Automobile wire harness plug-in with elastic clearance and plugging method thereof

Abstract

The invention relates to the technical field of automobile wire harness plug-ins, in particular to an automobile wire harness plug-in with elastic clearance and a plugging method thereof.The automobile wire harness plug-in comprises a male plug-in connector and a female plug-in connector, and the female plug-in connector is provided with a second plugging terminal; the buffer mechanism is arranged on the male plug-in connector, a plug-in rod is arranged on the buffer mechanism, and a first plug-in terminal matched with the second plug-in terminal is arranged at the end part of the plug-in rod; the positioning guide assembly is arranged on the female plug-in connector and is connected with the plug-in rod; the follow-up pressure applying assembly is arranged on the female plug-in connector and connected with the positioning and guiding assembly, the female plug-in connector is further provided with a multi-stage locking mechanism connected with the plug-in rod, and through mutual cooperation of the positioning and guiding assembly and the multi-stage locking mechanism, it can be ensured that when the first plug-in terminal and the second plug-in terminal are mutually connected, the first plug-in terminal and the second plug-in terminal can not be locked, and the plug-in rod can not be locked when the first plug-in terminal and the second plug-in terminal are mutually connected. Therefore, the stability of the automobile wire harness plug-in is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of automobile wiring harness plug-ins, in particular to an automobile wiring harness plug-in with elastic clearance and a plug-in method thereof. Background Art

[0002] Automotive wiring harness plug-ins, also called automotive wiring harness connectors or connectors, are important components used to achieve electrical connections in automotive circuits.

[0003] The terminal is the part of the plug-in that connects to the wire and realizes electrical conduction. It is usually made of metals with good conductivity such as copper and copper alloy. The surface may be plated with gold, silver, nickel, etc. to improve conductivity and corrosion resistance. It is divided into male terminals and female terminals. The male terminal is generally needle-shaped, and the female terminal is generally hole-shaped or slot-shaped. The two cooperate with each other to achieve electrical connection.

[0004] When plugging in existing automotive wiring harnesses, the male terminal and the female terminal are usually directly controlled to be plugged in to each other. Since there is no positioning effect before plugging in, it may be necessary to adjust the angles of the male terminal and the female terminal multiple times to successfully dock them. After the plugging is completed, the locking piece can usually only provide a single locking force. If the external force is too large during use, the locking force of the locking piece may fail, resulting in problems such as loose plugging. Summary of the invention

[0005] The object of the present invention is to provide an automobile wiring harness plug-in with elastic clearance and a plug-in method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: An automobile wiring harness plug-in with elastic clearance, comprising: A male plug-in connector and a female plug-in connector, wherein the female plug-in connector is provided with a second plug-in terminal; Also includes: A buffer mechanism is arranged on the male plug connector, the buffer mechanism is provided with a plug rod, and the end of the plug rod is provided with a first plug terminal that matches the second plug terminal; A positioning guide assembly, disposed on the female plug-in connector and connected to the plug-in rod; A follow-up pressure assembly is arranged on the female plug-in connector and connected to the positioning guide assembly. The female plug-in connector is also provided with a multi-stage locking mechanism connected to the plug-in rod. The follow-up pressure assembly can be activated when the positioning guide assembly moves to perform a locking action on the plug-in rod.

[0007] As a further solution of the present invention: the positioning guide assembly includes a locking rod installed on the female plug-in connector, and the locking rod is formed with symmetrically arranged arc-shaped positioning grooves, straight grooves and through grooves, and the arc-shaped positioning grooves are connected to the ends of the straight grooves.

[0008] As a further solution of the present invention: the positioning guide assembly also includes a limiting column installed on the plug-in rod, and the limiting column is slidably matched with the arc-shaped positioning groove and the straight groove.

[0009] As a further solution of the present invention: the follower pressure assembly includes a movable ring and a follower ring slidably mounted on the locking rod, the movable ring is in contact with the limiting column, and a third spring and a fourth spring are sleeved on the locking rod, the two ends of the third spring are respectively in contact with the movable ring and the follower ring, and the two ends of the fourth spring are respectively in contact with the follower ring and the female plug-in connector.

