CN212647986U - Three-dimensional gradient magnetic field generating device - Google Patents
Three-dimensional gradient magnetic field generating device Download PDFInfo
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- CN212647986U CN212647986U CN202020367373.3U CN202020367373U CN212647986U CN 212647986 U CN212647986 U CN 212647986U CN 202020367373 U CN202020367373 U CN 202020367373U CN 212647986 U CN212647986 U CN 212647986U
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- electromagnet
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Abstract
The utility model provides a three-dimensional gradient magnetic field generating device, include: the device comprises a support frame, a horizontal magnet assembly arranged on the support frame, a longitudinal electromagnet arranged in the support frame, and a programmable current source electrically connected with the horizontal magnet assembly and the longitudinal electromagnet; the horizontal magnet assembly includes: a first magnet assembly and a second magnet assembly; the first magnet assembly comprises two first electromagnets which are coaxially and symmetrically arranged at a first interval, and the second magnet assembly comprises two second electromagnets which are coaxially and symmetrically arranged at a second interval; the longitudinal electromagnets are arranged below the horizontal magnet assembly at a certain distance. Based on the utility model discloses, solve current magnetic field generating device and be difficult to the magnetic field problem in the regulation and control three-dimensional region.
Description
Technical Field
The utility model relates to a field, in particular to three-dimensional gradient magnetic field generating device take place in the magnetic field.
Background
The magnetic field has two functions of force and torque on the magnetic object, and the intrinsic mechanical loss of the object can be obviously reduced by utilizing the functions of the magnetic force and the torque, so that the magnetic field has high practical application value. Proper spatial magnetic field distribution is required for the physical driving of the line, and uniform magnetic field intensity and field intensity gradient can be obtained by utilizing the combined coil.
The gradient magnetic field is a varying vector field that rises or falls proportionally with the time t. The gradient magnetic field can be generated in a number of ways, for example, using Maxwell coils to generate a wide range of gradient fields; generating a magnetic field with a uniform magnetic field gradient within a certain range by using a Golay coil; the corresponding longitudinal gradient field and transverse gradient field can be generated by using a parallel current method.
The existing product is complex in structure, inconvenient to operate, low and unstable in magnetic field generation precision, incapable of accurately controlling and changing the magnetic field in real time, and limited in three-dimensional area range of regulation and control.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a three-dimensional gradient magnetic field generating device aims at solving the magnetic field problem that current magnetic field generating device is difficult to regulate and control in the three-dimensional region.
The embodiment of the utility model provides a three-dimensional gradient magnetic field generating device, include: the device comprises a support frame, a horizontal magnet assembly arranged on the support frame, a longitudinal electromagnet arranged in the support frame, and a programmable current source electrically connected with the horizontal magnet assembly and the longitudinal electromagnet;
the horizontal magnet assembly includes: a first magnet assembly and a second magnet assembly;
the first magnet assembly comprises two first electromagnets which are coaxially and symmetrically arranged at a first interval, and the second magnet assembly comprises two second electromagnets which are coaxially and symmetrically arranged at a second interval; the longitudinal electromagnets are arranged below the horizontal magnet assembly at a certain distance.
Preferably, the first magneto-electric body comprises: the electromagnetic device comprises a first electromagnetic core, a first electromagnetic coil and a first magnetic head, wherein the first electromagnetic coil is sleeved on the first electromagnetic core;
preferably, the second electromagnet comprises: the second electromagnetic core, the second electromagnetic coil sleeved on the second electromagnetic core and the second magnetic head arranged at the top of the second electromagnetic core.
Preferably, the longitudinal electromagnet comprises: the magnetic head comprises a longitudinal electromagnetic iron core, a longitudinal electromagnetic coil sleeved on the longitudinal electromagnetic iron core and a longitudinal magnetic head arranged at the top of the longitudinal electromagnetic iron core.
Preferably, the first head, the second head and the longitudinal head are tapered.
Preferably, a first fixing frame is fixed at the bottom of the first electromagnet, the first fixing frame is movably arranged on the supporting frame, and the first fixing frame is used for driving the first electromagnet to move left and right.
Preferably, a second fixed frame is fixed at the bottom of the second electromagnet, the second fixed frame is movably arranged on the support frame, and the second fixed frame is used for driving the second electromagnet to move left and right.
