CN107370341A - A kind of current transformer of double sealing structure - Google Patents
A kind of current transformer of double sealing structure Download PDFInfo
- Publication number
- CN107370341A CN107370341A CN201710491556.9A CN201710491556A CN107370341A CN 107370341 A CN107370341 A CN 107370341A CN 201710491556 A CN201710491556 A CN 201710491556A CN 107370341 A CN107370341 A CN 107370341A
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- CN
- China
- Prior art keywords
- bending
- flanging
- doorframe
- cabinet door
- current transformer
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- 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.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Abstract
The invention discloses a kind of current transformer of double sealing structure, cabinet door including cabinet frame and in cabinet frame, position corresponding with the cabinet door folding is provided with doorframe in the cabinet frame, the edge of the doorframe is provided with the first bending of the cabinet door projection, the first bending end is provided with the second bending of propylaeum outer frame week projection, the doorframe, guiding gutter is formed between first bending and second bending, in the cabinet door seal groove is provided with the second bending corresponding position, interior sealing bar is provided between second bending and the seal groove, external seal strip is provided between the cabinet door edge and the doorframe.The present invention has the advantages that reliable structure, good seal performance, service life are long.
Description
Technical field
The present invention relates to convertor equipment, more particularly to a kind of current transformer of double sealing structure.
Background technology
Current transformer is to make voltage, frequency, the number of phases and other electricity of power-supply system or electric equipment that characteristic changes,
Have a wide range of applications occasion.Such as：（1）New energy industry：Photovoltaic DC-to-AC converter, wind electric converter etc.；（2）Save industry：It is high
Volage current transformer；（3）Quality of power supply industry：Dynamic synchronization reactive-load compensator SVG, Active Power Filter-APF APF；（4）Electric locomotive
Industry：Locomotive Converter, subway, high ferro, light rail etc.；（5）Mining industry：Mining current transformer, the traction of mining electric wheel become
Flow device etc..Current transformer requires stricter, the fine or not direct relation of sealing property as a kind of electrical equipment to waterproof and dustproof
To current transformer service life and internal electrical components it is safe to use.The current transformer degree of protection of general indoor application type exists
IP20 or so may conform to require.And for the large-scale current transformer that outdoor application or particular surroundings use, such as mining electric wheel
Dumper current transformer is outdoor to rain, it is necessary to consider dust storm dust, often there is higher seal request, and its IP grade is (i.e. electric
Device housings are to allotrylic degree of protection) or even require to reach IP65.
Traditional way is simply in one side adhesive seal rubber or sponge, by external dust, steam and casing
Portion's isolation is come, and such structure is extremely difficult to desired IP grades under bad weather (such as heavy rain etc.) or particular surroundings.
Furthermore in the current transformer of outdoor application, often face drench with rain and Exposure to Sunlight, particularly encapsulant would generally directly contact rainwater and
Exposure to Sunlight, after the regular hour, sealing strip reduced lifetime causes seal failure, and infiltration phenomenon often occurs.It is meanwhile existing
In some sealing structures, the door frame contact face being engaged with sealing strip is the cross section of doorframe steel plate, and contact area is small, sealing strip pressure
Modeling amount is small, and in order to ensure sealing effectiveness, cabinet is required to higher machining accuracy and matching requirements with cabinet door, increases current transformer
The difficulty of processing of cabinet.And in some special application operating modes, such as operating mode is vibrated, cabinet door is produced stress and change
Shape, cause to cause sealing structure to fail.In addition, in existing sealing structure, limited by cabinet door shape, sealing strip is more by four
Sealing strip is on the corner pasted from beginning to end to be formed by connecting, and the risk for pasting failure be present.
The content of the invention
The technical problem to be solved in the present invention is overcome the deficiencies in the prior art, there is provided a kind of structure is reliable, sealing property
The current transformer of good, service life length double sealing structure.
In order to solve the above technical problems, the present invention uses following technical scheme：
A kind of current transformer of double sealing structure, including cabinet frame and the cabinet door in cabinet frame, the cabinet frame
Upper position corresponding with the cabinet door folding is provided with doorframe, and the edge of the doorframe is provided with the first folding of the cabinet door projection
Curved, the first bending end is provided with the second bending of propylaeum outer frame week projection, the doorframe, first bending and described the
Form guiding gutter between two bendings, be provided with seal groove in the cabinet door with the second bending corresponding position, second bending with
Interior sealing bar is provided between the seal groove, external seal strip is provided between the cabinet door edge and the doorframe.
