A sealing device

Abstract

The application provides a sealing device, belonging to the technical field of sealing accessories. The sealing device comprises a suction cup and a movable piece. The suction cup comprises a connecting part and a suction cup part. The suction cup part is arranged on one side of the connecting part along a first direction. The side of the suction cup part away from the connecting part defines a clearance slot. The connecting part is provided with a mounting hole penetrating along the first direction. The mounting hole is in communication with the clearance slot. The movable piece is movably arranged on the side of the connecting part away from the suction cup part along the first direction. One end of the movable piece is accommodated in the mounting hole and is sealingly connected with the hole wall of the mounting hole. The sealing device provided by the application can be applied to a single battery. The injection hole of the single battery is sealed by the suction cup part, and the inside of the single battery is isolated from the external environment. Since the suction cup part will not be inserted into the injection hole, i.e. the suction cup part will not rub against the hole wall of the injection hole, wear of the suction cup part is prevented, so that the sealing device can be repeatedly used for multiple times, and the use cost is reduced.

Description

Technical Field

[0001] This application relates to the field of sealing fittings technology, and more particularly to a sealing device. Background Technology

[0002] With the rapid development of power batteries, the control of the battery manufacturing process is also being strengthened. Moisture can severely damage battery performance and may even cause an explosion in severe cases. Therefore, after the assembled battery has been baked at high temperature, it is generally necessary to use sealing nails to isolate it from the air. When using this method, corrosion-resistant rubber nails are inserted into the battery's electrolyte injection hole to isolate the inside of the battery cell from the external environment.

[0003] However, there is a risk of introducing foreign objects into the battery cell during the use of the glue nails. In addition, since the glue nails come into contact with the electrolyte after being inserted into the battery, they are generally difficult to reuse. Summary of the Invention

[0004] In view of this, the purpose of this application is to overcome the shortcomings of the prior art and provide a sealing device.

[0005] This application provides the following technical solution: a sealing device having a first direction, comprising: A suction cup includes a connecting part and a suction cup part. The suction cup part is disposed on one side of the connecting part along the first direction. The side of the suction cup part opposite to the connecting part defines a clearance groove. The connecting part is provided with a mounting hole that extends through the first direction and communicates with the clearance groove. A movable component is movably disposed along the first direction on the side of the connecting portion opposite to the suction cup portion. One end of the movable component is received in the mounting hole and is sealed to the wall of the mounting hole.

[0006] In some embodiments, the inner diameter of the suction cup portion gradually increases from the end near the connecting portion to the end away from the connecting portion.

[0007] In some embodiments, the movable component includes a movable part and a sealing part, the sealing part being disposed on the side of the movable part facing the suction cup; The movable part is located on the side of the connecting part away from the suction cup part, and the sealing part is at least partially received in the mounting hole and is sealed to the hole wall of the mounting hole.

[0008] In some embodiments, the connecting portion has a groove on the side facing the suction cup portion, the groove connects the mounting hole and the clearance groove, the inner diameter of the groove is larger than the inner diameter of the mounting hole, and the sealing portion is spaced apart from the sidewall of the groove.

[0009] In some embodiments, the sealing device includes an elastic element received in the groove, the groove having a bottom facing the suction cup along the first direction; The movable part includes a limiting part, which is disposed on the side of the sealing part away from the movable part, and is received in the groove; The elastic element is sleeved on the sealing part, with one end of the elastic element abutting against the bottom of the groove and the other end of the elastic element abutting against the limiting part.

[0010] In some embodiments, the outer diameter of the limiting portion is larger than the inner diameter of the mounting hole, and the outer diameter of the limiting portion is smaller than the inner diameter of the groove.

[0011] In some embodiments, the movable portion has a first position and a second position relative to the connecting portion; In the first position, the side of the movable part facing the connecting part abuts against the side of the connecting part away from the suction cup part; In the second position, the movable part and the connecting part are spaced apart.

[0012] In some embodiments, the elastic element is in a compressed state when in the first position; In the second position, the elastic element is in a compressed state or its original length state.

