A small wafer automatic cleaning device of a battery wafer testing machine

Abstract

This utility model provides an automatic cleaning device for small labels in a battery cell testing machine, relating to the technical field of battery cell cleaning devices. It includes an air knife with an inclined front end. An air inlet pipe is fixedly installed inside the air knife, with one end of the air inlet pipe located at the rear end of the air knife. An air outlet groove is formed on the front surface of the air knife, communicating with the air inlet pipe. In this utility model, a locking screw is threaded into the locking hole at the outer end of the lifting block. After loosening the locking screw, the lifting block can slide up and down along the column, with the column fitting against the through hole to ensure stable sliding. After adjusting to a suitable angle, tightening the locking screw fixes the lifting block, thus fixing the height of the air knife. This solves the problems of fixed air knife angles and heights, which cannot adapt to small labels of different sizes, resulting in incomplete cleaning coverage, and the inability of the airflow to accurately target the area to be cleaned when there are slight deviations in the label placement.

Description

Technical Field

[0001] This utility model relates to the technical field of battery cell cleaning devices, and in particular to an automatic cleaning device for small sample cells in a battery cell testing machine. Background Technology

[0002] During the testing process of the IV tester for solar cells, the IV tester usually uses a feedback control system to automatically adjust the light source intensity according to the short-circuit current of the small test piece to ensure the stability of the test. At the same time, it is necessary to eliminate the influence of the environment on the small test piece, because dust or debris will be generated during the test. Once the small test piece is contaminated, it will cause abnormal light source intensity calibration, which will affect the test results.

[0003] Currently, the industry mainly uses two methods to clean battery labels: manual wiping or fixed air blowing devices. However, these methods still have some shortcomings:

[0004] First, manual wiping is not only inefficient and difficult to adapt to the continuous operation requirements of automated production lines, but also prone to scratches or secondary contamination of the sample surface due to uneven force and contamination of the wiping cloth.

[0005] Secondly, although traditional fixed air blowing devices have achieved a certain degree of automation, the angle and height of the air knife are fixed and cannot be adapted to small labels of different sizes, resulting in incomplete cleaning coverage and difficulty in removing impurities in some areas. At the same time, the fixed structure lacks flexibility. When there is a slight deviation in the placement of the label, the airflow cannot be accurately applied to the area to be cleaned, resulting in unstable cleaning effect. Utility Model Content

[0006] This utility model relates to an automatic cleaning device for small labels in a battery cell testing machine. It solves the problems of fixed air blowing devices, which achieve a certain degree of automation, but the angle and height of the air blades are fixed and cannot be adapted to small labels of different specifications, resulting in incomplete cleaning coverage, difficulty in removing impurities in some areas, and unstable cleaning effect when there is a slight deviation in the placement of the label, which prevents the airflow from accurately acting on the area to be cleaned.

[0007] This utility model provides an automatic cleaning device for small labels of a battery cell testing machine, specifically including: a base;

[0008] Two connecting plates are installed at the left and right ends of the base, and the surface of the connecting plates is provided with through-holes. Two columns are welded to the upper end of the base.

[0009] The air knife has an inclined front end face and an air inlet pipe is fixedly installed inside it. One end of the air inlet pipe is located on the rear end side of the air knife. An air outlet groove is opened on the front end surface of the air knife, and the air outlet groove is connected to the air inlet pipe.

[0010] The connecting shaft is provided in two symmetrical sets. The connecting shaft is welded to the left and right ends of the air knife. The outer end face of the connecting shaft is welded with a locking block. The outer circumferential surface of the locking block is provided with an annular track groove.

[0011] The lifting block has a through hole in the middle of its surface, and the column is engaged inside the through hole. The inner end face of the lifting block has a scale line with an annular structure.

[0012] Furthermore, a locking hole is provided on the outer end surface of the lifting block, the locking hole is connected to the through hole, and a locking screw is threaded inside the locking hole.

