Rivet nut, box body, battery and electric device

Abstract

The utility model provides a rivet nut, a box body, a battery and an electric device, and belongs to the technical field of battery production. The rivet nut comprises a nut body, the nut body is provided with a mounting hole, the mounting hole comprises a top opening formed in the top of the nut body, at least one hollowed-out hole is formed in the side wall, surrounding the peripheral side of the mounting hole, of the nut body, and the hollowed-out hole is communicated with the mounting hole; the rivet nut further comprises a first sealing part arranged on the side wall of the nut body, and the first sealing part at least seals the hollow hole. According to the rivet pulling assembly, the problem that the rivet pulling assembly is prone to rusting in the using process can be effectively solved.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing technology, and in particular to a rivet nut, a housing, a battery, and an electrical device. Background Technology

[0002] Rivet nuts are commonly used in fastening applications in the manufacturing of sheet metal, pipes, and other materials, such as in battery assembly. During assembly, the rivet nut is inserted into the object to be connected, and then a fastener is screwed into the rivet nut's mounting hole. A certain pulling force is applied to the fastener, causing it to move towards the top of the rivet nut. During this movement, the fastener exerts a pulling force on the rivet nut, causing it to deform and thus become riveted to the object.

[0003] Currently, the plating on the surface of rivet nuts is prone to peeling, making them susceptible to corrosion and thus affecting their reliability. Utility Model Content

[0004] This application aims to at least solve one of the technical problems existing in the background art. To this end, one object of this application is to provide a rivet nut, a housing, a battery, and an electrical device to improve the problem of rivet nuts being prone to corrosion.

[0005] An embodiment of the first aspect of this application provides a rivet nut, comprising: a nut body having a mounting hole including a top opening at the top of the nut body, and at least one perforated hole on the side wall of the nut body surrounding the mounting hole, the perforated hole communicating with the mounting hole; the rivet nut further comprising: a first sealing part disposed on the side wall of the nut body, the first sealing part at least sealing the perforated hole.

[0006] In the technical solution of this application embodiment, a perforated hole communicating with the mounting hole is provided on the side wall of the nut body. Compared with the top opening, the distance from the perforated hole to the bottom of the mounting hole is shorter. During the electroplating process, compared with the electroplating solution entering the mounting hole from the top opening, the path from the perforated hole to the bottom of the mounting hole is shorter. This can improve the problem of insufficient metal ion supply to the bottom of the mounting hole due to the excessively long path of the electroplating solution, resulting in an excessively thin plating layer at the bottom of the mounting hole. Thus, the plating layer will not peel off due to being too thin, improving the problem of corrosion of the rivet nut caused by easy plating layer peeling. Furthermore, the sealing of the side wall surrounding the mounting hole is achieved by assembling the first sealing part with the perforated hole. During the electroplating process, the first sealing part does not seal the perforated hole; after the electroplating is completed, the first sealing part seals the perforated hole. This can both improve the problem of easy corrosion of the rivet nut and prevent leakage through the perforated hole communicating with the mounting hole during the use of the rivet nut.

[0007] In some embodiments, the sidewall of the nut body surrounding the mounting hole includes a deformation zone, and a perforated hole is disposed in the deformation zone. The distance between the deformation zone and the top of the nut body is less than the distance between the deformation zone and the bottom of the nut body along the direction from the top to the bottom of the nut body. This shortens the path of the electroplating solution to the bottom of the mounting hole, improving the problem of excessively thin plating at the bottom of the mounting hole. Furthermore, the perforated hole makes the deformation zone thinner, thus making it easier to deform and expanding the application range of rivet nuts.

[0008] In some embodiments, the wall thickness of the deformation zone gradually increases along the direction from the top to the bottom of the nut body. This results in a gradient change in the wall thickness of the deformation zone, further enhancing the deformation effect of the deformation zone.

[0009] In some embodiments, the distance between the perforated hole and the top of the nut body is greater than the distance between the perforated hole and the bottom of the nut body in the direction from the top of the nut body to the bottom. This further shortens the distance the plating solution flows from the perforated hole into the mounting hole to the bottom of the mounting hole, thereby further improving the problem of the plating layer being too thin at the bottom of the mounting hole.

[0010] In some embodiments, there are multiple perforations, which are arranged at intervals along the circumference of the mounting hole. This allows the electroplating solution to enter the mounting hole circumferentially through multiple different perforations, increasing the amount of electroplating solution flowing into the mounting hole and further improving the electroplating effect. Furthermore, because the multiple perforations are arranged circumferentially around the mounting hole, the electrolyte flowing into the mounting hole is distributed more evenly along the circumference, which helps improve the uniformity of the plating thickness on the inner wall of the mounting hole.

[0011] In some embodiments, a first sealing portion is disposed around the periphery of at least a portion of the sidewall of the nut body to seal the perforated hole. In this way, the first sealing portion can not only seal the perforated hole, but also protect the sidewall of the nut body it covers, thereby improving the corrosion problem of the sidewall of the nut body.

[0012] In some embodiments, the nut body includes: a flange; a connecting portion connected to the flange, a mounting hole penetrating the flange and at least a portion of the connecting portion, the end of the flange away from the connecting portion serving as the top of the nut body, wherein, in the case where the sidewall of the nut body includes a deformation zone, the deformation zone is located at the connecting portion and connected to the flange, the outer wall of the deformation zone is provided with a plurality of grooves, the plurality of grooves being arranged at intervals along the circumference of the deformation zone, and a first sealing portion further filling at least a portion of the grooves; the end face of the flange near the connecting portion is provided with a plurality of ribs, the plurality of ribs being arranged at intervals along the circumference of the mounting hole, and the rivet nut further includes: a second sealing portion, the second sealing portion being located at the end face of the flange near the connecting portion and filling at least a portion of the gap between adjacent ribs. Thus, after the rivet nut connects to the object to be installed, the leakage path formed by the gap between the ribs and the grooves can be reduced or even cut off by the first sealing portion and the second sealing portion, thereby enhancing the sealing performance of the rivet nut connecting to the object to be installed.

[0013] In some embodiments, the nut body further includes a bottom wall connected to the side wall of the nut body, the bottom wall of the nut body being located at the bottom of the nut body, and the bottom wall of the nut body sealing the end of the mounting hole away from the top opening. That is, the top of the mounting hole is open and the bottom is sealed, forming a blind hole structure, which improves the airtightness of the mounting hole and can further improve the problem of leakage through the mounting hole during the use of rivet nuts.

