CN115117665A

CN115117665A - DC connector

Info

Publication number: CN115117665A
Application number: CN202211036503.5A
Authority: CN
Inventors: 张�浩; 景美霞
Original assignee: Jiangsu Zerun New Material Co ltd
Current assignee: Jiangsu Zerun New Material Co ltd
Priority date: 2022-08-29
Filing date: 2022-08-29
Publication date: 2022-09-27

Abstract

The invention relates to the technical field of electrical elements, in particular to a DC connector which comprises a female head and a male head, wherein the female head is a wire end, the male head is a plate end, at least two groups of cables are arranged in the female head and the male head, the end part of the male head cable is riveted with a male terminal, the male terminal is inserted into one side of a male head main body, the end part of the female head cable is riveted with the female terminal, a sheath is sleeved outside the female terminal and is inserted into the female head main body through the sheath, a limiting cavity II is arranged in the inner cavity of the sheath, and the sheath of a protruding part is inserted into the other side of the male head main body. The invention integrates a plurality of single line ends into a group of line ends, thereby greatly increasing the plugging efficiency, and the interior of the invention is also provided with an error-proof structure, thereby not influencing other lines even if the terminal has errors and has problems, and the disassembly of the female terminal is very convenient.

Description

DC connector

Technical Field

The invention relates to the technical field of electrical components, in particular to a DC connector.

Background

Different from connector systems in other application scenarios, the voltage on the direct current side in the photovoltaic inverter system is usually as high as 600-1000V, and once the connector joint is loosened and has poor contact, the direct current arc discharge phenomenon is easily caused. The direct current arcing can cause the temperature of the contact part to rise sharply, and the continuous arcing can generate the high temperature of 1000-. Fusing fuses, cables and even burning out equipment can cause fires. Therefore, whether the direct current end can be reliably connected is very critical, and the problem of the interconnection of the inverter connectors needs to be considered when the DC connectors are used. If connectors of different models are matched with each other, poor contact or water leakage can be caused due to the problem of the compatibility of the different models, and potential safety hazards can be buried.

The inverter connecting connector on the market at present is connected with a row of single board end connectors, workers need to insert the board ends correspondingly one by one, errors can occur under the condition, the problems of repeated locking and disassembly exist, and the single DC space needs to be large.

Disclosure of Invention

In accordance with the above-described needs, there is provided a DC connector.

In order to achieve the purpose, at least two groups of cables are arranged in the female head and the male head, the ends of the cables are respectively riveted with the female terminal and the male terminal, the female head and the male head are tightly combined through the screwing-up group, a quick-release buckle is arranged in a cable hole of a main body of the female head, and the quick-release buckle is matched with the sheath.

Preferably, public first main part is inside to be provided with female terminal and to place the chamber and the chamber is placed to public terminal to female terminal places the chamber and places the chamber intercommunication with public terminal, and the intercommunication mouth is less than the accent that the chamber was placed to female terminal, public terminal is placed intracavity wall top-down and is set gradually awl wall one, is kept off wall, awl wall two and restriction chamber one.

Preferably, the male terminal is divided into an upper section and a lower section, the diameter of the lower section is larger than that of the upper section, a butting surface is arranged at the intersection of the upper section and the lower section, and a plurality of elastic pieces I which are opened in an equidistant surrounding mode are arranged on the wall surface of the lower section.

Preferably, the lower section of the male terminal is sleeved with a clamp spring I, the wall surface of the clamp spring I is provided with a second elastic sheet which is equidistantly surrounded and opened inwards, and the bottom of the clamp spring I is provided with a third elastic sheet which is circularly surrounded and opened outwards.

Preferably, the quick release buckle comprises a buckle block, a convex arc buckle tooth is arranged on the buckle block body, the inner side surface of the top of the buckle block is an inclined surface, and the buckle tooth is buckled with the buckle groove of the sheath when in insertion connection.

Preferably, the top surface of the female head main body is provided with a circle of steps, the female head main body is buckled with the connecting nut through the steps, and the lower end of the female head main body is connected with the locking nut.

Preferably, rise group soon and include the fixture block and connect the draw-in groove soon, the fixture block is provided with a plurality of groups equipartitions and connects the draw-in groove to set up in the outer wall of public first main part soon at the inner wall of coupling nut, and is relative with the fixture block position, and during the cooperation, the fixture block is along connecing the draw-in groove soon and removing until the tail end locking.

Preferably, be provided with sealed pad and sealed dog between female head main part and the lock nut, be provided with protruding passageway on the sealed pad, protruding passageway outer wall is the taper, be provided with the recess in the sealed dog, the recess is loudspeaker form, and protruding passageway is buckled mutually with the recess of sealed dog.

