CN202736634U

CN202736634U - Pulse transformer

Info

Publication number: CN202736634U
Application number: CN 201220299600
Authority: CN
Inventors: 徐钰钦
Original assignee: QUANDE ELECTRONIC CO Ltd
Current assignee: QUANDE ELECTRONIC CO Ltd
Priority date: 2012-06-20
Filing date: 2012-06-20
Publication date: 2013-02-13
Anticipated expiration: 2022-06-20

Abstract

The utility model provides a pulse transformer which comprises two magnetic core elements and winding coil groups. Two sides of a base portion of each magnetic core element are abut joint portions and connection points are arranged on lateral sides of the abut joint portions. Base portions of the two magnetic core elements carry out winding through wires to respectively form the winding coil groups. Wires extending from two sides of each winding coil group are respectively positioned on the connection points of the abut joint portions, and the other sides, adjacent to the connection points, of the two magnetic core elements are mutually closed side by side. Rubber mass is utilized to enable the two magnetic core elements to be fixed and combined to be a ring-shaped magnetic return circuit which is formed integrally. A hollow channel which is provided with a gap is formed between the two magnetic core elements. A primary side winding coil group and a secondary side winding coil group are wound on the two magnetic core elements to reduce the number of winding coils, so that the diameter of wires can be improved to effectively reduce generated resistance, magnetic flow leaking is greatly reduced to achieve high performance, and a processing procedure is simple and easy, and whole manufacturing cost is low.

Description

Pulse transformer

Technical field

The utility model provides a kind of pulse transformer, espespecially twine respectively on two magnetic core element and form the once coiling group of side and secondary side, and two magnetic core element also become one by utilizing colloid to set firmly mutually, and be formed with the gapped hollow channel of tool between two magnetic core element, significantly reduce flux leakage with this and reach high performance, and make procedure more simple and easy, whole manufacturing cost is more cheap.

Background technology

The now fast development of computer technology, make PC or notebook computer be prevalent in each corner in the society, its computer development trend also, speed strong towards calculation function reaches soon the little direction of volume and strides forward, because during network communications technology is also rapidly flourish, and with people life, study, work and lie fallow and bring another different brand-new boundary in the past into, make people more fervent and inseparable with the relation between the network.

Moreover, along with the computer development trend, Local Area Network (LAN) begins to be widely used in interconnected between the PC, and derived the wide area network (WAN) of crossing over the farther a plurality of Local Area Networks of distance join by Local Area Network, provide simultaneously than radio area network (WLAN) and connect faster and stable transmission rate, therefore, in recent years, network connector not only becomes the standard configuration of computer and Information of Science and Technology product, for example Digital Television or other multimedia video equipment, consumption electronic product is brought into use network connector equally, yet, in these network connectors, pulse transformer (Pulse Transformer) is one of wherein main electronic component, and necessary energy transmission pulse signal at a high speed possesses the functions such as insulation isolation between the signal input and output simultaneously.

Yet, tradition pulse transformer structure is to utilize wire to twine around mode with ring-type at a toroidal core, though and this toroidal core can reduce flux leakage compared to other magnetic core jaggy, but pulse transformer often is subject to the toroidal core shape, generally all be to utilize to make by hand, be difficult to utilize the automatic winding mode to make and improve the volume production difficulty, quality also is difficult for keyholed back plate, because pulse transformer has certain volume, a plurality of pulse transformers are arranged on the wiring board simultaneously just can take too much space, also can affect the configuration on the wiring board or need the original specification of change wiring board.

Be with, in order to realize the mass production of pulse transformer automatic winding, make the smaller volume of magnetic core, reduce winding turns, just there is the dealer to develop this kind SMD LED surface-mount device LED or SMD (SMT) pulse transformer, it is to adopt the automatic winding mode to twine at the drum type magnetic core, again the drum type magnetic core is combined with dull and stereotyped magnetic core, make magnetic flux circulation in drum type magnetic core and flat plate magnet core inner, and has the effect that is equal to toroidal core, but the winding turns on the drum type magnetic core unit volume is a lot, still can cause automatic winding be difficult for to realize and produce the man-hour of expending and cost are arranged, can't shorten the problem that processing time-histories and processing are difficult for, and because winding turns becomes many so that wire diameter relatively must be very thin, uprise with the impedance that causes wire to produce, then remain to be engaged in this journey dealer and redesign effectively and solved.

Summary of the invention

Designer of the present utility model is because problem and the disappearance of existing pulse transformer, so collect related data via in many ways assessment and consider, and utilize for many years research and development experience of engaging in the industry constantly to study and revise, begin to design the utility model birth of this kind pulse transformer.

Main purpose of the present utility model is on the base portion of two magnetic core element to be twined respectively by wire and forms the coiling group, and each extended wire in place, coiling group both sides is positioned respectively on contact corresponding to the docking section at base portion both sides places, and the docking section of two magnetic core element adjacent to another side edge of contact for mutually and become one by utilizing colloid to set firmly and combining, and make two magnetic core element form an annular magnet loop by the magnetic conduction function of colloid institute tool, and be formed with the gapped hollow channel of tool between two magnetic core element, be wound with the coiling group of primary side and secondary side on this kind two magnetic core element for can reduce winding turns, make the wire diameter that twines on the magnetic core element be able to relatively improve and effectively reduce the impedance that produces, thereby significantly reduce flux leakage and reach high performance, and make procedure become more simple and easy in the time of can saving worker and be applicable to a large amount of productions, whole manufacturing cost is more cheap.

