Solid-state battery defect on-line detection device

Abstract

The application discloses a solid-state battery defect online detection device and relates to the field of solid-state battery detection. The worm, the worm wheel, the rotating rod, the transmission gear, the rotating cylinder, the connecting block, the fixing cylinder, the fixing pin, the mounting disc, the rotating plate and the torsional spring are arranged, the movement of the rotating plate is matched with the guidance of the fixed plate, four abutting blocks are driven to position four points on the outer surface of the solid-state battery, the solid-state battery is positioned at the center position on the substrate, different diameters of solid-state batteries can be conveniently adapted, center positioning can be conveniently and quickly performed, mispositioning is avoided, pressure defect detection errors are avoided, the rotating shaft, the rotating bevel gear, the transmission shaft, the transmission bevel gear, the threaded sleeve and the threaded rod are arranged, the rotating shaft is rotated, the three threaded sleeves are synchronously rotated through the cooperation of the rotating bevel gear, the transmission shaft and the transmission bevel gear, stable control of the descending of the pressing plate is realized, and errors in pressure detection caused by the inclination of the pressing plate are avoided.

Description

Technical Field

[0001] This utility model relates to the field of solid-state battery testing technology, and in particular to an online defect detection device for solid-state batteries. Background Technology

[0002] Solid-state battery pressure defect detection specifically refers to the identification and assessment of specific defects caused by uneven internal stress distribution or external mechanical pressure during battery manufacturing or charging and discharging, such as poor interface contact, electrolyte layer cracks, and electrode deformation. It focuses on pressure-related structural integrity, which is crucial for ensuring battery safety and cycle life.

[0003] When performing pressure testing on solid-state batteries, the solid-state battery is placed inside the monitoring device and then pressed and fixed by the top plate. The pressure on the solid-state battery is controlled by controlling the pressing force of the top plate. The charging and discharging efficiency of the battery is then monitored in real time, thereby detecting whether there are any defects inside the battery.

[0004] Existing solid-state battery pressure testing devices require different testing fixtures to be selected according to the specifications of the solid-state battery. A single testing device lacks the function of adjusting for batteries of different diameters, which makes it inconvenient to use. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the problems existing in the prior art, this utility model provides an online defect detection device for solid-state batteries.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: an online defect detection device for solid-state batteries, comprising:

[0009] substrate;

[0010] A positioning component is disposed inside a substrate. The positioning component includes a rotating cylinder movably mounted inside the substrate. Four connecting blocks are mounted on the inner side of the rotating cylinder. A fixed cylinder is mounted on the end of each connecting block away from the rotating cylinder. A fixing pin is mounted inside the fixed cylinder. Mounting plates are mounted on the top and bottom outer surfaces of the fixing pin. A rotating plate is mounted on the outer surface of the mounting plate. An abutment block is mounted on the end of the rotating plate away from the fixed cylinder. A fixed plate is disposed above the substrate. A torsion spring is disposed between the mounting plate and the fixed cylinder.

[0011] A locking assembly is disposed above a substrate. The locking assembly includes three threaded rods fixedly installed on the upper surface of the substrate. A top plate is disposed above the substrate. Three threaded sleeves are installed inside the top plate and are engaged with the threaded rods. A rotating shaft is movably installed inside the top plate. Rotating bevel gears are installed on the outer surfaces of the rotating shafts and the threaded sleeves. Three transmission shafts are movably installed inside the top plate, and transmission bevel gears are installed at both ends of the transmission shafts.

[0012] In a preferred embodiment of the solid-state battery defect online detection device of this utility model, the bottom outer surface of the rotating cylinder is provided with teeth, a rotating rod is movably installed inside the substrate, a transmission gear is installed on the outer surface of the rotating rod, the transmission gear is meshed with the rotating cylinder through the teeth, a worm wheel is installed on the outer surface of the rotating rod, a worm is installed inside the substrate, and the worm is meshed with the worm wheel.

[0013] In a preferred embodiment of the solid-state battery defect online detection device of the present invention, two fixing rings are installed on the upper surface of the substrate, and an annular opening that cooperates with the rotating cylinder is opened on the upper surface of the substrate. The top of the rotating cylinder passes through the annular opening and is inserted between the two fixing rings.

[0014] In a preferred embodiment of the online defect detection device for solid-state batteries described in this utility model, an arc-shaped opening is provided inside the inner fixing ring, the connecting block slides inside the arc-shaped opening, and the fixing plate is fixedly installed on the inner side of the inner fixing ring.

[0015] In a preferred embodiment of the online defect detection device for solid-state batteries described in this utility model, three limiting shafts are installed on the upper surface of the substrate, and through holes that cooperate with the limiting shafts are opened inside the top plate.

