Fastener and connecting structure of fastener

Abstract

The utility model discloses a fastener and a connecting structure of the fastener, and belongs to the technical field of flanging riveting. The fastener comprises a head part, a screw rod and a connecting column, the connecting column is connected with the head part and the screw rod, a riveting convex part is arranged on the end face of the end, facing the screw rod, of the connecting column, the riveting convex part and the peripheral face of the screw rod are spaced in the radial direction, the connecting column is used for being arranged in a mounting hole of a connecting part in a penetrating mode, and the connecting column is used for being connected with the screw rod. And the riveting convex part is used for being riveted with the edge of the side, back on to the head part, of the connecting part in a turning mode so that the head part and the screw rod can be located on the two sides of the connecting part correspondingly. According to the technical scheme, the riveting protruding part can be used for being turned to form the turned riveting edge, so that a special tool used for cutting the fastener in the related technology is omitted, the size of the turned riveting edge is easy to control, the structure of a matched connecting part is simplified, the production process is simplified, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of flip rivets, in particular to a fastener and a connection structure of the fastener. Background Art

[0002] In the related art, riveting studs require opening specially shaped mounting holes in the connecting parts and riveting them through specific tooling, resulting in high costs. Utility Model Content

[0003] The embodiment of the utility model provides a connection structure between fasteners, which does not require special tooling and reduces production costs.

[0004] In the first aspect, an embodiment of the utility model provides a fastener, comprising: a head, a screw and a connecting column, wherein the connecting column connects the head and the screw, and an end face of the connecting column facing the screw is provided with a riveted protrusion, and the riveted protrusion is radially spaced from the outer peripheral surface of the screw, wherein the connecting column is used to pass through the mounting hole of the connecting component so that the head and the screw are respectively located on both sides of the connecting component, and the riveted protrusion is used to rivet with the edge of the connecting component on one side facing away from the head.

[0005] In the above technical solution, a rivet protrusion is provided on the side of the connecting column facing the screw, and the rivet protrusion is spaced apart from the screw, so that the rivet protrusion can be used to roll up to form a riveted edge, thereby eliminating the special tooling for cutting fasteners in the related art, and the size of the riveted edge is easy to control, which is conducive to simplifying the structure of the matching connecting parts, thereby simplifying the production process and reducing costs.

[0006] In some embodiments, the height of the riveting protrusion protruding from the connecting column is 0.5 mm to 1.5 mm.

[0007] In the above technical solution, the rivet edge formed by the riveted protrusion is a micro-flange. While ensuring the reliability of riveting, the size of the rivet edge can be reduced, so that the rivet edge is not easy to interfere with the surrounding structure, which is more conducive to reducing the structural requirements for the mounting hole on the connecting component, and there is no need to set up a space for accommodating the rivet edge.

[0008] In some embodiments, the riveting protrusion extends along the circumference of the connecting column and forms an annular protrusion.

[0009] In the above technical solution, the riveted edge formed after riveting continuously extends along the circumference of the connecting column to form an annular flange. The annular flange has higher structural strength and better stability, which helps to improve the connection reliability between the fastener and the connecting component. It also more evenly distributes force around the fastener, making it less likely to deflect during the riveting process.

[0010] In some embodiments, an outer peripheral surface of the riveting protrusion is coplanar with an outer peripheral surface of the connecting column.

[0011] In the above technical solution, when the height of the riveted protrusion is constant, the radial dimension of the formed riveted edge is larger; when the radial dimension of the riveted edge is constant, the height of the riveted protrusion can be smaller, thereby improving the utilization rate of the riveted protrusion.

[0012] In some embodiments, a riveting groove is provided on a side of the head facing the connecting column.

[0013] In the above technical solution, during the riveting process, the connecting component can be deformed under the riveting pressure, and the deformed part can be embedded in the riveting groove to increase the interference between the connecting component and the fastener, thereby improving the riveting strength and reliability.

[0014] In some embodiments, the rivet groove extends along the circumference of the connecting column to form an annular groove.

[0015] In the above technical solution, the deformed portion of the connecting component can be embedded in the entire annular groove, forming an annular interference structure, which improves riveting strength and makes the force applied to the fastener more uniform in the circumferential direction, thereby improving the stability of the riveting. In addition, the edge of the mounting hole can be deformed to form the deformed portion, which makes deformation easier and helps reduce the difficulty of riveting.