[0010] As a further solution of the present invention: the multi-stage locking mechanism includes a rotating protection tube rotatably installed on the female plug-in connector, the inner wall of the rotating protection tube is provided with a spiral groove, the outer wall of the follower ring is provided with a limit block slidingly engaged with the spiral groove, and the rotating protection tube is provided with an engaging component connected to the plug-in rod.

[0011] As a further solution of the present invention: the engaging assembly includes a limit plate installed on the plug rod and symmetrically arranged, the limit plate is provided with a slot, and the inner wall of the rotating protection tube is provided with an arc-shaped locking block that is slidably engaged with the slot.

[0012] As a further solution of the present invention: the buffer mechanism includes a support sleeve installed on the male plug-in connector, a support rod fixedly connected to the plug-in rod is slidably installed in the support sleeve, and an elastic component connected to the support rod is arranged on the support sleeve.

[0013] As a further solution of the present invention: the elastic component includes a guide groove provided on the circumferential outer wall of the support sleeve, a limiting ring slidably connected to the guide groove is provided on the support rod, a first spring and a second spring are sleeved on the support sleeve, two ends of the first spring are respectively abutted against the limiting ring and the male plug-in connector, and two ends of the second spring are respectively abutted against the limiting ring and the support sleeve.

[0014] A method for plugging in an automobile wiring harness plug-in with elastic clearance comprises the following steps: Step 1: insert the plug rod into the positioning guide assembly, and under the action of the positioning guide assembly, control the first plug terminal to rotate to a matching position with the second plug terminal through the plug rod; Step 2: When the plug-in rod moves, it also drives the follow-up pressure component to move and controls the movement of the multi-stage locking mechanism; Step 3: When the first plug-in terminal is plugged into the second plug-in terminal, the multi-stage locking mechanism will lock the position of the plug-in component.

[0015] Compared with the prior art, the beneficial effect of the present invention is that the present application can achieve the effect of first positioning and then locking the first plug terminal through the mutual cooperation of the positioning guide component, the follow-up pressure component and the multi-stage locking mechanism. Specifically, when the plug rod enters the positioning guide component, under the action of the positioning guide component, the angle of the first plug terminal is adjusted by the plug rod until the first plug terminal is rotated to a position cooperating with the second plug terminal. After the positioning is completed, the positioning guide component will also control the movement of the multi-stage locking mechanism through the follow-up pressure component. When the first plug terminal is fully plugged into the second plug terminal, under the action of the multi-stage locking mechanism, the position of the plug rod is locked to ensure that there is no looseness between the first plug terminal and the second plug terminal, thereby ensuring the safety and stability of the wiring harness plug when in use.

[0016] If the plug-in rod needs to be removed, it is only necessary to manually control the rotation of the protective tube toward the initial angle so that the arc-shaped locking block is disengaged from the slot. The cooperation between the arc-shaped locking block and the slot can not only realize the quick plugging and unplugging of the wiring harness plug-in, which facilitates disassembly and installation, but also ensure the stability of the connection of the wiring harness plug-in through the arc-shaped locking block and the slot, thereby ensuring the safety and stability of the wiring harness plug-in when in use.

[0017] Since there are multiple arc-shaped locking blocks and card slots, when the wiring harness plug-in is subjected to external force and the plug-in rod has a tendency to move toward the outside of the locking rod, the arc-shaped locking block and the card slot can decompose the pulling force into multiple smaller forces, thereby increasing the external force that the wiring harness plug-in can withstand, so as to prevent the arc-shaped locking block from being deformed due to excessive external force, resulting in the problem of failure of the locking force.

[0018] The buffer mechanism can prevent the problem of wire harness breakage caused by the inability to buffer the tension on the wire harness, and can also reduce the force on the first plug-in terminal and the second plug-in terminal to ensure the stability of the connection between the two. When the force disappears, under the action of the first spring or the second spring, the support sleeve and the support rod are controlled to automatically reset to ensure the safety and stability of the use of the wire harness. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The present invention is a structural schematic diagram of an embodiment of an automobile wiring harness plug-in with elastic clearance.

[0020] Figure 2 This is a structural schematic diagram of another angle in an embodiment of an automobile wiring harness plug-in with elastic clearance.

[0021] Figure 3 The present invention is a schematic diagram of the structure of a buffer mechanism and a part of a multi-stage locking mechanism in an embodiment of an automobile wiring harness plug-in with elastic clearance.