[0014] In some embodiments, the mounting hole further has a bottom opening located at the bottom of the nut body. The rivet nut also includes a third sealing portion, which is at least located at the bottom of the nut body to seal the bottom opening. Thus, during electroplating, the electroplating solution can flow into the mounting hole from the top opening and the perforated hole, and flow out of the mounting hole from the bottom opening. That is, the electroplating solution flows within the mounting hole, causing metal ions in the solution to be evenly distributed throughout the mounting hole. This results in a relatively uniform and consistent plating layer being formed at both the top and bottom of the mounting hole, improving the problem of easy plating peeling at the bottom of the mounting hole leading to rivet nut corrosion. Furthermore, the airtightness of the mounting hole is achieved by assembling the third sealing portion with the bottom opening of the mounting hole. During electroplating, the third sealing portion does not seal the bottom opening; after electroplating is completed, the third sealing portion seals the bottom opening. This not only improves the problem of easy corrosion of the rivet nut but also prevents leakage through the mounting hole during the use of the rivet nut.

[0015] In some embodiments, the third sealing portion includes: a bottom sealing portion covering the bottom of the nut body; and a side sealing portion connected to the bottom sealing portion and disposed around the outer periphery of the bottom sealing portion, the side sealing portion being disposed around the periphery of a portion of the sidewall of the nut body. Thus, the third sealing portion not only seals the bottom opening of the mounting hole but also covers a portion of the sidewall of the nut body, protecting the covered sidewall and improving the corrosion problem of the nut body's sidewall. Furthermore, the side sealing portion and the bottom sealing portion can form a sleeve structure to enclose the bottom of the nut body and seal the bottom opening, facilitating the installation and removal of the third sealing portion.

[0016] In some embodiments, the first sealing portion and the third sealing portion are integrally formed. In this way, after electroplating is completed, the first sealing portion and the third sealing portion with sealing perforation and bottom opening can be formed in the same assembly step, simplifying the preparation of the rivet nut.

[0017] In some embodiments, the material of the first sealing part is a thermoplastic material. This thermoplasticity allows the first sealing part to adhere to the side wall of the nut body after heating, thereby enhancing its sealing performance over the perforated hole.

[0018] An embodiment of the second aspect of this application provides a housing that includes the rivet nut described in the above embodiments.

[0019] In some embodiments, the enclosure further includes: an enclosure body; a cover that covers the enclosure body to form a receiving space for accommodating individual battery cells; and fasteners that pass through mounting holes to be threadedly connected to rivet nuts. The cover is connected to the enclosure body via the rivet nuts and fasteners. Since the rivet nuts in the above embodiments are not easily corroded, the stability of the connection between the cover and the enclosure body connected by the rivet nuts and fasteners in the above embodiments is improved. Simultaneously, sealing the perforated hole of the nut body with the first sealing part improves the airtightness of the mounting hole, mitigating leakage problems through the mounting hole, thus providing better protection for the battery cells and maintaining their stable performance.

[0020] An embodiment of the third aspect of this application provides a battery including a battery cell; and a housing as described in the above embodiments, the housing being used to house the battery cell.

[0021] An embodiment of the fourth aspect of this application provides a battery that includes the rivet nut described in the above embodiments.

[0022] An embodiment of the fifth aspect of this application provides an electrical device that includes the battery described in the above embodiments, the battery being used to provide electrical energy.

[0023] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0024] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0025] Figure 1 This is an exploded structural diagram of a battery according to some embodiments of this application;

[0026] Figure 2 This is a schematic front view of the rivet nut structure of some embodiments of this application;

[0027] Figure 3 This is one of the cross-sectional structural schematic diagrams of rivet nuts according to some embodiments of this application;

[0028] Figure 4 This is a cross-sectional structural schematic diagram of the assembly state of rivet nuts and fasteners according to some embodiments of this application;

[0029] Figure 5 This is a front view schematic diagram of the rivet nut according to some other embodiments of this application;

[0030] Figure 6 This is a second cross-sectional view of a rivet nut according to some embodiments of this application;

[0031] Figure 7 This is a front view schematic diagram of the rivet nut according to some embodiments of this application;

[0032] Figure 8 This is the third cross-sectional structural schematic diagram of the rivet nut of some embodiments of this application;

[0033] Figure 9 This is the fourth cross-sectional structural schematic diagram of a rivet nut according to some embodiments of this application.

[0034] Explanation of reference numerals in the attached figures:

[0035] Battery 100, nut body 101, mounting hole 101a, first sealing part 102, second sealing part 103, third sealing part 104, bottom sealing part 104a, side sealing part 104b.

[0036] Box body 10, lid 11, box body 12;

[0037] Battery cell 20, end cap 21, electrode terminal 21a, housing 22, electrode assembly 23, tab 23a;

[0038] Hole 30, flange 41, rib 41a, connecting part 42, deformation zone 42a;

[0039] Fastener 50;

[0040] Top opening 1, bottom opening 2. Detailed Implementation

[0041] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0042] 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 pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0043] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0044] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0045] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0046] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0047] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to 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 embodiments of this application.

[0048] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" 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. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0049] The rust resistance of rivet nuts is crucial to their reliability, especially when used in battery assembly, where the requirements for rust resistance are even higher. Insufficient rust resistance can cause rivet nuts to rust in humid or corrosive environments, affecting sealing performance and increasing the risk of water ingress or corrosion into the battery casing, thus impacting battery performance and lifespan.

[0050] To ensure a tight seal during assembly, rivet nuts feature a blind hole structure. A blind hole structure means that the bottom of the rivet nut's mounting hole is closed, while the top is open, allowing the fastener to be screwed into the hole through the opening. However, when electroplating this structure, the relatively large depth-to-width ratio of the mounting hole results in a longer path for the plating solution to flow to the bottom of the hole.

[0051] It is understandable that if the flow path of the electroplating solution is long, a large number of metal ions in the solution will be consumed as they come into contact with the inner wall of the mounting hole during the flow. As a result, when the electroplating solution flows to the bottom of the mounting hole, the concentration of metal ions is too low, resulting in insufficient plating thickness at the bottom of the mounting hole. This can lead to corrosion problems at the bottom of the mounting hole.

[0052] Based on the above considerations, a rivet nut was designed with a perforated hole on the side wall of the nut body, communicating with the mounting hole. Compared to a top opening, the distance between the perforated hole and the bottom of the mounting hole is shorter. During the electroplating process, compared to the electroplating solution entering the mounting hole from the top opening, the path from the perforated hole to the bottom of the mounting hole is shorter. This improves the problem of insufficient metal ion supply at the bottom of the mounting hole due to an excessively long path for the electroplating solution, which leads to an excessively thin plating layer. Thus, the plating layer will not peel off due to its thinness, improving the problem of rivet nut corrosion caused by easy plating peeling.

