Automobile wiring harness and plug-in thereof

Abstract

The invention relates to the technical field of automobile wiring harnesses, and discloses an automobile wiring harness, comprising a wiring harness, wherein an end portion of the wiring harness is sleeved with a wire clamping frame, and a portion of the wiring harness located inside the wire clamping frame is in a bent structure for adjusting different lengths of each wiring harness, a section of the wiring harness located inside the wire clamping frame is in a U-shaped structure, a wire clamping groove is provided on the wire clamping frame in a horizontal direction, and the wiring harness is slidably embedded in the inner side of the wire clamping groove. In this solution, the front end of the wiring harness is split, and the wire clamping frame is slidably sleeved on the outer side of the wiring harness, and the wiring harness is adjusted by the wire clamping frame to achieve adjustment of the tension at the connection position of the wiring harness, thereby avoiding the situation of excessive local tension and improving the stability of the wiring harness connection.

Description

Technical Field

[0001] This invention relates to the field of automotive wiring harnesses, and more particularly to an automotive wiring harness and its connector. Background Technology

[0002] Automotive wiring harnesses are the main network components of automotive circuits. A wiring harness is an assembly that connects circuits by crimping copper contact terminals (connectors) with wires and cables, and then molding an insulator or adding an outer metal shell.

[0003] There are various types of existing automotive wiring harness connections. Most of them use two copper plates to make contact with each other to achieve a connection. The outer insulating shell protects the copper plates and ensures the safety of the user. However, during the insertion process, some copper plates are prone to loosening, resulting in poor contact. In addition, due to errors in manufacturing, some have excessive friction after insertion, making insertion and removal inconvenient. At the same time, most existing wiring harnesses and copper plates are connected by soldering. However, improper soldering can easily lead to cold solder joints or false solder joints, resulting in the subsequent wiring harness being unusable or having low durability.

[0004] Regarding the aforementioned technologies, the inventors believe that existing wire harness plugs are prone to excessive or insufficient friction due to manufacturing errors, and that the ends of the wire harness may have poor soldering or false soldering, affecting the subsequent use of the wire harness. Summary of the Invention

[0005] To address the aforementioned problems, the present invention provides an automotive wiring harness and its connectors.

[0006] The present invention provides an automotive wiring harness and its connector, which adopts the following technical solution:

[0007] An automotive wiring harness includes a wiring harness with a wire clamping frame at the end of the wiring harness, and the portion of the wiring harness located inside the wire clamping frame has a bent structure for adjusting the different lengths of each wiring harness.

[0008] Preferably, the section of the wire harness located inside the wire clamping frame has a U-shaped structure, and the wire clamping frame has a wire clamping groove along the horizontal direction, with the wire harness slidingly embedded inside the wire clamping groove.

[0009] An automotive wiring harness connector includes a socket and a plug that mates with the socket. The plug is electrically connected to a wiring harness, and a plurality of mating rods are fixedly connected to the inner side of the plug by threads. The inner side of the socket is provided with a plurality of pins that mate with the mating rods.

[0010] The docking rod includes two sets of centrally symmetrical clamping sections, connecting sections and contact sections arranged sequentially from front to back. The clamping sections and contact sections are rotatably arranged around the position of the connecting section, and both contact sections are inclined towards the center position.

[0011] The inner side of the connecting rod is fitted with an abutment block, and the inner side of the abutment block is threaded with a sliding pin. Each sliding pin is fixedly connected to one of the wire harnesses. The side of the abutment block away from the sliding pin is provided with a chamfer, and the chamfer abuts against the contact section, pushing the contact section outward and the clamping section close to the center position, increasing the friction between the clamping section and the pin.

[0012] Preferably, the plug has several through holes that mate with the docking rod, and the outer side of the connecting section of the docking rod is fitted with an installation ring, which is threadedly fixed to the inner side of the through hole. Each installation ring has a rotating groove corresponding to two connecting sections.

