Vibration-temperature composite sensor

Abstract

This invention provides a vibration-temperature composite sensor, belonging to the field of temperature and vibration measurement technology. It includes a housing, an adapter, and a sensing component. The housing has an internal mounting cavity with a downward-through connecting hole at the bottom. The adapter is located at the bottom of the housing. Multiple mounting holes are provided on one end of the adapter facing the housing, spaced around the connecting hole. The other end of the adapter is screwed onto the substrate to be measured. The sensing component includes a vibration sensing component fixed to the side wall of the mounting cavity, a temperature sensing component confined within the connecting hole, and adapter cables connected to both the temperature and vibration sensing components. A positioning element passes through the housing, screwing downward into one set of mounting holes. The vibration-temperature composite sensor provided by this invention allows for multi-angle adjustment of the adapter cable around the adapter, extending cable life and ensuring the continuity and accuracy of sensor signal transmission.

Description

Technical Field

[0001] This invention belongs to the field of temperature and vibration measurement technology, and more specifically, relates to a vibration-temperature composite sensor. Background Technology

[0002] Compared to single-function temperature or vibration sensors, vibration-temperature composite sensors can simultaneously monitor and measure vibration and temperature signals, and are therefore widely used in onboard safety monitoring systems for rail transit vehicles. A typical vibration-temperature composite sensor includes an external housing, a vibration sensing component, a temperature sensing component, and an adapter cable. The adapter cable needs to extend into the housing and connect to the vibration and temperature sensing components respectively.

[0003] In existing technologies, the direction of the adapter cable varies depending on the installation location of the sensor. In some scenarios, the cable needs to be rotated 180° or even more in the opposite direction to meet the installation requirements. Long-term reverse bending not only affects the service life of the cable, but also affects the continuity and accuracy of signal transmission. Summary of the Invention

[0004] The purpose of this invention is to provide a vibration-temperature composite sensor, which aims to solve the technical problems of existing sensor adapter cables affecting the service life of the adapter cables and the continuity of signal transmission in scenarios with large-angle flipping and bending.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a vibration-temperature composite sensor, comprising:

[0006] The enclosure has an internal mounting cavity; the bottom of the mounting cavity has a downward-through connecting hole.

[0007] An adapter is located at the bottom of the packaging housing; one end of the adapter facing the packaging housing has multiple mounting holes, which are arranged around the connection hole; the other end of the adapter is used to screw onto the substrate to be tested; and

[0008] The sensing assembly includes a vibration sensing assembly fixed to the side wall of the mounting cavity, a temperature sensing assembly confined within the connection hole, and adapter cables respectively connected to the temperature sensing assembly and the vibration sensing assembly; the temperature sensing assembly extends axially along the adapter base, with its sensing end passing downward through the adapter base and contacting the substrate to be tested; one end of the adapter cable extends out of the encapsulation housing from the side wall of the mounting cavity;

[0009] The encapsulation housing contains a positioning element; after the outlet end of the adapter cable points in a preset direction, the positioning element is screwed downward into one of the mounting holes.

[0010] Compared with the prior art, the solution shown in this application has an internal mounting cavity in the encapsulation shell, which can encapsulate the vibration sensing component. By setting the adapter, on the one hand, the sensor as a whole can be connected and fixed to the substrate under test; on the other hand, the temperature sensing component passes through the adapter along the axial direction of the adapter and contacts the substrate under test, which can ensure the coaxial setting of the temperature sensing component and the adapter, thereby facilitating the mechanical protection of the temperature sensing component through the adapter.

[0011] Furthermore, the adapter is equipped with multiple mounting holes, which can provide multiple positioning points at different positions for fixing the positioning components, thereby realizing multi-point connection between the packaging shell and the adapter. This enables multi-angle adjustment of the adapter cable in the circumferential direction of the adapter, thus avoiding the problem of large-angle reverse bending of the adapter cable, extending the service life of the cable, and ensuring the continuity and accuracy of sensor signal transmission.

[0012] In one possible implementation, two positioning elements are provided, and the number of mounting holes in a set is two; the two positioning elements are symmetrically distributed on both radial sides of the temperature sensing component.

[0013] The plane containing the axes of the two sets of positioning components is defined as the separating plane; the adapter cable and the vibration sensing component are respectively distributed on both sides of the separating plane.

[0014] By setting two sets of positioning elements on the radial sides of the temperature sensing component, the connection stability between the encapsulation shell and the adapter can be ensured; and by distributing the adapter cable and the vibration sensing component on both sides of the partition surface, the connection between the adapter cable and the vibration sensing component and the temperature sensing component can be easily realized, avoiding mutual interference.

[0015] In some embodiments, the encapsulation housing is a pentagonal prism structure formed by longitudinally cutting a corner of a quadrangular prism, and the two positioning members are distributed at the two vertices of the pentagonal prism structure and located at both ends on the side where the corner is cut.

[0016] The mounting cavity has a pentagonal cross-section; the mounting cavity has a first sidewall parallel to the side where the chamfer is located, two second sidewalls adjacent to and opposite to the first sidewall, and two third sidewalls perpendicularly connected to each other, and the third sidewalls are connected to the adjacent second sidewalls.

[0017] The apex of the corner where the positioning element is placed is defined as the positioning angle, and the two outer sidewalls of the encapsulation housing forming the positioning angle and the adjacent second sidewall form a triangular support structure;

[0018] The vibration sensing component is provided on the first sidewall, and the vibration sensing component extends to one of the second sidewalls; the adapter cable exits the encapsulation housing from one of the third sidewalls.

