CN217882803U

CN217882803U - Direct-insertion type integrated bending elastic piece shielding connector

Info

Publication number: CN217882803U
Application number: CN202221835467.4U
Authority: CN
Inventors: 徐威坤
Original assignee: Shanghai Weyer Electric Appliances Co ltd
Current assignee: Shanghai Weyer Electric Appliances Co ltd
Priority date: 2022-07-14
Filing date: 2022-07-14
Publication date: 2022-11-22
Anticipated expiration: 2032-07-14

Abstract

The utility model discloses a cut straightly type integral type shell fragment shielded joint of bending belongs to shielded joint technical field. To the higher problem of shielded joint cost, the utility model discloses a be the metal joint body of cyclic annular setting, sealed core and metal circle nut, the inside of the metal joint body is provided with a plurality of shielding shell fragments, a plurality of shielding shell fragments are cyclic annular setting, the shielding shell fragment is including the contact site and the both sides alar part of bending type one-tenth, both sides alar part is located the both sides of contact site respectively along the axial of the metal joint body, the contact site is parallel with the metal joint internal wall, flank portion slope is towards the metal joint internal wall and connect contact site and metal joint body. The contact between the shielding elastic sheet and the cable shielding layer is more stable through the shielding elastic sheet with a certain width, and the manufacturing and installation cost is low; and the contact part and the wing parts on the two sides are formed by bending, so that the shielding elastic sheet is integrally bent in a wrapping manner, and the cable is prevented from being clamped or damaged due to the adjustment of withdrawing the cable.

Description

Direct-insertion type integrated bending elastic piece shielding connector

Technical Field

The utility model relates to a shielded joint technical field especially relates to a shell fragment shielded joint of bending of cut straightly type integral type.

Background

The shield joint is roughly divided into a metal type and a metal plastic mixed type according to material. The function of the shield joint is to lock and fix the cable and achieve the effects of sealing and shielding.

The structure of the shielded connector basically comprises three main types, namely a shell, a sealing piece and a shielding piece. The shell is mainly divided into two types, one is a connector body which is provided with mounting threads and is mainly used for being mounted at the position of a corresponding thread mounting hole of the case, and the other is a round nut which is mainly used for connecting the connector body and extruding a sealing element so as to achieve the effects of locking the cable and preventing water; the sealing elements are also divided into two types, one is a sealing core body pressed by a round nut to lock the cable, the other is a sealing ring between the connector body and the box body, and the sealing elements enable the cable and the penetrating hole to be completely sealed, so that the working space of the equipment can be isolated from the external environment, and the protection effects of water resistance, dust resistance and the like are achieved; the shielding part is used for conducting the cable shielding layer and the connector body, and simultaneously, the connector body is conducted with the case and then is transmitted to the ground through grounding, so that an electromagnetic field generated when high-voltage current passes is completely shielded, and the internal components are prevented from being damaged by the strong electromagnetic field.

In the existing common shielded connector, because the design of a shielding mechanism is complex, the connector needs to be disassembled and disassembled frequently during installation, the manufacturing cost is high, the labor cost for installation and use is high, the complexity of installation and use needs to be considered frequently at a user side, and the training cost and the fault-tolerant cost are increased; secondly, the applicable cable range of the shielding of the existing common shielding joint shielding structure is small, or the application range is large but causes great trouble to the installation and use of customers, and the cable shielding layer is damaged or the contact failure causes the phenomena of short circuit, fire and the like due to improper installation.

The prior art is also improved correspondingly to the problems, for example, the Chinese patent application with the publication number of CN214900119U, which is published as 2021-11-26, discloses a nylon triangular spring shielding waterproof joint, which comprises a joint main body, a locking nut and a sealing core body; the sealing core body, the locking nut and the joint main body are all arranged in a ring shape and used for accommodating the through of a cable; the joint main body comprises a metal piece for fixing the box body and a plastic piece matched with the lock nut; the metal piece is tightly connected with the plastic piece, and a fixed convex ring is arranged on the surface of the metal piece connected with the plastic piece; the inner wall of the metal piece is provided with a limiting clamp groove, and a shielding assembly is arranged in the limiting clamp groove in the circumferential direction. Through metalwork centre gripping shielding component and be fixed in the cavity, have the effectual fixed stable advantage of shielding, the metalwork closely meets with the working of plastics simultaneously has the advantage that can effective control cost, guarantee intensity. The scheme has the following defects: the shielding part assembly is complex in arrangement, the installation needs to be particularly noticed to avoid the shielding part assembly to fall off, the manufacturing cost is high, the matching structure of the sealing core body and the joint main body is complex, the size of the joint main body is large, and the manufacturing cost is further increased.

