阅读说明：本技术 一种芯包组在线耐久性检测装置及方式 (Core package group on-line durability detection device and mode ) 是由 丁继华 曹国栋 谭剑 于 2021-08-20 设计创作，主要内容包括：本发明公开了一种芯包组在线耐久性检测装置及方式,属于电容器耐久性检测技术领域。一种芯包组在线耐久性检测装置及方式,包括检测底座、设于检测底座上端一侧的电容器纹波电源箱和设于检测底座上端另一侧的高低温试验箱,所述高低温试验箱内部设于用于对铝电解电容器芯包组进行耐久性检测的耐久性检测机构,通过将多个电容器芯包组合焊接成芯包组,对芯包组单独进行耐久性检测,实现了增加产品容错率的效果,减少成本,通过芯包安装组件和芯包接线组件的相互配合,能够快速的对铝电解电容器芯包组进行固定和接线,整体安装时间较短,解决了传统铝电解电容器芯包半成品无法做耐久性检测的问题。(The invention discloses a device and a method for detecting the durability of a core package group on line, belonging to the technical field of capacitor durability detection. The utility model provides an online durability detection device of core package group and mode, is including detecting the base, locating the capacitor ripple power supply box that detects base upper end one side and locating the high low temperature test box that detects base upper end opposite side, the inside durability detection mechanism that is used for carrying out the durability detection to aluminium electrolytic capacitor core package group that locates of high low temperature test box through welding into the core package group with a plurality of capacitor core package combination, carries out the durability detection alone to the core package group, has realized the effect that increases the product fault-tolerant rate, and the cost is reduced, through mutually supporting of core package installation component and core package wiring subassembly, can be quick fix and the wiring to aluminium electrolytic capacitor core package group, whole installation time is shorter, has solved the problem that traditional aluminium electrolytic capacitor core package semi-manufactured goods can't do the durability detection.)

1. The on-line durability detection device for the core package group comprises a detection base (1), a capacitor ripple power supply box (2) arranged on one side of the upper end of the detection base (1) and a high-low temperature test box (3) arranged on the other side of the upper end of the detection base (1), and is characterized in that a durability detection mechanism (4) for performing durability detection on an aluminum electrolytic capacitor core package group (7) is arranged in the high-low temperature test box (3);

the durability detection mechanism (4) comprises a core package installation component (5) arranged below the inside of the high-low temperature test box (3) and used for installing an aluminum electrolytic capacitor core package group (7) and a core package wiring component (6) arranged above the inside of the high-low temperature test box (3) and used for wiring the aluminum electrolytic capacitor core package group (7), wherein the aluminum electrolytic capacitor core package group (7) is composed of a plurality of capacitor core packages (701) and an L-shaped test plate (702), and a leading-out strip at the upper end of the capacitor core packages (701) is connected with the lower end of the L-shaped test plate (702) through tin soldering.

2. The on-line core package durability detection device according to claim 1, wherein the core package wiring assembly (6) comprises two electric telescopic rods (610) symmetrically arranged at the upper end of the high-low temperature test box (3) and a sliding shell (601) slidably arranged above the inside of the high-low temperature test box (3), and the output ends of the two electric telescopic rods (610) are connected with the upper end of the sliding shell (601);

a sliding block (602) is arranged in the middle of the sliding shell (601) in a sliding mode, rotating rods are arranged at two ends of the sliding block (602), sliding chutes for the sliding rods to slide are formed in two sides of the sliding shell (601), a sliding rod (603) is arranged in the middle of the sliding block (602) in a sliding mode, a return spring (609) is sleeved in the middle of the upper end of the sliding rod (603), one end of the return spring (609) is connected with the upper end of the sliding block (602), and the other end of the return spring (609) is connected with an annular bump in the middle of the sliding rod (603);

a shell (605) is arranged at the lower end of the sliding rod (603), a bidirectional screw (606) is rotatably arranged in the middle of the shell (605), the bidirectional screw (606) is symmetrically provided with two locking plates (607) through threaded connection, the lower ends of the locking plates (607) are provided with fixed copper bars (608) on the outer side of the shell (605), and the fixed copper bars (608) are arranged on the inner side of the locking plates (607);

the upper end of the sliding rod (603) is provided with a positive output line, the sliding rod (603) is hollow inside, a wire is arranged in the inner cavity, the upper end of the wire is electrically connected with the positive output line, and the upper end of the wire is electrically welded with the upper end of the fixed copper bar (608).

