Detection device

Abstract

The utility model provides a detection device, which is used for detecting electrical parameters of a dielectric sheet of an electrode array and comprises a mounting seat, a detection seat fixed on the mounting seat and an electrode assembly, the detection seat is provided with a test groove for accommodating a conductive solution, the electrode assembly is provided with a conductive sheet, and the conductive sheet is fixed at the bottom of the detection seat and is in contact with the conductive solution. The electrode array is arranged above the test groove in a mode that a dielectric sheet faces downwards, and the dielectric sheet is in contact with the conductive solution. The testing device can accurately detect the electrical parameters of the dielectric sheet of the electrode array, and can realize nondestructive testing.

Description

TECHNICAL FIELD

[0001] The present application relates to a detection device for detecting the electrical parameters of a dielectric sheet of an electrode array. BACKGROUND

[0002] Tumor electric field therapy is a tumor treatment method that uses an electric field generator to generate an alternating electric field of low intensity, medium-high frequency, which interferes with the mitotic process of tumor cells. Studies have shown that electric field therapy has a significant effect in treating diseases such as glioblastoma, non-small cell lung cancer, and malignant pleural mesothelioma. The electric field applied by this treatment method can affect the aggregation of tubulin, prevent spindle formation, inhibit the mitotic process, and induce apoptosis of cancer cells.

[0003] The existing tumor electric field therapy system mainly includes an electric field generating device for generating alternating electric signals for tumor electric field therapy, an adapter electrically connected to the electric field generating device, and multiple pairs of electrode sheets electrically connected to the electric field generating device through the adapter. The electric field generating device transmits the alternating electric signals for tumor electric field therapy to each pair of electrode sheets through the adapter. Each pair of electrode sheets is attached to the opposite sides of the tumor site of the patient, and then an alternating electric field is applied to the tumor site of the patient through the electrode sheets to perform tumor electric field therapy.

[0004] The electrode array of the electrode sheet is its main functional structure, and the electrode array includes a circuit board and a dielectric sheet electrically connected to the corresponding part of the circuit board. The existing dielectric sheet is generally in the form of a circular sheet. The dielectric sheet is exposed and directly contacts the human body surface. The electrical parameters of the dielectric sheet are the core part that determines the performance of the electrode sheet. The relative permittivity and dielectric loss are two important bases for evaluating the electrical parameters of the dielectric sheet. Therefore, a reliable and convenient detection device and method are needed to detect the electrical parameters of the dielectric sheet.

[0005] Currently, one of the upper surface and the lower surface of the dielectric sheet on the electrode sheet is plated with a metal coating for welding connection with the circuit board, and the other surface is not plated with a metal coating. There are two existing detection methods. One is only for the dielectric sheet with a metal coating on one side. During detection, a layer of flexible conductive material, such as conductive gel, is first attached to the side without a metal coating, and then a metal coating is attached to form a double-sided conductive sheet capacitor. Then the capacitance and resistance are detected by the instrument, and the relative permittivity and dielectric loss are converted. However, this detection device has low detection efficiency, and the precision of the detected capacitance and resistance is not high due to the problem of poor contact of the flexible conductive material with the dielectric sheet or its own high loss. The other detection device is for the dielectric sheet with a metal coating on both sides. During detection, the dielectric sheet is plated with a metal coating on both sides, and then the capacitance and resistance are detected by the instrument. After detection, the metal coating on one side needs to be peeled off because the dielectric sheet only needs to be plated with a metal coating on one side when used in the electrode sheet, and the peeling of the metal coating is relatively difficult. Therefore, this detection method is a destructive detection.

[0006] Therefore, it is necessary to provide a new detection device. Content of the utility model

[0007] The application provides a detection device which is convenient and lossless for detecting the electrical parameters of a dielectric sheet of an electrode array.

[0008] Specifically, the application is implemented by the following technical scheme: a detection device for detecting the electrical parameters of a dielectric sheet of an electrode array, comprising a mounting seat, a detection seat fixed on the mounting seat, and an electrode assembly, the detection seat has a test groove for containing a conductive solution, the electrode assembly has a conductive sheet, the conductive sheet is fixed on the bottom of the detection seat and is in contact with the conductive solution, the electrode array is arranged above the test groove with the dielectric sheet facing downward, and the dielectric sheet is in contact with the conductive solution.

[0009] Further, the mounting seat comprises a base and a top plate fixed on the base, the base is provided with a liquid storage pool for storing the conductive solution and a water pump for guiding the conductive solution in the liquid storage pool into the test groove.

