CN201590311U - Transformer device capable of detecting output state - Google Patents
Transformer device capable of detecting output state Download PDFInfo
- Publication number
- CN201590311U CN201590311U CN2009201747079U CN200920174707U CN201590311U CN 201590311 U CN201590311 U CN 201590311U CN 2009201747079 U CN2009201747079 U CN 2009201747079U CN 200920174707 U CN200920174707 U CN 200920174707U CN 201590311 U CN201590311 U CN 201590311U
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- Prior art keywords
- transformer
- output state
- induction coil
- winding region
- detecting output
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Abstract
A transformer device capable of detecting the output state is provided with a transformer including a first winding zone, a second winding zone, a primary coil, two secondary coils, an induction coil and a core unit, wherein the second winding zone and the first winding zone are arranged at intervals; the primary coil is wound around the first winding zone; the secondary coil is wound around the second winding zone at intervals; the induction coil comprises an initiating terminal, a terminal and a winding section formed between the initiating terminal and the terminal; the initiating terminal and the terminal extend to the first winding zone; the winding section is wound between the secondary coil; and the core unit forms a flux circuit connected with the primary coil, the secondary coil and the induction coil.
Description
Technical field
The utility model relates to a kind of device for transformer, and is particularly related to a kind of device for transformer of detecting output state.
Background technology
Backlight For Liquid Crystal Display Panels adopts the discharge tube circuit usually, generally all can consider to detect the operating state of discharge tube during circuit design, by analyzing the work of a detection signal with the execute protection circuit, for example power supply is closed or voltage reduction etc.
As No. the 94120180th, Taiwan patent application, No. 95218789, No. 92121581 disclosed discharge tube protective circuit; all directly link to each other with the discharge tube circuit; though have the effect of detecting discharge tube state; yet when will be when the discharge tube circuit is connected, circuit layout can make circuit layout difficult because of considering of high pressure creepage distance (Creepage).
In addition; as No. 92212167 disclosed discharge tube protective circuit of Taiwan patent application; it is characterized in that detecting by the mode of sensing discharge tube " light source "; and directly do not link to each other with discharge tube; hence one can see that must adopt a photoelectric cell (for example optical diode) to be used as detecting media; yet employed photoelectric cell quantity also will increase when the quantity of discharge tube increases; so on the large scale liquid crystal display, have the shortcoming that improves more cost; in addition, utilizing " light source " to judge on each discharge tube state as detecting is inaccurate.
Summary of the invention
The purpose of this utility model is to provide the device for transformer of the easy and output state detected that cost is low of a kind of circuit layout.
This device for transformer has a transformer, this transformer comprises one first winding region, second winding region, one and is wound in the primary coil of this first winding region, two secondary coils that are wound in this second winding region at intervals, and a core unit.
The utility model device for transformer is characterised in that: this first winding region and this second winding region are provided with at interval, this transformer also comprises an induction coil, this induction coil comprises an initiating terminal, an end end, and coiling section that is formed between this initiating terminal and this end end, this initiating terminal and this end end extend to this first winding region, this coiling section is wound between the described secondary coil, this core unit forms one and is connected in this primary coil, described secondary coil, and the flux path of this induction coil.
The beneficial effects of the utility model are: when this device for transformer running, this induction coil can produce mutual inductance Jiao Ripple effect with described secondary coil, therefore just change by the signal on this induction coil and can judge whether the operating state of described secondary coil is normal, and do not need extra detecing element, reach the low advantage of cost, in addition because the initiating terminal of this induction coil and this end end extend to this first winding region, therefore during the design circuit layout, only needing layout to arrive this first winding region just can be electrically connected with this end end with this initiating terminal, and do not need circuit layout is spanned to high-tension second winding region, so can reach the easier advantage of circuit layout.
