CN211237863U - A probe-shaped space magnetic field generator - Google Patents

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

A probe-shaped space magnetic field generator

technical field

The utility model relates to the field of magnetic fields, in particular to a probe-shaped space magnetic field generating device.

Background technique

Magnetic field refers to the field that transmits the magnetic force between objects. Magnetic fields are created by moving charges or changes in electric fields. The magnetic field produced by the current is the magnetic field produced by the electrons moving in the wire.

In recent years, in research topics in the fields of aerospace, shipbuilding, electronics, geology, and biological sciences, there are more and more demands for magnetic field generators that can generate various magnetic field strengths.

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

Utility model content

The purpose of the utility model is to provide a magnetic field generating device with simple structure, small spacing between magnetic heads, and a large range of the generated magnetic field.

The utility model adopts the following technical solutions.

A probe-shaped space magnetic field generating device, comprising: a fixed bracket, a plurality of sets of magnetic field generating components arranged on the fixed bracket, the magnetic field generating components comprising an electromagnetic coil bobbin and an electromagnet installed in the electromagnetic coil bobbin a core and a coil wound outside the electromagnetic coil bobbin; one end of the electromagnet core protrudes from the electromagnetic coil bobbin to form a conical pole head, and multiple sets of the magnetic field generating components are distributed at equal intervals and constructed into a conical three-dimensional space, and a plurality of the pole heads approach each other at the cone head of the cone-shaped three-dimensional space.

Further, the magnetic field generating components have three groups, and the included angles formed by each two groups of the magnetic field generating components are both 30° to 110°.

Further, the fixing bracket includes an outer frame and a fixture; the electromagnetic coil bobbin is mounted on the fixture, and the fixture is mounted in the outer frame.

Further, the electromagnetic coil bobbin includes a cylindrical body and a limit ring protruding laterally along both ends of the cylindrical body.

Further, each group of the magnetic field generating components is electrically connected with a programmable current source, and the programmable current source is used to control the magnitude and direction of the current of the coil.

Further, the plurality of pole heads are close to each other to a distance of 0.2-1 cm.

The beneficial effects of the utility model are as follows: the structure of the device is simple, and the pole heads are all conical probe-type structures, so that the plurality of pole heads can be more compact and can generate a larger magnetic field range. Further, by using the programmable current source, the magnetic induction intensity and gradient of the spatial magnetic field can be precisely adjusted in real time.

Description of drawings

In order to illustrate the technical solutions of the present invention more clearly, the following briefly introduces the accompanying drawings used in the implementation manner. Obviously, the accompanying drawings in the following description are only some implementations of the present utility model. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic diagram of the overall structure of the probe-shaped space magnetic field generator provided in Embodiment 1;

Fig. 2 is the structural representation of the fixture provided by embodiment 1;

3 is a schematic structural diagram of an electromagnetic coil bobbin and an electromagnet core provided in Embodiment 1. FIG.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Example 1

As shown in FIG. 1 , a probe-shaped space magnetic field generating device includes: an outer frame 1 , a holder 2 , and multiple sets of magnetic field generating components arranged on the holder 2 . The magnetic field generating assembly includes an electromagnetic coil bobbin 3 , an electromagnet core 4 installed in the electromagnetic coil bobbin 3 , and a coil 6 wound outside the electromagnetic coil bobbin. The electromagnetic coil bobbin 3 is mounted on the holder 2 , and the holder 2 is mounted in the outer frame 1 . As shown in FIG. 2 , in this embodiment, the structure of the fixing device 2 is formed by joining two plates which form a certain angle with each other.

In this embodiment, the holder 2 is fixedly installed in the outer frame 1 by means of bolts. The electromagnetic coil bobbin 3 is fixedly mounted on the holder 2 by means of bolts.

One end of the electromagnet core 4 protrudes from the electromagnetic coil bobbin 3 to form a conical pole head 5, a plurality of sets of magnetic field generating components are equally spaced and constructed into a conical three-dimensional space, and a plurality of pole heads 5 are located at the conical head of the conical three-dimensional space. equidistant from each other. In this 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 the top ends of each two pole heads 5 may also be 0.2-1 cm, and is not limited thereto. Within this distance, the pole heads 5 will not collide, and a strong magnetic field can be generated.

The pole heads 5 are all conical probe-type structures, so that the plurality of pole heads 5 can be more compact and do not touch each other, and can generate a larger magnetic field range.

Among them, there are three groups of magnetic field generating components. In this embodiment, the included angle formed by each two sets of magnetic field generating components is 60°. In other embodiments of the present invention, the included angle formed by each two sets of magnetic field generating components may also be 30°˜110°. Three groups of magnetic field generating components are selected, and the included angles of each two groups are the same, the structure is simple, the space is compact, and the size and direction of the magnetic field are controlled.

As shown in FIG. 3 , the electromagnetic coil bobbin 3 includes a cylindrical body 7 and a limit ring 8 laterally protruding along both ends of the cylindrical body for loading the electromagnet core 4 and serving as a support frame for the coil 6 .

Further, each group of coils 6 is electrically connected with a programmable current source, and the programmable current source is used to control the magnitude and direction of the current of the coils 6 . Programmable current source can choose GPD-3303 programmable DC power supply, and other types of programmable DC current source can also be used.

The direction and magnitude of the magnetic field are adjusted in real time by using a programmable current source to adjust the magnetic induction intensity and gradient of the magnetic field, and the current of the electromagnetic field is small. In use, adjusting the magnitude and direction of the current is used to control the strength and direction of the magnetic field. The device has a simple structure and can generate a magnetic field of precise intensity, and the magnetic particles can move in the space magnetic field.

The above disclosures are only the preferred embodiments of the present invention, which cannot limit the scope of the rights of the present invention. Those of ordinary skill in the art can understand that all or part of the procedures for realizing the above-mentioned embodiments can be implemented according to the present invention. The equivalent changes made by the claims still belong to the scope of the rights covered by the present invention.

Claims (6)

1. A probe-shaped space magnetic field generating device is characterized in that, comprising: a fixing bracket, a plurality of sets of magnetic field generating assemblies arranged on the fixing bracket, the magnetic field generating assemblies comprising an electromagnetic coil bobbin, mounted on the electromagnetic The electromagnet core in the coil bobbin and the coil wound outside the electromagnetic coil bobbin; one end of the electromagnet core protrudes from the electromagnetic coil bobbin to form a conical pole, and multiple sets of the magnetic field generating components are distributed at equal intervals It is constructed into a cone-shaped three-dimensional space, and a plurality of the pole heads are close to each other at the cone head of the cone-shaped three-dimensional space. 2 . The probe-shaped space magnetic field generating device according to claim 1 , wherein the magnetic field generating components have three groups, and the included angles formed by each two groups of the magnetic field generating components are both 30° to 110°. 3 . 3 . The probe-shaped space magnetic field generating device according to claim 1 , wherein the fixing bracket comprises an outer frame and a fixture; the electromagnetic coil bobbin is mounted on the fixture, and the fixture is mounted on the fixture 3 . within the outer frame. 4 . The probe-shaped space magnetic field generating device according to claim 1 , wherein the electromagnetic coil bobbin comprises a cylindrical body and a limit ring protruding laterally along both ends of the cylindrical body. 5 . 5 . The probe-shaped space magnetic field generating device according to claim 1 , wherein each group of the magnetic field generating components is electrically connected with a programmable current source, and the programmable current source is used to control the coil. 6 . Current magnitude and direction. 6 . The probe-shaped spatial magnetic field generating device according to claim 1 , wherein the plurality of pole heads are close to each other by 0.2-1 cm. 7 .

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