CN116191129A

CN116191129A - Energy storage connector

Info

Publication number: CN116191129A
Application number: CN202310296540.8A
Authority: CN
Inventors: 徐浙帅; 刘利超
Original assignee: Dongguan Jinling Electronics Co ltd
Current assignee: Dongguan Jinling Electronics Co ltd
Priority date: 2023-03-23
Filing date: 2023-03-23
Publication date: 2023-05-30

Abstract

The invention discloses an energy storage connector, which comprises a connector plug and a connector socket which are in plug fit, wherein a plug groove is formed in the connector plug along the plug direction, the connector socket comprises a socket shell inserted into the plug groove, and a locking mechanism which is arranged in the connector plug and locks the socket shell; a locking cavity communicated with the inserting groove is formed in the connector plug, at least one end of the locking cavity is open, the locking mechanism comprises a sliding locking block and a torsion spring assembled on the sliding locking block or in the locking cavity, the sliding locking block comprises a locking part which at least partially enters the inserting groove and a clamping hook part which is self-locked after the sliding locking block is inserted into the locking cavity, and two ends of the torsion spring are respectively interfered with the sliding locking block and the locking cavity to provide elastic force for the sliding locking block; the locking mechanism is integrally arranged, can synchronously move in the locking cavity, and further realizes quick plugging and unplugging of the connector and stable connection.

Description

Energy storage connector

Technical Field

The present disclosure relates to electrical connectors, and particularly to an energy storage connector.

Background

The energy storage connector is generally used as a connecting component between the energy storage device and the electric equipment, so that the transmission of large current between the energy storage device and the electric equipment is realized, and the existing energy storage connector mainly comprises a connector plug and a connector socket which are connected in a plug-in fit manner, wherein the connector plug is connected with a cable, and the connector socket is connected with the electric equipment or other equipment. At present, the connector plug and the connector socket are usually clamped and fixed by a clamping piece when in plug-in fit, so that the connector plug and the connector socket are prevented from being displaced or even accidentally falling off due to the influence of external force, and the connection stability of the connector plug and the connector socket is further influenced.

The existing buckle piece generally comprises a connecting rod, a button, a spring sleeved outside the connecting rod and a locking piece capable of locking a connector socket along with synchronous movement of the connecting rod, wherein the locking and unlocking are realized through the connecting rod compression spring, and because the locking piece, the connecting rod and the button are arranged in a split mode, synchronous movement among the locking piece, the connecting rod and the button is realized by virtue of the spring, but the spring is easy to yield failure after long-term use, so that the locking piece, the connection and the button cannot be linked, and the connector plug cannot be normally plugged and pulled, so that the connection stability of the connector is affected.

Disclosure of Invention

Therefore, the present invention is directed to an energy storage connector, which solves the problem that the locking structure provided separately in the prior art cannot be plugged and pulled out normally after the spring fails.

In order to achieve the above-mentioned purpose, the present invention provides an energy storage connector, which comprises a connector plug and a connector socket which are in plug-in fit, wherein a plug-in groove is arranged in the connector plug along the plug-in direction, the connector socket comprises a socket shell inserted into the plug-in groove, and the energy storage connector further comprises a locking mechanism which is arranged in the connector plug and locks the socket shell; the connector plug is internally provided with a locking cavity communicated with the inserting groove, at least one end of the locking cavity is open, the locking mechanism comprises a sliding locking block and a torsion spring assembled on the sliding locking block or in the locking cavity, the sliding locking block comprises a locking part at least partially entering the inserting groove and a clamping hook part which is self-locking after the sliding locking block is inserted into the locking cavity, and two ends of the torsion spring interfere with the sliding locking block and the locking cavity respectively to provide elastic force for the sliding locking block.

Further, a locking ring in locking fit with the locking part is outwards convexly arranged on the outer peripheral surface of the socket shell and at one end corresponding to the inserting groove, and the locking ring is provided with a supporting inclined surface facing the inserting groove; one side of the locking part corresponding to the abutting inclined plane is provided with an abutted inclined plane which can be in contact with the abutting inclined plane, and the abutting inclined plane abuts against the abutted inclined plane and pushes the abutted inclined plane to enable the locking part to withdraw from the inserting groove when the connector plug and the connector socket are inserted.

Further, the locking cavity comprises a first sliding cavity communicated with the inserting groove and a second sliding cavity formed beside the first sliding cavity and communicated with the first sliding cavity, the locking part is arranged in the first sliding cavity in a sliding manner, the clamping hook part is arranged in the second sliding cavity in a sliding manner, and a position, corresponding to the clamping hook part, in the second sliding cavity is provided with a stop lug locked with the clamping hook part; the locking mechanism further comprises a button which is integrally formed with the sliding locking piece and is exposed out of the opening end of the locking cavity.

Further, the sliding lock block further comprises a stop part which is arranged in the second sliding cavity in a sliding manner and is integrally formed with the locking part and the clamping hook part; the anti-static part is internally integrally provided with a support shaft with an axis perpendicular to the sliding direction of the anti-static part and an installation ring groove concavely arranged on the periphery of the support shaft, the anti-static part is also provided with a containing groove which is arranged along the tangential direction of the installation ring groove and communicated with the installation ring groove and a notch which is independent of the containing groove and communicated with the installation ring groove and the second sliding cavity, the torsion spring is contained in the installation ring groove and sleeved outside the support shaft, one end of the torsion spring extends into the containing groove and is abutted or fixed with the corresponding position of the containing groove, and the other end of the torsion spring extends into the second sliding cavity through the notch and is abutted or fixed with the corresponding position of the second sliding cavity.

