CN214280937U - Hierarchical earial drainage module - Google Patents
Hierarchical earial drainage module Download PDFInfo
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- CN214280937U CN214280937U CN202022727606.9U CN202022727606U CN214280937U CN 214280937 U CN214280937 U CN 214280937U CN 202022727606 U CN202022727606 U CN 202022727606U CN 214280937 U CN214280937 U CN 214280937U
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Abstract
The utility model provides a hierarchical earial drainage module, including one-level ground copper bar and second grade ground copper bar, it has one-level high frequency separation ware to establish ties between one-level ground copper bar and the second grade ground copper bar, the one-level high frequency separation ware is gone up the parallel connection and has one-level protection clearance. The grading discharge module can discharge in grades on the equipotential basis, and can reduce the residual voltage of each grounding copper bar step by step, so that the working grounding of the electrical equipment is at the lowest potential level.
Description
Technical Field
The utility model relates to a lightning protection technical field, concretely relates to hierarchical earial drainage module.
Background
Notice for CN210273496U, and the china utility model patent that the publication date is 20200407 discloses lightning protection box, and this lightning protection box includes: a housing, a fuse; the surge protector is in a high-resistance state when a circuit connected with the lightning protection box is in a normal state, and is instantly changed into a low-resistance state when a surge exists in the circuit connected with the lightning protection box, so that lightning current is released; and the three-phase decoupler is used for preventing lightning current from flowing to rear protection equipment when the lightning protection box is connected with a circuit with a surge.
However, the lightning protection box is single-stage current leakage, and the grounding points of all functions of the electrical equipment can be instantly changed into high potential in the case of lightning stroke. When the grounding resistance is large, residual voltage exists in work grounding, and the residual voltage cannot be released in time. Thus, the requirement of special land can not be met. In order to meet the requirements of special occasions, the drainage module capable of carrying out graded drainage on the equipotential basis and reducing the residual voltage of each grounding copper bar step by step so as to enable the working grounding of the electrical equipment to be at the lowest potential level is required to be realized.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem the utility model provides a hierarchical earial drainage module can realize hierarchical earial drainage on the equipotential basis, reduces each ground connection copper bar's residual pressure step by step, makes electrical equipment work ground connection be in minimum potential level.
Therefore, the technical scheme of the utility model is as follows:
the utility model relates to a hierarchical earial drainage module, including one-level ground copper bar and second grade ground copper bar, it has one-level high frequency separation ware to establish ties between one-level ground copper bar and the second grade ground copper bar, the parallel connection has one-level protection clearance on the one-level high frequency separation ware. The first-stage high-frequency blocker has a characteristic of blocking a current from changing when the current abruptly changes, and can block a high-frequency current.
When lightning strikes, the primary high-frequency blocker delays the rapid change of current, so that the voltages at two ends of the primary high-frequency blocker are different, the voltage of the primary ground copper bar is higher than that of the secondary ground copper bar, and the current is discharged to the ground through the primary ground copper bar at the moment. Because the primary protection gap is connected with the primary high-frequency isolator in parallel, when lightning current is large enough to cause voltage larger than breakdown voltage of the primary protection gap, the primary protection gap breaks down, and at the moment, the secondary grounding copper bar is conducted with the primary grounding copper bar and is discharged to the ground through the primary grounding copper bar and the secondary grounding copper bar respectively. By adopting the structure, when lightning current is small or grounding resistance is small, the current is discharged to the ground through the first-level grounding copper bar; when lightning current is large or grounding resistance is large, the primary grounding copper bars and the secondary grounding copper bars respectively discharge current to the ground. Greatly reduced the residual voltage of one-level ground connection copper bar, guaranteed that the ground connection of working equipment is in minimum potential level, improved the security of working equipment. When no lightning stroke exists, the primary high-frequency barrier is in a low-resistance state and is communicated with the primary grounding copper bar and the secondary grounding copper bar, so that the equipotential of each grounding point is guaranteed. According to the above principle, the utility model discloses can include a plurality of earial drainage parts, form multistage earial drainage, can realize reducing the effect of residual pressure better.
Furthermore, the first-stage grounding copper bar is electrically connected with the first grounding electrode, and the second-stage grounding copper bar is electrically connected with the second grounding electrode.
Furthermore, the primary ground copper bar, the secondary ground copper bar, the primary protection gap and the primary high-frequency barrier are respectively and integrally installed on the electric control panel.