[0010] Further, the mounting seat is provided with an external liquid storage pipe fixed on the top plate and guiding the conductive solution in the liquid storage pool into the test groove under the action of the water pump.

[0011] Further, the detection seat is provided with a liquid storage groove surrounding the test groove, the top side of the test groove is provided with an overflow port for the conductive solution to overflow and flow to the liquid storage groove, and the liquid storage groove is in communication with the liquid storage pool.

[0012] Further, the external liquid storage pipe is provided with a sandwich layer and a vacuum extraction port for extracting gas in the sandwich layer.

[0013] Further, the mounting seat is provided with a liquid storage pipe cover for plugging the top opening of the external liquid storage pipe.

[0014] Further, the conductive sheet is provided with a first temperature measuring rod, and the first temperature measuring rod extends into the test groove.

[0015] Further, the mounting seat further comprises a cover plate covering the liquid storage pool, the bottom side of the cover plate is fixed with a temperature measuring element, and the temperature measuring element is provided with a second temperature measuring rod extending into the liquid storage pool.

[0016] Further, the detection seat is a multi-hole detection seat, the multi-hole detection seat is provided with a plurality of independent test grooves and liquid storage grooves, the test grooves are located in the liquid storage grooves, the multi-hole detection seat is provided with a test groove liquid inlet in communication with each test groove and a liquid storage groove liquid outlet in communication with the liquid storage groove.

[0017] Further, the electrode assembly has a plurality of conductive sheets and a circuit board electrically connected with the plurality of conductive sheets, and the conductive sheets are respectively arranged in the test slots.

[0018] The test device of the present application can accurately detect the electrical parameters of the dielectric sheet of the electrode array and can realize nondestructive testing.

[0019] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory and are not restrictive of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 A state diagram of the detection device according to an embodiment of the present application when detecting an electrode array;

[0021] Figure 2 A perspective view of the detection device and the dielectric sheet shown in Figure 1

[0022] Figure 3 A partial exploded perspective view of the detection device shown in Figure 1

[0023] Figure 4 Another partial exploded perspective view of the detection device shown in Figure 1

[0024] Figure 5 An exploded view of the mounting seat of the detection device shown in Figure 1

[0025] Figure 6 Another exploded view of the mounting seat of the detection device shown in Figure 1

[0026] Figure 7 A perspective view of the detection seat of the detection device shown in Figure 1

[0027] A perspective view of another embodiment of the detection device; Figure 8

[0028] A perspective exploded view of the detection device shown in Figure 9 Figure 8

[0029] BRIEF DESCRIPTION OF DRAWINGS

[0030] ​​​​​​​Detection device 100, electrode array 200, 200', wiring portion 201, flexible circuit board 202, mounting seat 1, base 11, top plate 12, first through hole 121, second through hole 122, observation window 123, liquid pool 13, liquid pool liquid outlet 131, cover plate 14, perforation 141, observation hole 142, water pump 15, water pump liquid inlet pipe 151, water pump liquid outlet pipe 152, water pump control board 16, external liquid storage pipe 17, liquid storage pipe liquid outlet 171, liquid storage pipe liquid inlet 172, vacuum extraction port 173, liquid storage pipe cover 18, temperature measuring element 19, second temperature measuring rod 191, fixing portion 192, second temperature measuring lead 193, detection seat 2, test groove 21, overflow outlet 211, test groove liquid inlet 22, liquid storage groove 23, liquid storage groove liquid outlet 24, hose 25, electrode assembly 3, conductive sheet 31, conductive sheet lead 32, first temperature measuring rod 33, first temperature measuring lead 34, fastener 35, porous detection seat 4, second test groove 41, second overflow outlet 411, second test groove liquid inlet 43, second liquid storage groove 42, second liquid storage groove liquid outlet 44, second electrode assembly 5, circuit board 51, second conductive sheet 52, socket 53, temperature measuring rod 54. DETAILED DESCRIPTION

[0031] The exemplary embodiments will be described in detail herein with reference to the attached drawings. In the following description, the same numbers are used to indicate the same or similar components. The following exemplary embodiments are not representative of all embodiments consistent with the present application. Rather, they are merely examples of devices, systems, apparatuses, and methods consistent with some aspects of the present application.

