CN220399439U - Multifunctional oil sensor - Google Patents

Abstract

The utility model discloses a multifunctional oil sensor, which comprises a shell, a main controller, a dielectric constant detection module and a multifunctional detection module, wherein the main controller is connected with the shell; the shell is provided with a main cavity and an induction through hole which are distributed along the up-down direction in sequence and are mutually separated; the main controller is arranged in the main chamber; the dielectric constant detection module is electrically connected with the main controller and is at least partially arranged in the induction through hole so as to detect the dielectric constant of oil liquid in the induction through hole; the multifunctional detection module is electrically connected with the main controller and is at least partially arranged in the induction through hole, and the multifunctional detection module can at least detect trace moisture, temperature and viscosity of oil liquid in the induction through hole. According to the technical scheme, the multifunctional oil sensor can be installed to obtain the physical parameters such as dielectric constant, temperature, viscosity, trace moisture and the like of the oil to be measured.

Description

Multifunctional oil sensor

Technical Field

The utility model relates to the technical field of sensors, in particular to a multifunctional oil product sensor.

Background

The oil is called as industrial blood, and plays important roles in mechanical equipment such as power lifting, lubrication, sealing, corrosion prevention, cooling and the like. It is counted that more than 70% of the failures of the mechanical equipment are caused by abrasion, and oil lubrication is often adopted in order to reduce the abrasion and prolong the service life of parts. The state of the oil in the mechanical equipment can directly reflect the abrasion state of the mechanical equipment, so that the monitoring of the oil in the mechanical equipment is particularly important. At present, the physical and chemical index detection of oil products is mainly performed in an off-line laboratory. Laboratory detection has the advantage of precision, but has a gap from the oil condition on site, and real-time monitoring cannot be achieved. However, the existing oil product characteristic online detection product has single functionality, and when a user needs to detect oil products in an all-around way, the user needs to purchase a plurality of single-function sensors simultaneously to finish, so that the defects of a plurality of purchase channels, system integration, various oil way interfaces, non-uniform data transmission interfaces, increased debugging work and installation work, increased maintenance workload, increased purchase total price and the like appear.

Disclosure of Invention

The utility model mainly aims to provide a multifunctional oil sensor, and aims to obtain physical parameters such as dielectric constant, temperature, viscosity, trace moisture and the like of an oil to be measured by installing the multifunctional oil sensor.

In order to achieve the above object, the multifunctional oil sensor provided by the present utility model comprises:

the shell is provided with a main cavity and an induction through hole which are distributed along the up-down direction in sequence and are mutually separated;

the main controller is arranged in the main chamber;

the dielectric constant detection module is electrically connected with the main controller and is at least partially arranged in the induction through hole so as to detect the dielectric constant of oil liquid positioned in the induction through hole; and

the multifunctional detection module is electrically connected with the main controller and is at least partially arranged in the induction through hole, and the multifunctional detection module can at least detect trace moisture, temperature and viscosity of oil liquid in the induction through hole.

Optionally, the dielectric constant detection module includes a dielectric constant detection probe including an inner electrode and an outer electrode disposed around the inner electrode.

Optionally, the shape configuration of inner electrode is cylindric, just the centre of a circle department fretwork setting of inner electrode, multi-functional detection module includes trace moisture detection probe, temperature probe and viscosity detection probe, trace moisture detection probe with the dielectric constant detection probe is configured to same structure, temperature probe with the viscosity detection probe all locates the centre of a circle department of inner electrode.

Optionally, the outer electrode is disposed on an outer end wall of the induction through hole, the inner electrode and the outer electrode are both oriented to one side of the induction through hole away from the main controller, one end of the inner electrode away from the main controller is close to one end of the outer electrode away from the main controller, and the induction through hole, the inner electrode and the outer electrode are coaxially disposed.

Optionally, a first flow hole is formed in the side wall of the outer electrode, a second flow hole is formed in the side wall of the inner electrode, a plurality of first flow holes are formed in the side wall of the inner electrode and are circumferentially distributed at intervals on the outer electrode, and a plurality of first flow holes are formed in the side wall of the outer electrode and are circumferentially distributed at intervals on the inner electrode.

Optionally, the first flow bore axis intersects the second flow bore axis.

