CN112762078B - Fastening assembly and mounting method thereof - Google Patents
Fastening assembly and mounting method thereof Download PDFInfo
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- CN112762078B CN112762078B CN202110032116.3A CN202110032116A CN112762078B CN 112762078 B CN112762078 B CN 112762078B CN 202110032116 A CN202110032116 A CN 202110032116A CN 112762078 B CN112762078 B CN 112762078B
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- screw
- fastening assembly
- screw hole
- resin
- conductive
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B33/00—Features common to bolt and nut
- F16B33/06—Surface treatment of parts furnished with screw-thread, e.g. for preventing seizure or fretting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/56—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation one conductor screwing into another
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
The embodiment of the invention discloses a fastening assembly and a mounting method of the fastening assembly. The fastening assembly comprises a screw and a connecting piece, wherein the connecting piece is provided with a screw hole matched with the screw, a screw thread part of the screw is coated with a first material, a second material is dripped into the screw hole, the first material and the second material are solidified after being contacted with each other, and a conductive path is formed between the screw and the screw hole. Meanwhile, the mounting method of the fastening assembly of the embodiment of the present invention forms the conductive path between the screw and the screw hole by coating the first material on the screw part of the screw and dropping the second material into the screw hole, assembling the screw and the screw hole such that the first material is cured after contacting the second material. Therefore, according to the technical scheme of the embodiment of the invention, the screw hole of the screw can be effectively prevented from loosening, and the performance of transmitting electric signals and radio frequency signals is improved.
Description
Technical Field
The embodiment of the invention relates to the field of fasteners, in particular to a fastening assembly and a mounting method of the fastening assembly.
Background
Screws are a common fastener and are widely used in machinery, electrical appliances and buildings. The material is generally metal or plastic, and the shape is cylindrical. The screw surface often has a continuous raised portion of a specific cross-section, called a thread, made in the form of a spiral.
In the field of electronic communication, a screw has a fastening function and also needs to transmit a radio frequency signal or be grounded; in the field of mechanical products, the screws are loosened due to the fact that the structure is always in a moving state and is subjected to external stress for a long time. In the prior art, the screw can be prevented from loosening, but the conductivity is poor, the loosening prevention strength is poor, so that the service life of the screw is shortened, and partial functions are limited.
Disclosure of Invention
In view of this, embodiments of the present invention provide a fastening assembly and a method for installing the fastening assembly, which can provide better fastening strength for a screw and a screw hole structure, and improve the electrical conductivity thereof, so that the fastening assembly has stronger usability.
In a first aspect, an embodiment of the present invention provides a fastening assembly, including:
a screw having a threaded portion coated with a first material; and
the connecting piece is provided with a screw hole matched with the thread part, and a second material is dripped into the screw hole;
the first material is cured after contact with the second material to form a cured conductive path between the screw and the screw hole.
Preferably, the first material includes a conductive material and a resin having an active functional group;
the second material includes the conductive material and a curing agent.
Preferably, the first material comprises a conductive material and a curing agent;
the second material includes the conductive material and a resin having an active functional group.
Preferably, the conductive material includes one or more of metal particles, carbon fiber particles, graphite particles, graphene particles, carbon black particles, and carbon nanotube particles.
Preferably, the reactive functional group is one of a hydroxyl functional group, a carboxyl functional group and an epoxy functional group, and the resin is one of an epoxy resin, a polyurethane resin, a polyester resin, a polyimide resin and a polyamide resin.
Preferably, the curing agent is one of amine chemical agents, isocyanate chemical agents and anhydride chemical agents.
Preferably, the resin having a reactive functional group is cured after being contacted with the curing agent and heated to a predetermined temperature.
Preferably, the first material is a colloid;
the second material is a colloid.
Preferably, the first material is a first microcapsule material, and the first microcapsule material is a conductive material coated with a resin with active functional groups; and/or
The second material is a second microcapsule material, and the second microcapsule material is a conductive material coated curing agent.
