Power battery air tightness detection device

Abstract

The embodiment of the utility model provides a power battery airtightness detection device, and relates to the technical field of battery airtightness. The power battery air tightness detection device comprises a bakelite test cover, a sealing member and an air valve, the bakelite test cover is used for covering the surface of a power battery, the sealing member is arranged in the bakelite test cover, the sealing member is used for sealing an explosion-proof valve of the power battery, and the air valve is connected with the bakelite test cover. When in use, the bakelite test cover covers the top surface of the power battery, an explosion-proof valve of the power battery is sealed through the sealing element to realize plugging, the bakelite test cover is connected with the air valve, and gas is conveyed into the bakelite test cover through the air valve, so that the air tightness of the power battery is tested. The power battery air tightness detection device is simple in overall structure, more convenient and faster to use, and capable of improving the working efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery airtightness technical field, specifically, relate to a power battery airtightness detection device. BACKGROUND

[0002] With the continuous progress of new energy technology, electric vehicles are widely used in daily life. Power battery is the core component of electric vehicle, can provide power for electric vehicle. The airtightness of power battery is very important for power battery.

[0003] The battery airtightness detection device in prior art has the technical problems of complex structure and cumbersome use. UTILITY MODEL CONTENT

[0004] The utility model provides a power battery airtightness detection device, it can simplify overall structure, it is more convenient to use, improves work efficiency.

[0005] The embodiment of the utility model can be realized as follows:

[0006] The embodiment of the utility model provides a power battery airtightness detection device, it includes:

[0007] Bakelite test cover, the bakelite test cover is used to cover on the surface of power battery;

[0008] Sealing element, the sealing element is arranged in the bakelite test cover, and the sealing element is used to seal the explosion valve of power battery;

[0009] Air valve, the air valve is connected with the bakelite test cover.

[0010] Optionally, the bakelite test cover includes bakelite cover plate and bakelite support, the bakelite cover plate and the bakelite support are detachably connected, and the bakelite support is used to be connected with power battery.

[0011] Optionally, the power battery airtightness detection device further includes connecting piece, and the bakelite cover plate and the bakelite support are detachably connected through the connecting piece.

[0012] Optionally, the connecting piece is bolt.

[0013] Optionally, the bottom surface of the bakelite cover plate is provided with recess, and the sealing element is arranged in the recess.

[0014] Optionally, the recess is arranged along the circumferential direction, and the recess is square annular groove.

[0015] Optionally, the groove depth of the recess ranges from 2.5mm to 3.5mm.

[0016] Optionally, the power battery airtightness detection device further comprises a gas pressure monitor, and the gas pressure monitor is connected with the gas valve.

[0017] Optionally, the sealing member is a silica gel pad.

[0018] Optionally, the thickness of the silica gel pad ranges from 2.8 mm to 3.2 mm.

[0019] The power battery airtightness detection device has the following advantages, for example:

[0020] The power battery airtightness detection device comprises a bakelite test cover, a sealing member and a gas valve, the bakelite test cover is used for covering the surface of the power battery, the sealing member is arranged in the bakelite test cover, the sealing member is used for sealing the explosion-proof valve of the power battery, and the gas valve is connected with the bakelite test cover. In use, the bakelite test cover is covered on the top surface of the power battery, the explosion-proof valve of the power battery is sealed to achieve plugging through the sealing member, the bakelite test cover is connected with the gas valve, and the gas valve is used for conveying gas into the bakelite test cover, so that the power battery is subjected to airtightness test. The power battery airtightness detection device has a simple overall structure, is more convenient and fast to use, and can improve work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0022] Fig. 1 The first perspective view of the structure of the power battery airtightness detection device provided in the embodiment;

[0023] Fig. 2 The second perspective view of the structure of the power battery airtightness detection device provided in the embodiment;

[0024] Fig. 3 The third perspective view of the structure of the power battery airtightness detection device provided in the embodiment.

[0025] Figure: 10-bakelite test cover; 11-bakelite cover plate; 12-bakelite support; 13-groove; 14-mounting hole; 15-vent hole; 16-vent chamber; 20-sealing member; 30-gas valve; 40-connection piece; 100-power battery airtightness detection device. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the utility model protection.

[0028] It should be noted that: similar signs and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0029] In the description of the utility model, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is used, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.

[0030] In addition, if the terms "first", "second" and the like are used only to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0031] It should be noted that the features in the embodiments of the utility model can be combined with each other without conflict.

[0032] With the continuous progress of new energy technology, electric vehicles are widely used in daily life. The power battery is the core component of the electric vehicle, which can provide power for the electric vehicle. The air tightness of the power battery is very important for the power battery.

[0033] The battery air tightness detection device in the related art has the technical problems of complex structure and cumbersome use.

