Capacitance detection device
By designing a capacitance detection device, combining temperature control and laser detection, the problem of unreliable capacitance detection results in the prior art is solved, and accurate detection and screening of capacitors under the simulated environment are achieved.
Patent Information
- Application Number
- CN202422228315.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-11
AI Technical Summary
The existing capacitance detection device cannot simulate the working environment of the capacitor, the reliability of the detection results is poor, and the appearance of the capacitor that does not meet the standards cannot be screened out.
A capacitance detection device is designed, including a detection base plate and a top plate. It is connected by a lifting device, and a detection contact, a capacitor indicator and a controller are set. Combined with a temperature control mechanism and a laser detection mechanism, it can simulate the working environment temperature of the capacitor and detect the capacitor bulge, and use a PLC controller to perform charging and discharging detection and screening.
It realizes accurate charging and discharging detection of multiple capacitors in the working environment of analog capacitors, and can screen out capacitors that do not meet the standards, improving the reference value and accuracy of the detection results.
Smart Images
Figure CN223123145U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of capacitor detection equipment, in particular to a capacitor detection device. Background Technique
[0002] Before installing electronic components into electronic products, corresponding detections need to be carried out on the electronic components. Only after determining that the electronic components can work normally can they be applied to electronic products to prevent the electronic products from failing to work properly due to electronic component failures. For example, capacitors are prone to be affected by usage conditions during actual use and have a high failure rate. After a capacitor fails, it is easy to show a short circuit in the circuit. If a failed capacitor is applied to the circuit, it is likely to cause electrical equipment failures. Therefore, it is necessary to detect capacitors.
[0003] Moreover, damaged capacitors generally have bulging and other conditions. Therefore, whether the capacitor's appearance is intact is a very important detection index.
[0004] However, the existing capacitor detection devices cannot simulate the working environment of capacitors, the reliability of the detection results is poor, and they cannot detect and screen the appearance of capacitors. Content of the Utility Model
[0005] The purpose of the utility model is to provide a capacitor detection device that can perform charge and discharge detections on multiple capacitors to be tested, can simulate the working environment temperature of the capacitors to be tested, make the detection results more accurate and more valuable for reference, and can screen out unqualified capacitors to be tested through bulge detection.
[0006] The utility model is realized as follows:
[0007] A capacitor detection device includes a detection bottom plate and a detection top plate. The detection bottom plate is connected to the detection top plate through a lifting device. Multiple groups of detection contacts for connecting capacitors to be tested, a capacitor indicator, and a controller are arranged on the detection bottom plate. Any group of the detection contacts is correspondingly connected in series with a detection resistor. One end of the detection contact is connected to one end of the detection resistor, the other end of the detection contact is grounded, the other end of the detection resistor is connected to a first power supply through a first switch, and both ends after the detection contact and the detection resistor are connected in series are connected in parallel with a second switch. Multiple detection resistors are respectively connected in parallel with the capacitor indicator. The lifting device, the capacitor indicator, and the controller are all connected to a second power supply;
[0008] The detection top plate is provided with detection grooves corresponding to the number of groups of detection contacts. The detection grooves are correspondingly arranged directly above the detection contacts. A temperature control mechanism is installed on the side wall of the detection groove, and a laser detection mechanism is installed on the top of the detection groove. The first switch, the second switch, the temperature control mechanism, and the laser detection mechanism are respectively connected to the controller. The temperature control mechanism and the laser detection mechanism are both connected to the second power supply.
[0009] Furthermore, the temperature control mechanism includes a temperature control component installed on the side wall of the detection groove and a temperature regulator for adjusting the temperature of the temperature control component. The temperature regulator is electrically connected to the controller.
[0010] Furthermore, the laser detection mechanism includes a rotating motor installed on the detection top plate. The output shaft of the rotating motor vertically extends directly opposite to the axis of the capacitor to be measured and is drivingly connected to a horizontally arranged connecting rod. One end of the connecting rod is connected to the rotating motor, and the other end of the connecting rod is connected to a laser sensor for detecting the bulge of the capacitor to be measured. The rotating motor and the laser sensor are both electrically connected to the controller.
[0011] Furthermore, the connecting rod includes a telescopic adjusting rod, and the telescopic adjusting rod is connected to the controller.
[0012] Furthermore, the lifting device includes a plurality of hydraulic cylinders. One end of the hydraulic cylinder is fixedly connected to the detection bottom plate, and the other end is fixedly connected to the detection top plate.
