CN2888619Y

CN2888619Y - Structure of balancing transformer

Info

Publication number: CN2888619Y
Application number: CN 200620003341
Authority: CN
Inventors: 杨清盛; 吴素华; 王淑珍
Original assignee: Taipei Multipower Electronics Co Ltd
Current assignee: Taipei Multipower Electronics Co Ltd
Priority date: 2006-01-06
Filing date: 2006-01-06
Publication date: 2007-04-11
Anticipated expiration: 2016-01-06

Abstract

The utility model relates to a balancing transformer structure, in particular to a transformer for balancing luminous tube current between adjacent transformers and saving space on circuit board, which is provided with a support body comprising complex supports, while the support body is provided with a plug jack, complex coils are wound on both sides of support body respectively, space is arranged between coils for partition, the support body is also provided with complex insulating strips with conductive terminals, the conductive terminals are respectively connected with coils on the support body electrically, an iron core with extension part is arranged on both sides of the support body respectively, the iron core is provided with a holding part that may penetrate in the plug jack of the support body, iron cores on both sides of the support body hold to each other through extension part, thus two or more than two luminous tubes can be connected simultaneously, this structure not only uses less quantity of balancing transformers to reduce manufacturing cost of display, but also save circuit space of display effectively, thereby meeting the trend of light, thin, short and small product.

Description

The balancing transformer structure

Technical field

The utility model is a kind of balancing transformer structure, especially instigate the transformer that is used for balance lamp current between adjacent transformers and saves space on the circuit board, not only can significantly reduce the number that uses balancing transformer in the display, and can effectively save the circuit space of display, allow display meets gently, thin, short, little product trend.

Background technology

Invent in picture tube in 1897,, be adopted to the display of TV and computer for a long time always, keep its irreplaceable status because of it has the good and cheap characteristics of image quality.Yet, nowadays but too technically, being faced with the challenge of Thin Film Transistor-LCD (TFT LCD), plasma display various flat-panel screens (FPD) such as (PDP), its leadership has begun to shake.Enter the nineties, Thin Film Transistor-LCD (TFT LCD), plasma display various technology such as (PDP) are the digitlization commodity gradually, tightly follow in the picture tube back that occupies the display leading position, follow in sb's footsteps.It is reported that at present industry nearly has ten kinds the relevant technology of display develop, and is about to commercialization except the display of picture tube; Research according to industrial circle is inferred, replace picture tube future most probably, it is exactly the Thin Film Transistor-LCD (TFT LCD) that attracts most attention at present, especially Thin Film Transistor-LCD (TFT LCD) is after overcoming the technology of large-scale picture, just further nibble in the market of the main product that is considered to be used in the desktop PC monitor traditionally-colour picture monitor with picture tube (CDT), and Thin Film Transistor-LCD (TFT LCD) all must use the light and handy fluorescent tube of high efficiency and external form as backlight, and fluorescent tube the most common to promptly be that cold-cathode tube (Cold Cathode FluorescentLamp) is called for short CCFL, therefore also cold-cathode tube has become in LCD the fluorescent tube of the most normal use, and in order to light fluorescent tube.

Moreover, along with the size of display is more and more big, backlight not applied of single fluorescent tube used, must in backlight, use a plurality of fluorescent tubes just can reach gratifying brightness, if drive the fluorescent tube that is connected in parallel more than two with a transformer or power conversion stage, because the difference of the resistance value of fluorescent tube own, have a strong impact on each lamp tube current of flowing through, cause the inhomogeneous distribution of electric current, and make that the luminosity of each fluorescent tube is all inequality, not only allow some fluorescent tube cause luminance shortage because of electric current is too small, reduced the picture quality of display, more can make some lamp current excessive and shorten life-span of fluorescent tube itself and whole system, so, use under the more prevalent situation at LCD product, inverted rectifier (inverter) at the lighting up multiple luminous tubes device, for preventing to cause each lamp tube current difference of flowing through because of the resistance value difference of fluorescent tube, so in the application loop of inverted rectifier, can add balancing transformer in fluorescent tube high-pressure side or low-pressure end, also can add balancing transformer in the input of high-tension transformer, to utilize balancing transformer to reduce the different effect of tube impedance value difference, to reach each lighting tube brightness effect of uniform, yet, because a balancing transformer only can connect one or two fluorescent tube, so when promoting a plurality of fluorescent tube, still must use a plurality of balancing transformers, but this mode not only raises the cost, and more causes circuit board space to be subjected to more restriction in utilization.

For this reason, how to solve problem and defective in the above-mentioned technology, be the relevant manufacturer that is engaged in the industry and desire most ardently the direction place that research improves.

Summary of the invention

Main purpose of the present utility model is to provide a kind of balancing transformer structure, this structure can allow balancing transformer electrically connect two or more fluorescent tubes simultaneously, reduce the different effect of tube impedance value difference with the high induction reactance characteristic of utilizing balancing transformer, not only can use the balancing transformer of lesser amt, to reduce the manufacturing cost of display, and can further save the circuit space of display, allow display can more meet light, thin, short, little trend.

