CN215179666U

CN215179666U - Integrated temperature detection's turbidity sensor

Info

Publication number: CN215179666U
Application number: CN202121143162.2U
Authority: CN
Inventors: 刘显生; 郭惠均; 陈懿
Original assignee: Changde Sigao Technology Co ltd
Current assignee: Changde Sigao Technology Co ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2021-12-14
Anticipated expiration: 2031-05-26

Abstract

The utility model belongs to the technical field of turbidity detection, in particular to a turbidity sensor integrating temperature detection, which comprises a transparent shell component, wherein the transparent shell component comprises a transparent outer shell, a transparent inner shell and an O-shaped sealing ring A; the PCB board assembly is inserted into the transparent shell assembly and comprises a PCB board, a light pipe bracket, an infrared transmitting tube, an infrared receiving tube and a thermistor NTC; the O-ring seal B is fitted outside the transparent housing assembly with the base cover covering the upper end of the transparent housing assembly. Through the transparent inner shell that sets up to have lens and prism and the thermistor NTC on the PCB board, make this turbidity sensor have the function of detecting dirty degree of water and temperature, detectivity is high, compact structure, and overall dimension is little, and the installation is simple.

Description

Integrated temperature detection's turbidity sensor

Technical Field

The utility model belongs to the technical field of the turbidity detects, specifically relate to a turbidity sensor that integrated temperature detected.

Background

In order to determine the degree of cleanliness of articles to be washed according to the degree of contamination of water during a washing process, a turbidity sensor is required to detect the degree of contamination of water, and a current washing operation mode is set according to a determination result.

However, the turbidity sensors for washing household appliances (such as dishwashers and washing machines) do not integrate temperature testing, and need to be separately and independently arranged on the washing equipment, so that the turbidity sensors have large occupied positions, not compact enough structure and complex assembly, which are not beneficial to improving the production efficiency of the washing equipment, and the components of the combined sensor for temperature detection are often distorted due to the temperature generated by the sensor and/or the temperature change of the washing medium is determined too slowly due to the structure of the sensor.

The known turbidity sensor for washing household appliances is provided with an infrared transmitting tube and an infrared receiving tube which are opposite to each other to detect the turbidity degree of water, the difference of feedback voltage values obtained when different turbidity sensors detect liquid with the same turbidity is large, and the washing program cannot be determined according to the turbidity of the washing water because the turbidity of the washing water is not accurately detected.

Based on the current technical insufficiency, the utility model discloses specially put forward.

Disclosure of Invention

In order to solve the above problems in the prior art, an object of the present invention is to provide a turbidity sensor for a washing household appliance, which can detect the turbidity degree and temperature of water quickly and accurately, and has a small external dimension and a simple installation.

In order to achieve the above object, the embodiment of the present invention is as follows, a turbidity sensor integrated with temperature detection, characterized in that: the sealing device comprises a transparent shell component, a sealing ring component and a sealing ring component, wherein the transparent shell component comprises a transparent outer shell, a transparent inner shell and an O-shaped sealing ring A; the PCB board assembly is inserted into the transparent shell assembly and comprises a PCB board, a light pipe bracket, an infrared transmitting tube, an infrared receiving tube and a thermistor NTC; the O-ring seal B is fitted outside the transparent housing assembly with the base cover covering the upper end of the transparent housing assembly.

Further, the turbidity sensor integrating temperature detection comprises a transparent shell assembly, a transparent inner shell and an O-shaped sealing ring A, wherein 4-8 clamping blocks are arranged on the side wall of the transparent shell assembly, and 2 detection parts with different lengths are arranged at the bottom of the transparent shell assembly; the upper portion of the transparent inner shell is provided with 2 supporting columns which are positioned with the PCB, a circular clamping ring is arranged on the outer portion of the transparent inner shell, 2 lenses are arranged in the transparent inner shell, 2 corresponding square supporting columns and 1 long supporting column for placing a thermistor NTC are arranged at the bottom of the transparent inner shell, corresponding lenses are arranged at the bottoms of the 2 corresponding square supporting columns, and a 45-degree prism is arranged outside the lenses of the supporting columns.

Further, a turbidity sensor that integrated temperature detected, PCB board subassembly includes PCB board, infrared transmitting tube, infrared receiving tube, fluorescent tube support, thermistor NTC, infrared transmitting tube, infrared receiving tube, thermistor NTC welding hole have been arranged on the PCB board, and 4 that correspond around upper portion arranged cover the copper line, the fluorescent tube support is preceding to be provided with infrared transmitting tube, infrared receiving tube pin through-hole, infrared transmitting tube, infrared receiving tube's pin pass the fluorescent tube support after bending, thermistor NTC sets up in PCB board bottom.

