A battery piece clamp clamping force detection management device

Abstract

The application provides a battery piece clamp force detection management device, and belongs to the technical field of clamp force detection. The device comprises a clamp instrument, a guide rail arranged below the clamp instrument, an electric slider slidingly connected to the guide rail, a thin film pressure sensor arranged on the electric slider, a resistance thin film piece arranged on the thin film pressure sensor, a mounting block fixedly sleeved with the lower end of the periphery of the resistance thin film piece, an installation groove is formed in the upper end of the thin film pressure sensor, and the mounting block is inserted into the installation groove, and an electricity connection assembly arranged below the mounting block. The application is beneficial to accurately judging whether the clamping force of the clamp instrument is in a normal state, effectively reducing the troubles of manual experience and manual offline detection, not only beneficial to ensuring the adjustment accuracy of the clamping force of the clamp instrument, but also labor-saving and convenient in the adjustment process, avoiding the risks of serious damage of a pyramid to a battery piece in a production process, such as hidden cracks, fragments and other adverse conditions.

Description

Technical Field

[0001] This application belongs to the field of clamping force detection technology, specifically relating to a battery cell clamping force detection and management device. Background Technology

[0002] The thin and brittle characteristic test of silicon solar cells refers to the process of measuring and evaluating the ability of silicon solar cells to resist external forces such as bending, vibration, impact, and pressure using a series of mechanical, optical, or acoustic testing methods. Its core purpose is to determine whether the cells are at risk of defects such as microcracks or breakage due to their extremely thin thickness and the inherent brittleness of the material.

[0003] In existing technologies, especially in the metallization production process of silicon solar cells, the clamping force control of the fixture is particularly important due to the thin and brittle nature of the cells. If the operation and debugging are not handled carefully, it can cause pyramid damage, microcracks, fragmentation and other defects to the cells during the production process. However, relying on manual experience for offline inspection through conventional means is time-consuming, labor-intensive and cannot be digitized or made online in terms of accuracy and frequency.

[0004] To address the above issues, this application designs a battery cell clamping force detection and management device to solve the technical problems of difficulty in controlling the accuracy of clamping force adjustment, which is time-consuming and labor-intensive. Utility Model Content

[0005] This application aims to address at least one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, this application designs a battery cell clamping force detection and management device to ensure the accuracy of clamping force adjustment, and the adjustment process is labor-saving and convenient.

[0007] This application provides a battery cell clamping force detection and management device, comprising: a clamping instrument; a guide rail disposed below the clamping instrument; an electric slider slidably connected to the guide rail; a thin-film pressure sensor disposed on the electric slider; a resistive thin film disposed on the thin-film pressure sensor; a mounting block fixedly sleeved on the lower end of the periphery of the resistive thin film, wherein the upper end of the thin-film pressure sensor has a mounting groove, and the mounting block is inserted into the mounting groove; a power connection component disposed below the mounting block, used to conveniently connect the resistive thin film and the thin-film pressure sensor to power and to facilitate the replacement of resistive thin films of various thicknesses; an anti-detachment limiting component disposed on one side of the mounting block, used to prevent the resistive thin film from accidentally falling off after installation; and insertion limiting components disposed on both sides of the thin-film pressure sensor, used to conveniently install and remove the thin-film pressure sensor.

[0008] In some possible embodiments, the power connection assembly includes: an upper power connection terminal fixed to the lower end of the resistive thin film, and a mounting block fixed to the upper power connection terminal; a lower power connection terminal attached to the lower part of the upper power connection terminal; and a wire connected to the lower power connection terminal and the power connection terminal of the thin film pressure sensor.

[0009] In some possible embodiments, the power connection assembly further includes: two sliders respectively fixed to both sides of the lower power connection terminal, and both sliders are slidably connected to the inner sidewall of the mounting groove; and two insulating springs connected to each other between the lower part of the lower power connection terminal and the bottom of the mounting groove.

[0010] In some possible embodiments, the anti-detachment limiting component includes: a locking block, disposed on one side of the mounting block, wherein a slot is opened on one side of the mounting block, the locking block is engaged in the slot, and the upper end of the locking block is inclined; and a pulling block, disposed on the outside of the locking block, wherein a sliding groove communicating with the inner sidewall of the mounting groove is opened at the upper end of the thin film pressure sensor, and the pulling block is slidably connected in the sliding groove.

