Battery case end gas detection equipment with mold pressing end and use method of battery case end gas detection equipment

Abstract

The invention relates to the field of battery case end gas detection, in particular to battery case end gas detection equipment with a mold pressing end and a use method of the battery case end gas detection equipment, and the battery case end gas detection equipment comprises a lower mold which comprises a placing groove for placing the end of a battery case and a ventilation middle hole located in the bottom of the placing groove; the upper mold comprises an upper pressing part directly pressing the edge of the end part of the battery shell and a water containing groove penetrating through the upper mold, and clear water contained in the water containing groove is in contact with the upper surface of the end part of the battery shell; the power mechanism is connected with the upper mold and is suitable for driving the upper mold to press the end part of the battery shell; the pneumatic mechanism is communicated with the middle hole to provide high-pressure gas for gas detection for the interior of the placement groove, meanwhile, gas is provided to push the end of the battery shell subjected to gas detection away from the lower mold, and the placement groove is communicated with the middle hole; and the size of the water containing groove is smaller than that of the end part of the battery shell. According to the battery shell end gas detection equipment with the mold pressing end and the use method thereof, gas leakage of the end of the battery shell during gas detection is avoided.

Description

Technical Field

[0001] This invention relates to the field of air detection at the end of battery casings, and more specifically to air detection equipment for the end of battery casings with mold pressing end and its usage method. Background Technology

[0002] The battery casing end is located at the end of the battery casing. The battery casing end includes the terminal post, pressure plate, insulating plate and cover plate riveted together from the inside to the outside. When installing the battery casing end on the battery casing, it is necessary to perform an air test on the battery casing end to ensure good airtightness of the riveting and prevent the high-pressure liquid inside the battery from flowing out during use.

[0003] When performing air testing on the battery casing end, a sealing ring is needed to seal the edge of the battery casing end to the lower mold. However, the edge of the battery casing end is small and is prone to air leakage when it is together with the sealing ring. There is a technical problem that the edge of the battery casing end is prone to air leakage when sealed with the sealing ring. There is an urgent need to design a battery casing end air testing device that uses a mold to press the end.

[0004] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0005] The purpose of this invention is to provide a battery casing end air detection device and its usage method for the mold pressing end, thereby solving the above problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A gas detection device for the battery casing end of the mold clamping end and its usage method, including:

[0008] The lower mold includes a placement groove for placing the end of the battery case and a central hole for ventilation at the bottom of the placement groove;

[0009] The upper mold includes an upper pressing part that directly presses against the edge of the battery case end and a water tank that passes through the upper mold, wherein the water in the water tank contacts the top of the battery case end.

[0010] A power mechanism, which is connected to the upper mold, is adapted to drive the upper mold to press the end of the battery case;

[0011] The pneumatic mechanism, which is connected to the central hole, provides high-pressure gas for gas testing into the placement slot, and at the same time provides gas to push the end of the battery case after gas testing away from the lower mold.

[0012] In one alternative embodiment, the placement slot and the central hole are connected;

[0013] The size of the placement slot is smaller than the size of the end of the battery case;

[0014] The size of the water tank is smaller than the size of the battery casing end, so that the upper pressing part presses against the edge of the battery casing end outside the tank.

[0015] In one alternative embodiment, the water tank is located in the middle of the upper mold;

[0016] The water tank has a clearance hole in the middle to avoid interference with the middle part of the battery casing.

[0017] In one alternative embodiment, the placement slot is disc-shaped;

[0018] The water tank has a trapezoidal cross-section; the sidewalls of the water tank are inclined.

[0019] In one alternative embodiment, the device further includes a connecting mechanism disposed at the upper mold;

[0020] The power mechanism drives the upper mold to press against the edge of the battery case end through the connecting mechanism.

[0021] In one optional embodiment, the connecting mechanism includes a mounting plate disposed on the upper mold and a connecting member connecting the mounting plate and the power mechanism;

[0022] The mounting plate has a hollow section in the middle.

[0023] In one alternative implementation, the device further includes a rack;

[0024] Both the power mechanism and the pneumatic mechanism are located inside the frame;

[0025] The power mechanism is a cylinder assembly;

[0026] The pneumatic mechanism consists of an air storage tank and a gas filter assembly.

[0027] Secondly, this disclosure also provides a method for using a battery casing end gas detection device at the mold clamping end, comprising the following steps:

[0028] Step S1: Place the end of the battery case to be tested into the placement slot, and then the power mechanism works to drive the upper mold to press the edge of the battery case end through the connecting mechanism.

[0029] Step S2: Place clean water in the water tank, at which point the clean water is located above the end of the battery casing;

[0030] Step S3: The pneumatic mechanism operates to provide high-pressure gas into the central hole, and observe whether bubbles are generated in the water tank.