Secondary objective of the present utility model is on the docking section of two magnetic core element that opposite side place with respect to contact is for being installed with a lid, and processing is processed in the polishing of the position that need to fix in the docking section, by lid the docking section on two magnetic core element is integrated in conjunction with being fixed into again, and it is made that this lid can be an insulation material, and by lid have the shielding with the isolation effect, make two magnetic core element not be vulnerable to external electromagnetic waves or noise interference, to guarantee whole function and the effect used.

For reaching above-mentioned purpose, the utility model provides a kind of pulse transformer, include two magnetic core element and coiling group, wherein place, the base portion both sides of this magnetic core element is provided with the docking section of protrusion, and be provided with at least one contact in a side edge of docking section, form respectively the coiling group of primary side and the coiling group of secondary side and carry out at least one times above winding by wire on the base portion of two magnetic core element, and each extended wire in place, coiling group both sides is positioned respectively on contact corresponding to docking section, the docking section of two magnetic core element adjacent to another side edge of contact mutually and lean on, and utilize colloid to set firmly and combine and become one, and be formed with the gapped hollow channel of a tool between two magnetic core element.

Described pulse transformer, wherein, the docking section of this magnetic core element is formed with the composition surface adjacent to another side edge of contact, and is coated with colloid on the composition surface, and described colloid is conducting resinl or non-conductive adhesive.

Described pulse transformer wherein, utilizes the chimeric or gummed mode of buckle to be installed with a lid with respect to the opposite side place of contact on the docking section of this two magnetic core element.

Described pulse transformer, wherein, the position that need to fix with respect to the opposite side place of contact on the docking section of this magnetic core element utilizes polishing or grinds and process processing.

Described pulse transformer, wherein, this lid is made for the insulation material.

The beneficial effects of the utility model are: be wound with the coiling group of primary side and secondary side on two magnetic core element for can reduce winding turns, make the wire diameter that twines on the magnetic core element be able to relatively improve and effectively reduce the impedance that produces, thereby significantly reduce flux leakage and reach high performance, and make procedure become more simple and easy in the time of can saving worker and be applicable to a large amount of productions, whole manufacturing cost is more cheap; Described lid has shielding and the effect of isolating, and makes two magnetic core element not be vulnerable to external electromagnetic waves or noise interference, to guarantee whole function and the effect used.

Description of drawings

Fig. 1 is stereo appearance figure of the present utility model;

Fig. 2 is three-dimensional exploded view of the present utility model;

Fig. 3 is the three-dimensional exploded view at another visual angle of the utility model;

Fig. 4 is the three-dimensional exploded view of the utility model preferred embodiment;

Fig. 5 is the front view of the utility model preferred embodiment;

Fig. 6 is the end view of the utility model preferred embodiment.

Description of reference numerals: 1-magnetic core element; The 10-passage; The 11-base portion; The 111-stop surface; The 12-docking section; The 121-contact; The 122-composition surface; The 13-lid; 2-coiling group; The 21-wire; The wiring of 211-signal; 212-tap wiring.

Embodiment

For reaching above-mentioned purpose and effect, the technological means that the utility model adopts and structure thereof, hereby drawing illustrates in detail that with regard to preferred embodiment of the present utility model its structure is as follows with function, in order to understanding fully.

See also Fig. 1, Fig. 2, shown in Figure 3, be respectively stereo appearance figure of the present utility model, the three-dimensional exploded view at three-dimensional exploded view and another visual angle, find out by knowing among the figure, the utility model includes two magnetic core element 1 and coiling group 2, wherein this magnetic core element 1 centre has a base portion 11, and both sides places be provided with the docking section 12 of protrusion in base portion about in the of 11, its base portion 11 all is formed with the poor shape stop surface 111 of section of outside turnover adjacent to 12 places, docking section, and docking section 12 side edge are provided with the contact 121 of at least one protrusion, 12 another side edge adjacent to contact 121 are formed with composition surface 122 in the docking section again, then carry out at least one times above the winding by the wire 21 of coiling group 2 on the base portion 11 of magnetic core element 1, and have respectively two signal wiring 211 and two tap wiring 212 in the extended wire 21 in place, coiling group 2 both sides, and each signal wiring 211 can utilize crimping, welding, the modes such as gummed are positioned on the contact 121 of magnetic core element 1 one side place docking section 12 correspondences, and two tap wiring 212 also can utilize crimping, welding, the modes such as gummed are positioned on the same contact 121 of docking section, magnetic core element 1 opposite side place 12, can organize thus the single finished product of magnetic core element 1 modularity that consists of tool coiling group 2, significantly dwindling magnetic core element 1 volume, and can effectively reduce the winding turns of coiling group 2.