[0019] By rationally setting the shape of the encapsulation housing, on the one hand, the two positioning components are symmetrically distributed at both ends of the encapsulation housing to ensure positioning stability; on the other hand, it can adapt to the shape of the internal mounting cavity to meet the relative position requirements between the vibration sensing component, the temperature sensing component, and the adapter cable.

[0020] By setting the shape of the mounting cavity to form a first sidewall and a second sidewall, it is possible to facilitate close-range installation between the vibration sensing component and the temperature sensing component, ensuring that the vibration sensing component and the temperature sensing component are in close proximity. This is beneficial for axial vibration monitoring of the temperature sensing component and avoids the technical problem of increased uncertainties due to excessive spacing, which affects the accuracy of axial vibration detection.

[0021] In one possible implementation, the packaging housing includes:

[0022] The mounting base has a recessed groove that is recessed from the top to the bottom, the bottom of the recessed groove is recessed to form the mounting cavity, and a stepped surface is formed between the mounting cavity and the recessed groove.

[0023] A cover plate is placed on the stepped surface to seal the mounting cavity;

[0024] A flow guiding structure is provided on the mounting base, with one end connected to the connection between the cover plate and the mounting base, and the other end leading out of the mounting base.

[0025] By setting up a flow guiding structure, rainwater that may be present in the gaps at the connection between the cover plate and the mounting base can be diverted, preventing water from seeping into the mounting cavity of the enclosure and affecting the accuracy of the vibration sensing components and temperature sensing components.

[0026] In some embodiments, the flow guiding structure includes:

[0027] The first guide channel is provided on the stepped surface and extends around the edge of the cover plate;

[0028] Multiple sets of first guide holes are spaced apart on the stepped surface; the upper end of the first guide hole is connected to the first guide groove, and the lower end extends along the axial direction of the temperature sensing component, and guides the water flow to the outside of the mounting base.

[0029] By setting the first guide channel, the water flow at the connection between the cover plate and the mounting base can be gathered. By setting multiple sets of first guide holes, the water flow gathered in the first guide channel can be diverted and led out of the encapsulation shell.

[0030] For example, the flow guiding structure further includes:

[0031] The second guide channel is arranged parallel to the first guide channel and is located at the bottom of the mounting cavity;

[0032] The outlet hole has one end connected to the second guide groove and the other end extending to the outside of the mounting base;

[0033] The lower ends of multiple sets of the first guide holes are all connected to the second guide groove, so that the first guide holes can guide water flow to the outside of the mounting base through the second guide groove and the outlet hole.

[0034] By setting a second guide channel and an outlet hole, water flow can be guided towards the bottom of the packaging shell, which is beneficial for drawing water out from the bottom of the packaging shell; or, it is convenient to use an adapter to export water flow outward.

[0035] In one possible implementation, an intermediate seat is provided between the encapsulation housing and the adapter, the intermediate seat covering the top of the plurality of mounting holes, and the intermediate seat is provided with a first clearance hole corresponding to the upper and lower parts of the positioning member, and a second clearance hole corresponding to the upper and lower parts of the temperature sensing component.

[0036] By setting an intermediate seat, the intermediate seat can be placed on top of the adapter, thereby covering multiple adapter holes. This prevents water from entering the adapter holes and corroding the adapter during windy and rainy weather, which helps to improve the sustainable use of the adapter and ensures the protection of the temperature sensing components by the adapter.

[0037] In some embodiments, the intermediate seat is further provided with a current collection cavity surrounding the temperature sensing component, and the current collection cavity is connected to the flow guiding structure of the packaging shell.

[0038] By setting up a flow collection cavity, the water flow inside the packaging shell can be diverted and concentrated, which helps to ensure the sealing of the packaging shell.

[0039] For example, the side wall of the collection cavity is provided with a drain hole that extends to the outside of the intermediate seat, and the drain hole is sealed with a rubber plug.

[0040] By setting up a drain hole and a rubber plug, water can be stored so that the water in the collection chamber can be discharged through the drain hole during regular maintenance.

[0041] In one possible implementation, the temperature sensing component is provided with two sets of annular limiting platforms spaced apart vertically, with a sealing ring sandwiched between the annular limiting platforms, and the sealing ring abutting against the hole wall of the adapter.

[0042] By setting up an annular limiting platform to limit the sealing ring, the sealing ring is prevented from sliding up and down on the temperature sensing component. The sealing ring also serves to achieve secondary interception of water flow, preventing water entering the adapter from affecting the temperature sensing end of the temperature sensing component. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of the present invention, 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 This is a schematic diagram of the exploded decomposition structure of the vibration-temperature composite sensor provided in an embodiment of the present invention;

[0045] Figure 2 This is a schematic diagram of the internal structure of the mounting base provided in an embodiment of the present invention;

[0046] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0047] Figure 4 A schematic diagram of the bottom structure of the mounting base provided in an embodiment of the present invention;

[0048] Figure 5 This is a schematic diagram of the cross-sectional structure of the mounting base provided in an embodiment of the present invention;

[0049] Figure 6 This is a schematic diagram of the flow collection cavity inside the intermediate seat provided in an embodiment of the present invention;

[0050] Figure 7 This is a schematic diagram of the assembly structure of the vibration-temperature composite sensor provided in an embodiment of the present invention.

