Oil acid value detection sensor
By optimizing the oil flow path through a multi-channel design and temperature detection components, the instability and accuracy issues of existing oil acid value detection sensors have been resolved, achieving higher detection accuracy and environmental adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-03-03
AI Technical Summary
Existing oil acid value detection sensors suffer from unstable measurement results due to their single-channel design, making it difficult to cope with changes in oil flow rate and environment. They are also susceptible to interference from impurities and air bubbles, which affects detection accuracy.
It adopts a multi-channel design, including a main channel, a detection channel and a diversion channel. By optimizing the oil flow path and flow rate, and combining temperature detection components and optical detection components, it ensures uniform oil distribution and accurate reception of optical signals.
It improves the accuracy and stability of oil acid value detection, reduces measurement errors, and enhances adaptability to environmental changes.
Smart Images
Figure CN223966464U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of oil detection technology, and in particular to an oil acid value detection sensor. Background Technology
[0002] Acidic substances in oil can increase its conductivity, reduce its insulation performance, and cause solid insulation materials to age, shortening the lifespan of transformers. Therefore, an oil acid value sensor is needed to detect the acid value of oil in real time. Existing oil acid value sensors typically employ a single-channel design, which has the advantages of simple structure and ease of implementation. However, because there is only one channel, the oil cannot be uniformly distributed when passing through the sensor, potentially leading to unstable measurement results. Furthermore, impurities such as particles and bubbles in the oil easily accumulate, interfering with sensor detection and affecting accuracy. Simultaneously, the single-channel design cannot precisely adjust the oil flow rate, resulting in slow response time, poor sensitivity, and difficulty in handling environmental changes such as oil viscosity and temperature. Therefore, improving the accuracy of acid value detection is a pressing technical problem that needs to be solved. Utility Model Content
[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes an oil acid value detection sensor that can improve the accuracy of acid value detection.
[0004] To achieve the above objectives, this application adopts the following technical solution:
[0005] In a first aspect, this application provides an oil acid value detection sensor, comprising:
[0006] A base that connects to external devices;
[0007] The housing is disposed on the surface of the base. The housing contains a main channel, a detection channel, and a diversion channel. The main channel and the detection channel are flush. There are two diversion channels, and the two ends of each diversion channel are connected to the main channel and the detection channel, respectively. The cross-sectional area of the main channel is larger than that of the diversion channel, and the cross-sectional area of each diversion channel is larger than that of the detection channel.
[0008] An acid value detection component includes a light-emitting module, a filter film, and a light-sensing module. The light-emitting module is disposed on the surface of the housing and located on one side of the detection channel. The light-sensing module is disposed on the surface of the housing and located on the other side of the detection channel and aligned with the light source. The filter film is disposed between the detection channel and the light-sensing module. The light-sensing module is used to receive the light signal emitted by the light-emitting module and passing through the detection channel.
[0009] The oil acid value detection sensor according to the first aspect of this application has at least the following beneficial effects: the main channel with a larger cross-sectional area allows the oil to flow stably, while the branch channel with a medium cross-sectional area can reasonably adjust the oil flow rate, allowing the oil to smoothly enter the detection channel. The detection channel with a smaller cross-sectional area can increase the oil flow rate, reduce oil retention, and promote uniform oil flow, helping to reduce the interference of impurities and bubbles in the oil on the light signal emitted by the light source, enabling the photosensitive module to receive a more accurate light signal, thereby improving detection accuracy. The branch channels, main channel, and detection channel with different cross-sectional areas are interconnected, which can optimize the path and flow rate of the oil through the detection area, allowing the oil to be evenly distributed in the detection channel and reducing measurement errors that may be caused by uneven flow. Compared with the prior art, the embodiments of this application improve the accuracy of acid value detection by optimizing the flow path and flow rate of the oil. Therefore, the embodiments of this application solve the technical problem of how to improve detection accuracy.
[0010] According to some embodiments of this application, the oil acid value detection sensor further includes a temperature detection component, which is connected to the surface of the housing and located on one side of the detection channel, and is used to detect the oil temperature.
