New energy power battery CCS performance detection device

Abstract

The utility model discloses a new energy power battery CCS performance detection device, and particularly relates to the technical field of battery performance detection, a battery pack is limited between an extrusion end plate I and an extrusion end plate II by arranging a transverse hold-down unit and a vertical hold-down unit, and the extrusion end plate I and the extrusion end plate II are close to each other, so that the battery pack can be fixed on the battery pack. The transverse edge of the battery pack is subjected to extrusion test, then the upper surface and the lower surface of the battery pack are subjected to extrusion test through the upper pressing plate and the lower pressing plate, whether the battery pack has good extrusion resistance can be judged by observing the change condition of components in the battery after extrusion, and the battery pack is subjected to extrusion test from different directions. The pressure is applied to each surface of the battery pack, so that the deformation and damage conditions of the battery pack can be observed, the firmness degree of the battery shell is judged, the shell can be kept complete when the battery pack is subjected to external impact or extrusion, and the internal structure is prevented from being damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery performance detection technical field, concretely is a new energy power battery CCS performance detection device. BACKGROUND

[0002] Power battery CCS performance detection is an important link of ensuring power battery module quality and safety. As the control center of power battery module, the performance of CCS directly affects the overall performance and life of the battery pack. In detection, the safety of power battery needs to be detected. Needle test or extrusion test is generally used for detection. Through detection, it is ensured that the safety standard of power battery module can be met, and damage to power battery module in use is avoided. Battery extrusion test aims to evaluate the safety of battery under mechanical contact force. By simulating the extrusion condition that the battery may be subjected to in actual use or transportation, it is detected whether the battery will cause safety accidents such as short circuit, fire or explosion.

[0003] Power battery pack is applied in new energy vehicles. In the existing scheme, only vibration test is performed on the battery pack, and the safety of power battery cannot be known, that is, the safety performance of the battery pack is unknown. There is no extrusion test on the shell of the battery pack, and it is not clear whether the battery pack will cause safety hazards such as short circuit, fire or explosion after being extruded. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a new energy power battery CCS performance detection device to solve the problems mentioned in the background technology.

[0005] The technical problem solved by the utility model is:

[0006] In the existing scheme, only vibration test is performed on the battery pack, and the safety of power battery cannot be known. The safety performance of the battery pack is unknown.

[0007] The utility model can be realized by the following technical scheme:

[0008] A new energy power battery CCS performance detection device, comprising a base station, a plurality of conveying rollers for conveying battery packs are embedded on the top surface of the base station, and a pressure detection frame is arranged at the upper end surface of the base station, a test assembly for extruding the battery pack in two directions is arranged in the pressure detection frame, the test assembly comprises a horizontal pressure holding unit for extruding the horizontal side of the battery pack and a vertical pressure holding unit for extruding the vertical side of the battery pack.

[0009] The horizontal pressure holding unit comprises extrusion end plate one and extrusion end plate two for blocking the horizontal side of the battery pack in the vertical direction and extruding the battery pack in the horizontal direction.

[0010] The vertical pressing unit comprises an upper pressing plate and a lower pressing plate which move in the vertical direction and press the surface of the battery pack.

[0011] Further technical improvements of the utility model lie in that the lateral pressing unit comprises a fixed plate fixed at the top of the inner cavity of the pressure detection frame, two lateral sliding rails are arranged on the lower surface of the fixed plate, a sliding seat is slidably arranged on the outside of each lateral sliding rail, a lifting cylinder is installed on the bottom surface of the sliding seat, the pushing end of one lifting cylinder is fixed with the extrusion end plate one, and the pushing end of the other lifting cylinder is fixed with the extrusion end plate two.

[0012] Further technical improvements of the utility model lie in that the inner side of the bottom surface of the extrusion end plate two is provided with an outwardly inclined inclined part.

[0013] Further technical improvements of the utility model lie in that the bottom surface of the pressure detection frame is provided with a channel for the entry and output of the battery pack.

