CN207038963U - A kind of lightning protection power distribution cabinet - Google Patents
A kind of lightning protection power distribution cabinet Download PDFInfo
- Publication number
- CN207038963U CN207038963U CN201720738442.5U CN201720738442U CN207038963U CN 207038963 U CN207038963 U CN 207038963U CN 201720738442 U CN201720738442 U CN 201720738442U CN 207038963 U CN207038963 U CN 207038963U
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- Prior art keywords
- cabinet
- arrester
- outside
- internal
- power distribution
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Abstract
The utility model discloses a kind of lightning protection power distribution cabinet, it is characterised in that；Including internal cabinet (1) and outside cabinet (2), internal cabinet (1) is arranged in outside cabinet (2) and is provided with gap (3) between the outer wall of internal cabinet (1) and the inwall of outside cabinet (2)；Be socketed with metal grading ring (4) outside the internal cabinet (1), metal grading ring (4) electrically connected with outside cabinet (2) and not with internal cabinet (1) wall contacts；The metal grading ring (4) is connected with earth brace (41), the lower end ground connection of earth brace (41)；Line-to-ground copper bar (7) is provided with the internal cabinet (1), Surge Protector (8) is connected between line-to-ground copper bar (7) and earth brace (41).The drawbacks of overcoming prior art the utility model has the advantage of it, novelty reasonable in design.
Description
Technical field
A kind of lightning protection power distribution cabinet is the utility model is related to, belongs to wind power generation field.
Background technology
Power distribution cabinet (case) sub-power power distribution cabinet (case) and light distribution cabinet (case), metering cabinet (case), it is the end of distribution system
Level equipment.Power distribution cabinet is the general designation of motor control center.Power distribution cabinet is used in the occasion that load is more dispersed, loop is less；
Motor control center is used for the occasion that load is concentrated, loop is more.Their electric energy a certain circuit of upper level controller switching equipment
Distribute to load nearby.
Wind energy is increasingly paid attention to by countries in the world as a kind of regenerative resource of cleaning, and the amount of accumulateing and its huge,
Wind-power electricity generation is as one of current novel energy industry, because its environmental protection and energy saving development scale is advanced by leaps and bounds, China whole nation model at present
It is ten hundreds of with wind power generating set in enclosing, and still there is the fast-developing impetus.In the prior art, small-sized wind power generation
Machine is widely used in the power supply of the communal facilitys such as street lamp, monitoring, stop-light, and the distribution of small-sized wind generator set by
In being positioned over open air, the risk being struck by lightning is larger, and common power distribution cabinet is difficult to reach anti-lightning strike effect.
Utility model content
Goal of the invention of the present utility model is：For " small-sized wind generator is widely used in existing for prior art
The power supply of the communal facilitys such as street lamp, monitoring, stop-light, and the distribution of small-sized wind generator is set due to being positioned over family
Outside, the risk being struck by lightning is larger, and common power distribution cabinet is difficult to reach anti-lightning strike effect " the problem of, there is provided a kind of lightning protection is matched somebody with somebody
Electric cabinet.
In order to solve the above technical problems, the utility model adopts the technical scheme that, a kind of lightning protection power distribution cabinet, including inside
Cabinet and outside cabinet, internal cabinet are arranged in outer cabinet body and between the outer wall of internal cabinet and the inwall of outside cabinet
It is provided with gap；The inner cabinet is socketed with metal grading ring in vitro, metal grading ring electrically connected with outside cabinet and not with
Inner cabinet body wall contacts；The metal grading ring is connected with earth brace, the lower end ground connection of earth brace；Set in the inner cabinet body
Line-to-ground copper bar is equipped with, Surge Protector is connected between line-to-ground copper bar and earth brace；The upper end of the outside cabinet
Arrester is provided with, arrester electrically connects with earth brace；Gap discharge connection dress is provided between the arrester and earth brace
Put.
