Clamp for detecting charging and discharging performance of battery in vibration process and vibration simulator

Abstract

The utility model relates to a clamp for detecting charging and discharging performance of a battery in a vibration process and a vibration simulator. The clamp comprises a first clamping plate, a second clamping plate, a first clamping piece and a second clamping piece, the first clamping plate and the second clamping plate are oppositely arranged and fixedly connected through a connecting rod; the first clamping plate and the first clamping piece are fixedly connected through a spring assembly, and the second clamping plate and the second clamping piece are fixedly connected through a spring assembly. The first clamping piece and the second clamping piece are oppositely arranged and located between the first clamping plate and the second clamping plate. A battery position for placing a battery is formed between the first clamping piece and the second clamping piece, and a first buckle and a second buckle for preventing the battery from deviating are arranged on the first clamping piece and the second clamping piece. According to the utility model, on the basis of firmly clamping the battery, the road test vibration condition of the whole vehicle is simulated, and the overall expansion of the appearance of the battery and the performance of the battery cell are verified.

Description

TECHNICAL FIELD

[0001] The utility model belongs to battery performance detection technical field, specifically relates to a kind of fixture and vibration simulator of detecting battery vibration process charge-discharge performance. BACKGROUND

[0002] The statements herein are provided only to aid in the understanding of the present utility model, and do not necessarily constitute the prior art.

[0003] With the rapid development of new energy vehicles, the application of lithium batteries is becoming more and more widespread. As an indispensable part of the battery development process, the matching tool for verification is indispensable. According to the current development and detection status and the research on the actual road conditions of the automobile, the inventor found that there is only a battery clamp test tool with a single stationary clamping function on the market for detecting battery performance; there is no clamp test tool that can simulate the influence of battery vibration on the overall appearance and performance of the battery during the road test of new energy vehicles. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a kind of fixture and vibration simulator of detecting battery vibration process charge-discharge performance, can simulate the whole vehicle road test vibration condition on the basis of firmly clamping battery, and then verify the overall appearance expansion and cell performance of battery.

[0005] To achieve the above-mentioned purpose, one or more embodiments of the utility model provide the following technical solutions:

[0006] The first aspect of the utility model provides a kind of fixture of detecting battery vibration process charge-discharge performance, including first clamping plate, second clamping plate, first clamping piece and second clamping piece;

[0007] The first clamping plate and the second clamping plate are oppositely arranged and fixedly connected by connecting rod;The first clamping plate and the first clamping piece are fixedly connected by spring assembly, and the second clamping plate and the second clamping piece are fixedly connected by spring assembly;

[0008] The first clamping piece and the second clamping piece are oppositely arranged and located between the first clamping plate and the second clamping plate;The battery position for placing battery is formed between the first clamping piece and the second clamping piece, and the first clamping piece and the second clamping piece are provided with first buckle and second buckle for preventing battery from deviating.

[0009] As a further technical solution, the first buckle is in strip shape and located at the wide side of the first clamping piece and the second clamping piece, specifically: two first buckles are arranged on each wide side of the first clamping piece and the second clamping piece, and the two first buckles are respectively located at the two ends of the wide side.

[0010] As a further technical scheme, the second buckle is in a strip shape and is located at the long side of the first clamping piece and the second clamping piece.

[0011] As a further technical scheme, the spring assembly is in multiple groups, each group of spring assembly comprises a spring fixing column and a spring, one end of the spring fixing column passes through the first clamping plate or the second clamping plate and is fixed on the first clamping plate or the second clamping plate through a mechanical screw, and the other end is connected with the spring, and the end of the spring not connected with the spring fixing column is in abutment with the first clamping piece or the second clamping piece.

[0012] As a further technical scheme, two rows of first connecting holes are formed on the first clamping plate and the second clamping plate, and each row of first connecting holes is arranged along the length direction of the first clamping plate or the second clamping plate, and the connecting rod is connected with the first clamping plate and the second clamping plate by passing through the first connecting hole.

[0013] As a further technical scheme, a plurality of second connecting holes are further formed on the first clamping plate and the second clamping plate.

