CN202058429U

CN202058429U - Electric energy distribution device

Info

Publication number: CN202058429U
Application number: CN2011201462550U
Authority: CN
Inventors: 卢增艺
Original assignee: Delta Electronics Shanghai Co Ltd
Current assignee: Delta Electronics Shanghai Co Ltd
Priority date: 2011-05-10
Filing date: 2011-05-10
Publication date: 2011-11-30
Anticipated expiration: 2021-05-10

Abstract

The utility model provides relates to an electric energy distribution device. The electric energy distribution device comprises a plurality of groups of identical core bodies, wherein each group of core bodies comprises a central core body and outer side core bodies arranged on two sides of and being parallel to the central core body; the central core bodies and the outer side core bodies of two groups of core bodies among the plurality of groups of core bodies are arranged oppositely, and other groups of core bodies are selectively arranged in the same direction as either of the two oppositely arranged groups of core bodies; and coils are wound at the peripheries of all the core bodies through reels. The electric energy distribution device is characterized by further comprising a current balancing core body arranged between the two oppositely arranged groups of core bodies and perpendicular to the core bodies in each group of core bodies, so as to separate the two groups of core bodies and balance current in the coils wound on the outer side core bodies.

Description

Power distribution unit

Technical field

The utility model relates to field of power transmission, relates in particular to a kind of power distribution unit.

Background technology

LCD (LCD) is a requisite device in the contemporary consumption electronic product.LCD be a kind of can luminous voluntarily display system, therefore must adopt the source of backlight (back light) as light, general back light source structure is to use many independently cold cathode halide lamp (Cold Cathode Fluorescent Lamps, CCFL) backlight module that combines, the back light source structure that is made of this so-called multi-lamp system (multi-lamps) has enough brightness, and illumination is even, can satisfy on the market demonstration performance for LCD, size, and the demand that increases day by day of aspect such as display efficiency.

In the prior art for power distribution in each fluorescent tube, usually adopt two E font core bodys that are oppositely arranged to reach the purpose of electric energy conversion, central core is as input end, the core body at two ends is as output terminal, be equivalent to a power distribution unit, and can realize the function of pressure regulation with four output terminals.Yet, the output current that this kind power distribution unit all can't each output terminal of balance, and then can't guarantee to have identical electric current in electricity connects with it each fluorescent tube, promptly do not have the current balance type function.

In above-mentioned power distribution unit, use common mode attitude chokes (common-mode chokes) though technology or other balancing circuitry can address these problems can cause the complicated of circuit, make the manufacturing cost increase.

Summary of the invention

Technical problem to be solved in the utility model is, a kind of power distribution unit is provided, can the balance multi-lamp system in every lamp tube current, reduce system dimension simultaneously and reduce production costs.

In order to address the above problem, the utility model provides a kind of power distribution unit, comprise identical many core assemblies body, every core assembly body comprises a central core and the outside core body parallel with central core that is arranged on the central core both sides, there are the central core and the outside core body of two core assembly bodies positioned opposite to each other in many core assemblies body, any one group in all the other each core assembly bodies selections and the above-mentioned two groups of core bodys that are oppositely arranged is provided with in the same way, each core body is on every side all by the bobbin winder bracket winding around, it is characterized in that, further comprise a current balance type core body, be arranged between the above-mentioned two core assembly bodies that are oppositely arranged, and vertical with core body in every core assembly body, be wrapped in electric current in the coil on the core body of the outside to separate two core assembly bodies and balance.

As optional technical scheme, the material of described many core assemblies body is iron.

As optional technical scheme, the material of described current balance type core body is an iron, is shaped as rectangular parallelepiped.

As optional technical scheme, the coil that twines around the central core in described many core assemblies body is one another in series, and the coil that twines around the outside core body of the homonymy in many core assemblies body is one another in series.

Advantage of the present utility model is, by using the integrated a plurality of transformers of single core body, reaches the purpose of every lamp tube current in the balance multi-lamp system, reduces system dimension simultaneously and reduces production costs.

Description of drawings

Accompanying drawing 1 is the structure side view of the described power distribution unit of this embodiment.

It shown in the accompanying drawing 2 structural representation that accompanying drawing 1 shown device is applied to 2n root lamp system occasion.

Embodiment

The embodiment of the power distribution unit that the utility model is provided below in conjunction with accompanying drawing elaborates.

Accompanying drawing 1 is the structure side view of the described power distribution unit of this embodiment, comprises the 4th core body of being separated by current balance type core body 3 of the first core assembly body 1, the second core assembly body 2, current balance type core body 3 and respective side.

Be the structural representation that is applied to 2n root lamp system occasion shown in the accompanying drawing 2, comprise that the first core assembly body 1, the second core assembly body 2 obtain n core body group altogether; That is n E font core architecture represented with 1 ~ n, and n central coil system is with P ₁~ Pn represents that 2n outer coil is then with S ₁, S ₂... S _2n-1, S _2nRepresent that certainly, n central coil all is to be one another in series, the number of turn of 2n outer coil is also all identical, but the current balance type core body still has only one.

The material of the first core assembly body 1 and the second core assembly body 2 is an iron.The material of current balance type core body 3 is an iron, is shaped as rectangular parallelepiped.

In addition, the structure of each core body group is all mutually the same, and since the 3rd core body group, each core body group all is to be arranged at the opposition side of second core body group with respect to first core body group in regular turn towards equidirectional ground with second core body group.This embodiment has only been arranged many core assemblies body in the second core assembly body, 2 one sides, in other embodiment, can also further arrange many core assemblies body in the side continuation of the first core assembly body 1.

In sum, the utility model provides a kind of transformer that is applied to multi-lamp system, by using a plurality of transformers of single core body integrated (integrate), reach the purpose of the electric current of every fluorescent tube in the balance multi-lamp system, reduce system dimension simultaneously and reduce production costs.

The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. power distribution unit, comprise identical many core assemblies body, every core assembly body comprises a central core and the outside core body parallel with central core that is arranged on the central core both sides, there are the central core and the outside core body of two core assembly bodies positioned opposite to each other in many core assemblies body, any one group in all the other each core assembly bodies selections and the above-mentioned two groups of core bodys that are oppositely arranged is provided with in the same way, each core body is on every side all by the bobbin winder bracket winding around, it is characterized in that, further comprise a current balance type core body, be arranged between the above-mentioned two core assembly bodies that are oppositely arranged, and vertical with the central core in the two core assembly bodies, be wrapped in electric current in the coil of the outside on the core body to separate two core assembly bodies and balance.

2. power distribution unit according to claim 1 is characterized in that, described current balance type core body be shaped as rectangular parallelepiped.

3. power distribution unit according to claim 1 is characterized in that, the coil that twines around the central core in described many core assemblies body is one another in series, and the coil that twines around the outside core body of the homonymy in many core assemblies body is one another in series.