CN201274209Y

CN201274209Y - Filter assembly

Info

Publication number: CN201274209Y
Application number: CNU2008202105582U
Authority: CN
Inventors: 赵云
Original assignee: Delta Optoelectronics Inc
Current assignee: Delta Electronics Inc; Delta Optoelectronics Inc
Priority date: 2008-08-28
Filing date: 2008-08-28
Publication date: 2009-07-15
Anticipated expiration: 2018-08-28

Abstract

The utility model discloses a filter assembly, comprising a base, a magnetic core, at least one line group and at least two pins. The base is provided with a bottom wall and a fixing wall which is arranged on the bottom wall for defining a holding space. At least one line group is enwound on the magnetic core; at least two pins are arranged outside the fixing wall; the magnetic core on which at least one line group is enwound is placed in the holding space; and the two ends of at least one line group pass through at least two lead holes of the fixing wall and then are connected with at least two pins. Thereby, the bulk of the filter assembly can be reduced; the interference on peripheral electronic devices can be avoided; and the line group and the magnetic core can be protected.

Description

A kind of filter assembly

Technical field

The utility model relates to the filter assembly, and is particularly little about a kind of volume, can avoid interference peripheral electronic installation and can protect its inner line group and magnetic core to avoid the filter assembly of being damaged.

Background technology

In recent years, high-tech industry is prosperous day by day, and the use chance of various electronic product heals and becomes frequent in the daily life.General electronic products has comprised many electronic building bricks, and each electronic building brick is easy to generate a large amount of Electromagnetic Interference, hereat often adopts line filter (line filter) to reduce electromagnetic interference between electronic building brick and circuit.And in order to improve convenience and the portable in the use, the volume miniaturization has become the inexorable trend of current design of electronic products, therefore dwindle necessary assembly-line filter-volume, just for this reason industry in response to one of main means of electronic product overall dimensions demand.

Existing line filter 1 is to comprise two groups of line groups 11 (or claiming coil, winding), an iron core (scheming not shown) and a pedestal 13, and its end view system is shown in the 1st figure.Two groups of line groups 11 are wound in the both sides of outer surface unshakable in one's determination respectively, just are fixed on the pedestal 13 after the wrap wire group 11 unshakable in one's determination.Pedestal 13 comprises several from the downward extended pin 15 of pedestal 13 upper surfaces, and each lead-in wire of organizing line group 11 two ends needs to electrically connect to form with pin 15 welding.Because lead-in wire system draws downwards with the pin 15 with below unshakable in one's determination and welds, make lead-in wire and pin 15 welding place formation solder joint 17 bed hedgehoppings the whole height of line filter 1, formed the gap 10 of about 2～5 millimeters (mm) simultaneously, such structure not only occupies volume bigger in the electronic product, the line group 11 of line filter 1 exposes to the open air also easily to cause outside to be damaged and with adjacent electronic building brick the phenomenon of interference takes place, and influences the normal operation of line filter.

In sum, line filter is because structural design is bad now, and it is excessive, fragile and disturb problem such as peripheral electronic building brick to exist volume.In view of this, how to improve the structural design of line filter, and then make and adopt the electronic product volume of this line filter to reduce, and avoid line filter to damage simultaneously or produce disturbing, just industry is needed the target of reaching badly for this reason.

The utility model content

The purpose of this utility model is to provide a kind of filter assembly; the volume that the filter assembly is taken in the electronic product of being used is littler, and the damage that avoids causing because of being collided of the line group in simultaneously can the protecting filter assembly and magnetic core, avoids peripheral other electronic building brick is caused electromagnetic interference.

For reaching above-mentioned purpose, provide a kind of filter assembly; Comprise a pedestal, a magnetic core, at least one line group and at least two pins.Pedestal has a diapire and a fixation wall, and fixation wall is located on the diapire to define an accommodation space, and fixation wall is provided with at least two wire guides.At least one line group has two ends, and at least one line group is wound on the magnetic core.At least two pins are arranged at outside the fixation wall.Wherein, the magnetic core system that is wound with at least one line group places accommodation space, and two terminal systems pass from least two wire guides respectively, to be connected at least two pins respectively.