Optionally, the hole bottom wall of induction through-hole is equipped with the connecting pipe that extends along upper and lower direction, the master controller with connect through first wire between the temperature probe, the master controller with connect through the second wire between the viscosity test probe, the connecting pipe parcel first wire with the second wire, the connecting pipe makes temperature probe with the viscosity test probe with the second flow hole sets up relatively.

Optionally, be equipped with the butt step on the inside wall of response through-hole, the step face orientation of butt step the master controller sets up, be equipped with support piece in the response through-hole, support piece for the butt step is equipped with the spacing ring is protruding, support piece keeps away from the one end of master controller extends to the outer terminal surface of response through-hole, the inner electrode is located support piece is away from the one end of master controller, multifunctional oil sensor still includes the circuit board, the circuit board with support piece's inner end butt is used for separating response through-hole with main cavity, the master controller in the circuit board electricity is connected, the circuit board at least with temperature probe with viscosity detection probe electricity is connected.

Optionally, the multifunctional oil product sensor further comprises a sealing ring and an adjusting part, wherein the sealing ring is clamped between the circuit board and the inner end surface of the supporting piece, the adjusting part is movably arranged on the shell and can adjust the installation position along the direction close to or far away from the induction through hole, and the adjusting part is abutted against the circuit board.

Optionally, the adjusting part includes the external screw thread post, the casing be relative with the external screw thread post is equipped with the screw hole, the external screw thread post the screw hole with support piece coaxial line sets up, the external screw thread post is in threaded hole internal rotation, and support the push away the circuit board is along being close to or keep away from support piece's direction removes, the axle center department fretwork of external screw thread post, and the cross section shape configuration of fretwork is the polygon.

According to the technical scheme, the dielectric constant detection module and the multifunctional detection module are integrated on the sensor, so that the information such as the dielectric constant, the temperature, the viscosity and the trace moisture of the oil to be detected can be detected simultaneously only by installing the multifunctional oil sensor, and the detection convenience is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a partial cross-sectional view of an embodiment of the multi-functional oil sensor of the present utility model, taken below fold line A-A.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides a multifunctional oil sensor.

In the embodiment of the utility model, as shown in fig. 1, the multifunctional oil sensor comprises:

a housing 10 provided with a main chamber 11 and a sensing through hole 12 which are sequentially distributed in the up-down direction and are separated from each other;

a main controller 20 provided in the main chamber 11;

the dielectric constant detection module 30 is electrically connected with the main controller 20 and is at least partially arranged in the induction through hole 12 to detect the dielectric constant of the oil liquid positioned in the induction through hole 12; and

the multifunctional detection module 40 is electrically connected with the main controller 20 and is at least partially arranged in the induction through hole 12, and the multifunctional detection module 40 can at least detect trace moisture, temperature and viscosity of oil liquid in the induction through hole 12.

According to the technical scheme, the dielectric constant detection module 30 and the multifunctional detection module 40 are integrated on one sensor, so that the information such as the dielectric constant, the temperature, the viscosity and the trace moisture of the oil to be detected can be detected at the same time only by installing the multifunctional oil sensor, and the detection convenience is improved.

Alternatively, the dielectric constant detection module 30 includes a dielectric constant detection probe 3131, the dielectric constant detection probe 31 including an inner electrode 311 and an outer electrode 312, the outer electrode 312 being disposed around the inner electrode 311. By detecting the oil between the inner electrode 311 and the outer electrode 312, the dielectric constant of the oil in the sensing through hole 12 is further detected. In other embodiments, the inner electrode 311 and the outer electrode 312 may be in a straight plate shape and disposed opposite to each other.

