Testing device

Abstract

The utility model belongs to the technical field of air knife testing, and discloses a testing device. The testing device comprises a first sliding rod, a connecting piece and a second sliding rod. The first sliding rod extends in the X-axis direction, the connecting piece is arranged on the first sliding rod in a sliding mode in the X-axis direction, the second sliding rod is arranged on the connecting piece in a sliding mode in the Z-axis direction, and the anemograph is arranged on the second sliding rod. The anemograph serves as a core measuring element and is installed on the second sliding rod, and the positions of the anemograph in the X-axis direction and the Z-axis direction can be adjusted through the sliding connecting piece and the second sliding rod, so that the anemograph can capture and measure the wind speed conditions of the air knife at different positions and at different heights, and the air outlet uniformity of an air outlet of the air knife in the X-axis direction can be greatly improved. According to the utility model, whether the air outlet speed changes along the Z-axis direction or the air outlet speed changes along the Z-axis direction can be measured, thereby facilitating the rapid positioning of a problem area and the adjustment of air knife design or operation parameters, achieving the remarkable improvement of the air outlet uniformity, improving the production efficiency, and improving the product quality.

Description

Technical Field

[0001] The utility model relates to the technical field of air knife testing, in particular to a testing device. Background Art

[0002] Perovskite solar cells, hailed as the third generation of solar cells, offer advantages such as high photoelectric conversion efficiency, simple cell manufacturing process, and low cell power generation cost. Their photoelectric conversion efficiency is highly dependent on the quality of the perovskite film. In the industrialization of large-scale perovskite production, the air knife-assisted slit coating process is widely used in the preparation of perovskite films. The air knife utilizes airflow to accelerate the evaporation of the solvent within the liquid film, promoting uniform precipitation and rapid crystallization of the solute (i.e., the perovskite precursor) on the substrate, thereby forming a high-quality, dense perovskite film.

[0003] However, if the air knife outlet is uneven, the perovskite liquid film in different areas will receive different degrees of blowing, drying effects and different crystallization driving forces, resulting in uneven crystallization speed, morphology and distribution of the perovskite liquid film, thereby affecting the uniformity, crystallization quality and photoelectric performance of the film, and ultimately reducing the photoelectric conversion efficiency of the perovskite cell.

[0004] Therefore, it is necessary to provide a testing device to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a testing device with a simple structure and easy use, which can measure the uniformity of the air discharged from the wind knife outlet along the X-axis direction and the wind speed change along the Z-axis direction.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] A testing device comprising:

[0008] A first sliding bar extending along the X-axis direction;

[0009] A connecting member is slidably arranged on the first sliding rod along the X-axis direction;

[0010] The second sliding rod is slidably arranged on the connecting member along the Z-axis direction, and the anemometer is arranged on the second sliding rod.

[0011] Preferably, the first slide bar is provided with a first slide groove extending along the X-axis direction, the connecting member is provided with a first protrusion, and the first protrusion is slidably engaged with the first slide groove.

[0012] Preferably, the second slide rod is provided with a second slide groove extending along the Z-axis direction, the connecting member is provided with a first fixing hole, and the first locking member can pass through the second slide groove and the first fixing hole to fix the second slide rod to the connecting member.

[0013] Preferably, the connecting member is provided with a second protrusion, and the second protrusion is slidably engaged with the second sliding groove.

[0014] Preferably, the testing device further comprises:

[0015] The third sliding rod is slidably arranged on the connecting member along the Y-axis direction, and the third sliding rod is provided with a scale.

[0016] Preferably, the third slide rod is provided with a third slide groove extending along the Y-axis direction, the connecting member is provided with a second fixing hole, and the second locking member can pass through the third slide groove and the second fixing hole to fix the third slide rod to the connecting member.

[0017] Preferably, the connecting member is provided with a third protrusion, and the third protrusion is slidably engaged with the third sliding groove.

