High-temperature-resistant samarium cobalt magnetic steel

Abstract

The utility model relates to the technical field of samarium-cobalt magnetic steel, and discloses high-temperature-resistant samarium-cobalt magnetic steel which comprises a magnetic steel body, the inner wall of the magnetic steel body is fixedly connected with a connecting plate, and the side, away from the magnetic steel body, of the connecting plate is fixedly connected with a first cylinder. Combined cooling fins are arranged on the surface of the first cylinder and the upper surface of the connecting plate in an attached mode, a U-shaped plate is fixedly connected to the upper surface of the magnetic steel body, and a positioning groove is formed in the surface of the first cylinder. Through cooperation of the magnetic steel main body, the connecting plate, the first cylinder, the U-shaped plate, the positioning groove, the baffle plate, the threaded hole, the through hole and the bolt, the first cylinder and the combined cooling fin can be disassembled and assembled, and meanwhile, through disassembly and assembly of the first auxiliary cooling ring or the second auxiliary cooling ring on the combined cooling fin, the cooling capacity of the combined cooling fin can be changed, and the service life of the combined cooling fin is prolonged. And the heat dissipation capability of the cobalt magnetic steel can be adjusted as required.

Description

Technical Field

[0001] The utility model relates to the technical field of samarium cobalt magnetic steel, in particular to a high temperature resistant samarium cobalt magnetic steel. Background Art

[0002] Samarium cobalt magnet is a rare earth magnet. It is a magnetic tool material made of samarium, cobalt and other rare earth metal materials after proportioning, melting into alloy, crushing, pressing and sintering. It has high magnetic energy product and extremely low temperature coefficient. The maximum working temperature can reach 350℃, and there is no limit to negative temperature. When the working temperature is above 180℃, its maximum magnetic energy product, coercivity, temperature stability and chemical stability are all higher than those of neodymium iron boron permanent magnet materials. It has strong corrosion resistance and oxidation resistance; therefore, it is widely used in aerospace, microwave devices, communications, medical equipment, instruments, meters, various magnetic transmission devices, sensors, magnetic processors, motors, magnetic cranes, etc.

[0003] At present, most of the high-temperature resistant samarium cobalt magnets on the market use heat-conducting columns, heat-conducting sheets and heat sinks to quickly dissipate the heat inside the samarium cobalt magnets. For example, Chinese patent publication No. CN214281047U discloses a high-temperature resistant samarium cobalt magnet for high-temperature motors. However, since the shape of the heat sink is fixed, the heat dissipation capacity of the samarium cobalt magnet cannot be adjusted as needed, which reduces the application range of the samarium cobalt magnet. 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 high-temperature resistant samarium cobalt magnets on the market use the combination of heat-conducting columns, heat-conducting sheets and heat sinks to quickly dissipate the heat inside the samarium cobalt magnets, but since the shape of the heat sink is fixed, the heat dissipation capacity of the samarium cobalt magnet cannot be adjusted as needed, so that the application range of the samarium cobalt magnet is relatively small, and a high-temperature resistant samarium cobalt magnet is proposed.

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

[0006] A high-temperature resistant samarium-cobalt magnet comprises a magnet body, the inner wall of the magnet body is fixedly connected with a connecting plate, the connecting plate is fixedly connected with a first cylinder on a side away from the magnet body, the surface of the first cylinder and the upper surface of the connecting plate are both fitted with a combined heat sink, the upper surface of the magnet body is fixedly connected with a U-shaped plate, the surface of the first cylinder is provided with a positioning groove, the inner wall of the positioning groove, the combined heat sink, the inner wall of the U-shaped plate and the upper surface of the magnet body are all fitted with a baffle, a threaded hole is provided inside the baffle, a through hole is provided on the upper surface of the U-shaped plate, the inner wall of the through hole and the upper surface of the U-shaped plate are both fitted with bolts, the surface of the bolt is threadedly connected to the inner wall of the threaded hole, the inner wall of the magnet body is fitted with a heat conduction groove, the surface of the combined heat sink and the inner wall of the magnet body are both fitted with an arc-shaped heat conduction plate, the surface of the arc-shaped heat conduction plate is fixedly connected with a heat conduction column, and the surface of the heat conduction column contacts the inner wall of the heat conduction groove.