Optionally, the shape of the inner electrode 311 is configured to be cylindrical, and the center of the inner electrode 311 is hollowed, the multifunctional detection module 40 includes a trace moisture detection probe, a temperature probe 41 and a viscosity detection probe 42, the trace moisture detection probe and the dielectric constant detection probe 3131 are configured to be the same structure, and the temperature probe 41 and the viscosity detection probe 42 are both disposed at the center of the inner electrode 311. Since the trace moisture content in the oil can be measured by a capacitance method, when the moisture content in the oil increases, the dielectric constant of the oil changes, thereby causing the capacitance value to change. Therefore, the moisture detecting probe of the trace moisture detecting module and the dielectric constant detecting probe 3131 of the dielectric constant detecting module 30 can be configured to be the same structure. The temperature probe 41 is arranged at the hollow part of the center of the inner electrode 311, so that the temperature change of the oil liquid with the dielectric constant being measured can be detected in real time, the temperature change and the dielectric constant fitting result can be seen to have a linear relation, the detected dielectric constant is subjected to temperature compensation, and the values of the dielectric constant and the trace moisture can be obtained more accurately. The viscosity detection probe 42 is arranged at the hollow center of the inner electrode 311, which is helpful to expand the diameter of the outer electrode 312 in the induction through hole 12, so that more oil to be detected is arranged between the outer electrode 312 and the inner electrode 311. And the viscosity detection probe 42 and the temperature probe 41 can avoid the strong electric field region between the inner electrode 311 and the outer electrode 312, and the detection interference of the electric field intensity to the viscosity detection probe 42 and the temperature probe 41 can be reduced. In other embodiments, a viscosity detecting probe 42 and a temperature probe 41 may be provided in the gap between the external electrode 312 and the sidewall of the sensing through hole 12.

Optionally, the external electrode 312 is disposed on an outer end wall of the sensing through hole 12, the internal electrode 311 and the external electrode 312 both extend toward one side of the sensing through hole 12 away from the main controller 20, one end of the internal electrode 311 away from the main controller 20 is close to one end of the external electrode 312 away from the main controller 20, and the sensing through hole 12, the internal electrode 311 and the external electrode 312 are coaxially disposed. That is, the diameter of the outer electrode 312 is equal to the diameter of the sensing through hole 12, which helps to increase the volume of the oil to be measured between the outer electrode 312 and the inner electrode 311. In other embodiments, the inner electrode 311 and the outer electrode 312 may be coaxially disposed, and the sensing through hole 12 and the inner electrode 311 may not be coaxially disposed.

Alternatively, the side wall of the outer electrode 312 is provided with a first through hole 312a, the side wall of the inner electrode 311 is provided with a second through hole 311a, the first through holes 312a are provided in plurality and are distributed at intervals in the circumferential direction of the outer electrode 312, and the first through holes are provided in plurality and are distributed at intervals in the circumferential direction of the inner electrode 311. The connectivity of the hollow part of the center of the inner electrode 311 is enhanced, so that the temperature probe 41 and the viscosity detection probe 42 can be contacted with new oil to be detected, and the detection result is more accurate. In other embodiments, the first and second flow holes 312a and 311a may not be provided.

Alternatively, the first flow hole 312a axis intersects the second flow hole 311a axis. That is, the first flow holes 312a and the second flow holes 311a are staggered, so that the flow property of the oil in the gap between the outer electrode 312 and the inner electrode 311 is enhanced, the outer electrode 312 and the inner electrode 311 can be contacted with the new oil to be detected, and the detection result is more accurate. In other embodiments, the first through hole 312a and the second through hole 311a may be disposed opposite to each other, that is, the axis of the first through hole 312a is parallel to the axis of the second through hole 311a.

Optionally, the bottom wall of the sensing through hole 12 is provided with a connecting pipe 121 extending along the up-down direction, the main controller 20 is connected with the temperature probe 41 through a first wire, the main controller 20 is connected with the viscosity detection probe 42 through a second wire, the connecting pipe 121 wraps the first wire and the second wire, and the temperature probe 41 and the viscosity detection probe 42 are arranged opposite to the second through hole through the connecting pipe 121. The connection pipe 121 can prevent the first and second wires from leaking electricity while fixing the temperature probe 41 and the viscosity detection probe 42 at positions facing the second flow hole 311a, and avoid the temperature probe 41 and the viscosity detection probe 42 from being short-circuited. In other embodiments, the temperature probe 41 and the viscosity detection probe 42 may be provided on the bottom wall of the sensing through hole 12.

Further alternatively, the connection pipe 121 is provided with two wires including a first wire and a second wire, respectively. Generally, a certain distance is provided between the temperature probe 41 and the viscosity detection probe 42, so that the material consumption of the connecting pipe 121 can be saved and the production cost can be reduced when two connecting pipes 121 are provided. In other embodiments, it is also possible that the connection tube 121 is provided with one, and wraps both the first wire and the second wire.