[0051] In the diagram: 1. Encapsulation housing; 11. Cover plate; 12. Mounting base; 121. Mounting cavity; 1211. First side wall; 1212. Second side wall; 1213. Third side wall; 122. Stepped surface; 123. First guide groove; 124. First guide hole; 125. Second guide groove; 126. Outlet hole; 127. Connecting hole; 2. Adapter base; 21. Mounting hole; 3. Vibration sensing component; 4. Temperature sensing component; 41. Annular limiting platform; 42. Sealing ring; 6. Adapter cable; 7. Positioning component; 8. Intermediate seat; 81. First clearance hole; 82. Second clearance hole; 83. Collector cavity; 84. Rubber plug; 85. Inlet hole. Detailed Implementation

[0052] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0053] It should be noted that when an element is referred to as being "set on" another element, it can be directly on or indirectly on that other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0054] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0055] It should be noted that the terms "upper" and "lower" in this application refer to the vertical axis of the adapter 2. For ease of understanding, the terms "upper" and "lower" are used in this application. Figure 1 The direction of the middle arrow indicates up and down; specifically, with Figure 1 For example, the encapsulation housing 1 is located above the adapter 2.

[0056] It should be understood that, in actual installation, the adapter 2 can be installed in two ways: either by screwing it downwards directly, in which case the adapter cable 6 extends horizontally; or by tilting its axis to the vertical direction, in which case the adapter cable 6 extends upwards at an angle. It should be noted that the terms "upper" and "lower" used above are only for the convenience of describing the relative axial positions of the housing 1 and the adapter 2.

[0057] In the prior art, the encapsulation housing 1 is usually screwed onto the mounting position by a threaded shaft section at the bottom; the temperature sensing end of the temperature sensing part extends directly out of the housing to make as much contact as possible with the substrate under test; when it is necessary to adjust the direction of the adapter cable 6, the bottom screwed part of the encapsulation housing 1 needs to be loosened to adjust the output direction of the adapter cable 6 appropriately; however, after the sensor has been used for a period of time, the vibration of the substrate under test will further loosen the screwed end of the encapsulation housing 1, resulting in unstable and inaccurate vibration measurement signals.

[0058] It is important to understand that when the adapter cable 6 is bent or bent for a long time, the internal connecting wires are prone to breakage, resulting in unstable connection at the wiring point and intermittent signal. Therefore, it will affect the continuity of signal transmission and thus affect the accuracy of sensor detection.

[0059] Please refer to the following: Figures 1 to 7 The vibration-temperature composite sensor provided by the present invention will now be described. The vibration-temperature composite sensor includes a housing 1, an adapter 2, and a sensing component. The housing 1 has a mounting cavity 121 inside; the bottom of the mounting cavity 121 has a downwardly penetrating connecting hole 127; the adapter 2 is located at the bottom of the housing 1; one end of the adapter 2 facing the housing 1 has multiple mounting holes 21, which surround the connecting hole 127; the other end of the adapter 2 is used to screw onto the substrate to be measured; the sensing component includes a vibration sensing component 3 fixed to the side wall of the mounting cavity 121. The device includes a temperature sensing component 4, which is confined within the connection hole 127, and an adapter cable 6, which is connected to the temperature sensing component 4 and the vibration sensing component 3 respectively. The temperature sensing component 4 extends axially along the adapter seat 2, and its sensing end passes downward through the adapter seat 2 and contacts the substrate to be tested. One end of the adapter cable 6 passes through the encapsulation housing 1 from the side wall of the mounting cavity 121. A positioning member 7 is provided inside the encapsulation housing 1. After the end of the adapter cable 6 points to a preset direction, the positioning member 7 is screwed downward into one of the mounting holes 21.

[0060] It should be understood that in this application, the vibration sensing component 3, the temperature sensing component 4, and the adapter cable 6 are rationally arranged within the encapsulation housing 1, and the adapter 2 enables a screw connection with the substrate under test, allowing the sensor to be easily installed in different positions and adapting to various installation scenarios. The temperature sensing component 4 extends axially along the adapter 2 and contacts the substrate under test, ensuring the accuracy of temperature measurement.

[0061] Specifically, the temperature sensing component 4 includes a temperature probe with the aforementioned temperature-sensing end. Therefore, when the temperature probe passes downward through the connection hole 127 and enters the adapter 2, it can extend from the screw-on end of the adapter 2 and approach the substrate to be tested. Alternatively, the temperature-sensing end of the temperature probe passes downward through the connection hole 127 and enters the adapter 2, approaching the screw-on end of the adapter 2. Since the mounting hole on the adapter 2 is through its screw-on end, the temperature probe can monitor the temperature of the substrate to be tested through the through end of the mounting hole. Specifically, the temperature probe is placed in a thin-walled long tube, and the inside is filled with thermally conductive insulating glue to improve the temperature response time. The temperature probe passes through the thin-walled long tube.

[0062] In addition, the vibration sensing component 3 typically includes two sets of chips as shown in the attached figure, and the two sets of chips are electrically connected. Therefore, they are usually fixed side by side on the side wall of the mounting cavity 121. The vibration sensing component 3 includes a rigid-flexible circuit unit, which is mainly used to monitor the axial vibration information of the temperature sensing component 4 and to process and transmit the signal through the circuit unit. It should be noted that the specific temperature sensing principle of the temperature sensing component 4, the vibration measurement principle of the vibration sensing component 3, and the electrical connection relationship between the temperature sensing component 4, the vibration sensing component 3 and the adapter cable 6 are all existing technologies and will not be described in detail here.

