Soaking test device for empty battery Pack box

Abstract

The utility model discloses a soaking test device for an empty battery Pack box. The soaking test device comprises a lifting hook, a hoisting tool, a soaking water tank and two steel wire ropes, the bottoms of the two sides of the soaking water tank are each provided with two fixed pulleys, steel wire rope fixing tools are arranged at the four corners of the bottom of the empty battery Pack box, the lifting hook is connected with the center of the lifting tool, the centers of the two steel wire ropes are placed on the lifting tool at intervals, and the two ends of the steel wire ropes penetrate through the opposite fixed pulleys on the two sides respectively. And the steel wire rope fixing tool is connected to the bottom of the empty battery Pack box. And under the condition that the shell is not stressed without damage, the buoyancy influence of the battery Pack box is overcome, and the soaking test of the empty battery Pack box is realized.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of immersion test, and relates to a kind of empty battery Pack box immersion test device. BACKGROUND

[0002] GB / T21437 requires that the waterproof level of electric vehicle reaches IP67 or higher, and the electric vehicle has wading operation condition.So the battery box of electric vehicle must use complete battery box to carry out immersion test.

[0003] GB / T36276 does not require waterproof level for lithium ion battery Pack used for power storage.In actual engineering project, lithium ion battery Pack used for power storage originally has air-cooled and water-cooled two schemes.For battery Pack box of liquid-cooled scheme, combined with the application of Pack-level perfluorohexanone gas fire-fighting scheme, battery Pack box can be made into IPX7 level to achieve better fire-fighting protection effect.

[0004] At present, when carrying out immersion test for power storage battery Pack box, complete battery Pack box filled with battery cells is usually used for test.The cost of complete battery Pack box filled with battery cells is high, and if immersion test fails, it will cause large battery cell loss.If discarded battery cells are used, immersion test failure may also cause pollution of experimental water.Further, sewage treatment cost needs to be increased, and random discharge will also cause environmental pollution.

[0005] If empty Pack box is used for test, high Pack sample cost can be saved, and environmental pollution risk that may occur is also avoided.But when empty battery Pack box is used for immersion test, its self-weight is much smaller than the buoyancy received.Presser is used to press empty Pack box downward, and Pack box upper cover is damaged. UTILITY MODEL CONTENTS

[0006] The utility model aims at overcoming the shortcomings of the prior art, and provides a kind of empty battery Pack box immersion test device, under the condition that shell is not damaged by force, the influence of battery Pack box buoyancy is overcome, and empty battery Pack box immersion test is realized.

[0007] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0008] A kind of empty battery Pack box immersion test device, including lifting hook, hoisting tool, immersion water tank and two steel wires;

[0009] Two fixed pulleys are arranged on the bottom of the two sides of the soaking sink, steel wire rope fixing tools are arranged on the four corners of the bottom of the empty battery Pack box, a lifting hook is connected to the center of the lifting tool, two steel wire ropes are placed on the lifting tool at the center and are spaced apart, the two ends of the steel wire ropes are respectively threaded through the opposite fixed pulleys on the two sides, and the steel wire ropes connected to the bottom of the empty battery Pack box are fixed on the steel wire rope fixing tools.

[0010] Preferably, the lifting tool is a rod-shaped structure, and a hanging ear is arranged at the center, and the lifting hook is connected by penetrating the hanging ear and the lifting tool.

[0011] Further, protrusions are arranged at the two ends of the lifting tool, and the two steel wire ropes are located between the two protrusions.

[0012] Further, protrusions are arranged at the two ends of the lifting tool, and the two steel wire ropes are located between the two protrusions.

[0013] Preferably, the two ends of the steel wire rope are provided with a hanging buckle, and the steel wire rope fixing tool adopts a hanging ring.

[0014] Preferably, steel wire rope hangers are arranged on the side walls on the two sides of the soaking sink.

[0015] Preferably, an electric hoist is connected to the top of the lifting hook.

[0016] Preferably, a sink steel frame base is arranged at the bottom of the soaking sink.

[0017] Preferably, two bottom channel steels are fixed on the two sides of the bottom of the soaking sink, and the fixed pulleys are arranged on the bottom channel steels.

[0018] Further, the legs of the sink steel frame base adopt length-adjustable rods.

