TWI721890B - Water quality sensor - Google Patents

Abstract

The present invention relates to a water quality sensor, which includes a base body and a sensing module, wherein the hollow base of the base body is formed with an accommodating space, and a first transparent extending in the same direction is formed on one side of the base body. The light part and the second light-transmitting part are formed inside the second light-transmitting part with a storage space communicating with the accommodating space, and the storage space is adjacent to the first light-transmitting part on a side surface for light to pass through and focus The condensing part of the phenomenon, and the two sides of the concentrating part are formed with a first concentrating surface and a second concentrating surface, and the circuit board of the sensing module is electrically connected with light for projecting light to the concentrating part The emitter and the light receiver for receiving light, because the light emitter is projected to the light receiver, the condensing part of the base can be used to focus the light, thereby reducing the loss of light energy, so as to collect more More light energy reaches the light receiver, thereby improving the accuracy of judging the turbidity value of the water flow, thereby increasing the efficiency of washing.

Description

Water quality sensor

The present invention relates to a water quality sensor, especially the light emitter of the sensing module is to project light to the light receiver through direct radiation or one refraction, and in the process of projection, it can use the light collecting of the base body. Part to cause the passing light to produce a focusing phenomenon, thereby reducing the loss of light energy, thereby improving the accuracy of judging the turbidity value of the water flow, thereby increasing the washing efficiency.

According to the continuous advancement of the electronic technology era, many convenient home appliances have come out, and different home appliances can be used for rapid processing in daily life to reduce the time-consuming, labor-intensive and imperfect manual operations. In general household appliances that need to use water for operation, such as washing household appliances such as washing machines or dishwashers, they use the water flow inside the body with cleaning liquid or detergent for cleaning operations, which can eliminate the need for hands-on cleaning. Wash clothes, dishes or tableware and other items.

Moreover, during the cleaning process of general washing household appliances, the water flow inside the body will be affected by the dust, fines, cleaning liquid or detergent and other substances accompanying the objects to be cleaned, which will cause the turbidity of the water to be relatively increased. Only through repeated cleaning operations can the object to be cleaned be cleaned. Therefore, a water quality sensor is installed in many more advanced washing appliances, and the water quality sensor can transmit or receive by projecting light. After detecting the water quality, by detecting the turbidity value of the water quality, the turbidity of the water quality can be judged, and then set according to the turbidity value. Determine the current cleaning operation mode of household appliances such as washing machines or dishwashers (such as increasing the number of cleanings or extending the cleaning time, etc.). The purpose is to improve the washing efficiency and achieve the effect of avoiding water waste.

However, when the light emitter in the current water quality sensor projects light outward, it will be refracted, and when the light enters the water flow, it will touch the substance in the water and cause scattering, which will cause a lot of light energy. Therefore, when the light receiver in the water quality sensor receives light, the turbidity value cannot be accurately known, which affects the accuracy of the judgment.

Therefore, how to try to solve the above-mentioned deficiencies and inconveniences of conventional use is the direction that relevant industries in this industry urgently want to study and improve.

Therefore, in view of the above-mentioned deficiencies, the inventor collected relevant information, evaluated and considered from many parties, and based on the accumulated years of experience in this industry, through continuous trials and modifications, the patentee of the invention of this water quality sensor was designed. .

The first object of the present invention is to form an accommodating space inside the hollow base of the base, and a first light-transmitting part and a second light-transmitting part extend in the same direction at one side of the base, and then the second light-transmitting part A storage space communicating with the accommodating space is formed inside the light portion, and the storage space is adjacent to the first light-transmitting portion on a side surface provided with a condensing portion for light to pass through to produce a focusing phenomenon, and the condensing portion is adjacent to the storage A side surface of the space is formed with a first light-concentrating surface, and a side surface of the light-concentrating part is adjacent to the first light-transmitting part and a second light-concentrating surface is formed, and the circuit board of the sensing module is electrically connected to project light The light emitter to the condensing part and the light receiver for receiving the focused light are the condensing part of the base body that can be used because the light emitter of the sensing module is projected to the light receiver To focus the light passing through, thereby reducing the loss of light energy, so that more light energy can be collected The light receiving body of the sensing module can improve the accuracy of the sensing module to determine the turbidity value of the water flow, thereby achieving the purpose of increasing the washing performance.

