Wire harness connector fixing device and vehicle

Abstract

The utility model relates to the technical field of installation of wire harness connectors, in particular to a wire harness connector fixing device and a vehicle. The wire harness connector fixing device comprises an installation base used for installing a wire harness connector and further comprises an expansion nail rod and an expansion nail sleeve which are matched with each other, the expansion nail rod is arranged on the installation base, the expansion nail sleeve comprises an installation section used for being embedded into a sectional material or a plate and a penetrating-out end used for extending out of the sectional material or the plate, and the installation section is provided with a through hole. An expansion joint is arranged on the expansion nail sleeve, clamping teeth are arranged on the inner side of the penetrating-out end of the expansion nail sleeve, the expansion nail rod is provided with an expansion section and a clamping groove, the expansion section is used for enabling the penetrating-out end of the expansion nail sleeve to expand, the clamping groove is matched with the clamping teeth of the expansion nail sleeve, and the clamping groove is formed in the expansion section. The wire harness connector fixing device is strong in versatility, can be suitable for section bars or plates with different thicknesses, can satisfy installation and fixation of various connectors, and is convenient to install and high in reliability.

Description

TECHNICAL FIELD

[0001] The utility model relates to the installation technical field of wiring harness connector especially relates to a wiring harness connector fixing device and vehicle. BACKGROUND

[0002] With the rapid development of the automobile industry, the number of wiring harness circuits and wiring harness connectors of automobiles also increases, the wiring harness connector is the relay station of the wiring harness in the automobile circuit, the wiring harness branch (12) is connected together through the wiring harness connector, the wiring harness connector is usually fixed during installation to prevent the wiring harness connector from loosening, needle falling, signal contact failure and other faults caused by vibration during vehicle driving. Figure 5 However, the shell of the wiring harness connector is generally smooth, and direct bundling of the wiring harness connector body can easily cause loosening, and further cause needle falling, signal contact failure and other faults, with poor reliability.

[0003] Most of the wiring harness connectors of vehicles are fixed on vehicle profiles through airplane head buckles (15), as shown in Figure 6 , 7 The wiring harness connector is limited by the limiting edge (16) on the airplane head buckle (15) to prevent falling off. Although this structure can be used to fix the wiring harness connector, the deformation amount of the airplane head buckle (15) itself is limited, resulting in a small thickness range of applicable profiles or plates. If it is used on thicker profiles, the limiting edge (16) on the airplane head buckle (15) cannot be well limited, and there is still a problem of loosening and falling off, with poor reliability.

[0004] A wiring harness connector fixing device disclosed in a Chinese utility model patent with authorization announcement number CN219874347U and authorization announcement date October 20, 2023, includes a connector fixing structure for installing a wiring harness connector and a mounting seat. The connector fixing structure includes an accommodating cavity with open ends, which is used to accommodate an automobile wiring harness connector. The connector fixing structure is installed on the mounting seat, and a buckle is provided on the mounting seat. The mounting seat is used to detachably fix the automobile body through the buckle. The buckle used in the wiring harness connector fixing device is an airplane head buckle. The airplane head buckle limits the buckle through the elastic clamping plates on both sides of the buckle and the limiting edges on the elastic clamping plates. However, the deformation amount of the elastic clamping plates is limited. When matching thicker profiles or plates, the limiting edges on the elastic clamping plates cannot completely extend out of the profiles or plates, and the buckle cannot be limited. Usually, only profiles or plates with a thickness of 3 mm or less can be fixed. The universality is poor. If thicker profiles or plates are matched, there is still a problem of loosening and falling off of the wiring harness connector. SUMMARY

[0005] The purpose of this utility model is to provide a wire harness connector fixing device to solve the problem of wire harness connector loosening and falling off when the existing wire harness connector fixing device is matched with thicker profiles or plates; the purpose of this utility model is also to provide a vehicle using the wire harness connector fixing device.