[0022] Figure 4 The present invention is a schematic diagram of the connection relationship between a positioning guide assembly and a part of a multi-stage locking mechanism in an embodiment of an automobile wiring harness plug-in with elastic clearance.

[0023] Figure 5 for Figure 4 A schematic diagram of the enlarged structure at point A in the middle.

[0024] Figure 6 The present invention is a schematic diagram of the connection relationship among a follow-up pressure component, a positioning guide component, and a part of a multi-stage locking mechanism in an embodiment of an automobile wiring harness plug-in with elastic clearance.

[0025] Figure 7 The half-section structure schematic diagram of a rotating protective tube in an embodiment of an automobile wiring harness plug-in with elastic clearance.

[0026] Figure 8 The exploded structure diagram of the buffer mechanism and the plug-in rod in one embodiment of an automobile wiring harness plug-in with elastic clearance is shown.

[0027] Fig. 9 The present invention is a schematic diagram of the exploded structure of a follow-up pressure component, a positioning guide component, and a rotating protective tube in an embodiment of an automobile wiring harness plug-in with elastic clearance.

[0028] Fig.10 The present invention is a schematic structural diagram of a first plug-in terminal, a second plug-in terminal, and a plug-in rod in an embodiment of an automobile wiring harness plug-in with elastic clearance.

[0029] In the figure: 1, male plug-in connector; 2, supporting sleeve; 201, guide groove; 3, supporting rod; 301, limiting ring; 4, plug-in rod; 5, first spring; 6, second spring; 7, first plug-in terminal; 8, limiting plate; 801, slot; 9, limiting column; 10, female plug-in connector; 11, second plug-in terminal; 12, locking rod; 1201, limiting rod; 13, arc-shaped positioning groove; 14, straight groove; 15, through groove; 16, rotating protective tube; 1601, spiral groove; 17, arc-shaped locking block; 18, movable ring; 1801, limiting groove; 19, follower ring; 20, limiting block; 21, third spring; 22, fourth spring. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0032] See also Figure 1 to Figure 10 In an embodiment of the present invention, an automobile wiring harness plug-in with elastic clearance includes: A male plug-in connector 1 and a female plug-in connector 10, wherein the female plug-in connector 10 is provided with a second plug-in terminal 11; Also includes: A buffer mechanism is provided on the male plug connector 1, and a plug rod 4 is provided on the buffer mechanism, and a first plug terminal 7 that cooperates with the second plug terminal 11 is provided at the end of the plug rod 4; A positioning guide assembly, which is arranged on the female plug-in connector 10 and connected to the plug-in rod 4; The follower pressure assembly is arranged on the female plug-in connector 10 and connected to the positioning guide assembly. The female plug-in connector 10 is also provided with a multi-stage locking mechanism connected to the plug-in rod 4. The follower pressure assembly can be activated when the positioning guide assembly moves to perform a locking action on the plug-in rod 4.

[0033] Specifically, when the automobile wiring harness plug-in is plugged in, the plug rod 4 can be controlled to enter the positioning guide assembly. Under the action of the positioning guide assembly, the first plug terminal 7 is controlled by the plug rod 4 to rotate to a position matching with the second plug terminal 11. The plug rod 4 continues to move, and the follow-up pressure assembly is controlled to move through the positioning guide assembly to drive the multi-stage locking mechanism to move. When the first plug terminal 7 and the second plug terminal 11 are plugged in to each other, the multi-stage locking mechanism will perform a locking action on the plug rod 4, thereby ensuring that the position of the plug rod 4 no longer changes, so as to ensure that there is no looseness between the first plug terminal 7 and the second plug terminal 11. If the automobile wiring harness plug-in moves due to external force when in use, under the action of the buffer mechanism, the distance between the male plug connector 1 and the female plug connector 10 can be adaptively adjusted to prevent the wiring harness from being disconnected or the first plug terminal 7 from being separated from the second plug terminal 11 due to external force.