[0011] In some possible embodiments, the anti-detachment limiting component further includes: a return spring, one end of which is fixed to the inner wall of the slide groove and the other end of which is fixed to the outer side of the pull block; and a fixing rod, which is fixed between the pull block and the locking block.

[0012] In some possible embodiments, the mounting block is made of insulating plastic material.

[0013] In some possible embodiments, the insertion limiting assembly includes: a spring telescopic rod, with a slot at the upper end of the electric slider, and contraction grooves on both sides of the inner wall of the slot, the spring telescopic rod being fixed in the contraction grooves, and the lower end of the thin-film pressure sensor being inserted into the slot; and a limiting block, fixed to the free end of the spring telescopic rod, with limiting grooves on the lower parts of both sides of the thin-film pressure sensor, the limiting block engaging with the limiting grooves, and the limiting block being semi-circular.

[0014] Compared with the prior art, the technical solution provided in this application has at least the following beneficial effects:

[0015] This application provides a battery cell clamping force detection and management device. An electric slider moves a thin-film pressure sensor and a resistive thin film to the clamping point of the clamping instrument. The clamping instrument then clamps a resistive thin film of the same thickness as the battery cell. When the clamping force is within the normal range, the pressure value displayed by the thin-film pressure sensor is also within the normal range. If the clamping force is too large, the pressure value displayed by the thin-film pressure sensor is outside the normal range. Therefore, it is beneficial to accurately determine whether the clamping force of the clamping instrument is within the normal range, effectively reducing the trouble of relying on manual experience and offline manual inspection. This not only helps to ensure the adjustment of the clamping force of the clamping instrument... The device improves accuracy and streamlines the debugging process, preventing damage such as pyramidal cracks or fragmentation of the battery cells during production due to improper debugging. This allows the device to support online spot checks and full inspection during maintenance of the fixtures. Furthermore, the detachable resistive film allows for easy and quick replacement of the appropriate thickness. This enables the device to adjust and test the clamping force on battery cells of various thicknesses by changing the resistive film of different thicknesses, eliminating the need to replace other specifications of thin-film pressure sensors. Simply replacing the corresponding thickness resistive film effectively reduces debugging costs, making the debugging process more economical.

[0016] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a schematic diagram of the overall structure of a battery cell clamping force detection and management device according to some embodiments of this application;

[0019] Figure 2 This is a schematic diagram of the overall planar structure of a battery cell clamping force detection and management device according to some embodiments of this application;

[0020] Figure 3 This is a schematic diagram of the internal structure of a thin-film pressure sensor in a battery cell clamping force detection and management device according to some embodiments of this application;

[0021] Figure 4 This is a partially enlarged structural diagram of a battery cell clamping force detection and management device according to some embodiments of this application;

[0022] Figure 5 This is a partially enlarged structural diagram of a battery cell clamping force detection and management device according to some embodiments of this application.

[0023] Figure label:

[0024] 1. Fixture instrument; 2. Guide rail; 3. Electric slider; 4. Thin-film pressure sensor; 5. Resistive thin-film sheet; 6. Mounting block; 7. Upper electrical terminal 601; 8. Lower electrical terminal 602; 9. Wire 603; 10. Slider 604; 11. Insulating spring 605; 12. Mounting groove; 3. Locking block; 4. Locking groove 801; 5. Slide groove 802; 6. Pull block 803; 7. Return spring 804; 8. Fixing rod 805; 9. Slot; 10. Spring telescopic rod 901; 11. Contraction groove 902; 12. Limiting block 903; 13. Limiting groove 904. Detailed Implementation

[0025] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0027] The following reference Figures 1 to 5 This application describes a battery cell clamping force detection and management device according to some embodiments.

[0028] Please see Figures 1 to 5 The battery cell clamping force detection and management device provided in some embodiments of this application includes, in some embodiments: a clamping instrument 1; a guide rail 2 disposed below the clamping instrument 1; an electric slider 3 slidably connected to the guide rail 2; a thin film pressure sensor 4 disposed on the electric slider 3; and a resistive thin film 5 disposed on the thin film pressure sensor 4.