Therefore, in view of the above problems, it is necessary to propose a further solution to solve at least one of the problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the higher problem of relevant shielded joint cost, the utility model provides an it bends shell fragment shielded joint to cut straightly type integral type. The technical scheme is as follows:

the utility model provides a shell fragment shielded joint bends of cut-through type integral type, is including the metal joint body, sealed core and the metal circle nut that are cyclic annular setting, the inside of metal joint body is provided with a plurality of shielding shell fragments, and is a plurality of shielding shell fragment is cyclic annular setting, shielding shell fragment is including the contact site and the both sides alar part that buckle formation, two the flank part is followed the axial of metal joint body is located respectively the both sides of contact site, the contact site with the internal wall of metal joint is parallel, flank part slope orientation the internal wall of metal joint connects the contact site with the metal joint body.

In a preferred embodiment of the present invention, the inner wall of the metal joint body is provided with a metal ring piece, and the free ends of the two side wing parts are connected with the metal ring piece.

In a preferred embodiment of the present invention, the number of the shielding elastic pieces is 6, and the shielding elastic pieces are arranged in a one-to-one correspondence with the ring surface of the hexagonal ring of the cable shielding layer.

In a preferred embodiment of the present invention, the metal round nut includes a guide surface located above the seal core body, the guide surface is used for extruding the top surface of the seal core body, and the guide surface is disposed facing the inner slope of the metal joint body.

In a preferred embodiment of the present invention, the outer ring of the seal core body is in a step-like arrangement.

In a preferred embodiment of the present invention, the outer wall of the metal joint body is surrounded by an outer boss, a sealing groove is provided below the outer boss, and a sealing ring is provided in the sealing groove.

In a preferred embodiment of the present invention, the shielding elastic piece and the metal ring piece are integrally formed.

In a preferred embodiment of the present invention, the guiding surface is a circular arc surface.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) The utility model has the advantages that the contact between the shielding elastic sheet and the cable shielding layer is more stable through the shielding elastic sheet with a certain width, and the manufacturing and installation cost is low; the shielding elastic sheet is integrally bent in a wrapping manner through the contact part and the wing parts on the two sides, so that the cable is prevented from being clamped or damaged due to the adjustment of the withdrawing line; further set up the becket piece at the inner wall of metal joint body, the shielding shell fragment passes through becket piece and metal joint body coupling, has both reduced installation and preparation complexity, and then reduce cost, has improved the stability that the shielding shell fragment is connected again to improve the stability of cable shielding layer, shielding shell fragment and metal joint body coupling, ensured the shielding effect.

(2) The utility model discloses a set up the spigot surface on the metal circle nut, make through comparatively simple structure along with screwing of metal circle nut, the extrusion seal core body extrudees fixedly along the incline direction of spigot surface to the cable, and the seal core body deforms the clamp cable gradually, increase the locking force too fast when preventing the deformation of seal core body, thereby easy to assemble, and protection cable and shield joint, while simple structure, required space is less, make the whole size less, the cost is further reduced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Specifically, 1, a seal ring; 2. a metal fitting body; 3. a shielding elastic sheet; 31. a contact portion; 32. a flank section; 33. a metal ring sheet; 4. sealing the core body; 5. a metal round nut; 51. a guide surface.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the scope of the invention. In the description of the invention, unless otherwise specified, "a plurality" means two or more.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Example 1:

as shown in fig. 1, a straight-insertion type integrated bent elastic sheet shielding connector comprises a metal connector body 2, a sealing core body 4 and a metal round nut 5 which are annularly arranged, namely, the three are annularly arranged, so that a cable can be straightly inserted into the shielding connector. The shielded joint is particularly suitable for the fields of new energy automobiles, rail transit, railways, shipping, aviation, electric power, hoisting machinery and the like which need to protect cables and realize electromagnetic shielding.

The inside of metal joint body 2 is provided with a plurality of shielding shell fragments 3, and a plurality of shielding shell fragments 3 are cyclic annular setting, indicate a plurality of shielding shell fragments 3 around a circumference setting to wholly form cyclic annularly, in order to enclose to establish in cable week upwards, adjacent shielding shell fragment 3 can be the interval setting. It can be understood that, because the shielding elastic sheet 3 is a sheet, it has a certain width, and compared with the triangular spring in CN214900119U, its contact area with the cable shielding layer is larger, and the contact is more stable, and when impact or vibration occurs at the same time, the shielding elastic sheet 3 is also not easy to separate from the cable shielding layer, and the shielding effect is continuously stable.

