Detection device

Abstract

The utility model provides a detection device, which is used for detecting electrical parameters of a dielectric sheet and comprises a first seat, a second seat assembled and fixed to the first seat and a sealing ring clamped between the first seat and the second seat, the first seat is provided with a first cavity for accommodating a conductive solution and a first conductive sheet which is positioned in the first cavity and is conducted with the conductive solution, and the second seat is provided with a second cavity for accommodating the conductive solution. The second seat is provided with a second cavity for accommodating a conductive solution and a second conductive sheet which is positioned in the second cavity and is conducted with the conductive solution; the sealing ring sleeves the periphery of the dielectric sheet. The sealing ring and the dielectric sheet jointly separate the first cavity and the second cavity and are in contact with the conductive solution in the first cavity and the conductive solution in the second cavity. According to the testing device, the capacitance value and the resistance value of the dielectric sheet can be conveniently and nondestructively detected, whether the dielectric sheet is qualified or not is determined, the testing device is suitable for the dielectric sheet without a metal coating, and waste of the metal coating caused by the unqualified dielectric sheet is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to a detection device for detecting dielectric sheet electrical parameters. 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 alternating electric signals for tumor electric field therapy to each pair of electrode sheets through the adapter. The paired electrode sheets are applied to the body surface on the opposite sides of the tumor area of the patient, and an alternating current signal is applied to generate an alternating electric field for tumor treatment between the paired electrode sheets.

[0004] The electrode sheet is an array made of a circuit board and a dielectric sheet arranged on the circuit board, and the electrical parameters of the dielectric sheet determine the performance of the electrode sheet, wherein the relative dielectric constant and the dielectric loss are two important bases for judging the electrical parameters of the dielectric sheet, and a reliable and convenient detection device is needed to detect the electrical parameters of the dielectric sheet. At present, the dielectric sheet on the electrode sheet is usually cylindrical, and one of the upper surface and the lower surface thereof 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 of which is only for the dielectric sheet with a metal coating on one surface, and during detection, a flexible conductive substance such as conductive gel is first attached to the surface without the metal coating, and then a metal layer is attached, so that the dielectric sheet forms a capacitor device with double-sided metal layers; then the capacitance and resistance of the dielectric sheet are detected by an instrument, and the relative dielectric constant and the dielectric loss are converted. However, the detection efficiency of this detection device is low, and due to the problem that the flexible conductive substance cannot be in good contact with the dielectric sheet or due to its own high loss, the precision of the detected capacitance and resistance is not high. The other detection device is for the dielectric sheet with metal coatings on both surfaces, and during detection, the dielectric sheet is plated with metal coatings on both surfaces, and then the capacitance and resistance are detected by an instrument, and 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, so this detection method is a destructive detection. If the dielectric sheet with a metal coating is detected to be unqualified, the metal coating and the process steps will be wasted. In addition, the above two methods are not suitable for the detection of the electrical parameters of the semi-finished dielectric sheet before the metal coating is arranged.

[0005] Therefore, it is necessary to propose a new detection device to detect the semi-finished dielectric sheet before the metal coating is arranged. Content of the utility model

[0006] The present application provides a detection device for conveniently and non-destructively detecting the electrical parameters of a dielectric sheet.

[0007] Specifically, the present application is realized by the following technical scheme: a detection device for detecting the electrical parameters of a dielectric sheet, comprising a first seat, a second seat fixedly arranged on the first seat, and a sealing ring clamped between the first seat and the second seat, the first seat having a first cavity for containing a conductive solution and a first conductive sheet located in the first cavity and in conductive communication with the conductive solution, and the second seat having a second cavity for containing the conductive solution and a second conductive sheet located in the second cavity and in conductive communication with the conductive solution; the sealing ring is sleeved on the outer periphery of the dielectric sheet, and the sealing ring and the dielectric sheet together separate the first cavity and the second cavity and are in contact with the conductive solution located in the first cavity and the second cavity.

[0008] Further, the sealing ring is provided with sealing protruding ribs on both sides thereof, which protrude and abut against the first seat and the second seat.

