Aging test device for aluminum electrolytic capacitor

Abstract

The utility model discloses an aluminum electrolytic capacitor aging test device, and specifically relates to the capacitor aging test technology field, the aluminum electrolytic capacitor aging test device comprises a bottom cabinet, a detection head, a charger, an energy feedback device and a bidirectional DCDC converter, the upper end surface of the bottom cabinet is fixedly connected with a test bench, and the upper end surface of the test bench is provided with a tray; the tray can move back and forth in the length direction of the test board, a driving assembly is arranged at the joint of the tray and the test board, and the driving assembly comprises a forward and reverse motor installed on one side of the outer surface wall of the test board. According to the utility model, by arranging the charger and the energy feedback device, when the capacitor bank discharges, discharged electric energy can be collected, and then other capacitors are charged, so that waste of the electric energy is avoided, and the purpose of saving energy is achieved; and the problems of high energy consumption and heat generation caused by a large amount of heat generated during discharge due to discharge of a resistance box in the prior art are also solved, and the heat generated in the discharge process is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to capacitor aging test technical field, concretely relates to a kind of aluminum electrolytic capacitor aging test device. BACKGROUND

[0002] Capacitor is a kind of aluminum electrolytic capacitor aging test device and is used to store electric charge, and is widely used in various electrical equipment and power system, and needs to be subjected to aging test in production process, so as to monitor and determine its operating performance and service life, obtain relevant data of aging, as the basis for subsequent improvement of capacitor production;

[0003] In the capacitor aging test process, the capacitor is charged to repair the oxide film first, and the capacitor needs to be discharged to the next process after aging is completed, but the capacitor is generally directly discharged by using a discharge device, and the discharge device is a common resistance box, which directly converts the electric energy stored in the capacitor into heat energy and consumes it by using the resistance box. Although this discharge method is simple and easy to implement, the energy is mainly dissipated in the form of heat, resulting in large energy consumption, and it also causes heating. Moreover, the resistance discharge method does not have the function of energy recovery, resulting in one-time energy consumption each time, and the energy is not fully utilized, thereby causing waste of electric energy. SUMMARY

[0004] The utility model aims at providing a kind of aluminum electrolytic capacitor aging test device to solve the above-mentioned deficiencies in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of aluminum electrolytic capacitor aging test device, including bottom cabinet, detection head, charging machine, energy feedback device and bidirectional DCDC converter, the upper end surface of the bottom cabinet is fixedly connected with test table, the upper end surface of the test table is equipped with tray, the tray can move back and forth along the length direction of test table, the connecting portion of the tray and test table is equipped with drive assembly, the drive assembly includes positive and negative motor installed on one side of the outer wall of test table, the embedding groove reserved on the upper end surface of the test table is connected with lead screw, one end of the lead screw penetrates the test table and is connected with the output end of positive and negative motor, the external thread of the lead screw is connected with moving seat, the moving seat is clamped in the embedding groove of test table, and the upper end surface of the moving seat is connected with the tray.

[0006] The detection head is arranged above the test table, and the detection head is liftable, the upper end surface of the test table is fixedly connected to the frame body, the inner side wall of the frame body is provided with an electric telescopic rod, the free end of the electric telescopic rod is connected with the detection head, and the front wall of the bottom cabinet is hingedly connected with a cabinet door, and the upper end surface of the test table and located on one side of the frame body is provided with a controller.

[0007] Specifically, before the test, the tray is placed at the rightmost side of the test table, then the capacitor to be tested is placed on the tray in turn, then the lead screw is driven to rotate by the forward-reverse motor, at this time the lead screw is threadedly connected with the moving seat, the moving seat slides in the embedding groove of the test table, the tray with the capacitor is moved to the position right below the detection head, finally the detection head is driven to descend by the extension of the electric telescopic rod until it contacts with the capacitor, thus the aging test of the capacitor is realized.

[0008] Preferably, the charger and the energy feedback device are arranged in the bottom cabinet, and the energy stored in the capacitor is fed back to the charger through the energy feedback device.

