Unequal-wall battery box pressure resistance test sealing equipment

Abstract

The utility model discloses an unequal-wall battery box pressure resistance test sealing device, comprising two sealing assemblies respectively configured corresponding to openings at two ends of a battery box to be tested; the connecting assembly is respectively connected with the two sealing assemblies and can respectively and correspondingly press the two sealing assemblies to the openings at the two ends of the battery box to be tested; wherein the sealing assembly comprises a bottom plate, a sealing piece and a guide assembly, the sealing piece and the guide assembly are arranged on the bottom plate, and the guide assembly can guide an opening of the battery box to be detected to be aligned and attached to the sealing piece; at least one of the two sealing assemblies is provided with an air hole. The unequal-wall battery box withstand voltage test sealing equipment provided by the utility model has the advantage of accurate and firm sealing, and can meet the withstand voltage test requirements of unequal-wall battery boxes.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery detection technical field, especially a kind of unequal wall battery box pressure test sealing equipment. BACKGROUND

[0002] New energy battery technology is developing rapidly, and the improvement of energy density of battery cell brings significant advantages to electric vehicles and energy storage fields. However, high-energy-density battery cells also face severe safety challenges, and the requirements for protective shells are higher. To meet this demand, "two-end double-pass unequal wall square" explosion-proof battery box emerged as the times require, which optimizes the internal space layout and provides reliable protection. In order to ensure the protection effect of the battery box, sealing pressure test is crucial. However, in actual testing, the existing pressure detection equipment has some deficiencies in adaptability and precision, and it is difficult to accurately fix, seal and test this special-shaped battery box. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in the prior art. To this end, the utility model provides an unequal wall battery box pressure test sealing equipment, which has the advantages of precise and firm sealing, and can meet the pressure test requirements of the unequal wall battery box.

[0004] According to the unequal wall battery box pressure test sealing equipment of the utility model embodiment, two sealing assemblies are respectively arranged corresponding to the two end openings of the battery box to be tested, and a connecting assembly is connected with the two sealing assemblies and can press the two sealing assemblies corresponding to the two end openings of the battery box to be tested. The sealing assembly includes a bottom plate, a sealing member and a guide assembly, the sealing member and the guide assembly are arranged on the bottom plate, and the guide assembly can guide the opening of the battery box to be tested to align with the sealing member. At least one of the two sealing assemblies is provided with an air hole.

[0005] According to the unequal wall battery box pressure test sealing equipment of the utility model embodiment, the opening of the battery box to be tested is aligned with the sealing member by arranging the guide assembly, which can eliminate the influence of the opening deviation of the unequal wall battery box to be tested on the sealing, so that the opening of the unequal wall battery box to be tested can be accurately sealed with the sealing member, and the pressure test requirements of the unequal wall battery box to be tested can be met.

[0006] According to some embodiments of the utility model, the sealing member is a sealing plate, and the sealing assembly further includes a pressing assembly, which presses the sealing plate on the bottom plate.

[0007] According to some embodiments of the utility model, the sealing plate is a silica gel plate.

[0008] According to some embodiments of the present application, the pressing assembly is a pressing plate, the pressing plate is a hollow frame corresponding to the end opening of the battery box to be tested, and the four peripheral edges of the sealing plate are pressed between the pressing plate and the bottom plate.

[0009] According to some embodiments of the present application, the guide assembly is a guide head, the guide head is a trapezoidal body structure, the large end of the guide head is connected to the sealing element or the bottom plate, and the small end of the guide head faces the opening of the battery box to be tested.

[0010] According to some embodiments of the present application, the protective shell has a containing cavity inside, and the battery box to be tested is arranged in the containing cavity.

[0011] According to some embodiments of the present application, the connecting assembly is the protective shell.

[0012] According to some embodiments of the present application, the length of the protective shell is X, the length of the battery box to be tested is Y, and the X is less than the Y.

[0013] According to some embodiments of the present application, one of the sealing assemblies abuts one end of the protective shell, and the other sealing assembly has a gap from the other end of the protective shell and is connected to the protective shell through a fastening mechanism.

[0014] According to some embodiments of the present application, both of the sealing assemblies are provided with air holes.

