Flexible detection jig for identifying heights of positive electrode and negative electrode of battery cell

Abstract

The utility model discloses a flexible detection jig for identifying the heights of a positive electrode and a negative electrode of a battery cell, a battery comprises the positive electrode and the negative electrode of the battery cell, a height difference exists between the positive electrode and the negative electrode of the battery cell, and the flexible detection jig is used for identifying the height difference so as to confirm the positions of the positive electrode and the negative electrode of the battery cell; the detection flexible jig comprises a shell and a plurality of flexible telescopic columns arranged on the shell, the plurality of flexible telescopic columns form a detection surface, and when the detection surface formed by the plurality of flexible telescopic columns is in contact with the battery cell positive electrode and the battery cell negative electrode, the detection surface is in contact with the battery cell positive electrode and the battery cell negative electrode. And the plurality of flexible telescopic columns adaptively stretch and retract, are jacked up in the battery cell positive electrode and battery cell negative electrode areas, and respectively form a first measurement scale and a second measurement scale. According to the detection flexible jig provided by the utility model, the identification process of the positive electrode and the negative electrode of the battery cell is realized by observing the height difference of the jacked flexible telescopic columns contacted with the positive electrode and the negative electrode by utilizing the height difference of the positive electrode and the negative electrode of the battery cell, the design structure is simple, and the operation efficiency is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of battery assembly technology, specifically a flexible fixture for detecting the height of the positive and negative electrodes of a battery cell. Background Technology

[0002] In industrial production, the assembly process of battery cells requires two metal rivets to be riveted into the battery cell cap and separated from the metal shell by insulating plastic, so as to serve as the positive and negative electrodes of the battery cell respectively. For the subsequent formation process, it is necessary to identify the positive and negative electrodes of the battery cell. Therefore, a flexible inspection fixture for high-precision identification of the positive and negative electrodes of the battery cell is proposed. Utility Model Content

[0003] The purpose of this invention is to provide a flexible fixture for identifying the height of the positive and negative electrodes of a battery cell. This device utilizes the height difference between the positive and negative electrodes of the battery cell to identify the positive and negative electrodes by observing the height difference of several flexible telescopic columns that are in contact with the positive and negative electrodes. This design has a simple structure and significantly improves operational efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A flexible fixture for identifying the height of positive and negative electrodes of a battery cell, wherein the battery includes a positive electrode and a negative electrode, and there is a height difference between the positive and negative electrodes. The flexible fixture is used to identify the height difference to confirm the positions of the positive and negative electrodes. The flexible fixture includes:

[0006] The housing has several flexible telescopic columns on it, which together form a detection surface. When the detection surface formed by the flexible telescopic columns comes into contact with the positive and negative electrodes of the battery cell, the flexible telescopic columns adaptively extend and retract and are lifted up in the areas of the positive and negative electrodes of the battery cell, respectively forming a first measurement scale and a second measurement scale.

[0007] Preferably, the shell is integrally formed from a transparent material.

[0008] Preferably, the housing is provided with an mounting plate for assembling a plurality of flexible telescopic columns, wherein each flexible telescopic column includes a telescopic hole formed on the mounting plate, and a telescopic rod is provided in each telescopic hole; a telescopic column body is provided at the bottom end of the telescopic rod and fixed to the telescopic rod, and a spring is provided on the outer wall of the telescopic rod between the telescopic column body and the mounting plate for resetting the telescopic rod; it also includes contact terminals fixed at the bottom end of the telescopic column body, and when the plurality of contact terminals are in contact with the positive and negative electrodes of the battery cell, the plurality of telescopic rods extend and retract adaptively.

[0009] Preferably, a scale is fixed to the end of each telescopic rod away from the contact terminal.

[0010] Preferably, a marking plate is also horizontally fixed in the middle of the housing, and through holes are opened on the marking plate to facilitate the passage of several rulers.

[0011] Preferably, the upper part of the housing is further provided with a first display layer and a second display layer distributed vertically. When several scales are lifted in the positive and negative electrode areas of the battery cell, several scales with different degrees of lifting can be adapted to extend into the first display layer or the second display layer to achieve a direct identification effect between the first measurement scale and the second measurement scale.

[0012] Preferably, a vision sensor is also provided on the side wall of the housing.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] The flexible testing fixture of this utility model utilizes the height difference between the positive and negative electrodes of the battery cell to observe the height difference of several flexible telescopic columns that are in contact with the positive and negative electrodes. When the flexible testing fixture approaches the battery cell and makes the flexible telescopic columns contact the positive and negative electrode rivets of the battery cell, due to the different heights of the positive and negative electrodes, the pressure on the several flexible telescopic columns is different, and thus the height of the several flexible telescopic columns is different, thereby realizing the identification process of the positive and negative electrodes of the battery cell. This design has a simple structure and significantly improves the operating efficiency. Attached Figure Description

[0015] Figure 1 This is a partial first-view schematic diagram of the present invention;

[0016] Figure 2 This is a partial schematic diagram from a second perspective of the present invention;

[0017] Figure 3 This is a partial cross-sectional schematic diagram of a flexible fixture under testing conditions.

