A new energy plug connector

Abstract

The application provides a new energy plug connector. A connecting wire is arranged in a shell and connected with a conductive terminal. A wire locking segment is connected with a wire locking sleeve and a force bearing seat to a floating seat. The floating seat is axially slidably arranged in the shell. A first compensation spring and a second compensation spring are respectively arranged on two axial sides of the floating seat. A first curved guide rail and a second curved guide rail hold a curved segment of the connecting wire. A driving pin of an inertial sliding block is matched with a closed driving groove of the second curved guide rail. When the connecting wire is axially slowly displaced due to thermal expansion and contraction or manufacturing tolerance, the floating seat and the two compensation springs are axially compensated. When the vehicle is normally vibrated, the driving pin moves in a straight air stroke segment. When the floating seat reaches the end of the stroke, the stop portion bears the force. When the vehicle is impacted, the driving pin enters an inclined driving segment and drives the second curved guide rail to release the reserved wire length of the curved segment, so as to reduce the load transmitted to the conductive terminal and reduce the fluctuation of the battery detection data.

Description

Technical Field

[0001] This invention relates to the field of new energy plug connector technology, and in particular to a new energy plug connector. Background Technology

[0002] The battery pack of a new energy vehicle typically includes battery modules, a battery management system, and a new energy vehicle plug connector for transmitting detection signals. One end of the connecting wire within the new energy vehicle plug connector connects to a conductive terminal, and the other end connects to the detection position of the battery module, used to transmit detection data such as voltage and temperature of individual cells. The connection status between the connecting wire and the conductive terminal directly affects the accuracy and stability of the detection data.

[0003] During vehicle operation, the battery pack is continuously subjected to vehicle vibration and road impact. The battery module also experiences repeated heating and cooling during charging and discharging. Different materials used in the connecting wires, new energy plug connector housing, and conductive terminals result in variations in thermal expansion and contraction. Furthermore, manufacturing tolerances and assembly deviations are unavoidable in the length of the connecting wires, the terminal connection positions, and the installation position of the new energy plug connector. When these factors combine, the connecting wires will experience slow axial displacement or instantaneous traction displacement relative to the new energy plug connector housing.

[0004] Existing new energy plug connectors typically employ a rigid wire-locking structure to fix the connecting wire within the housing, leaving very little room for the connecting wire to move. When the connecting wire is subjected to thermal expansion and contraction, assembly deviations, or vibration loads, the resulting forces tend to concentrate at the wire-locking position and the connection point between the connecting wire and the conductive terminals. After prolonged and repeated stress, the rigid wire-locking structure is prone to loosening, and the contact state of the conductive terminals will also change accordingly.

[0005] Loose wiring or unstable contact at conductive terminals can cause changes in contact resistance, leading to fluctuations in voltage, temperature, and other sensor data received by the battery management system. When the sensor data exceeds the set range, the battery management system may misinterpret the connection anomaly as a battery malfunction, issuing a fault warning or executing protective controls, thus affecting the operational stability of the new energy vehicle battery system. Summary of the Invention

[0006] In view of this, it is necessary to provide a new energy plug connector to solve the above problems.

[0007] Embodiments of this application provide a new energy plug connector, comprising: The housing is equipped with conductive terminals; The connecting wire, which passes through the housing and is connected to the conductive terminals, has a bent section and a locking section; Wire locking sleeve, used to secure the wire locking segment; The load-bearing seat is axially limited and fixed to the locking sleeve, and the floating seat slides along the connecting line axially on the housing; The first and second compensation springs are respectively abutted between the axial sides of the floating seat and the shell; A stop is provided on the housing and located at the end of the stroke of the floating seat, for the floating seat to abut against; The first curved guide rail is fixed to the housing; The second curved guide rail is slidably disposed in the housing and presses against the curved section relative to the first curved guide rail; An inertial slider is slidably mounted on the housing along a direction intersecting the axial direction of the connecting line, and is equipped with a drive pin; The second curved guide rail has a closed drive groove for sliding engagement of the drive pin. The closed drive groove includes a linear free travel section and an inclined drive section connected in sequence. The linear free travel section extends along the sliding direction of the inertial slider, and the inclined drive section is inclined along the direction of the second curved guide rail away from the first curved guide rail.

[0008] In at least one embodiment of this application, the housing is provided with a terminal mounting cavity, a bending compensation cavity and a wire locking cavity in sequence along the extension direction of the connecting line; The connecting wire also has a crimping section connected to the conductive terminal, and the crimping section, the bending section and the locking section are respectively disposed in the terminal mounting cavity, the bending compensation cavity and the locking cavity.

[0009] In at least one embodiment of this application, the locking sleeve is fitted and pressed against the outer periphery of the locking wire segment, and the outer periphery of the locking sleeve is provided with load-bearing shoulders and limiting rings at axial intervals. The support seat has a locking hole for the locking sleeve to pass through, and is located between the support shoulder and the limiting ring. The two ends of the locking hole form a front support surface that is axially opposite to the support shoulder and a rear limiting surface that is axially opposite to the limiting ring.