[0018] Preferably, the anemometer includes a fixed rod, and the second sliding rod includes a clamping assembly, and the clamping assembly includes:

[0019] Two clamping parts, wherein the opposite walls of the two clamping parts are each provided with a receiving groove, the two receiving grooves forming a receiving hole, the receiving hole extending along the Y-axis direction, and the fixing rod passing through the receiving hole;

[0020] A locking piece is provided, wherein the locking piece enables the two clamping parts to clamp the fixing rod.

[0021] Preferably, the fixing rod is provided with a scale.

[0022] Preferably, the testing device further comprises:

[0023] A workbench, the first sliding rod is fixed to the workbench, the connecting member is placed on the workbench, and the air knife is placed on the workbench.

[0024] Beneficial effects of the utility model:

[0025] This test device includes a first slide bar, a connector and a second slide bar. The first slide bar extends along the X-axis direction, the connector is slidably arranged on the first slide bar along the X-axis direction, the second slide bar is slidably arranged on the connector along the Z-axis direction, and the anemometer is arranged on the second slide bar. The first slide bar extends along the X-axis direction, the connector is slidably arranged on it, so that the connector can be adjusted in position in the X-axis direction, the second slide bar is slidably arranged on the connector along the Z-axis direction, so that the second slide bar can be adjusted in position in the Z-axis direction. The anemometer is installed on the second slide bar as the core measuring element. By sliding the connector and the second slide bar, the position of the anemometer in the X-axis direction and the Z-axis direction can be adjusted, so that the anemometer can capture and measure the wind speed of the wind knife at different positions and heights. The multi-dimensional adjustment mechanism of this measurement device ensures comprehensive and accurate air knife measurement. Both the uniformity of air discharge along the X-axis and the change in wind speed along the Z-axis can be measured and analyzed, helping to quickly locate problem areas and adjust the air knife design or operating parameters, thereby significantly improving air discharge uniformity, thereby increasing production efficiency and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the testing device provided by the utility model;

[0027] Figure 2 is a schematic diagram of the second sliding rod provided by the present utility model;

[0028] Figure 3 It is a schematic diagram of the connecting piece provided by the utility model.

[0029] In the picture:

[0030] 100. Wind Knife;

[0031] 1. First slide bar; 11. First slide slot;

[0032] 2. Connector; 21. First protrusion; 22. First fixing hole; 23. Second protrusion; 24. Second fixing hole; 25. Third protrusion;

[0033] 3. Second slide bar; 31. Second slide groove; 32. Clamping assembly; 321. Clamping portion; 322. Accommodating hole; 323. Locking member;

[0034] 4. Anemometer; 41. Fixing rod;

[0035] 5. Third slide bar; 51. Third slide slot;

[0036] 6. Workbench;

[0037] 71. First locking member; 72. Second locking member. DETAILED DESCRIPTION

[0038] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0039] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0040] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0041] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0042] Perovskite solar cells are known as the third generation of solar cells. They have the advantages of high photoelectric conversion efficiency, simple battery manufacturing process, and low battery power generation cost. Its photoelectric conversion efficiency is highly dependent on the quality of the perovskite film. In the process of large-scale perovskite industrialization, the air knife blowing assisted slit coating process is widely used in the preparation of perovskite films. The air knife uses air flow to accelerate the volatilization of the solvent in the liquid film, promotes the solute (ie, perovskite precursor) to be uniformly precipitated and rapidly crystallized on the substrate, thereby forming a high-quality, dense perovskite film. However, if the air outlet of the air knife is uneven, the perovskite liquid film in different areas will receive different degrees of blowing, drying effects and different crystallization driving forces, resulting in uneven crystallization speed, morphology and distribution of the perovskite liquid film, which in turn affects the uniformity, crystallization quality and photoelectric performance of the film, and ultimately reduces the photoelectric conversion efficiency of the perovskite cell.