[0063] It should be noted that, since one end of the adapter cable 6 passes through the side wall of the mounting cavity 121 and exits the encapsulation housing 1, and the temperature sensing end of the temperature sensing component 4 passes downward through the adapter seat 2, a certain angle is formed between the axial directions of the adapter cable 6 and the temperature sensing component 4. When the adapter seat 2 is fixed and the encapsulation housing 1 is rotated, the encapsulation housing 1 drives the adapter cable 6 to rotate around the axial direction of the temperature sensing component 4, thereby changing the extension direction of the adapter cable 6 in the circumferential direction of the temperature sensing component 4.

[0064] The adapter 2 structure proposed in this application is provided with multiple mounting holes 21. By fixing the positioning member 7 in different mounting holes 21, the positioning member 7 can be positioned in different mounting holes 21, thereby enabling the adapter cable 6 to extend at multiple different angles. However, the adapter 2 does not enable the adapter cable 6 to extend in any direction around the temperature sensing component 4, but rather in several specific commonly used positions. When the adapter cable 6 needs to be set between two adjacent positions, the adapter cable 6 can be fixed in the adjacent extension direction and bent at a small angle. In this case, compared with bending at a large angle, the damage to the adapter cable 6 can be greatly reduced, and the service life of the adapter cable 6 can be extended.

[0065] Optionally, eight mounting holes 21 are provided, and the eight mounting holes 21 are equally spaced around the connecting hole 127; the eight mounting holes 21 can achieve a mounting accuracy of within ±22.5° along the rotation axis of the adapter 2 for the encapsulation housing 1.

[0066] Specifically, the aforementioned positioning element 7 is a positioning bolt, which extends downward from the top of the encapsulation housing 1 and is screwed into the adapter 2.

[0067] Compared with the prior art, the vibration-temperature composite sensor provided by this invention has an internal mounting cavity 121 in the encapsulation housing 1, which can encapsulate the vibration sensing component 3. By setting the adapter 2, on the one hand, the sensor as a whole can be connected and fixed to the substrate to be measured; on the other hand, the temperature sensing component 4 extends through the adapter 2 along the axial direction of the adapter 2 and contacts the substrate to be measured, which can ensure that the temperature sensing component 4 and the adapter 2 are coaxially set, thereby facilitating the mechanical protection of the temperature sensing component 4 through the adapter 2.

[0068] Furthermore, the adapter 2 is provided with multiple mounting holes 21, which can provide multiple positioning points at different positions for fixing the positioning component 7, thereby realizing multi-point connection between the encapsulation housing 1 and the adapter 2, and thus realizing multi-angle adjustment of the adapter cable 6 in the circumferential direction of the adapter 2, thereby avoiding the problem of large-angle reverse bending of the adapter cable 6, extending the service life of the cable, and ensuring the continuity and accuracy of sensor signal transmission.

[0069] Please see Figure 1 In some possible embodiments, there are two positioning elements 7, and the number of a set of mounting holes 21 is two; the two positioning elements 7 are symmetrically distributed on both sides of the temperature sensing component 4; wherein, the plane where the axes of the two sets of positioning elements 7 are located is defined as the separation plane; the adapter cable 6 and the vibration sensing component 3 are correspondingly distributed on both sides of the separation plane.

[0070] By setting two sets of positioning elements 7 on the radial sides of the temperature sensing component 4, the connection stability between the encapsulation housing 1 and the adapter 2 can be guaranteed; the adapter cable 6 is prevented from shaking or shifting during installation or use, further ensuring the stability of signal transmission.

[0071] By distributing the adapter cable 6 and the vibration sensing component 3 on both sides of the partition surface, the adapter cable 6 can be easily connected to the vibration sensing component 3 and the temperature sensing component 4, avoiding mutual interference; this makes the internal structure layout of the sensor more reasonable, reduces mutual interference, and helps improve the overall performance of the sensor.

[0072] It is important to understand that the adapter cable 6 needs to be connected to the temperature sensing component 4 and the vibration sensing component 3 respectively, and the two sets of chips of the vibration sensing component 3 also need to be connected and fixed by adapter cables. Therefore, the space of the mounting cavity 121 inside the package housing 1 needs to be large enough to avoid interference between the connecting lines. At the same time, the sealing of the package needs to be ensured in the mounting cavity 121. The larger the space, the greater the potential risk to the sealing effect of the mounting cavity 121.

[0073] If the vibration sensing component 3 and the adapter cable 6 are placed close together, it will facilitate the connection between the adapter cable 6 and the vibration sensing component 3. However, it will also cause the adapter cable 6 to form a dense connection line at the end of its extension into the encapsulation housing 1, while leaving empty space on the opposite side of the adapter cable 6, resulting in an unreasonable arrangement inside the mounting cavity 121.

[0074] In this application, the adapter cable 6 and the vibration sensing component 3 are distributed on both sides of the partition surface, which avoids the stacking of wiring on one side and facilitates the longitudinal insertion of the temperature sensing component 4 between the vibration sensing component 3 and the adapter cable 6, thereby achieving a reasonable layout within the mounting cavity 121.