3. The on-line durability detection device for the core package group according to claim 1, wherein the core package installation component (5) comprises a casing (501) arranged at the bottom of the high-low temperature test box (3), a driving motor (509) arranged at the outer side of the high-low temperature test box (3) and a metal disc (502) rotatably arranged below the inner part of the high-low temperature test box (3), a driving screw rod (508) is arranged in the casing (501), the output end of the driving motor (509) is connected with one end of the driving screw rod (508), an inverted T-shaped driving block (507) is arranged in the middle of the driving screw rod (508) through threaded connection, and two hinge seats (506) are symmetrically arranged at the upper end of the casing (501);

the middle part of the lower end of the metal disc (502) is provided with a mounting plate (503), two ends of the mounting plate (503) are hinged with two rotating rods (504), the lower ends of the two rotating rods (504) are respectively hinged with a hinge seat (506) arranged below, the middle part of the lower end of the mounting plate (503) is provided with a driving rod (505), and the lower end of the driving rod (505) is hinged with the upper end of an inverted T-shaped driving block (507);

the steel balls are laid at the bottom of the metal disc (502), two wave-shaped fixing blocks (510) are symmetrically arranged above the inner side wall of the metal disc (502) in a sliding mode, a negative output line is arranged on one side of the lower end of the metal disc (502), and the negative output line is connected with an electrode plate at the bottom of the metal disc (502).

4. The on-line durability detection device for the core package assembly according to claim 3, wherein the material of one side of the wave-shaped fixing block (510) close to the capacitor core package (701) is a flame-retardant sponge, and the width of the upper end of the wave-shaped fixing block (510) is greater than the width of the lower end of the wave-shaped fixing block (510).

5. The on-line durability testing apparatus of a chipset according to claim 3, wherein the metal plate (502) is connected to the mounting plate (503) by a connecting bolt.

6. The on-line durability detection device of the core pack according to claim 3, wherein the joint of the driving rod (505) and the inverted T-shaped driving block (507) is in clearance fit.

7. The on-line durability detection device for the chipset according to claim 2, wherein the positive output line is electrically connected to a power output terminal of the capacitor ripple power box (2), the negative output line is connected to a power input terminal of the capacitor ripple power box (2), a signal output terminal of the capacitor ripple power box (2) and a signal output terminal of the high-low temperature test box (3) are electrically connected to a signal input terminal of an external controller, and the signal output terminal of the external controller is electrically connected to the signal input terminal of the capacitor ripple power box (2), the signal input terminal of the high-low temperature test box (3) and a signal input terminal of a display screen.

8. The on-line durability detection device and method for the chipset according to claim 1, characterized by comprising the following steps:

A. firstly, selecting a proper test board according to the magnitude of test current to avoid the test board from being damaged due to overlarge current, and then connecting a plurality of capacitor core packages (701) with an L-shaped test board (702) through soldering to form an aluminum electrolytic capacitor core package group (7);

B. then the welded aluminum electrolytic capacitor core pack group (7) is placed into a metal disc (502) which is placed stably, steel balls are paved at the bottom of the metal disc (502), and the total capacity of the steel balls is 1/3 of the internal volume of the metal disc (502).

C. The electric telescopic rod (610) is started, the sliding shell (601) descends to a proper height, the bidirectional screw (606) is screwed down, the locking plate (607) clamps the upper end of the L-shaped test plate (702) and fixes the copper bar (608) to be in contact with the L-shaped test plate (702), the positive output line is electrically connected with the power output end of the capacitor ripple power box (2), and the negative output line is connected with the power input end of the capacitor ripple power box (2).

D. The high-low temperature test box (3) starts to work after being electrified, the internal temperature of the high-low temperature test box (3) is raised to 105 +/-2 ℃, the driving motor (509) is started to enable the metal disc (502) to rotate in the high-low temperature test box (3), so that the aluminum electrolytic capacitor core pack group (7) is uniformly heated, rated voltage is applied through the capacitor ripple power supply box (2), data information of the aluminum electrolytic capacitor core pack group (7) such as capacity change, loss tangent, equivalent series resistance, leakage current and the like in the rated voltage is recorded, and the appearance condition of the aluminum electrolytic capacitor core pack group (7) is checked through manual observation.

