CN220455408U - Mutual inductor structure of leakage protector - Google Patents

Abstract

The utility model provides a mutual inductor structure of a leakage protector, which comprises: the transformer body is provided with two first slots which are arranged on the same side in the width direction and along the Z-axis direction of the transformer body, and a second slot which is arranged on one side in the length direction and along the X-axis direction of the transformer body; the two ends of the test wire are respectively provided with a test contact pin which is in adaptive connection with the circuit board jack, the test wire is provided with a first section which is penetrated in the through hole in the middle of the transformer body, and a second section and a third section which extend outwards from two sides of the through hole in the middle, the second section is sequentially bent and fixed along the second slot and the first slot, and the third section is fixed along the first slot. The position of the test wire can be limited, the wiring is clear, and after the test wire and the transformer body form a whole, the two ends of the test wire are respectively provided with the test pins which are matched and spliced with the jacks of the circuit board, so that the automatic assembly of the transformer body and the circuit board is facilitated, and the production efficiency is greatly improved.

Description

Mutual inductor structure of leakage protector

Technical Field

The utility model relates to the technical field of leakage protectors, in particular to a transformer structure of a leakage protector.

Background

The leakage protector is characterized in that when equipment has leakage faults, the current transformer can detect leakage current in a loop, and then voltage is output to the electromagnetic release through the control circuit board after setting of the control circuit board, so that the circuit is disconnected in time, and the equipment and personal safety are guaranteed.

When the existing leakage protector is assembled, a test wire and two load wires penetrate through a middle through hole of a transformer, the test wire is a flexible wire, after insulating paint covers are removed from two ends of the test wire, a bare metal part is welded and fixed with a circuit board manually, and then the whole assembly formed by the transformer and the circuit board is installed in a shell manually, so that the assembly is complex, and the defect of low assembly efficiency exists; in addition, because the lines are relatively more, the defects of messy wiring, inconvenient installation and later maintenance exist.

Disclosure of Invention

Therefore, the utility model aims to overcome the defects of complex assembly and high production cost of the mutual inductor and the circuit board in the prior art, thereby providing the mutual inductor structure of the leakage protector with simple assembly and low production cost.

The utility model provides a mutual inductor structure of a leakage protector, which comprises a mutual inductor body and a test wire, wherein the mutual inductor body is provided with two first slots which are arranged on the same side in the width direction and along the Z-axis direction of the mutual inductor body, and a second slot which is arranged on one side in the length direction and along the X-axis direction of the mutual inductor body; the two ends of the test wire are respectively provided with a test contact pin which is in adaptive connection with the circuit board jack, the test wire is provided with a first section which penetrates through the middle through hole of the transformer body, a second section and a third section which extend outwards from two sides of the middle through hole, the second section is bent and fixed in sequence along the second slot and the first slot, and the third section is fixed along the first slot.

The transformer body is further provided with a third slot which is positioned between the first slot and the second slot and arranged along the Y-axis direction of the transformer body, and the third slot is suitable for fixing the second section.

Two load wires are further arranged in the middle through hole of the transformer body in a penetrating mode, and two ends of each load wire are suitable for being fixed with the circuit board.

The middle through hole of the transformer body is provided with a partition board, and the test wire and the two load wires are all positioned in the same cavity separated by the partition board.

And a fourth slot which extends along the Y-axis direction and is suitable for fixing the load lead is arranged on the side wall of the transformer body.

The transformer body is provided with a transformer coil and coil pins which are respectively arranged at two ends of the transformer coil and are suitable for being connected with the circuit board.

The two coil pins and the two test pins are respectively positioned at two sides of the width direction of the transformer body.

The technical scheme of the utility model has the following advantages:

1. according to the transformer structure provided by the utility model, when the test wire is assembled, the first section of the test wire passes through the middle through hole of the transformer body, the second section is sequentially bent and fixed along the second slot and the first slot, the third section is fixed along the first slot, so that the position of the test wire can be limited, the wiring is clear, and after the test wire and the transformer body form a whole, the two ends of the test wire are respectively provided with the test pins which are matched and inserted with the circuit board jacks, thereby being beneficial to the automatic assembly of the transformer body and the circuit board and greatly improving the production efficiency.

2. According to the transformer structure provided by the utility model, the partition plate is arranged at the middle through hole of the transformer body, the test wire and the two load wires are both positioned in the same cavity separated by the partition plate, and the partition plate can play a role in positioning the test wire and the two load wires.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is an assembly schematic diagram of a transformer and a circuit board of the present utility model;

fig. 2 is a schematic diagram illustrating the separation of the transformer and the circuit board;

fig. 3 is a perspective view of a transformer;

fig. 4 is a perspective view of the transformer body;

fig. 5 is a perspective view of a test wire and a load wire.

