Automatic measuring device for voltage and internal resistance of cylindrical cell

Abstract

The utility model relates to an automatic measuring device for voltage and internal resistance of a cylindrical cell, which is applied to the field of battery measuring devices and comprises an equipment body, a feeding slope channel is fixedly connected to the right end of the equipment body, and a measuring workpiece storage device is fixedly connected to the lower end of the feeding slope channel. A discharging slope channel is arranged under the measuring workpiece storage device, the output end of the discharging slope channel is connected with a storage frame, linkage springs are symmetrically and fixedly connected to the front end and the rear end of the lower end of the storage frame, motors are fixedly connected to the upper ends of the linkage springs, and the output ends of the two motors are fixedly connected with a receiving buffer roll shaft. According to the automatic measuring device for the voltage and the internal resistance of the cylindrical battery cell, the two flexible clamping plates above the material receiving buffering roller shaft are used for preliminary buffering, and the anti-smashing double-layer laminated surface is prolonged for separation; and the risk that the cylindrical battery workpiece bodies collide with one another in the material storage frame during blanking after the detection of the cylindrical battery workpiece bodies is completed can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to an automatic measuring device for the voltage and internal resistance of cylindrical battery cells, in particular to an automatic measuring device for the voltage and internal resistance of cylindrical battery cells applied to the field of battery measuring devices. Background Technique

[0002] An automatic measuring device for the voltage and internal resistance of cylindrical battery cells is an automated device specifically used for quickly and accurately measuring the voltage and internal resistance of cylindrical battery cells. It can precisely measure the voltage at both ends of the cylindrical battery cell to determine the voltage level during the charging state or working state of the battery cell. This is very important for evaluating the performance and health status of the battery cell.

[0003] The specification of Chinese Patent CN202316336U discloses a full-automatic sorting device for battery internal resistance, including: hopper A, full-automatic internal resistance measuring instrument B, rotating numerical control working disk C, discharge port D, storage box E, storage box F, storage box G; this device can perform full-automatic sorting of batteries according to different internal resistance values.

[0004] When the battery workpiece is discharged after being measured by the automatic measuring device for the voltage and internal resistance of cylindrical battery cells, the height difference in the storage frame poses a risk of mutual collision and impact of the batteries during the material workpiece. The collision may cause minor changes in the internal structure of the battery workpiece, such as loosening of the electrode material and displacement of the diaphragm, etc., resulting in a decrease in its ability to store electrical energy. Therefore, it is necessary to design an automatic measuring device for the voltage and internal resistance of cylindrical battery cells with a discharging buffer effect to solve the above problems. Content of the Utility Model

[0005] Aiming at the above-mentioned prior art, the technical problem to be solved by the present utility model is that when the battery workpiece is discharged after being measured by the automatic measuring device for the voltage and internal resistance of cylindrical battery cells, the height difference in the storage frame poses a risk of mutual collision and impact of the batteries during the material workpiece.

[0006] To solve the above problems, the present utility model provides an automatic measuring device for the voltage and internal resistance of cylindrical battery cells, including a device body. A feeding inclined plane channel is fixedly connected to the right end of the device body. A measuring workpiece storage is fixedly connected to the lower end of the feeding inclined plane channel. A discharging inclined plane channel is arranged directly below the measuring workpiece storage. The output end of the discharging inclined plane channel is connected to a storage frame. Linkage springs are symmetrically and fixedly connected to the front and rear ends of the lower end of the storage frame. A motor is fixedly connected to the upper end of the linkage spring. The output ends of the two motors are fixedly connected to a receiving buffer roller shaft. A plurality of flexible clamping plates are fixedly connected to the outer end of the receiving buffer roller shaft.

[0007] In the above-mentioned automatic measuring device for the voltage and internal resistance of cylindrical battery cells, in this solution, the clamping space between two flexible clamping plates above the material receiving buffer roller shaft is used for preliminary buffering. Then, by extending the anti-smashing double-layer surface, the cylindrical battery workpiece bodies between the upper and lower layers can be separated through the extended anti-smashing double-layer surface, which can effectively reduce the risk of collision between the cylindrical battery workpiece bodies in the storage frame during the blanking process after the detection of the cylindrical battery workpiece bodies, and ensure the integrity of the cylindrical battery workpiece bodies.