[0013] In some embodiments, the sealing device further includes a retaining ring disposed on the side of the suction cup portion near the connecting portion.

[0014] In some embodiments, the suction cup portion is an elastic suction cup.

[0015] The embodiments of this application have the following advantages: The sealing device provided by this application can be applied to single-cell batteries. The suction cup is pressed and adsorbed onto the top cover of the single-cell battery, thereby expelling the gas in the clearance groove. Under the pressure of external air, the suction cup is tightly adsorbed onto the top cover of the single-cell battery, thus sealing the electrolyte filling hole and isolating the inside of the single-cell battery from the external environment. Since the suction cup does not insert into the electrolyte filling hole, i.e., the suction cup does not rub against the hole wall, it prevents wear on the suction cup, allowing the sealing device to be reused multiple times, reducing usage costs. Furthermore, by lifting the movable part, the movable part is displaced relative to the suction cup, allowing external air to enter the clearance groove through the mounting hole. This makes the air pressure in the clearance groove equal to the air pressure outside the suction cup, allowing the sealing device to be removed from the carrier surface, improving the ease of use of the sealing device.

[0016] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This illustration shows a schematic structural diagram of a sealing device provided by some embodiments of this application from one perspective; Figure 2 It shows Figure 1 Cross-sectional view of section AA.

[0019] Explanation of key component symbols: 100-Suction cup; 110-Connecting part; 120-Suction cup part; 121-Leaning groove; 111-Mounting hole; 200-Moving part; 300-Fixing ring; 210-Moving part; 220-Sealing part; 112-Groove; 400-Elastic part; 113-Groove bottom; 230-Limiting part; 122-Groove wall.

[0020] Z - First direction. Detailed Implementation

[0021] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0022] It should be noted that when an element is said to be "fixed" to another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly" on another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0023] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the template description is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] like Figure 1 and Figure 2 As shown, some embodiments of this application provide a sealing device having a first direction Z, the sealing device including a suction cup 100 and a movable member 200.

[0027] The suction cup 100 includes a connecting portion 110 and a suction cup portion 120. The connection method between the connecting portion 110 and the suction cup portion 120 includes any one of bonding, threaded connection, snap-fit, or integral molding. In this embodiment, the connecting portion 110 and the suction cup portion 120 are integrally connected to ensure the overall strength and stability of the suction cup 100.

[0028] The suction cup portion 120 is disposed on one side of the connecting portion 110 along the first direction Z. The side of the suction cup portion 120 away from the connecting portion 110 defines a clearance groove 121, and the opening of the clearance groove 121 is located at one end of the suction cup portion 120 away from the connecting portion 110.

[0029] It should be noted that the suction cup portion 120 has a groove wall 122 on the side opposite to the connecting portion 110 along the first direction Z.

[0030] When the suction cup 100 is adsorbed onto the surface of a carrier (such as a single cell), the groove wall 122 at least partially abuts against the surface of the carrier, thereby squeezing out the gas in the relief groove 121 to form a pressure difference between the relief groove 121 and the outer side of the suction cup 100, so that the side of the suction cup 100 away from the carrier abuts against the surface of the carrier under the action of external air pressure, thereby ensuring the stability of the adsorption between the suction cup 100 and the carrier.

[0031] In addition, the connecting part 110 is provided with a mounting hole 111 that extends through the first direction Z. The mounting hole 111 communicates with the relief groove 121, and the axis of the mounting hole 111 coincides with the axis of the relief groove 121.

[0032] In this embodiment, the movable member 200 is movably disposed along the first direction Z on the side of the connecting portion 110 away from the suction cup portion 120. One end of the movable member 200 is received in the mounting hole 111, that is, the movable member 200 and the hole wall of the mounting hole 111 are slidably connected along the first direction Z, and the movable member 200 and the hole wall of the mounting hole 111 are sealed to ensure the sealing quality of the connection between the movable member 200 and the connecting portion 110, and to prevent external gas from entering the relief groove 121 through the mounting hole 111 when the suction cup portion 120 is adsorbed on the carrier surface, thereby ensuring the stability of the suction cup portion 120 adsorbed on the carrier surface.