[0043] To solve the above problems, Figure 1-Figure 3 As shown, this embodiment provides a testing device, which includes a first slide bar 1, a connecting member 2, and a second slide bar 3. The first slide bar 1 extends along the X-axis direction, the connecting member 2 is slidably arranged on the first slide bar 1 along the X-axis direction, the second slide bar 3 is slidably arranged on the connecting member 2 along the Z-axis direction, and the anemometer 4 is arranged on the second slide bar 3. The first slide bar 1 extends along the X-axis direction, and the connecting member 2 is slidably arranged on it, so that the connecting member 2 can be adjusted in position in the X-axis direction. The second slide bar 3 is slidably arranged on the connecting member 2 along the Z-axis direction, so that the second slide bar 3 can be adjusted in position in the Z-axis direction. The anemometer 4 is installed on the second slide bar 3 as a core measuring element. By sliding the connecting member 2 and the second slide bar 3, the position of the anemometer 4 in the X-axis direction and the Z-axis direction can be adjusted, so that the anemometer 4 can capture and measure the wind speed of the wind knife 100 at different positions and heights. The multi-dimensional adjustment mechanism of this measuring device ensures the comprehensiveness and accuracy of the measurement of the wind knife 100. Whether it is the uniformity of the air outlet of the wind knife 100 along the X-axis direction or the change in wind speed along the Z-axis direction, it can be measured and analyzed, which helps to quickly locate the problem area and adjust the design or operating parameters of the wind knife 100, thereby achieving a significant improvement in air uniformity, thereby improving production efficiency and product quality.

[0044] Specifically, if Figure 1 As shown, the first slide bar 1 defines a first slot 11 extending along the X-axis, and the connector 2 is provided with a first protrusion 21, which slides in engagement with the first slot 11. The first slot 11 provides a clear guide path for the first protrusion 21, ensuring that the connector 2 maintains straightness during sliding, minimizing the possibility of deviation from the predetermined path, and ensuring that the connector 2 can only move along the X-axis.

[0045] Specifically, if Figure 1As shown, the second slide bar 3 is provided with a second slide groove 31 extending along the Z-axis direction, and the connecting member 2 is provided with a first fixing hole 22. The first locking member 71 can pass through the second slide groove 31 and the first fixing hole 22 to fix the second slide bar 3 to the connecting member 2. After sliding the second slide bar 3 to the appropriate position, the first locking member 71 is passed through the second slide groove 31 and the first fixing hole 22 and locked, so that the second slide bar 3 is fixed to the connecting member 2. This arrangement allows for easy adjustment of the position of the second slide bar 3 in the Z-axis direction, thereby achieving adjustment of the position of the anemometer 4 in the Z-axis direction.

[0046] In this embodiment, the first locking member 71 is a screw. It should be noted that this embodiment does not limit the specific structure of the first locking member 71. In the prior art, any structure that can fix the second slide bar 3 and the connecting member 2 can be used as the first locking member 71 in this embodiment.

[0047] In this embodiment, if Figure 1 、 Figure 3 As shown, the connecting member 2 is provided with a second protrusion 23, which slides in engagement with a second slide groove 31. The interaction between the second slide groove 31 and the second protrusion 23 provides a clear guide path for the movement of the second slide bar 3, ensuring that the second slide bar 3 maintains straightness during sliding, reducing the possibility of deviation from the predetermined path, and ensuring that the second slide bar 3 can only move along the Z-axis.

[0048] In an optional embodiment, Figure 3 As shown, the first fixing hole 22 is formed on the second protrusion 23. After the first locking member 71 passes through the second sliding groove 31 and the first fixing hole 22, it not only locks the position of the second slide bar 3, but also strengthens the connection strength between the connecting member 2 and the second slide bar 3 through the second protrusion 23, thereby improving the stability of the overall structure, simplifying the design of the connecting member 2, and reducing unnecessary processing steps and costs.

[0049] It should be noted that the number of first fixing holes 22 is not limited; multiple first fixing holes 22 are spaced apart along the Z-axis, and multiple first locking members 71 are respectively inserted into the multiple first fixing holes 22 to achieve a multi-point fixation effect, thereby improving the stability of the second slide bar 3. For example, in this embodiment, there are two first fixing holes 22.

