Samarium cobalt magnetic steel with low magnetic declination for automobile sensor

Abstract

The utility model relates to the technical field of samarium-cobalt magnetic steel, and discloses a low magnetic declination samarium-cobalt magnetic steel for an automobile sensor, which comprises a sensor main body, the left side and the right side of the sensor main body are respectively provided with a fixing support in an attached manner, the upper surface of each fixing support is fixedly connected with a first circular ring, and the surface of each first circular ring is fixedly connected with an outer cylinder. The bottom of the fixing support is fixedly connected with an inner cylinder, the surface of the inner cylinder makes contact with the inner wall of the outer cylinder, a first strip-shaped hole is formed in the front face of the outer cylinder, the front face of the outer cylinder and the front face of the inner cylinder are both fixedly connected with adjusting supports, and the surfaces of the adjusting supports make contact with the inner wall of the first strip-shaped hole. According to the samarium-cobalt magnetic steel, the sensor main body can be clamped or loosened by the arc-shaped pressing plate by rotating the first bolt on the adjusting bracket, and meanwhile, the first bolt is positioned outside the outer cylinder, so that the first bolt is relatively convenient to rotate, and the samarium-cobalt magnetic steel and the automobile sensor are relatively convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of samarium cobalt magnets, in particular to a low magnetic declination samarium cobalt magnet for automobile sensors. Background Art

[0002] Electric vehicle sensors are input devices for the car's computer system. They convert various operating information during the car's operation, such as vehicle speed, temperature of various media, engine operating conditions, etc., into electrical signals and transmit them to the computer so that the engine is in the best working condition.

[0003] At present, the samarium cobalt magnets used in automotive sensors provide the sensor with shock absorption capability through the repulsive force between the outer layer of the samarium cobalt magnet and the inner layer of the samarium cobalt magnet, thereby preventing the sensor from being damaged due to vibration and increasing the safety performance of the sensor when in use. For example, a samarium cobalt magnet for an electric vehicle sensor is disclosed in Chinese Patent Publication No. CN208968570U. However, since the samarium cobalt magnet and the sensor are fixed by a clip and the operating space of the clip is reduced, it is more troublesome to separate the samarium cobalt magnet and the sensor. At the same time, since the magnetism of the samarium cobalt magnet is fixed, the shock absorption capability of the samarium cobalt magnet cannot be adjusted according to different usage requirements, resulting in a smaller scope of application 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, since the samarium cobalt magnet and the sensor are fixed by a clamping piece, and the operating space of the clamping piece is reduced, it is more troublesome to separate the samarium cobalt magnet and the sensor; at the same time, since the magnetism of the samarium cobalt magnet is fixed, the shock absorbing ability of the samarium cobalt magnet cannot be adjusted according to different usage requirements, resulting in a smaller application range of the samarium cobalt magnet. A low magnetic declination samarium cobalt magnet for automotive sensors is proposed.

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

[0006] A low magnetic declination samarium cobalt magnet for an automobile sensor comprises a sensor body, wherein a fixing bracket is fitted on both sides of the left and right sides of the sensor body, a first circular ring is fixedly connected to the upper surface of the fixing bracket, an outer cylinder is fixedly connected to the surface of the first circular ring, an inner cylinder is fixedly connected to the bottom of the fixing bracket, the surface of the inner cylinder contacts the inner wall of the outer cylinder, a first strip hole is provided on the front side of the outer cylinder, an adjusting bracket is fixedly connected to the front side of the outer cylinder and the front side of the inner cylinder, the surface of the adjusting bracket contacts the inner wall of the first strip hole, an inner magnetic steel sheet is fixedly connected to both sides of the outer cylinder, a sliding hole is provided on both sides of the left and right sides of the outer cylinder, a second strip hole is provided on both sides of the left and right sides of the inner cylinder, a sliding column is fitted on the inner wall of the sliding hole and the inner wall of the second strip hole, one end of the sliding column is fixedly connected to the outer magnetic steel sheet, and the other end of the sliding column is fixedly connected to the second circular ring.