[0075] It should be noted that the adapter cable 6 and the vibration sensing component 3 are distributed on both sides of the dividing surface; however, the distribution of the adapter cable 6 and the vibration sensing component 3 is not completely isolated on both sides of the dividing surface. For ease of understanding, the receiving cavity 121 is divided into area A and area B by the dividing surface. The main body of the vibration sensing component 3 is fixed in area B. The edge of the vibration sensing component 3 may extend partially into area A or may not extend into area A. The specific situation can be flexibly adjusted according to the size and shape of the vibration sensing component 3. Similarly, the adapter cable 6 enters area A from outside the encapsulation housing 1, that is, the main body of the insertion end is set in area A. However, the adapter cable 6 can still extend into area B to connect with the vibration sensing component 3 or the temperature sensing component 4.

[0076] In another way, the adapter cable 6 and the vibration sensing component 3 are distributed on the radial sides of the temperature sensing component 4, which is used to reasonably arrange the spatial structure inside the accommodating cavity 121.

[0077] Please see Figure 1 and Figure 2 In some embodiments, the encapsulation housing 1 is a pentagonal prism structure formed by longitudinally cutting a corner of a quadrangular prism. Two positioning members 7 are distributed at the two apex corners of the pentagonal prism structure and are located at both ends of the side where the corner is cut. The cross-section of the mounting cavity 121 is a pentagonal structure. The mounting cavity 121 has a first sidewall 1211 parallel to the side where the corner is cut, two second sidewalls 1212 adjacent to and opposite to the first sidewall 1211, and two third sidewalls 1213 perpendicularly connected to each other, and the third sidewall 1213 is connected to the adjacent second sidewall 1212. The apex corner where the positioning member 7 is placed is defined as the positioning angle. The two outer sidewalls of the encapsulation housing 1 forming the positioning angle and the adjacent second sidewall 1212 form a triangular support structure. A vibration sensing component 3 is provided on the first sidewall 1211, and the vibration sensing component 3 extends to one of the second sidewalls 1212. The adapter cable 6 passes through one of the third sidewalls 1213 and exits the encapsulation housing 1.

[0078] By rationally setting the shape of the encapsulation housing 1, on the one hand, the two positioning components 7 are symmetrically distributed at both ends of the encapsulation housing 1 to ensure the stability of the positioning; on the other hand, it can adapt to the shape of the internal mounting cavity 121 to meet the relative position requirements between the vibration sensing component 3, the temperature sensing component 4, and the adapter cable 6.

[0079] By setting the shape of the mounting cavity 121 to form a first sidewall 1211 and a second sidewall 1212, it is possible to facilitate close-range installation between the vibration sensing component 3 and the temperature sensing component 4, ensuring that the vibration sensing component 3 and the temperature sensing component 4 are in close proximity. This is beneficial for axial vibration monitoring of the temperature sensing component 4 and avoids the technical problem of increased uncertainty due to excessive spacing, which affects the accuracy of axial vibration detection.

[0080] In addition, the inclined sidewall at the positioning angle in this application is conducive to setting up a flow guiding structure, thereby better guiding the water flow, improving the waterproof performance of the sensor, and adapting to different working environments.

[0081] It should be understood that by setting the chamfered corner of the quadrangular prism, a chamfered side is formed near the temperature sensing component 4, so that a first sidewall 1211 parallel to the chamfered side is formed inside the mounting cavity 121; the two outer sidewalls of the encapsulation housing 1 forming the positioning angle and the adjacent second sidewall 1212 form a triangular support structure, which can improve the support stability at the second sidewall 1212; when the vibration sensing component 3 is installed on the first sidewall 1211, on the one hand, the stability of the connection side of the vibration sensing component 3 can be enhanced; on the other hand, close-range installation between the vibration sensing component 3 and the temperature sensing component 4 can be achieved, effectively reducing the connection distance between the vibration sensing component 3 and the temperature sensing component 4 within the mounting cavity 121.

[0082] It should be understood that the temperature probe of the temperature sensing component 4 is coaxially arranged with the adapter 2, and the vibration sensing component 3 can be used to measure the vibration signal along the axial direction of the temperature sensing component 4. Within the mounting cavity 121, the distance between the vibration sensing component 3 and the temperature sensing component 4 also affects the accuracy of the vibration measurement. When the vibration sensing component 3 is far from the temperature sensing component 4, when measuring the axial vibration of the temperature sensing component 4, the vibration sensing component 3 will increase the transmission distance of the vibration signal in the radial direction of the temperature sensing component 4, leading to distortion or weakening of the vibration signal detection. In this application, the shape of the mounting cavity 121 and the encapsulation housing 1 is designed to reduce the transmission path of the vibration signal in the radial direction of the temperature sensing component 4, thereby reducing vibration attenuation.

[0083] Furthermore, the two-position inverted conical structure of the adapter provided in this application has a high modal value and minimal attenuation during vibration transmission, which can effectively ensure the accuracy of vibration signal transmission.

[0084] In addition, the two third sidewalls 1213 are arranged perpendicularly to each other, which can ensure the space of the inlet end of the adapter cable 6, avoid the problem of overlapping wire layers at the terminal, and improve the rationality of the internal layout of the mounting cavity 121.

[0085] Please see Figure 2 and Figure 3 In some possible embodiments, the encapsulation housing 1 includes a mounting base 12, a cover plate 11, and a flow guiding structure; the mounting base 12 has a recessed groove that is recessed from the top to the bottom, the bottom of the recessed groove is recessed to form a mounting cavity 121, and a stepped surface 122 is formed between the mounting cavity 121 and the recessed groove; the cover plate 11 is placed on the stepped surface 122 to close the mounting cavity 121; the flow guiding structure is provided on the mounting base 12, and one end is connected to the connection between the cover plate 11 and the mounting base 12, and the other end leads out of the mounting base 12.

