CN201397730Y - Network transformer for communication network - Google Patents

Abstract

The utility model relates to the technical field of transformers, especially, relate to a network transformer for communication network, including line frame, iron core, a plurality of copper lines and a plurality of pin, line frame includes spool and the pin seat of establishing in the spool lower extreme left and right sides, spool and pin seat integrated into one piece, and the pin is established on the pin seat, and a plurality of copper lines are around establishing on the spool and forming the winding, and copper line connection is between the pin, the iron core includes two half iron cores of structural symmetry, and half iron core includes integrated into one piece's core limb and core seat, and the core limb of two half iron cores inserts the spool from the line frame left and right sides respectively, and the core limb terminal surface and the core seat terminal surface laminating with the core limb terminal surface and the core seat terminal surface of another half iron core respectively form closed magnetic circuit; the end surfaces of the magnetic core column and the magnetic core seat are mirror surface end surfaces; the utility model discloses can increase the magnetic permeability of iron core, improve network transformer's magnetic characteristic.

Description

Network transformers for communication networks

Technical field:

The utility model relates to the technical field of transformers, in particular to a network transformer used in a communication network.

Background technique:

With the rapid development of electronic technology, network magnetic devices applied to the network have been widely used. In the environment of continuous innovation of electronic technology, domestic and foreign are committed to improving electronic products, making electronic products more miniaturized, planarized, functionalized and superior in performance, which requires network magnetic devices such as network transformers to have high electrical performance and high reliability direction.

At present, network transformers have been widely used in communication networks, and general network circuit devices are equipped with network transformers. The existing network transformer includes a wire frame, an iron core, a number of copper wires and a number of pins. The feet are arranged on the pin seat, a number of copper wires are wound on the winding shaft to form a winding, and the copper wires are connected between the pins, and the iron core is inserted into the winding shaft to form a closed magnetic circuit. The core magnetic permeability of this network transformer is low, and the magnetic characteristics of the network transformer are poor.

Utility model content:

The purpose of the utility model is to provide a network transformer for a communication network in view of the deficiencies of the prior art, which can increase the magnetic permeability of the iron core and improve the magnetic properties of the network transformer.

In order to achieve the above object, the utility model is realized through the following technical solutions: a network transformer for communication network, including a wire frame, an iron core, some copper wires and several pins, the wire frame includes a bobbin and is located at the lower end of the bobbin The pin bases on the left and right sides, the winding shaft and the pin base are integrally formed, the pins are arranged on the pin base, and a number of copper wires are wound on the winding shaft to form a winding, and the copper wires are connected between the pins. The iron core includes two half iron cores with symmetrical structures. The half iron cores include integrally formed magnetic core posts and magnetic core seats. The end face of the magnetic core post and the end face of the magnetic core seat of the iron core are respectively attached to the end face of the magnetic core post and the end face of the magnetic core seat of the other half iron core to form a closed magnetic circuit; the end face of the magnetic core post and the end face of the magnetic core seat are both mirror surfaces end face.

The outer peripheries of the two bonded half iron cores are covered with fixing tapes.

Glue is applied at the junction of the two half iron cores and the wire frame.

There are eight pins on the pin seat on the right side of the wire frame, and the eight pins are the first pin, the second pin, the third pin, the fourth pin, the fifth pin, The sixth pin, the seventh pin and the eighth pin, wherein the first pin, the second pin, the third pin and the fourth pin form the TX output terminal, the fifth pin, the sixth pin, The seventh pin and the eighth pin form the RX output terminal; there are four pins on the left side of the wire frame to form the Line input terminal, and the four pins are the ninth pin, the Eleventh pin, fourteenth pin and sixteenth pin; between the first pin and the third pin, between the second pin and the fourth pin, between the fifth pin and the seventh pin Between the sixth pin and the eighth pin, between the ninth pin and the fourteenth pin, between the eleventh pin and the sixteenth pin are respectively connected with different copper wires.

The outer circumference of the winding formed by the copper wire wound on the winding shaft is covered with an adhesive tape.

The pins are bent pins.

The beneficial effects of the utility model are as follows: the iron core of the network transformer described in the utility model includes two half-iron cores with symmetrical structures, the half-iron cores include an integrally formed magnetic core post and a magnetic core seat, and the magnetic cores of the two half-iron cores The core posts are respectively inserted into the winding shaft from the left and right sides of the bobbin, and the end face of the core post and the end face of the core seat of one half-iron core are respectively attached to the end face of the core post and the end face of the core seat of the other half-iron core to form a closed magnet. circuit, the end face of the magnetic core post and the end face of the magnetic core seat are all mirror end faces; the iron core with the above structure, because the end face of the magnetic core post and the end face of the magnetic core seat are both mirror end faces, can effectively increase the magnetic permeability of the iron core, thereby Improve the magnetic properties of network transformers.

Description of drawings:

Fig. 1 is the exploded schematic view of the utility model;

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

Fig. 3 is a schematic diagram of the bottom structure of the utility model;

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

Fig. 5 is the wiring diagram of the utility model.