[0029] In this embodiment, when the clamping force of the clamping instrument 1 is detected, the electric slider 3 slides along the guide rail 2. Therefore, the electric slider 3 drives the thin-film pressure sensor 4 and the resistive thin-film sheet 5 to the clamping position of the clamping instrument 1. Then, the resistive thin-film sheet 5 is clamped at the clamping position of the clamping instrument 1. At this time, the thickness of the resistive thin-film sheet 5 matches the thickness of the battery cell. When the clamping force is within the normal range, the pressure value displayed by the thin-film pressure sensor 4 is within the normal range. If the clamping force is too large, the resistive thin-film sheet 5 undergoes a slight deformation, and the sensitive layer is compressed. Since the circuit of the thin-film pressure sensor 4 (usually a simple voltage divider circuit or bridge circuit) detects this change in resistance and converts and amplifies it into a voltage change signal, it is measured... The magnitude of this voltage signal can accurately deduce the magnitude of the applied pressure. After the membrane pressure sensor 4 detects the change in pressure value, it displays that the pressure value is no longer within the normal range. Therefore, it is helpful to accurately determine whether the clamping force of the fixture instrument 1 is in a normal state, effectively reducing the trouble of relying on manual experience and offline manual inspection. This not only helps to ensure the accuracy of the clamping force adjustment of the fixture instrument 1, but also saves effort and is convenient during the adjustment process. It avoids the occurrence of pyramid damage, microcracks, fragments, and other defects in the battery cells during the production process due to improper adjustment. Therefore, this device supports online spot checks of the fixture and full inspection during maintenance. It should be noted that the clamping detection range is not limited to the detection of this vertical fixture, and is also applicable to the pressure detection of other contact type fixtures.

[0030] In some embodiments, the mounting block 6 is fixedly sleeved around the lower end of the resistive diaphragm 5, and the upper end of the thin-film pressure sensor 4 has a mounting groove 7, into which the mounting block 6 is inserted; the power connection assembly is located below the mounting block 6, for conveniently connecting the resistive diaphragm 5 and the thin-film pressure sensor 4 and achieving the effect of conveniently replacing resistive diaphragms 5 of various thicknesses; the power connection assembly includes: an upper power connection terminal 601, fixed to the lower end of the resistive diaphragm 5, and the mounting block 6 is fixed to the upper power connection terminal 601; a lower power connection terminal 602, attached to the lower part of the upper power connection terminal 601; and a wire 603, connected to the lower power connection terminal 602 and the power connection terminal of the thin-film pressure sensor 4; the power connection assembly also includes: two sliders 604, which are respectively fixed to both sides of the lower power connection terminal 602, and both sliders 604 are slidably connected to the mounting block 6. The mounting groove 7 has an inner wall; two insulating springs 605 are provided, each connected between the lower part of the lower electrical terminal 602 and the bottom of the mounting groove 7; an anti-detachment limiting component is provided on one side of the mounting block 6 to prevent the resistive film 5 from accidentally falling off after installation; the anti-detachment limiting component includes: a locking block 8, provided on one side of the mounting block 6, with a locking groove 801 on one side of the mounting block 6, the locking block 8 locking into the locking groove 801, and the upper end of the locking block 8 being inclined; a pulling block 803, provided on the outside of the locking block 8, with a sliding groove 802 communicating with the inner wall of the mounting groove 7 at the upper end of the film pressure sensor 4, the pulling block 803 being slidably connected in the sliding groove 802; the anti-detachment limiting component also includes: a return spring 804, one end fixed to the inner wall of the sliding groove 802, and the other end fixed to the outside of the pulling block 803; a fixing rod 805, fixed between the pulling block 803 and the locking block 8.

