Samarium cobalt magnetic steel for instruments and meters

Abstract

The utility model relates to the technical field of samarium cobalt magnetic steel, and discloses samarium cobalt magnetic steel for instruments and meters, which comprises a magnetic steel main body, a groove is arranged on the surface of the magnetic steel main body, a heat conduction column is fixedly connected to the inner wall of the groove, and an inner cylinder is fixedly connected to the bottom of the magnetic steel main body. First transverse plates are fixedly connected to the surface of the inner cylinder, the bottom of the magnetic steel body and the bottom of the heat conduction column, a second transverse plate is fixedly connected to the surface of the inner cylinder, outer cylinders are fixedly connected to the upper surface of the second transverse plate and the bottoms of the first transverse plates, and mounting holes are formed in the first transverse plates. According to the samarium-cobalt magnetic steel, through cooperation of the magnetic steel body, the groove, the heat conduction column, the inner cylinder, the first transverse plate, the second transverse plate, the outer cylinder, the mounting hole, the cooling fan, the first air hole and the second air hole, heat of the magnetic steel body can be rapidly dissipated, and therefore magnetism of the samarium-cobalt magnetic steel cannot be reduced due to the fact that the temperature is too high.

Description

Technical Field

[0001] The utility model relates to the technical field of samarium cobalt magnets, in particular to a samarium cobalt magnet for instruments and meters. Background Art

[0002] Samarium cobalt magnet, also known as samarium cobalt magnetic steel, samarium cobalt permanent magnet, samarium cobalt permanent magnet, rare earth cobalt permanent magnet, etc., is a magnetic material made of samarium, cobalt and other metal rare earth materials through proportioning, melting into alloy, crushing, pressing and sintering. It has high magnetic energy product and extremely low temperature coefficient. The maximum operating temperature can reach 350℃, and there is no limit to negative temperature. When the operating temperature is above 180℃, its temperature stability and chemical stability exceed those of neodymium iron boron permanent magnet materials.

[0003] At present, most of the samarium cobalt magnets used in instruments and meters are provided with a protective cover on the outside of the samarium cobalt magnet to prevent the samarium cobalt magnet from being easily damaged by external forces. For example, a high remanent magnet samarium cobalt magnet used in instruments and meters is disclosed in Chinese Patent Publication No. CN214226661U. However, since the samarium cobalt magnet is wrapped in the protective cover, the heat of the samarium cobalt magnet cannot be quickly dissipated, so that the magnetism of the samarium cobalt magnet is often reduced due to excessive temperature when in use. At the same time, since the protective cover is provided with a limit column for positioning, the user needs to stretch the protective cover before putting the protective cover on the magnet or removing it from the magnet, which makes it more troublesome to disassemble and assemble the protective cover. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, such as: at present, most of the samarium cobalt magnets used in instruments and meters are provided with a protective sleeve on the outside of the samarium cobalt magnet to prevent the samarium cobalt magnet from being easily damaged by external forces. However, since the samarium cobalt magnet is wrapped in the protective sleeve, the heat of the samarium cobalt magnet cannot be quickly dissipated, so that the magnetism of the samarium cobalt magnet is often reduced due to excessive temperature when in use. At the same time, since the protective sleeve is provided with a limit column for positioning, the user needs to stretch the protective sleeve before putting the protective sleeve on the magnet or removing it from the magnet, which makes the protective sleeve more troublesome when disassembling and assembling. A samarium cobalt magnet for instruments and meters is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A samarium-cobalt magnet for instruments and meters comprises a magnet body, a groove is provided on the surface of the magnet body, a heat-conducting column is fixedly connected to the inner wall of the groove, an inner cylinder is fixedly connected to the bottom of the magnet body, a first transverse plate is fixedly connected to the surface of the inner cylinder, the bottom of the magnet body and the bottom of the heat-conducting column, a second transverse plate is fixedly connected to the surface of the inner cylinder, an outer cylinder is fixedly connected to the upper surface of the second transverse plate and the bottom of the first transverse plate, a mounting hole is provided inside the first transverse plate, a cooling fan is fixedly connected to the inner wall of the mounting hole, a first air hole is provided inside the first transverse plate, and a second air hole is provided inside the heat-conducting column.

[0007] Preferably, the center of the inner cylinder and the center of the magnetic steel body are on the same vertical line.

[0008] Preferably, the center of the second air hole is on the same vertical line as the center of the first air hole.

[0009] Preferably, a mounting frame is fixedly connected to the bottom of the second transverse plate.