[0016] In some embodiments, an anti-rotation protrusion is provided in the riveting groove.

[0017] In the above technical solution, after the connecting component is riveted and deformed, the deformed part can also be embedded in the riveting groove and contact and cooperate with the surface of the anti-rotation protrusion. At this time, the anti-rotation protrusion can prevent the connecting component and the fastener from rotating relative to each other, thereby improving the reliability of riveting and the stability of the fastener during subsequent use.

[0018] In some embodiments, there are multiple anti-rotation protrusions, and the multiple anti-rotation protrusions are evenly spaced along the circumference of the connecting column.

[0019] In the above technical solution, a certain gap can be formed between two adjacent anti-rotation protrusions to accommodate the deformed part of the connecting component, so that the deformed part can interfere with multiple anti-rotation protrusions in the circumferential direction of the connecting column to prevent rotation, thereby improving the anti-rotation effect.

[0020] In some embodiments, the end surface of the anti-rotation protrusion facing away from the bottom wall of the rivet groove does not extend beyond the notch of the rivet groove.

[0021] In the above technical solution, the anti-rotation protrusion is completely located in the riveting groove, and the protruding height of the anti-rotation protrusion is more appropriate, so that the anti-rotation protrusion is not easy to interfere with the embedding of the connecting component in the riveting groove, ensuring the connection strength while reducing the riveting difficulty.

[0022] In some embodiments, an anti-rotation protrusion is provided on a side of the head facing the connecting post.

[0023] In the above technical solution, during the riveting process of the connecting component and the fastener, the anti-rotation protrusion can be embedded in the surface of the connecting component and the end face of the connecting component and the head can be abutted, so that the deformed part of the connecting component interferes with the anti-rotation protrusion here to play an anti-rotation role.

[0024] In some embodiments, the screw has an external thread, or the screw has a connecting hole, and the hole wall of the connecting hole is provided with an internal thread.

[0025] In the above technical solution, the external thread can be used to connect with components such as nuts with internal threads, allowing the nut to compress the connecting component, further improving the connection reliability between the connecting component and the fastener. The internal thread can be used to connect with components such as bolts with external threads. The bolt is located in the connection hole of the screw, so that the rivet edge formed by the riveted protrusion does not interfere with the bolt. The rivet edge size design is more flexible and variable, thereby reducing the difficulty of riveting.

[0026] In a second aspect, an embodiment of the present invention further provides a fastener connection structure, comprising a connecting component and the above-mentioned fastener, wherein the connecting component is provided with the mounting hole, and the fastener is passed through the mounting hole and riveted to the connecting component.

[0027] In some embodiments, the riveted protrusion is riveted to an edge of the connecting component on a side facing away from the head to form a riveted edge, and a dimension of the riveted edge along the radial direction of the connecting column is 0.5 mm to 1.5 mm.

[0028] In the above technical solution, the rivet edge is a micro-flange. While ensuring the reliability of riveting, the size of the rivet edge can be reduced, so that the rivet edge is not easy to interfere with the surrounding structure, which is more conducive to reducing the structural requirements for the mounting holes on the connecting parts, and there is no need to set up space for accommodating the rivet edge. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of a vehicle provided for some embodiments of the present invention;

[0030] Figure 2 A schematic structural diagram of a battery device provided in an embodiment of the present utility model;

[0031] Figure 3 A schematic diagram of the structure of a fastener provided by an embodiment of the present utility model before riveting;

[0032] Figure 4 This is an axial view of the fastener provided by an embodiment of the present invention before riveting;

[0033] Figure 5 A partial cross-sectional view of a fastener provided by an embodiment of the present utility model before riveting;

[0034] Figure 6 A schematic diagram of the matching structure of the fastener and the connecting component provided in an embodiment of the utility model.

[0035] Reference numerals:

[0036] Vehicle 2000; Frame 2100;

[0037] Battery device 1000; box 300;

[0038] Fastener 100; connecting structure 200; connecting component 210; mounting hole 211;

[0039] Head 10; riveting groove 11; anti-rotation protrusion 12;

[0040] Screw 20; External thread 21;

[0041] Connecting column 30; riveted protrusion 31; riveted edge 32. DETAILED DESCRIPTION

[0042] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] Unless otherwise defined, all technical and scientific terms used in this utility model have the same meanings as those commonly understood by those skilled in the art to which this utility model belongs; the terms used in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model; the terms "including" and "having" and any variations thereof in the specification and claims of this utility model and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this utility model or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary-secondary relationship.