[0086] The cover plate 11 seals the mounting cavity 121, ensuring the stability of the internal environment; the design of the flow guiding structure can effectively drain water that may enter the housing, preventing water accumulation from damaging the internal components of the sensor and improving the reliability and durability of the sensor in humid environments.

[0087] Specifically, the cover plate 11 and the mounting base 12 are integrally laser welded to form an effective sealed shielding cavity, which is filled with insulating potting. The potting method and working principle are existing technologies and will not be described in detail here.

[0088] It should be understood that when the vibration temperature composite sensor is installed, it has a vertical axial form for the adapter 2 and a tilted axial extension form. In the latter form, the risk of rainwater leakage at the joint between the cover plate 11 and the mounting base 12 is greater. Rainwater leaking into the cover plate 11 and the mounting base 12 will affect the sealing effect inside the mounting cavity 121.

[0089] In this application, by setting a flow guiding structure, rainwater that may exist in the gap at the connection between the cover plate 11 and the mounting base 12 can be diverted, preventing water from seeping into the mounting cavity 121 of the encapsulation housing 1 and affecting the accuracy of the vibration sensing component 3 and the temperature sensing component 4.

[0090] Optionally, the flow guiding structure can directly guide the water flow from the side wall of the encapsulation housing 1. However, in this case, the water outlet is also prone to backflow of water, which is not conducive to the flow guiding. Therefore, this type of flow guiding structure is suitable for areas with less rainfall.

[0091] Optionally, the flow guiding structure can directly guide the water flow from the bottom of the encapsulation housing 1. In this case, the water flow can be guided out by the adapter 2 or the intermediate seat 8 mentioned later. This allows for the smooth discharge of rainwater and has a wide range of applications.

[0092] Please see Figure 3 In some embodiments, the flow guiding structure includes a first flow guiding groove 123 and multiple sets of first flow guiding holes 124; the first flow guiding groove 123 is disposed on the stepped surface 122 and extends around the edge of the cover plate 11; multiple sets of first flow guiding holes 124 are spaced apart on the stepped surface 122; the upper end of the first flow guiding hole 124 is connected to the first flow guiding groove 123, and the lower end extends along the axial direction of the temperature sensing component 4 and guides the water flow to the outside of the mounting base 12.

[0093] By setting the first guide channel 123, the water flow at the connection between the cover plate 11 and the mounting base 12 can be gathered. By setting multiple sets of first guide holes 124, the water flow gathered in the first guide channel 123 can be diverted and led out of the encapsulation shell 1, effectively avoiding direct contact between water and key components such as the temperature sensing component 4, ensuring the accuracy and stability of temperature measurement, and also improving the waterproof performance of the sensor.

[0094] The first guide channel 123 is arranged in a ring around the cover plate 11, which can ensure full coverage of the joint between the cover plate 11 and the mounting base 12, and realize the centralized treatment of seepage water to be diverted into the first guide channel 123; by setting multiple sets of first guide holes 124, which are distributed at intervals in the circumferential direction of the first guide channel 123, the problem of local concentration of seepage water in the first guide channel 123 is avoided.

[0095] Optionally, the first guide hole 124 may extend obliquely to the outside of the encapsulation housing 1; optionally, a sealing structure needs to be provided at the extension end of each first guide hole 124 to prevent rainwater from entering the encapsulation housing 1 from the first guide hole 124, and after each rain, the water accumulated in the first guide hole 124 needs to be drained.

[0096] Please see Figure 3 and Figure 4 For example, the flow guiding structure also includes a second flow guiding groove 125 and an outlet hole 126; the second flow guiding groove 125 is arranged parallel to the first flow guiding groove 123 and is located at the bottom of the mounting cavity 121; one end of the outlet hole 126 is connected to the second flow guiding groove 125, and the other end extends to the outside of the mounting base 12; wherein, the lower ends of multiple sets of first flow guiding holes 124 are all connected to the second flow guiding groove 125, so that the first flow guiding holes 124 can guide the water flow to the outside of the mounting base 12 through the second flow guiding groove 125 and the outlet hole 126.

[0097] By setting the second guide channel 125 and the outlet hole 126, water flow can be guided towards the bottom of the encapsulation housing 1, which is beneficial for drawing water out from the bottom of the encapsulation housing 1; or, it is convenient to discharge water outward with the help of the adapter 2. Multiple sets of first guide holes 124 discharge water through the second guide channel 125 and the outlet hole 126, forming a more complete drainage path, which can more effectively discharge water entering the encapsulation housing 1, further enhancing the sensor's waterproof capability and ensuring that the sensor can work normally in various complex environments.

[0098] Specifically, the outlet hole 126 is located at the top corner of the encapsulation housing 1 away from the vibration sensing component 3 and the temperature sensing component 4.

[0099] Optionally, the outlet hole 126 is located directly below any of the first outlet holes 126; alternatively, the outlet hole 126 is located between two sets of first outlet holes 126; specifically, the position of the outlet hole 126 can be selectively set according to actual needs.

[0100] Optionally, the outlet hole 126 can extend vertically downward and communicate with the inlet hole 85 on the intermediate seat 8; alternatively, the outlet hole 126 can be arranged along the axial direction inclined to the adapter seat 2 so that the outlet hole 126 communicates directly with the side wall of the mounting seat 12.