[0010] Preferably, a protective sleeve is fitted on the surface of the magnetic steel body and the upper surface of the first horizontal plate, a first circular hole is opened inside the first horizontal plate and the second horizontal plate, a threaded barrel is fixedly connected to the inner wall of the first circular hole, a second circular hole is opened inside the protective sleeve, a bolt is fitted on the inner wall of the second circular hole and the upper surface of the protective sleeve, and the surface of the bolt is threadedly connected to the inner wall of the threaded barrel.

[0011] Preferably, a limiting block is bonded to the inner wall of the protective sleeve, a limiting groove is provided on the surface of the magnetic steel body, and the surface of the limiting block contacts the inner wall of the limiting groove.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The utility model can quickly transfer the heat of the magnetic steel body to the thermally conductive column through the heat absorption capacity of the thermally conductive column. At the same time, when the heat dissipation fan is turned on, the heat dissipation fan generates an airflow from bottom to top in the thermally conductive column, and the heat in the thermally conductive column is taken away by the airflow, so that the thermally conductive column can continuously absorb the heat of the magnetic steel body. Then, through the cooperation of the magnetic steel body, the groove, the thermally conductive column, the inner cylinder, the first horizontal plate, the second horizontal plate, the outer cylinder, the mounting hole, the heat dissipation fan, the first air hole and the second air hole, the heat of the magnetic steel body can be quickly dissipated, so that the magnetic properties of the samarium cobalt magnet will not be reduced due to excessive temperature.

[0014] (2) The utility model provides a first circular hole, a threaded barrel, a second circular hole and a bolt, wherein when the bolt is screwed into the threaded barrel, the protective sleeve can be directly fixed on the magnetic steel body through the cooperation between the bolt and the threaded barrel. When the bolt is separated from the threaded barrel, the protective sleeve can be directly separated from the magnetic steel body. Furthermore, through the cooperation between the first circular hole, the threaded barrel, the second circular hole and the bolt, the user does not need to stretch the protective sleeve when disassembling and assembling the protective sleeve, thereby making it more convenient to disassemble and assemble the protective sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a top view of the magnetic steel body in the utility model;

[0017] Figure 3 It is a bottom view of the first horizontal plate in the utility model;

[0018] Figure 4 It is a bottom view of the second horizontal plate in the utility model;

[0019] Figure 5 It is a top view of the protective cover in the utility model.

[0020] In the figure: 1. magnetic steel body; 2. groove; 3. heat-conducting column; 4. inner cylinder; 5. first horizontal plate; 6. second horizontal plate; 7. outer cylinder; 8. mounting hole; 9. cooling fan; 10. first air hole; 11. second air hole; 12. mounting frame; 13. protective cover; 14. first circular hole; 15. threaded cylinder; 16. second circular hole; 17. bolt; 18. limit block; 19. limit groove. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] Embodiment 1:

[0024] Reference Figure 1-4A samarium cobalt magnet for instruments and meters comprises a magnet body 1, a groove 2 is provided on the surface of the magnet body 1, a heat-conducting column 3 is fixedly connected to the inner wall of the groove 2, and the heat of the magnet body 1 can be quickly transferred to the heat-conducting column 3 through the heat absorption capacity of the heat-conducting column 3, an inner cylinder 4 is fixedly connected to the bottom of the magnet body 1, the center of the inner cylinder 4 is on the same vertical line as the center of the magnet body 1, a first horizontal plate 5 is fixedly connected to the surface of the inner cylinder 4, the bottom of the magnet body 1 and the bottom of the heat-conducting column 3, a second horizontal plate 6 is fixedly connected to the surface of the inner cylinder 4, an outer cylinder 7 is fixedly connected to the upper surface of the second horizontal plate 6 and the bottom of the first horizontal plate 5, and the first horizontal plate 5 A mounting hole 8 is provided inside, a cooling fan 9 is fixedly connected to the inner wall of the mounting hole 8, a first air hole 10 is provided inside the first horizontal plate 5, a second air hole 11 is provided inside the heat-conducting column 3, and the center of the second air hole 11 is on the same vertical line as the center of the first air hole 10. When the cooling fan 9 is turned on, the air in the outer cylinder 7 is discharged through the first air hole 10 and enters the second air hole 11. At this time, the heat in the heat-conducting column 3 can be taken away by the airflow from bottom to top in the heat-conducting column 3. A mounting bracket 12 is fixedly connected to the bottom of the second horizontal plate 6, and the samarium cobalt magnet can be installed on instruments through the mounting bracket 12.