Further, the connector plug comprises a plug housing, a plug-in portion arranged in the plug housing along a plug-in direction, and a cable connecting portion arranged in the plug housing and electrically connected with the plug-in portion, wherein the plug-in portion is elastically contacted with the connector socket;

the plug shell comprises an insulating inner shell, an insulating outer shell and an insulating body, wherein the insulating inner shell is sleeved outside the plug part in a ring mode, the insulating outer shell is coaxially arranged outside the insulating inner shell and is integrally formed with the insulating inner shell, the insulating body at least partially covers the cable connecting part and is integrally formed with the insulating inner shell and/or the insulating outer shell, and the outer peripheral surface of the insulating inner shell is opposite to the inner peripheral surface of the insulating outer shell at intervals to form the plug groove;

the cable connector is characterized in that an inserting cavity is formed in the insulating inner shell and is at least open at one axial end, the inserting part is fixed in the inserting cavity, a connecting cavity which is communicated with the inserting cavity and is arranged at an included angle with the axis of the inserting cavity is formed in the insulating body, and the cable connecting part is coated in the connecting cavity.

Further, the plugging part comprises a terminal seat coaxially arranged in the plugging cavity and axially provided with a cavity, a conductive terminal coaxially arranged in the cavity and a fixing piece for fixing the conductive terminal along the plugging direction;

one side of mounting orientation terminal seat and conductive terminal is formed with a constant head tank, terminal seat and conductive terminal's corresponding end are located jointly in the constant head tank, conductive terminal keeps away from the one end limit of mounting is located the inner peripheral surface of terminal seat, the terminal seat is kept away from the one end of mounting wears to establish on the cable connecting portion and fix with cable connecting portion riveting.

Further, the connector socket further comprises a pin inserted into the socket shell along the insertion direction and elastically contacted with the insertion part; the contact pin comprises a butt joint part which is spliced into the splicing part, a buckling part which is integrally formed by extending from one end of the butt joint part far away from the connector plug, and a mounting part which is integrally formed by extending from one end of the buckling part far away from the butt joint part to the outside of the socket shell, wherein the buckling part is buckled on the inner wall of the socket shell.

Further, the buckling part comprises a cone section integrally formed on the abutting part and a backstop section integrally protruding outwards and arranged between the abutting part and the cone section, and the diameter of the cone section gradually increases from the joint of the cone section and the backstop section to a direction away from the backstop section.

Further, a step surface facing the connector plug is integrally and inwards convexly arranged at a position of the socket shell corresponding to the buckling part, and a buckling part buckled with the buckling part is integrally formed at the inner edge of the step surface;

the buckle part comprises a plurality of elastic retaining pieces distributed along the circumferential direction, the inner wall of each elastic retaining piece is attached to the outer wall of the cone section, and the end part of each elastic retaining piece is propped against the end face of the retaining section towards one side of the cone section.

Further, a through hole communicated with the plug cavity is formed at one end of the plug part corresponding to the cable connecting part;

the plug shell further comprises an insulating guide post which is integrally formed on the inner wall surface of the insulating body, penetrates through the through hole and extends into the plug cavity, the insulating guide post and the plug cavity are coaxially arranged, and a guide groove for the insulating guide post to be inserted in the plug direction is formed in the position, corresponding to the insulating guide post, in the plug pin.

According to the invention, the integrated sliding locking block and the button are arranged in the connector plug, so that in the process of locking and unlocking the connector plug and the connector socket, the force acting on the button can be directly transmitted to the locking part, the stopping part and the clamping hook part, and the locking part, the stopping part and the clamping hook part synchronously slide in the corresponding sliding cavity, and even if the spring fails, the connector plug and the connector socket can be unlocked through the button and then the connector plug is pulled out, so that the safety and the stability of connection are improved. In addition, the torsion spring is adopted to provide power for resetting the sliding locking block and the button, the torsion spring is positioned in the sliding locking block, the utilization rate of the internal space of the connector plug is high, and tangential force is applied to the torsion spring by the sliding locking block and the button when the sliding locking block and the button move so as to enable the torsion spring to obtain resilience force, and the travel of the torsion spring when the torsion spring stretches out and draws back is not required to be reserved in the locking cavity, so that the overall size of the connector plug is reduced, and the design cost and the manufacturing cost of the whole connector are reduced.

Drawings

Fig. 1 is a schematic structural diagram of an energy storage connector according to the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a view from A-A of fig. 1.

Fig. 4 is a schematic structural view of the plugging portion.

Fig. 5 is an exploded view of the plug.

Fig. 6 is an exploded view of the cable connection.

Fig. 7 is a right side view of the connector receptacle in the view orientation shown in fig. 2.

Fig. 8 is a view from the direction of B-B in fig. 7.

Fig. 9 is a view from the direction of C-C in fig. 2.

Fig. 10 is a view from D-D of fig. 2.

Fig. 11 is an enlarged view at E in fig. 10.

Fig. 12 is a schematic structural view of the locking mechanism.