[0044] Reference to an "embodiment" in this disclosure means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the disclosure. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments.

[0045] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "attached" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0046] In this application, the term "and / or" simply describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, and B exists alone. Furthermore, the character " / " in this application generally indicates that the related objects are in an "or" relationship.

[0047] In the embodiments of the present invention, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components in different embodiments are omitted. It should be understood that the thickness, length, width, and other dimensions of the various components in the embodiments of the present invention, as well as the overall thickness, length, width, and other dimensions of the integrated device shown in the drawings are for illustrative purposes only and do not constitute any limitation on the present invention.

[0048] The term "plurality" used in this invention refers to more than two (including two).

[0049] Riveting is a method of connecting multiple parts by using axial force to thicken the shank of the connecting component's mounting hole and form a nail head. Parts that are riveted can include self-clinching studs, rivet studs, rivet nuts, etc.

[0050] Among them, flip rivet studs can be riveted to connecting components such as plates, and the plates are fastened by rolling the flip rivet studs. Specifically, during the flip riveting process, special tooling is required to cut the column of the flip rivet stud and roll and extrude the cut portion to form the flip edge. Moreover, the size of the flip edge formed by flip riveting is difficult to control, so a specially shaped mounting hole is required in the plate. In other words, the edge of the mounting hole is deformed to form a space on one side of the mounting hole to accommodate the flip edge.

[0051] Therefore, the rivet studs in the related art have high requirements for connecting parts during application and need to be riveted through special tooling, resulting in high costs.

[0052] In view of this, embodiments of the present application provide a fastener comprising a head, a screw, and a connecting post. The connecting post connects the head and the screw, and a riveting protrusion is provided on one end of the connecting post facing the screw. The riveting protrusion is radially spaced from the outer circumference of the screw. The connecting post is configured to be inserted through a mounting hole in a connecting component, such that the head and the screw are located on opposite sides of the connecting component; the riveting protrusion is configured to be riveted to the edge of the connecting component facing away from the head.

[0053] In the fastener of the above-mentioned structure, a rivet protrusion is provided on the side of the connecting column toward the screw, and the rivet protrusion is spaced apart from the screw, so that the rivet protrusion can be used to be rolled up to form a riveted edge, thereby eliminating the special tooling for cutting the fastener in the related art, and the size of the riveted edge is easy to control, which is conducive to simplifying the structure of the matching connecting parts, thereby simplifying the production process and reducing costs.

[0054] The technical solutions described in the embodiments of the present application are applicable to connection structures that use fasteners for connection, such as battery devices.

[0055] The battery apparatus mentioned in the embodiments of the present application may include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly may include multiple battery cells, which are connected in series, parallel, or hybrid via a busbar.

[0056] In some embodiments, a battery cell assembly is typically formed by arranging multiple battery cells. For example, a battery cell assembly can be a battery module, which is a single module formed by arranging and securing multiple battery cells. For example, a battery module can be formed by bundling multiple battery cells using cable ties.

[0057] In some embodiments, the battery device may be a battery pack, which includes a case and one or more battery cell assemblies, wherein the battery cell assemblies are housed in the case.

[0058] In some embodiments, the housing of the battery device can be mounted on an electrical device via fasteners. The electrical device can be a vehicle, a mobile phone, a portable device, a laptop computer, a ship, a spacecraft, an electric toy, an electric tool, and the like. The vehicle can be a fuel vehicle, a gas vehicle, or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle. The spacecraft includes airplanes, rockets, space shuttles, and spacecraft. The electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys. The electric tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers. The embodiments of the present application do not impose any special restrictions on the above-mentioned electrical devices.

[0059] In other embodiments, the box of the battery device may include a first box and a second box, the first box and the second box cover each other to define a storage space for accommodating the battery cell assembly, and the first box and the second box are connected by fasteners.

[0060] For the convenience of description, the following embodiments are described by taking an example where a fastener is used in a battery device and the battery device is installed in a vehicle.