[0007] Preferably, the combined heat sink includes a main heat sink ring, the surface of the arc-shaped heat conductive plate, the upper surface of the connecting plate and the bottom of the baffle are all in contact with the surface of the main heat sink ring, the inner wall of the main heat sink ring, the upper surface of the connecting plate and the bottom of the baffle are all fitted with a first auxiliary heat sink ring, the inner wall of the first auxiliary heat sink ring, the surface of the first cylinder, the upper surface of the connecting plate and the bottom of the baffle are all fitted with a second auxiliary heat sink ring, and the interior of the main heat sink ring, the interior of the first auxiliary heat sink ring and the interior of the second auxiliary heat sink ring are all provided with heat dissipation holes.

[0008] Preferably, the inner wall of the first cylinder is fitted with a second cylinder, and push plates are fixedly connected to the left and right sides of the second cylinder. Strip holes are opened on the left and right sides of the first cylinder, and the inner walls of the strip holes, the bottom of the main heat dissipation ring, the bottom of the first auxiliary heat dissipation ring and the bottom of the second auxiliary heat dissipation ring are all in contact with the upper surface of the push plate.

[0009] Preferably, the height of the strip-shaped hole is greater than the thickness of the push plate.

[0010] Preferably, the upper surface of the first cylinder and the upper surface of the second cylinder are in the same horizontal plane, and the height of the first cylinder is smaller than the height of the second cylinder.

[0011] Preferably, the axis of the heat-conducting column and the center of the magnetic steel body are in the same horizontal plane.

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

[0013] (1) The utility model enables the first cylinder and the combined heat sink to be disassembled and assembled through the cooperation of the magnetic steel body, the connecting plate, the first cylinder, the U-shaped plate, the positioning groove, the baffle, the threaded hole, the through hole and the bolt. At the same time, by disassembling and assembling the first auxiliary heat sink ring or the second auxiliary heat sink ring on the combined heat sink, the heat dissipation capacity of the combined heat sink can be changed, thereby allowing the heat dissipation capacity of the cobalt magnetic steel to be adjusted as needed.

[0014] (2) The utility model provides a second cylinder, a push plate and a strip hole, wherein when the samarium cobalt magnet is placed on a maintenance table and the baffle is removed from the magnet body, the magnet body can be moved downward by the gravity of the magnet body, and the top of the combined heat sink can be made higher than the first cylinder by the push plate, thereby making it more convenient for the user to take the main heat sink ring, the first auxiliary heat sink ring or the second auxiliary heat sink ring. 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 structure of the utility model;

[0017] Figure 3 It is a top view of the magnetic steel body in the utility model;

[0018] Figure 4 for Figure 3 Sectional view at AA;

[0019] Figure 5 for Figure 4 Sectional view at the middle BB;

[0020] Figure 6 It is a top view of the combined heat sink in the utility model;

[0021] Figure 7 It is a top view of the baffle in the utility model.

[0022] In the figure: 1. magnetic steel body; 2. connecting plate; 3. first cylinder; 4. combined heat sink; 41. main heat sink ring; 42. first auxiliary heat sink ring; 43. second auxiliary heat sink ring; 44. heat dissipation hole; 5. U-shaped plate; 6. positioning groove; 7. baffle; 8. threaded hole; 9. through hole; 10. bolt; 11. heat conduction groove; 12. arc-shaped heat conduction plate; 13. heat conduction column; 14. second cylinder; 15. push plate; 16. strip hole. DETAILED DESCRIPTION

[0023] 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.

[0024] 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.

[0025] Embodiment 1:

