Auxiliary device for detecting internal structure change of battery during charging and discharging

Abstract

The utility model discloses an auxiliary device for detecting the internal structure change of a battery during charging and discharging, which belongs to the technical field of industrial CT (computed tomography) and comprises an X-axis mounting plate fixedly connected with the top of the inner wall of an industrial CT shielding room, X-axis sliding rails are symmetrically and fixedly connected onto the X-axis mounting plate, an X-axis cable sliding rail is fixedly connected to the outer side of one X-axis sliding rail, and an X-axis cable sliding rail is fixedly connected to the outer side of the other X-axis sliding rail. The X-axis sliding rail is connected with a Y-axis mounting plate in a sliding mode, the Y-axis mounting plate is symmetrically and fixedly connected with Y-axis sliding rails, the outer side of one Y-axis sliding rail is fixedly connected with a Y-axis cable sliding rail, the Y-axis sliding rails are fixedly connected with an R-axis bottom plate, the bottom of the R-axis bottom plate is fixedly connected with a sliding ring mounting piece, the sliding ring mounting piece is fixedly connected with an electric sliding ring, and the electric sliding ring is electrically connected with an overcurrent cable. During installation, the X-axis mounting plate is connected with the top of the inner wall of the industrial CT shielding room through a mounting hole site reserved in the X-axis mounting plate, bolts are used for connection, and an overcurrent cable is in butt joint with a stator outgoing line of the electric slip ring; a rotor outgoing line of the electric slip ring is in butt joint with an overcurrent cable with nodes fixed on the rotary table.

Description

Technical Field

[0001] The utility model belongs to the technical field of industrial CT, and particularly relates to an auxiliary device for detecting internal structure changes of a battery during charging and discharging. Background Art

[0002] Industrial CT refers to nuclear imaging technology applied in industry. Its basic principle is based on the weakening and absorption characteristics of radiation in the object to be detected. The absorption ability of the same substance to radiation is related to the nature of the substance. Therefore, by using X-rays or γ-rays emitted by radioactive nuclides or other radiation sources with certain energy and intensity, and the attenuation law and distribution in the object to be detected, it is possible to obtain detailed internal information of the object by a detector array, and finally display it in the form of an image by computer information processing and image reconstruction technology.

[0003] Industrial CT is widely used in industries such as automotive, materials, railway, aerospace, aviation, military, and national defense, providing important technical means for the successful launch of space launch vehicles, spacecraft and space vehicles, the development of aero-engines, the inspection and testing of large weapon systems, geological structure analysis, the speed increase and heavy load safety of railway vehicles, oil reserve prediction, and the quality determination of mechanical products.

[0004] With the development of new energy vehicles, the quality and safety of power batteries have become crucial. However, there may be defects in the production process, such as a large number of defects like metal particles, impurities, and damaged electrode plates, which not only affect the battery performance but also pose safety hazards. CT computer tomography technology is to perform three-dimensional reconstruction of the internal structure and defects of the power battery to generate complete three-dimensional data of the internal and external information of the battery. Technicians can discover potential defects by observing the fine internal structure and material differences of the battery.

[0005] Currently, when using industrial CT to detect new energy, generally only static detection of new energy batteries is carried out. However, with the rise of the fast charging mode of new energy vehicles, relevant detection equipment has gradually derived the need to detect the internal structure changes of new energy batteries during charging and discharging. Summary of the Utility Model

[0006] The purpose of the utility model is to provide an auxiliary device for detecting internal structure changes of a battery during charging and discharging to solve the problems existing in the above-mentioned prior art.

[0007] To achieve the above object, the present utility model provides the following solution: The present utility model provides an auxiliary device for detecting the internal structure change of a battery during charge and discharge, including an X-axis mounting plate fixedly connected to the top inner wall of an industrial CT shielding room. Symmetrically fixedly connected to the X-axis mounting plate are X-axis slide rails. On the outside of one of the X-axis slide rails is fixedly connected an X-axis cable slide rail. Slidably connected to the X-axis slide rails is a Y-axis mounting plate. Symmetrically fixedly connected to the Y-axis mounting plate are Y-axis slide rails. On the outside of one of the Y-axis slide rails is fixedly connected a Y-axis cable slide rail. Fixedly connected to the Y-axis slide rails is an R-axis bottom plate. Fixedly connected to the bottom of the R-axis bottom plate is a slip ring mounting member. Fixedly connected to the slip ring mounting member is an electric slip ring. The electric slip ring is electrically connected to an overcurrent cable.

