Battery follow-up device mechanism

Abstract

An adaptive battery servo device mechanism, comprising a needle plate installation base assembly and a needle plate assembly; the needle plate installation base assembly contains two horizontal and mutually parallel needle plate slide rail fixed plates, the upper end of the needle plate slide rail fixed plate is provided with left and right needle plate movement slide rails, a needle plate blocking block is slidably arranged on the two needle plate movement slide rails, the right side of the needle plate blocking block is provided with a pull-out needle plate slide rail; the pull-out needle plate slide rail is connected with a needle plate moving slider which can slide forward and backward, the right bottom of the needle plate moving slider is provided with a probe slide rail in the front and back direction, a plurality of probe components are arranged on the probe slide rail; the front end of the frontmost probe component is provided with a reset air cylinder which can slide forward and backward along the probe slide rail; a front short and back long equal division rod assembly is arranged on the probe component, and the auxiliary probe is aligned with the battery pole. The design solves the interference of the battery charging and discharging caused by the thickness error and the battery expansion during the battery charging and discharging process, and improves the guidance compatibility.

Description

Technical Field

[0001] This invention relates to the field of battery manufacturing, and in particular to a battery servo mechanism adapted to battery charging and discharging. Background Technology

[0002] During the production of lithium batteries, the batteries need to be continuously charged and discharged to test and adjust their performance. This process is also known as the charge and discharge capacity testing of lithium batteries.

[0003] For stable and reliable charging and discharging of lithium batteries, it is crucial to ensure the stability of the contact between the battery terminals and the probe. Specifically, the vertical projections of the probe and the lithium battery terminals must coincide. If the probe and the lithium battery terminals are misaligned, the probe will fail to effectively contact the battery terminals, affecting the charging and discharging process.

[0004] Theoretically, when the probe queue and the lithium battery queue are aligned, the lithium battery and its corresponding probe should be aligned. However, in actual production, there are errors in the thickness of the lithium battery and the size of the separator. Furthermore, the thickness error is caused by the expansion of the lithium battery due to internal chemical reactions during charging and discharging. In particular, these errors accumulate in the lithium battery queue, causing the deviation between the lithium battery and its corresponding probe that is far from the contact point to reach a level that is sufficient to affect the effective charging and discharging of the lithium battery.

[0005] Different battery manufacturers have different design and definition thicknesses and dimensions. Existing equipment is a fixed structure, and equipment must be redesigned and manufactured for different thicknesses, making it impossible to flexibly accommodate batteries of other thicknesses.

[0006] The Chinese patent specification with publication number CN 219371107 U reduces the coverage area of ​​the lithium battery queue and probe assembly from the entire queue to the length of a probe assembly by means of evenly dividing the positioning, thereby reducing the accumulation of battery swelling and thickness error. However, battery swelling and thickness error still accumulate within the range of the probe assembly. When the swelling and thickness error between individual batteries is large, the alignment effect between the probe and the electrode tab of the lithium battery still needs to be improved. Summary of the Invention

[0007] The present invention aims to overcome the above-mentioned problems of the prior art and proposes a battery follow-up device mechanism.

[0008] The concept of this invention is to enable each probe of the probe assembly to move in real time with the corresponding battery when the battery bulges or thickness errors occur, ensuring that the probe is aligned with the battery terminal.

[0009] A battery-adaptive follower mechanism includes a needle plate mounting base assembly 1 and a needle plate assembly 2; the needle plate mounting base assembly 1 includes a needle plate mounting base 14, and the needle plate assembly 2 is detachably coupled to the needle plate mounting base 14. One side of the needle plate assembly 2 forms a longitudinal working surface that interacts with a battery tray 3; the end of the longitudinal working surface near the lead screw 306 mounted on the battery tray 3 is defined as the forward direction; the side of the needle plate assembly 2 facing the longitudinal working surface is defined as the outward direction, and the opposite side is defined as the inward direction.

[0010] The bottom of the needle plate mounting base 14 is slidably mounted on the horizontally arranged needle plate movement slide rail 13 so that the longitudinal working surface of the needle plate assembly 2 approaches or moves away from the battery tray 3.

[0011] The needle plate assembly 2 has a longitudinal probe slide rail 212 on its longitudinal working surface, and the probe component 200 is slidably mounted on the probe slide rail 212. The front part of the probe slide rail 212 is provided with a probe component initial position holding device 213 and a guide block 201. The guide block 201 has an inclined surface that engages with the locking head of the tray liner 302 at the front end of the battery tray 3. A tension spring 203 is connected between adjacent probe components 200, and the frontmost probe component 200 is connected to the guide block 201 by the tension spring 203.

