Battery pack test safety device

Abstract

The utility model discloses a safety device for a battery pack test, which comprises a cooling box with an opening at the top, and the cooling box is filled with a cooling fire extinguishing agent; the battery pack tray can be overturned relative to the cooling box, so that the battery pack carried on the battery pack tray slides into the cooling box; the driving and supporting assembly is arranged below the battery pack tray and is used for supporting the battery pack tray and driving the battery pack tray to complete the overturning action; according to the battery pack test safety device provided by the utility model, when abnormal conditions such as smoking, fire and the like occur in the battery pack test experiment process, the battery pack tray can be controlled to turn over to enable the battery pack to quickly slide into the cooling box, and a cooling fire extinguishing agent in the cooling box is utilized to finish quick cooling and fire extinguishing of the battery pack, so that the cooling fire extinguishing effect is good; meanwhile, the driving supporting assembly arranged below the battery pack tray drives the battery pack tray to turn over, devices such as a winch do not need to be arranged at the far end, the overall structure compactness is good, and the occupied area can be reduced easily.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts production, specifically relates to a battery pack test safety device. BACKGROUND

[0002] In the production process of automobile battery pack, the battery pack needs to be tested for charging and discharging and cycle life. But in the process of testing the battery, it may cause abnormal conditions such as smoke, fire and even explosion of the battery pack due to internal short circuit, high temperature or aging and other factors. At present, the general way of safety prevention management is to equip with fire extinguishers, and there is no special battery pack test safety device on the market. However, since the fire of the battery pack is mainly caused by temperature out of control, it generally burns from the inside out, and the actual effect of the fire extinguisher on the battery pack is poor. In related technology, there is also a way to complete the cooling and fire extinguishing of the battery pack by equipping a cooling pool and remotely controlling the winch to pull the battery pack into the cooling pool when the battery pack is abnormal. However, the overall device needs to be arranged with a winch at a remote end, which occupies a large area and is not conducive to the arrangement in the laboratory.

[0003] Therefore, it is necessary to provide a new battery pack test safety device, so that when abnormal conditions such as smoke and fire occur during the battery pack test experiment, the battery pack can be quickly and effectively extinguished and cooled, and at the same time, it is compact and beneficial to reduce the occupied area. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model aims at providing a battery pack test safety device, which can quickly and effectively extinguish and cool the battery pack when abnormal conditions such as smoke and fire occur during the battery pack test experiment, and at the same time, it is compact and beneficial to reduce the occupied area.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a battery pack test safety device, comprising: a cooling box with an open top, the cooling box is provided with a cooling and fire extinguishing agent; a battery pack tray, the battery pack tray can be turned over relative to the cooling box so that the battery pack carried thereon falls into the cooling box; a driving support assembly arranged below the battery pack tray for supporting the battery pack tray and driving the battery pack tray to complete the turning over action.

[0006] Further, it further comprises a thrust mechanism, the thrust mechanism comprises a connecting sleeve for being fixedly installed on the wire harness of the battery pack in use and a first telescopic cylinder arranged on the connecting sleeve, and the telescopic end of the first telescopic cylinder faces the battery pack.

[0007] Further, the connecting sleeve comprises an upper half connecting sleeve and a lower half connecting sleeve which can be detachably connected with each other, and a gap is formed between the lower half connecting sleeve and the upper half connecting sleeve for the wire harness of the battery pack to pass through.

[0008] Further, a pull ring is fixed on the connecting sleeve.

[0009] Further, the battery pack tray comprises a supporting plate and a plurality of rollers arranged on the supporting plate.

[0010] Further, the supporting plate has a U-shaped structure.

[0011] Further, a connecting seat is fixedly connected to the outer side of the cooling box, and one end of the supporting plate is hingedly installed on the top of the connecting seat.

[0012] Further, a supporting plate for installing a driving support assembly is arranged on the lower part of the connecting seat, the driving support assembly comprises a second telescopic cylinder arranged on the supporting plate, and the supporting plate is supported on the telescopic end of the second telescopic cylinder.

[0013] Further, the driving support assembly further comprises a manual jack arranged on the supporting plate, and the supporting plate is supported on the jacking end of the manual jack.

