Transformer module of integrated unit

Abstract

The utility model discloses a transformer module of an integrated unit, which comprises an inner iron core and an outer iron core, the outer iron core is coaxially sleeved on the outer side of the inner iron core, and the inner iron core and the outer iron core are spliced to form a closed whole iron core; an annular winding space is formed between the inner iron core and the outer iron core, a coil is wound in the winding space, one end of the inner iron core is fixedly connected with a supporting base, and a plurality of pins are arranged on the two symmetrical side faces of the supporting base respectively. The two sides, corresponding to the pins, of the closed whole iron core are respectively provided with a wiring lead-out port. The utility model solves the problem that the structural size of a common transformer cannot meet the application requirements of integrated high-voltage elements.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer skeleton structures, in particular to a transformer module with an integrated unit. Background Art

[0002] Common transformers are composed of a skeleton structure wound with coils and an iron core. The iron core part is formed by laminating mutually insulated laminations, and a special fastening structure is required to clamp and fix it to ensure the functionality of the iron core. However, this also causes the overall structure of the transformer to occupy a large space and is difficult to be applied as a microelectronic component to an integrated high-voltage unit, such as being applied to a chip that needs to integrate a transformer. Therefore, it is necessary to provide a compact transformer module that can be applied to a high-voltage unit. Summary of the Invention

[0003] Object of the Invention: In order to overcome the deficiencies in the prior art, the utility model provides a transformer module with an integrated unit, which solves the problem that the structural dimensions of common transformers cannot meet the application requirements of integrated high-voltage components.

[0004] Technical Solution: To achieve the above object, a transformer module with an integrated unit of the utility model includes an inner iron core and an outer iron core. The outer iron core is coaxially sleeved outside the inner iron core, and the inner iron core and the outer iron core are spliced to form a closed integral iron core; an annular winding space is formed between the inner iron core and the outer iron core, and a coil is wound in the winding space. One end of the inner iron core is fixedly connected with a support base, and a plurality of pins are respectively arranged on two symmetrical side surfaces of the support base. Wiring lead-out ports are respectively arranged on both sides of the closed integral iron core corresponding to the pins.

[0005] Further, the inner iron core includes a winding part in the middle, a small splicing disk at the upper end, and a large splicing disk at the lower end. The outer iron core is sleeved outside the winding part and the small splicing disk, and the inner circular surface of the outer iron core is arranged in contact with the outer circular surface of the small splicing disk; an embedding groove is arranged on the lower end surface of the outer iron core, and the large splicing disk is tightly fitted and embedded in the embedding groove.

[0006] Further, the outer iron core is embedded in a housing and is in contact with the inner wall of the housing. The housing covers the outside of the closed integral iron core, and the port of the housing is fastened and clamped with the support base.

[0007] Further, an elastic gasket is provided between the inner wall of the housing and the upper end surface of the closed integral iron core.

[0008] Further, the support base is fixedly bonded to the bottom side end surface of the large splicing disk.

[0009] Further, a bonding groove is arranged on the bonding surface of the support base for filling a bonding agent.

[0010] Beneficial effects: The transformer module of an integrated unit of the present utility model is composed of an inner iron core and an outer iron core spliced together to form a complete closed iron core. The coil is directly wound on the inner iron core, eliminating the common winding skeleton part, forming a compact transformer module. The iron core part is constrained by the cooperation of the cover structure and the support base, replacing the common complex iron core fastening structure, realizing the fixation of the iron core, further making the overall transformer structure compact, and enabling its external dimensions to meet the application requirements of integrated high-voltage components. Description of the Drawings

[0011] Figure 1 It is a schematic cross-sectional structure diagram of an embodiment of the present utility model;

[0012] Figure 2 It is a three-dimensional view of the overall structure of an embodiment of the present utility model. Detailed Embodiment

[0013] The present utility model will be further described below with reference to the drawings.

[0014] As Figure 1-2 The transformer module of an integrated unit as described above includes an inner iron core 1 and an outer iron core 2. The outer iron core 2 is coaxially sleeved outside the inner iron core 1. The inner iron core 1 and the outer iron core 2 are spliced to form a closed integral iron core; an annular winding space 3 is formed between the inner iron core 1 and the outer iron core 2, and a coil 4 is wound in the winding space 3. One end of the inner iron core 1 is fixedly connected to a support base 5. A plurality of pins 6 are respectively arranged on two symmetrical side surfaces of the support base 5. Wiring lead-out ports 7 are respectively arranged on both sides of the closed integral iron core corresponding to the pins 6.

