CN220398626U - Multi-parameter oil sensor - Google Patents

Abstract

The utility model discloses a multi-parameter oil sensor, which comprises a shell, a main controller, a pressure detection module and a multifunctional detection module, wherein the main controller is connected with the shell; the shell is provided with a main cavity, a pressure cavity and a multifunctional cavity which are mutually separated, the pressure cavity is provided with a first liquid through hole communicated with the outside, and the multifunctional cavity is provided with a second liquid through hole communicated with the outside; the main controller is arranged in the main chamber; the pressure detection module is electrically connected with the main controller and is at least partially arranged in the pressure chamber to detect the pressure of oil in the pressure chamber; the multifunctional detection module is electrically connected with the main controller and is at least partially arranged in the multifunctional chamber, and the multifunctional detection module can at least detect trace moisture and water activity of oil liquid in the multifunctional chamber. According to the technical scheme, the multi-parameter oil sensor can be installed to obtain physical parameters such as pressure, trace moisture and water activity of an oil to be measured.

Description

Multi-parameter oil sensor

Technical Field

The utility model relates to the technical field of sensors, in particular to a multi-parameter oil 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. Currently, there are six-in-one sensors on the market for measuring the viscosity, density, temperature, dielectric constant, water content and water activity of the oil to be measured. Additionally, the oil product sensor is also provided with a pressure sensor for detecting the pressure of oil to be detected, when a user needs to detect oil products in an all-around way, the pressure sensor and the six-in-one sensor need to be purchased simultaneously, and the pressure sensor and the six-in-one sensor are sequentially arranged on mechanical equipment, so that the operation process is complicated.

Disclosure of Invention

The utility model mainly aims to provide a multi-parameter oil sensor, and aims to obtain physical parameters such as pressure, trace moisture, water activity and the like of an oil to be measured by installing the multi-parameter oil sensor.

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

the device comprises a shell, a pressure chamber and a pressure chamber, wherein the shell is provided with a main chamber, a pressure chamber and a multifunctional chamber which are mutually separated, the pressure chamber is provided with a first liquid through hole communicated with the outside, and the multifunctional chamber is provided with a second liquid through hole communicated with the outside;

the main controller is arranged in the main chamber;

the pressure detection module is electrically connected with the main controller and is at least partially arranged in the pressure chamber so as to detect the pressure of oil liquid in the pressure chamber; and

the multifunctional detection module is electrically connected with the main controller and is at least partially arranged in the multifunctional cavity, and the multifunctional detection module can at least detect trace moisture and water activity of oil liquid in the multifunctional cavity.

Optionally, the multifunctional detection module comprises a dielectric constant detection module and/or a trace moisture detection module and/or a temperature detection module and/or a resonance detection module, wherein the dielectric constant detection module is used for detecting dielectric constants in oil, the trace moisture detection module is used for detecting trace moisture and water activity in the oil, the temperature detection module is used for detecting temperature in the oil, and the resonance detection module is used for detecting density and viscosity of the oil.

Optionally, the temperature sensing probe of the temperature detection module, the moisture detection probe of the trace moisture detection module, and the dielectric constant probe of the dielectric constant detection module are disposed in the second via hole and configured to have the same structure.

Optionally, the pressure detection module includes a pressure type liquid level sensor and a pressure probe, the pressure probe is plugged at an inner end surface of the first liquid passing hole and separates the first liquid passing hole from the pressure chamber, and the pressure type liquid level sensor is arranged at one side of the pressure probe facing the pressure chamber.

Optionally, a sealing ring groove is formed in the inner end face of the first liquid passing hole, the pressure detection module further comprises a sealing ring embedded in the sealing ring groove, and the pressure probe is abutted to the sealing ring.

Optionally, the height of the first liquid through hole ranges from 2mm to 3mm.

Optionally, the diameter of the first liquid through hole ranges from 4mm to 6mm.

Optionally, the casing includes hexagonal pipe section and the detection pipe section of mutual threaded connection, hexagonal pipe section with the detection pipe section encloses jointly the main cavity room, pressure chamber with multi-functional cavity is located the detection pipe section.

Optionally, the first liquid through hole and the second liquid through hole are both arranged on the end face of the detection pipe section far away from the hexagonal pipe section.

Optionally, a third liquid through hole is formed in the side wall of the detection pipe section, and the third liquid through hole is communicated with the second liquid through hole and the outside.

