Probe bed for battery production

Abstract

The utility model relates to the technical field of battery manufacturing, in particular to a probe bed for battery production. The probe bed for battery production comprises a probe bed body and a probe assembly, the probe assembly comprises probes and a mounting base, the mounting base is provided with a plurality of probes in the length direction of the mounting base, the mounting base is mounted on the probe bed body, the probe bed body is provided with a placement station, the probe assembly is located on one side of the placement station, and the placement station is detachably provided with a correction plate. A plurality of detection hole groups are formed in the correction plate, detection holes of the detection hole groups are matched with the probes in shape, and the detection hole groups correspond to the preset positions of the probe assemblies so as to detect the actual mounting positions of the probes. The detection hole group can accurately detect whether the actual installation position of the probe is deviated or not, so that the deviated probe can be adjusted, the safety distance between the probe and the pole is not increased when the probe works by adjusting the deviated probe, in addition, the effective contact area between the probe and the pole can be ensured, and the problem of short circuit of a positive electrode and a negative electrode can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, and in particular to a probe bed for battery production. Background Technology

[0002] To increase production capacity and the number of batteries processed per cycle, it is necessary to increase the number of channels on the tray. However, increasing the number of tray channels introduces the following technical risks: First, the tray size increases. Since the tray is injection molded, the cumulative tolerance of the channel center distance increases accordingly. Combined with design errors in the needle bed positioning mechanism and probe mechanism, this leads to excessive misalignment between the tray and the needle bed. Excessive deviation between the tray and the needle bed reduces the effective contact area between the probe and the terminal, i.e., reduces the probe's flow area. In severe cases, this can cause localized overheating of the probe and terminal, abnormal contact resistance, and other issues. Furthermore, taking a cylindrical battery with positive and negative electrodes on the same side, with the terminal as the negative electrode and the top cover as the positive electrode, as an example, excessive misalignment between the tray and the needle bed can also result in an insufficient safe distance between the positive probe and the negative terminal, failing to meet safety distance requirements and causing production disruptions.

[0003] Therefore, there is an urgent need for a probe bed for battery production to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this invention is to provide a probe bed for battery production that can meet the safety distance requirements between the probe and the electrode post and ensure the effective contact area between the probe and the electrode post.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A probe bed for battery production is provided, comprising a bed body and a probe assembly. The probe assembly includes probes and a mounting base. Multiple probes are mounted on the mounting base along its length. The mounting base is mounted on the bed body. The bed body has a placement station. The probe assembly is located on one side of the placement station. A calibration plate is detachably mounted on the placement station. The calibration plate has multiple sets of detection holes. The detection holes of the detection holes are adapted to the shape of the probes. The detection holes correspond to preset positions of the probe assembly to detect the actual installation position of the probes.

[0007] This utility model has at least the following beneficial effects:

[0008] The probe bed for battery production provided by this utility model has a detection hole group whose detection hole shape is adapted to the probe, and the detection hole group corresponds to the preset position of the probe assembly. In this way, the detection hole group can accurately detect whether the actual installation position of the probe is offset, so that the position of the offset probe can be adjusted. Adjusting the offset probe can not increase the safe distance between the probe and the terminal when the probe is working. In addition, it can also ensure the effective contact area between the probe and the terminal, and avoid the problem of short circuit between the positive and negative electrodes. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0010] Figure 1 A schematic diagram of the structure of a probe bed for battery production provided in an embodiment of this utility model;

[0011] Figure 2 A first top view of the calibration plate provided in an embodiment of this utility model;

[0012] Figure 3 A second top view of the calibration plate provided in an embodiment of this utility model;

[0013] Figure 4 An isometric view of the correction plate provided in an embodiment of this utility model.

[0014] In the picture:

[0015] 1. Calibration plate; 11. Detection hole group; 111. Detection hole; 12. Through hole; 13. Tooling support; 14. Gasket; 15. Recess; 2. Probe assembly; 21. Probe; 22. Mounting base; 3. Needle bed body; 4. Nozzle assembly; 5. Adjustment component. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0017] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0019] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0020] In order to meet the safety requirements of the probe bed and ensure the effective contact area between the probe and the electrode, this embodiment provides a probe bed for battery production.

