Sensor measurement assembly and external magnetostrictive displacement sensor

Abstract

The utility model discloses a sensor measuring assembly and an external magnetostrictive displacement sensor, and relates to the technical field of displacement distance measuring instruments, the sensor measuring assembly comprises a circuit board, a support and a sensitive element, the circuit board is provided with a mounting hole; the support is provided with an installation through groove, a hook is formed on the side wall of the installation through groove, the hook is provided with a clamping groove, the hook penetrates through the installation hole, and the circuit board is clamped in the clamping groove; the sensitive element is accommodated in the mounting through groove; according to the technical scheme provided by the utility model, the circuit board and the sensitive element can be independently mounted and debugged, the debugging and testing of the sensor are more convenient, the production efficiency is remarkably improved, and the production complexity and cost are greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of displacement distance measurement instrument technology, and in particular to a sensor measurement component and an external magnetostrictive displacement sensor. Background Technology

[0002] External magnetostrictive displacement sensors are high-precision, non-contact displacement measurement devices widely used in industrial automation, machinery manufacturing, automotive, aerospace, and other fields. They utilize the magnetostrictive effect to measure the displacement of objects, offering advantages such as high precision, high reliability, and strong anti-interference capabilities. In related technologies, traditional magnetostrictive displacement sensors typically integrate the sensing element and circuit board into a single unit. This requires simultaneous assembly of the sensing element and circuit board during production, increasing complexity and cost. Furthermore, the integrated design makes debugging and testing during production more difficult, increasing the likelihood of errors and leading to low production efficiency. Utility Model Content

[0003] The main purpose of this invention is to propose a sensor measurement component and an external magnetostrictive displacement sensor, aiming to reduce the manufacturing complexity and cost of the sensor measurement component.

[0004] To achieve the above objectives, the sensor measurement assembly proposed in this utility model includes:

[0005] Circuit board, wherein the circuit board has mounting holes;

[0006] A bracket, wherein the bracket has a mounting slot, the sidewall of the mounting slot has a hook, the hook has a locking groove, the hook passes through the mounting hole, and the circuit board is locked into the locking groove; and

[0007] A sensitive element, wherein the sensitive element is housed within the mounting slot.

[0008] In one embodiment, hooks are formed on both opposite side walls of the mounting slot, and slots are provided on the opposite side of the two hooks.

[0009] In one embodiment, the bracket has two mounting protrusions spaced apart on the side facing the circuit board, the mounting protrusions being configured corresponding to the mounting holes, and the hook being located between the two mounting protrusions and spaced apart from either of the mounting protrusions.

[0010] In one embodiment, the bracket has a support groove communicating with the mounting through groove, and the sensitive element includes a core and a shielding tube connected to each other. The core is accommodated in the mounting through groove, and the shielding tube is engaged in the support groove.

[0011] In one embodiment, the side wall of the mounting slot is provided with a first screw hole, the core is provided with a second screw hole corresponding to the first screw hole, and the sensor measuring assembly includes a locking member that passes through the first screw hole and the second screw hole to connect the core to the bracket.

[0012] This utility model also proposes an external magnetostrictive displacement sensor, comprising:

[0013] The housing includes an outer shell and two end caps. The outer shell has a through cavity, and the two end caps are detachably connected to both ends of the outer shell to form an electronic compartment.

[0014] The sensor measurement assembly described in any of the above embodiments is housed within the electronic compartment; and

[0015] The slider has a magnetic core inside and a connector for connecting to the object to be measured. The slider is slidably connected to the outer shell.

[0016] In one embodiment, the two opposite side walls of the cavity are provided with built-in grooves, which extend along the axial direction of the outer shell, and the circuit board is slidably snapped into the built-in grooves.

[0017] In one embodiment, one end of the housing is provided with an aviation plug mounting base, and the circuit board is electrically connected to the sensitive element and the aviation plug mounting base respectively.

[0018] In one embodiment, the outer wall of the housing is provided with a guide shaft, and the slider is formed with a guide groove that slides with the guide shaft.

[0019] In one embodiment, the external magnetostrictive displacement sensor includes a status indicator light, which is electrically connected to the circuit board. A portion of the status indicator light's structure passes through and is exposed on the end cap; and / or

[0020] The external magnetostrictive displacement sensor includes a sealing gasket, and each end cap has a mounting groove on the side facing the housing, with a sealing gasket disposed in each mounting groove; the external magnetostrictive displacement sensor includes a plurality of fasteners, each fastener passing through the end of an end cap and the housing to connect the end cap to the housing.