Further, the primary high-frequency barrier is arranged in the middle of the electric control disc; the primary protection gap is arranged below the primary high-frequency barrier; the first-stage grounding copper bar and the second-stage grounding copper bar are respectively arranged at two ends of the first-stage protection gap. Because the one-level protection clearance is parallelly connected with one-level high frequency separation ware, adopts such upper and lower distribution structure, makes things convenient for on-the-spot wiring workman to operate, reduces the probability that the circuit connects the mistake, and the nearby distribution of one-level ground copper bar and second grade ground copper bar for circuit length shortens, and save material has improved wiring efficiency.
Further, the wire connecting device also comprises a first wire connecting terminal, a second wire connecting terminal and a third wire connecting terminal; one end of the first connecting terminal is connected with the primary grounding copper bar through a grounding wire, and the other end of the first connecting terminal is connected with the lightning rod through a down lead; one end of the second connecting terminal is connected with the first-stage grounding copper bar through a grounding wire, and the other end of the second connecting terminal is connected with the first grounding electrode through a grounding wire; and one end of the third wiring terminal is connected with the second-stage grounding copper bar through a grounding wire, and the other end of the third wiring terminal is connected with the second grounding electrode through a grounding wire.
By adopting the structure, the first grounding electrode and the second grounding electrode are prevented from being directly connected with the first-stage grounding copper bar and the second-stage grounding copper bar respectively, so that the problems of overlong circuit, inconvenience in installation and disassembly and the like are solved. Meanwhile, the structure is convenient for the outward connection of the circuit from the equipment, so that the layout of the whole electric control disc is simple and attractive, and unnecessary errors caused by circuit mixing are avoided.
Furthermore, intervals exist among the first connecting terminal, the second connecting terminal and the third connecting terminal respectively; the spacing is 20-50 mm, with 40 mm being preferred. By adopting the structure, the situation that the first wiring terminal, the second wiring terminal and the third wiring terminal are mutually influenced and mutually interfered due to the rapid change of large current in the lightning stroke is avoided. An excessively large interval occupies space and causes a waste of space, so that 40 mm is preferable.
Preferably, the first connecting terminal, the second connecting terminal and the third connecting terminal are UK connecting terminals. The UK wiring terminal is adopted, so that the cable can be conveniently connected and detached, and when a line fails, the fault detection can be easily carried out through the point positions on the UK wiring terminal, and the working efficiency is improved.
The utility model discloses following beneficial effect has:
1. when the lightning current is small or the grounding resistance is small, the current is discharged through the first grounding electrode; when the lightning current is larger or the grounding resistance is larger, the first grounding electrode and the second grounding electrode are simultaneously drained. Greatly reduced the residual voltage of one-level ground connection copper bar, guaranteed that the ground connection of working equipment is in minimum potential level, improved the security of working equipment. When no lightning stroke exists, the primary high-frequency barrier is in a low-resistance state and is communicated with the primary grounding copper bar and the secondary grounding copper bar, so that the equipotential of each grounding point is guaranteed.
2. The operation of field wiring workers is facilitated, the probability of wrong wiring is reduced, and the first-level grounding copper bars and the second-level grounding copper bars are distributed nearby, so that the length of the wiring is shortened, materials are saved, and the wiring efficiency is improved.
3. Adopt first binding post, second binding post and third binding post, avoid first earthing pole and second earthing pole respectively with one-level ground copper bar and second grade ground copper bar lug connection to the circuit overlength that leads to, the inconvenient scheduling problem of installation dismantlement. Meanwhile, the structure is convenient for the outward connection of the circuit from the equipment, so that the layout of the whole electric control disc is simple and attractive, and unnecessary errors caused by circuit mixing are avoided.
4. The UK wiring terminal is adopted, so that the cable can be conveniently connected and detached, and when a line fails, the fault detection can be easily carried out through the point positions on the UK wiring terminal, and the working efficiency is improved.
Drawings
Fig. 1 is an installation layout diagram of a grading drainage module in embodiment 1 of the present invention;
fig. 2 is a topological diagram of an electrical principle of the grading drainage module in embodiment 1 of the present invention;
fig. 3 is an installation layout diagram of the graded drainage module in embodiment 2 of the present invention;
fig. 4 is a topological diagram of an electrical principle of the classification bleeder module in embodiment 2 of the present invention.
Description of reference numerals:
1-an electric control disc; 2-first-level grounding copper bar; 3-a secondary ground copper bar; 4-first-stage high-frequency barrier; 5-first order protection gap; 6-lightning rod; 7-a first connection terminal; 8-a second connection terminal; 9-a third connecting terminal; 10-a first ground electrode; 11-a second ground electrode; 12-three-stage grounding copper bars; 13-a secondary high frequency barrier; 14-secondary protection gap; 15-a third ground electrode; 16-fourth connection terminal.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, 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.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Example 1
FIG. 1 is a view showing an installation layout of a staged bleeder module according to this embodiment; fig. 2 is a topological diagram of the electrical principle of the grading drainage module in this embodiment. As shown in fig. 1, a hierarchical earial drainage module, its characterized in that, including one-level ground copper bar 2 and second grade ground copper bar 3, it has one-level high frequency separation ware 4 to establish ties between one-level ground copper bar 2 and the second grade ground copper bar 3, it has one-level protection clearance to connect in parallel on one-level high frequency separation ware 4.