Further improvement as above-mentioned technical proposal：
The cabinet door edge is provided with the first flanging of the doorframe projection, the external seal strip located at first flanging with
Between the doorframe.
First flanging is that round-corner transition is sentenced in rectangular configuration and corner, and the external seal strip is along the first flanging cloth
Put and the seam at both ends is located at the bottom of the first flanging.
The external seal strip includes the first hollow seal portion and the first Access Division, and first Access Division is arranged in described
On one flanging, the first hollow seal portion is close to the doorframe.
The cabinet door edge is provided with the first flanging of the doorframe projection, and the first flanging end is provided with towards described
Second flanging of cabinet door periphery projection, the external seal strip are located between second flanging and the doorframe.
Second flanging is that round-corner transition is sentenced in rectangular configuration and corner, and the external seal strip is along the second flanging cloth
Put and the seam at both ends is located at the bottom of the second flanging.
The external seal strip includes the first hollow seal portion and the first Access Division, and first Access Division is arranged in described
On two flangings, the first hollow seal portion is close to the doorframe.
The seal groove is that round-corner transition is sentenced in rectangular channel and corner, the interior sealing bar be fixed in the seal groove and
The seam at both ends is located at the bottom of seal groove.
The seal groove and second bending are rectangular configuration and round-corner transition, the interior sealing bar one are sentenced in corner
Side arranges that opposite side is close to the seal groove along second bending, and the seam at the interior sealing bar both ends is positioned at described close
Sealing groove and the bottom of second bending.
The interior sealing bar includes the second hollow seal portion and the second Access Division, and second Access Division is arranged in described
In two bendings, the second hollow seal portion is close to the seal groove.
Compared with prior art, the advantage of the invention is that：The current transformer of double sealing structure disclosed by the invention, in cabinet door
External seal strip is provided between edge and doorframe, interior sealing bar, inside and outside double-layer seal altogether are provided between the second bending and seal groove
Structure, the reliability of sealing is improved, guiding gutter is formed between doorframe, the first bending and the second bending, in outer layer sealing structure
After failure, rainwater can carry out water conservancy diversion by guiding gutter, avoid rainwater from entering cabinet machine frame inside, ensure sealing property, protection
Grade can reach IP65 and in the presence of outer layer sealing structure, guiding gutter and seal groove, and internal layer sealing structure is in cabinet door
In the sealing space in portion, do not influenceed substantially by rainwater and sunshine, it is ensured that the service life of internal layer sealing structure.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the current transformer of double sealing structure of the present invention.
Fig. 2 is the dimensional structure diagram of the cabinet frame in the present invention.
Fig. 3 is the overlooking the structure diagram of the cabinet frame in the present invention.
Fig. 4 is the structure schematic diagram of the cabinet door in the present invention.
Fig. 5 is structural representation of the external seal strip of the first embodiment of the invention before cabinet door fastening.
Fig. 6 is the external seal strip of the first embodiment of the invention in the next structural representation of cabinet door buckle.
Fig. 7 is structural representation of the external seal strip of second of embodiment of the invention before cabinet door fastening.
Fig. 8 is structural representation of the interior sealing bar of second of embodiment of the invention before cabinet door fastening.
Each label represents in figure：
1st, cabinet frame；11st, doorframe；12nd, the first bending；13rd, the second bending；2nd, cabinet door；21st, the first flanging；22nd, the second folding
Side；3rd, guiding gutter；4th, interior sealing bar；41st, the second hollow seal portion；42nd, the second Access Division；5th, external seal strip；51st, first is hollow
Sealing；52nd, the first Access Division；6th, seal groove；7th, hinge；8th, fixed seat.
Embodiment
The present invention is described in further detail below in conjunction with Figure of description and specific embodiment.