Description of drawings
Fig. 1 is a three-dimensional exploded view, illustrates that the utility model can detect the preferred embodiment of the device for transformer of output state;
Fig. 2 is a three-dimensional combination figure, and a primary coil, two secondary coils, an induction coil, first drum stand, second drum stand, a combined bay, and the assembled state of a core unit are described in the above preferred embodiment;
Fig. 3 is the cutaway view of line III-III in Fig. 2, illustrates in the above preferred embodiment that this first and second drum stand is embedded in the assembled state of this combined bay;
Fig. 4 is a upward view, illustrates in the above preferred embodiment, and an initiating terminal and an end end of this induction coil extend to this first drum stand welded structure from this combined bay bottom;
Fig. 5 is a schematic diagram, illustrates in the above preferred embodiment, connects a switch element, a power control unit, a back coupling unit, and the structure of a plurality of discharge tubes;
Fig. 6 is a schematic diagram, and the circuit structure of the voltage back coupling module that this back coupling unit is comprised is described in the above preferred embodiment;
Fig. 7 is a schematic diagram, illustrates in the above preferred embodiment, and when adopting a plurality of transformer, all induction coils can adopt and be connected in parallel, and this back coupling unit can also comprise an electric current and feedbacks module;
Fig. 8 is a schematic diagram, and the circuit structure of the electric current back coupling module that this back coupling unit is comprised is described in the above preferred embodiment; And
Fig. 9 is a schematic diagram, illustrates in the above preferred embodiment, and when adopting a plurality of transformer, all induction coils can adopt and be connected in series.
Embodiment
Below in conjunction with drawings and Examples the utility model is elaborated:
As shown in Figure 1, 2, 3, the preferred embodiment that the utility model can be detected the device for transformer of output state has a transformer 200, second winding region 202 that this transformer 200 comprises that one first winding region 201, one and this first winding region 201 be provided with at interval, primary coil 31, two secondary coils 32, induction coil 33, one first drum stand 40, one second drum stand 50, a combined bay 60 that extends along an axis X, and a core unit 70.
This primary coil 31 is wound in this first winding region 201.
Described secondary coil 32 is wound in this second winding region 202 at intervals.
This induction coil 33 comprises an initiating terminal 331, one is finished end 332, and coiling section 333 that is formed between this initiating terminal 331 and this end end 332, this initiating terminal 331 extends to this first winding region 201 with this end end 332, this coiling section 333 is wound between the described secondary coil 32, the insulation effect of this induction coil 33 meets the creepage distance of 201 pairs of these second winding regions 202 of this first winding region and the safety standard of space length, safety standard in the present embodiment is meant (the IEC of International Electrotechnical Commission (IEC), International Electrotechnical Commission) safety standard of being formulated (IEC60065 for example, IEC60950, IEC60664-1 ...), or the electric (TUV of certification authority, VDE, UL) safety standard, the voltage that this induction coil 33 can insulate is greater than 3750V, in addition, this induction coil 33 can adopt a lead that is coated with a plurality of insulating barriers during manufacturing, this lead can use copper cash, described insulating barrier can use the Teflon sleeve pipe, or other has the material of insulation effect and meets safety standard.
This first and second drum stand 40,50 is incorporated into this combined bay 60 from the two opposite sides of this axis X respectively, and this first and second winding region 201,202 serves as that boundary is formed at respectively on this first and second drum stand 40,50 with this axis X.
This first drum stand 40 has first body 41, two first peristomes 42 that are formed at the opposite end of this first body 41 respectively that extend along this axis X, and a plurality of the first terminals 43 that are arranged on this first body 41.
This second drum stand 50 has second body 51 that extends along this axis X, two second peristomes 52 that are formed at the opposite end of this second body 51 respectively, and a plurality of second terminals 53 that are arranged on this second body 51, described first, two peristomes 42,52 respectively towards this first, two bodies 41, axial and this combined bay 60 of 51 is open, described first, two- terminal 43,53 wherein the two respectively from described first, two peristomes 42,52 be inserted in this first, two bodies 41, on 51, be electrically connected so as to producing with this core unit 70, also can only use odd number during actual the manufacturing, select described first for use, two-terminal 43, any one produces with this core unit 70 and is electrically connected in 53.
