CN216117712U

CN216117712U - Current sensor shell

Info

Publication number: CN216117712U
Application number: CN202122368825.7U
Authority: CN
Inventors: 张洪瑞; 吴建安
Original assignee: Shenzhen Avadi Technology Co ltd
Current assignee: Shenzhen Avadi Technology Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-03-22
Anticipated expiration: 2031-09-28

Abstract

The utility model discloses a current sensor shell, which comprises a shell; the casing both sides all are equipped with the installing port that is used for installing the conducting strip, and casing one end opening for install U-shaped iron core, the other end of casing are connected with a fixed slot that is used for installing the chip, and the fixed slot includes chip socket and pin fixed slot, and the pin fixed slot includes a plurality of foot position grooves. According to the utility model, the fixing groove is connected to one end of the shell, so that the chip can be fixed in the chip socket, meanwhile, the pins can be clamped in the pin position grooves, and the chip is not required to be additionally arranged in the shell for installing the chip, so that the volume of the current sensor is reduced, the die sinking difficulty is reduced, the production cost is saved, and meanwhile, the chip can be more stably installed.

Description

Current sensor shell

Technical Field

The utility model relates to the technical field of current sensors, in particular to a current sensor shell.

Background

The current sensor is used for detecting the information of the current at the side to be detected, inherits the advantage of reliable insulation of the original secondary side of the transformer, solves the defects that the transmission transmitter is expensive and large in volume and needs to be matched with the transformer, provides an opportunity of analog-to-digital conversion for automatic management systems such as microcomputer detection and the like, and is widely applied. The current sensor shell is not specially provided with a magnetic induction element placing groove, so that the magnetic induction element is easy to deviate to cause inaccurate current test, the size of the current sensor shell is too large, and the die sinking cost is high.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a current sensor housing, which can solve the problems that the current sensor housing is not provided with a magnetic induction element placing groove specially, so that the magnetic induction element is easy to shift, which causes inaccurate current testing, too large volume and high mold opening cost.

In order to achieve the purpose, the technical scheme provided by the utility model is as follows: a current sensor housing comprising a housing; the casing both sides all are equipped with the installing port that is used for installing the conducting strip, and casing one end opening for install U-shaped iron core, the other end of casing are connected with a fixed slot that is used for installing the chip, and the fixed slot includes chip socket and pin fixed slot, and the pin fixed slot includes a plurality of foot position grooves.

In the current sensor shell, the shell further comprises a buckle, and the buckle is coplanar with one end of the shell opening.

The shell of the current sensor further comprises a fixing plate for fixing the U-shaped iron core, and two ends of the fixing plate respectively penetrate through the mounting openings on two sides of the shell.

In the current sensor shell, the fixing plate and the chip socket are on the same horizontal line.

In the current sensor shell, the fixing plate is hollow inside and is used for installing the conducting strip.

In a current sensor housing of the present invention, a fixing plate divides a housing into a first housing and a second housing, the first housing and the second housing being equal in size.

In the current sensor housing of the present invention, the housing is a plastic part.

In a current sensor housing of the present invention, the chip is a magnetic field detection element.

In a current sensor case of the present invention, the fixing groove is integrally formed with the case.

Through the technical scheme, the utility model has the beneficial effects that: according to the utility model, the fixing groove is connected to one end of the shell, so that the chip can be fixed in the chip socket, meanwhile, the pins can be clamped in the pin position grooves, and the chip is not required to be additionally arranged in the shell for installing the chip, so that the volume of the current sensor is reduced, the die sinking difficulty is reduced, the production cost is saved, and meanwhile, the chip can be more stably installed.

Drawings

FIG. 1 is a first schematic perspective view of an embodiment of the present invention;

FIG. 2 is a schematic perspective view of an embodiment of the present invention;

FIG. 3 is a schematic diagram of an explosion-proof structure of the installation of related components of an embodiment of the utility model;

fig. 4 is a schematic diagram of a related component mounting structure according to an embodiment of the present invention.

100. A housing; 110. buckling; 120. a fixing plate; 200. a conductive sheet; 300. a U-shaped iron core; 400. a chip; 500. fixing grooves; 510. a chip socket; 520. a pin securing slot.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, a current sensor housing according to the present invention will be described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1-4, a current sensor housing includes a housing 100; the two sides of the casing 100 are respectively provided with a mounting opening for mounting the conductive sheet 200, one end of the casing 100 is open for mounting the U-shaped iron core 300, the other end of the casing 100 is connected with a fixing groove 500 for mounting the chip 400, the fixing groove 500 comprises a chip socket 510 and a pin fixing groove 520, and the pin fixing groove 520 comprises a plurality of pin grooves.