E. And integrating the measured data of a plurality of groups by an external data processor, drawing a time fitting curve in the same coordinate system, processing by corresponding software to obtain a core package group on-line durability detection data distribution map, and displaying on a display screen.

Technical Field

The invention relates to the technical field of capacitor durability detection, in particular to a device and a method for detecting the durability of a core package on line.

Background

Capacitors are elements that store electricity and electrical energy and are one of the most commonly used electronic components. The filter has the functions of isolating the direct current of a circuit mainly in an alternating current mode, storing charges and releasing the charges, has a good filtering machine, can output a pulse signal in a smooth mode, and has the important basis of reflecting the service life of a capacitor.

At present, test samples of a capacitor durability test are generally finished capacitors, online durability detection of the finished capacitors is rapid and convenient, but the capacitor durability test has long test time and more charging and discharging times, so that the test samples are easily scrapped, and the test cost is increased.

Disclosure of Invention

The invention aims to: in order to solve the above problems, an apparatus and method for detecting on-line durability of a core package are provided.

In order to achieve the purpose, the invention adopts the following technical scheme:

the on-line durability detection device for the core package group comprises a detection base, a capacitor ripple power supply box arranged on one side of the upper end of the detection base and a high-low temperature test box arranged on the other side of the upper end of the detection base, wherein a durability detection mechanism for performing durability detection on the aluminum electrolytic capacitor core package group is arranged in the high-low temperature test box;

the durability detection mechanism comprises a core package installation component arranged below the inside of the high-low temperature test box and used for installing an aluminum electrolytic capacitor core package group and a core package wiring component arranged above the inside of the high-low temperature test box and used for wiring the aluminum electrolytic capacitor core package group, wherein the aluminum electrolytic capacitor core package group is composed of a plurality of capacitor core packages and an L-shaped test plate, and a lead-out strip at the upper end of each capacitor core package is connected with the lower end of the L-shaped test plate through soldering.

As a further description of the above technical solution:

the core cladding wiring assembly comprises two electric telescopic rods symmetrically arranged at the upper end of the high-low temperature test box and a sliding shell arranged above the inside of the high-low temperature test box in a sliding manner, and the output ends of the two electric telescopic rods are connected with the upper end of the sliding shell;

the middle part of the sliding shell is provided with a sliding block in a sliding manner, rotating rods are arranged at two ends of the sliding block, sliding chutes for the rotating rods to slide are formed in two sides of the sliding shell, a sliding rod is arranged in the middle part of the sliding block in a sliding manner, a return spring is sleeved in the middle part of the upper end of the sliding rod, one end of the return spring is connected with the upper end of the sliding block, and the other end of the return spring is connected with an annular lug in the middle part of the sliding rod;

the lower end of the sliding rod is provided with a shell, the middle of the shell is rotatably provided with a bidirectional screw, the bidirectional screw is symmetrically provided with two locking plates through threaded connection, the lower ends of the locking plates are provided with fixed copper strips on the outer side of the shell, and the fixed copper strips are arranged on the inner sides of the locking plates;

the utility model discloses a slide bar, including slide bar, wire, fixed copper bar, slide bar upper end, the slide bar upper end is equipped with anodal output line, the inside cavity of slide bar is equipped with the wire in the inside cavity, the wire upper end is connected with anodal output line electricity, wire upper end and fixed copper bar upper end electric welding are connected.

As a further description of the above technical solution:

the core package mounting assembly comprises a machine shell arranged at the bottom of the high-low temperature test box, a driving motor arranged on the outer side of the high-low temperature test box and a metal disc rotatably arranged below the inner part of the high-low temperature test box, a driving screw rod is arranged in the machine shell, the output end of the driving motor is connected with one end of the driving screw rod, an inverted T-shaped driving block is arranged in the middle of the driving screw rod through threaded connection, and two hinge seats are symmetrically arranged at the upper end of the machine shell;

the middle part of the lower end of the metal disc is provided with an installation plate, two ends of the installation plate are hinged with two rotating rods, the lower ends of the two rotating rods are respectively hinged with a hinge seat arranged below the two rotating rods, the middle part of the lower end of the installation plate is provided with a driving rod, and the lower end of the driving rod is hinged with the upper end of an inverted T-shaped driving block;

the bottom of the metal disc is paved with steel balls, two wave-shaped fixing blocks are symmetrically arranged above the side wall inside the metal disc in a sliding mode, a negative electrode output line is arranged on one side of the lower end of the metal disc, and the negative electrode output line is connected with an electrode plate at the bottom of the metal disc.