The specification reference numerals are as follows:

connector plug 10, insertion groove 10a, locking cavity 10b, plug housing 11, insulating inner housing 111, insulating outer housing 112, insulating body 113, insulating guide post 114, insertion portion 12, through hole 12a, terminal block 121, crimping groove 121a, positioning step 121b, conductive terminal 122, fixing member 123, positioning groove 123a, outer ring body 1231, crimping segment 12311, connecting segment 12312, inner ring body 1232, connecting ring body 1233, crimping seat 124, crimping ring 1241, crimping teeth 1242, limiting seat 125, cable connecting portion 13, connection terminal 131, connecting lug plate 1311, mounting hole 1311a, connecting tube 1312, wiring groove 1312a, cable fixing assembly 132, insulating sleeve 1321, collar 13211, crimping segment 13212, elastic fixing sleeve 1322, ring 13221, elastic crimping piece 13222, bolt 1323;

connector socket 20, mating groove 20a, pin 21, guide groove 21a, mating portion 211, fastening portion 212, cone section 2121, retaining section 2122, step section 2123, mounting portion 213, socket housing 22, elastic retaining piece 221, retaining ring 222, locking ring 223, and holding slope 223a;

the locking mechanism 30, the sliding lock piece 31, the locking portion 311, the held inclined surface 311a, the stopper portion 3121, the hook portion 3122, the support shaft 313, the mounting ring groove 314, the accommodation groove 315, the notch 316, the button 32, the torsion spring 33, the screw section 331, the first holding section 332, the second holding section 333;

the stopper projection 40, the first sliding chamber 40a, and the second sliding chamber 40b.

Detailed Description

The following is a further detailed description of the embodiments:

examples

As shown in fig. 1, 2 and 3, the energy storage connector of the present invention includes a plug-fit connector plug 10 and a connector receptacle 20, and a locking mechanism 30 capable of locking and unlocking the connector plug 10 and the connector receptacle 20 during the plugging process. The connector plug 10 is connected with energy storage equipment or a power supply through a cable, the connector socket 20 is configured on electric equipment or other charging equipment, when the connector plug 10 is plugged onto the connector socket 20, a current path is formed between the connector plug 10 and the connector socket 20, and then power supply of the energy storage equipment to the electric equipment or charging of the energy storage equipment by other charging equipment are achieved. In the present embodiment, the connector plug 10 is mated with the connector receptacle 20 along the mating direction of the connector plug 10.

The connector plug 10 is internally provided with a plugging groove 10a along the plugging direction, the plugging groove 10a is opened towards the connector socket 20, the connector socket 20 is internally provided with a butting groove 20a opposite to the connector plug 10 along the plugging direction, the butting groove 20a is opened towards the connector plug 10, when the connector plug 10 and the connector socket 20 are plugged, the corresponding position of the connector plug 10 stretches into the butting groove 20a, and meanwhile, the corresponding position of the connector socket 20 stretches into the plugging groove 10a so as to form the current path between the connector plug 10 and the connector socket 20. A locking cavity 10b which is communicated with the plugging slot 10a is formed in the connector plug 10 and corresponds to the lower part of the plugging slot 10a, the locking mechanism 30 is slidably arranged in the locking cavity 10b, and the sliding direction of the locking mechanism 30 is staggered with the axial direction of the plugging slot 10a, so that the locking mechanism 30 can enter and exit the plugging slot 10a from the side surface of the plugging slot 10a to lock and unlock the connector socket 20 which extends into the plugging slot 10a, thereby facilitating the plugging and unplugging of the connector plug 10. In this embodiment, the locking cavity 10b is at least opened at one end in the sliding direction of the locking mechanism 30, the locking mechanism 30 is elastically inserted into the connector plug 10 from the opening of the locking cavity 10b, one end of the locking mechanism 30 is exposed out of the connector plug 10 after being inserted in place, and the other end of the locking mechanism extends into the inserting groove 10a as an acting point of an operator during unlocking so as to be in locking fit with the connector socket 20.

The connector plug 10 includes a plug housing 11, a plug portion 12 disposed in the plug housing 11 along a plugging direction, and a cable connection portion 13 disposed in the plug housing 11 and electrically connected to the plug portion 12, wherein a plugging cavity coaxial with the plugging slot 10a is formed in the plug housing 11, the plug portion 12 is fixedly disposed in the plugging cavity, and the plugging cavity can be used for inserting the connector socket 20, so that the plug portion 12 can be elastically contacted with the connector socket 20 to realize conduction between the connector plug 10 and the connector socket 20. The plugging slot 10a and the locking cavity 10b are both formed in the plug housing 11, a connection cavity communicated with the plugging cavity is further formed in the plug housing 11 at one end, corresponding to the plugging cavity, far away from the connector socket 20, of the plug housing, the cable connection portion 13 is at least partially wrapped in the connection cavity, and the cable connection portion 13 is used for connecting a cable so as to realize electrical conduction between the cable and the plugging portion 12. In this embodiment, the plugging portion 12 passes through the corresponding position of the cable connection portion 13 from the side of the cable connection portion 13 away from the connector socket 20 to the connector socket 20 and is riveted to the cable connection portion 13, and the plugging portion 12 is in interference fit with the cable connection portion 13, so that the plugging portion 12 is stably connected with the cable connection portion 13, so as to ensure stable current flowing between the plugging portion 12 and the cable connection portion 13.

