CN203787839U - Ring main unit - Google Patents
Ring main unit Download PDFInfo
- Publication number
- CN203787839U CN203787839U CN201420223124.1U CN201420223124U CN203787839U CN 203787839 U CN203787839 U CN 203787839U CN 201420223124 U CN201420223124 U CN 201420223124U CN 203787839 U CN203787839 U CN 203787839U
- Authority
- CN
- China
- Prior art keywords
- main unit
- ring main
- rear shrouding
- sealing plate
- back side
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Casings For Electric Apparatus (AREA)
Abstract
Disclosed in the utility model is a ring main unit comprising a cabinet body. A pressure relief window is arranged at the rear side plate of the cabinet body. Besides, the ring main unit also includes a rear sealing plate, wherein the cross section of the rear sealing plate is in a U shape after horizontal plane cutting off; the two sides of the rear sealing plate bend outwardly by 90 degrees to form installing plates and installing holes are formed in the installing plates; and the rear sealing plate is fixed at the rear side plate by bolts or screws that pass through the installing holes and are screwed to the rear side plate. The rear sealing plate and the rear side plate are fixed together; and then an upper opening is formed at the rear upper portion and a lower opening is formed in the lower portion. Meanwhile, a cover plate cooperating with the upper opening is hinged to the upper side of the rear sealing plate; and a sealing plate cooperating with the lower opening is connected to the lower side of the rear sealing plate. According to the scheme, the provided ring main unit has the advantage that the explosion gas in the ring main unit can be preventing from hurting the human body in the rear of the ring main unit.
Description
Technical field
The present invention relates to power distribution cabinet technical field, especially relate to a kind of ring main unit.
Background technology
ABB ring main unit is a most common class power distribution cabinet.As shown in Figure 1, structural limitations due to this ring main unit itself, its cabinet 10 tops are sealed by bus-bar room and control room, therefore pressure release window 12 can only opening on the back side panel 11 of this cabinet 10, if thereby blasted, the human body that gas can stand in after cabinet at that time by 12 pairs of pressure release windows the weakest after cabinet produces impact, finally the person is damaged.
Summary of the invention
The object of this invention is to provide a kind of ring main unit, it has the advantages that the explosion gas that can avoid in cabinet damages being positioned at the human body at cabinet rear.
The technical solution adopted in the present invention is: ring main unit, comprise cabinet, the back side panel of this cabinet is provided with pressure release window, described ring main unit also comprises that the cross section after horizontal plane blocks is the rear shrouding of " U " font, outside 90 ° of two sides of this rear shrouding are bent to form mounting panel, on this mounting panel, there is installing hole, this rear shrouding is fixed on this back side panel by the screw or the bolt that pass this installing hole and be screwed onto on this back side panel, this rear shrouding and this back side panel upper back that is fixed together is formed with upper shed, bottom is formed with under shed, simultaneously, on the upper side edge of this rear shrouding, be hinged with and cover plate that this upper shed matches, on the lower side of this rear shrouding, be connected with and shut that this under shed matches.
The bottom of described rear shrouding is provided with the chute perpendicular to this back side panel, and this shut is inserted in this chute.
Described rear shrouding internal welding is connected at least 2 and is vertical baffler.
The advantage that the present invention has is: can avoid the explosion gas in cabinet to damage being positioned at the human body at cabinet rear.Ring main unit of the present invention is not excessively changing under the prerequisite of cabinet body structure, by the setting of rear shrouding, once guide the explosion gas that produces blast in cabinet and form into top, thereby avoided explosion gas to damage being positioned at the human body at cabinet rear, safer.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described:
Fig. 1 is the rearview of the ring main unit of original technology;
Fig. 2 is the rearview of the ring main unit of embodiments of the invention;
Fig. 3 is the left view of the ring main unit of embodiments of the invention;
Fig. 4 is the rearview of rear shrouding of the present invention;
Fig. 5 is the left view of rear shrouding of the present invention;
Fig. 6 is the front view of rear shrouding of the present invention.