[0021] In this utility model's technical solution, the circuit board is the core component of the sensor, used to process and transmit magnetostrictive signals. The circuit board integrates signal processing circuitry, power management circuitry, and a communication interface. To connect the sensitive element to the circuit board, mounting holes are provided on the circuit board to ensure that the hooks on the bracket can pass through the mounting holes and engage with the circuit board. The sensitive element is the key component of the sensor, used to detect the displacement signal generated by the magnetostrictive effect. The sensitive element is made of high-precision magnetostrictive material, possessing high sensitivity and high reliability. The sensitive element is housed within the mounting slot of the bracket, and the bracket ensures a stable connection between the sensitive element and the circuit board, guaranteeing signal transmission. The system ensures stable and reliable operation. During assembly, the hooks on the bracket are passed through the mounting holes to engage the circuit board in the hook slots, and the sensitive element is placed in the mounting slot of the bracket. During disassembly, the sensitive element is removed from the mounting slot, and the hooks are pressed in the direction of separation from the circuit board and the slots to disengage the slots from the circuit board. The hooks are typically made of a material with a certain degree of elasticity so that they can be moved in the direction of separation from the circuit board and the slots during disassembly. This design allows the circuit board and the sensitive element to be installed and debugged independently, making sensor debugging and testing more convenient, significantly improving production efficiency, and greatly reducing production complexity and cost. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 An exploded structural diagram of an embodiment of the sensor measurement component provided by this utility model;

[0024] Figure 2 A schematic diagram of a support structure according to an embodiment of the present invention is provided;

[0025] Figure 3 A schematic diagram of the structure of an embodiment of the sensitive element of this utility model is provided;

[0026] Figure 4 An exploded structural diagram of an embodiment of the external magnetostrictive displacement sensor provided by this utility model;

[0027] Figure 5 for Figure 4 A magnified view of a portion of point A in the middle.

[0028] Explanation of icon numbers:

[0029] 100. Sensor measurement assembly; 1. Circuit board; 11. Mounting hole; 2. Bracket; 21. Mounting through slot; 22. Hook; 221. Slot; 23. Mounting protrusion; 24. Support slot; 25. First screw hole; 3. Sensing element; 31. Core; 311. Second screw hole; 312. Cable outlet; 32. Shielding tube;

[0030] 200, Housing; 210, Outer shell; 220, End cap; 230, Through cavity; 240, Internal groove; 250, Guide shaft; 260, Mounting slot; 300, Slider; 310, Connector; 320, Guide groove; 400, Aircraft plug mounting base; 500, Status indicator light; 600, Sealing gasket; 700, Fastener; 800, Support frame.

[0031] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0033] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0034] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0035] This utility model proposes a sensor measurement component 100.

[0036] Please see Figure 1 and Figure 2 In one embodiment of this utility model, the sensor measurement assembly 100 includes a circuit board 1, a bracket 2, and a sensitive element 3. The circuit board 1 has a mounting hole 11; the bracket 2 has a mounting groove 21, and a hook 22 is formed on the side wall of the mounting groove 21. The hook 22 has a slot 221, and the hook 22 passes through the mounting hole 11. The circuit board 1 is snapped into the slot 221; the sensitive element 3 is accommodated in the mounting groove 21.

[0037] In this utility model, circuit board 1 is the core component of the sensor, used to process and transmit magnetostrictive signals. Circuit board 1 integrates signal processing circuits, power management circuits, and communication interfaces. To connect the sensitive element 3 to circuit board 1, mounting holes 11 are provided on circuit board 1 to ensure that the hooks 22 on the bracket 2 can pass through the mounting holes 11 and engage with circuit board 1. Sensitive element 3 is the key component of the sensor, used to detect the displacement signal generated by the magnetostrictive effect. Sensitive element 3 is made of high-precision magnetostrictive material, possessing high sensitivity and high reliability. Sensitive element 3 is housed within the mounting slot 21 of bracket 2, and the bracket 2 enables a stable connection between sensitive element 3 and circuit board 1, ensuring the stability and reliability of signal transmission. During assembly, the hook 22 on the bracket 2 is passed through the mounting hole 11 so that the circuit board 1 is snapped into the slot 221 of the hook 22, and then the sensitive element 3 is placed in the mounting through slot 21 of the bracket 2. During disassembly, the sensitive element 3 is taken out from the mounting through slot 21, and the hook 22 is pressed in the direction of separation between the circuit board 1 and the slot 221, so that the slot 221 is separated from the circuit board 1. Usually, the hook 22 can be made of a material with a certain degree of elasticity so that when disassembling, pressing the hook 22 in the direction of separation between the circuit board 1 and the slot 221 can move the circuit board 1 in the direction of separation from the slot 221. With this design, the circuit board 1 and the sensitive element 3 can be installed and debugged independently, the debugging and testing of the sensor is more convenient, the production efficiency is significantly improved, and the production complexity and cost are greatly reduced.