[0014] Further, an auxiliary support assembly is further included, the auxiliary support assembly comprises at least two groups of supporting legs, and the battery pack tray is supported on the top of the supporting legs.

[0015] Compared with the prior art, the utility model has the beneficial effects as follows:

[0016] The battery pack test safety device provided by the utility model can make the battery pack quickly slide into the cooling box through the control of the battery pack tray overturning when abnormal conditions such as smoking and fire occur in the battery pack test process, the cooling extinguishing agent in the cooling box is used to complete the rapid cooling and fire extinguishing of the battery pack, the cooling and fire extinguishing effect is good, the driving support assembly arranged below the battery pack tray is used to drive the battery pack tray to overturn, the winch and other devices need not be arranged at the remote end, the overall structure is compact, and the land occupation area can be reduced.

[0017] Other advantages, objects and features of the utility model will be described in the subsequent specification to some extent, and to some extent, will be obvious to those skilled in the art based on the study of the following text or can be taught from the practice of the utility model. The objects and other advantages of the utility model can be realized and obtained through the following specification. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front view schematic diagram of one embodiment of the utility model

[0019] Figure 2 It is an axonometric view schematic diagram of one embodiment of the utility model

[0020] Figure 3The axial view schematic diagram of the battery pack test safety device in an embodiment of the utility model

[0021] Figure 4 The axial view schematic diagram of the connecting sleeve in an embodiment

[0022] The figure mark:1-cooling box;2-battery pack tray;201-supporting plate;202-roller;3-battery pack;301-wire harness;4-driving support assembly;401-second telescopic cylinder;402-hand-operated lifter;5-connecting sleeve;501-upper half connecting sleeve;502-lower half connecting sleeve;503-pull ring;6-first telescopic cylinder;7-connecting seat;8-supporting leg. DETAILED DESCRIPTION

[0023] The embodiment of the utility model is explained below through specific concrete examples, and the other advantages and effects of the utility model can be easily understood by the person skilled in the art from the content disclosed in the specification. The utility model can also be implemented or applied through other different specific embodiments, and each detail in the specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the utility model. It should be noted that the drawings provided in the following embodiments are only used to explain the basic concept of the utility model, and the following embodiments and the features in the embodiments can be combined with each other without conflict.

[0024] Please refer to Figures 1-4 In the embodiment, a battery pack test safety device is disclosed, which comprises a cooling box 1 with an open top, wherein the cooling box 1 is filled with cooling fire extinguishing agent; a battery pack tray 2, which can be flipped relative to the cooling box 1 so that the battery pack 3 carried thereon falls into the cooling box 1; and a driving support assembly 4 arranged below the battery pack tray 2 for supporting the battery pack tray 2 and driving the battery pack tray 2 to complete the flipping action. It can be understood that the cooling fire extinguishing agent can generally be cooling water, and the cooling box 1 can be filled with cooling water or can be used to immerse the battery pack 3; the cooling box 1 can be made of steel plate welding, which is not limited here; the driving support assembly 4 can be a cylinder, an electric telescopic cylinder, an electric supporting rod, etc., which is not limited here, as long as it can push the battery pack tray 2 to complete the flipping; after the battery pack tray 2 is flipped and tilted, the battery pack 3 can fall into the cooling box 1 under the action of gravity.

[0025] The battery pack test safety device in the structural design can make the battery pack 3 quickly slide into the cooling box 1 by turning over the battery pack tray 2 when abnormal conditions such as smoking and fire occur during the battery pack test, and the cooling and fire extinguishing effect is good by using the cooling fire extinguishing agent in the cooling box 1. At the same time, the overall structure is compact and good, and the land occupation area is reduced, without setting a winch device at a remote end by turning over the battery pack tray 2 through the driving support assembly 4 arranged below the battery pack tray 2.