[0007] Preferably, the fixed bracket includes an arc-shaped pressing plate, the left and right sides of the sensor body are in contact with the side of the arc-shaped pressing plate, the upper and lower sides of the arc-shaped pressing plate are fixedly connected with a first U-shaped plate, the front and rear sides of the inner wall of the first U-shaped plate are fixedly connected with a first cylinder, the surface of the first cylinder and the inner wall of the first U-shaped plate are fitted with a connecting column, the inner wall of the connecting column is fitted with a second cylinder, and the front and rear ends of the second cylinder, the bottom of the first ring and the upper surface of the inner cylinder are fixedly connected with a second U-shaped plate.

[0008] Preferably, the adjustment bracket includes a first bolt, a bearing is fixedly connected to the surface of the first bolt, a first connecting block is fixedly connected to the surface of the bearing and the front of the inner cylinder, the surface of the first connecting block contacts the inner wall of the first strip hole, a threaded cylinder is threadedly connected to the surface of the first bolt, and a second connecting block is fixedly connected to the surface of the threaded cylinder and the front of the outer cylinder.

[0009] Preferably, the second ring is located inside the inner cylinder, and the outer magnetic steel sheet is located outside the outer cylinder.

[0010] Preferably, air holes are provided on both the front and rear sides of the outer cylinder.

[0011] Preferably, an arc-shaped plate is fitted on the side of the outer magnetic steel sheet, a mounting hole is provided inside the arc-shaped plate, a second bolt is threadedly connected to the inner wall of the mounting hole, nuts are fixedly connected to the upper and lower sides of the outer magnetic steel sheet, the inner wall of the nut is threadedly connected to the surface of the second bolt, a third strip hole is provided inside the outer magnetic steel sheet, and an elastic metal ring is fit-fitted on the inner wall of the third strip hole, the side of the arc-shaped plate and the inner magnetic steel sheet.

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

[0013] (1) The utility model is provided with a fixed bracket, a first circular ring, an outer cylinder, an inner cylinder, a first strip hole and an adjusting bracket, wherein when the distance between the first circular ring and the inner cylinder decreases, the first circular ring and the inner cylinder cooperate to enable the fixed bracket to clamp the sensor body, and when the distance between the first circular ring and the inner cylinder increases, the first circular ring and the inner cylinder cooperate to enable the fixed bracket to loosen the sensor body. At the same time, the user can change the distance between the inner cylinder and the first circular ring by rotating the first bolt on the adjusting bracket. Moreover, the first bolt is located outside the outer cylinder, so that the first bolt is more convenient to rotate, and the samarium cobalt magnet and the automobile sensor are more convenient to disassemble and assemble.

[0014] (2) The utility model can fix the elastic metal ring in the third strip hole through the cooperation of the arc plate, the mounting hole, the second bolt and the nut. At the same time, when the elastic metal ring is fixed in the third strip hole, the elastic metal ring can reduce the distance between the inner magnetic steel sheet and the outer magnetic steel sheet, and the resistance on the outer magnetic steel sheet increases. When the elastic metal ring is taken out from the third strip hole, the distance between the inner magnetic steel sheet and the outer magnetic steel sheet can be reduced, and the resistance on the outer magnetic steel sheet decreases. Furthermore, by changing the number of elastic metal rings, the shock absorbing capacity of the samarium cobalt magnet can be changed, so that the shock absorbing capacity of the samarium cobalt magnet can be adjusted as needed. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 for Figure 1 Sectional view at the middle BB;

[0018] Figure 4 It is a schematic diagram of a fixing bracket in the utility model;

[0019] Figure 5 It is a front view of the outer cylinder in the utility model;

[0020] Figure 6 It is a side view of the outer cylinder in the utility model;

[0021] Figure 7 It is a side view of the inner cylinder in the utility model;

[0022] Figure 8 It is a schematic diagram of the adjustment bracket in the utility model;

[0023] Fig. 9 It is a top view of the foreign magnetic steel sheet in the utility model;

[0024] Fig.10It is a front view of the structure of the utility model.