Preferably, the female terminal is divided into an upper section and a lower section, the diameter of the upper section is larger than that of the lower section, the upper section is provided with a beam-shaped part, the upper section is integrally hollow, the lower section is provided with a plurality of upper blocking platforms and lower blocking platforms surrounding the outer wall, a clamp spring II is sleeved between the upper blocking platforms and the lower blocking platforms, and a plurality of elastic pieces four surrounding the opening are arranged on the wall surface of the clamp spring II.

Preferably, a plurality of equidistant strip-shaped slotted holes are formed in the beam-shaped part, and the strips among the strip-shaped slotted holes are inwards bundled.

Has the advantages that: according to the DC connector, the integration rate of a single connector is increased, and the plugging times and the error rate of workers are reduced; the terminal is inserted wrongly and then is pulled to be correspondingly buckled and disassembled, so that the terminal is convenient and quick, and the terminal is provided with the protective sleeve, so that other terminals cannot be affected after a single terminal goes wrong; the female head and the male head are tightly connected through the connecting nut, and water and gas can be prevented.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic diagram of the connection of the male and female connectors of the present invention.

FIG. 2 is a schematic diagram of the male portion of the present invention.

FIG. 3 is an enlarged view of part A of the present invention.

Fig. 4 is a cross-sectional view of the male body of the present invention.

FIG. 5 is a schematic view of the female connector of the present invention.

FIG. 6 is an enlarged view of the part B of the present invention.

Fig. 7 is a cross-sectional view of a sheath of the present invention.

Fig. 8 shows a buckling sheath structure according to the present invention.

In the figure: 1 is a female head; 2 is a male head; 3 is a male head main body; 4 is a male terminal; 5 is a clamp spring I; 6 is a male cable; 7 is a rotary connecting clamping groove; 8 is a butting face; 9 is a spring plate I; 10 is a second elastic sheet; 11 is a third elastic sheet; 12 is a female terminal placing cavity; 13 is a male terminal placing cavity; 14 is a conical wall I; 15 is a retaining wall; 16 is a conical wall II; 17 is a first limiting cavity; 19 is a connecting nut; 20 is a fixture block; 21 is a female head main body; 22 is a sheath; 23 is a female cable; 24 is a sealing gasket; 25 is a sealing gasket stop block; 26 is a lock nut; 27 is a female terminal; 28 is a beam-shaped part; 29 is a clamp spring II; 30 is a top baffle table; 31 is spring plate four; 32 is a lower baffle platform; 33 is a restriction cavity II; 34 is a buckle groove; 35 is a button tooth; 36 is a buckle block; 37 is a bevel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of the present invention.

The male part will be explained first.

As shown in fig. 2-4, the male body 3 is a main body of the male body 2, two ends of the male body 3 are respectively provided with four female terminal placing cavities 12 and four male terminal placing cavities 13, the female terminal placing cavities 12 are communicated with the male terminal placing cavities 13, and the diameters of the male terminal placing cavities 13 are sequentially increased from top to bottom.

Before the male terminal placing cavity 13 is plugged into the male terminal cable 6, the male terminal 4 is riveted at the end part of the male terminal cable 6, the snap spring I5 is clamped into the male terminal placing cavity 13, the outward-opened elastic sheet III 11 is positioned in the limiting cavity I17 and abuts against the side wall, the male terminal 4 can penetrate through the snap spring I5 after entering the male terminal placing cavity 13 for a distance during insertion, the male terminal 4 quickly reaches a set position through the guidance of the conical wall I14 when reaching a preset position, and at the moment, the outward-opened elastic sheet I9 on the male terminal 4 abuts against the inward-opened elastic sheet II 10 on the snap spring I5, so that the male terminal 4 is stable in the cavity.

The outer wall of the end, where the cavity 13 is located, of the male terminal is provided with an external thread, the male head cable 6 is screwed by a locking nut after being placed, and a sealing gasket 24 and a sealing gasket stop block 25 in the nut are further pressed and fixed due to the locking of the nut in the screwing process.

Next, the female connector will be explained.

As shown in fig. 5 to 8, the female body 21 is a body member of the female 1, and the female body 21 is put into and abutted against from the inside of the coupling nut 19 so that the female body 21 does not pass through the coupling nut 19; the female head main body 21 is internally provided with four through holes, after the end part of the female head cable 23 is riveted with the female terminal 27, the outer part of the riveted female terminal 27 is sleeved with the sheath 22, the female terminal 27 sleeved with the sheath 22 is penetrated and connected with the through holes, in order to ensure that the sheath 22 can be stably fixed, the inner part of the female head cable is provided with a second limiting cavity 33, before the female terminal 27 penetrates into the sheath 22, the second snap spring 29 is firstly plugged into the sheath 22, so that the fourth elastic sheet 31 of the second snap spring 29 is pressed against the inner wall of the second limiting cavity 33, after the second snap spring 29 is plugged into the sheath 22, the upper baffle table 30 and the lower baffle table 32 penetrating into the female terminal 27 respectively abut against the upper side wall and the lower side wall of the second snap spring 29.

