Battery piece testing device
By setting up adjustable probe strip spacing and laser alignment technology in the cell test device, the problem of battery cell testing time and cost in the prior art is solved, and the effect of high-precision alignment and reducing replacement cost is achieved.
Patent Information
- Application Number
- CN202420907833.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-28
AI Technical Summary
When aligning the grid structure of the existing battery cell, it requires manual visual inspection, which takes a long time and is prone to errors. The size changes of large-size battery cells lead to the inability to adapt to the card slot design, which increases the replacement cost.
A battery cell testing device is designed, with adjustable spacing between the probe bars and a laser device is installed on the probe bars. The positioning accuracy is improved through laser aiding alignment, and the battery cell slot is not required for positioning.
Reduces alignment time, improves test accuracy and accuracy, and reduces the cost of replacement of test devices due to changes in cell size.
Smart Images
Figure CN222192308U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of photovoltaic technology, and in particular to a cell testing device. Background Art
[0002] Currently, most solar cells have grid lines on the front and back. In order to adapt to the grid lines on the front and back of the cells, many test equipment manufacturers have equipped their equipment with a probe plate structure with 8-16 rows of probes, or even a double-sided probe plate structure with 8-16 rows of needles.
[0003] At present, the probe disk structure of test equipment manufacturers is to manually align the battery grid lines for measurement, which takes a lot of time and easily causes the probes to be misaligned with the grid lines, resulting in abnormal test data. Some manufacturers design corresponding card slots to fix the battery cells, optimize the alignment of the probes and grid lines, and reduce the test time; however, large-size battery cells are currently the mainstream battery optimization idea. If the size is slightly changed, such as the spacing between the main grids, the card slot design cannot adapt to the battery size, and the card slot of the corresponding size needs to be replaced, resulting in additional cost expenditure. Utility Model Content
[0004] In view of this, the present application provides a cell testing device, which sets the spacing between adjacent probe bars to be adjustable and provides a laser device on the probe bars, so that the probes can be aligned and positioned without the probe bars contacting the cell main grid, thereby improving the positioning accuracy.
[0005] In order to achieve the above objectives, this application provides the following technical solutions:
[0006] A battery cell testing device, comprising:
[0007] Probe plate;
[0008] A plurality of probe strips arranged in parallel are slidably connected to the probe plate, and the spacing between the probe strips is adjustable;
[0009] A plurality of probes are distributed along the length direction of the probe strip, and the probes are perpendicular to the probe disk;
[0010] A laser device is arranged on the probe bar. The laser light emitted by the laser device can be projected onto the surface of the battery cell and is used to assist the alignment of the probe with the main grid of the battery cell.
[0011] Optionally, the probe plate is provided with slide rails parallel to each other, and both ends of the probe bar are slidably connected to the slide rails respectively.
[0012] Optionally, it also includes a limit stop bar, which is arranged at both ends of the slide rail in the length direction.
[0013] Optionally, the length of the slide rail is greater than or equal to the length of the battery cell.
[0014] Optionally, the laser device and the probe have independent power supply systems.
[0015] Optionally, the length of the laser device is smaller than the length of the probe.
[0016] Optionally, the laser emitted by the laser device is a point laser, the number of the laser devices on each of the probe bars is at least two, and one laser device is respectively provided at both ends of the probe bar in the length direction.
[0017] Optionally, one laser device is disposed between each of adjacent probes.
[0018] Optionally, the laser emitted by the laser device is a line laser, and the number of the laser device on each probe bar is at least one.
[0019] Optionally, the probe plate includes an upper probe plate and / or a lower probe plate, and the upper probe plate and the lower probe plate can cooperate with each other and detect a battery cell at the same time.
[0020] The cell testing device provided in the present application has a plurality of probe bars connected to a probe disk by sliding so that the spacing between the probe bars can be adjusted, thereby being suitable for main grids of different sizes on cell boards. A laser device is also provided on the probe bar, so that the probe can be slid to align with the main grid by adjusting the probe bar without the probe contacting the main grid of the cell, thereby improving the positioning accuracy. In addition, the laser light emitted by the laser device on the two outermost probe bars on the probe disk can be used as a positioning line aligned with the edge of the cell, and then the cell can be placed according to the positioning line without providing a cell slot for positioning. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.
[0022] Figure 1 This is a schematic diagram of the battery cell testing device of this application.
[0023] exist Figure 1 middle:
[0024] 1. Laser device; 2. Probe; 3. Main grid; 4. Solar cell; 5. Lower probe plate; 6. Upper probe plate; 7. Probe strip. DETAILED DESCRIPTION
[0025] The present application provides a cell testing device, which sets the spacing between adjacent probe bars to be adjustable and provides a laser device on the probe bars, so that the probes on the probe bars can be aligned and positioned without contacting the main grid of the cell, thereby improving the positioning accuracy.