[0011] According to some embodiments of this application, the temperature detection assembly includes a temperature sensor and a first fixing base. The temperature sensor is disposed on the surface of the first fixing base, and the first fixing base is connected to the surface of the housing and located on one side of the detection channel.
[0012] According to some embodiments of this application, the first fixing seat is provided with a first fixing hole, and the surface of the housing is provided with a second fixing hole that matches the first fixing hole. External fasteners can pass through the first fixing hole and the second fixing hole in sequence to fix the first fixing seat and the surface of the housing in a fixed connection.
[0013] According to some embodiments of this application, the light-emitting module includes a second fixing base and a light source, the light source being disposed on the surface of the second fixing base, the second fixing base being connected to the surface of the housing and located on one side of the detection channel.
[0014] According to some embodiments of this application, the photosensitive module includes a third mounting base and a photosensitive sensor. The photosensitive sensor is disposed on the surface of the third mounting base. The third mounting base is connected to the surface of the housing and is located on the other side of the detection channel and aligned with the second mounting base.
[0015] According to some embodiments of this application, the second fixing seat is provided with a third fixing hole, the third fixing seat is provided with a fourth fixing hole, and the surface of the housing is provided with a fifth fixing hole that matches the third fixing hole and the fourth fixing hole. External fasteners can pass through the third fixing hole, the fourth fixing hole and the fifth fixing hole in sequence to fix the second fixing seat and the third fixing seat to the surface of the housing.
[0016] According to some embodiments of this application, the base is detachably connected to an external device.
[0017] According to some embodiments of this application, the housing further includes an expansion interface that communicates with the main channel and is located on the side of the main channel away from the branch channel. The number of expansion interfaces matches the number of branch channels.
[0018] According to some embodiments of this application, the oil acid value detection sensor further includes a display component connected to the side of the housing away from the base.
[0019] The present application will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the oil acid value detection sensor of this application;
[0021] Figure 2 This is a cross-sectional view of one embodiment of the housing of this application;
[0022] Figure 3 This is a schematic diagram of the structure of one embodiment of the housing of this application from one angle;
[0023] Figure 4 This is a structural schematic diagram from another angle of one embodiment of the housing of this application.
[0024] Figure label:
[0025] Base 100
[0026] Housing 200, main channel 210, detection channel 220, diversion channel 230, expansion interface 240
[0027] Acid value detection component 300, light-emitting module 310, second fixing base 311, third fixing hole 312, photosensing module 320, third fixing base 321, fourth fixing hole 322.
[0028] Temperature detection component 400, first fixing base 410, first fixing hole 411
[0029] Display component 500. Detailed Implementation
[0030] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.
[0031] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, and right, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0032] In the description of this application, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0033] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.
[0034] The embodiments of this application will be further described below with reference to the accompanying drawings.
[0035] Reference Figure 1 , 2As shown in Figures 3 and 4, the oil acid value detection sensor includes a base 100, a housing 200, and an acid value detection component 300. The base 100 is connected to external equipment. The housing 200 is disposed on the surface of the base 100. Inside the housing 200, there is a main channel 210, a detection channel 220, and a branch channel 230. The main channel 210 and the detection channel 220 are flush. There are two branch channels 230, with each end connected to the main channel 210 and the detection channel 220 respectively. The cross-sectional area of the main channel 210 is larger than that of the branch channel 230, and the cross-sectional area of the branch channel 230 is larger than that of the detection channel 220. The cross-sectional area; the acid value detection component 300 includes a light-emitting module 310, a filter film and a light-sensing module 320. The light-emitting module 310 is disposed on the surface of the housing 200 and located on one side of the detection channel 220. The light-sensing module 320 is disposed on the surface of the housing 200 and located on the other side of the detection channel 220 and aligned with the light source. The filter film is disposed between the detection channel 220 and the light-sensing module 320. The light-sensing module 320 is used to receive the light signal emitted by the light-emitting module 310 and passing through the detection channel 220.