[0010] In at least one embodiment of this application, the inner circumference of the locking sleeve is provided with a plurality of clamping teeth that are circumferentially spaced and embedded in the insulation layer of the connecting wire; The floating seat is provided with a first spring plate and a second spring plate located on both radial sides of the locking sleeve. The first spring plate and the second spring plate each include a fixed end, an elastic arm that bends and extends from the fixed end toward the locking sleeve, and a pressure tongue formed at the free end of the elastic arm and abutting against the locking sleeve.

[0011] In at least one embodiment of this application, the housing is provided with an axial guide rail extending axially along the connecting line, and the floating seat is provided with an axial guide portion that slides with the axial guide rail; The housing is provided with a first spring seat and a second spring seat on both sides of the axial direction of the floating seat. The first compensating spring is abutted between the first spring seat and the floating seat, and the second compensating spring is abutted between the floating seat and the second spring seat.

[0012] In at least one embodiment of this application, the first compensation spring and the second compensation spring are both kept in a compressed state during the floating stroke of the floating seat, and the initial axial forces exerted by the two on the floating seat are balanced. The stop portion is provided in two parts, which are respectively located on the radial sides of the second compensating spring. The initial distance between the floating seat and the stop portion is less than the remaining compression stroke of the second compensating spring before it reaches the compression state.

[0013] In at least one embodiment of this application, the first curved guide rail is provided with an arc-shaped support surface, the second curved guide rail is provided with an arc-shaped pressing surface, and a curved channel is formed between the arc-shaped support surface and the arc-shaped pressing surface for the curved segment to pass through. The first curved guide rail and the second curved guide rail are respectively provided with a first elastic limiting arc rib and a second elastic limiting arc rib, and the first elastic limiting arc rib and the second elastic limiting arc rib respectively abut against the opposite sides of the curved section.

[0014] In at least one embodiment of this application, the outer side of the second curved guide rail is provided with a locking positioning part, a transition protrusion and a release positioning part in sequence along its sliding direction; The housing is provided with an elastic positioning piece, the free end of which forms a positioning head. The positioning head elastically abuts against the second curved guide rail and is positioned and engaged with the locking positioning part or the releasing positioning part.

[0015] In at least one embodiment of this application, the housing is provided with a trigger guide groove extending in a direction intersecting the axial direction of the connecting line, and the inertial slider is slidably disposed in the trigger guide groove; One end of the inertial slider is equipped with a trigger counterweight.

[0016] In at least one embodiment of this application, the groove wall of the trigger guide groove is provided with a damping element that elastically abuts against the inertial slider; A return spring is provided between the inertial slider and the housing, and the return spring remains compressed when the inertial slider is in the initial position.

[0017] The new energy plug connector implemented in this embodiment will have at least the following beneficial effects: The aforementioned new energy plug connector connects the locking segment of the connecting wire to the floating base via a locking sleeve and a bearing seat. The floating base can slide relative to the housing along the axial direction of the connecting wire. A first compensating spring and a second compensating spring are respectively abutted against both sides of the axial direction of the floating base. When the connecting wire experiences slow axial displacement due to battery pack temperature changes or manufacturing tolerances, the floating base moves with the connecting wire and absorbs the displacement through the elastic deformation of the two compensating springs, reducing the continuous load on the locking position and the connection position between the connecting wire and the conductive terminal.

[0018] After the floating seat moves to the end of its stroke and comes into contact with the stop, the axial load on the connecting wire is transmitted to the housing through the locking sleeve, bearing seat, floating seat and stop, preventing the over-stroke load from continuing to act on the conductive terminal.

[0019] When the vehicle is impacted by the road surface, the inertial slider moves relative to the housing, and the drive pin enters the tilt drive section after passing through the straight idle travel section. This drives the second curved guide rail away from the first curved guide rail, causing the curved section of the connecting line to release the reserved line length. The straight idle travel section can reduce false triggering caused by normal vehicle vibration, and the reserved line length released in the curved section can mitigate instantaneous traction loads.

[0020] By compensating for, absorbing, and releasing slow axial displacement, overtravel load, and instantaneous impact load, the loosening of the rigid locking structure and changes in the contact state of the conductive terminals are reduced, thereby reducing fluctuations in battery test data, lowering the risk of the battery management system misjudging battery faults, and improving the operational stability of the new energy vehicle battery system. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] in: Figure 1 This is a perspective view of a new energy plug connector in one embodiment; Figure 2 This is an exploded view of a new energy plug connector in one embodiment; Figure 3 This is a partial structural (bend compensation) cross-sectional view of a new energy plug connector in one embodiment; Figure 4 This is a cross-sectional view of the locking wire and axial compensation structure of a new energy plug connector in one embodiment; Figure 5 for Figure 4 Another sectional view of the locking wire and axial compensation structure shown; Figure 6 A perspective view of the floating seat in one embodiment; Figure 7 A perspective view of the first spring in one embodiment; Figure 8 A perspective view of the locking sleeve in one embodiment; Figure 9 This is a perspective view of the support seat in one embodiment.