[0014] Further technical improvements of the utility model lie in that the upper surface of the base and below the pressure detection frame is provided with a power cavity, the lower pressing plate is liftingly installed in the middle part of the inner cavity of the power cavity, and the upper pressing plate and the lower pressing plate are driven by the double-action cylinder and simultaneously contact the battery pack.

[0015] Further technical improvements of the utility model lie in that the inner wall surface of the top of the power cavity is symmetrically provided with electric push rods, the pushing end of the electric push rod is provided with a sliding plate which slides along the power cavity, a plurality of middle rollers which are in the same height with the conveying roller are rotatably installed on the sliding plate, and the middle rollers are arranged adjacent to the conveying roller.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. By arranging the lateral pressing unit and the vertical pressing unit, the battery pack is limited between the extrusion end plate one and the extrusion end plate two, the lateral edges of the battery pack are pressed and tested by the mutual approach of the extrusion end plate one and the extrusion end plate two, the upper surface and the lower surface of the battery pack are pressed and tested by the upper pressing plate and the lower pressing plate, the change of the internal components of the battery after pressing can be observed to determine whether the battery pack has good anti-extrusion capacity, the battery pack is pressed and tested from different directions, i.e. pressure is applied to each surface of the battery pack, the deformation and damage of the battery pack can be observed to determine the firmness of the battery shell, so that the shell can remain intact when the battery pack is subjected to external impact or extrusion, the damage of the internal structure is prevented, and the safety performance of the battery pack is improved.

[0018] 2. By setting the intermediate roller pushed by the electric push rod in the power cavity, the contact area of the intermediate roller with the battery pack is increased by changing the longitudinal position of the intermediate roller, the intermediate roller and the conveying roller form a conveying device at this time, the battery pack is conveniently conveyed, and the battery pack enters the pressure detection frame for extrusion test through the intermediate roller. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to facilitate those skilled in the art to understand, the utility model will be further described below in combination with the drawings.

[0020] Figure 1 It is a plane structure schematic view of the utility model.

[0021] Figure 2 It is the utility model Figure 1 It is a local enlarged view of A place.

[0022] Figure 3 It is a three-dimensional structure schematic view of the pressure detection frame of the utility model.

[0023] Figure 4 It is the installation structure schematic view of the intermediate roller in the utility model.

[0024] In the drawing: 1, base; 2, fixed plate; 3, transverse slide rail; 4, sliding seat; 5, lifting cylinder; 6, passageway; 7, extrusion end plate one; 8, pressure detection frame; 9, conveying roller; 10, upper pressing plate; 11, power cavity; 12, lower pressing plate; 13, extrusion end plate two; 14, electric push rod; 15, intermediate roller. DETAILED DESCRIPTION

[0025] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific implementation, structure, features and effects according to the utility model are described in detail as follows in combination with the drawings and preferred embodiments.

[0026] Please refer to Figures 1-4The utility model provides a new energy power battery CCS performance detection device, including base 1, the top surface of base 1 is embedded with a plurality of conveying roller 9 for conveying battery pack, and the upper end surface middle part of base 1 is equipped with pressure detection frame 8, the inside of pressure detection frame 8 is equipped with the test component of battery pack two direction extrusion, and test component includes the lateral pressure holding unit of battery pack lateral side extrusion and the vertical pressure holding unit of battery pack longitudinal side extrusion, lateral pressure holding unit includes extrusion end plate one 7 and extrusion end plate two 13 that extrusion end plate one 7 is blocked to battery pack lateral side in vertical direction lift and in horizontal direction sliding extrusion battery pack, and vertical pressure holding unit includes the upper pressing plate 10 and lower pressing plate 12 of battery pack surface extrusion in vertical direction movement, when extruding test is carried out to battery pack, battery pack enters pressure detection frame 8 through conveying roller 9, before measurement, first by extrusion end plate one 7 downward, the side of battery pack is blocked, through the descent of extrusion end plate two 13, battery pack is limited between extrusion end plate one 7 and extrusion end plate two 13, when testing, through the mutual approach of extrusion end plate one 7 and extrusion end plate two 13, the lateral side extrusion test of battery pack, again through the extrusion test of upper pressing plate 10 and lower pressing plate 12 to the upper surface and lower surface of battery pack, through the built-in camera of pressure detection frame 8 observation, through the observation of the change condition of battery internal component after extrusion, can judge whether battery pack has good extrusion resistance, through the extrusion test of battery pack from different directions, namely the pressure that is applied to each surface of battery pack, can observe its deformation and damage condition, and then judge the firmness degree of battery shell, help to ensure that the shell can keep intact when battery pack is subjected to external impact or extrusion, prevent the damage of internal structure.