[0032] Reference Figure 1 and Figure 2As shown, the electrode array 200 is connected to a tumor electric field therapy device (not shown) and attached to the human body by an adhesive (not shown). The tumor electric field therapy device (not shown) applies an alternating current signal to the electrode array 200 to generate a low-intensity alternating electric field between the electrode array 200 for tumor treatment. The electrode array 200 has a flexible circuit board 202, a wiring portion 201 extending outward from the flexible circuit board 202, a plurality of dielectric sheets (not shown) arranged on the flexible circuit board 202, and a metal coating (not shown) arranged on the back of each dielectric sheet (not shown) and between the dielectric sheet (not shown) and the flexible circuit board 202. The metal coating (not shown) is used to electrically connect each dielectric sheet (not shown) to the corresponding part of the flexible circuit board 202. The detection device 100 uses a conductive solution to detect the electrical parameters of the dielectric sheet (not shown) of the electrode array 200. The basic principle of detection is to arrange the metal coating (not shown) and the dielectric sheet (not shown) of the electrode array 200, the conductive solution of the detection device 100, and the conductive sheet 31 in sequence to form a detection capacitor, and then test the capacitance and resistance of the dielectric sheet (not shown) of the electrode array 200. Specifically, the front surface of the dielectric sheet (not shown) of the electrode array 200 is not coated with metal, and the back surface of the dielectric sheet (not shown) is coated with metal. The conductors on both sides of the detection capacitor are the metal coating (not shown) of the electrode array 200 and the conductive sheet 31 of the detection device 100. The conductive sheet 31 is in conductive communication with the front surface of the dielectric sheet (not shown) through the conductive solution, and the metal coating (not shown) of the electrode array 200 is in conductive communication with the back surface of the dielectric sheet (not shown). The dielectric of the detection capacitor is composed of the dielectric sheet (not shown), wherein the dielectric sheet (not shown) can be a ceramic dielectric sheet or a high-molecular dielectric polymer film. The detection device 100 can also be provided with a temperature control system (not shown) to control the test temperature of the electrode array 200, so that the working temperature of the dielectric sheet (not shown) during the detection of the electrical parameters is closer to the temperature during the actual use of the electrode array 200, thereby ensuring the accuracy of the test data.

[0033] Reference Figure 3As shown, the detection device 100 comprises a mounting seat 1, a detection seat 2 fixed on the mounting seat 1, and an electrode assembly 3 located between the mounting seat 1 and the detection seat 2. The detection seat 2 is provided with a test groove 21 with an open top. The test groove 21 is filled with a conductive solution. The electrode array 200 is arranged close to the test groove 21 with the dielectric sheet (not shown) facing downward, so that the dielectric sheet (not shown) is in contact with the conductive solution in the test groove 21. The electrode assembly 3 is located below the bottom wall of the test groove 21. The electrode assembly 3 is provided with a sheet-shaped conductive sheet 31 extending into the test groove 21 and in contact with the conductive solution. The electrode assembly 3 is sealingly connected between the test groove 21 and the bottom wall of the test groove 21, so as to avoid the generation of gaps between the bottom wall of the test groove 21 and the conductive sheet 31, thereby preventing the conductive solution from leaking out. The conductive sheet 31 is made of a corrosion-resistant material and has a conductive sheet lead 32 extending from the conductive sheet 31, which can be electrically connected to an external test instrument (such as an LCR tester). The electrode array 200 is provided with a wiring portion 201 in electrical communication with the back surface of each dielectric sheet (not shown). The wiring portion 201 is also connected to the external test instrument (such as an LCR tester), thereby forming a detection circuit with the dielectric sheet (not shown) as the medium of the detection capacitor.

[0034] Referring to Figure 4 , Figure 5 and Figure 6 As shown, the mounting seat 1 supports the detection seat 2 and the electrode assembly 3, and can also provide a circulating conductive solution for the test groove 21 of the detection seat 2. The mounting seat 1 comprises a base 11, a top plate 12 covering the base 11, a liquid storage tank 13 arranged inside the base 11, a cover plate 14 covering the liquid storage tank 13, a water pump 15 and a water pump control panel 16 arranged inside the base 11, an external liquid storage pipe 17 and a liquid storage pipe cover 18 arranged on the top plate 12. The base 11 is arranged in a box shape with an open top. The top plate 12 covers the top of the base 11 and forms a box structure together with the base 11. The liquid storage tank 13 is also arranged in a box shape with an open top, used for storing the conductive solution, and is made of a corrosion-resistant material such as stainless steel, aluminum alloy subjected to oxidation treatment, etc. The capacity of the liquid storage tank 13 is greater than 500 ml. The liquid storage tank 13 can be fixedly installed inside the base 11 by screws (not shown). The cover plate 14 can be fixed above the liquid storage tank 13 by screws (not shown). The water pump 15 and the water pump control panel 16 are both accommodated in the base 11 and located outside the liquid storage tank 13.

