CN206353471U - A kind of transformer and its short-circuit detecting device with good heat radiating function - Google Patents
A kind of transformer and its short-circuit detecting device with good heat radiating function Download PDFInfo
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- CN206353471U CN206353471U CN201720027085.1U CN201720027085U CN206353471U CN 206353471 U CN206353471 U CN 206353471U CN 201720027085 U CN201720027085 U CN 201720027085U CN 206353471 U CN206353471 U CN 206353471U
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- transformer
- resistance
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- transformer body
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- 239000012528 membrane Substances 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims description 32
- 239000003990 capacitor Substances 0.000 claims description 13
- 230000009466 transformation Effects 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000005611 electricity Effects 0.000 description 7
- 230000000630 rising effect Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model discloses a kind of transformer and its short-circuit detecting device with good heat radiating function, including transformer body, weather shield is provided with above the transformer body, the weather shield is set from edge to center to lower recess, the center of the weather shield opens up a through hole, connection one is responsible for below the through hole, the supervisor runs through transformer body from top to bottom, some branch pipes are provided with the transformer body, the circumferentially-spaced arrangement centered on being responsible for of some branch pipes, branch pipe one end is stretched into the other end in transformer body and stretched out outside transformer body, the supervisor and transformer body, branch pipe is tightly connected with transformer body, waterproof ventilated membrane is provided with the branch pipe, thermal diffusivity is good, add short-circuit detecting device simultaneously, substantially increase the quality and service life of transformer.
Description
Technical field
The utility model is related to a kind of transformer, and in particular to a kind of transformer and its short circuit with good heat radiating function
Detection means.
Background technology
Transformer is the device for changing alternating voltage using the principle of electromagnetic induction, and main member is primary coil, secondary
Level coil and iron core.Major function has：Voltage transformation, current transformation, impedance conversion, isolation, voltage stabilizing etc..
Transformer in use, because client's maloperation or load faulty are likely to result in output terminal shortcircuit or overload,
Output short-circuit or overload fault will cause transformer to burn or even threaten load and the safety of user.Conventional short-circuit, overload are protected
Protection circuit is made up of common high-voltage direct current sampling resistor, short-circuit signal comparator, overload signal comparator, and structure is multiple
It is miscellaneous, and due to the high-voltage dc signal sampling exported from rectification module, protection can not be played sometimes after the generation of output end failure
Effect, reliability is not high.
Utility model content
Utility model purpose：The purpose of this utility model is that there is provided a kind of structure in order to solve deficiency of the prior art
Simply, with good heat radiating function, while adding short-circuit detecting circuit, the quality of product and the transformer of service life are improved
And its short-circuit detecting device.
Technical scheme：A kind of transformer and its short-circuit detecting dress with good heat radiating function described in the utility model
Put, including transformer body, be provided with weather shield above the transformer body, the weather shield is from edge to center to recessed
Fall into and set, the center of the weather shield opens up connection one below a through hole, the through hole and is responsible for, and the supervisor is run through from top to bottom
Some branch pipes, the circumferentially-spaced arrangement centered on being responsible for of some branch pipes, branch are provided with transformer body, the transformer body
Pipe one end is stretched into the other end in transformer body and stretched out outside transformer body, the supervisor and transformer body, branch pipe and transformation
Device body is tightly connected, and waterproof ventilated membrane is provided with the branch pipe；The transformer body is also associated with short-circuit detecting dress
Put, the short-circuit detecting device includes：
Acquisition Circuit, gathers the collection signal of transformer output end；
Circuit is detected, the collection signal is converted into detection signal output, including resistance R1, resistance R2, resistance R3, electricity
R4, diode D1, charging capacitor C1 are hindered, the resistance R1 and diode D1 connect to constitute short-circuit detecting branch road, the electricity
Hinder after R2, resistance R3 series connection, the charging capacitor C1 is connected between the resistance R2, resistance R3 intersection point and ground with structure
Into overload detection branch road, the short-circuit detecting branch road is followed by Acquisition Circuit output end and inspection with the overload detection branch circuit parallel connection
Between slowdown monitoring circuit output end, the resistance R4 is connected between detection circuit output end and ground；
Comparison circuit, including comparator A1, the detection circuit output terminate the in-phase input end of the comparator A1,
With relatively more described detection signal and predeterminated voltage, so as to export fault-signal in transformer short-circuit or overload.
Further, the transformer body bottom is provided with base, the transformer body be fixed on base and with
Base is arranged at intervals, and roller is provided with the base.
Further, it is provided with cylinder, the piston rod of the cylinder and is fixed with for abutting ground on the base
Friction plate.
Further, the transformer body side is provided with fin, and the fin includes connecting with transformer body
The first connection sheet connect and the second connection sheet for vertically connecting and upwardly extending with the first connection sheet, first connection sheet and
Cavity is respectively provided with inside second connection sheet and is interconnected, water is filled with the cavity of first connection sheet.
Further, the comparison circuit also includes resistance R5, resistance R6, and the detection circuit output terminates the comparison
Device A1 in-phase input end, the inverting input of the comparator A1 is grounded by resistance R6, and the comparator A1's is defeated
Go out inverting input of the end by resistance R5 negative-feedbacks to the comparator A1.
