CN201397728Y

CN201397728Y - Network transformer

Info

Publication number: CN201397728Y
Application number: CN2009200544861U
Authority: CN
Inventors: 刘汉泉
Original assignee: Dongguan Tonghe Industry Co ltd
Current assignee: Dongguan Tonghe Industry Co ltd
Priority date: 2009-04-14
Filing date: 2009-04-14
Publication date: 2010-02-03
Anticipated expiration: 2019-04-14

Abstract

The utility model relates to the technical field of transformers, in particular to a network transformer, including line frame, iron core, a plurality of copper lines and a plurality of pin, the line frame includes the spool and establishes the pin seat in the spool lower extreme left and right sides, spool and pin seat integrated into one piece, the pin is established on the pin seat, a plurality of copper lines are around establishing and forming the winding on the spool, and copper connection is between the pin, the iron core includes two half iron cores of symmetrical structure, half iron core includes integrated into one piece's core stem and core seat, the core stem of two half iron cores inserts the spool from the line frame left and right sides respectively, and the core stem terminal surface and the core seat terminal surface of one half iron core laminate with the core stem terminal surface and the core seat terminal surface of another half iron core respectively and form closed magnetic circuit; the end surfaces of the magnetic core column and the magnetic core seat are mirror surface end surfaces, the left side and the right side of the lower end of the winding shaft are provided with a baffle plate, and the baffle plate and the inner side of the pin seat are integrally formed; the utility model discloses can increase the magnetic permeability of iron core, still can increase the safe distance of copper line winding.

Description

A kind of network transformer

Technical field:

The utility model relates to the transformer technology field, relates in particular to a kind of network transformer.

Background technology:

Along with the develop rapidly of electronic technology, be applied to the network of network magnetic device and obtained using widely.Under the overall situation that electronic technology is constantly reformed, be devoted to improve electronic product both at home and abroad, make electronic product more become miniaturization, complanation, functionalization and superior performanceization, this develops toward the direction of high electrical property and high reliability with regard to requiring network magnetic device such as network transformer etc.

At present, network transformer has been widely used in the communication network, and general lattice network device is equipped with network transformer.Existing network transformer, comprise coil holder, iron core, some copper cash and number of pins, coil holder comprises roll and is located at the pin seat of the left and right sides, roll lower end, roll and pin seat are one-body molded, pin is located on the pin seat, some copper cash windings form winding on roll, and copper cash is connected between the pin, and iron core plugs described roll and forms closed magnetic loop.The iron core permeability of this network transformer is lower, and the magnetic characteristic of network transformer is relatively poor, and the safe distance of its copper cash winding is not enough, and the phenomenon that often is short-circuited easily causes network transformer to damage and influences service quality.

The utility model content:

The purpose of this utility model is at the deficiencies in the prior art, and a kind of network transformer is provided, and can increase the permeability of iron core, improve the magnetic characteristic of network transformer, also can increase the safe distance of copper cash winding, avoid the phenomenon that is short-circuited, improve the service quality of network transformer.

For achieving the above object, the utility model is achieved through the following technical solutions: a kind of network transformer, comprise coil holder, iron core, some copper cash and number of pins, described coil holder comprises roll and is located at the pin seat of the left and right sides, roll lower end, roll and pin seat are one-body molded, pin is located on the pin seat, some copper cash windings form winding on roll, and copper cash is connected between the pin, described iron core comprises half iron core of two symmetrical configuration, half iron core comprises integrated core post and magnetic core seat, the core post of two and half iron cores is inserted roll respectively from the coil holder left and right sides, and the core post end face of one and half iron cores and magnetic core seat end face are fitted with the core post end face of another half iron core and magnetic core seat end face respectively and formed closed magnetic loop; Described core post end face and magnetic core seat end face are the minute surface end face, and the left and right sides, described roll lower end is provided with catch, and catch and pin seat inboard are one-body molded.

Described two half iron core periphery bags that fit together are provided with fixation adhesive tape.

The joint point of two and half iron cores and coil holder is established fixing glue.