[0053] Furthermore, the sealing of the sidewall surrounding the mounting hole is achieved by assembling the first sealing part with the perforated hole. This ensures that the first sealing part does not seal the perforated hole during the electroplating process, but seals the perforated hole after electroplating is completed. This not only improves the problem of easy corrosion of the rivet nut, but also avoids the problem of leakage through the perforated hole that communicates with the mounting hole during the use of the rivet nut.

[0054] The rivet nuts disclosed in this application can be used, but are not limited to, for battery assembly. Batteries can be used, but are not limited to, in electrical devices such as vehicles, ships, or aircraft. A power system comprising the battery disclosed in this application can be used, which is beneficial for improving the stability and lifespan of battery performance.

[0055] This application provides an electrical device that uses a battery as a power source. The electrical device can be, but is not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc. Electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0056] Please refer to Figure 1 , Figure 1This is an exploded structural diagram of a battery provided in some embodiments of this application. The battery 100 includes a housing 10 and a battery cell 20, with the battery cell 20 housed within the housing 10. The housing 10 provides a space for the battery cell 20 and can have various structures. In some embodiments, the housing 10 may include a cover 11 and a housing body 12, with the cover 11 and housing body 12 overlapping each other, jointly defining a space for accommodating the battery cell 20. The housing body 12 may be a hollow structure with one open end, and the cover 11 may be a plate-like structure, covering the open side of the housing body 12 so that the cover 11 and housing body 12 jointly define the space; alternatively, both the cover 11 and housing body 12 may be hollow structures with one open side, with the open side of the cover 11 overlapping the open side of the housing body 12. Of course, the housing 10 formed by the cover 11 and housing body 12 can have various shapes, such as a cylinder, a cuboid, etc.

[0057] In battery 100, there can be multiple battery cells 20, which can be connected in series, in parallel, or in a mixed configuration. A mixed configuration means that multiple battery cells 20 are connected in both series and parallel. Battery 100 may also include other structures, such as a busbar component for electrical connection between multiple battery cells 20.

[0058] Each battery cell 20 can be a secondary battery or a primary battery; it can also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited to these. The battery cell 20 can be cylindrical, flat, cuboid, or other shapes.

[0059] Figure 2 This is a front view schematic diagram of the rivet nut structure of some embodiments of this application. Figure 3 This is one of the cross-sectional structural schematic diagrams of rivet nuts according to some embodiments of this application, wherein, Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure along the AA direction.

[0060] refer to Figure 2 as well as Figure 3 This application provides a rivet nut, including: a nut body 101, the nut body 101 having a mounting hole 101a, the mounting hole 101a including a top opening 1 at the top of the nut body 101, and at least one hollow hole 30 provided on the side wall of the nut body 101 surrounding the mounting hole 101a, the hollow hole 30 communicating with the mounting hole 101a; the rivet nut further includes: a first sealing part 102, provided on the side wall of the nut body 101, the first sealing part 102 at least sealing the hollow hole 30.

[0061] In other words, the sidewall of the nut body 101 can surround and form a mounting hole 101a, which extends from the top to the bottom of the nut body 101. In some embodiments, the bottom of the mounting hole 101a can be a closed structure, that is, the mounting hole 101a is a blind hole structure. In other embodiments, the bottom of the mounting hole 101a can also have an opening, that is, the mounting hole 101a is a through hole structure. It is understood that, in order to make the mounting hole 101a have better airtightness, when the mounting hole 101a is a through hole structure, a seal can be used to seal the bottom opening of the mounting hole 101a.

[0062] For example, the nut body 101 may include a flange 41 and a connecting portion 42. The flange 41 is connected to one end of the connecting portion 42. The mounting hole 101a passes through the flange 41 and at least part of the connecting portion 42 and extends in the direction from the flange 41 to the connecting portion 42. The top opening 1 may be provided at the end of the flange 41 away from the connecting portion 42.

[0063] The connecting portion 42 is used to form a connection with a fastener during rivet nut installation. The fastener is used to engage with the rivet nut to connect the object to be installed. Exemplarily, at least a portion of the inner wall of the mounting hole 101a of the connecting portion 42 may be threaded, allowing the fastener to extend into the mounting hole 101a of the connecting portion 42 and threadedly connect with the connecting portion. Exemplarily, the connecting portion 42 may be a screw.

[0064] The sidewall of the nut body 101 can be formed by the sidewall of the flange 41 and the sidewall of the connecting part 42. The perforated hole 30 can be provided on the sidewall of the connecting part 42. For example, the mounting hole 101a can be provided on the threaded part of the sidewall of the connecting part 42 or on the unthreaded part of the sidewall of the connecting part 42.

[0065] The cross-sectional shape of the mounting hole 101a can be circular along the extension direction perpendicular to the mounting hole 101a.

[0066] The shape of the perforated hole 30 may include, but is not limited to, at least one of the following: circle, ellipse, rhombus, or polygon.

[0067] When electroplating the rivet nut, the first sealing part 102 is not provided on the side wall of the nut body 101, allowing the electroplating solution to flow into the mounting hole 101a from the top opening 1 and the perforated hole 30. Since the perforated hole 30 is located on the side wall of the nut body 101, while the top opening 1 is located on the top of the nut body 101, the distance between the perforated hole 30 and the bottom of the mounting hole 101a is shorter than that between the top opening 1 and the perforated hole 30. This results in a shorter path for the solution to flow from the perforated hole 30 to the bottom of the mounting hole 101a. Consequently, less metal ion in the electroplating solution is consumed before reaching the bottom of the mounting hole 101a, resulting in a higher concentration of metal ions in the electroplating solution reaching the bottom of the mounting hole 101a. This improves the problem of a thin plating layer due to insufficient metal ion supply at the bottom of the mounting hole 101a.

[0068] After electroplating, a friction coefficient stabilizer can be injected into the mounting hole 101a through the top opening 1 and the perforation 30 to reduce and maintain a low friction coefficient inside the mounting hole 101a. Because the distance between the perforation 30 and the bottom of the mounting hole 101a is shorter, the amount of friction coefficient stabilizer injected into the bottom of the mounting hole 101a through the perforation 30 is not insufficient, thereby improving the uniformity of the friction coefficient stabilizer coated on the inner wall of the mounting hole 101a and mitigating the torque attenuation problem caused by large fluctuations in the friction coefficient of the inner wall of the mounting hole 101a.