Preferably, a longitudinal fixing frame is fixed at the bottom of the longitudinal electromagnet and is used for driving the longitudinal electromagnet to move up and down.
Preferably, the first magnet assembly and the second magnet assembly are disposed on the same horizontal plane.
Preferably, the first pitch is equal to the second pitch, the longitudinal electromagnet is disposed below a midpoint of the first pitch, and the longitudinal electromagnet is spaced from the midpoint by 1/2 of the first pitch.
Based on the three-dimensional gradient magnetic field generating device provided by the utility model, the programmable current source is a longitudinal electromagnet, and the horizontal magnet is electrified, so that the first magnet assembly generates a magnetic field in the X direction, the second magnet assembly generates a magnetic field in the Y direction, the longitudinal electromagnet generates a magnetic field in the Z direction, the intensity of the magnetic field can be changed by changing the magnitude of the output current through the programmable current source, the magnitude of the first distance and the magnitude of the second distance can be changed through the first fixing frame and the second fixing frame (namely, the magnetic field range in the XY direction can be adjusted), the distance from the longitudinal magnetic head to the central point can be changed through the setting of the longitudinal fixing frame (namely, the magnetic field range in the Z direction can be adjusted), the magnetic head is set to be conical, the magnetic field generated by the device is larger, the magnets are not easy to touch, and the structure, the problem that the existing magnetic field generating device is difficult to regulate and control the magnetic field in a three-dimensional region is solved.
Drawings
Fig. 1 is a schematic structural diagram of a three-dimensional gradient magnetic field generating device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a first, a second and a longitudinal electromagnet provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of first and second fixing frames according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a longitudinal fixing frame provided in an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are 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. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
The utility model discloses a three-dimensional gradient magnetic field generating device aims at solving the magnetic field problem that current magnetic field generating device is difficult to regulate and control in the three-dimensional region.
Referring to fig. 1 and 2, an embodiment of the present invention provides a three-dimensional gradient magnetic field generating device, including: the device comprises a support frame 1, a horizontal magnet assembly arranged on the support frame 1, a longitudinal electromagnet 7 arranged in the support frame 1, and a programmable current source electrically connected with the horizontal magnet assembly and the longitudinal electromagnet 7;
the horizontal magnet assembly includes: a first magnet assembly and a second magnet assembly;
the first magnet assembly comprises two first electromagnets 5 which are coaxially and symmetrically arranged at a first interval, and the second magnet assembly comprises two second electromagnets 4 which are coaxially and symmetrically arranged at a second interval; the longitudinal electromagnets 7 are arranged at a distance below the horizontal magnet assembly.
It should be noted that, when the programmable current source supplies power to the horizontal magnet assembly and the longitudinal electromagnet 7, two first magnets are placed above the support frame 1 to generate a magnetic field in the X direction, and two second magnets are placed above the support frame 1 to generate a magnetic field in the Y direction. The longitudinal electromagnet 7 is placed inside the support frame 1 to generate a magnetic field in the Z direction. The programmable current source can change the magnitude of the output current, and further the magnetic field intensity generated by the adjusting device in the three-dimensional space is realized.
In this embodiment, the programmable power supply may adopt a rig ol DP832A, and of course, in other embodiments, the programmable power supply may select a corresponding model according to actual situations, and the present invention is not limited in particular.
In the present embodiment, the first electromagnet 5 includes: the electromagnetic device comprises a first electromagnetic core, a first electromagnetic coil sleeved on the first electromagnetic core and a first magnetic head 51 arranged at the top of the first electromagnetic core;
it should be noted that the output of the programmable current source is electrically connected to the first electromagnetic coil, and when current is applied, the first electromagnet 5 generates a magnetic field in the X direction.
In the present embodiment, the second electromagnet 4 includes: the second electromagnetic core, the second electromagnetic coil sleeved on the second electromagnetic core and the second magnetic head 41 installed at the top of the second electromagnetic core.
The output of the programmable current source is electrically connected to the second electromagnetic coil, and when current is applied, the second electromagnet 4 generates a magnetic field in the Y direction.
In the present embodiment, the longitudinal electromagnet 7 includes: the magnetic head comprises a longitudinal electromagnetic iron core, a longitudinal electromagnetic coil sleeved on the longitudinal electromagnetic iron core and a longitudinal magnetic head 71 installed at the top of the longitudinal electromagnetic iron core.