The second object of the present invention is that the two sides of the light-concentrating part of the base body are respectively provided with a first light-concentrating surface and a second light-concentrating surface, which can effectively improve the focusing effect through the two focusing surfaces, thereby reducing light The purpose of energy loss.

The third object of the present invention is that the first light-transmitting part and the second light-transmitting part of the base body are contained in the housing, that is, they will not directly contact the water flow, so as to prevent the first light-transmitting part and the second light-transmitting part Dirt is accumulated on the surface of the part, thereby maintaining a good light projection path, and achieving the purpose of reducing the number of cleaning and maintenance of the water quality sensor.

The fourth object of the present invention is that the light emitter and light receiver of the sensing module are directly formed on the circuit board by using surface adhesion technology, which can realize automatic assembly without additional components, so as to reduce the number of components. The material and assembly cost can be reduced, and the assembly time can be reduced, thereby achieving the goal of automating assembly and reducing manufacturing cost.

The fifth object of the present invention is that the first light-transmitting part of the base is located inside the accommodating space of the base and is provided with a light guide rod. When the light emitter of the sensing module projects light, it can pass through the light guide rod. To achieve the purpose of enhancing the effect of concentrated light.

The sixth object of the present invention is that the first light-transmitting part and the second light-transmitting part of the base body are respectively provided with a light-concentrating part, and the shapes of the two light-concentrating parts are the same, so that the sensing module is assembled in the base. It is not necessary to identify the direction of assembly, so as to achieve the purpose of improving the smoothness of assembly.

1: seat body

11: Pedestal

110: accommodating space

1101: opening

12: The first light transmission part

121: light guide

122: refracting surface

123: Glossy Surface

124: Glossy Surface

125: light guide

13: The second light transmission part

130: storage space

14: Condenser

141: The first light-gathering surface

142: The second light-gathering surface

2: Sensing module

21: circuit board

211: Substrate

212: positioning plate

213: Electrical connector

22: light emitter

221: light-emitting surface

23: Light receiver

231: Glossy

3: shell

30: Channel

31: Shell seat

310: Groove

311: Perforation

312: Buckle slot

32: shell

320: accommodating slot

321: base

322: Convex

323: storage slot

324: Buckle block

33: Washer

[Figure 1] is a perspective view of a preferred embodiment of the present invention.

[Figure 2] is a three-dimensional exploded view of a preferred embodiment of the present invention.

[Figure 3] is a perspective exploded view of the preferred embodiment of the present invention from another perspective.

[Figure 4] is a cross-sectional side view of the preferred embodiment of the present invention when in use.

[Figure 5] is a perspective view of another embodiment of the present invention.

[Figure 6] is an exploded perspective view of another embodiment of the present invention.

[Figure 7] is an exploded perspective view of another embodiment of the present invention from another perspective.

[Figure 8] is a cross-sectional side view of another embodiment of the present invention when in use.

[Figure 9] is a perspective view of another embodiment of the present invention.

[Figure 10] is a three-dimensional exploded view of yet another embodiment of the present invention.

[Figure 11] is a three-dimensional exploded view from another perspective of yet another embodiment of the present invention.

[Figure 12] is a side cross-sectional view of yet another embodiment of the present invention in use.

In order to achieve the above-mentioned purpose and effect, the technical means and structure adopted by the present invention are illustrated in detail below with regard to the preferred embodiments of the present invention, so as to fully understand the features and functions.