[0013] Preferably, an end cap is snapped onto one end of the plug near the wire harness, and a snap-fit ​​piece is provided between the plug and the end cap. The snap-fit ​​piece includes a first snap-fit ​​piece and a second snap-fit ​​piece. Both the first and second snap-fit ​​pieces have slots corresponding to the wire harness, and the slots on the first and second snap-fit ​​pieces are staggered. The first and second snap-fit ​​pieces move towards each other to adjust the width of the two corresponding slots, so as to realize the snap-fit ​​or gap fit between the slots and the wire harness and the cable. The upper and lower sides of the first and second snap-fit ​​pieces are respectively provided with operating rods, and a locking structure for adjusting the spacing is provided between two adjacent upper operating rods.

[0014] Preferably, the end of the sliding pin is integrally formed with a threaded section and an abutting section, the threaded section and the abutting block are threadedly connected, the inner walls of the abutting section and the abutting block are fitted together, and the pin is provided with an insertion hole, which is configured to cooperate with the sliding pin.

[0015] Preferably, the contact section is provided with a first mounting groove, and the first mounting groove and the wire core in the wire harness are interference-fitted, and the wire core is embedded in the inner side of the first mounting groove.

[0016] Preferably, a second mounting groove is coaxially formed on the abutting section, and a bolt hole is formed on the abutting section perpendicular to the axis of the second mounting groove.

[0017] Preferably, the contact section has a plurality of third placement slots arranged in a ring array, and each third placement slot is respectively interference-fitted with one of the wire cores of the wire harness, and the depth of the third placement slot is less than the diameter of each wire core.

[0018] In summary, the present invention has at least one of the following beneficial technical effects:

[0019] 1. By splitting the front end of the wire harness and simultaneously using the sliding sleeve to clamp the wire frame on the outside of the wire harness, the tension at the connection position of the wire harness can be adjusted by using the clamp to avoid excessive local tension.

[0020] 2. By setting a rotatable mating rod on the inside of the plug, and sliding a contact block for operation on the inside of the mating rod, the plug in the socket pushes the sliding pin, thereby controlling the clamping section, so that the end of the plug and socket mating has sufficient friction, while there is no friction in the initial section, thereby improving the convenience of plugging and unplugging.

[0021] 3. By adjusting the movable connecting clip inside the plug, different constraint effects can be achieved on the wire harness. When the plug is pulled out, the contact block is pushed forward in conjunction with the pulling action, thereby reducing the friction during pulling out and improving the ease of pulling out. Attached Figure Description

[0022] Figure 1 This is an isometric structural schematic diagram of an embodiment of the invention.

[0023] Figure 2 This is a schematic diagram of the exploded structure of an embodiment of the invention.

[0024] Figure 3 This is a partial cross-sectional structural schematic diagram of an embodiment of the invention.

[0025] Figure 4 This is a schematic diagram of the docking rod structure according to an embodiment of the invention.

[0026] Figure 5 This is an enlarged structural schematic diagram of point A in an embodiment of the invention.

[0027] Figure 6 This is a schematic diagram of the snap-fit ​​structure of an embodiment of the invention.

[0028] Figure 7 This is a schematic diagram of the card frame structure according to an embodiment of the invention.

[0029] Figure 8 This is a schematic diagram of the sliding pin structure of Embodiment 1 of the invention.

[0030] Figure 9 This is a schematic diagram of the sliding pin structure of Embodiment 2 of the invention.

[0031] Figure 10 This is a schematic diagram of the sliding pin structure of Embodiment 3 of the invention.

[0032] Explanation of reference numerals in the attached drawings: 1. Socket; 2. Plug; 201. Through hole; 3. Pin; 301. Socket; 4. End cap; 5. Wire harness; 6. Wire clamping frame; 601. Wire clamping groove; 7. Operating lever; 8. Connecting lever; 801. Clamping section; 802. Contact section; 803. Connecting section; 804. Mounting ring; 805. Rotating groove; 9. Snap-fit ​​piece; 901. First snap-fit ​​piece; 902. Second snap-fit ​​piece; 903. Snap-fit ​​groove; 10. Locking structure; 11. Abutment block; 12. Sliding pin; 1201. Abutment section; 1202. Threaded section; 1203. First mounting groove; 1204. Second mounting groove; 1205. Bolt hole; 1206. Third mounting groove. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-10 The present invention will be described in further detail below.

