A testing device for energy storage batteries

Abstract

The present invention discloses a test device for energy storage batteries, which relates to the technical field of electrical performance test devices and includes a detection component. The detection component is a regular prism cylinder body, and each side wall of the detection component is a hollowed-out plate, on which probes are fixedly installed. By designing a rotatable multi-prism cylinder body structure and adopting a rotation adjustment method, the present invention can efficiently test PCB modules of various energy storage battery models without replacing or adjusting accessories. The present solution also has detailed designs: the design of the triangular prism cylinder body and the connection piece, which not only reduces the installation distance between adjacent detection components but also enables each detection component to have three hollowed-out plates, thereby meeting the test requirements of most energy storage batteries without replacing the hollowed-out plates and improving the practicability of the test device.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical performance testing devices, in particular to a testing device for energy storage batteries. Background Art

[0002] Energy storage batteries are used in a variety of applications, including electric vehicle charging stations, home energy storage systems, wind power plants, and solar power plants. In electric vehicle charging stations, energy storage batteries store electrical energy to charge electric vehicles during peak load periods, balancing the grid load.

[0003] The production of energy storage batteries involves the following steps: coating positive and negative electrode materials onto metal foil to form pole pieces, alternately stacking the pole pieces and separators and winding them to form a battery cell, placing the battery cell into a battery case and injecting electrolyte, followed by packaging, and finally, performance testing of the packaged energy storage battery. During performance testing, a test device is required to test the PCB module in the energy storage battery to determine if its quality meets standards. However, traditional testing devices often suffer from low testing efficiency and cannot meet the high-efficiency, high-quality requirements of modern energy storage battery production.

[0004] The Chinese utility model patent with the authorization publication number CN206906534U: A power battery module PCB test device discloses a probe fixture quick-change mechanism, in which the probe fixture lifting cylinder is located at the upper end of the probe fixture quick-change mechanism, and the top of the PCB module is fixed to the probe fixture quick-change mechanism, which has a technical advancement of convenient adjustment and changeover.

[0005] Although the above utility model patent can facilitate adjustment and replacement of the probe fixture plate when testing different energy storage batteries, it cannot guarantee that the same type of energy storage battery can be tested for a long time at the energy storage battery production site. Replacing the probe fixture plate is time-consuming and has low test efficiency. Therefore, the field urgently needs a testing device for energy storage batteries to solve the above problems. Summary of the Invention

[0006] The object of the present invention is to provide a technical solution for a testing device for energy storage batteries, so as to solve the problem of low efficiency of energy storage battery quality testing in the prior art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a testing device for an energy storage battery, comprising a lower support platform for carrying a PCB module, the lower support platform being equipped with a limit device capable of horizontally limiting the PCB module so that the PCB module can correspond to the position where the probe falls, the testing device also comprising a telescopic drive assembly supported and fixed above the lower support platform, the telescopic drive assembly being transmission-connected to a plurality of detection assemblies below;

[0008] The detection component includes a detection part. The detection part is a regular prism cylinder body. Each side wall of the detection part is a hollowed-out plate, and a probe is fixedly installed on the hollowed-out plate. The lowermost hollowed-out plate is always kept in a horizontal state. A rotating shaft is fixedly connected to the axis of the detection part. The rotating shaft is rotationally connected to the telescopic driving component with itself as the axis. The probe is signal-connected to a data collector;

[0009] The n hollowed-out plates in the same detection component are numbered from No. 1 to No. n; for the probes on the hollowed-out plates with the same number, the test data of all the probes enter the same test system; the same test system can test the PCB module in a kind of energy storage battery.

[0010] As a preferred solution, the detection part is a triangular prism cylinder body. The triangular prism cylinder body can minimize the installation distance between adjacent detection components, can adapt to more models of energy storage batteries. At the same time, each detection part can have three hollowed-out plates. Without replacing the hollowed-out plates, it can be applicable to most energy storage battery production sites. Without replacing the hollowed-out plates, it can test the PCB modules of three kinds of energy storage batteries.

[0011] As a preferred solution, the testing device further includes a support rod vertically fixedly connected to the upper surface of the lower support platform. The top of the support rod is fixedly installed with an upper support platform, and the telescopic driving component is fixedly installed in the center of the upper support platform.

[0012] As a preferred solution, the detection component further includes an end cover. The end cover includes an end cover body. The end cover body is a cover body with an equilateral triangle cross-section edge. Both ends of the detection part are over-in interference wrapped with the end cover body. An axial hole is centrally penetrated through the end cover body. Both ends of the rotating shaft penetrate through the axial hole, and the side wall of the rotating shaft is detachably fixedly connected to the hole wall of the axial hole. As a preferred solution, the side wall of the rotating shaft is in over-in interference fit with the hole wall of the axial hole.