This combined bay 60 comprises second storage tank 62 chimeric with chimeric first storage tank 61 of this first drum stand 40, and this second drum stand 50, and the wire casing 63 corresponding to these induction coil 33 positions.
This first storage tank 61 have two respectively with the top wall of described first peristome 42 chimeric first on crack 611, and two first time chimeric with the below wall of described first peristome 42 respectively cracks 612.
This second storage tank 62 have two respectively with the top wall of described second peristome 52 chimeric second on crack 621, and two second time chimeric with the below wall of described second peristome 52 respectively cracks 622.The inboard of this first and second storage tank 61,62 and described first and second peristome 42, the 52 and outside is chimeric connects airtight is so as to reaching the function that increases chimeric effect and creepage distance.
This wire casing 63 extends the left and right side and the bottom of this combined bay 60, this wire casing 63 can make this induction coil 33 extend in this wire casing 63 and not protrude from these transformer 200 bottom surfaces, therefore can reach to make the function that these transformer 200 bottom surfaces are smooth and whole height reduces.
This core unit 70 forms one and is connected in this primary coil 31, described secondary coil 32, and the flux path of this induction coil 33, and in the present embodiment, this core unit 70 adopts two and is the involutory continuous iron core of U type respectively.
Shown in Fig. 1,2,4, this transformer 200 during fabrication, this primary coil 31 is wound on this first drum stand 40 in advance, described secondary coil 32 is wound on this second drum stand 50 in advance with this induction coil 33, when this first and second drum stand 40,50 combine with this combined bay 60 finish after, again this initiating terminal 331 and these end end 332 wire casings 63 from these combined bay 60 bottoms are extended on this first drum stand 40, and be welded in two the first terminals 43 respectively, assemble, fix the manufacturing operation that this core unit 70 is just finished this transformer 200 at last.
Shown in Fig. 2,5, this transformer 200 can be electrically connected a switch element 81, one and feedback unit 82 and a power control unit 83 when using.
Described secondary coil 32 is electrically connected on two discharge tubes 90 respectively.
Described the first terminal 43 wherein the two is electrically connected with this core unit 70, whereby, this core unit 70 can be electrically connected with an earth connection of this device for transformer by described the first terminal 43 in the present embodiment.
This switch element 81 is electrically connected on this primary coil 31.
This back coupling unit 82 is electrically connected between this induction coil 33 and this switch element 81, this switch element 81, this back coupling unit 82, this power control unit 83, reach this first winding region 201 and all be positioned at and this second winding region 202 the same side separately, so as to making circuit layout can meet the safety standard of this first winding region the creepage distance and the space length of this second winding region.
These power control unit 83 power controlling output to this switch element 81.
This device for transformer is when running; can design two kinds of protection flow processs according to actual demand; first kind shown in Fig. 5,6; this back coupling unit 82 comprises a voltage back coupling module 821 that is electrically connected between this induction coil 33 and this switch element 81; this voltage back coupling module 821 receives a voltage signal of these induction coils 33 and is transformed into this switch element 81; when voltage signal too big when undesired; this switch element 81 interrupts automatically or reduces power supply to this primary coil 31, and then reaches the function of protective circuit.
Second kind as Fig. 7, shown in 8, second kind is that this back coupling unit 82 also comprises an electric current back coupling module 822, this voltage back coupling module 821 is electrically connected on this induction coil 33, this switch element 81 and this power control unit, this electric current back coupling module 822 is electrically connected on described secondary coil 32 and this power control unit 83, this electric current back coupling module 822 receives a current signal of described secondary coil 32 and is transformed into this power control unit 83, this power control unit 83 cooperates these current signals and interrupts power supply to this switch element 81, in fact this current signal can be obtained from described secondary coil 32 through a current detection circuit 9, during actual the manufacturing, this current detection circuit 9 resistance 91 of connecting on discharge tube 90 circuit that each transformer 200 is constituted becomes light signal to be input to this electric current the current conversion on each resistance 91 by an optical coupler 92 again and feedbacks in module 822.
