Battery thermal runaway test equipment

Abstract

The utility model provides a battery thermal runaway test device comprising a pedestal which comprises a right angle pedestal, a shielding plate and a pedestal; the right-angle base is arranged on the base, and the shielding plate is suspended above the right-angle base; the side closing plates are arranged on the two sides of the right-angle base respectively, the front closing plate is rotationally connected with the right-angle base, the front closing plate, the side closing plates and the right-angle base form a rectangular battery testing area, an anti-explosion plate is arranged at the top of the battery testing area, the anti-explosion plate and the shielding plate are distributed, and the shielding plate is arranged on the right-angle base. And the explosion-proof plate and the shielding plate are spaced to form a pressure relief area. According to the battery thermal runaway testing device, the battery testing area is sealed through the explosion-proof plate of the plug-in structure, shock waves, air pressure and flames in the battery testing area can be actively released in a directional mode, the influence of the shock waves is reduced, and therefore the safety of the battery thermal runaway testing device in the using process is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to battery thermal runaway test technical field especially relates to a battery thermal runaway test equipment. BACKGROUND

[0002] The root cause of battery thermal runaway is the positive feedback cycle of internal heat accumulation and chemical reaction, which leads to continuous temperature rise until runaway. The causes of battery thermal runaway include external impact or temperature change, etc. After the internal heat of the battery runs out of control, explosion or burning may occur.

[0003] During the high-temperature test of battery thermal runaway, the battery is usually placed in an independent space area and a higher environmental temperature is constructed by a heating device to analyze the relationship between battery thermal runaway and temperature. The independent space is mostly closed. After thermal runaway occurs, there is no release port for explosion or burning, which may cause damage to the battery thermal runaway test equipment and lead to safety accidents. SUMMARY

[0004] The utility model provides a kind of battery thermal runaway test equipment, to solve the problem that test equipment lacks release port during the high-temperature test of current battery thermal runaway, which may cause damage to the battery thermal runaway test equipment and lead to safety accidents.

[0005] The utility model is realized as follows: a kind of battery thermal runaway test equipment, comprising:

[0006] The base comprises a right-angle base, a shielding plate and a pedestal. The right-angle base is arranged on the pedestal, and the shielding plate is suspended above the right-angle base.

[0007] The side closing plate and the front closing plate are arranged on both sides of the right-angle base. The front closing plate is rotatably connected to the right-angle base. The front closing plate, the side closing plate and the right-angle base form a rectangular battery test area. The top of the battery test area is provided with an explosion-proof plate. The explosion-proof plate and the shielding plate are distributed. The explosion-proof plate and the shielding plate form a pressure relief area.

[0008] Preferably, the explosion-proof plate is connected to the side closing plate and the right-angle base by plug-in connection.

[0009] Preferably, the right-angle base is provided with a right-angle groove on both sides to accommodate the side closing plate. The side closing plate is clamped in the right-angle groove. The side closing plate and the right-angle base are connected by a detachable structure.

[0010] Preferably, a plurality of groups of screw holes are arranged on the right-angle groove. Locking bolts for fixation are arranged on the side closing plate. The side closing plate is assembled in the screw holes by the locking bolts.

[0011] Preferably, the end face parallel to the base of the right-angle base is a top face, and the top face is provided with a rear pressure relief plate for connecting the shielding plate, and the rear pressure relief plate is provided with a pressure relief slot hole.

[0012] Preferably, the explosion-proof plate is connected with the side closing plate and the right-angle base through a plurality of groups of plug-in units respectively.

[0013] Preferably, the plug-in unit comprises a plug-in column and a plug-in hole, the plug-in column is arranged on the end face of the explosion-proof plate close to the base, and the plug-in hole is distributed on the end face of the side closing plate and the right-angle base away from the base.

