CN213339995U - Lightning-protection and fireproof dry-type transformer - Google Patents
Lightning-protection and fireproof dry-type transformer Download PDFInfo
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- CN213339995U CN213339995U CN202022371235.5U CN202022371235U CN213339995U CN 213339995 U CN213339995 U CN 213339995U CN 202022371235 U CN202022371235 U CN 202022371235U CN 213339995 U CN213339995 U CN 213339995U
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Abstract
The utility model relates to the technical field of transformers, in particular to a lightning protection and fire prevention dry-type transformer, which comprises a shell, an installation cavity arranged in the shell, a front installation seat, a rear installation seat, a coil position and a semiconductor refrigeration piece arranged in the installation cavity, wherein a winding coil, a lightning protection surge protector and a temperature induction sensor are arranged in the coil position, a lightning rod is arranged at the top of the shell, and the bottom of the lightning rod is connected with a grounding wire; the temperature inside the transformer is monitored by a temperature induction sensor at any time, and when the temperature inside the transformer is overhigh, the temperature inside the transformer is automatically cooled by a semiconductor refrigeration piece; the lightning protection surge protector effectively prevents the outside of the transformer from being struck by lightning through an external lightning rod and a grounding wire, and effectively prevents a plurality of winding coils from being damaged due to overlarge instantaneous current and voltage; the utility model discloses can effectively prevent the transformer and catch fire, lightning protection effect is good, uses safe and reliable.
Description
Technical Field
The utility model relates to a transformer technical field specifically is a dry-type transformer of lightning protection fire prevention.
Background
The transformer is a device for changing alternating voltage by using the principle of electromagnetic induction, and main components are a primary coil, a secondary coil and an iron core (magnetic core); the main functions are as follows: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer), and the like. According to the application, the method can be divided into: power transformers and special transformers (furnace transformers, rectification transformers, power frequency test transformers, voltage regulators, mining transformers, audio transformers, intermediate frequency transformers, high frequency transformers, impact transformers, instrument transformers, electronic transformers, reactors, mutual inductors, etc.).
The conventional dry-type transformer generates high temperature when the internal short circuit or long-time high-load operation is carried out, the high temperature can cause the internal fire of the transformer, and great potential safety hazard exists; in addition, current dry-type transformer mostly does not set up the lightning protection measure, even set up the lightning protection measure on the transformer, its lightning protection device's performance is generally all relatively poor, and the lightning protection device is weak, and when the thunder wave was invaded, often because electric current in the twinkling of an eye, voltage are too big between a plurality of winding coils in the transformer, often can suffer the damage, cause the power failure accident even, or cause the conflagration because of the thunder and lightning.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to foretell not enough, provide one kind can prevent effectively that the transformer from firing, and lightning protection is effectual, uses the dry-type transformer of safe and reliable's lightning protection fire prevention.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a dry-type transformer with lightning protection and fire prevention comprises a shell, an installation cavity arranged in the shell, a front installation seat and a rear installation seat which are arranged in the installation cavity in a right-to-right manner, a plurality of coil positions are arranged between the front mounting seat and the rear mounting seat, a semiconductor refrigeration piece for separating the coil positions is arranged between the adjacent coil positions, a winding coil, a lightning protection surge protector and a temperature induction sensor are arranged in the coil position, a lightning rod is arranged at the top of the shell, the bottom of the lightning rod is connected with a grounding wire, the output end of the temperature sensing sensor is electrically connected with the input end of the semiconductor refrigeration piece, the input end electric connection of winding coil preceding mount pad, the output electric connection of winding coil the input of lightning protection surge protector, the output electric connection of lightning protection surge protector the back mount pad.
Further, an input power line is arranged at the input end of the front mounting seat, and a front filter is arranged on the input power line; the output end of the rear mounting seat is provided with an output power line, and a rear filter is arranged on the output power line.
Furthermore, the number of the coil positions is at least two, and the winding coil, the lightning and surge protector and the temperature induction sensor correspond to the coil positions one to one.
Furthermore, a heat absorption grid is arranged on the inner side wall of the cavity of the installation cavity.
Further, the top and the bottom of the shell are respectively provided with a cooling fin.
The utility model has the advantages that:
in practical application, the temperature inside the transformer is monitored by the temperature sensing sensor at any time, and when the temperature inside the transformer is overhigh, the temperature inside the transformer is automatically cooled by the semiconductor refrigerating sheet; the lightning protection surge protector effectively prevents the outside of the transformer from being struck by lightning through an external lightning rod and a grounding wire, and effectively prevents a plurality of winding coils from being damaged due to overlarge instantaneous current and voltage; the utility model discloses can effectively prevent the transformer and catch fire, lightning protection effect is good, uses safe and reliable.
Drawings
Fig. 1 is a schematic sectional structure of the present invention;
reference numerals: a housing 1; a heat sink 11; a front mounting base 2; a rear mounting base 3; a coil position 4; a semiconductor refrigeration sheet 5; a winding coil 6; a lightning and surge protection device 7; a temperature-sensitive sensor 8; a lightning rod 9; a ground line 91; a pre-filter 101; a post filter 102.
