CN201796696U

CN201796696U - Iron core coil unit

Info

Publication number: CN201796696U
Application number: CN2010202787095U
Authority: CN
Inventors: 王敬顺; 夏春华; 唐远彬
Original assignee: Advanced Connectek Inc
Current assignee: Advanced Connectek Inc
Priority date: 2010-07-28
Filing date: 2010-07-28
Publication date: 2011-04-13
Anticipated expiration: 2020-07-28

Abstract

The utility model provides an iron core coil unit which comprises a substrate, a plurality of U-shaped conducting wires, a first pin, a second pin and an iron core component, wherein a groove is formed on the substrate, and the groove is divided into a winding area and a non-winding area; the U-shaped conducting wires are spaced and arranged in the winding area, and each U-shaped conducting wire is provided with an opening and a concave part; the first pin and the second pin are arranged at two ends of the openings respectively, and the concave parts are positioned in the groove; and the iron core component is arranged in the groove and passes the concave part of each U-shaped conducting wire.

Description

The iron-core coil group

Technical field

This creation provides a kind of iron-core coil group, particularly a kind of groove and U-shaped lead of on substrate, being provided with, and core assembly imbedded the iron-core coil group that groove constitutes.

Background technology

The iron-core coil group is commonly used to make on inductance, transformer and common mode choke coil electronic building bricks such as (common mode choke) or the device.The lead (for example enamelled wire) that the process of traditional fabrication iron-core coil group is coated with insulating barrier with appearance is wound in the specific coiling zone on the core assembly.In order to reduce leakage inductance and flux loss, must adopt the core assembly of closed (annular) as a rule, this measure also can be avoided the extraneous magnetic line of force to enter and cause interference in the core assembly except solving the problem of aforementioned leakage inductance and flux loss.Yet enclosed core assembly also significantly is added to simultaneously the degree of difficulty that lead is twined on its surface.

In addition, tradition is used for that lead (enamelled wire) is wrapped in the enamelled wire that the coil winding machine on core assembly surface can use its diameter restrictions, and meticulous enamelled wire ruptures in the coiling process easily.Under the situation that the diameter of enamelled wire can't further reduce, the size of iron-core coil group is also therefore limited and be difficult to further miniaturization.

In order to solve the problem that coiling that closed iron core has is difficult for, known technology utilizes the composite type iron core, also is about to iron core and is divided into two or a plurality of section, waits to wind the line the section of each iron core to be engaged after finishing again.Yet this kind method must utilize the mode of artificial or machine the enamelled wire from coil to coil to be wrapped on the winding region of core assembly equally, not only increase the processing procedure time on foot, iron core engages the inductance value decline that formed heterogeneous body face (composition surface) also can cause whole iron-core coil group simultaneously.

Therefore, known iron-core coil group has coiling difficulty and is difficult to problem such as further miniaturization, demands relevant practitioner urgently and is improved.

Summary of the invention

Because the variety of problems that known technology had, this creation proposes a kind of iron-core coil group, comprises: substrate, a plurality of U-shaped lead, first pin, second pin and core assembly.Wherein, substrate comprises a groove, and this groove can be divided into a winding region and a non-winding region; A plurality of U-shaped leads then are to be intervally installed in winding region, and each U-shaped lead all has an opening and a recess, and the recess position is in groove; First pin and second pin are located at the two ends of opening respectively; Core assembly then is arranged in the groove, and passes through the recess of each U-shaped lead.

Therefore, size according to required inductance value, in advance the U-shaped lead of some is planted (perhaps in-molded) at least one winding region of groove in opening mode up, and then the core assembly that will have closed magnet circuit places groove, make its recess that passes through each U-shaped lead, can improve known technology thus must twine the inconvenience that core assembly caused by from coil to coil.

In addition, owing to need not use the coiling machine, so the size of iron-core coil group need not to yield to the coiling machine and further miniaturization.

In sum, this creation has solved the coiling that known technology had difficulty and has been difficult to problem such as further miniaturization.The embodiment of relevant this creation and effect thereof, conjunction with figs. explanation now as after.

Description of drawings

Fig. 1 is the exploded view of first embodiment of the invention.

Fig. 2 is the constitutional diagram (1) of first embodiment of the invention.

