A composite sensor

Abstract

The utility model provides a kind of composite sensor, comprising: shell, the lateral surface of the shell is provided with cable mounting portion;Sensor sensitive component, fixedly arranged in the shell;Cable assembly, pass through the cable mounting portion, the cable assembly is connected with the sensor sensitive component;The mounting hole is provided in the shell, the mounting hole is configured as: for with locking piece cooperation use, to fix the shell on the surface to be detected.Compared with prior art, the composite sensor provided by the utility model can effectively adapt to the installation environment with limited height, and it is more convenient to adjust the cable outlet direction. The wiring flexibility is higher in narrow space.

Description

Technical Field

[0001] This utility model relates to the field of utility model technology, and in particular to a composite sensor. Background Technology

[0002] In many important fields such as machinery industry, shipbuilding, and rail transportation, vibration and shock composite sensors are widely used as key monitoring devices for equipment condition monitoring, fault early warning and diagnostic analysis, playing an irreplaceable role in ensuring the safe operation of equipment.

[0003] Traditional vibration and shock sensors often employ a top-out design, where the signal transmission cable emerges from the top of the sensor housing. This structure requires sufficient height space above the sensor during installation to accommodate cable connectors and bends. However, in many applications, to more accurately capture the dynamic response characteristics of the measured component, the sensor needs to be installed as close to the vibration source as possible. The structural space around the installation location is often very limited, especially in enclosed structures or compact equipment where height is restricted, making proper installation difficult with traditional top-out designs.

[0004] Currently, a common solution is to install a 90° bend adapter on top of the sensor, or use an accessory structure similar to a bend connector, to change the cable's direction from vertical to horizontal, thus reducing the need for vertical space. However, this type of adapter solution still has certain limitations: on the one hand, the bend structure itself has a certain height, which still takes up installation space above the sensor; on the other hand, the connection between the bend connector and the sensor interface has directional uncertainty, making it difficult to accurately control the final cable exit position. To meet specific wiring path requirements, installers usually need to repeatedly adjust the angle of the sensor or adapter with the help of shims and other auxiliary parts, which is cumbersome and reduces installation efficiency.

[0005] Therefore, there is an urgent need for a composite sensor that can effectively adapt to height-restricted installation environments, while also making it easier to adjust the direction of cable exit and providing greater flexibility in wiring within narrow spaces. Utility Model Content

[0006] This invention addresses the technical problems of height limitations and difficulty in adjusting cable exit direction during the installation of composite sensors in existing technologies. It provides a composite sensor that effectively adapts to height-constrained installation environments, facilitates cable exit direction adjustment, and offers greater flexibility in wiring within confined spaces.

[0007] A composite sensor, comprising: The housing has a cable mounting section on its side; The sensor sensing component is fixedly installed inside the housing; A cable assembly passes through the cable mounting portion and is connected to the sensor sensing component. The housing has mounting holes configured to cooperate with locking components to fix the housing to the surface to be tested.

[0008] Preferably, the housing comprises: The outer casing has an accommodating cavity inside and an opening at the top. A central post is fixedly installed inside the accommodating cavity, and the central post has a through-hole structure; A cover plate is disposed on the top of the housing, and the cover plate is fixedly connected to the housing; The bottom of the outer casing and the cover plate are provided with mating holes for installing the center post, and the mating holes and the center post form the mounting holes.

[0009] Preferably, the central post is disposed on the side of the housing near the cable mounting portion.

[0010] Preferably, the central column is fixedly connected to the outer shell and to the cover plate by welding.

[0011] Preferably, the housing further includes: A groove is provided at the bottom of the housing, the groove is coaxially arranged with the mating hole, and the groove is located on the outer side of the housing away from the cover plate.

[0012] Preferably, the housing further includes: A limiting block is disposed within the accommodating cavity, with its top abutting against the bottom of the cover plate to limit the position of the cover plate.

[0013] Preferably, the sensor sensing component includes: A sensitive element is used to collect vibration signals from the surface to be detected; A conditioning board, which is connected to the sensitive element and the cable assembly, is used to receive and process the vibration signal and transmit it to the processor through the cable assembly.

[0014] Preferably, the sensing element is a MEMS chip.

[0015] Preferably, the housing further includes: Positioning grooves are provided on the inner wall of the housing, and the two positioning grooves are respectively used to cooperate with the two sides of the conditioning plate.

[0016] Preferably, the upper end face of the conditioning plate is attached to the lower surface of the cover plate, and the lower end face of the conditioning plate is attached to the bottom plate of the outer casing.

[0017] Preferably, the side of the housing is a plane, and the cable mounting portion is disposed on the outside of the plane.

[0018] Preferably, the cable assembly includes: Cables; A clamping element is disposed at the front end of the cable, and the clamping element is used to cooperate with the cable mounting part; A connecting tube, fitted onto the outside of the cable, is used to connect the clamping member to the cable.