[0016] In a preferred embodiment of the solid-state battery defect online detection device of the present invention, a pressure block is installed on the lower surface of the top plate, a circular hole that mates with a threaded rod is opened on the outer surface of the top plate, an opening that mates with a rotating shaft is opened on the upper surface of the top plate, and a hexagonal block is installed through the opening at the top of the rotating shaft.

[0017] (III) Beneficial Effects

[0018] This invention provides an online defect detection device for solid-state batteries. It has the following advantages:

[0019] 1. By using a worm gear, worm wheel, rotating rod, transmission gear, rotating cylinder, connecting block, fixed cylinder, fixing pin, mounting plate, rotating plate, and torsion spring, the movement of the rotating plate, in conjunction with the guidance of the fixed plate, enables the four abutment blocks to perform four-point positioning on the outer surface of the solid-state battery. This positions the solid-state battery at the center of the substrate, facilitating the adaptation to solid-state batteries of different diameters and enabling convenient and quick center positioning, thus avoiding errors in pressure defect detection caused by misalignment.

[0020] 2. By setting up a rotating shaft, rotating bevel gear, transmission shaft, transmission bevel gear, threaded sleeve, and threaded rod, the rotating shaft can drive the three threaded sleeves to rotate synchronously through the cooperation of the rotating bevel gear, transmission shaft, and transmission bevel gear, thereby achieving smooth control of the pressure plate's descent and avoiding pressure detection errors caused by pressure plate skewing. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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 these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0023] Figure 2 This is an exploded structural diagram of the entire utility model.

[0024] Figure 3 This is an exploded structural diagram of the positioning component of this utility model.

[0025] Figure 4 This is an exploded structural diagram of the fixed cylinder of this utility model.

[0026] Figure 5 This is an exploded structural diagram of the locking component of this utility model.

[0027] Figure 6 This is an exploded structural diagram of the drive shaft of this utility model.

[0028] In the diagram, 1. Base plate; 2. Positioning assembly; 201. Rotating cylinder; 202. Worm gear; 203. Fixing plate; 204. Rotating plate; 205. Fixing ring; 206. Worm; 207. Rotating rod; 208. Transmission gear; 209. Abutment block; 210. Fixing pin; 211. Connecting block; 212. Fixing cylinder; 213. Mounting plate; 3. Locking assembly; 301. Top plate; 302. Threaded rod; 303. Limiting shaft; 304. Transmission shaft; 305. Transmission bevel gear; 306. Rotating bevel gear; 307. Rotating shaft; 308. Threaded sleeve. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0030] Example 1

[0031] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 This is the first embodiment of the present invention, which provides an online defect detection device for solid-state batteries, comprising:

[0032] substrate1;

[0033] Positioning component 2 is disposed inside the substrate 1. Positioning component 2 includes a rotating cylinder 201 movably installed inside the substrate 1. Four connecting blocks 211 are installed on the inner side of the rotating cylinder 201. A fixing cylinder 212 is installed at the end of the connecting block 211 away from the rotating cylinder 201. A fixing pin 210 is installed inside the fixing cylinder 212. Mounting plates 213 are installed on the top and bottom outer surfaces of the fixing pin 210. A rotating plate 204 is installed on the outer surface of the mounting plate 213. An abutment block 209 is installed at the end of the rotating plate 204 away from the fixing cylinder 212. A fixing plate 203 is disposed above the substrate 1. A torsion spring is disposed between the mounting plate 213 and the fixing cylinder 212. Limiting grooves for mounting the torsion spring are opened on the side of the mounting plate 213 near the fixing cylinder 212 and at both ends of the fixing cylinder 212. The torsion spring maintains the abutment state between the rotating plate 204 and the fixing plate 203.

[0034] like Figure 2 as well as Figure 3In this embodiment, the bottom outer surface of the rotating cylinder 201 is provided with teeth, the rotating rod 207 is movably installed inside the substrate 1, the outer surface of the rotating rod 207 is provided with a transmission gear 208, the transmission gear 208 is meshed with the rotating cylinder 201 through the teeth, the outer surface of the rotating rod 207 is provided with a worm gear 202, the inside of the substrate 1 is provided with a worm 206, the worm 206 is meshed with the worm gear 202, and one end of the worm 206 passes through the outer surface of the substrate 1 and is provided with an internal hexagon block.

[0035] like Figure 3 In this embodiment, two fixing rings 205 are installed on the upper surface of the substrate 1. An annular opening that cooperates with the rotating cylinder 201 is opened on the upper surface of the substrate 1. The top of the rotating cylinder 201 passes through the annular opening and is inserted between the two fixing rings 205.