[0014] The second aspect of the utility model provides a vibration simulator, including vibrator body, vibration swing platform and the clamp of first aspect, the vibrator body with the vibration swing platform is integral type structure, the clamp fixed platform is fixed on the vibration swing platform, be provided with fixed assembly on the clamp fixed platform, the fixed assembly is used for fixing clamp.

[0015] As a further technical scheme, the fixed assembly has two groups, one group is used for fixing the first clamping plate, and the other group is used for fixing the second clamping plate.

[0016] As a further technical scheme, each fixed assembly contains a plurality of tripods, and a plurality of third connecting holes are formed on each tripod.

[0017] As a further technical scheme, the position of the third connecting hole formed on each tripod corresponds to the position of the second connecting hole formed on the first clamping plate and the second clamping plate.

[0018] The beneficial effects of one or more technical schemes above are as follows:

[0019] In the utility model, the first clamping plate and the first clamping piece, the second clamping plate and the second clamping piece are fixedly connected through the spring assembly, the first clamping piece and the second clamping piece form a battery position for placing a battery, and the first buckle and the second buckle are arranged on the first clamping piece and the second clamping piece. The design of the buckle can prevent the battery from deviating, and the spring can enhance the fastening effect on the battery through the extrusion effect of its own elasticity. Therefore, the utility model can firmly clamp the battery on the clamp.

[0020] The utility model discloses a fixing assembly for fixing clamp is set up on the vibration simulator, when vibration simulator works will drive fixing assembly vibration, and then fixing assembly will drive the battery on the clamp vibration, and because the spring for controlling the battery clamping extrusion degree has telescopic, so when vibration simulator works, can very good simulation whole car road condition under the real motion state of battery. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings accompanying the specification of this application form a part thereof, serve to provide further understanding of the application, and together with the description of the exemplary embodiments of the application, serve to explain the application, and do not limit the application.

[0022] Figure 1 It is the first perspective drawing of the whole structure of the clamp for detecting the charge and discharge performance of battery vibration process in the utility model embodiment.

[0023] Figure 2 It is the second perspective drawing of the whole structure of the clamp for detecting the charge and discharge performance of battery vibration process in the utility model embodiment.

[0024] Figure 3 It is the third perspective drawing of the whole structure of the clamp for detecting the charge and discharge performance of battery vibration process in the utility model embodiment.

[0025] Figure 4 It is the partial structure schematic drawing of the vibration simulator in the utility model embodiment.

[0026] Figure 5 It is the whole structure schematic drawing of the vibration simulator in the utility model embodiment.

[0027] In the drawing, 1 first clamping plate;2 second clamping plate;3 first clamping piece;4 second clamping piece;5 connecting rod;6 first buckle;7 second buckle;8 spring assembly;81 spring fixed column;82 spring;9 mechanical screw;10 first connecting hole;11 second connecting hole;12 vibrator body;13 vibration swing platform;14 clamp fixed platform;15 tripod;16 third connecting hole;17 explosion -proof valve position space;18 battery space;19 vibrator hole. DETAILED DESCRIPTION

[0028] Embodiment one

[0029] The specific implementation of the embodiment is described below with reference to the drawings.

[0030] Reference Figure 1The utility model embodiment provides a kind of fixture of detecting battery vibration process charge-discharge performance, including first clamping plate 1, second clamping plate 2, first clamping piece 3 and second clamping piece 4.

[0031] Specifically, the first clamping plate 1 and the second clamping plate 2 are oppositely arranged and fixedly connected by the connecting rod 5; the first clamping plate 1 and the first clamping piece 3 are fixedly connected by the spring assembly 8, and the second clamping plate 2 and the second clamping piece 4 are fixedly connected by the spring assembly 8.

[0032] Referring to Figure 1 , the first clamping piece 3 and the second clamping piece 4 are oppositely arranged and located between the first clamping plate 1 and the second clamping plate 2; a battery position for placing a battery is formed between the first clamping piece 3 and the second clamping piece 4, and a first buckle 6 and a second buckle 7 for preventing the battery from deviating are arranged on the first clamping piece 3 and the second clamping piece 4.

