CN211528206U - Multi-channel detection module applied to quick food and water quality inspection box - Google Patents
Multi-channel detection module applied to quick food and water quality inspection box Download PDFInfo
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- CN211528206U CN211528206U CN202020066836.2U CN202020066836U CN211528206U CN 211528206 U CN211528206 U CN 211528206U CN 202020066836 U CN202020066836 U CN 202020066836U CN 211528206 U CN211528206 U CN 211528206U
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Abstract
The embodiment of the utility model provides a multichannel detection module applied to a food and water quality quick detection box, which comprises a PD circuit board, a bottom plate, a frame, an upper cover, an LED circuit board and a plurality of channel detection units; each detection unit comprises a first elastic sheet, an optical filter pressing plate, a second elastic sheet, an LED, a cuvette and a PD; the LED circuit board is fixed to the front face of the rack, and the PD circuit board is fixed to the back face of the rack; the top surface of the rack is provided with a plurality of grooves, and a cuvette is inserted into each groove; the front surface of the frame is provided with a plurality of grooves, and each groove is internally provided with an optical filter. The embodiment of the utility model provides a be applied to multichannel detection module of food and quick inspection case of quality of water, the operation of being convenient for, the detection spectrum is complete, small in size, light in weight, convenient transportation carry, require lower, the installation and debugging and the maintenance of being convenient for to deposit the environment, detection efficiency is high, carries out the repeated detection to the same sample, still can guarantee the accuracy of detected data.
Description
Technical Field
The utility model relates to a food safety and water quality testing technical field especially relate to a be applied to multichannel detection module of food and quick inspection case of quality of water.
Background
With the attention of people to food safety and health industry, the demand of people on physicochemical detection products is increasing day by day, but physicochemical products manufactured by a spectrophotometer method are expensive in price, large in machine volume, complex in structure, complex in installation, debugging and maintenance, low in production efficiency, troublesome in operation and strict in storage environment requirements of the machine, and particularly dust, vibration and the like are avoided.
On one hand, the demand of people is increasing, and on the other hand, the current situation of the existing physical and chemical products is, so that the physical and chemical detection product which is low in price, small in size, simple in structure, convenient to transport and carry, not strict in storage environment requirement, and convenient to install, debug and maintain is urgently needed by people at present.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a be applied to multichannel detection module of food and quick inspection case of quality of water for solve the above-mentioned technical problem among the prior art.
In order to solve the above technical problem, on the one hand, an embodiment of the present invention provides a multi-channel detection module applied to a rapid food and water quality inspection box, which includes a photodiode circuit board, a bottom plate, a frame, an upper cover, an LED circuit board and a plurality of channel detection units;
each detection unit comprises a first elastic sheet, an optical filter pressing plate, a second elastic sheet, an LED, a cuvette and a photodiode;
the bottom plate is fixed on the bottom surface of the frame, the LED circuit board is fixed on the front surface of the frame, the photodiode circuit board is fixed on the back surface of the frame, and the upper cover is fixed on the upper surface of the frame;
the upper surface of the rack is provided with a plurality of grooves, a cuvette is inserted into each groove, and the cuvette is close to one side of the groove under the action of the first elastic sheet and the second elastic sheet after being inserted into the grooves of the rack;
the front surface of the frame is provided with a plurality of grooves, each groove is internally provided with an optical filter, and the optical filters are fixed with the frame through an optical filter pressing plate after being placed in the grooves;
the LEDs are integrated onto an LED circuit board and the photodiodes are integrated onto a photodiode circuit board.
Furthermore, four vertical surfaces of the cuvette are respectively composed of transparent glass and wool glass in an alternating mode, and after the cuvette is inserted into the groove of the rack, two transparent glass surfaces respectively face the photodiode circuit board and the LED circuit board.
Further, the liquid to be detected in the cuvette accounts for more than half of the total capacity of the cuvette.
Furthermore, the number of the LEDs contained in each detection unit is 3, and the LEDs are arrayed and integrated on the LED circuit board along the vertical direction;
the number of the photodiodes contained in each detection unit is 3, and the photodiodes are arrayed and integrated on the photodiode circuit board along the vertical direction.