[0031] In step S4, the clean water in the water tank is removed, and the power mechanism drives the upper mold to separate from the battery casing end. Furthermore, the pneumatic mechanism increases the pressure into the central hole, pressing the battery casing end to separate from the lower mold.

[0032] In one optional embodiment, in step S1, the edge of the battery case is pressed together by the upper pressing part and the lower mold from 0.1 mm to 0.4 mm toward the center.

[0033] In step S3, the gas pressure supplied to the central hole by the pneumatic mechanism is 0.6 MPa to 1.2 MPa.

[0034] In step S4, the gas pressure supplied by the pneumatic mechanism to the central hole is 0.6 MPa to 1.7 MPa.

[0035] In one optional embodiment, in step S1, the edge of the battery case is pressed together with the upper pressing part and the lower mold from 0.3 mm towards the center.

[0036] In step S3, the gas pressure supplied by the pneumatic mechanism to the central hole is 0.8 MPa to 1.2 MPa.

[0037] In step S4, the gas pressure supplied by the pneumatic mechanism to the central hole is 1.6 MPa to 1.7 MPa.

[0038] The beneficial effects of this invention are as follows: It provides a battery casing end air detection device with a mold pressing end and its usage method. By using a lower mold, an upper mold, a power mechanism and a pneumatic mechanism in cooperation, a battery casing end air detection device with a mold pressing end is made. When sealing the battery casing end, the upper mold and the lower mold are used to press the edge of the battery casing end, so as to achieve the effect of using the upper mold and the lower mold to press when sealing the battery casing end instead of the sealing ring contacting the battery casing end, thus avoiding air leakage at the battery casing end during air detection. Attached Figure Description

[0039] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0040] Figure 1 A schematic diagram of the overall structure of the battery casing end air detection device at the mold pressing end provided in this embodiment of the disclosure.

[0041] Figure 2This is a partial structural schematic diagram of the battery casing end air detection device provided in an embodiment of the present disclosure, which is the mold pressing end.

[0042] Figure 3 This is a partial structural diagram of the upper and lower mold portions of the battery casing end gas detection device provided in an embodiment of the present disclosure.

[0043] In the diagram: 1. Lower mold; 11. Placement slot; 12. Central hole;

[0044] 2. Connecting mechanism; 21. Mounting plate; 22. Connecting parts;

[0045] 3. Upper mold; 31. Upper pressing part; 32. Clearance hole; 33. Water tank;

[0046] 4. Power mechanism;

[0047] 5. Pneumatic mechanism;

[0048] 6. Frame. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0051] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0052] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0053] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0054] refer to Figures 1 to 3 At least one embodiment provides a battery casing end air detection device for a mold-pressed end, comprising: a lower mold 1, which includes a placement groove 11 for placing the battery casing end and a central hole 12 for ventilation at the bottom of the placement groove 11, wherein the battery casing end is placed in the placement groove 11, with the battery casing end positioned above the central hole 12 and the edge of the battery casing end positioned on the lower mold 1 outside the placement groove 11; and an upper mold 3, which includes an upper pressing part 31 for directly pressing the edge of the battery casing end and a water tank 33 penetrating the upper mold 3, wherein clean water placed in the water tank 33 contacts the top of the battery casing end, i.e., the upper pressing part 31 is adapted to press, and the lower mold 1 is positioned outside the placement groove 11. At the edge of the battery case end on the lower mold 1; a power mechanism 4, which is connected to the upper mold 3 and adapted to drive the upper mold 3 to press the battery case end, thereby deforming the edge of the battery case end on the lower mold 1 located outside the placement groove 11, thus completing the destructive test of the battery case end; a pneumatic mechanism 5, which is connected to the central hole 12 to provide high-pressure gas for gas testing into the placement groove 11, i.e., providing gas for gas testing; at the same time, the gas provides power to push the battery case end after gas testing away from the lower mold 1, providing power for the battery case end to be demolded after gas testing; both the power mechanism 4 and the pneumatic mechanism 5 are connected to an external control system for controlling their operation and stop, as well as transmitting signals.

[0055] In some embodiments, the placement groove 11 and the central hole 12 are connected to provide gas to the bottom of the placement groove 11, thereby detecting the riveting and sealing condition of the battery case end inside the placement groove 11; the size of the placement groove 11 is smaller than the size of the battery case end; the size of the water tank 33 is smaller than the size of the battery case end, so that the upper pressing part 31 presses against the edge of the battery case end outside the placement groove 11, causing deformation at the edge of the battery case end.