[0019] Preferably, the cable mounting part is provided with a cable hole, the clamping member is interference-fitted with the cable hole, and the clamping member is welded to the housing.

[0020] Compared with existing technologies, the composite sensor provided by this utility model has several advantages. First, it comprises a housing, a sensor sensing component, and a cable assembly. The housing has a cable mounting section on its side, and the sensor sensing component is fixedly mounted inside the housing. The sensor sensing component collects vibration and impact signals at the detected location. The cable assembly passes through the cable mounting section and connects to the sensor sensing component, transmitting the signals collected by the sensor sensing component. Because the cable assembly is located on the side of the housing and exits from the side, compared to the top exit of existing technologies, the overall height of the composite sensor is effectively reduced. Second, it also includes mounting holes located inside the housing. These mounting holes cooperate with locking components. The locking components pass through the mounting holes and fix the housing to the surface to be detected. When fixing the composite sensor, the cable exit direction is adjusted according to the installation environment, and then the housing is fixed using the locking components. The cable exit direction can be flexibly selected, greatly satisfying the requirements for installation and wiring of the composite sensor in different directions. This meets the needs of complex, confined, and height-restricted installation environments for large engineering machinery such as tunneling machines and shield tunneling machines. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1An exploded view of a composite sensor provided in an embodiment of this utility model is shown as a structural schematic diagram. Figure 2 A schematic diagram of the structure of a composite sensor provided in an embodiment of this utility model (after assembly); Figure 3 for Figure 2 Sectional view of AA.

[0023] Figure descriptions: 1. Housing; 2. Cable mounting section; 3. Cable assembly; 4. Sensing element; 5. Conditioning plate; 11. Outer shell; 12. Receiving cavity; 13. Central column; 14. Cover plate; 15. Groove; 16. Limiting block; 17. Positioning groove; 31. Cable; 32. Clamping component; 33. Connecting pipe. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0026] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0027] like Figures 1 to 3 As shown, this utility model provides a composite sensor, including: a housing 1, with a cable mounting part 2 provided on the side of the housing 1; a sensor sensing component, fixedly disposed inside the housing 1; a cable assembly 3, passing through the cable mounting part 2, and the cable assembly 3 being connected to the sensor sensing component; and a mounting hole provided inside the housing 1, the mounting hole being configured to cooperate with a locking member to fix the housing 1 to the surface to be detected.

[0028] Traditional vibration and shock sensors often employ a top-outlet design, where the signal transmission cable emerges from the top of the sensor housing 1. This structure requires sufficient height space above the sensor during actual installation to accommodate cable connectors and bends. Currently, a common solution is to add a 90° bend adapter to the top of the sensor, or use an accessory structure similar to a bend connector, to change the cable's vertical exit direction to a horizontal one, thus reducing the need for vertical space. However, these adapter solutions still have limitations: firstly, the bend structure itself has a certain height, still encroaching on the installation space above the sensor; secondly, the connection between the bend connector and the sensor interface has directional uncertainty, making it difficult to accurately control the final cable exit position. To meet specific wiring path requirements, installers typically need to repeatedly adjust the angle of the sensor or adapter using shims and other auxiliary components, a cumbersome process that reduces installation efficiency.

[0029] Compared with existing technologies, the composite sensor provided by this utility model has several advantages. First, it comprises a housing 1, a sensor sensing component, and a cable assembly 3. The housing 1 has a cable mounting portion 2 on its side. The sensor sensing component is fixedly mounted inside the housing 1 and is used to collect vibration and impact change signals at the detected location. The cable assembly 3 passes through the cable mounting portion 2 and connects to the sensor sensing component, transmitting the signals collected by the sensor sensing component. Since the cable assembly 3 is located on the side of the housing 1 and exits from the side, compared to the top exit of existing technologies, it effectively reduces the overall height of the composite sensor. Second, it also includes mounting holes located inside the housing 1. These mounting holes cooperate with locking components. The locking components pass through the mounting holes and fix the housing 1 to the surface to be detected. When the composite sensor needs to be fixed, the exit direction of the cable assembly 3 is first adjusted according to the installation environment, and then the housing 1 is fixed using the locking components. The exit direction of the cable assembly 3 can be flexibly selected, greatly satisfying the requirements for installation and wiring of the composite sensor in different directions.

[0030] The composite sensor is installed on the surface to be tested. The sensor's sensitive component acquires the vibration signal of the surface to be tested. The vibration signal is transmitted through the cable assembly 3. On the one hand, this technical solution reduces the overall height of the composite sensor by placing the cable assembly 3 on the side of the housing 1, avoiding it from appearing from the top. On the other hand, the housing 1 is fixed by locking parts and mounting holes. Before fixing the housing 1, the cable assembly 3 can be adjusted by rotating the housing 1. The installation of the composite sensor is simple, and the adjustment of the cable direction is more convenient.