[0069] After injecting the friction coefficient stabilizer, the first sealing part 102 can be assembled onto the side wall of the nut body 101. The first sealing part 102 can extend into the hollow hole 30 to seal the hollow hole 30, thereby achieving a seal on the hollow hole 30, or it can cover the side wall where the hollow hole 30 is located to achieve a seal on the hollow hole 30.

[0070] It is worth noting that, in order to show the positional relationship between the first sealing part 102 and the hollow hole 30, Figure 2 The first sealing part 102 shown has a certain degree of transparency. In the actual structure, the first sealing part 102 can be made of a material with a certain degree of transparency or an opaque material.

[0071] During assembly, the connecting portion 42 of the nut body 101 can be inserted into the first mounting hole of the first object to be installed, and the flange 41 protrudes from the top opening of the first mounting hole and abuts against the surface of the first object to be installed. (Reference) Figure 4 The fastener 50 is inserted into the mounting hole 101a through the top opening 1 and threaded onto the inner wall of the mounting hole 101a. The top of the fastener 50 protrudes from the top surface of the flange 41. By applying a certain riveting force upward to the top of the fastener 50, the weak point of the rivet nut deforms and, in conjunction with the flange 41, forms a clamping force on the first object to be installed.

[0072] After unscrewing the fastener 50, align the second mounting hole of the second object to be installed with the mounting hole 101a, and have the top surface of the flange 41 abut against the mounting surface of the second object to be installed. Then, screw the fastener 50 back into the second mounting hole and the mounting hole 101a to lock it with the connecting part 42, completing the assembly of the first and second objects to be installed. In some embodiments, the fastener 50 may include, but is not limited to, bolts, screws, or other structures with threads on their outer walls.

[0073] In the above technical solution, during the electroplating process, compared to the electroplating solution entering the mounting hole 101a from the top opening 1, the path from the hollow hole 30 into the mounting hole 101a and flowing to the bottom of the mounting hole 101a is shorter. This can improve the problem that the supply of metal ions to the bottom of the mounting hole 101a is insufficient due to the excessively long path of the electroplating solution, resulting in an excessively thin plating layer at the bottom of the mounting hole 101a. In this way, the plating layer will not peel off due to being too thin, thus improving the problem of corrosion of the rivet nut caused by easy peeling of the plating layer. Furthermore, the sealing of the sidewall surrounding the mounting hole is achieved by assembling the first sealing part 102 with the hollow hole 30. This ensures that the first sealing part 102 does not seal the hollow hole 30 during the electroplating process, but seals the hollow hole 30 after the electroplating is completed. This not only improves the problem of easy corrosion of the rivet nut, but also avoids the problem of leakage through the hollow hole 30 that communicates with the mounting hole 101a during the use of the rivet nut.

[0074] refer to Figure 5 According to some embodiments of this application, the sidewall of the nut body 101 surrounding the mounting hole 101a includes a deformation area, and the hollow hole 30 is disposed in the deformation area 42a. In the direction from the top of the nut body 101 to the bottom of the nut body 101, the distance between the deformation area 42a and the top of the nut body 101 is less than the distance between the deformation area 42a and the bottom of the nut body 101.

[0075] It is worth noting that, in order to show the positional relationship between the first sealing part 102 and the hollow hole 30, Figure 5 The first sealing part 102 shown has a certain degree of transparency. In the actual structure, the first sealing part 102 can be made of a material with a certain degree of transparency or an opaque material. The deformation zone 42a refers to the relatively weak area in the side wall of the nut body 101. When the rivet nut is riveted, the deformation zone 42a deforms due to its weakness, and together with the flange 41, clamps the object to be installed.

[0076] In some embodiments, the maximum wall thickness of the deformation zone 42a may be less than the minimum wall thickness of the remaining areas of the sidewall of the nut body 101 other than the deformation zone 42a, thereby making the deformation zone 42a a weak area.

[0077] In other embodiments, the wall thickness of the deformation zone 42a may also be the same as the wall thickness of the remaining areas of the side wall of the nut body other than the deformation zone 42a. Since the hollow hole 30 is provided in the deformation zone 42a, the deformation zone 42a is easy to deform.

[0078] The mounting hole 101a extends from the top of the nut body 101 towards the bottom of the nut body 101. The sidewall of the nut body 101 is located between the top and bottom of the nut body 101. The deformation zone 42a is disposed near the top of the nut body 101. Exemplarily, the deformation zone 42a can be disposed on the connecting portion 42, and the deformation zone 42a is connected to the flange 41. The portion of the connecting portion 42 other than the deformation zone 42a can be threaded.

[0079] In some embodiments, there may be multiple perforated holes 30, which are spaced apart circumferentially along the deformation region 42a. This allows the deformation region 42a to deform more uniformly along the circumferential direction, thereby improving the clamping strength of the object to be installed. In one example, the multiple perforated holes 30 may be evenly spaced along the circumferential direction of the deformation region 42a to further improve the uniformity of the circumferential deformation of the deformation region 42a, thereby further improving the clamping strength of the object to be installed.

[0080] In some embodiments, the plurality of perforated holes 30 may be arranged in a row along the circumference of the deformation region 42a. In other embodiments, the plurality of perforated holes 30 may also be arranged in multiple rows along the circumference of the deformation region 42a to enhance the deformation effect.

[0081] The position of the perforated hole 30 in the deformation zone 42a can be adjusted according to the thickness of the object to be installed. If the object to be installed is thick, the position of the perforated hole 30 in the deformation zone 42a can be set closer to the bottom of the nut body 101. If the object to be installed is thin, the position of the perforated hole 30 in the deformation zone 42a can be set closer to the top of the nut body 101.

[0082] The diameter of the perforated hole 30 can also be adjusted according to the thickness of the object to be installed in order to meet different clamping requirements.

[0083] In the above technical solution, on the one hand, the path of the electroplating solution to the bottom of the mounting hole 101a can be shortened, which improves the problem of the plating layer at the bottom of the mounting hole 101a being too thin. On the other hand, the deformation zone 42a is made thinner due to the setting of the hollow hole 30, which makes it easier to deform and expands the application range of the rivet nut.

[0084] Figure 6 This is the second cross-sectional view of a rivet nut according to some embodiments of this application. Figure 6 It can be Figure 5 A schematic diagram of a cross-sectional structure along the AA direction.

[0085] refer to Figure 6 According to some embodiments of this application, the wall thickness of the deformation zone 42a gradually increases along the direction from the top of the nut body 101 to the bottom of the nut body 101.

[0086] Understandably, as the wall thickness of the deformation zone 42a gradually increases, the stress distribution at different locations within the deformation zone 42a becomes uneven. The wall thickness is smaller closer to the top of the nut body 101 within the deformation zone 42a, making it more prone to stress concentration and resulting in more significant deformation at that location, thus making the deformation zone 42a more susceptible to deformation. The inclusion of perforated holes 30 in the deformation zone 42a further enhances its deformation performance, enabling it to adapt to various objects to be installed.