[0038] To improve the connection stability between bracket 2 and circuit board 1, please refer to... Figure 2In one embodiment of this utility model, hooks 22 are formed on both opposite side walls of the mounting slot 21, and slots 221 are provided on the opposite side of each hook 22. The circuit board 1 achieves double engagement through the hooks 22 and slots 221 on both sides, thereby significantly improving the stability and reliability of the connection. Through the hooks 22 and slots 221 on both sides, the circuit board 1 is more firmly fixed on the bracket 2, reducing loosening caused by vibration or external force. The symmetrical design of the hooks 22 and slots 221 on both sides makes the force more even, further improving the reliability of the connection.

[0039] Further, please refer to Figure 1 and Figure 2 In one embodiment of the present invention, the bracket 2 has two mounting protrusions 23 spaced apart on the side facing the circuit board 1. The mounting protrusions 23 are provided corresponding to the mounting holes 11. The hook 22 is located between the two mounting protrusions 23 and is spaced apart from either of the mounting protrusions 23. The mounting protrusions 23 at both ends can engage with the mounting holes 11 of the circuit board 1, and a limiting step is formed at the connection between the mounting protrusions 23 and the bracket 2, so that when the mounting protrusions 23 and hooks 22 on the bracket 2 pass through the mounting holes 11, the main body of the bracket 2 is exposed in the mounting holes 11. In the specific installation process, the hooks 22 on the bracket 2 are passed through the mounting holes 11, so that the circuit board 1 is engaged in the slots 221 of the hooks 22. Then, the sensitive element 3 is placed in the mounting through slots 21 of the bracket 2. At this time, the sensitive element 3 can prevent the hooks 22 from moving in the direction of disengagement from the circuit board 1 and the slots 221. This setting can restrict the movement of the hooks 22 while installing the sensitive element 3. The hooks 22 and the two mounting protrusions 23 are spaced apart, so that there is a gap between the hooks 22 and the two mounting protrusions 23. During the disassembly process, the user can use this gap to press the hooks 22 to make them... The circuit board 1 moves in the direction of disengaging from the slot 221, thereby achieving rapid separation of the circuit board 1 from the bracket 2. By setting a gap between the hook 22 and the mounting protrusion 23, the user can easily press the hook 22 during disassembly to disengage it from the slot 221, thereby achieving rapid separation of the circuit board 1 from the bracket 2, improving the convenience of disassembly, reducing disassembly time, and improving work efficiency. During installation, the hook 22 passes through the mounting hole 11 of the circuit board 1 and is engaged in the slot 221. At the same time, the two mounting protrusions 23 provide support and positioning for the circuit board 1. This structure makes the circuit board 1 more securely fixed on the bracket 2, effectively preventing loosening caused by external force or vibration, and improving the reliability of the sensor measurement assembly 100. During use, the user can more conveniently install and disassemble the sensor measurement assembly 100, reducing the time and effort required for maintenance and replacement.

[0040] Please see Figure 1 and Figure 2 In one embodiment of this utility model, the bracket 2 has a support groove 24 communicating with the mounting through groove 21. The sensitive element 3 includes a core 31 and a shielding tube 32 connected together. The core 31 is housed within the mounting through groove 21, and the shielding tube 32 is secured within the support groove 24. The support groove 24 communicating with the mounting through groove 21 on the bracket 2, the core 31 housed within the mounting through groove 21, and the shielding tube 32 secured within the support groove 24, ensures that the shielding tube 32 is securely secured within the bracket 2, enhancing the overall stability of the sensitive element 3. The design of the shielding tube 32 effectively reduces external electromagnetic interference, improving the measurement accuracy and reliability of the sensor. The separate design of the core 31 and the shielding tube 32 makes assembly more convenient and facilitates maintenance and replacement. The design of the support groove 24 communicating with the mounting through groove 21 makes reasonable use of the internal space of the bracket 2, making the entire sensor measurement assembly 100 more compact and suitable for various installation environments.