Secondary objective of the present utility model is that the balancing transformer structure that provides can avoid between each coil because of prolonging identity distance from the not enough arcing situation that produces, moreover, can further be socketed with insulating case on the support body, allow the balancing transformer that is arranged at the fluorescent tube high-pressure side can bear high pressure, promote the resistance to pressure of balancing transformer, but and the reliability of intensifier circuit.

The support body of the balancing transformer structure that a purpose more of the present utility model provides is made up of with mode or series system side by side plural support, so that with the adjacent binding of plural support.

For reaching above-mentioned purpose and effect, the technical characterictic that the utility model adopted is as follows:

A kind of balancing transformer structure is provided with support body and plural iron core; It is characterized in that,

This support body is made up of the support of the adjacent binding of plural number, this support body has jack, these support body both sides are arranged with plural coil respectively, and between each coil, be provided with clearance space, and also be provided with the insulating trip of plural tool conducting terminal on the support body, and conducting terminal respectively with support body on the coil of institute's winding be electric connection;

This plural number iron core is divided into the both sides of support body, and these iron core both sides are respectively equipped with extension, and is provided with the support division of the jack that can penetrate support body.

Wherein, the support of the adjacent binding of this plural number is formed support body with series system.Support that perhaps should the adjacent binding of plural number is formed support body in mode side by side.

Below with reference to accompanying drawing and preferred embodiment of the present utility model its feature and function are described in detail, in order to understanding fully.

Description of drawings

Fig. 1 is the stereo appearance figure of the utility model preferred embodiment.

Fig. 2 is the three-dimensional exploded view of the utility model preferred embodiment.

Fig. 3 is the stereo appearance figure at another visual angle of the utility model preferred embodiment.

Fig. 4 is the schematic diagram () of the utility model when using.

Fig. 5 is the schematic diagram (two) of the utility model when using.

Fig. 6 is the schematic diagram (three) of the utility model when using.

Fig. 7 A is the schematic diagram () of another preferred embodiment of the utility model.

Fig. 7 B is the schematic diagram (two) of another preferred embodiment of the utility model.

Fig. 8 A is the utility model schematic diagram of a preferred embodiment () again.

Fig. 8 B is the utility model schematic diagram of a preferred embodiment (two) again.

Symbol description among the figure:

1, balancing transformer

11, support body

110, jack

111, support

112, coil

1121, low-pressure end coil

1122, high-pressure side coil

113, clearance space

114, insulating trip

115, conducting terminal

116, docking section

12, iron core

121, extension

122, support division

13, insulating case

131, buckle portion

2, fluorescent tube

3, high-tension transformer

Embodiment

See also Fig. 1, shown in Figure 2, be the stereo appearance figure and the three-dimensional exploded view of the utility model preferred embodiment, find out that by knowing shown in the figure balancing transformer 1 of the present utility model is provided with support body 11, plural iron core 12 and plural insulating case 13, wherein:

This support body 11 is made up of plural support 111, and support body 11 has jack 110, and support body 11 both sides are arranged with plural coil 112 respectively, and between each coil 112, be provided with clearance space 113, and also be provided with the insulating trip 114 of plural tool conducting terminal 115 on the support body 11, and conducting terminal 115 respectively with support body 11 on the coil 112 of institute's winding be electric connection.

This plural number iron core 12 is respectively equipped with extension 121 in both sides, and is provided with the support division 122 of the jack 110 that can penetrate support body 11.

This plural number insulating case 13 covers respectively and is overlying on support body 11 2 sides, and insulating case 13 is provided with buckle portion 131 to embed between the support body 11 in space 113.

The plural coil 112 of above-mentioned explanation is made up of low-pressure end coil 1121 and high-pressure side coil 1122, and that support body 11 can be the insulation material is made, and insulating case 13 also to can be the material that insulate made, it is made that plural iron core 12 then can be silicon steel sheet.

Please consult simultaneously shown in Fig. 1,2,3, for the stereo appearance figure at stereo appearance figure, three-dimensional exploded view and another visual angle of the utility model preferred embodiment, find out by knowing shown in the figure, this plural number support 111 is formed support body 11 with series system,

When assembling, plural number iron core 12 places two sides of support body 11 respectively, and allow the extension 121 of plural iron core 12 support mutually, and extension 122 is supported mutually in jack 110, make it be closed magnetic path footpath or have the closed magnetic path footpath of air gap, again insulating case 13 is socketed on support body 11 2 sides respectively, the buckle portion 131 of insulating case 13 is embedded between the support bodys 11 in space 113, cover support body 11 2 sides so that insulating case 13 can be covered, promptly finish the assembling of the utility model preferred embodiment.