[0012] The probe component 200 includes a probe slider 2006, which is slidably mounted on the probe slide rail 212. The probe slider 2006 is provided with a dividing rod assembly 2003 that cooperates with the clamp of the tray liner 302 and a probe 2001 for aligning the battery terminals. Both the dividing rod assembly 2003 and the probe 2001 are arranged outward.

[0013] The probe component initial position holding device 213 includes an initial positioning plate 2130 slidably mounted on the probe slide rail 212 and an initial position cylinder 2134 fixed to the frame of the needle plate assembly 2. The cylinder extension shaft 2132 of the initial position cylinder 2134 passes through the shaft hole of the cylinder lifting seat 2133 on the initial position cylinder 2134. The end of the cylinder extension shaft 2132 is provided with a shoulder to prevent the cylinder extension shaft 2132 from being pulled away from the cylinder lifting seat 2133. The initial positioning plate 2130 is connected to the guide block 201. In the initial position, the initial position cylinder 2134 pulls the initial positioning plate 2130, so that the probe component 200 is held in position. After the initial position cylinder 2134 is activated, the cylinder extension shaft 2132 is extended, the initial positioning plate 2130 and the guide block 201 are released, and the probe component 200 is pulled back to its original position by the tension spring 203.

[0014] Preferably, the needle plate assembly 2 is detachably combined with the needle plate mounting base 14, specifically including: the needle plate mounting base 14 is provided with a longitudinal pull-out needle plate slide rail 15, and the needle plate assembly 2 is slidably mounted on the pull-out needle plate slide rail 15.

[0015] Preferably, a displacement sensor 2004 is provided on the top surface of the probe slider 2006. When the battery expands, it is reflected on the probe component 200. The movement of the probe component 200 will cause the displacement sensor 2004 to move. The detection result is fed back to the external host computer. If the battery expansion value exceeds the maximum displacement threshold, the system will sound an alarm.

[0016] Preferably, the probe slider 2006 is provided with an outward-facing temperature probe 2002, which senses the temperature of the battery and uploads it to an external host computer.

[0017] More specifically, to avoid a large deviation between the front-end equalizing rod assembly and the clamp of the battery tray 3, the equalizing rod assemblies of several probe components at the rear end are slightly longer than those of the other probe components. This allows the rear-end equalizing rod assembly to initially align with the battery terminal and then push the front equalizing rod assembly forward, ensuring guiding compatibility.

[0018] More specifically, the lower end of the needle plate mounting base 14 is provided with a cylinder fixing plate 12, which is connected to an external cylinder that pushes laterally.

[0019] More specifically, the equalizing rod assembly 2003 includes an equalizing rod fixing seat 20033; the equalizing rod fixing seat 20033 is connected to the probe component 200, and an equalizing rod baffle 20034 is provided on the left side of the equalizing rod fixing seat 20033. The outer side is connected to the positioning block 20031 through the equalizing rod 20030. The positioning block 20031 has a V-shaped jaw that can be used with the clamping head of the battery tray 3. An equalizing rod spring 20032 is sleeved on the equalizing rod 20030.

[0020] More specifically, the probe component 200 docks with the external battery tray 3, which includes a rectangular tray base frame 303. The tray base frame 303 has a vertical front fixing plate 300 at one end and a vertical rear fixing plate 307 at the other end. The front fixing plate 300 and the rear fixing plate 307 are parallel and connected by a longitudinal inner liner guide shaft 308. Several tray inner liner plates 302 are longitudinally slidably mounted on the inner liner guide shaft 308 via slots 309. Adjacent... The tray inner lining plates 302 have a work station for clamping the battery; the tray inner lining plate 302 closest to the rear fixing plate is provided with a push plate 304, and the rear fixing plate 307 is provided with a trapezoidal nut 305 and a restraint hole 310; a longitudinal lead screw 306 passes through the trapezoidal nut 305 and contacts the push plate 304; the top of the slot 309 is provided with a tray clamp 311 that can be laterally connected to the equalizing rod assembly 2003, and the battery is provided with battery terminals 301 at both ends in the lateral direction.

[0021] The working steps of this invention include:

[0022] 1. An external cylinder pushes the needle plate mounting base assembly 1 and the needle plate assembly 2 to move laterally through the cylinder fixing plate, so that the longitudinal working surface of the needle plate assembly 2 approaches the battery tray 3.