[0041] For more details, please refer to Figure 2 Two clamping blocks are spaced apart on the side of the bracket 2 facing away from the circuit board 1. The two clamping blocks enclose the support groove 24. The support groove 24 includes a clamping section and a receiving section. The cross-sectional area of ​​the clamping section remains constant from the end near the circuit board 1 to the end away from the circuit board 1, while the cross-sectional area of ​​the receiving section gradually increases from the end near the circuit board 1 to the end away from the circuit board 1. The clamping section is the opening section of the support groove 24. The constant cross-sectional area of ​​this section can prevent the shielding tube 32 from detaching from the support groove 24 when it is in the receiving section. The gradually changing cross-sectional area of ​​the receiving section can make the support groove 24 accommodate shielding tubes 32 of different sizes, thus increasing the compatibility with sensitive components 3. In addition, a groove is provided on the bottom wall of the support groove 24. The clamping blocks can be made of a material with a certain degree of elasticity to further increase the size compatibility of the support groove 24 with the shielding tube 32.

[0042] Please see Figure 3 In one embodiment, the core 31 has a cable outlet 312, and the core 31 is electrically connected to the circuit board 1 through the cable outlet 312. The circuit board 1 processes the position signal collected by the sensitive element 3, converts it into an analog or digital signal, and outputs it.

[0043] To improve the connection reliability between bracket 2 and sensitive element 3, please refer to [link / reference]. Figure 2 and Figure 3In one embodiment of this utility model, the side wall of the mounting slot 21 is provided with a first screw hole 25, and the core 31 is provided with a second screw hole 311 corresponding to the first screw hole 25. The sensor measuring assembly 100 includes a locking member that passes through the first screw hole 25 and the second screw hole 311 to connect the core 31 to the bracket 2. The first screw hole 25 is machined on the side wall of the mounting slot 21, and the second screw hole 311 corresponding to the first screw hole 25 is machined on the core 31. The locking member (e.g., a screw or bolt) is passed through the first screw hole 25 and the second screw hole 311 and tightened to firmly connect the core 31 to the bracket 2. During installation, the hook 22 on the bracket 2 is passed through the mounting hole 11 so that the circuit board 1 is engaged in the slot 221 of the hook 22. Then, the core 31 is placed in the mounting slot 21, ensuring its accurate position, and the shielding tube 32 is engaged in the support groove. Within 24 seconds, the core 31 is fixed to the bracket 2 by the locking device, completing the installation of the sensitive element 3. Through the cooperation of the screw hole and the locking device, the connection between the core 31 and the bracket 2 is more secure, and it can withstand greater external forces and vibrations, significantly improving the mechanical stability of the sensor measurement assembly 100. This connection method reduces measurement errors caused by loose connections, and improves the measurement accuracy and reliability of the sensor measurement assembly 100. The screw connection facilitates disassembly and reinstallation, making the maintenance and replacement of the core 31 more convenient and reducing maintenance costs.

[0044] This utility model also proposes an external magnetostrictive displacement sensor, which includes a housing 200, a slider 300, and a sensor measurement component 100. The specific structure of the sensor measurement component 100 is as described in the above embodiments. Since this external magnetostrictive displacement sensor adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. The housing 200 includes an outer shell 210 and two end caps 220. The outer shell 210 has a through cavity 230. The two end caps 220 are detachably connected to both ends of the outer shell 210 to form an electronic compartment. The sensor measurement component 100 is housed within the electronic compartment. The slider 300 has a magnetic core 31 inside and a connector 310 for connecting to the object to be measured. The slider 300 is slidably connected to the outer shell 210.

[0045] In this utility model, the sensor measurement component 100 includes a circuit board 1, a bracket 2, a sensitive element 3, etc., for detecting displacement signals generated by the magnetostrictive effect. A magnetic core 31 is provided inside the slider 300 to generate a magnetic field signal. A connector 310 is provided on the slider 300 for connecting to the object to be measured. The slider 300 is slidably connected to the outer shell 210 and can slide within the outer shell 210 along the extension direction of the cavity 230. High-precision displacement measurement is achieved through the magnetostrictive effect, suitable for various high-precision measurement scenarios. The sensor measurement component 100 can be installed and debugged independently, facilitating maintenance and replacement. The detachable design of the end cap 220 facilitates the installation and maintenance of the sensor measurement component 100. The sliding design of the slider 300 allows the sensor to adapt to displacement measurements of different lengths, improving the sensor's applicability. The entire sensor design is compact, suitable for various installation environments, and has high practicality and economy.

