CN211237863U

CN211237863U - Probe-shaped space magnetic field generating device

Info

Publication number: CN211237863U
Application number: CN202020231371.1U
Authority: CN
Inventors: 彭振搏; 苏金章; 莫非; 马玮城; 宦智杰
Original assignee: Xiamen University of Technology
Current assignee: Xiamen University of Technology
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2020-08-11
Anticipated expiration: 2030-02-28

Abstract

The utility model provides a probe-like space magnetic field generating device relates to the magnetic field. The device includes: the magnetic field generating assembly comprises an electromagnetic coil framework, an electromagnetic iron core arranged in the electromagnetic coil framework and a coil wound outside the electromagnetic coil framework. One end of the electromagnetic iron core extends out of the electromagnetic coil framework to form a conical pole head. The multiple groups of magnetic field generating assemblies are distributed at equal intervals and are constructed into a cone-shaped three-dimensional space, and the multiple pole heads are close to each other at the cone heads of the cone-shaped three-dimensional space. The device has a simple structure, and the pole heads are conical probe-type structures, so that a plurality of pole heads can be more compact and can generate a larger magnetic field range after being connected with a power supply.

Description

Probe-shaped space magnetic field generating device

Technical Field

The utility model relates to a magnetic field especially relates to a probe form space magnetic field generating device.

Background

The magnetic field is a field that transmits the action of magnetic force between objects. The magnetic field is generated by a change in the moving charge or electric field. The magnetic field generated by the current is the magnetic field generated by the electrons moving in the wire.

In recent years, in research projects in the fields of aerospace, ships, electronics, geosciences, biosciences, and the like, there are increasing demands for magnetic field generators capable of generating various magnetic field strengths.

The existing space magnetic field generating device has a complex structure and a small generated intensity range.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a magnetic field generating device that simple structure, the interval of magnetic head are little, and the magnetic field scope of production is big.

The utility model adopts the following technical scheme.

A probe-like spatial magnetic field generating device comprising: the electromagnetic field generating assembly comprises an electromagnetic coil framework, an electromagnetic iron core arranged in the electromagnetic coil framework and a coil wound outside the electromagnetic coil framework; one end of the electromagnetic core extends out of the electromagnetic coil framework to form a conical pole head, the multiple groups of magnetic field generating assemblies are distributed at equal intervals and constructed into a conical three-dimensional space, and the pole heads are close to each other at the conical head of the conical three-dimensional space.

Furthermore, the magnetic field generating assemblies are provided with three groups, and the included angle formed by each two groups of magnetic field generating assemblies is 30-110 degrees.

Further, the fixing bracket includes an outer frame and a holder; the electromagnetic coil skeleton is installed on the fixer, and the fixer is installed in the outer frame.

Furthermore, the electromagnetic coil framework comprises a cylindrical body and limiting rings which laterally protrude from two ends of the cylindrical body.

Further, each group of the magnetic field generating assemblies is electrically connected with a programmable current source, and the programmable current source is used for controlling the current magnitude and direction of the coil.

Furthermore, the pole heads are close to each other to 0.2-1 cm.

The utility model has the advantages that: the device has a simple structure, and the pole heads are conical probe-type structures, so that a plurality of pole heads can be more compact and can generate a larger magnetic field range. Furthermore, the magnetic induction intensity and the gradient of the space magnetic field can be accurately adjusted in real time by utilizing the programmable current source.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings required for the embodiments will be briefly described below, and obviously, the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of a probe-like spatial magnetic field generating device provided in embodiment 1;

FIG. 2 is a schematic view of the structure of the anchor provided in example 1;

fig. 3 is a schematic structural view of an electromagnetic coil bobbin and an electromagnetic core provided in embodiment 1.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

As shown in fig. 1, a probe-like spatial magnetic field generating apparatus includes: the magnetic field generating device comprises an outer frame 1, a fixer 2 and a plurality of groups of magnetic field generating assemblies arranged on the fixer 2. The magnetic field generating assembly comprises an electromagnetic coil framework 3, an electromagnetic iron core 4 installed in the electromagnetic coil framework 3 and a coil 6 wound outside the electromagnetic coil framework. The solenoid bobbin 3 is mounted on the holder 2, and the holder 2 is mounted in the outer frame 1. In the present embodiment, the retainer 2 is formed by joining two plates at a certain angle to each other, as shown in fig. 2.

