Pre-sinking test tool for battery pack box body

By designing a pre-immersion test fixture for battery pack housings, the problem of housing damage caused by uneven counterweights was solved, thereby improving the stability and safety of battery pack housings during transportation and testing, and ensuring the reliability of sealing tests.

CN223678724UActive Publication Date: 2025-12-16HEFEI GUOXUAN HIGH TECH POWER ENERGY
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Patent Information

Application Number
CN202520165274.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-22
Publication Date
2025-12-16
Estimated Expiration
2035-01-22

AI Technical Summary

Technical Problem

In existing battery pack pre-immersion tests, the number and size of counterweights are limited, resulting in uneven stress inside the pack, which can easily cause damage to the pack cover and affect the reliability and safety of the sealing test.

Method used

Design a test fixture including a counterweight, a guide component, a fixing frame assembly, a clamping assembly, and a limiting assembly. The guide component guides the movement of the fixing frame assembly, the limiting assembly accurately positions and fixes the battery pack housing, the counterweight ensures uniform force distribution inside the housing, and aluminum material is used to reduce weight and enhance stability.

Benefits of technology

It improves the stability and safety of the battery pack housing during transportation and testing, avoids damage caused by local overload, enhances the flexibility and adaptability of the device, and ensures the reliability of the sealing test.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a pre-sinking test tool for a battery pack box body. The pre-sinking test tool comprises a counterweight piece, the guide parts are arranged on the two sides of the counterweight part; the fixing frame assembly is arranged at the outer end of the guide part; the clamping assembly is arranged in the guide part; the limiting assemblies are arranged at the two ends of the fixing frame assembly; the clamping assembly on the fixing frame assembly is matched with the limiting assembly to move on the guide component, different battery pack boxes are limited and fixed, and the interior of each battery pack box is kept uniform in stress through the balance weight piece. The clamping assembly is matched with the limiting assembly to move on the guide component, the battery pack hoisting device can be compatible with the widths of different battery packs, and the counterweight piece replaces a traditional counterweight block to avoid uneven stress in the box body caused by shaking in the hoisting process.
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Description

TECHNICAL FIELD

[0001] The utility model relates to battery pack test technical field, especially a kind of for battery pack box pre-sediment water test tooling. BACKGROUND

[0002] With the environmental demand of battery pack in actual use more and more severe, especially electric vehicle in rainstorm, wading and the like driving may encounter water invasion to cause electrical component short circuit and other fault risks, vehicle for battery pack waterproof and sealing performance requirement more and more high.Therefore, ensure the waterproof performance of battery pack for vehicle reliability and safety is very important.Battery box pre-sediment water test is an important means for verifying battery pack sealing and waterproof performance in design and manufacturing process.

[0003] However, the existing box pre-sediment water is simulated real use environment usually for box interior to be counterweighted.The number and size of counterweight block are limited on the one hand by the low compatibility of battery pack overall envelope, on the other hand, battery pack will be jolted, shaken in hoisting process, and the counterweight block not fixed in envelope can easily cause box cover damage, thereby affecting the reliability of box sealing detection. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the insufficient of prior art, for realizing above-mentioned purpose, a kind of for battery pack box pre-sediment water test tooling is used to solve the problems raised in the above background.

[0005] A kind of for battery pack box pre-sediment water test tooling, comprising:

[0006] Counterweight piece;

[0007] Guiding component is arranged in the two sides of the counterweight piece;

[0008] Fixed frame assembly is arranged in the outer end of the guiding component;

[0009] Clamping assembly is arranged in the guiding component;

[0010] Limiting component is arranged in the two ends of the fixed frame assembly;

[0011] Through the clamping assembly on the fixed frame assembly cooperation limiting component moves on the guiding component, different battery pack box is fixed and limited, and the counterweight piece is used to keep the stress uniformity in the interior of battery pack box.This design can flexibly adapt to battery pack box of different sizes and weights, ensure its stability and safety in transportation or testing process, and the design of counterweight piece effectively disperses the pressure in the interior of box, avoids damage caused by local overload.

[0012] As a further scheme of the utility model: the counterweight adopts aluminum plate structure. This design is light in weight and high in strength, can effectively reduce the overall weight, maintain good bearing capacity at the same time, is convenient for carrying and operation, also accords with the light weight design trend.