During lightning stroke, the first-stage high-frequency blocker 4 delays the rapid change of current, so that the voltages at two ends of the first-stage high-frequency blocker are different, the voltage of the first-stage ground copper bar 2 is higher than that of the second-stage ground copper bar 3, and the current is discharged to the ground through the first-stage ground copper bar 2. Because the primary protection gap 5 is connected with the primary high-frequency blocking device 4 in parallel, when the lightning current is large enough to cause the voltage to be larger than the breakdown voltage of the primary protection gap 5, the primary protection gap 5 breaks down, the secondary grounding copper bar 3 is conducted with the primary grounding copper bar 2 at the moment, and the primary grounding copper bar 2 and the secondary grounding copper bar 3 are respectively discharged to the ground. When the lightning current is small or the grounding resistance is small, the current is discharged through the primary grounding copper bar 2; when lightning current is large or grounding resistance is large, the primary grounding copper bars 2 and the secondary grounding copper bars 2 respectively discharge current to the ground. Greatly reduced the residual voltage of one-level ground connection copper bar 2, guaranteed that the ground connection of working equipment is in minimum potential level, improved the security of working equipment. And when no lightning stroke exists, the primary high-frequency blocking device 4 is in a low-resistance state and is communicated with the primary grounding copper bar 2 and the secondary grounding copper bar 3, so that the equipotential of each grounding point is ensured.
Furthermore, the first-stage grounding copper bar 2 is electrically connected with the first grounding electrode 10, and the second-stage grounding copper bar 3 is electrically connected with the second grounding electrode 11. The primary ground copper bar 2, the secondary ground copper bar 3, the primary protective gap 5 and the primary high-frequency separator 4 are respectively and integrally installed on the electric control panel 1.
Install one-level ground copper bar 2, second grade ground copper bar 3, one-level protection clearance 5 and one-level high frequency separation ware 4 respectively the integration on automatically controlled dish 1, be convenient for install and manage each components and parts, thereby one-level ground copper bar 2 and second grade ground copper bar 3 carry out the earth respectively through one-level earthing pole 10 and the 11 earthings of second grade earthing pole and let out the flow to ground respectively.
Specifically, the primary high-frequency barrier 4 is installed in the middle of the electric control panel 1; the primary protection gap 5 is arranged below the primary high-frequency barrier 4; the primary ground copper bar 2 and the secondary ground copper bar 3 are respectively arranged at two ends of the primary protection gap 5. A first wiring terminal 7, a second wiring terminal 8 and a third wiring terminal 9 are further mounted on the electric control panel 1; the upper end of the first wiring terminal 7 is connected with the primary grounding copper bar 2 through a grounding wire; the lower end of the first connecting terminal 7 is connected with the lightning rod 6 through a down lead; the upper end of the second connecting terminal 8 is connected with the primary grounding copper bar 2 through a grounding wire; the lower end of the second connecting terminal 8 is connected with a first grounding electrode 10 through a grounding wire; the upper end of the third connecting terminal 9 is connected with the second-stage grounding copper bar 3 through a grounding wire; the lower end of the third wiring terminal 9 is connected with the second grounding electrode 11 through a grounding wire. The first connecting terminal 7 is positioned below the first-stage grounding copper bar 2; the second connecting terminal 8 is positioned below the first-stage grounding copper bar 2; and the third wiring terminal 9 is positioned below the second-stage grounding copper bar 3.
Such structure avoids first earthing pole 10 and second earthing pole 11 respectively with one-level ground copper bar 2 and second grade ground copper bar 3 lug connection to the circuit overlength that leads to, the inconvenient scheduling problem of installation dismantlement. Meanwhile, the structure facilitates the outward connection of the lines from the equipment, so that the whole electric control disc 1 is simple and attractive in layout, and unnecessary errors caused by the mixed lines are avoided.
Intervals are respectively arranged among the first connecting terminal 7, the second connecting terminal 8 and the third connecting terminal 9; the spacing is 20-50 mm, with 40 mm being preferred. By adopting the structure, the situation that the first wiring terminal 7, the second wiring terminal 8 and the third wiring terminal 9 are mutually influenced and mutually interfered due to the rapid change of large current in the lightning stroke is avoided. An excessively large interval occupies space and causes a waste of space, so that 40 mm is preferable. The first connecting terminal 7, the second connecting terminal 8 and the third connecting terminal 9 are UK connecting terminals. The UK wiring terminal is adopted, so that the cable can be conveniently connected and detached, and when a line fails, the fault detection can be easily carried out through the point positions on the UK wiring terminal, and the working efficiency is improved.