Please refer to Figures 1, 2, 3, and 4, which are a perspective view of a preferred embodiment of the present invention, a perspective exploded view of a preferred embodiment, a perspective exploded view of a preferred embodiment from another perspective, and a preferred embodiment The side cross-sectional view when in use, it can be clearly seen from the figure that the preferred embodiment of the present invention includes a base 1, a sensing module 2 and a housing 3. Among them:

The base body 1 is a cylindrical base 11, and an accommodating space 110 is formed in the hollow of the base 11, and an opening 1101 is formed on one side of the accommodating space 110, and the base 11 is opposite to the other side of the opening 1101. Extends in the same direction with a first transparent portion 12 and a second The light-transmitting portion 13, wherein the first light-transmitting portion 12 has a light guide 121, an oblique refraction surface 122 is formed on one end of the light guide 121, and a raised light exit surface 123 is formed on the side of the light guide 121 , And the light guide 121 is adjacent to the accommodating space 110 of the base 11 on a side surface formed with an arc-shaped light incident surface 124, and then inside the second light-transmitting portion 13 is formed with an accommodating space communicating with the accommodating space 110 130, and the storage space 130 is adjacent to the first light-transmitting portion 12 on a side surface with a light-condensing portion 14 for light to pass through, and the light-collecting portion 14 is adjacent to the storage space 130 on a side surface to form an arc-shaped first condensing portion. A light surface 141, and a side surface of the light collecting portion 14 adjacent to the first light transmitting portion 12 is formed with a second light collecting surface 142 complementary to the first light collecting surface 141 and in an arc shape.

The sensing module 2 includes a circuit board 21, a light emitter 22, and a light receiver 23. The circuit board 21 has a rectangular substrate 211, and a positioning plate 212 extends on one side of the substrate 211. The light emitter 22 and the light receiver 23 are electrically connected to the 211 and the positioning plate 212 by using surface-mount technology (SMT), and a light emitting surface 221 is formed on the surface of the light emitter 22, and the light receiver 23 A light-receiving surface 231 is formed on the side surface; in addition, a rectangular electrical connector 213 is electrically connected to the substrate 211 of the circuit board 21.

The housing 3 includes a housing 31 and a transparent housing 32, wherein a groove 310 is formed inside the housing 31, and a rectangular perforation 311 is provided on the bottom surface of the groove 310, and the inner wall of the groove 310 is provided with A plurality of buckle grooves 312, and the housing 32 has a base 321 that is enclosed in the groove 310 of the housing base 31, and a accommodating groove 320 is formed inside the hollow of the base 321, and two sides of the base 321 extend in the same direction. The protruding portion 322 has an open channel 30 formed between the two protruding portions 322, and the two protruding portions 322 have an inner shape A receiving groove 323 communicating with the receiving groove 320 is formed, a plurality of buckle blocks 324 are provided on the outer surface of the base 321, and a gasket 33 is provided in the receiving groove 320 of the housing 32.

The base 11, the first light-transmitting portion 12, the second light-transmitting portion 13, and the light-concentrating portion 14 of the above-mentioned seat body 1 are preferably integrally formed, but in practical applications, the first light-transmitting portion 12 and the first light-transmitting portion 12 The two light-transmitting parts 13 can also be a separate component from the base 11, which can be combined into one body by means of assembly (such as snapping or bonding). The above is only a preferred embodiment of the present invention, not for this reason. The scope of the patent of the present invention is limited. Therefore, all simple modifications and equivalent structural changes made by using the description of the present invention and the content of the drawings shall be included in the scope of the patent of the present invention for the same reason and shall be stated.

Furthermore, the side of the first condensing surface 141 of the condensing portion 14 extends to the bottom surface of the storage space 130 of the second translucent portion 13, and the side of the second condensing surface 142 of the condensing portion 14 is extended To the surface of the base 11 to facilitate the demolding operation, so that the mold for making the base 1 does not need to be provided with a slider or an oblique pin, thereby reducing the manufacturing difficulty and improving the yield of the product.

In addition, the first condensing surface 141 and the second condensing surface 142 of the above-mentioned condensing portion 14 are preferably in a staggered shape, which can increase the area of light refraction and thereby improve the performance of focusing.

However, the shape of the first condensing surface 141 and the second condensing surface 142 of the aforementioned condensing portion 14 may also be arc-shaped, curved, corrugated, or other shapes in practical applications.

In addition, the circuit board 21 of the sensing module 2 can be further provided with electronic components such as a driving circuit or a control chip, and the electrical connector 213 of the circuit board 21 can be connected to the driving circuit by a transmission line. Drive circuit or control chip to drive light emitter 22 and the light-receiving body 23 operate, but this part of the drive circuit or control chip and other components are not the main points of the invention of this case, so I will not repeat them here.