[0014] The plug-in column is provided with a plurality of groups of annular limiting protrusions distributed on the side of the plug-in column, and the plug-in hole is provided with a limiting groove matched with the limiting protrusion, and when the plug-in column is inserted into the plug-in hole, the limiting protrusion is clamped in the limiting groove.

[0015] Preferably, the front closing plate is provided with an explosion-proof observation window for observing the internal state of the battery test area.

[0016] Preferably, the side closing plate is provided with an explosion-proof observation window for observing the internal state of the battery test area.

[0017] Compared with the prior art, the embodiments of the application have the following beneficial effects:

[0018] The battery thermal runaway test equipment provided by the utility model closes the battery test area by using the explosion-proof plate of the plug-in structure, so that the shock wave, air pressure and flame of the battery test area can be actively released in a directional manner, the shielding plate provided outside the pressure relief area cooperates with the explosion-proof plate to shield the pressure relief gas, the shock wave is forced to change direction by using the turning and blocking, the influence of the shock wave is reduced, and therefore the safety during use of the battery thermal runaway test equipment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic view of a battery thermal runaway test equipment provided by the utility model.

[0020] Figure 2 is a front closing plate opening state structural schematic view of a battery thermal runaway test equipment provided by the utility model.

[0021] Figure 3 is an exploded structural schematic view of a battery thermal runaway test equipment provided by the utility model.

[0022] Figure 4 is a structural schematic view of a right-angle base of a battery thermal runaway test equipment provided by the utility model.

[0023] Figure 5 is a rotating seat and hinged seat structure schematic view of the battery thermal runaway test equipment provided by the utility model.

[0024] Figure 6 is a plug-in unit structure schematic view of the battery thermal runaway test equipment provided by the utility model.

[0025] Figure 7 is a plug-in column structure schematic view of the battery thermal runaway test equipment provided by the utility model.

[0026] Figure 8 is a A out structure partial enlarged schematic view of the battery thermal runaway test equipment provided by the utility model.

[0027] Mark explanation:

[0028] 100, base; 110, right-angle base; 1101, right-angle groove; 1102, top surface; 1103, front contact surface; 111, hinged seat; 112, rear pressure relief plate; 120, shielding plate; 130, base; 200, explosion-proof plate; 300, side closure plate; 400, front closure plate; 401, rotating seat; 501, plug-in column; 502, plug hole; 503, locking bolt. DETAILED DESCRIPTION

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application; the description and the drawings are to be regarded as illustrative in nature and are not intended to limit the application; the terminology used in the description and the claims of the present application and the above description of the drawings includes the terms specifically mentioned above as well as their derivatives.

[0030] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase that in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. As will be apparent to those of ordinary skill in the art, embodiments described herein can be combinable with other embodiments.

[0031] The utility model embodiment provides a kind of battery thermal runaway test equipment, as shown in Figures 1-8 The battery thermal runaway test equipment includes:

[0032] A base 100, the base 100 includes a right-angle base 110, a shielding plate 120 and a base 130; the right-angle base 110 is arranged on the base 130, and the shielding plate 120 is suspended above the right-angle base 110;

[0033] A side closing plate 300 and a front closing plate 400, the side closing plate 300 is arranged on both sides of the right-angle base 110, and the front closing plate 400 is rotationally connected with the right-angle base 110, the front closing plate 400 is provided with a rotating seat 401, the right-angle base 110 is provided with a hinged seat 111, and the rotating seat 401 and the hinged seat 111 are hingedly connected through a bolt column; the front closing plate 400, the side closing plate 300 and the right-angle base 110 form a rectangular battery test area, and a heating coil is arranged in the right-angle base 110, the heating coil serves to raise the ambient temperature in the battery test area, so that the test battery reaches a thermal runaway state, and the test temperature affects the thermal runaway state;

[0034] The battery test area is provided with an explosion-proof plate 200, the explosion-proof plate 200 is distributed with the shielding plate 120, and the interval between the explosion-proof plate 200 and the shielding plate 120 is a pressure relief area;