Optionally, the multi-parameter oil sensor further comprises an aviation plug, and the aviation plug is arranged on the end face, far away from the detection pipe section, of the hexagonal pipe section.

Optionally, the multiparameter oil sensor further comprises an alarm lamp, wherein the alarm lamp is arranged on the end face of the hexagonal pipe section, which is far away from the detection pipe section, and the alarm lamp can emit red light, yellow light and green light at least.

According to the technical scheme, the pressure detection module and the multifunctional detection module are integrated on the sensor, so that the pressure, trace moisture and water activity information of the oil to be detected can be detected simultaneously only by installing the multi-parameter oil sensor, and the detection convenience is improved. Particularly, the pressure detection module and the multifunctional detection module are respectively arranged in the pressure chamber and the multifunctional chamber, so that the two detection modules are not interfered with each other, and the detection work can be well completed.

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 one embodiment of a multiparameter oil sensor of the present utility model, taken below fold line A-A;

fig. 2 is a partial enlarged view at B in fig. 1.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				10	Shell body	30	Pressure detection module
11	Main chamber	31	Pressure type liquid level sensor
				12	Pressure chamber	32	Pressure probe
121	First liquid through hole	33	Sealing ring
				121a	Sealing ring groove	40	Multifunctional detection module
13	Multifunctional chamber	41	Comprehensive probe
				131	Second liquid through hole	411	Column electrode
132	Third liquid through hole	412	Outer ring electrode
				14	Hexagonal pipe section	42	Viscosity probe
15	Detecting pipe section	50	Aviation plug
				20	Main controller	60	Alarm lamp

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 multi-parameter oil sensor.

In an embodiment of the present utility model, as shown in fig. 1 to 2, the multi-parameter oil sensor includes:

the device comprises a shell 10, a pressure chamber 12 and a multifunctional chamber 13, wherein the shell is provided with a main chamber 11, the pressure chamber 12 and the multifunctional chamber 13 which are mutually separated, the pressure chamber 12 is provided with a first liquid through hole 121 communicated with the outside, and the multifunctional chamber 13 is provided with a second liquid through hole 131 communicated with the outside;

a main controller 20 provided in the main chamber 11;

the pressure detection module 30 is electrically connected with the main controller 20 and is at least partially arranged in the pressure chamber 12 to detect the pressure of the oil in the pressure chamber 12; and

the multifunctional detection module 40 is electrically connected with the main controller 20 and is at least partially arranged in the multifunctional chamber 13, and the multifunctional detection module 40 can at least detect trace moisture and water activity of oil liquid in the multifunctional chamber 13.

According to the technical scheme, the pressure detection module 30 and the multifunctional detection module 40 are integrated on one sensor, so that the pressure, trace moisture and water activity information of the oil to be detected can be detected simultaneously only by installing the multi-parameter oil sensor, and the detection convenience is improved. In particular, the pressure detection module 30 and the multifunctional detection module 40 are respectively arranged in the pressure chamber 12 and the multifunctional chamber 13, so that the two detection modules are not interfered with each other, and the detection work can be well completed.

Optionally, the multifunctional detecting module 40 includes a dielectric constant detecting module, and/or a trace moisture detecting module, and/or a temperature detecting module, and/or a resonance detecting module, where the dielectric constant detecting module is used to detect a dielectric constant in the oil, the trace moisture detecting module is used to detect trace moisture and water activity in the oil, the temperature detecting module is used to detect a temperature in the oil, and the resonance detecting module is used to detect a density and a viscosity of the oil. That is, the multifunctional sensing module 40 can simultaneously sense physical parameters such as viscosity, density, temperature, dielectric constant, moisture, and water activity of the oil. In other embodiments, the multifunctional sensing module 40 may also include only a dielectric constant sensing module, and/or a trace moisture sensing module, and/or a temperature sensing module.