[0015] Additional aspects and advantages of the present application will be given in part in the following description, some of which will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

[0017] Figure 1 is a disassembled schematic view of the unequal-wall battery box pressure test sealing equipment according to the embodiments of the present application;

[0018] Figure 2 is Figure 1 is a schematic view of the sealing assembly of the unequal-wall battery box pressure test sealing equipment shown;

[0019] Figure 3 is Figure 1 is a top view of the unequal-wall battery box pressure test sealing equipment shown.

[0020] Reference signs: sealing assembly 100; bottom plate 110; sealing plate 120; pressing plate 130; guide head 140; air hole 150; battery box to be tested 200; protective shell 300. DETAILED DESCRIPTION

[0021] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0022] In the description of the present application, it should be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by left, right and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application.

[0023] In the description of the present application, if the first, second, etc. are described, they are only used to distinguish technical features for the purpose, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0024] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0025] Reference Figure 1 With Figure 2The utility model discloses unequal wall battery box pressure test sealing equipment, it includes: two sealing components 100 and connecting component, two sealing components 100 respectively with the two end openings of the battery box 200 of being measured correspondingly configuration, connecting component is connected with two sealing components 100 respectively, and two sealing components 100 can be pressed to the two end openings of the battery box 200 of being measured respectively correspondingly, wherein, sealing component 100 includes bottom plate 110, sealing piece and guide component, sealing piece and guide component set up in bottom plate 110, and guide component can guide the opening of the battery box 200 of being measured and sealing piece and be right and fit, at least one of two sealing components 100 is provided with air hole 150. The opening of the battery box 200 of being measured is guided and right and fit with sealing piece by guide component, to seal the inner chamber of the battery box 200 of being measured, after injecting gas through air hole 150, the battery box 200 of being measured can be tested, and because the opening of the battery box 200 of being measured is guided and right and fit with sealing piece by guide component, the opening of the battery box 200 of being measured can also realize accurate fit sealing with sealing piece, satisfy the pressure test requirement of the battery box 200 of being measured of unequal wall.

[0026] Specifically, sealing component 100 is set to the two ends of the battery box 200 of being measured through connecting component and is sealed and connected with the opening of the two ends of the battery box 200 of being measured, closes the inner chamber of the battery box 200 of being measured, finally starts to carry out pressure test by injecting gas to the inside of the battery box 200 of being measured through air hole 150, discharges gas through air hole 150 after testing, can complete the pressure test of the battery box 200 of being measured.

[0027] In some embodiments, reference is made to Figure 1 With Figure 2 The sealing piece is a sealing plate 120, and the sealing component 100 further includes a pressing component that presses the sealing plate 120 against the bottom plate 110. The pressing component causes the sealing plate 120 to tightly fit against the bottom plate 110, preventing gas leakage.

[0028] Specifically, in some embodiments of the utility model, the surface shape of the sealing plate 120 is similar to the shape of the end opening of the battery box 200 of being measured, the middle part has an air hole 150, and the size of the sealing plate 120 is greater than the size of the end opening of the battery box 200 of being measured.

[0029] It is conceivable that, in some embodiments of the utility model, the sealing piece is a hollow sealing ring, the shape of the sealing ring is similar to the shape of the end opening of the battery box 200 of being measured, the size of the hollow region inside the sealing ring is less than the size of the inner wall of the end opening of the battery box 200 of being measured, and the size of the outer structure of the sealing ring is greater than the size of the outer wall of the end opening of the battery box 200 of being measured, which can also achieve sealing of the battery box 200 of being measured.

[0030] It can be understood that, in some embodiments of the utility model, the sealing piece can be of any shape, as long as the maximum structural size of the sealing piece is greater than the outer wall size of the end opening of the battery box 200 to be measured, the internal hollow area size of the sealing piece is less than the inner wall size of the end opening of the battery box 200 to be measured and greater than or equal to the size of the air hole 150, and the sealing of the opening of the battery box 200 to be measured can be realized.

[0031] In some embodiments, with reference to Figure 1 The sealing plate 120 is a silica gel plate. The silica gel plate can protect the battery box 200 to be measured while sealing, prevent the end of the battery box 200 to be measured from being damaged when the sealing assembly 100 is pressed tightly, and on the other hand, the silica gel plate can be deformed so that the end of the battery box 200 to be measured can be sunk into the silica gel plate, achieving better sealing effect.