[0087] In the above technical solution, the wall thickness of the deformation zone 42a changes in a gradient manner, which further enhances the deformation effect of the deformation zone 42a.

[0088] refer to Figure 7 According to some embodiments of this application, the distance between the hollow hole 30 and the top of the nut body 101 is greater than the distance between the hollow hole 30 and the bottom of the nut body 101 in the direction from the top of the nut body 101 to the bottom of the nut body 101.

[0089] It is worth noting that, in order to show the positional relationship between the first sealing part 102 and the hollow hole 30, Figure 7 The first sealing part 102 shown has a certain degree of transparency. In the actual structure, the first sealing part 102 can be made of a material with a certain degree of transparency or an opaque material.

[0090] The deformation zone 42a is located near the top of the nut body 101, and the perforated hole 30 can be located in a region of the nut body 101 other than the deformation zone 42a, and near the bottom of the nut body 101. For example, the perforated hole 30 can be located on the side wall of the connecting portion 42 near the bottom of the nut body 101.

[0091] The top opening of the mounting hole 101a is located at the top of the nut body 101, and the bottom of the mounting hole 101a is located closer to the bottom of the nut body 101. For example, when the mounting hole 101a is a through-hole structure, the bottom opening of the mounting hole 101a is located at the bottom of the nut body 101. When the mounting hole 101a is a blind hole structure, the bottom of the nut body 101 seals the bottom of the mounting hole 101a. Therefore, by setting the perforated hole 30 close to the bottom of the nut body 101, the path of the electroplating solution flowing from the perforated hole 30 to the bottom of the mounting hole 101a is further shortened. Furthermore, the electroplating solution flowing in from the top opening 1 of the mounting hole 101a can flow out from the perforated hole 30, enhancing the fluidity of the electroplating solution and thus enhancing the fluidity of metal ions in the electroplating solution. This allows more metal ions to flow to the bottom of the mounting hole 101a, improving the electroplating effect at the bottom of the mounting hole 101a.

[0092] In some embodiments, the number of perforated holes 30 provided near the bottom of the nut body 101 may be only one.

[0093] In other embodiments, the number of perforated holes 30 provided near the bottom of the nut body 101 may also be multiple.

[0094] In the above technical solution, since the hollow hole 30 is set closer to the bottom of the nut body 101, the distance of the electroplating solution flowing from the hollow hole 30 into the mounting hole 101a to the bottom of the mounting hole 101a can be further shortened, thereby further improving the problem of the plating layer at the bottom of the mounting hole 101a being too thin.

[0095] It is understood that in other embodiments, there are multiple hollow holes 30, some of which may be located in the deformation area 42a near the top of the nut body 101, while the remaining hollow holes 30 are located closer to the bottom of the nut body 101 than the top of the nut body 101.

[0096] According to some embodiments of this application, there are multiple hollow holes 30, and the multiple hollow holes 30 are arranged at intervals along the circumferential direction of the mounting hole 101a.

[0097] In some embodiments, a plurality of perforated holes 30 may be arranged at circumferential intervals along the deformation region 42a.

[0098] In other embodiments, the plurality of perforated holes 30 may also be arranged circumferentially along the sidewall of the nut body, excluding the deformation zone 42a.

[0099] In some embodiments, the plurality of perforated holes 30 may be arranged in a row along the circumference of the sidewall of the nut body. In other embodiments, the plurality of perforated holes 30 may also be arranged in multiple rows along the circumference of the sidewall of the nut body to enhance the deformation effect.

[0100] The number of perforated holes 30 can be even, such as 2, 4, 6 or more, or odd, such as 3, 5, 7 or more. Multiple perforated holes 30 can be evenly spaced along the circumference of the side wall of the nut body.

[0101] In the above technical solution, the electroplating solution can enter the mounting hole 101a from multiple different perforations 30 along the circumference, which can increase the amount of electroplating solution flowing into the mounting hole 101a and further improve the electroplating effect. Furthermore, since the multiple perforations 30 are arranged along the circumference of the mounting hole, the electrolyte flowing into the mounting hole 101a is distributed more evenly in the circumference of the mounting hole 101a, which is beneficial to improving the uniformity of the plating thickness on the inner wall of the mounting hole 101a.

[0102] refer to Figures 2 to 7 According to some embodiments of this application, a first sealing portion 102 is disposed around the periphery of at least a portion of the sidewall of the nut body 101 to seal the perforated hole 30.

[0103] In some embodiments, if the perforated hole 30 is provided in the deformation area 42a, the first sealing part 102 can surround the circumference of the deformation area 42a to cover the entire outer wall of the deformation area 42a. In this way, if the coating of the deformation area 42a falls off after the deformation of the deformation area 42a, the first sealing part 102 can also prevent moisture from corroding the outer wall of the deformation area 42a, thereby preventing the outer wall of the deformation area 42a from rusting.

[0104] In some embodiments, the outer wall of the deformation zone 42a is provided with a plurality of grooves extending along the extension direction of the mounting hole 101a, and the plurality of grooves are arranged at intervals along the circumference of the deformation zone 42a. In this way, the first sealing part 102 not only covers the outer wall of the deformation zone 42a, but also fills the grooves. This can cut off the leakage path formed through the grooves, thereby reducing the risk of leakage in the object connected by the rivet nut.

[0105] The first sealing part 102 may be provided only around the outer wall of the deformation zone 42a, or it may be provided around the side wall of the nut body other than the deformation zone 42a.

[0106] In other embodiments, the perforated hole 30 is disposed on the side wall of the nut body outside the deformation zone 42a. In this case, the first sealing part 102 may be disposed only around the side wall of the nut body where the perforated hole 30 is located, or it may extend to the deformation zone 42a, so that the first sealing part 102 also surrounds the outer wall of the deformation zone 42a.

[0107] In some embodiments, the material of the first sealing portion 102 may include, but is not limited to, at least one of rubber, silicone, elastomeric sealant, thermoplastic plastic, or resin. For example, the material of the first sealing portion 102 may include ethylene propylene diene monomer (EPM) or polyvinyl chloride (PVC).

[0108] In some embodiments, after the rivet nut is electroplated, a liquid elastomeric sealant or silicone can be sprayed onto the side wall of the nut body where the hollow hole 30 is located. After heating, the liquid elastomeric sealant or silicone can be cured to form a first sealing part 102.