The shielding elastic sheet 3 includes a contact portion 31 and two side wing portions 32 formed by bending, the two side wing portions 32 are respectively located at two sides of the contact portion 31 along the axial direction of the metal connector body 2, that is, the shielding elastic sheet 3 is formed by bending two ends of one elastic sheet to form two side wing portions 32 and the contact portion 31 located in the middle. Contact site 31 is parallel with the 2 inner walls of metal joint body, and be used for extrusion contact cable shielding layer, flank portion 32 slopes towards the 2 inner walls of metal joint body and connects contact site 31 and metal joint body 2, this moment, the contained angle of contact site 31 and flank portion 32 is the obtuse angle, it is similar to the trapezium structure to shield 3 integral types of shell fragment and bend formation promptly, wholly be the parcel formula structure towards the 2 inner walls of metal joint body simultaneously, thereby avoid the cable to block or draw the damage because of the adjustment of moving back the line, improve the convenient degree of cable cut-in installation.

When the shielding elastic sheet 3 is bent, the bent part can be of an arc-shaped structure, so that the shielding elastic sheet 3 is prevented from being broken, and the service life of the shielding connector is prolonged. Meanwhile, the free ends of the two side wing parts 32 are oppositely and arcuately bent and then connected with the inner wall of the metal connector body 2, so that the fracture of the joint of the shielding elastic sheet 3 and the metal connector body 2 is avoided, and the service life of the shielding connector is further prolonged.

The inner wall of the metal connector body 2 may be surrounded by a metal ring 33, the metal ring 33 is tightly attached to the inner wall of the metal connector body 2, and the two may be further fixed by welding, snapping, etc. The free ends of the wing parts 32 on the two sides are connected with the metal ring piece 33, so that the connection stability of the shielding elastic piece 3 is improved, the contact stability of a cable shielding layer, the shielding elastic piece 3 and the metal connector body 2 is improved, and the shielding effect is ensured. Further, shielding shell fragment 3 and becket piece 33 are integrated into one piece, further improve the stability that both connect, and furtherly again, shielding shell fragment 3 and becket piece 33's linking department is the arc structure to avoid shielding shell fragment 3 and becket piece 33's linking department fracture, further prolong shielding joint's life.

Typically, the cable shield is provided with a hexagonal ring. The number of the shielding elastic pieces 3 can be 6, and the shielding elastic pieces are arranged in one-to-one correspondence with the ring surfaces of the hexagonal rings of the cable shielding layers, so that the shielding effect is ensured while the cost is reduced.

The outer wall of the metal joint body 2 is annularly provided with an outer boss which can be used as a wrench stress position for the threaded connection of the metal joint body 2 and the box body hole. Meanwhile, a sealing groove can be formed below the outer boss, and a sealing ring 1, such as an O-shaped rubber sealing ring 1, is arranged in the sealing groove, so that the threaded connection between the metal joint body 2 and the box body hole is sealed, the working space of the equipment is isolated from the external environment, and the waterproof and dustproof effects are achieved.

Example 2:

on the basis of embodiment 1, in this embodiment, the metal round nut 5 further includes a guide surface 51 located above the seal core 4, the guide surface 51 is used for pressing the top surface of the seal core 4, and the guide surface 51 is disposed obliquely toward the inside of the metal joint body 2. Along with the tight of metal round nut 5 and metal joint body 2, metal round nut 5 extrudes sealed core 4 and extrudes fixedly along the incline direction of spigot surface 51 to the cable, and sealed core 4 deforms gradually and presss from both sides tight cable, increases the locking force too fast when preventing sealed core 4 deformation, thereby easy to assemble, and protection cable and shield joint. The guide surface 51 is preferably a circular arc surface to further slow down the deformation and achieve a gradual increase in the locking force.

The outer ring surface of the sealing core body 4 is arranged in a step shape, so that the sealing core body 4 can be arranged on the upper end surface of the metal joint body 2 through a step structure, the sealing core body 4 is screwed with the metal joint body 2 through threads, the inner part of the metal round screw cap 5 is protruded, namely a part with a guide surface 51 is formed, the sealing core body 4 is pressed to deform and bear force, so that the sealing core body 4 receives a horizontal circle center and a vertical downward component force, and the vertical downward component force is transmitted to the upper end surface of the metal joint body 2 for step support offset; the horizontal component force towards the center of the circle enables the sealing core body 4 to contract inwards to press the cable tightly so as to achieve the effects of water prevention and cable fixing.

