阅读说明：本技术 一种防松脱电连接针脚和防松脱电连接器 (Anti-loosening electric connection pin and anti-loosening electric connector ) 是由 张继胜 于 2021-06-30 设计创作，主要内容包括：本发明提供一种防松脱电连接针脚和防松脱电连接器,公插针脚和母插针脚之间能够相互插接及分离；第一种情况,公插针脚外表柱形面的凹槽内设置膨胀块,母插针脚的内表筒形面设置膨胀卡槽；第二种情况,公插针脚的外表柱形面设置膨胀卡槽,母插针脚内表筒形面的凹槽内设置膨胀块；膨胀块的体积根据通电情况发生变化,膨胀块通电后体积增大,从公插针脚的外表凸出、或者从母插针脚内表凸出,从而卡入膨胀卡槽；断电后膨胀块回缩入凹槽内恢复原状。本发明通过膨胀块在连接通电后与膨胀卡槽相互卡接,增大了反向排出时的阻力,有效地防止松脱问题；通过膨胀块额外增加了接触面积,提升了针脚的导电能力。(The invention provides an anti-loose electric connecting pin and an anti-loose electric connector, wherein a male pin and a female pin can be mutually inserted and separated; in the first situation, an expansion block is arranged in a groove on the outer cylindrical surface of the male pin, and an expansion clamping groove is arranged on the inner cylindrical surface of the female pin; in the second situation, an expansion clamping groove is formed in the cylindrical surface of the outer surface of the male pin, and an expansion block is arranged in a groove in the cylindrical surface of the inner surface of the female pin; the volume of the expansion block changes according to the power-on condition, the volume of the expansion block is increased after the expansion block is powered on and protrudes from the outer surface of the male pin or protrudes from the inner surface of the female pin, so that the expansion block is clamped into the expansion clamping groove; and after the power failure, the expansion block retracts into the groove to restore the original state. According to the invention, the expansion block is mutually clamped with the expansion clamping groove after being connected and electrified, so that the resistance in reverse discharge is increased, and the problem of loosening is effectively prevented; the contact area is additionally increased through the expansion blocks, and the conductive capacity of the pins is improved.)

1. The anti-loosening electric connection pin is characterized by comprising a cylindrical male pin (1) and a cylindrical female pin (2), wherein the male pin (1) and the female pin (2) can be matched, inserted and separated with each other;

an expansion block (3) is arranged in a groove on the outer cylindrical surface of the male pin (1), and an expansion clamping groove (4) is arranged on the inner cylindrical surface of the female pin (2);

or an expansion clamping groove (4) is formed in the cylindrical surface of the outer surface of the male pin (1), and an expansion block (3) is arranged in a groove in the cylindrical surface of the inner surface of the female pin (2);

the volume of the expansion block (3) is increased after the expansion block is electrified, and the expansion block protrudes from the outer surface of the male pin (1) or protrudes from the inner surface of the female pin (2), so that the expansion block is clamped into the expansion clamping groove (4); and after the power failure, the expansion block (3) retracts into the groove to restore the original state.

2. Anti-loose electrical connection pin according to claim 1, characterized in that the expansion block (3) is a nickel zinc alloy or a piezoelectric ceramic.

3. Anti-loose electrical connection pin according to claim 2, characterized in that the groove of the cylindrical surface of the male pin (1) is a spherical groove or the groove of the cylindrical surface of the female pin (2) is a spherical groove.

4. Anti-loose electrical connection pin according to claim 2, characterized in that the expansion blocks (3) are uniformly distributed in a lattice shape, and the expansion slots (4) are in a lattice shape or an annular groove.

5. The anti-loose electrical connection pin according to claim 2, characterized in that the end of the male pin (1) and the end of the female pin (2) are respectively fixedly connected to a buried plate (5).

6. The anti-loose electrical connection pin according to any one of claims 1 to 5, characterized in that a magnetic coil is spirally arranged around the inside of the body of the male pin (1), the magnetic coil and the male pin (1) are insulated from each other, and the magnetic coil is connected to a power supply circuit of the male pin (1);

the bottom surface of the inner cavity of the female pin (2) is provided with a magnetic suction block.