[0023] Explanation of key component symbols: 100. New energy plug connectors; 1. Housing; 11. Terminal mounting cavity; 12. Bending compensation cavity; 13. Wire locking cavity; 14. Stop part; 15. Axial guide rail; 161. First spring seat; 162. Second spring seat; 17. Trigger guide groove; 2. Conductive terminals; 3. Connecting wire; 31. Crimped section; 32. Bending section; 33. Locking section; 34. Insulation layer; 41. Locking sleeve; 411. Holding tooth; 412. Bearing shoulder; 413. Limiting ring; 414. Snap ring groove; 42. Bearing seat; 421. Locking hole; 422. Front bearing surface; 423. Rear limiting surface; 43. Floating seat; 431. Axial guide part; 441. First spring; 442. Second spring; 443. Fixed end; 444. Elastic arm; 445. Pressing tongue; 51. First compensating spring; 52. Second compensating spring; 611. First curved guide rail; 6111. Arc-shaped support surface; 612. Second curved guide rail; 6121. Arc-shaped pressing surface; 613. Curved channel; 614. Locking and positioning part; 615. Transition protrusion; 616. Release positioning part; 6191. Linear free travel section; 6192. Inclined drive section; 621. First elastic limiting arc rib; 622. Second elastic limiting arc rib; 63. Inertia slider; 632. Trigger counterweight; 633. Drive pin; 64. Return spring; 65. Elastic positioning piece; 651. Positioning head; 66. Damping component. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] For ease of description, the direction in which the connecting wire extends from the conductive terminal outwards from the housing is called the outward direction, and the opposite direction is called the terminal direction; the direction in which the second curved guide rail moves away from the first curved guide rail is called the release direction, and the direction in which it moves closer to the first curved guide rail is called the locking direction; the direction in which the inertial slider moves from its initial position towards the tilting drive section is called the trigger direction. The above directions are only used to indicate the position and action relationship of each component and do not restrict the actual installation posture of the new energy plug connector.

[0026] Example 1 Please refer to Figures 1 to 9 This embodiment provides a new energy plug connector 100, including a housing 1, conductive terminals 2, connecting wires 3, locking sleeves 41, bearing seats 42, floating seats 43, first compensating springs 51, second compensating springs 52, stop portions 14, first bending guide rails 611, second bending guide rails 612, and inertial sliders 63. Figure 2 and Figure 3 The trigger counterweight 632, damping component 66 and reset spring 64 shown correspond to the anti-false triggering and automatic reset structure described in Embodiment 2. This embodiment does not include the above components.

[0027] The housing 1 is formed by the interlocking of a first housing half and a second housing half. The first housing half is a groove-shaped component with one open side, and the second housing half covers its open side. The periphery of the first housing half is provided with positioning posts and fixing buckles, and the second housing half is provided with corresponding positioning holes and snap-fit ​​holes. During assembly, the positioning posts are inserted into the positioning holes, the fixing buckles are engaged in the snap-fit ​​holes, and then the two housing halves are locked together with screws. Both the first and second housing halves are made of insulating engineering plastic.

[0028] The conductive terminal 2 is inserted into the housing 1. The conductive terminal 2 has elastic claws on both sides, and the inner wall of the housing 1 has corresponding slots. After the conductive terminal 2 is inserted, the elastic claws engage with the slots, thus preventing the conductive terminal 2 from retracting. One end of the conductive terminal 2 extends out of the housing 1 and is soldered to the circuit board of the battery management system, while the other end is crimped to the connecting wire 3.

[0029] The connecting wire 3 passes through the housing 1, and the portion of it located inside the housing 1 includes a bent section 32 and a locking section 33. The bent section 32 is located between the conductive terminal 2 and the locking section 33 and remains bent to store a reserved length of wire for release when the connecting wire 3 is stretched.

[0030] The locking sleeve 41 is a hollow cylindrical component that fits around the outer periphery of the locking wire segment 33. The locking sleeve 41 undergoes radial compression to produce plastic deformation and clamp the locking wire segment 33, thereby forming an axial fixation with the connecting wire 3.

[0031] The support seat 42 is fitted around the outer periphery of the locking sleeve 41 and forms an axial limiting connection with the locking sleeve 41. The support seat 42 can move slightly radially relative to the locking sleeve 41, but cannot disengage axially along the locking sleeve 41. When the locking sleeve 41 moves in the outgoing direction and the support shoulder 412 abuts against the support seat 42, the support seat 42 moves with the locking sleeve 41 in the outgoing direction; when the locking sleeve 41 moves in the terminal direction and the limiting ring 413 abuts against the support seat 42, the support seat 42 moves with the locking sleeve 41 in the terminal direction.

[0032] The floating seat 43 is frame-shaped with a mounting hole in its center. After the support seat 42 is inserted into the mounting hole, it is secured by the fixing clips around the mounting hole, thus fixing the support seat 42 and the floating seat 43 together. The two opposite sides of the floating seat 43 form a clearance sliding fit with the inner wall of the housing 1 along the axial direction of the connecting line 3, allowing the floating seat 43 to move axially along the connecting line 3 while restricting its rotation.

[0033] Both the first compensating spring 51 and the second compensating spring 52 are cylindrical helical compression springs, and are sleeved on the outside of the connecting wire 3. One end of the first compensating spring 51 abuts against the axial end face of the floating seat 43 facing the conductive terminal 2, and the other end abuts against the inner wall of the housing 1; one end of the second compensating spring 52 abuts against the axial end face of the floating seat 43 facing the wire exit direction, and the other end abuts against the inner wall of the housing 1. Both compensating springs are installed by abutment and are not rigidly fixed to the floating seat 43 or the housing 1.

