CN109935957A - Integrated conductive and leak-proof fastener structure - Google Patents

Abstract

The invention discloses a kind of fastener constructions of the conductive locking leakage of integral type comprising: fastener has a surface, and the part on the surface is firm contact face；And conductive anti-loose structure, it is formed at the firm contact face, and the conductive anti-loose structure includes: fastener, there is a surface, and the part on the surface is firm contact face；And conductive anti-loose structure, it is formed at the firm contact face, and the conductive anti-loose structure includes: anti-loose structure, is PA polyamide, PMMA acryl resin, PE polyethylene, Epoxy epoxy resin, Silicone silica gel and/or rubber；Conductive structure is mixed in the anti-loose structure, and the conductive structure is carbon black, metal powder, filamentary silver and/or graphene；Thus locking functions can be had but also can also reach conductive function by making the fastener constructions not only.By implementation of the invention, it can make the coating structure on fastener that there is locking and drip-preventing function and reach conductive target.

Description

Integrated conductive and leak-proof fastener structure

technical field

The present invention is a conductive and anti-loosening fastener structure, especially a conductive and anti-loosening fastener structure using antenna fasteners and grounding screws and other related products that need to be tightly combined and conductive and anti-loosening.

Background technique

In recent years, with the advancement of wireless communication technology, in order to receive a large amount of information anytime and anywhere, the demand for outdoor communication antennas and grounding devices to avoid leakage has greatly increased. Generally, the connection of antenna fasteners or grounding screws will use anti-loose glue or anti-leakage glue material to waterproof.

As shown in FIGS. 1 and 2 , when the known antenna fastener 110 is applied to the combination of the antenna and the antenna base, when the anti-loosening adhesive structure P20 and the silver adhesive P21 are respectively applied to the part of the thread P30 of the antenna fastener 110 Position, the anti-loose and leak-proof glue structure P20 solves the leakage problem of the combination of the antenna fastener 110 and the base, but the anti-loose and leak-proof glue structure P20 is an insulating material. After the current CF1 passes through the screw thread P30 of the fastener, the current CF1 will be The anti-loose and leak-proof glue structure P20 is blocked, and only the current CF2 is conducted to the antenna base through the silver glue, so the transmission efficiency of the antenna signal is reduced. The firmware 110 is coated with two structures of the anti-loose and leak-proof glue structure P20 and the silver glue P21, which makes the manufacturing process time-consuming and labor-intensive.

As shown in FIGS. 3 and 4 , when the known grounding screw 120 is applied to the grounding connection between the circuit board 401 and the metal casing 403 , when the anti-loosening adhesive structure P20 is applied to the local position of the thread P30 of the grounding screw, the The grounding screw 120 fixes the circuit board 401, the copper post 402 and the metal casing 403 together, and the anti-loosening and leak-proof glue structure P20 on the grounding screw 120 is tightly combined with the thread P40 on the copper post 402, which can avoid the grounding screw 120 and the The copper pillar 402 is loose, but the anti-loose and leak-proof glue structure P20 is an insulating material. After the current CF1 passes through the thread P30 of the grounding screw 120, the current CF1 will be blocked by the anti-loose and leak-proof glue material P20. After the loose glue structure P20, the conductive function cannot be taken into account, and the grounding cannot be effectively completed. Only additional wires 405 can be connected to the solder joints 404 on the circuit board 401 and the metal casing 403 to ground the current CF2.

SUMMARY OF THE INVENTION

The main technical problem to be solved by the present invention is to provide an integrated conductive and anti-loosening fastener structure, which mainly aims to solve the conductive problem of the anti-loosening and leakage coating structure.

In order to solve the above-mentioned technical problems, a technical solution adopted by the present invention is to provide an integrated conductive and leak-proof fastener structure, including:

a fastener having a surface, a portion of which is a fastening contact surface; and

The conductive anti-loosening structure is formed on the fastening contact surface, and the conductive anti-loosening structure includes:

Anti-loose structure, which is PA polyamide resin, PMMA acrylic resin, PE polyethylene, Epoxy epoxy resin, Silicone silicone, and/or rubber;

A conductive structure, which is mixed in the anti-loose structure, and the conductive structure is carbon black, metal powder, silver wire, and/or graphene;

Therefore, the fastener structure can not only have the function of preventing loosening, but also achieve the function of conducting electricity.

In a preferred embodiment of the present invention, the fastener is an antenna fastener, and the part of the surface is a part of the thread surface of the antenna fastener.

In a preferred embodiment of the present invention, the fastener is a ground screw, and the part of the surface is a part of the thread surface of the ground screw.

In a preferred embodiment of the present invention, the anti-loosening structure is further mixed with a leak-proof structure of fluorine-containing resin and/or PU polyurethane, so that the fastener structure further has a leak-proof function.

In a preferred embodiment of the present invention, the fastener is an antenna fastener, and the part of the surface is a part of the thread surface of the antenna fastener.

In a preferred embodiment of the present invention, the fastener is a ground screw, and the part of the surface is a part of the thread surface of the ground screw.