[0034] Please refer to Figs. 1-3 The power battery air tightness detection device 100 provided in the embodiments of the utility model can effectively improve the above-mentioned technical problems, simplify the overall structure, be more convenient to use, and improve the work efficiency.

[0035] Referring to Figs. 1-3 The power battery airtightness detection device 100 includes an bakelite test cover 10, a sealing piece 20, and a gas valve 30. The bakelite test cover 10 is used to cover the surface of the power battery. The sealing piece 20 is arranged in the bakelite test cover 10 and is used to seal the explosion-proof valve of the power battery. The gas valve 30 is connected with the bakelite test cover 10.

[0036] Specifically, the airtightness detection device in the prior art is relatively cumbersome in the process of testing the airtightness of the power battery, and the testing process is time-consuming and low in work efficiency. In order to solve this technical problem, the power battery airtightness detection device 100 provided in the embodiment is used to cover the top surface of the power battery with the bakelite test cover 10, to seal the explosion-proof valve of the power battery by the sealing piece 20 to achieve plugging, and to connect the gas valve 30 with the bakelite test cover 10, to convey gas into the bakelite test cover 10 through the gas valve 30, so as to test the airtightness of the power battery. The overall structure of the power battery airtightness detection device 100 is simple, and it is more convenient and fast to use, which can improve the work efficiency.

[0037] Meanwhile, the sealing piece 20 in the embodiment directly seals the explosion-proof valve of the power battery to achieve temporary sealing, which can quickly test the airtightness of the power battery, and it is more convenient and fast to use, which improves the overall work efficiency.

[0038] In the embodiment, the bakelite test cover 10 includes a bakelite cover plate 11 and a bakelite support 12. The bakelite cover plate 11 and the bakelite support 12 are detachably connected. The bakelite support 12 is used to connect with the power battery. The bakelite cover plate 11 is a square cover plate. The bakelite support 12 is clamped with the top surface of the power battery.

[0039] It should be noted that the power battery airtightness detection device 100 further includes a connecting piece 40. The bakelite cover plate 11 and the bakelite support 12 are detachably connected through the connecting piece 40.

[0040] Specifically, the connecting piece 40 is a bolt. Specifically, an M6 bolt is used to connect the bakelite cover plate 11 and the bakelite support 12.

[0041] Further, two mounting holes 14 are arranged on the bakelite cover plate 11. The two mounting holes 14 are respectively arranged at two ends of the bakelite cover plate 11. The number of the connecting pieces 40 corresponds to the number of the mounting holes 14. A through hole is arranged on the bakelite support 12 at a position corresponding to the position of the mounting hole 14. The connecting piece 40 passes through the mounting hole 14 and the through hole at the same time, so as to detachably connect the bakelite cover plate 11 and the bakelite support 12.

[0042] It can be understood that the number of bakelite supports 12 in the embodiment is two, and the two bakelite supports 12 are respectively arranged at two ends of the bakelite cover plate 11.

[0043] In the embodiment, the number of connecting pieces 40 is two. In other embodiments, the number of connecting pieces 40 can be increased or decreased, which is not specifically limited here.

[0044] It needs to be explained that the side of the bakelite cover plate 11 close to the bakelite support 12 is provided with a groove 13, and the sealing piece 20 is arranged in the groove 13. Specifically, the groove 13 is arranged in the circumferential direction, and the groove 13 is a square ring groove.

[0045] In the embodiment, the groove depth of the groove 13 ranges from 2.5mm to 3.5mm. Specifically, the groove depth of the groove 13 is 3mm. In other embodiments, the groove depth of the groove 13 can be 2.5mm, 2.8mm, 3.1mm or 3.5mm, which is not specifically limited here.

[0046] In the embodiment, the sealing piece 20 is a silica gel pad. The shape of the silica gel pad is matched with the shape of the groove 13. In other embodiments, the sealing piece 20 can also be a rubber pad or a rubber ring, etc. sealing piece 20, which is not specifically limited here.

[0047] In the embodiment, the thickness of the silica gel pad ranges from 2.8mm to 3.2mm. Specifically, the thickness of the silica gel pad is 3mm. In other embodiments, the thickness of the silica gel pad is 2.8mm, 2.9mm or 3.2mm, which is not specifically limited here.

[0048] In order to better test the airtightness of the power battery, the power battery airtightness detection device 100 provided in the embodiment further comprises an air pressure monitor, the air pressure monitor is connected with the air valve 30, and the air pressure monitor can monitor the air pressure output by the air valve 30, so as to ensure the accuracy and safety of the power battery airtightness detection.

[0049] It also needs to be explained that the side of the bakelite cover plate 11 provided with the groove 13 is also provided with an air chamber 16, the bakelite cover plate 11 is provided with a ventilation hole 15, the ventilation hole 15 and the air chamber 16 are communicated, and the air valve 30 is arranged in the ventilation hole 15, so as to ventilate into the air chamber 16.