[0033] The sealing device provided in this application can be applied to a single-cell battery. The suction cup portion 120 is pressed and adsorbed onto the top cover, thereby expelling gas from the clearance groove 121. This allows the suction cup portion 120 to firmly adhere to the top cover of the single-cell battery under the pressure of external air, thus sealing the electrolyte filling hole of the single-cell battery and isolating the battery's interior from the external environment. Furthermore, since the suction cup portion 120 does not insert into the electrolyte filling hole, it does not rub against the hole wall, preventing wear and tear on the suction cup portion 120. This allows the sealing device to be reused multiple times, reducing operating costs.

[0034] In addition, by lifting the movable part 200, the movable part 200 is displaced relative to the suction cup 100, so that external air can enter the relief groove 121 through the mounting hole 111, so that the air pressure in the relief groove 121 is equal to the air pressure outside the suction cup 100, thereby removing the sealing device from the carrier surface and improving the ease of use of the sealing device.

[0035] like Figure 2 As shown, in some embodiments of this application, the inner diameter of the suction cup portion 120 gradually increases from one end near the connecting portion 110 to one end away from the connecting portion 110, so as to form a suction cup portion 120 with a horn structure.

[0036] It is understandable that by increasing the inner diameter of the end of the suction cup portion 120 that is away from the connecting portion 110, the effective sealing area of ​​the suction cup portion 120 can be increased, which can not only improve the adaptability of the suction cup portion 120, but also improve the stability of the suction cup portion 120 adsorption to the carrier surface.

[0037] like Figure 2 As shown, in some embodiments of this application, the sealing device further includes a retaining ring 300. The retaining ring 300 is disposed on the side of the suction cup portion 120 near the connecting portion 110, so as to provide support and limit the end of the suction cup portion 120 near the connecting portion 110. It should be noted that the axis of the retaining ring 300 coincides with the axis of the suction cup portion 120. The retaining ring 300 is embedded in the suction cup portion 120, which not only ensures the aesthetics of the sealing device, but also provides protection for the retaining ring 300 through the suction cup portion 120.

[0038] In other words, the inner diameter of the retaining ring 300 is larger than the inner diameter of the end of the suction cup portion 120 near the connecting portion 110, and the outer diameter of the retaining ring 300 is smaller than the outer diameter of the end of the suction cup portion 120 near the connecting portion 110.

[0039] The fixing ring 300 is a metal ring, which provides a limiting effect on the end of the suction cup part 120 near the connecting part 110 to ensure the stability of the overall structure of the suction cup part 120, ensure that the suction cup part 120 can return to its initial state when it is removed from the carrier, reduce the deformation of the suction cup part 120, thereby improving the service life of the suction cup part 120 and ensuring the stability of the adsorption connection between the suction cup part 120 and the carrier.

[0040] like Figure 1 As shown, in some embodiments of this application, the movable part 200 includes a movable part 210 and a sealing part 220. The connection method between the two includes any one of snap-fit, adhesive, threaded connection or integral molding, which can be specifically set according to the actual situation.

[0041] In this embodiment, the sealing part 220 is disposed on the side of the movable part 210 facing the suction cup 100, and the sealing part 220 is integrally connected with the movable part 210 to improve the overall strength and stability of the movable part 200.

[0042] The movable part 210 is located on the side of the connecting part 110 away from the suction cup part 120, that is, the outer diameter of the movable part 210 is larger than the inner diameter of the mounting hole 111, thereby limiting the movable part 210 along the first direction Z through the connecting part 110. The sealing part 220 is at least partially received in the mounting hole 111 and seals the sealing part 220 with the hole wall of the mounting hole 111.