[0027] As shown in Figure 1 and Figure 2 As shown, lateral pressure holding unit includes fixed plate 2 fixedly arranged in the inner cavity top of pressure detection frame 8, two lateral slide rails 3 are arranged on the lower surface of fixed plate 2, a sliding seat 4 is slidably arranged on the outside of each lateral slide rail 3, a lifting cylinder 5 is installed on the bottom surface of sliding seat 4, the pushing end of one lifting cylinder 5 is fixed with extrusion end plate one 7, and the pushing end of the other lifting cylinder 5 is fixed with extrusion end plate two 13, that is, one lifting cylinder 5 first pushes extrusion end plate one 7 downward, and the conveyed battery pack is blocked and limited, the other lifting cylinder 5 pushes extrusion end plate two 13 downward to contact the other side of the battery pack, and through the driving of the lateral slide rail 3, extrusion end plate two 13 and extrusion end plate one 7 are close to each other and extrude the two sides of the battery pack.

[0028] As shown in Figure 2 As shown, the inner side of the bottom surface of extrusion end plate two 13 is provided with an inclined portion inclined outward, and through the arrangement of the inclined portion, when extrusion end plate two 13 is downward, the battery pack can be limited between extrusion end plate two 13 and extrusion end plate one 7.

[0029] As shown inFigure 1 As shown in the figure, the bottom surface of the pressure detection frame 8 is provided with a channel 6 for the battery pack to enter and output.

[0030] Referring to Figure 2 As shown in the figure, the upper surface of the base 1 and below the pressure detection frame 8 is provided with a power cavity 11, and the lower pressing plate 12 is installed in the middle of the inner cavity of the power cavity 11. The upper pressing plate 10 and the lower pressing plate 12 are driven by a double-acting cylinder and simultaneously contact the battery pack. The upper pressing plate 10 and the lower pressing plate 12 are driven by the double-acting cylinder to move simultaneously and exert a squeezing thrust on the upper surface and the lower surface of the battery pack to perform a squeezing test.

[0031] Referring to Figure 4 As shown in the figure, the inner wall surface of the top of the power cavity 11 is symmetrically provided with an electric push rod 14, and the pushing end of the electric push rod 14 is provided with a sliding plate that slides along the power cavity 11. A plurality of intermediate rollers 15 are rotatably installed on the sliding plate, and the intermediate rollers 15 are arranged adjacent to the conveying roller 9. Initially, the battery pack is conveyed in the conveying roller 9, and at this time the electric push rod 14 is in a long pushing open state, that is, by changing the longitudinal position of the intermediate roller 15, the contact area of the intermediate roller 15 with the battery pack is increased. At this time, the intermediate roller 15 and the conveying roller 9 constitute a conveying device to facilitate the conveying of the battery pack, and the battery pack enters the pressure detection frame 8 through the intermediate roller 15 for squeezing test.

