CN217062456U - Welding-free sealing nail and square aluminum shell battery - Google Patents
Welding-free sealing nail and square aluminum shell battery Download PDFInfo
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- CN217062456U CN217062456U CN202220452854.3U CN202220452854U CN217062456U CN 217062456 U CN217062456 U CN 217062456U CN 202220452854 U CN202220452854 U CN 202220452854U CN 217062456 U CN217062456 U CN 217062456U
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Abstract
The application relates to the technical field of batteries, especially, relate to a exempt from to weld sealed nail and square aluminum-shell battery, exempt from to weld sealed nail and include: a body member formed with a through passage; a seal member, wherein a containing groove is formed on the main body member, the seal member is arranged in the containing groove, and the seal member is abutted against the inner wall surface of the containing groove; the fastener penetrates through the penetrating channel, and one end of the fastener enters the accommodating groove and is connected with the sealing element; the fastener is connected with the sealing element through mutually matched threads. The application provides a exempt from to weld sealed nail compares in traditional notes liquid stopple + notes liquid hole lid mutual welded mode, does not have welded structure, effectively avoids welding quality poor, the low sealed poor condition of effect that leads to annotating the liquid hole of welding precision, and then can reduce the disability rate of electric core.
Description
Technical Field
The application relates to the technical field of batteries, in particular to a welding-free sealing nail and a square aluminum shell battery.
Background
At present, square batteries are increasingly applied to the automobile and energy storage industry, the shell is generally a steel shell or an aluminum shell, and the square aluminum shell battery gradually becomes the mainstream along with the driving of the pursuit of the market for energy density and the progress of the production process.
The square aluminum shell battery can seal the liquid injection hole after completing liquid injection, the existing sealing mode is that the liquid injection hole plug and the liquid injection hole cover reach the sealing effect through laser welding, the liquid injection hole cover is smaller in diameter, the corner is easy to warp due to non-parallel during press-fitting welding, poor air tightness failure is caused during welding, and the electric core is scrapped.
SUMMERY OF THE UTILITY MODEL
An object of this application is to provide a exempt from to weld sealed nail and square aluminum hull battery to solve the technical problem that sealed condition of failing appears easily in the notes liquid hole of the square aluminum hull battery that exists among the prior art to a certain extent.
The application provides a welding-free seal nail, include: a body member formed with a through passage;
a seal member provided with a housing groove, the seal member being disposed in the housing groove, the seal member abutting against an inner wall surface of the housing groove;
the fastener penetrates through the penetrating channel, and one end of the fastener enters the accommodating groove and is connected with the sealing element;
the fastener is coupled to the seal.
In the above technical solution, further, the sealing element has a trapezoid body structure, the sealing element includes a first surface and a second surface which are arranged to face each other, and the area of the first surface is smaller than that of the second surface;
a side wall surface is arranged between the first surface and the second surface; a side wall surface of the sealing member is in contact with an inner wall surface of the accommodating groove;
the sealing element moves in the axial direction of the fastener in the receiving groove when the fastener rotates.
In any one of the above technical solutions, further, a part of an inner wall surface of the accommodating groove, which is close to the opening of the accommodating groove, is formed as a guide wall; the thickness of the guide wall gradually decreases in a direction from the bottom of the receiving groove to the opening of the receiving groove.
In any one of the above technical solutions, further, a connecting groove is formed on the first surface, and an internal thread is formed on an inner wall surface of the connecting groove;
the part of the fastener, which is positioned in the accommodating groove, is provided with an external thread matched with the internal thread.
In any of the above technical solutions, further, the welding-free sealing nail further includes a sealing gasket, and the sealing gasket is disposed on the first surface.
In any of the above technical solutions, further, the welding-free sealing nail further includes a limiting member, and an area of the limiting member is larger than a surface area of the main body member;
the body component is arranged on one side surface of the limiting component, and the body component and the limiting component are of an integrated structure.
In any one of the above technical solutions, further, the limiting member is formed with an annular groove, and the annular groove is provided with a sealing ring.
In any of the above solutions, further, the main body member and the sealing member are both made of an aluminum alloy material, and the hardness of the sealing member is greater than that of the main body member.