[0101] Please see Figure 1 or Figure 7 In some possible embodiments, an intermediate seat 8 is provided between the encapsulation housing 1 and the adapter 2. The intermediate seat 8 covers the top of the plurality of mounting holes 21, and the intermediate seat 8 is provided with a first clearance hole 81 corresponding to the positioning member 7 and a second clearance hole 82 corresponding to the temperature sensing component 4.

[0102] By setting the intermediate seat 8, the intermediate seat 8 can be placed on top of the adapter seat 2, thereby covering multiple adapter holes. This prevents water from entering the adapter holes and corroding the adapter seat 2 during windy and rainy weather, which is beneficial to improving the sustainable use of the adapter seat 2 and ensuring the protection of the temperature sensing component 4 by the adapter seat 2.

[0103] The positioning member 7 passes downward through the first clearance hole 81 and is screwed into the adapter 2 so that the encapsulation housing 1 presses the intermediate seat 8 downward onto the adapter 2, thereby fixing the position of the intermediate seat 8.

[0104] It should be understood that the intermediate seat 8 can be rotated with the package housing 1 so that the first clearance hole 81 on the intermediate seat 8 is always opposite to the position of the positioning member 7 on the package housing 1; when installed on the adapter seat 2, the first clearance hole 81 can correspond to the mounting hole 21 on the adapter seat 2, thereby realizing the positioning between the positioning member 7, the intermediate seat 8 and the adapter seat 2.

[0105] Specifically, the number of first clearance holes 81 is equal to the number of positioning elements 7, and less than the number of mounting holes 21.

[0106] In addition, the first clearance hole 81 and the second clearance hole 82 on the intermediate seat 8 facilitate the installation of the positioning component 7 and the temperature sensing component 4, and also play a certain supporting and protective role, making the sensor installation more stable, the cooperation between the components more tight, and improving the overall structural strength and stability of the sensor.

[0107] Please see Figure 6 In some embodiments, the intermediate seat 8 is also provided with a flow collection cavity 83 surrounding the temperature sensing component 4, and the flow collection cavity 83 is connected to the flow guiding structure of the encapsulation shell 1.

[0108] By setting up the flow collection cavity 83, the water flow inside the encapsulation shell 1 can be diverted and concentrated, which helps to ensure the sealing performance of the encapsulation shell 1.

[0109] Specifically, an inlet hole 85 is provided at the top of the intermediate seat 8, which is connected to the collection cavity 83; and the inlet hole 85 is connected to the outlet hole 126 at the bottom of the encapsulation housing 1, so as to guide the water flow in the mounting seat 12 into the collection cavity 83.

[0110] Furthermore, the intermediate seat 8 not only directly protects against water flow on the adapter seat 2, but also diverts water flow within the encapsulation housing 1, improving the overall waterproof performance of the vibration temperature sensing component 4. Therefore, the arrangement of the collection cavity 83 further optimizes the drainage path, making collection and drainage smoother. This helps improve the sensor's waterproof performance in humid environments, reduces water erosion of the sensor's interior, and ensures the sensor's normal operation.

[0111] Please see Figure 1 For example, the side wall of the collection cavity 83 is provided with a drain hole that extends to the outside of the intermediate seat 8, and a rubber plug 84 is sealed at the drain hole.

[0112] By setting a drain hole and a rubber plug 84, water can be stored so that the water in the collection chamber 83 can be drained through the drain hole during regular maintenance. The drain hole and rubber plug 84 can not only drain the water in the collection chamber 83, but also prevent external dust and other impurities from entering the sensor, thus playing a good sealing and protection role.

[0113] By setting a rubber plug 84 to protect the collecting cavity 83, rainwater is prevented from flowing back into the collecting cavity 83 from the drain hole when the axis of the adapter 2 is installed on the substrate under test at an angle.

[0114] Preferably, two sets of drainage holes are provided on the intermediate seat 8, and the two sets of drainage holes are symmetrically arranged along the radial direction of the intermediate seat 8, and a set of rubber plugs 84 are provided at each drainage hole; furthermore, the drainage holes extend radially to the outer side wall of the intermediate seat 8, so that when the axis of the adapter 2 is installed at an angle on the substrate to be tested, rainwater can be guided to the outside from one of the drainage holes located on the lower side.

[0115] Please see Figure 1 In some possible embodiments, the temperature sensing component 4 is provided with two sets of annular limiting platforms 41 spaced apart vertically, and a sealing ring 42 is sandwiched between the annular limiting platforms 41, and the sealing ring 42 abuts against the hole wall of the adapter 2.

[0116] It should be noted that the hole wall of adapter 2 refers to the inner wall of the hole inside adapter 2 used to install the temperature sensing component 4.

[0117] It should be understood that by setting the adapter 2, a sealing structure can be easily set between the adapter 2 and the temperature sensing end of the temperature sensing component 4 to prevent water from entering.

[0118] By setting an annular limiting platform 41, the sealing ring 42 is limited to prevent it from sliding up and down on the temperature sensing component 4. By setting the sealing ring 42, the water flow is intercepted a second time, preventing the water flow entering the adapter 2 from affecting the temperature sensing end of the temperature sensing component 4.

[0119] It should be understood that the annular limiting stage 41 plays a role in positioning and fixing the sealing ring 42, ensuring the stability of the sealing effect and improving the reliability of the sensor in humid environments.