[0026] In the embodiment, a thrust mechanism is further included, which includes a connecting sleeve 5 fixedly installed on a wire harness 301 of the battery pack 3 in use and a first telescopic cylinder 6 arranged on the connecting sleeve 5, and the telescopic end of the first telescopic cylinder 6 faces the battery pack 3. Specifically, the first telescopic cylinder 6 is preferably an electric telescopic cylinder and is fixedly connected to the connecting sleeve 5 by screw connection or the like. Of course, a gas cylinder or the like can be selected in other embodiments. It can be understood that the wire harness 301 of the battery pack 3 is a high-voltage wire harness, which is generally a relatively hard copper bar or the like, and the connecting sleeve 5 can be fixed on the wire harness 301 by clamping or the like. Since the wire harness 301 is generally connected to the battery pack 3 by a plug in the test, the thrust mechanism is arranged to push the battery pack 3 by controlling the first telescopic cylinder 6 when abnormal conditions such as fire and smoking occur, so that the wire harness 301 is disconnected from the battery pack 3, preventing the battery pack 3 from being unable to slide due to its own gravity or being blocked due to the wire harness 301 not being disconnected from the battery pack 3, and further improving the reliability and safety in use. Of course, it is conceivable that the thrust mechanism is generally arranged away from the cooling box 1 when designed, so as to provide a pushing force for the battery pack 3 to slide to the cooling box 1, which is beneficial to the sliding of the battery pack. In addition, the first telescopic cylinder 6 is designed as two and is fixedly installed on the upper and lower sides of the connecting sleeve 5, respectively, so as to apply a relatively balanced pushing force to the battery pack 3, avoid damaging the plug of the wire harness 301, and improve the accuracy and efficiency of disconnecting the wire harness 301 from the battery pack 3.

[0027] In the embodiment, the connecting sleeve 5 includes an upper half connecting sleeve 501 and a lower half connecting sleeve 502 which are detachably connected to each other, and a gap 5a for the wire harness 301 of the battery pack 3 to pass through is formed between the lower half connecting sleeve 501 and the upper half connecting sleeve 502. Specifically, the upper half connecting sleeve 501 and the lower half connecting sleeve 502 are fixedly connected by bolts. By designing the connecting sleeve 5 as the detachably connected upper half connecting sleeve 501 and lower half connecting sleeve 502, it is beneficial to disassembly and assembly, and it is beneficial to reliably clamp the wire harness 301 and ensure the installation reliability.

[0028] In the embodiment, the connecting sleeve 5 is provided with a pull ring 503, and it can be understood that the pull ring 503 can be designed as a plurality of pull rings; when the push mechanism fails or the battery pack 3 cannot be separated from the wire harness 301 even if the push mechanism is used, the wire harness can be manually separated by pulling the rope through the pull ring 503, which is beneficial to further improve the safety and reliability of use.

[0029] In the embodiment, the battery pack tray 2 includes a supporting plate 201 and a plurality of rollers 202 arranged on the supporting plate 201; it can be understood that the rollers 202 are rotatably arranged on the supporting plate; in the structure, the rollers can reduce the friction when the battery pack 3 slides, which is beneficial to ensure the smooth sliding of the battery pack 3 and reduce the risk of the battery pack 3 being stuck, and the structure can also be applied to the battery pack 3 with an uneven bottom surface.

[0030] In the embodiment, the supporting plate 201 has a U-shaped structure; the structure is simple and beneficial to the installation of the rollers 202; at the same time, in the design, the two side plates of the U-shaped structure can be designed to be higher, thereby forming a limit in the transverse direction of the battery pack 3 to prevent the battery pack 3 from sliding sideways to the ground.

[0031] In the embodiment, the cooling box 1 is fixedly connected with a connecting seat 7 on the outer side, and one end of the supporting plate 201 is hingedly installed on the top of the connecting seat 7; specifically, the connecting seat 7 is welded and fixed with the cooling box 1, and of course it can also be fixed by bolts; in the structure, the connecting seat 7 is arranged, and the supporting plate 201 is hingedly installed on the top of the connecting seat 7, which is beneficial to realize the overturning of the battery pack tray 2; at the same time, the wall thickness of the cooling box 1 does not need to be designed to be too thick, and the supporting plate 201 and the connecting seat 7 can be assembled first and then connected with the cooling box 1, which is beneficial to save manufacturing cost and improve structural reliability.

