CN211318296U - Electrochemical microelectrode performance evaluation jig matched with USB interface - Google Patents
Electrochemical microelectrode performance evaluation jig matched with USB interface Download PDFInfo
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- CN211318296U CN211318296U CN201921428582.8U CN201921428582U CN211318296U CN 211318296 U CN211318296 U CN 211318296U CN 201921428582 U CN201921428582 U CN 201921428582U CN 211318296 U CN211318296 U CN 211318296U
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Abstract
The utility model relates to an electrochemistry microelectrode performance evaluation tool of cooperation USB interface, include: microelectrode, base plate, upper cover plate. The microelectrode plate is embedded into the substrate and is buckled with the upper cover plate, the back dam of the upper cover plate is tightly contacted with the microelectrode, the upper cover plate and the substrate are fixed through three metal screws, and electric conduction is realized; the upper cover plate, the substrate and the area between the box dams form an electrolyte pool; the microelectrode is connected with the upper cover plate through a spring thimble, connected with the substrate through a metal screw and finally connected to a USB interface contact piece of the substrate; and the third electrode on the back of the upper cover plate is connected with the substrate through an upper cover plate connecting line, a metal screw and a substrate USB interface contact piece. The tool of this patent design need not external anchor clamps, through encapsulating the micro-electrode in the tool, in the accessible USB interface inserts electrochemical analysis instrument USB interface, three electrode signal linked to each other with the instrument, can carry out electrochemical analysis work.
Description
Technical Field
The utility model relates to an electrochemistry analytical instrument field, concretely relates to small electrode is applied to electrochemistry analytical instrument's device packaging structure, an electrochemistry microelectrode performance evaluation tool of cooperation USB interface.
Background
Sensors based on the electrochemical principle generally use an electrochemical analysis method for detection, which consists of an electrolyte solution and two electrodes immersed therein, which are connected to an external circuit. Redox reactions occur at the two electrodes and electrons flow from one electrode to the other through an external circuit connecting the two electrodes. The concentration of the substance to be measured is converted into an electrical parameter for measurement based on the relationship between the electrochemical properties of the solution (e.g., electrode potential, current, conductance, electric quantity, etc.) and the chemical or physical properties of the substance to be measured (e.g., chemical composition, concentration, ratio of oxidized state to reduced state of electrolyte solution, etc.). In order to eliminate the large error of electrode potential caused by polarization current, a three-electrode system is introduced, and a reference electrode for stabilizing a working electrode is introduced on the basis of a common two-electrode system (a working electrode and a counter electrode).
In recent years, sensors based on electrochemical principles are widely used, electrodes, electrolytes, electrolyte cells and the like in the electrochemical sensors are miniaturized devices, and the tiny size increases difficulty for electrochemical analysis, for example, generally, an electrochemical analysis device can connect a lead with an electrode by a wire clamp or a welding mode; however, it becomes extremely difficult to construct an electrolyte cell for miniaturized electrodes and to lead the electrolyte cell from the electrode to an electrochemical analysis device.
Therefore, a jig is particularly needed, wherein a miniaturized electrode is placed in the jig, an electrolyte cell can be constructed on the miniaturized electrode, a reference electrode can be constructed, the electrode can be led out in a low-impedance manner, and a universal USB interface can be used as a lead-out interface; by the aid of the jig, electrochemical analysis and research on the micro device can be conveniently realized.
In summary, in order to meet the application requirements of the miniaturized electrode, an electrochemical analysis fixture capable of placing the miniaturized electrode and ensuring the accuracy and performance of the electrode needs to be developed.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides an electrochemical microelectrode performance evaluation fixture with a USB interface, so as to solve the technical problems in the prior art.
The technical solution of the utility model is that, an electrochemistry microelectrode performance evaluation tool of cooperation USB interface is provided, include: microelectrode, base plate, upper cover plate.