[0109] In the above technical solution, the first sealing part 102 can not only seal the hollow hole 30, but also protect the side wall of the nut body it covers, thereby improving the corrosion problem of the side wall of the nut body.

[0110] refer to Figure 5 According to some embodiments of this application, the nut body 101 may include: a flange 41 and a connecting portion 42, wherein the connecting portion 42 is connected to the flange 41, and a mounting hole 101a penetrates the flange 41 and at least a portion of the connecting portion 42. The end of the flange 41 away from the connecting portion 42 serves as the top of the nut body 101. In the case where the sidewall of the nut body 101 includes a deformation zone, the deformation zone is located at the connecting portion 42 and connected to the flange 41. The outer wall of the deformation zone is provided with a plurality of grooves, which are arranged at intervals along the circumference of the deformation zone 42a. A first sealing portion also fills at least a portion of the grooves. The end face of the flange 41 near the connecting portion 42 is provided with a plurality of ribs 41a, which are arranged at intervals along the circumference of the mounting hole. The rivet nut further includes: a second sealing portion 103, which is located at the end face of the flange 41 near the connecting portion 42 and fills at least a portion of the gap between adjacent ribs 41a.

[0111] It is worth noting that, in order to show the positional relationship between the second sealing part 103 and the rib 41a, Figure 5 The second sealing part 103 shown has a certain degree of transparency. In the actual structure, the second sealing part 103 can be made of a material with a certain degree of transparency or an opaque material.

[0112] The connection relationship, structure, and function of flanges and connecting parts can be found in the above descriptions, and will not be repeated below.

[0113] The extension direction of the groove can be the same as the extension direction of the mounting hole 101a. By setting multiple grooves, the deformation zone 42a becomes thinner, and thus more easily deformed.

[0114] Understandably, during rivet nut assembly, flange 41 protrudes from the top opening of the assembly hole of the object to be installed and abuts against the surface of the object. Connecting part 42 extends into the assembly hole of the object, meaning the end face of flange 41 near the connecting part abuts against the surface of the object. Because the surface of flange 41 near the connecting part has multiple ribs 41a, the gap between the end face of flange 41 near the connecting part 42 and the surface of the object to be installed is relatively large. During use, leakage can easily occur through the gaps between adjacent ribs 41a, flowing along the grooves into the interior of the object, making each groove a leakage path.

[0115] Based on the above considerations, in this embodiment of the application, the first sealing part 102 is provided to fill at least a portion of the groove, and the second sealing part 103 is provided to fill at least a portion of the gap between adjacent ribs 41a, which can block the above leakage path to a certain extent and reduce or even cut off the leakage path.

[0116] In some embodiments, the perforated hole 30 is disposed in the deformation area 42a, and the first sealing part 102 can at least surround the periphery of the deformation area 42a where the perforated hole 30 is located to seal the perforated hole 30, while filling part or all of the groove.

[0117] In other embodiments, if the perforation 30 is located in a region other than the deformation zone 42a in the sidewall of the nut body 101, the first sealing portion may extend to the deformation zone to fill at least a portion of the groove. Exemplarily, the first sealing portion may surround the periphery of a portion of the deformation zone to fill at least a portion of each groove. Alternatively, the first sealing portion may surround the periphery of the entire deformation zone to fill the entirety of each groove.

[0118] The second sealing part can fill part of the gap between two adjacent ribs 41a, or it can fill the entire gap between two adjacent ribs 41a.

[0119] In some embodiments, the material of the second sealing portion 103 may include, but is not limited to, at least one of rubber, silicone, elastomeric sealant, thermoplastic material, or resin. For example, the material of the second sealing portion 103 may be EPM or PVC. Thus, the second sealing portion 103 is elastic. During the riveting process of the rivet nut, a certain clamping force is formed between the end face of the flange 41 near the connecting portion 42 and the surface of the object to be installed, clamping the second sealing portion 103 between the flange and the surface of the object to be installed. The second sealing portion 103 undergoes a certain elastic deformation, which can better fill the gap between adjacent reinforcing bars 41a, thereby reducing the leakage path.

[0120] In some embodiments, the first sealing portion 102 and the second sealing portion 103 may be integrally formed.

[0121] In other embodiments, the first sealing part 102 and the second sealing part 103 may also be two independent structures.

[0122] In the above technical solution, after the rivet nut connects the object to be installed, the leakage path formed by the gap between the ribs 41a and the groove can be reduced or even cut off by the first sealing part 102 and the second sealing part 103, thereby enhancing the sealing performance of the rivet nut connecting the object to be installed.

[0123] refer to Figure 3 , Figure 4 as well as Figure 6 According to some embodiments of this application, the nut body 101 further includes a bottom wall connected to the side wall of the nut body 101, the bottom wall of the nut body 101 being disposed at the bottom of the nut body 101, and the bottom wall of the nut body 101 sealing the end of the mounting hole 101a away from the top opening.

[0124] In other words, the bottom of the nut body 101 is a closed structure so that the bottom of the mounting hole 101a is closed and the top is open, forming a blind hole structure.

[0125] In other words, the mounting hole 101a does not penetrate the nut body 101. For example, the bottom wall and side wall of the nut body 101 can be an integral structure to enhance the sealing of the mounting hole 101a.

[0126] In the above technical solution, the top of the mounting hole 101a is open and the bottom is sealed, forming a blind hole structure, which improves the airtightness of the mounting hole 101a and can further improve the problem of leakage through the mounting hole 101a during the use of rivet nuts.

[0127] refer to Figure 8 as well as Figure 9 According to some embodiments of this application, the mounting hole 101a also has a bottom opening 2, which is located at the bottom of the nut body 101. The rivet nut also includes a third sealing part 104, which is located at least at the bottom of the nut body 101 to seal the bottom opening 2.

[0128] In other words, the mounting hole 101a can penetrate the nut body 101.

[0129] The third sealing part 104 can extend into the bottom opening 2 to seal the bottom opening 2, thereby achieving a seal on the bottom opening 2, or it can cover the bottom of the nut body 101 to achieve a seal on the bottom opening 2.

[0130] In some embodiments, the material of the third sealing portion 104 may include, but is not limited to, at least one of rubber, silicone, elastomeric sealant, or resin. For example, the material of the third sealing portion 104 may be EPM or PVC.