[0120] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A vibration temperature compound sensor, characterized by, The package shell (1) has an installation cavity (121) inside; the bottom of the installation cavity (121) is provided with a downwardly penetrating connecting hole (127); the package shell (1) is a five-prism structure formed by longitudinally cutting an angle of a four-prism; The adapter seat (2) is arranged at the bottom of the package shell (1); one end of the adapter seat (2) towards the package shell (1) is provided with a plurality of mounting holes (21), and a plurality of the mounting holes (21) are arranged around the connecting hole (127); the other end of the adapter seat (2) is used for being screwed on a to-be-tested base body; and The induction assembly includes a vibration sensing assembly (3) fixed on the side wall of the installation cavity (121), a temperature sensing assembly (4) limited in the connecting hole (127), and an adapter cable (6) connected with the temperature sensing assembly (4) and the vibration sensing assembly (3) respectively; the temperature sensing assembly (4) extends along the axial direction of the adapter seat (2), and the temperature sensing end penetrates the adapter seat (2) downward and contacts the to-be-tested base body; one end of the adapter cable (6) penetrates the package shell (1) from the side wall of the installation cavity (121); The package shell (1) is provided with a positioning member (7) penetrating therein; after the penetrating end of the adapter cable (6) points to a preset direction, the positioning member (7) is screwed downward in one group of the mounting holes (21). The positioning member (7) is provided with two, and the number of one group of the mounting holes (21) is two; the two positioning members (7) are symmetrically distributed on the two sides of the radial direction of the temperature sensing assembly (4); 2. The vibratory temperature compound sensor of claim 1, wherein, The axial line of the two groups of the positioning members (7) is defined as a separation surface; the adapter cable (6) and the vibration sensing assembly (3) are correspondingly distributed on the two sides of the separation surface. The two positioning members (7) are distributed at two top corners of the five-prism structure and located at the two ends of the side where the cut corner is located; 3. The vibratory temperature compound sensor of claim 2, wherein, The cross section of the installation cavity (121) is a five-edged polygon structure; the installation cavity (121) has a first side wall (1211) arranged in parallel with the side where the cut corner is located, two second side walls (1212) arranged adjacent to and opposite to the first side wall (1211), and two third side walls (1213) connected perpendicularly, and the third side wall (1213) is connected with the adjacent second side wall (1212); The top corner where the positioning member (7) is arranged is defined as a positioning corner, and the two outer side walls of the positioning corner of the package shell (1) and the adjacent one of the second side walls (1212) form a triangular support structure; The first side wall (1211) is provided with the vibration sensing assembly (3), and the vibration sensing assembly (3) extends to one of the second side walls (1212); the adapter cable (6) penetrates the package shell (1) from one of the third side walls (1213). The package shell (1) comprises:

4. The vibratory temperature compound sensor of claim 1, wherein, ​ The mounting seat (12) has a sunken groove arranged downwardly from the top surface, the groove bottom is recessed downwardly and forms the mounting cavity (121), and a stepped surface (122) is formed between the mounting cavity (121) and the sunken groove; The cover plate (11) is arranged on the stepped surface (122) to close the mounting cavity (121); The flow guide structure is arranged on the mounting seat (12) and communicates with the connection between the cover plate (11) and the mounting seat (12) at one end and leads out to the outside of the mounting seat (12) at the other end.

5. The vibratory temperature compound sensor of claim 4, wherein, The flow guide structure comprises: The first flow guide groove (123) is arranged on the stepped surface (122) and extends around the edge of the cover plate (11); A plurality of groups of first flow guide holes (124) are arranged on the stepped surface (122) in a spaced manner; the upper end of the first flow guide hole (124) communicates with the first flow guide groove (123), the lower end extends along the axial direction of the temperature sensing assembly (4), and the water flow is led out to the outside of the mounting seat (12).

6. The vibratory temperature compound sensor of claim 5, wherein, The flow guide structure further comprises: The second flow guide groove (125) is arranged in parallel with the first flow guide groove (123) and is arranged at the bottom of the mounting cavity (121); The leading-out hole (126) communicates with the second flow guide groove (125) at one end and extends to the outside of the mounting seat (12) at the other end; The lower end of the plurality of groups of first flow guide holes (124) communicates with the second flow guide groove (125), so that the first flow guide hole (124) leads the water flow out to the outside of the mounting seat (12) through the second flow guide groove (125) and the leading-out hole (126).

7. The vibratory temperature compound sensor of claim 1, wherein, An intermediate seat (8) is further arranged between the packaging shell (1) and the adapter seat (2), the intermediate seat (8) covers the top of the plurality of mounting holes (21), and the intermediate seat (8) is provided with a first clearance hole (81) corresponding to the positioning member (7) in a top-to-bottom manner and a second clearance hole (82) corresponding to the temperature sensing assembly (4) in a top-to-bottom manner.

8. The vibratory temperature compound sensor of claim 7, wherein, A flow collecting cavity (83) is further arranged in the intermediate seat (8) and surrounds the temperature sensing assembly (4), and the flow collecting cavity (83) communicates with the flow guide structure of the packaging shell (1).

9. The vibratory temperature compound sensor of claim 8, wherein, A drain hole is arranged on the side wall of the flow collecting cavity (83) and penetrates to the outside of the intermediate seat (8), and a rubber plug (84) is arranged at the drain hole.

10. The vibratory temperature compound sensor of claim 1, wherein, Two groups of annular limiting platforms (41) are arranged on the temperature sensing assembly (4) in a top-to-bottom spaced manner, a sealing ring (42) is arranged between the annular limiting platforms (41), and the sealing ring (42) abuts against the hole wall of the adapter seat (2).

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