CN209859784U

CN209859784U - Transformer framework and transformer thereof

Info

Publication number: CN209859784U
Application number: CN201921040237.7U
Authority: CN
Inventors: 汶兵录
Original assignee: Weihai Power Electric Co Ltd
Current assignee: Weihai Power Electric Co Ltd
Priority date: 2019-07-05
Filing date: 2019-07-05
Publication date: 2019-12-27
Anticipated expiration: 2029-07-05

Abstract

The utility model discloses a transformer skeleton and transformer thereof, include around primary coil groove and the secondary coil groove that the magnetic core jack set up on the skeleton of moulding plastics, around having primary coil in the primary coil groove, the skeleton collet of moulding plastics is provided with primary coil wiring contact pin, primary coil wiring contact pin is connected respectively to primary coil both ends connector lug, the secondary coil groove comprises the notch that a plurality of intervals set up, sets up the round wire in the many rings of wires of secondary coil in each notch respectively, the round wire is the ring-opening setting, and the both ends connector lug of round wire ring-opening stretches out the binding post that forms the round wire from the skeleton collet of moulding plastics, and the binding post of round wire is used for establishing ties its formation secondary coil when the installation. The utility model discloses simple structure has avoided skeleton coiling confined secondary coil simultaneously on primary coil, only needs coiling primary coil on the skeleton, then inserts open-ended copper ring, connects formation secondary coil on the circuit board at last, easily realizes the full-automatic coiling of coil.

Description

Transformer framework and transformer thereof

Technical Field

The utility model relates to a transformer skeleton and transformer thereof.

Background

With the rapid development of electronic technology, a small high-frequency inverter power supply is widely applied, wherein a micro high-frequency transformer is required to be used as the manufacturing of the transformer, a secondary coil needs to be wound on a primary coil of a transformer framework, the secondary coil needs to be wound in a closed loop mode and is relatively complex in full-automatic winding process due to small number of turns and thick wire diameter, therefore, an insulating sleeve needs to be sleeved on a lead of the secondary coil due to the requirement of safety regulations, at present, manual winding is mostly adopted, and the efficiency is low.

Disclosure of Invention

An object of the utility model is to provide a around transformer skeleton and transformer that has a secondary coil, avoided skeleton coiling confined secondary coil on primary coil simultaneously, only need coiling primary coil on the skeleton that contains open-loop secondary coil, easily realize the full-automatic coiling of coil.

In order to realize the purpose, the technical scheme of the utility model is that:

the utility model provides a transformer framework, includes and winds primary coil groove and secondary coil groove that the magnetic core jack set up on the skeleton of moulding plastics, winds in the primary coil groove and has become primary coil, and wherein, the skeleton collet of moulding plastics is provided with primary coil wiring contact pin, primary coil wiring contact pin is connected respectively to primary coil both ends connector lug, secondary coil groove comprises the notch that a plurality of intervals set up, sets up the round wire in the many rings of wire of secondary coil respectively in each notch, the round wire is the ring-opening setting, and the both ends connector lug of round wire ring-opening stretches out the binding post that forms the round wire from the skeleton collet of moulding plastics, and the binding post of round wire is used for establishing ties it when the installation and forms secondary coil.

The scheme is further as follows: the circle of conducting wire forms an integrated structure with the injection molding framework through injection molding.

The scheme is further as follows: the primary coil wiring contact pin sets up the both ends side at the skeleton collet of moulding plastics.

The scheme is further as follows: the primary coil grooves are arranged in a plurality of numbers, and the primary coil grooves are respectively arranged between the notches arranged at intervals.

The scheme is further as follows: the secondary coil groove includes the open slot that sets up and the closed groove that links up mutually with the open slot in the skeleton both sides of moulding plastics on the skeleton upper end side of moulding plastics, insert from the skeleton upper end open slot that moulds plastics after the round wire is bent, and the binding post that forms the round wire is worn out from the skeleton both sides closed groove of moulding plastics to the both ends end stub of round wire open-loop.