It should be noted that the output of the programmable current source is electrically connected to the longitudinal electromagnetic coil, and that the longitudinal electromagnet 7 generates a magnetic field in the Z direction when supplied with current.
In this embodiment, the first magnetic head 51, the second magnetic head 41, and the longitudinal magnetic head 71 are tapered.
It should be noted that, the first magnetic head 51, the second magnetic head 41 and the longitudinal magnetic head 71 are made into a cone shape, so that the magnetic heads are not easy to touch during adjustment, the whole body is made more compact during installation, and the magnetic field generated when the coil is electrified is wider.
Referring to fig. 3, in the present embodiment, a first fixing frame 8 is fixed at the bottom of the first electromagnet 5, the first fixing frame 8 is movably disposed on the supporting frame 1, and the first fixing frame 8 is used for driving the first electromagnet 5 to move left and right.
It should be noted that, the support frame 1 is provided with the first chute 9, the first fixing frame 8 can drive the first electromagnet 5 to move along the X direction in the first chute 9, so as to change the range of the magnetic field in the X direction, the first fixing frame 8 is provided with the first opening 81, the first electromagnet 5 can be fixed on the first opening 81, wherein, a servo motor, a stepping motor or an air cylinder can be adopted to drive the first electromagnet 5 to move in the first chute 9, and no specific limitation is made here, but these schemes are all within the protection scope of the present invention.
Referring to fig. 3, in the present embodiment, a second fixed frame 3 is fixed at the bottom of the second electromagnet 4, the second fixed frame 3 is movably disposed on the supporting frame 1, and the second fixed frame 3 is used for driving the second electromagnet 4 to move left and right.
It should be noted that, the support frame 1 is provided with the second chute 2, the second fixing frame 3 can drive the second electromagnet 4 to move along the Y direction in the second chute 2, so as to change the range of the magnetic field in the Y direction, the second fixing frame 3 is provided with the second opening 31, the second electromagnet 4 can be fixed on the second opening 31, wherein, a servo motor, a stepping motor or an air cylinder can be adopted to drive the second electromagnet 4 to move in the second chute 2, and no specific limitation is made here, but these schemes are all within the protection scope of the present invention.
Referring to fig. 4, in the present embodiment, a longitudinal fixing frame 6 is fixed at the bottom of the longitudinal electromagnet 7, and the longitudinal fixing frame 6 is used for driving the longitudinal electromagnet 7 to move up and down.
It should be noted that, be provided with vertical spout on the support frame 1, vertical fixed frame 6 can drive vertical electromagnet 7 is in move along the Z direction in the vertical spout, change the scope in Z direction magnetic field, be provided with third trompil 61 on vertical fixed frame 6, vertical electromagnet 7 can be fixed on third trompil 61, wherein, can adopt servo motor, step motor or cylinder to drive vertical electromagnet 7 is in move in the vertical spout, do not do the specific restriction here, but these schemes all are in the utility model discloses a protection scope.
In this embodiment, the first magnet assembly and the second magnet assembly are disposed on the same horizontal plane.
The first magnet assembly and the second magnet assembly are arranged on the same horizontal plane, so that the accuracy of the magnetic field in the X and Y directions is ensured.
In the present embodiment, the first pitch is equal to the second pitch, the longitudinal electromagnet 7 is disposed below a midpoint of the first pitch, and the distance from the longitudinal electromagnet 7 to the midpoint is 1/2 of the first pitch.
It should be noted that, in other embodiments, the first distance and the second distance may not be equal, and the distance between the longitudinal electromagnet 7 and the midpoint may also be changed correspondingly, and may be set correspondingly according to the actual situation, where no specific setting is made, but these schemes are all within the protection scope of the present invention.
Based on the three-dimensional gradient magnetic field generating device provided by the utility model, the longitudinal electromagnet 7 and the horizontal magnet are electrified through the programmable current source, so that the first magnet assembly generates a magnetic field in the X direction, the second magnet assembly generates a magnetic field in the Y direction, the longitudinal electromagnet 7 generates a magnetic field in the Z direction, the intensity of the magnetic field can be changed by changing the magnitude of the output current through the programmable current source, the magnitude of the first distance and the second distance can be changed through the first fixing frame 8 and the second fixing frame 3 (namely, the magnetic field range in the XY direction can be adjusted), the distance from the longitudinal magnetic head 71 to the central point can be changed through the setting of the longitudinal fixing frame 6 (namely, the magnetic field range in the Z direction can be adjusted), the magnetic head is set to be conical, the magnetic field generated by the device is larger, and the magnets are not easy to touch, the structure is more compact, and the problem that the existing magnetic field generating device is difficult to regulate and control the magnetic field in a three-dimensional region is solved.
Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection.
Claims (10)
1. A three-dimensional gradient magnetic field generating device, comprising: the device comprises a support frame, a horizontal magnet assembly arranged on the support frame, a longitudinal electromagnet arranged in the support frame, and a programmable current source electrically connected with the horizontal magnet assembly and the longitudinal electromagnet;
the horizontal magnet assembly includes: a first magnet assembly and a second magnet assembly;
the first magnet assembly comprises two first electromagnets which are coaxially and symmetrically arranged at a first interval, and the second magnet assembly comprises two second electromagnets which are coaxially and symmetrically arranged at a second interval; the longitudinal electromagnets are arranged below the horizontal magnet assembly at a certain distance.
2. The three-dimensional gradient magnetic field generating device according to claim 1, wherein the first electromagnet assembly comprises: the electromagnetic device comprises a first electromagnetic core, a first electromagnetic coil sleeved on the first electromagnetic core and a first magnetic head arranged at the top of the first electromagnetic core.
3. The three-dimensional gradient magnetic field generating device according to claim 2, wherein the second electromagnet assembly comprises: the second electromagnetic core, the second electromagnetic coil sleeved on the second electromagnetic core and the second magnetic head arranged at the top of the second electromagnetic core.
4. A three-dimensional gradient magnetic field generating apparatus according to claim 3, wherein said longitudinal electromagnet comprises: the magnetic head comprises a longitudinal electromagnetic iron core, a longitudinal electromagnetic coil sleeved on the longitudinal electromagnetic iron core and a longitudinal magnetic head arranged at the top of the longitudinal electromagnetic iron core.
5. The three-dimensional gradient magnetic field generator as claimed in claim 4, wherein the first magnetic head, the second magnetic head and the longitudinal magnetic head are tapered.
6. The three-dimensional gradient magnetic field generator according to claim 2, wherein a first fixing frame is fixed at the bottom of the first electromagnet, the first fixing frame is movably disposed on the supporting frame, and the first fixing frame is used for driving the first electromagnet to move left and right.
7. The three-dimensional gradient magnetic field generator according to claim 3, wherein a second fixed frame is fixed at the bottom of the second electromagnet, the second fixed frame is movably disposed on the support frame, and the second fixed frame is used for driving the second electromagnet to move left and right.
8. The three-dimensional gradient magnetic field generation device of claim 4, wherein a longitudinal fixing frame is fixed at the bottom of the longitudinal electromagnet and is used for driving the longitudinal electromagnet to move up and down.
9. The three-dimensional gradient magnetic field generating apparatus according to claim 1, wherein the first magnet assembly and the second magnet assembly are disposed on the same horizontal plane.
10. The three-dimensional gradient magnetic field generating device according to claim 1, wherein the first distance is equal to the second distance, the longitudinal electromagnet is disposed below a midpoint of the first distance, and the distance from the longitudinal electromagnet to the midpoint is 1/2 of the first distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020367373.3U CN212647986U (en) | 2020-03-20 | 2020-03-20 | Three-dimensional gradient magnetic field generating device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020367373.3U CN212647986U (en) | 2020-03-20 | 2020-03-20 | Three-dimensional gradient magnetic field generating device |
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| CN212647986U true CN212647986U (en) | 2021-03-02 |
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| CN202020367373.3U Expired - Fee Related CN212647986U (en) | 2020-03-20 | 2020-03-20 | Three-dimensional gradient magnetic field generating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113488309A (en) * | 2021-07-09 | 2021-10-08 | 澳门大学 | Rotating magnetic field generator and robot |
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2020
- 2020-03-20 CN CN202020367373.3U patent/CN212647986U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113488309A (en) * | 2021-07-09 | 2021-10-08 | 澳门大学 | Rotating magnetic field generator and robot |
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Granted publication date: 20210302 |