7. The anti-loose electrical connection pin according to any one of claims 1 to 5, characterized in that a magnetic coil is spirally arranged around the inside of the body of the female pin (2), the magnetic coil is insulated from the female pin (2), and the magnetic coil is connected to a power supply circuit of the female pin (2);

the outer end part of the male pin (1) is provided with a magnetic absorption block.

8. The anti-loose electrical connection pin according to any one of claims 1 to 5, characterized in that a magnetic coil is spirally arranged around the inside of the body of the male pin (1), the magnetic coil and the male pin (1) are insulated from each other, and the magnetic coil is connected to a power supply circuit of the male pin (1);

a magnetic coil is spirally arranged in the body of the female pin (2) in a surrounding manner, the magnetic coil and the female pin (2) are insulated from each other, and the magnetic coil is connected to a power supply loop of the female pin (2);

and the magnetic coil on the male pin (1) and the magnetic coil on the female pin (2) are opposite in magnetic pole after being electrified.

9. An anti-loose electrical connector comprising the anti-loose electrical connection pin of any one of claims 1 to 8; the anti-loosening electric connector comprises a male plug and a female plug, at least two male plug pins (1) are arranged on a base of the male plug, and at least two female plug pins (2) are arranged on a base of the female plug.

Technical Field

The invention relates to the technical field of electric connection, in particular to an anti-loosening electric connection pin. In addition, the invention also relates to an anti-loosening electric connector.

Background

With the development of cloud computing applications, informatization gradually covers various fields of society, people's daily work and life are more and more communicated through networks, the amount of network data is increasing, and the number of hard disks serving as containers of data is also increasing. Many large capacity storage servers are in operation to meet the demands for storage, processing and service of increasing amounts of data.

Due to the characteristics of the storage server, a large power supply terminal is required to ensure the current capacity of a large current, and the working process is required to be ensured not to be loosened. In order to ensure the connection firmness, the currently adopted mode of the electric connector is a lock screw type, two additional bolts are additionally arranged on two sides of a joint to be in physical connection with a PCB, and although the screw tightening mode can prevent loosening, the mutual electric connection between a male plug and a female plug is easy to deflect due to overlarge tightening force, so that the contact area between the male plug and the female plug is reduced on the contrary, and the power failure problem caused by poor contact is generated; and can't spacing when screwing up, easy cause the PCB integrated circuit board damaged because of the power of screwing up is too big, appear the short circuit between screw and the PCB board and burn the board.

For those skilled in the art, how to prevent the plug from loosening and ensure the conductive contact area is a technical problem to be solved at present.

Disclosure of Invention

The invention provides an anti-loosening electric connection pin which can effectively prevent loosening and increase the conductive contact area, and the specific scheme is as follows:

an anti-loose electric connection pin comprises a cylindrical male pin and a cylindrical female pin, wherein the male pin and the female pin can be matched, inserted and separated with each other;

an expansion block is arranged in a groove on the cylindrical surface of the outer surface of the male pin, and an expansion clamping groove is arranged on the cylindrical surface of the inner surface of the female pin;

or an expansion clamping groove is formed in the cylindrical surface of the outer surface of the male pin, and an expansion block is arranged in a groove in the cylindrical surface of the inner surface of the female pin;

after the expansion block is electrified, the volume of the expansion block is increased, and the expansion block protrudes from the outer surface of the male pin or protrudes from the inner surface of the female pin, so that the expansion block is clamped into the expansion clamping groove; and after the power is cut off, the expansion block retracts into the groove to restore the original state.

Optionally, the expansion block is nickel-zinc alloy or piezoelectric ceramic.

Optionally, the groove of the cylindrical surface on the outer surface of the male pin foot is a spherical groove, or the groove of the cylindrical surface on the inner surface of the female pin foot is a spherical groove.

Optionally, the expansion blocks are uniformly distributed in a lattice shape, and the expansion clamping grooves are in a lattice shape or annular grooves.

Optionally, the end of the male pin and the end of the female pin are respectively and fixedly connected with the embedded plate.

Optionally, a magnetic coil is spirally arranged around the inside of the body of the male pin, the magnetic coil and the male pin are insulated from each other, and the magnetic coil is connected to a power supply circuit of the male pin;

the bottom surface of the inner cavity of the female pin is provided with a magnetic suction block.

