Test fixture for testing impedance of electrode by using conductive carbon film

Abstract

The utility model discloses a test fixture for testing electrode impedance by adopting a conductive carbon film. The test fixture comprises a base, a controller, a mounting rack, a test plate, a movable seat, a driving mechanism, an electrode tip and a material pressing head, the conductive carbon film is attached to the test plate, the test plate is matched with the material pressing head to be arranged on the movable seat and moves back and forth along with the movable seat, the position of the material pressing head corresponds to the position of the conductive carbon film, so that the two electrodes and the conductive carbon film are attached together through the material pressing head during detection, and conduction is achieved. After the detection is completed, cleaning and drying processes are not needed, so that the detection process is more convenient, meanwhile, a user does not need to worry that the electrode impedance is increased due to the fact that the electrode is corroded by a residual solution, the dry detection method can carry out long-time multiple detection, a new conductive carbon film does not need to be replaced in the detection process, and the use cost is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the field of electrode impedance testing technology, in particular to a testing tool for testing electrode impedance using a conductive carbon film. Background Art

[0002] In a circuit, the effect of an object on the flow of current is called resistance. Except for superconductors, all substances have resistance, but the resistance value is different. Substances with low resistance are called good conductors, such as metals; and substances with extremely high resistance are called insulators, such as wood and plastic. In addition, there is a substance in between the two, called a semiconductor. A superconductor is a substance with zero resistance. The superconductors that have been discovered so far require that their resistivity is zero under sufficiently low temperature and weak magnetic field conditions. The electrodes need to be tested for impedance before processing and assembly.

[0003] Existing electrode impedance detection fixtures mostly use a wet saturated NaCl detection method when performing detection, which uses a NaCl solution to perform impedance testing. However, after this impedance test, the electrode needs to be cleaned and dried to remove the NaCl solution remaining on the electrode, making the detection process more troublesome. If the residual liquid is not removed cleanly, the residual solution will also corrode the electrode surface coating, thereby increasing the impedance. Moreover, after a period of testing, a new NaCl solution needs to be replaced to ensure the stability of the test results, resulting in increased use costs. Therefore, it is necessary to study a new technical solution to solve the above problems. Utility Model Content

[0004] In view of this, the utility model aims to address the deficiencies in the prior art, and its main purpose is to provide an impedance test fixture that uses a conductive carbon film to test electrodes, which can effectively solve the problems of the existing electrode impedance test fixture, such as cumbersome detection process, easy corrosion of electrodes, and high cost of use.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A test fixture for electrode impedance testing using a conductive carbon film comprises a base, a controller, a mounting frame, a test board, a movable seat, a driving mechanism, an electrode head and a pressing head; the controller is arranged on the base; the mounting frame is arranged on the base, and a mounting slot for installing external wires is provided on the mounting frame, and two detection slots symmetrically arranged on the left and right are provided on the mounting frame; the test board is arranged on the mounting frame and is located below the detection slot, and a conductive carbon film is attached to the test board; the movable seat can be movably arranged on the base back and forth and is located beside the mounting frame; the driving mechanism is arranged on the movable seat and drives the movable seat to move back and forth, and the driving mechanism is connected to the controller; the electrode head is arranged on the movable seat and moves back and forth with the movable seat, and there are two electrode heads, and the two electrode heads correspond to the positions of the two detection slots, and the electrode head is connected to an external multimeter; the pressing head is arranged on the movable seat and moves back and forth with the movable seat, and the pressing head corresponds to the position of the conductive carbon film.

[0007] As a preferred solution, a bracket is provided on the base, and a mounting cavity for mounting an external meter is provided on the bracket.

[0008] As a preferred solution, the base is provided with a slide rail extending forward and backward, and the movable seat is provided with a slide seat cooperating with the slide rail. The movable seat moves back and forth along the slide rail through the cooperation between the slide seat and the slide rail.

[0009] As a preferred solution, a limit block is provided in each detection slot, and the two limit blocks have the same height.

[0010] As a preferred embodiment, the mounting frame includes a first mounting plate and a second mounting plate, the mounting groove is integrally formed inwardly from the outer surface of the first mounting plate, and the mounting groove extends up and down, the second mounting plate is attached to the outer surface of the first mounting plate and covers the opening of the mounting groove, and the aforementioned detection groove is arranged on the second mounting plate.