[0013] As a preferred solution, the bottom end of the telescopic driving component is fixedly connected and drives a bearing frame; the rotating shaft uses bearings to be rotationally connected to the bearing frame at both ends with itself as the axis.

[0014] As a preferred solution, the end cover further includes a wire groove penetrating through the end cover body. The wire groove can penetrate through the wire, so that the testing device can conduct the test signal of the probe to the external controller in a wired manner to improve the accuracy of the test data.

[0015] As a preferred solution, connection pieces are fixedly connected to both ends of the inner wall of the hollowed-out plate. The ends of the connection pieces protrude from the ends of the hollowed-out plate. The end cover body over-in interference wraps the three connection pieces located at the same end. The thickness of the side wall of the end cover body is equal to the thickness of the hollowed-out plate.

[0016] As a preferred solution, the detection component further includes a circuit board, which is fixedly installed on the side wall of the hollow plate close to the rotating shaft, improving the operating stability of the testing device and reducing the assembly difficulty. The probe is electrically connected to the circuit board, and the circuit board is signal-connected to an external controller.

[0017] As a preferred solution, one end of the rotating shaft is drivingly connected to a rotary drive motor, and the rotary drive motor is fixedly connected to the bearing frame to drive the detection component to rotate by the rotary drive motor, improving the overall automation degree of the testing device;

[0018] As a preferred solution, the rotary drive motor is a servo motor, improving the rotation accuracy.

[0019] As a preferred solution, four elastic telescopic rods are fixedly installed at the bottom corners of the upper support platform, and a limiting strip is fixedly connected to the bottom ends of every two elastic telescopic rods. The limiting strip continuously maintains a horizontal state, and the side line in the length direction of the limiting strip is perpendicular to the side line in the length direction of the hollow plate;

[0020] Adopting the above technical solution, fix the energy storage battery to be tested on the lower support platform. First, use the telescopic drive component to lift the detection component to the highest point, and then control the rotary drive motor to drive the detection component to rotate for adjustment, so that the detection component adapted to the energy storage battery model is located at the bottom end. Then, use the telescopic drive component to drive the detection component to fall. At this time, the bottom plane of the end cover body will press down the limiting strip, and the elastic telescopic rod will elastically elongate. The limiting strip can tightly press against all end cover bodies upward by the elastic restoring force of the elastic telescopic rod, improving the stability of the detection component during the PCB module test.

[0021] Compared with the prior art, the beneficial effects of the present invention are: By designing a rotatable multi-prism cylinder structure and adopting a rotation adjustment method, the present invention can efficiently test the PCB modules of various energy storage battery models without replacing and adjusting accessories.

[0022] This solution also has detailed designs: the design of the triangular prism cylinder and the connection piece not only reduces the installation distance between adjacent detection components, but also enables each detection component to have three hollow plates. Therefore, without replacing the hollow plate, it can meet the test requirements of most energy storage batteries, improving the practicability of the testing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure in the falling state of the detection component in Embodiment 1 of the present invention;

[0024] Figure 2 It is a schematic diagram of the overall structure in the lifted state of the detection component in Embodiment 1 of the present invention;

[0025] Figure 3 for Figure 1 The main view;

[0026] Figure 4 for Figure 2 The main view;

[0027] Figure 5 This is an exploded view of the detection component structure in Example 1 of the present invention.

[0028] Figure 6 This is a schematic diagram of the detection component structure in Example 2 of the present invention.

[0029] Figure 7 This is a schematic diagram of the end cover structure in Example 1 of the present invention.

[0030] Numbers in the figure: 101, upper support platform; 102, lower support platform; 103, support rod; 201, telescopic drive assembly; 202, load-bearing frame; 203, rotating shaft; 204, rotary drive motor; 300, detection assembly; 310, end cover; 311, end cover body; 312, shaft hole; 313, cable trough; 320, detection component; 321, hollow plate; 322, circuit board; 323, probe; 324, connecting piece; 401, elastic telescopic rod; 402, limit strip. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Example 1: Figures 1 - 5 、 Figure 7 As shown, the present invention provides a testing device for an energy storage battery, including a lower support platform 102 for supporting a PCB module. A limiting device capable of horizontally limiting the PCB module is installed on the lower support platform 102, so that the PCB module can correspond to the position where the probe falls, thereby enabling the probe to efficiently test the PCB module. The testing device also includes a telescopic drive assembly 201 supported and fixed above the lower support platform 102. The telescopic drive assembly 201 is a cylinder, and a plurality of detection assemblies 300 are transmission-connected below the telescopic drive assembly 201.