[0056] In some embodiments, the water tank 33 is located in the middle of the upper mold 3; the middle of the water tank 33 is provided with a clearance hole 32 to avoid interference with the middle of the end of the battery case.

[0057] In some embodiments, the placement groove 11 is disc-shaped and is used to match the shape of the end of the battery case; the cross-section of the water tank 33 is trapezoidal; and the sidewall of the water tank 33 is inclined.

[0058] In some embodiments, the device further includes a connecting mechanism 2 disposed at the upper mold 3; the power mechanism 4 drives the upper mold 3 to press against the edge of the battery case end through the connecting mechanism 2, for transmitting the power of the power mechanism 4.

[0059] In some embodiments, the connecting mechanism 2 includes a mounting plate 21 disposed on the upper mold 3 and a connecting member 22 connecting the mounting plate 21 and the power mechanism 4; the mounting plate 21 has a hollowed-out portion in the middle, which is used to facilitate the addition of clean water to the water tank 33 through the mounting plate 21.

[0060] In some embodiments, the device further includes a frame 6; the power mechanism 4 and the pneumatic mechanism 5 are both located inside the frame 6; the power mechanism 4 is a cylinder assembly; the pneumatic mechanism 5 is an air tank and a gas filter assembly for providing clean high-pressure gas.

[0061] In some embodiments, a method of using a battery casing end air detection device with a mold pressing end includes the following steps: Step S1, the external conveying mechanism places the battery casing end to be detected into the placement groove 11, and then the power mechanism 4 drives the upper mold 3 to press the edge of the battery casing end through the connecting mechanism 2, that is, the power mechanism 4 pulls the mounting plate 21 down through the connecting piece 22, and the mounting plate 21 drives the upper mold 3 down, thereby causing the upper pressing part 31 to press the edge of the battery casing end outside the placement groove 11, causing deformation at the edge of the battery casing end; Step S2, clean water is placed in the water tank 33, at which time the clean water is above the battery casing end; Step S3, the pneumatic mechanism 5. High-pressure gas is supplied to the central hole 12. Observe whether bubbles are generated in the water tank 33. If the end of the battery case is properly riveted, no bubbles will be generated in the water tank 33. If the end of the battery case is improperly riveted, bubbles will be generated in the water tank 33, and even the parts at the end of the battery case may move into the water tank 33. In step S4, the clean water in the water tank 33 is removed. The power mechanism 4 drives the upper mold 3 to separate from the end of the battery case. At this time, the distance between the upper mold 3 and the lower mold 1 is less than the thickness of the end of the battery case to prevent the end of the battery case from being blown away. Furthermore, the pneumatic mechanism 5 increases the pressure to the central hole 12 to press the end of the battery case to separate from the lower mold 1.

[0062] In some embodiments, in step S1, the edge of the battery case is pressed by the upper pressing part 31 and the lower mold 1 from 0.1 mm to 0.4 mm towards the center, and the edge of the pressed battery case end deforms; in step S3, the gas pressure provided by the pneumatic mechanism 5 to the central hole 12 is 0.6 MPa to 1.2 MPa; in step S4, the gas pressure provided by the pneumatic mechanism 5 to the central hole 12 is 0.6 MPa to 1.7 MPa, which is used to provide the power for the end of the battery case to separate from the lower mold 1.

[0063] In some embodiments, in step S1, the edge of the battery case is pressed together with the upper pressing part 31 and the lower mold 1 at a distance of 0.3 mm from the center; in step S3, the gas pressure provided by the pneumatic mechanism 5 to the central hole 12 is 0.8 MPa to 1.2 MPa; in step S4, the gas pressure provided by the pneumatic mechanism 5 to the central hole 12 is 1.6 MPa to 1.7 MPa.

[0064] In the description of the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0065] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0066] While this patent document contains numerous details, it should not be construed as limiting the scope of any invention or claim, but rather as a description of features of specific embodiments of a particular invention. Certain features described in the context of individual embodiments may also be implemented in combination in a single embodiment. Conversely, various functions described in the context of a single embodiment may also be implemented individually in multiple embodiments, or in any suitable sub-combination. Furthermore, although the foregoing features may be described as functioning in certain combinations, or even initially claimed to be so, in certain circumstances, one or more features from a combination of claims may be removed from the combination, and a combination of claims may refer to a sub-combination or a variation of a sub-combination.

[0067] Similarly, although the operations are described in a specific order in the accompanying drawings, this should not be construed as requiring the specific order or sequence shown to perform such operations, or all the described operations, in order to obtain the desired result. Furthermore, the separation of various system components in the embodiments of this patent document should not be construed as requiring such separation in all embodiments.

[0068] Only some implementations and examples are described; other implementations, enhancements, and variations can be made based on the content described and illustrated in this patent document.