[0043] like Figure 2 As shown, in some embodiments of this application, the connecting portion 110 has a groove 112 on the side facing the suction cup portion 120. The groove 112 connects the mounting hole 111 and the clearance groove 121. The inner diameter of the groove 112 is larger than the inner diameter of the mounting hole 111, and the groove 112 is a cylindrical groove. The axis of the groove 112 coincides with the axis of the mounting hole 111.

[0044] In this embodiment, the movable part 210 is at least partially housed in the groove 112. It is understood that the movable part 210 is spaced apart from the sidewall of the groove 112. By providing the groove 112, the length of the mounting hole 111 along the first direction Z is reduced, thereby reducing the contact area between the wall of the mounting hole 111 and the movable part 210. This ensures the sealing quality between the movable part 210 and the wall of the mounting hole 111 while improving the flexibility of the movable part 210 relative to the connecting part 110.

[0045] like Figure 2 As shown, in some embodiments of this application, the sealing device includes an elastic element 400 received in the groove 112, the groove 112 having a groove bottom 113 facing the suction cup 100 along the first direction Z. It is understood that the length of the elastic element 400 along the first direction Z is less than the length of the groove 112 along the first direction Z.

[0046] The elastic element 400 is a spring or elastic rubber. In this embodiment, the elastic element 400 is a spring.

[0047] In this embodiment, the movable member 200 includes a limiting part 230, which is disposed on the side of the sealing part 220 away from the movable part 210. The limiting part 230 is received in the groove 112, and the limiting part 230 is spaced from the side wall of the groove 112 to avoid friction between the limiting part 230 and the side wall of the groove 112 during the movement of the movable member 200 relative to the connecting part 110 in the first direction Z, thereby ensuring the flexibility of the movable member 200 in moving relative to the connecting part 110.

[0048] Among them, the limiting part 230 is a limiting rod or a limiting plate.

[0049] In this embodiment, the elastic element 400 is sleeved on the sealing part 220, one end of the elastic element 400 abuts against the bottom of the groove 113, and the other end of the elastic element 400 abuts against the limiting part 230, so as to provide an elastic limiting effect on the limiting part 230 through the elastic element 400.

[0050] In some embodiments of this application, the movable part 210 has a first position and a second position relative to the connecting part 110.

[0051] It should be noted that the first position refers to the position where the sealing device is adsorbed on the carrier. At this time, the suction cup part 120 is adsorbed on the surface of the carrier, the movable part 210 abuts against the connecting part 110, and the elastic element 400 is in a compressed state. At this time, the elastic element 400 stores elastic potential energy.

[0052] In addition, the second position refers to the initial state of the sealing device. At this time, there is a gap between the moving part 210 and the connecting part 110, the elastic element 400 is in a compressed or original state, and external gas can enter the relief groove 121 through the mounting hole 111. At this time, the sealing device can be removed from the carrier surface.

[0053] It is understood that when the movable part 210 is in the first position relative to the connecting part 110, the side of the movable part 210 facing the connecting part 110 abuts against the side of the connecting part 110 away from the suction cup part 120 to form a sealed connection structure, so as to prevent external gas from entering the relief groove 121 through the gap between the connecting part 110 and the movable part 210, so as to ensure the stability of the suction cup part 120 adsorbing on the carrier surface.

[0054] When the movable part 210 is in the second position relative to the connecting part 110, there is a gap between the movable part 210 and the connecting part 110. At this time, the elastic member 400 is compressed and stores elastic potential energy. When the external force acting on the movable part 210 is removed, the movable member 200 moves relative to the suction cup 100 under the elastic force of the elastic member 400 and returns to the initial state, that is, the movable part 210 is in the first position relative to the connecting part 110, so as to be re-adsorbed and sealed on the surface of the carrier (such as a single battery cell) by the sealing device.

[0055] In some embodiments of this application, the elastic element 400 is a corrosion-resistant spring to improve the service life of the elastic element 400.

[0056] like Figure 2 As shown, in some embodiments of this application, the outer diameter of the limiting part 230 is larger than the inner diameter of the mounting hole 111, and the outer diameter of the limiting part 230 is smaller than the inner diameter of the groove 112, so as to avoid the limiting part 230 from contacting the side wall of the groove 112 and causing friction.