[0034] This invention discloses an automotive wiring harness and its connector. (See also...) Figure 1-8 A type of automotive wiring harness includes a wiring harness 5, with a wire clamping frame 6 fitted at the end of the wiring harness 5. The portion of the wiring harness 5 located inside the wire clamping frame 6 has a bent structure for adjusting the different lengths of each wiring harness 5. The section of the wiring harness 5 located inside the wire clamping frame 6 has a U-shaped structure. A wire clamping groove 601 is formed on the wire clamping frame 6 along the horizontal direction, and the wiring harness 5 is slidably embedded in the inner side of the wire clamping groove 601.

[0035] An automotive wiring harness connector includes a socket 1 and a plug 2 that mates with the socket 1. The plug 2 is electrically connected to a wiring harness 5. Several mating rods 8 are fixedly connected to the inner side of the plug 2 by threads. Several pins 3 that mate with the mating rods 8 are provided on the inner side of the socket 1.

[0036] The docking rod 8 includes two sets of centrally symmetrical clamping sections 801, connecting sections 803, and contact sections 802 arranged sequentially from front to back. The clamping sections 801 and contact sections 802 are rotatably arranged around the position of the connecting section 803, and both contact sections 802 are inclined towards the center. The plug 2 has several through holes 201 that mate with the docking rod 8. The outer side of the connecting section 803 of the docking rod 8 is fitted with a mounting ring 804, and the mounting ring 804 is threadedly fixed to the inner side of the through hole 201. Each mounting ring 804 has a rotating groove 805 corresponding to the two connecting sections 803. Preferably, the rotating groove 805 and the connecting section 803 are clearance-fitted, so as to ensure that the connecting section 803 can deflect within a certain range in the rotating groove 805, thereby realizing the outward expansion of the contact section 802 and the inward retraction of the clamping section 801.

[0037] A contact block 11 is slidably embedded in the inner side of the connecting rod 8, and a sliding pin 12 is threadedly connected to the inner side of the contact block 11. Each sliding pin 12 is fixedly connected to one of the wire harnesses 5. A chamfer is provided on the side of the contact block 11 away from the sliding pin 12, and the chamfer abuts against the contact section 802, pushing the contact section 802 outward. The clamping section 801 moves towards the center position, increasing the friction between the clamping section 801 and the pin 3. An end cap 4 is snapped onto the end of the plug 2 near the wire harness 5. A snap-fit ​​piece 9 is provided between the plug 2 and the end cap 4. The snap-fit ​​piece 9 includes a first snap-fit ​​piece 901 and a second snap-fit ​​piece 902. Both the first snap-fit ​​piece 901 and the second snap-fit ​​piece 902 have openings for the wire harness. The corresponding slots 903 are offset on the first and second contact plates 901 and 902, respectively. The first and second contact plates 901 and 902 move relative to each other, adjusting the width of the two corresponding slots 903 to achieve a snap-fit ​​or gap fit between the slots 903 and the five cables in the wire harness. Operating levers 7 are provided on the upper and lower sides of both the first and second contact plates 901 and 902, respectively. A locking structure 10 for adjusting the spacing is provided between two adjacent operating levers 7 at the top. The locking structure 10 can be a threaded rod or a spring, preferably a threaded rod, as the threaded rod provides more intuitive adjustment of the tightness and prevents wire breakage under excessive external force. The relative sliding between the wire harness 5 and the snap-fit ​​piece 9, the plug 2 has a slot for the operating lever 7 to move. When the plug 2 is pulled out, the operating lever 7 is pushed towards the socket 1, causing it to push the wire harness 5, which in turn pushes the contact block 11 towards the socket 1. After the inner side of the contact section 802 loses its limit, the friction of the clamping section 801 on the pin 3 is reduced, making it easy to pull out the plug 2. The end of the sliding pin 12 is integrally formed with a threaded section 1202 and a contact section 1201. The threaded section 1202 and the contact block 11 are threadedly connected. The inner walls of the contact section 1201 and the contact block 11 are fitted together. The pin 3 has a socket 301. The insertion hole 301 is configured to cooperate with the sliding pin 12. Preferably, the depth of the insertion hole 301 is less than that of the sliding pin 12, so that the insertion pin 3 can push the sliding pin 12, thereby causing the contact block 11 to move to one side of the contact section 802 along with the sliding pin 12. The contact section 1201 is provided with a first placement groove 1203, and the first placement groove 1203 and the wire core in the wire harness 5 are interference fit, and the wire core is embedded in the inner side of the first placement groove 1203. Preferably, the wire core is set to protrude from the first placement groove 1203, and the wire core is soldered to the contact section 1201 by soldering, thereby ensuring the contact effect between the wire core and the contact block 11 when the contact section 1201 and the inner wall of the contact block 11 are in contact.

