Probe buffer structure for battery formation

Abstract

The utility model relates to battery formation probe technical field especially discloses a kind of probe buffer structures for battery formation, including movable aluminium plate and the probe assembly of fixed in movable aluminium plate bottom, probe assembly includes probe base plate and mounting base, probe base plate is movably arranged in the inside of mounting base, the top of probe base plate is provided with upper baffle piece, the bottom of probe base plate is provided with lower baffle piece, the both ends of probe base plate are provided with first elastic component, the top of first elastic component and the bottom of movable aluminium plate are abutted, the bottom of mounting base movably is provided with pressure component, pressure component includes driving pressure block and driven pressure block, driving pressure block movably is arranged in the bottom of driven pressure block, the top of driving pressure block is provided with second elastic component, driven pressure block movably is arranged in the bottom of mounting base, the top of driven pressure block and the bottom of lower baffle piece are aligned, overall structure can realize anti-vibration effect, ensure that probe is stable, can prevent probe from appearing deformation and falling-off situation.

Description

Technical Field

[0001] This utility model relates to the field of battery formation probe structure technology, and in particular to a probe buffer structure for battery formation. Background Technology

[0002] The battery formation process involves charging the electrolyte-filled battery with a small current, which includes two stages: pre-formation and main formation. The purpose of formation is to enable the lithium-ion battery to achieve stable and efficient conversion.

[0003] During the pressure formation process of batteries, it is necessary to reliably connect the battery tray to the adapter plate of the formation cabinet. First, the battery to be tested is placed stably inside the battery tray, and the battery tray is moved to the testing station. The pushing structure on the testing station moves the movable aluminum plate closer to the battery tray. The probe assembly is located on the movable aluminum plate. The movable aluminum plate moves the test probe group closer to the battery tabs in the battery tray until the probes are electrically connected to the battery tabs, and then the battery formation testing begins. However, the traditional probe structure does not have a buffer structure. During the pressure formation process, the probe is prone to shaking due to vibration, and the tray deformation can cause the battery tabs to misalign with the probes, resulting in the battery tray directly colliding with the pin, causing the probe to bend and deform, which affects the formation effect.

[0004] Referring to patent publication number "CN219534621U", the patent title is "A probe module and a battery formation and capacity needle bed". This technical solution discloses "a probe module and a battery formation and capacity needle bed. The probe module includes multiple probe assemblies, a variable pitch base, and a variable pitch drive assembly. Since the variable pitch base has a mounting portion extending in a straight line, multiple probe assemblies are movably disposed on the mounting portion. The variable pitch drive assembly can drive the probe assemblies to move on the mounting portion, thereby changing the position of the probe assemblies on the mounting portion and the distance between adjacent probe assemblies." Although this technical solution can match the probe assemblies with any battery spacing and can adapt to various batteries of different thicknesses, it cannot solve the problem of pin bending and deformation caused by direct collision between the tray and the probe assembly.

[0005] Therefore, how to prevent the probe from directly colliding with the battery tray is the main technical problem that technicians need to solve. Utility Model Content

[0006] The purpose of this invention is to provide a probe buffer structure for battery formation, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A probe buffer structure for battery formation includes a movable aluminum plate and a probe assembly fixed to the bottom of the movable aluminum plate. The probe assembly includes a probe substrate and a mounting base. The probe substrate is movably disposed inside the mounting base. An upper partition is provided on the top of the probe substrate, and a lower partition is provided on the bottom of the probe substrate. First elastic components are provided at both ends of the probe substrate, and the top of the first elastic components abuts against the bottom of the movable aluminum plate.

[0009] The bottom of the mounting base is movably provided with a pressing component, which includes an active pressing block and a driven pressing block. The active pressing block is movably provided at the bottom of the driven pressing block, and a second elastic component is provided at the top of the active pressing block. The driven pressing block is movably provided at the bottom of the mounting base, and the top of the driven pressing block is aligned with the bottom of the lower partition.

[0010] Preferably, the surface of the upper partition is uniformly provided with a plurality of limiting through holes, all of which are used for probes to extend out, and both ends of the upper partition are provided with round holes, which are used for the top of the first elastic component to extend out.

[0011] Preferably, both the first elastic component and the second elastic component include a plurality of elastic elements.

[0012] Preferably, the mounting base has mounting grooves on both outer sides, and each mounting groove is fitted with a positioning block. The top of the positioning block is fixedly connected to the bottom of the movable aluminum plate.

[0013] Preferably, both the upper partition and the lower partition are integrally made of insulating material.

[0014] Preferably, the top of the mounting base has an opening that matches the upper partition.

[0015] Preferably, the top of the driven pressure block abuts against the bottom inner wall of the mounting base, and the top of the driving pressure block abuts against the bottom inner wall of the driven pressure block.

[0016] Preferably, the outer side of the probe substrate extends outward and has an installation through hole, and a limiting post is provided on the movable aluminum plate, the installation through hole being adapted to the limiting post.