[0008] Preferably, support columns are respectively fixedly connected to the four corners of the bottom surface of the R-axis bottom plate, and the slip ring mounting member is fixedly connected to the bottom surface of the support columns.

[0009] Preferably, a rotor support member is fixedly connected inside the slip ring mounting member, and the rotor support member is adapted to the rotor.

[0010] Preferably, a bearing outer ring card is fixedly connected inside the slip ring mounting member. A bearing is provided inside the bearing outer ring card, and a bearing inner ring card is provided inside the bearing. The bearing is located between the rotor support member and the slip ring mounting member.

[0011] Preferably, a cable fixing member is fixedly connected to the outside of the R-axis bottom plate.

[0012] Preferably, a plurality of sliders are slidably connected to the X-axis cable slide rail and the Y-axis cable slide rail respectively. A rotating lifting ring is installed on the slider, and the overcurrent cable is installed inside the rotating lifting ring.

[0013] Preferably, the distance between the X-axis cable slide rail and the adjacent X-axis slide rail is not less than 80 mm, and the X-axis cable slide rail is parallel to the X-axis slide rail.

[0014] Preferably, the distance between the Y-axis cable slide rail and the adjacent Y-axis slide rail is not less than 80 mm, and the Y-axis cable slide rail is parallel to the Y-axis slide rail.

[0015] The present utility model discloses the following technical effects: When the test sample does not need to be powered on, it can be disassembled. After power-off, only the quick-connect joint needs to be disconnected, and the connection bolt between the X-axis mounting plate and the top inner wall of the industrial CT shielding room can be removed, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings forming a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation to this application. In the drawings:

[0017] Figure 1 This is a schematic structural diagram of an auxiliary device for detecting internal structure changes during charge and discharge of the battery of the present utility model;

[0018] Figure 2 is Figure 1 the cross-sectional view of A in

[0019] In the figure: 1. X-axis mounting plate; 2. X-axis slide rail; 3. X-axis cable slide rail; 4. Y-axis mounting plate; 5. Y-axis slide rail; 6. Y-axis cable slide rail; 7. Anti-collision block; 8. Rotating lifting ring; 9. Overcurrent cable; 10. R-axis bottom plate; 11. Support column; 12. Electric slip ring; 13. Slip ring mounting part; 14. Rotor support part; 15. Bearing outer ring card; 16. Bearing; 17. Bearing inner ring card; 18. Cable fixing part. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0021] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Referring to Figure 1 - Figure 2 as shown, this embodiment provides an auxiliary device for detecting internal structure changes during charge and discharge of a battery, including an X-axis mounting plate 1 fixedly connected to the top of the inner wall of the industrial CT shielding room. Symmetrically fixed on the X-axis mounting plate 1 are X-axis slide rails 2. On the outside of one of the X-axis slide rails 2 is fixedly connected an X-axis cable slide rail 3. Slidably connected to the X-axis slide rails 2 is a Y-axis mounting plate 4. Symmetrically fixed on the Y-axis mounting plate 4 are Y-axis slide rails 5. On the outside of one of the Y-axis slide rails 5 is fixedly connected a Y-axis cable slide rail 6. Fixedly connected to the Y-axis slide rails 5 is an R-axis bottom plate 10. Fixedly connected to the bottom of the R-axis bottom plate 10 is a slip ring mounting part 13. Fixedly connected to the slip ring mounting part 13 is an electric slip ring 12. The electric slip ring 12 is electrically connected to an overcurrent cable 9.

[0023] During installation, it should be connected to the top of the inner wall of the industrial CT shielding room through the reserved mounting holes on the X-axis mounting plate 1, using bolt connection, and the overcurrent cable 9 is butt-connected to the stator outgoing line of the electric slip ring 12; the rotor outgoing line of the electric slip ring 12 is butt-connected to the overcurrent cable with a node fixed on the turntable. The electric slip ring 12 is selected as a stator flange slip ring. The moving range of the slip ring should be greater than the moving range of the industrial CT operating table.

[0024] During installation, the charging cables led out from the two poles of the battery to be detected are docked with the corresponding cables at both ends of the overcurrent cable 9 using quick connectors.