[0036] In the above embodiments, the main channel 210 with a larger cross-sectional area allows for stable oil flow, while the branch channel 230 with a medium cross-sectional area can reasonably regulate the oil flow rate, enabling the oil to smoothly enter the detection channel 220. The detection channel 220 with a smaller cross-sectional area can increase the oil flow rate, reduce oil stagnation, and promote uniform oil flow, helping to reduce the interference of impurities and air bubbles in the oil on the light signal emitted by the light source, allowing the photosensitive module 320 to receive a more accurate light signal, thereby improving detection accuracy. The branch channel 230, main channel 210, and detection channel 220 with different cross-sectional areas are interconnected, which can optimize the path and flow rate of the oil through the detection area, enabling the oil to be evenly distributed within the detection channel 220 and reducing measurement errors that may be caused by uneven flow. Compared with the prior art, this application improves the accuracy of acid value detection by optimizing the flow path and flow rate of the oil.
[0037] For example, such as Figure 1 , 2 As shown in Figures 3 and 4, the oil flows into the main channel 210 from the end near the lower end of the housing 200 and flows out from the end near the upper end of the housing 200. As the oil flows through the main channel 210, some oil flows into the detection channel 220 through the branch channel 230 near the lower end of the housing 200, and then flows out of the detection channel 220 through the branch channel 230 near the upper end of the housing 200, returning to the main channel 210. The light signal emitted by the light-emitting module 310 passes sequentially through the oil in the detection channel 220 and the filter membrane before reaching the photosensor module 320. The photosensor module 320 processes and analyzes the light signal to ultimately determine the acid value of the oil.
[0038] Understandably, referring to Figure 3 As shown, the oil acid value detection sensor also includes a temperature detection component 400. The temperature detection component 400 is connected to the surface of the housing 200 and located on one side of the detection channel 220. The temperature detection component 400 is used to detect the oil temperature. The temperature detection component 400 can monitor the temperature change of the oil in real time and compensate and correct the acid value detection results. There is a certain correlation between temperature and oil acid value; temperature changes may affect the oil acid value reading. Therefore, the temperature detection component 400 can effectively provide temperature data to ensure the accuracy and stability of the acid value measurement results under different temperature environments.
[0039] Understandably, referring to Figure 3 As shown, the temperature detection assembly 400 includes a temperature sensor (not shown) and a first mounting base 410. The temperature sensor is disposed on the surface of the first mounting base 410, which is connected to the surface of the housing 200 and located on one side of the detection channel 220. By mounting the temperature sensor on the surface of the first mounting base 410 and fixing the first mounting base 410 to the surface of the housing 200, precise alignment between the temperature sensor and the area through which the oil flows in the detection channel 220 is achieved, thereby improving the stability of temperature detection. In some embodiments, the temperature sensor may be a digital temperature sensor, a semiconductor temperature sensor, etc.
[0040] Understandably, referring to Figure 3 As shown, the first fixing base 410 has a first fixing hole 411, and the surface of the housing 200 has a second fixing hole (not shown in the figure) that matches the first fixing hole 411. External fasteners can pass through the first fixing hole 411 and the second fixing hole in sequence to fix the first fixing base 410 and the surface of the housing 200. By providing the first fixing hole 411 and the second fixing hole on the surfaces of the first fixing base 410 and the housing 200 respectively, and connecting them with external fasteners, a stable installation of the temperature sensor can be achieved, reducing the risk of the temperature sensor loosening or shifting due to vibration or external force during use. This fixing method is simple and reliable, and facilitates assembly and maintenance.
[0041] The embodiments of this application do not limit the number of the first fixing hole 411 and the second fixing hole; those skilled in the art can adjust them according to actual conditions. For example, as shown... Figure 3 As shown, taking the setting of four first fixing holes 411 and four second fixing holes as an example, the four first fixing holes 411 are respectively located at the four corners of the first fixing base 410, and the four second fixing holes are set on the housing 200 and aligned with the four first fixing holes 411. The external fastener can be a screw, which is used to fix the first fixing base 410 to the housing 200 in a tight fit by passing the four first fixing holes 411 and the four second fixing holes in sequence.