The filter assembly will account for littler volume in applied electronic product; In addition, fixation wall inserted by the magnetic core that will be wound with at least one line group and diapire defines in the accommodation space, just can avoid colliding the damage that is caused, when also having reduced simultaneously running to interference that external electronic components caused.

Description of drawings

Fig. 1 is the end view of existing line filter;

Fig. 2 is the schematic diagram of filter assembly of the present utility model;

Fig. 3 is the vertical view of Fig. 2;

Fig. 4 is the profile of the utility model filter assembly;

Fig. 5 is the schematic diagram of another filter assembly of the present utility model.

Embodiment

Preferred embodiment of the present utility model as shown in Figure 2, it mainly illustrates the schematic diagram of one of this creation filter assembly 2.The vertical view of filter assembly 2 and profile are then respectively as shown in Figures 3 and 4.It should be noted that Fig. 4 is the profile along the hatching A-A ' drafting of Fig. 2.As shown in the figure, filter assembly 2 comprises a pedestal 21, a magnetic core 23, two wires group 25, four pins 27 and an inserted sheet 28.

Pedestal 21 has a diapire 211 and a fixation wall 213, and fixation wall 213 is located on the diapire 211, and defines an accommodation space jointly with diapire 211, and fixation wall 213 is provided with four wire guide 213a.In present embodiment, fixation wall 213 is to be discontinuous cylindric, and comprises four gaps, and aforementioned four wire guide 213a i.e. four gaps for this reason.Implement in the aspect in other, type also can be a continuous cylinder outside the fixation wall 213, and this moment, fixation wall 213 comprised four grooves, and aforementioned four wire guide 213a are these four grooves.Shown in each figure, the diapire 211 of this enforcement and fixation wall 213 are two to separate individuality, and wherein diapire 211 and fixation wall 213 can by bonding, buckle or mode such as screw togather be fixed together.Implement in the aspect in other, diapire and fixation wall also can be formed in one.When implementing this creation, the material of pedestal 21 can adopt polyvinyl chloride (PVC), but the utility model is not restriction with this material.

Shown in each figure, magnetic core 23 is to be circular, its material be chosen from Fe and ferroalloy one of them.Implement in the aspect in other, magnetic core 23 also can be other symmetric form body, such as rectangle etc.Aforementioned two wires group 25 is to be wound on the magnetic core 23, and more specifically, two wires group 25 is the both sides that are oppositely arranged and are wound in magnetic core 23 outer surfaces respectively, and each line group 25 all has two ends.The magnetic core 23 of wrap wire group 25 is to place accommodation space, between fixation wall 213 and the magnetic core 23 is to keep a gap.What need pay special attention to is that wrap wire group 25 back magnetic cores 23 are fastened the neighbour and are arranged on the diapire 211, and are closely adjacent between the two.In addition, the Sectional Area of the more known magnetic core of the Sectional Area of the magnetic core 23 that present embodiment adopted system is big, has reduced the height of magnetic core 23 by this, and has further dwindled the volume of filter assembly 2.

Four pins 27 are to be arranged at outside the fixation wall 213.More specifically, shown in the 2nd figure, the pin 27 of present embodiment is the edge of being located at diapire 213, and its shape is the L type.Each L type pin 27 one distolateral outside the edge that is convexly set in diapire 213, the other end then protrudes diapire 213 downwards in order to do plugging and be electrically connected to one of below circuit board (not shown).Yet, know this technical field person and also can spread to other position and number of pins are set.Two ends of each line group 25 pass from four wire guide 213a respectively, to be electrically connected to four pins 27 respectively.

As shown in Figure 2, the inserted sheet 28 of present embodiment is to be a m font, its two opposite ends system fixedly is embedded on the fixation wall 213, the gap portions system of the m font of inserted sheet 28 is in order to grip magnetic core 23, in other words, the m font breach bottom surface of inserted sheet 28 suitable with magnetic core 23 on edge connect, the inserted sheet 28 of this creation hereat can guarantee the desired safe distance of safety.In present embodiment, the material of inserted sheet 28 system adopts polyvinyl chloride (PVC), and its thickness is essentially 3.2 millimeters, but also can adopt other material and thickness in other embodiments, is not limited to the above.In addition, inserted sheet 28 is to be fixed on the pedestal 21 by being embedded, and adopts gluing simultaneously so that in conjunction with more certain, implement also can adopt other in conjunction with kenel in the aspect in other.