[0036] like Figure 2 as well as Figure 3 In this embodiment, the inner fixing ring 205 has an arc-shaped opening inside, the connecting block 211 slides inside the arc-shaped opening, and the fixing plate 203 is fixedly installed on the inner side of the inner fixing ring 205.

[0037] Furthermore, through the cooperation of the worm gear 206 and the worm wheel 202, the rotating rod 207 is driven to rotate. The rotating rod 207 drives the rotating cylinder 201 to rotate through the transmission gear 208, causing the rotating cylinder 201 to move through the connecting block 211 and the fixed cylinder 212. During the movement of the fixed cylinder 212, the rotating plate 204 is moved through the fixing pin 210 and the mounting plate 213. The fixed cylinder 212 gradually approaches the fixed plate 203, thereby gradually increasing the angle between the rotating plate 204 and the fixed plate 203, thereby causing the abutment block 209 to abut against the outer surface of the solid-state battery. Through the four abutment blocks... The four-point positioning of 209 enables the solid-state battery to be positioned at the center of the substrate 1, which is convenient to adapt to solid-state batteries of different diameters and can be conveniently and quickly positioned to avoid errors in pressure defect detection caused by misalignment. The top plate 301 and the outer surface of the substrate 1 are electrically connected to detection devices through wires, thereby realizing real-time detection of the applied pressure and battery status. The substrate 1 is equipped with a monitoring module. The connection relationship, working principle and operation sequence between the detection device and the monitoring module and other components are existing technologies and are common knowledge known to those skilled in the art, and will not be elaborated here.

[0038] Example 2

[0039] Reference Figure 1 , Figure 2 , Figure 5 and Figure 6This is the second embodiment of the present invention, which is based on the previous embodiment. The locking component 3 is disposed above the substrate 1. The locking component 3 includes three threaded rods 302 fixedly installed on the upper surface of the substrate 1. A top plate 301 is disposed above the substrate 1. Three threaded sleeves 308 are installed inside the top plate 301. The threaded sleeves 308 are meshed with the threaded rods 302. A rotating shaft 307 is movably installed inside the top plate 301. Rotating bevel gears 306 are installed on the outer surfaces of the rotating shaft 307 and the threaded sleeves 308. Three transmission shafts 304 are movably installed inside the top plate 301. Transmission bevel gears 305 are installed at both ends of the transmission shafts 304.

[0040] like Figure 5 In this embodiment, three limiting shafts 303 are installed on the upper surface of the substrate 1, and the top plate 301 has through holes that cooperate with the limiting shafts 303. The top height of the limiting shafts 303 is higher than the top height of the threaded rod 302.

[0041] like Figure 5 as well as Figure 6 In this embodiment, a pressure block is installed on the lower surface of the top plate 301, a round hole is opened on the outer surface of the top plate 301 to cooperate with the threaded rod 302, an opening is opened on the upper surface of the top plate 301 to cooperate with the rotating shaft 307, and a hexagonal block is installed through the opening at the top of the rotating shaft 307.

[0042] Furthermore, the rotation of the rotating shaft 307 drives the rotating bevel gear 306 on the outer surface of the rotating shaft 307 to rotate, which in turn drives the transmission bevel gear 305 on the end of the transmission shaft 304 near the rotating shaft 307 to rotate, thereby driving the transmission shaft 304 to rotate. The transmission shaft 304 drives the threaded sleeve 308 to rotate through the cooperation of the transmission bevel gear 305 on the end near the threaded sleeve 308 and the rotating bevel gear 306 on the outer surface of the threaded sleeve 308. This drives the threaded sleeve 308 to rotate, thereby driving the top plate 301 to descend on the outer surface of the threaded rod 302. The solid-state battery is then squeezed by the pressure block on the lower surface of the top plate 301, thereby achieving the clamping for pressure detection of the solid-state battery.