[0034] When the connecting wire 3 experiences slow axial displacement due to temperature changes or manufacturing tolerances, the locking sleeve 41 drives the floating seat 43 to move via the bearing seat 42. When the floating seat 43 moves towards the wire exit direction, the second compensating spring 52 is further compressed, and the first compensating spring 51 is gradually released; when the floating seat 43 moves towards the terminal direction, the first compensating spring 51 is further compressed, and the second compensating spring 52 is gradually released, thereby providing bidirectional axial adjustment space for the connecting wire 3.

[0035] The stop portion 14 is integrally formed with the first housing half and protrudes from the inner wall of the first housing half toward the float seat 43. The stop portion 14 is located at the end of the stroke of the float seat 43 in the direction of line exit and is opposite to the axial end face of the float seat 43.

[0036] When the tension in the outgoing direction of the connecting line 3 exceeds the compensation stroke of the floating seat 43, the floating seat 43 abuts against the stop part 14. The axial load that continues to increase thereafter is transmitted to the housing 1 in sequence through the locking sleeve 41, the bearing seat 42, the floating seat 43 and the stop part 14.

[0037] The first curved guide rail 611 is integrally formed with the first housing half. The second curved guide rail 612 has sliding bosses on both sides, and the inner wall of the first housing half has a corresponding guide groove extending in the release direction. The sliding bosses are inserted into the guide grooves and are in clearance fit with them, so that the second curved guide rail 612 can move in the release direction and the locking direction.

[0038] The first curved guide rail 611 and the second curved guide rail 612 are arranged opposite to each other, and the curved section 32 passes between them and is held by pressure. Compensation spaces are left between the two axial ends of the curved section 32 and the housing 1. The compensation spaces are connected to the gap between the two curved guide rails, providing space for the end movement of the curved section 32.

[0039] The inertial slider 63 and the housing 1 form a clearance sliding fit along the triggering direction. The inertial slider 63 has a drive pin mounting hole on the side facing the second curved guide rail 612. One end of the drive pin 633 is pressed into the drive pin mounting hole, and the other end extends into the second curved guide rail 612.

[0040] The second curved guide rail 612 has a closed drive groove. The closed drive groove is integrally formed with the second curved guide rail 612 and is surrounded by a continuous groove wall. One end of the drive pin 633 extends into the closed drive groove and is clearance-fitted with the groove wall, so that the drive pin 633 can move within the groove without coming out.

[0041] The enclosed drive slot includes a linear idle travel section 6191 and an inclined drive section 6192 connected in sequence. The linear idle travel section 6191 extends along the sliding direction of the inertial slider 63. When the drive pin 633 moves within the linear idle travel section 6191, it does not apply an effective driving force in the release direction to the second curved guide rail 612.

[0042] The tilting drive section 6192 extends tilted from the straight idle travel section 6191 toward the release direction. After the drive pin 633 enters the tilting drive section 6192, it abuts against the groove wall of the tilting drive section 6192 on the locking side, thereby pushing the second curved guide rail 612 to move in the release direction.

[0043] When the vehicle is impacted, the inertial slider 63 moves relative to the housing 1 in the triggering direction. After the drive pin 633 enters the tilt drive section 6192, the second bending guide rail 612 moves away from the first bending guide rail 611 along the guide groove, and the holding force on the bending section 32 decreases accordingly. Under the instantaneous axial tension of the connecting line 3, the bending section 32 gradually extends, and its two ends enter the corresponding compensation space, thereby releasing the reserved line length.

[0044] This embodiment does not include an automatic reset structure for the inertial slider 63. When a reset is required, the housing 1 is disassembled while the battery pack is under maintenance and the inertial slider 63 is pushed to move in the opposite direction of the trigger direction. The drive pin 633 returns sequentially along the inclined drive section 6192 and the linear idle travel section 6191, and drives the second curved guide rail 612 back to the locked position.

[0045] Example 2 Please refer to Figures 1-9 This embodiment, based on Embodiment 1, further describes the locking structure, axial compensation structure, bending release structure, and anti-mistriggered and automatic reset structure of the inertial slider 63 of the new energy plug connector 100. The connection relationships unchanged in Embodiment 1 continue to apply to this embodiment.

[0046] The housing 1 has two integrally formed partitions inside. The two partitions divide the interior of the housing 1 into a terminal mounting cavity 11, a bending compensation cavity 12, and a wire locking cavity 13 in sequence. The partitions have wire through holes for the connecting wires 3 to pass through, so that the three cavities are interconnected.

[0047] The conductive terminal 2 is inserted and fixed inside the terminal mounting cavity 11. The connecting wire 3 has a crimping section 31, a bending section 32, and a locking section 33 that are formed sequentially. The crimping section 31 is located in the terminal mounting cavity 11, and its end, after the insulation layer 34 has been removed, is inserted into the crimping cylinder of the conductive terminal 2 and is radially pressed by the crimping cylinder. The bending section 32 is located in the bending compensation cavity 12, and the locking section 33 is located in the locking cavity 13.