[0025] During detection, the sample stage of the industrial CT rotates to drive the overcurrent cable 9 to rotate, and the rotation of the overcurrent cable 9 drives the electric slip ring 12 to rotate.

[0026] When different areas of the battery need to be detected, since the pre-pressure of the slide rail is very small, when moving the sample stage to the corresponding position, the worker moves the electric slip ring 12 above the turntable in a dragging manner. Since there is a certain distance between the sample stage and the electric slip ring 12, the two rotating axes are allowed to be non-concentric under certain circumstances. The operation of the worker is relatively simple.

[0027] The overcurrent cable 9 has a large specification and can withstand a large current, so this auxiliary device can be applied to the detection requirements of different currents.

[0028] The test sample can be disassembled when it does not need to be powered on. After power-off, only the quick-connect joint needs to be disconnected, and the connecting bolts between the X-axis mounting plate 1 and the top inner wall of the industrial CT shielding room can be removed, which is more convenient.

[0029] In a further optimized solution, support columns 11 are fixedly connected to the four corners of the bottom surface of the R-axis bottom plate 10, and a slip ring mounting member 13 is fixedly connected to the bottom surface of the support column 11.

[0030] In a further optimized solution, a rotor support member 14 is fixedly connected inside the slip ring mounting member 13, and the rotor support member 14 is adapted to the rotor.

[0031] In a further optimized solution, a bearing outer ring card 15 is fixedly connected inside the slip ring mounting member 13. A bearing 16 is provided inside the bearing outer ring card 15, and a bearing inner ring card 17 is provided inside the bearing 16. The bearing 16 is located between the rotor support member 14 and the slip ring mounting member 13.

[0032] In a further optimized solution, a cable fixing member 18 is fixedly connected to the outside of the R-axis bottom plate 10. The cable fixing member 18 is arranged at a position far from the radiation source. The cable is arranged on the slide rail side far from the radiation source. The cable docking position is set on the cable fixing member 18, and one end of the electric slip ring 12 where the wire comes out is fixed on the cable fixing member 18.

[0033] The stator part of the electric slip ring 12 is bolted to the slip ring mounting member 13, and the slip ring rotor is soft-connected to the rotor support member 14; the inner ring of the bearing 16 is arranged between the rotor support member 14 and the bearing inner ring card 17, and the outer ring of the bearing 16 is arranged between the slip ring mounting member 13 and the bearing outer ring card 15, wherein the rotor support member 14 and the bearing inner ring card 17 are bolted together; the slip ring mounting member 13 and the bearing outer ring card 15 are bolted together, and the cable fixing member 18 is installed on the side of the R-axis bottom plate 10.

[0034] For a further optimized solution, a plurality of sliders are slidably connected to the X-axis cable slide rail 3 and the Y-axis cable slide rail 6 respectively. A rotating sling 8 is installed on the slider, and an overcurrent cable is installed inside the rotating sling 8. The lengths of the overcurrent cable 9 between the fixed nodes of the adjacent rotating slings 8 on the same cable slide rail are the same. Both ends of the overcurrent cable 9 use quick-connect joints, such as quick-connect terminals, etc., and it is ensured that the terminals cannot be easily pulled apart.

[0035] For a further optimized solution, the distance between the X-axis cable slide rail 3 and the adjacent X-axis slide rail 2 is not less than 80 mm, and the X-axis cable slide rail 3 is parallel to the X-axis slide rail 2. The distance between the two groups of X-axis slide rails 2 should be greater than or equal to the stroke of the corresponding X-axis of the industrial CT, and as much as possible, it is centrosymmetric with respect to the center of the X-axis mounting plate 1.

[0036] For a further optimized solution, the distance between the Y-axis cable slide rail 6 and the adjacent Y-axis slide rail 5 is not less than 80 mm, and the Y-axis cable slide rail 6 is parallel to the Y-axis slide rail 5. The distance between the two groups of Y-axis slide rails 5 should be greater than or equal to the stroke of the corresponding Y-axis of the industrial CT, and as much as possible, it is centrosymmetric with respect to the center of the Y-axis mounting plate 4.

[0037] Anti-collision blocks 7 are fixedly connected to both ends of the X-axis slide rail 2 and the Y-axis slide rail 5 respectively.

