CN108538545A - Mutual inductor and its closure cover plate assembly - Google Patents
Mutual inductor and its closure cover plate assembly Download PDFInfo
- Publication number
- CN108538545A CN108538545A CN201810439746.0A CN201810439746A CN108538545A CN 108538545 A CN108538545 A CN 108538545A CN 201810439746 A CN201810439746 A CN 201810439746A CN 108538545 A CN108538545 A CN 108538545A
- Authority
- CN
- China
- Prior art keywords
- cover board
- bus
- closure cover
- closure
- mutual inductor
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/28—Current transformers
- H01F38/30—Constructions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/022—Encapsulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/025—Constructional details relating to cooling
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
- H02B1/06—Boards, panels, desks; Parts thereof or accessories therefor having associated enclosures, e.g. for preventing access to live parts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The present invention relates to a kind of mutual inductor and its block cover plate assembly, mutual inductor includes bus casing, there is the bus-bar passed through for bus-bar to perforate on the bus casing, the end of the bus casing is configured with the closure cover board for blocking bus-bar perforation, the closure cover board is equipped at least two, and each closure cover board is surrounded wears round for what bus-bar passed through.More than two closure cover boards are surrounded wears round for what bus-bar passed through, when closure cover board damages, bus-bar need not be moved, the closure cover board of damage need to only be removed and be replaced, it is inconvenient to solve the problems, such as that closure cover board in the prior art is replaced.In addition, the closure cover board that need to only carry out to damage is replaced, all closure cover boards blocked on bus casing need not be replaced, unspoiled closure cover board can also continue to use, and reduce the cost for blocking cover board.
Description
Technical field
The present invention relates to a kind of mutual inductor and its block cover plate assembly.
Background technology
Currently, there are two types of the mounting means of switchgear median generatrix bushing current transformer：It is a kind of to be integrally fixed in cabinet
On metal frame, another kind is integrally fixed on the side cabinet of switchgear.In order to meet wanting for metering, measurement and defencive function
Ask, multiple windings be often tied on a mutual inductor, add user's large capacity requirement, directly result in mutual inductor shape compared with
Greatly, then a portion of mutual inductor can be caused exposed outside switchgear using the mounting means on side cabinet.If
Closure processing is not carried out to the exposed parts of mutual inductor, the micronic dust in environment then can enter mutual inductor from wearing for mutual inductor from round
Or switchgear forms one layer of dunghill to accumulate in mutual inductor product surface or switchgear.When encountering mist, dew, drizzle
When equal weather, conductance increases, and decreasing insulating, mutual inductor easily occurs leaky, made to the normal operation of power equipment
At some potential safety problems.
Authorization Notice No. is CN207097649U, and authorized announcement date is that the Chinese patent of 2018.03.13 discloses a kind of electricity
Current transformer and closure cover board.Current transformer includes bus casing, and one end of the bus casing is connect with cabinet, the mother
The other end of thread casing be equipped with block cover board, it is described block cover board be equipped with for bus-bar plug wear round and for
The connection structure of bus casing connection.Connection structure include be arranged block cover board on mounting hole and for matching with mounting hole
Close the bolt of connection.It blocks cover board to be fixedly connected with the cooperation of the end of mutual inductor, dust and moisture is made to not easily pass through end position
In access switch cabinet, ensure the safe operation of power grid.But when the installation for carrying out mutual inductor is fixed, occur if blocking cover board
Damage then needs the bus-bar that will be installed in round to extract, and then carries out blocking the replacement of cover board and installing for bus-bar.
It causes to block cover board replacement complex steps, blocks cover board and replace inconvenient problem.
Invention content
The purpose of the present invention is to provide a kind of mutual inductors, and inconvenience is replaced to solve closure cover board in the prior art
Problem；The present invention also aims to provide a kind of closure cover plate assembly to solve the above problems.
The technical solution of mutual inductor of the present invention is：
Mutual inductor includes bus casing, there is the bus-bar passed through for bus-bar to perforate, the bus sheath on the bus casing
The end of pipe is configured with the closure cover board for blocking bus-bar perforation, and the closure cover board is equipped at least two, and each cover board that blocks encloses
Round is worn at what is passed through for bus-bar.
The beneficial effects of the invention are as follows：More than two closure cover boards are surrounded wears round for what bus-bar passed through, works as closure
When cover board damages, bus-bar need not be moved, the closure cover board of damage need to only be removed and be replaced, is solved existing
There is the cover board that blocks in technology to replace inconvenient problem.In addition, the closure cover board that need to only carry out to damage is replaced, it is not required to
All closure cover boards blocked on bus casing are replaced, unspoiled closure cover board can also continue to use, reduce
Block the cost of cover board.
For convenience of the connection of closure cover board and bus casing, releasable connection between adjacent closure cover board in this programme.