[0031] In this embodiment, by providing a detachable resistive film 5, when the resistive film 5 is normally installed, the upper electrical terminal 601 presses on the lower electrical terminal 602. Therefore, the resistive film 5, the upper electrical terminal 601, the lower electrical terminal 602, the wire 603, and the film pressure sensor 4 are connected in series to ensure normal detection. Moreover, by pulling the fixing rod 805 and the locking block 8 by the pull block 803, the pull block 803 will compress the return spring 804, thereby causing the locking block 8 to move out of the locking slot 801. This allows the mounting block 6 to be easily moved out of the mounting slot 7, and the upper electrical terminal 601 and the lower electrical terminal 602 to be separated, which facilitates the easy removal of the resistive film 5 for subsequent replacement with resistive film 5 of other thicknesses.

[0032] In some embodiments, the anti-detachment limiting component includes: a locking block 8, disposed on one side of the mounting block 6, wherein a slot 801 is formed on one side of the mounting block 6, the locking block 8 is engaged in the slot 801, and the upper end of the locking block 8 is inclined; a pulling block 803, disposed on the outside of the locking block 8, wherein a sliding groove 802 communicating with the inner sidewall of the mounting groove 7 is formed on the upper end of the thin film pressure sensor 4, and the pulling block 803 is slidably connected in the sliding groove 802; the anti-detachment limiting component further includes: a return spring 804, one end of which is fixed to the inner sidewall of the sliding groove 802, and the other end of which is fixed to the outside of the pulling block 803; a fixing rod 805, fixed between the pulling block 803 and the locking block 8; the mounting block 6 is made of insulating plastic material.

[0033] In this embodiment, when installing the resistive film 5, the mounting block 6 is directly inserted into the mounting groove 7. Since the mounting block 6 is made of insulating plastic, it helps to ensure safety during operation. During this process, the mounting block 6 pushes the locking block 8, fixing rod 805, and pull block 803 into the sliding groove 802 along the inclined surface of the locking block 8. The pull block 803 compresses the return spring 804. At the same time, the upper electrical terminal 601 presses down on the lower electrical terminal 602, and the lower electrical terminal 602 compresses the insulating spring 605. When the locking block 8 is aligned with the groove of the locking groove 801, the rebound force of the return spring 804 will drive the locking block 8 into the locking groove 801, thereby preventing the mounting block from being locked in place. 6 is removed from the mounting slot 7, and simultaneously, the rebound force of the insulating spring 605 causes the lower electrical terminal 602 to be tightly attached to the lower end of the upper electrical terminal 601, thereby forming a circuit between the resistive film 5, the upper electrical terminal 601, the lower electrical terminal 602, the wire 603, and the film pressure sensor 4. In summary, this facilitates the convenient and quick replacement of the resistive film 5 of the corresponding thickness. Therefore, it is beneficial to adjust and test the clamping force on battery cells of various thicknesses by replacing the resistive film 5 of various thicknesses. There is no need to replace the film pressure sensor 4 of other specifications; only the resistive film 5 of the corresponding thickness needs to be replaced, which effectively reduces the cost of the debugging process and makes the debugging process more economical.

[0034] In some embodiments, insertion limiting components are disposed on both sides of the thin-film pressure sensor 4 for convenient installation and removal of the thin-film pressure sensor 4; each insertion limiting component includes: a spring telescopic rod 901, the upper end of the electric slider 3 having a slot 9, both sides of the inner wall of the slot 9 having a contraction groove 902, the spring telescopic rod 901 being fixed in the contraction groove 902, and the lower end of the thin-film pressure sensor 4 being inserted into the slot 9; and a limiting block 903, fixed to the free end of the spring telescopic rod 901, the lower part of both sides of the thin-film pressure sensor 4 having a limiting groove 904, the limiting block 903 engaging with the limiting groove 904, and the limiting block 903 being semi-circular.

[0035] In this embodiment, by setting a plug-in limiting component, with the lower end of the thin-film pressure sensor 4 inserted into the slot 9 and the limiting block 903 engaged in the limiting groove 904, pulling the thin-film pressure sensor 4 upwards will cause the thin-film pressure sensor 4 to push the limiting block 903 into the contraction groove 902 along the arc surface of the limiting block 903. The limiting block 903 will compress the spring telescopic rod 901, thereby causing the limiting block 903 to move out of the limiting groove 904. Therefore, the thin-film pressure sensor 4 can be easily removed from the electric slider 3. During the disassembly and insertion of the lower end of the diaphragm pressure sensor 4 into the slot 9, the diaphragm pressure sensor 4 will simultaneously push the limiting block 903 into the shrinkage groove 902 along the arc surface of the limiting block 903. The limiting block 903 will compress the spring telescopic rod 901, thereby aligning the limiting block 903 with the opening of the limiting groove 904. Then, the elastic force of the spring telescopic rod 901 will cause the limiting block 903 to automatically engage in the limiting groove 904, thus facilitating the convenient installation of the diaphragm pressure sensor 4 on the electric slider 3 for use, making operation convenient.