As a further description of the above technical solution:

the material that wave type fixed block is close to electric capacity core package one side is fire-retardant sponge, wave type fixed block upper end width is greater than wave type fixed block lower extreme width.

As a further description of the above technical solution:

the metal disc is connected with the mounting plate through a connecting bolt.

As a further description of the above technical solution:

the hinged position of the driving rod and the inverted T-shaped driving block is in clearance fit.

As a further description of the above technical solution:

the positive electrode output line is electrically connected with the power output end of the capacitor ripple power box, the negative electrode output line is connected with the power input end of the capacitor ripple power box, the signal output end of the capacitor ripple power box and the signal output end of the high and low temperature test box are electrically connected with the signal input end of an external controller, and the signal output end of the external controller is electrically connected with the signal input end of the capacitor ripple power box, the signal input end of the high and low temperature test box and the signal input end of a display screen.

As a further description of the above technical solution:

the method comprises the following steps:

A. firstly, selecting a proper test board according to the magnitude of test current to avoid the test board from being damaged due to overlarge current, and then connecting a plurality of capacitor core packages with an L-shaped test board through soldering to form an aluminum electrolytic capacitor core package group;

B. and then placing the welded aluminum electrolytic capacitor core pack group into a stably placed metal disc, wherein the bottom of the metal disc is fully paved with steel balls, and the total volume of the steel balls is 1/3 of the internal volume of the metal disc.

C. The electric telescopic rod is started, the sliding shell descends to a proper height, the bidirectional screw is screwed down to enable the locking plate to clamp the upper end of the L-shaped test plate and fix the copper bar to be in contact with the L-shaped test plate, the positive output line is electrically connected with the power output end of the capacitor ripple power box, and the negative output line is connected with the power input end of the capacitor ripple power box.

D. The high-low temperature test box starts to work after being electrified, the temperature in the high-low temperature test box is raised to 105 +/-2 ℃, the driving motor is started to enable the metal disc to rotate in the high-low temperature test box, so that the aluminum electrolytic capacitor core pack group is uniformly heated, rated voltage is applied through the capacitor ripple power box, data information such as content change, loss tangent, equivalent series resistance and leakage current of the aluminum electrolytic capacitor core pack group in the rated voltage is recorded, and the appearance condition of the aluminum electrolytic capacitor core pack group is checked through manual observation.

E. And integrating the measured data of a plurality of groups by an external data processor, drawing a time fitting curve in the same coordinate system, processing by corresponding software to obtain a core package group on-line durability detection data distribution map, and displaying on a display screen.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. according to the invention, the plurality of capacitor core packages are combined and welded into the core package group, and the durability of the core package group is detected independently, so that the effect of increasing the fault tolerance of the product is realized, the cost is reduced, the core package group of the aluminum electrolytic capacitor can be rapidly fixed and wired through the mutual matching of the core package mounting assembly and the core package wiring assembly, the integral mounting time is short, and the problem that the durability of a traditional aluminum electrolytic capacitor core package semi-finished product cannot be detected is solved.

2. According to the invention, the Robert link mechanism is formed by mutually matching the mounting plate, the rotating rod and the driving rod, and the metal disc rotates in the high-low temperature test box by utilizing the special motion track of the Robert link mechanism, namely, the special motion track makes approximate linear motion at a point outside a connecting line of two end points of the rotating rod, so that the problem of uneven heating of the core package group of the aluminum electrolytic capacitor is solved, and the problem of fluctuation of experimental data caused by uneven distribution of steel beads in the metal disc is also solved.

3. According to the invention, the L-shaped test board is fixed through the core cladding wiring assembly, so that the L-shaped test board can be electrically connected with the L-shaped test board when the L-shaped test board rotates at any angle, and the phenomenon that the joint of a metal clamp and a lead is easy to tear due to the fact that the traditional metal clamp clamps the test board is avoided, so that the rotation angle and the rotation times of the core cladding assembly of the aluminum electrolytic capacitor in the space are increased, and the service life of the durability detection mechanism is greatly prolonged.