[0032] In use, the battery pack is limited between the extrusion end plate one 7 and the extrusion end plate two 13 by setting the horizontal pressing unit and the vertical pressing unit. The battery pack is squeezed and tested in the horizontal direction by the mutual approach of the extrusion end plate one 7 and the extrusion end plate two 13. The upper surface and the lower surface of the battery pack are squeezed and tested by the upper pressing plate 10 and the lower pressing plate 12. By observing the changes of the internal components of the battery after extrusion, it can be judged whether the battery pack has good extrusion resistance. By extruding and testing the battery pack from different directions, that is, applying pressure to each surface of the battery pack, the deformation and damage of the battery can be observed, and the firmness of the battery shell can be judged. It is ensured that the shell can remain intact when the battery pack is subjected to external impact or extrusion, preventing damage to the internal structure.

[0033] By setting the intermediate roller 15 pushed by the electric push rod 14 in the power cavity 11, by changing the longitudinal position of the intermediate roller 15, the contact area of the intermediate roller 15 with the battery pack is increased. At this time, the intermediate roller 15 and the conveying roller 9 constitute a conveying device to facilitate the conveying of the battery pack, and the battery pack enters the pressure detection frame 8 through the intermediate roller 15 for squeezing test.

[0034] The above merely describes preferred embodiments of the present application and is not intended to limit the present application in any form. Although the present application has been disclosed with preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make minor changes or modifications to the disclosed technical content to obtain equivalent embodiments with equivalent changes, as long as the changes or modifications do not deviate from the technical solution of the present application. Any simple modification, equivalent change and modification of the above embodiments based on the technical essence of the present application are still within the scope of the technical solution of the present application.

Claims

1. A CCS performance testing device for new energy power batteries, comprising a base (1), characterized in that: The top surface of the base (1) is embedded with a plurality of conveying rollers (9) for conveying battery packs, and the upper end face of the base (1) is provided with a pressure testing frame (8). The inside of the pressure testing frame (8) is provided with a test assembly for squeezing the battery pack in two directions. The test assembly includes a transverse pressing unit for squeezing the transverse side of the battery pack and a vertical pressing unit for squeezing the longitudinal side of the battery pack. The lateral pressing unit includes a pressing end plate 1 (7) and a pressing end plate 2 (13) that lift and lower the battery pack in the vertical direction to block the lateral side of the battery pack and slide and press the battery pack in the horizontal direction. The vertical pressing unit includes an upper pressing plate (10) and a lower pressing plate (12) that move vertically and press the surface of the battery pack.

2. The CCS performance testing device for new energy power batteries according to claim 1, characterized in that, The transverse pressing unit includes a fixed plate (2) fixedly installed on the top of the inner cavity of the pressure testing frame (8). Two transverse slide rails (3) are provided on the lower surface of the fixed plate (2). A slide seat (4) is slidably provided on the outside of each transverse slide rail (3). A lifting cylinder (5) is installed on the bottom surface of the slide seat (4). The pushing end of one lifting cylinder (5) is fixed to the first extrusion end plate (7), and the pushing end of the other lifting cylinder (5) is fixed to the second extrusion end plate (13).

3. The CCS performance testing device for new energy power batteries according to claim 1, characterized in that, The inner side of the bottom surface of the extrusion end plate 2 (13) is provided with an outwardly inclined portion.

4. The CCS performance testing device for new energy power batteries according to claim 1, characterized in that, The pressure testing frame (8) has channels (6) on both sides of its bottom surface for battery pack entry and exit.

5. The CCS performance testing device for new energy power batteries according to claim 1, characterized in that, The upper surface of the base (1) and below the pressure detection frame (8) is provided with a power chamber (11). The lower pressure plate (12) is lifted and installed in the middle of the inner cavity of the power chamber (11). The upper pressure plate (10) and the lower pressure plate (12) are driven by a bidirectional cylinder and simultaneously contact the battery pack.

6. The CCS performance testing device for new energy power batteries according to claim 5, characterized in that, Electric push rods (14) are symmetrically installed on the inner wall surface at the top of the power cavity (11). The pushing end of the electric push rod (14) is provided with a sliding plate that slides along the power cavity (11). Multiple intermediate rollers (15) of the same height as the conveying roller (9) are rotatably installed on the sliding plate. The intermediate rollers (15) are arranged adjacent to the conveying roller (9).

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