[0023] 2. Align the guide block 201 with the foremost tray clamp 311 of the battery tray 3, and align the evenly distributed rod assembly 2003 on the probe component with the remaining tray clamps 311 of the battery tray 3. At this time, the probe component 200 slides forward along the probe slide rail 212, the tension spring 203 is stretched, and a backward pulling force is applied to the guide block 201 and the probe component 200; the initial position cylinder 2134 pulls the guide block 201 through the cylinder extension shaft 2132 and the initial positioning plate 2130, so that the alignment of the guide block and the probe component remains in the initial position.

[0024] 3. The probe on the probe component presses against the battery terminal, completing the one-to-one follow-up positioning between the probe and the battery; after positioning is completed, the battery is charged and discharged.

[0025] 4. Once charging and discharging are complete, the initial position cylinder is activated, the extension cylinder extends the shaft, and the initial positioning plate and guide block are released.

[0026] The probe component is pulled back to its original position by the tension spring.

[0027] The advantages of this invention are: it solves the interference caused by thickness errors and battery expansion during battery charging and discharging, and improves guiding compatibility. It has a simple structure, is easy to disassemble and replace, and allows for convenient probe reset after charging and discharging. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of a battery servo mechanism.

[0029] Figure 2 This is a detailed structural diagram illustrating a battery servo mechanism.

[0030] Figure 3 A schematic diagram of the structure of the base assembly for mounting the needle plate.

[0031] Figure 4 This is a schematic diagram of the probe component.

[0032] Figure 5 This is a schematic diagram of the reset cylinder.

[0033] Figure 6 This is a structural schematic diagram of the evenly divided rod assembly.

[0034] Figure 7 This is a schematic diagram illustrating the alignment of the probe component with the tray when placing batteries of different thicknesses on the tray according to the present invention.

[0035] Figure 8This is a schematic diagram of the structure of the tray corresponding to this invention. Detailed Implementation

[0036] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0037] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to 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 invention.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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, an electrical connection, or a connection that allows communication between them; 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0042] The present invention will now be described in detail with reference to the accompanying drawings and exemplary embodiments.

[0043] A battery-adaptive follower mechanism includes a needle plate mounting base assembly 1 and a needle plate assembly 2; the needle plate mounting base assembly 1 includes a needle plate mounting base 14, and the needle plate assembly 2 is detachably coupled to the needle plate mounting base 14. One side of the needle plate assembly 2 forms a longitudinal working surface that interacts with a battery tray 3; the end of the longitudinal working surface near the lead screw 306 mounted on the battery tray 3 is defined as the forward direction; the side of the needle plate assembly 2 facing the longitudinal working surface is defined as the outward direction, and the opposite side is defined as the inward direction.

[0044] The bottom of the needle plate mounting base 14 is slidably mounted on the horizontally arranged needle plate movement slide rail 13 so that the longitudinal working surface of the needle plate assembly 2 approaches or moves away from the battery tray 3; the needle plate movement slide rail 13 is connected to an external mechanism through the needle plate slide rail fixing plate 11.

[0045] The needle plate assembly 2 has a longitudinal probe slide rail 212 on its longitudinal working surface, and the probe component 200 is slidably mounted on the probe slide rail 212. The front part of the probe slide rail 212 is provided with a probe component initial position holding device 213 and a guide block 201. The guide block 201 has an inclined surface that cooperates with the locking head 311 of the tray liner 302 at the front end of the battery tray 3. Adjacent probe components 200 are connected by a tension spring 203 through a spring pin 2005, and the frontmost probe component 200 is connected to the guide block 201 by a tension spring 203.

[0046] The probe component 200 includes a probe slider 2006, which is slidably mounted on the probe slide rail 212. The probe slider 2006 is provided with a dividing rod assembly 2003 that cooperates with the clip 311 of the tray liner 302 and a probe 2001 for aligning the battery terminals. Both the dividing rod assembly 2003 and the probe 2001 are arranged outward.

[0047] The probe component initial position holding device 213 includes an initial positioning plate 2130 slidably mounted on the probe slide rail 212 via a holding device slider 2131, and an initial position cylinder 2134 fixed to the frame of the needle plate assembly 2. The cylinder extension shaft 2132 of the initial position cylinder 2134 passes through the shaft hole of the cylinder lifting seat 2133 on the initial position cylinder 2134. The end of the cylinder extension shaft 2132 is provided with a shoulder to prevent the cylinder extension shaft 2132 from being pulled away from the cylinder lifting seat 2133. The initial positioning plate 2130 is connected to the guide block 201. In the initial position, the initial position cylinder 2134 pulls the initial positioning plate 2130, so that the probe component 200 is held in position. After the initial position cylinder 2134 is activated, the cylinder extension shaft 2132 is extended, the initial positioning plate 2130 and the guide block 201 are released, and the probe component 200 is pulled back to its original position by the tension spring 203.