[0032] In the embodiment, the lower part of the connecting seat 7 is provided with a supporting plate 701 for installing a driving support assembly 4, and the driving support assembly 4 includes a second telescopic cylinder 401 arranged on the supporting plate 701, and the supporting plate 201 is supported on the telescopic end of the second telescopic cylinder 401; specifically, the supporting plate 701 is an integral structure with the connecting seat 7, the second telescopic cylinder 401 is an electric telescopic cylinder, and the electric telescopic cylinder is fixedly installed on the supporting plate 701; the supporting plate 701 is arranged, which is beneficial to provide a mounting position for the driving support assembly 4 and facilitate the installation of the driving support assembly 4 to ensure the structural reliability; the second telescopic cylinder 401 can lift the battery pack tray 2 to drive the battery pack tray 2 to complete the overturning, and the structure is simple and reliable.

[0033] In the embodiment, the driving support assembly 4 further comprises a manual jack 402 arranged on the support plate 701, and the tray 201 is supported on the lifting end of the manual jack 402; specifically, the manual jack 402 can be a jack, etc., and when the second telescopic cylinder 401 fails, the manual jack 402 can be manually operated to complete the overturning of the battery pack tray 2; which is conducive to further improving the use reliability and safety of the overall device.

[0034] In the embodiment, the auxiliary support assembly comprises at least two groups of support legs 8, and the battery pack tray 2 is supported on the top of the support legs 8; specifically, the support legs 8 are two groups, and are arranged at two corners of the battery pack tray 2 away from the cooling box 1; by arranging at least two groups of support legs 8, the support stability of the battery pack tray 2 is further improved; the support legs 8 can be designed as a height-adjustable structure to adapt to uneven bottom surfaces; in addition, the support legs 8 also pass through the support plate 701 and are fixed with the support plate 701, so that the overall structure has better stability.

[0035] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A battery pack test safety device, characterized by, The utility model relates to a battery cooling device, comprising: a top opening cooling box (1) with cooling extinguishing agent inside; a battery pack tray (2) which can be overturned relative to the cooling box (1) so that the battery pack (3) carried thereon falls into the cooling box (1); a driving support assembly (4) arranged below the battery pack tray (2) for supporting the battery pack tray (2) and driving the battery pack tray (2) to complete the overturning action.

2. The battery pack test safety device of claim 1, wherein: The utility model also comprises a thrust mechanism, which comprises a connecting sleeve (5) for being fixedly installed on a wire harness (301) of the battery pack (3) in use and a first telescopic cylinder (6) arranged on the connecting sleeve (5), wherein the telescopic end of the first telescopic cylinder (6) faces the battery pack (3).

3. The battery pack test safety device of claim 2, wherein: The connecting sleeve (5) comprises an upper half connecting sleeve (501) and a lower half connecting sleeve (502) which are detachably connected to each other, and a gap (5a) for the wire harness (301) of the battery pack (3) to pass through is formed between the upper half connecting sleeve (501) and the lower half connecting sleeve (502).

4. The battery pack test safety device of claim 3, wherein: A pull ring (503) is fixedly arranged on the connecting sleeve (5).

5. The battery pack test safety device of any one of claims 1-4, wherein: The battery pack tray (2) comprises a supporting plate (201) and a plurality of rollers (202) arranged on the supporting plate (201).

6. The battery pack test safety device of claim 5, wherein: The supporting plate (201) has a U-shaped structure.

7. The battery pack test safety device of claim 5, wherein: A connecting seat (7) is fixedly connected to the outer side of the cooling box (1), and one end of the supporting plate (201) is hingedly installed on the top of the connecting seat (7).

8. The battery pack test safety device of claim 7, wherein: A supporting plate (701) for mounting the driving support assembly (4) is arranged on the lower part of the connecting seat (7), and the driving support assembly (4) comprises a second telescopic cylinder (401) arranged on the supporting plate (701), and the supporting plate (201) is supported on the telescopic end of the second telescopic cylinder (401).

9. The battery pack test safety device of claim 8, wherein: The driving support assembly (4) further comprises a manual jack (402) arranged on the supporting plate (701), and the supporting plate (201) is supported on the jacking end of the manual jack (402).

10. The battery pack test safety device of any one of claims 1-4, wherein: The utility model also comprises an auxiliary support assembly, which comprises at least two groups of supporting legs (8), and the battery pack tray (2) is supported on the top of the supporting legs (8).

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