[0008] As a further improvement of this application, the multiple flexible clamping plates are arranged at equal intervals in a ring shape, and an L-shaped connecting plate is fixedly connected to the left end of the measuring workpiece storage.

[0009] As a further improvement of this application, an electric push rod is fixedly connected to one end of the vertical surface of the L-shaped connecting plate close to the measuring workpiece storage.

[0010] As a further improvement of this application, a contact is fixedly connected to the output end of the electric push rod, and a probe is installed at the right end of the measuring workpiece storage, and the contact and the probe cooperate with each other.

[0011] As another improvement of this application, an extended anti-smashing double-layer surface is fixedly connected to one end of the flexible clamping plate far from the material receiving buffer roller shaft, and rubber side rods are symmetrically and fixedly connected to the left and right ends of the extended anti-smashing double-layer surface.

[0012] As a supplementary improvement of this application, a plurality of buffer balls are fixedly connected to the inner layer of the extended anti-smashing double-layer surface, and the plurality of buffer balls are evenly distributed.

[0013] As a supplementary improvement of this application, a flexible inner pad is fixedly connected to the lower inner wall of the discharge inclined plane channel, and a cylindrical battery workpiece body is arranged at the upper end of the flexible inner pad.

[0014] In summary, in this solution, when the cylindrical battery workpiece body falls into the storage frame, it can first fall into the clamping space between two flexible clamping plates above the material receiving buffer roller shaft for preliminary buffering. Then, the cylindrical battery workpiece body rolls to the extended anti-smashing double-layer surface, expanding and extending the buffering path of the material receiving buffer roller shaft. The extended anti-smashing double-layer surface can separate the cylindrical battery workpiece bodies between the upper and lower layers through the extended anti-smashing double-layer surface, reducing the falling impact force and the risk of collision, effectively reducing the risk of collision between the cylindrical battery workpiece bodies in the storage frame during the blanking process after the detection of the cylindrical battery workpiece bodies, ensuring the integrity of the cylindrical battery workpiece bodies. At the same time, the rubber side rods arranged on both sides of the extended anti-smashing double-layer surface can make the buffering surface of the extended anti-smashing double-layer surface more flat. At the same time, the plurality of buffer balls arranged in the inner layer of the extended anti-smashing double-layer surface can utilize the buffering characteristics of the buffer balls to absorb the impact force of the rolling of the cylindrical battery workpiece body during the fall, reducing the risk of collision damage between the upper and lower cylindrical battery workpiece bodies. Brief Description of the Drawings

[0015] Figure 1 Isometric view of the device body of the first embodiment of the present application;

[0016] Figure 2 Measurement state diagram of the cylindrical battery workpiece body of the first and second embodiments of the present application;

[0017] Figure 3 Front elevation sectional view of the storage frame of the first embodiment of the present application;

[0018] Figure 4 State diagram of filling the cylindrical battery workpiece body of the first embodiment of the present application into the storage frame;

[0019] Figure 5 Enlarged view of the feeding buffer roller shaft of the first embodiment of the present application;

[0020] Figure 6 Isometric view of the extended anti-smashing double-layer overlapping surface of the first embodiment of the present application;

[0021] Figure 7 Of the second embodiment of the present application Figure 6 Enlarged view of a partially truncated part of the extended anti-smashing double-layer overlapping surface.

[0022] Explanation of the reference numerals in the figures:

[0023] 1. Device body; 2. Inlet inclined plane channel; 3. Measuring workpiece storage; 4. Probe; 5. L-shaped connecting plate; 6. Electric push rod; 7. Contact; 8. Outlet inclined plane channel; 9. Cylindrical battery workpiece body; 10. Storage frame; 11. Linkage spring; 12. Motor; 13. Feeding buffer roller shaft; 14. Flexible clamping plate; 15. Extended anti-smashing double-layer overlapping surface; 16. Rubber side rod; 17. Buffer ball; 18. Flexible inner pad. Detailed Description of the Embodiments

[0024] The following provides a detailed description of the two embodiments of the present application with reference to the accompanying drawings.

