CN216926675U - Electrochemical gas sensor array - Google Patents

Abstract

The utility model discloses an electrochemical gas sensor array, which comprises a plurality of encapsulated aluminum boxes, air pipes, aviation plugs, four-core wires and neutral wire boxes. The rear surface of the encapsulated aluminum box is connected with an aviation plug, and the aviation plug is connected with a neutral box through a four-core wire. One end of the neutral box is provided with a first connection line and a second connection line. The first connection line A DC power supply is connected to the upper part, and a USB connector is connected to the second connection line; the electrochemical gas sensor array in the utility model can identify and detect a variety of target gases at the same time. A variety of toxic and harmful gases can be simultaneously identified and detected through one detection, which solves the problem that a gas sensor array capable of simultaneously identifying and detecting multiple gases has not been commercialized in the prior art.

Description

An electrochemical gas sensor array

technical field

The utility model belongs to the technical field of gas sensors, in particular to an electrochemical gas sensor array.

Background technique

Due to its ability to quantitatively detect various gases in the environment, various types of detection gases, small size, high sensitivity, low measurement lower limit, strong anti-interference ability, and can be used for on-site detection, the electrochemical gas sensor occupies half of the gas sensor. It has been widely used in environmental protection, industry, security inspection, food testing, national defense and other fields.

The toxic and harmful gases sometimes appear in the form of one gas, but sometimes several gases appear at the same time. If it is a gas sensor, it cannot accurately identify all the toxic and harmful gases, so there may be endless elimination of evil. Fish slipping through the net. At present, the existing technical products are all single-variety gas sensors or gas sensors. The gas sensor array products that can identify and detect multiple gases at the same time have not been commercialized. For this reason, we propose an electrochemical gas sensor array.

Utility model content

The purpose of the present utility model is to provide an electrochemical gas sensor array, so as to solve the problem that the existing technical products proposed in the above background technology are mostly single-variety gas sensing elements or gas sensors, which can identify and detect multiple gases at the same time. The problem that gas sensor array products have not yet been commercialized.

In order to achieve the above purpose, the utility model provides the following technical solutions: an electrochemical gas sensor array, comprising a plurality of encapsulated aluminum boxes, air pipes, aviation plugs, four-core wires and neutral wire boxes, and the plurality of encapsulated aluminum boxes pass through The trachea are connected in series, and the rear surface of each of the encapsulated aluminum boxes is connected with an aviation plug, and the aviation plug is connected to the center line box through a four-core wire, and one end of the center line box is provided with a first connection line and a second connection. A DC power supply is connected to the first connection line, a USB connector is connected to the second connection line, a top cover is installed on the top surface of the aluminum packaging box, and a circuit board is packaged on the inner side of the packaging aluminum box , and a gas sensor and an adapter are installed on the circuit board, one end of the aviation plug is inserted into the inner side of the packaging aluminum box, and the aviation plug and the adapter are connected by a second four-core wire, the top cover and the packaging aluminum There is a disassembly and assembly structure between the boxes.

Preferably, the disassembly and assembly structure includes a U-shaped clamp, a side block, a rectangular chute and a rotating base block, two U-shaped clamps are provided on the top of the top cover, and both ends of the U-shaped clamp extend respectively to both sides of the packaged aluminum box, and both ends of the U-shaped clamp are connected with side blocks, the side blocks are rotated and arranged on the side of the packaged aluminum box by rotating the base block, the U-shaped clamp and the side block There is an active connection structure between them.

Preferably, the movable connection structure includes a side slot, an inner slider, a spring and a connection block, two side slots are symmetrically opened inside the side block relative to the inner side of the rectangular chute, and the inside of the side slot is movably arranged There is an inner slider, a spring is connected between the inner slider and the inner wall of the top end of the side groove, a strip-shaped notch communicated with the rectangular chute is opened on the inner wall of one side of the side slot, and a connection is arranged in the strip-shaped notch The two ends of the connecting block are respectively fixed with the inner slider and the U-shaped clamp.

Preferably, a guide rod is also fixed on the inner side of the side groove, and both the inner slider and the spring are movably sleeved on the surface of the guide rod.