[0038] Example 2:

[0039] Reference Figure 9The difference between this embodiment and embodiment one is only that: a second mounting groove 1204 is coaxially provided on the contact section 1201, and a bolt hole 1205 is provided on the contact section 1201 perpendicular to the axis of the second mounting groove 1204. Preferably, the diameter of the second mounting groove 1204 is larger than the diameter of the wire core. The wire core is inserted into the second mounting groove 1204, and a bolt is threaded into the bolt hole 1205. The wire core is fixed in the second mounting groove 1204 by the contact between the bolt and the wire core.

[0040] Example 3:

[0041] Reference Figure 10 The difference between this embodiment and embodiment one is only that: the contact section 1201 has a plurality of third mounting slots 1206 arranged in a ring array, and each third mounting slot 1206 is respectively interference-fitted with one of the wire cores of the wire harness 5, and the depth of the third mounting slot 1206 is less than the diameter of each wire core. Preferably, when each wire core is embedded in the third mounting slot 1206, it protrudes from the outer wall of the contact section 1201. When the contact section 1201 is installed into the contact block 11 through the threaded section 1202, the outer wall of each wire core is interference-fitted with the inner wall of the contact block 11, thereby ensuring the stability of the connection between them.

[0042] The implementation principle of an automotive wiring harness and its plug-in according to an embodiment of the present invention is as follows: After the front end of the wiring harness 5 is separated, it is inserted into the wire clamping frame 6. The wire clamping frame 6 is used to realize the independent adjustment of the length of each cable in the wiring harness 5, thereby reducing the tension at the connection position and improving the stability of the wiring harness 5 connection. When the plug 2 is inserted, the pin 3 pushes the sliding pin 12 to move towards the contact section 802, and the abutment block 11 pushes the contact section 802 to expand outward. At this time, the clamping section 801 squeezes inward around the connecting section 803, thereby realizing the interference fit between the plug 2 and the pin 3, ensuring a tight connection between the plug 2 and the socket 1, while preventing excessive friction at the initial stage of insertion. The abutment section 1201 of the sliding pin 12 achieves connection with the wiring harness 5 through different placement grooves, ensuring good contact between the wire core and the inner wall of the abutment block 11, and reducing the possibility of poor contact.