[0038] During use, the installed X-axis mounting plate 1 is arranged at the top of the inner wall of the CT shielding room, and it is required that the axial movement area of the electric slip ring 12 covers the axial movement area of the sample stage. The overcurrent cable 9 for charging is led out from the outside, and sequentially passes through the rotating slings 8 on the X-axis cable slide rail 3 and the Y-axis cable slide rail. At this time, the rotating slings 8 are evenly distributed on their respective slide rails, and are fixed with the rotating slings 8 as fixed nodes. Finally, the connection with the joint of the stator outgoing line of the slip ring is completed on the cable fixing member 18; when the position of the electric slip ring 12 changes, the covered length of the overcurrent cable 9 starts to be compressed, the rotating sling 8 starts to rotate, changing the extension direction of the overcurrent cable 9. When the compression amount is the largest, the cable becomes spring-shaped, avoiding the messy accumulation of the cable caused by the position change of the slip ring. The rotor outgoing line led out from the electric slip ring 12 is docked with the electrode of the new energy battery that needs to be charged on the sample stage. After confirming that there is no abnormality in the docking interface, the operation is simple. At this time, the corresponding test sample can be started, and the image reconstruction models formed at different time periods can be compared to confirm the internal structure change of the test battery during charge and discharge.

[0039] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0040] The above-described embodiments are only descriptions of the preferred embodiments of the present utility model, and do not limit the scope of the present utility model. Without departing from the design spirit of the present utility model, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present utility model shall fall within the protection scope determined by the claims of the present utility model.

Claims

1. An auxiliary device for detecting changes in the internal structure of a battery during charging and discharging, characterized in that: It includes an X-axis mounting plate (1) fixedly connected to the top of the inner wall of the industrial CT shielding room. Symmetrically fixed on the X-axis mounting plate (1) are X-axis slide rails (2). On the outside of one of the X-axis slide rails (2) is fixedly connected an X-axis cable slide rail (3). Slidably connected to the X-axis slide rails (2) is a Y-axis mounting plate (4). Symmetrically fixed on the Y-axis mounting plate (4) are Y-axis slide rails (5). On the outside of one of the Y-axis slide rails (5) is fixedly connected a Y-axis cable slide rail (6). Fixed to the Y-axis slide rails (5) is an R-axis bottom plate (10). Fixed to the bottom of the R-axis bottom plate (10) is a slip ring mounting member (13). Fixed to the slip ring mounting member (13) is an electric slip ring (12). The electric slip ring (12) is electrically connected to an overcurrent cable (9).

2. The auxiliary device for detecting the internal structure change during charge and discharge of the battery according to claim 1, characterized in that: Fixed to the four corners of the bottom surface of the R-axis bottom plate (10) are support columns (11) respectively. Fixed to the bottom surface of the support columns (11) is the slip ring mounting member (13).

3. The auxiliary device for detecting the internal structure change during charging and discharging of a battery according to claim 2, wherein: Fixed inside the slip ring mounting member (13) is a rotor support member (14), which is adapted to the rotor.

4. The auxiliary device for detecting the change of the internal structure of a battery during charge and discharge according to claim 3, characterized in that: Fixed inside the slip ring mounting member (13) is a bearing outer ring card (15). Inside the bearing outer ring card (15) is a bearing (16). Inside the bearing (16) is a bearing inner ring card (17). The bearing (16) is located between the rotor support member (14) and the slip ring mounting member (13).

5. The auxiliary device for detecting the internal structure change during charge and discharge of a battery according to claim 1, characterized in that: Fixed to the outside of the R-axis bottom plate (10) is a cable fixing member (18).

6. The auxiliary device for detecting the change of the internal structure of a battery during charge and discharge according to claim 1, characterized in that: Slidably connected to the X-axis cable slide rail (3) and the Y-axis cable slide rail (6) are a plurality of sliders respectively. Mounted on the sliders are rotating lifting rings (8). Installed inside the rotating lifting rings (8) is the overcurrent cable.

7. The auxiliary device for detecting the internal structure change of a battery during charge and discharge according to claim 1, characterized in that: The distance between the X-axis cable slide rail (3) and the adjacent X-axis slide rail (2) is not less than 80 mm, and the X-axis cable slide rail (3) is parallel to the X-axis slide rail (2).

8. The auxiliary device for detecting the internal structure change during charge and discharge of a battery according to claim 1, wherein: The distance between the Y-axis cable slide rail (6) and the adjacent Y-axis slide rail (5) is not less than 80 mm, and the Y-axis cable slide rail (6) is parallel to the Y-axis slide rail (5).

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