[0033] The detection component 300 includes a detection part 320. The detection part 320 is a triangular prism cylinder. The triangular prism cylinder can minimize the installation distance between adjacent detection components 300, can adapt to more models of energy storage batteries. At the same time, each detection part 320 can have three hollow plates 321. Without replacing the hollow plates 321, it can be applicable to most energy storage battery production sites. Without the need to replace the hollow plates 321, it can perform PCB module tests on three types of energy storage batteries. Each side wall of the detection part 320 is a hollow plate 321. Probes 323 are fixedly installed on the hollow plates 321, and the lowermost hollow plate 321 is always kept in a horizontal state. A rotating shaft 203 is fixedly connected to the axis of the detection part 320. The rotating shaft 203 is rotationally connected to the telescopic driving component 201 with itself as the axis. The probes 323 are signal-connected to a data collector;

[0034] The 3 hollow plates 321 in the same detection component 300 are numbered from No. 1 to No. 3; for the hollow plates 321 with the same number, the test data of all the probes 323 enter the same test system; the same test system can test the PCB module in one type of energy storage battery;

[0035] Adopting the above technical solution, the telescopic driving component 201 controls the detection component 300 to descend, and can use the probes to perform quality tests on the PCB modules in the energy storage battery. After the test is completed, the telescopic driving component 201 controls the detection component 300 to ascend to test the next group of PCB modules; for PCB module tests on different models of energy storage batteries, select the test system suitable for the energy storage battery model, rotate and adjust the hollow plates 321 with the same number of the corresponding test system to the bottom end and keep the hollow plates 321 horizontal, and then use the telescopic driving component 201 to control the detection component 300 and the internal probes 323 to descend for PCB module quality tests.

[0036] The test device further includes a support rod 103 vertically fixed to the upper surface of the lower support platform 102. The top of the support rod 103 is fixedly installed with an upper support platform 101. The telescopic driving component 201 is fixedly installed at the center of the upper support platform 101.

[0037] The detection component 300 further includes an end cover 310. The end cover 310 includes an end cover body 311. The end cover body 311 is a cover body with an equilateral triangle cross-section edge. Both ends of the detection part 320 are over-included with the end cover body 311. A shaft hole 312 is centrally penetrated through the end cover body 311. Both ends of the rotating shaft 203 penetrate through the shaft hole 312, and the side wall of the rotating shaft 203 is in interference fit with the hole wall of the shaft hole 312.

[0038] The bottom end of the telescopic driving component 201 is fixedly connected and drives a bearing frame 202; the rotating shaft 203 uses bearings to be rotationally connected to the bearing frame 202 at both ends with itself as the axis.

[0039] The end cap 310 further includes a wire slot 313 penetratingly formed in the end cap body 311. The wire slot 313 can penetrate through the electric wire, enabling the test device to conduct the test signal of the probe 323 to an external controller in a wired manner, so as to improve the accuracy of the test data.

[0040] The detection component 320 further includes a circuit board 322. The circuit board 322 is fixedly installed on the side wall of the hollowed-out board 321 close to one side of the rotating shaft 203, which improves the operation stability of the test device and reduces the assembly difficulty. The probe 323 is electrically connected to the circuit board 322, and the circuit board 322 is signal-connected to an external controller.

[0041] One end of the rotating shaft 203 is drivingly connected to a rotation driving motor 204. The rotation driving motor 204 is fixedly connected to the bearing frame 202 to drive the detection component 300 to rotate by the rotation driving motor 204, so as to improve the overall automation degree of the test device;

[0042] The rotation driving motor 204 is a servo motor, which can improve the rotation accuracy.

[0043] Four elastic telescopic rods 401 are fixedly installed at the bottom corners of the bottom surface of the upper support platform 101. The elastic telescopic rods 401 are spring telescopic rods. The bottom ends of every two elastic telescopic rods 401 are jointly fixedly connected with a limiting strip 402. The limiting strip 402 continuously maintains a horizontal state. The side lines in the length direction of the limiting strip 402 are perpendicular to the side lines in the length direction of the hollowed-out board 321;

[0044] Adopting the above technical solution, the energy storage battery to be tested is fixed on the lower support platform 102. First, the detection component 300 is lifted to the highest point by the telescopic driving component 201, and then the rotation driving motor 204 is controlled to drive the detection component 300 to rotate for adjustment, so that the detection component 320 adapted to the model of the energy storage battery is located at the bottom end. Then, the detection component 300 is driven to fall by the telescopic driving component 201. At this time, the bottom plane of the end cap body 311 will press down the limiting strip 402, and the elastic telescopic rod 401 generates elastic elongation. The limiting strip 402 can tightly abut against all the end cap bodies 311 upward by the elastic restoring force of the elastic telescopic rod 401, so as to improve the stability of the detection component 300 during the PCB module test.