[0021] The following describes this embodiment. Figures 1 to 4 The following explanation is provided. In this specification, the two sides of the mounting base 22 refer to the two sides of the central axis a along the length direction of the mounting base 22.

[0022] like Figure 1As shown, the probe bed for battery production includes a probe bed body 3 and a probe assembly 2. The probe assembly 2 includes probes 21 and a mounting base 22. Multiple probes 21 are mounted on the mounting base 22 along its length. The mounting base 22 is mounted on the probe bed body 3. The probe bed body 3 has a placement station. The probe assembly 2 is located on one side of the placement station. A calibration plate 1 is detachably mounted on the placement station. The calibration plate 1 has multiple detection hole groups 11. The detection holes 111 of the detection hole groups 11 are adapted to the shape of the probes 21. The detection hole groups 11 correspond to the preset positions of the probe assembly 2 to detect the actual installation position of the probes 21.

[0023] The probe bed for battery production provided in this embodiment has a detection hole group 111 whose shape is adapted to the probe 21, and the detection hole group 11 corresponds to the preset position of the probe assembly 2. In this way, the detection hole group 11 can accurately detect whether the actual installation position of the probe 21 has been offset, so as to adjust the position of the offset probe 21. Adjusting the offset probe 21 can prevent the safe distance between the probe 21 and the battery terminal from increasing when the probe 21 is working. In addition, it can also ensure the effective contact area between the probe 21 and the battery terminal, ensure the current flow area of ​​the probe 21, and avoid the problem of local overheating of the probe 21 and the battery terminal due to the small current flow area of ​​the probe 21.

[0024] It should be noted that when the probes 21 are installed on the mounting base 22, they are spaced apart along the length of the mounting base 22. The probe bed for battery production provided in this embodiment can effectively avoid the matching error between the battery tray and the probe bed, and solve the safety risks of insufficient effective contact area of ​​the probes 21 and short circuit between the positive and negative electrodes.

[0025] In some embodiments, such as in combination Figure 2 and Figure 3 As shown, multiple detection hole groups 11 are arranged in rows on the calibration plate 1 along the length of the mounting base 22, and the detection hole groups 11 are arranged in rows on at least both sides of the calibration plate 1. Specifically, each side of the calibration plate 1 has one row of detection hole groups 11, which allows for precise detection of the installation position of the probes 21 at both ends of the mounting base 22. Since the probes 21 are installed from the inside out along both sides of the central axis in the width direction of the mounting surface of the mounting base 22 during processing, the distance from the probe 21 to the central axis in the width direction of the mounting surface of the mounting base 22 can be defined as the center distance. During installation, the cumulative tolerance of the center distances of each probe 21 gradually increases. Therefore, by detecting the actual positions of the probes 21 installed on both sides of the mounting base 22, the purpose of detecting all the probes 21 actually installed on the mounting base 22 can be achieved. In other embodiments, multiple rows of detection hole groups 11 are provided on each side of the calibration plate 1 along the length of the mounting base 22. Providing multiple rows of detection hole groups 11 can further improve the accuracy of probe 21 position correction.

[0026] In some embodiments, a group of detection holes 11 is arranged in a row at least in the middle of the calibration plate 1 along the length of the mounting base 22. When the probe 21 is installed, if the probe 21 is misaligned during its initial installation on the mounting base 22, the cumulative tolerance of the center distance of each probe 21 will be larger. Therefore, the probe assembly 2 on the mounting base 22 can also be detected by detecting whether the position of the probe 21 in the middle of the mounting base 22 has shifted.

[0027] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, the calibration plate 1 has detection hole groups 11 in its center and on both sides. More specifically, the calibration plate 1 has two rows of detection hole groups 11 in its center, and one row of detection hole groups 11 on each side edge, which satisfies the requirement for tray inspection with an even number of channels. Of course, in some other embodiments, the calibration plate 1 has one row of detection hole groups 11 in its center, and one row of detection hole groups 11 on each side edge, which satisfies the requirement for tray inspection with an odd number of channels.