Further, the Acquisition Circuit includes resistance R7, resistance R8, the electricity being parallel between transformer output end and ground
Hinder R9.
Further, in addition to filter capacitor C2, the filter capacitor C2 are serially connected with the detection circuit output end and ground
Between.
Beneficial effect：The utility model is simple and reasonable, simple in construction, and gas permeability and thermal diffusivity are good, add simultaneously
Short-circuit detecting device, substantially increases the service life of transformer.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model transformer；
Fig. 2 is Fig. 1 upward view；
Fig. 3 is short-circuit detecting circuit structure chart of the present utility model.
Embodiment
Refer in Fig. 1 and Fig. 2, the utility model embodiment, a kind of transformer with good heat radiating function and its short
Road detection means, including transformer body 4, the top of the transformer body 4 are provided with weather shield 9, and the weather shield 9 is from edge
Set to center to lower recess, the center of the weather shield 9 opens up the supervisor of connection one 101 below a through hole, the through hole, described
Supervisor 101 is run through on transformer body 4, the transformer body 4 from top to bottom is provided with some branch pipes 102, some branch pipes 102
The circumferentially-spaced arrangement centered on being responsible for 101, one end of branch pipe 102 stretches into the other end in transformer body 4 and stretches out transformer body 4
Outside, the supervisor 101 is tightly connected with transformer body 4, branch pipe 102 and transformer body 4, is set in the branch pipe 102
There is waterproof ventilated membrane；The transformer body 4 is also associated with short-circuit detecting device.
The bottom of transformer body 4 is provided with base 1, the transformer body 4 be fixed on base 1 and with base 1
It is arranged at intervals, roller 11 is provided with the base 1.
The friction plate being fixed with cylinder 2, the piston rod of the cylinder 2 for abutting ground is provided with the base 1
21。
The side of transformer body 4 is provided with fin 5, the fin 5 include being connected with transformer body 4 the
A connecting piece 51 and the second connection sheet 52 for vertically connecting and upwardly extending with the first connection sheet 51, first connection sheet 51
With cavity is respectively provided with inside the second connection sheet 52 and is interconnected, water is filled with the cavity of first connection sheet 51.
As shown in figure 3, transformer short-circuit detection circuit 20 includes Acquisition Circuit 211, detection circuit 22 and comparison circuit
23, the Acquisition Circuit 211 gathers the collection signal of automobile transformer output end；Detect that circuit 22 turns the collection signal
It is changed to detection signal output, including resistance R1, resistance R2, resistance R3, resistance R4, diode D1, charging capacitor C1, the resistance
R1 and diode D1 series connection is to constitute short-circuit detecting branch road 221, after the resistance R2, resistance R3 series connection, by the charging electricity
Hold C1 to be connected between the resistance R2, resistance R3 intersection point and ground to constitute overload detection branch road 222, the short-circuit detecting branch
Road 221 is in parallel with the overload detection branch road 222 be followed by the output end of Acquisition Circuit 211 and detection circuit 22 output end it
Between, the resistance R4 is connected between the detection output end of circuit 22 and ground；The comparison circuit 23 includes comparator A1, described
The output termination of circuit 22 comparator A1 in-phase input end is detected, signal and predeterminated voltage are detected with relatively more described, from
And fault-signal S2 is exported in transformer short-circuit or overload.
The comparison circuit 23 also includes resistance R5, resistance R6, and the detection circuit output terminates the comparator A1
In-phase input end, the inverting input of the comparator A1 is grounded by resistance R6, and the output end of the comparator A1 is led to
Resistance R5 negative-feedbacks are crossed to the inverting input of the comparator A1.
The Acquisition Circuit 211 includes resistance R7, resistance R8, the resistance being parallel between transformer output end M1 and ground
R9.The Acquisition Circuit 211 is connected with the earth terminal of switching tube in the inverter circuit 14.
The transformer short-circuit overload detection circuit 20 is also serially connected with institute including filter capacitor C2, the filter capacitor C2
State between the detection output end of circuit 22 and ground.
When transformer short-circuit, transformer output end power increases rapidly, the collection signal that Acquisition Circuit 211 is collected its
Voltage is quickly raised to the cut-in voltage value more than diode D1, and diode D1 conductings, the short-circuit detecting branch road 221 is defeated
Go out corresponding detection signal to comparator A1 in-phase input end, comparator A1 homophase input terminal voltage is more than anti-phase input
End, comparator A1 output ends are changed into high level from low level, i.e. comparator A1 exports the fault-signal of rising edge, protection electricity
Road is stopped according to fault-signal control transformer.
When transformer overload, collection signal its voltage rise that Acquisition Circuit 211 is collected is filled to charging capacitor C1
Electricity, charging capacitor C1 voltage is gradually risen to comparator A1 triggering threshold values, i.e., described overload detection branch road 222 is exported
Corresponding detection signal is to comparator A1 in-phase input end, and comparator A1 homophase input terminal voltage is more than anti-phase input
End, comparator A1 output ends are changed into high level from low level, i.e. comparator A1 exports the fault-signal of rising edge, protection electricity
Road is stopped according to fault-signal control transformer.
