Multi-functional resistance testing device suitable for different specifications of power batteries

Abstract

The utility model discloses a multifunctional resistance testing device suitable for different specifications of power batteries, and particularly relates to the technical field of resistance testing devices, which comprises a base, a fixing assembly and a driving assembly. The fixing assembly on the base comprises a fixing disc and a rotating disc. The fixing disc is stably fixed to the base. The rotating disc is sleeved with a rotating ring and is in sliding cooperation with the rotating ring. The arc-shaped groove of the rotating disc, the assembly groove of the fixing disc and the movement seat connected through the connecting roller between the arc-shaped groove and the assembly groove constitute a clamping system. The movement seat and the reset spring at the bottom of the assembly groove are provided with an automatic reset function for subsequent clamping. The guide seat and the guide groove ensure accurate movement. The end surface of the clamping seat is provided with a buffer pad for protecting the battery. In the driving assembly, the servo motor is fixed to the base through the support plate. The output end driving roller is in mesh with the gear ring and the rotating ring teeth. The rotating disc is driven to control the clamping seat to clamp the battery. In terms of adaptability, the fixing structure is used to flexibly adjust the distance between the clamping seats, and various batteries can be stably fixed.

Description

TECHNICAL FIELD

[0001] The utility model relates to resistance testing device technical field, concretely is the multifunctional resistance testing device of adaptable different specification power battery. BACKGROUND

[0002] Resistance is the comprehensive embodiment of the internal chemical and physical process of the battery. By testing the resistance, the condition of the internal electrode material, electrolyte, separator and other components of the battery can be understood. For example, electrode material aging, electrolyte drying or separator performance decline will all cause the resistance of the battery to change, and then the potential problems in the battery can be judged according to the resistance change.

[0003] Under the prior art, the size of the power battery varies greatly from the cylindrical 18650 battery to large batteries. The battery fixing structure of the testing device is usually designed for a specific size, and the battery cannot be fixed if the size is out of range. When facing batteries of different sizes, different testing devices may need to be replaced, increasing the cost and complexity of operation. In the test, the measurement error may be caused by the shaking of the battery, and even the testing device and the battery may be damaged. To solve the above problems, we propose a multifunctional resistance testing device adaptable to different specifications of power batteries. SUMMARY

[0004] The utility model aims at solving one of the technical problems existing in the prior art or related art.

[0005] Therefore, the technical scheme adopted by the utility model is as follows:

[0006] The multifunctional resistance testing device adaptable to different specifications of power batteries comprises

[0007] The base is provided with a fixing assembly on the top, and the fixing assembly is provided with a driving assembly on one side;

[0008] The fixing assembly comprises a plurality of fixing discs and a plurality of rotating discs, and the fixing disc and the rotating disc are assembled two by two, and the fixing disc and the rotating disc are rotationally connected, and the bottom of the fixing disc is in contact with and fixedly connected with the base;

[0009] A plurality of arc-shaped grooves are formed on the surface of the rotating disc, a plurality of assembly grooves are formed on the side of the fixing disc away from the rotating disc, and a movement seat is arranged in the assembly groove;

[0010] A return spring is arranged between the movement seat and the bottom of the inner cavity of the assembly groove, a connecting roller is fixedly connected to the side of the movement seat close to the arc-shaped groove, and a plurality of vertical windows are formed on the side of the fixing disc close to the rotating disc;

[0011] One end of the connecting roller away from the movement seat extends through the vertical window into the arc-shaped groove, and the driving assembly comprises a servo motor, and the servo motor is arranged on one side of the rotating disc.

[0012] Preferably, the rotating disc surface is sleeved with a rotating ring, the bottom of the rotating ring is in contact with and slidingly connected with the base, and a plurality of uniformly arranged teeth are fixedly connected to one side of the outer ring wall of the rotating ring.