Optionally, the temperature sensing probe of the temperature detection module, the moisture detection probe of the trace moisture detection module, and the dielectric constant probe of the dielectric constant detection module are disposed in the second liquid through hole 131 and configured in the same structure. As the measuring modes of trace moisture include a capacitance method and a resistance method, when the capacitance method is adopted for measurement, the capacitance value is related to the dielectric constant, the dielectric constant of the oil liquid is changed due to the increase of the moisture content, and thus the capacitance value is changed. Therefore, the moisture detecting probe of the trace moisture detecting module and the dielectric constant probe of the dielectric constant detecting module can be configured in the same structure, that is, the integrated probe 41 capable of detecting both the dielectric constant and the capacitance. The temperature change can change the dielectric constant, the temperature detection is integrated on the comprehensive probe 41, the temperature-dielectric constant fitting result can show that the temperature-dielectric constant fitting result and the temperature-dielectric constant fitting result has a linear relationship, and the detected dielectric constant is subjected to temperature compensation, so that a more accurate dielectric constant value can be obtained. That is, in the present embodiment, the multifunctional detecting module 40 has two probes, namely, a comprehensive probe 41 and a viscosity probe 42 for detecting the viscosity of the oil on the resonance detecting module. Further, the comprehensive probe 41 includes a core electrode 411 and an outer ring electrode 412, the outer ring electrode 412 is sleeved on the outer side of the core electrode 411, and the outer ring electrode 412 and the core electrode 411 are connected to the detection tube section 15 through insulators (not shown in the figure) and are electrically connected to the main controller 20. In other embodiments, the trace moisture detection module may be tested by a resistance method, the moisture content is measured by using the conductivity of the oil, and the temperature sensing probe of the temperature detection module is separately arranged relative to the probe for detecting the dielectric constant.

Optionally, the pressure detection module 30 includes a pressure level sensor 31 and a pressure probe 32, the pressure probe 32 is blocked at an inner end surface of the first liquid passing hole 121 and is used for separating the first liquid passing hole 121 from the pressure chamber 12, the pressure level sensor 31 is arranged at one side of the pressure probe 32 facing the pressure chamber 12, and the liquid level is calculated by measuring the pressure applied by the oil to the bottom of the pressure level sensor 31. The pressure probe 32 isolates the oil from the pressure type liquid level sensor 31 and simultaneously transmits the pressure from the oil to the pressure type liquid level sensor 31. In other embodiments, the pressure detection module 30 may also include a pressure type liquid level sensor 31 and a sealing membrane.

Optionally, a sealing ring groove 121a is provided on the inner end surface of the first via hole 121, and the pressure detection module 30 further includes a sealing ring 33 embedded in the sealing ring groove 121a, and the pressure probe 32 abuts against the sealing ring 33. The tightness of the pressure chamber 12 is enhanced, and the condition that a gap is formed between the contact surface of the pressure probe 32 and the first liquid passing hole 121 in the compression deformation process, so that the solution seeps into the pressure type liquid level sensor 31 is further prevented. In other embodiments, the sealing ring groove 121a may not be provided, and the sealing ring 33 may be directly disposed on the inner end surface of the first liquid through hole 121.

Alternatively, the height of the first liquid through hole 121 ranges from 2mm to 3mm; the diameter of the first liquid passing hole 121 ranges from 4mm to 6mm. In the range, the oil fluid has weaker circulation, so that the interference of the oil fluid circulation on the oil fluid pressure detection can be reduced, and the detected pressure value is more accurate.

Optionally, the housing 10 includes a hexagonal tube section 14 and a detection tube section 15 that are connected by threads, where the hexagonal tube section 14 and the detection tube section 15 together enclose a main chamber 11, and the pressure chamber 12 and the multifunctional chamber 13 are disposed in the detection tube section 15. The multi-parameter oil sensor is convenient to assemble, and the main controller 20 or the pressure chamber 12 in the main chamber 11, the pressure type liquid level sensor 31 in the multifunctional chamber 13 and the multifunctional probe can be conveniently taken out during maintenance. In other embodiments, the housing 10 enclosing the main chamber 11, the pressure chamber 12 and the multifunctional chamber 13 may be integrally formed.

Optionally, the first liquid through hole 121 and the second liquid through hole 131 are both disposed on an end surface of the detecting pipe section 15 away from the hexagonal pipe section 14. That is, the first through-hole 121 and the second through-hole 131 are both far away from the main controller 20, and when the first through-hole 121 and the second through-hole 131 leak, the oil will later contact the main controller 20. In other embodiments, the first through-liquid hole 121 and the second through-liquid hole 131 may be disposed on a side wall of the detecting pipe section 15.

Optionally, a third liquid through hole 132 is provided on the side wall of the detecting tube section 15, and the third liquid through hole 132 communicates with the second liquid through hole 131 and the outside. The liquid circulation in the multifunctional chamber 13 is enhanced, so that the probe can contact more oil, and the detection result of the multifunctional detection module 40 is more accurate. In other embodiments, the side wall of the detecting pipe section 15 may not be provided with the third liquid through hole 132.