Preferably, a rotating base rod with a T-shaped cross-section is fixed on both sides of the aluminum packaging box, and the rotating base block is rotatably sleeved on the rotating base rod.

Preferably, the two sides of the aluminum packaging box are provided with nozzles, and the size of the nozzles is adapted to the trachea.

Preferably, a circular sealing ring is provided on the bottom surface of the top cover, and the circular sealing ring is in close contact with the inner wall of the top end of the packaging aluminum box.

Compared with the prior art, the beneficial effects of the present utility model are:

1. The electrochemical gas sensor array in the present utility model can identify and detect a variety of target gases at the same time, and through a clever, reasonable and simple design, it can simultaneously identify and detect a variety of toxic and harmful gases through one detection. , which solves the problem that the gas sensor array that can identify and detect multiple gases at the same time has not been commercialized in the prior art.

2. Through the disassembly and assembly structure set, the disassembly and assembly method of the top cover is more convenient and quicker, which brings convenience to the subsequent replacement of the gas sensor inside the packaged aluminum box, and optimizes the overall maintenance convenience and disassembly convenience. Subsequent operators bring convenience to the overall maintenance of the sensor array.

Description of drawings

Fig. 1 is the top view of the utility model;

Fig. 2 is a partial enlarged view of area A in Fig. 1 of the utility model;

Fig. 3 is the side view of the utility model packaging aluminum box;

Figure 4 is a side cross-sectional view of the connection between the U-shaped clamp of the present invention and the side block;

In the figure: 1. Encapsulated aluminum box; 2. Air pipe; 3. Aviation plug; 4. Four-core wire; 5. Neutral box; 6. The first connecting wire; 7. The second connecting wire; USB connector; 10, top cover; 11, U-shaped clamp; 12, side block; 13, rectangular chute; 14, rotating base block; 15, side groove; 16, inner slider; 17, spring; 18, guide rod; 19, connecting block.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Example

Please refer to FIGS. 1 to 4 , the present invention provides a technical solution: an electrochemical gas sensor array, comprising a plurality of encapsulated aluminum boxes 1 , air pipes 2 , aviation plugs 3 , four-core wires 4 and neutral wire boxes 5 . The encapsulated aluminum boxes 1 are connected in series through the air pipe 2, the rear surface of each encapsulated aluminum box 1 is connected with an aviation plug 3, and the inside of the encapsulated aluminum box 1 is encapsulated with a circuit board, and a gas sensor and a gas sensor are installed on the circuit board. Adapter, and the gas sensors inside the multiple encapsulated aluminum boxes 1 are different types of gas sensors (each encapsulated aluminum box 1 only encapsulates one specific type of electrochemical gas sensor), such as electrochemical CO gas sensors, electrical Chemical CO ₂ gas sensor and electrochemical NO gas sensor, etc., in order to simultaneously detect a variety of harmful substances in the gas to be measured, one end of the aviation plug 3 is inserted into the inner side of the packaging aluminum box 1, and the aviation plug 3 and the adapter It is connected through the second four-core wire, the four pins of the adapter are inserted into the four holes reserved on the circuit board, and the four pins are soldered on the other side of the circuit board. One end of the core wire is connected to the conversion head, and the other end is connected to the insertion end of the aviation plug 3, so as to achieve the purpose of drawing the electrical signal on the circuit board out of the packaging aluminum box 1, and the aviation plug 3 is connected to the neutral box 5 through the four-core wire 4. , one end of the neutral box 5 is provided with a first connecting wire 6 and a second connecting wire 7, and each four-core wire 4 has four colors in it to show distinction. At the same time, it is fixed at the corresponding position of the input end of the neutral box 5, and the output end of the neutral box 5 leads out four copper wires of corresponding colors. In this way, there are only four wires of different colors leading out through the neutral box 5, and two of them are composed of The first connecting line 6, the first connecting line 6 is connected with a DC power supply 8, which provides the sensor in the aluminum box with the potential required for its operation, and the other two make up the second connecting line 7, and the second connecting line 7 is connected with a The USB connector 9 is responsible for transmitting the electrical signal generated by the gas-sensitive material in the electrochemical gas sensor and the gas reaction to the computer when the gas is in contact with the electrochemical gas sensor for the gas. The top surface of the packaged aluminum box 1 is installed There is a top cover 10 .