[0013] Preferably, the plurality of assembly grooves are uniformly distributed around the fixed disc axis, and the movement seat is slidingly connected with the groove wall of the assembly groove.

[0014] Preferably, guide grooves are formed on both sides of the inner wall of the assembly groove, guide seats are fixedly connected to both sides of the movement seat, and the guide seats are slidingly connected with the groove wall of the guide groove.

[0015] Preferably, the connecting roller is slidingly connected with the groove wall of the arc-shaped groove and the inner wall of the vertical window.

[0016] Preferably, a clamping seat is fixedly connected to one end of the movement seat close to the center of the fixed disc, and a plurality of clamping seats are fixedly connected with buffer pads on the end faces close to each other.

[0017] Preferably, the surface of the servo motor is sleeved with a support plate, and the bottom of the support plate is fixedly connected with the base.

[0018] Preferably, the output end of the servo motor is fixedly connected with a driving roller, a plurality of sets of tooth rings are fixedly connected to the surface of the driving roller, and the driving roller is meshingly connected with the rotating ring.

[0019] By adopting the above technical scheme, the utility model has the beneficial effects that:

[0020] In the utility model, the multifunctional resistance testing device comprises a base, a fixed component and a driving component, the fixed component on the base comprises a fixed disc and a rotating disc, the fixed disc is stably fixed to the base, the rotating disc is sleeved with a rotating ring and slidingly matched with the rotating ring, the arc-shaped groove of the rotating disc, the assembly groove of the fixed disc and the movement seat linked through the connecting roller between the arc-shaped groove and the assembly groove, the movement seat and the reset spring at the bottom of the assembly groove are provided with an automatic reset function for subsequent clamping, the guide seat and the guide groove ensure accurate movement, the servo motor is fixed to the base through the support plate, the output end driving roller is meshed with the teeth of the rotating ring through the tooth ring, in terms of adaptability, the distance between the clamping seats can be flexibly adjusted, various batteries can be stably fixed, the servo motor is automatically driven for one-key control of clamping and dismounting, manpower is saved and time efficiency is improved, the battery protection is good, the buffer pad protects the outer shell and stabilizes the interior, the test is accurate, the automatic reset function ensures smooth connection of the test and avoids manual reset disturbance, and the power battery resistance testing demand is met in all directions. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structural schematic view of the utility model as a whole.

[0022] Figure 2 It is an enlarged structural schematic view of A in the utility model. Figure 1

[0023] Figure 3 ​The fixed assembly structure schematic view of the utility model is shown in the figure.

[0024] Figure 4 The fixed disc and clamping seat assembly structure schematic view of the utility model is shown in the figure.

[0025] Figure 5 The utility model Figure 4 The enlarged structure schematic view of the middle B is shown in the figure.

[0026] In the figure: 1, base; 2, fixed assembly; 201, fixed disc; 202, rotating disc; 203, rotating ring; 204, tooth; 205, arc-shaped slot; 206, assembly slot; 207, guide slot; 208, movement seat; 209, guide seat; 210, return spring; 211, clamping seat; 212, buffer pad; 213, vertical window; 214, connecting roller; 3, drive assembly; 301, support plate; 302, servo motor; 303, drive roller; 304, tooth ring. DETAILED DESCRIPTION

[0027] The technical scheme in the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings in the utility model embodiments, and apparently, the described embodiments only are a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts all belong to the protection scope of the utility model.