[0042] Understandably, referring to Figure 3 , 4 As shown, the light-emitting module 310 includes a second mounting base 311 and a light source (not shown in the figure). The light source is disposed on the surface of the second mounting base 311, which is connected to the surface of the housing 200 and located on one side of the detection channel 220. By mounting the light source on the surface of the second mounting base 311 and connecting the second mounting base 311 to the surface of the housing 200, the light source is stably located on one side of the detection channel 220, allowing for precise alignment between the light source and the area through which the oil flows in the detection channel 220, thereby improving the stability of the optical signal and the measurement accuracy.
[0043] Understandably, referring to Figure 3 , 4 As shown, the light sensing module 320 includes a third mounting base 321 and a light sensor (not shown in the figure). The light sensor is disposed on the surface of the third mounting base 321. The third mounting base 321 is connected to the surface of the housing 200 and located on the other side of the detection channel 220, aligned with the second mounting base 311. By mounting the light sensor on the surface of the third mounting base 321 and fixing the third mounting base 321 to the surface of the housing 200, effective optical path transmission between the light source and the light sensor is achieved, ensuring stable reception of the light signal and improving measurement accuracy and response speed. The alignment of the third mounting base 321 with the second mounting base 311 reduces measurement errors caused by positional deviations and simplifies the installation and debugging process.
[0044] For example, such as Figure 3 , 4 As shown, the light source can be a mid-infrared light source. The mid-infrared light source generates a light signal, which passes sequentially through the oil flowing through the detection channel 220 and the filter membrane before reaching the photosensor. The photosensor is equipped with a light source driving circuit and a post-processing circuit for the light signal. The post-processing circuit contains a database that has been compared and calibrated, and the numerical value of the organic acid content in the oil can be obtained through mathematical calculations.
[0045] Understandably, referring to Figure 3 , 4As shown, the second fixing base 311 has a third fixing hole 312, the third fixing base 321 has a fourth fixing hole 322, and the surface of the housing 200 has a fifth fixing hole (not shown in the figure) that matches the third fixing hole 312 and the fourth fixing hole 322. External fasteners can pass through the third fixing hole 312, the fourth fixing hole, and the fifth fixing hole in sequence to fix the second fixing base 311 and the third fixing base 321 to the surface of the housing 200. By providing the third fixing hole 312 and the fourth fixing hole 322 on the second fixing base 311 and the third fixing base 321, and providing the matching fifth fixing hole on the surface of the housing 200, external fasteners can pass through these holes in sequence for connection, thereby achieving a stable fixation of the second fixing base 311 and the third fixing base 321 to the surface of the housing 200. This reduces the loosening or displacement of the light source and photosensor caused by external forces or vibrations, and this fixing method is simple and reliable, facilitating assembly and maintenance.
[0046] The embodiments of this application do not limit the number of the third fixing hole 312, the fourth fixing hole 322, and the fifth fixing hole; those skilled in the art can adjust them according to actual circumstances. For example, as shown... Figure 3 , 4 As shown, taking the setting of four third fixing holes 312, four fourth fixing holes 322, and four fifth fixing holes as an example, the four third fixing holes 312 are located at the four corners of the second fixing block, the four fourth fixing holes 322 are located at the four corners of the third fixing block, and the four fifth fixing holes are set on the housing 200 and aligned with the four third fixing holes 312 and the four fourth fixing holes 322. The external fasteners can be screws, which are passed through the four third fixing holes 312, the four fifth fixing holes, and the four fourth fixing holes 322 in sequence to fix the second fixing seat 311 and the third fixing seat 321 to the housing 200 and ensure a tight fit.
[0047] Understandably, the base 100 is detachably connected to the external device. This detachable connection facilitates installation and maintenance. In some embodiments, the base 100 is secured to the external device using screws.
[0048] Understandably, referring to Figure 2 , 3 As shown, the housing 200 also includes an expansion interface 240, which is connected to the main channel 210. The expansion interface 240 is located on the side of the main channel 210 away from the branch channel 230, and the number of expansion interfaces 240 matches the number of branch channels 230. By setting the expansion interface 240, external sensors or devices can be connected to complete more functions.