[0006] To achieve the above objectives, the wire harness connector fixing device of this utility model adopts the following technical solution:

[0007] A wire harness connector fixing device includes a mounting base for mounting the wire harness connector, and also includes a cooperating expansion pin rod and an expansion pin sleeve. The expansion pin rod is disposed on the mounting base. The expansion pin sleeve includes an installation section for embedding into a profile or plate and a protruding end for extending out of the profile or plate. The expansion pin sleeve is provided with an expansion joint. A retaining tooth is provided on the inner side of the protruding end of the expansion pin sleeve. The expansion pin rod is provided with an expansion section for expanding the protruding end of the expansion pin sleeve and a retaining groove that mates with the retaining tooth of the expansion pin sleeve. The retaining groove is disposed on the expansion section.

[0008] Furthermore, the end of the expansion nail rod away from the mounting base is provided with a cone head.

[0009] Furthermore, an anti-rotation rib is provided on the outer side wall of the expansion nail rod, and an anti-rotation groove is provided on the inner side wall of the expansion nail sleeve to cooperate with the anti-rotation rib.

[0010] Furthermore, there are at least two sets of the anti-rotation ribs and anti-rotation grooves.

[0011] Furthermore, an inverted conical surface is provided at the end of the anti-rotation rib away from the mounting base.

[0012] Furthermore, the end of the expansion nail sleeve away from the protruding end is provided with a radially outward-turned flange.

[0013] Furthermore, there are at least four expansion joints.

[0014] Furthermore, an inverted conical surface is provided on the outer wall of the protruding end of the expansion nail sleeve.

[0015] Furthermore, the mounting base is a plate-shaped structure, and a connection structure for mounting wire harness connectors is provided on the mounting base.

[0016] Beneficial Effects: This utility model's wire harness connector fixing device is an improved invention. It employs an expansion nail structure to fix the wire harness connector to the profile or plate. The expansion section on the expansion nail rod allows the end of the expansion nail sleeve to expand and lock onto the profile or plate. The locking teeth on the expansion nail sleeve cooperate with the locking groove on the expansion nail rod, forming an integrated structure that prevents the expansion nail rod from falling off. It is suitable for profiles or plates of varying thicknesses, and even with thicker profiles or plates, it provides excellent fixing of the wire harness connector. It has high versatility, and the mounting base for installing the wire harness connector can be replaced according to different types of wire harness connectors. It can meet the installation and fixing needs of various wire harness connectors, and is easy to install, highly reliable, and less prone to problems such as loosening or falling off of the wire harness connector.

[0017] The vehicle of this utility model adopts the following technical solution:

[0018] A vehicle, including a vehicle profile, has a wiring harness connector fixing device as described above provided on the vehicle profile. The wiring harness connector fixing device includes a mounting base for mounting the wiring harness connector, and also includes a cooperating expansion pin rod and an expansion pin sleeve. The expansion pin rod is disposed on the mounting base. The expansion pin sleeve includes an installation section for embedding into the profile or sheet metal and a protruding end for extending out of the profile or sheet metal. The expansion pin sleeve is provided with an expansion joint. A retaining tooth is provided inside the protruding end of the expansion pin sleeve. The expansion pin rod is provided with an expansion section for expanding the protruding end of the expansion pin sleeve and a retaining groove that mates with the retaining tooth of the expansion pin sleeve. The retaining groove is disposed on the expansion section.

[0019] Furthermore, the end of the expansion nail rod away from the mounting base is provided with a cone head.

[0020] Furthermore, an anti-rotation rib is provided on the outer side wall of the expansion nail rod, and an anti-rotation groove is provided on the inner side wall of the expansion nail sleeve to cooperate with the anti-rotation rib.

[0021] Furthermore, there are at least two sets of the anti-rotation ribs and anti-rotation grooves.

[0022] Furthermore, an inverted conical surface is provided at the end of the anti-rotation rib away from the mounting base.

[0023] Furthermore, the end of the expansion nail sleeve away from the protruding end is provided with a radially outward-turned flange.

[0024] Furthermore, there are at least four expansion joints.

[0025] Furthermore, an inverted conical surface is provided on the outer wall of the protruding end of the expansion nail sleeve.

[0026] Furthermore, the mounting base is a plate-shaped structure, and a connection structure for mounting wire harness connectors is provided on the mounting base.