The pin seat on coil holder right side is provided with eight pins, eight pins are followed successively by first pin, second pin, the 3rd pin, the 4th pin, the 5th pin, the 6th pin, the 7th pin and the 8th pin from bottom to up, wherein first pin, second pin, the 3rd pin and the 4th pin are formed the TX output, and the 5th pin, the 6th pin, the 7th pin and the 8th pin are formed the RX output; The pin seat in coil holder left side is provided with four pins and forms the Line input, and four pins are followed successively by the 9th pin, the 11 pin, the 14 pin and the 16 pin from top to bottom; Between first pin and the 3rd pin, between second pin and the 4th pin, between the 5th pin and the 7th pin, between the 6th pin and the 8th pin, between the 9th pin and the 14 pin, connect with different copper cash respectively between the 11 pin and the 16 pin.

The winding periphery bag that the copper cash of winding on roll forms is provided with adhesive tape.

Described pin is the bending pin.

The utility model beneficial effect is: a kind of network transformer described in the utility model, its iron core comprises half iron core of two symmetrical configuration, half iron core comprises integrated core post and magnetic core seat, the core post of two and half iron cores is inserted roll respectively from the coil holder left and right sides, and the core post end face of one and half iron cores and magnetic core seat end face are fitted with the core post end face of another half iron core and magnetic core seat end face respectively and are formed closed magnetic loop, core post end face and magnetic core seat end face are the minute surface end face, the left and right sides, described roll lower end is provided with catch, and catch and pin seat inboard are one-body molded; Adopt the iron core of said structure, because its core post end face and magnetic core seat end face are the minute surface end face, can effectively increase the permeability of iron core, thereby improve the magnetic characteristic of network transformer, and catch can increase the distance between copper cash winding and the pin, promptly increase the safe distance of copper cash winding, avoid the phenomenon that is short-circuited, improve the service quality of network transformer.

Description of drawings:

Fig. 1 is a decomposing schematic representation of the present utility model;

Fig. 2 is a structural representation of the present utility model;

Fig. 3 is a polycrystalline substance schematic diagram of the present utility model;

Fig. 4 is the structural representation of the utility model half iron core;

Fig. 5 is an elementary diagram of the present utility model.

Embodiment:

Below in conjunction with accompanying drawing the utility model is further described:

Extremely shown in Figure 5 as Fig. 1, a kind of network transformer, comprise coil holder 22, iron core 23, some copper cash 25 and number of pins 21, described coil holder 22 comprises roll 221 and is located at the pin seat 222 of the left and right sides, roll 221 lower end, roll 221 and pin seat 222 are one-body molded, pin 21 is located on the pin seat 222, some copper cash 25 windings form winding on roll 221, and copper cash 25 is connected between the pin 21, described iron core 23 comprises half iron core 24 of two symmetrical configuration, half iron core 24 comprises integrated core post 242 and magnetic core seat 241, the core post 242 of two and half iron cores 24 is inserted roll 221 respectively from coil holder 22 left and right sides, and core post 242 end faces of one and half iron cores 24 and magnetic core seat 241 end faces are fitted with core post 242 end faces of another half iron core 24 and magnetic core seat 241 end faces respectively and formed closed magnetic loop; Described core post 242 end faces and magnetic core seat 241 end faces are the minute surface end face, can effectively increase the permeability of iron core 23, thereby improve the magnetic characteristic of network transformer; The left and right sides, described roll 221 lower end is provided with catch 223, and catch 223 is inboard one-body molded with pin seat 222, can increase the safe distance of copper cash 25 windings, avoids the phenomenon that is short-circuited, and improves the service quality of network transformer.

Described two half iron core, 24 periphery bags that fit together are provided with yellow fixation adhesive tape, and in two and half iron cores 24,4 fixing glue of joint point with coil holder 22, baking is fixing more then, and fixing glue is an EPOXY glue.