Furthermore, the LED on the LED circuit board extends into the filter pressing plate, and the LED circuit board and the filter pressing plate are attached together.
Furthermore, the photodiode on the photodiode circuit board extends into the rack, and the photodiode circuit board is attached to the back surface of the rack.
Further, a round hole is formed between the LED and the photodiode inside the frame, and light emitted by the LED penetrates through the round hole to irradiate the center of the photodiode.
Further, the diameter of the round hole is larger than 1mm and smaller than 2 mm.
Further, the diameter of the circular hole is 1.5 mm.
The embodiment of the utility model provides a be applied to multichannel detection module of food and quick inspection case of quality of water, the operation of being convenient for, the detection spectrum is complete, small in size, light in weight, convenient transportation carry, require lower, the installation and debugging and the maintenance of being convenient for to deposit the environment, detection efficiency is high, carries out the repeated detection to the same sample, still can guarantee the accuracy of detected data.
Drawings
Fig. 1 is a whole machine three-dimensional structure diagram of a multi-channel detection module applied to a rapid food and water quality inspection box provided by the embodiment of the utility model;
fig. 2 is a front view of a main structure of a multi-channel detection module applied to a rapid food and water quality inspection box according to an embodiment of the present invention;
fig. 3 is a top view of a main structure of a multi-channel detection module applied to a rapid food and water quality inspection box according to an embodiment of the present invention;
fig. 4 is a rear view of a main structure of a multi-channel detection module applied to a rapid food and water quality inspection box according to an embodiment of the present invention;
figure 5 is the embodiment of the utility model provides a be applied to food and water quality and examine the multichannel detection module's of case optical system detection schematic diagram fast.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Fig. 1 is the embodiment of the utility model provides a be applied to food and water quality quick test case's multichannel detection module's complete machine stereogram, as shown in fig. 1, the embodiment of the utility model provides a be applied to food and water quality quick test case's multichannel detection module, the detecting element including mainboard 1, Photodiode (PD) circuit board 2, first copper post 3, bottom plate 4, frame 5, second copper post 6, upper cover 8, LED circuit board 9 and a plurality of passageway. Ten channels of detection cells are shown in fig. 1.
Each detection unit comprises a first elastic sheet 7, a light filter 10, a light filter pressing plate 11, a second elastic sheet 12, an LED13, a cuvette 14 and a photodiode 15.
The base plate 4 is fixed to the bottom surface of the chassis 5, and the main board 1 is connected to the bottom surface of the chassis 5 through the first copper pillar 3. The first copper pillar 3 may be an M3 copper pillar.
The LED circuit board 9 is fixed to the front surface of the chassis 5, the photodiode circuit board 2 is fixed to the rear surface of the chassis 5, and the upper cover 8 is fixed to the upper surface of the chassis 5. The LED circuit board 9 may be secured to the front of the chassis 5 by a second copper post 6. the second copper post 6 may alternatively be an M2 copper post.
Fig. 3 is a top view of a main structure of a multi-channel detection module applied to a rapid food and water quality inspection box according to an embodiment of the present invention, as shown in fig. 3, a plurality of grooves are formed on an upper surface of a frame 5, a cuvette 14 is inserted into each groove, and after the cuvette 14 is inserted into the groove of the frame 5, the cuvette is pressed close to one side of the groove under the action of a first elastic sheet 7 and a second elastic sheet 12;
fig. 2 is the embodiment of the utility model provides a be applied to food and quality of water quick test case's multichannel detection module's major structure front view, as shown in fig. 2, frame 5 openly is provided with a plurality of recesses, places an optical filter 10 in each recess, and optical filter 10 is put into behind the recess and is fixed through optical filter clamp plate 11 and frame 5.
The LED13 is integrated onto the LED circuit board 9 and the photodiode 15 is integrated onto the photodiode circuit board 2.