[0027] Beneficial Effects: This utility model relates to an improved invention. The vehicle includes a vehicle profile with a wiring harness connector fixing device. This device uses an expansion bolt structure to fix the wiring harness connector to the vehicle profile. The expansion section on the expansion bolt rod allows the end of the expansion bolt sleeve to expand and lock into the vehicle profile. The locking teeth on the expansion bolt sleeve cooperate with the locking groove on the expansion bolt rod, forming an integrated structure that prevents the expansion bolt rod from falling off. This invention is suitable for profiles of different thicknesses, and even with thicker profiles, it provides good fixation for the wiring harness connector. It has high versatility, and the mounting base for installing the wiring harness connector can be replaced according to different types of wiring harness connectors. It can meet the installation and fixing needs of various wiring harness connectors, and is convenient to install, highly reliable, and less prone to problems such as loosening or falling off of the wiring harness connector. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of one embodiment of the wire harness connector fixing device of this utility model;

[0029] Figure 2 This is a schematic diagram of the installation of the wire harness connector fixing device of this utility model;

[0030] Figure 3 This is a schematic diagram showing the matching of the wire harness connector fixing device of this utility model with a wire harness connector;

[0031] Figure 4 This is a schematic diagram of the connection structure on the mounting base of the wire harness connector fixing device of this utility model;

[0032] Figure 5 A schematic diagram of a wire harness connector using cable ties for fixing in the prior art;

[0033] Figure 6 This is a schematic diagram of the existing technology that uses an aircraft head-type clip to fix the wire harness connector;

[0034] Figure 7 This is a schematic diagram of the existing aircraft-nose-type buckle and its fit with the profile.

[0035] In the diagram: 1. Mounting base; 2. Expansion nail rod; 3. Expansion nail sleeve; 4. Flanged edge; 5. Mounting section; 6. Wire harness connector; 7. Connection structure; 8. 1mm profile; 9. 4mm profile; 10. 6mm profile; 11. Screw; 12. Wire harness branch; 13. Cable tie; 14. Wire harness trunk; 15. Airplane head type buckle; 16. Limiting edge; 17. Anti-rotation rib; 18. Anti-rotation groove; 19. Slot; 20. Expansion section. Detailed Implementation

[0036] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0037] This utility model's wire harness connector fixing device employs an expansion nail structure, allowing it to be installed on profiles or plates of different specifications and to secure the wire harness connector. The expansion section on the expansion nail rod allows the end of the expansion nail sleeve to expand and thus lock onto the profile or plate. The locking teeth on the expansion nail sleeve cooperate with the locking groove on the expansion nail rod, forming an integrated structure that prevents the expansion nail rod from falling off. It also provides good fixing when the wire harness connector needs to be installed on thicker profiles or plates. The mounting base can be replaced according to different types of wire harness connectors, satisfying the installation and fixing needs of various wire harness connectors, and exhibiting a high degree of versatility.

[0038] In a basic embodiment, such as Figure 1 As shown, the wire harness connector fixing device of this utility model includes a mounting base 1, which can be used to install the wire harness connector. An expansion pin rod 2 is installed below the mounting base 1 and is disposed on the mounting base 1. The wire harness connector fixing device of this utility model also includes an expansion pin sleeve 3, which cooperates with the expansion pin rod 2. The mounting base 1 can be detachably installed on the car body through the expansion pin rod 2 and the expansion pin sleeve 3. The expansion nail sleeve 3 is provided with an expansion joint to facilitate the expansion of the expansion nail sleeve 3 under the action of the expansion nail rod 2. The inner side of the protruding end of the expansion nail sleeve 3 is provided with a locking tooth. The expansion nail rod 2 is provided with a groove 19 that mates with the locking tooth of the expansion nail sleeve 3 and an expansion section 20 that causes the expansion nail sleeve 3 to expand. The groove 19 is provided on the expansion section 20. When fixing the wire harness connector, the expansion section 20 on the expansion nail rod 2 can cause the protruding end of the expansion nail sleeve 3 to expand and thus lock onto the profile or plate. The locking tooth on the expansion nail sleeve 3 and the groove 19 on the expansion nail rod 2 cooperate to form an integral structure of the expansion nail sleeve 3 and the expansion nail rod 2, preventing the expansion nail rod 2 from falling off, thereby fixing the wire harness connector fixing device of this utility model onto the profile or plate.