The plug housing 11 includes an insulating inner housing 111 sleeved outside the plug portion 12, an insulating outer housing 112 coaxially disposed outside the insulating inner housing 111 and integrally formed with the insulating inner housing 111, and an insulating body 113 at least partially covering the cable connection portion 13 and integrally formed with the insulating inner housing 111 and/or the insulating outer housing 112. The outer peripheral surface of the insulating inner housing 111 is spaced from the inner peripheral surface of the insulating outer housing 112 to form the insertion groove 10a; to receive a corresponding location of the connector receptacle 20. The plugging cavity is formed in the insulating inner shell 111, the plugging cavity is at least open at one axial end, the connecting cavity is formed in the insulating outer shell 112, the axis of the connecting cavity and the axis of the plugging cavity intersect to form a certain included angle, and preferably 90 degrees, so that the stress direction of the cable is different from the stress direction of the plugging portion 12 in the plugging direction after the cable is connected, and when the cable is subjected to an external force, the tensile force direction transmitted to the plugging portion 12 is different from the stress direction of the plugging portion 12 in the plugging process, thereby being capable of avoiding the displacement or deformation of the connector plug 10 and ensuring the stable connection between the connector plug 10 and the connector socket 20. It will be appreciated that in other embodiments, the angle between the axis of the socket cavity and the axis of the connecting cavity may be set at other angles, such as an acute angle (30 °, 60 °, etc.) and an obtuse angle (120 °, 150 °, etc.), so that the stress direction of the cable deviates from the stress direction of the socket portion 12, thereby achieving stable connection between the connector plug 10 and the connector receptacle 20.

As a preferred mode of this embodiment, a through hole 12a communicating with the plugging cavity is formed at one end of the plugging portion 12 corresponding to the cable connection portion 13; the plug housing 11 further includes an insulating guide post 114 integrally formed from an inner wall surface of the insulating body 113 and extending into the plugging cavity through the through hole 12a, the insulating guide post 114 is coaxially disposed with the plugging cavity, and when the connector plug 10 is plugged onto the connector socket 20, the insulating guide post 114 can be inserted into the connector socket 20 along the plugging direction so as to guide the plugging direction of the connector plug 10.

As shown in fig. 4 and 5, the plugging portion 12 includes a terminal block 121 coaxially disposed in the plugging cavity and having a cavity formed along an axial direction, a conductive terminal 122 coaxially disposed in the cavity, and a fixing member 123 for fixing the conductive terminal 122 along the plugging direction. The terminal block 121 and one end of the conductive terminal 122 are fixed by a fixing member 123, one end of the conductive terminal 122, which is far away from the fixing member 123, is limited on the inner circumferential surface of the terminal block 121, and one end of the terminal block 121, which is far away from the fixing member 123, is penetrated on the cable connecting portion 13 and is riveted and fixed with the cable connecting portion 13.

A riveting groove 121a is formed on the outer peripheral surface of the terminal seat 121 at a position corresponding to the fixing member 123, and the fixing member 123 can be correspondingly riveted into the riveting groove 121a to fix the conductive terminal 122, so that the conductive terminal 122 can be stably and elastically contacted with the connector socket 20. The inner peripheral surface of the terminal seat 121 has a positioning step 121b protruding inward from one end of the terminal seat 123, the conductive terminal 122 has a substantially cylindrical structure, the outer diameter of the conductive terminal is adapted to the inner diameter of the terminal seat 121, and one end of the conductive terminal 122 away from the fixing member 123 correspondingly abuts against the positioning step 121 b. In this embodiment, the conductive terminal 122 and the terminal base 121 are made of copper alloy, and the fixing member 123 is made of stainless steel.

The terminal block 121 is in interference fit with the cable connecting portion 13. Specifically, the end of the terminal seat 121 away from the fixing member 123 integrally extends to form a rivet seat 124 in interference fit with the cable connecting portion 13, and a limit seat 125 integrally extending from the end of the rivet seat 124 away from the fixing member 123, where the diameter of the limit seat 125 is greater than that of the rivet seat 124 and/or the diameter of the terminal seat 121, and the terminal seat 121 is assembled onto the cable connecting portion 13 from the side of the cable connecting portion 13 facing away from the connector socket 20, and after being assembled in place, the terminal seat 121 is fixed by interference fit between the rivet seat 124 and the corresponding position of the cable connecting portion 13, and the terminal seat 121 is limited by abutting the corresponding end surface of the limit seat 125 and the corresponding position of the cable connecting portion 13. In this embodiment, the rivet seat 124 includes a rivet ring 1241 integrally formed on the terminal seat 121, and a plurality of rivet teeth 1242 integrally formed on an outer circumferential surface of the rivet ring 1241 along a circumferential direction of the rivet ring 1241, wherein an outer diameter of the rivet teeth 1242 is larger than an inner diameter of a corresponding position of the cable connecting portion 13, so as to form an interference fit with the cable connecting portion 13, thereby ensuring stable connection between the terminal seat 121 and the cable connecting portion 13.

One side of the fixing member 123 facing the terminal seat 121 and the conductive terminal 122 is formed with a positioning groove 123a, and the corresponding ends of the terminal seat 121 and the conductive terminal 122 are positioned in the positioning groove 123a to fix the terminal seat 121 and the conductive terminal 122. In this embodiment, the width of the positioning groove 123a is adapted to the thicknesses of the corresponding ends of the terminal block 121 and the conductive terminal 122, so that the corresponding ends of the terminal block 121 and the conductive terminal 122 can be positioned in the positioning groove 123a, and the loosening of the terminal block 121 and the conductive terminal 122 caused by a gap between the three is avoided, thereby increasing the contact stability between the conductive terminal 122 and the connector socket 20.

