603346U (en) * | 2019-12-23 | 2020-09-29 | 江苏鹏创电力设计有限公司 | On-line monitoring system for grounding resistance of transformer substation grounding transformer system |
-
2021
- 2021-11-15 CN CN202111348214.4A patent/CN114069332A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101106220A (en) * | 2006-07-13 | 2008-01-16 | 郑龙基 | Equipotential earthing system and method for constructing the same |
| CN106154335A (en) * | 2016-08-30 | 2016-11-23 | 浙江广川工程咨询有限公司 | For improving device and the Electrical imaging oriented detection method of hidden danger body of hardening dykes and dams contact |
| CN208251162U (en) * | 2018-05-23 | 2018-12-18 | 江苏银锐通电工设备有限公司 | It is grounded inspection well |
| CN211603346U (en) * | 2019-12-23 | 2020-09-29 | 江苏鹏创电力设计有限公司 | On-line monitoring system for grounding resistance of transformer substation grounding transformer system |
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Application publication date: 20220218 |