Magnetic tunnel junction sensor

Abstract

The utility model discloses a magnetic tunnel junction sensor, which belongs to the field of magnetic field detection, and comprises an adjusting assembly, the top end of the adjusting assembly is fixedly connected with a pair of symmetrical fixed angle blocks, the adjusting assembly comprises a shell, the bottom end of the shell is rotatably connected with a rotating seat, and the inside of the rotating seat is rotatably connected with a rotating shaft. The middle part of the rotating shaft is fixedly connected with a driven block, and the bottom end of the driven block penetrates through the bottom end of the shell and is fixedly connected with a magnetic tunnel junction sensor main body. The bottom end of the driven block penetrates through the shell and is fixedly connected with the magnetic tunnel junction sensor main body, so that a basic structure frame of the whole magnetic tunnel junction sensor is constructed, and basic support is provided for subsequently realizing angle and direction adjustment of the sensor main body; and the whole body can be fixedly mounted at a corresponding mounting position conveniently.

Description

Technical Field

[0001] This utility model relates to the field of magnetic field detection, and in particular to a magnetic tunnel junction sensor. Background Technology

[0002] Magnetic tunnel junction sensors are a special type of tunnel junction sensor. They mainly consist of two ferromagnetic layers and an insulating layer sandwiched between them. The magnetization directions of the two ferromagnetic layers can be parallel or antiparallel. They sense changes in the external magnetic field by detecting changes in resistance. Generally, the position of a magnetic tunnel junction sensor is relatively fixed, and the detection results are relatively simple.

[0003] Existing magnetic tunnel junction sensors are typically installed using embedded or adhesive T-bolts. Before installation, the orientation of the magnetic tunnel junction sensor needs to be determined, as the sensor detects data based on its current orientation. However, if data from multiple orientations is required, the orientation of the magnetic tunnel junction sensor needs to be changed. The embedded or adhesive T-bolt installation method requires disassembling the magnetic tunnel junction sensor, re-determining its orientation, and then reinstalling it, which is quite cumbersome.

[0004] To address this, we propose a magnetic tunnel junction sensor. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a magnetic tunnel junction sensor.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A magnetic tunnel junction sensor includes an adjustment assembly. A pair of symmetrical fixed corner blocks are fixedly connected to the top of the adjustment assembly. The adjustment assembly includes a housing. A rotating seat is rotatably connected to the bottom of the housing. A rotating shaft is rotatably connected inside the rotating seat. A driven block is fixedly connected to the middle of the rotating shaft. The bottom end of the driven block passes through the bottom end of the housing and is fixedly connected to the magnetic tunnel junction sensor body.

[0008] By setting up an adjustment assembly that includes components such as a housing, a rotating base, a rotating shaft, and a driven block, and by having the bottom end of the driven block pass through the housing and be fixedly connected to the magnetic tunnel junction sensor body, the basic structural framework of the entire magnetic tunnel junction sensor is constructed, providing basic support for the subsequent adjustment of the sensor body's angle and direction. The fixed corner block is connected to the top of the adjustment assembly, making it convenient to fix the whole assembly in the corresponding installation position.

[0009] Furthermore, a shaft is provided inside the outer casing, the top end of the shaft is rotatably connected to the inner wall of the outer casing, and the bottom end of the shaft extends through the top end of the rotating seat to the inside of the rotating seat and is fixedly connected to a transmission bevel gear.

[0010] By setting a shaft inside the outer shell, with its top end rotatably connected to the inner wall of the outer shell and its bottom end extending through the rotating seat and fixedly connected to the transmission bevel gear, the foundation of the transmission component is laid for the subsequent use of the shaft rotation to transmit power and drive the movement of other related components, thereby realizing the angle change of the magnetic tunnel junction sensor body. This allows power to be transmitted from the shaft to the related structures inside the rotating seat.

[0011] Furthermore, a driven bevel gear is provided in the middle of the rotating shaft and on one side of the driven block, and the driven bevel gear meshes with the transmission bevel gear.

[0012] Furthermore, a shaft cylinder is provided at the middle of the shaft and at the top of the rotating seat. The shaft cylinder is rotatably connected to the shaft and fixedly connected to the rotating seat. A sleeve is rotatably connected to the middle of the shaft cylinder and fixedly connected to the outer shell.

[0013] Furthermore, a first gear is fixedly connected to the middle of the shaft cylinder.

[0014] Furthermore, a transmission gear is provided at the top of the shaft and above the first gear, and the transmission gear is fixedly connected to the shaft.