By the implementation of the present invention, at least the following progressive effects can be achieved:

1. It can make the fasteners have the function of preventing loosening;

2. The fastener can be made leak-proof; and

3. It can make the fastener have the function of conducting electricity.

In order for any person familiar with the relevant art to understand the technical content of the present invention and implement it accordingly, and according to the content disclosed in this specification, the scope of the patent application and the drawings, any person familiar with the relevant art can easily understand the related objects and advantages of the present invention Therefore, the detailed features and advantages of the present invention will be described in detail in the embodiments.

Description of drawings

1 is a schematic diagram of a known antenna structure with leak-proof fasteners;

2 is a schematic diagram of a known antenna signal transmission with leak-proof fasteners;

3 is a schematic diagram of a ground screw structure of a known anti-loosening fastener;

Fig. 4 is a partial cross-sectional view of Fig. 3;

FIG. 5 is an embodiment diagram of an antenna structure of an integrated conductive anti-loosening fastener according to the present invention;

Figure 6 is a partial cross-sectional view of Figure 5;

FIG. 7 is an embodiment diagram of an antenna structure of an integrated conductive anti-loosening fastener according to the present invention;

Figure 8 is a partial cross-sectional view of Figure 7;

9 is a structural embodiment diagram of a ground screw of an integrated conductive anti-loosening fastener according to the present invention;

Figure 10 is a partial cross-sectional view of Figure 9;

FIG. 11 is a structural embodiment diagram of a ground screw of an integrated conductive anti-loosening fastener of the present invention; and

Figure 12 is a partial cross-sectional view of Figure 11;

The components in the drawings are marked as follows:

P100... Known anti-loosening and leak-proof fastener construction

P20……Anti-loosening glue structure

P21...Silver Glue

P30……Thread

P40... Threads of the base

100...One-piece conductive and leak-proof fastener structure

10... Fasteners

110…Antenna Fasteners

120...ground screw

130……Thread surface

140……Thread of base

20……Conductive anti-loosening structure

210……Anti-loosening structure

220……Conductive Structure

230…Leak-proof construction

30……Conductive anti-loosening structure

401... circuit board

402...copper column

403……Metal Chassis

404……Solder joints

405... Wires.

Detailed ways

As shown in FIG. 5 , FIG. 7 , FIG. 9 , and FIG. 11 , the present embodiment provides an integrated conductive and leak-proof fastener structure 100 , which includes: a fastener 10 ; and a conductive anti-loosening structure 20 .

Fastener 10, which is a mechanical element that can mechanically fasten one or more elements together. Fastener 10 can be, for example, an antenna solid piece 110 or a ground screw 120, etc., and the fastener 10 has a surface, and part of said surface is a fastening contact surface.

Specifically, the fastening contact surface refers to the contact surface between the fastener 10 and the thread 140 of the base, that is, for example, the thread surface 130 or the seating surface on the antenna fastener 110 or the grounding screw 120 .

The conductive anti-loosening structure 20 is formed on the fastening contact surface, that is to say, the conductive anti-loosening structure 20 is formed on the antenna fastener 110 or the part or seating surface of the screw thread surface 130 on the grounding screw 120, and also depends on the According to functional requirements, the conductive anti-loosening structure 20 can also be, for example, the conductive anti-loosening structure 30, and the coating method can include half circumference, opposite side, full circumference, seat surface, or head, etc.

The purpose of the conductive anti-loosening structure 20 is to enable the contact surface of the fastener 10 and the screw teeth 140 of the base to have the functions of conducting electricity and preventing loosening. Therefore, in order to achieve the above functions, the conductive anti-loosening structure 20 includes: an anti-loosening structure 210; and a conductive structure 220.

As shown in FIG. 6 and FIG. 8 , when the antenna with the conductive anti-loosening fastener 10 in this embodiment is applied to the antenna and the antenna base, when the conductive anti-loosening structure 20 or the conductive anti-loosening structure 30 is coated on the antenna The localized location of the threads 130 of the fastener 110 .

Because of the conductive function of the conductive anti-loosening structure 20 or the conductive anti-loosening structure 30, after the cable CF passes through the screws 130 of the fastener, the current CF can pass through the conductive anti-loosening structure 20 or the conductive anti-loosening structure 30 and continue to conduct to The screw thread 140 of the base, so the antenna fastener 110 can take into account the functions of anti-loosening and signal transmission at the same time after coating the conductive anti-loosening structure 20 or the conductive anti-loosening structure 30 .

As shown in FIG. 10 and FIG. 12 , when the ground screw with conductive anti-leakage in this embodiment is applied to the ground connection between the circuit board 401 and the metal casing 403 , when the conductive anti-loose structure 20 or the conductive anti-leakage structure is coated 30 At the local position of the thread 130 of the grounding screw 120, the grounding screw 120 fixes the circuit board 401, the copper column 402 and the metal casing 403 together, and the conductive anti-loosening structure 20 on the grounding screw 120 or the conductive anti-loosening The structure 30 is tightly combined with the screws 140 on the copper pillar 402 , which can prevent the ground screw 120 and the copper pillar 402 from loosening.