[0009] Further, the sealing ring is provided with a groove on its inner wall for embedding the outer periphery of the dielectric sheet.

[0010] Further, the first seat is provided with a first liquid discharge column and a first liquid inlet column in communication with the first cavity, and the second seat is provided with a second liquid discharge column and a second liquid inlet column in communication with the second cavity.

[0011] Further, the first liquid discharge column vertically extends upward from the top of the first seat, and the first liquid discharge column horizontally extends from the middle of the first seat; the second liquid discharge column vertically extends upward from the top of the second seat, and the second liquid discharge column horizontally extends from the middle of the second seat.

[0012] Further, the first seat has a first inner opening in communication with the first cavity at one end close to the second seat, and the second seat has a second inner opening in communication with the second cavity at one end close to the first seat, the edge of the first inner opening is provided with a first sealing groove, and the edge of the second inner opening is provided with a second sealing groove, the first sealing groove of the first seat and the second sealing groove of the second seat jointly accommodate and fix the sealing ring.

[0013] Further, the first seat has a first base and a first main body part, the first base has a first base plate and a first side plate connected with the first base plate, and the first main body part is connected with the first side plate and located on the same side of the first base plate; the first cavity is jointly formed by the first main body part and the first side plate, and the first cavity forms the first inner opening on the first side plate.

[0014] Further, the second seat has a second base and a second main body part, the second base has a second base plate and a second side plate connected with the second base plate, and the second main body part is connected with the second side plate and located on the same side of the second base plate; the second cavity is jointly formed by the second main body part and the second side plate, and the second cavity forms the second inner opening on the second side plate.

[0015] Further, the first cavity forms a first outer opening at one end of the first main body part away from the second main body part, and the first conductive sheet is sealingly arranged in the first outer opening; the second cavity forms a second outer opening at one end of the second main body part away from the first main body part, and the second conductive sheet is sealingly arranged in the second outer opening.

[0016] Further, the first conductive sheet is connected with a first conductive sheet lead line leading out of the first cavity, and the second conductive sheet is connected with a second conductive sheet lead line leading out of the second cavity.

[0017] The test device of the present application can conveniently and non-destructively detect the capacitance and resistance of a dielectric sheet to confirm whether the dielectric sheet is qualified. It is also applicable to dielectric sheets without metal coating, and will not waste the metal coating caused by unqualified dielectric sheets.

[0018] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional combined diagram of a detection device and a dielectric sheet according to one embodiment of the present application;

[0020] Figure 2 for Figure 1 3D exploded view of the detection device and dielectric sheet shown in ;

[0021] Figure 3 For the Figure 1 The cross-sectional view obtained along the AA line in FIG;

[0022] Figure 4 for Figure 3 sectional exploded view of the detection device and dielectric sheet shown in FIG.

[0023] Description of reference numerals:

[0024] Detection device 100, dielectric sheet 200, first seat 1, first cavity 10, first inner opening 101, first outer opening 102, first sealing groove 103, first base 11, first seat 111, first side plate 112, first main body 12, first liquid drainage column 121, first liquid inlet column 122, first conductive sheet 13, first conductive sheet lead 131, second seat 2, second cavity 20, second inner opening 201, second outer opening 202, second sealing groove 203, second base 21, second seat 211, second side plate 212, second main body 22, second liquid drainage column 221, second liquid inlet column 222, second conductive sheet 23, second conductive sheet lead 231, sealing ring 3, inner sidewall 31, groove 32, sealing rib 33. DETAILED DESCRIPTION

[0025] Exemplary embodiments are described in detail herein, with examples illustrated in the accompanying drawings. When the following description refers to the drawings, identical numerals in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of devices, systems, apparatus, and methods consistent with certain aspects of the present application.

[0026] Figure 1The detection device 100 shown in the application can be used for detecting the electrical parameters of the semi-finished dielectric sheet 200 without metal coating on both sides. In the embodiment, the dielectric sheet 200 to be detected is a circular ceramic sheet. It can be understood that the dielectric sheet 200 can also be of other shapes, and the structure of the detection device 100 can be adjusted accordingly to be consistent with the shape of the dielectric sheet 200.