[0028] Embodiment: as Figures 1-5As shown, the utility model provides multi -functional resistance testing device of different specification power battery can be adapted, including base 1, fixed assembly 2 is established at base 1 top, fixed assembly 2 one side is provided with drive assembly 3, fixed assembly 2 includes multiple fixed disc 201 and multiple rotating disc 202, fixed disc 201 and rotating disc 202 contact, fixed disc 201 and rotating disc 202 rotation is connected, fixed disc 201 bottom and base 1 contact and with fixed connection, rotating disc 202 surface is sleeved with rotating ring 203, rotating ring 203 bottom and base 1 contact and with sliding connection, rotating disc 202 surface is seted with multiple arc grooves 205, fixed disc 201 is seted with multiple assembly grooves 206 on the side away from rotating disc 202, multiple assembly grooves 206 are evenly distributed around fixed disc 201 axis, and motion seat 208 is built in assembly groove 206, and motion seat 208 is slidably connected with the groove wall of assembly groove 206, and reset spring 210 is arranged between motion seat 208 and the bottom of the inner cavity of assembly groove 206, and guide slot 207 is seted on the both sides of the inner wall of assembly groove 206, and guide seat 209 is fixedly connected on the both sides of motion seat 208, and guide seat 209 is slidably connected with the groove wall of guide slot 207, and connecting roller 214 is fixedly connected on the side of motion seat 208 close to arc groove 205, and multiple vertical windows 213 are seted on the side of fixed disc 201 close to rotating disc 202, and one end of connecting roller 214 away from motion seat 208 extends to arc groove 205 through vertical window 213, and connecting roller 214 is slidably connected with the groove wall of arc groove 205, and connecting roller 214 is slidably connected with the inner wall of vertical window 213, and clamping seat 211 is fixedly connected to the end of motion seat 208 close to the center of fixed disc 201, and the end face of multiple clamping seats 211 close to each other is fixedly connected with buffer pad 212, and fixed disc 201 is firmly fixed on base 1, which provides stable support for the whole fixed structure. Rotating disc 202 is in close contact with fixed disc 201 and can rotate flexibly, and the rotating ring 203 sleeved on its surface can smoothly slide on base 1. When drive assembly 3 is started, rotating ring 203 is driven to rotate, and rotating disc 202 is synchronously rotated. Arc groove 205 on rotating disc 202 plays a key guiding role. Since motion seat 208 in assembly groove 206 is connected with arc groove 205 through connecting roller 214, when rotating disc 202 rotates, the curve profile of arc groove 205 forces connecting roller 214 to slide along the groove wall. Guide seat 209 on both sides of motion seat 208 slides accurately in guide slot 207 on the inner wall of assembly groove 206, ensuring that motion seat 208 can only move in the preset direction and cannot deviate. At this time, motion seat 208 stably approaches or moves away from the center of fixed disc 201 in assembly groove 206, driving clamping seat 211 at its end to act synchronously. Moreover, reset spring 210 arranged between motion seat 208 and the bottom of the inner cavity of assembly groove 206 can reset motion seat 208 by its own elastic force after the power battery is released, preparing for the next clamping.

[0029] Further, the servo motor 302 is arranged in the driving assembly 3, the servo motor 302 is sleeved with the supporting plate 301, the bottom of the supporting plate 301 is fixedly connected with the base 1, the output end of the servo motor 302 is fixedly connected with the driving roller 303, a plurality of groups of tooth rings 304 are fixedly connected with the surface of the driving roller 303, a plurality of evenly arranged teeth 204 are fixedly connected with one side of the outer ring wall of the rotating ring 203, the driving roller 303 is meshed with the rotating ring 203, and the servo motor 302 is stably fixed on the supporting plate 301 supported by the base 1, so that the stability during operation is guaranteed. After the motor is started, the output end drives the driving roller 303 to rotate at high speed, the plurality of groups of tooth rings 304 on the surface of the driving roller 303 are closely meshed with the teeth 204 on one side of the outer ring wall of the rotating ring 203, the rotating power of the motor is efficiently transmitted to the rotating ring 203, a stable and strong power source is provided for the operation of the fixed assembly 2, the rotation of the rotating disc 202 is accurately controlled, and then the clamping or loosening operation of the power battery is realized.