[0061] Please refer to Figure 1 , Figure 1 A schematic diagram of a vehicle 2000 provided in some embodiments of the present invention is shown. Figure 2 This is a schematic diagram of the structure of a battery device 1000 provided in an embodiment of the present invention. A vehicle 2000 is provided with the battery device 1000. The battery device 1000 can be installed at the bottom, front, or rear of the vehicle 2000, for example, connected to the frame 2100 of the vehicle 2000. The battery device 1000 can be used to power the vehicle 2000. For example, the battery device 1000 can serve as the operating power source of the vehicle 2000.

[0062] In some embodiments of the present application, the battery device 1000 can not only serve as the operating power source of the vehicle 2000, but also serve as the driving power source of the vehicle 2000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 2000.

[0063] Please refer to Figure 2 , Figure 2 This is a structural diagram of a battery device 1000 provided in an embodiment of the present invention. The battery device 1000 includes a battery cell assembly and a box 300 for accommodating the battery cell assembly.

[0064] The battery cell assembly includes a plurality of battery cells. The plurality of battery cells can be arranged in a stacked or array arrangement. The housing 300 can have various structural forms. In some embodiments, the housing 300 can include a first housing and a second housing, the first housing and the second housing overlapping each other, and the first housing and the second housing together define a storage space for accommodating the battery cell assembly. The housing 300 is provided with a mounting hole 211. The fastener 100 is inserted into the mounting hole 211 and riveted to the housing 300 to be mounted on the frame 2100 of the vehicle 2000.

[0065] Hereinafter, a fastener 100 according to an embodiment of the present invention will be described with reference to the accompanying drawings.

[0066] Please refer to Figure 3-Figure 6 As shown, Figure 3 A schematic structural diagram of a fastener 100 provided in an embodiment of the present invention before riveting; Figure 4 This is an axial view of the fastener 100 provided in an embodiment of the present invention before riveting; Figure 5 A partial cross-sectional view of a fastener 100 provided in an embodiment of the present invention before riveting; Figure 6 Schematic diagram of the matching structure of the fastener 100 and the connecting component 210 provided in an embodiment of the present invention. The fastener 100 includes: a head 10, a screw 20 and a connecting column 30.

[0067] The connecting post 30 connects the head 10 and the screw 20. A riveting protrusion 31 is provided on the end of the connecting post 30 facing the screw 20. The riveting protrusion 31 is radially spaced from the outer circumference of the screw 20. The connecting post 30 is configured to pass through the mounting hole 211 of the connecting component 210, so that the head 10 and the screw 20 are positioned on opposite sides of the connecting component 210. The riveting protrusion 31 is configured to be riveted to the edge of the connecting component 210 facing away from the head 10.

[0068] The head 10 is the portion located on one side of the connecting member 210 after riveting and engaging with a surface of the connecting member 210 to achieve positional restraint. For example, in a direction perpendicular to the arrangement of the head 10, the connecting post 30, and the screw 20 (i.e., perpendicular to the axis of the screw 20), the maximum dimension of the head 10 can be greater than the maximum dimension of the connecting post 30. The outer contour of the head 10 can be cylindrical or non-cylindrical, and both are within the scope of protection of the present invention.

[0069] In the description of this application, the axial direction refers to a direction parallel to the axis of the screw 20 , and the radial direction refers to a direction perpendicular to the axis of the screw 20 .

[0070] The screw rod 20 refers to a column with threads, which can be arranged on the outer circumferential surface of the column to form an external thread 21, or the column can have a connecting hole with threads arranged on the inner circumferential surface of the connecting hole to form an internal thread.

[0071] The connecting member 210 can be, but is not limited to, a connecting plate. The connecting column 30 can be, but is not limited to, a columnar structure such as a cylinder, a prism, etc. The riveting protrusion 31 refers to a boss, a bump, etc. protruding from the surface of the connecting column 30, which can be arc-shaped, strip-shaped, circular ring-shaped, circular-shaped, etc. The connecting column 30 has a radial dimension at the position of the riveting protrusion 31 greater than the maximum radial dimension of the screw rod 20, so that the riveting protrusion 31 is spaced apart from the outer circumferential surface of the screw rod 20 by a certain gap in the radial direction.