[0032] It can be conceived that, in some embodiments of the utility model, the sealing plate 120 can also be a rubber plate or other materials, as long as the sealing effect can be achieved.

[0033] In some embodiments, with reference to Figure 1 And Figure 2 The pressing assembly is a pressing plate 130, the pressing plate 130 is a hollow frame corresponding to the end opening of the battery box 200 to be measured, and the four peripheral edges of the sealing plate 120 are pressed between the pressing plate 130 and the bottom plate 110. The pressing plate 130 makes the sealing plate 120 tightly pressed on the bottom plate 110.

[0034] Specifically, in some embodiments of the utility model, the pressing plate 130 is a hollow frame, the internal hollow area is similar in shape to the end opening of the battery box 200 to be measured, and the size of the internal hollow area is greater than the outer wall size of the end of the battery box 200 to be measured, that is, after the sealing assembly 100 is pressed tightly on the end opening of the battery box 200 to be measured, the pressing plate 130 is located outside the battery box 200 to be measured, which ensures that the sealing plate 120 is pressed on the bottom plate 110 while not affecting the sealing of the sealing plate 120 to the end opening of the battery box 200 to be measured.

[0035] It can be conceived that, in some embodiments of the utility model, the pressing plate 130 is a plurality of pressing rods, which are uniformly dispersed and pressed on the four peripheral edges of the sealing plate 120.

[0036] It can be understood that, in some embodiments of the utility model, the pressing plate 130 can be of any shape structure, as long as it can press the sealing plate 120 tightly while not affecting the sealing of the end opening of the battery box 200 to be measured and the sealing plate 120.

[0037] In some embodiments, with reference to Figures 1 to 2The guide component is a guide head 140, the guide head 140 is a trapezoidal body structure, the large head end of the guide head 140 is connected to the sealing piece or the bottom plate 110, and the small head end of the guide head 140 faces the opening of the battery box 200 to be measured.

[0038] Specifically, in some embodiments of the utility model, the trapezoidal guide head 140 is inserted into the inside of the battery box 200 to be measured, and the inner wall of the battery box 200 to be measured abuts against the outer contour of the guide head 140, so that the end opening of the battery box 200 to be measured is guided to be aligned with the sealing piece.

[0039] It is conceivable that, in some embodiments of the utility model, the guide component is a converging mechanism, the converging mechanism is a hollow pyramid-shaped structure with openings at both ends, the opening shape of the converging mechanism is similar to the shape of the end of the battery box 200 to be measured, the small opening end of the converging mechanism is slightly larger than the outer contour size of the end of the battery box 200 to be measured, the small opening end is gap-fitted with the end of the battery box 200 to be measured, and the small opening end size of the converging mechanism is smaller than the sealing piece size, and the converging mechanism can also guide the end opening of the battery box 200 to be measured to be aligned with the sealing piece through the gradually changing structure design of the internal cavity from large to small.

[0040] In some embodiments, referring to Figure 1 Further comprising: a protective shell 300, the protective shell 300 has a containing cavity inside, and the battery box 200 to be measured is arranged in the containing cavity. When the pressure test of the battery box 200 to be measured is performed, the protective shell 300 can prevent possible harm of the battery box 200 to be measured to surrounding persons.

[0041] Specifically, in some embodiments of the utility model, the pressure test of the battery box 200 to be measured needs to fill a certain pressure gas into the inside through the air hole 150, and the pressure test and pressure maintaining test are performed, when the battery box 200 to be measured has quality defects, abnormal phenomena such as gas leakage, deformation, explosion cracking and the like may occur, therefore, in order to detect the safety of personnel, the protective shell 300 needs to be arranged, the protective shell 300 wraps the battery box 200 to be measured, and prevents possible harm of the battery box 200 to be measured to surrounding persons.

[0042] In some embodiments, referring to Figure 1 The connecting component is a protective shell 300. The protective shell 300 has the function of preventing possible harm of the battery box 200 to be measured to surrounding persons, and also has the function of a connecting piece, connecting two sealing components 100.

[0043] Specifically, in some embodiments of the utility model, the protective shell 300 is a hollow cylinder with two open ends, the two open ends are connected with the bottom plate 110 respectively and the shape and size of the end part are same with the bottom plate 110, the hollow area can accommodate the sealing element, the guide assembly, the compression assembly and the battery box 200 to be measured.