[0043] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automotive wiring harness plug-in, characterized in that: It comprises a socket (1) and a plug (2) matched with the socket (1), the plug (2) being electrically connected to a wiring harness (5), the inner side of the plug (2) being threadedly fixedly connected to a plurality of docking rods (8), and the inner side of the socket (1) being provided with a plurality of plug pins (3) matched with the docking rods (8); The docking rod (8) comprises two sets of centrally symmetrical clamping sections (801), connecting sections (803) and contact sections (802) which are arranged in sequence from front to back, the clamping sections (801) and contact sections (802) being arranged to rotate around the connecting sections (803), and the two contact sections (802) being arranged to be inclined toward the center; A resistance block (11) is slidably embedded on the inner side of the docking rod (8), and a sliding embedded needle (12) is threadedly connected to the inner side of the resistance block (11), and each sliding embedded needle (12) is fixedly connected to one of the wiring harnesses (5). A chamfer is provided on the side of the resistance block (11) away from the sliding embedded needle (12), and the chamfer and the contact section (802) are in contact with each other to push the contact section (802) outward, and the clamping section (801) moves toward the center position, thereby increasing the friction between the clamping section (801) and the plug pin (3).

2. The automotive wiring harness plug-in according to claim 1, characterized in that: The plug (2) is provided with a plurality of through holes (201) that cooperate with the docking rod (8); a mounting ring (804) is sleeved on the outer side of the connecting section (803) of the docking rod (8); and the mounting ring (804) is threadedly fixedly connected to the inner side of the through hole (201); and each mounting ring (804) is provided with a rotation groove (805) corresponding to two connecting sections (803).

3. The automotive wiring harness plug-in according to claim 1, characterized in that: The plug (2) is clamped with an end cover (4) at one end close to the wiring harness (5), and a clamping piece (9) is arranged between the plug (2) and the end cover (4), and the clamping piece (9) comprises a first clamping piece (901) and a second clamping piece (902), and the first clamping piece (901) and the second clamping piece (902) are both provided with a clamping slot (903) corresponding to the wiring harness, and the clamping slots (903) on the first clamping piece (901) and the second clamping piece (902) are staggered, and the first clamping piece (901) and the second clamping piece (902) move relative to each other to adjust the transparent width of the two corresponding clamping slots (903) to achieve clamping or clearance fit between the clamping slots (903) and the cables of the wiring harness (5), and the upper and lower sides of the first clamping piece (901) and the second clamping piece (902) are respectively provided with operating rods (7), and a locking structure (10) for adjusting the spacing is arranged between the two adjacent operating rods (7) at the top.

4. The automotive wiring harness plug-in according to claim 1, characterized in that: The end of the sliding needle (12) is integrally formed with a threaded section (1202) and a resistance section (1201) in sequence, the threaded section (1202) and the resistance block (11) are threadedly connected, the resistance section (1201) and the inner wall of the resistance block (11) are fitted together, and the insertion pin (3) is provided with a plug hole (301), which is arranged in coordination with the sliding needle (12).

5. The automotive wiring harness plug-in according to claim 4, characterized in that: The abutment section (1201) is provided with a first placement groove (1203), and the first placement groove (1203) and the wire core in the wire harness (5) are interference-fitted, and the wire core is embedded in the inner side of the first placement groove (1203).

6. The automotive wiring harness plug-in according to claim 4, characterized in that: A second placement groove (1204) is coaxially provided on the abutment section (1201), and a bolt hole (1205) is provided on the abutment section (1201) perpendicular to the axis of the second placement groove (1204).

7. The automotive wiring harness plug-in according to claim 4, characterized in that: The abutment section (1201) is provided with a plurality of third placement grooves (1206) in an annular array, and each third placement groove (1206) is interference-fitted with one strand of the wire core of the wire harness (5), and the depth of the third placement groove (1206) is smaller than the diameter of each strand of the wire core.

8. The automotive wiring harness plug-in according to any one of claims 1 to 7, characterized in that: The end of the wire harness (5) is sleeved with a wire clamping frame (6), and the portion of the wire harness (5) located inside the wire clamping frame (6) is in a bent structure, which is used to adjust the different lengths of each wire harness (5).

9. The automotive wiring harness plug-in according to claim 8, characterized in that: A section of the wire harness (5) located inside the wire clamping frame (6) is in a U-shaped structure, a wire clamping groove (601) is provided on the wire clamping frame (6) in a horizontal direction, and the wire harness (5) is slidably embedded inside the wire clamping groove (601).

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