The fixing member 123 includes an outer ring body 1231 sleeved outside the terminal block 121, an inner ring body 1232 disposed at intervals inside the outer ring body 1231 and abutting against the inner wall of the conductive terminal 122, and a connection ring body 1233 connecting the outer ring body 1231 and the inner ring body 1232; in this embodiment, the outer ring body 1231, the connecting ring body 1233, and the inner ring body 1232 are integrally formed by stamping. The outer ring body 1231 is disposed in parallel outside the inner ring body 1232, and a spacer (not shown) is formed between the outer ring body 1231 and the inner ring body 1232, and the second conductive ring of the conductive terminal 122 is clamped in the spacer, that is, the second conductive ring is clamped between the inner wall surface of the terminal seat 121 and the inner wall surface of the inner ring body 1232; the connecting ring body 1233 closes the spacer from the end of the fixing member 123 near the connector socket 20 to form the positioning groove 123a. The outer ring body 1231 includes a riveting section 12311 and a connecting section 12312 integrally formed with the riveting section 12311 and the connecting ring body 1233, wherein the riveting section 12311 is located above the riveting slot 121a and can be pressed into the riveting slot 121a to fix the conductive terminal 122.

As shown in fig. 6, the cable connecting portion 13 includes a terminal 131 riveted to a corresponding end of the terminal block 121, and a cable fixing assembly 132 sleeved outside the terminal 131 and detachably connected to the plug housing 11. The connecting terminal 131 is wrapped in the connecting cavity, one end of the connecting terminal 131 is riveted with the terminal seat 121, and the other end of the connecting terminal 131 is exposed out of the insulating body 113 and connected with the cable fixing assembly 132. A cylindrical wiring groove 1312a is formed at the exposed end of the wiring terminal 131 for connecting cables; the axis of the wiring groove 1312a intersects with the axis of the plugging groove 10a and is arranged at an included angle.

The connection terminal 131 includes a connection lug 1311 disposed in the connection cavity and riveted with the terminal block 121, and a connection tube 1312 integrally extending from one end of the connection lug 1311. The connection lug plate 1311 is formed with a mounting hole 1311a penetrating along the plugging direction, the riveting seat 124 is riveted in the mounting hole 1311a, and the inner diameter of the mounting hole 1311a is smaller than the outer diameter of the riveting teeth 1242, so as to form an interference fit with the riveting seat 124. The connecting tube 1312 is at least partially located in the connecting cavity of the insulating body 113, and another portion (i.e. a portion far away from the connecting ear plate 1311) is exposed to the insulating body 113, and the cable fixing assembly 132 is looped around the exposed end of the connecting tube 1312. The connection pipe 1312 has a lower end opened to form the connection groove 1312a, and a cable is inserted into the connection groove 1312a from the opened end of the connection pipe 1312. In this embodiment, the connection terminal 131 is integrally formed by stamping a copper pipe, that is, the upper end of the copper pipe is flattened to form the connection lug 1311, and the lower end of the copper pipe is formed with the connection pipe 1312, so that no gap exists between the connection lug 1311 and the connection pipe 1312, thereby reducing interference of external signals and improving stability of current transmission. It is understood that in other embodiments, the connection ear plate 1311 and the connection tube 1312 may be formed by bending or injection molding a flat or sheet copper sheet or other conductive metal.

The cable fixing assembly 132 includes an insulating sleeve 1321 sleeved outside the exposed end of the connecting tube 1312, an elastic fixing sleeve 1322 sleeved outside the insulating sleeve 1321, and a bolt 1323 sleeved outside the elastic fixing sleeve 1322 and detachably connected to the insulating body 113. The upper end surface of the insulating sleeve 1321 abuts against the lower end surface of the insulating body 113, so as to close the gap between the cable fixing assembly 132 and the insulating body 113; the upper end of the insulating sleeve 1321 is provided with a collar 13211 protruding outwards, the upper end surface of the elastic fixing sleeve 1322 abuts against the lower end surface of the collar 13211, the lower end of the elastic fixing sleeve 1322 is bent inwards to form a bending ring 13221, and the upper end surface of the bending ring 13221 abuts against the lower end surface of the insulating sleeve 1321, so as to fix the insulating sleeve 1321 between the connecting pipe 1312 and the elastic fixing sleeve 1322; the inner diameter of the lower end of the bolt 1323 is smaller than the outer diameter of the elastic fixing sleeve 1322, the inner diameter of the bolt 1323 increases gradually from the lower end to the upper end, and the diameter of the largest inner diameter is not larger than the outer diameter of the elastic fixing sleeve 1322, so that when the bolt 1323 is screwed, the elastic fixing sleeve 1322 and the insulating sleeve 1321 can be gradually pressed inwards along with the ascending of the bolt 1323 to fix the cable.

In this embodiment, the lower end of the elastic fixing sleeve 1322 is provided with a plurality of elastic pressing pieces 13222 along the circumferential direction thereof, and the elastic pressing pieces 13222 can press the insulating sleeve 1321 inwards under the force and return outwards under the force loss; the lower end of the insulating sleeve 1321 extends downward beyond the connecting pipe 1312 and forms a holding section 13212 corresponding to the elastic holding piece 13222, which can be deformed by inward extrusion along with the elastic holding piece 13222, so as to tightly wrap the cable under the extrusion of the inner wall of the bolt 1323, thereby avoiding the cable from falling off.

As shown in fig. 7 and 8, the connector socket 20 includes a socket housing 22 and a pin 21 inserted into the socket housing 22 in the plugging direction and elastically contacting the plugging portion 12. The docking groove 20a is formed in the socket housing 22 along the plugging direction, the pin 21 and the docking groove 20a are coaxially arranged, a guide groove 21a for inserting the insulating guide post 114 along the plugging direction is formed in the pin 21 corresponding to the insulating guide post 114, when the connector plug 10 is plugged into the connector socket 20, the socket housing 22 is plugged into the plugging groove 10a, and the pin 21 is inserted into the plugging cavity and is matched and guided with the insulating guide post 114, so as to realize the plugging and matching of the pin 21 and the plugging part 12.