[0035] The front closing plate 400 is used as a battery placing entrance through a rotating connection mode, and after placing is completed, the front closing plate 400 is turned over and closed at the front end of the battery test area, and here the front closing plate 400 is mainly fixed and locked through bolts and the side closing plate 300;

[0036] The explosion-proof plate 200 is plug-connected with the side closing plate 300 and the right-angle base 110, and the specific mode is that the explosion-proof plate 200 is connected with the side closing plate 300 and the right-angle base 110 through a plurality of plug-in units respectively; the plug-in unit includes a plug-in column 501 and a plug hole 502, the plug-in column 501 is arranged on the end face of the explosion-proof plate 200 close to the base 130, and the plug hole 502 is distributed on the end face of the side closing plate 300 and the right-angle base 110 away from the base 130; a plurality of groups of annular limiting protrusions distributed on the side of the plug-in column 501 are arranged in the plug-in column 501, and a limiting groove matched with the limiting protrusion is arranged in the plug hole 502, when the plug-in column 501 is inserted into the plug hole, the limiting protrusion is clamped in the limiting groove;

[0037] In the embodiment, the explosion-proof plate 200 is directly contacted with the end face of the battery test area, and the plug-in mode is adopted, when the explosion occurs in the battery test area, the shock wave is quickly lifted after impacting the surrounding, the explosion-proof plate 200 is separated from the side closing plate 300 and the right-angle base 110, then the shock wave, the gas pressure and the flame are discharged from the gap between the shielding plate 120 and the battery test area, the momentum of the shock wave and the flame is weakened under the influence of the explosion-proof plate 200, and the shielding plate 120 intercepts the explosion-proof plate 200, so that the explosion-proof plate 200 is prevented from splashing and causing accidents;

[0038] In the embodiment, the explosion-proof plate 200 is directly contacted with the end face of the battery test area, and the plug-in mode is adopted, when the explosion occurs in the battery test area, the shock wave is quickly lifted after impacting the surrounding, the explosion-proof plate 200 is separated from the side closing plate 300 and the right-angle base 110, then the shock wave, the gas pressure and the flame are discharged from the gap between the shielding plate 120 and the battery test area, the momentum of the shock wave and the flame is weakened under the influence of the explosion-proof plate 200, and the shielding plate 120 intercepts the explosion-proof plate 200, so that the explosion-proof plate 200 is prevented from splashing and causing accidents;

[0039] As a preferred embodiment in the embodiment, the right-angle base 110 is provided with right-angle grooves 1101 accommodating the side closing plates 300, the side closing plates 300 are clamped in the right-angle grooves 1101, and the side closing plates 300 and the right-angle base 110 are connected through a detachable structure; a plurality of groups of screw holes are arranged on the right-angle grooves 1101, locking bolts 503 for fixation are arranged on the side closing plates 300, and the side closing plates 300 are assembled in the screw holes through the locking bolts 503;

[0040] In the embodiment, the side closing plates 300 are matched with the right-angle grooves 1101, and the side closing plates 300 and the right-angle base 110 adopt a detachable structure design, so that the damaged part cannot be replaced alone when the side closing plates 300 are damaged due to explosion;

[0041] As a preferred embodiment in the embodiment, the end face, parallel to the base 130, of the right-angle base 110 is a top face 1102, the top face 1102 is provided with a rear pressure relief plate 112 for connecting the shielding plate 120, and the rear pressure relief plate 112 is provided with pressure relief groove holes, which are also used for helping to release the shock wave;

[0042] In a further preferred embodiment of the utility model, the front closing plate 400 is provided with an explosion-proof observation window for observing the internal state of the battery test area, and the side closing plate 300 is provided with an explosion-proof observation window for observing the internal state of the battery test area;

[0043] In the embodiment, the explosion-proof observation window adopts a multi-layer vacuum explosion-proof window in the prior art, and the impact damage of a shock wave to the front sealing plate 400 and the side sealing plate 300 is reduced by the setting of the pressure relief area; and the service life of the explosion-proof observation window is prolonged.