[0017] Compared with the prior art, this technical solution provides a probe buffer structure for battery formation: the probe assembly includes a probe substrate and a mounting base, with the probe substrate movably disposed inside the mounting base. An upper partition is provided on the top of the probe substrate, and a lower partition is provided on the bottom of the probe substrate. First elastic components are provided at both ends of the probe substrate, with the top of the first elastic components abutting against the bottom of a movable aluminum plate. This keeps the probes on the probe substrate below the plane of the movable aluminum plate, preventing the probes from directly contacting the bottom of the tray during battery formation. A pressing component is movably disposed at the bottom of the mounting base to press... The component includes an active pressure block and a driven pressure block. The active pressure block is movably positioned at the bottom of the driven pressure block, and a second elastic component is provided on the top of the active pressure block. The driven pressure block is movably positioned at the bottom of the mounting base, so that the top of the driven pressure block is aligned with the bottom of the lower partition. When the battery tray is aligned with the probe substrate, the cylinder can push the pressing component to move the probe substrate upward, allowing the probe to contact the battery tabs. The pressing component transmission structure reduces rigid connections, and the second elastic component of the pressing component increases buffering performance. The overall structure can achieve vibration reduction, ensure probe stability, and prevent probe deformation and detachment. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art 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.

[0019] Figure 1 This is a schematic diagram of the probe assembly and battery tray structure in this utility model.

[0020] Figure 2 This is a schematic diagram of the overall structure of the probe assembly in this utility model.

[0021] Figure 3 This is a schematic diagram of the exploded structure of the probe assembly in this utility model.

[0022] Figure 4 This is an enlarged schematic diagram of point A in this utility model.

[0023] As indicated by the labels in the diagram: 1. Movable aluminum plate; 2. Probe assembly; 3. Pressing assembly; 21. Probe substrate; 22. Mounting base; 31. Active pressing block; 32. Driven pressing block; 99. Limiting through hole; 100. Round hole; 211. Upper partition plate; 212. Lower partition plate; 221. Mounting groove; 222. Positioning block; 213. First elastic component; 311. Second elastic component. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. The preferred embodiments of this utility model will now be described in more detail with reference to the accompanying drawings. Although the preferred embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this utility model more thorough and complete, and to fully convey the scope of this utility model to those skilled in the art.

[0025] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0026] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0027] In the description of this utility model, it should be understood that the terms "thickness", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] It should be understood that although the terms "first," "second," "third," etc., may be used to describe various components in this invention, this information should not be limited to these terms. These terms are only used to distinguish components of the same type from each other. For example, without departing from the scope of this invention, a first component may also be referred to as a second component, and similarly, a second component may also be referred to as a first component. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] The following is in conjunction with the appendix Figures 1 to 4 The technical solutions of the embodiments of this utility model are described in detail.

[0031] In Example 1, since in existing battery formation processes, the probe assembly is mostly above the plane of the movable aluminum plate 1, after the battery tray moves and aligns with the movable aluminum plate 1, it will directly collide with the probes of the probe assembly 2, causing the probes to bend, deform, and fall off. Therefore, to solve this technical problem, this embodiment provides a probe buffer structure, specifically as follows: The probe assembly 2 includes a probe substrate 21 and a mounting base 22. The probe substrate 21 is movably disposed inside the mounting base 22. An upper partition 211 is provided on the top of the probe substrate 21, and a lower partition 212 is provided on the bottom of the probe substrate 21. First elastic components 213 are provided at both ends of the probe substrate 21, so that the top of the first elastic component 213 abuts against the bottom of the movable aluminum plate 1, thereby making the probes on the probe substrate 21 lower than the plane of the movable aluminum plate 1, thus preventing over-formation of the battery. During the process, the probe directly contacts the bottom of the tray; and a pressing component 3 is movably set at the bottom of the mounting base 22. The pressing component 3 includes an active pressing block 31 and a driven pressing block 32. The active pressing block 31 is movably set at the bottom of the driven pressing block 32, and a second elastic component 311 is set at the top of the active pressing block 31. The driven pressing block 32 is movably set at the bottom of the mounting base 22, so that the top of the driven pressing block 32 is aligned with the bottom of the lower partition 212. When the battery tray is aligned with the probe substrate 21, the pressing component 3 can be pushed by a cylinder to move the probe substrate 21 upward, so that the probe can contact the battery tab. The probe on the probe substrate 21 can make electrical contact with the tab of the battery tray, and the second elastic component 311 of the pressing component 3 can increase the buffer performance. The overall structure can achieve the anti-vibration effect, ensure the stability of the probe, and prevent the probe from deforming and falling off.

[0032] In this embodiment, it should be noted that a plurality of limiting through holes 99 are uniformly formed on the surface of the upper partition 211. The plurality of limiting through holes 99 are all used for probes to extend out. By forming circular holes 100 at both ends of the upper partition 211, the circular holes 100 are used for the top of the first elastic component 213 to extend out. The limiting through holes 99 ensure that the probe will not tilt or deviate when it extends out, and the circular holes 100 limit the first elastic component 213 to prevent the position of the first elastic component 213 from tilting during the compression process.