In this embodiment, the anchor 2 is fixedly installed in the outer frame 1 by bolts. The electromagnetic coil framework 3 is fixedly installed on the fixer 2 through bolts.

One end of the electromagnetic iron core 4 extends out of the electromagnetic coil framework 3 to form a conical pole head 5, the multiple groups of magnetic field generating assemblies are distributed at equal intervals and constructed into a conical three-dimensional space, and the pole heads 5 are close to each other at the conical head of the conical three-dimensional space at equal intervals. In the present embodiment, the distance between the top ends of every two pole heads 5 is 0.5 cm. In other embodiments of the present invention, the distance between every two pole heads 5 can also be 0.2-1 cm, and is not limited thereto. Within this distance, the pole heads 5 do not collide with each other, and a strong magnetic field can be generated.

The pole heads 5 are all conical probe type structures, so that the pole heads 5 can be more compact and do not collide with each other, and a larger magnetic field range can be generated.

Wherein, there are three groups of magnetic field generating assemblies. In the present embodiment, the included angle formed by each two sets of magnetic field generating assemblies is 60 °. In other embodiments of the present invention, the included angle formed by each two sets of magnetic field generating assemblies may also be 30 ° to 110 °. Three groups of magnetic field generating assemblies are selected, and included angles formed by every two groups of magnetic field generating assemblies are the same, so that the magnetic field generating assembly is simple in structure, compact in space and beneficial to controlling the size and the direction of a magnetic field.

As shown in fig. 3, the solenoid bobbin 3 includes a cylindrical body 7 and a retainer ring 8 projecting laterally along both ends of the cylindrical body for housing the electromagnet core 4 and for serving as a support frame for the coil 6.

Further, each set of coils 6 is electrically connected to a programmable current source for controlling the magnitude and direction of the current of the coils 6. The programmable current source can be a GPD-3303 programmable direct current power supply, and can also be programmable direct current sources of other types.

The direction and the size of the magnetic field are adjusted in real time by a programmable current source, and the current of the magnetic field is small. In use, the magnitude and direction of the current is adjusted to control the strength and direction of the magnetic field. The device has simple structure, can generate a magnetic field with accurate intensity, and the magnetic particles can move in the space magnetic field.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims

1. A probe-like spatial magnetic field generating device, comprising: the electromagnetic field generating assembly comprises an electromagnetic coil framework, an electromagnetic iron core arranged in the electromagnetic coil framework and a coil wound outside the electromagnetic coil framework; one end of the electromagnetic core extends out of the electromagnetic coil framework to form a conical pole head, the multiple groups of magnetic field generating assemblies are distributed at equal intervals and constructed into a conical three-dimensional space, and the pole heads are close to each other at the conical head of the conical three-dimensional space.

2. The probe-like spatial magnetic field generation device according to claim 1, wherein the magnetic field generation assemblies have three groups, and the included angle formed by each two groups of the magnetic field generation assemblies is 30 ° to 110 °.

3. The probe-like spatial magnetic field generating device according to claim 1, wherein the fixing bracket includes an outer frame and a holder; the electromagnetic coil skeleton is installed on the fixer, and the fixer is installed in the outer frame.

4. The probe-like spatial magnetic field generating device according to claim 1, wherein the electromagnetic coil bobbin includes a cylindrical body and a stopper ring protruding laterally along both ends of the cylindrical body.

5. The probe-like spatial magnetic field generation device of claim 1, wherein each set of magnetic field generation assemblies is electrically connected with a programmable current source for controlling the magnitude and direction of the current of the coil.

6. The probe-like spatial magnetic field generator according to claim 1, wherein the plurality of pole heads are close to each other by 0.2 to 1 cm.