[0131] It is understandable that when the nut body includes a bottom wall, and the bottom wall seals the end of the mounting hole 101a away from the top opening 1, the mounting hole only has a top opening, and the bottom of the mounting hole is a sealed structure. Thus, when a self-tapping screw is inserted into the mounting hole to form a thread on the inner wall of the mounting hole, because the mounting hole only has a top opening, the thread of the self-tapping screw cannot penetrate the bottom of the mounting hole, thereby preventing the formation of threads on the inner wall surface near the bottom of the mounting hole. To form a thread of sufficient length, the length of the nut body must be increased. However, in the embodiments of this application, as... Figure 8 as well as Figure 9 As shown, by setting the mounting hole 101a to be a structure that passes through both ends, when forming the thread on the inner wall of the mounting hole 101a, the self-tapping screw can pass through the top and bottom of the mounting hole, so that the thread on the inner wall of the mounting hole 101a can extend to the bottom opening 2 of the mounting hole 101a. In this way, a sufficiently long thread can be formed without lengthening the nut body 101, which is beneficial to reducing the overall size of the rivet nut.

[0132] In the above technical solution, during electroplating, the electroplating solution flows into the mounting hole 101a from the top opening 1 and the perforated hole 30, and flows out of the mounting hole 101a from the bottom opening 2. That is, the electroplating solution flows within the mounting hole 101a, causing the metal ions in the electroplating solution to be evenly distributed throughout the mounting hole 101a. Thus, a relatively uniform and consistent plating layer can be formed at both the top and bottom of the mounting hole 101a, improving the problem of easy plating peeling off at the bottom of the mounting hole 101a, which leads to corrosion of the rivet nut. Furthermore, the airtightness of the mounting hole 101a is achieved by assembling the third sealing part 104 with the bottom opening 2 of the mounting hole 101a. During electroplating, the third sealing part 104 does not seal the bottom opening 2; after electroplating is completed, the third sealing part 104 seals the bottom opening 2. This not only improves the problem of easy corrosion of the rivet nut but also prevents leakage through the mounting hole 101a during the use of the rivet nut.

[0133] refer to Figure 8 According to some embodiments of this application, the third sealing part 104 may include: a bottom sealing part 104a, which covers the bottom of the nut body 101; and a side sealing part 104b, which is connected to the bottom sealing part 104a and is disposed around the outer periphery of the bottom sealing part 104a, and the side sealing part 104b is disposed around the periphery of a portion of the side wall of the nut body.

[0134] The bottom sealing part 104a and the side sealing part 104b together form a sleeve structure with an opening at one end, which allows the third sealing part 104 to be fitted onto the bottom of the nut body 101 to seal the bottom opening 2, thus simplifying the assembly of the third sealing part 104 and the nut body 101.

[0135] In some embodiments, the material of the third sealing part 104 can be a thermoplastic material. After the third sealing part 104 is fitted onto the bottom of the nut body 101, the third sealing part 104 can be heated. The third sealing part 104 becomes sticky due to the high temperature generated by heating, thereby bonding with the side wall of the nut body and enhancing the sealing performance of the third sealing part 104 to the bottom opening 2.

[0136] In the above technical solution, the third sealing part 104 not only seals the bottom opening 2 of the mounting hole 101a, but also covers part of the side wall of the nut body, protecting the covered side wall and improving the corrosion problem of the nut body's side wall. Furthermore, the side sealing part 104b and the bottom sealing part 104a form a sleeve structure to enclose the bottom of the nut body 101 and seal the bottom opening 2, facilitating the installation and removal of the third sealing part 104.

[0137] According to some embodiments of this application, the first sealing part 102 and the third sealing part 104 are integrally formed.

[0138] The first sealing portion 102 is disposed on the side wall of the nut body 101. In some embodiments, the third sealing portion 104 is disposed on the bottom of the nut body 101. The first sealing portion 102 and the third sealing portion 104 can be closed to form a sleeve structure with one end open, such that the first sealing portion 102 surrounds the outer periphery of the side wall of the nut body 101, and the third sealing portion 104 covers the bottom of the nut body 101. Exemplarily, the first sealing portion 102 can be disposed around the entire outer wall of the connecting portion 42.

[0139] In other embodiments, the third sealing portion 104 includes a bottom sealing portion 104a and a side sealing portion 104b. The side sealing portion 104b surrounds and covers the outer periphery of a portion of the side wall of the nut body. The first sealing portion 102 may surround the outer periphery of the remaining portion of the side wall of the nut body, and the first sealing portion 102 is connected to the side sealing portion 104b and integrally formed.

[0140] In the above technical solution, after electroplating is completed, the first sealing part 102 and the third sealing part 104 of the sealing hollow hole 30 and the bottom opening 2 can be formed in the same assembly step, simplifying the preparation of the rivet nut.

[0141] According to some embodiments of this application, the material of the first sealing part 102 is a thermoplastic material.

[0142] For example, the first sealing part 102 can be a sleeve structure with openings at both ends. After the first sealing part 102 is sleeved on the side wall of the nut body 101 where the hollow hole 30 is located, it covers the hollow hole 30. Then, the first sealing part 102 can be heated. Due to the high temperature generated by heating, the first sealing part 102 becomes sticky, thereby bonding and connecting with the side wall of the nut body, enhancing the sealing performance of the first sealing part 102 on the hollow hole 30.

[0143] In some embodiments, the third sealing portion 104 seals the bottom opening 2 of the mounting hole 101a, and the material of the third sealing portion 104 may also be a thermoplastic material. In one example, the first sealing portion 102 and the third sealing portion 104 are integrally formed, and the materials of the first sealing portion 102 and the third sealing portion 104 may be the same thermoplastic material.

[0144] In some embodiments, the thermoplastic material may be made of, but is not limited to, a thermoplastic elastomer or a thermoplastic plastic. For example, it may be EPM or PVC.

[0145] In the above technical solution, the first sealing part 102 is thermoplastic. After the first sealing part 102 is heated, it becomes sticky and adheres to the side wall of the nut body, thereby enhancing the sealing performance of the first sealing part 102 on the hollow hole 30.

[0146] This application provides a housing that includes the rivet nut described in the above embodiments.

[0147] The structure of the enclosure can be referred to the description in the above embodiments, and will not be repeated here.

[0148] In some embodiments, rivet nuts can be used in conjunction with bolts to connect the box body and the cover in the enclosure. By improving the rust resistance of the rivet nuts, the stability of the connection between the box body and the cover can be increased, thereby increasing the overall structural stability of the enclosure.

[0149] According to some embodiments of this application, the enclosure further includes: an enclosure body; a cover, which covers the enclosure body to form a receiving space for accommodating individual battery cells together with the enclosure body; and fasteners, which pass through mounting holes to be threadedly connected to rivet nuts, and the cover is connected to the enclosure body by rivet nuts and fasteners.