[0031] In one specific embodiment of this invention, the locking component is a mounting screw, which is used to pass through the mounting hole and be fixedly connected to the surface to be tested.

[0032] In the above structure, as one embodiment, the housing 1 in this utility model includes an outer shell 11, a central column 13, and a cover plate 14. The outer shell 11 has a receiving cavity 12 and an opening at its top. The central column 13 is fixedly disposed in the receiving cavity 12 and has a through-hole structure. The central column 13 is used in conjunction with a locking member. The cover plate 14 is disposed on the top of the outer shell 11 and is fixedly connected to the outer shell 11. The bottom of the outer shell 11 and the cover plate 14 are provided with mating holes for installing the central column 13. The mating holes and the central column 13 form the mounting holes.

[0033] Specifically, a first mating hole is provided at the bottom of the outer shell 11 to position the bottom end of the central column 13. A second mating hole is provided on the cover plate 14, which is adapted to the outer diameter of the central column 13. The top end of the central column 13 is positioned by the mating of the second mating hole and the central hole.

[0034] Furthermore, as one embodiment, the bottom end of the central column 13 in this utility model embodiment is fixedly disposed in the first mating hole, and the top end of the central column 13 is fixedly disposed in the second mating hole.

[0035] In one more specific embodiment, the central column 13 and the outer shell 11, as well as the central column 13 and the cover plate 14, are fixedly connected by welding to ensure the sealing of the composite sensor.

[0036] Furthermore, as one embodiment, the central pillar 13 in this utility model embodiment is located on the side of the outer casing 11 near the cable mounting portion 2. This arrangement facilitates the welding and assembly of other internal components (such as a conditioning plate).

[0037] In the above structure, as one embodiment, the housing 1 in this utility model embodiment also includes a groove 15. The groove 15 is disposed at the bottom of the housing 11. The groove 15 is coaxially disposed with the mating hole, and the groove 15 is disposed on the outer side of the housing 11 away from the cover plate 14. By providing the groove 15, it is possible to avoid the impact on the surface to be tested after the housing 11 is welded to the central column 13.

[0038] Furthermore, as one embodiment, the housing 1 in this utility model embodiment also includes a limiting block 16. The limiting block 16 is fixedly disposed in the accommodating cavity 12. The top of the limiting block 16 abuts against the bottom of the cover plate 14, thereby limiting the cover plate 14. After the internal structure of the housing 1 is assembled, the cover plate 14 is placed on the top of the outer shell 11, and the limiting block 16 limits the cover plate 14. The cover plate 14 is then laser-welded to the central column 13 for fixation.

[0039] Furthermore, in this embodiment of the present invention, the limiting block 16 and the outer shell 11 are specifically integrally formed structures.

[0040] In the above structure, as one embodiment, the sensor sensing component in this utility model includes a sensing element 4 and a conditioning plate 5. The sensing element 4 is disposed in the accommodating cavity 12. The vibration signal of the surface to be detected is collected by the sensing element 4. The conditioning plate 5 is connected to the sensing element 4 and the cable assembly 3. The conditioning plate 5 is used to receive and process the vibration signal and transmit it to the processor (not shown in the figure) through the cable assembly 3.

[0041] Furthermore, in this embodiment of the invention, the sensitive element 4 is specifically a MEMS chip. This simplifies the sensor structure and makes assembly easier. The conditioning plate 5 is confined and fixed within the sensor cavity by the outer shell 11 and the cover plate 14.

[0042] In the above structure, as one embodiment, the housing 1 in this utility model embodiment also includes a positioning groove 17. The positioning groove 17 is disposed on the inner wall of the housing 11. There are two positioning grooves 17, which are used to cooperate with the two sides of the conditioning plate 5.

[0043] In the above structure, as one embodiment, the upper end surface of the conditioning plate 5 is attached to the lower surface of the cover plate 14, and the lower end surface of the conditioning plate 5 is attached to the bottom plate of the housing 1.

[0044] The conditioning plate 5 is fixed by the positioning groove 17, the cover plate 14 and the bottom surface of the outer shell 11 to prevent the conditioning plate 5 from moving during the testing process.

[0045] In the above structure, as one embodiment, the side of the housing 1 in this utility model embodiment is specifically a plane, and the cable mounting part 2 is disposed on the outer side of the plane.