Further, the O-shaped sealing ring B is assembled outside the transparent shell component.

Further, a turbidity sensor of integrated temperature detection, be provided with 4 ~ 8 buckles on the base, detain mutually with 4 ~ 8 lugs on the transparent case lateral wall, outside bilateral symmetry is provided with two foraminiferous cylinders that are used for fixing.

Has the advantages that:

the utility model provides a turbidity sensor that integrated temperature detected has thermistor NTC on transparent inner shell and the PCB board of lens and prism through the setting, makes this turbidity sensor have the function that detects dirty degree of water and temperature, and detectivity is high, compact structure, and overall dimension is little, and the installation is simple.

Drawings

Fig. 1 is a schematic cross-sectional view of the present invention.

Fig. 2 is an explosion diagram of the present invention.

Fig. 3 is a schematic cross-sectional view of the transparent casing assembly of the present invention.

Fig. 4 is an exploded view of the transparent casing assembly of the present invention.

Fig. 5 is a perspective view of the transparent casing of the present invention.

Fig. 6 is a perspective view of the transparent inner shell of the present invention.

Fig. 7 is a schematic cross-sectional view of the transparent inner shell of the present invention.

Fig. 8 is a schematic cross-sectional view of the PCB assembly of the present invention.

Fig. 9 is an explosion diagram of the PCB assembly of the present invention.

Fig. 10 is a perspective view of the base of the present invention.

Fig. 11 is a schematic diagram of the operation of the optical path of the present invention.

In the figure, 1 transparent shell component, 1-1 transparent shell, 1-2 transparent inner shell, 1-3O type sealing ring A, 2 PCB plate component, 2-1 PCB plate, 2-2 light pipe bracket, 2-3 infrared receiving tube, 2-4 infrared transmitting tube, 2-5 thermistor NTC, 3 base and 4O type sealing ring B.

Detailed Description

The utility model provides a turbidity sensor that integrated temperature detected, in order to make the utility model discloses a purpose, technical scheme and effect are clearer, clear and definite, and it is right with the accompanying drawing below the utility model discloses do further detailed description.

As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, and fig. 10, the turbidity sensor integrated with temperature detection according to the present invention includes a transparent housing assembly 1, where the transparent housing assembly 1 includes a transparent outer housing 1-1, a transparent inner housing 1-2, and an O-ring A1-3; the PCB assembly 2 is inserted into the transparent shell assembly 1, the PCB assembly 2 comprises a PCB 2-1, a light pipe support 2-2, an infrared transmitting tube 2-4, an infrared receiving tube 2-3 and a thermistor NTC2-5, the infrared transmitting tube 2-4 and the infrared receiving tube 2-3 are firstly placed into the light pipe support 2-2 during assembly, then the light pipe support 2-2 is clamped into the PCB 2-1 and is welded with the thermistor NTC2-5 and then placed into the transparent shell assembly 1, the O-shaped sealing ring B4 is assembled outside the transparent shell assembly 1, and the base 3 covers the upper end of the transparent shell assembly 1.

As shown in fig. 3, 4, 5, 6 and 7, further, the transparent housing assembly 1 includes a transparent housing 1-1, a transparent inner housing 1-2 and an O-ring A1-3, the transparent housing 1-1 is made of a transparent material, 4-8 fixture blocks are disposed on a side wall, and 2 detection portions with different lengths are disposed at a bottom; transparent inner shell 1-2 is made for transparent optical material, and upper portion is provided with 2 pillars with the PCB location, and the outside is provided with circular snap ring, and inside is provided with 2 lens T1 and T4, and the bottom is provided with 2 square pillars that correspond and places 1 long pillar of thermistor NTC2-5, and 2 square pillar bottoms that correspond are provided with corresponding lens T2 and T3, and the lens outside of pillar is provided with 45 prism L5 and L6, O type sealing washer A1-3 is made by environmental protection rubber.

