CN224066313U

CN224066313U - Energy storage and power battery drop test equipment

Info

Publication number: CN224066313U
Application number: CN202520497778.1U
Authority: CN
Inventors: 肖峰; 曾凡衍
Original assignee: Laiyin Technology Monitoring Shenzhen Co ltd
Current assignee: Laiyin Technology Monitoring Shenzhen Co ltd
Priority date: 2025-03-20
Filing date: 2025-03-20
Publication date: 2026-03-31
Anticipated expiration: 2035-03-20

Abstract

This utility model discloses a drop testing device for energy storage and power batteries, including a test frame with a supporting base plate at its bottom; a lifting mechanism mounted on the test frame for controlling the drop height of the product to be tested; and a clamping mechanism mounted on the lifting mechanism for clamping the product to be tested. The clamping mechanism includes clamping cylinders mounted on the lifting mechanism, with clamping elements on opposite sides of each cylinder. Each clamping element has an open opposite side, and each clamping element is elastically fitted with two elastic clamping plates. The clamping surface of the product to be tested is located between the two elastic clamping plates, forming a V-shaped clamping cavity. This utility model, through the V-shaped clamping cavity and the upper and lower positioning method, achieves precise clamping of battery samples of different shapes and sizes, ensuring the stability and consistency of drop testing, while improving testing safety and efficiency.

Description

Energy storage and power battery drop test equipment

Technical Field

The utility model relates to test equipment, in particular to energy storage and power battery drop test equipment.

Background

With the rapid development of energy storage technology and new energy automobile industry, the safety of energy storage batteries and power batteries is receiving more and more attention. The drop test is one of the important means for evaluating the reliability of the battery, and can simulate the impact possibly applied to the battery during transportation, use or accidental drop, so as to verify the mechanical strength and the stability of the internal structure of the battery.

At present, drop test equipment for an energy storage battery and a power battery in the market is single, and mainly has the following problems:

Most of the existing drop test equipment adopts a vertical drop mode, only meets part of test requirements specified by standards, and for test types such as corner drop, random drop and the like, different test equipment or manual assistance is often required to be used, so that the test efficiency is low, the test method is not standardized, and the comparability and consistency of data are difficult to ensure;

The power battery and the energy storage battery have large volume and weight difference, especially the high-capacity energy storage battery, and the weight of the power battery and the energy storage battery can reach hundreds of kilograms, and the existing drop test equipment is usually designed for a small battery, so that the high-quality battery is difficult to stably clamp and release. In addition, some devices cannot be flexibly adjusted for battery samples of different shapes and sizes, and the application range is limited.

Disclosure of utility model

In order to solve the problems, the utility model provides the energy storage and power battery drop test equipment, which is characterized in that a clamping piece with V-shaped clamping capability is used for enabling a product to be tested to be concave after clamping, and an included angle is formed in an up-and-down positioning mode, so that the product to be tested with various shapes can be more positioned and clamped, the application range is wider, and the defects in the prior art can be effectively solved.

The utility model is realized by the following technical scheme that the energy storage and power battery drop test equipment comprises:

the bottom of the test rack is provided with a supporting bottom plate;

The lifting mechanism is arranged on the test rack and used for controlling the falling height of a product to be tested;

The clamping mechanism is arranged on the lifting mechanism and used for clamping a product to be tested;

The clamping mechanism comprises a clamping cylinder arranged on the lifting mechanism, and clamping pieces are respectively arranged on opposite surfaces of the clamping cylinder;

The opposite surface of each clamping piece is hollowed out, two elastic clamping plates are elastically arranged on each clamping piece, the clamping surface of the product to be tested is positioned between the two elastic clamping plates, and a V-shaped clamping cavity is formed between the two elastic clamping plates.

As the preferable technical scheme, the medial surface of every elastic clamping plate all is provided with the engaging lug, passes be provided with a pivot on the clamping piece of engaging lug, install torsion spring in the pivot, through torsion spring makes elastic clamping plate keeps the horizontality.

As the preferable technical scheme, each clamping piece is internally provided with a hollowed-out yielding cavity, and the elastic clamping plates are elastically hinged in the hollowed-out yielding cavities.

As the preferable technical scheme, the clamping cylinder output end is fixedly provided with a threaded connector, the back of the clamping piece is provided with a threaded connecting column, and the threaded connecting column is in threaded connection with the threaded connector.

As the preferable technical scheme, the clamping mechanism further comprises a cross beam, and the clamping cylinder is fixedly arranged on the cross beam through a cylinder bracket.

As the preferable technical scheme, the lifting mechanism comprises a servo motor, a motor screw rod and a lifting plate, wherein the servo motor is arranged at the bottom of the test rack, the output end of the servo motor is connected with the motor screw rod through a coupler, and the lifting plate is arranged on the motor screw rod.

As an optimal technical scheme, the test rack is further provided with a longitudinal guide rail, and the lifting plate is installed on the longitudinal guide rail in a guiding way.