The pin 21 includes a mating portion 211 capable of being plugged into the plugging portion 12, a fastening portion 212 integrally extending from an end of the mating portion 211 away from the plugging portion 12, and a mounting portion 213 integrally extending from an end of the fastening portion 212 away from the mating portion 211 to the outside of the socket housing 22. The abutting portion 211 is formed in the abutting groove 20a and can elastically contact with the conductive terminal 122, and when the pin 21 is inserted into the socket housing 22 from an end of the socket housing 22 away from the connector plug 10, the fastening portion 212 can be fastened to an inner wall of the socket housing 22, so as to limit the pin 21 from moving along an axial direction during the insertion process, thereby improving the connection stability; the mounting portion 213 is exposed outside the socket housing 22 for connection with a component or circuit on the device. The fastening portion 212 includes a cone section 2121 integrally formed on the abutting portion 211, and a retaining section 2122 integrally protruding outwardly between the abutting portion 211 and the cone section 2121; the taper section 2121 is profiled with the corresponding position of the inner wall of the socket housing 22, and the diameter of the taper section 2121 gradually increases from the connection with the retaining section 2122 to the direction away from the retaining section 2122 so as to be in a taper structure, so that the insertion of the pin 21 from the rear end of the socket housing 22 is facilitated, and meanwhile, after the insertion of the pin 21 into place, the retaining section 2122 can be matched and abutted with the corresponding position of the inner wall of the socket housing 22 so as to limit the axial movement of the pin 21.

A step surface facing the connector plug 10 is integrally and convexly formed on the socket housing 22 at a position corresponding to the fastening portion 212, and a fastening portion fastened with the fastening portion 212 is integrally formed on an inner edge of the step surface; after the fastening portion is fastened with the fastening portion 212, the whole contact pin 21 can be stopped, and the contact pin 21 is prevented from moving along the axial direction. Specifically, the fastening portion includes a plurality of elastic retaining pieces 221 distributed along a circumferential direction, the plurality of elastic retaining pieces 221 gradually deviate to an axial direction from a connection position with the step surface to an end of the elastic retaining pieces 221 so as to enclose and form a cone structure copying with the cone section 2121, the elastic retaining pieces 221 can be outwards opened when stressed and inwards returned when in a force losing state, when the contact pin 21 is assembled, the retaining sections 2122 are contacted with an inner wall of the elastic retaining pieces 221 before the cone section 2121, and along with the forward movement of the contact pin 21, the retaining sections 2122 continuously push the elastic retaining pieces 221 to outwards expand until after the retaining sections 2122 pass an end of the elastic retaining pieces 221, the end of the elastic retaining pieces 221 in a force losing state is abutted against an end face of the side of the retaining sections 2122 facing the cone section 2121, and meanwhile, the inner wall of the elastic retaining pieces 221 are attached to an outer wall of the cone section 2121 and tightly hold the cone section 2121 so as to realize retaining of the contact pin 21.

As a preferred way of this embodiment, to further stop the pin 21, one end of the cone section 2121 away from the stop section 2122 is further formed with a step section 2123 integrally extending to form a diameter larger than the largest diameter of the cone section 2121, the socket housing 22 is provided with a stop ring 222 protruding inwards at a position corresponding to the step section 2123, and when the pin 21 is assembled in place, one end of the step section 2123 facing the cone section 2121 abuts against the corresponding end face of the stop ring 222, so as to prevent the pin 21 from moving forward continuously in the axial direction.

A locking ring 223 is arranged on the outer peripheral surface of the socket housing 22 and corresponds to one end of the plugging groove 10a in an outward protruding way, and the locking ring 223 is in locking fit with the locking mechanism 30. Specifically, the end surface of the locking ring 223 corresponding to one end of the plugging slot 10a is formed with a supporting inclined surface 223a facing the plugging slot 10a (or the locking mechanism 20), when the connector plug 10 and the connector socket 20 are plugged, the pin 21 is inserted into the plugging cavity, the socket housing 22 is inserted into the plugging slot 10a, the supporting inclined surface 223a can contact with the corresponding position of the locking mechanism 30 and push the locking mechanism 30 to act, and after plugging in place, the connector plug 10 and the connector socket 20 are locked by matching the locking ring 223 and the locking mechanism 30.

As shown in fig. 9, 10, 11 and 12, a stop lug 40 is protruding from the locking cavity 10b, and the stop lug 40 abuts against the locking mechanism 30. The locking cavity 10b includes a first sliding cavity 40a communicating with the plugging slot 10a and a second sliding cavity 40b formed beside the first sliding cavity 40a and communicating with the first sliding cavity 40a, and the locking protrusion 40 protrudes upward from the lower wall of the second sliding cavity 40b to lock the locking mechanism 30 when the locking mechanism 30 slides back.