When the present invention is assembled, the circuit board 21 of the sensing module 2 can be assembled toward the accommodating space 110 of the base 11 of the base body 1 first, and the positioning plate 212 of the circuit board 21 can be removed from the opening of the accommodating space 110 Enter at 1101 and extend into the receiving space 130 of the second light-transmitting portion 13, and then the substrate 211 of the circuit board 21 is positioned in the receiving space 110 of the base 11. At this time, the sensing module The light emitter 22 of 2 is aligned with the first light-transmitting portion 12, so that the light-emitting surface 221 of the light emitter 22 is aligned with the light-incident surface 124 of the first light-transmitting portion 12, and the light receiver 23 is opposed to The light-collecting portion 14 of the base 1 is aligned, and the light-receiving surface 231 of the light-receiving body 23 is aligned with the first light-gathering surface 141 of the light-gathering portion 14, and then the base 1 is mounted on the housing of the housing 3. In the groove 310 of 31, the gasket 33 is clamped between the housing 32 and the base 11, and the electrical connector 213 on the circuit board 21 is exposed in the through hole 311 of the housing 31. The housing 32 of the housing 3 is then combined with the housing base 31, so that the light guide body 121 of the first light transmitting portion 12 and the second light transmitting portion 13 respectively penetrate into the two receiving grooves 323 of the housing 32, and The plurality of buckle blocks 324 of the housing 32 are buckled into the plurality of buckle grooves 312 of the housing base 31 to form a buckling position, and the assembly of the present invention can be completed.

When the present invention is actually used, the housing 3 can be installed in the body (not shown in the figure) of washing household appliances (such as washing machine, dishwasher, or other equipment that needs to use water), and the housing The protruding portions 322 extending in the same direction on both sides of the body 32 penetrate into the working area inside the body, and the circuit board 21 of the sensing module 2 can be connected to the control system of the body by using the electrical connector 213 (in the figure) Not shown), so that the light emitter 22 of the sensing module 2 and The light receiver 23 can perform the operation of water turbidity detection.

When washing home appliances for cleaning operations, in addition to the water flow, the operation area contains added cleaning fluid or detergent, and objects to be cleaned (such as laundry, dishes, or tableware, etc.). The cleaning fluid or objects to be cleaned The above impurities (such as: dust, fines, residues, suspended particles or stains, etc.) will cause the water flow in the working area to easily produce turbidity. When the control system of washing home appliances is operated, In order to make the water flow in the working area pass through the channel 30 formed between the two protruding parts 322 of the housing 32, and drive the light emitter 22 of the sensing module 2 to project toward the first light transmitting part 12 of the base 1 Light, the light-emitting surface 221 of the light emitter 22 will first project the light to the light-incident surface 124 of the first light-transmitting portion 12, and make the light sequentially pass through the light guide 121 of the first light-transmitting portion 12, and use refraction The light is refracted vertically by the surface 122, so that the light path is L-shaped, and then projected outward from the light-emitting surface 123 of the first light-transmitting part 12, so that the light enters the channel 30, and most of the light is in contact with the water stream. Scattering occurs when the impurities are contained in it. However, the transmitted light that is not scattered will enter the condensing part 14 of the base 1, and pass through the second condensing surface 142 and the first concentrating surface of the condensing part 14 141 to generate the focusing phenomenon, thereby reducing the loss of light energy, and then using the first light-collecting surface 141 to project the focused light to the light-receiving surface 231 of the light-receiving body 23 to receive it by the light-receiving body 23 The received light change is converted into a sensing signal and transmitted to the control system of the washing household appliance via the circuit board 21 to determine the turbidity value of the water flow, and then further set or operate the subsequent cleaning operation to improve the washing efficiency, and It has the effect of energy saving and water saving.

When the light emitter 22 of the sensing module 2 projects light to the light receiver 23, the light will also pass through the two protruding portions 322 of the housing 32 opposing the inner wall surface, which is due to the housing 3 2 is made of transparent material, so it will not affect the behavior of light.

Furthermore, the light emitter 22 and the light receiver 23 of the above-mentioned sensing module 2 can also be exchanged in actual use. After the exchange, they can also be used for focusing through the light-concentrating part 14 of the base body 1. , Without affecting the use.