Fig. 3 is the constitutional diagram (2) of first embodiment of the invention.

Fig. 4 is the connecting portion schematic diagram (1) of first embodiment of the invention.

Fig. 5 is the connecting portion schematic diagram (2) of first embodiment of the invention.

Fig. 6 is the connecting portion schematic diagram (1) of second embodiment of the invention.

Fig. 7 is the connecting portion schematic diagram (2) of second embodiment of the invention.

Fig. 8 is the exploded view of third embodiment of the invention.

Fig. 9 is the constitutional diagram (1) of third embodiment of the invention.

Figure 10 is the constitutional diagram (2) of third embodiment of the invention.

Figure 11 is the connecting portion schematic diagram (1) of third embodiment of the invention.

Figure 12 is the connecting portion schematic diagram (2) of third embodiment of the invention.

Figure 13 is the exploded view of fourth embodiment of the invention.

Figure 14 is the constitutional diagram (1) of fourth embodiment of the invention.

Figure 15 is the constitutional diagram (2) of fourth embodiment of the invention.

Symbol description

1 iron-core coil group, 11 substrates

111 grooves, 112 winding regions

113 non-winding region 12U shape leads

121 first pins, 122 second pins

123 openings, 124 recesses

13 core assemblies, 14 connecting portions

142 crus secunda positions, 141 first pin positions

143 first signal contacts, 144 secondary signal contacts

145 the 3rd signal contacts 146 the 4th signal contact

15 first circuits, 18 centre taps

19 printed circuit board (PCB)s

Embodiment

Please refer to Fig. 1-3, be respectively exploded view, the constitutional diagram (1) and constitutional diagram (2) of first embodiment of the invention, comprise substrate 11, a plurality of U-shaped lead 12 and core assembly 13.Wherein, substrate 11 has a groove 111, and groove 111 can be divided into winding region 112 and non-winding region 113; And each U-shaped lead 12 is arranged at winding region 112 with fixed intervals each other, and has two ends that opening 123 and recess 124, the first pins 121 and second pin 122 are located at opening 123 respectively, and recess 124 is arranged in groove 111; Core assembly 13 is arranged in the groove 111 in addition, and passes through the recess 124 of each U-shaped lead 12.Thus, second pin 122 that only need make first pin 121 of U-shaped lead 12 be electrically connected on the U-shaped lead 12 that is adjacent can constitute the coil of a wound core assembly 13.When first pin 121 of U-shaped lead 12 the more is electrically connected on second pin 122 of the U-shaped lead 12 that is adjacent, just can increase the coil turn of wound core assembly 13, and then improve the inductance value of iron-core coil group 1.

Present embodiment is particularly suitable for as Inductive component, and employed core assembly 13 belongs to closed, has the characteristic of low magnetic flux loss, in addition, can be further at the winding region 112 of groove 111 the U-shaped slot be set, firmly to be arranged on the U-shaped lead 12 of winding region 112.

Please refer to Fig. 4-5 figure, be respectively the connecting portion schematic diagram (1) and schematic diagram (2) of first embodiment of the invention.In the present embodiment, first pin 121 of U-shaped lead 12 second pin 122 that sees through the connecting portion 14 be positioned at printed circuit board (PCB) 19 and adjacent U-shaped lead 12 indirectly is electrically connected.Connecting portion 14 is coupled to U-shaped lead 12, and has a plurality of first pin positions 141 and a plurality of crus secunda positions 142, and wherein, 141 of a plurality of first pin positions are not electrically connected on first pin 121 of a plurality of U-shaped leads 12; And 142 of a plurality of crus secundas positions are not electrically connected on second pin 122 of a plurality of U-shaped leads 12.In addition, present embodiment more comprises first circuit 15 of a plurality of arrangements spaced in parallel to each other, and wherein the two ends of each first circuit 15 are electrically connected on this first pin position 141 and distance 141 near crus secunda positions 142, the first pin position respectively.Thus, U-shaped lead 12 just can see through the bridge joint of the connecting portion 14 and first circuit 15, be able to constitute the loop construction of wound core assembly 13 with adjacent U-shaped lead 12 electric connections, wherein from 144 outputs of secondary signal contact, vice versa via 143 inputs of first signal contact for the signal of telecommunication.