[0030] With the unique design of the fixed assembly 2, through the cooperative operation of the rotating disc 202 and the fixed disc 201, the distance between the clamping seats 211 is ingeniously changed, various specifications of power batteries are easily coped with, the application range of the device is greatly widened, the diversified test requirements are met, the automatic mode driven by the servo motor 302 is adopted, the operator only needs to simply control the motor switch, and then the clamping and dismounting process of the battery can be quickly completed. Compared with the traditional manual operation, time and labor cost are greatly saved, the test efficiency is significantly improved, the buffer pad 212 on the end surface of the clamping seat 211 effectively buffers the excessive clamping force when the battery is tightly clamped, the battery shell is prevented from being damaged, the service life of the battery is prolonged, the stability of the internal structure of the battery is ensured, the authenticity of the test result is guaranteed, the addition of the reset spring 210 adds the automatic reset function of the device, after the battery is loosened after each test, the moving seat 208 can quickly return to the initial position under the action of the spring, without manual additional adjustment, and the operation convenience and test continuity of the device are further improved.

[0031] Obviously, those skilled in the art can make various modifications and variations to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model belong to the scope of the utility model claims and their equivalent technologies, the utility model also intends to include these modifications and variations.

Claims

1. A multifunctional resistance testing device adaptable to power batteries of different specifications, characterized in that, include A base, wherein a fixing component is provided on the top of the base, and a driving component is provided on one side of the fixing component; The fixing assembly includes multiple fixed disks and multiple rotating disks. The fixed disks and rotating disks are assembled in pairs and are rotatably connected. The bottom of the fixed disk contacts and is fixedly connected to the base. The rotating disk has multiple arc-shaped grooves on its surface, and the fixed disk has multiple assembly grooves on the side away from the rotating disk, with a motion seat built into the assembly groove. A return spring is provided between the motion seat and the bottom of the inner cavity of the assembly groove. A connecting roller is fixedly connected to the side of the motion seat near the arc groove. Multiple vertical windows are opened on the side of the fixed plate near the rotating plate. The end of the connecting roller away from the motion seat extends through the vertical window into the arc-shaped groove, and the drive assembly includes a servo motor, which is located on one side of the rotating disk.

2. The multifunctional resistance testing device adaptable to different specifications of power batteries according to claim 1, characterized in that, A rotating ring is fitted onto the surface of the rotating disk. The bottom of the rotating ring contacts and slides with the base. A plurality of evenly arranged teeth are fixedly connected to one side of the outer ring wall of the rotating ring.

3. The multifunctional resistance testing device adaptable to different specifications of power batteries according to claim 1, characterized in that, The assembly slots are evenly distributed around the axis of the fixed disk, and the moving seat is slidably connected to the wall of the assembly slot.

4. The multifunctional resistance testing device adaptable to different specifications of power batteries according to claim 1, characterized in that, The inner wall of the assembly slot is provided with guide slots on both sides, and the motion seat is fixedly connected to guide seats on both sides, with the guide seats slidably connected to the guide slot wall.

5. The multifunctional resistance testing device adaptable to different specifications of power batteries according to claim 1, characterized in that, The connecting roller is slidably connected to the wall of the arc-shaped groove, and the connecting roller is slidably connected to the inner wall of the vertical window.

6. The multifunctional resistance testing device adaptable to different specifications of power batteries according to claim 1, characterized in that, A clamping seat is fixedly connected to one end of the motion seat near the center of the fixed plate, and a buffer pad is fixedly connected to the end faces of the multiple clamping seats that are close to each other.

7. The multifunctional resistance testing device adaptable to different specifications of power batteries according to claim 1, characterized in that, A support plate is fitted onto the surface of the servo motor, and the bottom of the support plate is fixedly connected to the base.

8. The multifunctional resistance testing device adaptable to different specifications of power batteries according to claim 1, characterized in that, The output end of the servo motor is fixedly connected to a drive roller, and multiple sets of toothed rings are fixedly connected to the surface of the drive roller. The drive roller is meshed with the rotating ring.

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