When carrying out blocking the connection of cover board and bus casing, first each closures cover board can be connected, then will connection completion closure cover board
Facilitate by the way that each connection for blocking cover board and bus casing once can be completed with the connection of bus casing and block cover board and mother
The connection of thread casing.
For convenience of the connection blocked between cover board, it is connect with adjacent closure cover board in closure cover board described in this programme
Groove and convex block are respectively equipped on two connecting pins, the groove is engaged by clamping with the adjacent convex block for blocking cover board, convex block and phase
The groove that neighbour blocks cover board is engaged by clamping.It blocks cover board to connect by groove and convex block clamping, connection and convenient disassembly.
The leakproofness that place is docked to ensure closure cover board with bus casing blocks cover board and is connected to busbar described in this programme
On the housing of casing, and the end face block for blocking cover board and housing coordinates.The end block for blocking cover board and housing is matched
It closes, can effectively ensure that and block the leakproofness that cover board docks place with bus casing, prevent dust and moisture from entering mutual inductance by docking
In device, ensure the degree of protection of switchgear.
For convenience of the connection of cover board and bus casing is blocked, the hole wall of the perforation of bus-bar described in this programme is equipped with buckle
Hole blocks cover board and is equipped with the buckle snapped connection with block button hole.By buckle with the connection of block button hole, facilitate block cover board with
The connection and dismounting of bus casing.
Cover board is blocked to increase each versatility for blocking cover board, described in this programme and is equipped with two, and two block cover board and close
It is symmetrical in the axis centre of bus casing.The structure all same for respectively blocking cover board in this way, only need to process a kind of closure cover board.
Cover board is blocked to ensure that the heat generated in the mutual inductor course of work can be discharged in time, described in this programme to be equipped with
Heat emission hole.The heat that mutual inductor generates when working can be dissipated to the external world by heat emission hole, ensure the normal work of mutual inductor.
The technical solution of closure cover plate assembly of the present invention is：
It includes at least two closure cover boards to block cover plate assembly, and each closure cover board is surrounded wears round for what bus-bar passed through.
Releasable connection between adjacent closure cover board.
It is respectively equipped with groove and convex block on two connecting pins being connect with adjacent closure cover board on the closure cover board, institute
It states groove to be engaged by clamping with the adjacent convex block for blocking cover board, convex block is engaged by clamping with the adjacent groove for blocking cover board.
The closure cover board is equipped with the buckle for being snapped connection with the block button hole that bus-bar is perforated.
The closure cover board is equipped with two, and two closure cover boards are symmetrical about the axis centre for blocking cover plate assembly.
The closure cover board is equipped with heat emission hole.
Description of the drawings
Fig. 1 is the structural schematic diagram of the specific embodiment of the mutual inductor of the present invention；
Fig. 2 is the structural schematic diagram of Fig. 1 median generatrix casings；
Fig. 3 is the structural schematic diagram of housing in Fig. 1；
Fig. 4 is the structural schematic diagram that cover board is blocked in Fig. 1；
Fig. 5 is the A-A direction views in Fig. 4；
Fig. 6 be Fig. 1 in mutual inductor on connection one block cover board when structural schematic diagram；
In figure：1- bus casings, 2- first block cover board, and 3- second blocks cover board, 4- convex blocks, 5- grooves, 6- buckles, 7- shieldings
Set, 8- block button holes, 9- wear round, 10- heat emission holes, the perforation of 11- bus-bars.
Specific implementation mode
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
The specific embodiment of the mutual inductor of the present invention, as shown in Figures 1 to 6, mutual inductor includes bus casing 1, bus sheath
There is the bus-bar perforation 11 passed through for bus-bar, the end of bus casing 1 is configured with the envelope for blocking bus-bar perforation 11 on pipe 1
Blanking cover plate.Closure cover board in the present embodiment is equipped with two, and respectively first, which blocks cover board 2 and second, blocks cover board 3, the first envelope
The closure cover board 3 of blanking cover plate 2 and second is surrounded wears round 9 for what bus-bar passed through.In other embodiments, blocking cover board can be arranged
Three or more, only need to ensure that each closure cover board is surrounded wears round for what bus-bar passed through.As shown in fig. 6, when the second closure
When cover board 3 damages, bus-bar need not be moved, the second closure cover board 3 need to only be removed and be replaced, need not torn open
The first closure cover board 2 is unloaded and replaced, it is inconvenient to solve the problems, such as that closure cover board in the prior art is replaced.In addition, only needing pair
The closure cover board of damage is replaced, and all closure cover boards blocked on bus casing, unspoiled envelope need not be replaced
Blanking cover plate can also continue to use, and reduce the cost for blocking cover board.