Reference numerals illustrate: 1. a first slot; 2. a second slot; 3. a transformer body; 4. testing the wire; 5. a circuit board; 6. a test pin; 7. a middle through hole; 8. a first section; 9. a second section; 10. a third section; 11. a third slot; 12. a load wire; 13. a partition plate; 14. a fourth slot; 15. coil pins.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

Examples

The present embodiment provides a transformer structure of a leakage protector, as shown in fig. 1 and 2, including a transformer body 3, a test wire 4, two load wires 12, and a transformer coil.

As shown in fig. 3 and 5, two ends of the test wire 4 are respectively provided with a test pin 6 which is in plug connection with the jack of the circuit board 5, and in this embodiment, the test pin 6 is riveted and fixed with two ends of the test wire 4. The test wire 4 is provided with a first section 8 penetrating through the middle through hole 7 of the transformer body 3, and a second section 9 and a third section 10 extending outwards from two sides of the middle through hole 7.

And two load wires 12 are arranged at the middle through hole 7 of the transformer body 3 in a penetrating way, and two ends of the load wires 12 are suitable for being fixed with the circuit board 5.

The transformer body 3, as shown in fig. 4, has two first slots 1 that locate its width direction same side and set up along the Z-axis direction of transformer body 3, locates its length direction one side and set up along the X-axis direction of transformer body 3, and is located between first slot 1 and second slot 2, and along the third slot 11 that the Y-axis direction of transformer body 3 set up, as shown in fig. 3, second section 9 is followed second slot 2, third slot 11 with first slot 1 is buckled in proper order fixedly, third section 10 is followed first slot 1 is fixed. The side wall of the transformer body 3 is provided with a fourth slot 14 extending along the Y-axis direction and suitable for fixing the load wire 12, the middle through hole 7 of the transformer body 3 is provided with a baffle 13, and the test wire 4 and the two load wires 12 are both positioned in the same cavity separated by the baffle 13.

The transformer coil is disposed in the transformer body 3, and two ends of the transformer coil are provided with coil pins 15 connected to the circuit board 5, in this embodiment, as shown in fig. 2 and 3, two of the coil pins 15 and two of the test pins 6 are respectively located at two sides of the transformer body 3 in the width direction. In this embodiment, the positions of the two coil pins 15 and the two test pins 6 are four corners of an isosceles trapezoid, so that the transformer and the circuit board can play a foolproof role in assembly, and no error is caused.

According to the transformer structure provided by the utility model, when the test wire 4 is assembled, the first section 8 of the test wire 4 passes through the middle through hole 7 of the transformer body 3, the second section 9 is sequentially bent and fixed along the second slot 2 and the first slot 1, and the third section 10 is fixed along the first slot 1, so that the position of the test wire 4 can be limited, the wiring is clear, and after the test wire 4 and the transformer body 3 form a whole, the two ends of the test wire 4 are respectively provided with the test pins 6 which are matched and spliced with the jacks of the circuit board 5, thereby being beneficial to the automatic assembly of the transformer body 3 and the circuit board 5 and greatly improving the production efficiency.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims (7)

1. A transformer structure of an earth leakage protector, comprising:

the transformer body (3) is provided with two first slots (1) which are arranged on the same side in the width direction and along the Z-axis direction of the transformer body (3), and a second slot (2) which is arranged on one side in the length direction and along the X-axis direction of the transformer body (3);

the testing wire (4), its both ends are equipped with respectively with circuit board (5) jack adaptation grafting test contact pin (6), testing wire (4) have wear to locate first section (8) in mutual-inductor body (3) middle part through-hole (7), and follow second section (9) and third section (10) that middle part through-hole (7) both sides outwards extend, second section (9) are followed second slot (2) with first slot (1) buckle in proper order fixedly, third section (10) are followed first slot (1) is fixed.

2. The transformer structure of the earth leakage protector according to claim 1, characterized in that a third slot (11) is further provided on the transformer body (3) between the first slot (1) and the second slot (2) and arranged along the Y-axis direction of the transformer body (3), the third slot (11) being adapted to fix the second section (9).

3. The transformer structure of the earth leakage protector according to claim 1 or 2, characterized in that two load wires (12) are further arranged in the middle through hole (7) of the transformer body (3) in a penetrating way, and two ends of the load wires (12) are suitable for being fixed with the circuit board (5).

4. A transformer structure of a leakage protector according to claim 3, characterized in that a partition (13) is provided at the central through hole (7) of the transformer body (3), and the test wire (4) and the two load wires (12) are both located in the same chamber separated by the partition (13).

5. A transformer arrangement of a leakage protector according to claim 3, characterized in that the side wall of the transformer body (3) is provided with a fourth slot (14) extending in the Y-axis direction thereof adapted to fix the load conductor (12).

6. The transformer structure of the earth leakage protector according to claim 1, characterized in that the transformer body (3) is provided with a transformer coil and coil pins (15) which are respectively arranged at two ends of the transformer coil and are suitable for being connected with the circuit board (5).

7. The transformer structure of the earth leakage protector according to claim 6, characterized in that two of the coil pins (15) and two of the test pins (6) are located on both sides of the transformer body (3) in the width direction, respectively.