[0050] Specifically, if Figure 1As shown, this test device also includes a third slide bar 5, which is slidably arranged on the connecting member 2 along the Y-axis direction, and a scale is provided on the third slide bar 5. By sliding the third slide bar 5, the length of the third slide bar 5 extending from the connecting member 2 can be adjusted, and the length value can be intuitively read according to the scale. After sliding the third slide bar 5 to the preset extension length, the wind knife 100 is pressed against the end of the third slide bar 5. By adjusting the third slide bar 5, the wind knife 100 can be quickly placed in the preset position so that the anemometer 4 is directly opposite the air outlet of the wind knife 100, ensuring the smooth progress of subsequent tests without the need for additional measuring tools, thereby improving work efficiency and accuracy.

[0051] In this embodiment, if Figure 1 As shown, the third slide bar 5 defines a third slot 51 extending along the Y-axis, and the connector 2 defines a second fixing hole 24. The second locking member 72 can pass through the third slot 51 and the second fixing hole 24 to secure the third slide bar 5 to the connector 2. After sliding the third slide bar 5 to a desired position, the second locking member 72 is passed through the third slot 51 and the second fixing hole 24 and tightened, thereby securing the third slide bar 5 to the connector 2. This arrangement allows for easy adjustment of the position of the third slide bar 5 along the Y-axis.

[0052] In this embodiment, the second locking member 72 is a screw. It should be noted that this embodiment does not limit the specific structure of the second locking member 72. In the prior art, any structure that can fix the third slide bar 5 to the connecting member 2 can be used as the second locking member 72 in this embodiment.

[0053] Specifically, if Figure 1 、 Figure 3 As shown, the connecting member 2 is provided with a third protrusion 25, which slides in engagement with the third sliding groove 51. The interaction between the third sliding groove 51 and the third protrusion 25 provides a clear guide path for the movement of the third slide bar 5, ensuring that the third slide bar 5 maintains straightness during sliding, reducing the possibility of deviation from the predetermined path, and ensuring that the third slide bar 5 can only move along the Y-axis.

[0054] In an optional embodiment, Figure 3 As shown, the second fixing hole 24 is formed on the third protrusion 25. After the second locking member 72 passes through the third sliding groove 51 and the second fixing hole 24, it not only locks the position of the third slide bar 5, but also strengthens the connection strength between the connecting member 2 and the third slide bar 5 through the third protrusion 25, thereby improving the stability of the overall structure, simplifying the design of the connecting member 2, and reducing unnecessary processing steps and costs.

[0055] It should be noted that the number of second fixing holes 24 is not limited; multiple second fixing holes 24 are spaced apart along the Y-axis direction, and multiple second locking members 72 are respectively inserted into the multiple second fixing holes 24 to achieve a multi-point fixation effect, thereby improving the stability of the third slide bar 5. For example, the number of second fixing holes 24 in this embodiment is two.

[0056] Specifically, if Figure 1 、 Figure 2 As shown, the anemometer 4 includes a fixed rod 41, and the second slide bar 3 includes a clamping assembly 32. The clamping assembly 32 includes two clamping parts 321 and a locking member 323. The opposite walls of the two clamping parts 321 are each provided with a receiving groove. The two receiving grooves form a receiving hole 322. The receiving hole 322 extends along the Y-axis direction. The fixed rod 41 is inserted into the receiving hole 322. The locking member 323 enables the two clamping parts 321 to clamp the fixed rod 41. When the locking member 323 is not locked, the fixed rod 41 can slide freely along the receiving hole 322 to change the displacement of the anemometer 4 in the Y-axis direction. When the anemometer 4 slides to the point where it is directly opposite the air outlet of the wind knife 100, the locking member 323 is used to lock it, so that the two clamping parts 321 clamp the fixed rod 41, thereby fixing the anemometer 4. At this time, the anemometer 4 is directly opposite the air outlet of the wind knife 100, and subsequent testing work can be carried out.

