CN205428669U - Four groove wave filters - Google Patents

Abstract

The utility model discloses a four groove wave filters. The testing tool comprises a skeleto, even there is the magnetic core on the skeleton, it has the winding to wind on the magnetic core, its characterized in that, even there is the stitch on the skeleton, even there is the sleeve pipe on the stitch, the skeleton side is equipped with the sticky tape. The skeleton is four groove structures by two original groove structure upgrading, increases the turn -to -turn capacitance, improves when need not to increase the number of turns and suppresses the high frequency electromagnetic interference effect. On the other hand adopts the access way of L type stitch can obtain lower height through the mold design to small, with low costs, effectual brand -new solution is reached, various narrow and small spaces can be used. The stitch overcoat has indisputable fluorine actor playing a supporting role pipe, can improve its corrosion resistance, increases life. The sticky tape of side can spout seal product code and serial number, easily distinguishs.

Description

A kind of four groove wave filter

Technical field

Utility model relates to electronic applications, refers to a kind of wave filter, a kind of four groove wave filter.

Background technology

Wave filter, as the term suggests, it is the device that ripple is filtered." ripple " is a physical concept widely, at electronic technology field, and the process of the value fluctuations in time that " ripple " is narrowly confined to refer in particular to describe various physical quantity.The effect by various kinds of sensors of this process, is converted into the time function of voltage or electric current, the time waveform of the most various physical quantitys, or referred to as signal.Because the independent variable time is continuous value, so referred to as continuous time signal, it is referred to as analogue signal the most habitually.Along with the generation of digital electronic computer (being typically called for short computer) technology with develop rapidly, for the ease of computer, signal is processed, create complete theory and the method that under sampling theorem instructs, continuous time signal is transformed into discrete-time signal.That is, only can express primary signal by original analog signal sample value on series of discrete time coordinate point and not lose any information, since what these concepts of ripple, waveform, signal were expressed is the change of various physical quantitys in objective world, it is exactly the carrier of the various information that modern society depends on for existence naturally.Information needs to propagate, and lean on is exactly the transmission of waveshape signal.Signal it generation, change, each link of transmitting is likely to be due to environment and the existence of interference and distorts, so that signal and entrained information thereof are embedded in the middle of noise dearly.Wave filter can be widely applied at present in the circuit board of LED, but owing to the demand of higher suppression high-frequency electromagnetic interference is presently required, the filter coil number of turn is more, and volume is relatively big, limits the further development of LED.

Utility model content

The purpose of utility model is for the problems referred to above, it is provided that a kind of utilize L-type stitch to reduce the four ultra-thin groove wave filter of volume.

For reaching above-mentioned purpose, utility model have employed following technical proposal: a kind of four groove wave filter, including skeleton, it is connected with magnetic core on described skeleton, described magnetic core is wound with winding, it is characterised in that, being connected with stitch on described skeleton, described stitch is connected with sleeve pipe, described skeleton side is provided with adhesive tape.

In above-mentioned one four groove wave filter, described skeleton is four groove common mode skeletons.

In above-mentioned one four groove wave filter, described magnetic core is EFD15 type, and bimirror face is combined.

In above-mentioned one four groove wave filter, described winding is that enamel-covered wire coiling forms.

In above-mentioned one four groove wave filter, described stitch is L-type stitch.

In above-mentioned one four groove wave filter, described sleeve pipe is Teflon sleeve pipe.

Compared with prior art, the advantage of utility model is: skeleton is four groove structures by two original groove structure updating, increases turn-to-turn capacitance, without improving suppression high-frequency electromagnetic interference effect while increasing the number of turns.On the other hand use the access way of L-type stitch can obtain lower height by Design of Dies, thus it is little to reach volume, low cost, effective brand-new solution, may apply to various small space.It is cased with Furtulon sleeve pipe outside stitch, its corrosion resistance can be improved, increase service life.The adhesive tape of side can be with spray printing product code and numbering, it is easy to differentiate.

Accompanying drawing explanation

In order to be illustrated more clearly that utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only some embodiments of utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the structural representation of utility model；

Fig. 2 is utility model side view.

Detailed description of the invention

Below in conjunction with the accompanying drawing in utility model embodiment, the technical scheme in utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of utility model rather than whole embodiments.Based on the embodiment in utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of utility model protection.

As shown in Fig. 1 Fig. 2, a kind of four groove wave filter, including skeleton 1, skeleton 1 is four groove common mode skeletons, there are 4 winding slots, magnetic core 2 it is connected with on skeleton 1, magnetic core 2 is EFD15 type, it is wound with winding 3 on described magnetic core 2, winding 3 forms for enamel-covered wire coiling, stitch 4 it is connected with on skeleton 1, stitch 4 is L-type, this shape can be greatly reduced the overall height of wave filter, sleeve pipe 5 it is connected with on stitch 4, sleeve pipe 5 is Teflon sleeve pipe, there is stronger corrosion resistance, waterproof solar heat protection, the life-span of wave filter can be extended, skeleton 1 side is provided with adhesive tape 6, can be with stamp on adhesive tape 6, signal and numbering in order to marked product, easily distinguishable.Skeleton 1 is four groove structures by two original groove structure updating, increases turn-to-turn capacitance, without improving suppression high-frequency electromagnetic interference effect while increasing the number of turns.On the other hand use the access way of L-type stitch can obtain lower height by Design of Dies, thus it is little to reach volume, low cost, effective brand-new solution, may apply to various small space.It is cased with Furtulon sleeve pipe outside stitch 4, its corrosion resistance can be improved, increase service life.The adhesive tape 6 of side can be with spray printing product code and numbering, it is easy to differentiate.

The foregoing is only the preferred embodiment of utility model, not in order to limit utility model, within all spirit in utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in the protection domain of utility model.

Claims (6)

1. a groove wave filter, including skeleton (1), magnetic core (2) it is connected with on described skeleton (1), winding (3) it is wound with on described magnetic core (2), it is characterized in that, being connected with stitch (4) on described skeleton (1), described stitch (4) is connected with sleeve pipe (5), described skeleton (1) side is provided with adhesive tape (6).

A kind of four groove wave filter the most according to claim 1, it is characterised in that described skeleton (1) is four groove common mode skeletons.

A kind of four groove wave filter the most according to claim 1, it is characterised in that described magnetic core (2) is EFD15 type, bimirror face is combined.

A kind of four groove wave filter the most according to claim 1, it is characterised in that described winding (3) is that enamel-covered wire coiling forms.

A kind of four groove wave filter the most according to claim 1, it is characterised in that described stitch (4) is L-type stitch.

A kind of four groove wave filter the most according to claim 1, it is characterised in that described sleeve pipe (5) is Teflon sleeve pipe.