Optionally, the multiparameter oil sensor further comprises an aviation plug 50, wherein the aviation plug 50 is arranged on the end surface of the hexagonal pipe section 14, which is far away from the detection pipe section 15. The aviation plug 50 has stable performance and good sealing performance, and when the multi-parameter oil sensor is carelessly dropped into oil, the oil cannot permeate into an aviation connector and damage electrical connectivity. Meanwhile, the aviation plug 50 is far away from the oil, so that the oil is further prevented from entering the aviation plug 50. In other embodiments, the aviation plug 50 may be provided on the side wall of the hexagonal pipe section 14.

Optionally, the multi-parameter oil sensor further includes an alarm lamp 60, where the alarm lamp 60 is disposed on an end surface of the hexagonal pipe section 14 far away from the detecting pipe section 15, and the alarm lamp 60 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 of the physical parameters of the oil occurs or adjacent warning values, and the red light indicates that the physical parameters of the oil are in a warning range and the oil needs to be replaced. In other embodiments, the alarm lamp 60 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 multiparameter oil sensor comprising:

the device comprises a shell, a pressure chamber and a pressure chamber, wherein the shell is provided with a main chamber, a pressure chamber and a multifunctional chamber which are mutually separated, the pressure chamber is provided with a first liquid through hole communicated with the outside, and the multifunctional chamber is provided with a second liquid through hole communicated with the outside;

the main controller is arranged in the main chamber;

the pressure detection module is electrically connected with the main controller and is at least partially arranged in the pressure chamber so as to detect the pressure of oil liquid in the pressure chamber; and

the multifunctional detection module is electrically connected with the main controller and is at least partially arranged in the multifunctional cavity, and the multifunctional detection module can at least detect trace moisture and water activity of oil liquid in the multifunctional cavity.

2. The multi-parameter oil sensor of claim 1, wherein the multi-functional detection module comprises a dielectric constant detection module for detecting a dielectric constant in the oil, and/or a trace moisture detection module for detecting trace moisture and water activity in the oil, and/or a temperature detection module for detecting a temperature in the oil, and/or a resonance detection module for detecting a density and a viscosity of the oil.

3. The multiparameter oil sensor according to claim 2, wherein the temperature sensing probe of the temperature detection module, the moisture detection probe of the trace moisture detection module, and the dielectric constant probe of the dielectric constant detection module are provided in the second liquid passage hole and are configured in the same structure.

4. The multi-parameter oil sensor of claim 1, wherein the pressure detection module comprises a pressure type liquid level sensor and a pressure probe, the pressure probe is plugged at the inner end surface of the first liquid passing hole and is used for separating the first liquid passing hole from the pressure chamber, and the pressure type liquid level sensor is arranged at one side of the pressure probe facing the pressure chamber.

5. The multi-parameter oil sensor of claim 4, wherein a sealing ring groove is formed in an inner end surface of the first liquid passing hole, the pressure detection module further comprises a sealing ring embedded in the sealing ring groove, and the pressure probe abuts against the sealing ring.

6. The multi-parameter oil sensor of claim 1, wherein the height of the first via is in the range of 2mm to 3mm; and/or the diameter of the first liquid through hole is in the range of 4mm to 6mm.

7. The multi-parameter oil sensor of claim 1, wherein the housing comprises a hexagonal tube section and a detection tube section that are threadably connected to each other, the hexagonal tube section and the detection tube section together enclosing the main chamber, the pressure chamber and the multi-function chamber being disposed in the detection tube section.

8. The multi-parameter oil sensor of claim 7, wherein the first fluid passage and the second fluid passage are both disposed on an end surface of the detection tube segment remote from the hexagonal tube segment.

9. The multi-parameter oil sensor of claim 8, wherein a third fluid via is provided on a sidewall of the test tube section, the third fluid via communicating the second fluid via with the outside.

10. The multi-parameter oil sensor of claim 7, further comprising an aviation plug disposed on an end face of the hexagonal pipe section remote from the detection pipe section;

and/or, the multiparameter oil sensor further comprises an alarm lamp, wherein the alarm lamp is arranged on the end face of the hexagonal pipe section, which is far away from the detection pipe section, and the alarm lamp can at least emit red light, yellow light and green light.