[0015] Furthermore, a first motor is fixedly connected inside the outer casing, and a first worm gear is fixedly connected to the transmission end of the first motor. The first worm gear meshes with a transmission gear and is rotatably connected to the outer casing.

[0016] Furthermore, a second motor is fixedly connected inside the outer casing, and a second worm gear is fixedly connected to the transmission end of the second motor. The second worm gear meshes with the first gear, and the second worm gear is rotatably connected to the outer casing.

[0017] In summary, this utility model has the following beneficial effects:

[0018] 1. The magnetic tunnel junction sensor body is rotated by the driven block to achieve multi-angle detection. The rotating seat drives the driven block and the magnetic tunnel junction sensor body to rotate simultaneously to achieve multi-directional detection, which can meet the detection requirements of different directions and angles. The detected data is more diverse, and there is no need to repeatedly disassemble and install the magnetic tunnel junction sensor body to change its orientation, making it more convenient to use.

[0019] 2. By rotating the shaft, the transmission bevel gear is driven to rotate, which in turn drives the driven bevel gear to rotate the shaft and driven block, thereby changing the angle of the magnetic tunnel junction sensor body to achieve the purpose of detection at any angle;

[0020] 3. By rotating the shaft cylinder to drive the rotating seat to rotate, the rotating shaft, driven bevel gear, driven block, and magnetic tunnel junction sensor body can be rotated, which can change the orientation of the magnetic tunnel junction sensor body to achieve the purpose of detection in any direction. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure in this embodiment;

[0022] Figure 2 This is a schematic diagram of the overall disassembled structure in this embodiment;

[0023] Figure 3 This is a schematic diagram of the structure of the adjusted component section in this embodiment;

[0024] Figure 4 This is a schematic diagram of the internal structure of the adjustment component in this embodiment;

[0025] Figure 5 This is a schematic diagram of the internal splitting structure of the adjusted component in this embodiment.

[0026] In the diagram, 1 is the adjusting component; 2 is the fixed corner block; 101 is the outer shell; 102 is the sleeve; 103 is the shaft cylinder; 104 is the first gear; 105 is the rotating seat; 106 is the rotating shaft; 107 is the driven bevel gear; 108 is the driven block; 109 is the magnetic tunnel junction sensor body; 110 is the shaft; 111 is the transmission gear; 112 is the transmission bevel gear; 113 is the first motor; 114 is the second motor; 115 is the first worm gear; and 116 is the second worm gear. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.

[0029] Reference Figures 1-5As shown, a magnetic tunnel junction sensor according to a preferred embodiment of the present invention includes an adjustment component 1. A pair of symmetrical fixed corner blocks 2 are fixedly connected to the top of the adjustment component 1. The adjustment component 1 includes a housing 101. A rotating seat 105 is rotatably connected to the bottom of the housing 101. A rotating shaft 106 is rotatably connected inside the rotating seat 105. A driven block 108 is fixedly connected to the middle of the rotating shaft 106. The bottom end of the driven block 108 passes through the bottom end of the housing 101 and is fixedly connected to the magnetic tunnel junction sensor body 109.

[0030] By setting up an adjustment assembly 1 that includes components such as a housing 101, a rotating base 105, a rotating shaft 106, and a driven block 108, and by having the bottom end of the driven block 108 pass through the housing 101 and be fixedly connected to the magnetic tunnel junction sensor body 109, the basic structural framework of the entire magnetic tunnel junction sensor is constructed, providing basic support for the subsequent adjustment of the sensor body's angle and direction. The fixed corner block 2 is connected to the top of the adjustment assembly 1, making it convenient for the whole to be fixedly installed in the corresponding installation position.

[0031] The housing 101 has a shaft 110 inside. The top end of the shaft 110 is rotatably connected to the inner wall of the housing 101, and the bottom end of the shaft 110 extends through the top end of the rotating seat 105 to the inside of the rotating seat 105 and is fixedly connected to a transmission bevel gear 112.

[0032] By setting a shaft 110 inside the housing 101, with its top end rotatably connected to the inner wall of the housing 101 and its bottom end extending through the rotating seat 105 and fixedly connected to the transmission bevel gear 112, a transmission component is laid for the subsequent use of the rotation of the shaft 110 to transmit power and drive the movement of other related components, thereby realizing the angle change of the magnetic tunnel junction sensor body 109, allowing power to be transmitted from the shaft 110 to the related structures inside the rotating seat 105.