[0026] Reference Figure 1-7 A high temperature resistant samarium cobalt magnet comprises a magnet body 1, the inner wall of the magnet body 1 is fixedly connected with a connecting plate 2, a side of the connecting plate 2 away from the magnet body 1 is fixedly connected with a first cylinder 3, the first cylinder 3 is fixed in the magnet body 1 through the connecting plate 2, the surface of the first cylinder 3 and the upper surface of the connecting plate 2 are both fitted with a combined heat sink 4, the upper surface of the magnet body 1 is fixedly connected with a U-shaped plate 5, a positioning groove 6 is provided on the surface of the first cylinder 3, the inner wall of the positioning groove 6, the combined heat sink 4, the inner wall of the U-shaped plate 5 and the upper surface of the magnet body 1 are all fitted with a baffle 7, a threaded hole 8 is provided inside the baffle 7, a through hole 9 is provided on the upper surface of the U-shaped plate 5, a bolt 10 is fitted on the inner wall of the through hole 9 and the upper surface of the U-shaped plate 5, the surface of the bolt 10 is threadedly connected to the inner wall of the threaded hole 8, and the baffle 7 is fixedly connected to the U-shaped plate 5 and the positioning groove 6. The plate 7 is positioned. When the bolt 10 is screwed into the threaded hole 8, the baffle 7 can be fixed in the U-shaped plate 5 through the cooperation of the bolt 10 and the through hole 9, and the combined heat sink 4 is fixed on the first cylinder 3 through the baffle 7. When the bolt 10 is separated from the threaded hole 8, the baffle 7 can be taken out of the U-shaped plate 5, and the combined heat sink 4 can be taken away from the first cylinder 3. The inner wall of the magnetic steel body 1 is fitted with a heat conduction groove 11, and the surface of the combined heat sink 4 and the inner wall of the magnetic steel body 1 are both fitted with an arc-shaped heat conduction sheet 12. The surface of the arc-shaped heat conduction sheet 12 is fixedly connected with a heat conduction column 13. The surface of the heat conduction column 13 contacts the inner wall of the heat conduction groove 11. The axis of the heat conduction column 13 is in the same horizontal plane as the center of the magnetic steel body 1. Through the cooperation of the heat conduction column 13 and the arc-shaped heat conduction sheet 12, the heat in the magnetic steel body 1 can be quickly transferred to the combined heat sink 4.

[0027] The combined heat sink 4 includes a main heat sink ring 41, the surface of the arc-shaped heat conductive sheet 12, the upper surface of the connecting plate 2 and the bottom of the baffle 7 are all in contact with the surface of the main heat sink ring 41, the inner wall of the main heat sink ring 41, the upper surface of the connecting plate 2 and the bottom of the baffle 7 are all fitted with a first auxiliary heat sink ring 42, the inner wall of the first auxiliary heat sink ring 42, the surface of the first cylinder 3, the upper surface of the connecting plate 2 and the bottom of the baffle 7 are all fitted with a second auxiliary heat sink ring 43, and the interior of the main heat sink ring 41, the interior of the first auxiliary heat sink ring 42 and the interior of the second auxiliary heat sink ring 43 are all provided with heat dissipation holes 44. By disassembling and assembling the first auxiliary heat sink ring 42 or the second auxiliary heat sink ring 43 on the combined heat sink 4, the heat dissipation capacity of the combined heat sink 4 can be changed.

[0028] Embodiment 2:

[0029] Reference Figure 1-5 , the inner wall of the first cylinder 3 is fitted with the second cylinder 14, the upper surface of the first cylinder 3 and the upper surface of the second cylinder 14 are in the same horizontal plane, the height of the first cylinder 3 is less than the height of the second cylinder 14, and the left and right sides of the second cylinder 14 are fixedly connected with push plates 15, and the left and right sides of the first cylinder 3 are provided with strip holes 16, the inner wall of the strip hole 16, the bottom of the main heat dissipation ring 41, the bottom of the first auxiliary heat dissipation ring 42 and the bottom of the second auxiliary heat dissipation ring 43 are all in contact with the upper surface of the push plate 15, and the height of the strip hole 16 is greater than the thickness of the push plate 15. When the samarium cobalt magnet is placed on the maintenance table and the baffle 7 is removed from the magnet body 1, the magnet body 1 can be moved downward by the gravity of the magnet body 1, and the top of the combined heat sink 4 is higher than the first cylinder 3 through the push plate 15, so that it is more convenient for the user to take the main heat dissipation ring 41, the first auxiliary heat dissipation ring 42 or the second auxiliary heat dissipation ring 43.