As shown in Figure 1, first in the present embodiment blocks the closure composition circular configuration of cover board 3 of cover board 2 and second.At other
In embodiment, two block cover boards also can arranged for interval, at this time two block cover boards between there are certain interval, can be used for dissipating
Heat.The first closure closure cover board 3 of cover board 2 and second in the present embodiment is symmetrical about the axis centre of bus casing 1, and such two
A structure all same for blocking cover board, in processing need to only process a kind of closure cover board can adapt to 2 He of the first closure cover board
Second blocks cover board 3, and when carrying out one of replacement for blocking cover board, and each cover board that blocks has versatility, eliminates choosing
The corresponding process for blocking cover board is taken, increases and replaces efficiency.In other embodiments, the structure of two closure cover boards also can be incomplete
It is identical, it need to only ensure that two closure cover boards are surrounded and wear round for what bus-bar passed through.For convenience of closure cover board and bus sheath
The connection of pipe 1, the first closure cover board 2 block with second and are respectively equipped with groove 5 and convex block 4 on two connecting pins that cover board 3 is connect,
Groove 5 and convex block 4 also are provided on second closure cover board, the convex block 4 that the first groove 5 and second for blocking cover board 2 blocks cover board 3 blocks
Cooperation is connect, while the first convex block 4 and second for blocking cover board 2 blocks the clamping engagement of groove 5 of cover board 3.Groove 5 and convex block 4
Setting not only facilitates the connection for blocking cover board and bus casing 1, and facilitates two connections and dismounting blocked between cover board, from
And facilitate the replacement for blocking cover board.In other the present embodiment, by bolt or it can be snapped connection between two closure cover boards；Two
A closure cover board also can be by being adhesively fixed；It can be also not connected between adjacent closure cover board, directly by each closure cover board and mother
Thread casing connects.
As shown in Figures 2 to 5, bus-bar perforation 11 is surrounded by the housing 7 of bus casing 1, the closure in the present embodiment
Cover board is connected on housing 7, and each end face block for blocking cover board and housing 7 coordinates, and ensures to block cover board and bus sheath
Leakproofness at 1 docking of pipe, prevents dust and moisture from being entered in mutual inductor by docking, ensures the degree of protection of switchgear.Screen
Cover and be uniformly provided with four block button holes 8 along circumferential direction on the side wall of 7 one end of set, two block be all provided on cover boards there are two with buckle
The buckle 6 that hole 8 snaps connection.When carrying out blocking the connection of cover board and housing 7, two closure cover boards are first passed through into groove 5
It is clamped and connects with convex block 4, then inner wall that the buckle 6 for blocking cover board is close to housing 7 is slowly placed into mutual inductor end, makes
The buckle 6 on cover board must be blocked just to snap into the block button hole 8 on housing 7, while making the end face of closure cover board and housing 7
Block coordinates, and then bus-bar is installed in round 9；Or first bus-bar is installed in round 9, then by capping
Plate is connect with housing 7.It should be noted that ensure the degree of protection of switchgear, the 7 axis side of housing in the present embodiment
To both ends be equipped with block button hole 8, and both ends are respectively connected with the closure cover board and also can only shield in other embodiments
One end connection for covering set blocks cover board.
Wearing round 9 can be designed according to the size of the bus-bar selected by user, it is ensured that bus-bar is just by wearing
Round 9, without there are too big gap, to meet the requirement to the degree of protection of switchgear.Cover board is blocked to note using ABS
Modeling forms, is lighter, and color is consistent with the color keep of bus casing, and one is seemed both after blocking cover board and blocking,
It is more beautiful.In other embodiments, cover board is blocked also to be attached on the housing peripheral components of bus casing；Block cover board
On can also be equipped with the joint face that connect with housing, the inner wall of joint face and housing is interference fitted to ensure to block cover board and shield
Cover the connection of set；It blocks cover board and resin material pouring molding can also be used.In addition, the circumference for blocking cover board is equipped with rounded corner knot
Structure.It blocks and is additionally provided with heat emission hole 10 on cover board, the heat generated when mutual inductor is worked is dissipated to the external world by heat emission hole 10, ensures
The normal work of mutual inductor.In other embodiments, heat emission hole can be not provided with by blocking on cover board；Or heat emission hole is blocked by two
Gap between cover board is constituted.
The specific embodiment of the closure cover plate assembly of the present invention, the closure cover plate assembly in the present embodiment include at least two
Cover board is blocked, the closure cover board is identical as the closure structure of cover board described in the specific embodiment of above-mentioned mutual inductor, no longer
It repeats.
Claims (10)
1. there is the bus-bar passed through for bus-bar to perforate mutual inductor, including bus casing, on the bus casing, feature
It is that configured with the closure cover board for blocking bus-bar perforation, the closure cover board is equipped at least two for the end of the bus casing,
Each closure cover board is surrounded wears round for what bus-bar passed through.