[0150] For example, the box body can be the first object to be installed in the above embodiments, and the cover can be the second object to be installed in the above embodiments. The method of assembling the first object to be installed and the second object to be installed with rivet nuts and fasteners can be referred to the relevant description in the above embodiments, and will not be repeated here.

[0151] In some embodiments, fasteners may include, but are not limited to, bolts, screws, and other structures with threads on their outer walls.

[0152] Because rivet nuts are not prone to corrosion, the connection between the cover and the box body, which are connected by rivet nuts and bolts in the above embodiments, is more stable. At the same time, the first sealing part seals the hollow hole of the nut body to improve the airtightness of the mounting hole, which can improve the problem of liquid leakage through the mounting hole, so that the box body can provide better protection for the battery cells and maintain the stability of the battery cells.

[0153] This application provides a battery comprising a battery cell; and a housing as described in the above embodiments, the housing being used to house the battery cell.

[0154] The structure of the battery, as well as the structure of the individual battery cells and the casing, can be found in the descriptions in the above embodiments, and will not be repeated here.

[0155] This application provides a battery that includes the rivet nut described in the above embodiments.

[0156] Riveting assemblies can be used for assemblies between any two parts of a battery that require a sealed connection, including but not limited to the assembly of the casing and the assembly connection between internal structures of the casing.

[0157] This application provides an electrical device that includes the battery described in the above embodiments, the battery being used to provide electrical energy.

[0158] The electrical devices can be referred to the relevant descriptions in the above embodiments, and will not be repeated here.

[0159] This application provides a rivet nut, see reference. Figure 2 as well as Figure 3 The rivet nut includes: a nut body 101, the nut body 101 having a mounting hole 101a, the mounting hole 101a including a top opening 1 at the top of the nut body 101, and at least one hollow hole 30 on the side wall of the nut body 101 surrounding the mounting hole 101a, the hollow hole 30 communicating with the mounting hole 101a; the rivet nut also includes: a first sealing part 102, disposed on the side wall of the nut body 101, the first sealing part 102 sealing the hollow hole 30 along the periphery surrounding the side wall of the nut body.

[0160] For example, such as Figure 3 , Figure 4 as well as Figure 6 As shown, the bottom of the nut body can seal the end of the mounting hole away from the top opening 1.

[0161] For example, such as Figure 8 as well as Figure 9As shown, the mounting hole 101a may also have a bottom opening 2, which is located at the bottom of the nut body 101. The rivet nut further includes a third sealing part 104, which is located at least at the bottom of the nut body 101 to seal the bottom opening 2. The first sealing part 102 and the third sealing part 104 are integrally formed, wherein the first sealing part 102 is disposed around the outer periphery of the side wall of the entire nut body, and the third sealing part 104 covers the bottom of the nut body 101.

[0162] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A rivet nut, characterized in that, include: The nut body has a mounting hole, the mounting hole including a top opening at the top of the nut body, and at least one hollow hole is provided on the side wall of the nut body surrounding the mounting hole, the hollow hole communicating with the mounting hole; A first sealing part is disposed on the side wall of the nut body, and the first sealing part at least seals the hollow hole.

2. The rivet nut according to claim 1, characterized in that, The sidewall surrounding the mounting hole of the nut body includes a deformation zone, and the hollow hole is disposed in the deformation zone. In the direction from the top of the nut body to the bottom of the nut body, the distance between the deformation zone and the top of the nut body is less than the distance between the deformation zone and the bottom of the nut body.

3. The rivet nut according to claim 2, characterized in that, Along the direction from the top of the nut body to the bottom of the nut body, the wall thickness of the deformation zone gradually increases.

4. The rivet nut according to claim 1, characterized in that, Along the direction from the top of the nut body to the bottom of the nut body, the distance between the hollow hole and the top of the nut body is greater than the distance between the hollow hole and the bottom of the nut body.

5. The rivet nut according to any one of claims 1-4, characterized in that, The number of perforated holes is multiple, and the multiple perforated holes are arranged at intervals along the circumference of the mounting hole.

6. The rivet nut according to any one of claims 1-4, characterized in that, The first sealing portion is disposed around the periphery of at least a portion of the sidewall of the nut body to seal the hollow hole.

7. The rivet nut according to any one of claims 1-4, characterized in that, The nut body includes: Flange; A connecting portion is provided, which connects to the flange. The mounting hole penetrates the flange and at least a portion of the connecting portion. The end of the flange away from the connecting portion serves as the top of the nut body. When the side wall of the nut body includes a deformation zone, the deformation zone is located at the connection part and connected to the flange. The outer wall of the deformation zone is provided with a plurality of grooves, which are arranged at intervals along the circumference of the deformation zone. The first sealing part also fills at least a portion of the grooves. The flange has multiple ribs on its end face near the connection part, and the multiple ribs are arranged at intervals along the circumference of the mounting hole. The rivet nut also includes: The second sealing part is disposed on the end face of the flange near the connection part and fills at least part of the gap between adjacent ribs.

8. The rivet nut according to any one of claims 1-4, characterized in that, The nut body also includes: A bottom wall connected to the side wall of the nut body, the bottom wall of the nut body being located at the bottom of the nut body, the bottom wall of the nut body sealing the end of the mounting hole away from the top opening.

9. The rivet nut according to any one of claims 1-4, characterized in that, The mounting hole also has a bottom opening, which is located at the bottom of the nut body. The rivet nut further includes: A third sealing part is provided at least at the bottom of the nut body to seal the bottom opening.

10. The rivet nut according to claim 9, characterized in that, The third sealing part includes: Bottom sealing portion, the bottom sealing portion covering the bottom of the nut body; A side sealing portion is connected to the bottom sealing portion and is disposed around the outer periphery of the bottom sealing portion. The side sealing portion is disposed around the periphery of a portion of the side wall of the nut body.

11. The rivet nut according to claim 9, characterized in that, The first sealing part and the third sealing part are integrally formed.

12. The rivet nut according to any one of claims 1-4, characterized in that, The material of the first sealing part is a thermoplastic material.

13. A box, characterized in that, Includes the rivet nut as described in any one of claims 1-12.

14. The housing according to claim 13, characterized in that, The enclosure also includes: box body; A cover that covers the box body to form a storage space for accommodating individual battery cells together with the box body; Fasteners are inserted into the mounting holes to be threadedly connected to the rivet nut, and the cover is connected to the box body via the rivet nut and the fasteners.

15. A battery, characterized in that, include: Battery cell; as well as The housing as described in claim 13 or 14 is used to house the battery cell.

16. A battery, characterized in that, Includes the rivet nut as described in any one of claims 1-12.

17. An electrical device, characterized in that, Includes the battery as described in claim 15 or 16, the battery being used to provide electrical energy.

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