[0013] Compared with the prior art, the beneficial effects of the present utility model are:
[0014] In practical applications, the detection contact and the detection resistor are both powered by the first power supply, and the lifting device, the capacitance indicator, the controller, the temperature control mechanism, and the laser detection mechanism are all powered by the second power supply to avoid interfering with the detection power signal. The controller can adopt a PLC controller, which will not be elaborated in the specification. Before the detection, the controller controls the lifting device to raise the detection top plate, and at the same time, the controller disconnects the first switch and the second switch. After connecting the capacitor to be tested with the detection contact, the controller controls the lifting device to lower the detection top plate so that the capacitor to be tested is placed in the corresponding detection groove, and then connects the first switch. The capacitor to be tested is charged through the detection resistor. Then, the temperature control mechanism is turned on to simulate the working environment temperature of the capacitor to be tested. After the charging is completed, the controller disconnects the first switch and connects the second switch, and the capacitor to be tested is discharged through the detection resistor. During this process, the capacitance indicator is used to judge whether the charging and discharging of the capacitor to be tested meet the standards. If not, an alarm indication is issued for the non-compliant capacitor. At the same time, the controller controls the laser detection mechanism to detect and judge whether the capacitor to be tested bulges to screen out the damaged capacitors; The utility model can simultaneously perform charging and discharging detection on multiple capacitors to be tested, and can simulate the working environment temperature of the capacitors to be tested, making the detection results more accurate and valuable for reference, and can screen out the non-compliant capacitors to be tested through bulge detection. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.
[0016] Figure 1 is a sectional view of the structural schematic diagram of the present invention;
[0017] Figure 2 is the circuit schematic diagram of the present invention.
[0018] Reference numerals: detection bottom plate 1; detection top plate 2; detection contact 3; capacitance indicator 4; controller 5; detection resistor 6; first power supply 7; second power supply 8; detection groove 9; second switch 10; first switch 11; temperature control component 12; temperature regulator 13; rotary motor 14; connecting rod 15; laser sensor 16; hydraulic cylinder 17. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model. Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.
[0020] Please refer to Figure 1 and Figure 2 , a capacitance detection device, comprising a detection bottom plate 1 and a detection top plate 2. The detection bottom plate 1 and the detection top plate 2 are connected by a lifting device. A plurality of groups of detection contacts 3 for connecting capacitors to be measured, a capacitance indicator 4, and a controller 5 are arranged on the detection bottom plate 1. Any group of the detection contacts 3 is correspondingly connected in series with a detection resistor 6. One end of the detection contact 3 is connected to one end of the detection resistor 6, and the other end of the detection contact 3 is grounded. The other end of the detection resistor 6 is connected to a first power supply 7 through a first switch 11. Both ends of the series connection of the detection contact 3 and the detection resistor 6 are connected in parallel with a second switch 10. The plurality of detection resistors 6 are respectively connected in parallel with the capacitance indicator 4. The lifting device, the capacitance indicator 4, and the controller 5 are all connected to a second power supply 8;
[0021] A detection groove 9 corresponding to the number of groups of the detection contacts 3 is formed on the detection top plate 2. The detection groove 9 is correspondingly arranged directly above the detection contacts 3. A temperature control mechanism is installed on the side wall of the detection groove 9, and a laser detection mechanism is installed on the top of the detection groove 9. The first switch 11, the second switch 10, the temperature control mechanism, and the laser detection mechanism are respectively connected to the controller 5. The temperature control mechanism and the laser detection mechanism are both connected to the second power supply 8.
[0022] In practical applications, the detection contact 3 and the detection resistor 6 are both powered by the first power supply 7, and the lifting device, the capacitance indicator 4, the controller 5, the temperature control mechanism, and the laser detection mechanism are all powered by the second power supply 8 to avoid interfering with the detection power signal. The controller 5 can be a PLC controller 5, which will not be elaborated in the specification. Before the detection, the controller 5 controls the lifting device to raise the detection top plate 2, and simultaneously disconnects the first switch 11 and the second switch 10 through the controller 5. After connecting the capacitor to be measured with the detection contact 3, the controller 5 controls the lifting device to lower the detection top plate 2, so that the capacitor to be measured is placed in the corresponding detection groove 9, and the first switch 11 is connected. The capacitor to be measured is charged through the detection resistor 6, and the temperature control mechanism is turned on to simulate the operating environment temperature of the capacitor to be measured. After the charging is completed, the controller 5 disconnects the first switch 11 and connects the second switch 10, and discharges the capacitor to be measured through the detection resistor 6. During this process, the capacitance indicator 4 is used to determine whether the charging and discharging of the capacitor to be measured meet the standards. If not, an alarm indication is issued for the non-compliant capacitor. At the same time, the controller 5 controls the laser detection mechanism to detect and determine whether the capacitor to be measured is bulged to screen out the damaged capacitors; the utility model can perform charging and discharging detection on multiple capacitors to be measured, and can simulate the operating environment temperature of the capacitor to be measured, making the detection results more accurate and more valuable for reference, and can screen out the non-compliant capacitors to be measured through the bulging detection.