Detailed ways:

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

As shown in Figures 1 to 5, a network transformer for a communication network includes a wire frame 22, an iron core 23, a number of copper wires 25 and a number of pins 21, and the wire frame 22 includes a bobbin 221 and is located on the bobbin The pin base 222 on the left and right sides of the lower end of 221, the bobbin 221 and the pin base 222 are integrally formed, the pin 21 is arranged on the pin base 222, and some copper wires 25 are wound on the bobbin 221 to form a winding, and the copper wire 25 is connected between the pins 21, the iron core 23 includes two half-iron cores 24 with symmetrical structure, and the half-iron core 24 includes an integrally formed magnetic core post 242 and a magnetic core seat 241, the two half-iron cores 24 The magnetic core post 242 is inserted into the bobbin 221 from the left and right sides of the bobbin holder 22 respectively, and the magnetic core post 242 end face and the magnetic core holder 241 end face of one half iron core 24 are respectively connected with the magnetic core post 242 end face and the magnetic core post 241 end face of the other half iron core 24. The end faces of the magnetic core holder 241 are bonded together to form a closed magnetic circuit; the end faces of the magnetic core post 242 and the magnetic core holder 241 are both mirror end faces, which can effectively increase the magnetic permeability of the iron core 23, thereby improving the magnetic characteristics of the network transformer.

The two half iron cores 24 that are bonded together are covered with yellow fixing tape, and then four dots of glue are applied at the junction of the two half iron cores 24 and the wire frame 22, and then baked and fixed. The glue is varnish water.

The pin seat 222 on the right side of the wire frame 22 is provided with eight pins 21, and the eight pins 21 are successively the first pin 1, the second pin 2, the third pin 3, and the fourth pin from bottom to top. Pin 4, fifth pin 5, sixth pin 6, seventh pin 7 and eighth pin 8, wherein first pin 1, second pin 2, third pin 3 and 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; Pin 21 forms the Line input terminal, and the four pins 21 are the ninth pin 9, the eleventh pin 11, the fourteenth pin 14 and the sixteenth pin 16 from top to bottom; 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 fourteenth pin 14, and between the eleventh pin 11 and the sixteenth pin 16 are connected with different copper wires 25 respectively. Copper wires 25 with different wire diameters are wound into six windings, and the outer circumference of the windings is covered with yellow ML tape to enhance the compressive strength of the windings.

The working principle of the network transformer described in the utility model is that when a certain voltage frequency signal is input to the winding at the Line input end, the magnetic core column 242 and the magnetic core seat 241 become a closed magnetic circuit, and the coils at the TX output end and the RX output end The alternating electromagnetic field is generated in the inductance signal, and the magnitude of the obtained inductance signal is proportional to the number of coil turns at the TX output terminal and the RX output terminal.

The network transformer described in the utility model can be applied to ADSL modems, switches, PCs, etc., and cooperates with general communication network circuits for signal transmission and filtering. It has good anti-interference ability, high impedance, small flux leakage, low loss and wide application range.

The above is only a preferred embodiment of the utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the utility model patent application scope are all included in the utility model patent application scope .

Claims (6)

1. A network transformer for a communication network, comprising a wire frame (22), an iron core (23), a number of copper wires (25) and a number of pins (21), and the wire frame (22) includes a winding shaft (221) With the pin base (222) that is located at the left and right sides of the lower end of the bobbin (221), the bobbin (221) and the pin base (222) are integrally formed, and the pin (21) is located on the pin base (222), Several copper wires (25) are wound on the bobbin (221) to form a winding, and the copper wires (25) are connected between the pins (21), and it is characterized in that: the iron core (23) includes two structurally symmetrical The half-iron core (24), the half-iron core (24) comprises the integrally formed magnetic core column (242) and the magnetic core seat (241), and the magnetic core column (242) of two half-iron cores (24) respectively from the wire The left and right sides of the frame (22) are inserted into the winding shaft (221), and the end face of the magnetic core column (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 (24) of the other half iron core (24). The end faces of the core post (242) and the magnetic core seat (241) are bonded together to form a closed magnetic circuit; the end faces of the magnetic core post (242) and the magnetic core seat (241) are mirror end faces. 2. The network transformer for communication network 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. The network transformer for communication network 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. The network transformer for communication network 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, the first pin (1), the second pin (2), the third pin (3), the fourth pin (4), the fifth pin (5), the sixth pin 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 The pin (4) forms the TX output terminal, and the fifth pin (5), the sixth pin (6), the seventh pin (7) and the eighth pin (8) form the RX output terminal; the wire frame (22) The pin seat (222) on the left 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 from top to bottom (11), the fourteenth pin (14) and the sixteenth pin (16); between the first pin (1) and the third pin (3), the second pin (2) and the fourth pin Between the pins (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 fourteenth pin (14), between the eleventh pin (11) and the sixteenth pin (16) are respectively connected with different copper wires (25). 5. The network transformer for communication network 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 adhesive tape. 6. The network transformer for a communication network according to any one of claims 1 to 5, characterized in that: the pins (21) are bent pins.

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