Example 2
Fig. 3 is a diagram showing an installation layout of the staged bleeder module in this embodiment, and fig. 4 is a topological diagram of an electrical principle of the staged bleeder module in this embodiment. The difference between the embodiment and the embodiment 1 is that a third-level ground copper bar 12 is connected behind the second-level ground copper bar 3; a secondary high-frequency separator 13 is connected in series between the secondary ground copper bar 3 and the tertiary ground copper bar 12; the secondary high frequency barrier 13 is connected in parallel with the secondary protective gap 14. The third-stage grounding copper bar 12 is electrically connected with a third grounding electrode 15. The secondary high-frequency blocking device 13 and the secondary protection gap 14 are arranged on the right side of the secondary grounding copper bar 3, and the tertiary grounding copper bar 12 is arranged on the right side of the secondary high-frequency blocking device 13. The fourth connection terminal 16 is installed below the third-stage ground copper bar 12.
The present embodiment 2 is the same as the operation principle of the embodiment 1, except that the first ground electrode 10, the second ground electrode 11 and the third ground electrode 15 are simultaneously discharged when the lightning current is large or the ground resistance is large. Thereby achieving the effect of multi-stage drainage.
The difference between the embodiment 2 and the embodiment 1 is that the embodiment 2 has stronger grading drainage capability than the embodiment 1, and can reduce the residual voltage on the first-stage ground copper bar 2, the second-stage ground copper bar 3 and the third-stage ground copper bar 12 to a greater extent.
According to the principles in the embodiment 1 and the embodiment 2, more stages of drainage parts can be added, so that more stages of drainage are realized, and the residual pressure is better reduced; are not described in detail herein.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (4)
1. The grading drainage module is characterized by comprising a primary ground copper bar (2) and a secondary ground copper bar (3), wherein a primary high-frequency blocker (4) is connected in series between the primary ground copper bar (2) and the secondary ground copper bar (3), and a primary protection gap is connected in parallel on the primary high-frequency blocker (4);
the primary grounding copper bar (2) is electrically connected with the first grounding electrode (10), and the secondary grounding copper bar (3) is electrically connected with the second grounding electrode (11);
the primary grounding copper bar (2), the secondary grounding copper bar (3), the primary protection gap (5) and the primary high-frequency separator (4) are respectively and integrally installed on the electric control disc (1);
the primary high-frequency barrier (4) is arranged in the middle of the electric control disc (1); the primary protection gap (5) is arranged below the primary high-frequency barrier (4); the primary ground copper bar (2) and the secondary ground copper bar (3) are respectively arranged at two ends of the primary protection gap (5);
the wire connecting device also comprises a first wire connecting terminal (7), a second wire connecting terminal (8) and a third wire connecting terminal (9); one end of the first connecting terminal (7) is connected with the primary grounding copper bar (2) through a grounding wire, and the other end of the first connecting terminal is connected with the lightning rod (6) through a down conductor; one end of the second connecting terminal (8) is connected with the first-stage grounding copper bar (2) through a grounding wire, and the other end of the second connecting terminal is connected with the first grounding electrode (10) through a grounding wire; and one end of the third wiring terminal (9) is connected with the second-stage grounding copper bar (3) through a grounding wire, and the other end of the third wiring terminal is connected with the second grounding electrode (11) through a grounding wire.
2. A stepped bleed module according to claim 1, characterised in that there is a space between the first connection terminal (7), the second connection terminal (8) and the third connection terminal (9), respectively.
3. A staged leak module according to claim 2, wherein said spacing is 20-50 mm.
4. A graded drain module according to any of claims 1-3, characterized in that the first connection terminal (7), the second connection terminal (8) and the third connection terminal (9) are UK connection terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022727606.9U CN214280937U (en) | 2020-11-23 | 2020-11-23 | Hierarchical earial drainage module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022727606.9U CN214280937U (en) | 2020-11-23 | 2020-11-23 | Hierarchical earial drainage module |
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| Publication Number | Publication Date |
|---|---|
| CN214280937U true CN214280937U (en) | 2021-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022727606.9U Active CN214280937U (en) | 2020-11-23 | 2020-11-23 | Hierarchical earial drainage module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214280937U (en) |
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- 2020-11-23 CN CN202022727606.9U patent/CN214280937U/en active Active
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