Optionally, a magnetic coil is spirally arranged around the inside of the female pin body, the magnetic coil and the female pin are insulated from each other, and the magnetic coil is connected to a power supply circuit of the female pin;

and the outer end part of the pin of the male plug is provided with a magnetic suction block.

Optionally, a magnetic coil is spirally arranged around the inside of the body of the male pin, the magnetic coil and the male pin are insulated from each other, and the magnetic coil is connected to a power supply circuit of the male pin;

a magnetic coil is spirally arranged in the female pin body in a surrounding manner, the magnetic coil is insulated from the female pin, and the magnetic coil is connected to a power supply loop of the female pin;

and the magnetic coil on the male pin is opposite to the magnetic pole generated after the magnetic coil on the female pin is electrified.

The invention also provides an anti-loose electric connector which comprises any one anti-loose electric connecting pin; the anti-loosening electric connector comprises a male plug and a female plug, at least two male plug pins are arranged on a base of the male plug, and at least two female plug pins are arranged on a base of the female plug.

The invention provides an anti-loose electric connection pin, wherein a cylindrical male pin and a cylindrical female pin can be matched, inserted and separated with each other; in the first situation, an expansion block is arranged in a groove on the outer cylindrical surface of the male pin, and an expansion clamping groove is arranged on the inner cylindrical surface of the female pin; in the second situation, an expansion clamping groove is formed in the cylindrical surface of the outer surface of the male pin, and an expansion block is arranged in a groove in the cylindrical surface of the inner surface of the female pin; in the two situations, the expansion clamping groove and the expansion block can be matched with each other, the volume of the expansion block changes according to the power-on situation, the volume of the expansion block is increased after the expansion block is powered on, and the expansion block protrudes from the outer surface of the male pin or protrudes from the inner surface of the female pin, so that the expansion block is clamped into the expansion clamping groove; and after the power failure, the expansion block retracts into the groove to restore the original state. According to the invention, the expansion block is mutually clamped with the expansion clamping groove after being connected and electrified, so that the resistance in reverse discharge is increased, and the problem of loosening is effectively prevented; the contact area between public plug pin and the female plug pin is not reduced after the expansion piece volume increases to additionally increase contact area through the expansion piece, promoted the conductive capability of stitch. The anti-loosening electric connector has the same technical effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a view of the structure of a male pin;

fig. 2 is a structural diagram of a female pin.

The figure includes:

the pin comprises a male pin 1, a female pin 2, an expansion block 3, an expansion clamping groove 4 and a buried fixing plate 5.

Detailed Description

The invention provides an anti-loosening electric connection pin which can effectively prevent loosening and increase the conductive contact area.

In order to make the technical solutions of the present invention better understood, the following detailed description of the anti-loose electrical connection pins and the anti-loose electrical connector will be made with reference to the accompanying drawings and the specific embodiments.

The invention discloses an anti-loosening electric connection pin, wherein a male pin 1 and a female pin 2 are made of metal materials and can conduct electricity when being in contact with each other. Public plug pin 1 is the cylindricality structure, and female plug pin 2 is the tubular structure, and public plug pin 1's external dimension matches each other with the inner chamber size of female plug pin 2, and public plug pin 1 and female plug pin 2 can match each other and peg graft and separate, and when public plug pin 1 inserted female plug pin 2 inner chamber, public plug pin 1's surface and the mutual conductive contact of internal surface of female plug pin 2. Referring to fig. 1 and fig. 2, the structure diagrams of the male pin and the female pin are shown respectively; the outer surface of the male pin 1 is generally cylindrical, the inner surface of the female pin 2 is generally cylindrical, and after the male pin and the female pin are mutually inserted, all the periphery of the outer surface of the male pin 1 can be in contact with the periphery of the inner surface of the female pin 2.

Under the design principle of the invention, two matching design schemes are provided.