[0057] In some embodiments of this application, the suction cup portion 120 is an elastic suction cup 100.

[0058] In some embodiments, the suction cup 100 and the movable part 200 are made of flexible corrosion-resistant materials, that is, the suction cup 100 is a flexible corrosion-resistant suction cup 100, and the movable part 200 is a flexible corrosion-resistant movable part 200.

[0059] For example, suction cup 100 is a rubber suction cup 100, and movable part 200 is a rubber part.

[0060] like Figure 2 As shown, in some embodiments of this application, the elastic member 400 is in a compressed state in the first position.

[0061] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limitations; therefore, other examples of exemplary embodiments may have different values.

[0062] 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.

[0063] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the protection scope of this application.

Claims

1. A sealing device having a first direction (Z), characterized in that, include: A suction cup (100) includes a connecting portion (110) and a suction cup portion (120). The suction cup portion (120) is disposed on one side of the connecting portion (110) along the first direction (Z). The suction cup portion (120) defines a clearance groove (121) on the side opposite to the connecting portion (110). The connecting portion (110) is provided with a mounting hole (111) that extends along the first direction (Z). The mounting hole (111) communicates with the clearance groove (121). The movable part (200) is movably disposed along the first direction (Z) on the side of the connecting part (110) away from the suction cup part (120). One end of the movable part (200) is received in the mounting hole (111) and is sealed to the hole wall of the mounting hole (111).

2. The sealing device according to claim 1, characterized in that, The inner diameter of the suction cup portion (120) gradually increases from the end near the connecting portion (110) to the end away from the connecting portion (110).

3. The sealing device according to claim 1, characterized in that, The movable part (200) includes a movable part (210) and a sealing part (220), the sealing part (220) being disposed on the side of the movable part (210) facing the suction cup (100); The movable part (210) is located on the side of the connecting part (110) away from the suction cup part (120), and the sealing part (220) is at least partially received in the mounting hole (111) and is sealed to the hole wall of the mounting hole (111).

4. The sealing device according to claim 3, characterized in that, The connecting part (110) has a groove (112) on the side facing the suction cup part (120). The groove (112) connects the mounting hole (111) and the relief groove (121). The inner diameter of the groove (112) is larger than the inner diameter of the mounting hole (111). The sealing part (220) is spaced apart from the side wall of the groove (112).

5. The sealing device according to claim 4, characterized in that, The sealing device includes an elastic element (400) received in the groove (112), the groove (112) having a groove bottom (113) facing the suction cup (100) along the first direction (Z). The movable part (200) includes a limiting part (230), which is disposed on the side of the sealing part (220) away from the movable part (210) and is received in the groove (112). The elastic element (400) is sleeved on the sealing part (220), one end of the elastic element (400) abuts against the bottom of the groove (113), and the other end of the elastic element (400) abuts against the limiting part (230).

6. The sealing device according to claim 5, characterized in that, The outer diameter of the limiting part (230) is greater than the inner diameter of the mounting hole (111), and the outer diameter of the limiting part (230) is smaller than the inner diameter of the groove (112).

7. The sealing device according to claim 5, characterized in that, The movable part (210) has a first position and a second position relative to the connecting part (110); In the first position, the side of the movable part (210) facing the connecting part (110) abuts against the side of the connecting part (110) away from the suction cup part (120); In the second position, the movable part (210) and the connecting part (110) are spaced apart.

8. The sealing device according to claim 7, characterized in that, In the first position, the elastic element (400) is in a compressed state; In the second position, the elastic element (400) is in a compressed state or in its original length state.

9. The sealing device according to claim 1, characterized in that, The sealing device further includes a retaining ring (300), which is disposed on the side of the suction cup portion (120) near the connecting portion (110).

10. The sealing device according to claim 1, characterized in that, The suction cup part (120) is an elastic suction cup (100).

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