[0033] Specifically, when the battery to be detected is placed between the first clamping piece 3 and the second clamping piece 4, the spring assembly near the first clamping plate 1 extrudes the first clamping piece 3 downward, and the spring assembly near the second clamping plate 2 extrudes the second clamping piece 4 upward, so that the first clamping piece 3 and the second clamping piece 4 form a converging space for the battery, thereby ensuring the firmness of the clamp when clamping the battery.

[0034] Referring to Figure 1 , Figure 3 , the first buckle 6 is in the shape of a long strip and is located at the wide side of the first clamping piece 3 and the second clamping piece 4; specifically, two first buckles 6 are arranged on each wide side of the first clamping piece 3 and the second clamping piece 4, and the two first buckles 6 are respectively located at the two ends of the wide side.

[0035] Further, since the size of the battery body matches the battery space 18 formed by the first clamping piece 3 and the second clamping piece 4, the wide side of the battery body just abuts against the first buckle 6, and the long side of the battery body just abuts against the second buckle 7. Therefore, even if the clamp moves during clamping the battery, the battery will not deviate.

[0036] Further, as the two first buckles 6 are respectively located at the two ends of the side wide side, a space is exposed between the two first buckles 6 on the same side wide side; thus, when the battery space 18 for placing the battery is formed between the first clamping piece 3 and the second clamping piece, a space for placing the explosion-proof valve, i.e., the explosion-proof valve position space 17, is formed between the four first buckles 6 on the same side wide side. With this design, the explosion-proof valve can be installed on the battery through the position space, and the explosion-proof valve can clamp the battery, so that when the working state of the battery is not ideal, the pressure inside the battery can be released in time through the explosion-proof valve to prevent explosion and protect the performance of the battery and the environment.

[0037] With reference to Figure 1 , Figure 3 , the spring assembly 8 is a plurality of groups, each group of spring assembly 8 includes a spring fixing column 81 and a spring 82; one end of the spring fixing column 81 passes through the first clamping plate 1 or the second clamping plate 2 and is fixed on the first clamping plate 1 or the second clamping plate 2 by a mechanical screw 9, and the other end is connected with the spring 82; the end of the spring 82 not connected with the spring fixing column 81 abuts against the first clamping piece 3 or the second clamping piece 4; that is, the first clamping piece 3 and the second clamping piece are fixed in the clamp by the spring, which is convenient to realize and can be disassembled.

[0038] Specifically, the specific number of groups of the spring assembly and the elasticity and rigidity of the spring can be flexibly adjusted according to actual needs, for example: for a larger battery, the number of groups of the spring assembly can be appropriately increased, or a spring with stronger elasticity and rigidity can be selected to press the first clamping piece 3 and the second clamping piece 4; this embodiment does not make specific limitations on this. However, it should be noted that in order to ensure the force balance and stability of the battery, no matter how many groups of spring assemblies are designed or which specification of spring is selected, the consistency in quantity and the symmetry in position of the spring assembly for pressing the first clamping piece and the spring assembly for pressing the second clamping piece need to be ensured; at the same time, the opposite spring assemblies adopt the same specification.

[0039] Further, the spring 82 is a damping spring, that is, when an external force is applied to the spring, the spring will deform and store energy, and this process is elastic; when the external force is removed, the spring will gradually return to the original state, and in the process of returning to the original state, the damper will prevent the spring from rebounding and consume the stored energy. This process is damping, which reduces the rebound speed and amplitude of the spring, thereby reducing the impact force and vibration.

[0040] With reference to Figure 2 , Figure 3A plurality of first connecting holes 10 are formed on the first clamping plate 1 and the second clamping plate 2, and each row of first connecting holes 10 is arranged at intervals along the length direction of the first clamping plate 1 or the second clamping plate 2; the connecting rod 5 is arranged through the first connecting holes 10 to connect the first clamping plate 1 and the second clamping plate 2.