The microelectrode is provided with a first electrode and a second electrode, wherein the first electrode is a working electrode, the second electrode is a counter electrode, and the microelectrode electrode is embedded and arranged on the substrate in an upward way;
grooving the surface of the substrate for embedding and mounting a microelectrode; the thickness of the substrate is designed according to a USB interface, a USB interface conductive contact piece is arranged at the front end of the substrate, and the front end of the substrate can be inserted into the USB interface of an electrochemical analyzer and is electrically communicated with an interface inner contact;
three metallized screw holes are designed on the substrate, and the metallized screw holes are in circuit conduction with the USB interface conductive contact piece;
the upper cover plate is provided with three metallized screw holes, the positions of the metallized screw holes correspond to those of the substrate, metal screws can be installed on the metallized screw holes, the upper cover plate is installed on the substrate through the metal screws, and the metal screws are used for realizing the electrical conduction with the substrate and the microelectrode;
the spring thimble is arranged on the back of the upper cover plate and is communicated with the metal circuit on the surface of the upper cover plate; the mounting position of the spring thimble corresponds to the position of the microelectrode contact point, and the electrical connection between the microelectrode and the upper cover plate is realized through the spring thimble; the spring thimble is connected with a corresponding metal screw through a circuit on the surface of the upper cover plate to realize the electrical conduction between the microelectrode and the conductive contact piece;
a box dam is established on the back surface of the upper cover plate corresponding to the position of the microelectrode, an electrolyte injection hole is designed in the upper cover plate within the range of the box dam, electrolyte is injected through the electrolyte injection hole, and an electrolyte pool is formed by the upper cover plate, the microelectrode and the box dam region;
a third electrode is established on the back of the upper cover plate, is positioned in the electrolyte tank and is used as a reference electrode of the microelectrode; the third electrode is connected with the metal circuit on the surface of the upper cover plate through the metal circuit and is connected with the corresponding metal screw, so that the third electrode is electrically conducted with the conductive contact piece.
Further, the USB interface is a standard Type-A model.
Further, the number of the metallized screw holes is more than or equal to the number of the single electrodes of the electrochemical analysis jig.
Furthermore, the number of the spring thimbles is more than or equal to the number of the electrodes of the microelectrode.
The utility model relates to an electrochemical analysis tool, wherein a microelectrode plate is embedded in a substrate and is locked with an upper cover plate, two spring thimbles on the upper cover plate are communicated with electrode contacts on the microelectrode plate in a contacting manner, a back dam of the upper cover plate is closely contacted with the microelectrode, the upper cover plate and the substrate are fixed through three metal screws, and electrical conduction is realized; injecting electrolyte from an electrolyte injection hole of the upper cover plate to fill the area among the upper cover plate, the substrate and the box dam to form an electrolyte pool, wherein a first electrode and a second electrode on the microelectrode plate and a third electrode on the back of the upper cover plate are all positioned in the electrolyte; the first electrode and the second electrode on the micro-electrode plate are connected with the upper cover plate through spring thimbles, then connected with the substrate through metal screws and finally connected to the substrate USB interface contact piece; and the third electrode on the back of the upper cover plate is connected with the substrate through an upper cover plate connecting line, a metal screw and a substrate USB interface contact piece. The specific structure of the electrochemical fixture designed in this patent can refer to fig. 1.
The tool designed by the patent is inserted into the USB interface of the electrochemical analysis instrument through the USB interface, the electrode plate and the electrolyte tank are contained in the tool, and the three-electrode signal is connected with the instrument, so that the electrochemical analysis work can be carried out.
Compared with the prior art, the utility model has the advantages of it is following:
(1) the electrochemical analysis tool of this patent design has realized the USB interface connection of micro-electrode board with electrochemical analysis instrument, can directly realize data switch on for electrochemical detection is more convenient.
(2) The electrochemical analysis tool of this patent design sets up the box dam at the upper cover plate, constructs the electrolyte cell, injects into alright utilize miniature electrode to carry out electrochemical analysis after the electrolyte, and can dismantle and change the microelectrode, has successfully realized being applied to electrochemical analysis instrument with miniature electrode detection, does not need external anchor clamps.
(3) The electrochemical analysis tool of this patent design constructs the reference electrode in order to carry out electrochemical analysis to miniature electrode at the upper cover plate, structure three electrode system in upper cover plate department, has reduced the device volume by a wide margin, has expanded its range of application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
FIG. 1 is a schematic view of the overall design of an electrochemical analysis fixture according to the present invention;
FIG. 2 is a schematic design diagram of an electrochemical analysis fixture according to the present invention;
FIG. 3 is a schematic diagram of a substrate of the electrochemical analysis tool of the present invention;
FIG. 4 is a schematic view of a two-electrode system microelectrode of the electrochemical analysis device of the present invention;
fig. 5 is a schematic view of the upper cover plate of the electrochemical analysis jig of the present invention.