[0025] In the figure: 1. sensor body; 2. fixing bracket; 201. arc-shaped pressing plate; 202. first U-shaped plate; 203. first cylinder; 204. connecting column; 205. second cylinder; 206. second U-shaped plate; 3. first circular ring; 4. outer cylinder; 5. inner cylinder; 6. first strip hole; 7. adjusting bracket; 701. first bolt; 702. bearing; 703. first connecting block; 704. threaded cylinder; 705. second connecting block; 8. inner magnetic steel sheet; 9. sliding hole; 10. second strip hole; 11. sliding column; 12. outer magnetic steel sheet; 13. second circular ring; 14. air hole; 15. arc-shaped plate; 16. mounting hole; 17. second bolt; 18. nut; 19. third strip hole; 20. elastic metal ring. DETAILED DESCRIPTION

[0026] 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.

[0027] 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.

[0028] Embodiment 1:

[0029] Reference Figure 1-10A low magnetic declination samarium cobalt magnet for automobile sensors, comprising a sensor body 1, a fixing bracket 2 is fitted on both the left and right sides of the sensor body 1, a first ring 3 is fixedly connected to the upper surface of the fixing bracket 2, an outer cylinder 4 is fixedly connected to the surface of the first ring 3, an inner cylinder 5 is fixedly connected to the bottom of the fixing bracket 2, the surface of the inner cylinder 5 contacts the inner wall of the outer cylinder 4, the inner cylinder 5 can move up and down in the outer cylinder 4, a first strip hole 6 is opened on the front of the outer cylinder 4, an adjusting bracket 7 is fixedly connected to the front of the outer cylinder 4 and the front of the inner cylinder 5, the surface of the adjusting bracket 7 contacts the inner wall of the first strip hole 6, the left and right sides of the outer cylinder 4 They are fixedly connected with inner magnetic steel sheets 8, sliding holes 9 are opened on the left and right sides of the outer cylinder 4, and second strip holes 10 are opened on the left and right sides of the inner cylinder 5. The inner wall of the sliding hole 9 and the inner wall of the second strip hole 10 are fitted with sliding columns 11, one end of the sliding column 11 is fixedly connected with an outer magnetic steel sheet 12, and the other end of the sliding column 11 is fixedly connected with a second ring 13, the second ring 13 is located in the inner cylinder 5, and the outer magnetic steel sheet 12 is located outside the outer cylinder 4. Through the cooperation of the sliding hole 9 and the sliding column 11, the outer magnetic steel sheet 12 can only move left and right, and the front and back sides of the outer cylinder 4 are opened with air holes 14, and the heat of the sensor body 1 can be discharged through the air holes 14.

[0030] The fixed bracket 2 includes an arc-shaped pressing plate 201, and the left and right sides of the sensor body 1 are in contact with the side of the arc-shaped pressing plate 201. The upper and lower sides of the arc-shaped pressing plate 201 are fixedly connected with the first U-shaped plate 202, and the front and rear sides of the inner wall of the first U-shaped plate 202 are fixedly connected with the first cylinder 203. The surface of the first cylinder 203 and the inner wall of the first U-shaped plate 202 are fitted with a connecting column 204, and the inner wall of the connecting column 204 is fitted with a second cylinder 205. The front and rear ends of the second cylinder 205, the bottom of the first ring 3 and the upper part of the inner cylinder 5 are fixedly connected. A second U-shaped plate 206 is fixedly connected to the surface. When the distance between the inner cylinder 5 and the first ring 3 increases, the distance between the arc pressing plate 201 and the outer cylinder 4 decreases through the cooperation of the first U-shaped plate 202, the first cylinder 203, the connecting column 204, the second cylinder 205 and the second U-shaped plate 206. When the distance between the inner cylinder 5 and the first ring 3 decreases, the distance between the arc pressing plate 201 and the outer cylinder 4 increases through the cooperation of the first U-shaped plate 202, the first cylinder 203, the connecting column 204, the second cylinder 205 and the second U-shaped plate 206.

[0031] The adjusting bracket 7 includes a first bolt 701, a bearing 702 is fixedly connected to the surface of the first bolt 701, a first connecting block 703 is fixedly connected to the surface of the bearing 702 and the front of the inner cylinder 5, the surface of the first connecting block 703 contacts the inner wall of the first strip hole 6, the first connecting block 703 can slide up and down in the first strip hole 6, a threaded tube 704 is threadedly connected to the surface of the first bolt 701, a second connecting block 705 is fixedly connected to the surface of the threaded tube 704 and the front of the outer cylinder 4, and when the first bolt 701 rotates, the inner cylinder 5 can move upward or downward through the cooperation of the first bolt 701 and the threaded tube 704.