It can be understood that, in the present application, an electromagnetic effect open-loop current sensor, a magnetic field (U-shaped iron core) perpendicular to the current direction of the conductive sheet 200 is applied to the chip 400, the carriers will deflect, an additional electric field will be generated in the direction perpendicular to the current and the magnetic field, the chip 400 contains a high-sensitivity semiconductor magnetoresistive element, the potential difference will be detected, when the small current passing through the semiconductor magnetoresistive element in the chip 400 is specified to be a fixed value, the potential difference is only related to the current relationship of the conductive sheet 200, so that the magnitude of the current value can be calculated. According to the utility model, the fixing groove is connected to one end of the shell 100, so that the chip 400 can be fixed in the chip socket 510, and meanwhile, the pins can be clamped in the pin position groove, and the pins and the chip 400 form 90 degrees, so that the space can be greatly saved. The chip 400 is mounted in the shell 100 without additionally arranging a clamping groove, so that the volume of the current sensor is reduced, the die sinking difficulty is reduced, the production cost is saved, and the chip 400 can be more stably mounted.

Referring to fig. 2, in the present embodiment, the housing 100 further includes a buckle 110, and the buckle 110 is coplanar with an open end of the housing 100. Further, when the iron core 300 was put into the casing 100, owing to received the effort of U-shaped iron core 300, buckle 110 can be recessed toward the casing 100 in, treat that the U-shaped iron core 300 puts into the casing 100 after completely, buckle 110 can pop out to casing 100 opening direction, blocked U-shaped iron core 300, prevented that U-shaped iron core 300 from dropping, had removed the inconvenience that needs beat the glue to the iron core among the current sensor. Preferably, the clip 110 is integrally formed with the housing 110.

Referring to fig. 2, in the present embodiment, the iron core further includes a fixing plate 120 for fixing the U-shaped iron core 300, two ends of the fixing plate 120 respectively penetrate through the mounting openings at two sides of the casing 100, and the U-shaped iron core 300 can be just clamped on the fixing plate 120, so as to be fixed.

Referring to fig. 3, in the present embodiment, the fixing plate 120 and the chip socket 510 are on the same horizontal line, so that the chip 400 is located just between the air gaps of the U-shaped iron core 300, and the induced magnetic field strength is more accurate.

Referring to fig. 4, in the present embodiment, the fixing plate 120 is hollow for installing the conducting strip 200, or the conducting strip 200 may be placed before injection molding, and directly poured, so that the conducting strip 200 is exactly in the middle of the U-shaped iron core 300 and perpendicular to the magnetic field direction. Preferably, the conductive sheet 200 is a copper bar.

Referring to fig. 2, in the embodiment, the fixing plate 120 divides the casing 100 into a first casing and a second casing, the first casing and the second casing are equal in size, so that two ends of the U-shaped iron core 300 are respectively installed in the first casing and the second casing, and the first casing and the second casing are equal in size, so that the overall size of the casing 100 can be minimized, the space is fully utilized, and the size of the product is greatly reduced.

In this embodiment, the housing 100 is a plastic member, which facilitates mold opening and production, and reduces production cost.

In this embodiment, the chip 400 is a magnetic field detection element, and it is understood that the magnetic field detection element can detect the change of the magnetic field intensity so as to further detect the current information, such as a high-sensitivity magnetoresistive device, a fluxgate probe, and the like.

Referring to fig. 1, in the present embodiment, the fixing groove 500 is integrally formed with the housing 100, so as to increase the production efficiency and save the production time and cost.

The utility model is not described in detail, but is well known to those skilled in the art.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A current sensor housing, comprising a housing (100);

casing (100) both sides all are equipped with the installing port that is used for installing conducting strip (200), casing (100) one end opening for install U-shaped iron core (300), the other end of casing (100) is connected with a fixed slot (500) that are used for installing chip (400), fixed slot (500) are including chip socket (510) and pin fixed slot (520), pin fixed slot (520) are including a plurality of foot position grooves.

2. A current sensor housing according to claim 1, further comprising a snap (110) on said housing (100), said snap (110) being coplanar with an open end of said housing (100).

3. The current sensor casing according to claim 1, further comprising a fixing plate (120) for fixing the U-shaped iron core (300), wherein two ends of the fixing plate (120) respectively penetrate through the mounting openings on two sides of the casing (100).

4. A current sensor housing according to claim 3, wherein said fixing plate (120) is level with said chip socket (510).

5. A current sensor housing according to claim 3, wherein said fixing plate (120) is hollow inside for mounting said conductive sheet (200).

6. A current sensor housing according to claim 3, wherein said fixing plate (120) divides the housing (100) into a first housing and a second housing, said first housing and said second housing being of equal size.

7. The current sensor housing according to claim 1, wherein the housing (100) is a plastic part.

8. A current sensor housing according to claim 1, wherein said chip (400) is a magnetic field sensing element.

9. A current sensor housing according to claim 1, wherein said holding groove (500) is integrally formed with said casing (100).