[0030] In the utility model, when the samarium cobalt magnet is in use, the heat of the magnet body 1 can be quickly transferred to the combined heat sink 4 through the cooperation of the heat conducting column 13 and the arc-shaped heat conducting sheet 12. Then, the combined heat sink 4 exchanges heat with the air to dissipate the heat. At the same time, the heat exchange area between the combined heat sink 4 and the air can be increased through the heat dissipation hole 44, and the heat exchange efficiency of the combined heat sink 4 can be improved. When the user needs to adjust the heat dissipation capacity of the samarium cobalt magnet, first, the bolt 10 is separated from the threaded hole 8 by rotating the bolt 10, and the bolt 10 is removed. 0 is taken out from the through hole 9, and then, by removing the baffle 7 from the U-shaped plate 5, the first auxiliary heat dissipation ring 42 or the second auxiliary heat dissipation ring 43 on the combined heat sink 4 can be disassembled. When the combined heat sink 4 needs to be fixed, the baffle 7 is first inserted into the positioning groove 6 and the U-shaped plate 5, and the threaded hole 8 is aligned with the through hole 9. Then, the bolt 10 is inserted into the through hole 9 and screwed into the threaded hole 8. At this time, the baffle 7 can be fixed to the magnetic steel body 1 through the bolt 10, and the combined heat sink 4 can be fixed to the first cylinder 3 through the baffle 7.

[0031] 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.

[0032] 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 high temperature resistant samarium cobalt magnet, comprising a magnet body (1), characterized in that: The inner wall of the magnetic steel body (1) is fixedly connected to a connecting plate (2); a first cylinder (3) is fixedly connected to a side of the connecting plate (2) away from the magnetic steel body (1); a combined heat sink (4) is fitted on the surface of the first cylinder (3) and the upper surface of the connecting plate (2); a U-shaped plate (5) is fixedly connected to the upper surface of the magnetic steel body (1); a positioning groove (6) is provided on the surface of the first cylinder (3); a baffle (7) is fitted on the inner wall of the positioning groove (6), the combined heat sink (4), the inner wall of the U-shaped plate (5) and the upper surface of the magnetic steel body (1); the inner surface of the baffle (7) is provided with a plurality of A threaded hole (8) is provided, a through hole (9) is opened on the upper surface of the U-shaped plate (5), the inner wall of the through hole (9) and the upper surface of the U-shaped plate (5) are both fitted with bolts (10), the surface of the bolt (10) is threadedly connected to the inner wall of the threaded hole (8), the inner wall of the magnetic steel body (1) is fitted with a heat conduction groove (11), the surface of the combined heat sink (4) and the inner wall of the magnetic steel body (1) are both fitted with an arc-shaped heat conduction plate (12), the surface of the arc-shaped heat conduction plate (12) is fixedly connected with a heat conduction column (13), and the surface of the heat conduction column (13) is in contact with the inner wall of the heat conduction groove (11).

2. The high temperature resistant samarium cobalt magnetic steel according to claim 1, characterized in that: The combined heat sink (4) comprises a main heat sink ring (41); the surface of the arc-shaped heat conducting sheet (12), the upper surface of the connecting plate (2) and the bottom of the baffle (7) are all in contact with the surface of the main heat sink ring (41); the inner wall of the main heat sink ring (41), the upper surface of the connecting plate (2) and the bottom of the baffle (7) are all fitted with a first auxiliary heat sink ring (42); the inner wall of the first auxiliary heat sink ring (42), the surface of the first cylinder (3), the upper surface of the connecting plate (2) and the bottom of the baffle (7) are all fitted with a second auxiliary heat sink ring (43); and heat sink holes (44) are provided inside the main heat sink ring (41), inside the first auxiliary heat sink ring (42) and inside the second auxiliary heat sink ring (43).

3. The high temperature resistant samarium cobalt magnetic steel according to claim 2, characterized in that: The second cylinder (14) is fitted on the inner wall of the first cylinder (3), and push plates (15) are fixedly connected to the left and right sides of the second cylinder (14). Strip holes (16) are opened on the left and right sides of the first cylinder (3), and the inner walls of the strip holes (16), the bottom of the main heat dissipation ring (41), the bottom of the first auxiliary heat dissipation ring (42) and the bottom of the second auxiliary heat dissipation ring (43) are all in contact with the upper surface of the push plate (15).

4. The high temperature resistant samarium cobalt magnetic steel according to claim 3, characterized in that: The height of the strip-shaped hole (16) is greater than the thickness of the push plate (15).

5. The high temperature resistant samarium cobalt magnetic steel according to claim 3, characterized in that: The upper surface of the first cylinder (3) and the upper surface of the second cylinder (14) are in the same horizontal plane, and the height of the first cylinder (3) is smaller than the height of the second cylinder (14).

6. The high temperature resistant samarium cobalt magnetic steel according to claim 1, characterized in that: The axis of the heat-conducting column (13) and the center of the magnetic steel body (1) are in the same horizontal plane.

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