[0025] Embodiment 2:

[0026] Reference Figure 1-5 A protective sleeve 13 is fitted on the surface of the magnetic steel body 1 and the upper surface of the first horizontal plate 5. A first circular hole 14 is provided inside the first horizontal plate 5 and inside the second horizontal plate 6. A threaded tube 15 is fixedly connected to the inner wall of the first circular hole 14. A second circular hole 16 is provided inside the protective sleeve 13. A bolt 17 is fitted on the inner wall of the second circular hole 16 and the upper surface of the protective sleeve 13. The surface of the bolt 17 is threadedly connected to the inner wall of the threaded tube 15. When the bolt 17 is screwed into the threaded tube 15, the protective sleeve 13 can be directly fixed on the magnetic steel body 1 through the cooperation of the bolt 17 and the threaded tube 15. When the bolt 17 is separated from the threaded tube 15, the protective sleeve 13 can be directly separated from the magnetic steel body 1. Then, through the cooperation of the first circular hole 14, the threaded tube 15, the second circular hole 16 and the bolt 17, the user does not need to stretch the protective sleeve 13 when disassembling and assembling the protective sleeve 13, thereby making it more convenient to disassemble and assemble the protective sleeve 13.

[0027] The inner wall of the protective sleeve 13 is bonded with a limiting block 18, and the surface of the magnetic steel body 1 is provided with a limiting groove 19. The surface of the limiting block 18 contacts the inner wall of the limiting groove 19. Through the cooperation of the limiting block 18 and the limiting groove 19, the second circular hole 16 on the protective sleeve 13 and the threaded tube 15 can be quickly and accurately aligned.

[0028] In the present invention, when the user uses the samarium cobalt magnet, the heat of the magnetic steel body 1 is first quickly transferred to the thermally conductive column 3 through the heat absorption capacity of the thermally conductive column 3, and then, by turning on the cooling fan 9, an airflow from bottom to top is generated in the thermally conductive column 3, and the heat in the thermally conductive column 3 is taken away by the airflow, so that the thermally conductive column 3 can continuously absorb the heat of the magnetic steel body 1.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A samarium-cobalt magnet for instruments and meters, comprising a magnet body (1), characterized in that: The surface of the magnetic steel body (1) is provided with a groove (2), the inner wall of the groove (2) is fixedly connected with a heat-conducting column (3), the bottom of the magnetic steel body (1) is fixedly connected with an inner cylinder (4), the surface of the inner cylinder (4), the bottom of the magnetic steel body (1) and the bottom of the heat-conducting column (3) are all fixedly connected with a first transverse plate (5), the surface of the inner cylinder (4) is fixedly connected with a second transverse plate (6), the upper surface of the second transverse plate (6) and the bottom of the first transverse plate (5) are both fixedly connected with an outer cylinder (7), the interior of the first transverse plate (5) is provided with a mounting hole (8), the inner wall of the mounting hole (8) is fixedly connected with a cooling fan (9), the interior of the first transverse plate (5) is provided with a first air hole (10), and the interior of the heat-conducting column (3) is provided with a second air hole (11).

2. The samarium cobalt magnet for instruments and meters according to claim 1, characterized in that: The center of the inner cylinder (4) and the center of the magnetic steel body (1) are on the same vertical line.

3. The samarium cobalt magnet for instruments and meters according to claim 1, characterized in that: The center of the second air hole (11) and the center of the first air hole (10) are on the same vertical line.

4. The samarium cobalt magnet for instruments and meters according to claim 1, characterized in that: A mounting frame (12) is fixedly connected to the bottom of the second transverse plate (6).

5. The samarium cobalt magnet for instruments and meters according to claim 1, characterized in that: A protective sleeve (13) is fitted on the surface of the magnetic steel body (1) and the upper surface of the first transverse plate (5); a first circular hole (14) is provided inside the first transverse plate (5) and inside the second transverse plate (6); a threaded tube (15) is fixedly connected to the inner wall of the first circular hole (14); a second circular hole (16) is provided inside the protective sleeve (13); a bolt (17) is fitted on the inner wall of the second circular hole (16) and the upper surface of the protective sleeve (13); and the surface of the bolt (17) is threadedly connected to the inner wall of the threaded tube (15).

6. The samarium cobalt magnet for instruments and meters according to claim 5, characterized in that: A limiting block (18) is bonded to the inner wall of the protective sleeve (13), a limiting groove (19) is provided on the surface of the magnetic steel body (1), and the surface of the limiting block (18) contacts the inner wall of the limiting groove (19).

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