[0048] The inner circumference of the wire locking sleeve 41 is integrally formed with multiple clamping teeth 411. The multiple clamping teeth 411 are distributed at intervals along the circumference of the wire locking sleeve 41. After the wire locking sleeve 41 is crimped, the clamping teeth 411 are embedded in the insulation layer 34. The radial height of the clamping teeth 411 embedded in the insulation layer 34 is less than the thickness of the insulation layer 34, so they will not contact the conductor inside the connecting wire 3.

[0049] The locking sleeve 41 has a load-bearing shoulder 412 integrally formed at one end near the conductive terminal 2, and a retaining ring groove 414 is provided at the other end. The limiting ring 413 adopts an open metal retaining ring, the inner edge of which is inserted into the retaining ring groove 414, and the outer edge protrudes from the outer periphery of the locking sleeve 41.

[0050] A locking hole 421 is provided in the middle of the support seat 42. After the locking sleeve 41 passes through the locking hole 421, the support seat 42 is restricted between the support shoulder 412 and the limiting ring 413. The end of the locking hole 421 near the support shoulder 412 forms the front support surface 422, and the end near the limiting ring 413 forms the rear limiting surface 423.

[0051] When the connecting wire 3 moves in the direction of wire exit, the bearing shoulder 412 abuts against the front bearing surface 422; when the connecting wire 3 moves in the direction of the terminal, the limiting ring 413 abuts against the rear limiting surface 423. The inner diameter of the locking hole 421 is larger than the outer diameter of the locking sleeve 41, forming a radial clearance between them.

[0052] The support base 42 is embedded in the mounting hole in the middle of the floating base 43. One side of the support base 42 abuts against the limiting step in the mounting hole, and the other side is fastened by the fixing buckle around the mounting hole, thereby fixing it to the floating base 43.

[0053] The floating base 43 is provided with a first spring plate 441 and a second spring plate 442. Both spring plates are formed by bending spring steel sheets and include a fixed end 443, an elastic arm 444, and a pressure tongue 445, respectively. The fixed end 443 is attached to the surface of the floating base 43 and fixed by rivets. The elastic arm 444 extends from the fixed end 443 towards the locking sleeve 41 by bending. The pressure tongue 445 is formed at the free end of the elastic arm 444.

[0054] The first spring plate 441 and the second spring plate 442 are located on the radial sides of the locking sleeve 41, and the two pressure tongues 445 elastically abut against the outer periphery of the locking sleeve 41. When the locking sleeve 41 is subjected to lateral vibration, the two spring plates undergo elastic deformation, allowing the locking sleeve 41 to move slightly within the radial movement gap. The load-bearing shoulder 412 and the limiting ring 413 continue to restrict the locking sleeve 41 from axially disengaging from the load-bearing seat 42.

[0055] Two opposing inner walls of the housing 1 are integrally formed with axial guide rails 15, both of which extend axially along the connecting line 3. Two opposing sides of the floating seat 43 are provided with axial guide portions 431. The axial guide portion 431 is a guide groove, into which the axial guide rail 15 is inserted and slides with a clearance fit.

[0056] The first spring seat 161 and the second spring seat 162 are integrally formed with the inner wall of the housing 1 and are located on the two axial sides of the floating seat 43. Both spring seats have a central hole for the connecting wire 3 to pass through.

[0057] The first compensating spring 51 is sleeved on the outside of the connecting line 3, with its two ends abutting against the first spring seat 161 and the floating seat 43, respectively. The second compensating spring 52 is also sleeved on the outside of the connecting line 3, with its two ends abutting against the floating seat 43 and the second spring seat 162, respectively. After assembly, both compensating springs are in a compressed state but are not fixed to the connecting line 3.

[0058] The two stop portions 14 are integrally formed with the inner wall of the first housing half and are located on both radial sides of the second compensating spring 52. The two stop portions 14 are opposite to the axial end face of the float seat 43 facing the line exit direction, and the initial distance from the two to the float seat 43 is the same.

[0059] The first curved guide rail 611 forms an arc-shaped support surface 6111 on the side facing the curved section 32, and has a first mounting groove. The first elastic limiting arc rib 621 is embedded in the first mounting groove, and its two ends are respectively inserted into the insertion holes at both ends of the first mounting groove, thereby being fixedly connected to the first curved guide rail 611.

[0060] The second curved guide rail 612 forms an arc-shaped pressing surface 6121 on the side facing the curved section 32, and has a second mounting groove. The second elastic limiting arc rib 622 is embedded in the second mounting groove, and its two ends are respectively inserted into the insertion holes at both ends of the second mounting groove, thereby being fixedly connected to the second curved guide rail 612.

[0061] The first elastic limiting arc rib 621 and the second elastic limiting arc rib 622 are both bent from spring steel sheets. The bent section 32 is located between the two elastic limiting arc ribs and elastically abuts against them respectively. A bending channel 613 is formed between the arc-shaped support surface 6111 and the arc-shaped pressing surface 6121. The bending channel 613 is clearance-fitted with the bent section 32, and its two axial ends are respectively connected to the compensation space.