[0072] Therefore, in the riveting process, the screw rod 20 can be inserted through the mounting hole 211 of the connecting member 210, and the connecting column 30 is arranged in the mounting hole 211, and the head 10 abuts against one side surface of the connecting member 210; then a riveting pressure is applied, and the riveting protrusion 31 can be deformed under the riveting pressure, and the portion of the riveting protrusion 31 deformed by rolling in the radial direction away from the screw rod 20 can abut against the side of the connecting member 210 facing away from the head 10, thereby realizing riveting of the fastener 100 and the connecting member 210.

[0073] Since the riveting protrusion 31 protrudes from the connecting column 30 and is spaced apart from the screw rod 20, in the riveting process, the connecting column 30 or the screw rod 20 does not need to be cut by a special tool for roll riveting, and only needs to apply pressure to the riveting protrusion 31, which simplifies the riveting tool, reduces the cost, and improves the riveting efficiency.

[0074] In addition, the radial dimension of the roll riveting edge 32 formed is easier to control, and only needs to control the height of the riveting protrusion 31 protruding from the connecting column 30 to control the size of the roll riveting edge 32 formed by rolling of the riveting protrusion 31. Therefore, it is more conducive to meet the needs of roll riveting edges 32 of different strengths and different structures, for example, a roll riveting edge 32 with a smaller radial dimension can be formed to form a micro-roll screw rod 20. The size of the roll riveting edge 32 is easy to control and is not easy to interfere with the connecting member 210 and other components around the connecting member 210, so the structure requirement of the mounting hole 211 on the connecting member 210 is lower, and a space for accommodating the roll riveting edge 32 can not be provided, thereby simplifying the process and reducing the cost.

[0075] According to the fastener 100 of the embodiment of the present invention, a rivet protrusion 31 is provided on the side of the connecting column 30 facing the screw 20, and the rivet protrusion 31 is spaced apart from the screw 20, so that the rivet protrusion 31 can be used to roll up to form a riveted edge 32, thereby eliminating the special tooling for cutting the fastener 100 in the related art, and the size of the riveted edge 32 is easy to control, which is conducive to simplifying the structure of the matching connecting component 210, thereby simplifying the production process and reducing costs.

[0076] According to some embodiments of the present invention, Figure 4 As shown, the height of the riveting protrusion 31 protruding from the connecting column 30 is 0.5 mm to 1.5 mm, that is, 0.5 mm≤H≤1.5 mm.

[0077] Within the above value range, the flange 32 formed by the riveting protrusion 31 is a micro-flange. While ensuring riveting reliability, the size of the flange 32 can be reduced, making it less likely to interfere with surrounding structures. This further helps to reduce the structural requirements for the mounting hole 211 on the connecting component 210, and eliminates the need to provide space for accommodating the flange 32. For example, in some specific embodiments, the height of the riveting protrusion 31 protruding from the connecting column 30 is 0.5 mm, 0.8 mm, 1 mm, 1.2 mm, and 1.5 mm.

[0078] According to some embodiments of the present invention, Figure 3 and Figure 4 As shown, the riveting protrusion 31 extends along the circumference of the connecting column 30 and is an annular protrusion.

[0079] In other words, the riveted protrusion 31 extends continuously along the circumference of the connecting post 30. As a result, the resulting riveted edge 32 extends continuously along the circumference of the connecting post 30, forming an annular flange. This annular flange provides greater structural strength and stability, improving the connection reliability between the fastener 100 and the connecting component 210. It also applies more uniform force to the fastener 100 around the circumference, making it less likely to deflect during the riveting process.

[0080] According to some embodiments of the present invention, Figure 3 and Figure 4 As shown, the outer peripheral surface of the rivet protrusion 31 is coplanar with the outer peripheral surface of the connecting column 30 .

[0081] The outer peripheral surface of the riveting protrusion 31 refers to the surface of the riveting protrusion 31 facing away from the center line of the connecting column 30 in the radial direction.

[0082] During the riveting process, after the riveting protrusion 31 is rolled outward in the radial direction, the part that exceeds the outer peripheral surface of the connecting column 30 can cooperate with the connecting component 210 to realize the riveting connection. The outer peripheral surface of the riveting protrusion 31 is coplanar with the outer peripheral surface of the connecting column 30, so that when the height of the riveting protrusion 31 is constant, the radial dimension of the riveted edge 32 formed is larger; when the radial dimension of the riveted edge 32 is constant, the height of the riveted protrusion 31 can be smaller, thereby improving the utilization rate of the riveted protrusion 31.