[0036] In this application, it should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this application, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. The term "multiple" refers to two or more, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0039] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] In this application, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A device for detecting and managing the clamping force of a battery cell clamp, characterized in that, include: Fixtures and instruments (1); Guide rail (2) is located below the clamping instrument (1); An electric slider (3) is slidably connected to a guide rail (2); A thin-film pressure sensor (4) is mounted on an electric slider (3); A resistive thin film (5) is disposed on the thin film pressure sensor (4); The mounting block (6) is fixedly sleeved on the lower end of the periphery of the resistive thin film (5). The upper end of the thin film pressure sensor (4) has a mounting groove (7), and the mounting block (6) is inserted into the mounting groove (7). The power connection component is located below the mounting block (6) and is used to conveniently connect the resistive film (5) to the thin film pressure sensor (4) and to facilitate the replacement of resistive films (5) of various thicknesses. An anti-detachment limiting component is provided on one side of the mounting block (6) to prevent the resistor film (5) from accidentally falling off after installation; Insertion limiting components are provided on both sides of the thin film pressure sensor (4) for easy installation and removal of the thin film pressure sensor (4).

2. The battery cell clamping force detection and management device according to claim 1, characterized in that, The power connection assembly includes: The upper electrical terminal (601) is fixed to the lower end of the resistive film (5), and the mounting block (6) is fixed to the upper electrical terminal (601); The lower electrical terminal (602) is attached to the lower part of the upper electrical terminal (601); The wire (603) is connected to the lower electrical terminal (602) and the electrical terminal of the thin-film pressure sensor (4).

3. The battery cell clamping force detection and management device according to claim 2, characterized in that, The power connection assembly also includes: Two sliders (604) are provided and fixed on both sides of the lower electrical terminal (602), and both sliders (604) are slidably connected to the inner wall of the mounting groove (7); Two insulating springs (605) are provided, each connected between the lower part of the lower electrical terminal (602) and the bottom of the mounting groove (7).

4. The battery cell clamping force detection and management device according to claim 1, characterized in that, The anti-detachment limiting component includes: A locking block (8) is provided on one side of the mounting block (6). A slot (801) is opened on one side of the mounting block (6). The locking block (8) is engaged in the slot (801), and the upper end of the locking block (8) is inclined. Pull block (803) is located outside the card block (8). The upper end of the thin film pressure sensor (4) has a sliding groove (802) that communicates with the inner side wall of the mounting groove (7). The pull block (803) is slidably connected in the sliding groove (802).

5. The battery cell clamping force detection and management device according to claim 4, characterized in that, The anti-detachment limiting component also includes: The return spring (804) is fixed at one end to the inner wall of the slide (802) and at the other end to the outer side of the pull block (803); The fixing rod (805) is fixed between the pull block (803) and the locking block (8).

6. The battery cell clamping force detection and management device according to claim 1, characterized in that, The mounting block (6) is made of insulating plastic material.

7. The battery cell clamping force detection and management device according to claim 1, characterized in that, All of the aforementioned insertion limiting components include; The spring telescopic rod (901) has a slot (9) at the upper end of the electric slider (3), and a contraction groove (902) is opened on both sides of the inner wall of the slot (9). The spring telescopic rod (901) is fixed in the contraction groove (902), and the lower end of the thin film pressure sensor (4) is inserted into the slot (9). The limiting block (903) is fixed to the free end of the spring telescopic rod (901). The lower part of both sides of the thin film pressure sensor (4) is provided with limiting grooves (904). The limiting block (903) is engaged with the limiting groove (904), and the limiting block (903) is semi-circular.

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