[0044] It should be noted that, for the foregoing embodiments, in order to simply describe, they are all expressed as a series of action combinations, but those skilled in the art should know that the present application is not limited by the described action sequence, because according to the present application, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification all belong to preferred embodiments, and the actions and modules involved are not necessarily necessary for the present application.

[0045] The above embodiments are only used to illustrate the technical solutions of the present application, and do not limit the protection scope of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add or delete the features of the embodiments of the present application according to the circumstances without creative labor, so as to obtain different, but essentially not deviating from the concept of the present application. Other technical solutions, which also belong to the scope of protection of the present application.

Claims

1. A battery thermal runaway testing apparatus, comprising: The utility model relates to a battery test device, including: A base (100) including a right-angle base (110), a shielding plate (120) and a pedestal (130), the right-angle base (110) is arranged on the pedestal (130), and the shielding plate (120) is suspended above the right-angle base (110); Side closing plate (300) and front closing plate (400), the side closing plate (300) is divided and is arranged at the both sides of right-angle base (110), and the front closing plate (400) is rotatably connected with right-angle base (110), and the front closing plate (400), side closing plate (300) and right-angle base (110) form rectangular battery test area, the top of battery test area is equipped with explosion -proof plate (200), and the explosion -proof plate (200) is distributed with shielding plate (120), and the interval between explosion -proof plate (200) and shielding plate (120) is pressure relief area.

2. A battery thermal runaway testing apparatus as claimed in claim 1, wherein, The explosion -proof plate (200) is connected with the side closing plate (300) and the right-angle base (110) by inserting.

3. A battery thermal runaway testing apparatus as claimed in claim 2, wherein, Both sides of the right-angle base (110) are provided with right-angle groove (1101) containing the side closing plate (300), the side closing plate (300) is engaged in the right-angle groove (1101), and the side closing plate (300) is connected with the right-angle base (110) by detachable structure.

4. A battery thermal runaway testing apparatus as claimed in claim 3, wherein, A plurality of groups of screw holes are provided on the right-angle groove (1101), and the side closing plate (300) is provided with locking bolts (503) for fixing, and the side closing plate (300) is assembled in the screw holes by the locking bolts (503).

5. A battery thermal runaway testing apparatus as claimed in claim 4, wherein, The end face parallel to the pedestal (130) of the right-angle base (110) is a top surface (1102), the top surface (1102) is provided with a rear pressure relief plate (112) for connecting the shielding plate (120), and the rear pressure relief plate (112) is provided with a pressure relief slot hole.

6. A battery thermal runaway testing apparatus as claimed in claim 5, wherein, The explosion -proof plate (200) is connected with the side closing plate (300) and the right-angle base (110) by a plurality of groups of inserting units respectively.

7. A battery thermal runaway testing apparatus as claimed in claim 6, wherein, The inserting unit includes an inserting column (501) and a jack (502), the inserting column (501) is arranged on the end face of the explosion -proof plate (200) close to the pedestal (130), and the jack (502) is distributed on the end face of the side closing plate (300) and the right-angle base (110) away from the pedestal (130); A plurality of groups of annular limiting protrusions distributed on the circumferential side of the inserting column (501) are arranged in the inserting column (501), and the jack (502) is provided with a limiting groove matched with the limiting protrusion, and when the inserting column (501) is inserted into the jack, the limiting protrusion is engaged in the limiting groove.

8. A battery thermal runaway testing apparatus as claimed in claim 7, wherein, The front closing plate (400) is provided with an explosion -proof observation window for observing the internal state of the battery test area.

9. A battery thermal runaway testing apparatus as claimed in claim 8, wherein, The side closing plate (300) is provided with an explosion -proof observation window for observing the internal state of the battery test area.

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