In a second aspect, an embodiment of the present invention provides a method for installing a fastening assembly, including:
coating a first material on a threaded portion of a screw;
dripping the second material into the screw hole;
the screw and the threaded hole are assembled such that the first material cures upon contact with the second material, thereby forming an electrically conductive path between the screw and the threaded hole.
Preferably, said assembling said screw and said screw hole further comprises:
heating the assembled screw and screw hole to a predetermined temperature to cure the first material after contacting the second material.
The fastening structure of the embodiment of the invention forms a solidified conductive path between the screw and the screw hole after the first material is contacted with the second material through the first material coated on the screw thread part of the screw and the second material dripped into the screw hole. Meanwhile, the mounting method of the fastening assembly of the embodiment of the present invention forms the conductive path between the screw and the screw hole by applying the first material to the screw part of the screw and dropping the second material into the screw hole, and assembling the screw and the screw hole so that the first material is cured after being in contact with the second material. Therefore, the technical scheme of the embodiment of the invention can increase the adhesive force of the fastening structure and simultaneously enable the fastening structure to have good conductive performance.
Drawings
The above and other objects, features and advantages of embodiments of the present invention will become more apparent from the following description of embodiments of the present invention with reference to the accompanying drawings, in which:
FIG. 1 is a side cross-sectional view of a first embodiment of a fastening assembly of an embodiment of the present invention;
FIG. 2 is a partially enlarged schematic view of an assembled structure of a fastener assembly of an embodiment of the invention;
FIG. 3 is a side cross-sectional view of a second embodiment of a fastening assembly of an embodiment of the present invention;
FIG. 4 is a schematic flow chart of a method of installing a fastener assembly according to an embodiment of the present invention;
FIG. 5 is a schematic flow chart of step S300 of a method of installing a fastener assembly according to an embodiment of the invention;
description of reference numerals:
1-a screw; 10-the threaded portion of the screw; 11-a first material; 2-a connector; 20-screw holes; 21-a second material; 3-curing the colloid.
Detailed Description
The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, flows, components and circuits have not been described in detail so as not to obscure the present invention.
Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.
Unless the context clearly requires otherwise, throughout this specification, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".
In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are intended to be inclusive and mean that, for example, they may be fixedly connected or detachably connected or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
FIG. 1 is a side cross-sectional view of a first embodiment of a fastening assembly of an embodiment of the present invention. Fig. 2 is a partially enlarged schematic view of an assembling structure of the fastening assembly of the embodiment of the present invention. As shown in fig. 1 and 2, the fastening assembly includes a screw 1 and a connecting member 2, and the connecting member 2 has a screw hole 20 adapted to the screw 1. The screw thread portion 10 of the screw is coated with a first material 11 and a second material 21 is dropped into the screw hole 20.
The screw 1 and the screw hole 20 are at least partially made of metal conductive materials. The first material 11 includes a conductive material and a resin having an active functional group, and the second material 21 includes the conductive material and a curing agent. The composition of the first material 11 and the second material 21 may be interchanged, i.e. the first material 11 comprises the conductive material and the curing agent, and the second material 21 comprises the conductive material and the resin with the reactive functional group.
The conductive material comprises one or more of metal particles, carbon fiber particles, graphite particles, graphene particles, carbon black particles and carbon nanotube particles. The resin with active functional groups is also a high molecular compound with active groups. The reactive functional group is one of a hydroxyl functional group, a carboxyl functional group and an epoxy functional group. The resin is one of epoxy resin, polyurethane resin, polyester resin, polyimide resin and polyamide resin. The reactive functional group and the resin are connected to each other by a chemical bond. The curing agent is an additive that chemically reacts with the resin to change the resin into a solid. The curing agent is one of amine chemical reagent, isocyanate chemical reagent and anhydride chemical reagent. Since the conductive material is not dissolved in the resin having the active functional group and the curing agent, and does not chemically react with both, that is, the conductive material is suspended in both of the first material 11 and the second material 21.
