A mounting base for a fluxgate current sensor and a fluxgate current sensor

Abstract

The utility model provides a mounting seat for magnetic flux gate current sensor, include: detection hole and the mounting cavity of surrounding detection hole, the mounting cavity installs the electromagnetic induction element of surrounding detection hole, is equipped with the plurality of conducting rods in the detection hole, and is equipped with the positioning portion in the detection hole, and the positioning portion is used for positioning the plurality of conducting rods respectively, the utility model discloses still proposes a kind of magnetic flux gate current sensor including above-mentioned mounting seat. The positioning portion is set in the detection hole in the scheme, and the plurality of conducting rods are positioned respectively, solve the problem that when insulating baffle is pressed into detection hole, interference occurs with conducting rod.

Description

Technical Field

[0001] This utility model belongs to the technical field of current sensor structure installation, and specifically relates to a mounting base for a fluxgate current sensor and a fluxgate current sensor. Background Technology

[0002] A fluxgate current sensor is a current sensor based on the Hall effect principle, used to measure the current flowing through a conductor. Compared to traditional current transformers, fluxgate current sensors have advantages such as high accuracy, fast response, and good insulation. However, in existing fluxgate current sensor mounting bases, the detection hole for mounting the conductive rod lacks a component to position the rod, making it impossible to determine the rod's height within the detection hole. This causes interference between the insulating baffle and the conductive rod when the baffle is inserted.

[0003] For example, in the patent document CN219998023U, which describes an integrated current transformer frame, there are three primary coils in the frame. However, only one of the primary coils can be positioned by the bottom surface of the hole. After the other two primary coils are inserted into the pin holes, their height inside the holes cannot be determined. They may be too close to the top of the hole or too close to the bottom of the hole. As a result, when frame two is fastened to frame one, the support of frame two may interfere with the other two primary coils. Utility Model Content

[0004] To address the aforementioned problems in the prior art, this application provides a mounting base for a fluxgate current sensor and a fluxgate current sensor, thereby resolving the aforementioned technical deficiencies.

[0005] According to a first aspect of this utility model, a mounting base for a fluxgate current sensor is provided, comprising: a detection hole and a mounting cavity surrounding the detection hole, wherein an electromagnetic induction element surrounding the detection hole is mounted in the mounting cavity, multiple conductive rods are inserted into the detection hole, and a positioning part is provided within the detection hole for positioning the multiple conductive rods respectively. Through this structural arrangement, the position of each conductive rod within the detection hole is precisely constrained.

[0006] In a specific embodiment, the positioning part includes an upper positioning part and a lower positioning part. The upper positioning part is disposed above the detection hole, and the lower positioning part is disposed below the detection hole. In this structural arrangement, the upper and lower positioning parts enable the conductive rods at different positions to be positioned in layers.

[0007] In a specific embodiment, the upper positioning part is a positioning hook, a positioning buckle, or a positioning gripper. In this structural configuration, the positioning hook is suitable for scenarios involving multiple vibrations and layered positioning of multiple conductive rods; the positioning buckle is suitable for scenarios requiring frequent maintenance or low-cost mass production; and the positioning gripper is suitable for scenarios involving high-precision detection or positioning of irregularly shaped conductive rods.

[0008] In a specific embodiment, the lower positioning part is a limiting baffle, which has an arc-shaped groove that matches the conductive rod. Through this structural design, the curvature of the arc-shaped groove constrains the lateral movement of the conductive rod; the thickness of the limiting baffle and the depth of the arc-shaped groove together limit the vertical sinking of the conductive rod, preventing displacement due to gravity.

[0009] In a specific embodiment, multiple conductive rods are respectively matched and operated with the upper positioning part and the lower positioning part. Through this structural arrangement, the multiple conductive rods achieve positioning by engaging with the upper positioning part or being installed on the lower positioning part.

[0010] In a specific embodiment, the total number of upper positioning parts and the number of arc-shaped grooves in the lower positioning parts are the same as the number of conductive rods. This structural arrangement matches the number of conductive rods to the number of positioning parts, ensuring each conductive rod has an independent positioning structure. This avoids potential interference when multiple conductive rods share a single positioning structure, thus improving positioning accuracy.