[0035] A liquid outlet 131 is arranged on one side of the bottom of the liquid storage tank 13. The water pump 15 is provided with a water inlet pipe 151. The liquid outlet 131 of the liquid storage tank 13 is connected to the water inlet pipe 151 of the water pump 15. The liquid outlet 131 of the liquid storage tank 13 is the source of the conductive solution of the entire detection device 100. A temperature control system (not shown) such as a heating film or a thermoelectric cooling sheet can be arranged on the back of the liquid storage tank 13, used for heating or cooling the conductive solution.

[0036] The external liquid storage tube 17 is fixed above the top plate 12 by screws (not shown). The external liquid storage tube 17 is a hollow tube with an open top, and is provided with a liquid outlet 171 and a liquid inlet 172. The liquid inlet 172 is located at the bottom of the external liquid storage tube 17, and the liquid outlet 171 is located at the side of the external liquid storage tube 17. The water pump 15 is further provided with a water pump outlet pipe 152, which passes through the top plate 12 and is connected to the liquid inlet 172. The water pump outlet pipe 152 draws the conductive solution in the liquid pool 13 into the external liquid storage tube 17. The liquid storage tube cover 18 is a rubber plug that can seal the top opening of the external liquid storage tube 17 and prevent the conductive solution from overflowing. When maintenance is required, the liquid storage tube cover 18 can be removed to facilitate cleaning of the external liquid storage tube 17. The top plate 12 is provided with a first through hole 121 for the liquid inlet 172 to pass through and extend into the base 11.

[0037] Reference Figure 7 As shown in FIG. 1, the detection seat 2 includes a test groove inlet 22 that communicates with the test groove 21. The test groove inlet 22 is connected to the liquid outlet 171 of the external liquid storage tube 17 through a hose 25 (see FIG. 2). The liquid level of the conductive solution in the external liquid storage tube 17 is higher than that in the test groove 21, so the conductive solution flows into the test groove 21 of the detection seat 2 by gravity potential. Figure 1

[0038] The detection seat 2 is further provided with a liquid storage groove 23 surrounding the test groove 21 and at least one liquid storage groove outlet 24 communicating with the liquid storage groove 23. The top end of the test groove 21 is provided with at least one overflow outlet 211. When the conductive solution in the test groove 21 reaches a certain height, it will overflow through the overflow outlet 211 into the liquid storage groove 23, and then flow out of the detection seat 2 through the liquid storage groove outlet 24. In this embodiment, the liquid storage groove outlet 24 is arranged at the bottom of the detection seat 2. The top plate 12 is provided with a second through hole 122 corresponding to the liquid storage groove outlet 24, and the cover plate 14 is also provided with a perforation 141 corresponding to the liquid storage groove outlet 24. The liquid storage groove outlet 24 extends into the liquid pool 13 through the second through hole 122 and the perforation 141, and recycles the conductive solution overflowing from the test groove 21 into the liquid pool 13. In this embodiment, the detection seat 2 is provided with two liquid storage groove outlets 24. The conductive solution enters the external liquid storage tube 17 from the liquid pool 13 by the water pump 15, and then enters the test groove 21 of the detection seat 2 under the action of gravity potential and positive air pressure. The conductive solution in the test groove 21 overflows from the overflow outlet 211 at the top end of the test groove 21 into the liquid storage groove 23, and then further flows back into the liquid pool 13 through the liquid storage groove outlet 24 to form a circulation.

[0039] ​Through the arrangement of the above structure, the detection device 100 can automatically supplement the test groove 21 of the detection seat 2 with liquid. Due to the water surface tension, the liquid level of the conductive solution is slightly higher than the overflow outlet 2mm, so that the liquid level of the conductive solution in the test groove 21 is slightly higher than the side wall height of the test groove 21, and good contact with the dielectric sheet (not shown) of the electrode array 200 to be tested is achieved, thereby forming a detection device 100 that can be automatically and efficiently detected without frequent manual intervention of the conductive solution. The presence of the external liquid storage pipe 17 can prevent air bubbles from entering the conductive solution, making the flow of the conductive solution more stable and stable.