Based on any of the above embodiments, further, the four vertical surfaces of the cuvette 14 are respectively composed of transparent glass and ground glass alternately, and after the cuvette 14 is inserted into the groove of the rack 5, the two transparent glass surfaces respectively face the photodiode circuit board 2 and the LED circuit board 9.
Based on any of the above embodiments, further, the liquid to be tested in the cuvette 14 occupies more than half of the total capacity of the cuvette 14.
Based on any of the above embodiments, further, the number of the LEDs 13 included in each detection unit is 3, and the detection units are arranged and integrated on the LED circuit board 9 along the vertical direction.
Each detection unit includes 3 photodiodes 15, which are arranged and integrated on the photodiode circuit board 2 in the vertical direction.
As shown in fig. 2, each detection unit includes 3 LEDs 13, and is integrated on the LED circuit board 9 in a vertical arrangement.
Each detection unit includes 3 photodiodes 15, which are arranged and integrated on the photodiode circuit board 2 in the vertical direction.
Based on any of the above embodiments, further, the LEDs 13 on the LED circuit board 9 penetrate into the inside of the filter pressing plate 11, and the LED circuit board 9 and the filter pressing plate 11 are attached together.
Based on any of the above embodiments, further, the photodiode 15 on the photodiode circuit board 2 extends into the inside of the chassis 5, and the photodiode circuit board 2 is attached to the back surface of the chassis 5.
Fig. 4 is the rear view of the main structure of the multi-channel detection module applied to the quick food and water quality inspection box provided by the embodiment of the present invention, as shown in fig. 2 and 4, 3 LEDs 13 and photodiodes 15 are respectively integrated on the LED circuit board 9 and the PD circuit board 2 on the vertical row of each detection channel. The optical filter 10 is installed inside the frame 5 and fixed with the frame 5 through the optical filter pressing plate 11, after the LED circuit board 9 is fixed with the frame 5 through the M2 copper column 6, the LED13 on the LED circuit board 9 extends into the inside of the optical filter pressing plate 11, and the LED circuit board 9 and the optical filter pressing plate 11 are attached together. Similarly, the PD15 on the PD circuit board 2 also extends into the inside of the chassis 5, and the PD circuit board 2 is attached to the surface of the chassis 5, so that the external light source cannot irradiate the inside, and the light-shielding effect can be achieved.
Based on any of the above embodiments, further, a circular hole is disposed inside the housing 5 between the LED13 and the photodiode 15, and the light emitted from the LED13 is irradiated to the center of the photodiode 15 through the circular hole.
Based on any embodiment above, further, the diameter of the circular hole is greater than 1mm and less than 2 mm.
Based on any embodiment above, further, the diameter of the round hole is 1.5 mm.
As shown in fig. 4, inside the housing 5, a circular hole having a diameter larger than 1mm and smaller than 2mm, for example, set to 1.5mm, is provided between the LED13 and the PD15, and light propagation can be performed, which can be regarded approximately as a parallel light. The detection precision of the PD15 is highest in the middle and worst in four sides, and the round hole with the diameter of 1.5mm can ensure that the light intensity emitted by the LED13 is strong enough, and the area of parallel light hitting the center of the PD15 is small enough, so that the detection precision is improved greatly.
Fig. 5 is the utility model provides an optical system who is applied to multichannel detection module of food and quick inspection box of quality of water detects schematic diagram, as shown in fig. 5, LED13 sends polychromatic light, becomes the monochromatic light of bandwidth 3nm after light filter 10 filters, and monochromatic light sees through cell 14 and is received by PD15 after being absorbed a part, then turns into the signal of telecommunication, calculates through backstage integral and reachs absorbance.