[0015] This solution can be applied to high-voltage units such as integrated chips and used as a high-voltage transformer module required in the circuit. By directly winding the coil relative to the iron core, the occupied volume of the skeleton structure is eliminated, making the overall structure more compact. Among them, the inner iron core and the outer iron core are pre-laminated and processed into an integral core structure. A complete closed iron core is formed by the inner and outer iron cores, which is convenient for the winding of the coil and ensures the relative structural relationship between the coil and the iron core to realize its transformer function. The support base is used to connect the iron core part and the pin part and is also used as a support between the transformer and the circuit board. During the processing of this transformer, first fixedly connect the inner iron core and the support base, then wind the coil, including winding relative to the pins, and finally sleeved the outer iron core outside the inner iron core and the coil. The overall structure is simple and reliable, which not only meets the functional requirements of the transformer but also saves the overall volume and is more suitable for use in micro high-voltage units such as integrated chips.

[0016] The inner iron core 1 includes a winding part 11 in the middle, a small splicing disc 12 at the upper end, and a large splicing disc 13 at the lower end. The outer iron core 2 is sleeved outside the winding part 11 and the small splicing disc 12, and the inner circular surface of the outer iron core 2 is arranged in contact with the outer circular surface of the small splicing disc 12; an embedding groove is arranged on the lower end surface of the outer iron core 2, and the large splicing disc 13 is fitted and embedded into the embedding groove. Among them, the winding part is used for winding the coil, so that the relative position relationship between the coil and the inner iron core is determined. Through the fitting cooperation between the small splicing disc and the outer iron core, the radial relative position relationship between the inner and outer iron cores is determined. Through the fitting cooperation between the large splicing disc and the outer iron core, the axial relative position relationship between the inner and outer iron cores is determined, so as to finally completely determine the relative position relationship between the overall closed iron core and the wound coil, ensuring the reliability of its function.

[0017] The outer iron core 2 is embedded in the housing 8 and is in contact with the inner wall of the housing 8. The housing 8 is sleeved outside the overall closed iron core, and the port of the housing 8 is buckled and clamped with the support base 5. The overall closed iron core is constrained and fixed by the housing. As a fixing structure of the iron core structure, it is simple and occupies little space, ensuring the integrity and closing degree of the iron core, ensuring its concentrating effect on the magnetic field, and further ensuring the compactness of its structure.

[0018] An elastic gasket is provided between the inner wall of the housing 8 and the upper end surface of the overall closed iron core. Among them, the inner side surface of the port of the housing and the outer side surface of the support base are connected by a common snap structure. Through the provided elastic gasket, when snapping, the housing and the iron core clamp the gasket, and the elastic restoring force of the gasket is used to further press the outer iron core and the inner iron core, and a certain buffer and shock absorption interval is provided in the housing to ensure the stability of the iron core structure.

[0019] The support base 5 is fixedly bonded to the bottom side end surface of the large splicing disc 13. The bonding surface of the support base 5 is provided with a bonding groove 51 for filling the adhesive. It can ensure that the constraint space formed between the housing and the support base just fits the overall closed iron core, avoid the adhesive occupying the internal space, and ensure the compactness and fitting accuracy of its interior.

[0020] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A transformer module of an integrated unit, characterized in that: The invention comprises an inner iron core (1) and an outer iron core (2), wherein the outer iron core (2) is coaxially sleeved on the outer side of the inner iron core (1), and the inner iron core (1) and the outer iron core (2) are spliced ​​to form a closed whole iron core; an annular winding space (3) is formed between the inner iron core (1) and the outer iron core (2), a coil (4) is wound in the winding space (3), one end of the inner iron core (1) is fixedly connected to a support base (5), two symmetrical side surfaces of the support base (5) are respectively provided with a plurality of pins (6), and the closed whole iron core is respectively provided with wiring lead-out ports (7) on both sides corresponding to the pins (6).

2. The transformer module of an integrated unit according to claim 1, characterized in that: The inner iron core (1) comprises a winding portion (11) in the middle, a small splicing disk (12) at the upper end and a large splicing disk (13) at the lower end; the outer iron core (2) is sleeved on the outer side of the winding portion (11) and the small splicing disk (12); the inner circumferential surface of the outer iron core (2) is arranged to fit the outer circumferential surface of the small splicing disk (12); the lower end surface of the outer iron core (2) is provided with an embedding groove, and the large splicing disk (13) is fit and embedded in the embedding groove.

3. The transformer module of an integrated unit according to claim 2, characterized in that: The outer iron core (2) is embedded in the cover shell (8) and fits with the inner wall of the cover shell (8); the cover shell (8) covers the outer side of the closed whole iron core; and the port of the cover shell (8) is fastened and clamped with the support base (5).

4. The transformer module of an integrated unit according to claim 3, characterized in that: An elastic gasket is provided between the inner wall of the cover shell (8) and the upper end surface of the closed integral iron core.

5. The transformer module of an integrated unit according to claim 4, characterized in that: The support base (5) is bonded and fixed to the bottom end surface of the large splicing plate (13).

6. The transformer module of an integrated unit according to claim 5, characterized in that: The bonding surface of the support base (5) is provided with a bonding groove (51) for filling with adhesive.

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