[0083] According to some embodiments of the present invention, Figure 3-Figure 6 As shown, a riveting groove 11 is provided on a side of the head 10 facing the connecting post 30 .

[0084] During the riveting process, the connecting component 210 can be deformed under the riveting pressure, and the deformed portion can be embedded in the riveting groove 11 to increase the interference between the connecting component 210 and the fastener 100, thereby improving the riveting strength and reliability.

[0085] The rivet groove 11 can be radially spaced a certain distance from the connecting column 30, and a portion of the groove wall of the rivet groove 11 can also be coplanar with the outer circumferential surface of the connecting column 30. The rivet groove 11 can extend continuously or discontinuously along the circumference of the connecting column 30. The cross-sectional shape of the rivet groove 11 parallel to the axial direction can be, but is not limited to, V-shaped, U-shaped, square, or other shapes, as long as it can provide space for the deformed portion.

[0086] In some embodiments, as Figure 3-Figure 5 As shown, the rivet groove 11 extends along the circumference of the connecting column 30 to form an annular groove.

[0087] The deformed portion of the connecting member 210 can be embedded in the entire annular groove, forming an annular interference structure, which improves riveting strength and makes the force applied to the fastener 100 more uniform in the circumferential direction, thereby improving the stability of the riveting. In addition, the edge of the mounting hole 211 can be deformed to form a deformed portion, which makes deformation easier and helps reduce the difficulty of riveting.

[0088] In some embodiments, as Figure 3 and Figure 4 As shown, an anti-rotation protrusion 12 is provided in the riveting groove 11 .

[0089] The anti-rotation protrusion 12 is connected to the groove wall surface of the riveted groove 11, for example, to at least one of the groove bottom wall and the groove peripheral wall of the riveted groove 11. The anti-rotation protrusion 12 protrudes from the groove wall surface to which it is connected, forming a non-circular space within the riveted groove 11. After the connecting member 210 is deformed by riveting, the deformed portion can still be embedded in the riveted groove 11 and contact and mate with the surface of the anti-rotation protrusion 12. In this case, the anti-rotation protrusion 12 can prevent the connecting member 210 and the fastener 100 from rotating relative to each other, thereby improving the reliability of the riveted connection and the stability of the fastener 100 during subsequent use.

[0090] In some specific embodiments, continue to refer to Figure 3 and Figure 4 As shown, there are multiple anti-rotation protrusions 12 , and the multiple anti-rotation protrusions 12 are evenly spaced along the circumference of the connecting column 30 .

[0091] A certain gap can be formed between two adjacent anti-rotation protrusions 12 to accommodate the deformed portion of the connecting component 210, allowing the deformed portion to interfere with the multiple anti-rotation protrusions 12 in the circumferential direction of the connecting column 30 to prevent rotation, thereby improving the anti-rotation effect. Furthermore, the multiple anti-rotation protrusions 12 are evenly spaced, so that the gap size between any two adjacent anti-rotation protrusions 12 is equal. The deformed portion of the connecting component 210 deforms more evenly toward the gap, which helps to improve the uniformity of the force applied to the connecting component 210 and the fastener 100 during the riveting process. In turn, the axial direction of the fastener 100 is less likely to deflect relative to the thickness direction of the connecting component 210, thereby improving the reliability of the connection.

[0092] In some embodiments, the end surface of the anti-rotation protrusion 12 facing away from the bottom wall of the rivet groove 11 does not extend beyond the notch of the rivet groove 11 .

[0093] In other words, the anti-rotation protrusion 12 is completely located in the riveting groove 11, and the protruding height of the anti-rotation protrusion 12 is more appropriate, so that the anti-rotation protrusion 12 is not easy to interfere with the embedding of the connecting component 210 in the riveting groove 11, ensuring the connection strength while reducing the riveting difficulty.

[0094] In some embodiments, as Figure 3 and Figure 4 As shown, the anti-rotation protrusions 12 are spaced apart from the outer circumference of the connecting column 30. After the edge of the mounting hole 211 is deformed and inserted into the riveting groove 11, the deformed portion can form a continuous annular structure, that is, a toothed portion including an annular portion located between adjacent anti-rotation protrusions 12, and the portions are connected as a whole, thereby improving the strength of the riveting.