The size of the conventional seal core body 4 is about 18mm, and the size of the seal core body 4 in the shielded joint is shorter than that of the conventional seal core body 4, for example, the size can be 13mm, but the wire locking range is not reduced, so that the size of the shielded joint is greatly reduced, and the cost of the shielded joint is further reduced. As mentioned in the previous paragraph, the sealing core 4 is screwed and pressed down by the metal round screw cap 5, so that the upper half of the sealing core 4 is pressed to the outside of the cable, and a waterproof and dustproof effect is generated, therefore, under the condition that the size of the upper half of the sealing core 4 is not changed, the size of the lower half is cut short, and the waterproof and dustproof performance of the whole joint is not affected.

For the shielded connector in embodiment 1 or embodiment 2, when the shielded connector is installed, firstly, the metal connector body 2 is installed at a position corresponding to a threaded installation hole of a chassis, the metal connector body 2 is screwed by a wrench for fixing, the sealing ring 1 is in contact with the surface of the chassis, and the sealing ring 1 deforms under the pressure force of the end face of the metal connector body 2, so that the sealing performance is realized; then, the cable is directly penetrated into the metal connector body 2, the position of a shielding layer of the cable is tightly contacted with the shielding elastic sheet 3 through the deformation of the shielding elastic sheet 3, the shielding elastic sheet 3 is tightly contacted with the metal connector body 2, and the metal connector body 2 is tightly contacted with the thread of the case, so that the conduction and grounding shielding are realized; finally, the metal round nut 5 is screwed by a wrench, the metal round nut 5 is compressed and the sealing core body 4 is deformed, compressed and tightly attached to the cable sheath, so that the cable is fixed to have certain drawing force, and the sealing performance is kept.

In summary, the shielding elastic sheet with a certain width of the utility model enables the contact between the shielding elastic sheet and the cable shielding layer to be more stable; the shielding elastic sheet is integrally bent in a wrapping manner through the contact part and the wing parts on the two sides, so that the cable is prevented from being clamped or damaged due to the adjustment of the withdrawing line; further, the metal ring sheet is arranged on the inner wall of the metal connector body, and the shielding elastic sheet is connected with the metal connector body through the metal ring sheet, so that the connection stability of the shielding elastic sheet is improved, the contact stability of a cable shielding layer, the shielding elastic sheet and the metal connector body is improved, and the shielding effect is ensured.

Moreover, it is to be understood that the described embodiments are merely exemplary of the invention, and are not intended as limiting the scope of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Claims

1. The utility model provides a shell fragment shielded joint bends of cut-through type integral type, is including the metal joint body, sealed core and the metal round nut that are cyclic annular setting, its characterized in that, the inside of metal joint body is provided with a plurality of shielding shell fragments, and is a plurality of shielding shell fragment is cyclic annular setting, the shielding shell fragment is including the contact site and the both sides alar part of bending type formation, two flank part is followed the axial of metal joint body is located respectively the both sides of contact site, the contact site with the internal wall of metal joint is parallel, flank part slope orientation the internal wall of metal joint connects the contact site with the metal joint body.

2. The in-line integral bent spring plate shielded connector as claimed in claim 1, wherein the inner wall of the metal connector body is annularly provided with a metal ring piece, and the free ends of the two side wing parts are connected with the metal ring piece.

3. The straight-insertion type integrated bent elastic sheet shielding joint as claimed in claim 1 or 2, wherein the number of the shielding elastic sheets is 6, and the shielding elastic sheets are arranged in one-to-one correspondence with the ring surfaces of the hexagonal rings of the cable shielding layers.

4. The in-line integral bent shrapnel shielded connector as recited in claim 1 or 2, wherein the metal round nut comprises a guiding surface located above the sealing core, the guiding surface is used for pressing the top surface of the sealing core, and the guiding surface is disposed obliquely towards the inside of the metal connector body.

5. The in-line integral bent clip shielded connector of claim 4, wherein the outer annular surface of the seal core is stepped.

6. The straight-insertion type integrated bent elastic sheet shielding connector as claimed in claim 1, wherein an outer boss is annularly arranged on an outer wall of the metal connector body, a sealing groove is arranged below the outer boss, and a sealing ring is arranged in the sealing groove.

7. The in-line integral bent spring plate shielded connector as claimed in claim 2, wherein the shield spring plate and the metal ring plate are integrally formed.

8. The in-line integral bent spring plate shielded connector of claim 5, wherein the guide surface is a circular arc surface.