Multi-winding transformer structure

Abstract

The utility model provides a multi-winding transformer structure, which comprises a winding framework and at least two terminal seats, the main body of the winding framework is a substrate, the middle part of the substrate is provided with a magnetic core mounting hole for mounting a magnetic core, and the at least two terminal seats comprise a first terminal seat and a second terminal seat. The first terminal seat and the second terminal seat are arranged on the two sides of the substrate in the horizontal direction respectively, a first pin header is arranged on the first terminal seat, a second pin header is arranged on the second terminal seat, top pins of the first pin header and the second pin header are used for hanging winding taps, and bottom pins of the first pin header and the second pin header are used for being connected with an external circuit. The winding framework is manufactured through the substrate, the thickness of the substrate of the transformer can be adjusted according to the design specifications of the winding and the magnetic core, production cost is low, and production adjustment is facilitated. In addition, the thickness of the transformer can be reduced by enlarging the diameter of the magnetic core mounting hole and the magnetic core, and the transformer is more suitable for being mounted in a space with limited height.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a multi-winding transformer structure. Background Art

[0002] Multi-winding transformers can supply power to multiple electrical devices with different voltage requirements at the same time, and have the advantage of saving space. They are very suitable for power supply equipment such as energy storage batteries and various external power terminals.

[0003] Currently, the manufacturing cost of energy storage power supplies and their transformers is relatively high. Therefore, simplifying the manufacturing process while maintaining reliability and thereby reducing production costs is a goal that energy storage battery and transformer manufacturers are constantly pursuing. Utility Model Content

[0004] In view of the defects of the background technology, the utility model proposes a multi-winding transformer structure, which has a small size and a simple structure and can effectively reduce the production cost.

[0005] The utility model proposes a multi-winding transformer structure, comprising a winding skeleton and at least two terminal seats, the main body of the winding skeleton is a substrate, a magnetic core mounting hole for mounting a magnetic core is opened in the middle of the substrate, the at least two terminal seats include a first terminal seat and a second terminal seat, the first terminal seat and the second terminal seat are respectively arranged on both sides of the substrate in a horizontal direction, the first terminal seat is provided with a first row of needles, the second terminal seat is provided with a second row of needles, the top pins of the first row of needles and the second row of needles are used for hanging winding taps, and the bottom pins are used for connecting external circuits.

[0006] Preferably, the substrate is a PCB board.

[0007] Preferably, the first row of pins are straight row of pins, and the extension direction of the straight row of pins is perpendicular to the substrate.

[0008] Preferably, the second row of pins are straight row of pins, and the extension direction of the straight row of pins is perpendicular to the substrate.

[0009] Preferably, the first terminal seat is further provided with a third row of needles, and the arrangement direction of the third row of needles is the same as that of the first row of needles.

[0010] Preferably, the first row of pins is located between the magnetic core mounting hole and the third row of pins, the third row of pins is a right-angle pin row, the top pins of the third row of pins for hanging the winding taps extend away from one side of the magnetic core mounting hole, and the bottom pins of the third row of pins for connecting the external circuit extend in the same direction as the first row of pins.

[0011] Preferably, a row of groove arrays arranged in the same direction as the first row of needles and the third row of needles are arranged on the top of the first terminal seat;

[0012] Between two adjacent grooves constituting the groove array, one top pin of the first row of needles and one top pin of the third row of needles are arranged.

[0013] Preferably, the grooves constituting the groove array are arranged in parallel, and the extending direction of the grooves is perpendicular to the arrangement direction of the groove array.

[0014] Preferably, the first terminal seat and the second terminal seat are arranged relatively on the periphery of both sides of the magnetic core mounting hole.

[0015] The beneficial effects of the utility model include: the winding skeleton is made by the substrate, and the thickness of the substrate can be adjusted according to the design specifications of the winding and the magnetic core, which not only has a low production cost but also a fast production adjustment speed; the terminal seats are arranged at the radial periphery of the magnetic core mounting hole, and the thickness of the transformer can be reduced by expanding the diameter of the magnetic core mounting hole and the magnetic core, which is more suitable for installation and use in a space with limited height; the groove is only set when the terminal seat is provided with more than one row of pins, and the structure of the groove is simple, without redundant terminal seat appearance, which is convenient for the processing of the terminal seat and does not affect the tap winding of the winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is described in detail below with reference to the embodiments and drawings, wherein:

[0017] Figure 1 It is a three-dimensional diagram of the structure of the multi-winding transformer of the utility model.

[0018] Figure 2 It is a rear view of the multi-winding transformer structure of the utility model (viewed from the side of the first terminal seat).

[0019] Figure 3 It is a right side view of the multi-winding transformer structure of the utility model.

[0020] Figure 4 It is a top view of the multi-winding transformer structure of the utility model.

[0021] Reference numerals:

[0022] 1-winding skeleton, 2-substrate, 3-magnetic core mounting hole, 4-first terminal seat, 5-second terminal seat, 6-first row of needles, 7-second row of needles, 8-third row of needles, 9-groove array. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] Thus, a feature indicated in this specification will be used to illustrate one of the features of an embodiment of the utility model, rather than implying that each embodiment of the utility model must have the described feature. In addition, it should be noted that this specification describes many features. Although some features can be combined together to illustrate possible system designs, these features can also be used in other combinations that are not explicitly described. Thus, unless otherwise stated, the described combinations are not intended to be limiting.

[0025] The following is combined with Figure 1-4 The principles of the present invention are described in detail with reference to the accompanying drawings and embodiments.

