Samarium cobalt magnetic steel for electric vehicle sensor

Abstract

The utility model relates to the technical field of samarium-cobalt magnetic steel, and discloses samarium-cobalt magnetic steel for an electric automobile sensor, which comprises a magnetic steel cylinder, an arc-shaped magnetic steel plate is arranged in the magnetic steel cylinder, limiting columns are attached to the upper side and the lower side of the arc-shaped magnetic steel plate, one end of each limiting column is fixedly connected with the inner wall of the magnetic steel cylinder, and the other end of each limiting column is fixedly connected with the inner wall of the magnetic steel cylinder. The other end of the limiting column is fixedly connected with a circular ring, the inner wall of the arc-shaped magnetic steel plate is fixedly connected with a rectangular block, an arc-shaped hole is formed in the rectangular block, and a sliding ring is arranged on the inner wall of the arc-shaped hole. According to the utility model, through cooperation of the magnetic steel cylinder, the arc-shaped magnetic steel plate, the limiting column, the circular ring, the rectangular block, the arc-shaped hole, the slip ring, the connecting column and the first cylinder, the vibration of the sensor main body in any direction can change the distance between the magnetic steel cylinder and the arc-shaped magnetic steel plate, so that the samarium-cobalt magnetic steel can suppress the vibration of the sensor main body in any direction; therefore, the damping effect of the samarium-cobalt magnetic steel is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of samarium cobalt permanent magnets, in particular to a samarium cobalt permanent magnet for an electric vehicle sensor. Background Art

[0002] An electric vehicle sensor is an input device of an automobile computer system. It converts various operating conditions information during the operation of the vehicle, such as vehicle speed, temperature of various media, engine operating conditions, etc., into electrical signals and transmits them to the computer so that the engine is in the best working state.

[0003] At present, most of the samarium cobalt permanent magnets for electric vehicle sensors on the market provide the shock absorption ability for the sensor through the mutual repulsive force between the inner and outer permanent magnets, avoiding the sensor being damaged by collision and increasing the safety performance during the use of the sensor. For example, a samarium cobalt permanent magnet for an electric vehicle sensor disclosed in Chinese Patent Publication No. CN208968570U. However, since the sensor can only move horizontally within the samarium cobalt permanent magnet, the samarium cobalt permanent magnet can only weaken the vibration of the sensor in the horizontal direction, resulting in poor shock absorption effect due to the single shock absorption direction. At the same time, since the clamping member for fixing the samarium cobalt permanent magnet and the sensor is located within the samarium cobalt permanent magnet, it is more troublesome to disassemble and assemble the samarium cobalt permanent magnet and the sensor. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the defects existing in the prior art, such as: at present, since the sensor can only move horizontally within the samarium cobalt permanent magnet, the samarium cobalt permanent magnet can only weaken the vibration of the sensor in the horizontal direction, resulting in poor shock absorption effect due to the single shock absorption direction. At the same time, since the clamping member for fixing the samarium cobalt permanent magnet and the sensor is located within the samarium cobalt permanent magnet, it is more troublesome to disassemble and assemble the samarium cobalt permanent magnet and the sensor. A samarium cobalt permanent magnet for an electric vehicle sensor is proposed.

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

[0006] A samarium cobalt permanent magnet for an electric vehicle sensor, comprising a magnet cylinder, an arc-shaped magnetic steel plate is arranged inside the magnet cylinder, limiting columns are respectively arranged on the upper and lower sides of the arc-shaped magnetic steel plate in a fitting manner, one end of the limiting column is fixedly connected with the inner wall of the magnet cylinder, the other end of the limiting column is fixedly connected with a ring, a rectangular block is fixedly connected to the inner wall of the arc-shaped magnetic steel plate, an arc-shaped hole is opened inside the rectangular block, a sliding ring is arranged on the inner wall of the arc-shaped hole, a connecting column is fixedly connected to the inner wall of the sliding ring, one end of the connecting column is fixedly connected with a first cylinder, a sensor body is arranged in a fitting manner inside the first cylinder, springs are respectively fixedly connected to the surface of the first cylinder and the inner wall of the magnet cylinder, a fixing bracket is arranged in a fitting manner on the surface of the sensor body, and the inner wall of the fixing bracket is fixedly connected with the surface of the first cylinder.