[0039] The expansion pin rod 2 and expansion pin sleeve 3 work together to make the wire harness connector fixing device of this utility model applicable to profiles or plates of different thicknesses. Even with thicker profiles or plates, it can still achieve good fixing of the wire harness connector 6, demonstrating high versatility. Figure 2 As shown, when the wire harness connector fixing device of this utility model is installed on 1mm profile 8, 4mm profile 9 and 6mm profile 10, it can achieve good fixing of the wire harness connector. The mounting base 1 used to install the wire harness connector can also be replaced according to different types of wire harness connectors, which can meet the installation and fixing of various wire harness connectors. It is easy to install, highly reliable, and not prone to problems such as loosening or falling off of the wire harness connector.

[0040] In a preferred embodiment, one end of the expansion pin 2 is fixedly connected to the lower end face of the mounting base 1, and the other end is provided with a cone. When the expansion pin 2 and the expansion pin sleeve 3 are engaged, the cone on the expansion pin 2 can guide the expansion pin 2 as it extends into the expansion pin sleeve 3, facilitating the advancement of the expansion pin 2 and causing the expansion pin sleeve 3 to expand. This, in turn, achieves tight clamping between the expansion pin sleeve 3 and the profile or plate, thereby fixing the wire harness connector fixing device of this invention onto the profile or plate, realizing the installation and fixing of the wire harness connector. In other embodiments, an external thread can be provided on the expansion pin 2, and an internal thread that mates with the external thread of the expansion pin 2 can be provided in the expansion pin sleeve 3. The engagement of the external thread on the expansion pin 2 and the internal thread on the expansion pin sleeve 3 makes it easier for the expansion pin 2 to be screwed in, causing the expansion pin sleeve 3 to expand and be clamped and fixed to the profile or plate, realizing the installation and fixing of the wire harness connector.

[0041] In a preferred embodiment, an anti-rotation rib 17 is provided on the outer wall of the expansion pin rod 2. The anti-rotation rib 17 is fixedly connected to the side wall of the expansion pin rod 2. An anti-rotation groove 18 is formed on the side wall of the expansion pin sleeve 3. The anti-rotation groove 18 engages with the anti-rotation rib 17 on the expansion pin rod 2 to prevent rotation. When the expansion pin rod 2 is installed in the expansion pin sleeve 3, the anti-rotation groove 18 on the expansion pin sleeve 3 engages with the anti-rotation rib on the expansion pin rod 2 to prevent relative rotation between the expansion pin rod 2 and the expansion pin sleeve 3, thereby preventing faults such as pin detachment and poor signal contact in the wire harness connector. An inverted conical surface is provided at the end of the anti-rotation rib 17. When the expansion pin rod 2 extends into the expansion pin sleeve 3, the conical surface at the end of the anti-rotation rib 17 can guide the expansion pin rod 2 to pass smoothly through the expansion pin sleeve 3. In other embodiments, an anti-rotation block can be provided on the side wall of the expansion pin rod 2, and an anti-rotation groove that mates with the anti-rotation block can be opened on the inner wall of the expansion pin sleeve 3. When the expansion pin rod 2 is installed in the expansion pin sleeve 3, the anti-rotation block provided on the side wall of the expansion pin rod 2 mates with the anti-rotation groove on the inner wall of the expansion pin sleeve 3 to prevent relative rotation between the expansion pin rod 2 and the expansion pin sleeve 3, thereby preventing faults such as pin detachment and poor signal contact in the wire harness connector.