[0013] As a further scheme of the utility model: the guide component is a plurality of guide grooves equidistantly opened on both sides of the counterweight. The design of guide groove provides a stable moving path, ensures that the fixed frame assembly and the clamping assembly thereon can slide accurately and stably on the counterweight, improves the positioning accuracy and the convenience of operation.

[0014] As a further scheme of the utility model: the fixed frame assembly is movably arranged in a plurality of guide grooves on both sides of the counterweight. The fixed frame assembly can be freely adjusted in position as required, adapts to battery pack boxes of different sizes, and enhances the versatility and flexibility of the device.

[0015] As a further scheme of the utility model: the clamping assembly comprises a pressing plate arranged on the top of the fixed frame assembly, a buffer arranged between the fixed frame assembly and the pressing plate, and a locking screw arranged in the guide groove and the pressing plate. Through the joint action of the pressing plate and the buffer, flexible clamping of the battery pack box can be realized, damage caused by hard contact is avoided, and the stability of clamping is ensured by the locking screw.

[0016] As a further scheme of the utility model: the limiting assembly comprises a screw groove opened in the fixed frame assembly, a limiting screw arranged in the screw groove, and an opening arranged at both ends of the screw groove. The design of limiting screw and screw groove provides a simple and effective limiting mechanism, the limiting position can be adjusted according to the size of the battery pack box, and the adaptability and stability of the device are enhanced.

[0017] As a further scheme of the utility model: the limiting assembly is connected to the counterweight by screwing. The screwing method is convenient for installation and disassembly, is convenient for users to adjust and maintain according to actual needs, improves the ease of use and flexibility of the device.

[0018] As a further scheme of the utility model: the counterweight is provided with a lifting ring at the end corner. The design of lifting ring facilitates carrying by using hoisting equipment, improves work efficiency, and also provides convenience for movement and positioning of the device.

[0019] As a further scheme of the utility model: the bottom end of the counterweight is provided with a bottom support, and the bottom support is in U-shaped structure. The U-shaped bottom support provides a stable support surface, enhances the stability of the device when placed, avoids tilting or collapse caused by uneven ground or accidental collision, and improves safety.

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

[0021] Adopt above-mentioned technical scheme, through integrated counterweight, guide component, fixed frame subassembly, clamping assembly and limit component, utilize guide component to guide the clamping assembly on fixed frame subassembly to move at both sides of counterweight, through limit component accurate positioning and fixed battery package box of different size, simultaneously, counterweight ensures that the stress is even in the box, effectively prevent the vibration damage in the transportation or storage process.This scheme not only improved the flexibility and stability of battery package fixation, also significantly enhanced the safety and durability of battery package use. BRIEF DESCRIPTION OF DRAWINGS

[0022] The specific embodiments of the utility model will be described in detail below with reference to the drawings:

[0023] Figure 1 It is the perspective axonometric view of the test tool of the disclosed embodiment of the application;

[0024] Figure 2 It is the perspective axonometric view of the disclosed embodiment of the application Figure 1 A partial enlarged view of the A part;

[0025] Figure 3 It is the perspective axonometric view of the disclosed embodiment of the application Figure 1 B partial enlarged view of the A part;

[0026] Figure 4 It is the overall structure schematic view of the test tool of the disclosed embodiment of the application.

[0027] In the drawing: 1, counterweight; 11, guide component; 2, fixed frame subassembly; 21, screw groove; 22, limit screw; 23, opening part; 3, clamping assembly; 31, pressing plate; 32, buffer; 33, locking screw; 4, limit component; 5, lifting ring; 6, bottom support. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0029] Please refer to Figure 1 In the embodiments of the utility model, a test tool for battery package box is provided, which comprises:

[0030] Counterweight 1 is used for cooperating with the limit to test the battery package;

[0031] A guide component 11 is arranged on both sides of the counterweight 1.

[0032] A fixing frame assembly 2 is arranged on the outer end of the guide component 11.

[0033] A clamping assembly 3 is arranged in the guide component 11.

[0034] A limiting assembly 4 is arranged at both ends of the fixing frame assembly 2.

[0035] The clamping assembly 3 on the fixing frame assembly 2 cooperates with the limiting assembly 4 to move on the guide component 11, so as to limit and fix different battery pack boxes, and the counterweight 1 is used to keep the internal force of the battery pack box uniform.

[0036] In this embodiment, the counterweight 1 is an aluminum plate structure.