[0034] See also Figure 1 , Figure 2 , Figure 4-Figure 7 , Fig. 9 The positioning guide assembly includes a locking rod 12 installed on the female plug-in connector 10, and the locking rod 12 is formed with a symmetrically arranged arc-shaped positioning groove 13, a straight groove 14 and a through groove 15. The ends of the arc-shaped positioning groove 13 and the straight groove 14 are connected to each other. The positioning guide assembly also includes a limiting column 9 installed on the plug-in rod 4, and the limiting column 9 is slidably matched with the arc-shaped positioning groove 13 and the straight groove 14.

[0035] In detail, when connecting the automobile wiring harness plug-in, the first plug-in terminal 7 needs to be fully inserted into the second plug-in terminal 11. In order to ensure that the first plug-in terminal 7 will not be misaligned during the insertion process, the angle of the first plug-in terminal 7 needs to be adjusted before plugging. The arc-shaped positioning groove 13 is set at the end of the locking rod 12, and the straight groove 14 is connected to the center position of the arc-shaped positioning groove 13. When plugging, the plug-in rod 4 can be held and inserted into the locking rod 12. At the same time, the control limit column 9 and the arc-shaped positioning groove are connected. The arc segment of the positioning groove 13 abuts, and under the action of the arc positioning groove 13, the limiting column 9 slides along the trajectory of the arc positioning groove 13 to change the angle of the plug rod 4. When the limiting column 9 moves to the connection position of the arc positioning groove 13 and the straight groove 14, it means that the angle adjustment of the plug rod 4 is completed, and the first plug terminal 7 is just located in the matching position with the second plug terminal 11. Continue to control the plug rod 4 to enter the locking rod 12 until the first plug terminal 7 is completely inserted into the second plug terminal 11.

[0036] Preferably, by cooperating with the limit column 9 and the arc-shaped positioning groove 13 and the straight groove 14, the plugging angle of the first plug-in terminal 7 can be guided and positioned to prevent the plugging angle deviation between the first plug-in terminal 7 and the second plug-in terminal 11, which would cause the first plug-in terminal 7 and the second plug-in terminal 11 to be deformed or not plugged into place due to the plugging force.

[0037] See also Figure 6 , Figure 7 , Fig. 9 The follower pressure assembly includes a movable ring 18 and a follower ring 19 slidably mounted on the locking rod 12, the movable ring 18 is in contact with the limiting column 9, and a third spring 21 and a fourth spring 22 are sleeved on the locking rod 12. The two ends of the third spring 21 are respectively in contact with the movable ring 18 and the follower ring 19, and the two ends of the fourth spring 22 are respectively in contact with the follower ring 19 and the female plug-in connector 10.

[0038] See also Figure 4-Figure 10 The multi-stage locking mechanism includes a rotating protective tube 16 rotatably mounted on the female plug-in connector 10, a spiral groove 1601 is provided on the inner wall of the rotating protective tube 16, a limit block 20 slidably engaged with the spiral groove 1601 is provided on the outer wall of the follower ring 19, a fitting component connected to the plug-in rod 4 is provided on the rotating protective tube 16, the fitting component includes a limit plate 8 symmetrically mounted on the plug-in rod 4, a groove 801 is provided on the limit plate 8, and an arc-shaped locking block 17 slidably engaged with the groove 801 is provided on the inner wall of the rotating protective tube 16.