In the technical scheme of the application, arrester is added, thunder-strike current is received by arrester, and will by earth brace
Thunder-strike current imported into ground, prevents lightning damage power distribution cabinet.Also, due to after thunderbolt lightning current by when, inside distribution box
Easily forming induced electricity causes power distribution cabinet internal components can not normal work.In the technical scheme of the application internally cabinet and
Metal grading ring is provided between outside cabinet, metal grading ring causes the electric voltage equalization on the surface of internal cabinet, do not had
The situation of voltage levels skewness, prevent from producing induced-current in inner cabinet body.The setting of outside cabinet causes internal cabinet
Completely cut off with thunder and lightning, further protect the electrical equipment in inner cabinet body.
Optimization, above-mentioned lightning protection power distribution cabinet, the gap discharge attachment means include top cabinet, and top cabinet is arranged at
The top of outside cabinet, is provided with felt pad between top cabinet and outside cabinet, the lower end of arrester passes through top cabinet
Top end face is simultaneously stretched into top tank body, and insulating sleeve is provided between arrester and top cabinet；The lower end of the arrester connects
An arrester ball discharge is connected to, a bottom ball discharge is provided with top tank body, bottom ball discharge is connected with insulating bar, absolutely
The end of edge rod is fixedly connected with wall in top tank body.Bottom ball discharge electrically connects with metal grading ring.
Optimization, above-mentioned lightning protection power distribution cabinet, discharging gap is provided between the arrester ball discharge and bottom ball discharge,
Discharging gap is less than arrester ball discharge, the diameter of bottom ball discharge.
Lightning current accesses arrester ball discharge by arrester, and punctures between arrester ball discharge and bottom ball discharge
It is grounded after discharging gap by bottom ball discharge.Discharged by the discharging gap between arrester ball discharge and bottom ball discharge
Mode reduces the residual voltage of grounded neutral, improves the protection shoved over the ground of the single-phase earthing system of circuit in power distribution cabinet.
Optimize, above-mentioned lightning protection power distribution cabinet, built-in electrical insulation plate is fitted with the inwall of the internal cabinet.
Built-in electrical insulation plate further protects the circuit in inner cabinet body, prevents thunder and lightning from puncturing.
Optimization, above-mentioned lightning protection power distribution cabinet, the quantity of the metal grading ring is multiple, and metal grading ring is uniformly arranged on
Inner cabinet is external, and adjacent two metal grading rings are electrically connected and are arranged at intervals.
Optimize, above-mentioned lightning protection power distribution cabinet, insulating foams are filled with the gap.
Insulating foams to insulate between internal cabinet and outside cabinet, prevent outside cabinet from connecing the thunder and lightning breakdown drawn and entering
Into inner cabinet body.
Optimize, above-mentioned lightning protection power distribution cabinet, be provided with some radiating tubes on the interior lower end face of the internal cabinet, radiate
One end of pipe is arranged in inner cabinet body, and the other end of radiating tube passes through the bottom side of the wall of internal cabinet, the lower end of outside cabinet
Side wall.
The effect of radiating tube air passage radiating, prevent from, because generating heat when the electrical equipment in inner cabinet body works, causing inner cabinet
Body temperature is too high and influences the normal work of electrical equipment.
The drawbacks of overcoming prior art the utility model has the advantage of it, novelty reasonable in design.The application's
In technical scheme, arrester is added, thunder-strike current is received by arrester, and imported into thunder-strike current by earth brace
Ground, prevent lightning damage power distribution cabinet.Also, due to after thunderbolt lightning current by when, induced electricity is easily formed inside distribution box
Cause power distribution cabinet internal components can not normal work.Internally set in the technical scheme of the application between cabinet and outside cabinet
Metal grading ring is put, metal grading ring causes the electric voltage equalization on the surface of internal cabinet, does not have voltage levels distribution not
Equal situation, prevent from producing induced-current in inner cabinet body.The setting of outside cabinet causes internal cabinet to completely cut off with thunder and lightning, enters one
Electrical equipment in step protection inner cabinet body.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
The technical characterstic of the present invention is expanded on further with specific embodiment below in conjunction with the accompanying drawings.
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining this
Utility model, it is not used to limit the utility model.