[0032] Embodiment 2:

[0033] Reference Figure 1-10 The side of the outer magnetic steel sheet 12 is fitted with an arc plate 15, a mounting hole 16 is provided inside the arc plate 15, and a second bolt 17 is threadedly connected to the inner wall of the mounting hole 16. Nuts 18 are fixedly connected to the upper and lower sides of the outer magnetic steel sheet 12, and the inner wall of the nut 18 is threadedly connected to the surface of the second bolt 17. A third strip hole 19 is provided inside the outer magnetic steel sheet 12, and an elastic metal ring 20 is fitted on the inner wall of the third strip hole 19, the side of the arc plate 15 and the inner magnetic steel sheet 8. Through the cooperation of the arc plate 15, the mounting hole 16, the second bolt 17 and the nut 18, the elastic The metal ring 20 is fixed in the third strip hole 19. At the same time, when the elastic metal ring 20 is fixed in the third strip hole 19, the elastic metal ring 20 can reduce the distance between the inner magnetic steel sheet 8 and the outer magnetic steel sheet 12, and the resistance encountered by the outer magnetic steel sheet 12 increases. When the elastic metal ring 20 is taken out from the third strip hole 19, the distance between the inner magnetic steel sheet 8 and the outer magnetic steel sheet 12 can be reduced, and the resistance encountered by the outer magnetic steel sheet 12 is reduced. Furthermore, by changing the number of elastic metal rings 20, the shock absorbing capacity of the samarium cobalt magnet can be changed, so that the shock absorbing capacity of the samarium cobalt magnet can be adjusted as needed.

[0034] In the utility model, when the user uses the samarium cobalt magnet, the user first rotates the first bolt 701 to increase the distance between the inner cylinder 5 and the first ring 3 to a maximum value under the cooperation of the first bolt 701 and the threaded cylinder 704, and reduces the distance between the arc-shaped pressing plate 201 and the outer cylinder 4 to a minimum value through the cooperation of the arc-shaped pressing plate 201, the first cylinder 203, the first U-shaped plate 202, the connecting column 204, the second cylinder 205 and the second U-shaped plate 206. Then, the outer cylinder 4 is sleeved on the sensor body 1, and the first bolt 701 is rotated to gradually reduce the distance between the inner cylinder 5 and the first ring 3 under the cooperation of the first bolt 701 and the threaded cylinder 704, and reduces the distance between the arc-shaped pressing plate 201 and the outer cylinder 4 through the cooperation of the arc-shaped pressing plate 201, the first cylinder 203, the first U-shaped plate 202, the connecting column 204, the second cylinder 205 and the second U-shaped plate 206. The distance between the inner cylinder 5 and the first ring 3 gradually increases. When the arc-shaped pressing plate 201 clamps the sensor body 1, the first bolt 701 is stopped from rotating, and the outer cylinder 4 is fixed on the sensor body 1 through the clamping force of the arc-shaped pressing plate 201 on the sensor body 1. At this time, the mutual repulsion between the outer magnetic steel sheet 12 and the inner magnetic steel sheet 8 provides the sensor body 1 with shock absorption ability. When the samarium cobalt magnet needs to be disassembled, the first bolt 701 is rotated to gradually increase the distance between the inner cylinder 5 and the first ring 3 under the cooperation of the first bolt 701 and the threaded cylinder 704, and the distance between the arc-shaped pressing plate 201 and the outer cylinder 4 is gradually reduced through the cooperation of the arc-shaped pressing plate 201, the first cylinder 203, the first U-shaped plate 202, the connecting column 204, the second cylinder 205 and the second U-shaped plate 206. When the arc-shaped pressing plate 201 releases the sensor body 1, the samarium cobalt magnet can be separated from the sensor body 1.

[0035] 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.