[0027] Reference Figures 2 to 4 As shown, the detection device 100 comprises a first seat 1, a second seat 2, and a sealing ring 3 clamped between the first seat 1 and the second seat 2. The first seat 1 and the second seat 2 are identical in structure and can be arranged in mirror symmetry. The first seat 1 comprises a first cavity 10 arranged in an open manner on the side close to the second seat 2, and the second seat 2 comprises a second cavity 20 arranged in an open manner on the side close to the first seat 1. The sealing ring 3 is sleeved on the dielectric sheet 200, and then clamped together with the dielectric sheet 200 between the first seat 1 and the second seat 2. The sealing ring 3 and the dielectric sheet 200 jointly separate the first cavity 10 and the second cavity 20, and the opposite sides of the dielectric sheet 200 are respectively located in the first cavity 10 and the second cavity 20. During detection, conductive solution (not shown) is injected into the first cavity 10 and the second cavity 20, respectively, and an external power supply and an instrument are connected through the conductive sheets (not numbered) on the first seat 1 and the second seat 2 to form an electric circuit through the dielectric sheet 200, so that the electrical parameters of the dielectric sheet 200 can be detected to determine whether the dielectric sheet 200 is qualified.

[0028] The first seat 1 comprises a first base 11, a first main body 12, and a first conductive sheet 13. The first base 11 is arranged in an L shape and comprises a first base 111 arranged horizontally and a first side plate 112 connected to the first base 111 and arranged vertically. The first base 111 and the first side plate 112 are arranged vertically, and the first side plate 112 is located at the left end of the first base 111. The first main body 12 is arranged transversely on the right side of the first side plate 112, and the left end of the first main body 12 is connected to the first side plate 112. The first main body 12 is arranged in a hollow cylindrical shape, and the first cavity 10 is formed by the first main body 12 and the first side plate 112. The first cavity 10 forms a first inner opening 101 on the first side plate 112, and the first cavity 10 forms a first outer opening 102 at the end of the first main body 12 away from the first side plate 112. The first conductive sheet 13 is inserted into the first cavity 10 and seals the first outer opening 102, so as to avoid the conductive solution filled in the first cavity 10 from overflowing during the test process due to the gap between the first outer opening 102 and the first conductive sheet 13. The first outer opening 102 is a stepped hole which can position the first conductive sheet 13, and the first conductive sheet 13 is further connected to a first conductive sheet lead 131 (see FIG. 2) outside the first seat 1. Figure 4 )。

[0029] The first main body part 12 of the first seat 1 is further provided with a first liquid outlet column 121 and a first liquid inlet column 122, which are hollow and communicate with the first cavity 10. The first liquid inlet column 122 is connected with a hose (not shown) for sucking the conductive solution, and the first liquid outlet column 121 is connected with a hose (not shown) for discharging the conductive solution. The first liquid outlet column 121 extends vertically upward from the top of the outer wall of the first main body part 12, and the first liquid inlet column 122 extends horizontally from the middle of the outer wall of the first main body part 12.

[0030] The second seat 2 is identical in structure to the first seat 1 and is mirror-symmetrically arranged. The second seat 2 comprises a second base 21, a second main body part 22 and a second conductive sheet 23. The second base 21 is mirror-symmetrically arranged in an L shape and comprises a second base plate 211 arranged horizontally and a second side plate 212 connected with the second base plate 211 and arranged vertically. The second base plate 211 and the second side plate 212 are arranged vertically, and the second side plate 212 is located at the right end of the second base plate 211. The second main body part 22 is arranged horizontally at the left side of the second side plate 212, and the right end of the second main body part 22 is connected with the second side plate 212. The second main body part 22 is arranged in a hollow cylindrical shape, and the second cavity 20 is formed by the second main body part 22 and the second side plate 212. The second cavity 20 forms a second inner opening 201 on the second side plate 212, and the second cavity 20 forms a second outer opening 202 at the left end of the second main body part 22. The second conductive sheet 23 is inserted into the second cavity 20 and seals the second outer opening 202, so as to avoid the conductive solution filled in the second cavity 20 from overflowing during the test process due to the gap between the second outer opening 202 and the second conductive sheet 23. The second outer opening 202 is a stepped hole for positioning the second conductive sheet 23, and the second conductive sheet 23 is further connected with a second conductive sheet lead 231 leading out of the second seat 2. The first conductive sheet 13 and the second conductive sheet 23 are both made of metal.