Whereby, when this device for transformer running, this induction coil 33 can produce coupling with described secondary coil 32, therefore just change by the signal on this induction coil 33 and can judge whether the operating state of described secondary coil 32 is normal, and do not need extra detecing element, reach the low advantage of cost, in addition because the initiating terminal 331 of this induction coil 33 extends to this first winding region 201 with this end end 332, and meet safety standard, therefore during the design circuit layout, only needing layout to arrive this first winding region 201 just can be electrically connected with this end end 332 with this initiating terminal 331, and do not need circuit layout is spanned to high-tension second winding region 202, so can reach the easier advantage of circuit layout, if must receive the current signal of described secondary coil 32 in addition, can reach by this current detection circuit 9 and this electric current back coupling module 822.
As Fig. 7, shown in 9, what deserves to be mentioned is, when a device for transformer also comprises a plurality of transformer 200, the induction coil 33 of described transformer 200 can (as shown in Figure 7) parallel with one another or series connection (as shown in Figure 9), described discharge tube 90 also can adopt different connected modes at this second winding region 202, this back coupling unit 82 can adopt a transistor when reality is made, a plurality of diodes, the circuit for detecting that a plurality of resistance and a plurality of electric capacity are formed, this induction coil 33 is electrically connected in this circuit for detecting, whereby, just can provide this output signal to reach the function of use of detecting output state.
Claims (15)
1. the device for transformer that can detect output state, has a transformer, this transformer comprises one first winding region, second winding region, one and is wound in the primary coil of this first winding region, two secondary coils that are wound in this second winding region at intervals, and a core unit, this device for transformer is characterised in that:
This first winding region and this second winding region are provided with at interval, this transformer also comprises an induction coil, this induction coil comprises an initiating terminal, an end end, and coiling section that is formed between this initiating terminal and this end end, this initiating terminal and this end end extend to this first winding region, this coiling section is wound between the described secondary coil, and this core unit forms one and is connected in this primary coil, described secondary coil, and the flux path of this induction coil.
2. the device for transformer of detecting output state as claimed in claim 1 is characterized in that: this induction coil is a lead that is coated with a plurality of insulating barriers.
3. the device for transformer of detecting output state as claimed in claim 1, it is characterized in that: this transformer also comprises one first drum stand, second drum stand, and combined bay, this combined bay extends along an axis, this first and second drum stand is incorporated into this combined bay from the two opposite sides of this axis respectively, and this first and second winding region serves as that boundary is formed at respectively on this first and second drum stand with this axis.
4. the device for transformer of detecting output state as claimed in claim 3, it is characterized in that: this first drum stand has first body that extends along this axis, two first peristomes that are formed at the opposite end of this first body respectively, and a plurality of the first terminals that are arranged on this first body, this second drum stand has second body that extends along this axis, two second peristomes that are formed at the opposite end of this second body respectively, and a plurality of second terminals that are arranged on this second body, described first, two peristomes respectively towards this first, axial and this combined bay of two bodies is open, this combined bay comprises first storage tank chimeric with this first drum stand, and second storage tank chimeric with this second drum stand.
5. the device for transformer of detecting output state as claimed in claim 4, it is characterized in that: first storage tank of this combined bay have two respectively with the top wall of described first peristome chimeric first on crack, and two first time chimeric with the below wall of described first peristome respectively cracks, this second storage tank have two respectively with the top wall of described second peristome chimeric second on crack, and two second time chimeric with the below wall of described second peristome respectively cracks.