As the preferable technical scheme, the automatic lifting device further comprises a control mechanism for controlling the lifting mechanism and the clamping mechanism, wherein a touch screen, an emergency stop button and a power switch are arranged on the control mechanism, and the controller is a PLC controller.

The device has the beneficial effects that the device adopts the clamping piece with V-shaped clamping capacity, so that a concave structure can be formed after the product to be tested is clamped. Compared with the traditional plane clamping mode, the V-shaped clamping piece increases the contact area and friction force through the concave design, so that the clamping is more stable, and the influence of loosening or sliding of a sample in the testing process on the testing result can be effectively prevented.

Meanwhile, the clamping mode can be adapted to battery samples with different shapes and sizes, and accurate fixing can be realized no matter the battery samples are regular rectangular batteries, special-shaped batteries, or energy storage batteries and power batteries with curved surfaces or special structures;

The clamping mechanism provided by the utility model adopts a replaceable design, can adapt to battery samples with different sizes and weight levels, realizes the function that one device is compatible with multiple test types, reduces the device cost, and improves the test efficiency of a laboratory.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the whole structure of the present utility model;

FIG. 3 is a schematic view of the structure of the clamping member of the present utility model;

FIG. 4 is a schematic cross-sectional view of a clamping member of the present utility model;

reference numerals illustrate:

2. A test rack; 10 parts of a supporting bottom plate, 7 parts of a clamping cylinder, 5 parts of a clamping piece, 51 parts of a first elastic clamping plate, 52 parts of a second elastic clamping plate, 55 parts of a connecting lug, 54 parts of a rotating shaft, 56 parts of a hollowed-out relief cavity, 53 parts of a threaded connecting column, 6 parts of a cylinder bracket, 8 parts of a servo motor, 3 parts of a motor screw rod, 4 parts of a lifting plate, 9 parts of a coupler and 1 parts of a control mechanism.

Detailed Description

All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.

As shown in fig. 1-4, the present utility model provides an energy storage and power cell drop test apparatus for testing the mechanical safety performance of an energy storage cell and a power cell under different drop conditions. The equipment comprises a test rack 2, a lifting mechanism, a clamping mechanism, a control mechanism 1 and the like, and the parts cooperate to complete accurate drop test.

The test rack 2 is a basic supporting structure of the equipment, and a supporting bottom plate 10 is arranged at the bottom of the test rack to enhance the overall stability of the equipment and ensure that vibration or inclination does not occur in the test process. The lifting mechanism is arranged on the test rack 2 and is used for controlling the falling height of a product to be tested so as to meet the requirements of different test standards on the falling height.

The lifting mechanism comprises a servo motor 8, a motor screw 3 and a lifting plate 4, wherein the servo motor 8 is arranged at the bottom of the test rack 2, the output end of the servo motor 8 is connected with the motor screw 3 through a coupler 9, and the motor screw 3 drives the lifting plate 4 to lift along the test rack 2. The lifting plate 4 is provided with a longitudinal guide rail, and the lifting plate 4 is arranged on the longitudinal guide rail through guiding, so that lifting movement is kept stable, shaking or deviation does not occur, and therefore the test sample can be accurately released according to a set height.

The clamping mechanism is arranged on the lifting mechanism and mainly used for clamping a product to be tested, so that the product to be tested is stable before testing and can be freely released at a set height. The clamping mechanism comprises a clamping cylinder 7 and a clamping piece 5, wherein the clamping cylinder 7 is fixedly arranged on the lifting mechanism, and the clamping piece 5 is respectively arranged on the opposite surfaces of the clamping cylinder. The opposite surface of each clamping piece 5 is provided with a hollow structure, and two elastic clamping plates are elastically arranged. The clamping surface of the product to be tested is positioned between the two elastic clamping plates to form a V-shaped clamping cavity, so that the sample is uniformly clamped before falling, and the situation that the falling direction is deviated or the clamping is unstable due to unstable clamping mode is avoided;

In this embodiment, the elastic clamping plates include a first elastic clamping plate 51 and a second elastic clamping plate 52, and when the product to be tested is located between the first elastic clamping plate 51 and the second elastic clamping plate 52, one surface of the two elastic clamping plates, which is far away from the product to be tested, is turned outwards, so as to form a V-shaped clamping cavity for positioning the product to be tested.

In order to ensure the stability of clamping, the inner side surface of each elastic clamping plate is provided with a connecting lug 55, a rotating shaft 54 is arranged on the clamping piece 5 through the connecting lug 55, and a torsion spring is arranged on the rotating shaft 54. The torsion spring is used for providing elastic restoring force, so that the elastic clamping plate is kept in a horizontal state, and when the air cylinder releases clamping, the elastic clamping plate can be quickly reset, and the clamping operation of the next test is not affected.