[0033] It should also be noted that both the first elastic component 213 and the second elastic component 311 include several elastic elements. The elastic elements can be springs. A spring is a mechanical part that works by utilizing elasticity. It is mainly made of elastic material. It deforms under the action of external force and returns to its original shape after the external force is removed. There are many types of springs. According to their shape, they mainly include helical springs, spiral springs, leaf springs, and irregular springs.

[0034] To facilitate installation, mounting grooves 221 are provided on both sides of the mounting base 22, and positioning blocks 222 are engaged in both mounting grooves 221. The top of the positioning blocks 222 is fixedly connected to the bottom of the movable aluminum plate 1, so that the mounting base 22 is fixed at the bottom of the movable aluminum plate 1. This allows the probe assembly 2 to approach the battery tray when the cylinder moves the movable aluminum plate 1 closer to the battery tray.

[0035] In this embodiment, both the upper partition 211 and the lower partition 212 can be integrally made of insulating material, and the mounting base 22, the pressing assembly 3 and the positioning block 222 can also be made of insulating, high temperature resistant and fire-retardant materials.

[0036] By providing an opening at the top of the mounting base 22 that matches the upper partition 211, the upper partition 211 is kept flush with the top of the mounting base 22 during installation. This allows the upper partition 211 to act as an upper limit for the probe substrate 21 when the mounting base 22 is fixed at the bottom of the movable aluminum plate 1. Under the elastic action of the first elastic component 213, the probes on the probe substrate 21 are kept below the plane of the movable aluminum plate 1, preventing direct collisions with the probes during installation and battery formation testing, thus preventing the probes from bending, deforming, or falling off.

[0037] To enable the active pressure block 31 of the pressure assembly 3 to be driven by a cylinder during the battery formation process, since the top of the driven pressure block 32 abuts against the bottom inner wall of the mounting base 22, and the top of the active pressure block 31 abuts against the bottom inner wall of the driven pressure block 32, the mounting base 22 can limit the driven pressure block 32 to prevent it from falling off, and the driven pressure block 32 can limit the active pressure block 31 to prevent it from falling off. It also provides movement space for the driven pressure block 32 and the active pressure block 31 within the mounting base 22, reducing rigid connections and further improving the transmission buffering effect.

[0038] The present invention has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have different focuses; for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also understand that the actions and modules involved in the specification are not necessarily essential to the present invention. Furthermore, it is understood that the steps in the method of the present invention embodiments can be adjusted, combined, and deleted according to actual needs, and the structure in the device of the present invention embodiments can be combined, divided, and deleted according to actual needs.

[0039] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A probe buffer structure for battery formation, comprising a movable aluminum plate and a probe assembly fixed to the bottom of the movable aluminum plate, characterized in that, The probe assembly includes a probe substrate and a mounting base. The probe substrate is movably disposed inside the mounting base. An upper partition is provided on the top of the probe substrate, and a lower partition is provided on the bottom of the probe substrate. Both ends of the probe substrate are provided with first elastic components, and the top of the first elastic components abuts against the bottom of the movable aluminum plate. A pressing component is movably disposed at the bottom of the mounting base. The pressing component includes an active pressing block and a driven pressing block. The active pressing block is movably disposed at the bottom of the driven pressing block, and a second elastic component is disposed at the top of the active pressing block. The driven pressing block is movably disposed at the bottom of the mounting base, and the top of the driven pressing block is aligned with the bottom of the lower partition.

2. The probe buffer structure for battery formation according to claim 1, characterized in that, The upper partition plate has a plurality of limiting through holes evenly distributed on its surface. All of the limiting through holes are used for probes to extend out. Both ends of the upper partition plate have round holes for the top of the first elastic component to extend out.

3. The probe buffer structure for battery formation according to claim 1, characterized in that, Both the first elastic component and the second elastic component include a plurality of elastic elements.

4. The probe buffer structure for battery formation according to claim 1, characterized in that, The mounting base has mounting grooves on both outer sides, and each mounting groove is fitted with a positioning block. The top of the positioning block is fixedly connected to the bottom of the movable aluminum plate.

5. A probe buffer structure for battery formation according to claim 1, characterized in that, Both the upper partition and the lower partition are integrally made of insulating material.

6. The probe buffer structure for battery formation according to claim 1, characterized in that, The top of the mounting base has an opening that matches the upper partition.

7. The probe buffer structure for battery formation according to claim 1, characterized in that, The top of the driven pressure block abuts against the bottom inner wall of the mounting base, and the top of the driving pressure block abuts against the bottom inner wall of the driven pressure block.

8. A probe buffer structure for battery formation according to claim 1, characterized in that, The probe substrate extends outward from its outer side and has a mounting through hole. A limiting post is provided on the movable aluminum plate, and the mounting through hole is adapted to the limiting post.

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