[0048] In some embodiments, the needle plate assembly 2 is detachably combined with the needle plate mounting base 14, specifically including: the needle plate mounting base 14 is provided with a longitudinal pull-out needle plate slide rail 15, and the needle plate assembly 2 is slidably mounted on the pull-out needle plate slide rail 15.

[0049] In some embodiments, a displacement sensor 2004 is provided on the top surface of the probe slider 2006. When the battery expands, it is reflected on the probe component 200. The movement of the probe component 200 will cause the displacement sensor 2004 to move. The detection result is fed back to the external host computer. If the battery expansion value exceeds the maximum displacement threshold, the system will sound an alarm.

[0050] In some embodiments, the probe slider 2006 is provided with an outward-facing temperature probe 2002, which senses the temperature of the battery and uploads the data to an external host computer.

[0051] In some embodiments, the top of the needle plate assembly 2 is provided with a current line connector 207 and an adapter plate 206 for connecting an external current line; the front end of the needle plate assembly 2 is provided with a temperature acquisition module 205 and a needle plate handle 204.

[0052] In some embodiments, to avoid a large deviation between the front-end dividing rod assembly 2003 and the clamp 311 of the battery tray 3, the dividing rod assemblies 2003 of several probe components 200 at the rear end are slightly longer than the dividing rod assemblies 2003 of the other probe components 200. This allows the dividing rod assembly 2003 at the rear end to initially align with the battery terminal and then push the front dividing rod assembly 2003 forward, ensuring guiding compatibility.

[0053] In some embodiments, a cylinder fixing plate 12 is provided at the lower end of the needle plate mounting base 14, and the cylinder fixing plate is connected to an external cylinder that pushes laterally.

[0054] In some embodiments, the equalizing rod assembly 2003 includes an equalizing rod fixing seat 20033; the equalizing rod fixing seat 20033 is connected to the probe component 200, and an equalizing rod baffle 20034 is provided on the left side of the equalizing rod fixing seat 20033. The outer side is connected to the positioning block 20031 through the equalizing rod 20030. The positioning block 20031 has a V-shaped jaw that can be engaged with the clamping head 311 of the battery tray 3. An equalizing rod spring 20032 is sleeved on the equalizing rod 20030.

[0055] In some embodiments, the battery tray 3 mated to by the probe component 200 includes a rectangular tray bottom frame 303. The tray bottom frame 303 has a vertical front fixing plate 300 at one end and a vertical rear fixing plate 307 at the other end. The front fixing plate 300 and the rear fixing plate 307 are parallel and connected by a longitudinal inner liner guide shaft 308. Several tray inner liner plates 302 are longitudinally slidably mounted on the inner liner guide shaft 308 via slots 309. Adjacent... The tray inner lining plates 302 have a work station for clamping the battery; the tray inner lining plate 302 closest to the rear fixing plate is provided with a push plate 304, and the rear fixing plate 307 is provided with a trapezoidal nut 305 and a restraint hole 310; a longitudinal lead screw 306 passes through the trapezoidal nut 305 and contacts the push plate 304; the top of the slot 309 is provided with a tray clamp 311 that can be laterally connected to the equalizing rod assembly 2003, and the battery is provided with battery terminals 301 at both ends in the lateral direction.

[0056] The working steps of this invention include:

[0057] 1. An external cylinder pushes the needle plate mounting base assembly 1 and the needle plate assembly 2 to move laterally through the cylinder fixing plate, so that the longitudinal working surface of the needle plate assembly 2 approaches the battery tray 3.

[0058] 2. Align the guide block 201 with the foremost tray clamp 311 of the battery tray 3, and align the evenly distributed rod assembly 2003 on the probe component with the remaining tray clamps 311 of the battery tray 3. At this time, the probe component 200 slides forward along the probe slide rail 212, the tension spring 203 is stretched, and a backward pulling force is applied to the guide block 201 and the probe component 200; the initial position cylinder 2134 pulls the guide block 201 through the cylinder extension shaft 2132 and the initial positioning plate 2130, so that the alignment of the guide block 201 and the probe component 200 remains in the initial position.

[0059] 3. The probe 2001 on the probe component 200 presses against the battery terminal 301, completing the one-to-one follow-up positioning of the probe 2001 and the battery; after positioning is completed, the battery is charged and discharged.