[0043] Working principle: During solid-state battery pressure defect detection, the solid-state battery is placed on the upper surface of substrate 1. Then, the internal hexagon block at one end of the worm gear 206 is rotated using an internal hex wrench. This, in turn, causes the rotating rod 207 to rotate through the engagement of the worm gear 206 and worm wheel 202. The rotating rod 207, via the transmission gear 208, drives the rotating cylinder 201 to rotate. This causes the rotating cylinder 201 to move the fixed cylinder 212 via the connecting block 211. During the movement of the fixed cylinder 212, the rotating plate 212 is moved via the fixing pin 210 and the mounting plate 213. 04. The fixed cylinder 212 moves closer to the fixed plate 203, thereby gradually increasing the angle between the rotating plate 204 and the fixed plate 203. This causes the abutment block 209 to abut against the outer surface of the solid-state battery. Through the four-point positioning of the four abutment blocks 209, the solid-state battery is positioned at the center of the substrate 1, which is convenient for adapting to solid-state batteries of different diameters and allows for convenient and quick center positioning, avoiding errors in pressure defect detection caused by misalignment. After the solid-state battery is installed, the top plate 301 is inserted into the limiting shaft 303. Since the top of the limiting shaft 303 is higher than the top of the threaded rod 302, the top plate 301 is initially limited before the threaded sleeve 308 engages with the threaded rod 302, ensuring that the top plate 301 descends vertically. Then, the top of the threaded rod 302 is driven to enter the top plate 301 through the round hole on the outer surface of the top plate 301, thus engaging with the threaded sleeve 308. Then, the hexagonal block is rotated, which drives the rotating shaft 307 to rotate, thereby driving the rotating bevel gear 306 on the outer surface of the rotating shaft 307 to rotate, which in turn drives the transmission shaft 304 to approach the rotating shaft 304. The transmission bevel gear 305 at one end of shaft 307 rotates, thereby driving the transmission shaft 304 to rotate. The transmission shaft 304 drives the threaded sleeve 308 to rotate through the cooperation of the transmission bevel gear 305 near the threaded sleeve 308 and the rotating bevel gear 306 on the outer surface of the threaded sleeve 308. This causes the top plate 301 to descend on the outer surface of the threaded rod 302, thereby squeezing the solid-state battery through the pressure block on the lower surface of the top plate 301, thus achieving the clamping for pressure detection of the solid-state battery and finally completing the pressure defect detection of the solid-state battery.

[0044] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. An online defect detection device for solid-state batteries, characterized in that, include: base(1); Positioning component (2), which is disposed inside the substrate (1), includes a rotating cylinder (201) movably installed inside the substrate (1), four connecting blocks (211) are installed on the inner side of the rotating cylinder (201), a fixing cylinder (212) is installed at the end of the connecting block (211) away from the rotating cylinder (201), a fixing pin (210) is installed inside the fixing cylinder (212), a mounting plate (213) is installed on the top and bottom outer surfaces of the fixing pin (210), a rotating plate (204) is installed on the outer surface of the mounting plate (213), an abutment block (209) is installed at the end of the rotating plate (204) away from the fixing cylinder (212), a fixing plate (203) is disposed above the substrate (1), and a torsion spring is disposed between the mounting plate (213) and the fixing cylinder (212); A locking assembly (3) is disposed above the substrate (1). The locking assembly (3) includes three threaded rods (302) fixedly installed on the upper surface of the substrate (1). A top plate (301) is disposed above the substrate (1). Three threaded sleeves (308) are installed inside the top plate (301). The threaded sleeves (308) are meshed with the threaded rods (302). A rotating shaft (307) is movably installed inside the top plate (301). Rotating bevel gears (306) are installed on the outer surfaces of the rotating shafts (307) and the threaded sleeves (308). Three transmission shafts (304) are movably installed inside the top plate (301). Transmission bevel gears (305) are installed at both ends of the transmission shafts (304).

2. The online defect detection device for solid-state batteries according to claim 1, characterized in that: The bottom outer surface of the rotating cylinder (201) is provided with teeth. A rotating rod (207) is movably installed inside the base plate (1). A transmission gear (208) is installed on the outer surface of the rotating rod (207). The transmission gear (208) is meshed with the rotating cylinder (201) through teeth. A worm wheel (202) is installed on the outer surface of the rotating rod (207). A worm (206) is installed inside the base plate (1). The worm (206) is meshed with the worm wheel (202).

3. The online defect detection device for solid-state batteries according to claim 2, characterized in that: Two fixing rings (205) are installed on the upper surface of the substrate (1). An annular opening that cooperates with the rotating cylinder (201) is opened on the upper surface of the substrate (1). The top of the rotating cylinder (201) passes through the annular opening and is inserted between the two fixing rings (205).

4. The online defect detection device for solid-state batteries according to claim 3, characterized in that: The inner fixing ring (205) has an arc-shaped opening inside, the connecting block (211) slides inside the arc-shaped opening, and the fixing plate (203) is fixedly installed on the inner side of the inner fixing ring (205).

5. The online defect detection device for solid-state batteries according to claim 1, characterized in that: The upper surface of the substrate (1) is equipped with three limiting shafts (303), and the top plate (301) has through holes that cooperate with the limiting shafts (303).

6. The online defect detection device for solid-state batteries according to claim 5, characterized in that: A pressure block is installed on the lower surface of the top plate (301), and a round hole that mates with the threaded rod (302) is opened on the outer surface of the top plate (301). An opening that mates with the rotating shaft (307) is opened on the upper surface of the top plate (301), and a hexagonal block is installed through the opening on the top of the rotating shaft (307).

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