In figure: 10, cabinet, 11, back side panel, 12, pressure release window; 20, rear shrouding, 21, mounting panel, 211, installing hole, 22, upper shed, 23, under shed, 24, chute; 30, cover plate; 40, shut; 50, baffler.
Embodiment
Embodiment, is shown in shown in Fig. 1 and Fig. 2 to Fig. 6: ring main unit, comprises cabinet 10.The back side panel 11 of this cabinet 10 is provided with pressure release window 12.Further say, this ring main unit also comprises that the cross section after horizontal plane blocks is the rear shrouding 20 of " U " font, after the outside 90 ° of bendings of two sides of this rear shrouding 20, form mounting panel 21, on this mounting panel 21, have installing hole 211, this rear shrouding 20 is fixed on this back side panel 11 by the screw or the bolt that pass this installing hole 211 and be screwed onto on this back side panel 11.Obviously, such mounting means has reduced the installation difficulty of rear shrouding 20, and this rear shrouding 20 can form after only needing to adopt the materials such as a galvanized iron sheet to bend, very simple.Now, this rear shrouding 20 and this back side panel 11 are fixed together, and upper back is formed with upper shed 22, bottom is formed with under shed 23.Meanwhile, on the upper side edge of this rear shrouding 20, be hinged with and cover plate 30 that this upper shed 22 matches.That is, this cover plate 30, at ordinary times this upper shed 22 being formed to sealing, can be opened in time after being impacted.And, on the lower side of this rear shrouding 20, be connected with and shut 40 that this under shed 23 matches.Certainly, this shut 40 is at ordinary times in forming the state of closing to this under shed 23.Preferably, the bottom of this rear shrouding 20 is provided with the chute 24 perpendicular to this back side panel 11, and this shut 40 is inserted in this chute 24.That is,, in needs, this shut 40 can be extracted in this chute 24.
Further say, these rear shrouding 20 internal weldings are connected at least 2 and are vertical baffler 50.Like this, once be beneficial to the explosion gas forming, upwards scurry out smoothly, and strengthened the intensity of this rear shrouding 20.
The foregoing is only the preferred embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (3)
1. ring main unit, comprise cabinet (10), the back side panel (11) of this cabinet (10) is provided with pressure release window (12), it is characterized in that: described ring main unit also comprises that the cross section after horizontal plane blocks is the rear shrouding (20) of " U " font, outside 90 ° of two sides of this rear shrouding (20) are bent to form mounting panel (21), on this mounting panel (21), there is installing hole (211), this rear shrouding (20) is by being fixed on this back side panel (11) through this installing hole (211) and the screw or the bolt that are screwed onto on this back side panel (11), this rear shrouding (20) and this back side panel (11) upper back that is fixed together is formed with upper shed (22), bottom is formed with under shed (23), simultaneously, on the upper side edge of this rear shrouding (20), be hinged with and cover plate (30) that this upper shed (22) matches, on the lower side of this rear shrouding (20), be connected with and shut (40) that this under shed (23) matches.
2. ring main unit according to claim 1, is characterized in that: the bottom of described rear shrouding (20) is provided with the chute (24) perpendicular to this back side panel (11), and this shut (40) is inserted in this chute (24).
3. ring main unit according to claim 1 and 2, is characterized in that: described rear shrouding (20) internal welding is connected at least 2 and is vertical baffler (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420223124.1U CN203787839U (en) | 2014-04-30 | 2014-04-30 | Ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420223124.1U CN203787839U (en) | 2014-04-30 | 2014-04-30 | Ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203787839U true CN203787839U (en) | 2014-08-20 |
Family
ID=51323993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420223124.1U Expired - Fee Related CN203787839U (en) | 2014-04-30 | 2014-04-30 | Ring main unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203787839U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104577762A (en) * | 2014-12-26 | 2015-04-29 | 国家电网公司 | Safe ring main unit |
-
2014
- 2014-04-30 CN CN201420223124.1U patent/CN203787839U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104577762A (en) * | 2014-12-26 | 2015-04-29 | 国家电网公司 | Safe ring main unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20150430 |
|
| EXPY | Termination of patent right or utility model |