[0041] Specifically, each row of first connecting holes is not less than two, when the number of each row of first connecting holes is two, the two first connecting holes are arranged at two ends of the first clamping plate or the second clamping plate respectively; when the number of each row of first connecting holes is more than two, two first connecting holes are arranged at two ends of the first clamping plate or the second clamping plate respectively, and other first connecting holes are arranged at intervals between the two first connecting holes.

[0042] Further, the connecting rod 5 is arranged through the first connecting holes of the first clamping plate 1 and the second clamping plate 2, and the first clamping plate and the second clamping plate are connected by means of bolt fixing, so as to provide a clamping space for subsequent first clamping plates 3, second clamping plates 4 and batteries.

[0043] With reference to Figure 3 , Figure 5 , a plurality of second connecting holes 11 are further formed on the first clamping plate 1 and the second clamping plate 2, the second connecting holes are used for corresponding to third connecting holes 16 on a tripod for fixing a clamp in a vibration simulator, and the clamp is fixed on the vibration simulator by means of bolt fixing, so as to prepare for subsequent simulation of whole vehicle road test vibration conditions, verification of battery appearance overall expansion and cell performance.

[0044] Embodiment two

[0045] With reference to Figure 4 , the embodiment provides a vibration simulator, which comprises a vibrator body 12, a vibration swing table 13 and a clamp, the vibrator body 12 and the vibration swing table 13 are integrated, and the vibrator body 12 is used for adjusting the vibration amplitude and frequency of the vibration swing table 13.

[0046] Specifically, the vibration swing table 13 is a platform for simulating a vehicle body, and the device can effectively transmit the vibration frequency and energy released by the vibrator body 12 to a test battery; the vibrator body 12 is driven by plug-in and internally provided with adaptive hardware / software and a synchronous adaptive shocker (not shown in the figure), and the shocker releases corresponding acting force through program operation. In the specific implementation process, an engineer inputs the actually collected road condition information into the program, so that the test environment under the corresponding road condition can be simulated. It should be noted that the shocker used in the utility model is common on the market, and the adaptive software and program internally provided in the vibrator body 12 are also existing, that is, the utility model does not involve improvement of the program.

[0047] With reference toFigure 5 A clamping fixture fixing platform 14 is fixed on the vibration swing table 13, and a fixing assembly for fixing the clamping fixture is arranged on the clamping fixture fixing platform 14.

[0048] Further, the fixing assembly has two groups, one of which is used for fixing the first clamping plate 1, and the other of which is used for fixing the second clamping plate 2; each group of the fixing assembly contains a plurality of tripods 15, and a plurality of third connecting holes 16 are formed in each tripod 15.

[0049] Specifically, in the embodiment, each group of the fixing assembly contains four tripods, and the positions of the third connecting holes 16 formed in each tripod 15 correspond to the positions of the second connecting holes 11 formed in the first clamping plate 1 and the second clamping plate 2.

[0050] With reference to Figure 4 The vibration simulator is fixed to the vibrator through the vibrator hole 19 formed in the bottom.

[0051] Based on the elastic force design of the test fixture, the stress of the Pack battery cell in the box environment and the stress of the single battery cell can be simulated, so that the expansion of the battery during the long-period charge-discharge test of the battery can be verified. Specifically, when the vibration simulator works, the vibrator body 12 adjusts the vibration amplitude and frequency of the vibration swing table 13, so that the vibration swing table 13 drives the fixing assembly to vibrate at the amplitude and frequency preset by the operator; then, the fixing assembly drives the battery on the clamping fixture to vibrate; because the spring for controlling the clamping and extrusion degree of the battery is stretchable, when the vibration simulator works, the spring stretches back and forth, and this stretching process drives the battery clamped thereby to shake, so as to simulate the real motion state of the battery under the whole vehicle road condition, that is, the natural vibration state of the battery under the whole vehicle road condition; after the simulation process is completed, the spring gradually returns to the static state under the action of the damper. Therefore, on the basis of firmly clamping the battery, the vibration condition of the whole vehicle road test can be simulated at different time stages of discharging the battery, the overall expansion of the battery appearance and the performance of the battery cell can be verified, the corresponding results can be obtained, so as to set the best extrusion condition for packing the battery cell. At the same time, after the battery is tested by the device, the influence of the battery vibration experiment on the internal structure of the battery cell under the whole vehicle road test can be obtained after professional failure analysis, so that corresponding measures can be taken in the development process of the battery cell according to the results, and the effect of improving the performance of the battery can be achieved. The clamping fixture for testing the charge-discharge performance of the battery in the vibration process can simulate the influence of the whole vehicle road test condition on the battery cell in advance, so as to predict in advance and reduce the risk of the whole vehicle road test.