In addition, the light path from the light emitter 22 to the light receiver 23 of the sensing module 2 is between 10 and 50 mm, and the light path within this length has a better resolution.

Please refer to Figures 5, 6, 7, and 8, which are a perspective view of another embodiment of the present invention, a perspective exploded view of another embodiment, a perspective exploded view of another embodiment, and another perspective. A side cross-sectional view of an embodiment in use. It can be clearly seen from the figure that, compared with the preferred embodiment, the first light-transmitting portion 12 of the base body 1 is located in the container of the base 11 in another embodiment of the present invention. The interior of the space 110 can be further provided with a light guide column 125, and the light incident surface 124 of the first light transmitting portion 12 is formed at the end surface of the light guide column 125. When the light emitter 22 of the sensing module 2 projects light, Then, the light guide rod 125 can be used to further enhance the effect of concentrating light.

Please refer to Figures 9, 10, 11, and 12, which are a three-dimensional external view of another embodiment of the present invention, a three-dimensional exploded view of another embodiment, a three-dimensional exploded view of another embodiment, and another A cross-sectional side view of an embodiment in use. It can be clearly seen from the figure that, compared with the preferred embodiment, in another embodiment of the present invention, the first light-transmitting portion 12 can omit the use of the light guide body 121, and A storage space 130 is provided inside the first light-transmitting portion 12, and a side surface of the storage space 130 adjacent to the second light-transmitting portion 13 is also provided with a light-concentrating portion 14 through which light can pass, and the light-concentrating portion 14 is adjacent to An arc-shaped first condensing surface 141 is formed on one side of the storage space 130 , And the light-concentrating part 14 is adjacent to the second light-transmitting part 13 on a side surface formed with a second light-concentrating surface 142 that is complementary to the first light-concentrating surface 141 and in an arc shape, and the circuit board 21 of the sensing module 2 The substrate 211 can extend in the same direction on one side with two positioning plates 212 extending into the storage space 130 of the first light-transmitting portion 12 and the storage space 130 of the second light-transmitting portion 13, and on the two positioning plates 212 The light emitter 22 and the light receiver 23 arranged in opposite directions are electrically connected by surface adhesion technology, and a gasket 33 is clamped between the shell 32 of the housing 3 and the base 11 of the base 1 to pass through The washer 33 improves the overall waterproofness, and when the light emitter 22 of the sensing module 2 projects light to the light collecting portion 14 at one side of the storage space 130 of the first light transmitting portion 12, the light collecting portion 14 is transparent The first condensing surface 141 and the second concentrating surface 142 produce a focusing phenomenon, and the light will directly pass through the channel 30 of the housing 32, and then enter the condensing part 14 at one side of the second light-transmitting part 13, and The condensing part 14 on one side of the second light-transmitting part 13 is used for focusing and is projected to the light receiver 23 for signal conversion. Because the first light-transmitting part 12 uses the concentrating part 14 to focus and pass the light, In order to reduce the loss of light, and the shape of the first light-transmitting portion 12 and the second light-transmitting portion 13 can be the same, so that when the sensing module 2 is assembled inside the base 1, it is not necessary to identify the assembly direction, thereby Improve the smoothness of assembly.

The present invention has the following advantages:

(1) The light emitter 22 of the sensing module 2 can project light to the light receiver 23 through direct or primary refraction, and during the projection process, the light-concentrating part 14 of the base 1 can be used To cause the passing light to focus, thereby reducing the loss of light energy, so that more light energy can be collected to the light receiving body 23 of the sensing module 2, thereby improving the sensing module 2 to determine the turbidity of the water flow The accuracy of the value, thereby increasing the efficiency of washing.

(2) The two sides of the light-concentrating part 14 of the base body 1 are respectively provided with first light-concentrating surfaces 141 and the second condensing surface 142 can effectively enhance the focusing effect through the two focusing surfaces, thereby further reducing the loss of light energy.