In addition, the conductive anti-loosening structure or the conductive anti-loosening structure 30 has a conductive function. After the current CF passes through the screw teeth 130 of the fastener, the current CF can pass through the conductive anti-loosening structure 20 or the conductive anti-loosening structure 30 and continue to conduct to the copper. The post 402 and the metal casing 403 are grounded afterward, so the grounding screw 120 can perform both anti-loosening and grounding functions after the conductive anti-loosening structure 20 or the conductive anti-loosening structure 30 is coated.

In order to increase the friction coefficient of the contact surface between the fastener 10 and the thread 140 of the base, and prevent the fixed fastener 10 and the base from being vibrated, which would cause loosening between the two, the coating structure is designed as a The anti-loose structure 210 is, for example, a PA polyamide resin, a PMMA acrylic resin, a PE polyethylene, an Epoxy epoxy resin, a Silicone silicone, and/or a rubber.

In addition, the above-mentioned anti-loose structure 210 is an insulating material. In order to make the anti-loose structure 210 have conductive properties at the same time, the conductive structure 220 with conductive properties is mixed into the anti-loose structure 210, such as a carbon black, a metal powder, a Silver wire, and/or a graphene, so that the structure of the fastener 10 combined with the coating structure can not only have the function of preventing loosening, but also achieve the function of conducting electricity.

In order to make the conductive anti-loosening structure 20 have a leak-proof function at the same time, a leak-proof structure 230, such as a fluorine-containing resin and/or a PU polyurethane leak-proof structure 230, is further mixed into the anti-loosening structure 210, so that the conductive anti-loosening structure 230 is further mixed. The structure 20 becomes a conductive anti-leakage structure 30 with good elasticity, when the secondary conductive anti-leakage structure 30 is in contact with the fastener 10 or the screw teeth 140 of the base, the structure of the fastener 10 is further improved. With leak-proof function.

In order to confirm the conductive function of the conductive anti-loosening structure 30, it can be confirmed by electrical impedance measurement. For example, the coating on the grounding screw 120 is a full-circumferential surface, and the thickness of the coating meets the anti-loosening requirements. The electrical impedance measurement is performed in the area, and the result shows that the grounding screw 120 with the conductive anti-leakage structure 30 measures a low resistance value, indicating that the coating structure can conduct electricity; while the known anti-leakage material is under the same coating thickness, the resistance value is infinite, indicating that the coating structure is insulating.

Under the coating thickness as described above, a torque test is performed to confirm the anti-loosening function of the material, such as conforming to the IFI-524 or IFI-124 of the International Industrial Fasteners Association (Industrial Fasteners Institute). The example is: The one-piece conductive and anti-loosening M2 grounding screw 120 is locked for the first time with the component (1 in), and then the M2 grounding screw 120 is pulled out of a component (1 out) and the fifth time after the first locking. For one element (5 out), the torque value of each condition meets the requirements of the anti-loosening function, and the torque results are shown in the following table.

However, the above-mentioned embodiments are used to illustrate the characteristics of the present invention, and their purpose is to enable those skilled in the art to understand the content of the present invention and implement them accordingly, rather than to limit the scope of the invention. Equivalent modifications or modifications completed in the spirit of the disclosure should still be included in the scope of the patent application described below.

Claims (6)

1. a kind of fastener constructions of the conductive locking leakage of integral type characterized by comprising

Fastener, has a surface, and the part on the surface is firm contact face；And

Conductive anti-loose structure is formed at the firm contact face, and the conductive anti-loose structure includes:

Anti-loose structure is PA polyamide, PMMA acryl resin, PE polyethylene, Epoxy epoxy resin, Silicone Silica gel and/or rubber；

Conductive structure is mixed in the anti-loose structure, but the conductive structure be carbon black, metal powder, filamentary silver and/or Graphene；

Thus locking functions can be had but also can also reach conductive function by making the fastener constructions not only.

2. the fastener constructions of the conductive locking leakage of integral type according to claim 1, which is characterized in that the fastener is Antenna fastener, but the part on the surface is the part on the thread surface of the antenna fastener.

3. the fastener constructions of the conductive locking leakage of integral type according to claim 1, which is characterized in that the fastener is One grounding screw, but the part on the surface is the part on the thread surface of the grounding screw.

4. the fastener constructions of the conductive locking leakage of integral type according to claim 1, which is characterized in that the anti-loose structure It is further mixed with the leakage-proof structure of fluorine-containing element resin and/or PU polyurethane, has the fastener constructions further There is drip-preventing function.

5. the fastener constructions of the conductive locking leakage of integral type according to claim 4, which is characterized in that the fastener is Antenna fastener, but the part of the antenna fastener surface is the part on the thread surface of the antenna fastener.

6. the fastener constructions of the conductive locking leakage of integral type according to claim 4, which is characterized in that the fastener is Grounding screw, but the part on the grounding screw surface is the part on the thread surface of the grounding screw.