2. mutual inductor according to claim 1, characterized in that releasable connection between adjacent closure cover board.
3. mutual inductor according to claim 2, characterized in that connect with adjacent closure cover board on the closure cover board
Groove and convex block are respectively equipped on two connecting pins, the groove is engaged by clamping with the adjacent convex block for blocking cover board, convex block and phase
The groove that neighbour blocks cover board is engaged by clamping.
4. according to the mutual inductor described in any one of claim 1-3, characterized in that the closure cover board is connected to bus sheath
On the housing of pipe, and the end face block for blocking cover board and housing coordinates.
5. according to the mutual inductor described in any one of claim 1-3, characterized in that set on the hole wall of the bus-bar perforation
There is block button hole, blocks cover board and be equipped with the buckle snapped connection with block button hole.
6. according to the mutual inductor described in any one of claim 1-3, characterized in that the closure cover board is equipped with two, two
A closure cover board is symmetrical about the axis centre of bus casing.
7. according to the mutual inductor described in any one of claim 1-3, characterized in that the closure cover board is equipped with heat dissipation
Hole.
8. blocking cover plate assembly, characterized in that including at least two block cover boards, it is each block cover board and surround passed through for bus-bar
Wear round.
9. closure cover plate assembly according to claim 8, characterized in that releasable connection between adjacent closure cover board.
10. closure cover plate assembly according to claim 9, characterized in that on the closure cover board with adjacent capping
Groove and convex block are respectively equipped on two connecting pins of plate connection, the groove is engaged by clamping with the adjacent convex block for blocking cover board,
Convex block is engaged by clamping with the adjacent groove for blocking cover board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810439746.0A CN108538545A (en) | 2018-05-09 | 2018-05-09 | Mutual inductor and its closure cover plate assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810439746.0A CN108538545A (en) | 2018-05-09 | 2018-05-09 | Mutual inductor and its closure cover plate assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108538545A true CN108538545A (en) | 2018-09-14 |
Family
ID=63477191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810439746.0A Pending CN108538545A (en) | 2018-05-09 | 2018-05-09 | Mutual inductor and its closure cover plate assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108538545A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378170A (en) * | 2018-12-13 | 2019-02-22 | 上海康比利仪表有限公司 | A kind of mutual inductor installation structure |
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| CN201639253U (en) * | 2009-12-10 | 2010-11-17 | 余宾来 | Primary cable cavern plugging device for transformer substation |
| CN103227439A (en) * | 2013-04-23 | 2013-07-31 | 镇江大全伊顿电器有限公司 | Movable baffle type wall bushing of medium-voltage switch cabinet |
| CN204538603U (en) * | 2015-05-08 | 2015-08-05 | 国家电网公司 | A kind of detachable capping |
| CN105514893A (en) * | 2016-02-05 | 2016-04-20 | 国网山东省电力公司济宁供电公司 | Transformer substation cable hole blocking tool and use method thereof |
| CN206829385U (en) * | 2017-06-09 | 2018-01-02 | 中建八局第一建设有限公司 | The plugging device of pipeline hole to be provided |
| CN207097649U (en) * | 2017-07-14 | 2018-03-13 | 河南森源电气股份有限公司 | A kind of current transformer and closure cover plate |
| CN208093301U (en) * | 2018-05-09 | 2018-11-13 | 河南森源电气股份有限公司 | A kind of mutual inductor and its block cover plate assembly |
-
2018
- 2018-05-09 CN CN201810439746.0A patent/CN108538545A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201639253U (en) * | 2009-12-10 | 2010-11-17 | 余宾来 | Primary cable cavern plugging device for transformer substation |
| CN103227439A (en) * | 2013-04-23 | 2013-07-31 | 镇江大全伊顿电器有限公司 | Movable baffle type wall bushing of medium-voltage switch cabinet |
| CN204538603U (en) * | 2015-05-08 | 2015-08-05 | 国家电网公司 | A kind of detachable capping |
| CN105514893A (en) * | 2016-02-05 | 2016-04-20 | 国网山东省电力公司济宁供电公司 | Transformer substation cable hole blocking tool and use method thereof |
| CN206829385U (en) * | 2017-06-09 | 2018-01-02 | 中建八局第一建设有限公司 | The plugging device of pipeline hole to be provided |
| CN207097649U (en) * | 2017-07-14 | 2018-03-13 | 河南森源电气股份有限公司 | A kind of current transformer and closure cover plate |
| CN208093301U (en) * | 2018-05-09 | 2018-11-13 | 河南森源电气股份有限公司 | A kind of mutual inductor and its block cover plate assembly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378170A (en) * | 2018-12-13 | 2019-02-22 | 上海康比利仪表有限公司 | A kind of mutual inductor installation structure |
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