Multifunctional testing integrated device for battery pack

Abstract

The utility model provides a battery pack multifunctional test one-piece device, including pool main part, waterproof mechanism, seawater soaking mechanism and sealing failure test mechanism, wherein the waterproof mechanism includes mobile platform and mobile slider, the mobile slider and the mobile platform are in sliding connection, and the battery pack is connected to the mobile slider; the seawater soaking mechanism comprises a soaking solution, a concentration meter and a driving mechanism, the driving mechanism is connected with the moving platform and controls the moving platform to ascend or descend in the pool main body, the soaking solution is arranged in the pool main body, and the concentration meter is arranged on the pool main body; the sealing failure mechanism comprises a conductivity instrument, and the conductivity instrument is arranged in the pool main body. According to the utility model, the integration of waterproof test, seawater immersion test and sealing failure test of the battery pack can be realized, the equipment cost is greatly reduced, and the test requirements are met.

Description

Technical Field

[0001] The utility model belongs to the technical field of new energy, and in particular relates to a multifunctional integrated test device for a battery pack. Background Art

[0002] With the popularity of new energy vehicles, the evaluation and measurement of battery pack safety performance is indispensable. The existing equipment cannot meet the actual needs and the following problems arise in the existing actual testing process:

[0003] 1. The internal volume of new energy samples (such as battery packs) is too large and the weight is insufficient, which will cause the battery packs to float and suspend during the water immersion process, resulting in the battery packs failing to reach the test depth. The existing alternative operation is to add counterweights to the battery packs to force them to sink to the bottom, which will cause stress on the battery pack shell and ears, affecting the test results.

[0004] 2. The connector of the battery pack is located at the bottom of the battery pack. If the battery pack is directly immersed in water and sinks to the bottom, the connector of the battery pack will be damaged in the water, affecting the test results.

[0005] 3. During the seal failure test, the battery pack needs to be immersed in salt water for 30 minutes, then the battery pack is taken out of the water and left to stand for 1 hour; immersed again for 30 minutes, taken out and left to stand for 24 hours. According to the existing test method, it is necessary to repeatedly move and hoist the crane, but the crane cannot suspend the sample in the air for a long time, which is very inconvenient. In addition, the seal failure test is prone to fire risks during the static process of the battery pack. The existing method is to operate the hoisting equipment to drop the battery pack into the pool during the fire process, which poses a safety risk.

[0006] 4. The seawater immersion test requires a brine concentration of 3.5%. In the existing brine preparation process, water is first added, then salt is added, and finally manual stirring is performed to dissolve the salt. This process is not only time-consuming but also laborious.

[0007] The problems generated in the above actual testing process need to be solved one by one, and the test efficiency is low. Therefore, it is particularly important to design an integrated testing device that can solve the above problems at the same time. Utility Model Content

[0008] In view of the above technical problems, the utility model provides a multifunctional integrated test device for a battery pack, including a water pool body, a waterproof mechanism, a seawater immersion mechanism and a sealing failure test mechanism, wherein:

[0009] The waterproof mechanism includes a mobile platform and a mobile slider, wherein the mobile slider is slidably connected to the mobile platform, wherein the battery pack is connected to the mobile slider;

[0010] The seawater immersion mechanism includes an immersion liquid, a concentration meter and a driving mechanism, wherein the driving mechanism is connected to a mobile platform to control the mobile platform to rise or fall in the water pool body, the immersion liquid is arranged in the water pool body, and the concentration meter is arranged on the water pool body;

[0011] The seal failure mechanism includes a conductivity meter, wherein the conductivity meter is disposed within the pool body.

[0012] Furthermore, the length of the mobile platform is smaller than the length of the inner wall of the pool body, and the width of the mobile platform is smaller than the width of the inner wall of the pool body.

[0013] Furthermore, a through hole is provided on the mobile platform, and the mobile slider is located in the through hole and is slidably connected to the mobile platform.

[0014] Furthermore, the two opposite side walls of the through hole are provided with grooves, the two opposite side walls of the movable slider are provided with protrusions, and the protrusions on the two opposite side walls of the movable slider are respectively installed in the two grooves on the two opposite side walls of the through hole.

[0015] Furthermore, the movable slider is provided in plurality, and there is a gap between each of the movable sliders.

[0016] Furthermore, a side wall of the pool body is provided with a drain outlet and a water inlet, and the water inlet is arranged above the drain outlet.