[0044] It is conceived that, in some embodiments of the utility model, the connecting assembly is four connecting columns, the four connecting columns are arranged in parallel and the two ends are connected with the four corner points of the two sealing assemblies 100 respectively, which can also achieve the purpose of compressing the two sealing assemblies 100 to the two open ends of the battery box 200 to be measured respectively.

[0045] It can be understood that, in some embodiments of the utility model, the protective shell 300 is a box with an internal cavity and an explosion door, the sealing assembly 100, the connecting assembly and the battery box 200 to be measured are placed in the box, which can also prevent the battery box 200 to be measured from causing harm to the surrounding people during pressure test.

[0046] In some embodiments, referring to Figure 3 , the length of the protective shell 300 is X and the length of the battery box 200 to be measured is Y, X is less than Y. The clamping gap required when the sealing assembly 100 clamps the battery box 200 to be measured is reserved.

[0047] Specifically, in some embodiments of the utility model, the protective shell 300 wraps the battery box 200 to be measured to prevent personal injury, and the protective shell 300 also acts as a connecting assembly. The protective shell 300 is connected with the two sealing assemblies 100 respectively, and by rotating the connecting screw between the protective shell 300 and the sealing assembly 100, the two sealing assemblies 100 can be compressed to the two open ends of the battery box 200 to be measured respectively. When compressed, the two sealing assemblies 100 are close to each other, so the length X of the protective shell 300 needs to be less than the length Y of the battery box 200 to be measured, and the displacement gap when the two sealing assemblies 100 are close to each other is reserved.

[0048] In some embodiments, referring to Figure 3 , one of the sealing assemblies 100 abuts against one end of the protective shell 300, and the other sealing assembly 100 has a gap with the other end of the protective shell 300 and is connected with the protective shell 300 through a fastening mechanism.

[0049] Specifically, in some embodiments of the utility model, one of the sealing assemblies 100 is first abutted with one end of the protective shell 300 and fastened by screws, then the battery box 200 to be tested is placed inside the protective shell 300, under the action of the guide assembly, the opening of the battery box 200 to be tested is abutted with the sealing element of the sealing assembly 100, then the other sealing assembly 100 is abutted to the other opening of the battery box 200 to be tested, and the sealing element is abutted to the opening through the guide assembly, at this time, the length Y of the battery box 200 to be tested is greater than the length X of the protective shell 300, the sealing assembly 100 installed last is connected with the protective shell 300 by using the fastening mechanism, and the fastening mechanism is tightened, so that the sealing assembly 100 can firmly clamp the battery box 200 to be tested.

[0050] It is conceived that in some embodiments of the utility model, the battery box 200 to be tested can also be first placed inside the protective shell 300, both ends of the battery box 200 to be tested are stretched out of the protective shell 300, and the two sealing assemblies 100 are connected with the protective shell 300 by the fastening mechanism and clamp the battery box 200 to be tested, which can also achieve the testing purpose, at this time, gaps exist between the two sealing assemblies 100 and both ends of the protective shell 300.

[0051] In some embodiments, referring to Figure 1 and Figure 2 The two sealing assemblies 100 are provided with air holes 150. One of the air holes 150 is for air inlet, and the other air hole 150 is for air outlet.

[0052] Specifically, in some embodiments of the utility model, the two sealing assemblies 100 are provided with air holes 150, the two air holes 150 are communicated with the inside of the battery box 200 to be tested, one of the air holes 150 is connected with a gas source, and the other air hole 150 is connected with a pressure relief valve and an exhaust valve. The two ends of the battery box 200 to be tested are plugged by the two sealing assemblies 100 and the connecting assembly, then the exhaust valve is closed, the gas source is opened, a certain pressure gas is injected into the inside of the battery box 200 to be tested through the air hole 150, pressure resistance test is carried out, when the pressure of the filled gas is greater than the set pressure, the pressure relief valve can simultaneously release pressure to maintain the pressure in a safe range, prevent accidents, and the exhaust valve is opened for exhaust after the test is completed.

[0053] It can be understood that, in some embodiments of the utility model, one of two sealing assemblies 100 is provided with air hole 150, one end of air hole 150 is communicated with the inside of battery box 200 to be measured, the other end is connected with one port of tee assembly, the other two ports of tee assembly are connected with gas source and exhaust valve respectively. The two ends of battery box 200 to be measured are plugged by two sealing assemblies 100 and connecting assembly, then exhaust valve is closed, gas source is opened, certain pressure gas is injected into the inside of battery box 200 to be measured through air hole 150, pressure resistance test is carried out, exhaust valve is opened to release pressure after test, the requirement of pressure resistance test can also be met.