[0033] A driven bevel gear 107 is provided in the middle of the rotating shaft 106 and on one side of the driven block 108. The driven bevel gear 107 meshes with the transmission bevel gear 112.

[0034] By setting a driven bevel gear 107 in the middle of the rotating shaft 106 and making it mesh with the transmission bevel gear 112 on the shaft 110, when the shaft 110 drives the transmission bevel gear 112 to rotate, the driven bevel gear 107 can be driven to rotate by means of the principle of gear meshing transmission. This will drive the rotating shaft 106 and the driven block 108 fixedly connected to the rotating shaft 106 to rotate accordingly, and finally realize the change of the angle of the magnetic tunnel junction sensor body 109, so as to achieve the purpose of multi-angle detection.

[0035] A shaft sleeve 103 is provided at the middle of the shaft 110 and at the top of the rotating seat 105. The shaft sleeve 103 is rotatably connected to the shaft 110 and fixedly connected to the rotating seat 105. A sleeve 102 is rotatably connected to the middle of the shaft sleeve 103 and fixedly connected to the outer shell 101.

[0036] By setting a cylinder 103 in the middle of the shaft 110, which is rotatably connected to the shaft 110 and fixedly connected to the rotating seat 105, and rotatably connecting the middle of the cylinder 103 to the sleeve 102 fixed on the outer shell 101, the connection stability and relative rotation smoothness between the shaft 110 and the rotating seat 105 are ensured. On the other hand, it also lays the structural foundation for the subsequent rotation of the rotating seat 105 to be driven by the rotation of the cylinder 103, making the linkage between the components more reasonable and orderly.

[0037] A first gear 104 is fixedly connected to the middle part of the shaft sleeve 103;

[0038] By fixing the first gear 104 in the middle of the shaft cylinder 103, a necessary transmission structure is provided for the subsequent introduction of a power source to drive the shaft cylinder 103 to rotate. Subsequently, power can be transmitted through the components that cooperate with the first gear 104 to cause the shaft cylinder 103 to rotate, thereby driving the rotating seat 105 and other components connected to it to rotate, changing the orientation of the magnetic tunnel junction sensor body 109.

[0039] A transmission gear 111 is provided at the top of the shaft 110 and above the first gear 104, and the transmission gear 111 is fixedly connected to the shaft 110.

[0040] By setting a transmission gear 111 fixedly connected to the shaft 110 at the top of the shaft 110 and above the first gear 104, an effective connection node is provided for transmitting power from an external power source to the shaft 110. This facilitates the subsequent use of other transmission components meshing with it to transmit power to the shaft 110, drive the shaft 110 to rotate, thereby driving the entire transmission system to operate and realize the adjustment of the angle, direction, etc. of the magnetic tunnel junction sensor body 109.

[0041] A first motor 113 is fixedly connected inside the outer casing 101. A first worm gear 115 is fixedly connected to the transmission end of the first motor 113. The first worm gear 115 meshes with the transmission gear 111 and is rotatably connected to the outer casing 101.

[0042] By fixing a first motor 113 inside the housing 101 and fixing its transmission end to a first worm gear 115, and making the first worm gear 115 mesh with the transmission gear 111 and rotate with the housing 101, when the first motor 113 is started, the motor drives the first worm gear 115 to rotate. Through the meshing transmission between the worm gear and the transmission gear 111, the shaft 110 can be driven to rotate, thereby driving a series of components such as the transmission bevel gear 112 and the driven bevel gear 107 to move, thereby realizing the change of the angle of the magnetic tunnel junction sensor body 109 and realizing the multi-angle detection function.

[0043] A second motor 114 is fixedly connected inside the outer casing 101. A second worm gear 116 is fixedly connected to the transmission end of the second motor 114. The second worm gear 116 meshes with the first gear 104 and is rotatably connected to the outer casing 101.

[0044] By fixing a second motor 114 inside the housing 101, and fixing a second worm gear 116 to its transmission end, the second worm gear 116 meshes with the first gear 104 and is rotatably connected to the housing 101. When the second motor 114 is started, the second worm gear 116 rotates under the drive of the motor. Through meshing transmission with the first gear 104, it drives the shaft cylinder 103 to rotate, thereby driving the rotating seat 105 to rotate. Ultimately, this causes the magnetic tunnel junction sensor body 109 to change orientation, achieving the purpose of multi-directional detection and improving the diversity of detection data.