[0011] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0012] A conductive carbon film is attached to the test plate, and a pressing head is set on a movable seat and moves back and forth with the movable seat. The pressing head corresponds to the position of the conductive carbon film, so that the two electrodes are attached to the conductive carbon film through the pressing head during detection, thereby achieving conduction. It adopts a dry detection method, and there is no need to carry out cleaning and drying processes after the detection is completed, making the detection process more convenient. At the same time, there is no need to worry about the residual solution corroding the electrode and causing an increase in the electrode impedance. Moreover, the dry detection method can carry out long-term and multiple detections, and there is no need to replace a new conductive carbon film during the detection process, which effectively reduces its use cost.

[0013] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of a preferred embodiment of the utility model;

[0015] Figure 2 It is a partial assembly diagram of a preferred embodiment of the utility model;

[0016] Figure 3 It is another partial assembly diagram of a preferred embodiment of the utility model.

[0017] Description of the accompanying drawings:

[0018] 10. Base 101. Installation cavity

[0019] 11. Bracket 12. Slide rail

[0020] 20. Controller 30. Mounting frame

[0021] 301, installation slot 302, detection slot

[0022] 31. Limit block 32. First mounting plate

[0023] 33. Second mounting plate 40. Test plate

[0024] 41. Conductive carbon film 50. Movable seat

[0025] 51. Slide 60. Driving mechanism

[0026] 70. Electrode head 80. Pressing head. DETAILED DESCRIPTION

[0027] Please refer to Figures 1 to 3 As shown, it shows the specific structure of the preferred embodiment of the utility model, which includes a base 10, a controller 20, a mounting frame 30, a test plate 40, a movable seat 50, a driving mechanism 60, an electrode head 70 and a pressing head 80.

[0028] The controller 20 is arranged on the base 10; in the present embodiment, the base 10 is provided with a bracket 11, and the bracket 11 is provided with an installation cavity 101 for installing an external multimeter, so as to facilitate the installation and use of the external multimeter; the base 10 is provided with a slide rail 12 extending forward and backward.

[0029] The mounting frame 30 is arranged on the base 10, and an installation groove 301 for installing external wires is opened on the mounting frame 30, and two detection grooves 302 arranged symmetrically on the left and right are arranged on the mounting frame 30; in the present embodiment, each detection groove 302 is provided with a limit block 31, and the two limit blocks 31 have the same height, and the limit block 31 is used to limit the height of one end of the electrode, so as to ensure the contact process between the electrode head 70 and the detection head at one end of the electrode; the mounting frame 30 includes a first mounting plate 32 and a second mounting plate 33, and the mounting groove 301 is integrally formed inwardly by the outer surface of the first mounting plate 32, and the mounting groove 301 extends up and down, and the second mounting plate 33 is attached to the outer surface of the first mounting plate 32 and covers the opening of the mounting groove 301; the detection groove 302 is arranged on the second mounting plate 33.

[0030] The test board 40 is set on the mounting frame 30 and is located below the detection slot 302. A conductive carbon film 41 is attached to the test board 40, so that the impedance detection is completed by the conductive carbon film 41 instead of the existing saturated NaCl solution. After the detection, there is no need for cleaning and drying processes, which not only simplifies the detection process, but also eliminates the need to replace the solution, thereby reducing the cost of use.

[0031] The movable seat 50 can be movably arranged on the base 10 back and forth and is located beside the mounting frame 30; in the present embodiment, a sliding seat 51 cooperating with the slide rail 12 is arranged on the movable seat 50, and the movable seat 50 can move back and forth along the slide rail 12 through the cooperation between the sliding seat 51 and the slide rail 12, so that the movement process of the movable seat 50 is smoother.

[0032] The driving mechanism 60 is disposed on the movable seat 50 and drives the movable seat 50 to move back and forth. The driving mechanism 60 is connected to the controller 20 .