[0039] It should be noted that the limit plate 8 is slidably matched with the through slot 15. When the limit column 9 enters the straight slot 14, the limit plate 8 is just rotated to the matching position with the through slot 15. There are multiple slots 801, with the slot 801 facing the first plug-in terminal 7 as the starting point. The size of the slot 801 is the smallest, and the other slots 801 increase in sequence, and the spacing between adjacent slots 801 is the same. There are also multiple arc-shaped locking blocks 17, which match the number of slots 801. The arc-shaped locking block 17 facing the female plug-in connector 10 is the starting point. The size of the arc-shaped locking block 17 is the smallest and just matches the smallest size of the slot. 801 cooperate with each other, the sizes of other arc-shaped locking blocks 17 increase in sequence, and also correspond to the sizes of other card slots 801, the spacing between adjacent arc-shaped locking blocks 17 is the same, and the spacing is equal to the spacing between adjacent card slots 801, therefore, when the plug rod 4 enters the locking rod 12, the limit plate 8 will slide along the through slot 15, and in this process, the arc-shaped locking block 17 can only be smoothly inserted into the card slot 801 when it moves to the card slot 801 of the corresponding size, thereby ensuring that when the first plug terminal 7 is fully inserted into the second plug terminal 11, the arc-shaped locking block 17 can lock the plug rod 4 through the card slot 801; Among them, a limit rod 1201 is provided on the outer wall of the locking rod 12, and a limit groove 1801 is provided on the inner wall of the movable ring 18 and the follower ring 19 to be slidably connected with the limit rod 1201. Under the action of the limit rod 1201 and the limit groove 1801, it is ensured that the movable ring 18 and the follower ring 19 can only move along the length direction of the locking rod 12 and will not rotate. In the initial state, the plug-in rod 4 has not yet entered the locking rod 12. Therefore, the movable ring 18 is not subjected to external force, and the third spring 21 is in a normal state. Under the action of the third spring 21, the distance between the movable ring 18 and the follower ring 19 is maximized, and the fourth spring 22 is in a compressed state, so that the follower ring 19 is located at the end of the stroke away from the female plug-in connector 10, so that the limit block 20 is located at the end of the stroke of the spiral groove 1601 away from the female plug-in connector 10. Under the action of the limit block 20 and the spiral groove 1601, the rotating protection tube 16 will not rotate; See also Figure 7When it is necessary to connect the automobile wiring harness plug-in, at this time, the plug-in rod 4 can be held and inserted into the locking rod 12. Under the action of the positioning guide component, the limit column 9 enters the straight groove 14 and the limit plate 8 slides along the through groove 15. At this time, the limit plate 8 and the arc-shaped locking block 17 are in a dislocated state. As the plug-in rod 4 continues to move, when the limit column 9 moves to the position of abutting with the movable ring 18, the movable ring 18 is driven to move synchronously, and under the action of the limit rod 1201 and the limit groove 1801, it is ensured that the movable ring 18 does not rotate. The movable ring 18 will also compress the third spring 21. Since the elastic potential energy of the fourth spring 22 is greater than the elastic potential energy of the third spring 21 in the initial state, the follower ring 19 remains stationary before the elastic potential energy of the third spring 21 exceeds the elastic potential energy of the fourth spring 22. Subsequently, as the movable ring 18 continues to move, the elastic potential energy of the third spring 21 will exceed the elastic potential energy of the fourth spring 22, causing the follower ring 19 to move, thereby driving the limit block 20 to move, and the limit block 20 will slide along the spiral groove 1601. Under the action of the limit block 20 and the spiral groove 1601, the rotating protection tube 16 rotates, thereby driving the arc locking block 17 to move. When the arc locking block 17 moves to the position abutting against the limit plate 8, since only the arc locking block 17 moves to The arc-shaped locking block 17 can enter the corresponding slot 801 only when the arc-shaped locking block 17 is in the slot 801. Therefore, under the action of the limit plate 8, the arc-shaped locking block 17 no longer moves, so that the position of the follower ring 19 no longer changes. At this time, the movable ring 18 continues to move and compresses the third spring 21, so that the elastic potential energy of the third spring 21 continues to increase until the first plug-in terminal 7 is fully inserted into the second plug-in terminal 11, and the limit column 9 just moves to the end of the stroke of the straight slot 14, and the position of the movable ring 18 and the limit plate 8 is no longer The arc locking block 17 is no longer locked because the elastic potential energy of the third spring 21 is much greater than the elastic potential energy of the fourth spring 22. Therefore, the third spring 21 is elastically released and pushes the follower ring 19 toward the female plug-in connector 10, so that the fourth spring 22 continues to be compressed. At the same time, the follower ring 19 also drives the limit block 20 to move, so as to pass through the limit The limit block 20 and the spiral groove 1601 control the rotation of the rotating protection tube 16, and the rotating protection tube 16 will drive the arc-shaped locking block 17 to enter the corresponding slot 801. When the limit block 20 moves to the end of the stroke of the spiral groove 1601 toward the side of the female plug-in connector 10, the arc-shaped locking block 17 completely enters the slot 801. Under the action of the arc-shaped locking block 17 and the slot 801, the position of the plug rod 4 is locked, thereby ensuring that the first plug-in terminal 7 and the second plug-in terminal 11 will not loosen.