[0019] Preferably, the empty battery Pack box comprises a battery Pack box liquid cooling bottom plate and a battery Pack box upper shell connected in a sealed manner, the battery Pack box liquid cooling bottom plate is located at the bottom of the battery Pack box upper shell, and the steel wire rope fixing tools are located at the four corners of the bottom of the battery Pack box liquid cooling bottom plate.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] The utility model discloses a empty battery Pack box is used to carry out the water immersion test, avoids the huge test cost caused by using the complete battery Pack box, is not caused structural damage to the empty battery Pack box when being used to the water immersion test of empty battery Pack box. The water immersion test device cleverly utilizes the lifting hole (liquid cooling bottom plate edge opening) of the four arounds of Pack box, and through the lifting hook, pulley, steel wire rope and other simple and easy accessories, the upward lifting tension is converted into the downward traction, and is used to overcome the Pack box buoyancy. Due to the lifting hole of the four arounds of Pack box, the original design strength is enough to lift 350kg deadweight (3430N). Therefore, when being subjected to the downward traction (about 2793N), structural damage is not caused, and the waterproof test performance is not affected, unnecessary complex operation is not needed, and the water immersion performance test of the empty box of other products is also widely applicable, and the water in the water immersion tank can be repeatedly used, which shortens the test time and reduces unnecessary waste of electric energy and water resources. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the water immersion test device structure schematic drawing of empty battery Pack box of the utility model,

[0023] Figure 2 It is the water immersion test device plan view of empty battery Pack box of the utility model,

[0024] Figure 3 It is the longitudinal section B-B of the utility model, Figure 2 And the enlarged view of A,

[0025] Figure 4 It is the longitudinal section A-A of the utility model, Figure 3

[0026] Figure 5 It is the state schematic drawing of the sample to be tested of the utility model,

[0027] Figure 6 It is the front view of the sample to be tested of the utility model,

[0028] Wherein: 1-lifting hook, 2-lifting tool, 3-water immersion tank, 4-steel wire rope hanger, 5-steel wire rope, 6-steel wire rope fixing tool, 7-fixed pulley, 8-bottom channel steel, 9-battery Pack box liquid cooling bottom plate, 10-water tank steel frame base, 11-battery Pack box upper shell. DETAILED DESCRIPTION

[0029] ​The embodiments of the present application will be described in detail below with reference to the drawings, examples of which are shown in the drawings, wherein the same or similar components are denoted by the same or similar reference numerals throughout. The embodiments described below by reference to the drawings are exemplary only, and are merely intended to explain the present application, and should not be construed to limit the present application.

[0030] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be construed as limiting the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified.

[0031] 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 the present application belongs. The terms "mounting", "connected", "connection" should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection or can communicate with each other; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. The term "and / or" used herein includes any and all combinations of one or more related listed items. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments, and are not intended to limit the present application.

[0032] The disclosure below provides many different implementations or examples to implement different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are only examples and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to numbers and / or letters in different examples, and such repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those skilled in the art can realize that other products can be used in the implementation of the water immersion test.

[0033] As shown in Figures 1-4 The water immersion test device for the battery Pack box of the present application comprises a lifting hook 1, a lifting tool 2, a water immersion tank 3, a steel wire rope hanging rack 4, a steel wire rope 5, a steel wire rope fixing tool 6, a fixed pulley 7, a bottom channel steel 8, a battery Pack box liquid cooling bottom plate 9, a water tank steel rack base 10, and a battery Pack box upper shell 11.

[0034] The battery Pack box liquid cooling bottom plate 9 and the battery Pack box upper shell 11 constitute a closed battery Pack box, which serves as a test sample. The battery Pack box liquid cooling bottom plate 9 is located at the bottom of the battery Pack box upper shell 11. The battery Pack box liquid cooling bottom plate 9 is provided with a steel wire rope fixing tool 6 at each of the four corners at the bottom.

[0035] The lifting hook 1, the lifting tool 2, and the steel wire rope 5 are connected. The top of the lifting hook 1 can be connected with an electric hoist. The electric hoist controls the lifting and sinking of the battery Pack box, and provides power for the water movement of the battery Pack box.

[0036] The lifting tool 2 is a rod-shaped structure arranged front and back. The lifting tool 2 is provided with a hanging ear at the center. The lifting hook 1 is connected by passing through the hanging ear and the lifting tool 2. The lifting tool 2 is provided with a protrusion at both ends. The two steel wire ropes 5 are located between the two protrusions, preventing the steel wire ropes 5 from detaching from the lifting tool 2.