Detailed Description
As shown in fig. 1, a lightning-protection fireproof dry-type transformer includes a housing 1, an installation cavity disposed in the housing 1, a front installation seat 2 and a rear installation seat 3 disposed in the installation cavity, a plurality of coil positions 4 disposed between the front installation seat 2 and the rear installation seat 3, a semiconductor refrigeration sheet 5 disposed between adjacent coil positions 4 for separating the coil positions 4, a winding coil 6, a lightning-protection surge protector 7 and a temperature sensing sensor 8 disposed in the coil positions 4, a lightning rod 9 disposed at the top of the housing 1, a ground wire 91 connected to the bottom of the lightning rod 9, an output end of the temperature sensing sensor 8 electrically connected to an input end of the semiconductor refrigeration sheet 5, an input end of the winding coil 6 electrically connected to the front installation seat 2, and an output end of the winding coil 6 electrically connected to an input end of the lightning-protection surge protector 7, the output end of the lightning protection surge protector 7 is electrically connected with the rear mounting seat 3.
When the temperature control device works, the temperature inside the transformer is monitored at any time through the temperature induction sensor 8, and when the temperature inside the transformer is overhigh, the temperature inside the transformer is automatically cooled through the semiconductor refrigerating sheet 5; the external lightning rod 9 and the grounding wire 91 effectively prevent the external part of the transformer from being struck by lightning, and the lightning protection surge protector 7 effectively prevents the plurality of winding coils 6 from being damaged due to overlarge instantaneous current and voltage; the utility model discloses can effectively prevent the transformer and catch fire, lightning protection effect is good, uses safe and reliable.
As shown in fig. 1, an input power line is arranged at an input end of the front mounting base 2, and a pre-filter 101 is arranged on the input power line; an output power line is arranged at the output end of the rear mounting seat 3, and a rear filter 102 is arranged on the output power line; in this embodiment, the pre-filter 101 suppresses the occurrence of transient interference at the time of power input, which causes the winding coil 6 to be short-circuited and ignited, and the post-filter 102 keeps the range of the output voltage constant, and suppresses the pulse interference generated by the digital signal, thereby being safe and reliable to use.
As shown in fig. 1, there are at least two coil positions 4, and the winding coil 6, the lightning protection surge protector 7 and the temperature sensing sensor 8 correspond to the coil positions 4 one to one; in this embodiment, the winding coil 6, the lightning protection surge protector 7 and the temperature sensing sensor 8 are arranged through at least two coil positions 4, so that the transformer has stronger practicability.
As shown in fig. 1, a heat absorption grid is arranged on the inner side wall of the cavity of the installation cavity; in this embodiment, the temperature inside the transformer is absorbed by the heat absorption grill, and the heat is conducted out through the case 1.
As shown in fig. 1, the top and bottom of the housing 1 are respectively provided with heat radiating fins 11; in this embodiment, the heat dissipation area outside the housing 1 is increased by the heat dissipation fins 11, so that the heat dissipation effect of the housing 1 is better, and the use is safer and more reliable.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein will be apparent to those skilled in the art without departing from the scope and spirit of the invention as defined in the accompanying claims.
Claims (5)
1. The utility model provides a dry-type transformer of lightning protection fire prevention which characterized in that: comprises a shell (1), an installation cavity arranged in the shell (1), a front installation seat (2) and a rear installation seat (3) which are arranged in the installation cavity, a plurality of coil positions (4) are arranged between the front installation seat (2) and the rear installation seat (3), a semiconductor refrigerating sheet (5) used for separating the coil positions (4) is arranged between the adjacent coil positions (4), a winding coil (6), a lightning protection surge protector (7) and a temperature induction sensor (8) are arranged in the coil positions (4), a lightning rod (9) is arranged at the top of the shell (1), a grounding wire (91) is connected at the bottom of the lightning rod (9), the output end of the temperature induction sensor (8) is electrically connected with the input end of the semiconductor refrigerating sheet (5), the input end of the winding coil (6) is electrically connected with the front installation seat (2), the output end of the winding coil (6) is electrically connected with the input end of the lightning protection surge protector (7), and the output end of the lightning protection surge protector (7) is electrically connected with the rear mounting seat (3).
2. A lightning and fire protection dry transformer according to claim 1, characterised in that: an input power line is arranged at the input end of the front mounting seat (2), and a front filter (101) is arranged on the input power line; an output power line is arranged at the output end of the rear mounting seat (3), and a rear filter (102) is arranged on the output power line.
3. A lightning and fire protection dry transformer according to claim 1, characterised in that: the number of the coil positions (4) is at least two, and the winding coil (6), the lightning protection surge protector (7) and the temperature induction sensors (8) correspond to the coil positions (4) one by one.
4. A lightning and fire protection dry transformer according to claim 1, characterised in that: and a heat absorption grid is arranged on the inner side wall of the cavity of the mounting cavity.
5. A lightning and fire protection dry transformer according to claim 1, characterised in that: the top and the bottom of the shell (1) are respectively provided with a radiating fin (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022371235.5U CN213339995U (en) | 2020-10-22 | 2020-10-22 | Lightning-protection and fireproof dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022371235.5U CN213339995U (en) | 2020-10-22 | 2020-10-22 | Lightning-protection and fireproof dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213339995U true CN213339995U (en) | 2021-06-01 |
Family
ID=76074187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022371235.5U Expired - Fee Related CN213339995U (en) | 2020-10-22 | 2020-10-22 | Lightning-protection and fireproof dry-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213339995U (en) |
-
2020
- 2020-10-22 CN CN202022371235.5U patent/CN213339995U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210601 Termination date: 20211022 |
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| CF01 | Termination of patent right due to non-payment of annual fee |