[0040] Preferably, when the arc-shaped locking block 17 enters the slot 801 and locks the position of the plug-in rod 4, since the elastic potential energy of the third spring 21 is still greater than the elastic potential energy of the fourth spring 22, the follower ring 19 has a tendency to move toward the female plug-in connector 10, and the movable ring 18 has a tendency to move away from the female plug-in connector 10, and the arc-shaped locking block 17 and the slot 801 limit the position of the plug-in rod 4 in the locking rod 12, so the thrust provided by the movable ring 18 cannot act on the rotation protection The arc-shaped locking block 17 and the card slot 801 can lock the plug-in rod 4 in response to the rotational force required by the tube 16. If the plug-in rod 4 needs to be removed, it is only necessary to manually control the rotation of the protective tube 16 toward the initial angle so that the arc-shaped locking block 17 is disengaged from the card slot 801. Through the above operation, the wiring harness plug-in can be quickly plugged in and out, which facilitates disassembly and installation. The arc-shaped locking block 17 and the card slot 801 can also ensure the stability of the connection of the wiring harness plug-in, thereby ensuring the safety and stability of the wiring harness plug-in when in use.

[0041] Since there are multiple arc-shaped locking blocks 17 and card slots 801, when the wiring harness plug-in is subjected to external force and the plug-in rod 4 has a tendency to move toward the outside of the locking rod 12, the arc-shaped locking block 17 and the card slot 801 can decompose the pulling force into multiple smaller forces, thereby increasing the external force that the wiring harness plug-in can withstand, so as to prevent the arc-shaped locking block 17 from being deformed due to excessive external force, resulting in the problem of failure of the locking force.

[0042] See also Figure 1-Figure 3 , Figure 8 The buffer mechanism includes a support sleeve 2 installed on the male plug-in connector 1, a support rod 3 fixedly connected to the plug-in rod 4 is slidably installed in the support sleeve 2, an elastic component connected to the support rod 3 is provided on the support sleeve 2, wherein the elastic component includes a guide groove 201 opened on the circumferential outer wall of the support sleeve 2, a limit ring 301 slidably connected to the guide groove 201 is provided on the support rod 3, a first spring 5 and a second spring 6 are sleeved on the support sleeve 2, two ends of the first spring 5 are respectively abutted against the limit ring 301 and the male plug-in connector 1, and two ends of the second spring 6 are respectively abutted against the limit ring 301 and the support sleeve 2.

[0043] Furthermore, in the initial state, the first spring 5 and the second spring 6 provide the same force to the limit ring 301. Under the action of the limit ring 301, the size of the mutual fit of the support sleeve 2 and the support rod 3 will not change. When the wiring harness plug-in is plugged in, the wiring harness plug-in may be subjected to forces in different directions when used. If the male plug-in connector 1 is subjected to a pulling force in the direction away from the female plug-in connector 10, the support sleeve 2 will move in the direction away from the support rod 3, causing the limit ring 301 to slide relatively in the guide groove 201, and the distance between the limit ring 301 and the male plug-in connector 1 is increased to compress the second spring 6. If the male plug-in connector 1 is subjected to a pushing force in the direction of the female plug-in connector 10, the support sleeve 2 will It will move in the direction of the support rod 3, so that the limit ring 301 slides relatively in the guide groove 201, and the distance with the male plug connector 1 is reduced to compress the first spring 5. By compressing the first spring 5 or the second spring 6, it can be achieved that when the wiring harness plug-in is subjected to forces in different directions, the size of the support sleeve 2 and the support rod 3 can be adaptively adjusted to fit each other, so as to prevent the problem of the wiring harness breaking due to the inability to buffer the tension on the wiring harness, and it can also reduce the force on the first plug terminal 7 and the second plug terminal 11, so as to ensure the stability of the connection between the two. When the force disappears, under the action of the first spring 5 or the second spring 6, the support sleeve 2 and the support rod 3 are controlled to automatically reset, so as to ensure the safety and stability of the use of the wiring harness.