[0007] Preferably, the fixing bracket includes a support ring, an internally threaded cylinder is fixedly connected to the upper surface of the support ring, an externally threaded cylinder is threadedly connected to the inner wall of the internally threaded cylinder, second cylinders are fixedly connected to the upper surface of the support ring and the surface of the first cylinder, the surface of the second cylinder is in contact with the inner wall of the externally threaded cylinder, a sliding hole is formed in the second cylinder, T-shaped blocks are fitted on the inner wall of the sliding hole and the surface of the sensor body, a trapezoidal groove is formed in the upper surface of the T-shaped block, a third cylinder is fitted on the inner wall of the trapezoidal groove, the upper surface of the third cylinder is fixedly connected to the bottom of the externally threaded cylinder, and a rotating block is fixedly connected to the surface of the externally threaded cylinder.

[0008] Preferably, a trapezoidal block is fixedly connected to the upper surface of the T-shaped block, and the upper surface of the trapezoidal block is an inclined surface.

[0009] Preferably, the centers of the magnet steel cylinder, the circular arc-shaped magnet steel plate, and the first cylinder are on the same vertical line.

[0010] Preferably, the rotating block is a hollow regular hexagonal block, and the center of the rotating block and the axis of the externally threaded cylinder are on the same vertical line.

[0011] Preferably, the axis of the third cylinder and the axis of the externally threaded cylinder are on the same vertical line.

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

[0013] (1) Through the cooperation of the magnet steel cylinder, the arc-shaped magnet steel plate, the limiting column, the ring, the rectangular block, the arc-shaped hole, the sliding ring, the connecting column and the first cylinder, the distance between the magnet steel cylinder and the arc-shaped magnet steel plate can be changed by the vibration of the sensor body in any direction, so that the samarium-cobalt magnet can suppress the vibration of the sensor body in any direction, thereby improving the damping effect of the samarium-cobalt magnet.

[0014] (2) Through the cooperation of the support ring, the internally threaded cylinder, the externally threaded cylinder, the second cylinder, the sliding hole, the T-shaped block, the trapezoidal groove, the third cylinder and the rotating block, the user can clamp or loosen the sensor body by rotating the rotating block. Moreover, the rotating block is located outside the magnet steel cylinder, so that the disassembly and assembly between the samarium-cobalt magnet and the sensor body are relatively convenient. At the same time, through the inclined surface on the trapezoidal block, when the user inserts the sensor body into the first cylinder, the T-shaped block can be automatically pushed away, so that the user can smoothly insert the T-shaped block into the first cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 isFigure 1 Cross-sectional view taken along line A-A in [the figure];

[0017] Figure 3 Top view of the arc-shaped magnetic steel plate in the present utility model;

[0018] Figure 4 Front view of the fixing bracket in the present utility model;

[0019] Figure 5 is Figure 4 Cross-sectional view taken along line B-B in [the figure];

[0020] Figure 6 Top view of the rotating block in the present utility model.

[0021] In the figure: 1, magnetic steel cylinder; 2, arc-shaped magnetic steel plate; 3, limit post; 4, ring; 5, rectangular block; 6, arc-shaped hole; 7, slip ring; 8, connecting column; 9, first cylinder; 10, sensor main body; 11, spring; 12, fixing bracket; 121, support ring; 122, internal thread cylinder; 123, external thread cylinder; 124, second cylinder; 125, sliding hole; 126, T-shaped block; 127, trapezoidal groove; 128, third cylinder; 129, rotating block; 13, trapezoidal block. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0024] Embodiment 1:

[0025] Refer to Figures 1-6, A samarium-cobalt magnet for an electric vehicle sensor, comprising a magnet cylinder 1. An arc-shaped magnetic steel plate 2 is arranged inside the magnet cylinder 1. Limit posts 3 are fitted on both the upper and lower sides of the arc-shaped magnetic steel plate 2. One end of the limit post 3 is fixedly connected to the inner wall of the magnet cylinder 1, and the other end of the limit post 3 is fixedly connected to a circular ring 4. The limit posts 3 clamp the arc-shaped magnetic steel plate 2 inside the magnet cylinder 1, and the arc-shaped magnetic steel plate 2 cannot be separated from the magnet cylinder 1 through the circular ring 4. A rectangular block 5 is fixedly connected to the inner wall of the arc-shaped magnetic steel plate 2. An arc-shaped hole 6 is formed inside the rectangular block 5. A sliding ring 7 is arranged on the inner wall of the arc-shaped hole 6. A connecting column 8 is fixedly connected to the inner wall of the sliding ring 7. One end of the connecting column 8 is fixedly connected to a first cylinder 9. When the first cylinder 9 moves upward or downward, the distance between the arc-shaped magnetic steel plate 2 and the magnet cylinder 1 changes through the cooperation of the sliding ring 7 and the arc-shaped hole 6. The centers of the magnet cylinder 1, the circle of the arc-shaped magnetic steel plate 2, and the center of the first cylinder 9 are on the same vertical line. A sensor main body 10 is fitted on the inner wall of the first cylinder 9. Springs 11 are fixedly connected to both the surface of the first cylinder 9 and the inner wall of the magnet cylinder 1. The first cylinder 9 cannot rotate inside the magnet cylinder 1 due to the pulling force of the springs 11. A fixed bracket 12 is fitted on the surface of the sensor main body 10. The inner wall of the fixed bracket 12 is fixedly connected to the surface of the first cylinder 9.

[0026] Embodiment Two:

[0027] Refer to Figures 1-6, the fixed support 12 includes a support ring 121. The upper surface of the support ring 121 is fixedly connected with an internal thread cylinder 122. The inner wall of the internal thread cylinder 122 is threadedly connected with an external thread cylinder 123. The upper surface of the support ring 121 and the surface of the first cylinder 9 are both fixedly connected with a second cylinder 124. The surface of the second cylinder 124 is in contact with the inner wall of the external thread cylinder 123. A sliding hole 125 is formed inside the second cylinder 124. T-shaped blocks 126 are arranged in a fitting manner on the inner wall of the sliding hole 125 and the surface of the sensor body 10. A trapezoidal groove 127 is formed on the upper surface of the T-shaped block 126. A third cylinder 128 is arranged in a fitting manner on the inner wall of the trapezoidal groove 127. The axis of the third cylinder 128 and the axis of the external thread cylinder 123 are on the same vertical line. The upper surface of the third cylinder 128 is fixedly connected with the bottom of the external thread cylinder 123. A rotating block 129 is fixedly connected to the surface of the external thread cylinder 123. The rotating block 129 is a hollow regular hexagonal block. The center of the rotating block 129 and the axis of the external thread cylinder 123 are on the same vertical line. Through the cooperation of the support ring 121, the internal thread cylinder 122, the external thread cylinder 123, the second cylinder 124, the sliding hole 125, the T-shaped block 126, the trapezoidal groove 127, the third cylinder 128 and the rotating block 129, the user can clamp or loosen the sensor body 10 by rotating the rotating block 129. Moreover, the rotating block 129 is located outside the magnet cylinder 1, so that the disassembly and assembly between the samarium-cobalt magnet and the sensor body 10 are relatively convenient. A trapezoidal block 13 is fixedly connected to the upper surface of the T-shaped block 126. The upper surface of the trapezoidal block 13 is an inclined surface. Through the inclined surface on the trapezoidal block 13, when the user inserts the sensor body 10 into the first cylinder 9, the T-shaped block 126 can be automatically pushed away, so that the user can smoothly insert the T-shaped block 126 into the first cylinder 9.

[0028] In the present utility model, when a user uses the samarium-cobalt permanent magnet, first rotate the rotating block 129 to make the distance between the third cylinder 128 and the support ring 121 reach the maximum, and through the trapezoidal groove 127, the T-shaped block 126 can slide in the sliding hole 125. Then, insert the sensor body 10 into the first cylinder 9, and through the inclined surface on the trapezoidal block 13, when the user inserts the sensor body 10 into the first cylinder 9, the T-shaped block 126 can be automatically pushed away. After the sensor body 10 is inserted into the first cylinder 9, rotate the rotating block 129 to make the third cylinder 128 move downward under the action of the internal thread cylinder 122 and the external thread cylinder 123, and through the pressure of the third cylinder 128 on the inclined surface of the trapezoidal groove 127, the T-shaped block 126 clamps the sensor body 10. At this time, the clamping force applied by the T-shaped block 126 to the sensor body 10 fixes the sensor body 10 in the first cylinder 9. Then, after the sensor body 10 is fixed in the first cylinder 9, if the first cylinder 9 moves up and down, through the cooperation of the sliding ring 7 and the arc-shaped hole 6, the distance between the arc-shaped magnetic steel plate 2 and the magnetic steel cylinder 1 changes. If the first cylinder 9 moves horizontally, the distance between the arc-shaped magnetic steel plate 2 and the magnetic steel cylinder 1 can directly change. Furthermore, through the cooperation of the magnetic steel cylinder 1, the arc-shaped magnetic steel plate 2, the limit post 3, the circular ring 4, the rectangular block 5, the arc-shaped hole 6, the sliding ring 7, the connecting column 8 and the first cylinder 9, the vibration of the sensor body 10 in any direction can change the distance between the magnetic steel cylinder 1 and the arc-shaped magnetic steel plate 2, and the vibration of the sensor body 10 in any direction can be suppressed by the repulsive force between the magnetic steel cylinder 1 and the arc-shaped magnetic steel plate 2.