[0011] In a specific embodiment, the wall of the detection hole and the positioning part are integrally formed. In this structural design, integral forming can reduce connection points, thereby enhancing the mechanical strength of the overall structure and reducing breakage or deformation caused by vibration or external force; at the same time, integral forming can also reduce the number of parts, simplify assembly steps, improve production efficiency, and reduce costs.

[0012] In a specific embodiment, the mounting base for the fluxgate current sensor further includes elastic clips. These clips are located on the front and rear sides of the mounting base, respectively securing the front and rear ends of the conductive rods. This structural design, with the elastic clips securing the conductive rods on both sides, restricts the movement of the conductive rods in the front-to-back direction, improving overall stability and facilitating precise fixing of multiple conductive rods on the mounting base.

[0013] In practical implementation, the elastic buckle opening on the left side of the mounting base faces left, and the elastic buckle opening on the right side of the mounting base faces right. This structural design facilitates the assembly of the conductive rod and the positioning part, and avoids stress concentration caused by the conductive rod being pulled when installed in the detection hole.

[0014] In a specific embodiment, the electromagnetic induction element has a ring structure. This structure allows the electromagnetic induction element to be installed in a mounting cavity surrounding the detection hole, and prevents interference during assembly into the mounting base.

[0015] According to a second aspect of this invention, a fluxgate current sensor is provided, including the aforementioned mounting base for the fluxgate current sensor. With this structural arrangement, the insulating baffle in the current sensor will not interfere with the multiple conductive rods when pressed into the detection hole.

[0016] In a specific embodiment, the fluxgate current sensor also includes an insulating baffle that isolates the multiple conductive rods. This structural design prevents direct contact between the conductive rods, avoiding the risk of short circuits caused by voltage differences or foreign object intrusion.

[0017] In a specific embodiment, the mounting base includes a base plate, an outer side wall, and an inner side wall. The inner side wall is hollow to form a detection hole, and the area between the outer side wall and the inner side wall forms a mounting cavity. This structural design ensures that the conductive rod installed in the detection hole passes through the electromagnetic induction element installed in the mounting cavity, thereby generating an induced current.

[0018] Compared with the prior art, the beneficial results of this utility model are as follows:

[0019] By setting a positioning part inside the detection hole, multiple conductive rods are positioned in layers, and the position of each conductive rod inside the detection hole is precisely constrained, which can effectively avoid the problem of interference between the insulating baffle and the conductive rod when it is pressed into the detection hole. Attached Figure Description

[0020] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and, together with the description, serve to explain the principles of the present invention. Other embodiments and many anticipated advantages of the embodiments will be readily recognized as they become better understood through reference to the following detailed description. Elements in the drawings are not necessarily to scale. The same reference numerals refer to corresponding similar parts.

[0021] Figure 1a This is a front structural schematic diagram of a mounting base for a fluxgate current sensor according to the first embodiment of the present invention;

[0022] Figure 1b This is a schematic diagram of the back structure of a fluxgate current sensor mounting base according to the first embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the electromagnetic induction element and PCB board according to the second embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the electromagnetic induction element and PCB board installed in the mounting base according to the second embodiment of the present invention;

[0025] Figure 4a This is a front structural schematic diagram of a fluxgate current sensor according to the second embodiment of the present invention;

[0026] Figure 4bThis is a schematic diagram of the back structure of a fluxgate current sensor according to a second embodiment of the present invention.

[0027] The meanings of the numbers in the diagram are as follows: 01-Mounting base, 02-Detection hole, 03-Upper positioning part, 04-Lower positioning part, 05-Arc-shaped groove, 06-Limiting plate, 07-Limiting groove, 08-Partition plate, 09-Mounting groove, 10-Rear elastic buckle, 11-Electromagnetic induction element, 12-PCB board, 13-Cover plate, 14-Pin, 15-Front elastic buckle, 16-Conductive rod, 17-Baffle, 18-Insulating baffle, 19-Mounting block, 20-Mounting cavity, 21-Outer wall, 22-Inner wall, 23-Base plate. Detailed Implementation

[0028] In the following detailed description, reference is made to the accompanying drawings, which form part of the detailed description and illustrate illustrative specific embodiments in which the present invention may be practiced. In this regard, directional terms such as “top,” “bottom,” “left,” “right,” “up,” “down,” etc., are used with reference to the orientation of the described figures. Because components of the embodiments can be positioned in several different orientations, directional terms are used for illustrative purposes and are by no means limiting. It should be understood that other embodiments may be utilized or logical changes may be made without departing from the scope of the present invention. Therefore, the following detailed description should not be taken in a limiting sense, and the scope of the present invention is defined by the appended claims.