[0040] Please refer to Figure 4 and Figure 6 As shown in the drawings, the top plate 12 is provided with an observation window 123, and the cover plate 14 is provided with an observation hole 142 corresponding to the observation window 123. The inside of the liquid storage tank 13, such as the volume and state of the conductive solution, can be observed through the observation window 123 and the observation hole 142. The external liquid storage pipe 17 has a double-layer structure, and is provided with a vacuum extraction port 173. The vacuum extraction port 173 is used to extract the gas in the interlayer of the external liquid storage pipe 17 to achieve double-layer vacuum insulation, thereby reducing the heat transfer of the conductive solution in the external liquid storage pipe 17 and maintaining the temperature.

[0041] One end of the electrode assembly 3 is provided with the aforementioned conductive sheet lead 32, and the other end is provided with the first temperature measuring rod 33 and the first temperature measuring lead 34. The first temperature measuring rod 33 is fixed on the conductive sheet 31 by a fastener 35 and forms an insulating and sealed connection with the conductive sheet 31. The conductive sheet lead 32 and the first temperature measuring lead 34 respectively pass through the top plate 12 downward into the base 11 and are electrically connected with the control mainboard (not shown) in the base 11. The first temperature measuring rod 33 extends into the test groove 21 to detect the temperature of the conductive solution in the test groove 21 in real time, and sends the temperature signal to the control mainboard (not shown) to control the temperature control system (not shown) connected with the control mainboard (not shown) to adjust the temperature of the conductive solution.

[0042] The base 11 further comprises a temperature measuring member 19 arranged below the cover plate 14. The temperature measuring member 19 comprises a second temperature measuring rod 191, a fixing portion 192 for fixing the second temperature measuring rod 191, and a second temperature measuring lead 193 electrically connected with the second temperature measuring rod 191. The fixing portion 192 is fixed on the bottom surface of the cover plate 14 by screws (not shown). The second temperature measuring lead 193 passes out of the cover plate 14 upward into the base 11 and is electrically connected with the control mainboard (not shown) in the base 11. The second temperature measuring rod 191 extends into the liquid storage tank 13 to contact with the conductive solution, so as to detect the temperature of the conductive solution in the liquid storage tank 13 in real time, and send the temperature signal to the control mainboard (not shown) to control the temperature control system (not shown) connected with the control mainboard (not shown) to adjust the temperature of the conductive solution.

[0043] Please refer to Figure 1and Figure 2 As shown, before testing, the detection device 100 first pours a sufficient amount of prepared conductive solution into the reservoir 13 through the detection seat 2. The conductive solution can be selected from a solution with high concentration, safety, non-toxicity, and non-corrosiveness, such as potassium chloride solution or sodium chloride solution. At the same time, the power supply of the temperature control system (not shown) is connected to start the refrigeration or heating of the conductive solution to the preset temperature, and the preset temperature range is 37-40°C. Alternatively, when the detection only needs to be carried out at room temperature, the detection device 100 can turn off the temperature control system (not shown) and the corresponding temperature measuring element, or directly omit the setting of the temperature control system (not shown) and the corresponding temperature measuring element. When the detection device 100 completes the foregoing operation, the side of the electrode array 200 provided with the dielectric sheet (not shown) is contacted with the conductive solution in the test groove 21 of the detection seat 2, and then the test instrument (such as an LCR tester) or a self-made detection circuit is connected to the lead 32 and the wiring part 201 of the electrode array 200 to test the capacitance and resistance of the dielectric sheet (not shown).

[0044] There are many methods for testing the fixed electrode array 200. The following is a simple example. For example, for the electrode array 200 with thick and heavy ceramic dielectric sheets, a clamp can be used to fix the side of the dielectric sheet (not shown), and then a manual, sliding rail tool or an automatic robot mechanism is used to operate the clamp to move the corresponding dielectric sheet (not shown) in the electrode array 200 to align with the detection seat 2 for testing. For the electrode array 200 with light and thin flexible dielectric sheets, the clamp has no stress point or is easy to damage the electrode array 200 under test when fixed. Therefore, a negative pressure suction cup or a strong magnet can be used to align with the side of the electrode array 200 away from the dielectric sheet (not shown) for adsorption and fixation, and then a manual, sliding rail tool or an automatic robot mechanism is used to operate the clamp to move the corresponding dielectric sheet (not shown) in the electrode array 200 to align with the detection seat 2 for testing. It can be understood that the detection seat 2 can be adjusted according to the configuration of different dielectric sheets in the electrode array 200 under test. In the present embodiment, the detection seat 2 is in a two-hole form and can simultaneously test two connected dielectric sheets (not shown). In other embodiments, the structure of the detection seat 2 can be changed to a single-hole or multi-hole form for testing. For different shapes of dielectric sheets, the detection seat 2 can also be adjusted to a rectangular or irregular shape. The following is a simple introduction to one of the extended forms.