When two magnetic core element 1 that are wound with coiling group 2 in when assembling, to utilize dip-coating on 12 composition surfaces 122, docking section with magnetic core element 1 first, the processing modes such as some glue are coated with the colloid (not shown) that can be conducting resinl or non-conductive adhesive, again with 12 composition surfaces 122, docking section at two magnetic core element both sides place about in the of 1 mutually and lean on, and behind the colloid cooling curing, just the docking section 12 of two magnetic core element 1 also can be become one by setting firmly to combine mutually, and make two magnetic core element 1 form an annular magnet loop by the magnetic conduction function that the colloid preferred embodiment can be conducting resinl institute tool, and be formed with the gapped hollow channel 10 of a tool between two magnetic core element 1, be wound with respectively the coiling group 2 of primary side and secondary side on this kind two magnetic core element 1, can effectively reduce on the drum type magnetic core that has pulse transformer now and expend man-hour and cost because winding turns much causes, the problem that processing is difficult for, and because the winding turns of coiling group 2 reduces, can make wire 21 wire diameters of twining on magnetic core element 1 unit volume be able to relatively improve and effectively reduce the impedance that produces, and utilize two magnetic core element 1 to cooperate coiling group 2 to form an annular magnet loop, 1 also non-notch generation of its two magnetic core element, thereby significantly reduce magnetic flux (Leakage Flux) leakage and reach high performance, and can save the man-hour of expending in the manufacturing, make procedure become more simple and easy and be applicable to modular a large amount of production, whole manufacturing cost is more cheap.

Other sees also Fig. 4, Fig. 5, shown in Figure 6, be respectively the three-dimensional exploded view of the utility model preferred embodiment, front view and end view, find out by knowing among the figure, after above-mentioned two magnetic core element, 1 combination of the utility model is fixed, its docking section 12 also can be installed with lid 13 with respect to the opposite side place of contact 121, and it is made that these lid 13 better enforcements can be the insulation material, and the mode of two magnetic core element, 1 combination is the position utilization polishing that will need to fix with respect to the opposite side place of contact 121 on the docking section 12, after grinding waits and processes processing, lid 13 is covered on two magnetic core element 1 again, docking section 12 side edge that make lid 13 and two magnetic core element 1 mutually against, just can utilize buckle chimeric, the modes such as gummed are integrated lid 13 and two magnetic core element 1 in conjunction with being fixed into, also can rely on lid 13 to have shielding and the effect of isolating, make two magnetic core element 1 not be vulnerable to external electromagnetic waves or noise interference, to guarantee whole function and the effect used.

Be with, the utility model forms the once coiling group 2 of side and secondary side for twining respectively on two magnetic core element 1, and two magnetic core element 1 also become one by utilizing colloid to set firmly and combining mutually, and be formed with the gapped hollow channel 10 of tool between two magnetic core element 1, and utilize two magnetic core element 1 to cooperate coiling group 2 to form an annular magnet loop and can reduce winding turns, wire 21 wire diameters are improved effectively reduce the impedance that produces, thereby significantly reduce flux leakage and reach high performance, and make procedure become more simple and easy in the time of can saving worker and be applicable to a large amount of productions, whole manufacturing cost is more cheap, yet this embodiment limits claim of the present utility model, all other do not break away from the equalization of finishing under the skill spirit that the utility model discloses to be changed and modifies change, all should be contained in the claim that the utility model contains.

In sum, pulse transformer of the present utility model is for really reaching its effect and purpose, therefore the utility model really is the utility model of a practicality excellence, the application important document that meets in fact utility model patent, filing an application in the whence in accordance with the law, expects that examining committee grants accurate this case early, to ensure designer's of the present utility model arduous creation, if an ancient unit of weight office have any check doubtful, the indication of please writing to us without sparing, settled the doing one's utmost of designer of the present utility model cooperates, and the true feeling moral is just.

Claims

1. pulse transformer, it is characterized in that, include two magnetic core element and coiling group, wherein place, the base portion both sides of this magnetic core element is provided with the docking section of protrusion, and be provided with at least one contact in a side edge of docking section, form respectively the coiling group of primary side and the coiling group of secondary side and carry out at least one times above winding by wire on the base portion of two magnetic core element, and each extended wire in place, coiling group both sides is positioned respectively on contact corresponding to docking section, the docking section of two magnetic core element adjacent to another side edge of contact mutually and lean on, and utilize colloid to set firmly and combine and become one, and be formed with the gapped hollow channel of a tool between two magnetic core element.

2. pulse transformer as claimed in claim 1 is characterized in that, the docking section of this magnetic core element is formed with the composition surface adjacent to another side edge of contact, and is coated with colloid on the composition surface, and described colloid is conducting resinl or non-conductive adhesive.

3. pulse transformer as claimed in claim 1 is characterized in that, utilizes the chimeric or gummed mode of buckle to be installed with a lid with respect to the opposite side place of contact on the docking section of this two magnetic core element.

4. pulse transformer as claimed in claim 3 is characterized in that, the position that need to fix with respect to the opposite side place of contact on the docking section of this magnetic core element utilizes polishing or grinds and process processing.

5. pulse transformer as claimed in claim 3 is characterized in that, this lid is made for the insulation material.