[0029] This invention proposes a mounting base and a current sensor for a fluxgate current sensor. Figure 1a Figure 1 shows a front structural schematic diagram of a mounting base for a fluxgate current sensor according to the first embodiment of this utility model. The mounting base 01 is a square frame structure. The mounting base 01 for the fluxgate current sensor includes a detection hole 02 and a mounting cavity 20 surrounding the detection hole 02. An electromagnetic induction element surrounding the detection hole 02 is mounted in the mounting cavity 20. Multiple conductive rods pass through the detection hole 02, and a positioning part is provided within the detection hole 02 to position the multiple conductive rods respectively. In this structural arrangement, the positioning part positions the multiple conductive rods inserted into the detection hole 02, so that the position of each conductive rod within the detection hole 02 is precisely constrained.

[0030] In a specific embodiment, partitions 08 are provided on both sides inside the mounting base 01 to isolate the housing of the mounting base 01 from the electromagnetic induction element. Multiple limiting grooves 07 are provided at the bottom of the mounting base 01 to limit the PCB board horizontally, and limiting plates 06 are also provided on both sides inside the mounting base 01 to limit the PCB board vertically. This structural design facilitates the assembly and fixation of the electromagnetic induction element and PCB board assembly into the mounting base 01, preventing displacement.

[0031] In a specific embodiment, the positioning part includes an upper positioning part 03 and a lower positioning part 04. The upper positioning part 03 is disposed above the detection hole 02, and the lower positioning part 04 is disposed below the detection hole 02. In this structural arrangement, the upper positioning part 03 and the lower positioning part 04 enable the conductive rods at different positions to be positioned in layers.

[0032] In a specific embodiment, the upper positioning part 03 is a positioning hook, a positioning buckle, or a positioning gripper. In this structural configuration, the positioning hook is suitable for scenarios involving multiple vibrations and layered positioning of multiple conductive rods; the positioning buckle is suitable for scenarios requiring frequent maintenance or low-cost mass production; and the positioning gripper is suitable for scenarios involving high-precision detection or positioning of irregularly shaped conductive rods. In this example, the upper positioning part 03 is a positioning hook.

[0033] In a specific embodiment, the lower positioning part 04 is a limiting baffle, and the limiting baffle is provided with an arc-shaped groove 05 that matches the conductive rod. Through this structural setting, the curvature of the arc-shaped groove 05 constrains the lateral movement of the conductive rod; the thickness of the limiting baffle and the depth of the arc-shaped groove 05 together limit the vertical sinking of the conductive rod, preventing displacement due to gravity. It can be understood that the lower positioning part 04 can also be configured with the same structure as the upper positioning part 03, such as a positioning hook, a positioning buckle, or a positioning gripper.

[0034] In a specific embodiment, multiple conductive rods are respectively matched and operated with the upper positioning part 03 and the lower positioning part 04. In this structural arrangement, the multiple conductive rods are positioned by engaging with the upper positioning part 03 or by being installed in the lower positioning part 04.

[0035] In a specific embodiment, the wall of the detection hole 02 and the positioning part are integrally formed. In this structural design, integral forming can reduce connection points, thereby enhancing the mechanical strength of the overall structure and reducing breakage or deformation caused by vibration or external force; at the same time, integral forming can also reduce the number of parts, simplify assembly steps, improve production efficiency, and reduce costs.

[0036] Figure 1b This is a schematic diagram of the back structure of a fluxgate current sensor mounting base according to the first embodiment of this utility model. Figure 1b As shown, the mounting base 01 for the fluxgate current sensor also includes a rear elastic clip 10, which is located on the rear side of the mounting base 01 and is used to fix the rear end of the conductive rod. This structure facilitates the precise fixing of multiple conductive rods on the mounting base 01, restricts the movement of the conductive rods in the rear direction, and improves the overall stability.