[0017] Furthermore, the driving mechanism includes a plurality of driving components, and the driving components include a motor, a steel cable and a steering rod, wherein:

[0018] The motor is arranged outside the pool body;

[0019] The steering rod is arranged outside the main body of the pool, and a fixed pulley is arranged on the top of the steering rod;

[0020] One end of the steel cable is wound around a fixed pulley and wound around a rotating disk connected to an output end of a motor, and the other end of the steel cable is connected to a moving slide.

[0021] Furthermore, the concentration meter is a salt concentration meter.

[0022] Furthermore, a liquid level meter is provided on the water pool body.

[0023] The utility model provides a battery pack multifunctional integrated test device, which uses a waterproof mechanism, a seawater immersion mechanism and a sealing failure test mechanism, and avoids the connector position at the bottom of the battery pack by sliding a movable slider. The concentration of the salt water is displayed by a concentration meter (i.e., a salt concentration meter) in the seawater immersion mechanism, and the conductivity of the salt water is displayed by a conductivity meter in the sealing failure test mechanism, so that the battery pack waterproof test, seawater immersion test and sealing failure test are integrated, which greatly reduces the equipment cost and meets the test requirements.

[0024] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic structural diagram of a multifunctional integrated test device for a battery pack according to an embodiment of the utility model is shown.

[0027] Figure 2 A top view of a moving slide according to an embodiment of the utility model is shown. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] like Figure 1 As shown, the utility model provides a multifunctional integrated test device for a battery pack, including a water pool body 1, a waterproof mechanism, a seawater immersion mechanism (for seawater immersion test of the battery pack) and a sealing failure test mechanism (for sealing failure test of the battery pack).

[0030] The waterproof mechanism includes a mobile platform 2 and a mobile slider 4 (see Figure 2), the movable slider 4 is slidably connected to the movable platform 2, wherein the battery pack 3 is connected to the movable slider 4.

[0031] The seawater immersion mechanism includes an immersion liquid, a concentration meter 6 and a driving mechanism, wherein the driving mechanism is connected to the mobile platform 2 to control the mobile platform 2 to rise or fall in the pool body 1, the immersion liquid is arranged in the pool body 1, and the concentration meter 6 is arranged on the pool body 1, wherein the concentration meter 6 is a salt concentration meter and the immersion liquid is salt water.

[0032] Wherein, the sealing failure mechanism comprises a conductivity meter 8 , wherein the conductivity meter is arranged in the pool body 1 .

[0033] The utility model is described in detail below.

[0034] In some embodiments of the utility model, a side wall of the pool body 1 is provided with a drain port 9 and a water inlet 10, and the water inlet 10 is arranged above the drain port 9. The pool body 1 is also provided with a liquid level meter 7, which is used to measure the liquid level in the pool body 1.

[0035] Therefore, water can be injected through the water inlet 10, and the liquid level meter 7 can be observed to increase the liquid level to the required test height, and then stop injecting water. In addition, the liquid in the pool body 1 can also be released by opening the drain port 9 as needed.

[0036] In some embodiments of the present invention, the length of the mobile platform 2 is less than the length of the inner wall of the pool body 1, and the width of the mobile platform 2 is less than the width of the inner wall of the pool body 1. Thus, the mobile platform 2 can be lifted or lowered in the pool body 1, thereby realizing the reciprocating motion of the mobile platform.

[0037] In some embodiments of the utility model, the mobile platform 2 is provided with a through hole, the mobile slider 4 is located in the through hole and is slidably connected to the mobile platform 2, wherein the sliding connection is as follows: grooves are provided on the two opposite side walls of the through hole, convex blocks are provided on the two opposite side walls of the mobile slider 4, and the convex blocks on the two opposite side walls of the mobile slider 4 are respectively installed in the two grooves on the two opposite side walls of the through hole. There are multiple mobile sliders 4, and there is a gap between each of the mobile sliders 4.

[0038] Therefore, the battery pack 3 is placed on the movable slider 4 and can be fixed on the movable slider 4 by a rope, that is, the rope can be wrapped around the hanging ear of the battery pack 3 to fix the battery pack 3 on the movable slider 4. If the connector of the battery pack 3 is located at the bottom, the gap between the movable sliders 4 can be adjusted to avoid the position of the connector. At this time, the battery pack 3 sample can be fixed.

[0039] In some embodiments of the present invention, the driving mechanism includes a plurality of driving components, and the driving components include a motor 11, a steel cable 13 and a steering rod 12, wherein:

[0040] The motor 11 is arranged outside the pool body 1; the steering rod 12 is arranged outside the pool body 1, and a fixed pulley 5 is provided on the top of the steering rod 12; one end of the steel cable 13 is wound around the fixed pulley 5 and wound around the rotating disk connected to the output end of the motor 11, and the other end of the steel cable 13 is connected to the moving slide.