[0009] Through the above technical scheme:

[0010] When the capacitor bank is discharged, the waste of electric energy is avoided, thereby achieving the purpose of energy saving, in addition, the problem that a large amount of heat is generated during discharge by using the existing resistor box to discharge, thereby causing large energy consumption and heat generation is solved, and the generation of heat during discharge is reduced.

[0011] Preferably, the bidirectional DCDC converter is arranged on the upper end surface of the test table, and the energy in the energy storage super capacitor is preferentially charged into the measured capacitor through the bidirectional DCDC converter when the measured capacitor bank is charged.

[0012] In the above technical scheme, the technical effects and advantages of the utility model are provided:

[0013] By arranging the charger and the energy feedback device, the aging test device has the function of collecting and reusing electric energy, when the capacitor bank is discharged, the energy stored in the capacitor is fed back to the charger through the energy feedback device, and the charger is used to charge other capacitors, thereby avoiding the waste of electric energy, achieving the purpose of energy saving, in addition, the problem that a large amount of heat is generated during discharge by using the existing resistor box to discharge, thereby causing large energy consumption and heat generation is solved, and the generation of heat during discharge is reduced, and the electric energy can also be fed back to the power grid through the energy feedback device, thereby significantly reducing the power consumption; when the measured capacitor bank needs to be discharged, the energy storage super capacitor is charged through the bidirectional DCDC converter, and the energy is transferred to the energy storage super capacitor, when the measured capacitor bank needs to be charged, the energy in the energy storage super capacitor can be preferentially charged into the measured capacitor through the bidirectional DCDC converter, and the part that is not enough is supplemented by the charger, the electric energy collection mode can be used alone, the electric energy in the capacitor discharge process is directly collected, the collected electric energy can be reused, and the use is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to make the technical scheme of the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments will be briefly introduced as follows. Obviously, the accompanying drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art based on these drawings.

[0015] Figure 1 It is a schematic view of the overall structure of the present application.

[0016] Figure 2 It is a schematic view of the opening of the cabinet door of the present application.

[0017] Figure 3 It is a schematic view of the capacitor bank charge-discharge test system with energy feedback device of the present application.

[0018] Figure 4 It is a schematic view of the electric energy collection system of the present application.

[0019] Figure 5 It is a schematic view of the connection between the tray and the driving assembly of the present application.

[0020] Explanation of reference signs:

[0021] 1, base cabinet; 2, test bench; 3, frame body; 4, tray; 5, electric telescopic rod; 6, detection head; 7, bidirectional DCDC converter; 8, cabinet door; 9, charger; 10, energy feedback device; 11, controller; 12, positive and negative motor; 13, screw rod; 14, moving seat. DETAILED DESCRIPTION

[0022] In order to make the technical scheme of the present application better understood by those skilled in the art, the present application will be further described in detail with reference to the accompanying drawings.

[0023] The present application provides an aluminum electrolytic capacitor aging test device as shown in Figure 1 , Figure 2 and Figure 5 , comprising:

[0024] The bottom cabinet 1, the detection head 6, the charging machine 9, the energy feedback device 10 and the bidirectional DCDC converter 7, the upper end surface of the bottom cabinet 1 is fixedly connected with a test table 2, the upper end surface of the test table 2 is provided with a tray 4, the tray 4 can move back and forth along the length direction of the test table 2, a driving assembly is arranged at the connecting position of the tray 4 and the test table 2, the driving assembly comprises a reversible motor 12 arranged on one side of the outer wall of the test table 2, a lead screw 13 is connected in the embedded groove reserved on the upper end surface of the test table 2, one end of the lead screw 13 penetrates through the test table 2 and is connected with the output end of the reversible motor 12, a moving seat 14 is threadedly connected with the outer surface of the lead screw 13, the moving seat 14 is clamped in the embedded groove of the test table 2, and the upper end surface of the moving seat 14 is connected with the tray 4.

[0025] Further, referring to Figure 1 and Figure 2 , the detection head 6 is arranged above the test table 2 and can be lifted, the upper end surface of the test table 2 is fixedly connected with a frame body 3, a telescopic electric rod 5 is arranged on the inner side wall of the frame body 3, the free end of the telescopic electric rod 5 is connected with the detection head 6, the front wall of the bottom cabinet 1 is hingedly connected with a cabinet door 8, and the upper end surface of the test table 2 and located on one side of the frame body 3 is provided with a controller 11.