The transformer is positioned on a circuit board, wherein the transformer is provided with the transformer framework, a magnetic core is inserted into a magnetic core jack of the injection molding framework, a primary coil wiring contact pin on a support of the injection molding framework and a wiring terminal of each coil of wire are inserted into the circuit board, and the wiring terminal of each coil of wire is mutually connected in series on the circuit board through a printed circuit to form a secondary coil of a plurality of coils of wires.

The utility model has the advantages that: the structure is simple, the framework is avoided from simultaneously winding the closed secondary coil on the primary coil, only the primary coil needs to be wound on the framework and then inserted into the copper ring with the opening, and finally the secondary coil is formed by connecting the primary coil on the circuit board, so that the full-automatic winding of the coil is easy to realize.

The invention is described in detail below with reference to the figures and examples.

Drawings

FIG. 1 is a schematic diagram of a transformer bobbin structure wound with a secondary coil;

FIG. 2 is a schematic diagram of a transformer structure;

fig. 3 is a schematic diagram of the wiring of the secondary coil on the wiring board.

Detailed Description

Example 1:

the utility model provides a transformer skeleton around having a secondary coil, as shown in figure 1, transformer skeleton includes around the primary coil groove 102 and the secondary coil groove that magnetic core jack 101 set up on the skeleton 1 of moulding plastics, around having primary coil 2 in the primary coil groove, wherein, the skeleton collet 103 of moulding plastics is provided with primary coil wiring contact pin 3, primary coil wiring contact pin is connected respectively to primary coil both ends connector lug, the secondary coil groove comprises notch 104 that a plurality of intervals set up, and figure 1 has illustrated three notch 104, and its quantity is confirmed according to secondary coil's number of turns. A circle of wire 4 in the secondary coil multi-circle wires is arranged in each notch respectively, the circle of wire is arranged in an open loop mode, wire heads at two ends of the open loop of the circle of wire extend out of a bottom support of an injection molding framework to form a wiring terminal 5 of the circle of wire, and the wiring terminal of the circle of wire is used for being connected in series to form the secondary coil when the secondary coil is installed. The primary coil grooves are provided with a plurality of primary coil grooves, 4 primary coil grooves are illustrated in figure 1, the primary coil grooves are respectively arranged between the notches which are arranged at intervals, and the primary coil with the structure can be automatically wound through machinery. And the circle of conducting wire of the secondary coil forms an integral structure with the injection molding framework through injection molding, and can also be inserted after the injection molding framework is well formed. Wherein, as shown in fig. 1, notch 104 that a plurality of intervals of secondary coil groove set up includes the open slot that sets up on the skeleton upper end side of moulding plastics and the closed slot that links up mutually with the open slot in the skeleton both sides of moulding plastics, insert from the skeleton upper end side open slot that moulds plastics after the round wire is bent, the binding post that forms the round wire is worn out from the skeleton both sides closed slot that moulds plastics to the both ends stub of round wire open-loop.

In the examples: the primary coil wiring contact pins are arranged at two end sides of the injection molding framework bottom support, primary coil wiring ends wound at two sides are directly connected to the primary coil wiring contact pins at two end sides, and the wiring end of the intermediate wound primary coil is connected to the primary coil wiring contact pins at two end sides outside the injection molding framework bottom support in a cross-connection mode after the winding is completed.

Example 2:

a transformer based on embodiment 1 is a transformer positioned on a circuit board or is called a small high frequency transformer, and the transformer has a transformer bobbin wound with a secondary coil as described in embodiment 1. Therefore, embodiment 1's content should also regard as this embodiment content, and the transformer skeleton includes around the primary coil groove and the secondary coil groove that the magnetic core jack set up on the skeleton of moulding plastics, around having primary coil in the primary coil groove, wherein, the skeleton collet of moulding plastics is provided with primary coil wiring contact pin, primary coil wiring contact pin is connected respectively to primary coil both ends connector lug, the secondary coil groove comprises the notch that a plurality of intervals set up, sets up the round wire in the many rings of wire of secondary coil respectively in each notch, the round wire sets up for the ring-opening, and the both ends connector lug of round wire ring-opening stretches out the binding post that forms the round wire from the skeleton collet of moulding plastics, and the binding post of round wire is used for establishing ties it when the installation and forms secondary coil. As shown in fig. 2, a magnetic core 6 is inserted into a magnetic core jack of the injection molding framework, the magnetic core is composed of two symmetrical halves, a protective cover 7 is sleeved outside the magnetic core and the injection molding framework, a primary coil wiring pin on a support of the injection molding framework and a wiring terminal of each coil of wire are inserted into a circuit board 8, as shown in fig. 3, the wiring terminals of each coil of wire are connected in series with each other on the circuit board through a printed circuit 801 to form a secondary coil of a plurality of coils of wires.

Same as example 1: the primary coil grooves are arranged in a plurality of numbers, and the primary coil grooves are respectively arranged between the notches arranged at intervals. The secondary coil groove includes the open slot that sets up and the closed groove that links up mutually with the open slot in the skeleton both sides of moulding plastics on the skeleton upper end side of moulding plastics, insert from the skeleton upper end open slot that moulds plastics after the round wire is bent, and the binding post that forms the round wire is worn out from the skeleton both sides closed groove of moulding plastics to the both ends end stub of round wire open-loop.

Claims

1. The utility model provides a transformer framework, includes and winds primary coil groove and secondary coil groove that the magnetic core jack set up on the skeleton of moulding plastics, winds in the primary coil groove and has become primary coil, its characterized in that, and the skeleton collet of moulding plastics is provided with primary coil wiring contact pin, primary coil wiring contact pin is connected respectively to primary coil both ends connector lug, the secondary coil groove comprises the notch that a plurality of intervals set up, sets up the round wire in the many rings of wire of secondary coil respectively in each notch, the round wire is the ring-opening setting, and the both ends connector lug of round wire ring-opening stretches out the binding post that forms the round wire from the skeleton collet of moulding plastics, and the binding post of round wire is used for establishing ties it when the installation and forms secondary coil.

2. The transformer skeleton of claim 1, wherein the ring of wires is formed as a unitary structure with the injection molded skeleton by injection molding.

3. The transformer bobbin of claim 1, wherein the primary coil connection pins are disposed on both end sides of an injection molded bobbin base.

4. The bobbin of claim 1, wherein the primary coil slots are provided in plurality, the plurality of primary coil slots being respectively disposed between spaced apart notches.

5. The transformer framework of claim 1, wherein the secondary coil slot comprises an open slot formed in the upper end side of the injection molding framework and closed slots connected with the open slot on the two sides of the injection molding framework, the loop of the lead is bent and then inserted into the open slot on the upper end of the injection molding framework, and two ends of the loop of the lead penetrate out of the closed slots on the two sides of the injection molding framework to form a loop of the lead connecting terminal.

6. A transformer, which is a transformer positioned on a circuit board, characterized in that, the transformer is provided with the transformer framework of claim 1, a magnetic core is inserted into a magnetic core jack of an injection molding framework, a primary coil wiring pin on a bottom support of the injection molding framework and a wiring terminal of each coil of wire are inserted into the circuit board, and the wiring terminal of each coil of wire is mutually connected in series on the circuit board through a printed circuit to form a secondary coil of a plurality of coils of wires.

7. The transformer of claim 6, wherein the primary coil slots are provided in plurality, and the plurality of primary coil slots are respectively provided between the notches which are spaced apart.

8. The transformer according to claim 6, wherein the secondary coil slot comprises an open slot arranged on the upper end side of the injection molding framework and closed slots connected with the open slot on the two sides of the injection molding framework, the loop of the lead is inserted into the open slot on the upper end of the injection molding framework after being bent, and two ends of the loop of the lead penetrate out of the closed slots on the two sides of the injection molding framework to form a loop of the lead connecting terminal.