[0069] While several embodiments are provided in this disclosure, it should be understood that the disclosed systems and methods may be embodied in many other specific forms without departing from the spirit or scope of this disclosure. The present examples are intended to be illustrative rather than restrictive and are not limited to the details given. For example, various elements or components may be combined or integrated into another system, or certain features may be omitted or not implemented.

Claims

1. A battery casing end air detection device for a mold-pressed end, characterized in that, include: The lower mold (1) includes a placement groove (11) for placing the end of the battery case and a central hole (12) for ventilation at the bottom of the placement groove (11); The upper mold (3) includes an upper pressing part (31) that directly presses the edge of the battery case end and a water tank (33) that passes through the upper mold (3), wherein the water in the water tank (33) contacts the top of the battery case end; The power mechanism (4) is connected to the upper mold (3) and is adapted to drive the upper mold (3) to press the end of the battery case; The pneumatic mechanism (5) is connected to the central hole (12) to provide high-pressure gas for gas detection into the placement groove (11), and at the same time, the gas is provided to push the end of the battery case after gas detection away from the lower mold (1).

2. The battery casing end air detection device at the mold pressing end according to claim 1, characterized in that: The placement slot (11) and the central hole (12) are connected; The size of the placement slot (11) is smaller than the size of the end of the battery case; The size of the water tank (33) is smaller than the size of the battery case end, so that the upper pressing part (31) presses against the edge of the battery case end outside the placement slot (11).

3. The battery casing end air detection device at the mold pressing end according to claim 2, characterized in that: The water tank (33) is located in the middle of the upper mold (3); The water tank (33) is provided with a clearance hole (32) in the middle to avoid interference with the middle of the end of the battery case.

4. The battery casing end air detection device at the mold pressing end according to claim 2, characterized in that: The placement slot (11) is disc-shaped; The cross-section of the water tank (33) is trapezoidal; the sidewall of the water tank (33) is inclined.

5. The battery casing end air detection device at the mold pressing end according to claim 1, characterized in that: The device also includes a connecting mechanism (2) disposed at the upper mold (3); The power mechanism (4) drives the upper mold (3) to press the edge of the battery case end through the connecting mechanism (2).

6. The battery casing end air detection device at the mold pressing end according to claim 5, characterized in that: The connecting mechanism (2) includes a mounting plate (21) disposed on the upper mold (3) and a connecting piece (22) connecting the mounting plate (21) and the power mechanism (4); The mounting plate (21) has a hollowed-out section in the middle.

7. The battery casing end air detection device at the mold pressing end according to claim 1, characterized in that: The equipment also includes a frame (6); The power mechanism (4) and the pneumatic mechanism (5) are both located inside the frame (6); The power mechanism (4) is a cylinder assembly; The pneumatic mechanism (5) consists of an air storage tank and a gas filter assembly.

8. A method of using a battery casing end gas detection device with a mold pressing end, characterized in that, Includes the following steps: Step S1: Place the end of the battery case to be tested into the placement slot (11), and then the power mechanism (4) works through the connecting mechanism (2) to drive the upper mold (3) to press the edge of the battery case end; Step S2, place clean water in the water tank (33), at which time the clean water is located above the end of the battery case; Step S3: The pneumatic mechanism (5) works to provide high-pressure gas into the central hole (12), and observe whether bubbles are generated in the water tank (33); In step S4, the clean water in the water tank (33) is removed, and the power mechanism (4) works to drive the upper mold (3) to separate from the battery shell end. Furthermore, the pneumatic mechanism (5) increases the pressure on the central hole (12) to press the battery shell end to separate from the lower mold (1).

9. The method of using the battery casing end air detection device at the mold pressing end according to claim 8, characterized in that: In step S1, the edge of the battery case is pressed together with the upper pressing part (31) and the lower mold (1) from 0.1 mm to 0.4 mm toward the center; In step S3, the gas pressure supplied by the pneumatic mechanism (5) to the central hole (12) is 0.6 MPa to 1.2 MPa. In step S4, the gas pressure supplied by the pneumatic mechanism (5) to the central hole (12) is 0.6 MPa to 1.7 MPa.

10. The method of using the battery casing end air detection device at the mold pressing end according to claim 9, characterized in that: In step S1, the edge of the battery case is pressed together with the upper pressing part (31) and the lower mold (1) from the center to a depth of 0.3mm. In step S3, the gas pressure supplied by the pneumatic mechanism (5) to the central hole (12) is 0.8 MPa to 1.2 MPa. In step S4, the gas pressure supplied by the pneumatic mechanism (5) to the central hole (12) is 1.6 MPa to 1.7 MPa.

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