CN105405618A - Cushion block for marine medium voltage transformer - Google Patents
Cushion block for marine medium voltage transformer Download PDFInfo
- Publication number
- CN105405618A CN105405618A CN201511003840.4A CN201511003840A CN105405618A CN 105405618 A CN105405618 A CN 105405618A CN 201511003840 A CN201511003840 A CN 201511003840A CN 105405618 A CN105405618 A CN 105405618A
- Authority
- CN
- China
- Prior art keywords
- cushion block
- voltage transformer
- coil
- boss
- marine medium
- 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
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Classifications
-
- 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
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
The invention discloses a cushion block for a marine medium voltage transformer. The cushion block comprises an cushion block body integrally formed by an insulating material, a groove is formed in a top end of the body, a clamping part is arranged at a bottom end of the body, a boss is arranged at a side end of the body, a bottom surface of the boss is higher than the bottom surface of the body, a cross section of the clamping part is arc-shaped, and an arc-shaped notch is formed in the middle. The cushion block disclosed by the invention has the advantages of being simple in structure and easy to realize, increasing the contact area of a coil, guaranteeing uniform stress of the coil under such special conditions as sudden short circuit and the like and reducing the deformation to the minimum, and moreover, the notch is formed in a position corresponding to the high voltage coil to evade an airway, so that the heat dissipation effect is greatly improved.
Description
Technical field
The present invention relates to a kind of transformer auxiliary member, specifically a kind of transformer cushion block.
Background technology
In transformer, cushion block is generally for supporting and coil pressing.At present, the use of middle pressure marine transformer gets more and more, and its requirement for anti-sudden short circuit is very high.In existing cushion block scheme, between the arcwall face of coil and straight notch, there is gap, in sudden short circuit test, provide deformation space to the distortion of coil, cause low-voltage coil to cave inward, thus burst accident occurs.
Summary of the invention
Goal of the invention: for the problems referred to above, the object of this invention is to provide a kind of structure simple, can resist the transformer cushion block of sudden short circuit.
Technical scheme: a kind of marine medium-voltage transformer cushion block, comprise by the integrated cushion block main body of insulating material, the top of described main body is provided with groove, its bottom is provided with Access Division, its side is provided with boss, the bottom surface of described boss is higher than the bottom surface of described main body, and described Access Division cross section is curved, forms arc-shaped slot in the middle of it.
Further, the degree of depth of notch is H, and the height of Access Division is h, H=2h.
Further, cushion block main body selects epoxide resin material to make, and hardness is high, and pliability is good.
Beneficial effect: compared with prior art, advantage of the present invention be structure simple, be easy to realize, increase the contact-making surface of coil, ensureing can uniform force in special circumstances lower coil such as sudden short circuits, deformation is dropped to minimum, and notch is in position corresponding to high-tension coil, air flue is abdicated, and radiating effect improves greatly.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is front view of the present invention;
Fig. 3 is the upward view of Fig. 2;
Fig. 4 is the vertical view of Fig. 2.
Embodiment
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims limited range.
As Figure 1-4, a kind of marine medium-voltage transformer cushion block, comprises by the integrated cushion block main body 1 of epoxy resin, is provided with middle rectangular on the top of cushion block main body 1, two ends are the groove 2 of arc, its lower end is provided with between Access Division 3,3, two, the curved Access Division of cross-sectional area and has arc-shaped slot 5, for locating the coil on transformer, for reaching best effects, the degree of depth of notch is H, and the height of Access Division is h, H=2h.The design of arc-shaped slot 5, provides larger contact area to coil, makes it under the short-circuit conditions of burst, can its deformation be made to greatest extent to drop to minimum, improve its Short Circuit withstand performance, and notch 5 designs in position corresponding to high-tension coil, air flue is abdicated, and radiating effect improves greatly.
In addition, the side of cushion block body 1 is provided with boss 4, and the bottom surface of boss 4 is higher than the bottom surface of cushion block body 1, and it is more accurate not only to locate, and adds coil creepage distance over the ground, further increases anti-short circuit capability.
Claims (3)
1. a marine medium-voltage transformer cushion block, comprise with the integrated cushion block main body (1) of insulating material, the top of described main body (1) is provided with groove (2), its bottom is provided with Access Division (3), its side is provided with boss (4), the bottom surface of described boss (4) is higher than the bottom surface of described main body (1), it is characterized in that: described Access Division (3) cross section is curved, in the middle of it, form arc-shaped slot (5).
2. a kind of marine medium-voltage transformer cushion block according to claim 1, is characterized in that: the depth H of described notch (5) is the twice of described Access Division (3) height h.
3. a kind of marine medium-voltage transformer cushion block according to claim 1, is characterized in that: described main body (1) adopts epoxide resin material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511003840.4A CN105405618A (en) | 2015-12-30 | 2015-12-30 | Cushion block for marine medium voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511003840.4A CN105405618A (en) | 2015-12-30 | 2015-12-30 | Cushion block for marine medium voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105405618A true CN105405618A (en) | 2016-03-16 |
Family
ID=55471041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511003840.4A Pending CN105405618A (en) | 2015-12-30 | 2015-12-30 | Cushion block for marine medium voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105405618A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2884458Y (en) * | 2005-12-19 | 2007-03-28 | 中电电气集团有限公司 | Coil location and pressing device for dry-type transformer poured by epoxy resin |
| CN201036138Y (en) * | 2007-04-30 | 2008-03-12 | 盐城市中联电气制造有限公司 | Ceramic pressing block of flame-proof transformer |
| CN201673792U (en) * | 2010-05-18 | 2010-12-15 | 益阳华翔变压器制造有限公司 | Positioning and compressing device for coil of dry-type transformer |
| CN202034205U (en) * | 2011-05-05 | 2011-11-09 | 保定天威集团有限公司 | Cushion block for dry-type transformer body |
| CN202093958U (en) * | 2011-06-09 | 2011-12-28 | 苏州星州变压器有限公司 | Cushion block structure for epoxy resin casting dry type transformer |
| CN203325667U (en) * | 2013-05-30 | 2013-12-04 | 常州力能输变电材料科技有限公司 | Cushion block for transformers |
| CN104078201A (en) * | 2014-07-04 | 2014-10-01 | 镇江船舶电器有限责任公司 | Small-volume transformer cushion block for ship |
-
2015
- 2015-12-30 CN CN201511003840.4A patent/CN105405618A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2884458Y (en) * | 2005-12-19 | 2007-03-28 | 中电电气集团有限公司 | Coil location and pressing device for dry-type transformer poured by epoxy resin |
| CN201036138Y (en) * | 2007-04-30 | 2008-03-12 | 盐城市中联电气制造有限公司 | Ceramic pressing block of flame-proof transformer |
| CN201673792U (en) * | 2010-05-18 | 2010-12-15 | 益阳华翔变压器制造有限公司 | Positioning and compressing device for coil of dry-type transformer |
| CN202034205U (en) * | 2011-05-05 | 2011-11-09 | 保定天威集团有限公司 | Cushion block for dry-type transformer body |
| CN202093958U (en) * | 2011-06-09 | 2011-12-28 | 苏州星州变压器有限公司 | Cushion block structure for epoxy resin casting dry type transformer |
| CN203325667U (en) * | 2013-05-30 | 2013-12-04 | 常州力能输变电材料科技有限公司 | Cushion block for transformers |
| CN104078201A (en) * | 2014-07-04 | 2014-10-01 | 镇江船舶电器有限责任公司 | Small-volume transformer cushion block for ship |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160316 |
|
| WD01 | Invention patent application deemed withdrawn after publication |