Firstly, a groove is formed in the outer cylindrical surface of a male pin 1, an expansion block 3 is arranged in the groove in the outer cylindrical surface of the male pin 1, the expansion block 3 is fixed on the outer surface of the male pin 1 in a welding, riveting or other mode, and the expansion block 3 and the body part of the male pin 1 are integrated into a whole; female corresponding expansion card groove 4 that sets up of interior surface cylindric face of inserting stitch 2, expansion card groove 4 is the sunken groove structure who sets up of female 2 internal surfaces of inserting stitch, and its position is relative with expansion block 3, and when public inserting stitch 1 inserted within female stitch 2, expansion block 3 just is to expansion card groove 4.

Secondly, an expansion clamping groove 4 is formed in the cylindrical surface of the outer surface of the male pin 1, and an expansion block 3 is arranged in a groove in the cylindrical surface of the inner surface of the female pin 2; a groove is arranged on the cylindrical surface of the inner surface of the female pin foot 2, an expansion block 3 is arranged in the groove, the expansion block 3 is fixed on the inner surface of the female pin foot 2 in the forms of welding and the like, and the expansion block 3 and the body part of the female pin foot 2 are integrated into a whole; the corresponding expansion card slot 4 that sets up of outer surface cylindrical surface of public affairs plug pin 1, expansion card slot 4 is the sunken groove structure who sets up of public affairs plug pin 1 surface, and its position is relative with expansion block 3, and when public affairs plug pin 1 inserts within the female stitch 2, expansion block 3 is just to expansion card slot 4.

The two structures have the same design idea and principle, but have different expressions, and the difference is that the positions of the expansion block 3 and the expansion slot 4 are different.

The volumes of the male pin 1 and the female pin 2 are not obviously changed due to the power-on condition, but the expansion block 3 has the characteristic that the volume is changed along with the power-on condition, and the volume is increased after the expansion block 3 is powered on and protrudes from the outer surface of the male pin 1 or protrudes from the inner surface of the female pin 2, so that the expansion block is clamped into the expansion clamping groove 4; after power failure, the expansion block 3 retracts into the groove to restore the original shape.

Under the condition of no power supply, the expansion block 3 basically does not protrude out of the groove where the expansion block is located so as to facilitate plugging, after the male pin 1 is inserted into the female pin 2 to enable a circuit to be switched on, the expansion block 3 protrudes out of the groove where the expansion block is located due to the fact that the acting volume of current is increased to form a salient point, the salient point is clamped into the expansion clamping groove 4, the male pin 1 and the female pin 2 are kept clamped with each other under the condition of power supply, resistance of mutual separation of the male pin 1 and the female pin 2 is increased, accordingly loosening is effectively prevented, and the male pin 1 and the female pin 2 cannot deviate to reduce the contact area; besides, when the volume of the expansion block 3 is electrified and increased, the expansion block is in mutual contact with the concave part of the expansion clamping groove 4, the contact area between the male pin 1 and the female pin 2 is increased, and therefore the conductive capacity of the pins is improved to a certain extent.

On the basis of the scheme, the expansion block 3 is made of nickel-zinc alloy or piezoelectric ceramic. The nickel-zinc alloy generates heat after being electrified, and expands when heated, thereby increasing the volume. The piezoelectric ceramic is a functional ceramic material capable of mutually converting mechanical energy and electric energy, and belongs to an inorganic non-metallic material. The expansion block 3 is preferably made of nickel-zinc alloy to facilitate the shaping process.

For the first condition, the groove of the cylindrical surface on the outer surface of the male pin 1 is a spherical groove; for the second case, the groove on the inner cylindrical surface of the female pin 2 is a spherical groove. The expansion block 3 formed in the spherical groove is an ellipsoid under the condition of no electrification and is similar to a sphere after electrification.

Referring to fig. 1, the expansion blocks 3 in the present invention are uniformly distributed in a lattice shape, that is, the expansion blocks 3 are distributed at intervals in the circumferential direction to form a ring shape, and a plurality of rings are distributed at intervals in the axial direction to form a lattice shape staggered horizontally and vertically; correspondingly, the expansion clamping grooves 4 can adopt two structural forms, namely lattice-shaped or annular grooves, the expansion clamping grooves 4 adopt lattice-shaped structures, and each expansion clamping groove 4 corresponds to one expansion block 3; the expansion clamping grooves 4 are of annular groove structures, and a circle of expansion blocks 3 distributed along the circumferential direction correspond to one expansion clamping groove 4; these particular arrangements are intended to be included within the scope of the present invention.