[0025] First Embodiment:

[0026] Figures 1-6Disclosed is an automatic measuring device for the voltage and internal resistance of cylindrical battery cells, which comprises a device body 1. A feeding inclined plane channel 2 is fixedly connected to the right end of the device body 1. A measuring workpiece storage 3 is fixedly connected to the lower end of the feeding inclined plane channel 2. A discharging inclined plane channel 8 is arranged directly below the measuring workpiece storage 3. The output end of the discharging inclined plane channel 8 is connected to a storage frame 10. Linkage springs 11 are symmetrically and fixedly connected to the front and rear ends of the lower end of the storage frame 10. A motor 12 is fixedly connected to the upper end of the linkage spring 11. The output ends of two motors 12 are fixedly connected to a material receiving buffer roller shaft 13. A plurality of flexible clamping plates 14 are fixedly connected to the outer end of the material receiving buffer roller shaft 13.

[0027] Figures 1-6 It is shown that the plurality of flexible clamping plates 14 are arranged at equal intervals in a ring shape. An L-shaped connecting plate 5 is fixedly connected to the left end of the measuring workpiece storage 3. An electric push rod 6 is fixedly connected to one end of the vertical surface of the L-shaped connecting plate 5 close to the measuring workpiece storage 3. A contact 7 is fixedly connected to the output end of the electric push rod 6. A probe 4 is installed at the right end of the measuring workpiece storage 3. The contact 7 and the probe 4 cooperate with each other. An extended anti-smashing double-layer surface 15 is fixedly connected to one end of the flexible clamping plate 14 far away from the material receiving buffer roller shaft 13. Rubber side rods 16 are symmetrically and fixedly connected to the left and right ends of the extended anti-smashing double-layer surface 15.

[0028] Figures 1-6It shows that multiple cylindrical battery workpiece bodies 9 in this solution are placed into the feeding inclined plane channel 2 and roll into the measuring workpiece storage 3 in sequence. The cylindrical battery workpiece bodies 9 in the measuring workpiece storage 3 can be pushed by the electric push rod 6 to ensure that the positive and negative electrodes of the cylindrical battery workpiece bodies 9 are in correct contact with the contacts 7 and the probes 4. The internal resistance, voltage and other values of the cylindrical battery workpiece bodies 9 in the measuring workpiece storage 3 are calculated. After the detection, the cylindrical battery workpiece bodies 9 fall above the discharging inclined plane channel 8 and slide into the storage frame 10 for storage for subsequent overall transportation. When the cylindrical battery workpiece bodies 9 fall into the storage frame 10, they can first fall into the clamping space between two flexible clamping plates 14 above the receiving buffer roller shaft 13. The linkage spring 11 changes its height along with the falling path of the cylindrical battery workpiece bodies 9 below the receiving buffer roller shaft 13, so that when the cylindrical battery workpiece bodies 9 fall into the storage frame 10, they are initially buffered by the receiving buffer roller shaft 13. Then, when multiple cylindrical battery workpiece bodies 9 are stored in the storage frame 10 in sequence, the cylindrical battery workpiece bodies 9 can roll to the extended anti-drop double-layer surface 15, so that the buffer path of the receiving buffer roller shaft 13 is extended. The extended anti-drop double-layer surface 15 can separate the upper and lower layers of cylindrical battery workpiece bodies 9 through the extended anti-drop double-layer surface 15, reduce the falling impact force, and reduce the risk of collision between the cylindrical battery workpiece bodies 9. It can effectively reduce the risk of collision between the cylindrical battery workpiece bodies 9 when they are discharged after the detection of the cylindrical battery workpiece bodies 9 in the storage frame 10, ensure the integrity of the cylindrical battery workpiece bodies 9. At the same time, the rubber side rods 16 arranged on both sides of the extended anti-drop double-layer surface 15 can make the buffer surface of the extended anti-drop double-layer surface 15 smoother, ensure the buffer surface range provided for the cylindrical battery workpiece bodies 9, and it is not easy to generate risks such as skew and overlap.