(3) The first light-transmitting part 12 and the second light-transmitting part 13 of the base body 1 are contained in the housing 3, that is, they will not directly contact the water flow, so as to prevent the first light-transmitting part 12 and the second light-transmitting part Dirt accumulates on the surface of the portion 13 to maintain a good light projection path and reduce the number of cleaning and maintenance of the water quality sensor.

(4) The light emitter 22 and the light receiver 23 of the sensing module 2 are directly formed on the circuit board 21 by using surface adhesion technology, which can realize automatic assembly without additional components, so as to reduce the cost of components. Material and assembly costs, and can reduce assembly time, thereby achieving the effect of automating assembly and reducing manufacturing costs.

(5) In this other embodiment, the first light-transmitting portion 12 of the base body 1 is located inside the accommodating space 110 of the base 11 and is provided with a light guide column 125. When the light emitter 22 of the sensing module 2 projects light, It can achieve the purpose of enhancing the effect of concentrating light through the light guide 125.

(6) In another embodiment, the first light-transmitting portion 12 and the second light-transmitting portion 13 of the base body 1 are respectively provided with a light-concentrating portion 14, and the two light-concentrating portions 14 have the same shape, so that the sensing module 2When assembling inside the base 1, there is no need to identify the direction of assembly, so as to improve the smoothness of assembly.

The above are only the preferred embodiments of the present invention, which does not limit the patent scope of the present invention. Therefore, all simple modifications and equivalent structural changes made by using the description and drawings of the present invention should be included in the same reasoning. Within the scope of the patent of the present invention, it is agreed to Chen Ming.

In summary, the water quality sensor of the present invention is accurate when applied and implemented. It can actually achieve its efficacy and purpose. Therefore, the present invention is a research and development with excellent practicality. In order to meet the requirements of an invention patent application, an application is filed according to the law. I hope that the review committee will grant this case as soon as possible to ensure the inventor's hard research and development and creation. If there is any doubt in the review committee of the Jun Ju Bureau, please write to us for instructions, and the inventor will do his best to cooperate with you.

1: seat body

11: Pedestal

12: The first light transmission part

121: light guide

122: refracting surface

13: The second light transmission part

14: Condenser

142: The second light-gathering surface

2: Sensing module

21: circuit board

211: Substrate

212: positioning plate

213: Electrical connector

22: light emitter

221: light-emitting surface

23: Light receiver

231: Glossy

3: shell

30: Channel

31: Shell seat

310: Groove

311: Perforation

312: Buckle slot

32: shell

321: base

322: Convex

324: Buckle block

33: Washer

Claims (14)