And when balancing transformer 1 of the present utility model when using, can see through clearance space 113 and insulating trip 114, with prolong and low-pressure end coil 1121 between prolong identity distance from, with avoid and low-pressure end coil 1121 between because of prolonging identity distance from the not enough arcing situation that produces, moreover, can bear high pressure for being arranged with insulating case 13, allowing the balancing transformer 1 that is arranged at fluorescent tube 2 high-pressure sides on the support body 11, promote the resistance to pressure of balance transformation 1 device, but and the reliability of intensifier circuit.

Please consult Fig. 4 simultaneously, 5, shown in 6, be the schematic diagram () of the utility model when using, schematic diagram (two) and schematic diagram (three), find out by knowing shown in the figure, be arranged at the high-pressure side of fluorescent tube 2 when balancing transformer 1 of the present utility model, and be electrically connected with two or more fluorescent tubes 2, reduce fluorescent tube 2 resistance value differential effect with the high induction reactance characteristic of utilizing balancing transformer 1, fully solve because of fluorescent tube 2 property differences the counter productive that may cause, the electric current that the different fluorescent tubes of active balance are 2, the life-span that not only can keep fluorescent tube 2, and can make the brightness of each fluorescent tube 2 even, and reduce the number that uses balancing transformer 1 in the display by this, to reduce the manufacturing cost of display, and can further save the circuit space of display, display can more be met gently, thin, short, little trend, moreover, balancing transformer 1 of the present utility model removes the high-pressure side that can be arranged at fluorescent tube 2, also can or be arranged at the low-pressure end of fluorescent tube 2, and can add balancing transformer 1 in the input of high-tension transformer 3, promote convenience and the scope of application of balancing transformer 1 of the present utility model when using.

Please consult Fig. 7 A simultaneously, Fig. 7 B, Fig. 8 A, shown in Fig. 8 B figure, schematic diagram () for another preferred embodiment of the utility model, schematic diagram (two), schematic diagram of a preferred embodiment (one) and schematic diagram (two) again, find out by knowing shown in the figure, balancing transformer 1 of the present utility model is provided with docking section 116 in plural support 111, to allow plural support 111 can utilize docking section 116 to link in mode side by side, and composition support body 11, allow balancing transformer 1 can be connected with more fluorescent tube 2 by this, to reduce the number that uses balancing transformer 1 in the display, and then the manufacturing cost of reduction display, and the user is provided the balancing transformer 1 of different patterns, promote the convenience and the scope of application used.

And key protection point of the present utility model is made up of plural support 111 adjacent bindings by the support body 11 at balancing transformer 1; and support body 11 2 sides are respectively equipped with the insulating trip 114 of plural tool conducting terminal 115; and conducting terminal 115 respectively with support body 11 on the coil 112 of institute's winding be electric connection; and be equipped with the iron core 12 of tool extension 121 respectively in both sides in support body 11; and iron core 12 is provided with the support division 122 of the jack 110 that can penetrate support body 11; and the iron core 12 of support body 11 both sides sees through extension 121 and supports mutually; the closed magnetic path footpath that makes it be closed magnetic path footpath or have air gap; can allow balancing transformer 1 electrically connect two or more fluorescent tubes 2 simultaneously by this; not only can utilize the high induction reactance characteristic of balancing transformer 1 to reduce fluorescent tube 2 resistance value differential effect; and can significantly reduce the quantity of balancing transformer 1 required setting; not only significantly reduce manufacturing cost; and can further save the circuit space of display; to dwindle the volume of display integral body, it is light to allow it meet electronic product more; thin; short; little trend.

Moreover, balancing transformer 1 of the present utility model is provided with clearance space in 112 of plural coils, and be provided with insulating trip in support body 11, prolong by this and low-voltage coil 1121 between prolong identity distance from, can avoid and low-voltage coil 1121 between produce the arcing situation because of prolonging identity distance from not enough, and can bear high pressure for being socketed with insulating case 13, allowing the balancing transformer 1 that is arranged at fluorescent tube 2 high-pressure sides on the support body 11, not only promote the resistance to pressure of balancing transformer 1, and the further reliability of intensifier circuit.

The above, it only is preferred embodiment of the present utility model, non-so promptly limit to claim of the present utility model, so the simple and easy modification and the equivalent structure that use the utility model specification and accompanying drawing content to do such as change, all should in like manner be contained in the claim of the present utility model, close and give Chen Ming.

In sum, the above-mentioned balancing transformer structure of the utility model can reach its effect and purpose really when using, so the utility model is the design of a practicality excellence really, meet the application important document of patent, files an application in accordance with the law.

Claims

1, a kind of balancing transformer structure is provided with support body and plural iron core; It is characterized in that,

2, balancing transformer structure as claimed in claim 1 is characterized in that, the support of the adjacent binding of this plural number is formed support body with series system.

3, balancing transformer structure as claimed in claim 1 is characterized in that, the support of the adjacent binding of this plural number is formed support body in mode side by side.

4, balancing transformer structure as claimed in claim 1 is characterized in that, this balancing transformer also is provided with insulating case, and this insulating case is socketed on this support body.