Optionally, an abutment step 122 is disposed on an inner sidewall of the sensing through hole 12, a step surface of the abutment step 122 is disposed towards the main controller 20, a supporting member 13 is disposed in the sensing through hole 12, the supporting member 13 is provided with a limiting ring protrusion 131 corresponding to the abutment step 122, an external electrode 312 is disposed on an outer end surface of the sensing through hole 12, an internal electrode 311 is disposed on the outer end surface of the supporting member 13, the multifunctional oil sensor further comprises a circuit board 50, the circuit board 50 is abutted to an inner end surface of the supporting member 13 and is used for separating the sensing through hole 12 and the main chamber 11, the main controller 20 is electrically connected with the circuit board 50, and the circuit board 50 is electrically connected with at least the temperature probe 41 and the viscosity detection probe 42. That is, the inner electrode 311 is not disposed on the bottom wall of the sensing through hole 12, which contributes to reduction in electrode material required for producing the inner electrode 311 and reduction in production cost. In this embodiment, after the trace moisture detection probe and the viscosity detection probe 42 upload the data to the circuit board 50, the circuit board 50 gathers the data and transmits the data to the main controller 20, and in particular, the circuit board 50 and the main controller 20 are connected by the third wire 51. In other embodiments, the support 13 may not be provided, and the inner electrode 311 may be provided with a stopper protrusion 131 with respect to the abutment step 122.

Optionally, the multifunctional oil sensor further comprises a sealing ring 60 and an adjusting portion 70, the sealing ring 60 is clamped between the circuit board 50 and the inner end surface of the supporting member 13, the adjusting portion 70 is movably arranged on the housing 10, the mounting position can be adjusted along the direction approaching or separating from the sensing through hole 12, and the adjusting portion 70 abuts against the circuit board 50. The seal ring 60 between the circuit board 50 and the inner end surface of the support member 13 is pressed by the adjusting part 70, so that the seal ring 60 is elastically deformed, the seal ring 60 seals the gap between the circuit board 50 and the inner end surface of the support member 13, and oil is effectively prevented from entering the main chamber 11, so that effective sealing is realized. When a user unpacks the multifunctional oil product sensor and needs to restore the sealing structure between the circuit board 50 and the inner end surface of the supporting member 13, the effective sealing between the circuit board 50 and the inner end surface of the supporting member 13 can be realized by controlling the installation position of the adjusting portion 70 on the housing 10, that is, even if the adjusting portion 70 is in a position capable of pressing the circuit board 50 on the sealing ring 60. In other embodiments, it is also possible that the circuit board 50 and the inner end surface of the support 13 are sealed by a sealant.

Optionally, the adjusting portion 70 includes an external threaded column 71, a threaded hole 14 is disposed in the housing 10 opposite to the external threaded column 71, the threaded hole 14 and the supporting member 13 are coaxially disposed, the external threaded column 71 rotates in the threaded hole 14 and pushes against the circuit board to move along a direction approaching or departing from the supporting member 13, the axis of the external threaded column 71 is hollowed, and the hollowed cross section is configured as a polygon. The polygonal screwdriver can be inserted into the hollow part of the external thread column 71, so that the external thread column 71 can be screwed conveniently, the external thread column 71 can move in the threaded hole 14 by screwing the external thread column 71, and the circuit board 50 is pushed to press the sealing ring 60. The screw structure is easy to machine and form and is low in cost, so that the movement of the adjusting portion 70 in the housing 10 is realized by adopting the screw structure. In other embodiments, the movement of the adjusting portion 70 in the housing 10 may also be achieved by the adjusting portion 70 through the engagement of a snap and a slot.

Optionally, the multifunctional oil sensor further comprises an aviation plug 80, the aviation plug 80 is arranged on the end face, far away from the induction through hole 12, of the shell 10, the aviation plug 80 is electrically connected with the main controller 20, and the aviation plug 80 can send oil measurement information stored in the main controller 20 to an upper computer for processing. The aviation plug 80 has stable performance and good sealing performance, and when the multifunctional oil sensor is carelessly dropped into oil, the oil cannot permeate into an aviation connector and damage electrical connectivity. Meanwhile, the aviation plug 80 is far away from the oil, so that the oil is further prevented from entering the aviation plug 80. In other embodiments, the aerial plug 80 may also be provided on a side wall of the housing 10.

