Device for detecting damage of laminated battery diaphragm

Abstract

The utility model discloses a device for detecting damage of a laminated battery diaphragm, which belongs to the technical field of lithium batteries and comprises a first mounting box and a second mounting box. The opening end of the first mounting box and the opening end of the second mounting box are attached to form a light-proof box only allowing the diaphragm to penetrate through, the detector is mounted in the first mounting box or the second mounting box, the receiver is mounted in the second mounting box or the first mounting box, and the output end of the detector is opposite to the receiving end of the receiver. According to the mode, the diaphragm penetrates through the gap between the first mounting box and the second mounting box to be mounted on the lamination machine, the movement of the lamination machine drives the diaphragm to be continuously released from the diaphragm roll, and the detector releases a detection signal to penetrate through the diaphragm between the first mounting box and the second mounting box; a detection signal of the detector penetrates through the diaphragm and is received by the receiver, then information is transmitted to the control system, the control system controls the lamination machine to stop working, and workers can conveniently take down the damaged diaphragm.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a device for detecting damage to a laminated battery diaphragm. Background Art

[0002] In the field of power lithium-ion battery stacking, since the incoming diaphragms are in a rolled state, the diaphragms cannot be fully inspected, and the diaphragms are often damaged during the production process, resulting in a short circuit in the entire finished stack, greatly increasing the probability of a short circuit. At the same time, some damaged diaphragms cannot be detected during the process, and the final finished battery has a great safety hazard. These greatly reduce the safety and service life of the battery, and also cause a great waste of production line costs. In view of this, overcoming the defects of the existing technology is a problem that needs to be solved urgently in this technical field. Utility Model Content

[0003] In order to solve the technical problems existing in the background technology, the utility model proposes a device for detecting damage of laminated battery diaphragm.

[0004] The utility model proposes a device for detecting damage to a laminated battery diaphragm, comprising a first installation box and a second installation box; the opening ends of the first installation box and the second installation box are fitted together to form a light-proof box that only allows the diaphragm to pass through, the detector is installed in the first installation box or the second installation box, the receiver is installed in the second installation box or the first installation box, and the output end of the detector is opposite to the receiving end of the receiver.

[0005] In the utility model, the device for detecting damage to the laminated battery diaphragm is proposed, the detector is a colored light source, and the receiver correspondingly includes a photosensitive sensor.

[0006] In the utility model, the device for detecting damage to the laminated battery diaphragm is proposed, and the length of the detector is not less than the width of the diaphragm.

[0007] In the utility model, the device for detecting damage to the laminated battery diaphragm is provided, and the action direction of the detector is perpendicular to the diaphragm.

[0008] In the utility model, a device for detecting damage to a laminated battery diaphragm is proposed, and at least two sets of rotating wheels are rotatably installed on the opening ends of the first installation box and the second installation box. The two sets of rotating wheels are respectively installed on the inlet end and the outlet end of the first installation box / the second installation box, and the rotating wheels are rotatably connected to the diaphragm.

[0009] In the utility model, the device for detecting damage to laminated battery diaphragms is provided, and the connecting line between the two groups of rotating wheels installed in the first installation box / the second installation box is perpendicular to the action direction of the detector.

[0010] In the utility model, in the device for detecting damage to laminated battery diaphragms, a first installation box and a second installation box are respectively rotatably installed on a group of installation frames.

[0011] In the utility model, the device for detecting damage to laminated battery diaphragms is provided, and a plurality of groups of rollers are installed at the bottom end of a mounting frame connected to the first mounting box and / or the second mounting box.

[0012] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0014] Figure 2 It is a right side view of the utility model;

[0015] Figure 3 For along Figure 2 Cross-sectional view in the AA direction.

[0016] Figure numerals: 1. first installation box; 2. second installation box; 3. light source; 4. receiver; 5. rotating wheel; 6. roller; 7. mounting frame; 8. diaphragm; 9. diaphragm roll. DETAILED DESCRIPTION

[0017] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0018] Example 1

[0019] like Figure 1-3 A device for detecting damage to a laminated battery diaphragm shown includes a first installation box 1 and a second installation box 2;

[0020] The open ends of the first mounting box 1 and the second mounting box 2 are fitted together to form a closed box with a gap in the middle, and the diaphragm 8 is installed on the stacking machine through the gap. The detector 3 is installed in the first mounting box 1, and the receiver 4 is installed in the second mounting box 2. The output end of the detector 3 is opposite to the receiving end of the receiver 4, and the diaphragm roll 9 is installed on the upper ends of the first mounting box 1 and the second mounting box 2. The stacking machine is repeatedly moved to facilitate the placement of positive and negative electrodes.

[0021] Preferably, the detector 3 comprises a colored light source, and the detector 3 is a light emitting device.