[0049] For example, such as Figure 2 , 3As shown, taking the setting of two expansion interfaces 240 as an example, both expansion interfaces 240 are located on the side of the housing 200 near the main channel 210. The two expansion interfaces 240 can be connected to other sensors, such as a particulate sensor (capable of detecting the solid particle content in the oil), a moisture sensor (capable of detecting the moisture content in the oil), a pressure sensor (capable of measuring the oil pressure), and a flow sensor (capable of monitoring the oil flow rate). The two sensors can also be connected to other devices, such as flow guiding devices, which can push the oil from the main channel 210 to the diversion channel 230.
[0050] Understandably, referring to Figure 1 As shown, the oil acid value detection sensor also includes a display component 500, which is connected to the side of the housing 200 away from the base 100. The independently configured display component 500 allows operators to conveniently view detection data such as the oil's acid value and temperature in real time.
[0051] For example, such as Figure 1 As shown, the display component 500 includes a display screen (not shown), three buttons (not shown), and a housing. The display screen can display the acid value and temperature of the oil in real time, and the buttons can be used to control the display screen to switch the displayed content. In some embodiments, the display component 500 has a built-in communication module that can transmit the detected acid value and temperature data to an external device for further processing and analysis.
[0052] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.
Claims
1. An oil acid value detection sensor, characterized in that, include: A base that connects to external devices; The housing is disposed on the surface of the base. The housing contains a main channel, a detection channel, and a diversion channel. The main channel and the detection channel are flush. There are two diversion channels, and the two ends of each diversion channel are connected to the main channel and the detection channel, respectively. The cross-sectional area of the main channel is larger than that of the diversion channel, and the cross-sectional area of each diversion channel is larger than that of the detection channel. An acid value detection component includes a light-emitting module, a filter film, and a light-sensing module. The light-emitting module is disposed on the surface of the housing and located on one side of the detection channel. The light-sensing module is disposed on the surface of the housing and located on the other side of the detection channel and aligned with the light source. The filter film is disposed between the detection channel and the light-sensing module. The light-sensing module is used to receive the light signal emitted by the light-emitting module and passing through the detection channel.
2. The oil acid value detection sensor according to claim 1, characterized in that, The oil acid value detection sensor also includes a temperature detection component, which is connected to the surface of the housing and located on one side of the detection channel. The temperature detection component is used to detect the oil temperature.
3. The oil acid value detection sensor according to claim 2, characterized in that, The temperature detection assembly includes a temperature sensor and a first fixing base. The temperature sensor is disposed on the surface of the first fixing base, and the first fixing base is connected to the surface of the housing and located on one side of the detection channel.
4. The oil acid value detection sensor according to claim 3, characterized in that, The first fixing seat is provided with a first fixing hole, and the surface of the housing is provided with a second fixing hole that matches the first fixing hole. External fasteners can pass through the first fixing hole and the second fixing hole in sequence to fix the first fixing seat and the surface of the housing in a fixed connection.
5. The oil acid value detection sensor according to claim 1, characterized in that, The light-emitting module includes a second fixing base and a light source. The light source is disposed on the surface of the second fixing base, which is connected to the surface of the housing and located on one side of the detection channel.
6. The oil acid value detection sensor according to claim 5, characterized in that, The photosensitive module includes a third mounting base and a photosensitive sensor. The photosensitive sensor is disposed on the surface of the third mounting base. The third mounting base is connected to the surface of the housing and is located on the other side of the detection channel and aligned with the second mounting base.
7. The oil acid value detection sensor according to claim 6, characterized in that, The second fixing seat is provided with a third fixing hole, the third fixing seat is provided with a fourth fixing hole, and the surface of the housing is provided with a fifth fixing hole that matches the third fixing hole and the fourth fixing hole. External fasteners can pass through the third fixing hole, the fourth fixing hole and the fifth fixing hole in sequence to fix the second fixing seat and the third fixing seat to the surface of the housing.
8. The oil acid value detection sensor according to claim 1, characterized in that, The base is detachably connected to external devices.
9. The oil acid value detection sensor according to claim 1, characterized in that, The housing also includes an expansion interface, which is connected to the main channel. The expansion interface is located on the side of the main channel away from the branch channel, and the number of expansion interfaces matches the number of branch channels.
10. The oil acid value detection sensor according to claim 1, characterized in that, The oil acid value detection sensor also includes a display component, which is connected to the side of the housing away from the base.