[0018] In the diagram: 211, housing; 212, mounting plate; 213, telescopic rod; 214, telescopic column; 215, contact terminal; 216, spring; 217, scale; 311, first display layer; 312, second display layer; 313, label plate. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0020] Please see Figures 1-3 This utility model preferably provides a flexible fixture for identifying the height of the positive and negative electrodes of a battery cell. The battery includes a positive electrode and a negative electrode, and there is a height difference between the positive and negative electrodes. The flexible fixture is used to identify this height difference to confirm the positions of the positive and negative electrodes. The flexible fixture includes:

[0021] The housing has several flexible telescopic columns on it, which together form a detection surface. When the detection surface formed by the flexible telescopic columns comes into contact with the positive and negative electrodes of the battery cell, the flexible telescopic columns adaptively extend and retract and are lifted up in the areas of the positive and negative electrodes of the battery cell, respectively forming a first measurement scale and a second measurement scale.

[0022] It should be noted that during the cell assembly, two metal rivets are riveted into the cell cap, which are separated from the metal shell by insulating plastic. These rivets can be used as the positive and negative electrodes of the cell, respectively, and there is a significant difference in the exposed height of the positive and negative electrodes.

[0023] Based on this height difference, this application designs a flexible fixture for identifying the positive and negative terminals of the battery cell; specifically combined with... Figure 1 , Figure 2 , Figure 3 As shown in the figure, the housing 211 containing the flexible fixture is equipped with several flexible telescopic columns. When the flexible fixture approaches the battery cell and makes the flexible telescopic columns contact the positive and negative rivets of the battery cell, combined with... Figure 3 Because the positive and negative poles are at different heights, the pressure on the flexible telescopic poles is different, and thus the flexible telescopic poles are lifted to different heights. For example, a higher positive pole rivet will cause the corresponding flexible telescopic poles to be lifted higher, while a lower negative pole rivet will cause the corresponding flexible telescopic poles to be lifted to a lower height. Therefore, by detecting the difference in the height of the flexible telescopic poles being lifted, that is, by judging the data of the first measurement scale and the second measurement scale, the positive and negative poles of the battery cell can be identified.

[0024] The flexible testing fixture in this device utilizes the height difference between the positive and negative terminals of the battery cell to observe the height difference of several flexible telescopic columns that are in contact with the positive and negative terminals, thereby realizing the identification process of the positive and negative terminals of the battery cell. This design has a simple structure and significantly improves operating efficiency.

[0025] Furthermore, the shell 211 is integrally molded from transparent material, which facilitates intuitive monitoring of the height of the several flexible telescopic columns.

[0026] Furthermore, the housing 211 is provided with a mounting plate 212 for assembling a plurality of flexible telescopic columns, wherein each flexible telescopic column includes a telescopic hole opened on the mounting plate 212, and a telescopic rod 213 is provided in each telescopic hole; a telescopic column body 214 is provided at the bottom end of the telescopic rod 213 and fixed to the telescopic rod 213, and a spring 216 is provided on the outer wall of the telescopic rod 213 between the telescopic column body 214 and the mounting plate 212 for resetting the telescopic rod 213; it also includes a contact terminal 215 fixed at the bottom end of the telescopic column body 214, and when the plurality of contact terminals 215 are in contact with the positive and negative poles of the battery cell, the plurality of telescopic rods 213 extend and retract adaptively.

[0027] Combination Figure 3 It is known that the mounting plate 212 is fixed to the lower part of the housing 211, and the telescopic rod 213 where each flexible telescopic column is located can move inside the telescopic hole on the mounting plate 212. At the same time, a spring 216 is connected between the telescopic column 214 fixed at the lower part of the telescopic rod 213 and the mounting plate 212. Therefore, when the contact terminal 215 fixed at the bottom of the telescopic column 214 contacts the positive or negative electrode of the battery cell and is adaptively lifted, the telescopic rod 213 is pushed to move upward adaptively. Since the height of the positive and negative electrodes lifting the flexible telescopic column is different, the degree of upward movement of several telescopic rods 213 is different. Here, the positive and negative electrodes of the battery cell can be identified by the degree of upward movement of the telescopic rod 213.

[0028] Furthermore, a scale 217 is fixed to the end of each telescopic rod 213 away from the contact terminal 215, in conjunction with... Figure 3 It features a standard-scale ruler 217, which can further refine and accurately identify the positive and negative terminals of the battery cell.