[0029] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

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

Claims

1. A samarium-cobalt permanent magnet for an electric vehicle sensor, comprising a magnet cylinder (1), characterized in that, An arc-shaped magnetic steel plate (2) is arranged inside the magnetic steel cylinder (1). Limit posts (3) are arranged on both the upper and lower sides of the arc-shaped magnetic steel plate (2) in a fitting manner. One end of the limit post (3) is fixedly connected to the inner wall of the magnetic steel cylinder (1), and the other end of the limit post (3) is fixedly connected to a circular ring (4). A rectangular block (5) is fixedly connected to the inner wall of the arc-shaped magnetic steel plate (2). An arc-shaped hole (6) is formed inside the rectangular block (5). A sliding ring (7) is arranged on the inner wall of the arc-shaped hole (6). A connecting column (8) is fixedly connected to the inner wall of the sliding ring (7). One end of the connecting column (8) is fixedly connected to a first cylinder (9). A sensor main body (10) is arranged in a fitting manner on the inner wall of the first cylinder (9). Springs (11) are fixedly connected to both the surface of the first cylinder (9) and the inner wall of the magnetic steel cylinder (1). A fixing bracket (12) is arranged in a fitting manner on the surface of the sensor main body (10). The inner wall of the fixing bracket (12) is fixedly connected to the surface of the first cylinder (9).

2. The samarium cobalt permanent magnet for an electric vehicle sensor according to claim 1, wherein The fixing bracket (12) includes a support ring (121). An internally threaded cylinder (122) is fixedly connected to the upper surface of the support ring (121). An externally threaded cylinder (123) is threadedly connected to the inner wall of the internally threaded cylinder (122). Second cylinders (124) are fixedly connected to both the upper surface of the support ring (121) and the surface of the first cylinder (9). The surface of the second cylinder (124) is in contact with the inner wall of the externally threaded cylinder (123). A sliding hole (125) is formed inside the second cylinder (124). T-shaped blocks (126) are arranged in a fitting manner on both the inner wall of the sliding hole (125) and the surface of the sensor main body (10). A trapezoidal groove (127) is formed on the upper surface of the T-shaped block (126). A third cylinder (128) is arranged in a fitting manner on the inner wall of the trapezoidal groove (127). The upper surface of the third cylinder (128) is fixedly connected to the bottom of the externally threaded cylinder (123). A rotating block (129) is fixedly connected to the surface of the externally threaded cylinder (123).

3. The samarium cobalt permanent magnet for an electric vehicle sensor according to claim 2, wherein A trapezoidal block (13) is fixedly connected to the upper surface of the T-shaped block (126). The upper surface of the trapezoidal block (13) is an inclined surface.

4. A samarium cobalt permanent magnet for an electric vehicle sensor according to claim 1, characterized in that, The centers of the magnetic steel cylinder (1), the circle of the arc-shaped magnetic steel plate (2), and the center of the first cylinder (9) are on the same vertical line.

5. A samarium-cobalt permanent magnet for an electric vehicle sensor according to claim 2, characterized in that, The rotating block (129) is a hollow regular hexagonal block. The center of the rotating block (129) and the axis of the externally threaded cylinder (123) are on the same vertical line.

6. The samarium cobalt permanent magnet for an electric vehicle sensor according to claim 2, characterized in that, The axis of the third cylinder (128) and the axis of the externally threaded cylinder (123) are on the same vertical line.

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