[0062] The two sliding bosses of the second curved guide rail 612 are respectively inserted into the two guide grooves of the first housing half. The sliding bosses are in clearance fit with the groove walls of the guide grooves, so that the second curved guide rail 612 can only move in the release direction and the locking direction.

[0063] The locking positioning part 614, the transition protrusion 615, and the release positioning part 616 are integrally formed on the outer side of the second curved guide rail 612. The locking positioning part 614 and the release positioning part 616 are both arc-shaped positioning grooves, and the transition protrusion 615 is an arc-shaped protrusion located between the two positioning grooves.

[0064] The fixed end of the elastic positioning piece 65 is attached to the inner wall of the first housing half and fixed by rivets. The free end of the elastic positioning piece 65 is bent to form a positioning head 651. The positioning head 651 elastically abuts against the outer side of the second curved guide rail 612 and can move along the locking positioning part 614, the transition protrusion 615 and the releasing positioning part 616.

[0065] When the second curved guide rail 612 is in the locked position, the positioning head 651 is inserted into the locking positioning part 614; when the second curved guide rail 612 reaches the release position, the positioning head 651 passes over the transition protrusion 615 and is inserted into the release positioning part 616.

[0066] The trigger guide groove 17 is formed on the inner wall of the first housing half and extends along the triggering direction. The trigger guide groove 17 is a rectangular straight groove with one side open. After the first housing half and the second housing half are engaged, the second housing half covers the open side of the trigger guide groove 17, thereby forming a closed sliding channel.

[0067] The inertial slider 63 is inserted into the trigger guide groove 17 and slides with the side wall of the trigger guide groove 17. The two end walls of the trigger guide groove 17 limit the initial position and the maximum trigger stroke of the inertial slider 63, respectively.

[0068] One end of the inertia slider 63 has an integrally formed counterweight mounting part, and the outer periphery of the counterweight mounting part is provided with external threads. The trigger counterweight 632 has a corresponding threaded hole and is screwed onto the counterweight mounting part. The connection is fixed by threaded anti-loosening adhesive.

[0069] The drive pin 633 is a cylindrical metal pin. One end of the drive pin 633 is pressed into the drive pin mounting hole of the inertia slider 63, and the other end is inserted into the closed drive groove. A gap is left between the axial end face of the drive pin 633 and the second housing half to avoid friction between them.

[0070] The side wall of the trigger guide groove 17 is provided with a damping mounting groove. The damping member 66 is embedded in the damping mounting groove with an interference fit. A portion of the damping member 66 protrudes from the damping mounting groove toward the inertia slider 63 and elastically abuts against the sliding surface of the inertia slider 63.

[0071] The return spring 64 is located on the front side of the inertia slider 63 along the triggering direction. A positioning post is provided at one end of the trigger counterweight 632 facing the return spring 64. One end of the return spring 64 is sleeved on the positioning post and abuts against the trigger counterweight 632, while the other end abuts against the end wall of the trigger guide groove 17 along the triggering direction. The trigger counterweight 632 is fixed to the inertia slider 63, so that the elastic force of the return spring 64 is transmitted to the inertia slider 63 through the trigger counterweight 632.

[0072] When the inertial slider 63 is in its initial position, the return spring 64 remains compressed. During normal vehicle vibration, the return spring 64 and the damping element 66 together restrict the movement of the inertial slider 63. The range of motion of the drive pin 633 remains within the linear free travel segment 6191, the positioning head 651 remains in the locking positioning part 614, and the second curved guide rail 612 will not release. In this embodiment, the damping element 66 is an elastic rubber block, the portion of which protrudes from the damping mounting groove elastically abuts against the sliding surface of the inertial slider 63. When the inertial slider 63 moves, the damping element 66 undergoes elastic deformation and applies sliding resistance to the inertial slider 63, thereby reducing the probability of false triggering caused by normal vibration.

[0073] When the vehicle is subjected to an impact reaching a set level, the inertial force generated by the trigger counterweight 632 causes the inertial slider 63 to move in the trigger direction. After the drive pin 633 enters the tilt drive section 6192, it drives the second curved guide rail 612 to move in the release direction. The positioning head 651 passes over the transition protrusion 615 and enters the release positioning section 616, keeping the second curved guide rail 612 in the release position.

[0074] After the second curved guide rail 612 reaches the release position, the distance between the two elastic limiting arc ribs increases. Under the action of instantaneous axial tension, the curved section 32 gradually extends, and its two ends enter the corresponding compensation space, thereby releasing the reserved line length.

[0075] After the impact weakens and the instantaneous axial tension acting on the connecting line 3 is released, the first compensation spring 51 and the second compensation spring 52 push the floating seat 43 back to the corresponding equilibrium position according to the current axial position of the connecting line 3, so that the bent section 32 regains the line length required to restore the predetermined bending state. At the same time, the reset spring 64 pushes the inertial slider 63 to move in the opposite direction, the drive pin 633 returns along the inclined drive section 6192, and drives the second bending guide rail 612 back to the locked position.

[0076] When the second curved guide rail 612 returns, the positioning head 651 passes over the transition protrusion 615 and re-embeds into the locking positioning part 614. The first elastic limiting arc rib 621 and the second elastic limiting arc rib 622 press the curved section 32 again, so that the curved section 32 returns to the predetermined curved state, completing the automatic reset.