[0029] Furthermore, a marking plate 313 is horizontally fixed in the middle of the housing 211, and through holes are opened on the marking plate 313 to facilitate the passage of several scales 217.

[0030] Several scales 217 can pass through several through holes opened on the marking plate 313, so the marking plate 313 can be used as a marking device for the degree of the scales 217 being raised, thus facilitating the reading of the data of the scales 217.

[0031] Furthermore, the upper part of the housing 211 is also provided with a first display layer 311 and a second display layer 312 distributed vertically. When several scales 217 are lifted in the positive and negative electrode areas of the battery cell, several scales 217 with different degrees of lifting can be adapted to extend into the first display layer 311 or the second display layer 312 to achieve a direct identification effect between the first measurement scale and the second measurement scale.

[0032] Combination Figure 3As shown, due to the height difference between the positive and negative poles of the battery cell, the telescopic rods 213 are lifted to different degrees in the positive and negative pole areas of the battery cell. Therefore, the scales 217 in the positive and negative pole areas of the battery cell can be adapted to extend into the first display layer 311 or the second display layer 312. The first display layer 311 and the second display layer 312, which are distributed above and below, can provide a simple and intuitive display function for identifying the positive and negative poles of the battery cell.

[0033] Furthermore, a vision sensor is also provided on the side wall of the housing 211. This vision sensor can detect the height difference of several flexible telescopic columns being lifted, and the system can intelligently identify the positive and negative terminals of the cell, thereby providing the correct connection information for subsequent formation processes.

[0034] In addition to a microcontroller and an image storage module, the image storage module contains standard image data of the positive and negative poles corresponding to the lifting images of several flexible telescopic columns.

[0035] Here, visual sensors such as cameras and depth cameras capture images of several flexible telescopic columns being lifted up through optical elements. The original images are then processed by noise reduction, enhancement, and edge detection to improve the recognition of the target object. The sensors then transmit the image information to a microcontroller, which integrates the image information and compares it with standard image data to achieve the identification of positive and negative poles.

[0036] Meanwhile, the flexible fixture can be placed in the testing cabinet. The testing cabinet containing the flexible fixture can perform charging / discharging of the battery, thereby completing the testing of the battery performance.

[0037] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A flexible fixture for detecting the height of positive and negative electrodes of a battery cell, wherein, The battery includes a positive electrode and a negative electrode, and there is a height difference between the positive and negative electrodes. The flexible detection fixture is used to identify the height difference to confirm the positions of the positive and negative electrodes. The flexible detection fixture comprises: The housing has several flexible telescopic columns on it, which together form a detection surface. When the detection surface formed by the flexible telescopic columns comes into contact with the positive and negative electrodes of the battery cell, the flexible telescopic columns adaptively extend and retract and are lifted up in the areas of the positive and negative electrodes of the battery cell, respectively forming a first measurement scale and a second measurement scale.

2. The flexible fixture for identifying the positive and negative pole heights of a battery cell according to claim 1, characterized in that: The entire shell is made of a single piece of transparent material.

3. The flexible fixture for identifying the positive and negative pole heights of a battery cell according to claim 1, characterized in that: The housing is provided with an mounting plate for assembling a plurality of flexible telescopic columns, wherein each of the flexible telescopic columns includes a telescopic hole opened on the mounting plate, and a telescopic rod is provided in each telescopic hole; A telescopic column is provided at the bottom end of the telescopic rod and fixed to the telescopic rod, and a spring is provided on the outer wall of the telescopic rod between the telescopic column and the mounting plate for the telescopic rod to return to its original position; It also includes contact terminals fixed to the bottom of the telescopic column. When several contact terminals come into contact with the positive and negative poles of the battery cell, several telescopic rods extend and retract adaptively.

4. The flexible fixture for identifying the positive and negative pole heights of a battery cell according to claim 3, characterized in that: Each of the telescopic rods has a scale fixed to the end furthest from the contact terminal.

5. The flexible fixture for identifying the positive and negative pole heights of a battery cell according to claim 1, characterized in that: The housing is also laterally fixed with a marking plate and through holes on the marking plate to allow several rulers to pass through.

6. The flexible fixture for identifying the positive and negative pole heights of a battery cell according to claim 1, characterized in that: The upper part of the housing is also provided with a first display layer and a second display layer distributed on top and bottom. When several scales are lifted in the positive and negative electrode areas of the battery cell, several scales with different degrees of lifting can be adapted to extend into the first display layer or the second display layer to achieve a direct identification effect between the first measurement scale and the second measurement scale.

7. The flexible fixture for identifying the positive and negative pole heights of a battery cell according to claim 1, characterized in that: The sidewall of the housing is also equipped with a vision sensor.

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