[0033] The electrode head 70 is set on the movable seat 50 and moves back and forth with the movable seat 50. There are two electrode heads 70, and the two electrode heads 70 correspond to the positions of the two detection slots 302. One end of the electrode head 70 is connected to an external multimeter, and the other end of the electrode head is in contact with the other end of the electrode in the detection slot 302 for conduction.

[0034] The pressing head 80 is disposed on the movable seat 50 and moves back and forth with the movable seat 50 . The pressing head 80 corresponds to the position of the conductive carbon film 41 . The pressing head is used to press the other end of the electrode so that the other end of the electrode contacts and conducts with the conductive carbon film 41 .

[0035] The working principle of this embodiment is described in detail as follows:

[0036] During operation, first connect one end of the electrode head 70 to the external multimeter, then install the two electrodes to be tested into the mounting groove 301, and make one end of the electrode extend into the detection groove 302, and limit the height through the limit block 31, and at the same time, the other end of the electrode extends into the side of the conductive carbon film 41, and then the controller 20 controls the driving mechanism 60 to work, and the driving mechanism 60 drives the movable seat 50 to move toward the mounting frame 30 until the other end of the electrode head 70 extends into the detection groove 302 and contacts and conducts with one end of the electrode to be tested, and at the same time, the pressing head 80 presses the other end of the electrode to be tested, and makes the other end of the electrode to be tested contact and conduct with the conductive carbon film 41, and then the impedance detection process is completed through the multimeter. After the detection is completed, the driving mechanism 60 drives the movable seat 50 to reset.

[0037] The design focus of the utility model is that a conductive carbon film is attached to the test plate, and a pressing head is arranged on a movable seat and moves back and forth with the movable seat. The pressing head corresponds to the position of the conductive carbon film, so that the two electrodes are attached to the conductive carbon film through the pressing head during detection, thereby achieving conduction. It adopts a dry detection method, and no cleaning and drying processes are required after the detection is completed, making the detection process more convenient. At the same time, there is no need to worry about the residual solution corroding the electrode and causing an increase in the electrode impedance. Moreover, the dry detection method can perform long-term and multiple detections, and there is no need to replace a new conductive carbon film during the detection process, which effectively reduces its use cost.

[0038] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An impedance test fixture using a conductive carbon film test electrode, characterized in that: It includes a base, a controller, a mounting frame, a test plate, a movable seat, a driving mechanism, an electrode head and a pressing head; the controller is arranged on the base; the mounting frame is arranged on the base, and an installation slot for installing external wires is opened on the mounting frame, and two detection slots symmetrically arranged on the left and right are arranged on the mounting frame; the test plate is arranged on the mounting frame and is located below the detection slot, and a conductive carbon film is attached to the test plate; the movable seat can be movably arranged on the base back and forth and is located on the side of the mounting frame; the driving mechanism is arranged on the movable seat and drives the movable seat to move back and forth, and the driving mechanism is connected to the controller; the electrode head is arranged on the movable seat and moves back and forth with the movable seat, and there are two electrode heads, and the two electrode heads correspond to the positions of the two detection slots, and the electrode head is connected to an external multimeter; the pressing head is arranged on the movable seat and moves back and forth with the movable seat, and the pressing head corresponds to the position of the conductive carbon film.

2. The impedance test fixture using a conductive carbon film test electrode according to claim 1, characterized in that: A bracket is arranged on the base, and an installation cavity for installing an external meter is arranged on the bracket.

3. The impedance test fixture using a conductive carbon film test electrode according to claim 1, characterized in that: The base is provided with a slide rail extending forward and backward, and the movable seat is provided with a slide seat matched with the slide rail. The movable seat moves back and forth along the slide rail through the cooperation between the slide seat and the slide rail.

4. The impedance test fixture using a conductive carbon film test electrode according to claim 1, characterized in that: A limit block is arranged in each detection slot, and the two limit blocks have the same height.

5. The impedance test fixture using a conductive carbon film test electrode according to claim 1, characterized in that: The mounting frame includes a first mounting plate and a second mounting plate, the mounting groove is integrally formed inwardly from the outer surface of the first mounting plate, and the mounting groove extends up and down, the second mounting plate is attached to the outer surface of the first mounting plate and covers the opening of the mounting groove, and the aforementioned detection groove is arranged on the second mounting plate.

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