The first material 11 is cured after contact with the second material 21 to form a cured conductive path between the screw 1 and the threaded hole 20. That is, after the first material 11 and the second material 21 are contacted with each other, the resin having the reactive functional group in the first material 11 and the curing agent in the second material 21 are subjected to a cross-linking reaction to form the cured colloid 3. The cured colloid 3 is mixed with a conductive material, so that a conductive path can be formed between the screw 1 and the screw hole 20. The cured resin 3 can make the adhesion between the fastening components stronger, and make the connecting member 2 with the screw holes 20 capable of better transmitting or conducting electrical signals and radio frequency signals.
In the present embodiment, the first material 11 and the second material 21 are liquid. More preferably, the first material 11 and the second material 21 may be a gel. The glue has certain viscosity and can be better attached to the screw 1 and the screw hole 20.
Further, due to the difference in chemical properties of the first material 11 and the second material 21, the cross-linking reaction between the resin having the reactive functional group and the curing agent requires different reaction conditions. In one case, the first material 11 and the second material 21 are in contact at normal temperature to form the cured gel 3, and in another case, the first material 11 and the second material 21 are heated to a predetermined temperature to form the cured gel 3. Optionally, this reaction condition varies depending on the specific chemistry of the first material 11 and the second material 21.
FIG. 3 is a side cross-sectional view of a second embodiment of a fastening assembly of an embodiment of the present invention. As shown in fig. 3, in the present embodiment, the first material 11 is a first microcapsule material, that is, a conductive material wraps a resin with active functional groups, and at this time, the first material 11 is formed in a solid powder state, but the solid powder in the form of microcapsules may be dispersed in a liquid for use. Optionally, the second material 21 may also be a second microcapsule material, i.e. a conductive material encapsulating the curing agent.
The first microcapsule material as well as the second microcapsule material may be obtained by a microcapsule technique. The microcapsule technology is a technology of wrapping a wall material on the surface of a core material by a physical or chemical means, that is, a microcapsule body with a shell as the wall material and a content as the core material and with a diameter of 1 to 1000 μm is formed. Wherein, the core material is usually an active substance, and the microcapsule technology can protect the active ingredients of the core material.
In this embodiment, the resin having the active functional group in the first material 11 may be used as the core material, and the conductive material may be used as the wall material. And then polymerizing the conductive material on the surface of the resin with the active functional group by a physical or chemical method to form a first microcapsule material. In the state that the screw 1 is locked into the screw hole 20, the microcapsule is subjected to external pressure, so that the wall material is broken, the core material, namely the resin with the active functional group, in the wall material is released, and the curing agent in the second material 21 is subjected to a cross-linking reaction to generate a cured colloid 3, so that a conductive path is formed while the screw 1 and the screw hole 20 are fixed.
In summary, the fastening assembly can be sold and used directly as a product in a sealed and moisture-retaining manner after the first material 11 is applied to the screw 1 and the second material 21 is dropped into the screw hole 20. In another case, it is also possible to apply the first material 11 to the screw 1 or to drip the second material 21 into the screw hole 20 before the screw 1 is fitted into the screw hole 20, as follows.
FIG. 4 is a flow chart illustrating a method of installing a fastener assembly according to an embodiment of the present invention. As shown in fig. 4, the installation method of the fastening assembly includes steps S100 to S300 as follows:
step S100, coating a first material on a threaded part of the screw.
A first material 11 is applied to the threaded portion 10 of the screw. Alternatively, means other than coating may be selected, such as spraying, brushing, or dipping. This step may be performed in advance or before the screw 1 is assembled with the screw hole 20.
And S200, dropping the second material into the screw hole.
A second material 21 is dropped inside the screw hole 20. Alternatively, a means other than dropping, such as injection, spraying, or dispensing, may be selected. This step may be performed in advance or before the screw 1 is assembled with the screw hole 20.
And step S300, assembling screws and screw holes to form a solidified colloid.