The application also provides a square aluminum-shell battery, including any one of the above technical schemes the welding-free seal nail, therefore, all beneficial technical effects of having this welding-free seal nail are no longer repeated here.
In the above technical solution, further, the square aluminum-shell battery is provided with a liquid injection hole, and the main body member is inserted into the liquid injection hole.
Compared with the prior art, the beneficial effects of this application do:
the application provides a exempt from to weld sealed nail includes: a body member formed with a through passage; the main body component is provided with a containing groove, the sealing element is arranged in the containing groove, and the sealing element is abutted against the inner wall surface of the containing groove; the fastener penetrates through the penetrating channel, and one end of the fastener enters the accommodating groove and is connected with the sealing element; the fastener and the sealing piece are connected through mutually matched threads.
The application provides a exempt from to weld sealed nail compares in traditional notes liquid stopple + notes liquid hole lid mutual welded mode, does not have welded structure, effectively avoids welding quality poor, the low poor condition of the sealed effect that leads to annotating the liquid hole of welding precision, and then can reduce the disability rate of electric core.
The application provides a square aluminum shell battery, including the aforesaid exempt from to weld sealed nail, therefore, can enough seal effectively to the notes liquid hole of square aluminum shell battery through this exempt from to weld sealed nail, can also guarantee to exempt from to weld sealed nail and the stability between the square aluminum shell battery, avoid exempting from to weld sealed nail to drop into and annotate liquid hole and electric core.
Drawings
In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural view of a welding-free seal nail provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a welding-free seal nail provided in the embodiment of the present application.
Reference numerals:
1-body member, 2-receiving groove, 3-fastener, 4-sealing element, 401-connecting groove, 402-first surface, 403-second surface, 5-limiting member, 6-sealing gasket, 7-sealing ring.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.
The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application.
All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.
A welding-free sealing nail and a prismatic aluminum-can battery according to an embodiment of the present application will be described below with reference to fig. 1 and 2.
Referring to fig. 1 and 2, an embodiment of the present application provides a welding-free sealing nail for sealing a pour hole (hereinafter, referred to as a pour hole) of a rectangular aluminum-can battery, the welding-free sealing nail including: main body member 1, sealing member 4 and fastener 3, main body member 1 has a cylindrical structure, the shape of main body member 1 is similar to the shape of annotating the liquid hole, make main body member 1 can plug into and the card establishes in annotating the liquid hole, the part of main body member 1 that pegs graft to in annotating the liquid hole forms holding tank 2, specifically, in the state as shown in fig. 1, the lower surface of main body member 1 inwards caves in so as to form holding tank 2, sealing member 4 sets up in holding tank 2, and the lateral wall face of sealing member 4 contacts with the wall face of holding tank 2.
The upper surface of main part component 1 is inwards sunken in order to form and wears to establish the passageway, wears to establish the passageway and communicates with holding tank 2, and fastener 3 wears to establish in wearing to establish the passageway and the tip of fastener 3 gets into in the holding tank 2 and is connected with sealing member 4.
Further, a connecting groove 401 is formed at a central position of the first surface 402 of the sealing member 4, an inner wall of the connecting groove 401 is formed with an inner thread, an outer wall surface of a portion of the length of the fastening member 3 near the end portion is provided with an outer thread, and the outer thread of the fastening member 3 is adapted to the inner thread of the connecting groove 401, so that the fastening member 3 and the sealing member 4 are connected to each other in a threaded connection manner. The surface of the portion of the fastener 3 inserted into the insertion passage of the body member 1 is smooth so that the fastener 3 can rotate relative to the body member 1 about its own axis.
Preferably, the fastener 3 is a hexagon socket head cap screw, and the penetrating channel is distributed in a T shape, so that after the fastener 3 is penetrated in the penetrating channel, the end cap of the fastener 3 can be flush with the surface of the main body member 1 or lower than the surface of the main body member 1, and interference with other structures of the square aluminum-shell battery is avoided.
Further, the sealing member 4 has a trapezoid structure, the sealing member 4 specifically includes a first surface 402 and a second surface 403 which are arranged in parallel to each other, and the area of the first surface 402 is smaller than the area of the second surface 403, and also includes four side wall surfaces which are connected in sequence, preferably, each side wall surface is an isosceles trapezoid, the upper base of the isosceles trapezoid is connected with the edge of the first surface 402, the lower base of the isosceles trapezoid is connected with the edge of the second surface 403, and the four side walls of the sealing member 4 are in contact with and attached to the inner wall of the receiving groove 2.