[0050] Specifically, the ventilation hole 15 is arranged in the middle of the bakelite cover plate 11, and the ventilation hole 15 is a circular structure. The air chamber 16 is located in the annular region of the groove 13, and the air chamber 16 is a square structure.

[0051] In use, the bakelite support 12 is clamped on the power battery, then the bakelite cover plate 11 is placed on the top of the power battery, and the bakelite support 12 and the bakelite cover plate 11 are connected by bolts, so as to fix the bakelite cover plate 11 on the top of the power battery, so that the sealing element 20 can seal the explosion-proof valve, then the air valve 30 is opened to ventilate into the air chamber 16, so as to detect the air tightness of the power battery. During the detection process, the air pressure monitor can detect the air pressure output by the air valve 30 in real time, so as to ensure the accuracy and safety of the detection.

[0052] After detection, only two bolts need to be removed, and the bakelite cover plate 11 and the bakelite support 12 can be disassembled, and the whole power battery air tightness detection device 100 can be disassembled from the power battery. It is convenient to use and has high working efficiency.

[0053] The power battery air tightness detection device 100 provided in the embodiment has at least the following advantages:

[0054] Compared with the air tightness detection device in the prior art, the power battery air tightness detection device 100 provided in the embodiment covers the top surface of the power battery with the bakelite test cover 10, seals and blocks the explosion-proof valve of the power battery through the sealing element 20, and connects the air valve 30 with the bakelite test cover 10. The air valve 30 transports gas into the bakelite test cover 10, so as to test the air tightness of the power battery. The overall structure of the power battery air tightness detection device 100 is simple, and it is more convenient and fast to use, which can improve the working efficiency. Moreover, the sealing element 20 in the embodiment directly blocks the explosion-proof valve of the power battery to achieve temporary sealing, which can quickly test the air tightness of the power battery, and is more convenient and fast to use, which improves the overall working efficiency.

[0055] The power battery air tightness detection device 100 provided in the embodiment only needs to remove two bolts after detection, and the bakelite cover plate 11 and the bakelite support 12 can be disassembled, and the whole power battery air tightness detection device 100 can be disassembled from the power battery. It is more convenient to disassemble and has high working efficiency.

[0056] In conclusion, the power battery airtightness detection device 100 provided by the embodiments of the present application comprises a bakelite test cover 10, a sealing element 20 and a gas valve 30, the bakelite test cover 10 is used for covering the surface of the power battery, the sealing element 20 is arranged in the bakelite test cover 10, the sealing element 20 is used for sealing the explosion-proof valve of the power battery, and the gas valve 30 is connected with the bakelite test cover 10. In use, the bakelite test cover 10 is covered on the top surface of the power battery, the explosion-proof valve of the power battery is sealed to achieve plugging through the sealing element 20, the bakelite test cover 10 is connected with the gas valve 30, and the gas valve 30 is used for conveying gas into the bakelite test cover 10, so that the airtightness of the power battery is tested. The overall structure of the power battery airtightness detection device 100 is simple, the power battery airtightness detection device 100 is more convenient and faster to use, and the working efficiency can be improved.

[0057] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A power battery airtightness detection device, characterized in that, The utility model relates to a power battery airtightness detection device (100), including: Bakelite test cover (10) for covering the surface of power battery, Seal (20) is arranged in the bakelite test cover (10), and the seal (20) is used for sealing the explosion valve of power battery, Air valve (30) is connected with the bakelite test cover (10), Air pressure monitor is connected with the air valve (30).

2. The power battery air tightness detection device according to claim 1, characterized in that, The bakelite test cover (10) includes bakelite cover plate (11) and bakelite support (12), the bakelite cover plate (11) and the bakelite support (12) are detachably connected, and the bakelite support (12) is used for being connected with power battery.

3. The power battery air tightness detection device according to claim 2, characterized in that, The power battery airtightness detection device (100) further includes connecting piece (40), and the bakelite cover plate (11) and the bakelite support (12) are detachably connected through the connecting piece (40).

4. The power battery air tightness detection device according to claim 3, characterized in that, The connecting piece (40) is bolt.

5. The power battery air tightness detection device according to claim 2, characterized in that, The bottom surface of the bakelite cover plate (11) is provided with recess (13), and the seal (20) is arranged in the recess (13).

6. The power battery air tightness detection device according to claim 5, characterized in that, The recess (13) is arranged along the circumferential direction, and the recess (13) is a square ring groove.

7. The power battery air tightness detection device according to claim 5, characterized in that, The groove depth of the recess (13) ranges from 2.5mm to 3.5mm.

8. The power battery airtightness detection device according to any one of claims 1-7, characterized in that, The seal (20) is a silica gel pad.

9. The power battery air tightness detection device according to claim 8, characterized in that, The thickness of the silica gel pad ranges from 2.8mm to 3.2mm.

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