The pin seat 222 on coil holder 22 right sides is provided with eight pins 21, eight pins 21 are followed successively by first pin 1, second pin 2, the 3rd pin 3, the 4th pin 4, the 5th pin 5, the 6th pin 6, the 7th pin 7 and the 8th pin 8 from bottom to up, wherein first pin 1, second pin 2, the 3rd pin 3 and the 4th pin 4 are formed the TX output, and the 5th pin 5, the 6th pin 6, the 7th pin 7 and the 8th pin 8 are formed the RX output; The pin seat 222 in coil holder 22 left sides is provided with four pins 21 and forms the Line input, and four pins 21 are followed successively by the 9th pin the 9, the 11 pin the 11, the 14 pin 14 and the 16 pin 16 from top to bottom; Between first pin 1 and the 3rd pin 3, between second pin 2 and the 4th pin 4, between the 5th pin 5 and the 7th pin 7, between the 6th pin 6 and the 8th pin 8, between the 9th pin 9 and the 14 pin 14, connect with different copper cash 25 respectively between the 11 pin 11 and the 16 pin 16.Not behind six windings of copper cash 25 coileds in collinear footpath, wrap in the winding periphery with yellow ML adhesive tape and to protect, strengthen the compressive resistance of winding.

The operation principle of network transformer described in the utility model is, when when Line input winding is imported certain voltage-frequency signal, core post 242 and magnetic core seat 241 become closed magnetic loop, and the electromagnetic field of generation alternation is the inductance signal in the coil of TX output and RX output, and the size of the inductance signal of gained is directly proportional with the coil turn of TX output and RX output.

Network transformer described in the utility model is mainly used in ADSL modem, switch, computer main board etc., cooperates general communication network circuit to carry out signal transmission and filtering.Its antijamming capability is good, the impedance height, and leakage field is little, and loss is low, and is applied widely.

The above only is preferred embodiment of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.

Claims

1. A network transformer, comprising a wire frame (22), an iron core (23), some copper wires (25) and some pins (21), the wire frame (22) includes a winding shaft (221) and is located on The pin bases (222) on the left and right sides of the lower end of the bobbin (221), the bobbin (221) and the pin base (222) are integrally formed, the pins (21) are located on the pin base (222), and some copper wires (25) Winding is formed on the winding shaft (221), and the copper wire (25) is connected between the pins (21), and it is characterized in that: the iron core (23) includes two semi-iron with symmetrical structure Core (24), half-iron core (24) comprises integrally formed magnetic core post (242) and magnetic core seat (241), and the magnetic core post (242) of two half-iron cores (24) respectively from bobbin (22) ) the left and right sides are inserted into the winding shaft (221), and the end face of the magnetic core post (242) and the end face of the magnetic core seat (241) of one and a half iron cores (24) are respectively connected with the magnetic core post (241) of the other half iron core (24) 242) and the end face of the magnetic core seat (241) are bonded to form a closed magnetic circuit; the end faces of the magnetic core column (242) and the magnetic core seat (241) are both mirror end faces, and the left and right sides of the lower end of the winding shaft (221) A blocking piece (223) is provided on the side, and the blocking piece (223) is integrally formed with the inner side of the pin seat (222).

2. A network transformer according to claim 1, characterized in that: the outer circumference of the two bonded half iron cores (24) is covered with a fixing tape.

3. A network transformer according to claim 2, characterized in that: glue is applied at the junction of the two half iron cores (24) and the wire frame (22).

4. A network transformer according to claim 1, characterized in that: eight pins (21) are provided on the pin seat (222) on the right side of the wire frame (22), and eight pins (21) From bottom to top are the first pin (1), the second pin (2), the third pin (3), the fourth pin (4), the fifth pin (5), the sixth pin ( 6), the seventh pin (7) and the eighth pin (8), wherein the first pin (1), the second pin (2), the third pin (3) and the fourth pin (4 ) form the TX output end, the fifth pin (5), the sixth pin (6), the seventh pin (7) and the eighth pin (8) form the RX output end; The pin seat (222) is provided with four pins (21) to form the Line input terminal, and the four pins (21) are the ninth pin (9) and the eleventh pin (11) from top to bottom , the fourteenth pin (14) and the sixteenth pin (16); between the first pin (1) and the third pin (3), between the second pin (2) and the fourth pin ( 4), between the fifth pin (5) and the seventh pin (7), between the sixth pin (6) and the eighth pin (8), between the ninth pin (9) and the The fourteen pins (14), the eleventh pin (11) and the sixteenth pin (16) are respectively connected with different copper wires (25).

5. A network transformer according to claim 4, characterized in that: the outer circumference of the winding formed by winding the copper wire (25) on the winding shaft (221) is covered with an adhesive tape.

6. A network transformer according to any one of claims 1 to 5, characterized in that the pins (21) are bent pins.