[0031] The second main body part 22 of the second seat 2 is further provided with a second liquid outlet column 221 and a second liquid inlet column 222, which are hollow and communicate with the second cavity 20. The second liquid inlet column 222 is connected with a hose (not shown) for sucking the conductive solution, and the second liquid outlet column 221 is connected with a hose (not shown) for discharging the conductive solution. The second liquid outlet column 221 extends vertically upward from the top of the outer wall of the second main body part 22, and the second liquid inlet column 222 extends horizontally from the middle of the outer wall of the second main body part 22.

[0032] The sealing ring 3 is provided with a groove 32 in the middle of the inner side wall 31. The outer peripheral edge of the dielectric sheet 200 is embedded in the groove 32, and the sealing ring 3 is sleeved outside the peripheral edge of the dielectric sheet 200 in a sealed manner. The first seat 1 is provided with a first sealing groove 103 at the edge of the first inner opening 101, and the right end of the sealing ring 3 is inserted into the first sealing groove 103 to seal the first inner opening 101 together with the dielectric sheet 200. The second seat 2 is provided with a second sealing groove 203 at the edge of the second inner opening 201, and the left end of the sealing ring 3 is inserted into the second sealing groove 203 to seal the second inner opening 201 together with the dielectric sheet 200. The sealing ring 3 is further provided with a sealing protruding rib 33 on the left and right sides, which protrudes and presses against the inner wall of the first seat 1 at the first sealing groove 103 and the inner wall of the second seat 2 at the second sealing groove 203, respectively, and can be used to improve the sealing effect of the sealing ring 3.

[0033] The conductive solution can be selected to have a high concentration, be safe and non-toxic, and be non-corrosive, such as a potassium chloride solution or a sodium chloride solution, and the electrical conductivity can reach more than 20 S / m. The type and concentration of the solution need to be calculated to make the resistance of the conductive solution itself as small as possible compared to the resistance of the dielectric sheet 200 to be detected, so as to achieve high detection accuracy without damaging the object to be detected.

[0034] During detection, the dielectric sheet 200 is first loaded into the groove 32 of the sealing ring 3, the right end of the sealing ring 3 is fixed in the first sealing groove 103 of the first seat 1, and then the second seat 2 is attached to the first seat 1 to fix the left end of the sealing ring 3 in the second sealing groove 203 of the second seat 2. The first side plate 112 and the second side plate 212 are attached face to face, and the structural fastener (not shown) is used to tightly connect the first side plate 112 and the second side plate 212, so that the sealing ring 3 is squeezed and forms a sealed connection. At this time, the first cavity 10 of the first seat 1 and the second cavity 20 of the second seat 2 are completely separated by the dielectric sheet 200 and the sealing ring 3. The conductive solution is sucked into the first liquid inlet column 122 and the second liquid inlet column 222, respectively, until the liquid level of the conductive solution is higher than the plane where the first liquid outlet column 121 and the second liquid outlet column 221 are located. At this time, the detection device 100 forms a capacitor, the first conductive sheet 13 and the second conductive sheet 23 are conductive sheets (not numbered) on both sides of the dielectric sheet 200, the dielectric sheet 200 is the dielectric, and the first conductive sheet 13 and the second conductive sheet 23 are connected through the conductive solution and the dielectric sheet 200. Using an instrument (not shown), the capacitance and resistance of the dielectric sheet 200 can be detected. After detection is completed, the conductive solution in the first cavity 10 and the second cavity 20 is discharged through the first liquid outlet column 121 and the second liquid outlet column 221, and then the structural fastener (not shown) is released, so that the dielectric sheet 200 can be taken out.

[0035] The detection device 100 can conveniently and non-destructively detect the capacitance and resistance of the dielectric sheet 200, confirm whether the dielectric sheet 200 is qualified, and can be applied to the dielectric sheet 200 without metal coating, and will not cause waste of metal coating due to unqualified dielectric sheet 200.