Further, a section of the inner wall surface of the receiving groove 2 near the opening of the receiving groove 2 is formed as a guide wall, and in the state shown in fig. 1, the thickness of the guide wall is gradually reduced along the direction from the top to the bottom, so that the inner wall surface of the receiving groove 2 near the opening of the receiving groove 2 forms a slope, and the slope can be closely attached to the side wall of the sealing member 4 as much as possible, and since the shape of the sealing member 4 is adapted to the shape of the inner wall surface of the receiving groove 2, the receiving groove 2 forms a space of a trapezoidal body, so that the sealing member 4 can be confined in the receiving groove 2, when the fastening member 3 is rotated, the sealing member 4 not only does not rotate with the fastening member 3, but also can convert the rotational motion of the fastening member 3 into its own linear motion, that is, when the fastening member 3 is rotated using the screwdriver, by adjusting the fastening member 3 clockwise or counterclockwise, the seal 4 can be raised or lowered within the accommodation groove 2.
Further, preferably, the main body member 1 is made of AL3003H14, and the sealing member 4 is made of AL3003H18, so that the hardness of the sealing member 4 is greater than that of the main body member 1, as shown in fig. 2, during the process of rotating the fastening member 3 to make the sealing member 4 rise in the receiving groove 2, the side wall of the sealing member 4 continuously presses the side wall of the receiving groove 2, so that the outer wall of the receiving groove 2 expands outwards, so that at least the part of the main body member 1 where the receiving groove 2 is provided is tightly attached to the pouring hole, and the purpose of plugging the pouring hole by the welding-free sealing nail is achieved.
Further, the welding-free sealing nail that this application provided still includes stop member 5, and stop member 5 has the flat structure, and main part member 1 sets up the lower surface at stop member 5, and preferably, main part member 1 has the integral type structure with stop member 5 to stop member 5's area is greater than annotates the area of liquid mouth, makes stop member 5 set up at the opening part of annotating the liquid hole, thereby can avoid main part member 1 and the sealing member 4 of being connected with main part member 1 to fall into in annotating the liquid hole. In addition, the main body member 1, the space between the main body member 1 and the limiting member 5 and the space between the main body member 1 and the sealing element 4 are not required to be welded, so that the situation that the airtightness fails due to poor welding caused by factors such as the size and the material of each structure during welding is effectively avoided.
Further, the lower surface of the limiting member 5 is formed with an annular groove, the annular groove is arranged around the main body member 1, and a sealing ring 7 is arranged in the annular groove, preferably, the sealing ring 7 can be a sealing gasket 6, the welding-free sealing nail is arranged in the square aluminum shell battery, and after the main body member 1 is positioned in the liquid injection hole, the sealing ring 7 is tightly clamped in the limiting member 5 and the square aluminum shell battery, and the sealing ring 7 is definitely clamped in the annular groove in an interference manner due to slight deformation caused by extrusion, so as to ensure the sealing effect between the welding-free sealing nail and the square aluminum shell battery.
Further, first surface 402 of sealing member 4 is provided with sealed 6 in order pasting or other forms, and sealed 6 can be the rubber gasket, and when sealing member 4 rose to the limit in holding tank 2, sealed 6 is set up between the bottom wall face of sealing member 4 and holding tank 2 and can block up the gap between fastener 3 and the wear channel to ensure this exempt from to weld the leakproofness of seal nail itself.
The above is a preferred embodiment of the present application, and when the sealing element 4 is inverted in the receiving groove 2, that is, the second surface 403 is above and the first surface 402 is below, the thickness of the guiding wall of the receiving groove 2 gradually increases from top to bottom, and the side wall of the sealing element 4 is attached to the side wall and the guiding wall of the receiving groove 2, which can also achieve the same or similar effect.