As shown in fig. 8 and 9, further, the PCB assembly 2 includes a PCB 2-1, an infrared transmitting tube 2-4, an infrared receiving tube 2-3, a light pipe support 2-2, and a thermistor NTC2-5, the PCB 2-1 is disposed with a welding hole of the infrared transmitting tube 2-4, the infrared receiving tube 2-3, and a thermistor NTC2-5, the upper portion is disposed with 4 copper-clad wires corresponding to each other, a pin through hole of the infrared transmitting tube 2-4 and the infrared receiving tube 2-3 is disposed in front of the light pipe support 2-2, a pin of the infrared transmitting tube 2-4 and the infrared receiving tube 2-3 is bent and then passes through the light pipe support 2-2, the thermistor NTC2-5 is disposed at the bottom of the PCB 2-1, and when the temperature of the liquid to be measured changes, a voltage signal output by the thermistor NTC2-5 can be timely transmitted, And (4) accurate output.

As shown in fig. 10, further, 4 to 8 fasteners are arranged on the base 3 and are fastened with 4 to 8 bumps on the side wall of the transparent shell 1-1, and two columns with holes for fixing are symmetrically arranged on two sides of the outer part.

As shown in fig. 7 and 11, further, the turbidity sensor integrating temperature detection has the turbidity detection principle that an infrared emission tube 2-4 on a PCB 2-1 emits infrared light, the infrared light is changed into parallel light through a convex lens T1 on a transparent inner shell 1-2, the parallel light is reflected to a convex lens T2 through a prism L5 and then is condensed into water, the light is changed into parallel light through a convex lens T3 after passing through particles in the water, the parallel light is emitted to a convex lens T4 through a prism L6, and the convex lens T4 is condensed and then is emitted to an infrared receiving tube 2-3; the turbidity substance in the water can attenuate the light intensity, the infrared light emitted by the infrared emission tube 2-4 passes through the liquid to be detected and is received by the infrared receiving tube 2-3 to output a voltage signal, and the output voltage changes along with the turbidity change of the water.

Claims

1. The utility model provides an integrated temperature detection's turbidity sensor, its characterized in that, includes transparent shell subassembly, PCB board subassembly, base and O type sealing washer B, transparent shell subassembly includes that transparent shell, transparent inner shell, O type sealing washer A insert the PCB board subassembly of transparent shell subassembly, PCB board subassembly includes PCB board, fluorescent tube support, infrared transmitting tube, infrared receiving tube, thermistor NTC, puts into the fluorescent tube support to infrared transmitting tube and infrared receiving tube earlier during the assembly, then goes into PCB inboard fluorescent tube support card, and puts into transparent shell subassembly after having welded together with thermistor NTC, O type sealing washer B assembles in transparent shell subassembly outsidely, the base closing cap is in transparent shell subassembly upper end.

2. The turbidity sensor according to claim 1, wherein the transparent casing assembly comprises a transparent outer casing, a transparent inner casing, and an O-ring seal a, the transparent outer casing is made of a transparent material, the sidewall of the transparent outer casing is provided with 4-8 fixture blocks, and the bottom of the transparent outer casing is provided with 2 detection parts with different lengths.

3. The turbidity sensor according to claim 2, wherein the transparent inner casing is made of transparent optical material, and has 2 posts on the top for positioning with the PCB, a circular snap ring on the outside, 2 lenses T1 and T4 on the inside, 2 corresponding square posts and 1 long post for placing the NTC thermistor on the bottom, corresponding lenses T2 and T3 on the bottom of the 2 corresponding square posts, and 45 ° prisms L5 and L6 on the outside of the lenses of the posts.

4. The integrated temperature sensing turbidity sensor according to claim 2, wherein said O-ring a is made of an environmentally friendly rubber.

5. The turbidity sensor integrating temperature detection according to claim 1, wherein said PCB assembly comprises a PCB board, an infrared transmitting tube, an infrared receiving tube, a light pipe holder, and a thermistor NTC, said PCB board has an infrared transmitting tube, an infrared receiving tube, and a thermistor NTC welding hole, and 4 copper-clad wires are disposed on the upper portion of said PCB board.

6. The turbidity sensor according to claim 5, wherein the light pipe holder has through holes for pins of the infrared emitting tube and the infrared receiving tube, the pins of the infrared emitting tube and the infrared receiving tube are bent and then pass through the light pipe holder, and the NTC is disposed at the bottom of the PCB.

7. The turbidity sensor with integrated temperature detection according to claim 1, wherein the base is provided with 4-8 fasteners, which are engaged with 4-8 protrusions on the side wall of the transparent casing, and two cylinders with holes for fixing are symmetrically arranged on two sides of the outer part.