[0036] The dielectric sheet 200 to be detected can be used as a dielectric component of an electrode sheet for tumor electric field treatment. The electrode sheet (not shown) includes a flexible circuit board (not shown) and the dielectric sheet 200 disposed on the flexible circuit board (not shown). Specifically, the dielectric sheet 200 is disposed on the flexible circuit board (not shown) with the metal layer (not shown) facing the flexible circuit board (not shown) and electrically connected to the flexible circuit board (not shown). The pair of electrode sheets are attached to the body surface on the opposite sides of the tumor area of the patient, and the electric field generating device (not shown) directly or indirectly through an adapter (not shown) transmits an alternating electric signal for tumor electric field treatment to each pair of electrode sheets to generate a medium frequency (e.g. 50 kHz to 1 MHz) and low intensity alternating electric field for tumor treatment between the pair of electrode sheets to perform electric field treatment on the corresponding tumor area.

[0037] The above is only a preferred embodiment of the present application and is not intended 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 scope of protection of the present application.

Claims

1. A detection device for detecting electrical parameters of a dielectric sheet, characterized in that: It includes a first seat, a second seat assembled and fixed to the first seat, and a sealing ring sandwiched between the first seat and the second seat. The first seat has a first cavity for accommodating a conductive solution and a first conductive sheet located in the first cavity and conductive to the conductive solution. The second seat has a second cavity for accommodating the conductive solution and a second conductive sheet located in the second cavity and conductive to the conductive solution. The sealing ring is sleeved on the outer circumference of the dielectric sheet. The sealing ring and the dielectric sheet jointly separate the first cavity and the second cavity and are both in contact with the conductive solution located in the first cavity and the second cavity.

2. The detection device according to claim 1, characterized in that: The sealing ring is provided with sealing ribs on both sides thereof which protrude and abut against the first seat and the second seat respectively.

3. The detection device according to claim 1, characterized in that: The sealing ring is provided with a circle of grooves on its inner side wall for the outer periphery of the dielectric sheet to be embedded.

4. The detection device according to claim 1, characterized in that: The first seat is provided with a first liquid discharge column and a first liquid inlet column communicated with the first cavity, and the second seat is provided with a second liquid discharge column and a second liquid inlet column communicated with the second cavity.

5. The detection device according to claim 4, characterized in that: The first drainage column extends vertically upward from the top of the first seat, and extends horizontally from the middle of the first seat; the second drainage column extends vertically upward from the top of the second seat, and extends horizontally from the middle of the second seat.

6. The detection device according to claim 1, characterized in that: The first seat has a first inner opening communicating with the first cavity at one end close to the second seat, and the second seat has a second inner opening communicating with the second cavity at one end close to the first seat. A first sealing groove is provided at the edge of the first inner opening, and a second sealing groove is provided at the edge of the second inner opening. The first sealing groove of the first seat and the second sealing groove of the second seat jointly accommodate and fix the sealing ring.

7. The detection device according to claim 6, characterized in that: The first seat has a first base and a first main body, the first base has a first base and a first side panel connected to the first base, the first main body is connected to the first side panel and is located on the same side of the first side panel as the first base; the first cavity is formed by the first main body and the first side panel, and the first cavity forms the first inner opening on the first side panel.

8. The detection device according to claim 7, characterized in that: The second seat has a second base and a second main body, the second base has a second base and a second side panel connected to the second base, the second main body is connected to the second side panel and is located on the same side of the second side panel as the second base; the second cavity is formed by the second main body and the second side panel, and the second cavity forms the second inner opening on the second side panel.

9. The detection device according to claim 8, characterized in that: The first cavity forms a first external opening at one end of the first main body away from the second main body, and the first conductive sheet is sealed in the first external opening; the second cavity forms a second external opening at one end of the second main body away from the first main body, and the second conductive sheet is sealed in the second external opening.

10. The detection device according to claim 9, characterized in that: The first conductive sheet is connected to a first conductive sheet lead extending out of the first cavity, and the second conductive sheet is connected to a second conductive sheet lead extending out of the second cavity.

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