Embodiment one
As shown in Figures 1 to 6, the current transformer of the double sealing structure of the present embodiment, including cabinet frame 1 and installed in cabinet frame
Cabinet door 2 on 1, position corresponding with the folding of cabinet door 2 is provided with doorframe 11 in cabinet frame 1, and the edge of doorframe 11 is provided with cabinet
First bending 12 of 2 projections of door, the end of the first bending 12 are provided with the second bending 13 towards the periphery projection of doorframe 11, doorframe 11, the
Guiding gutter 3 is formed between one bending 12 and the second bending 13, is provided with seal groove 6 in cabinet door 2 with the corresponding position of the second bending 13, second
Interior sealing bar 4 is provided between bending 13 and seal groove 6, external seal strip 5 is provided between the edge of cabinet door 2 and doorframe 11.Wherein, cabinet door
2 is be hinged by hinge 7 with cabinet frame 1, will be divided into cabinet door 2 by bolt and connects with a pair of fixed seats 8 in cabinet frame 1
Connect, and then realize the fastening of cabinet door 2 and cabinet frame 1；Second bending 13 is parallel with doorframe 11, namely guiding gutter in the present embodiment
3 be U-type groove.
The current transformer of the double sealing structure, external seal strip 5 is provided between the edge of cabinet door 2 and doorframe 11, in the second bending
It is provided with interior sealing bar 4 between 13 and seal groove 6, inside and outside double-layer sealing structure altogether improves the reliability of sealing, doorframe 11, the
Guiding gutter 3 is formed between one bending 12 and the second bending 13, after the failure of outer layer sealing structure, rainwater etc. can pass through guiding gutter
3 carry out water conservancy diversion, avoid rainwater from entering inside cabinet frame 1, ensure sealing property, and degree of protection can reach IP65, and in outer layer
In the presence of sealing structure, guiding gutter 3 and seal groove 6, internal layer sealing structure is in the sealing space inside cabinet door 2, substantially
Do not influenceed by rainwater and sunshine, it is ensured that the service life of internal layer sealing structure.
In the present embodiment, the edge of cabinet door 2 is provided with the first flanging 21 of the projection of doorframe 11, and external seal strip 5 is located at first
Between flanging 21 and doorframe 11.Wherein, the second bending 13 to the distance of doorframe 11 is more than the first flanging 21 to the distance of doorframe 11.
In the present embodiment, the first flanging 21 is that round-corner transition is sentenced in rectangular configuration and corner, and external seal strip 5 is along the first flanging
21 arrangements and the seam at both ends are located at the bottom of the first flanging 21.First flanging 21 is rectangular configuration and fillet mistake is sentenced in corner
Cross so that external seal strip 5 can use the sealing strip of wall scroll length, reduce seam quantity, and can ensure the sealing at corner
Can, the seam at the both ends of external seal strip 5 is arranged on to the bottom of the first flanging 21, can at utmost reduce seam for sealing property
Influence（Seam generally use glue is bonded, and the hidden danger of adhesive failure be present）.
In the present embodiment, external seal strip 5 includes the first hollow seal portion 51 and the first Access Division 52, and the first Access Division 52 is blocked
On the first flanging 21, the first hollow seal portion 51 is close to doorframe 11.Using hollow seal structure, external seal can be increased
Compression moulding after bar 5 is pressurized deforms, and increases contact area, improves sealing property, reduces the difficulty of processing of cabinet.Wherein, the first card
Filling glue in socket part 52, it can facilitate and closely be clamped on the first flanging 21.
In the present embodiment, the bending 13 of seal groove 6 and second is rectangular configuration and round-corner transition, interior sealing bar are sentenced in corner
4 sides arrange that opposite side is close to seal groove 6 along the second bending 13, and the seam at the both ends of interior sealing article 4 is located at seal groove 6 and
The bottom of two bendings 13.The bending 13 of seal groove 6 and second is rectangular configuration and round-corner transition is sentenced in corner so that interior sealing bar
4 can use the sealing strips of wall scroll length, reduce seam quantity, and can ensure the sealing property at corner, by 4 liang of interior sealing bar
The seam at end is arranged on the bottom of the bending 13 of seal groove 6 and second, can at utmost reduce influence of the seam for sealing property
（Seam generally use glue is bonded, and the hidden danger of adhesive failure be present）.Wherein, seal groove 6 is using the opposite L-type plate of four pairs of openings
Material is welded in cabinet door 2, corner is smoothly transitted by welding arc plate realization；The corner of second bending 13 is again by weldering
Arc plate realization is connect to smoothly transit；Interior sealing bar 4, external seal strip 5 use foamed silastic sealing strip, have compressible amount
Greatly, the features such as elasticity is good, stress relaxation is small, close eucaryotic cell structure can provide stronger sealing property and enduring quality.