A water quality sensor includes a base body and a sensing module, wherein: The base has a base, and an accommodating space is formed inside the hollow of the base, and an opening is formed on one side of the accommodating space, and a first light-transmitting portion and a first light-transmitting portion and a second light-transmitting portion are extended in the same direction at the other side of the accommodating space. Two light-transmitting parts, and the first light-transmitting part has a light guide body that changes the light path, and a refraction surface that refracts the light once is formed on one end of the light guide body, and the second light-transmitting part is formed with a refraction surface inside the second light-transmitting part. The storage space is connected to the storage space, and the storage space is adjacent to a side surface of the first light-transmitting portion with a light-concentrating portion for light to pass through to produce a focusing phenomenon, and the light-concentrating portion is adjacent to the storage space on a side surface with a first A condensing surface, and a second condensing surface is formed on a side surface of the concentrating part adjacent to the first transparent part; The sensing module includes a circuit board, a light emitter, and a light receiver. The circuit board has a substrate positioned in the accommodating space of the base, and extends on one side of the substrate at the second light-transmitting part. The positioning plate in the storage space is electrically connected to the base plate and the positioning plate with a light emitter for projecting light to the condensing part, and a light receiver for receiving the focused light. According to the water quality sensor described in item 1 of the scope of patent application, the side surface of the light guide body of the first light transmitting portion is formed with a light emitting surface for focusing light, and the light guide body is adjacent to the accommodating space of the base A light incident surface for focusing light is formed on one side surface. As for the water quality sensor described in item 1 of the scope of patent application, the first light-collecting surface side of the light-collecting part is extended to the bottom surface of the storage space of the second light-transmitting part, and the second light-collecting part One side of the condensing surface extends to the surface of the base. According to the water quality sensor described in item 1 of the scope of patent application, the light emitter of the sensor module is adjacent to the first light-transmitting part on a side surface formed with a light-emitting surface, and the light receiver A light collecting surface is formed on a side surface adjacent to the first light collecting surface. For the water quality sensor described in item 1 of the scope of patent application, the base body and the sensing module are equipped with a housing outside, and the housing includes a housing base and a transparent shell, wherein the housing base A groove for the seat body and the sensing module is formed inside, and the inner wall of the groove is provided with a plurality of buckle grooves, and the shell has a base that is covered in the groove, and a supply is formed in the hollow of the base. The accommodating groove into which the base is inserted, and two protruding portions extend in the same direction on one side of the base, and an open channel is formed between the two protruding portions, and the two protruding portions are formed with an accommodating groove A storage slot connected with the first light-transmitting part and the second light-transmitting part is placed, and a plurality of buckle blocks for buckling the plurality of buckle grooves are provided on the outer surface of the base. For the water quality sensor described in item 5 of the scope of patent application, the substrate of the circuit board is electrically connected with an electrical connector, and a hole is provided on the bottom surface of the groove. According to the water quality sensor described in item 1 of the scope of patent application, the first light-transmitting part of the base body is located inside the accommodating space of the base and is provided with a light guide column. The water quality sensor described in the first item of the scope of patent application, wherein the light path from the light emitter to the light receiver of the sensor module is between 10 and 50 mm. A water quality sensor includes a base body and a sensing module, wherein: The base has a base, and an accommodating space is formed inside the hollow of the base, and an opening is formed on one side of the accommodating space. Two light-transmitting parts, and the first light-transmitting part and the second light-transmitting part are respectively formed with a storage space communicating with the accommodating space, and at least one of the inner sides of the two storage spaces is provided with light passing through and generating The condensing part of the focusing phenomenon, and the concentrating part is adjacent to a side surface of the storage space to form a first concentrating surface, and the concentrating part is opposite to the first concentrating surface and forming a second concentrating surface on the side surface. Glossy The sensing module includes a circuit board, and a light emitter and a light receiver arranged in opposite directions, wherein the circuit board has a substrate positioned in the accommodating space of the base and extends in the same direction on one side of the substrate There are two positioning plates located in the accommodating spaces of the first light-transmitting part and the second light-transmitting part, and one of the positioning plates is electrically connected with a light emitter for projecting light to the condensing part, and the other is positioned The board is provided with a light receiver for receiving the focused light. The water quality sensor described in item 9 of the scope of patent application, wherein the first condensing surface side of the condensing part extends to the bottom surface of the storage space of the second transparent part, and the second concentrating part One side of the condensing surface extends to the surface of the base. For the water quality sensor described in item 9 of the scope of patent application, the light emitter of the sensor module is adjacent to the first light-transmitting part on a side surface formed with a light-emitting surface, and the light receiver is adjacent to the first light-transmitting part. A light-collecting surface is formed on one side of the light-collecting surface. For example, the water quality sensor described in item 9 of the scope of patent application, wherein the base body and the sensing module are equipped with a shell, and the shell includes a shell base and a transparent shell, wherein the shell base A groove for the seat body and the sensing module is formed inside, and the inner wall of the groove is provided with a plurality of buckle grooves, and the shell has a base that is covered in the groove, and a supply is formed in the hollow of the base. The accommodating groove into which the base is inserted, and two protruding portions extend in the same direction on one side of the base, and an open channel is formed between the two protruding portions, and the two protruding portions are formed with an accommodating groove A storage slot connected with the first light-transmitting part and the second light-transmitting part is placed, and a plurality of buckle blocks for buckling the plurality of buckle grooves are provided on the outer surface of the base. In the water quality sensor described in item 12 of the scope of patent application, a gasket is clamped between the shell of the housing and the base of the base. For the water quality sensor described in item 9 of the scope of patent application, the housing space of the first light-transmitting part and the housing space of the second light-transmitting part of the base body are provided with opposite inner sides for light to pass through and generate secondary The condensing part of the focusing phenomenon, and the two condensing parts have the same shape.

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