In addition, each clamping piece 5 is provided with a hollow yielding cavity 56 inside, and the elastic clamping plates are elastically hinged in the hollow yielding cavities 56. The purpose of this structural design is to provide a certain elastic buffer, so that the clamping plate can adapt to test products of different shapes and sizes, and no additional pressure or deformation is caused to the battery sample in the clamping process.

The output of centre gripping cylinder 7 is fixed to be provided with the screwed joint head, and the back of clamping piece 5 is equipped with threaded connection post 53, and threaded connection post 53 passes through threaded connection with the screwed joint head. The connection mode is convenient for the disassembly and replacement of the clamping piece 5 so as to adapt to test products of different types and specifications, and improves the universality and the flexibility of the equipment.

The clamping mechanism further comprises a cross beam, and the clamping cylinder 7 is fixedly arranged on the cross beam through the cylinder bracket 6, so that the clamping mechanism is kept stable in the whole testing process, and the weight and clamping force of a battery sample are borne, and the clamp is prevented from deforming or shifting due to uneven stress.

The whole equipment is controlled by a control mechanism 1, and the control mechanism 1 is used for controlling actions of the lifting mechanism and the clamping mechanism. The control mechanism 1 is provided with a touch screen, an emergency stop button and a power switch, and the controller is a PLC controller. The touch screen is used for setting test parameters such as drop height, drop times and the like and providing real-time data monitoring. The emergency stop button can immediately stop testing under emergency, so that the safety of operators is ensured. The PLC is responsible for logic control and executing instructions, ensures that the lifting mechanism and the clamping mechanism perform accurate actions according to a preset flow, realizes automatic control, avoids human operation errors, and improves the accuracy and repeatability of the test.

The drop test equipment can meet the test requirements of energy storage batteries and power batteries with different sizes, shapes and weights, and supports various test modes such as corner drop, vertical drop, random drop and the like. Through the centre gripping mode in V type centre gripping chamber, the battery that awaits measuring can obtain more stable fixed before the test, simultaneously, utilizes the mode of locating from top to bottom to accomplish the contained angle, makes the centre gripping more accurate, does not receive the battery appearance restriction to ensure drop test's accuracy and reliability.

The foregoing is merely illustrative of specific embodiments of the present utility model, and the scope of the utility model is not limited thereto, but any changes or substitutions that do not undergo the inventive effort should be construed as falling within the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.

Claims

1. A drop test device for energy storage and power batteries, characterized in that it comprises:

Test frame (2), the bottom of which is provided with a support base plate (10);

A lifting mechanism, installed on the test frame (2), is used to control the drop height of the product to be tested;

A clamping mechanism, installed on the lifting mechanism, is used to clamp the product to be tested;

The clamping mechanism includes a clamping cylinder (7) installed on the lifting mechanism, and clamping elements (5) are respectively provided on the opposite sides of the clamping cylinder (7);

Each clamping component (5) has a hollowed-out opposite side, and each clamping component (5) is elastically provided with two elastic clamping plates. The clamping surface of the product to be tested is located between the two elastic clamping plates, and a V-shaped clamping cavity is formed between the two elastic clamping plates.

2. The energy storage and power battery drop test equipment according to claim 1, characterized in that: each elastic clamping plate has a connecting ear (55) on its inner side, and a rotating shaft (54) is provided on the clamping member (5) passing through the connecting ear (55), and a torsion spring is installed on the rotating shaft (54) so that the elastic clamping plate is kept in a horizontal state by the torsion spring.

3. The energy storage and power battery drop test equipment according to claim 2, characterized in that: each clamping member (5) has a hollowed-out relief cavity (56), and the elastic clamping plates are all elastically hinged in the hollowed-out relief cavity (56).

4. The energy storage and power battery drop test equipment according to claim 3, characterized in that: a threaded connector is fixedly provided at the output end of the clamping cylinder (7), and a threaded connecting post (53) is provided on the back of the clamping member (5), and the threaded connecting post (53) is threadedly connected to the threaded connector.

5. The energy storage and power battery drop test equipment according to claim 4, characterized in that: the clamping mechanism further includes a crossbeam, and the clamping cylinder (7) is fixedly installed on the crossbeam by a cylinder bracket (6).

6. The energy storage and power battery drop test equipment according to claim 1, characterized in that: the lifting mechanism includes a servo motor (8), a motor screw (3), and a lifting plate (4), the servo motor (8) is installed at the bottom of the test frame (2), the output end of the servo motor (8) is connected to the motor screw through a coupling (9), and the lifting plate (4) is installed on the motor screw.

7. The energy storage and power battery drop test equipment according to claim 6, characterized in that: a longitudinal guide rail is further provided on the test frame (2), and the lifting plate (4) is guided and installed on the longitudinal guide rail.

8. The energy storage and power battery drop test equipment according to claim 1, characterized in that: it further includes a control mechanism (1) for controlling the lifting mechanism and the clamping mechanism, the control mechanism (1) is provided with a touch screen, an emergency stop button and a power switch, and the control mechanism is a PLC controller.