[0026] Specifically, before testing, the tray 4 is placed at the rightmost side of the test table 2, then the capacitor to be tested is placed on the tray 4 in sequence, then the lead screw 13 is driven to rotate by the reversible motor 12, at this time, the lead screw 13 is threadedly connected with the moving seat 14, the moving seat 14 slides in the embedded groove of the test table 2, the tray 4 with the capacitor is moved to the position directly below the detection head 6, finally the detection head 6 is driven to descend by the telescopic electric rod 5 until the detection head 6 contacts the capacitor, so that the aging test of the capacitor can be realized.

[0027] The utility model provides a kind of aluminum electrolytic capacitor aging test device as Figure 3 , charging machine 9 and energy feedback device 10 are arranged in bottom cabinet 1, and the energy stored in capacitor is fed back to charging machine 9 by energy feedback device 10.

[0028] By the above technical solution:

[0029] When capacitor bank is discharged, energy waste is avoided, so that the purpose of energy saving is achieved, in addition, the problem that a large amount of heat is generated during discharge by using resistance box for discharge, resulting in large energy consumption and causing heating, is solved, and the generation of heat during discharge is reduced.

[0030] The utility model provides a kind of aluminum electrolytic capacitor aging test device as Figure 4The bidirectional DCDC converter 7 is installed on the upper end surface of the test table 2, and the energy storage super capacitor is charged through the bidirectional DCDC converter 7, and when the measured capacitor group is charged, the energy in the energy storage super capacitor can be preferentially charged into the measured capacitor through the bidirectional DCDC converter 7.

[0031] The above only describes certain exemplary embodiments of the present application by way of illustration, and it is needless to say that the described embodiments can be modified in various ways without departing from the spirit and scope of the present application for those skilled in the art. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present application.

Claims

1. An aging test device for aluminum electrolytic capacitors, characterized in that, include: The base cabinet (1) has a test platform (2) fixedly connected to its upper surface. The test platform (2) has a tray (4) on its upper surface, and the tray (4) can move back and forth along the length of the test platform (2). The detection head (6) is located above the test platform (2) and can be raised and lowered. A charger (9) and an energy feedback device (10) are provided in the cabinet (1). The energy stored in the capacitor is fed back to the charger (9) through the energy feedback device (10). A bidirectional DC-DC converter (7) is installed on the upper surface of the test bench (2). The bidirectional DC-DC converter (7) charges the energy storage supercapacitor and, when the capacitor bank under test is being charged, the energy in the energy storage supercapacitor can be preferentially charged into the capacitor under test through the bidirectional DC-DC converter (7).

2. The aging test device for aluminum electrolytic capacitors according to claim 1, characterized in that: The upper end face of the test bench (2) is fixedly connected to the frame (3). An electric telescopic rod (5) is installed on the inner side wall of the frame (3). The free end of the electric telescopic rod (5) is connected to the detection head (6).

3. The aging test device for aluminum electrolytic capacitors according to claim 1, characterized in that: The front wall of the base cabinet (1) is hinged with a cabinet door (8), and a controller (11) is installed on the upper surface of the test bench (2) and on one side of the frame (3).

4. The aging test device for aluminum electrolytic capacitors according to claim 1, characterized in that: A drive assembly is provided at the connection between the tray (4) and the test bench (2), and the drive assembly includes a forward and reverse motor (12) installed on one side of the outer wall of the test bench (2).

5. The aging test device for aluminum electrolytic capacitors according to claim 1, characterized in that: A lead screw (13) is connected to a pre-drilled groove on the upper surface of the test bench (2). One end of the lead screw (13) passes through the test bench (2) and is connected to the output end of the forward and reverse motor (12).

6. The aging test device for aluminum electrolytic capacitors according to claim 5, characterized in that: The lead screw (13) is externally threaded to a movable seat (14), which is fitted into a groove in the test bench (2), and the upper end face of the movable seat (14) is connected to the tray (4).

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