[0057] In this embodiment, the locking member 323 is a screw. It should be noted that this embodiment does not limit the specific structure of the locking member 323. In the prior art, any structure that can enable the two clamping portions 321 to clamp the fixing rod 41 can be used as the locking member 323 in this embodiment.

[0058] In the specific implementation process, Figure 2 As shown, a receiving groove is provided on the top surface of the second slide bar 3. At this time, the end of the second slide bar 3 is a clamping portion 321. After placing another clamping portion 321 on the end of the second slide bar 3, the anemometer 4 is moved to a suitable position, and the locking member 323 is used to fix the other clamping portion 321 to the second slide bar 3. No other complex design is required, which is simpler and faster.

[0059] Furthermore, a scale is provided on the fixing rod 41. The scale can quantify the distance moved by the anemometer 4 along the Y-axis direction, and the anemometer 4 can be more conveniently aligned with the air outlet of the wind knife 100 through the data.

[0060] Specifically, if Figure 1 As shown, the test device further includes a workbench 6, the first slide bar 1 is fixed to the workbench 6, the connecting member 2 is placed on the workbench 6, and the air knife 100 is placed on the workbench 6. The workbench 6 provides a stable support platform for various components in the test device.

[0061] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A testing device, characterized in that: include: A first sliding bar (1) extending along the X-axis direction; A connecting member (2) is slidably arranged on the first sliding rod (1) along the X-axis direction; A second sliding rod (3) is slidably arranged on the connecting member (2) along the Z-axis direction; The anemometer (4) includes a fixed rod (41), the second sliding rod (3) includes a clamping assembly (32), the clamping assembly (32) includes two clamping parts (321) and a locking member (323), the two clamping parts (321) have opposite wall surfaces each provided with a receiving groove, the two receiving grooves form a receiving hole (322), the receiving hole (322) extends along the Y-axis direction, the fixed rod (41) is passed through the receiving hole (322), and the locking member (323) enables the two clamping parts (321) to clamp the fixed rod (41).

2. The testing device according to claim 1, wherein: The first slide bar (1) is provided with a first slide groove (11) extending along the X-axis direction, and the connecting member (2) is provided with a first protrusion (21), and the first protrusion (21) is slidably matched with the first slide groove (11).

3. The testing device according to claim 1, wherein: The second slide rod (3) is provided with a second slide groove (31) extending along the Z-axis direction, the connecting member (2) is provided with a first fixing hole (22), and the first locking member (71) can pass through the second slide groove (31) and the first fixing hole (22) to fix the second slide rod (3) to the connecting member (2).

4. The testing device according to claim 3, characterized in that: The connecting member (2) is provided with a second protrusion (23), and the second protrusion (23) is slidably engaged with the second sliding groove (31).

5. The testing device according to claim 1, wherein: The testing device further comprises: The third slide bar (5) is slidably arranged on the connecting member (2) along the Y-axis direction, and a scale is arranged on the third slide bar (5).

6. The testing device according to claim 5, characterized in that: The third slide bar (5) is provided with a third slide groove (51) extending along the Y-axis direction, the connecting member (2) is provided with a second fixing hole (24), and the second locking member (72) can pass through the third slide groove (51) and the second fixing hole (24) to fix the third slide bar (5) to the connecting member (2).

7. The testing device according to claim 6, characterized in that The connecting member (2) is provided with a third protrusion (25), and the third protrusion (25) is slidably engaged with the third sliding groove (51).

8. The testing device according to claim 1, wherein: The fixing rod (41) is provided with a scale.

9. The testing device according to any one of claims 1 to 7, characterized in that: The testing device further comprises: A workbench (6), the first sliding rod (1) is fixed to the workbench (6), the connecting member (2) is placed on the workbench (6), and the wind knife (100) is placed on the workbench (6).

Images