Schematically the utility model and embodiments thereof are described above, the description does not have restricted, accompanying drawing
Shown in be also one of embodiment of the present utility model, actual structure is not limited thereto.So, if this area
Those of ordinary skill enlightened by it, do not departing from the case that the utility model creates objective, designed without creative
The frame mode similar to the technical scheme and embodiment, all should belong to protection domain of the present utility model.
Claims (7)
1. a kind of transformer and its short-circuit detecting device with good heat radiating function, it is characterised in that：Including transformer body
(4) weather shield (9), is provided with above the transformer body (4), the weather shield (9) sets from edge to center to lower recess
Put, the center of the weather shield (9) opens up the supervisor of connection one (101) below a through hole, the through hole, and the supervisor (101) is certainly
It is above lower to be provided with some branch pipes (102), some branch pipes (102) on transformer body (4), the transformer body (4)
The circumferentially-spaced arrangement centered on being responsible for (101), branch pipe (102) one end stretches into the interior other end of transformer body (4) and stretches out transformation
Outside, the supervisor (101) is tightly connected device body (4) with transformer body (4), branch pipe (102) and transformer body (4),
Waterproof ventilated membrane is provided with the branch pipe (102)；The transformer body (4) is also associated with short-circuit detecting device, described short
Road detection means includes：
Acquisition Circuit, gathers the collection signal of transformer output end；
Circuit is detected, the collection signal is converted into detection signal output, including resistance R1, resistance R2, resistance R3, resistance
R4, diode D1, charging capacitor C1, the resistance R1 and diode D1 connect to constitute short-circuit detecting branch road, the resistance
After R2, resistance R3 series connection, the charging capacitor C1 is connected between the resistance R2, resistance R3 intersection point and ground to constitute
Overload detection branch road, the short-circuit detecting branch road is followed by Acquisition Circuit output end and detection with the overload detection branch circuit parallel connection
Between circuit output end, the resistance R4 is connected between detection circuit output end and ground；
Comparison circuit, including comparator A1, the detection circuit output terminate the in-phase input end of the comparator A1, with than
The detection signal and predeterminated voltage, so as to export fault-signal in transformer short-circuit or overload.
2. a kind of transformer and its short-circuit detecting device with good heat radiating function according to claim 1, its feature
It is：Transformer body (4) bottom is provided with base (1), the transformer body (4) be fixed on base (1) and with
Base (1) is arranged at intervals, and roller (11) is provided with the base (1).
3. a kind of transformer and its short-circuit detecting device with good heat radiating function according to claim 2, its feature
It is：It is provided with cylinder (2), the piston rod of the cylinder (2) and is fixed with for abutting rubbing for ground on the base (1)
Pad (21).
4. a kind of transformer and its short-circuit detecting device with good heat radiating function according to claim 1, its feature
It is：The transformer body (4) is provided with fin (5) sideways, and the fin (5) is included with transformer body (4) even
The first connection sheet (51) connect and the second connection sheet (52) for vertically connecting and upwardly extending with the first connection sheet (51), institute
State and cavity is respectively provided with inside the first connection sheet (51) and the second connection sheet (52) and is interconnected, first connection sheet (51)
Cavity in be filled with water.
5. a kind of transformer and its short-circuit detecting device with good heat radiating function according to claim 1, its feature
It is：The comparison circuit also includes resistance R5, resistance R6, and the detection circuit output terminates the same phase of the comparator A1
Input, the inverting input of the comparator A1 is grounded by resistance R6, and the output end of the comparator A1 passes through resistance
R5 negative-feedbacks to the comparator A1 inverting input.
6. a kind of transformer and its short-circuit detecting device with good heat radiating function according to claim 1, its feature
It is：The Acquisition Circuit includes resistance R7, resistance R8, the resistance R9 being parallel between transformer output end and ground.
7. a kind of transformer and its short-circuit detecting device with good heat radiating function according to claim 1, its feature
It is：Also include filter capacitor C2, the filter capacitor C2 and be serially connected with described detect between circuit output end and ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720027085.1U CN206353471U (en) | 2017-01-11 | 2017-01-11 | A kind of transformer and its short-circuit detecting device with good heat radiating function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720027085.1U CN206353471U (en) | 2017-01-11 | 2017-01-11 | A kind of transformer and its short-circuit detecting device with good heat radiating function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206353471U true CN206353471U (en) | 2017-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720027085.1U Expired - Fee Related CN206353471U (en) | 2017-01-11 | 2017-01-11 | A kind of transformer and its short-circuit detecting device with good heat radiating function |
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| Country | Link |
|---|---|
| CN (1) | CN206353471U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783021A (en) * | 2017-01-11 | 2017-05-31 | 姹や寒 | A kind of transformer and its short-circuit detecting device with good heat radiating function |
-
2017
- 2017-01-11 CN CN201720027085.1U patent/CN206353471U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783021A (en) * | 2017-01-11 | 2017-05-31 | 姹や寒 | A kind of transformer and its short-circuit detecting device with good heat radiating function |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170725 |