Referring to fig. 1 and 2, the end of the male pin 1 and the end of the female pin 2 are respectively and fixedly connected with the embedded plate 5, the male pin 1 and the embedded plate 5 are fixed into a whole, the female pin 2 and the embedded plate 5 are fixed into a whole, and the area of the embedded plate 5 is respectively larger than the cross-sectional area of the male pin 1 and the cross-sectional area of the female pin 2; the male pin 1 is embedded and fixed in the shell matrix of the male plug through the embedding plate 5, and the female pin 2 is embedded and fixed in the shell matrix of the female plug through the embedding plate 5.

On the basis of any one of the technical schemes and the mutual combination thereof, the magnetic coil is spirally arranged around the inside of the body of the male pin 1, the magnetic coil and the male pin 1 are insulated from each other, the inner cavity of the male pin 1 is hollow, and the surfaces of the magnetic coil and the inner cavity of the male pin 1 are provided with insulating layers; the magnetic coil is connected to a power supply circuit of the male pin 1, specifically, the male pin 1 is installed in a male plug of a PCB board, two contacts are independently arranged on the PCB board, and two connectors of the magnetic coil are respectively connected with the two contacts.

The bottom surface of the inner cavity of the female pin 2 is provided with a magnetic block, and the magnetic block referred to herein can be a permanent magnet or an iron block; the electromagnetic field is produced when the magnetic coil of public affairs plug pin 1 circular telegram, and after public affairs plug pin 1 inserts female plug pin 2 circular telegram, the electromagnetic field that the magnetic coil produced produces magnetic force to magnetism piece, utilizes magnetic force to increase the firm degree of being connected between public affairs plug pin 1 and the female plug pin 2.

In addition to the above, the present invention provides another electromagnetic adsorption structure:

a magnetic coil is spirally arranged in the body of the female pin 2 in a surrounding manner, the magnetic coil is insulated from the female pin 2, and an insulating layer is arranged between the inner surface of the female pin 2 and the magnetic coil; magnetic force coil connects on female power supply circuit who inserts stitch 2, specifically, female stitch 2 is installed in female plug, and female plug connection has the cable, and two articulate that magnetic force coil draws are on a wire, and the public stitch 1 and female stitch 2 produce the electromagnetic field after pegging graft the circular telegram each other.

The outer end of the male pin 1 is provided with a magnetic absorption block, an electromagnetic field generated by the magnetic coil generates magnetic force on the magnetic absorption block, and the firm degree of connection between the male pin 1 and the female pin 2 is increased by utilizing the magnetic force.

Above-mentioned two kinds of modes that set up the electro-magnet are supplementary additionally to be increased the connecting force, inhale the piece by a magnetism of electro-magnet cooperation and produce magnetic force, can also set up two electro-magnets and adsorb each other simultaneously, and concrete structure is as follows:

a magnetic coil is spirally arranged around the inside of the body of the male pin 1, the magnetic coil and the male pin 1 are insulated from each other, and the magnetic coil is connected to a power supply loop of the male pin 1; meanwhile, a magnetic coil is spirally arranged inside the body of the female pin 2 in a surrounding manner, the magnetic coil and the female pin 2 are insulated from each other, and the magnetic coil is connected to a power supply loop of the female pin 2.

The magnetic poles generated after the magnetic coil on the male pin 1 and the magnetic coil on the female pin 2 are electrified are opposite, which is equivalent to forming two mutually independent electromagnets, and the magnetic poles are opposite after the electrification and mutually magnetically attract.

The magnetic coil arranged on the male pin 1 and/or the female pin 2 can be connected in series on a loop where the male pin 1 and/or the female pin 2 are powered on, or the magnetic coil can be independently used as a loop to supply power.

The invention also provides an anti-loosening electric connector which comprises the anti-loosening electric connecting pin; the anti-loosening electric connector comprises a male plug and a female plug, wherein the base of the male plug is provided with at least two male plug pins 1, the base of the female plug is provided with at least two female plug pins 2, and one of the two female plug pins is used as a ground wire. The anti-loosening electric connector can achieve the technical effects. Please refer to the prior art for other structures of the anti-loose electrical connector, and the description of the invention is omitted here.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.