[0054] In some embodiments of the utility model, the battery box 200 to be measured is a square structure.

[0055] Specifically, the bottom plate 110, the sealing plate 120, the pressing plate 130 and the protective shell 300 are all provided in a square structure matching the square structure of the battery box 200 to be measured.

[0056] It can be understood that, in some embodiments of the utility model, the bottom plate 110, the sealing plate 120, the pressing plate 130 and the protective shell 300 can be provided in other shapes to meet the sealing or covering requirements of the battery box 200 to be measured.

[0057] It can be conceived that, in some embodiments of the utility model, the battery box 200 to be measured can also be circular or other irregular shapes, and the bottom plate 110, the sealing plate 120, the pressing plate 130 and the protective shell 300 are provided in a shape matching the specific shape of the battery box 200 to be measured, which can also meet the sealing or covering requirements of the battery box 200 to be measured.

[0058] The technical features of the above embodiments can be combined arbitrarily, and to make the description concise, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0059] Of course, the utility model is not limited to the above-mentioned implementation, and those skilled in the art can make equivalent modifications or replacements without departing from the spirit of the utility model, and these equivalent modifications or replacements are all included in the range defined by the claims of the present application.

Claims

1. A non-uniform wall battery case pressure test sealing apparatus, characterized by, The utility model relates to a kind of sealing equipment for pressure test of battery box with different wall, including: Two sealing assemblies (100) are respectively arranged corresponding to the opening of the two ends of the battery box (200) to be measured; Connecting assembly, the connecting assembly is connected with two sealing assemblies (100) respectively, and two sealing assemblies (100) can be pressed to the opening of the two ends of the battery box (200) to be measured respectively corresponding; Wherein, the sealing assembly (100) includes bottom plate (110), sealing piece and guide assembly, the sealing piece and the guide assembly are arranged on the bottom plate (110), the guide assembly can guide the opening of the battery box to be measured and the sealing piece is aligned and attached;At least one of two sealing assemblies (100) is provided with air hole (150).

2. The sealing equipment for pressure test of battery box with different wall according to claim 1, wherein, The sealing piece is a sealing plate (120), and the sealing assembly (100) further comprises a pressing assembly, and the pressing assembly presses the sealing plate (120) on the bottom plate (110).

3. The sealing equipment for pressure test of battery box with different wall according to claim 2, wherein, The sealing plate (120) is a silica gel plate.

4. The sealing equipment for pressure test of battery box with different wall according to claim 2, wherein, The pressing assembly is a pressing plate (130), and the pressing plate (130) is a hollow frame corresponding to the end opening of the battery box (200) to be measured, and the peripheral edge of the sealing plate (120) is pressed between the pressing plate (130) and the bottom plate (110).

5. The sealing equipment for pressure test of battery box with different wall according to claim 1, wherein, The guide assembly is a guide head (140), and the guide head (140) is a trapezoidal structure, the large end of the guide head (140) is connected to the sealing piece or the bottom plate (110), and the small end of the guide head (140) faces the opening of the battery box (200) to be measured.

6. The unequal wall battery can withstand voltage test sealing device according to claim 1, wherein, Further comprising: A protective shell (300) has a containing cavity inside, and the battery box (200) to be measured is arranged in the containing cavity.

7. The sealing equipment for pressure test of battery box with different wall according to claim 6, wherein, The connecting assembly is the protective shell (300).

8. The sealing equipment for pressure test of battery box with different wall according to claim 7, wherein, The length of the protective shell (300) is X, the length of the battery box (200) to be measured is Y, and the X is less than the Y.

9. The sealing equipment for pressure test of battery box with different wall according to claim 8, wherein, One of the sealing assemblies (100) abuts one end of the protective shell (300), and the other sealing assembly (100) has a gap from the other end of the protective shell (300) and is connected to the protective shell (300) through a fastening mechanism.

10. The sealing equipment for pressure test of battery box with different wall according to claim 1, wherein, Both of the sealing assemblies (100) are provided with air holes (150).

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