To sum up, the welding-free seal nail that this application provided compares in the mutual welded mode of traditional notes liquid stopple + notes liquid hole lid, does not have welded structure, effectively avoids welding quality poor, the low sealed poor condition of effect that leads to annotating the liquid hole of welding precision, and then can reduce the disability rate of electric core. In addition, the welding-free sealing nail that this application provided, body member and stop component play the effect of annotating liquid hole match, notes liquid handhole door jointly, and both have a body structure, effectively avoid this welding-free sealing nail whole or partial structure to fall into the inside risk of electric core.
The embodiment of the application also provides a square aluminum-shell battery, which comprises the welding-free sealing nail in any embodiment, so that all beneficial technical effects of the welding-free sealing nail are achieved, and the details are not repeated.
Further, the position of annotating the liquid hole is formed cavedly in the formation of square aluminum-shell battery to sunken diameter or width are greater than annotate the aperture in liquid hole, and the shape of exempting from the spacing member of welding seal nail is the same with sunken shape, make spacing member can imbed and spacing in sunken, make on the one hand exempt from the main part member of welding seal nail to plug into in annotating the liquid hole, and on the other hand spacing member can block in sunken, avoids exempting from the welding seal nail to fall into in annotating the liquid hole.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. A welding-free seal nail, comprising:
a body member formed with a through passage;
a seal member, which is provided in a housing groove communicating with the penetration passage, and which abuts against an inner wall surface of the housing groove;
the fastener penetrates through the penetrating channel, and one end part of the fastener enters the accommodating groove and is connected with the sealing element;
the fastener is coupled to the seal.
2. The weld-free seal nail of claim 1, wherein the seal has a trapezoidal body structure, the seal including a first surface and a second surface disposed facing each other, the first surface having an area smaller than an area of the second surface;
a side wall surface is arranged between the first surface and the second surface; a side wall surface of the sealing member is in contact with an inner wall surface of the accommodating groove;
the sealing element moves in the axial direction of the fastener in the receiving groove when the fastener rotates.
3. The welding-free sealing nail according to claim 1, wherein a part of an inner wall surface of the receiving groove near the opening of the receiving groove is formed as a guide wall; the guide wall has a thickness gradually decreasing in a direction from the bottom of the receiving groove to the opening of the receiving groove.
4. The welding-free sealing nail according to claim 2, wherein the first surface is formed with a connecting groove, an inner wall surface of which is formed with an internal thread;
the part of the fastener, which is located in the accommodating groove, is provided with an external thread matched with the internal thread.
5. The weld-free sealing nail of claim 2, further comprising a gasket disposed on the first surface.
6. The weld-free sealing nail of any one of claims 1 to 5, further comprising a stopper member having an area greater than a surface area of the body member;
the main body component is arranged on one side surface of the limiting component, and the main body component and the limiting component are of an integrated structure.
7. The weld-free nail according to claim 6, wherein the stopper member is formed with an annular groove provided with a sealing ring.
8. The weld-free sealed nail according to any one of claims 1 to 5, wherein the body member and the seal member are each made of an aluminum alloy material, and the hardness of the seal member is greater than that of the body member.
9. A prismatic aluminum-can battery comprising the welding-free sealing nail of any one of claims 1 to 8.
10. The square aluminum can battery as recited in claim 9, wherein the square aluminum can battery is provided with a liquid injection hole into which the body member is inserted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220452854.3U CN217062456U (en) | 2022-03-03 | 2022-03-03 | Welding-free sealing nail and square aluminum shell battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220452854.3U CN217062456U (en) | 2022-03-03 | 2022-03-03 | Welding-free sealing nail and square aluminum shell battery |
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| Publication Number | Publication Date |
|---|---|
| CN217062456U true CN217062456U (en) | 2022-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220452854.3U Active CN217062456U (en) | 2022-03-03 | 2022-03-03 | Welding-free sealing nail and square aluminum shell battery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115632201A (en) * | 2022-10-26 | 2023-01-20 | 厦门海辰储能科技股份有限公司 | Battery cover plate and battery thereof |
-
2022
- 2022-03-03 CN CN202220452854.3U patent/CN217062456U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115632201A (en) * | 2022-10-26 | 2023-01-20 | 厦门海辰储能科技股份有限公司 | Battery cover plate and battery thereof |
| CN115632201B (en) * | 2022-10-26 | 2024-01-23 | 厦门海辰储能科技股份有限公司 | Battery cover plate and battery thereof |
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