In this embodiment, preferably, a dismounting structure is provided between the top cover 10 and the packaging aluminum box 1, and the dismounting structure includes a U-shaped clamp 11, a side block 12, a rectangular chute 13 and a rotating base block 14. The top cover The top of 10 is provided with two U-shaped clamps 11, and the two ends of the U-shaped clamps 11 respectively extend to both sides of the encapsulated aluminum box 1, and both ends of the U-shaped clamps 11 are connected with side blocks 12. The block 12 is rotatably arranged on the side of the encapsulated aluminum box 1 through the rotating base block 14. A movable connection structure is provided between the U-shaped clamp 11 and the side block 12. The movable connection structure includes a side groove 15, an inner slider 16, a spring 17 and In the connecting block 19 , two side grooves 15 are symmetrically opened inside the side block 12 relative to the inner side of the rectangular chute 13 , and an inner slider 16 is movably provided inside the side groove 15 . The inner slider 16 and the top inner wall of the side groove 15 A spring 17 is connected between them, and a strip-shaped notch that communicates with the rectangular chute 13 is opened on one inner wall of the side groove 15, and a connecting block 19 is arranged in the strip-shaped notch, and the two ends of the connecting block 19 are respectively connected with the inner slider 16. It is fixed with the U-shaped clamp 11 , which makes the disassembly and assembly of the top cover 10 more convenient and quicker, and brings convenience to the subsequent replacement of the gas sensor inside the packaged aluminum box 1 .

In this embodiment, preferably, a guide rod 18 is also fixed on the inner side of the side groove 15, and the inner slider 16 and the spring 17 are movably sleeved on the surface of the guide rod 18, so that the inner slider 16 can be stably in the side groove 15. of the internal slide.

In this embodiment, preferably, a rotating base rod with a T-shaped cross-section is fixed on both sides of the aluminum packaging box 1, and the rotating base block 14 is rotatably sleeved on the rotating base rod, so that the rotating base block 14 can be smoothly The side of the encapsulated aluminum box 1 is rotated.

In this embodiment, preferably, both sides of the aluminum packaging box 1 are provided with nozzles, and the nozzle size is adapted to the trachea 2 for insertion of the trachea 2 .

In this embodiment, preferably, the bottom surface of the top cover 10 is provided with a circular sealing ring, the circular sealing ring is a silicone material member, and the circular sealing ring is in close contact with the top inner wall of the packaging aluminum box 1, and is used for the top cover. 10 Seal at the junction with the encapsulated aluminum box 1.

The model of the DC power supply 8 in the present invention is RXW-0698-9V3AB.

The working principle and use process of the utility model: when the electrochemical gas sensor array is in use, it is necessary to calibrate each gas sensor inside a plurality of encapsulated aluminum boxes 1 in standard gas in the early stage, and thus obtain a working curve, using The electrical signal of the electrochemical gas sensor is proportional to the gas concentration, and then the toxic and harmful gases can be detected. When detecting, first plug in the DC power supply 8, then connect the USB connector 9 to the external computer, and then send the gas to be tested to the outside world. Enter the inside of the gas pipe 2, so that the gas to be tested can enter the interior of the plurality of encapsulated aluminum boxes 1 through the gas pipe 2 in turn and contact with each gas sensor inside each encapsulated aluminum box 1, and each gas sensor will pass the detection data through the aviation plug 3, The four-core line 4, the second connecting line 7 and the USB connector 9 are transmitted to the external computer, and the detection data will be continuously displayed on the computer, realizing the simultaneous identification and detection of a variety of toxic and harmful gases;