[0013] Furthermore, the inner end face of the lifting block is provided with a connecting groove, and the upper end face of the connecting groove is provided with a connecting hole, which communicates with the connecting groove.

[0014] Furthermore, the track groove is provided with a fastening block inside, and a fastening screw is welded to the outer end face of the fastening block. The fastening screw is snapped into the connection hole, and a nut is connected to the surface of the fastening screw.

[0015] Furthermore, the upper surface of the base is provided with marking lines, which are arranged in a crisscrossing structure.

[0016] Furthermore, the outer end face of the column is uniformly provided with vertical grooves, and the outer end face of the column fits into the inner end face of the through hole.

[0017] Furthermore, an indicator block is fixedly installed on the outer end face of the coupling, and the locking block on the outer end face of the coupling is rotatably connected in the connecting groove on the surface of the lifting block.

[0018] This utility model provides an automatic cleaning device for small labels in a battery cell testing machine, which has the following beneficial effects:

[0019] 1. The base surface has crisscrossing marking lines, which can quickly locate the placement of the small labels and ensure that they are within the effective cleaning range of the air knife. The air inlet pipe inside the air knife is connected to an external fan. After the fan is started, compressed air enters the air knife through the air inlet pipe and is finally ejected at high speed from the air outlet at the front end of the air knife, forming a directional airflow. The high-speed airflow ejected from the air outlet directly acts on the small labels on the base surface, using the gas impact force to blow away the dust, impurities and other debris attached to the surface of the small labels, thus completing the automatic cleaning.

[0020] 2. The locking hole at the outer end of the lifting block is connected to a locking screw. After loosening the locking screw, the lifting block can slide up and down along the column. The column fits into the through hole to ensure stable sliding. After adjusting to a suitable angle, tighten the locking screw to fix the lifting block, thereby fixing the height of the air knife.

[0021] 3. A connecting shaft is welded to each end of the air knife. The locking block at the outer end of the connecting shaft is rotatably connected to the connecting groove of the lifting block. Loosening the nut on the fastening screw allows the connecting shaft to rotate, driving the air knife to rotate. An indicator block is installed on the outer circumference of the connecting shaft. The indicator block cooperates with the scale line on the surface of the lifting block to accurately adjust the tilt angle of the air knife. After the angle is determined, tighten the nut on the fastening screw to lock the fastening block in the track groove, thereby fixing the connecting shaft and the locking block, and thus determining the tilt angle of the air knife. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0023] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0024] In the attached diagram:

[0025] Figure 1 A schematic diagram of the overall device structure of this utility model is shown;

[0026] Figure 2 A schematic diagram of the connection structure between the base and the column of this utility model is shown;

[0027] Figure 3 An exploded view of the air knife, connecting shaft and lifting block of this utility model is shown.

[0028] Figure 4 A cross-sectional view of the lifting block of this utility model is shown;

[0029] Figure 5 An exploded structural diagram of the coupling, locking block and fastening block of this utility model is shown;

[0030] Figure 6 A cross-sectional view of the air knife of this utility model is shown.

[0031] List of reference numerals in the attached diagram:

[0032] 1. Base; 101. Connecting plate; 102. Marking line; 2. Column; 201. Groove; 3. Air knife; 301. Air inlet pipe; 302. Air outlet slot; 4. Connecting shaft; 401. Indicator block; 5. Locking block; 501. Track groove; 6. Fastening block; 601. Fastening screw; 7. Lifting block; 701. Through hole; 702. Locking hole; 703. Connecting groove; 7031. Connecting hole; 704. Scale line. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0034] Example 1: Please refer to Figures 1 to 6 :

[0035] This utility model proposes an automatic cleaning device for small sample cells in a battery cell testing machine, comprising: a base 1;

[0036] Two connecting plates 101 are installed at the left and right ends of the base 1, respectively. The surface of the connecting plates 101 is provided with through-holes. Two columns 2 are welded to the upper end of the base 1.