[0077] Example 3 Please refer to Figures 1-9 This embodiment further explains the mating conditions, assembly process, and inspection methods of each connection part in the new energy plug connector 100. The specific actions and effects of automatic reset and stable anti-false triggering are performed according to Embodiment 2.

[0078] The initial compression of the first compensating spring 51 is greater than the maximum compensation stroke of the floating seat 43 in the direction of the lead wire, and the initial compression of the second compensating spring 52 is greater than the maximum compensation stroke of the floating seat 43 in the direction of the terminal, so as to ensure that the floating seat 43 always keeps in contact with the two compensating springs throughout the entire floating stroke.

[0079] When the first compensating spring 51 and the second compensating spring 52 are linear compression springs, the initial axial forces applied by the two to the floating seat 43 are balanced by adjusting the spring stiffness and the initial compression amount.

[0080] The initial distance between the floating seat 43 and the stop part 14 is less than the remaining compression stroke of the second compensating spring 52 before it reaches the compressed state, so that the floating seat 43 can abut against the stop part 14 before the second compensating spring 52 is fully compressed.

[0081] The radial clearance between the locking hole 421 and the locking sleeve 41 is smaller than the radial dimension of the bearing shoulder 412 and the limiting ring 413 protruding from the outer periphery of the locking sleeve 41, so as to prevent the bearing seat 42 from detaching from the locking sleeve 41.

[0082] The elastic pressure applied by the first spring plate 441 and the second spring plate 442 to the locking sleeve 41 should be able to limit the radial movement of the locking sleeve 41 under normal vibration, while allowing the locking sleeve 41 to move within the radial movement gap when subjected to a large lateral load.

[0083] When the curved section 32 is in the locked state, there is a first axial distance between its two ends; when the second curved guide rail 612 is in the released position, the distance between the two ends of the curved section 32 increases to a second axial distance. The difference between the second axial distance and the first axial distance is the axial compensation that the curved section 32 can provide.

[0084] The dimension of the compensation space along the axial direction of the connecting line 3 is not less than the maximum movement distance at the end when the reserved length of the bent section 32 is released, so as to prevent the housing 1 from hindering the extension of the bent section 32.

[0085] The tilt angle of the tilt drive section 6192 is determined based on the effective stroke of the inertial slider 63 after entering the tilt drive section 6192 and the release distance required for the second curved guide rail 612. The release displacement formed after the effective stroke of the inertial slider 63 is converted by the tilt drive section 6192 is not less than the distance required for the second curved guide rail 612 to move from the locked position to the release position.

[0086] The reset force applied by the return spring 64 to the second curved guide rail 612 via the drive pin 633 and the tilt drive section 6192 is greater than the resistance required for the positioning head 651 to pass over the transition protrusion 615, the sliding resistance of the second curved guide rail 612, the bending resistance of the curved section 32, and the sum of the frictional resistance between the drive pin 633 and the closed drive groove.

[0087] During assembly, first insert the conductive terminal 2 into the terminal mounting cavity 11, so that the elastic claws engage with the slots in the housing 1. Remove the insulating layer 34 from the end of the crimping section 31, insert the exposed conductor into the crimping cylinder of the conductive terminal 2, and complete the crimping.

[0088] The locking sleeve 41 is then placed around the outer periphery of the locking wire segment 33 and radially crimped, so that the crimping teeth 411 are embedded in the insulation layer 34. The bearing seat 42 is then inserted from the end of the locking sleeve 41 away from the bearing shoulder 412, and the limiting ring 413 is then engaged with the retaining ring groove 414, so that the bearing seat 42 is restricted between the bearing shoulder 412 and the limiting ring 413.

[0089] The support base 42 is inserted into the mounting hole of the floating base 43, and the fixing buckle is fastened to the outer edge of the support base 42. The first spring 441 and the second spring 442 are fixed to the floating base 43 by rivets, so that the two pressure tongues 445 respectively abut against the locking sleeve 41.

[0090] The first compensating spring 51 is placed between the first spring seat 161 and the floating seat 43, and the second compensating spring 52 is placed between the floating seat 43 and the second spring seat 162. At the same time, the axial guide portion 431 of the floating seat 43 is slidably engaged with the axial guide rail 15.

[0091] The first elastic limiting arc rib 621 is embedded into the first curved guide rail 611, and the second elastic limiting arc rib 622 is embedded into the second curved guide rail 612. After the curved section 32 is placed between the two elastic limiting arc ribs, the sliding boss of the second curved guide rail 612 is inserted into the guide groove of the first housing half.

[0092] The elastic positioning piece 65 is fixed to the first housing half by rivets, and the positioning head 651 is embedded into the locking positioning part 614. The trigger counterweight 632 is screwed onto the counterweight mounting part, the drive pin 633 is pressed into the inertia slider 63, and the damping member 66 is pressed into the damping mounting groove.

[0093] The return spring 64 is fitted onto the positioning post of the trigger counterweight 632, and then the inertial slider 63 is inserted into the trigger guide groove 17, and the drive pin 633 is driven into the closed drive groove. After the internal components are assembled, the second housing half is fastened onto the first housing half and locked in place by the fixing buckle and screws.