The female cable 23 with the sheath 22 passes through the female body 21 until the buckle teeth 35 on the side buckle block 36 of the through hole of the female body 21 are buckled in the buckle groove 34 of the sheath 22, so that the sheath 22 is integrally stable.

In order to facilitate the detachment of the female cable 23, the upper part of the buckle tooth 35 is set to be an inclined surface, and an operator only needs to insert a straight screwdriver from the inclined surface and slightly poke the straight screwdriver to draw out the cable during detachment.

The female cable 23 is further sleeved with a gasket 24 and a gasket stopper 25 between the cables for sealing and waterproofing, and the gasket 24 and the gasket stopper 25 are tightly combined with the female cable 23 by pressing when the lock nut 26 is screwed to the female body 21.

Next, the male and female connectors will be described.

As shown in fig. 1, fig. 2 and fig. 5, when the female head 1 and the male head 2 are butted, the female terminal 27 wraps the male terminal 4, the beam-shaped portion 28 on the female terminal 27 further shrinks to clasp the male terminal 4, and the external connection portion is screwed and matched with the screwing clamping groove 7 of the male head body 3 of the male head 2 through the clamping block 20 on the connecting nut 19 of the female head 1 to tightly connect the two ends.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the present invention, and all designs identical or similar to the present invention are within the scope of the present invention.

Claims

1. A DC connector comprising a female head (1) and a male head (2), characterized in that: female head (1) and male head (2) are inside to have two sets of cables at least to the cable tip rivets female terminal (27) and male terminal (4) respectively, and female head (1) and male head (2) are through rising the group completion of soon and closely combine, and female head main part (21) cable hole of female head (1) is provided with fast shackle, fast shackle and sheath (22) are mutually supported.

2. A DC connector according to claim 1, wherein: public first main part (3) in public head (2) is inside to be provided with female terminal and to place chamber (12) and public terminal and place chamber (13) to female terminal places chamber (12) and public terminal and places chamber (13) intercommunication, and the intercommunication mouth is less than the chamber mouth that female terminal placed chamber (12), public terminal places chamber (13) inner wall top-down and has set gradually awl wall (14), fender wall (15), awl wall two (16) and restriction chamber (17).

3. A DC connector according to claim 1, wherein: the male terminal (4) is divided into an upper section and a lower section, the diameter of the lower section is larger than that of the upper section, a butting surface (8) is arranged at the intersection of the upper section and the lower section, and a plurality of elastic pieces I (9) which are opened in an encircling mode at equal intervals are arranged on the wall surface of the lower section.

4. A DC connector according to claim 3, wherein: the lower section of the male terminal (4) is sleeved with a clamp spring I (5), the wall surface of the clamp spring I (5) is provided with a spring plate II (10) which is equidistantly surrounded and opened inwards, and the bottom of the clamp spring I (5) is provided with a ring of spring plate III (11) which is surrounded and opened outwards.

5. A DC connector according to claim 1, wherein: the quick release buckle comprises a buckle block (36), wherein a convex arc-shaped buckle tooth (35) is arranged on a block body of the buckle block (36), the inner side surface of the top of the buckle block (36) is an inclined surface (37), and the buckle tooth (35) is buckled with a buckle groove (34) of the sheath (22) during plugging.

6. A DC connector as claimed in claim 5, wherein: the top surface of the female head main body (21) is provided with a circle of steps, the female head main body is buckled with the connecting nut (19) through the steps, and the lower end of the female head main body (21) is connected with the locking nut (26).

7. A DC connector according to claim 1, wherein: it includes fixture block (20) and connects draw-in groove (7) soon to rise the group soon, fixture block (20) are provided with a plurality of groups equipartition and are connecting nut's (19) inner wall, connect draw-in groove (7) to set up in the outer wall of public head main part (3) soon to relative with fixture block (20) position, during the cooperation, fixture block (20) move until to the tail end locking along connecting draw-in groove (7) soon.

8. A DC connector as claimed in claim 6, wherein: be provided with sealed pad (24) and sealed dog (25) between female head main part (21) and lock nut (26), be provided with protruding passageway on sealed pad (24), protruding passageway outer wall is the taper, be provided with the recess in sealed dog (25), the recess is loudspeaker form, and protruding passageway is buckled mutually with the recess of sealed dog (25).

9. A DC connector according to claim 1, wherein: female terminal (27) divide into the upper and lower sections, and the upper segment diameter is greater than the lower section diameter, is located upper segment department and is provided with beam type portion (28) and the upper segment is whole to be cavity, and lower section department is provided with a plurality of upper fender platforms (30) and lower fender platform (32) that encircle the outer wall, and is located to overlap between fender platform (30) and the lower fender platform (32) and has jump ring two (29), be provided with a plurality of four (31) around open shell fragments on the wall of jump ring two (29).

10. A DC connector according to claim 9, wherein: a plurality of equidistant strip-shaped slotted holes are formed in the binding part (28), and strips among the strip-shaped slotted holes are all bound inwards.