Please refer to Fig. 6-7, be respectively the connecting portion schematic diagram (1) and connecting portion schematic diagram (2) of second embodiment of the invention.Present embodiment is that with the difference of first embodiment mode of connection of first circuit 15 is different, see through the mode of connection that changes first circuit 15, the a plurality of U-shaped leads 12 and first circuit 15 can be divided into two independently loop constructions, the U-shaped lead 12 that each loop construction comprised is connected each other with first circuit 15 and is constituted single electric loop.One of them loop construction is from first signal contact, 143 input electrical signals, and from 144 outputs of secondary signal contact; Another loop construction then is from the 3rd signal contact 145 input electrical signals, and then from 146 outputs of the 4th signal contact.When the dotted line among Fig. 7 points out that the iron-core coil group 1 of present embodiment combines with connecting portion 14, the connection relationship that the U-shaped lead 12 and first circuit are 15, in the present embodiment, the two coil structure has the U-shaped lead 12 and first circuit 15 of equal number, yet also can on demand the two coil structure be designed to have each other the varying number U-shaped lead 12 and first circuit 15.In addition, present embodiment is provided with centre tap 18 individually at two loop constructions on connecting portion 14.

Please refer to Fig. 8-10, be respectively exploded view, the constitutional diagram (1) and constitutional diagram (2) of third embodiment of the invention, the main difference of the present embodiment and first embodiment is that substrate 11 has two grooves 111 and two core assemblies 13.Shown in 11-12 figure, the U-shaped lead 12 of present embodiment can see through the binding of the connecting portion 14 and a plurality of first circuits 15 that are coupled to U-shaped lead 12 as the previous embodiment equally, and forms the loop construction of wound core assembly 13.

Please refer to Figure 13-15, be respectively exploded view, the constitutional diagram (1) and constitutional diagram (2) of fourth embodiment of the invention, the main difference of the present embodiment and first embodiment is that groove 111 can divide into two winding regions 112 and two non-winding regions 113, the quantity of the U-shaped lead 12 of two winding regions 112 of present embodiment is also inequality, yet also can be designed to have equal number on demand.

Though the technology contents of this creation discloses as above with preferred embodiment; so it is not in order to limit this creation; anyly be familiar with this technical staff; do not breaking away from the spirit a little change and the retouching done of this creation; all should be covered by in the category of this creation, so the protection range of this creation is when being as the criterion according to the content that claim defined.

Claims

1. an iron-core coil group is characterized in that, comprises:

One substrate comprises at least one groove, and this groove is at least one winding region and at least one non-winding region;

A plurality of U-shaped leads are intervally installed in this winding region, and each this U-shaped lead all has an opening and a recess, and this recess is positioned at this groove;

One first pin and one second pin lay respectively at two ends of this opening; And

One core assembly is arranged in this groove, and passes through this recess of each this U-shaped lead.

2. iron-core coil group as claimed in claim 1 is characterized in that, more comprises:

A junction is coupled to those U-shaped leads, comprises a plurality of first pin positions and a plurality of crus secundas position, and wherein those first pin positions are electrically connected on this first pin individually, and those crus secunda positions are electrically connected on this second pin individually.

3. iron-core coil group as claimed in claim 2 is characterized in that, more comprises:

A plurality of first circuits, arrangement spaced in parallel to each other, wherein the two ends of each this first circuit are electrically connected on this first pin position and this crus secunda position near apart from this first pin precedence respectively.

4. iron-core coil group as claimed in claim 3, it is characterized in that, those U-shaped leads and those first line areas are divided into a plurality of loop constructions, and those U-shaped leads that each this loop construction comprised are connected each other with those first circuits and constituted single electric loop.

5. iron-core coil group as claimed in claim 4 is characterized in that, the quantity of those U-shaped leads of at least one this loop construction is different from the quantity of those U-shaped leads of all the other those loop constructions.

6. iron-core coil group as claimed in claim 4 is characterized in that, the quantity of those of at least one this loop construction first circuit is different from the quantity of those first circuits of all the other those loop constructions.

7. iron-core coil group as claimed in claim 2 is characterized in that this connecting portion comprises a centre tap.