[0094] After assembly, check whether the crimped parts are secure, whether the snap-fit ​​parts are in place, whether the sliding parts are stuck, and whether each spring is in contact. Then, perform temperature cycling, slow axial displacement, axial traction, random vibration, and mechanical impact verification, and simultaneously detect the contact resistance of conductive terminal 2 and the detection data transmitted by connecting wire 3.

[0095] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A new energy plug connector, characterized in that, include: The housing is equipped with conductive terminals; A connecting wire, which passes through the housing and is connected to the conductive terminal, has a bent section and a locking section; A locking sleeve is used to fix the locking wire segment; The load-bearing seat is axially limited and fixed to the locking sleeve, and the floating seat is slidably disposed in the housing along the axial direction of the connecting line; The first compensation spring and the second compensation spring are respectively abutted between the axial sides of the floating seat and the housing; A stop is provided on the housing and located at the end of the stroke of the floating seat, for the floating seat to abut against; The first curved guide rail is fixed to the housing; The second curved guide rail is slidably disposed on the housing and presses against the curved section opposite to the first curved guide rail; An inertial slider is slidably disposed in the housing along a direction intersecting the axial direction of the connecting line, and is provided with a drive pin; The second curved guide rail has a closed drive groove for sliding engagement of the drive pin. The closed drive groove includes a linear free travel section and an inclined drive section connected in sequence. The linear free travel section extends along the sliding direction of the inertial slider, and the inclined drive section is inclined along the direction of the second curved guide rail away from the first curved guide rail.

2. The new energy plug connector according to claim 1, characterized in that, The housing is provided with a terminal mounting cavity, a bending compensation cavity and a wire locking cavity in sequence along the extension direction of the connecting line; The connecting wire also has a crimping section connected to the conductive terminal, and the crimping section, the bending section and the locking section are respectively disposed in the terminal mounting cavity, the bending compensation cavity and the locking cavity.

3. The new energy plug connector according to claim 1, characterized in that, The locking sleeve is fitted and pressed onto the outer periphery of the locking wire segment, and the outer periphery of the locking sleeve is provided with load-bearing shoulders and limiting rings at axial intervals. The support seat has a locking hole for the locking sleeve to pass through, and is located between the support shoulder and the limiting ring. The two ends of the locking hole form a front support surface that is axially opposite to the support shoulder and a rear limiting surface that is axially opposite to the limiting ring.

4. The new energy plug connector according to claim 3, characterized in that, The inner circumference of the locking sleeve is provided with a plurality of clamping teeth that are spaced apart circumferentially and embedded in the insulation layer of the connecting wire; The floating seat is provided with a first spring plate and a second spring plate located on both radial sides of the locking sleeve. The first spring plate and the second spring plate each include a fixed end, an elastic arm that bends and extends from the fixed end toward the locking sleeve, and a pressure tongue formed at the free end of the elastic arm and abutting against the locking sleeve.

5. The new energy plug connector according to claim 1, characterized in that, The housing is provided with an axial guide rail extending axially along the connecting line, and the floating seat is provided with an axial guide portion that slides with the axial guide rail; The housing is provided with a first spring seat and a second spring seat on both sides of the axial direction of the floating seat. The first compensating spring is abutted between the first spring seat and the floating seat, and the second compensating spring is abutted between the floating seat and the second spring seat.

6. The new energy plug connector according to claim 5, characterized in that, Both the first compensating spring and the second compensating spring remain in a compressed state during the floating stroke of the floating seat, and their initial axial forces on the floating seat are balanced. The stop portion is provided in two parts, which are respectively located on the radial sides of the second compensating spring. The initial distance between the floating seat and the stop portion is less than the remaining compression stroke of the second compensating spring before it reaches the compression state.

7. The new energy plug connector according to claim 1, characterized in that, The first curved guide rail is provided with an arc-shaped support surface, and the second curved guide rail is provided with an arc-shaped pressing surface. A curved channel is formed between the arc-shaped support surface and the arc-shaped pressing surface for the curved section to pass through. The first curved guide rail and the second curved guide rail are respectively provided with a first elastic limiting arc rib and a second elastic limiting arc rib, and the first elastic limiting arc rib and the second elastic limiting arc rib respectively abut against the opposite sides of the curved section.

8. The new energy plug connector according to claim 7, characterized in that, The outer side of the second curved guide rail is provided with a locking positioning part, a transition protrusion and a release positioning part in sequence along its sliding direction; The housing is provided with an elastic positioning piece, the free end of which forms a positioning head. The positioning head elastically abuts against the second curved guide rail and is positioned and engaged with the locking positioning part or the releasing positioning part.

9. The new energy plug connector according to claim 1, characterized in that, The housing is provided with a trigger guide groove extending in a direction intersecting the axial direction of the connecting line, and the inertial slider is slidably disposed in the trigger guide groove; One end of the inertial slider is equipped with a trigger counterweight.

10. The new energy plug connector according to claim 9, characterized in that, The groove wall of the trigger guide groove is provided with a damping element that elastically abuts against the inertial slider; A return spring is provided between the inertial slider and the housing, and the return spring remains compressed when the inertial slider is in the initial position.

Images