[0037] In this embodiment, the guide component 11 is a plurality of guide grooves equidistantly arranged on both sides of the counterweight 1, and the fixing frame assembly 2 is movably arranged in the plurality of guide grooves on both sides of the counterweight 1.

[0038] Specifically, eight equidistant guide grooves are symmetrically arranged on the surface of the counterweight 1.

[0039] As shown in Figure 2 , it is a partial enlarged view of A part of Figure 1 .

[0040] As shown in Figure 3 , it is a partial enlarged view of B part of Figure 1 .

[0041] In this embodiment, the clamping assembly 3 includes a pressing plate 31 arranged on the top of the fixing frame assembly 2, a buffer 32 arranged between the fixing frame assembly 2 and the pressing plate 31, and a locking screw 33 arranged in the guide groove and the pressing plate 31.

[0042] Specifically, the locking screw 33 is used to compress the fixing frame assembly 2. The foam as the buffer 32 is adhered to the pressing plate 31, and the buffer 32 has a certain compression amount, so as to have the functions of compression fixing, buffering, vibration isolation and noise reduction. The pressing plate 31 is screw-fixedly installed on the locking screw 33.

[0043] In this embodiment, the limiting assembly 4 includes a screw groove 21 arranged in the fixing frame assembly 2, a limiting screw 22 arranged in the screw groove 21, and an opening part 23 arranged at both ends of the screw groove 21.

[0044] The limiting assembly 4 is connected to the counterweight 1 by screwing, and is used to limit the battery pack during hoisting.

[0045] As Figure 4 shown, the overall structure of the test tool is shown schematically;

[0046] In the embodiment, the upper surface of the counterweight 1 is provided with left and right screw grooves 21, and the screw grooves 21 are provided with limiting screws 22 matched with the screw grooves 21, so that the limiting screws 22 move in the grooves, and the both ends of the grooves are provided with opening parts 23, which are convenient for subsequent taking out and assembling the limiting screws 22.

[0047] In the embodiment, the end corner of the counterweight 1 is provided with a lifting ring 5 for lifting the battery pack into the water test tank, and the bottom end of the counterweight 1 is provided with a bottom support 6 in a U-shaped structure, which is welded and fixed around the bottom of the counterweight 1, which plays a supporting role on the one hand and is used for forklift transportation on the other hand.

[0048] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application, and any reference signs in the claims should not be regarded as limiting the claims.

[0049] In addition, it should be understood that although the present application is described in the form of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A battery pack case pre-sink test tool, characterized in that, It comprises: a counterweight; a guide component arranged on both sides of the counterweight; a fixing frame assembly arranged at the outer end of the guide component; a clamping assembly arranged in the guide component; and a limiting assembly arranged at both ends of the fixing frame assembly; The clamping assembly on the fixing frame assembly cooperates with the limiting assembly to move on the guide component, so as to limit and fix different battery pack boxes, and the counterweight is used to keep the internal force of the battery pack box uniform.

2. The pre-flooding test tool for a battery pack housing according to claim 1, wherein The counterweight adopts an aluminum plate structure.

3. The pre-flooding test tool for a battery pack housing of claim 2, wherein, The guide component is a plurality of guide grooves equidistantly arranged on both sides of the counterweight.

4. The pre-flooding test tool for battery pack enclosures of claim 3, wherein, The fixing frame assembly is movably arranged in the plurality of guide grooves on both sides of the counterweight.

5. The pre-flooding test tool for battery pack enclosures of claim 4, wherein, The clamping assembly comprises a pressing plate arranged on the top of the fixing frame assembly, a buffer arranged between the fixing frame assembly and the pressing plate, and a locking screw rod arranged in the guide groove and the pressing plate.

6. The pre-flooding test tool for a battery pack enclosure of claim 5, wherein, The limiting assembly comprises a screw rod groove arranged in the fixing frame assembly, a limiting screw rod arranged in the screw rod groove, and an opening arranged at both ends of the screw rod groove.

7. The pre-flooding test tool for battery pack enclosures of claim 4, wherein, The limiting assembly is connected to the counterweight by screwing.

8. The pre-flooding test tool for a battery pack enclosure of claim 7, wherein, The end corner of the counterweight is provided with a lifting ring.

9. The pre-flooding test tool for a battery pack enclosure of claim 8, wherein, The bottom end of the counterweight is provided with a bottom support, and the bottom support has a U-shaped structure.