[0037] In this embodiment, a limiting groove is provided on the protrusion. The two steel wire ropes 5 are placed in the limiting groove. The limiting groove prevents the steel wire ropes 5 from sliding axially along the lifting tool 2.

[0038] The two bottom channel steels 8 are fixedly connected to the left and right sides of the bottom of the water immersion tank 3. Two fixed pulleys 7 are arranged on each bottom channel steel 8 at intervals.

[0039] The two ends of the steel wire rope 5 pass horizontally through the two opposite fixed pulleys 7 and are then connected to two steel wire rope fixing fixtures 6 at the bottom of the liquid-cooled base plate 9 of the battery pack box. The two steel wire ropes 5 are set in parallel. In order to facilitate the replacement of empty battery pack boxes, both ends of the steel wire rope 5 can be equipped with hooks. The steel wire rope fixing fixtures 6 adopt hanging rings. The speed of connection and disassembly is improved by the cooperation of hooks and hanging rings.

[0040] Steel wire rope racks 4 are installed on both sides of the immersion tank 3. When no immersion test is performed, the ends of the steel wire ropes 5 are placed or hung on the steel wire rope racks 4 for easy access next time.

[0041] The spacing between the two protrusions of the hoisting fixture 2, the spacing between the two fixed pulleys 7 on the bottom channel steel 8, and the spacing between the two wire rope fixing fixtures 6 on the same side of the bottom of the liquid-cooled base plate 9 of the battery pack box are equal.

[0042] The fixed pulley 7 converts the upward tension of the hoisting wire rope 5 into a downward tension on the liquid-cooled base plate 9 of the battery pack box, in order to overcome the buoyancy of the water on the empty battery pack box.

[0043] Before the immersion test, the steel frame base 10 of the water tank is suspended and placed at the bottom of the immersion tank 3. The legs of the steel frame base 10 are equipped with four-position length adjustment rods, and the height is adjustable in four positions, ranging from 30cm to 70cm. By adjusting the height of the steel frame base 10, it can accommodate empty battery packs of different sizes, ensuring that the liquid-cooled base plate 9 of the battery pack can be immersed in water for at least 1m. The upper surface of the steel frame base 10 is 20cm higher than the upper surface of the bottom channel steel 8, ensuring that after the liquid-cooled base plate 9 of the battery pack is placed on the steel frame base 10, the steel wire rope 5 can still exert sufficient tension on the liquid-cooled base plate 9 of the battery pack.

[0044] In practice, the empty battery pack box must first be transferred to the surface of the immersion tank 3. This transfer to the immersion tank 3 will utilize additional tooling and fixtures.

[0045] The implementation details are irrelevant to the core of this utility model and will not be described in detail.

[0046] After the empty battery pack is transferred to the water surface of the immersion tank 3, two steel wire ropes 5 are used to secure the liquid-cooled base plate 9 of the battery pack by connecting four steel wire rope fixing fixtures 6 at each end. The steel wire ropes 5 are hung horizontally on the lifting fixture 2 and can be adjusted left and right to maintain balance.

[0047] Remove empty battery pack and transfer tool

[0048] The empty battery pack floats on the water surface in the immersion tank 3. The hook 1 is slowly raised, so that the empty battery pack overcomes the buoyancy of the water under the action of downward pull and slowly enters the water.

[0049] The empty battery Pack box is finally landed on the water tank steel frame base 10 under the action of downward pulling force, as shown in Figure 5 and Figure 6 The liquid cooling bottom plate 9 of the battery Pack box is not less than 1m away from the water surface of the water tank 3 at this time.

[0050] When the water immersion time is greater than 30min according to the IPX7 test requirement, the water immersion test is completed. The hook 1 can be slowly lowered, and the empty battery Pack box is gradually floated to the water surface under the action of buoyancy.

[0051] During the whole water immersion test, no other external force appliance is used to exert mechanical force on the upper shell 11 of the battery Pack box, which will not affect the structure and waterproof performance. No drainage and water injection operation is needed in the water tank 3 before and after the water immersion test, which saves the test time, electric energy and water resources.

[0052] In addition, the device adjusts the pulling force direction, and is also suitable for the water immersion test of the test sample with self weight sufficient to overcome the water buoyancy after installing the hanging device mesh plate. Such conventional test has no technical difficulty and is irrelevant to the core of the utility model, and is not described in detail.