6. the device for transformer of detecting output state as claimed in claim 3, it is characterized in that: this combined bay comprises a wire casing corresponding to this induction coil position, this wire casing extends the left and right side and the bottom of this combined bay, and the initiating terminal of this induction coil and this end end extend on this first drum stand from the wire casing of this combined bay bottom.
7. the device for transformer of detecting output state as claimed in claim 3, it is characterized in that: this first drum stand has first body that extends along this axis, and a plurality of the first terminals that are arranged on this first body, wherein being electrically connected of described the first terminal with this core unit.
8. the device for transformer of detecting output state as claimed in claim 3, it is characterized in that: this second drum stand has second body that extends along this axis, and a plurality of second terminals that are arranged on this second body, wherein being electrically connected of described second terminal with this core unit.
9. the device for transformer of detecting output state as claimed in claim 1, it is characterized in that: also have one and be electrically connected on the switch element of this primary coil, a power control unit that is electrically connected on this switch element, and back coupling unit, this back coupling unit is electrically connected on this induction coil, this switch element, this back coupling unit, this power control unit, reach this first winding region and all be positioned at and this second winding region the same side separately, and meet the safety standard of this first winding region the creepage distance and the space length of this second winding region.
10. the device for transformer of detecting output state as claimed in claim 9 is characterized in that: this induction coil is a lead that is coated with a plurality of insulating barriers.
11. the device for transformer of detecting output state as claimed in claim 9 is characterized in that: have a plurality of transformers, the induction coil of described transformer is parallel with one another.
12. the device for transformer of detecting output state as claimed in claim 9 is characterized in that: have a plurality of transformers, the induction coil of described transformer is connected mutually.
13. the device for transformer of detecting output state as claimed in claim 9 is characterized in that: the core unit of this transformer is electrically connected with an earth connection.
14. the device for transformer of detecting output state as claimed in claim 9, it is characterized in that: this back coupling unit comprises a voltage back coupling module that is electrically connected between this induction coil and this switch element, this voltage is feedback module and is received a voltage signal of this induction coil and be transformed into this switch element, and this switch element cooperates this voltage signal and interrupts power supply to this primary coil.
15. the device for transformer of detecting output state as claimed in claim 9, it is characterized in that: this back coupling unit comprises a voltage back coupling module and an electric current back coupling module, this voltage back coupling module is electrically connected on this induction coil, this switch element and this power control unit, this voltage back coupling module receives a voltage signal of this induction coil and is transformed into this switch element, this switch element cooperates this voltage signal and interrupts power supply to this primary coil, this electric current back coupling module is electrically connected on described secondary coil and this power control unit, this electric current is feedback module and is received a current signal of described secondary coil and be transformed into this power control unit, and this power control unit cooperates this current signal and interrupts power supply to this switch element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201747079U CN201590311U (en) | 2009-04-24 | 2009-08-28 | Transformer device capable of detecting output state |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920152413.6 | 2009-04-24 | ||
| CN2009201747079U CN201590311U (en) | 2009-04-24 | 2009-08-28 | Transformer device capable of detecting output state |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201590311U true CN201590311U (en) | 2010-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201747079U Expired - Fee Related CN201590311U (en) | 2009-04-24 | 2009-08-28 | Transformer device capable of detecting output state |
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|---|---|
| CN (1) | CN201590311U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106057447A (en) * | 2016-07-05 | 2016-10-26 | 海宁联丰东进电子有限公司 | Transformer of small power supply |
| CN109192469A (en) * | 2018-08-15 | 2019-01-11 | 湖州同立光电材料有限公司 | Transformer with automatic earthing end |
-
2009
- 2009-08-28 CN CN2009201747079U patent/CN201590311U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106057447A (en) * | 2016-07-05 | 2016-10-26 | 海宁联丰东进电子有限公司 | Transformer of small power supply |
| CN109192469A (en) * | 2018-08-15 | 2019-01-11 | 湖州同立光电材料有限公司 | Transformer with automatic earthing end |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20100922 Termination date: 20160828 |