The locking mechanism 30 includes a sliding locking block 31 elastically inserted into the locking cavity 10b and abutting against the stopping protrusion 40, a button 32 integrally disposed on the sliding locking block 31 and exposed out of the opening end of the locking cavity 10b, and a torsion spring 33 disposed on the sliding locking block 31 or in the locking cavity 10b and capable of interfering with the sliding locking block 31 and the locking cavity 10 b. One end of the torsion spring 33 is abutted or fixed with the locking cavity 10b, and the other end is abutted or fixed with the corresponding position of the sliding lock block 31. The button 32 is exposed out of the plug housing 11, when the button 32 is pushed inwards, the sliding lock block 31 can be synchronously driven to slide in the locking cavity 10b and withdraw from the inserting groove 10a to release the connector socket 20, at this time, the sliding lock block 31 drives the torsion spring 33 to relatively move with the locking cavity 10b, so that the torsion spring 33 is stressed to obtain resilience force, and when the button 32 is released, the torsion spring 33 rebounds and pushes the sliding lock block 31 and the button 32 to reset, and the sliding lock block 31 reenters the inserting groove 10a.

The sliding lock block 31 includes a locking portion 311 slidably disposed in the first sliding cavity 40a, and a stopping portion 3121 and a hook portion 3122 slidably disposed in the second sliding cavity 40b and integrally formed with the locking portion 311, wherein the locking portion 311 can at least partially enter and exit the insertion slot 10a to cooperate with the connector socket 20 to lock and unlock, the torsion spring 33 is disposed in the stopping portion 3121, and the hook portion 3122 cooperates with the stopping projection 40 to stop the sliding lock block 31 to self-lock the sliding lock block 31 after the sliding lock block 31 is inserted into the locking cavity 10 b; the torsion spring 33 is fitted in the stopper 3121. The locking portion 311 is formed with a held inclined surface 311a opposite to the holding inclined surface 223a corresponding to a portion protruding into the insertion groove 10a.

When the connector plug 10 and the connector socket 20 are inserted in the insertion slot 10a, the abutting inclined surface 223a on the locking ring 223 gradually approaches to and contacts the abutted inclined surface 311a as the socket housing 21 is inserted into the insertion slot 10a, and as the connector plug is inserted continuously, the abutting inclined surface 311a on the locking ring 223 pushes the abutted inclined surface 311a to enable the locking part 311 to withdraw from the insertion slot 10a and synchronously drive the locking part 3121 to squeeze the torsion spring 33 to enable the torsion spring 33 to obtain resilience force, at the moment, the clamping hook part 3122 synchronously moves towards a direction away from the locking lug 40, after the locking ring 223 passes over the abutted inclined surface 311a, the locking part 3121 returns under the resilience force of the torsion spring 33 and drives the locking part 311 and the clamping hook part 3122 to synchronously and automatically return until the clamping hook part 3122 is abutted against the locking lug 40 again, so that the locking of the connector socket 20 is realized. When the connector plug 10 is pulled out, the button 32 is pushed inward, the locking portion 311, the stop portion 3121 and the hook portion 3122 slide in the corresponding first sliding cavity 40a and second sliding cavity 40b, the locking portion 311 is withdrawn from the insertion slot 10a, the stop portion 3121 presses the torsion spring 33, the hook portion 3122 is separated from the stop projection 40 and is far away from the stop projection 40, at this time, the connector plug 10 can be separated from the connector socket 20, and when the connector plug 10 is pulled out, the button is released, and the locking portion 311, the stop portion 3121 and the hook portion 3122 are reset under the action of the torsion spring 33.

For mounting the torsion spring 33, a support shaft 313 having an axis perpendicular to the sliding direction of the stopper 3121 and a mounting groove 314 concavely provided on the outer periphery of the support shaft 313 are integrally provided in the stopper 3121; the torsion spring 33 is disposed in the mounting ring groove 314 and sleeved on the outer side of the support shaft 313, and the mounting ring groove 314 and the support shaft 313 can store and support the torsion spring 33, so that the torsion spring 33 is prevented from tilting or even falling off in the compression or stretching process, and the stability of the action of the locking mechanism 30 is ensured. The stopper 3121 further has a receiving groove 315 disposed along a tangential direction of the installation groove 314 and communicating with the installation groove 314, and a notch 316 independent of the receiving groove 315 and communicating the installation groove 314 with the second sliding chamber 40 b; one end of the torsion spring 33 extends into the accommodating groove 315 and abuts against or is fixed to a corresponding position of the accommodating groove 315, and the other end extends into the second sliding cavity 40b through the notch 316 and abuts against or is fixed to a corresponding position of the second sliding cavity 40b, so that when the stopper 3121 slides, the accommodating groove 315 can push the corresponding end of the torsion spring 33, and at this time, the two ends of the torsion spring 33 generate relative displacement, so that the torsion spring 33 generates torsion force to obtain resilience force capable of driving the sliding locking piece 31 to reset.

In this embodiment, the torsion spring 33 is preferably a torsion spring. The torsion spring 33 includes a spiral section 331 accommodated in the installation ring groove 314 and sleeved outside the support shaft 313, a first abutting section 332 integrally formed in a tangential direction along a first end of the spiral section 331, and a second abutting section 333 integrally formed in a tangential direction along a second end of the spiral section 331; the end of the first abutting section 332 penetrates the mounting ring groove 314 along the tangential direction and extends into the accommodating groove 315, the first abutting section 332 abuts against or is fixed to the accommodating groove 315, the end of the second abutting section 333 penetrates the mounting ring groove 314 along the tangential direction through the notch 316 and extends into the second sliding cavity 40b, and the second abutting section 333 abuts against or is fixed to the inner wall surface of the second sliding cavity 40b. It will be appreciated that in other embodiments, the torsion spring 33 may be replaced by a spring plate or the like to achieve automatic return of the sliding lock piece 31.