[0046] Furthermore, as one embodiment, the cable assembly 3 in this utility model includes a cable 31, a clamping member 32, and a connecting tube 33. The clamping member 32 is disposed at the front end of the cable 31 and is used to cooperate with the cable mounting part 2. The connecting tube 33 is fitted on the outside of the cable 31 and is used to fix the clamping member 32 to the cable 31. The front end of the cable 31 passes through the connecting tube 33, the clamping member 32, and the cable mounting part 2 and is connected to the conditioning plate 5. The clamping member 32 cooperates with and is fixed to the cable mounting part 2. Finally, the clamping member 32 is connected to the cable 31 through the connecting tube 33, thereby completing the installation of the cable 31.

[0047] More specifically, in this embodiment of the present invention, the connecting tube 33 is a heat shrink tubing. At room temperature, the heat shrink tubing is slidably fitted onto the cable 31. After the clamping member 32 is fixed to the cable mounting part 2, part of the heat shrink tubing is fitted onto the clamping member 32 and part of the heat shrink tubing is fitted onto the cable 31. The heat shrink tubing is heated, and the diameter of the heat shrink tubing is reduced so that the cable 31 and the clamping member 32 are connected, and a waterproof effect is achieved.

[0048] Furthermore, as one embodiment, the cable mounting part 2 is provided with a cable hole, and the clamping member 32 is specifically interference-fitted with the cable hole, and the clamping member 32 is fixedly connected to the housing 1 by welding. After the sensor is installed, the clamping member 32 can be pressed with a press to tighten the cable.

[0049] The above description is merely an embodiment of this utility model. It should be noted that those skilled in the art can make improvements without departing from the inventive concept of this utility model, but these improvements all fall within the protection scope of this utility model.

Claims

1. A composite sensor, characterized in that, include: The housing (1) has a cable mounting part (2) on its side. The sensor sensing component is fixedly installed inside the housing (1); A cable assembly (3) passes through the cable mounting part (2) and is connected to the sensor sensing component; The housing (1) is provided with mounting holes, which are used to cooperate with locking components to fix the housing (1) on the surface to be tested.

2. The composite sensor according to claim 1, characterized in that, The housing (1) includes: The outer shell (11) has a cavity (12) inside and an opening at the top. A central column (13) is fixedly disposed in the accommodating cavity (12), and the central column (13) has a through hole structure; A cover plate (14) is disposed on the top of the outer casing (11), and the cover plate (14) is fixedly connected to the outer casing (11); The bottom of the outer shell (11) and the cover plate (14) are provided with mating holes for installing the center post (13), and the mating holes and the center post (13) form the mounting hole.

3. The composite sensor according to claim 2, characterized in that, The central column (13) is located on the side of the outer casing (11) near the cable mounting part (2).

4. The composite sensor according to claim 2, characterized in that, The central column (13) and the outer shell (11), as well as the central column (13) and the cover plate (14), are fixedly connected by welding.

5. The composite sensor according to claim 2, characterized in that, The housing (1) further includes: A groove (15) is provided at the bottom of the housing (11), the groove (15) is coaxially arranged with the mating hole, and the groove (15) is located on the outer side of the housing (11) away from the cover plate (14).

6. The composite sensor according to claim 2, characterized in that, The housing (1) further includes: A limiting block (16) is disposed in the accommodating cavity (12), the top of the limiting block (16) abuts against the bottom of the cover plate (14) to limit the cover plate (14).

7. The composite sensor according to any one of claims 2 to 6, characterized in that, The sensor sensing component includes: Sensing element (4) is used to collect vibration signals from the surface to be detected; Conditioning plate (5), which is connected to the sensitive element (4) and the cable assembly (3), is used to receive and process the vibration signal and transmit it to the processor through the cable assembly (3).

8. The composite sensor according to claim 7, characterized in that, The sensitive element (4) is specifically a MEMS chip.

9. The composite sensor according to claim 7, characterized in that, The housing (1) further includes: Positioning grooves (17) are provided on the inner wall of the outer shell (11), and the two positioning grooves (17) are respectively used to cooperate with the two sides of the conditioning plate (5).

10. The composite sensor according to claim 9, characterized in that, The upper end face of the conditioning plate (5) is attached to the lower surface of the cover plate (14), and the lower end face of the conditioning plate (5) is attached to the bottom plate of the outer shell (11).

11. The composite sensor according to any one of claims 1 to 6, 8 to 10, characterized in that, The side of the housing (1) is specifically a plane, and the cable mounting part (2) is located on the outside of the plane.

12. The composite sensor according to any one of claims 1 to 6, 8 to 10, characterized in that, The cable assembly (3) includes: Cable (31); A clamping member (32) is disposed at the front end of the cable (31), and the clamping member (32) is used in conjunction with the cable mounting part (2); A connecting tube (33) is fitted onto the outside of the cable (31) for connecting the clamping member (32) to the cable (31).

13. The composite sensor according to claim 12, characterized in that, The cable mounting part (2) is provided with a cable hole, the clamping member (32) is interference-fitted with the cable hole, and the clamping member (32) is welded to the housing (1).

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