[0037] Figure 2 This is a structural schematic diagram of the electromagnetic induction element and PCB board assembly according to the second embodiment of this utility model. Figure 2 As shown, the electromagnetic induction element 11 is connected to the PCB board 12 by soldering. The bottom of the PCB board 12 has multiple pins 14. A cover plate 13 passes through the pins 14 and is mounted on the PCB board 12. The cover plate 13 has a front elastic clip 15 that matches the rear side of the mounting base 01 for fixing the front end of the conductive rod. In this example, the electromagnetic induction element 11 is a magnetic core. Through this structural arrangement, the electromagnetic induction element 11 is electrically connected to the detection circuit on the PCB board 12. The multiple pins 14 passing through the cover plate 13 enable precise positioning of the cover plate 13 and the PCB board 12, facilitating rapid assembly of the cover plate 13 and the PCB board 12.

[0038] Figure 3 This is a schematic diagram of the structure of the electromagnetic induction element and PCB board installed in the mounting base according to the second embodiment of this utility model. Figure 3 As shown, the electromagnetic induction element 11 is disposed in the mounting cavity 20. The two side partitions 08 inside the mounting base 01 are used to isolate the electromagnetic induction element 11 from the inner shell of the mounting base 01. The PCB board 12 and its upper cover plate 13 are mounted on the bottom of the mounting base 01, and are horizontally limited by the engagement of pins 14 with the limiting grooves 07 at the bottom of the mounting base 01. The PCB board 12 and its upper cover plate 13 are vertically limited by the limiting plate 06 provided on the mounting base 01. After the electromagnetic induction element 11 and the PCB board 12 are installed in the mounting base 01, potting compound is required to fix the electromagnetic induction element 11 and the PCB board 12. This structural design prevents the electromagnetic induction element 11 and the PCB board 12 from shifting during subsequent assembly of the fluxgate current sensor.

[0039] In a specific embodiment, the mounting base 01 includes a base plate 23, an outer side wall 21, and an inner side wall 22. The inner side wall 22 is hollow to form a detection hole 02, and the area between the outer side wall 21 and the inner side wall 22 forms a mounting cavity 20. With this structural arrangement, it is possible to ensure that the conductive rod installed in the detection hole 02 passes through the electromagnetic induction element 11 installed in the mounting cavity 20, thereby generating an induced current.

[0040] In a specific embodiment, the electromagnetic induction element 11 has a ring structure. With this structure, the electromagnetic induction element 11 can be installed in the mounting cavity 20 surrounding the detection hole 02, and interference can be avoided during assembly into the mounting base 01.

[0041] In a specific embodiment, when the cover plate 13 and the PCB board 12 are installed into the mounting base 01, the front elastic buckle 15 provided on the cover plate 13 is located exactly on the front side of the mounting base 01. It can be understood that the front elastic buckle 15 on the cover plate 13 is provided on the front side of the mounting base 01.

[0042] Figure 4a and Figure 4b These are schematic diagrams of the front and back sides of a fluxgate current sensor according to the second embodiment of this utility model. Figure 4a and Figure 4b As shown, the fluxgate current sensor includes, as follows: Figure 1a and Figure 1b The mounting base 01 shown is for a fluxgate current sensor. Four conductive rods 16 pass through the detection hole 02. The front ends of the four conductive rods 16 are engaged in four front elastic clips 15 on the front side of the mounting base 01; the rear ends of the four conductive rods 16 are engaged in four rear elastic clips 10 on the rear side of the mounting base 01. Two conductive rods 16 fixed in two elastic clips on both sides are engaged in the upper positioning part 03 in the detection hole 02, and two conductive rods fixed in two elastic clips in the middle are positioned in the arc-shaped groove 05 of the lower positioning part 04.

[0043] This structure enables precise positioning and fixation of the four conductive rods 16 on the mounting base 01. The upper positioning part 03 and the lower positioning part 04 are responsible for positioning the four conductive rods 16 in the vertical and horizontal directions, respectively, while the front elastic buckle 15 and the rear elastic buckle 10 fix the front and rear ends of the conductive rods 16, respectively, which can further restrict the movement of the conductive rods 16 in the front and rear directions and improve the overall stability.

[0044] In a specific embodiment, the total number of upper positioning parts 03 and the number of arc-shaped grooves 05 in the lower positioning part 04 are the same as the number of conductive rods 16. This structural arrangement matches the number of conductive rods 16 to the number of positioning parts, ensuring each conductive rod 16 has an independent positioning structure. This avoids potential interference when multiple conductive rods 16 share a single positioning structure, thus improving positioning accuracy. In this example, there are four conductive rods 16, two upper positioning parts 03, and two arc-shaped grooves 05 in the lower positioning part 04. The number of conductive rods 16 matches the number of arc-shaped grooves 05 in the upper positioning parts 03 and the lower positioning part 04.