When the connector plug 10 is used, the connector plug 20 is opposite to the connector socket 20, the connector plug 10 is inserted into the connector socket 20 along the inserting direction through the matching alignment of the insulating guide post 114 and the guide groove 21a, at this time, the plug housing 11 moves along the abutting groove 20a and the socket housing 22 moves along the inserting groove 10a, when the connector socket 20 is about to be inserted into place (when the locking ring 223 is in contact with the locking part 3112), the button 32 is pressed inwards, the locking part 3112 withdraws from the inserting groove 10a, the blocking of the locking ring 223 is released, the button 32 is released, the whole sliding lock block 31 is reset under the action of the spring resilience, and after the locking part 3112 reenters the inserting groove 10a, the locking ring 223 is blocked from the reverse direction of the locking ring 223, so that the locking of the connector plug 20 is realized. When unlocking is required, the button 32 is released after the lock portion 3112 is withdrawn from the insertion groove 10a and the connector plug 10 is pulled out.

Claims

1. The utility model provides an energy storage connector, includes grafting complex connector plug and connector socket, be equipped with a jack groove along the grafting direction in the connector plug, the connector socket is including inserting the socket casing in the jack groove, its characterized in that: the locking mechanism is arranged in the connector plug and locks the socket shell; the connector plug is internally provided with a locking cavity communicated with the inserting groove, at least one end of the locking cavity is open, the locking mechanism comprises a sliding locking block and a torsion spring assembled on the sliding locking block or in the locking cavity, the sliding locking block comprises a locking part at least partially entering the inserting groove and a clamping hook part which is self-locking after the sliding locking block is inserted into the locking cavity, and two ends of the torsion spring interfere with the sliding locking block and the locking cavity respectively to provide elastic force for the sliding locking block.

2. The energy storage connector of claim 1, wherein: a locking ring in locking fit with the locking part is outwards convexly arranged on the outer peripheral surface of the socket shell and corresponds to one end of the inserting groove, and the locking ring is provided with a supporting inclined surface facing the inserting groove; one side of the locking part corresponding to the abutting inclined plane is provided with an abutted inclined plane which can be in contact with the abutting inclined plane, and the abutting inclined plane abuts against the abutted inclined plane and pushes the abutted inclined plane to enable the locking part to withdraw from the inserting groove when the connector plug and the connector socket are inserted.

3. The energy storage connector of claim 1, wherein: the locking cavity comprises a first sliding cavity communicated with the inserting groove and a second sliding cavity formed beside the first sliding cavity and communicated with the first sliding cavity, the locking part is arranged in the first sliding cavity in a sliding manner, the clamping hook part is arranged in the second sliding cavity in a sliding manner, and a position, corresponding to the clamping hook part, in the second sliding cavity is provided with a stop lug locked with the clamping hook part; the locking mechanism further comprises a button which is integrally formed with the sliding locking piece and is exposed out of the opening end of the locking cavity.

4. A power storage connector as defined in claim 3, wherein: the sliding lock block further comprises a stop part which is arranged in the second sliding cavity in a sliding way and is integrally formed with the locking part and the clamping hook part; the anti-static part is internally integrally provided with a support shaft with an axis perpendicular to the sliding direction of the anti-static part and an installation ring groove concavely arranged on the periphery of the support shaft, the anti-static part is also provided with a containing groove which is arranged along the tangential direction of the installation ring groove and communicated with the installation ring groove and a notch which is independent of the containing groove and communicated with the installation ring groove and the second sliding cavity, the torsion spring is contained in the installation ring groove and sleeved outside the support shaft, one end of the torsion spring extends into the containing groove and is abutted or fixed with the corresponding position of the containing groove, and the other end of the torsion spring extends into the second sliding cavity through the notch and is abutted or fixed with the corresponding position of the second sliding cavity.

5. The energy storage connector of claim 1, wherein: the connector plug comprises a plug shell, a plug-in part arranged in the plug shell along the plug-in direction and a cable connecting part arranged in the plug shell and electrically connected with the plug-in part, wherein the plug-in part is elastically contacted with the connector socket;

6. The energy storage connector of claim 5, wherein: the plug-in part comprises a terminal seat coaxially arranged in the plug-in cavity and axially provided with a cavity, a conductive terminal coaxially arranged in the cavity and a fixing piece for fixing the conductive terminal along the plug-in direction;

7. The energy storage connector of claim 5, wherein: the connector socket further comprises a contact pin which is inserted into the socket shell along the inserting direction and is elastically contacted with the inserting part; the contact pin comprises a butt joint part which is spliced into the splicing part, a buckling part which is integrally formed by extending from one end of the butt joint part far away from the connector plug, and a mounting part which is integrally formed by extending from one end of the buckling part far away from the butt joint part to the outside of the socket shell, wherein the buckling part is buckled on the inner wall of the socket shell.

8. The energy storage connector of claim 7, wherein: the buckling part comprises a cone section integrally formed on the abutting part and a stopping section integrally protruding outwards and arranged between the abutting part and the cone section, and the diameter of the cone section gradually increases from the joint of the cone section and the stopping section to a direction away from the stopping section.

9. The energy storage connector of claim 8, wherein: a step surface facing the connector plug is integrally and inwards arranged at the position of the socket shell corresponding to the buckling part in a protruding mode, and a buckling part buckled with the buckling part is integrally formed at the inner edge of the step surface;

10. The energy storage connector of claim 7, wherein: one end of the plugging part, which corresponds to the cable connecting part, is provided with a through hole communicated with the plugging cavity;