[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0027] like Figure 1 As shown, the embodiment of the present application provides a battery cell testing device, comprising:
[0028] A probe plate arranged in parallel above and / or below the battery sheet 4, the probe plate being used to install a probe strip 7;
[0029] The probe plate is slidably connected with a plurality of parallel probe bars 7. Usually, one probe plate is provided with 8-16 probe bars 7. Therefore, the spacing between the probe bars 7 can be adjusted by sliding, so as to adapt to different main grid 3 spacings on battery cells 4 of different sizes.
[0030] A plurality of probes 2 are distributed along the length direction of the probe strip 7, and the probes 2 are arranged perpendicular to the probe plate; the probes 2 can be fixedly arranged on the probe strip 7, or can be arranged to slide along the length direction of the probe strip 7 as required;
[0031] A laser device 1 is also provided on the probe bar 7, and the laser device 1 can emit laser light. In this way, when the probe 2 has not yet contacted the main grid 3, the light emitted by the laser device 1 can be projected onto the surface of the battery cell 4, so that it can be visually judged whether the probe bar 7 has slid into place and whether the probe 2 on the probe bar 7 can be aligned with the main grid 3.
[0032] The battery cell 4 testing device provided in the present application has a laser device 1 arranged on the probe bar 7 which can emit laser. By projecting laser light onto the surface of the battery cell 4 for visual assistance, the probe bar 7 can be quickly slid and aligned with the corresponding main grid 3, so that the probe 2 is aligned with the main grid 3, thereby reducing the debugging time and improving the test accuracy and precision. At the same time, the laser emitted by the laser device 1 on the two outer probe bars 7 on the probe disk can be used as a positioning line aligned with the edge of the battery cell 4, and then the battery cell 4 is placed according to the positioning line, without the need to set a battery cell 4 slot for positioning, and without the need to replace probe disks and battery cell 4 slots of different sizes at any time according to the size of the battery cell 4, thereby reducing the additional cost caused by the replacement of the test device due to the change in the size of the battery cell 4.
[0033] In a preferred embodiment, in order to realize the sliding connection between the probe bar 7 and the probe disk, two parallel slide rails are arranged on the probe disk, and the two ends of the probe bar 7 are respectively slidably connected to the slide rails. For example, sliders can be arranged at the two ends of the probe bar 7, and the sliders are embedded in the slide grooves of the slide rails; the sliding of the probe bar 7 relative to the slide rails can be realized by manual pushing and pulling. Of course, the sliding of the probe bar 7 relative to the slide rails can also be realized by arranging power devices such as motors at both ends of each probe bar 7.
[0034] In a preferred embodiment, limit stop bars are also provided at both ends of the slide rail in the length direction to prevent the probe bar 7 from falling off from the end of the slide rail. Specifically, the limit stop bar includes a first stop bar and a second stop bar, and both ends of the first stop bar are respectively connected to the first ends of the two slide rails, and both ends of the second stop bar are respectively connected to the other ends of the two slide rails.
[0035] In a preferred embodiment, the length of the slide rail is greater than or equal to the length of the battery cell 4 .
[0036] Since the length of the slide rail is greater than or equal to the length of the battery cell 4, the spacing between the two probe bars 7 can be greater than or equal to the length of the battery cell 4, and the spacing between the two probe bars 7 closer to the outside can be set to the length of the battery cell 4, so that the battery cell 4 can be positioned and the edge of the battery cell 4 can be covered, thereby maintaining the ability to detect the main grid 3 at the edge of the battery cell 4.
[0037] In a preferred embodiment, a fixing device is further included, and the probe bar 7 can be fixed on the slide rail through the fixing device.
[0038] When the probe bar 7 slides into place and the probe 2 on it is aligned with the corresponding main grid 3, it can be fixed relative to the slide rail to prevent other operations from causing unnecessary displacement of the probe bar 7 and affecting the detection. Specifically, a thread can be set on the part of the probe bar 7 close to the slide rail and cooperate with a nut. The nut can be screwed in / out to make it abut against the slide rail to lock / unlock the probe bar 7.
[0039] In a preferred embodiment, the laser device 1 and the probe 2 have independent power supply systems.
[0040] The laser device 1 and the probe 2 have independent power supply systems, that is, the laser device 1 and the detection system are powered independently of each other, and a circuit failure of the laser device 1 which plays a role in positioning and alignment will not affect the test process of the probe 2 which serves as the detection device.
[0041] In a preferred embodiment, the length of the laser device 1 is smaller than that of the probe 2 , so that when the end of the probe 2 contacts the cell 4 , the laser device 1 can be prevented from abutting against the surface of the cell 4 and damaging the main grid 3 of the cell 4 .