[0023] Please refer to Figure 1 and Figure 2 As shown in, the temperature control mechanism includes a temperature control component 12 installed on the side wall of the detection groove 9, and a temperature regulator 13 for adjusting the temperature of the temperature control component 12. The temperature regulator 13 is electrically connected to the controller 5. In this embodiment, a heater is provided in the temperature control component 12. The controller 5 controls the temperature regulator 13 to adjust the temperature of the temperature control component 12, and controls the ambient temperature of the capacitor 2 to be measured placed in the detection groove 9 within the operating temperature range of the capacitor to be measured to simulate the operating scenario of the capacitor to be measured, making the detection results of the capacitor to be measured more accurate and more valuable for reference.
[0024] Please refer to Figure 1 and Figure 2, the laser detection mechanism includes a rotary motor 14 installed on the detection top plate 2. The output shaft of the rotary motor 14 extends vertically and directly faces the axis of the capacitor to be measured, and is drivingly connected to a horizontally arranged connecting rod 15. One end of the connecting rod 15 is connected to the rotary motor 14, and the other end of the connecting rod 15 is connected to a laser sensor 16 for detecting the bulge of the capacitor to be measured. Both the rotary motor 14 and the laser sensor 16 are electrically connected to the controller 5. In this embodiment, the controller 5 controls the rotary motor 14 to drive the connecting rod 15 to rotate circumferentially, driving the laser sensor 16 to rotate along the top edge of the capacitor to be measured. When the capacitor to be measured has a bulge, the light is blocked, and the laser sensor 16 feeds back an abnormal signal to the controller 5, thereby screening out the damaged capacitors to be measured.
[0025] Please refer to Figure 1 and Figure 2 , the connecting rod 15 includes a telescopic adjusting rod, and the telescopic adjusting rod is connected to the controller 5. In this embodiment, the controller 5 can control and adjust the length of the telescopic adjusting rod according to the size of the capacitor to be measured, so as to realize the detection of capacitors to be measured with different sizes.
[0026] Please refer to Figure 1 and Figure 2 , the lifting device includes a plurality of hydraulic cylinders 17. One end of the hydraulic cylinder 17 is fixedly connected to the detection bottom plate 1, and the other end is fixedly connected to the detection top plate 2. In this embodiment, the controller 5 controls the plurality of hydraulic cylinders 17 to expand and contract simultaneously to realize the adjustment of the lifting height of the detection top plate 2.
[0027] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A capacitance detection device, characterized in that: It includes a detection bottom plate (1) and a detection top plate (2). The detection bottom plate (1) is connected to the detection top plate (2) through a lifting device. Multiple groups of detection contacts (3) for connecting the capacitor to be measured, a capacitor indicator (4), and a controller (5) are arranged on the detection bottom plate (1). Any group of the detection contacts (3) is correspondingly connected in series with a detection resistor (6). One end of the detection contact (3) is connected to one end of the detection resistor (6), and the other end of the detection contact (3) is grounded. The other end of the detection resistor (6) is connected to a first power supply (7) through a first switch (11). Both ends of the series connection of the detection contact (3) and the detection resistor (6) are connected in parallel with a second switch (10). Multiple detection resistors (6) are respectively connected in parallel with the capacitor indicator (4). The lifting device, the capacitor indicator (4), and the controller (5) are all connected to a second power supply (8); Detection grooves (9) corresponding to the number of groups of the detection contacts (3) are formed on the detection top plate (2). The detection grooves (9) are correspondingly arranged directly above the detection contacts (3). A temperature control mechanism is installed on the side wall of the detection groove (9), and a laser detection mechanism is installed on the top of the detection groove (9). The first switch (11), the second switch (10), the temperature control mechanism, and the laser detection mechanism are respectively connected to the controller (5). The temperature control mechanism and the laser detection mechanism are both connected to the second power supply (8).
2. The capacitance detection device according to claim 1, characterized in that The temperature control mechanism includes a temperature control component (12) installed on the side wall of the detection groove (9), and a temperature regulator (13) for adjusting the temperature of the temperature control component (12). The temperature regulator (13) is electrically connected to the controller (5).
3. A capacitance detection device according to claim 1, wherein, The laser detection mechanism includes a rotating motor (14) installed on the detection top plate (2). The output shaft of the rotating motor (14) vertically extends out directly facing the axis of the capacitor to be measured and is drivingly connected to a horizontally arranged connecting rod (15). One end of the connecting rod (15) is connected to the rotating motor (14), and the other end of the connecting rod (15) is connected to a laser sensor (16) for detecting the bulge of the capacitor to be measured. The rotating motor (14) and the laser sensor (16) are both electrically connected to the controller (5).
4. A capacitance detection device according to claim 3, characterized in that, The connecting rod (15) includes a telescopic adjusting rod, and the telescopic adjusting rod is connected to the controller (5).
5. A capacitance detection device according to claim 1, characterized in that The lifting device includes a plurality of hydraulic cylinders (17). One end of the hydraulic cylinder (17) is fixedly connected to the detection bottom plate (1), and the other end is fixedly connected to the detection top plate (2).