The screw 1 is locked into the threaded hole 20. The first material 11 is contacted with the second material 21 and then solidified, and a solidified colloid 3 is formed. The cured glue 3 can fasten the screw 1 to the screw hole 20 and form a conductive path therebetween.
Fig. 5 is a schematic flow chart of step S300 in the installation method of the fastening assembly according to the embodiment of the present invention. In an alternative embodiment, the first material 11 and the second material 21 are chemically reactive at ambient temperature. In an alternative embodiment, the first material 11 and the second material 21 are heated to a predetermined temperature to chemically react to form the cured gel 3. In order to adapt the chemical properties of the first material 11 and the second material 21, the step S300 further includes the following steps S310 and S320:
and S310, assembling the screw and the screw hole.
In particular, the screw 1 can be locked into the threaded hole 20 by means of a manual or electric tool or an assembly robot.
And step S320, heating the assembled screw and the screw hole to a preset temperature.
The assembled screw 1 and the screw hole 20 are heated to a predetermined temperature so that the first material 11 and the second material 21 chemically react to form a cured gel 3. For example, the assembled fastening assembly is placed in an oven or brought to a predetermined temperature using a heat gun to perform the chemical reaction. This step is performed according to the specific chemical properties of the first material 11 and the second material 21, so that the reaction is more active and the reaction effect is better.
The embodiment of the invention discloses a fastening assembly and a mounting method of the fastening assembly. The fastening assembly comprises a screw and a connecting piece, wherein the connecting piece is provided with a screw hole matched with the screw, the threaded part of the screw is coated with a first material, a second material is dripped into the screw hole, the first material and the second material are solidified after being contacted with each other, and a conductive path is formed between the screw and the screw hole. Meanwhile, the mounting method of the fastening assembly of the embodiment of the present invention forms the conductive path between the screw and the screw hole by coating the first material on the screw part of the screw and dropping the second material into the screw hole, assembling the screw and the screw hole such that the first material is cured after contacting the second material. Therefore, according to the technical scheme of the embodiment of the invention, the screw hole of the screw can be effectively prevented from loosening, and the performance of transmitting electric signals and radio frequency signals is improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A fastening assembly, comprising:
a screw (1) having a threaded portion (10) coated with a first material (11); and
the connecting piece (2) is provided with a screw hole (20) matched with the thread part (10), and a second material (21) is dripped into the screw hole (20);
the first material (11) is heated to a preset temperature after being contacted with the second material (21) and then is solidified, so that a solidified conductive path is formed between the screw (1) and the screw hole (20);
the first material (11) and/or the second material (21) are/is a microcapsule material, and the wall material of the microcapsule material is a conductive material.
2. The fastening assembly according to claim 1, wherein the first material (11) comprises a conductive material and a resin with reactive functional groups;
the second material (21) includes the conductive material and a curing agent.
3. The fastening assembly according to claim 1, wherein the first material (11) comprises a conductive material and a curing agent;
the second material (21) includes the conductive material and a resin having an active functional group.
4. The fastening assembly of claim 2 or 3, wherein the conductive material comprises one or more of metal particles, carbon fiber particles, graphite particles, graphene particles, carbon black particles, and carbon nanotube particles.
5. The fastening assembly of claim 2 or 3, wherein the reactive functional group is one of a hydroxyl functional group, a carboxyl functional group, and an epoxy functional group, and the resin is one of an epoxy resin, a polyurethane resin, a polyester resin, a polyimide resin, and a polyamide resin.
6. The fastening assembly of claim 2 or 3, wherein the curing agent is one of an amine-based chemical agent, an isocyanate-based chemical agent, and an anhydride-based chemical agent.
7. The fastening assembly according to claim 2 or 3, wherein the resin having the reactive functional group is cured after being heated to a predetermined temperature after being contacted with the curing agent.
8. The fastening assembly according to claim 1, characterized in that the first material (11) is a gel;
the second material (21) is a gel.