In the present embodiment, interior sealing bar 4 includes the second hollow seal portion 41 and the second Access Division 42, and the second Access Division 42 is blocked
In the second bending 13, the second hollow seal portion 41 is close to seal groove 6.Using hollow seal structure, can increase interior close
Compression moulding after strip of paper used for sealing 4 is pressurized deforms, and increases contact area, improves sealing property, reduces the difficulty of processing of cabinet.Wherein, second
Filling glue in Access Division 42, it can facilitate and closely be clamped in the second bending 13.
Embodiment two
As shown in fig. 7, the current transformer of the double sealing structure of the present embodiment and embodiment one are essentially identical, difference is, this
In embodiment, the edge of cabinet door 2 is provided with the first flanging 21 of the projection of doorframe 11, and the end of the first flanging 21 is additionally provided with towards cabinet door 2
Second flanging 22 of periphery projection, external seal strip 5 are located between the second flanging 22 and doorframe 11.
Correspondingly, in the present embodiment, external seal strip 5 is arranged along the second flanging 22 and the seam at both ends is located at the second flanging 22
Bottom.Correspondingly, in the present embodiment, the first Access Division 52 of external seal strip 5 is arranged on the second flanging 22, and first is hollow close
It is close to doorframe 11 in envelope portion 51.
Embodiment three
As shown in figure 8, the current transformer of the double sealing structure of the present embodiment and embodiment one are essentially identical, difference is, this
In embodiment, seal groove 6 is rectangular channel and round-corner transition is sentenced in corner, and interior sealing bar 4 is bonded and fixed to seal groove 6 by glue
Interior and both ends seams are located at the bottom of seal groove 6.In addition, interior sealing bar 4 uses hollow D font structures, equally can be real
Now good sealing effectiveness.
Although the present invention is disclosed above with preferred embodiment, but is not limited to the present invention.It is any to be familiar with ability
The technical staff in domain, in the case where not departing from technical solution of the present invention scope, all using the technology contents pair of the disclosure above
Technical solution of the present invention makes many possible changes and modifications, or is revised as the equivalent embodiment of equivalent variations.Therefore, it is every
Without departing from the content of technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments,
Equivalent variations and modification, it all should fall in the range of technical solution of the present invention protection.
Claims (10)
- A kind of 1. current transformer of double sealing structure, it is characterised in that：Including cabinet frame（1）With installed in cabinet frame（1）On Cabinet door（2）, the cabinet frame（1）The upper and cabinet door（2）Position corresponding to folding is provided with doorframe（11）, the doorframe （11）Edge be provided with the cabinet door（2）First bending of projection（12）, first bending（12）End is provided with propylaeum Frame（11）Second bending of periphery projection（13）, the doorframe（11）, first bending（12）With second bending（13） Between form guiding gutter（3）, the cabinet door（2）Upper and second bending（13）Corresponding position is provided with seal groove（6）, described second Bending（13）With the seal groove（6）Between be provided with interior sealing bar（4）, the cabinet door（2）Edge and the doorframe（11）Between Provided with external seal strip（5）.
- 2. the current transformer of double sealing structure according to claim 1, it is characterised in that：The cabinet door（2）Edge is provided with court To the doorframe（11）First flanging of projection（21）, the external seal strip（5）Located at first flanging（21）With the door Frame（11）Between.
- 3. the current transformer of double sealing structure according to claim 2, it is characterised in that：First flanging（21）For rectangle Round-corner transition, the external seal strip are sentenced in structure and corner（5）Along first flanging（21）Arrange and the seam at both ends is located at First flanging（21）Bottom.
- 4. the current transformer of double sealing structure according to claim 2, it is characterised in that：The external seal strip（5）Including One hollow seal portion（51）And first Access Division（52）, first Access Division（52）It is arranged in first flanging（21）On, The first hollow seal portion（51）With the doorframe（11）It is close to.
- 5. the current transformer of double sealing structure according to claim 1, it is characterised in that：The cabinet door（2）Edge is provided with court To the doorframe（11）First flanging of projection（21）, first flanging（21）End is provided with towards the cabinet door（2）Dash forward periphery The second flanging risen（22）, the external seal strip（5）Located at second flanging（22）With the doorframe（11）Between.
- 6. the current transformer of double sealing structure according to claim 5, it is characterised in that：Second flanging（22）For rectangle Round-corner transition, the external seal strip are sentenced in structure and corner（5）Along second flanging（22）Arrange and the seam at both ends is located at Second flanging（22）Bottom.