[0028] Normally, when the probes 21 located in the middle and on both sides of the mounting base 22 can penetrate the detection hole group 11, the tolerances of the probes 21 other than those located in the middle and on both sides of the mounting base 22 are within the allowable range. Therefore, a through hole 12 for the probes 21 to pass through is provided between the detection hole group 11 located in the middle of the calibration plate 1 and the detection hole group 11 located on the edge of the calibration plate 1. To facilitate processing, a larger through hole 12 can be provided between the detection hole group 11 located in the middle of the calibration plate 1 and the detection hole group 11 located on both sides of the calibration plate 1 to allow the probe assembly 2 to pass through.

[0029] Since the probes 21 are installed sequentially from the middle to both ends of the mounting base 22, the installation accuracy is highest at the middle and lowest at both ends. During testing, as long as the positions of the probes 21 at the middle and ends correspond to the detection holes 111, it can be concluded that the installation positions of the probes 21 on the mounting base 22 are within the allowable tolerances. If the position of the probe 21 in the middle of the mounting base 22 deviates during testing, it indicates that the positions of the probes 21 on the entire mounting base 22 are deviated. In this case, it is necessary to adjust the position of the mounting base 22 (moving it along the direction perpendicular to the length of the mounting base 22), and then fine-tune the position of the probes 21 until the probes 21 correspond to the detection holes 111. If the position of the probe 21 in the middle is not deviated, but the position of the probe 21 at the ends is deviated, it indicates that the deviation is small, and the position of the probes 21 at the ends can be adjusted directly.

[0030] Furthermore, the through-hole 12 allows for observation of whether the probes 21 are all within a certain range, preventing excessive deviation in the installation position of any probe 21. Along the length of the mounting base 22, the center of the line connecting the two furthest groups of detection holes in the same row is located on the central axis of the through-hole 12. The diameter of the through-hole 12 is equal to the smallest diameter that can encompass the detection hole 111. Here, the detection hole 111 includes the detection holes 111 corresponding to the current probe, voltage probe, and temperature probe within a small area, as well as the recess corresponding to the negative pressure nozzle.

[0031] It should be noted that the detection hole 111 is a through hole, and the central axis of the detection hole 111 is collinear with the central axis of the preset position of the probe 21. The tolerance range of the detection hole 111 is the allowable installation tolerance range of the probe 21.

[0032] In some embodiments, there are multiple through holes 12, and the through holes 12 should correspond to the positions of the probes 21, so that the probe assembly 2 can pass through the through holes 12 to avoid interference with the calibration plate 1. For example, multiple rows of through holes 12 are also provided between the detection hole group 11 in the middle of the calibration plate 1 and the detection hole groups 11 on both sides of the calibration plate 1, wherein the number of rows of through holes 12 is 3 to 10.

[0033] Of course, in some other embodiments, the calibration plate 1 is provided with a detection hole 111 for each probe 21. This arrangement can further improve the detection accuracy, ensure that each probe 21 can be detected, and avoid probe 21 offset caused by probe 21 installation error.

[0034] In some other embodiments, the detection hole group 11 is provided at least at the four corners of the calibration plate 1. This also enables the position detection of the probe 21.

[0035] In some embodiments, such as Figure 4 As shown, the probe bed for battery production also includes tooling supports 13, with multiple tooling supports 13 mounted on the side of the calibration plate 1 facing away from the probe assembly 2. The tooling supports 13 are used to fix the calibration plate 1 in place. Furthermore, to prevent impact between the calibration plate 1 and the battery tray, such as... Figure 1 As shown, a pad 14 is also provided on the side of the calibration plate 1 facing the probe assembly 2. The pad 14 can prevent the calibration plate 1 from colliding with the battery tray.

[0036] In some embodiments, such as Figure 3 As shown, the probe bed for battery production also includes a suction nozzle assembly 4, which is located on the other side of the placement station, that is, on the side of the calibration plate 1 opposite to the probe assembly 2. The calibration plate 1 has a recess 15 that is adapted to the suction nozzle assembly 4. The suction nozzle assembly 4 extends into the recess 15 and is aligned with the liquid injection hole of the cylindrical battery. For example, the suction nozzle assembly 4 is fixed to the probe bed body 3 by a mounting base 22.