As shown in figure 1, the utility model is a kind of lightning protection power distribution cabinet, including internal cabinet 1 and outside cabinet 2, inner cabinet
Body 1 is arranged in outside cabinet 2 and is provided with gap 3 between the outer wall of internal cabinet 1 and the inwall of outside cabinet 2；It is described
Be socketed with metal grading ring 4 outside internal cabinet 1, metal grading ring 4 electrically connected with outside cabinet 2 and not with outside internal cabinet 1
Wall contacts；The metal grading ring 4 is connected with earth brace 41, the lower end ground connection of earth brace 41；Set in the internal cabinet 1
There is circuit grounding copper bar 7, Surge Protector 8 is connected between line-to-ground copper bar 7 and earth brace 41；The outside cabinet 2
Upper end is provided with arrester 5, and arrester 5 electrically connects with earth brace 41；Between being provided between the arrester 5 and earth brace 41
Gap electric discharge attachment means.
In the technical scheme of the application, arrester 5 is added, thunder-strike current is received by arrester 5, and pass through earth brace
Thunder-strike current is imported into ground by 41, prevents lightning damage power distribution cabinet.Also, due to after thunderbolt lightning current by when, distribution box
The internal induced electricity that easily formed causes power distribution cabinet internal components can not normal work.Internally cabinet in the technical scheme of the application
Metal grading ring 4 is provided between body 1 and outside cabinet 2, metal grading ring 4 make it that the voltage on the surface of internal cabinet 1 is equal
Weighing apparatus, the situation of voltage levels skewness is not had, prevent from producing induced-current in internal cabinet 1.The setting of outside cabinet 2
So that internal cabinet 1 completely cuts off with thunder and lightning, the electrical equipment in internal cabinet 1 is further protected.
The gap discharge attachment means include top cabinet 6, and top cabinet 6 is arranged at the top of outside cabinet 2, top
Felt pad 21 is provided between cabinet 6 and outside cabinet 2, the lower end of arrester 5 passes through the top end face of top cabinet 6 and stretched into
In portion's cabinet 6, insulating sleeve 51 is provided between arrester 5 and top cabinet 6；The lower end of the arrester 5 is connected with one
Arrester ball discharge 54, a bottom ball discharge 52 is provided with top cabinet 6, bottom ball discharge 52 is connected with insulating bar 53,
The end of insulating bar 53 is fixedly connected with the inwall of top cabinet 6.Bottom ball discharge 52 electrically connects with metal grading ring 4.
Discharging gap is provided between the arrester ball discharge 54 and bottom ball discharge 52, discharging gap is less than arrester
The diameter of ball discharge 54, bottom ball discharge 52.
Lightning current accesses arrester ball discharge 54 by arrester 5, and punctures arrester ball discharge 54 and bottom ball discharge
It is grounded after discharging gap between 52 by bottom ball discharge 52.By between arrester ball discharge 54 and bottom ball discharge 52
The mode of discharging gap electric discharge reduce the residual voltage of grounded neutral, improve the single-phase earthing system of circuit in power distribution cabinet over the ground
The protection shoved.
Built-in electrical insulation plate 11 is fitted with the inwall of the internal cabinet 1.
Built-in electrical insulation plate 11 further protects the circuit in internal cabinet 1, prevents thunder and lightning from puncturing.
The quantity of the metal grading ring 4 is multiple, and metal grading ring 4 is uniformly arranged on outside internal cabinet 1, adjacent two
Individual metal grading ring 4 is electrically connected and is arranged at intervals.
Insulating foams are filled with the gap 3.
Insulating foams to insulate between internal cabinet 1 and outside cabinet 2, prevent outside cabinet 2 from connecing the thunder and lightning breakdown drawn
Enter in internal cabinet 1.
Some radiating tubes 12 are provided with the interior lower end face of the internal cabinet 1, in one end of radiating tube 12 is arranged at
In portion's cabinet 1, the other end of radiating tube 12 passes through bottom side of the wall, the bottom side of the wall of outside cabinet 2 of internal cabinet 1.
The effect of the air passage radiating of radiating tube 12, prevent from, because generating heat when the electrical equipment in internal cabinet 1 works, causing inside
Cabinet body temperature is too high and influences the normal work of electrical equipment.