[0060] 4. After charging and discharging are completed, the initial position cylinder 2134 is activated, the extension cylinder extends the shaft 2132, the initial positioning plate 2130 and the guide block 201 are released, and the probe component 200 is pulled back to its original position by the tension spring.

[0061] The advantages of this invention are: it solves the interference caused by thickness errors and battery expansion during battery charging and discharging, and improves guiding compatibility. It has a simple structure, is easy to disassemble and replace, and allows for convenient probe reset after charging and discharging.

Claims

1. A mechanism for a battery-driven follow-up device, characterized in that, It includes a needle plate mounting base assembly (1) and a needle plate assembly (2); the needle plate mounting base assembly (1) includes a needle plate mounting base (14), the needle plate assembly (2) is detachably coupled to the needle plate mounting base (14), and one side of the needle plate assembly (2) forms a longitudinal working surface that interacts with the battery tray (3); the end of the longitudinal working surface near the mounting screw (306) on the battery tray (3) is defined as the forward direction; the side of the needle plate assembly (2) facing the longitudinal working surface is the outside, and the opposite side is the inside; The bottom of the needle plate mounting base (14) is slidably mounted on the horizontally arranged needle plate movement slide rail (13) so that the longitudinal working surface of the needle plate assembly (2) approaches or moves away from the battery tray (3). The needle plate assembly 2 has a longitudinal probe slide rail (212) on its longitudinal working surface, and the probe component (200) is slidably mounted on the probe slide rail (212). The probe slide rail (212) has a probe component initial position holding device (213) and a guide block (201) at its front. The guide block (201) has an inclined surface that cooperates with the tray clamp (311) at the front end of the battery tray (3). A tension spring (203) is connected between adjacent probe components (200), and the frontmost probe component (200) is connected to the guide block (201) by the tension spring (203). The probe component (200) includes a probe slider (2006), which is slidably mounted on the probe slide rail (212). The probe slider (2006) is provided with a dividing rod assembly (2003) that cooperates with the tray clamp (311) and a probe (2001) for aligning the battery terminal (301). Both the dividing rod assembly (2003) and the probe (2001) are arranged facing outward. The probe component initial position holding device (213) includes an initial positioning plate (2130) slidably mounted on the probe slide rail (212) and an initial position cylinder (2134) fixed on the frame of the needle plate assembly (2). The cylinder extension shaft (2132) of the initial position cylinder (2134) passes through the shaft hole of the cylinder lifting seat (2133) on the initial position cylinder (2134). The end of the cylinder extension shaft (2132) is provided with a stop cylinder extension shaft (2132). The shoulder of the cylinder lifting seat (2133) is removed, and the initial positioning plate (2130) is connected to the guide block (201). In the initial position, the initial position cylinder (2134) pulls the initial positioning plate (2130) to keep the probe component (200) in position. After the initial position cylinder (2134) is started, the extension cylinder extends the shaft (2132), the initial positioning plate (2130) and the guide block (201) are released, and the probe component (200) is pulled back to its original position by the tension spring (203). The equalizing rod assembly (2003) includes an equalizing rod fixing seat (20033), which is connected to the probe component (200). An equalizing rod baffle (20034) is provided on the inner side of the equalizing rod fixing seat (20033), and a positioning block (20031) is connected to the outer side through the equalizing rod (20030). The positioning block (20031) has a V-shaped jaw that can be used with the clamp head of the battery tray (3). An equalizing rod spring (20032) is sleeved on the equalizing rod (20030). To avoid a large deviation between the front dividing rod assembly (2003) and the tray clamp (311), the dividing rod assemblies (2003) of several probe components (200) at the rear end are slightly longer than the dividing rod assemblies (2003) of the other probe components. This allows the final dividing rod assembly (2003) to initially align with the battery terminal (301) and then push the front dividing rod assembly (2003) forward, ensuring guide compatibility.

2. The battery-adaptive follow-up device mechanism as described in claim 1, characterized in that, The needle plate assembly (2) is detachably combined with the needle plate mounting base (14), specifically including: the needle plate mounting base (14) is provided with a longitudinal pull-out needle plate slide rail (15), and the needle plate assembly (2) is slidably mounted on the pull-out needle plate slide rail (15).

3. The battery-adaptive follow-up device mechanism as described in claim 1, characterized in that, The top surface of the probe slider (2006) is equipped with a displacement sensor (2004).

4. The battery-adaptive follow-up device mechanism as described in claim 1, characterized in that, The probe slider (2006) is equipped with an outward-facing temperature probe (2002).

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