CN219201873U

CN219201873U - Packaged leakage current sensor structure

Info

Publication number: CN219201873U
Application number: CN202221569465.5U
Authority: CN
Inventors: 柳晓辉; 王秀
Original assignee: Yichang Ruici Technology Co ltd
Current assignee: Yichang Ruici Technology Co ltd
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2023-06-16
Anticipated expiration: 2032-06-22

Abstract

The packaged leakage current sensor structure comprises a base, a current detection device is arranged on the base, and a cover body is covered on the base and used for covering the current detection device; the current detection device comprises a magnetic ring and a plurality of carrier fluids, wherein the carrier fluids penetrate through the middle part of the magnetic ring, the two ends of the carrier fluids penetrate out of the bottom of the base, the magnetic ring is wound with a wire, and the wire is connected with the current detection circuit. The utility model provides a packaged leakage current sensor structure, which is characterized in that a magnetic ring, a carrier fluid and a PCB (printed circuit board) are entirely coated in a cover body, so that the reliability of the device is enhanced, each part is protected, and the volume is reduced.

Description

Packaged leakage current sensor structure

Technical Field

The utility model relates to the technical field of current detection, in particular to a packaged leakage current sensor structure.

Background

The leakage current sensor developed before in our company is a combined leakage current sensor disclosed in CN207232293U, and the PCB-mounted residual current sensor disclosed in CN213933996U, wherein the lead portions of the leakage current sensor are all arranged outside the sensor housing, and the lead portions of the leakage current sensor are exposed outside after the device is assembled, so that the firmness, reliability and durability are insufficient.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a packaged leakage current sensor structure, wherein the whole device is packaged in a shell to protect a wiring part and a detection part.

In order to solve the technical problems, the utility model adopts the following technical scheme: the packaged leakage current sensor structure comprises a base, a current detection device is arranged on the base, and a cover body is covered on the base and used for covering the current detection device;

the current detection device comprises a magnetic ring and a plurality of carrier fluids, wherein the carrier fluids penetrate through the middle part of the magnetic ring, the two ends of the carrier fluids penetrate out of the bottom of the base, the magnetic ring is wound with a wire, and the wire is connected with the current detection circuit.

Preferably, the base is also provided with a PCB circuit board, the winding on the magnetic ring is connected with a current detection circuit on the PCB circuit board, and the base is injection molded with a pin needle for connecting with the PCB circuit board.

Preferably, the device further comprises a framework for containing fluid, wherein the framework is sleeved in the magnetic ring, a plurality of mounting grooves are formed in the framework, and the current-carrying fluid is placed in the mounting grooves.

Preferably, the base is provided with a fence, and the PCB is placed in the fence.

Preferably, the front and rear sides of the enclosure are provided with vertical plates for installing the framework, the front and rear ends of the framework are provided with installation parts, and the bottoms of the installation parts are provided with installation grooves matched with the vertical plates.

Preferably, the enclosing of the two sides of the vertical plate is also provided with a baffle plate, and the baffle plate and the vertical plate separate the current carrying fluid.

The utility model provides a packaged leakage current sensor structure, which is characterized in that a magnetic ring, a carrier fluid and a PCB (printed circuit board) are entirely coated in a cover body, so that the reliability of the device is enhanced, each part is protected, and the volume is reduced.

Drawings

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the utility model after the cover is opened;

FIG. 3 is a schematic diagram of an explosive structure according to the present utility model;

fig. 4 is a schematic structural diagram of the package of the present utility model.

Detailed Description

As shown in fig. 1-3, a packaged leakage current sensor structure comprises a base 1, wherein a current detection device is arranged on the base 1, and the packaged leakage current sensor structure further comprises a cover body 2 which covers the base 1 and is used for covering the current detection device;

the current detection device comprises a magnetic ring 3 and a plurality of current carriers 4, wherein the current carriers 4 penetrate through the middle part of the magnetic ring 3, two ends of the current carriers penetrate out of the bottom of the base 1, a winding is wound on the magnetic ring 3, and the winding is connected with a current detection circuit.

Preferably, the base 1 is further provided with a PCB 5, the winding on the magnetic ring 3 is connected with a current detection circuit on the PCB 5, and the base 1 is injection molded with a pin 6 for connecting with the PCB 5.

Preferably, the device further comprises a framework 8 for installing the fluid 4, wherein the framework 8 is sleeved in the magnetic ring 3, a plurality of installation grooves 11 are formed in the framework 8, and the current-carrying fluid 4 is placed in the installation grooves 11.

Preferably, the base 1 is provided with a fence 7, and the pcb 5 is placed in the fence 7.

Preferably, the front and rear sides of the enclosure 7 are provided with vertical plates 9 for installing the framework 8, the front and rear ends of the framework 8 are provided with installing parts 10, and the bottom of the installing parts 10 is provided with installing grooves 11 matched with the vertical plates 9.

Preferably, the barriers 7 on two sides of the riser 9 are further provided with a partition plate 12, and the partition plate 12 and the riser 9 separate the current-carrying fluid.

When the device is used, the PCB, the framework, the magnetic core and the current-carrying body are assembled on the base, glue is applied to all the joints to fix the joints, the joints are assembled into a state shown in fig. 2, then the opening of the cover body 2 is upwards placed, glue is injected into the cover body 2, then the assembled base is placed into the cover body 2 in an inverted mode, so that the detection part is immersed into the glue to be packaged, and the state shown in fig. 4 is shown. The device is simple to assemble, firm and reliable, and low in die sinking cost.

The above embodiments are only preferred embodiments of the present utility model, and should not be construed as limiting the present utility model, and the scope of the present utility model should be defined by the claims, including the equivalents of the technical features in the claims. I.e., equivalent replacement modifications within the scope of this utility model are also within the scope of the utility model.

Claims

1. A packaged leakage current sensor structure is characterized in that: the device comprises a base (1), wherein a current detection device is arranged on the base (1), and the device further comprises a cover body (2) which covers the base (1) and is used for covering the current detection device;

the current detection device comprises a magnetic ring (3) and a plurality of carrier fluids (4), wherein the carrier fluids (4) penetrate through the middle of the magnetic ring (3), two ends of the carrier fluids penetrate out of the bottom of the base (1), a winding is wound on the magnetic ring (3), and the winding is connected with a current detection circuit.

2. The packaged leakage current sensor structure of claim 1, wherein: the base (1) is also provided with a PCB (printed circuit board) 5, a winding on the magnetic ring 3 is connected with a current detection circuit on the PCB 5, and a pin needle 6 used for being connected with the PCB 5 is injection-molded on the base (1).

3. A packaged leakage current sensor structure according to claim 1 or 2, wherein: the device also comprises a framework (8) for installing the fluid (4), wherein the framework (8) is sleeved in the magnetic ring (3), a plurality of mounting grooves (11) are formed in the framework (8), and the fluid (4) is placed in the mounting grooves (11).

4. A packaged leakage current sensor structure according to claim 3, wherein: the base (1) is provided with a surrounding baffle (7), and the PCB (5) is arranged in the surrounding baffle (7).

5. The packaged leakage current sensor structure of claim 4, wherein: the front side and the rear side of the enclosure (7) are provided with vertical plates (9) for installing the framework (8), the front end and the rear end of the framework (8) are provided with installation parts (10), and the bottom of the installation parts (10) is provided with installation grooves (11) matched with the vertical plates (9).

6. The packaged leakage current sensor structure of claim 5, wherein: and the barriers (7) on two sides of the vertical plate (9) are also provided with a partition plate (12), and the partition plate (12) and the vertical plate (9) separate the current carrying fluid.