[0037] In some embodiments, such as Figure 1 As shown, the recess 15 is connected to the detection hole group 11, and the detection hole group 11 is located within the area enclosed by the recess 15. The recess 15 can detect the position of the nozzle assembly 4, thereby ensuring that the nozzle assembly 4 is aligned with the liquid injection hole of the cylindrical battery.

[0038] For example, the depth of the recess 15 is 2mm-5mm. For example, the depth of the recess 15 is 2mm, 3mm, 4mm or 5mm. In this embodiment, no specific limitation is made.

[0039] The probe bed for battery production also includes an adjusting member 5. The adjusting member 5 is arranged around the calibration plate 1 along the length direction and width direction of the mounting base 22. The adjusting member 5 is slidably mounted on the body 3 of the probe bed. For example, the adjusting member 5 has an elongated hole. The adjusting member 5 is fixed to the body 3 of the probe bed by bolts. The relative position of the adjusting member 5 and the body 3 of the probe bed can be adjusted by loosening the bolts.

[0040] The process of using the probe bed tooling for battery production is as follows:

[0041] The calibration plate 1 is placed in the storage position of the probe bed tooling for battery production using the tooling support 13. Then, the first set of probe assembly 2 is pre-installed. The battery frame is pressed down, and the probes of the probe assembly 2 are attempted to be inserted into the detection holes 111. The battery frame is pressed down repeatedly, and the length and width positions of the probe assembly 2 are adjusted to ensure that each probe 21 can be smoothly inserted into the corresponding detection hole 111. Then, the remaining probe assemblies 2 are installed and adjusted one by one using the above method to ensure that each probe 21 can be inserted into the detection hole 111.

[0042] Furthermore, the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A probe bed for battery production, characterized in that, The device includes a needle bed body (3) and a probe assembly (2). The probe assembly (2) includes probes (21) and a mounting base (22). Multiple probes (21) are mounted on the mounting base (22) along its length. The mounting base (22) is mounted on the needle bed body (3). The needle bed body (3) has a placement station. The probe assembly (2) is located on one side of the placement station. A calibration plate (1) is detachably mounted on the placement station. Multiple detection hole groups (11) are provided on the calibration plate (1). The detection holes (111) of the detection hole groups (11) are adapted to the shape of the probes (21). The detection hole groups (11) correspond to the preset positions of the probe assembly (2) to detect the actual installation position of the probes (21).

2. The probe bed for battery production according to claim 1, characterized in that, Along the length of the mounting base (22), a plurality of detection hole groups (11) are arranged in a row on the calibration plate (1), and the detection hole groups (11) are arranged in a row on at least the two sides of the calibration plate (1).

3. The probe bed for battery production according to claim 2, characterized in that, Along the length of the mounting base (22), a group of detection holes (11) is arranged in a row at least in the middle of the calibration plate (1).

4. The probe bed for battery production according to claim 3, characterized in that, A through hole (12) for the probe (21) to pass through is provided between the detection hole group (11) located in the middle of the calibration plate (1) and the detection hole group (11) located at the edge of the calibration plate (1).

5. The probe bed for battery production according to claim 4, characterized in that, There are multiple through holes (12), and the positions of the through holes (12) correspond to those of the probes (21).

6. The probe bed for battery production according to claim 3, characterized in that, The calibration plate (1) has two rows of detection holes (11) in the middle.

7. The probe bed for battery production according to claim 1, characterized in that, The calibration plate (1) is provided with a detection hole (111) for each of the probes (21).

8. The probe bed for battery production according to any one of claims 1-7, characterized in that, The probe bed for battery production also includes tooling supports (13), and a plurality of the tooling supports (13) are installed on the side of the calibration plate (1) away from the probe assembly (2).

9. The probe bed for battery production according to any one of claims 1-7, characterized in that, The probe bed for battery production also includes a suction nozzle assembly (4), which is located on the other side of the placement station. The calibration plate (1) has a recess (15) that is adapted to the suction nozzle assembly (4).

10. The probe bed for battery production according to claim 9, characterized in that, The recess (15) is connected to the detection hole group (11), and the detection hole group (11) is located in the area enclosed by the recess (15).

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