[0045] Reference Figure 8 and Figure 9 As shown, the present application also provides a multi-hole detection seat 4 and a corresponding second electrode assembly 5. The multi-hole detection seat 4 can simultaneously test multiple dielectric sheets (not shown) in multiple hole positions, which has higher testing efficiency and is more suitable for the electrode array 200' with large spacing between adjacent dielectric sheets.

[0046] The structure frame of the multi-hole detection seat 4 is basically consistent with the detection seat 2. The multi-hole detection seat 4 comprises thirteen second test grooves 41 independent of each other and a second liquid storage groove 42 surrounding the second test grooves 41, and all the second test grooves 41 are located in the second liquid storage groove 42. The distribution of the second test grooves 41 matches the positions of the dielectric sheets (not shown) of the electrode array 200'. The multi-hole detection seat 4 further comprises a second test groove liquid inlet 43 communicating with each second test groove 41 and a second liquid storage groove liquid outlet 44 communicating with the second liquid storage groove 42. The second test groove liquid inlet 43 respectively communicates with the second test grooves 41, and the conductive solution can be introduced into all the second test grooves 41 at the same time. The upper end of each second test groove 41 is provided with a second overflow port 411, and the continuously accumulated conductive solution is overflowed from the second overflow port 411 of each second test groove 41 to the second liquid storage groove 42, and finally flows back to the liquid storage pool 13 through the second liquid storage groove liquid outlet 44, forming a recycling use of the conductive solution.

[0047] The second electrode assembly 5 comprises a circuit board 51 and thirteen second conductive sheets 52 electrically connected with the circuit board 51, and the second conductive sheet 52 is provided individually corresponding to each second test groove 41. The second conductive sheet 52 is located at the bottom of the second test groove 41 and contacts with the conductive solution in the second test groove 41. The circuit board 51 is provided with conductive traces (not shown) connecting the second conductive sheets 52, and the conductive traces (not shown) are gathered to the socket 53 of the circuit board 51, and then are electrically connected with the external test instrument (such as LCR tester) through the mating cable connector (not shown) matched with the socket 53, so that the maintainability of the equipment is improved. In addition, the temperature measuring rod 54 is optionally arranged on the second conductive sheet 52.

[0048] The above is only the preferred embodiment of the present application, and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A detection device for detecting an electrical parameter of a dielectric sheet of an electrode array, characterized in that: The electrode array is arranged above the test groove with the dielectric sheet facing downwards, and the dielectric sheet is in contact with the conductive solution.

2. The detection device of claim 1, wherein: The mounting seat comprises a base and a top plate fixed on the base, and the base is provided with a liquid pool storing the conductive solution and a water pump leading the conductive solution in the liquid pool into the test groove.

3. The detection device of claim 2, wherein: The mounting seat is provided with an external liquid pool pipe fixed on the top plate and leading the conductive solution in the liquid pool into the test groove under the action of the water pump.

4. The detection device of claim 3, wherein: The detection seat is provided with a liquid storage groove surrounding the test groove, and the top side of the test groove is provided with an overflow port for the conductive solution to overflow and flow to the liquid storage groove, and the liquid storage groove is in communication with the liquid pool.

5. The detection device of claim 3, wherein: The external liquid pool pipe is provided with a sandwich layer and a vacuum extraction port for extracting gas in the sandwich layer.

6. The detection device of claim 4, wherein: The mounting seat is provided with a liquid pool pipe cover blocking the top opening of the external liquid pool pipe.

7. The detection device of claim 4, wherein: The conductive sheet is provided with a first temperature measuring rod, and the first temperature measuring rod extends into the test groove.

8. The detection device of claim 4, wherein: The mounting seat further comprises a cover plate covering the liquid pool, and the bottom side of the cover plate is fixed with a temperature measuring element, and the temperature measuring element is provided with a second temperature measuring rod extending into the liquid pool.

9. The detection device of claim 3, wherein: The detection seat is a multi-hole detection seat, which is provided with a plurality of independent test grooves and liquid storage grooves, and the test grooves are located in the liquid storage grooves.

10. The detection device of claim 9, wherein: The electrode assembly has a plurality of conductive sheets and a circuit board electrically connected with the plurality of conductive sheets, and the conductive sheets are respectively arranged individually corresponding to each test groove.

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