[0095] According to other embodiments of the present invention, an anti-rotation protrusion 12 is provided on a side of the head 10 facing the connecting post 30 .

[0096] The anti-rotation protrusion 12 protrudes from the side surface of the head 10 facing the connecting column 30, i.e. the anti-rotation protrusion 12 is located radially outside the connecting column 30. During the riveting of the connecting component 210 and the fastener 100, the anti-rotation protrusion 12 can be embedded in the surface of the connecting component 210 and the end surface of the head 10 abuts against the connecting component 210, so that the deformed portion of the connecting component 210 interferes with the anti-rotation protrusion 12 at this position to play an anti-rotation role.

[0097] In some embodiments of the present application, as shown in Figure 3-Figure 6 The screw rod 20 has an external thread 21, which can be used to connect with a nut or the like having an internal thread, so that the nut can press the connecting component 210 to further improve the connection reliability of the connecting component 210 and the fastener 100.

[0098] In some embodiments of the present application, the screw rod 20 has a connecting hole, and the hole wall of the connecting hole is provided with an internal thread. The internal thread can be used to connect with a bolt or the like having an external thread 21, and the bolt is located in the connecting hole of the screw rod 20, so that the riveting protrusion 31 forms a riveting edge 32 without interference with the bolt, and the size of the riveting edge 32 is designed more flexibly and variably, thereby reducing the riveting difficulty.

[0099] As shown in Figure 2 and Figure 6 The connecting structure 200 of the fastener 100 according to the second aspect of the present application includes a connecting component 210 and the fastener 100 according to the first aspect of the present application, and the connecting component 210 is provided with a mounting hole 211, and the fastener 100 is arranged in the mounting hole 211 and is riveted with the connecting component 210.

[0100] The connecting component 210 can be a connecting plate, a connecting block or the like. Taking the connecting plate as an example, the connecting plate can be a complete plate body which is integrally riveted with the fastener 100, and then is connected with other plate bodies or the like through cooperation with a nut or the like, i.e. the riveting protrusion 31 is deformed to realize the connection between the fastener 100 and the connecting plate. The connecting plate can be two or more plate bodies which need to be connected together, and the riveting protrusion 31 is deformed to realize the connection between the fastener 100 and the connecting plate, and the riveting protrusion 31 and the head 10 can also clamp the multiple plate bodies to realize the connection of the multiple plate bodies.

[0101] Therefore, by using the above-mentioned fastener 100, the riveting protrusion 31 can be used to form a riveting edge 32 by rolling, thereby eliminating the special tool for cutting the fastener 100 in the related art, and the size of the riveting edge 32 is easy to control, which is beneficial to simplify the structure of the cooperating connecting component 210, thereby simplifying the production process and reducing the cost.

[0102] In some embodiments, as shown in Figure 5and Figure 6 As shown, the riveted protrusion 31 is riveted to the edge of the connecting component 210 facing away from the head 10 to form a riveted edge 32 . The radial dimension of the riveted edge 32 along the connecting column 30 is 0.5 mm to 1.5 mm.

[0103] Within the above value range, the cuff 32 is a micro-cuff. While ensuring riveting reliability, the size of the cuff 32 can be reduced, making it less likely to interfere with surrounding structures. This further reduces the structural requirements for the mounting hole 211 on the connecting component 210, eliminating the need to provide space for the cuff 32. For example, in some specific embodiments, the radial dimensions of the cuff 32 along the connecting column 30 are 0.5 mm, 0.8 mm, 1 mm, 1.2 mm, and 1.5 mm.

[0104] A battery device 1000 according to a specific embodiment of the present invention will be described below with reference to the accompanying drawings.

[0105] like Figures 1-6 As shown, a battery device 1000 according to a specific embodiment of the present invention includes a housing 300 and a battery cell assembly located within the housing 300. The flange plate of the housing 300 is formed as a connecting component 210 and is provided with a mounting hole 211. The housing 300 is mounted to a frame 2100 of a vehicle 2000 via a fastener 100 passing through the mounting hole 211.