[0036] 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 low magnetic declination samarium cobalt magnet for automobile sensors, comprising a sensor body (1), characterized in that: The left and right sides of the sensor body (1) are fitted with fixed brackets (2); the upper surface of the fixed bracket (2) is fixedly connected to a first ring (3); the surface of the first ring (3) is fixedly connected to an outer cylinder (4); the bottom of the fixed bracket (2) is fixedly connected to an inner cylinder (5); the surface of the inner cylinder (5) is in contact with the inner wall of the outer cylinder (4); the front of the outer cylinder (4) is provided with a first strip hole (6); the front of the outer cylinder (4) and the front of the inner cylinder (5) are fixedly connected to an adjustment bracket (7); the adjustment bracket (7) is fixedly connected to the outer cylinder (4) and the front of the inner cylinder (5 ... inner cylinder (4) and the front of the inner cylinder (5); the adjustment bracket (7) is fixedly connected to the inner cylinder (4) and the front of the inner cylinder (5); the adjustment bracket (7) is fixedly connected to the inner cylinder (5) and the front of the outer cylinder (4) and the front of the inner cylinder (5); the adjustment bracket (7) is fixedly connected to the inner cylinder (5) and the bottom of the fixed bracket (2); the inner cylinder (5) is fixedly connected to the inner cylinder (4) and the bottom of the fixed bracket (2); the inner cylinder (5) is fixedly connected to the inner cylinder (4) and the bottom of the The surface of the frame (7) contacts the inner wall of the first strip hole (6), the left and right sides of the outer cylinder (4) are fixedly connected with the inner magnetic steel sheet (8), the left and right sides of the outer cylinder (4) are provided with sliding holes (9), the left and right sides of the inner cylinder (5) are provided with second strip holes (10), the inner walls of the sliding holes (9) and the inner walls of the second strip holes (10) are fitted with sliding columns (11), one end of the sliding column (11) is fixedly connected with the outer magnetic steel sheet (12), and the other end of the sliding column (11) is fixedly connected with the second ring (13).

2. The low magnetic declination samarium cobalt magnet for automobile sensors according to claim 1, characterized in that: The fixed bracket (2) comprises an arc-shaped pressing plate (201), the left and right sides of the sensor body (1) are in contact with the side of the arc-shaped pressing plate (201), the upper and lower sides of the arc-shaped pressing plate (201) are fixedly connected to a first U-shaped plate (202), the front and rear sides of the inner wall of the first U-shaped plate (202) are fixedly connected to a first cylinder (203), the surface of the first cylinder (203) and the inner wall of the first U-shaped plate (202) are fitted with a connecting column (204), the inner wall of the connecting column (204) is fitted with a second cylinder (205), and the front and rear ends of the second cylinder (205), the bottom of the first ring (3) and the upper surface of the inner cylinder (5) are fixedly connected to a second U-shaped plate (206).

3. The low magnetic declination samarium cobalt magnet for automobile sensors according to claim 1, characterized in that: The adjustment bracket (7) comprises a first bolt (701), the surface of the first bolt (701) is fixedly connected to a bearing (702), the surface of the bearing (702) and the front surface of the inner cylinder (5) are both fixedly connected to a first connection block (703), the surface of the first connection block (703) is in contact with the inner wall of the first strip hole (6), the surface of the first bolt (701) is threadedly connected to a threaded cylinder (704), and the surface of the threaded cylinder (704) and the front surface of the outer cylinder (4) are both fixedly connected to a second connection block (705).

4. The low magnetic declination samarium cobalt magnet for automobile sensors according to claim 1, characterized in that: The second circular ring (13) is located inside the inner cylinder (5), and the outer magnetic steel sheet (12) is located outside the outer cylinder (4).

5. The low magnetic declination samarium cobalt magnet for automobile sensors according to claim 1, characterized in that: Air holes (14) are provided on both the front and rear sides of the outer cylinder (4).

6. The low magnetic declination samarium cobalt magnet for automobile sensors according to claim 1, characterized in that: The side surface of the outer magnetic steel sheet (12) is fitted with an arc plate (15), a mounting hole (16) is provided inside the arc plate (15), the inner wall of the mounting hole (16) is threadedly connected with a second bolt (17), the upper and lower sides of the outer magnetic steel sheet (12) are fixedly connected with nuts (18), the inner wall of the nut (18) is threadedly connected with the surface of the second bolt (17), the inner surface of the outer magnetic steel sheet (12) is provided with a third strip hole (19), and the inner wall of the third strip hole (19), the side surface of the arc plate (15) and the inner magnetic steel sheet (8) are all fitted with an elastic metal ring (20).

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