Optionally, the multifunctional oil sensor further includes an alarm lamp 90, where the alarm lamp 90 is disposed on an end surface of the housing 10 far away from the sensing through hole 12, and the alarm lamp 90 can emit at least red light, yellow light and green light. The green light indicates that the oil is normal, the yellow light indicates that unexpected large variation or adjacent warning value appears in the measurement information of the oil, and the red light indicates that the physical parameter of the oil is in the warning range and the oil needs to be replaced. In other embodiments, the alarm lamp 90 can flash light, and the number of times of flashing light is used for early warning.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. A multifunctional oil sensor, comprising:

the shell is provided with a main cavity and an induction through hole which are distributed along the up-down direction in sequence and are mutually separated;

the main controller is arranged in the main chamber;

the dielectric constant detection module is electrically connected with the main controller and is at least partially arranged in the induction through hole so as to detect the dielectric constant of oil liquid positioned in the induction through hole; and

the multifunctional detection module is electrically connected with the main controller and is at least partially arranged in the induction through hole, and the multifunctional detection module can at least detect trace moisture, temperature and viscosity of oil liquid in the induction through hole.

2. The multifunctional oil sensor of claim 1, wherein the dielectric constant detection module comprises a dielectric constant detection probe comprising an inner electrode and an outer electrode, the outer electrode disposed around the inner electrode.

3. The multifunctional oil sensor according to claim 2, wherein the shape of the inner electrode is configured to be cylindrical, the center of the inner electrode is hollowed, the multifunctional detection module comprises a trace moisture detection probe, a temperature probe and a viscosity detection probe, the trace moisture detection probe and the dielectric constant detection probe are configured to be of the same structure, and the temperature probe and the viscosity detection probe are both arranged at the center of the inner electrode.

4. The multifunctional oil sensor according to claim 3, wherein the outer electrode is arranged on the outer end wall of the induction through hole, the inner electrode and the outer electrode are both extended towards one side of the induction through hole away from the main controller, one end of the inner electrode away from the main controller is close to one end of the outer electrode away from the main controller, and the induction through hole, the inner electrode and the outer electrode are coaxially arranged.

5. The multifunctional oil sensor according to claim 3, wherein the side wall of the outer electrode is provided with a first flow hole, the side wall of the inner electrode is provided with a second flow hole, the first flow holes are provided in plurality and are distributed at intervals in the circumferential direction of the outer electrode, and the first flow holes are provided in plurality and are distributed at intervals in the circumferential direction of the inner electrode.

6. The multi-function oil sensor of claim 5 wherein the first flow bore axis intersects the second flow bore axis.

7. The multifunctional oil sensor according to claim 6, wherein a connecting pipe extending in the vertical direction is provided at the bottom wall of the sensing through hole, the main controller is connected with the temperature probe through a first wire, the main controller is connected with the viscosity detection probe through a second wire, the connecting pipe wraps the first wire and the second wire, and the connecting pipe enables the temperature probe and the viscosity detection probe to be disposed opposite to the second through hole.

8. The multifunctional oil sensor according to claim 3, wherein an abutting step is arranged on the inner side wall of the sensing through hole, the step of the abutting step faces the main controller, a supporting piece is arranged in the sensing through hole, the supporting piece is provided with a limiting ring protrusion relative to the abutting step, one end of the supporting piece, which is far away from the main controller, extends to the outer end face of the sensing through hole, the inner electrode is arranged at one end of the supporting piece, which is far away from the main controller, the multifunctional oil sensor further comprises a circuit board, the circuit board is abutted with the inner end face of the supporting piece and used for separating the sensing through hole from the main chamber, the main controller is electrically connected with the circuit board, and the circuit board is electrically connected with at least the temperature probe and the viscosity detection probe.

9. The multifunctional oil sensor of claim 8, further comprising a sealing ring and an adjusting part, wherein the sealing ring is clamped between the circuit board and the inner end surface of the supporting member, the adjusting part is movably arranged on the shell and can adjust the mounting position along the direction approaching or separating from the sensing through hole, and the adjusting part is abutted against the circuit board.

10. The multifunctional oil sensor according to claim 9, wherein the adjusting part comprises an external thread column, a threaded hole is formed in the shell relatively to the external thread column, the threaded hole and the supporting piece are coaxially arranged, the external thread column rotates in the threaded hole and pushes the circuit board to move in a direction approaching or separating from the supporting piece, the axis of the external thread column is hollowed, and the hollowed cross section is configured to be polygonal.