[0053] The empty battery Pack box water immersion test device independently developed by the utility model grasps the core elements of the battery Pack box water immersion test, uses the empty battery Pack box for water immersion test, avoids the huge test cost caused by the use of complete battery Pack box, overcomes the influence of the battery Pack box buoyancy under the condition that the shell is not damaged, and realizes the water immersion test. The test device is realized by using the simplest, easily obtained and cheap accessories, and does not need complex operation, and is also widely suitable for the empty box water immersion performance test of other products. The water in the water tank 3 can be repeatedly used, the test time is shortened, and unnecessary electric energy and water resource waste is reduced. The device is also suitable for IPX7 and IPX8 water immersion test of various products.

[0054] The above-mentioned sequence numbers of the embodiments of the application are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0055] In the above-mentioned embodiments of the application, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0056] In several embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other manners. The described embodiments of the device are merely illustrative, for example, the division of the units can be different, and each unit can be integrated or can not be integrated. For example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, and can be electrical or other forms.

[0057] The units described as separated components can or can not be physically separated, and the components displayed as units can or can not be physical units, i.e., can be located in one place or can be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purposes of the embodiments of the present application.

[0058] The above description is merely preferred embodiments of the present application, and it should be pointed out that, for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should be considered as the protection scope of the present application.

[0059] It should be understood that the above description is for illustration only and is not intended to be limiting. Many embodiments and many applications other than those described herein will be readily apparent to those skilled in the art from this description. The scope of the application should therefore not be determined with reference to the above description, but should instead be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are incorporated by reference for all purposes. The omission of any aspect of the subject matter disclosed herein is not a disclaimer of such subject matter, nor should it be construed as a disavowal of such subject matter unless it is explicitly disclaimed.

Claims

1. An air battery Pack tank flooding test device characterized by comprising: The hook (1), the lifting tool (2), the water immersion tank (3) and two steel wires (5) are included. The water immersion tank (3) is provided with two fixed pulleys (7) on the bottom of both sides, the steel wire fixing tool (6) is arranged at the bottom of the four corners of the empty battery Pack box, the hook (1) is connected to the center of the lifting tool (2), the two steel wires (5) are placed on the lifting tool (2) at the center, the two ends of the steel wire (5) pass through the opposite fixed pulleys (7) on both sides, and the steel wire fixing tool (6) is connected to the bottom of the empty battery Pack box.

2. The electrically empty battery Pack flooding test device according to claim 1, characterized by, The lifting tool (2) is a rod-shaped structure, and the center is provided with an ear hook.

3. The electrically empty battery Pack flooding test device of claim 2, wherein, The lifting tool (2) is provided with a protrusion at both ends, and the two steel wires (5) are located between the two protrusions.

4. The electrically empty battery Pack flooding test apparatus according to claim 2, characterized by, The lifting tool (2) is provided with a protrusion at both ends, and the two steel wires (5) are located between the two protrusions.

5. The electrically empty battery Pack flooding test device of claim 1, wherein, The lifting tool (2) is provided with a protrusion at both ends, and the two steel wires (5) are located between the two protrusions.

6. The electrically empty battery Pack flooding test device of claim 1, wherein, The lifting tool (2) is provided with a protrusion at both ends, and the two steel wires (5) are located between the two protrusions.

7. The electrically empty battery Pack flooding test device of claim 1, wherein, The lifting tool (2) is provided with a protrusion at both ends, and the two steel wires (5) are located between the two protrusions.

8. The electrically empty battery Pack flooding test device of claim 1, wherein, The hook (1) is connected with an electric hoist at the top.

9. The electrically empty battery Pack flooding test apparatus according to claim 8, characterized by, The water immersion tank (3) is provided with a tank steel frame base (10) at the bottom, two bottom channel steels (8) are fixed at the bottom of the water immersion tank, and the fixed pulleys (7) are arranged on the bottom channel steels (8).

10. The electrically empty battery Pack flooding test device of claim 1, wherein, The legs of the water tank steel frame base (10) adopt length adjusting rods. The empty battery Pack box includes a battery Pack box liquid cooling bottom plate (9) and a battery Pack box upper shell (11) connected in a sealed manner, the battery Pack box liquid cooling bottom plate (9) is located at the bottom of the battery Pack box upper shell (11), and the steel wire fixing tool (6) is located at the bottom of the four corners of the battery Pack box liquid cooling bottom plate (9).

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