[0041] Therefore, the motor 11 (exemplarily, the motor can be a servo motor) rotates forward, and the mobile platform 2 is controlled to move downward through the steel cable 13 and the fixed pulley 5. After it reaches the specified test depth, it stops descending and the test begins.

[0042] If seawater immersion test or seal failure test is required, add pure salt, then control the motor 11 to rotate forward and reverse, and drive the mobile platform 2 to move up and down through the steel cable 13 and the fixed pulley 5. After several reciprocating cycles, observe the salt concentration meter (seawater immersion test) and the conductivity meter (seal failure test) to see whether the test required salt concentration or conductivity is reached. If not, repeat the above steps.

[0043] After the test time is completed, the motor 11 is controlled to reverse, and the mobile platform 2 is controlled to move upward through the steel cable 13 and the fixed pulley 5. When it is raised to the same height as the pool body 1, the lifting is stopped.

[0044] In summary, the utility model uses a servo motor and chain drive control method (i.e., the method adopted by the driving mechanism) to move the platform 2 so that the battery pack 3 reaches the required test depth, thereby solving the problem of the battery pack shell and the ear being stressed and affecting the test results. By adjusting the spacing of the movable slider 4 to avoid the position of the connector at the bottom of the battery pack 3, the problem of the battery pack connector being damaged in the water and affecting the test results is solved. The mobile platform 2 is controlled by a servo motor and chain drive to replace the manual approach to operate the mobile crane to move left and right, thereby solving the problem of safety risks; the mobile platform 2 is controlled by a servo motor and chain drive to repeatedly move up and down during the preparation of the salt water, thereby playing a role of rolling up and down stirring, thereby solving the problem of manual stirring to dissolve the salt, which is not only time-consuming but also laborious.

[0045] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A multifunctional integrated battery pack test device, characterized in that: It comprises a pool body (1), a waterproof mechanism, a seawater immersion mechanism and a sealing failure testing mechanism, wherein: The waterproof mechanism comprises a mobile platform (2) and a mobile slider (4), wherein the mobile slider (4) is slidably connected to the mobile platform (2), wherein the battery pack (3) is connected to the mobile slider (4); The seawater immersion mechanism comprises an immersion liquid, a concentration meter (6) and a driving mechanism, wherein the driving mechanism is connected to the mobile platform (2) to control the mobile platform (2) to be lifted or lowered in the pool body (1), the immersion liquid is arranged in the pool body (1), and the concentration meter (6) is arranged on the pool body (1); The seal failure mechanism comprises a conductivity meter (8), wherein the conductivity meter is arranged in the pool body (1).

2. A battery pack multifunctional testing integrated device according to claim 1, characterized in that: The length of the mobile platform (2) is smaller than the length of the inner wall of the pool body (1), and the width of the mobile platform (2) is smaller than the width of the inner wall of the pool body (1).

3. A battery pack multifunctional testing integrated device according to claim 2, characterized in that: The mobile platform (2) is provided with a through hole, and the mobile slider (4) is located in the through hole and is slidably connected to the mobile platform (2).

4. A battery pack multifunctional testing integrated device according to claim 3, characterized in that: The two opposite side walls of the through hole are provided with grooves, the two opposite side walls of the movable slider (4) are provided with protrusions, and the protrusions on the two opposite side walls of the movable slider (4) are respectively installed in the two grooves on the two opposite side walls of the through hole.

5. The multifunctional integrated battery pack test device according to claim 4, characterized in that: A plurality of movable sliders (4) are provided, and a gap is provided between each of the movable sliders (4).

6. A multifunctional integrated battery pack test device according to any one of claims 1 to 4, characterized in that: A drain port (9) and a water inlet (10) are provided on one side wall of the pool body (1), and the water inlet (10) is arranged above the drain port (9).

7. A multifunctional integrated battery pack test device according to any one of claims 1 to 4, characterized in that: The driving mechanism comprises a plurality of driving components, wherein the driving components comprise a motor (11), a steel cable (13) and a steering rod (12), wherein: The motor (11) is arranged outside the pool body (1); The steering rod (12) is arranged outside the pool body (1), and a fixed pulley (5) is arranged on the top of the steering rod (12); One end of the steel cable (13) is wound around the fixed pulley (5) and wound around a rotating disk connected to the output end of the motor (11), and the other end of the steel cable (13) is connected to the moving slide.

8. The multifunctional integrated battery pack test device according to claim 6, characterized in that: The concentration meter (6) is a salt concentration meter.

9. The multifunctional integrated battery pack testing device according to claim 7, characterized in that: The water pool body (1) is provided with a liquid level meter (7).

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