Certainly, it is to limitation of the present utility model that described above, which is not, and the utility model is also not limited to the example above, this
The those of ordinary skill of technical field, in essential scope of the present utility model, the variations, modifications, additions or substitutions made, all
The scope of protection of the utility model should be belonged to.
Claims (7)
- A kind of 1. lightning protection power distribution cabinet, it is characterised in that；Including internal cabinet (1) and outside cabinet (2), internal cabinet (1) is set Gap (3) is provided with outside cabinet (2) and between the outer wall of internal cabinet (1) and the inwall of outside cabinet (2)；It is described Be socketed with metal grading ring (4) outside internal cabinet (1), metal grading ring (4) electrically connected with outside cabinet (2) and not with inside Cabinet (1) wall contacts；The metal grading ring (4) is connected with earth brace (41), the lower end ground connection of earth brace (41)；In described Line-to-ground copper bar (7) is provided with portion's cabinet (1), surge guarantor is connected between line-to-ground copper bar (7) and earth brace (41) Protect device (8)；The upper end of the outside cabinet (2) is provided with arrester (5), and arrester (5) electrically connects with earth brace (41)；It is described Gap discharge attachment means are provided between arrester (5) and earth brace (41).
- 2. lightning protection power distribution cabinet according to claim 1, it is characterised in that：The gap discharge attachment means include top tank Body (6), top cabinet (6) are arranged at the top of outside cabinet (2), are provided between top cabinet (6) and outside cabinet (2) absolutely Edge pad (21), the lower end of arrester (5) pass through the top end face of top cabinet (6) and stretched into top cabinet (6), arrester (5) Insulating sleeve (51) is provided between top cabinet (6)；The lower end of the arrester (5) is connected with an arrester ball discharge (54) a bottom ball discharge (52), is provided with top cabinet (6), bottom ball discharge (52) is connected with insulating bar (53), absolutely The end of edge rod (53) is fixedly connected with top cabinet (6) inwall；Bottom ball discharge (52) electrically connects with metal grading ring (4).
- 3. lightning protection power distribution cabinet according to claim 2, it is characterised in that：The arrester ball discharge (54) is discharged with bottom Discharging gap is provided between ball (52), discharging gap is less than arrester ball discharge (54), the diameter of bottom ball discharge (52).
- 4. lightning protection power distribution cabinet according to claim 1, it is characterised in that：It is fitted with the inwall of the internal cabinet (1) Built-in electrical insulation plate (11).
- 5. lightning protection power distribution cabinet according to claim 1, it is characterised in that：The quantity of the metal grading ring (4) to be multiple, Metal grading ring (4) is uniformly arranged on internal cabinet (1) outside, and adjacent two metal grading rings (4), which electrically connect and are spaced, to be set Put.
- 6. lightning protection power distribution cabinet according to claim 1, it is characterised in that：Insulating foams are filled with the gap (3).
- 7. lightning protection power distribution cabinet according to claim 1, it is characterised in that：On the interior lower end face of the internal cabinet (1) Some radiating tubes (12) are provided with, one end of radiating tube (12) is arranged in internal cabinet (1), and the other end of radiating tube (12) is worn Cross bottom side of the wall, the bottom side of the wall of outside cabinet (2) of internal cabinet (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720738442.5U CN207038963U (en) | 2017-06-22 | 2017-06-22 | A kind of lightning protection power distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720738442.5U CN207038963U (en) | 2017-06-22 | 2017-06-22 | A kind of lightning protection power distribution cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207038963U true CN207038963U (en) | 2018-02-23 |
Family
ID=61467494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720738442.5U Expired - Fee Related CN207038963U (en) | 2017-06-22 | 2017-06-22 | A kind of lightning protection power distribution cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207038963U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109936055A (en) * | 2019-03-26 | 2019-06-25 | 海南电网有限责任公司三沙供电局 | A kind of Multifunction outdoor power distribution cabinet |
-
2017
- 2017-06-22 CN CN201720738442.5U patent/CN207038963U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109936055A (en) * | 2019-03-26 | 2019-06-25 | 海南电网有限责任公司三沙供电局 | A kind of Multifunction outdoor power distribution cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180223 Termination date: 20180622 |