[0046] For easy mounting of the sensor measurement assembly 100 onto the housing 210, please refer to [link / reference]. Figure 5 In one embodiment of this utility model, the two opposite side walls of the through cavity 230 are provided with built-in grooves 240, which extend along the axial direction of the outer shell 210. The circuit board 1 is slidably snapped into the built-in grooves 240. The built-in grooves 240 extend along the axial direction of the outer shell 210, allowing the circuit board 1 to slide axially within the outer shell 210. This design allows the circuit board 1 to slide axially within the outer shell 210, while simultaneously achieving a stable connection between the sensor measurement component 100 and the outer shell 210 through the circuit board 1 snapping into the built-in grooves 240. The sliding snap-fit ​​design makes the installation and disassembly of the circuit board 1 more convenient, reducing installation time. The built-in grooves 240 provide stable support, ensuring the accurate position of the circuit board 1 within the outer shell 210 and reducing loosening caused by vibration or external force. The sliding design allows the circuit board 1 to adjust its position within a certain range to adapt to different lengths of the outer shell 210 or installation requirements.

[0047] Please see Figure 4 In another embodiment, the external magnetostrictive displacement sensor includes a support frame 800, which has a support groove 24 and is slidably engaged within the built-in groove 240. The support frame 800 supports the end of the shielding tube 32 furthest from the core 31, reducing loosening of the shielding tube 32 due to external forces or vibrations and improving the structural stability of the sensor. Sliding the support frame 800 into the built-in groove 240 of the outer casing 210 ensures stable installation and facilitates disassembly and installation of the support frame 800, improving the practicality of the device.

[0048] Please see Figure 5In one embodiment of this utility model, a mounting bracket 400 is provided at one end of the housing 200, and the circuit board 1 is electrically connected to the sensitive element 3 and the mounting bracket 400 respectively. The mounting bracket 400 at one end of the housing 200 is used to realize the electrical connection between the sensor and external devices. The circuit board 1 is electrically connected to the sensitive element 3 and the mounting bracket 400 respectively. This design allows the sensor measurement assembly 100 to transmit the detected signal to the external device through the mounting bracket 400. The mounting bracket 400 provides a standardized electrical interface, facilitating connection with various external devices. Through the mounting bracket 400, signal transmission is more stable, reducing measurement errors caused by poor contact. The design of the mounting bracket 400 makes the electrical connection of the sensor more convenient, facilitating maintenance and replacement.

[0049] For more details, please refer to Figure 5 In one embodiment of the present invention, the outer wall of the outer shell 210 is provided with a guide shaft 250, and the slider 300 is formed with a guide groove 320 that slides with the guide shaft 250. The outer wall of the housing 210 is provided with a guide shaft 250, which extends along the axial direction of the housing 210. The guide shaft 250 is used to guide the sliding direction of the slider 300, ensuring that the slider 300 moves in a straight line. A guide groove 320 is formed on the slider 300 to slide and engage with the guide shaft 250. The shape and size of the guide groove 320 are adapted to the guide shaft 250 to ensure a stable sliding engagement between the slider 300 and the guide shaft 250. The design of the guide shaft 250 and the guide groove 320 ensures that the slider 300 slides more stably within the housing 210, reducing offset and vibration during the sliding process. The stable sliding engagement improves the measurement accuracy of the sensor, ensuring that the positional change of the magnetic core 31 during the sliding process can be accurately detected. The design of the guide shaft 250 and the guide groove 320 makes reasonable use of the space of the housing 210 and the slider 300, making the entire sensor structure more compact.

[0050] Please see Figure 5In one embodiment of this utility model, the external magnetostrictive displacement sensor includes a status indicator light 500. The status indicator light 500 is electrically connected to the circuit board 1. A portion of the structure of the status indicator light 500 passes through and is exposed on the end cover 220. The status indicator light 500 is electrically connected to the circuit board 1 and is used to display the working status of the sensor (such as normal operation, fault, low battery, etc.). The portion of the structure of the status indicator light 500 passes through and is exposed outside the end cover 220, making it easy for users to observe intuitively. The status indicator light 500 can intuitively display the working status of the sensor, making it easy for users to quickly understand the operating status of the equipment. Through the color or flashing pattern of the status indicator light 500, users can quickly determine whether the sensor is working normally, which facilitates fault diagnosis and maintenance. The design of the status indicator light 500 improves the user's sense of control and trust in the equipment, enhancing the overall user experience.