Except that the m font inserted sheet 28 that present embodiment adopted, in another enforcement aspect filter assembly 5 of this creation, also can adopt T font inserted sheet 58 as shown in Figure 5.The assembly of filter assembly 5 such as: pedestal 51, diapire 511, fixation wall 513, magnetic core 53 and coil 55 are all roughly the same with the corresponding assembly of the filter assembly 2 of previous embodiment, unique difference is that the inserted sheet 58 of filter assembly 5 is to be a T font.Hereat, two terminal relatively systems of inserted sheet 58 are directly connected on the fixation wall 513, and T font bottom is fixed on the diapire 511 of pedestal 51.The lower-left of the T font of inserted sheet 58 and bottom right two breach partly are in order to grip magnetic core 53; In in the case, coil 55 will be directly and within the fixation wall 513 face closely adjacent.All describe identically as for the material of use inserted sheet 58, thickness, do not give unnecessary details in addition at this with previous embodiment.

It should be noted that the quantity of each assembly of the present invention and each member is not exceeded with described herein, more specifically, aforementioned at least two wire guides, at least one line group, at least two pins, at least two gaps, all visual application aspect of at least two grooves are adjusted quantity.

In sum, compare down with known filter with characteristics such as equal-wattage, electric currents, in the filter assembly that this creation provides, the two ends lead-in wire of line group directly is not connected to pin downwards, but pass via the wire guide on the fixation wall of side, make not have the gap between the magnetic core that twines wired group and the pedestal and produce, reduce the whole height of filtering assembly, and then reduced volume.In addition; the magnetic core that twines wired group is placed in the accommodation space internal fixation that diapire on the pedestal and fixation wall are defined; in order to do the damage that the line group in the protecting filter assembly and magnetic core avoid causing because of being collided, reduce the interference that the filter assembly is caused when the running for external electronic components simultaneously.

Claims

1, a kind of filter assembly is characterized in that, comprises a pedestal, has a diapire and a fixation wall, and this fixation wall is located on this diapire to define an accommodation space, and this fixation wall is provided with at least two wire guides; One magnetic core; At least one line group has two ends, and this at least one line group is wound on this magnetic core; And at least two pins, be arranged at outside this fixation wall; Wherein, this magnetic core system that is wound with this at least one line group places this accommodation space, and this two terminal system passes from this two wire guide respectively at least, to be connected to this at least two pin respectively.

2, filter assembly as claimed in claim 1 is characterized in that, wherein this at least two pin is located on one of this diapire edge.

3, filter assembly as claimed in claim 1 is characterized in that, is to comprise the two wires group, and respectively this line group all has two ends.

4, filter assembly as claimed in claim 3 is characterized in that, wherein this fixation wall system is provided with four wire guides.

5, filter assembly as claimed in claim 4 is characterized in that, be to comprise four pins, and these terminal systems passes to be connected to these pins respectively from these wire guides respectively.

6, filter assembly as claimed in claim 1 is characterized in that, wherein this fixation wall be a continuous cylinder and a discontinuous cylinder one of them.

7, filter assembly as claimed in claim 6 is characterized in that, wherein this discontinuous cylinder comprises at least two gaps, and this at least two wire guide is this at least two gap.

8, filter assembly as claimed in claim 7 is characterized in that, wherein this discontinuous cylinder comprises at least two grooves, and this at least two wire guide is this at least two groove.

9, filter assembly as claimed in claim 1 is characterized in that, also comprises an inserted sheet, and this inserted sheet system strides to establish and is fixed on this fixation wall, in order to grip this magnetic core.

10, filter assembly as claimed in claim 1 is characterized in that, wherein between this fixation wall and this magnetic core is to keep a gap.

11, filter assembly as claimed in claim 1 is characterized in that, this magnetic core that wherein is wound with this at least one line group is fastened the neighbour and is arranged on this diapire.