[0044] A method for plugging in an automobile wiring harness plug-in with elastic clearance comprises the following steps: Step 1: insert the plug rod 4 into the positioning guide assembly, and under the action of the positioning guide assembly, control the first plug terminal 7 to rotate to a matching position with the second plug terminal 11 through the plug rod 4; Step 2: When the plug-in rod 4 moves, it will also drive the follow-up pressure component to move and control the movement of the multi-stage locking mechanism; Step 3: When the first plug-in terminal 7 and the second plug-in terminal 11 are plugged in, the multi-stage locking mechanism will lock the position of the plug-in component 4.

[0045] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0046] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An automotive wiring harness plug-in with elastic clearance, comprising: A male plug-in connector and a female plug-in connector, wherein the female plug-in connector is provided with a second plug-in terminal; It is characterized by further comprising: A buffer mechanism is arranged on the male plug-in connector, a plug-in rod is arranged on the buffer mechanism, and a first plug-in terminal matching with a second plug-in terminal is arranged at the end of the plug-in rod; A positioning guide assembly is disposed on the female plug-in connector and connected to the plug-in rod; The follow-up pressure component is arranged on the female plug-in connector and connected to the positioning guide component. The female plug-in connector is also provided with a multi-stage locking mechanism connected to the plug-in rod. The follow-up pressure component can be activated when the positioning guide component moves to perform a locking action on the plug-in rod.

2. The automotive wiring harness plug-in with elastic clearance according to claim 1, characterized in that: The positioning guide component comprises a locking rod installed on the female plug-in connector, on which arc-shaped positioning grooves, straight grooves and through grooves are symmetrically arranged, and the ends of the arc-shaped positioning grooves and the straight grooves are connected to each other.

3. The automotive wiring harness plug-in with elastic clearance according to claim 2, characterized in that: The positioning guide assembly also includes a limiting column installed on the plug-in rod, and the limiting column is slidably matched with the arc-shaped positioning groove and the straight groove.

4. The automotive wiring harness plug-in with elastic clearance according to claim 3, characterized in that: The follower pressure assembly includes a movable ring and a follower ring slidably mounted on the locking rod, the movable ring is in contact with the limiting column, a third spring and a fourth spring are sleeved on the locking rod, the two ends of the third spring are respectively in contact with the movable ring and the follower ring, and the two ends of the fourth spring are respectively in contact with the follower ring and the female plug-in connector.

5. The automotive wiring harness plug-in with elastic clearance according to claim 4, characterized in that: The multi-stage locking mechanism includes a rotating protective tube rotatably mounted on the female plug-in connector, a spiral groove is opened on the inner wall of the rotating protective tube, a limit block is provided on the outer wall of the follower ring and is slidably engaged with the spiral groove, and an engaging component connected to the plug-in rod is provided on the rotating protective tube.

6. The automotive wiring harness plug-in with elastic clearance according to claim 5, characterized in that: The engaging component comprises a limit plate which is symmetrically arranged and installed on the plug-in rod, a clamping groove is provided on the limit plate, and an arc-shaped locking block which is slidably engaged with the clamping groove is provided on the inner wall of the rotating protection tube.

7. The automotive wiring harness plug-in with elastic clearance according to claim 1, characterized in that: The buffer mechanism comprises a supporting sleeve mounted on the male plug-in connector, a supporting rod fixedly connected to the plug-in rod is slidably mounted in the supporting sleeve, and an elastic component connected to the supporting rod is arranged on the supporting sleeve.

8. The automotive wiring harness plug-in with elastic clearance according to claim 7, characterized in that: The elastic component includes a guide groove opened on the circumferential outer wall of the support sleeve, a limit ring slidably connected to the guide groove is arranged on the support rod, a first spring and a second spring are sleeved on the support sleeve, two ends of the first spring are respectively abutted against the limit ring and the male plug-in connector, and two ends of the second spring are respectively abutted against the limit ring and the support sleeve.

9. A method for plugging an automotive wiring harness plug-in with elastic clearance, using the automotive wiring harness plug-in with elastic clearance as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: insert the plug rod into the positioning guide assembly, and under the action of the positioning guide assembly, control the first plug terminal to rotate to a matching position with the second plug terminal through the plug rod; Step 2: When the plug-in rod moves, it also drives the follow-up pressure component to move and controls the movement of the multi-stage locking mechanism; Step 3: When the first plug-in terminal is plugged into the second plug-in terminal, the multi-stage locking mechanism will lock the position of the plug-in component.

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