[0042] In a preferred embodiment, at least two sets of anti-rotation ribs 17 are provided on the outer wall of the expansion pin rod 2 and anti-rotation grooves 18 are formed on the side wall of the expansion pin sleeve 3. This ensures that rotation between the expansion pin rod 2 and the expansion pin sleeve 3 is effectively prevented when the expansion pin rod 2 is inserted into the expansion pin sleeve 3, preventing faults such as pin detachment and poor signal contact in the wire harness connector. In other embodiments, multiple sets of anti-rotation ribs 17 are provided on the outer wall of the expansion pin rod 2 and anti-rotation grooves 18 are formed on the side wall of the expansion pin sleeve 3, further preventing relative rotation between the expansion pin rod 2 and the expansion pin sleeve 3, making the wire harness connector fixing device of this utility model more stable.

[0043] In a preferred embodiment, the expansion nail sleeve 3 includes a flange 4 and an installation section 5. When the expansion nail sleeve 3 is placed in the pre-drilled installation hole of the profile or plate, the presence of the flange 4 allows the installation section 5 of the expansion nail sleeve 3 to extend into the pre-drilled installation hole of the profile or plate, while the flange 4 remains on the outside, facilitating the installation of the expansion nail sleeve 3. No additional operation is required to fix the position of the expansion nail sleeve 3, making it more convenient to fix the wire harness connector to the profile or plate using the wire harness connector fixing device of this utility model. In other embodiments, the flange 4 is not provided on the expansion nail sleeve 3. Instead, a retaining edge can be symmetrically provided at one end of the mounting section 5 of the expansion nail sleeve 3. When a mounting hole for placing the expansion nail sleeve 3 is opened on the profile or plate, a stop part that cooperates with the retaining edge on the mounting section 5 can be provided in the mounting hole. The cooperation between the retaining edge on the mounting section 5 and the stop part in the mounting hole can prevent the expansion nail sleeve 3 from falling out of the mounting hole, thereby affecting the installation of the wire harness connector fixing device of this utility model, and further affecting the installation and fixing of the wire harness connector, increasing the workload.

[0044] In a preferred embodiment, one end of the mounting section 5 is fixedly connected to the flange 4, and the other end has at least four expansion joints. When the expansion bolt 2 passes through the expansion bolt sleeve 3, the expansion joints on the mounting section 5 facilitate the advancement of the expansion bolt 2, making it easier for the expansion bolt sleeve 3 to expand. The at least four expansion joints ensure that the protruding end of the expansion bolt sleeve 3 can be stably secured to the profile or sheet metal after expansion under the action of the expansion bolt 2. In other embodiments, the mounting section 5 may not have expansion joints, and the diameter of the expansion bolt 2 is equal to the diameter of the mounting section 5. After the expansion bolt 2 is pushed through the end of the mounting section 5, it can be bent to secure it to the vehicle profile or sheet metal, thereby achieving the installation and fixation of the wire harness connector.

[0045] In a preferred embodiment, an inverted conical surface is provided on the outer wall of the protruding end of the expansion bolt sleeve 3. This conical surface facilitates the installation of the expansion bolt sleeve 3 into the pre-drilled mounting holes in the profile or sheet metal, preventing difficulties in installation when the pre-drilled mounting holes are too small. In other embodiments, one end of the expansion bolt sleeve 3 can be flat. When drilling holes in the vehicle sheet metal or profile, the diameter of the mounting holes can be large, allowing for gaps when the expansion bolt sleeve 3 is installed in the pre-drilled mounting holes. The expansion bolt rod 2 expands the end of the expansion bolt sleeve 3, causing it to snap into the profile or sheet metal. After expansion, the diameter of the expanded end of the expansion bolt sleeve 3 will be larger than the diameter of the pre-drilled mounting hole in the sheet metal or profile, thus achieving the purpose of fixing the wire harness connector.

[0046] In a preferred embodiment, such as Figure 3 , 4As shown, the mounting base 1 is a plate-like structure. A connecting structure 7 for connecting the wire harness connector 6 is mounted on the mounting base 1. The wire harness connector 6 is mounted on the mounting base 1 through the connecting structure 7, and the connecting structure 7 is fixedly mounted on the mounting base 1. When it is necessary to fix different types of wire harness connectors, different connecting structures 7 can be replaced according to the wire harness connectors that need to be fixed, thereby satisfying the installation and fixing of various wire harness connectors. Moreover, the installation is convenient and highly reliable. In other embodiments, the mounting base 1 and the connecting structure 7 can be an integral structure. When it is necessary to install and fix different types of wire harness connectors, the entire mounting base 1 can be replaced to install and fix different types of wire harness connectors.