Drawings

FIG. 1 is a schematic structural diagram of a durability detection mechanism provided according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram illustrating a core package mounting assembly provided in accordance with an embodiment of the present invention;

fig. 3 is a schematic structural diagram illustrating a core package wiring assembly according to an embodiment of the present invention;

FIG. 4 is an enlarged schematic view A of FIG. 3 provided in accordance with an embodiment of the present invention;

FIG. 5 shows a schematic cross-sectional view of a sliding shell provided in accordance with an embodiment of the invention;

fig. 6 is a schematic diagram illustrating rotation of a core wiring assembly according to an embodiment of the present invention;

figure 7 illustrates a schematic rotational view of a core package mounting assembly provided in accordance with an embodiment of the present invention;

FIG. 8 is a schematic diagram illustrating a core-pack structure of an aluminum electrolytic capacitor provided according to an embodiment of the present invention;

FIG. 9 is a schematic diagram of a durability detection circuit provided according to an embodiment of the invention.

Illustration of the drawings: 1. detecting a base; 2. a capacitor ripple power supply box; 3. a high and low temperature test chamber; 4. a durability detection mechanism; 5. a core package mounting assembly; 6. a core cladding wiring assembly; 7. a core package group of the aluminum electrolytic capacitor; 601. a sliding shell; 602. a slider; 603. a slide bar; 605. a housing; 606. a bidirectional screw; 607. a locking plate; 608. fixing the copper strip; 609. a return spring; 610. an electric telescopic rod; 501. a housing; 502. a metal disc; 503. mounting a plate; 504. rotating the rod; 505. a drive rod; 506. a hinged seat; 507. an inverted T-shaped drive block; 508. driving the screw rod; 509. a drive motor; 510. a wave-shaped fixed block; 701. a capacitor core package; 702. l-shaped test plates.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 9, the present invention provides a technical solution:

an on-line durability detection device for a core package group comprises a detection base 1, a capacitor ripple power supply box 2 arranged on one side of the upper end of the detection base 1 and a high-low temperature test box 3 arranged on the other side of the upper end of the detection base 1, wherein a durability detection mechanism 4 for performing durability detection on an aluminum electrolytic capacitor core package group 7 is arranged in the high-low temperature test box 3;

the durability detection mechanism 4 comprises a core package installation component 5 arranged below the inside of the high-low temperature test box 3 and used for installing an aluminum electrolytic capacitor core package group 7, and a core package wiring component 6 arranged above the inside of the high-low temperature test box 3 and used for wiring the aluminum electrolytic capacitor core package group 7, wherein the aluminum electrolytic capacitor core package group 7 is composed of a plurality of capacitor core packages 701 and an L-shaped test plate 702, and a lead-out strip at the upper end of the capacitor core packages 701 is connected with the lower end of the L-shaped test plate 702 through tin soldering.

Further, the core cladding wiring assembly 6 comprises two electric telescopic rods 610 symmetrically arranged at the upper end of the high-low temperature test box 3 and a sliding shell 601 slidably arranged above the inside of the high-low temperature test box 3, and the output ends of the two electric telescopic rods 610 are connected with the upper end of the sliding shell 601;

a sliding block 602 is arranged in the middle of the sliding shell 601 in a sliding manner, rotating rods are arranged at two ends of the sliding block 602, sliding chutes for the sliding rods to slide are formed in two sides of the sliding shell 601, a sliding rod 603 is arranged in the middle of the sliding block 602 in a sliding manner, a return spring 609 is sleeved in the middle of the upper end of the sliding rod 603, one end of the return spring 609 is connected with the upper end of the sliding block 602, and the other end of the return spring 609 is connected with an annular bump in the middle of the sliding rod 603;

a shell 605 is arranged at the lower end of the sliding rod 603, a bidirectional screw 606 is rotatably arranged in the middle of the shell 605, two locking plates 607 are symmetrically arranged on the bidirectional screw 606 through threaded connection, fixed copper bars 608 are arranged at the lower ends of the locking plates 607 and on the outer side of the shell 605, and the fixed copper bars 608 are arranged on the inner sides of the locking plates 607;

the upper end of the sliding rod 603 is provided with a positive electrode output line, the sliding rod 603 is hollow, a wire is arranged in the inner cavity, the upper end of the wire is electrically connected with the positive electrode output line, and the upper end of the wire is electrically welded with the upper end of the fixed copper bar 608.

