CN203415353U - Isolation transformer - Google Patents
Isolation transformer Download PDFInfo
- Publication number
- CN203415353U CN203415353U CN201320323743.3U CN201320323743U CN203415353U CN 203415353 U CN203415353 U CN 203415353U CN 201320323743 U CN201320323743 U CN 201320323743U CN 203415353 U CN203415353 U CN 203415353U
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- CN
- China
- Prior art keywords
- transformer
- metal shell
- utility
- model
- phase transformer
- 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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Abstract
The utility model relates to an isolation transformer which comprises a metal shell and a three-phase transformer housed in the metal shell, wherein the metal shell is provided with pins and sealing terminals for fixing the pins which are extended towards two sides. The isolation transformer provided by the utility model is high in isolation level; the iron loss and copper loss caused by temperature rise of the transformer are effectively relieved; the manufacturing is convenient; the running reliability of the transformer is increased; the use is safe.
Description
Technical field
The utility model relates to a kind of isolating transformer.
Background technology
The Main Function of isolating transformer is: make the electric insulation completely of primary side and secondary side, also make this loop isolation.In addition, utilize the large feature of high-frequency loss of its iron core, thereby suppress high frequency clutter, import control loop into.With isolating transformer, secondary is suspended over the ground, can only be used in the occasion that supply district is less, circuit is shorter.Now, the capacitive earth current of system is so little that to be not enough to the person to damage.Also having a very important effect is exactly to protect personal safety, because isolating transformer loss is large, therefore its class of insulation is had relatively high expectations, and traditional insulating material result of use is not ideal enough.
Utility model content
The technical problems to be solved in the utility model is: for overcoming the problem of above-mentioned existence, provide a kind of good insulating, the isolating transformer that efficiency is high.
The utility model solves the technical scheme that its technical problem adopts: a kind of isolating transformer, comprise metal shell and be housed in the three-phase transformer in metal shell, described metal shell to both sides be extended with draw pin and fixing described in draw the hermetic terminal of pin, described three-phase transformer outside is coated with polyester film, insulation property are high, and resistance to pressure is good.
Between described metal shell and three-phase transformer, extract out and have elementary lead-in wire, described elementary lead-in wire overcoat has silica gel glass fibre sleeve.
Described three-phase transformer lower end is welded with metal cover board.
The beneficial effects of the utility model are, the isolating transformer class of insulation of the present utility model is high, have effectively slowed down iron loss and copper loss that the temperature rise due to transformer causes, easily manufactured, have improved the operational reliability of transformer, use safety.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
1. metal shells in figure, 2. three-phase transformer, 3. hermetic terminal, 4. elementary lead-in wire, 5. metal cover board.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model is only described in a schematic way, so it only show the formation relevant with the utility model.
Isolating transformer as shown in Figure 1, comprise metal shell 1 and be housed in the three-phase transformer 2 in metal shell 1, metal shell 1 to both sides be extended with draw pin and fixing described in draw the hermetic terminal 3 of pin, three-phase transformer 2 outsides are coated with polyester film, improved insulating properties, resistance to pressure is good.Between metal shell 1 and three-phase transformer 2, extract out and have elementary lead-in wire 4, elementary lead-in wire 4 overcoats have silica gel glass fibre sleeve.Three-phase transformer 2 lower ends are welded with metal cover board 5.
The above-mentioned foundation desirable embodiment of the present utility model of take is enlightenment, and by above-mentioned description, relevant staff can, within not departing from the scope of this utility model technological thought, carry out various change and modification completely.The technical scope of this utility model is not limited to the content on specification, must determine its technical scope according to claim scope.
Claims (3)
1. an isolating transformer, it is characterized in that: comprise metal shell (1) and be housed in the three-phase transformer (2) in metal shell (1), described metal shell (1) to both sides be extended with draw pin and fixing described in draw the hermetic terminal (3) of pin, described three-phase transformer (2) outside is coated with polyester film.
2. isolating transformer according to claim 1, is characterized in that: between described metal shell (1) and three-phase transformer (2), extract out and have elementary lead-in wire (4), described elementary lead-in wire (4) overcoat has silica gel glass fibre sleeve.
3. isolating transformer according to claim 1, is characterized in that: described three-phase transformer (2) lower end is welded with metal cover board (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320323743.3U CN203415353U (en) | 2013-06-04 | 2013-06-04 | Isolation transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320323743.3U CN203415353U (en) | 2013-06-04 | 2013-06-04 | Isolation transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203415353U true CN203415353U (en) | 2014-01-29 |
Family
ID=49978227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320323743.3U Expired - Fee Related CN203415353U (en) | 2013-06-04 | 2013-06-04 | Isolation transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203415353U (en) |
-
2013
- 2013-06-04 CN CN201320323743.3U patent/CN203415353U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20140604 |