[0052] The utility model discloses above although the specific embodiment of the utility model has been described in conjunction with the drawing, is not the limit to the protection scope of the utility model, and the person skilled in the art should understand that on the basis of the technical scheme of the utility model, various modifications or deformation that the person skilled in the art can make without paying creative labour are still within the protection scope of the utility model.

Claims

1. A fixture for detecting the charging and discharging performance of a battery during vibration, characterized in that, Includes a first clamping plate, a second clamping plate, a first clamping piece, and a second clamping piece; The first clamping plate and the second clamping plate are arranged opposite to each other and are fixedly connected by a connecting rod; the first clamping plate and the first clamping piece are fixedly connected by a spring assembly, and the second clamping plate and the second clamping piece are fixedly connected by a spring assembly. The first clip and the second clip are disposed opposite to each other and located between the first clamping plate and the second clamping plate; a battery position for placing a battery is formed between the first clip and the second clip, and a first buckle and a second buckle for preventing the battery from shifting are provided on the first clip and the second clip.

2. The fixture for detecting the charging and discharging performance of a battery during vibration, as described in claim 1, is characterized in that... The first buckle is elongated and located on the wide side of the first clip and the second clip. Specifically, two first buckles are provided on the wide side of each of the first clip and the second clip, and the two first buckles are located near the two ends of the wide side of their respective sides.

3. The fixture for detecting the charging and discharging performance of a battery during vibration, as described in claim 1, is characterized in that... The second buckle is elongated and located on the long side of the first clip and the second clip.

4. The fixture for detecting the charging and discharging performance of a battery during vibration, as described in claim 1, is characterized in that... The spring assembly is in multiple groups, and each group of spring assemblies includes a spring fixing post and a spring. One end of the spring fixing post passes through the first or second clamping plate and is fixed to the first or second clamping plate by a mechanical screw, while the other end is connected to the spring; the end of the spring not connected to the spring fixing post abuts against the first or second clamping plate.

5. A fixture for detecting the charging and discharging performance of a battery during vibration, as described in claim 1, characterized in that, Two rows of first connecting holes are provided on the first clamping plate and the second clamping plate, and each row of first connecting holes is spaced apart along the length direction of the first clamping plate or the second clamping plate; the connecting rod connects the first clamping plate and the second clamping plate by passing through the first connecting holes.

6. The fixture for detecting the charging and discharging performance of a battery during vibration, as described in claim 1, is characterized in that... Multiple sets of second connecting holes are also provided on the first and second clamping plates.

7. A vibration simulator, characterized in that, It includes a vibrator body, a vibrating pendulum table, and a clamp as described in any one of claims 1-6, wherein the vibrator body and the vibrating pendulum table are an integral structure; A clamp fixing platform is fixed on the vibrating swing table, and a fixing component is provided on the clamp fixing platform. The fixing component is used to fix the clamp.

8. A vibration simulator according to claim 7, characterized in that, The fixing components are in two sets, one set for fixing the first clamping plate and the other set for fixing the second clamping plate.

9. A vibration simulator according to claim 8, characterized in that, Each set of fixing components contains multiple tripods, and each tripod has multiple third connection holes.

10. A vibration simulator according to claim 9, characterized in that, The position of the third connecting hole on each tripod corresponds to the position of the second connecting hole on the first and second clamps.

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