Further, the core package installation assembly 5 comprises a casing 501 arranged at the bottom of the high-low temperature test box 3, a driving motor 509 arranged at the outer side of the high-low temperature test box 3 and a metal disc 502 rotatably arranged at the lower part in the high-low temperature test box 3, a driving screw 508 is arranged in the casing 501, the output end of the driving motor 509 is connected with one end of the driving screw 508, an inverted-T-shaped driving block 507 is arranged in the middle of the driving screw 508 through threaded connection, and two hinge seats 506 are symmetrically arranged at the upper end of the casing 501;

the middle part of the lower end of the metal disc 502 is provided with a mounting plate 503, two ends of the mounting plate 503 are hinged with two rotating rods 504, the lower ends of the two rotating rods 504 are respectively hinged with a hinge seat 506 arranged below, the middle part of the lower end of the mounting plate 503 is provided with a driving rod 505, and the lower end of the driving rod 505 is hinged with the upper end of an inverted T-shaped driving block 507;

the bottom of the metal disc 502 is paved with steel balls, two wave-shaped fixing blocks 510 are symmetrically arranged above the inner side wall of the metal disc 502 in a sliding mode, a negative electrode output line is arranged on one side of the lower end of the metal disc 502, and the negative electrode output line is connected with an electrode plate at the bottom of the metal disc 502.

Further, the material that wave type fixed block 510 is close to electric capacity core package 701 one side is fire-retardant sponge, and wave type fixed block 510 upper end width is greater than wave type fixed block 510 lower extreme width, extrudees wave type fixed block 510 downwards just can produce the oppression to electric capacity core package 701 to it is spacing with aluminium electrolytic capacitor core package group 7, fire-retardant sponge can prevent effectively that electric capacity core package 701 from damaging damage wave type fixed block 510 after the burning.

Further, the metal plate 502 is connected to the mounting plate 503 by a connecting bolt, and if it is desired to replace the metal plate 502 of a different size, the connecting bolt at the lower end of the mounting plate 503 can be directly removed, and then the metal plate 502 of a different size can be replaced.

Further, the hinged position of the driving rod 505 and the inverted T-shaped driving block 507 is in clearance fit, and the Robert linkage mechanism does similar linear motion, so that the hinged position of the inverted T-shaped driving block 507 and the driving rod 505 is in clearance fit, and the displacement amount of the similar linear motion can be compensated.

Further, the positive electrode output line is electrically connected with the power output end of the capacitor ripple power box 2, the negative electrode output line is connected with the power input end of the capacitor ripple power box 2, the signal output end of the capacitor ripple power box 2 and the signal output end of the high-low temperature test box 3 are electrically connected with the signal input end of an external controller, and the signal output end of the external controller is electrically connected with the signal input end of the capacitor ripple power box 2, the signal input end of the high-low temperature test box 3 and the signal input end of a display screen.

Further, the method comprises the following steps:

A. firstly, selecting a proper test board according to the magnitude of test current to avoid the test board from being damaged due to overlarge current, and then connecting a plurality of capacitor core packages 701 with an L-shaped test board 702 through soldering to form an aluminum electrolytic capacitor core package group 7;

B. then the welded aluminum electrolytic capacitor core pack group 7 is placed into a metal disc 502 which is placed stably, steel balls are fully paved at the bottom of the metal disc 502, and the total capacity of the steel balls is 1/3 of the internal volume of the metal disc 502.

C. The electric telescopic rod 610 is started, the sliding shell 601 descends to a proper height, the bidirectional screw 606 is screwed down, the locking plate 607 clamps the upper end of the L-shaped test plate 702 and fixes the copper bar 608 to be in contact with the L-shaped test plate 702, the positive output line is electrically connected with the power output end of the capacitor ripple power box 2, and the negative output line is connected with the power input end of the capacitor ripple power box 2.