[0026] The utility model proposes a multi-winding transformer structure, including a winding skeleton 1, a first terminal seat 4 and a second terminal seat 5. The main body of the winding skeleton 1 is a horizontally arranged substrate 2, a magnetic core mounting hole 3 is opened in the middle of the substrate 2, and a magnetic core (not shown in the attached drawings) is bonded and fixed in the magnetic core mounting hole 3. The first terminal seat 4 and the second terminal seat 5 are arranged on both sides of the horizontal direction of the substrate 2 and extend horizontally. The first terminal seat 4 is provided with a first row of pins 6, and the second terminal seat 5 is provided with a second row of pins 7. The top pins of the first row of pins 6 and the second row of pins 7 are used to hang winding taps, and the bottom pins are used to connect external circuits.

[0027] The winding skeleton is made by the substrate, and the thickness of the substrate can be adjusted according to the design specifications of the winding and the magnetic core. The substrate 2 of the present embodiment is a PCB board, and PCB plates of different thicknesses can be customized. For transformers of different design specifications, PCB plates of different thicknesses are cut and put into the production line. In addition, for magnetic cores with a larger axial length, the thickness can also be increased by stacking PCB plates. For the magnetic core mounting holes 3, they can be punched on the PCB board. Therefore, when using PCB as a substrate, it is only necessary to prepare PCB boards of common specifications, which not only reduces the procurement cost, but also makes the production adjustment very fast.

[0028] In this embodiment, the first terminal seat 4 and the second terminal seat 5 are relatively arranged at the periphery of both sides of the magnetic core mounting hole 3. According to actual needs, the directions of the first terminal seat 4 and the second terminal seat 5 can also be adjusted, and the number of terminal seats can be increased.

[0029] Since the terminal seats are arranged radially outside the core mounting hole 3, the thickness of the transformer can be reduced by enlarging the diameter of the core mounting hole and the core, making the transformer more suitable for installation and use in a space with limited height.

[0030] In this embodiment, vertical holes for installing pin headers are provided on the first terminal seat 4 and the second terminal seat 5. The first pin header 6 is a straight pin header, and the extension direction of the straight pin header is perpendicular to the substrate 2; the second pin header 7 is a straight pin header, and the extension direction of the straight pin header is perpendicular to the substrate 2.

[0031] The first terminal block 4 is also provided with a third row of pins 8, and the arrangement direction of the third row of pins 8 is the same as that of the first row of pins 6. The first row of pins 6 is located between the magnetic core mounting hole 3 and the third row of pins 8, and the third row of pins 8 is a right-angle pin row. The top pins of the third row of pins 8 for hanging the winding tap extend away from the side of the magnetic core mounting hole 3, and the bottom pins of the third row of pins 8 for connecting the external circuit extend in the same direction as the first row of pins 6.

[0032] In this embodiment, a row of groove arrays 9 arranged in the same direction as the first row of pins 6 and the third row of pins 8 is provided on the top of the first terminal seat 4, and one top pin of the first row of pins 6 and one top pin of the third row of pins 8 are provided between two adjacent grooves constituting the groove array 9. The grooves constituting the groove array 9 are arranged in parallel, and the extending direction of the grooves is perpendicular to the arrangement direction of the groove array 9.

[0033] The terminal block may be provided with only one row of pins, or may be provided with two or even more rows of pins. When only one row of pins is provided, the second terminal block 5 may not be provided with the groove array 9, which does not increase the difficulty of hanging the winding, but can effectively reduce the manufacturing cost of the terminal block. However, two sets of wires are provided on the first terminal block 4, and the winding is more dense, and the groove array 9 can help with the winding positioning. Compared with providing a protrusion array on the top of the terminal block to assist in the winding positioning, the groove array 9 uses less material and has a simpler shape, which can reduce the cost of the terminal block mold.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-winding transformer structure, comprising a winding frame and at least two terminal blocks, characterized in that: The main body of the winding skeleton is a substrate made of a PCB board, a magnetic core mounting hole for mounting a magnetic core is opened in the middle of the substrate, the at least two terminal seats include a first terminal seat and a second terminal seat, the first terminal seat and the second terminal seat are respectively arranged on both sides of the horizontal direction of the substrate, the first terminal seat is provided with a first row of needles, the second terminal seat is provided with a second row of needles, the top pins of the first row of needles and the second row of needles are used to hang the winding taps, and the bottom pins are used to connect the external circuit; The first terminal seat is also provided with a third row of needles, and the arrangement direction of the third row of needles is the same as that of the first row of needles; A row of groove arrays arranged in the same direction as the first row of needles and the third row of needles is arranged on the top of the first terminal seat.

2. The multi-winding transformer structure according to claim 1, characterized in that: The first row of pins is a straight row of pins, and an extending direction of the straight row of pins is perpendicular to the substrate.

3. The multi-winding transformer structure according to claim 1, characterized in that: The second row of pins is a straight row of pins, and an extending direction of the straight row of pins is perpendicular to the substrate.

4. The multi-winding transformer structure according to claim 3, characterized in that: The first row of needles is located between the magnetic core mounting hole and the third row of needles, the third row of needles is a right-angle row of needles, the top pins of the third row of needles used to hang the winding taps extend away from the side of the magnetic core mounting hole, and the bottom pins of the third row of needles used to connect the external circuit extend in the same direction as the first row of needles.

5. The multi-winding transformer structure according to claim 4, characterized in that: Between two adjacent grooves constituting the groove array, one top pin of the first row of needles and one top pin of the third row of needles are arranged.

6. The multi-winding transformer structure according to claim 5, characterized in that: The grooves constituting the groove array are arranged in parallel, and the extending direction of the grooves is perpendicular to the arrangement direction of the groove array.

7. The multi-winding transformer structure according to claim 1, characterized in that: The first terminal seat and the second terminal seat are arranged opposite to each other at the periphery of both sides of the magnetic core mounting hole.

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