9. The fastening assembly according to claim 1, characterized in that the first material (11) is a first microcapsule material, which is a conductive material coated with a resin with active functional groups; and/or
The second material (21) is a second microcapsule material, and the second microcapsule material is a conductive material coated curing agent.
10. A method of installing a fastener assembly, comprising:
coating a first material (11) on a threaded portion (10) of the screw;
dropping the second material (21) into the screw hole (20);
assembling the screw (1) and the screw hole (20), heating the assembled screw (1) and screw hole (20) to a predetermined temperature to cause the first material (11) to contact with the second material (21) and then to cure, thereby forming a conductive path between the screw (1) and the screw hole (20);
the first material (11) and/or the second material (21) are/is a microcapsule material, and the wall material of the microcapsule material is a conductive material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110032116.3A CN112762078B (en) | 2021-01-11 | 2021-01-11 | Fastening assembly and mounting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110032116.3A CN112762078B (en) | 2021-01-11 | 2021-01-11 | Fastening assembly and mounting method thereof |
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| Publication Number | Publication Date |
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| CN112762078A CN112762078A (en) | 2021-05-07 |
| CN112762078B true CN112762078B (en) | 2023-03-31 |
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| CN202110032116.3A Active CN112762078B (en) | 2021-01-11 | 2021-01-11 | Fastening assembly and mounting method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE757278R (en) * | 1965-08-02 | 1971-03-16 | Ncr Co | DEVICE |
| JP2000353424A (en) * | 1999-06-11 | 2000-12-19 | Casio Comput Co Ltd | Anisotropic conductive adhesive, conductive connection structure and conductive connection method |
| US6846779B1 (en) * | 2000-03-24 | 2005-01-25 | Omnitechnik Mikroverkapselungsgesellschaft Mbh | Coating compositions having antiseize properties for a disassemblable socket/pin and/or threaded connections |
| US7038920B2 (en) * | 2003-06-30 | 2006-05-02 | Intel Corporation | System to mount electrical modules |
| KR101096677B1 (en) * | 2009-05-06 | 2011-12-22 | 중앙대학교 산학협력단 | Anisotropic conductive adhesive, method for forming nana conductive pattern and method for packaging electronic parts using the same |
| WO2011069891A1 (en) * | 2009-12-08 | 2011-06-16 | Basf Se | Method for producing charge-structured coatings |
| JP2015137700A (en) * | 2014-01-22 | 2015-07-30 | トヨタ自動車株式会社 | Earthing bolt |
| JP2015137701A (en) * | 2014-01-22 | 2015-07-30 | トヨタ自動車株式会社 | Fastening method and fastening structure |
| JP6267137B2 (en) * | 2015-01-27 | 2018-01-24 | 株式会社ニッセイテクニカ | Conductive locking agent composition, conductive locking agent containing the same, and fastener |
| CN106118540B (en) * | 2016-07-21 | 2018-07-03 | 东莞市雷兹盾电子材料有限公司 | The single-component conductive glue of soft and its preparation, application method |
| CN110268028B (en) * | 2017-02-06 | 2021-06-22 | 李京燮 | Method for preparing anisotropic conductive adhesive for fine pitch and anisotropic conductive adhesive for fine pitch prepared according to the method |
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Effective date of registration: 20230725 Address after: No.399, Shengxun Road, Zhili Town, Wuxing District, Huzhou, Zhejiang Province 313000 Patentee after: Huzhou Luxshare Precision Industry Co.,Ltd. Address before: 215324 No.399, Baisheng Road, Jinxi Town, Kunshan City, Suzhou City, Jiangsu Province Patentee before: LANTO ELECTRONIC Ltd. |
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Effective date of registration: 20230831 Address after: 215324 No.399, Baisheng Road, Jinxi Town, Kunshan City, Suzhou City, Jiangsu Province Patentee after: LANTO ELECTRONIC Ltd. Address before: No.399, Shengxun Road, Zhili Town, Wuxing District, Huzhou, Zhejiang Province 313000 Patentee before: Huzhou Luxshare Precision Industry Co.,Ltd. |