[0045] Embodiment 2, as Figure 6 shown, on the basis of the technical solution of Embodiment 1, the technical solution is added: connecting pieces 324 are fixedly connected to both ends of the inner wall of the hollowed-out board 321. The ends of the connecting pieces 324 protrude from the ends of the hollowed-out board 321. The end cap body 311 performs interference wrapping on the three connecting pieces 324 located at the same end. The side wall thickness of the end cap body 311 is equal to the thickness of the hollowed-out board 321;

[0046] With the above technical solution, the outer surface of the hollow plate 321 and the outer surface of the end cap body 311 can be located in the same plane, and the distance between adjacent detection components 300 can be further reduced.

[0047] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A test device for an energy storage battery, comprising a lower support table (102) for carrying a PCB module, characterized in that: The testing device further includes a telescopic driving assembly (201) supported and fixed above the lower support table (102), and a plurality of detection assemblies (300) are drivingly connected below the telescopic driving assembly (201); The detection assembly (300) includes a detection component (320). The detection component (320) is a triangular prism-shaped cylinder. Each side wall of the detection component (320) is a hollow plate (321). A probe (323) is fixedly installed on the hollow plate (321). The lowermost hollow plate (321) is always kept in a horizontal state. A rotating shaft (203) is fixedly connected to the axis of the detection component (320). The rotating shaft (203) is rotationally connected to the telescopic driving assembly (201) with itself as the axis. The probe (323) is signal-connected to a data collector; The 3 hollow plates (321) in the same detection assembly (300) are numbered from No. 1 to No. 3; for the hollow plates (321) with the same number, the test data of all the probes (323) enter the same test system; the same test system can test the PCB module in a kind of energy storage battery; The testing device further includes a support rod (103) vertically fixedly connected to the upper surface of the lower support table (102). An upper support table (101) is fixedly installed at the top of the support rod (103). The telescopic driving assembly (201) is fixedly installed in the center of the upper support table (101); Four elastic telescopic rods (401) are fixedly installed at the bottom corners of the bottom surface of the upper support table (101). The bottom ends of every two elastic telescopic rods (401) are jointly fixedly connected with a limiting strip (402). The limiting strip (402) is always kept in a horizontal state. The side line in the length direction of the limiting strip (402) is perpendicular to the side line in the length direction of the hollow plate (321).

2. The test device for an energy storage battery according to claim 1, wherein: The detection assembly (300) further includes an end cover (310). The end cover (310) includes an end cover body (311). The end cover body (311) is a cover body with an equilateral triangle cross-section edge. Both ends of the detection component (320) are over-included with the end cover body (311). An axial hole (312) is centrally penetrated through the end cover body (311). Both ends of the rotating shaft (203) penetrate through the axial hole (312). The side wall of the rotating shaft (203) is detachably fixedly connected with the hole wall of the axial hole (312).

3. The test device for an energy storage battery according to claim 2, wherein: The bottom end of the telescopic driving assembly (201) is fixedly connected and drives a bearing frame (202); the rotating shaft (203) uses itself as the axis, and both ends are rotationally connected to the bearing frame (202) by bearings.

4. A test device for energy storage batteries according to claim 2, characterized in that: The end cover (310) further includes a wire groove (313) penetratingly opened on the end cover body (311).

5. The test device for an energy storage battery according to claim 2, wherein: Connecting pieces (324) are fixedly connected to both ends of the inner wall of the hollow plate (321). The ends of the connecting pieces (324) protrude from the ends of the hollow plate (321). The end cover body (311) over-includes the three connecting pieces (324) located at the same end. The side wall thickness of the end cover body (311) is equal to the thickness of the hollow plate (321).

6. The test device for a energy storage battery according to claim 2, characterized in that: The detection component (320) further includes a circuit board (322), the circuit board (322) is fixedly installed on the side wall of the hollow board (321) close to the rotating shaft (203), the probe (323) is electrically connected to the circuit board (322), and the circuit board (322) is signal-connected to an external controller.

7. The test device for an energy storage battery according to claim 2, characterized in that: One end of the rotating shaft (203) is drivingly connected to a rotation driving motor (204), and the rotation driving motor (204) is fixedly connected to the carrying frame (202).

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