[0045] In a specific embodiment, the opening of the elastic buckle on the left side of the mounting base 01 faces left, and the opening of the elastic buckle on the right side of the mounting base 01 faces right. This structural design facilitates the assembly of the conductive rod and the positioning part, and avoids stress concentration caused by pulling when the conductive rod is installed in the detection hole. In this example, the openings of the two front elastic buckles 15 and the rear elastic buckles 10 on the left side of the mounting base 01 face left; the openings of the two front elastic buckles 15 and the rear elastic buckles 10 on the right side of the mounting base 01 face right.

[0046] In a specific embodiment, the fluxgate current sensor further includes an insulating baffle 18. A baffle 17 is provided at the front end of the insulating baffle 18, and the baffle 17 is inserted into the conductive rods 16, separating each conductive rod 16. Mounting blocks 19 are provided on the upper and lower sides of the insulating baffle 18. The mounting blocks 19 match the mounting groove 09 on the rear side of the mounting base 01, allowing the insulating baffle 18 to be installed and fixed on the mounting base 01. This structural design can prevent direct contact between the conductive rods, avoiding the risk of short circuits caused by voltage differences or foreign object intrusion.

[0047] Obviously, those skilled in the art can make various modifications and changes to the embodiments of this utility model without departing from the spirit and scope of this utility model. In this way, this utility model is also intended to cover such modifications and changes if they fall within the scope of the claims of this utility model and their equivalents. The word "comprising" does not exclude the presence of other elements or steps not listed in the claims. The simple fact that certain measures are described in mutually different dependent claims does not indicate that a combination of these measures cannot be used for profit. Any reference numerals in the claims should not be considered as limiting the scope.

Claims

1. A mounting base for a fluxgate current sensor, characterized in that, include: The device includes a detection hole and a mounting cavity surrounding the detection hole. An electromagnetic induction element surrounding the detection hole is installed in the mounting cavity. Multiple conductive rods are inserted through the detection hole, and a positioning part is provided inside the detection hole for positioning the multiple conductive rods respectively.

2. The mounting base for a fluxgate current sensor according to claim 1, characterized in that, The positioning part includes an upper positioning part and a lower positioning part. The upper positioning part is disposed above the detection hole, and the lower positioning part is disposed below the detection hole.

3. A mounting base for a fluxgate current sensor according to claim 2, characterized in that, The upper positioning part includes a positioning hook, a positioning buckle, or a positioning gripper.

4. A mounting base for a fluxgate current sensor according to claim 2, characterized in that, The lower positioning part includes a limiting baffle, and the limiting baffle is provided with an arc-shaped groove that matches the conductive rod.

5. A mounting base for a fluxgate current sensor according to claim 3 or 4, characterized in that, The multiple conductive rods are respectively matched and operated with the upper positioning part and the lower positioning part.

6. A mounting base for a fluxgate current sensor according to claim 5, characterized in that, The sum of the number of upper positioning parts and the number of arc-shaped grooves of the lower positioning parts is the same as the number of conductive rods.

7. A mounting base for a fluxgate current sensor according to claim 1, characterized in that, The wall of the detection hole and the positioning part are integrally formed.

8. A mounting base for a fluxgate current sensor according to claim 1, characterized in that, It also includes elastic clips, which are disposed on the front and rear sides of the mounting base to fix the front and rear ends of the conductive rod, respectively.

9. A mounting base for a fluxgate current sensor according to claim 8, characterized in that, The elastic buckle opening on the left side of the mounting base faces left, and the elastic buckle opening on the right side of the mounting base faces right.

10. A mounting base for a fluxgate current sensor according to claim 1, characterized in that, The electromagnetic induction element has a ring structure.

11. A fluxgate current sensor, characterized in that, The invention includes a mounting base for a fluxgate current sensor according to any one of claims 1-10.

12. A fluxgate current sensor according to claim 11, characterized in that, It also includes an insulating baffle that isolates the plurality of conductive rods.

13. A fluxgate current sensor according to claim 11, characterized in that, The mounting base includes a base plate, an outer side wall, and an inner side wall. The inner side wall is hollow to form the detection hole, and the area between the outer side wall and the inner side wall forms the mounting cavity.

Images