[0042] In a preferred embodiment, the laser emitted by the laser device 1 is a point laser, which is projected onto the surface of the cell 4 as a laser point. At this time, there are at least two laser devices 1 on each probe bar 7, and a laser device 1 is respectively provided at both ends of the probe bar 7 in the length direction. According to the two-point line principle, after the laser points emitted by at least two laser devices 1 are aligned with the main grid 3 of the cell 4, the alignment of the probe and the main grid 3 is completed, and by providing two laser devices 1 at both ends of the probe bar 7, the alignment and positioning accuracy can be further improved.
[0043] Further, if Figure 1 As shown, in order to further improve the alignment and positioning accuracy, a laser device 1 is provided between adjacent probes 2 on the probe bar 7 .
[0044] In a preferred embodiment, the laser emitted by the laser device 1 is a line laser, and the laser device 1 projects a straight line onto the surface of the battery cell 4. When the straight line is adjusted to align with the main grid 3 of the battery cell 4, the alignment of the probe with the main grid 3 of the battery cell 4 is completed; installing a laser device 1 on each probe bar 7 can satisfy the alignment of the probe 2 on the auxiliary probe bar 7 with the main grid 3 of the battery cell 4. Of course, multiple laser devices 1 can also be installed to improve positioning accuracy.
[0045] Of course, the laser device 1 capable of emitting surface laser light may also be used to assist in the alignment and positioning of the probes 2 on the probe bar 7 and the main grid 3 of the cell 4 , which will not be described in detail here.
[0046] In a preferred embodiment, Figure 1 As shown, the probe disk includes a lower probe disk 5 arranged below the battery cell 4 and / or an upper probe disk 6 arranged above the battery cell 4. The lower probe disk 5 and the upper probe disk 6 are probe disks for respectively detecting the main grid 3 on the front and back sides of the battery cell 4. As needed, the lower probe disk 5 and the upper probe disk 6 can respectively detect the battery cell 4. The lower probe disk 5 and the upper probe disk 6 can also cooperate with each other and detect one battery cell 4 at the same time.
[0047] The basic principles of the present application are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present application. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not for limitation, and the above details do not limit the present application to being implemented by adopting the above specific details.
[0048] The block diagrams of the devices, apparatuses, equipment, and systems involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagram. As will be appreciated by those skilled in the art, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open words, referring to "including but not limited to", and can be used interchangeably with them. The words "or" and "and" used here refer to the words "or" and can be used interchangeably with them, unless the context clearly indicates otherwise. The words "such as" used here refer to the phrase "such as but not limited to", and can be used interchangeably with them.
[0049] It should also be noted that in the apparatus, device and method of the present application, each component or each step can be decomposed or recombined, and these decompositions or recombinations should be regarded as equivalent solutions of the present application.
[0050] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.
[0051] It should be understood that the qualifiers "first", "second", "third", "fourth", "fifth" and "sixth" used in the description of the embodiments of the present application are only used to more clearly explain the technical solutions and cannot be used to limit the scope of protection of the present application.
[0052] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.
Claims
1. A battery cell testing device, characterized in that: include: Probe plate; A plurality of probe strips arranged in parallel are slidably connected to the probe plate, and the spacing between the probe strips is adjustable; A plurality of probes are distributed along the length direction of the probe strip, and the probes are perpendicular to the probe disk; A laser device is arranged on the probe bar. The laser light emitted by the laser device can be projected onto the surface of the battery cell and is used to assist the alignment of the probe with the main grid of the battery cell.
2. The cell testing device according to claim 1, characterized in that: The probe plate is provided with slide rails parallel to each other, and the two ends of the probe strip are respectively slidably connected to the slide rails.
3. The battery cell testing device according to claim 2, characterized in that: It also includes a limit stop bar, which is arranged at both ends of the slide rail in the length direction.
4. The cell testing device according to claim 2, characterized in that: The length of the slide rail is greater than or equal to the length of the battery cell.
5. The cell testing device according to claim 1, characterized in that: The laser device and the probe have independent power supply systems.
6. The cell testing device according to claim 1, characterized in that: The length of the laser device is shorter than the length of the probe.
7. The cell testing device according to claim 1, characterized in that: The laser emitted by the laser device is a point laser. The number of the laser devices on each of the probe bars is at least two, and one laser device is respectively arranged at both ends of the probe bar in the length direction.
8. The battery cell testing device according to claim 7, characterized in that: One laser device is arranged between each of the adjacent probes.
9. The cell testing device according to claim 1, characterized in that: The laser emitted by the laser device is a line laser, and the number of the laser device on each probe bar is at least one.
10. The battery cell testing device according to claim 1, characterized in that: The probe plate includes an upper probe plate and / or a lower probe plate. The upper probe plate and the lower probe plate can cooperate with each other and detect a battery cell at the same time.