The embodiment of the utility model provides a be applied to multichannel detection module of food and quick inspection case of quality of water, simple structure, convenient operation, the LED of a plurality of different wave bands detects the lamp welding on a circuit board, and the integrated level is very high, makes machine small in size, and weight is very light, the installation and debugging of being convenient for, reduction in production cost and improvement packaging efficiency etc.. The position is relatively fixed after the cuvette is inserted into the groove, so that the influence on the detection value due to the detection position difference is avoided. The cell inserts the detection that can carry out 3 different wave bands behind the recess of frame, has also reduced the wearing and tearing on surface when the consumptive material cell repeatedly plugs when improving detection efficiency, has improved the rate of utilization of consumptive material cell and has reduced the detection cost. The design can detect samples in any channel through software control, so that the detection time is greatly shortened, and the detection efficiency is improved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (9)
1. A multi-channel detection module applied to a quick food and water quality inspection box is characterized by comprising a photodiode circuit board, a bottom plate, a rack, an upper cover, an LED circuit board and a plurality of channel detection units;
each detection unit comprises a first elastic sheet, an optical filter pressing plate, a second elastic sheet, an LED, a cuvette and a photodiode;
the bottom plate is fixed on the bottom surface of the frame, the LED circuit board is fixed on the front surface of the frame, the photodiode circuit board is fixed on the back surface of the frame, and the upper cover is fixed on the upper surface of the frame;
the upper surface of the rack is provided with a plurality of grooves, a cuvette is inserted into each groove, and the cuvette is close to one side of the groove under the action of the first elastic sheet and the second elastic sheet after being inserted into the grooves of the rack;
the front surface of the frame is provided with a plurality of grooves, each groove is internally provided with an optical filter, and the optical filters are fixed with the frame through an optical filter pressing plate after being placed in the grooves;
the LEDs are integrated onto an LED circuit board and the photodiodes are integrated onto a photodiode circuit board.
2. The multi-channel detection module applied to the food and water quality rapid detection box according to claim 1, wherein four vertical surfaces of the cuvette are respectively composed of transparent glass and wool glass in an alternating manner, and two transparent glass surfaces of the cuvette inserted into the groove of the rack are respectively opposite to the photodiode circuit board and the LED circuit board.
3. The multi-channel detection module applied to the rapid food and water quality inspection box according to claim 2, wherein the liquid to be detected in the cuvette accounts for more than half of the total capacity of the cuvette.
4. The multi-channel detection module applied to the food and water quality rapid inspection box according to claim 3, wherein each detection unit comprises 3 LEDs, and the LEDs are arranged and integrated on the LED circuit board along the vertical direction;
the number of the photodiodes contained in each detection unit is 3, and the photodiodes are arrayed and integrated on the photodiode circuit board along the vertical direction.
5. The multi-channel detection module applied to the food and water quality rapid inspection box according to claim 4, wherein the LED on the LED circuit board is inserted into the filter pressing plate, and the LED circuit board and the filter pressing plate are adhered together.
6. The multi-channel detection module applied to the food and water quality rapid inspection box according to claim 5, wherein the photodiode on the photodiode circuit board is deep inside the rack, and the photodiode circuit board is attached to the back surface of the rack.
7. The multi-channel detection module applied to the rapid food and water quality inspection box according to claim 6, wherein a circular hole is formed between the LED and the photodiode inside the frame, and light emitted from the LED passes through the circular hole and irradiates the center of the photodiode.
8. The multi-channel detection module applied to the food and water quality rapid inspection box according to claim 7, wherein the diameter of the round hole is more than 1mm and less than 2 mm.
9. The multi-channel detection module applied to the food and water quality rapid inspection box according to claim 8, wherein the diameter of the round hole is 1.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020066836.2U CN211528206U (en) | 2020-01-13 | 2020-01-13 | Multi-channel detection module applied to quick food and water quality inspection box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020066836.2U CN211528206U (en) | 2020-01-13 | 2020-01-13 | Multi-channel detection module applied to quick food and water quality inspection box |
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| Publication Number | Publication Date |
|---|---|
| CN211528206U true CN211528206U (en) | 2020-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020066836.2U Active CN211528206U (en) | 2020-01-13 | 2020-01-13 | Multi-channel detection module applied to quick food and water quality inspection box |
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| Country | Link |
|---|---|
| CN (1) | CN211528206U (en) |
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- 2020-01-13 CN CN202020066836.2U patent/CN211528206U/en active Active
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