[0022] Preferably, the length of the detector 3 is not less than the width of the diaphragm 8 .

[0023] Preferably, the receiver 4 correspondingly includes a photosensor, the photosensor is electrically connected to the control system, and the control system is electrically connected to the laminating machine.

[0024] It is worth noting that when the detector 3 selects other modes, such as radar, the receiver 4 selects the receiving device corresponding to the detector 3.

[0025] The connecting line between the detector 3 and the receiver 4 passes vertically through the diaphragm 8 .

[0026] The diaphragm 8 on the diaphragm roll 9 is installed on the stacking machine through the first installation box 1 and the second installation box 2. The movement of the stacking machine drives the diaphragm 8 to be continuously released from the diaphragm roll 9. The colored light source releases colored light through the diaphragm 8 between the first installation box 1 and the second installation box 2. When the diaphragm 8 is damaged, the colored light passes through the diaphragm 8 and is received by the receiver 4. The receiver 4 receives the change in brightness and transmits the information to the control system. The control system controls the stacking machine to stop working, making it convenient for the staff to remove the damaged diaphragm 8.

[0027] Rotating wheels 5 are rotatably mounted on both upper and lower ends of the openings of the first installation box 1 and the second installation box 2 , and the rotating wheels 5 are rotatably connected to the diaphragm 8 .

[0028] Preferably, a line connecting the rotating wheels 5 at the upper and lower ends of the first installation box 1 or the second installation box 2 is perpendicular to the light direction of the light source 3 .

[0029] The first installation box 1 and the second installation box 2 are rotatably mounted on a set of mounting frames 7 respectively.

[0030] Preferably, a plurality of groups of rollers 6 are installed at the bottom end of the mounting frame 7 .

[0031] When detection is required, push the two sets of mounting frames 7 to drive the first mounting box 1 and the second mounting box 2 to the two ends of the diaphragm 8, adjust the directions of the first mounting box 1 and the second mounting box 2 so that the relative rotating wheels 5 on the first mounting box 1 and the second mounting box 2 clamp the diaphragm 8, and when the diaphragm 8 moves, the rotating wheel 5 rotates on the diaphragm 8, and the roller 6 facilitates the movement of the mounting frame 7, and the rotating wheel 5 makes the diaphragm 8 perpendicular to the light direction of the detector 3, so as to achieve a better reception effect.

[0032] This detection device detects the status of the loaded diaphragm in real time before the diaphragm is used to stack into semi-finished bare cores, thereby preventing the diaphragm from being scratched or damaged, and preventing the diaphragm with hidden dangers from flowing into the subsequent process, greatly reducing the risk and probability of short circuit, reducing costs to a certain extent, and increasing the safety, consistency and service life of the battery.

[0033] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for detecting damage to laminated battery diaphragm, characterized in that: It comprises a first installation box (1) and a second installation box (2); The opening ends of the first installation box (1) and the second installation box (2) are fitted together to form a light-proof box that only allows the diaphragm (8) to pass through. The detector (3) is installed in the first installation box (1) or the second installation box (2), and the receiver (4) is installed in the second installation box (2) or the first installation box (1). The output end of the detector (3) and the receiving end of the receiver (4) are opposite to each other.

2. The device for detecting damage to laminated battery diaphragm according to claim 1, characterized in that: The detector (3) is a colored light source, and the receiver (4) correspondingly comprises a photosensitive sensor.

3. The device for detecting damage to laminated battery diaphragm according to claim 1, characterized in that: The length of the detector (3) is not less than the width of the diaphragm (8).

4. The device for detecting damage to laminated battery diaphragm according to claim 1, characterized in that: The detector (3) acts in a direction perpendicular to the diaphragm (8).

5. The device for detecting damage to laminated battery diaphragm according to claim 1, characterized in that: At least two groups of rotating wheels (5) are rotatably mounted on the opening ends of the first installation box (1) and the second installation box (2). The two groups of rotating wheels (5) are respectively mounted on the inlet end and the outlet end of the first installation box (1) / the second installation box (2). The rotating wheels (5) are rotatably connected to the diaphragm (8).

6. The device for detecting damage to laminated battery diaphragm according to claim 5, characterized in that: The connecting line between the two groups of rotating wheels (5) installed in the first installation box (1) / the second installation box (2) is perpendicular to the action direction of the detector (3).

7. The device for detecting damage to laminated battery diaphragm according to claim 1, characterized in that: The first installation box (1) and the second installation box (2) are respectively rotatably mounted on a set of installation frames (7).

8. The device for detecting damage to laminated battery diaphragm according to claim 7, characterized in that: A plurality of groups of rollers (6) are installed at the bottom end of a mounting frame (7) connected to the first mounting box (1) and / or the second mounting box (2).

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