Illustration of the drawings:
1. a metal screw; 2. a metal thimble; 3. an electrolyte; 4. a box dam; 7. an upper cover plate; 8. a microelectrode; 9. a substrate; 10. An electrolyte injection hole; 12. a first electrode; 13. a second electrode; 14. a third electrode; 15. a substrate screw hole; 16. an electrode plate groove; 17. a conductive contact; 18. a spring thimble; 19. and an upper cover plate screw hole.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention is not limited to only these embodiments. The present invention covers any alternatives, modifications, equivalents, and alternatives falling within the spirit and scope of the present invention.
In the following description of the preferred embodiments of the present invention, specific details are set forth in order to provide a thorough understanding of the present invention, and it will be apparent to those skilled in the art that the present invention may be practiced without these specific details.
The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. It should be noted that the drawings are simplified and in non-precise proportion, and are only used for the purpose of conveniently and clearly assisting in explaining the embodiments of the present invention.
Referring to fig. 2, an implementation manner of the electrochemical analysis tool designed by the present invention is illustrated, including: base plate, microelectrode plate, upper cover plate.
Referring to fig. 3, a groove is cut on a substrate, a microelectrode plate is embedded and installed in the groove, the substrate is provided with 3 metalized screw holes which are respectively connected with an electrode signal of an upper cover plate, one end of the substrate is provided with a USB interface contact piece, and the USB interface contact piece is communicated with the metalized screw holes through a metal circuit on the substrate.
Referring to fig. 4, the microelectrode plate adopts a two-electrode system circuit, which includes a first electrode as a working electrode, a second electrode as a counter electrode, and metallized connection areas at two ends of the electrodes for leading out signals of the two electrodes.
Referring to fig. 5, two metal spring thimbles are installed on the upper cover plate corresponding to the electrode connection region, and a third electrode is established on the back of the upper cover plate; the upper cover plate is provided with 3 metallized screw holes, two metal spring thimbles are respectively connected with two electrodes of the microelectrode through a metal circuit of the upper cover plate in an electric shock manner, and a third electrode on the back of the upper cover plate is connected through the metal screw holes of the metal circuit of the upper cover plate; a dam is established on the back of the upper cover plate corresponding to the microelectrode area.
The micro electrode adopted in the embodiment is a silicon-based interdigital electrode, the line width and the line distance are 1 μm, the electrode size is 6mmx4mm, and the electrode detection cannot be performed through an external clamp, so the micro electrode is packaged into the electrochemical fixture described in the embodiment for performing electrochemical detection.
The electrochemistry tool of this embodiment preparation directly links to each other with the electrochemistry workstation through the USB interface, drips into the liquid that awaits measuring through upper cover plate top electrolyte filling hole, then the direct electrochemistry of realizing of microelectrode inside accessible tool detects to data real-time transmission to electrochemistry detecting instrument.
When electrochemical analysis is needed to be carried out on the microelectrode plate, the microelectrode plate is embedded into the substrate and is buckled with the upper cover plate, two spring thimbles on the upper cover plate are in contact communication with electrode contacts on the microelectrode plate, a box dam on the back of the upper cover plate is in close contact with the microelectrode, the upper cover plate and the substrate are fixed through three metal screws and are electrically conducted, liquid electrolyte is injected from an electrolyte injection hole of the upper cover plate and is filled in the area among the upper cover plate, the substrate and the box dam to form an electrolyte pool, and a first electrode, a second electrode and a third electrode on the back of the upper cover plate are all positioned in the electrolyte; the first electrode and the second electrode on the micro-electrode plate are connected with the upper cover plate through spring thimbles, then connected with the substrate through metal screws and finally connected to the substrate USB interface contact piece; a third electrode on the back of the upper cover plate is connected with the substrate through a connecting line of the upper cover plate, a metal screw and a substrate USB interface contact piece; the tool of the invention is inserted into the USB interface of the electrochemical analysis instrument through the USB interface, the electrode plate and the electrolyte tank are contained in the tool, and the three-electrode signal is connected with the instrument, thus the electrochemical analysis work can be carried out.