[0051] Please see Figure 4 and Figure 5 In one embodiment of this utility model, the external magnetostrictive displacement sensor includes a sealing gasket 600. Each end cap 220 has a mounting groove 260 on the side facing the outer shell 210, and a sealing gasket 600 is disposed in each mounting groove 260. The external magnetostrictive displacement sensor includes a plurality of fasteners 700. Each fastener 700 passes through the end of an end cap 220 and the outer shell 210 to connect the end cap 220 and the outer shell 210. Each end cap 220 has a mounting groove 260 on the side facing the housing 210. Each mounting groove 260 contains a sealing gasket 600 to fill the gap between the end cap 220 and the housing 210, preventing dust and moisture from entering the sensor. The external magnetostrictive displacement sensor includes multiple fasteners 700, each fastener 700 passing through the end of one end cap 220 and the end cap 210, firmly connecting the end cap 220 and the end cap 210. The design of the sealing gasket 600 significantly improves the sensor's waterproof and dustproof performance, extending the sensor's service life. The firm connection between the end cap 220 and the end cap 210 via the fasteners 700 enhances the overall structural stability of the sensor. The combined use of the sealing gasket 600 and the fasteners 700 improves the sensor's reliability in harsh environments.

[0052] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A sensor measurement assembly, characterized by, include: Circuit board, wherein the circuit board has mounting holes; The bracket has a mounting slot, the side wall of the mounting slot has a hook, the hook has a slot, the hook passes through the mounting hole, and the circuit board is snapped into the slot; as well as A sensitive element, wherein the sensitive element is housed within the mounting slot.

2. The sensor measurement assembly of claim 1, wherein, The hooks are formed on both sides of the mounting slot, and the slots are provided on the opposite sides of the two hooks.

3. The sensor measurement assembly of claim 1, wherein, The bracket has two mounting protrusions spaced apart on the side facing the circuit board. The mounting protrusions are arranged corresponding to the mounting holes. The hook is located between the two mounting protrusions and is spaced apart from either of the mounting protrusions.

4. The sensor measurement assembly of any one of claims 1 to 3, wherein, The bracket has a support groove that communicates with the mounting through groove. The sensitive element includes a core and a shielding tube connected to each other. The core is housed in the mounting through groove, and the shielding tube is secured in the support groove.

5. The sensor measurement assembly of claim 4, wherein, The mounting slot has a first screw hole on its side wall, and the core has a second screw hole corresponding to the first screw hole. The sensor measuring assembly includes a locking member that passes through the first screw hole and the second screw hole to connect the core to the bracket.

6. An externally mounted magnetostrictive displacement sensor, characterized by, include: The housing includes an outer shell and two end caps. The outer shell has a through cavity, and the two end caps are detachably connected to both ends of the outer shell to form an electronic compartment. The sensor measurement assembly as described in any one of claims 1 to 5, wherein the sensor measurement assembly is housed within the electronic compartment; as well as The slider has a magnetic core inside and a connector for connecting to the object to be measured. The slider is slidably connected to the outer shell.

7. The extrinsic magnetostrictive displacement sensor of claim 6 wherein, The two opposite side walls of the cavity are provided with built-in grooves, which extend along the axial direction of the outer shell. The circuit board can be slidably snapped into the built-in grooves.

8. The extrinsic magnetostrictive displacement sensor of claim 6 wherein, One end of the housing is provided with an aviation plug mounting base, and the circuit board is electrically connected to the sensitive element and the aviation plug mounting base respectively.

9. The extrinsic magnetostrictive displacement sensor of claim 6 wherein, The outer wall of the housing is provided with a guide shaft, and the slider is formed with a guide groove that slides with the guide shaft.

10. The extrinsic magnetostrictive displacement sensor of claim 6 wherein, The external magnetostrictive displacement sensor includes a status indicator light, which is electrically connected to the circuit board. A portion of the status indicator light's structure passes through and is exposed on the end cover; and / or The external magnetostrictive displacement sensor includes a sealing gasket, and each end cap has a mounting groove on the side facing the housing, with a sealing gasket disposed in each mounting groove; the external magnetostrictive displacement sensor includes a plurality of fasteners, each fastener passing through the end of an end cap and the housing to connect the end cap to the housing.

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