[0047] The expansion nail rod 2 and the mounting base 1 are separate structures. The expansion nail rod 2 is fixedly installed on the mounting base 1 with screws. When fixing the wire harness connector, the expansion nail rod 2 and the expansion nail sleeve 3 can be fixedly installed in the pre-drilled mounting holes on the profile or plate first. Then, the mounting base 1 is fixedly connected to the expansion nail rod 2 with screws. Finally, the wire harness connector is installed on the mounting base 1 to complete the installation and fixing of the wire harness connector. At the same time, the separate structure of the expansion nail rod 2 and the mounting base 1 also makes it easy to replace the mounting base 1 according to different wire harness connectors. In other embodiments, the expansion pin rod 2 and the mounting base 1 are an integral structure. The expansion pin rod 2 and the mounting base 1 together expand the expansion pin sleeve 3 to fix the mounting base 1. Then, the wire harness connector is installed on the mounting base 1 to complete the installation and fixation of the wire harness connector. The wire harness connector is installed on the mounting base 1 through the connecting structure 7. The connecting structure 7 is fixedly installed on the mounting base 1 by screws 11. When installing different types of wire harness connectors, different types of wire harness connectors can be installed and fixed by changing different connecting structures 7.

[0048] The expansion nail rod 2 and expansion nail sleeve 3 are separate structures. During installation, the expansion nail sleeve 3 can be installed first into the pre-drilled mounting holes in the profile or sheet metal, and then tightened and fixed using the expansion nail rod 2. This separate structure can accommodate various installation scenarios and meet diverse installation operation requirements. In other embodiments, when installing the expansion nail rod 2 and expansion nail sleeve 3, they can be installed first, and then the entire assembly can be installed and fixed.

[0049] Implementation method of the vehicle:

[0050] The innovation of this utility model lies in the adoption of the wiring harness connector fixing device of this utility model. The structure of the wiring harness connector fixing device is described above and will not be repeated here.

[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. A wiring harness connector securing device comprising a mounting base for mounting a wiring harness connector, characterized by, The expansion nail sleeve is provided with a stretch joint, a clamping tooth is arranged on the inside of the stretch-out end of the expansion nail sleeve, and the expansion nail rod is provided with an expansion section for expanding the stretch-out end of the expansion nail sleeve and a clamping groove matched with the clamping tooth of the expansion nail sleeve, and the clamping groove is arranged on the expansion section.

2. The wiring harness connector securement device of claim 1, wherein, The end of the expansion nail rod away from the mounting base is provided with a tapered head.

3. The wiring harness connector securing device of claim 1 or 2, wherein, A rotation-stopping rib is arranged on the outer side wall of the expansion nail rod, and a rotation-stopping groove matched with the rotation-stopping rib is arranged on the inner side wall of the expansion nail sleeve.

4. The wiring harness connector securement device of claim 3, wherein, The rotation-stopping rib and the rotation-stopping groove are at least two groups.

5. The wiring harness connector securement device of claim 3, wherein, A reverse tapered surface is arranged on the end of the rotation-stopping rib away from the mounting base.

6. The wiring harness connector securement device of claims 1 or 2, wherein, The end of the expansion nail sleeve away from the stretch-out end is provided with a radially outwardly turned-over flange.

7. The wiring harness connector securement device of claims 1 or 2, wherein, The stretch joint is at least four.

8. The wiring harness connector securement device of claims 1 or 2, wherein, A reverse tapered surface is arranged on the outer wall of the stretch-out end of the expansion nail sleeve.

9. The wiring harness connector securement device of claims 1 or 2, wherein, The mounting base is a plate structure, and a connecting structure for mounting a wire harness connector is arranged on the mounting base.

10. A vehicle comprising a vehicle profile, characterized in that The wire harness connector fixing device of any one of claims 1-9 is arranged on the vehicle profile.

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