[0106] The fastener 100 includes a head 10, a connecting post 30, and a screw 20. The outer diameter of the head 10 is larger than that of the connecting post 30, and the outer diameter of the connecting post 30 is larger than that of the screw 20. The connecting post 30 connects the head 10 and the screw 20 at both axial ends. An external thread 21 is provided on the outer circumference of the screw 20; a rivet protrusion 31 is provided on the side of the connecting column 30 facing the screw 20, and the rivet protrusion 31 is an annular protrusion extending along the circumference of the screw 20, and the rivet protrusion 31 is spaced a certain distance from the outer circumference of the screw 20; a rivet groove 11 is provided on the side of the head 10 facing the connecting column 30, and the rivet groove 11 extends in the form of an annular groove along the circumference of the connecting column 30, and a plurality of anti-rotation protrusions 12 are provided in the rivet groove 11, and the plurality of anti-rotation protrusions 12 are evenly spaced along the circumference of the connecting column 30, and the anti-rotation protrusions 12 are spaced apart from the outer circumference of the connecting column 30 and connected to the groove side and groove bottom of the rivet groove 11, so that the rivet groove 11 is formed into a toothed groove.

[0107] The fastener 100 is riveted to the flange plate of the housing 300. Specifically, the connecting column 30 of the fastener 100 is inserted into the mounting hole 211. Riveting pressure is then applied to the riveted protrusion 31, causing it to curl radially outward and deform, achieving a slight folding effect, forming a riveted edge 32. The riveted edge 32 and the head 10 are respectively clamped on either side of the edge of the mounting hole 211, providing a fastening effect. The edge of the mounting hole 211 is clamped into the riveted groove 11 of the head 10, and the portion embedded in the riveted groove 11 interferes with the anti-rotation protrusion 12, providing an anti-rotation effect. Thus, the fastener 100 and the housing 300 are riveted together. The fastener 100 can further cooperate with the nut to achieve connection with the vehicle frame 2100, thereby achieving installation of the housing 300 on the vehicle frame 2100.

[0108] In the above embodiment, the mounting hole 211 on the box body 300 does not need to be set as a hole with a special shape, nor does it need to use special tooling. Riveting can be completed by applying pressure to the riveting protrusion 31 through a riveting die, which simplifies the operation process and reduces costs.

[0109] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other.

[0110] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A fastener, characterized in that: include: A head, a screw and a connecting column, wherein the connecting column connects the head and the screw, and an end surface of the connecting column facing the screw is provided with a riveted protrusion, and the riveted protrusion is radially spaced from the outer peripheral surface of the screw, wherein, The connecting column is used to pass through the mounting hole of the connecting component so that the head and the screw are respectively located on both sides of the connecting component, and the riveting protrusion is used to rivet with the edge of the connecting component on the side facing away from the head.

2. The fastener according to claim 1, wherein: The height of the riveting protrusion protruding from the connecting column is 0.5mm to 1.5mm.

3. The fastener according to claim 1, wherein: The riveting protrusion extends along the circumference of the connecting column to form an annular protrusion.

4. The fastener according to claim 1, wherein: The outer peripheral surface of the riveting protrusion is coplanar with the outer peripheral surface of the connecting column.

5. The fastener according to claim 1, wherein: A riveting groove is provided on a side of the head facing the connecting column.

6. The fastener according to claim 5, wherein: The rivet groove extends along the circumference of the connecting column to form an annular groove.

7. The fastener according to claim 6, wherein: An anti-rotation protrusion is provided in the riveting groove.

8. The fastener according to claim 7, wherein: There are multiple anti-rotation protrusions, and the multiple anti-rotation protrusions are evenly spaced along the circumference of the connecting column.

9. The fastener according to claim 7, wherein: The end surface of the anti-rotation protrusion facing away from the bottom wall of the riveting groove does not exceed the notch of the riveting groove.

10. The fastener according to claim 1, wherein An anti-rotation protrusion is provided on a side of the head facing the connecting column.

11. The fastener according to any one of claims 1 to 10, wherein: The screw rod has an external thread, or the screw rod has a connecting hole, and the hole wall of the connecting hole is provided with an internal thread.

12. A fastener connection structure, characterized in that: It comprises a connecting component and the fastener according to any one of claims 1 to 11, wherein the connecting component is provided with the mounting hole, and the fastener is passed through the mounting hole and riveted to the connecting component.

13. The fastener connection structure according to claim 12, wherein: The riveting protrusion is riveted to an edge of the connecting component on one side facing away from the head to form a riveted edge, and a dimension of the riveted edge along the radial direction of the connecting column is 0.5 mm to 1.5 mm.

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