The utility model discloses an electrochemical analysis tool can use with the cooperation of electrochemical analysis instrument, has realized the convenient use and the change of small electrode as micro device.
Although the embodiments have been described and illustrated separately, it will be apparent to those skilled in the art that some common techniques may be substituted and integrated between the embodiments, and reference may be made to one of the embodiments not explicitly described, or to another embodiment described.
The above-mentioned specific embodiments have described the technical solutions and advantages of the present invention in detail, it should be understood that the above-mentioned is only the most preferred embodiments of the present invention, and is not used to limit the present invention, any modifications, supplements, equivalent replacements, etc. made within the principle scope of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a cooperation USB interface's electrochemistry microelectrode performance aassessment tool which characterized in that: comprises a microelectrode, a substrate and an upper cover plate;
the microelectrode is provided with a first electrode and a second electrode, wherein the first electrode is a working electrode, the second electrode is a counter electrode, and the microelectrode electrode faces upwards and is embedded and installed on the substrate;
the surface of the substrate is grooved and used for embedding and mounting the microelectrode; the thickness of the substrate is designed according to a USB interface, a USB interface conductive contact piece is installed at the front end of the substrate, and the front end of the substrate can be inserted into the USB interface of an electrochemical analyzer and is electrically conducted with an interface inner contact; a metalized screw hole is designed on the substrate and is in circuit conduction with the USB interface conductive contact piece;
the upper cover plate is provided with a metalized screw hole, the position of the metalized screw hole corresponds to that of the metalized screw hole of the substrate, a metal screw can be installed on the upper cover plate, the upper cover plate is installed on the substrate through the metal screw, and the metal screw is used for realizing the electrical conduction with the substrate and the microelectrode;
the spring ejector pin is arranged on the back surface of the upper cover plate and is communicated with the metal circuit on the surface of the upper cover plate; the spring thimble mounting position corresponds to the microelectrode contact position, and the microelectrode is electrically connected with the upper cover plate through the spring thimble; the spring thimble is connected with the corresponding metal screw through the circuit on the surface of the upper cover plate, so that the microelectrode is electrically conducted with the USB interface conductive contact piece;
a box dam is built on the back surface of the upper cover plate corresponding to the position of the microelectrode, an electrolyte injection hole is designed in the range of the box dam on the upper cover plate, electrolyte is injected through the electrolyte injection hole, and an electrolyte pool is formed by the upper cover plate, the microelectrode and the box dam region;
a third electrode is established on the back surface of the upper cover plate, is positioned in the electrolyte tank and is used as a reference electrode of the microelectrode; the third electrode is connected with the metal circuit on the surface of the upper cover plate through a metal circuit and is connected with the corresponding metal screw, so that the third electrode is electrically conducted with the conductive contact piece.
2. The tool for evaluating the performance of the electrochemical microelectrode matched with the USB interface, according to claim 1, is characterized in that: the USB interface is a standard Type-A model.
3. The tool for evaluating the performance of the electrochemical microelectrode matched with the USB interface, according to claim 1, is characterized in that: the number of the metallized screw holes is more than or equal to the number of the single electrodes of the electrochemical analysis jig.
4. The tool for evaluating the performance of the electrochemical microelectrode matched with the USB interface, according to claim 1, is characterized in that: the number of the spring thimbles is more than or equal to the number of the electrodes of the microelectrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921428582.8U CN211318296U (en) | 2019-08-29 | 2019-08-29 | Electrochemical microelectrode performance evaluation jig matched with USB interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921428582.8U CN211318296U (en) | 2019-08-29 | 2019-08-29 | Electrochemical microelectrode performance evaluation jig matched with USB interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211318296U true CN211318296U (en) | 2020-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921428582.8U Active CN211318296U (en) | 2019-08-29 | 2019-08-29 | Electrochemical microelectrode performance evaluation jig matched with USB interface |
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| Country | Link |
|---|---|
| CN (1) | CN211318296U (en) |
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- 2019-08-29 CN CN201921428582.8U patent/CN211318296U/en active Active
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