[0037] The air knife 3 has an inclined front end. An air inlet pipe 301 is fixedly installed inside the air knife 3. One end of the air inlet of the air inlet pipe 301 is located on the rear end side of the air knife 3. An air outlet groove 302 is opened on the front end surface of the air knife 3, and the air outlet groove 302 is connected to the air inlet pipe 301.

[0038] The connecting shaft 4 is provided in two symmetrical sets. The connecting shaft 4 is welded to the left and right ends of the air knife 3. The outer end face of the connecting shaft 4 is welded with a locking block 5. The outer circumferential surface of the locking block 5 is provided with a circular track groove 501.

[0039] The lifting block 7 has a through hole 701 in the middle of its surface. The column 2 is engaged inside the through hole 701. The inner end face of the lifting block 7 has a scale line 704 with an annular structure.

[0040] The outer end surface of the lifting block 7 is provided with a locking hole 702, which is connected to the through hole 701. The locking hole 702 is internally threaded with a locking screw. The inner end surface of the lifting block 7 is provided with a connecting groove 703, and the upper end surface of the connecting groove 703 is provided with a connecting hole 7031, which is connected to the connecting groove 703. After loosening the nut on the surface of the fastening screw 601, the tilt angle of the air knife 3 can be adjusted as needed.

[0041] The upper surface of the base 1 is provided with marking lines 102, which are arranged in a crisscross structure to accurately determine the position of the battery marking piece during use.

[0042] The column 2 has vertical grooves 201 evenly distributed on its outer end face. The outer end face of the column 2 fits into the inner end face of the through hole 701. After the locking bolt inside the locking hole 702 is tightened, the front end of the locking bolt fits tightly into the column 2. The grooves 201 on the outer end face of the column 2 can improve the friction between the locking bolt and the column 2, thereby improving the stability of the lifting block 7 outside the column 2.

[0043] The outer end face of the connecting shaft 4 is fixedly equipped with an indicator block 401. The locking block 5 on the outer end face of the connecting shaft 4 is rotatably connected to the connecting groove 703 on the surface of the lifting block 7. The track groove 501 is provided with a fastening block 6. The outer end face of the fastening block 6 is welded with a fastening screw 601. The fastening screw 601 is engaged in the connecting hole 7031. A nut is connected to the surface of the fastening screw 601. In use, the indicator block 401 is installed on the outer circumference of the connecting shaft 4. The indicator block 401 cooperates with the scale line 704 on the surface of the lifting block 7 to accurately adjust the tilt angle of the air knife 3. After the angle is determined, the nut on the fastening screw 601 is tightened so that the fastening block 6 is locked in the track groove 501, thereby fixing the connecting shaft 4 and the locking block 5, and thus determining the tilt angle of the air knife 3.

[0044] Example 2, based on Example 1, such as Figures 1-6 As shown, an air inlet pipe 301 is fixedly installed inside the air knife 3. The air inlet pipe 301 can be connected to an external fan. After the fan is started, compressed air can be delivered to the air inlet pipe 301 and sprayed out from the air outlet 302. The sprayed gas is sprayed onto the small label on the surface of the base 1, thereby cleaning and sweeping the dust and other impurities on the surface of the battery label during the test.

[0045] The working principle of this embodiment:

[0046] In this invention, the surface of the battery label needs to be kept clean during battery cell testing. The base 1 has crisscrossing marking lines 102 on its surface, allowing for quick positioning of the label and ensuring it is within the effective cleaning range of the air knife 3. An external fan is connected to the air inlet pipe 301 inside the air knife 3. When the fan starts, compressed air enters the air knife 3 through the air inlet pipe 301 and is finally ejected at high speed from the air outlet 302 at the front end of the air knife 3, forming a directional airflow. The high-speed airflow ejected from the air outlet 302 directly acts on the label on the surface of the base 1, using the gas impact force to blow away dust and impurities adhering to the label surface, completing automatic cleaning and preventing impurities from affecting subsequent testing accuracy. During testing, the fan runs once per minute, and the air blown out by the air knife 3 blows air to remove dust from the battery cells. The locking hole 702 at the outer end of the lifting block 7 has an internal thread. The lifting block 7 is connected to a locking screw. After the locking screw is loosened, the lifting block 7 can slide up and down along the column 2. The column 2 fits into the through hole 701 to ensure stable sliding. After adjusting to a suitable angle, the locking screw is tightened to fix the lifting block 7, thereby fixing the height of the air knife 3. A connecting shaft 4 is welded to each end of the air knife 3. The locking block 5 at the outer end of the connecting shaft 4 is rotatably connected to the connecting groove 703 of the lifting block 7. Loosening the nut on the fastening screw 601 allows the connecting shaft 4 to rotate, driving the air knife 3 to rotate. An indicator block 401 is installed on the outer circumference of the connecting shaft 4. The indicator block 401 cooperates with the scale line 704 on the surface of the lifting block 7 to accurately adjust the tilt angle of the air knife 3. After the angle is determined, the nut on the fastening screw 601 is tightened to lock the fastening block 6 into the track groove 501, thereby fixing the connecting shaft 4 and the locking block 5, thus determining the tilt angle of the air knife 3.

Claims

1. An automatic cleaning device for small labels of a battery cell testing machine, comprising: a base (1), wherein two connecting plates (101) are respectively installed at the left and right ends of the base (1), the surface of the connecting plates (101) is provided with through-holes, and two columns (2) are welded to the upper end face of the base (1); characterized in that: Air knife (3), the front end face of the air knife (3) is inclined, the air inlet pipe (301) is fixedly installed inside the air knife (3), one end of the air inlet of the air inlet pipe (301) is located on the rear end side of the air knife (3), the front end surface of the air knife (3) is provided with an air outlet groove (302), the air outlet groove (302) is connected to the air inlet pipe (301); connecting shaft (4), two sets of connecting shaft (4) are symmetrically provided, the connecting shaft (4) is welded to the left and right ends of the air knife (3), the outer end face of the connecting shaft (4) is welded with a locking block (5), the outer circumferential surface of the locking block (5) is provided with a circular track groove (501); lifting block (7), the middle position of the surface of the lifting block (7) is provided with a through hole (701), the column (2) is locked inside the through hole (701), the inner end face of the lifting block (7) is provided with a ring structure scale line (704).

2. The small wafer automatic cleaning device of the battery wafer testing machine according to claim 1, characterized in that, The outer end surface of the lifting block (7) is provided with a locking hole (702), which is connected to the through hole (701). The locking hole (702) is threaded with a locking screw inside the locking hole (702).

3. The small wafer automatic cleaning device of the battery wafer testing machine according to claim 1, wherein, The inner end face of the lifting block (7) is provided with a connecting groove (703), and the upper end face of the connecting groove (703) is provided with a connecting hole (7031). The connecting hole (7031) and the connecting groove (703) are interconnected.

4. The automatic cleaning device for small labels in a battery cell testing machine according to claim 1, characterized in that, The track groove (501) is provided with a fastening block (6) inside. A fastening screw (601) is welded to the outer end face of the fastening block (6). The fastening screw (601) is snapped into the connection hole (7031). A nut is connected to the surface of the fastening screw (601).

5. The automatic cleaning device for small labels in a battery cell testing machine according to claim 1, characterized in that, The upper surface of the base (1) is provided with marking lines (102), which are arranged in a crisscross structure.

6. The automatic cleaning device for small labels in a battery cell testing machine according to claim 1, characterized in that, The outer end face of the column (2) is uniformly provided with vertical grooves (201), and the outer end face of the column (2) is in contact with the inner end face of the through hole (701).

7. The automatic cleaning device for small labels in a battery cell testing machine according to claim 1, characterized in that, An indicator block (401) is fixedly installed on the outer end face of the connecting shaft (4), and the locking block (5) on the outer end face of the connecting shaft (4) is rotatably connected in the connecting groove (703) on the surface of the lifting block (7).

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