[0029] The second implementation mode:

[0030] Figure 2 , Figure 7 It shows an automatic measuring device for the voltage and internal resistance of cylindrical battery cores. A plurality of buffer balls 17 are fixedly connected to the inner layer of the extended anti-drop double-layer surface 15, and the plurality of buffer balls 17 are evenly distributed. The lower inner wall of the discharging inclined plane channel 8 is fixedly connected with a flexible inner pad 18, and the upper end of the flexible inner pad 18 is provided with a cylindrical battery workpiece body 9. At the same time, the plurality of buffer balls 17 arranged in the inner layer of the extended anti-drop double-layer surface 15 can utilize the buffering characteristics of the buffer balls 17 to absorb the impact force of the falling and rolling of the cylindrical battery workpiece bodies 9, reduce the risk of collision damage between the upper and lower cylindrical battery workpiece bodies 9. At the same time, a flexible inner pad 18 is arranged on the lower inner wall of the discharging inclined plane channel 8, and the flexible inner pad 18 can provide a buffering force even when the cylindrical battery workpiece bodies 9 are intermittently discharged from the measuring workpiece storage 3, further ensuring the smoothness of the cylindrical battery workpiece bodies 9 when they are discharged.

[0031] Combined with the current actual requirements, the above-mentioned implementation manner adopted in this application, the protection scope is not limited thereto. Within the scope of knowledge possessed by those skilled in the art, various changes made without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. An automatic measuring device for the voltage and internal resistance of a cylindrical battery cell, characterized in that: It includes a device body (1), a feeding inclined channel (2) is fixedly connected to the right end of the device body (1), a measuring workpiece storage (3) is fixedly connected to the lower end of the feeding inclined channel (2), a discharging inclined channel (8) is arranged directly below the measuring workpiece storage (3), the output end of the discharging inclined channel (8) is connected to a storage frame (10), linkage springs (11) are symmetrically and fixedly connected to the front and rear ends of the lower end of the storage frame (10), a motor (12) is fixedly connected to the upper end of the linkage spring (11), a material receiving buffer roller shaft (13) is fixedly connected to the output ends of the two motors (12), and a plurality of flexible clamping plates (14) are fixedly connected to the outer end of the material receiving buffer roller shaft (13).

2. The automatic measuring device for the voltage and internal resistance of a cylindrical battery cell according to claim 1, wherein: The plurality of flexible clamping plates (14) are arranged in an annular and equidistant manner, and an L-shaped connecting plate (5) is fixedly connected to the left end of the measuring workpiece storage (3).

3. The automatic measuring device for the voltage and internal resistance of a cylindrical battery cell according to claim 2, wherein: An electric push rod (6) is fixedly connected to one end of the vertical surface of the L-shaped connecting plate (5) close to the measuring workpiece storage (3).

4. The automatic measuring device for the voltage and internal resistance of a cylindrical battery cell according to claim 3, characterized in that: A contact point (7) is fixedly connected to the output end of the electric push rod (6), a probe (4) is installed at the right end of the measuring workpiece storage (3), and the contact point (7) and the probe (4) cooperate with each other.

5. The automatic measuring device for the voltage and internal resistance of a cylindrical battery cell according to claim 1, wherein: One end of the flexible clamping plate (14) far from the material receiving buffer roller shaft (13) is fixedly connected to an extended anti-smashing double-layer surface (15), and rubber side rods (16) are symmetrically and fixedly connected to the left and right ends of the extended anti-smashing double-layer surface (15).

6. The automatic measuring device for the voltage and internal resistance of a cylindrical battery cell according to claim 5, characterized in that: A plurality of buffer balls (17) are fixedly connected to the inner layer of the extended anti-smashing double-layer surface (15), and the plurality of buffer balls (17) are evenly distributed.

7. The automatic measuring device for the voltage and internal resistance of a cylindrical battery cell according to claim 1, wherein: A flexible inner pad (18) is fixedly connected to the lower inner wall of the discharging inclined channel (8), and a cylindrical battery workpiece body (9) is arranged at the upper end of the flexible inner pad (18).

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