When the top cover 10 needs to be removed and the gas sensor inside the encapsulated aluminum box 1 needs to be replaced, it is only necessary to lift up the U-shaped clamp 11 first, so that the U-shaped clamp 11 carries the inner slider 16 through the connecting block 19 Move up, and make the spring 17 gradually compressed until the U-shaped clamp 11 no longer presses the top cover 10, then rotate the U-shaped clamp 11, so that the U-shaped clamp 11 rotates from the top of the top cover 10 to One side of the aluminum box 1 is sealed, and the top cover 10 is no longer limited. At this time, the top cover 10 is directly moved upward to complete the disassembly of the top cover 10 and the packaged aluminum box 1, so that the packaged aluminum box 1 can be separated. The inner gas sensor is repaired and replaced. When the top cover 10 is put back again, first cover the top cover 10 on the top of the packaging aluminum box 1, and make the loop seal enter the inner side of the packaging aluminum box 1 and the packaging aluminum box 1. At this time, the U-shaped clamp 11 is pulled up and rotated, so that the U-shaped clamp 11 is rotated to the top of the top cover 10, and then the U-shaped clamp 11 is loosened, so that the spring 17 pushes the inner slider 16 Push back and reset the U-shaped clamp 11 , and then the U-shaped clamp 11 can be used to complete the pressing and fixing of the top cover 10 , thereby realizing the rapid installation of the top cover 10 .

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles of the invention Variations, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. An electrochemical gas sensor array, characterized by: the packaging structure comprises a plurality of packaging aluminum boxes (1), a gas pipe (2), an aviation plug (3), a four-core wire (4) and a central wire box (5), wherein the packaging aluminum boxes (1) are connected in series through the gas pipe (2), the rear surface of each packaging aluminum box (1) is connected with the aviation plug (3), the aviation plug (3) is connected with the central wire box (5) through the four-core wire (4), one end of the central wire box (5) is provided with a first connecting wire (6) and a second connecting wire (7), the first connecting wire (6) is connected with a direct current power supply (8), the second connecting wire (7) is connected with a USB connector (9), the top surface of the packaging aluminum box (1) is provided with a top cover (10), the inner side of the packaging aluminum box (1) is packaged with a circuit board, the circuit board is provided with a gas sensor and an adapter, one end of the aviation plug (3) is inserted into the inner side of the packaging aluminum box (1), and the aviation plug (3) is connected with the adapter through a second four-core wire, and a dismounting mechanism is arranged between the top cover (10) and the packaging aluminum box (1).

2. An electrochemical gas sensor array according to claim 1, wherein: dismouting mechanism includes U-shaped clamp (11), side piece (12), rectangle spout (13) and rotatory base block (14), the top of top cap (10) is provided with two U-shaped clamp (11), and the both ends of U-shaped clamp (11) extend to the both sides of encapsulation aluminium box (1) respectively, just the both ends of U-shaped clamp (11) all are connected with side piece (12), side piece (12) are through rotatory side that sets up at encapsulation aluminium box (1) of rotatory base block (14), be equipped with swing joint structure between U-shaped clamp (11) and side piece (12).

3. An electrochemical gas sensor array according to claim 2, wherein: the movable connection structure comprises side grooves (15), an inner sliding block (16), springs (17) and connecting blocks (19), wherein the two side grooves (15) are symmetrically formed in the inner portion of each side block (12) relative to the inner side of the corresponding rectangular sliding groove (13), the inner sliding block (16) is movably arranged in the side grooves (15), the springs (17) are connected between the inner sliding blocks (16) and the inner walls of the top ends of the side grooves (15), a strip-shaped notch communicated with the rectangular sliding groove (13) is formed in the inner wall of one side of each side groove (15), the connecting blocks (19) are arranged in the strip-shaped notch, and the two ends of each connecting block (19) are fixed with the inner sliding block (16) and the U-shaped clamp (11) respectively.

4. An electrochemical gas sensor array according to claim 3, wherein: and a guide rod (18) is further fixed on the inner side of the side groove (15), and the inner sliding block (16) and the spring (17) are movably sleeved on the surface of the guide rod (18).

5. An electrochemical gas sensor array according to claim 3, wherein: the rotary base rods with T-shaped sections are fixed on the surfaces of the two sides of the packaging aluminum box (1), and the rotary base blocks (14) are rotatably sleeved on the rotary base rods.

6. An electrochemical gas sensor array according to claim 1, wherein: the pipe orifices are formed in the surfaces of the two sides of the packaging aluminum box (1), and the sizes of the pipe orifices are matched with those of the air pipes (2).

7. An electrochemical gas sensor array according to claim 1, wherein: the bottom surface of the top cover (10) is provided with a clip-shaped sealing ring, and the clip-shaped sealing ring is tightly attached to the inner wall of the top end of the packaging aluminum box (1).

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