[0045] Specific implementation process: First, the magnetic tunnel junction sensor is installed at the predetermined detection position using the fixing corner block 2, ensuring a secure installation and proper positioning. When the angle of the magnetic tunnel junction sensor body 109 needs to be adjusted, the first motor 113 is started. The first motor 113 drives the first worm gear 115 at its transmission end to rotate. Since the first worm gear 115 meshes with the transmission gear 111 at the top of the shaft 110, the rotation of the first worm gear 115 drives the transmission gear 111 and the shaft 110 fixedly connected to it to start rotating. The transmission bevel gear 112 at the bottom of the shaft 110 rotates synchronously with the shaft 110. Because the transmission bevel gear 112 meshes with the driven bevel gear 107 in the middle of the rotating shaft 106, the rotation of the transmission bevel gear 112 will drive the driven bevel gear 107 to rotate, thereby causing the rotating shaft 106 and the driven block 108 fixed on the rotating shaft 106 to flip, ultimately achieving the angle adjustment of the magnetic tunnel junction sensor body 109. The orientation of the magnetic tunnel junction sensor body 109 can be changed to achieve detection at any angle. When it is necessary to change the orientation of the magnetic tunnel junction sensor body 109, the second motor 114 is started. The second motor 114 drives the second worm gear 116 to rotate. Since the second worm gear 116 meshes with the first gear 104 in the middle of the shaft cylinder 103, the rotation of the second worm gear 116 will drive the first gear 104 and the shaft cylinder 103 fixedly connected to it to rotate. The shaft cylinder 103 is fixedly connected to the rotating seat 105, so the rotation of the shaft cylinder 103 will drive the rotating seat 105 to rotate, thereby causing the rotating shaft 106, driven bevel gear 107, driven block 108 and magnetic tunnel junction sensor body 109 inside the rotating seat 105 to rotate as a whole, realizing the change of orientation of the magnetic tunnel junction sensor body 109 and achieving the effect of multi-directional detection. In the whole process, magnetic field detection data of different directions and angles can be flexibly acquired, improving the practicality of the sensor and the comprehensiveness of the detection range.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A magnetic tunnel junction sensor, characterized in that: It includes an adjustment component (1), the top of which is fixedly connected to a pair of symmetrical fixed corner blocks (2); The adjustment assembly (1) includes a housing (101), a rotating seat (105) is rotatably connected to the bottom end of the housing (101), a rotating shaft (106) is rotatably connected inside the rotating seat (105), a driven block (108) is fixedly connected to the middle of the rotating shaft (106), and the bottom end of the driven block (108) passes through the bottom end of the housing (101) and is fixedly connected to the magnetic tunnel junction sensor body (109).

2. A magnetic tunnel junction sensor according to claim 1, characterized in that: The housing (101) has a shaft (110) inside. The top end of the shaft (110) is rotatably connected to the inner wall of the housing (101). The bottom end of the shaft (110) extends through the top end of the rotating seat (105) to the inside of the rotating seat (105) and is fixedly connected to a transmission bevel gear (112).

3. A magnetic tunnel junction sensor according to claim 1, characterized in that: A driven bevel gear (107) is provided in the middle of the shaft (106) and on one side of the driven block (108), and the driven bevel gear (107) meshes with the transmission bevel gear (112).

4. A magnetic tunnel junction sensor according to claim 2, characterized in that: A shaft cylinder (103) is provided at the middle of the shaft (110) and at the top of the rotating seat (105). The shaft cylinder (103) is rotatably connected to the shaft (110) and fixedly connected to the rotating seat (105). A sleeve (102) is rotatably connected to the middle of the shaft cylinder (103) and fixedly connected to the outer shell (101).

5. A magnetic tunnel junction sensor according to claim 4, characterized in that: The first gear (104) is fixedly connected to the middle of the shaft cylinder (103).

6. A magnetic tunnel junction sensor according to claim 4, characterized in that: A transmission gear (111) is provided at the top of the shaft (110) and above the first gear (104), and the transmission gear (111) is fixedly connected to the shaft (110).

7. A magnetic tunnel junction sensor according to claim 4, characterized in that: A first motor (113) is fixedly connected inside the outer casing (101). A first worm gear (115) is fixedly connected to the transmission end of the first motor (113). The first worm gear (115) meshes with a transmission gear (111) and is rotatably connected to the outer casing (101).

8. A magnetic tunnel junction sensor according to claim 7, characterized in that: A second motor (114) is fixedly connected inside the outer casing (101). A second worm (116) is fixedly connected to the transmission end of the second motor (114). The second worm (116) meshes with the first gear (104) and is rotatably connected to the outer casing (101).

Images