D. The high-low temperature test box 3 starts to work after being electrified, the temperature in the high-low temperature test box 3 is raised to 105 +/-2 ℃, the driving motor 509 is started to enable the metal disc 502 to rotate in the high-low temperature test box 3, the aluminum electrolytic capacitor core pack group 7 is enabled to be heated uniformly, rated voltage is applied through the capacitor ripple power box 2, data information such as capacity change, loss tangent, equivalent series resistance and leakage current of the aluminum electrolytic capacitor core pack group 7 in the rated voltage is recorded, and the appearance condition of the aluminum electrolytic capacitor core pack group 7 is checked through manual observation.

E. And integrating the measured data of a plurality of groups by an external data processor, drawing a time fitting curve in the same coordinate system, processing by corresponding software to obtain a core package group on-line durability detection data distribution map, and displaying on a display screen.

The working principle is as follows: when the test plate is used, a proper test plate is selected according to the magnitude of test current, the test plate is prevented from being damaged due to overlarge current, if 6 capacitor core packages 701 are connected in series, the test current is 6 times of the standard current of the 6 capacitor core packages, and then the plurality of capacitor core packages 701 are connected with the L-shaped test plate 702 through soldering, so that the aluminum electrolytic capacitor core package group 7 is manufactured;

placing an aluminum electrolytic capacitor core pack group 7 into a horizontally placed metal disc 502, fully paving steel balls at the bottom of the metal disc 502, wherein the total volume of the steel balls is 1/3 of the internal volume of the metal disc 502, contacting the lower end of the negative electrode of the aluminum electrolytic capacitor core pack group 7 with the upper ends of the steel balls, and placing two wave-shaped fixed blocks 510 into the metal disc 502 after the aluminum electrolytic capacitor core pack group 7 is placed so as to fix the aluminum electrolytic capacitor core pack group 7;

after the aluminum electrolytic capacitor core package group 7 is placed in the metal disc 502 to be fixed, the electric telescopic rod 610 is started, the electric telescopic rod 610 extends out to drive the sliding shell 601 to move downwards, so that the core package wiring component 6 integrally moves downwards, after the sliding shell 601 moves downwards to a proper position, the bidirectional screw 606 is screwed, so that the two locking plates 607 move oppositely, one side of the upper end of the L-shaped test plate 702 is clamped, meanwhile, the fixed copper bar 608 is in contact with the L-shaped test plate 702, after the L-shaped test plate 702 is clamped by the two locking plates 607, the positive output line at the upper end of the sliding rod 603 is electrically connected with the power output end of the capacitor ripple power box 2, the negative output line is connected with the power input end of the capacitor ripple power box 2, and the whole wiring work is completed;

after wiring is finished, the high-low temperature test box 3 is controlled to be electrified by the external controller to start working, the internal temperature of the high-low temperature test box 3 slowly rises to 105 +/-2 ℃, meanwhile, the external controller controls the driving motor 509 to be electrified and then to rotate positively, the driving motor 509 drives the driving screw rod 508 to rotate, the driving screw rod 508 rotates to drive the inverted T-shaped driving block 507 to move leftwards, so that the driving rod 505 is driven to rotate rightwards, the mounting plate 503 rotates rightwards under the limit of the two rotating rods 504, the metal plate 502 further rotates rightwards, so that the aluminum electrolytic capacitor core package group 7 rotates rightwards to be heated,

when the aluminum electrolytic capacitor core package group 7 rotates rightwards, the L-shaped test board 702 also rotates rightwards, so that the shell 605 integrally rotates rightwards for a certain angle, the sliding block 602 is driven to rotate for a certain angle in the sliding shell 601, and meanwhile, the sliding rod 603 moves upwards, so that the core package wiring assembly 6 can be firmly contacted with the L-shaped test board 702 even if the L-shaped test board 702 rotates;

the external controller controls the capacitor ripple power supply box 2 to be electrified, nominal voltage is applied to the aluminum electrolytic capacitor core package group 7, data information such as content change, loss tangent, equivalent series resistance and leakage current of the aluminum electrolytic capacitor core package group 7 in the nominal voltage is recorded, appearance conditions of the aluminum electrolytic capacitor core package group 7 are checked through manual observation, a plurality of measured data are integrated through the external data processor and drawn into a time fitting curve in the same coordinate system, and a core package group online durability detection data distribution graph is obtained through corresponding software processing and displayed on the display screen.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.