- 7. the current transformer of double sealing structure according to claim 5, it is characterised in that：The external seal strip（5）Including One hollow seal portion（51）And first Access Division（52）, first Access Division（52）It is arranged in second flanging（22）On, The first hollow seal portion（51）With the doorframe（11）It is close to.
- 8. the current transformer of double sealing structure according to any one of claim 1 to 7, it is characterised in that：The seal groove （6）Round-corner transition, the interior sealing bar are sentenced for rectangular channel and corner（4）It is fixed on the seal groove（6）It is interior and both ends to connect Seam is located at seal groove（6）Bottom.
- 9. the current transformer of double sealing structure according to any one of claim 1 to 7, it is characterised in that：The seal groove （6）With second bending（13）It is rectangular configuration and round-corner transition, the interior sealing bar are sentenced in corner（4）Side is along described Second bending（13）Arrangement, opposite side and the seal groove（6）It is close to, the interior sealing bar（4）The seam at both ends is positioned at described Seal groove（6）With second bending（13）Bottom.
- 10. the current transformer of double sealing structure according to any one of claim 1 to 7, it is characterised in that：The interior sealing Bar（4）Including the second hollow seal portion（41）And second Access Division（42）, second Access Division（42）It is arranged in described second Bending（13）On, the second hollow seal portion（41）With the seal groove（6）It is close to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710491556.9A CN107370341A (en) | 2017-06-20 | 2017-06-20 | A kind of current transformer of double sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710491556.9A CN107370341A (en) | 2017-06-20 | 2017-06-20 | A kind of current transformer of double sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107370341A true CN107370341A (en) | 2017-11-21 |
Family
ID=60305504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710491556.9A Pending CN107370341A (en) | 2017-06-20 | 2017-06-20 | A kind of current transformer of double sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107370341A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109906002A (en) * | 2019-04-09 | 2019-06-18 | 广东电网有限责任公司 | A kind of protective door and a kind of protective housing |
| CN111404355A (en) * | 2018-12-27 | 2020-07-10 | 株洲中车时代电气股份有限公司 | Traction converter for mining electric wheel dumper |
| CN112593826A (en) * | 2020-11-13 | 2021-04-02 | 新疆特变电工自控设备有限公司 | Prefabricated cabin door with double-sealing structure |
| WO2024030701A1 (en) * | 2022-08-03 | 2024-02-08 | Volta Charging, Llc | Electric vehicle charging station having a drainage system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201115090Y (en) * | 2007-10-12 | 2008-09-10 | 艾默生网络能源有限公司 | Outdoor cabinet door |
| CN205385401U (en) * | 2016-02-22 | 2016-07-13 | 中车株洲电力机车研究所有限公司 | Converter cabinet body |
| US20160234953A1 (en) * | 2013-09-16 | 2016-08-11 | Jeffrey S. Ellingson | Self-Draining Gasket for an Enclosure |
| JP2016152250A (en) * | 2015-02-16 | 2016-08-22 | 株式会社デンソー | Outdoor cabinet |
-
2017
- 2017-06-20 CN CN201710491556.9A patent/CN107370341A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201115090Y (en) * | 2007-10-12 | 2008-09-10 | 艾默生网络能源有限公司 | Outdoor cabinet door |
| US20160234953A1 (en) * | 2013-09-16 | 2016-08-11 | Jeffrey S. Ellingson | Self-Draining Gasket for an Enclosure |
| JP2016152250A (en) * | 2015-02-16 | 2016-08-22 | 株式会社デンソー | Outdoor cabinet |
| CN205385401U (en) * | 2016-02-22 | 2016-07-13 | 中车株洲电力机车研究所有限公司 | Converter cabinet body |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111404355A (en) * | 2018-12-27 | 2020-07-10 | 株洲中车时代电气股份有限公司 | Traction converter for mining electric wheel dumper |
| CN111404355B (en) * | 2018-12-27 | 2021-05-04 | 株洲中车时代电气股份有限公司 | Traction converter for mining electric wheel dumper |
| CN109906002A (en) * | 2019-04-09 | 2019-06-18 | 广东电网有限责任公司 | A kind of protective door and a kind of protective housing |
| CN112593826A (en) * | 2020-11-13 | 2021-04-02 | 新疆特变电工自控设备有限公司 | Prefabricated cabin door with double-sealing structure |
| WO2024030701A1 (en) * | 2022-08-03 | 2024-02-08 | Volta Charging, Llc | Electric vehicle charging station having a drainage system |
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Application publication date: 20171121 |
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