A commercial vehicle firewall RF connector mounting device and vehicle

Abstract

This utility model discloses a fixing device for a commercial vehicle firewall RF connector and a vehicle, including a fixing component one and a fixing component two. Both fixing components one and two are square box structures with an open top and an open front. Each square box structure has a rear limiting hole on its rear end wall for limiting the rear end of the RF connector. Fixing components one and two are detachably connected, and together they form at least one mounting cavity for accommodating and positioning the RF connector. This utility model, through the detachable connection design of fixing components one and two, combined with the open top and open front square box structure, not only achieves convenient assembly and disassembly of components but also significantly reduces the complexity of wire harness processing, while providing convenience for on-site assembly operations and effectively improving assembly efficiency.

Description

Technical Field

[0001] This utility model relates to a fixing device for a firewall radio frequency connector in a commercial vehicle and the vehicle itself, belonging to the field of automotive radio frequency connector technology. Background Technology

[0002] With the accelerated development of intelligent technology in commercial vehicles, core safety features such as collision avoidance warning, lane departure warning, 270° surround view monitoring, and blind spot detection have become mainstream configurations. The implementation of these functions relies on multiple sets of sensing hardware installed outside the driver's cab, including a forward-facing camera, left and right side surround view cameras, and a reversing rearview camera. The digital video signals collected by these cameras need to be transmitted to the control unit inside the driver's cab via a dedicated video harness.

[0003] Since the cameras are all located outside the cabin, the digital video harnesses need to pass through the firewall (a key protective structure separating the interior and exterior of the cabin) in front of the cockpit to establish a signal path. This requires the use of radio frequency (RF) connectors to connect the harnesses inside and outside the cabin. However, if effective installation and securing measures are not taken for the RF connectors at the firewall, during vehicle movement (especially on bumpy roads or under rapid acceleration / deceleration conditions), the connectors will continuously collide and rub against the firewall metal plate and surrounding pipes, harness brackets, and other parts, causing motion interference. This unrestrained motion not only disrupts the mating stability of the RF connectors, leading to attenuation and packet loss in the digital video signal, directly affecting the reliability of safety function signal transmission; simultaneously, the continuous mechanical noise generated by the collisions will be transmitted into the cabin through the firewall structure, becoming a significant source of cabin noise and reducing the comfort of the occupants. Summary of the Invention

[0004] To address the problems existing in the prior art, this utility model provides a commercial vehicle firewall RF connector fixing device and vehicle, which effectively solves the problem of unreliable fixing of RF connectors, improves the stability of digital video line signal transmission and reduces noise in the driver's cabin.

[0005] To achieve the above objectives, this utility model employs a commercial vehicle firewall radio frequency connector fixing device, comprising a fixing component one and a fixing component two for installation in conjunction with a commercial vehicle firewall.

[0006] Both the first and second fixing components are square box structures with open tops and open fronts. Each of the square box structures has a rear limiting hole on its rear end wall for limiting the rear end of the RF connector. The first fixing component and the second fixing component are detachably connected and together form at least one mounting cavity for accommodating and positioning the RF connector.

[0007] Inside the internal cavity of the fixing component, a front limiting plate, a middle limiting plate, and a rear limiting plate are arranged sequentially from front to back. A cross-shaped support frame is fixedly installed between the front limiting plate and the middle limiting plate, and a bottom limiting plate for supporting and limiting the bottom of the RF connector is fixedly connected to the top of the support frame.

[0008] Inside the internal cavity of the second fixing member, a front limiting plate, a middle limiting plate, and a rear limiting plate are arranged sequentially from front to back. Three upright plates are fixedly connected to the rear surface of the front limiting plate. The three upright plates and the front limiting plate form a limiting groove for limiting the middle part of the RF connector.

[0009] Each of the front, middle, and rear limiting plates is U-shaped, and each limiting plate works together to clamp and limit the positioning RF connector.

[0010] In some embodiments, at least two male buckles are integrally formed on the outer side wall of the first fixing member, and a female buckle corresponding to and adapted to the male buckles is provided on the outer side wall of the second fixing member; the male buckle can be embedded in the female buckle to form a fastening connection, so as to realize the detachable fastening connection between the first fixing member and the second fixing member.

[0011] In some embodiments, a slot structure for auxiliary positioning is provided between the first fixing member and the second fixing member; the slot structure includes a protrusion and a groove, wherein the protrusion is integrally formed on the side wall of the first fixing member, and the groove is correspondingly formed on the side wall of the second fixing member; when the first fixing member and the second fixing member are assembled, the protrusion is embedded in the groove to form a snap-fit ​​engagement.

[0012] In some embodiments, a limiting platform 1 is integrally formed on the outer wall of the fixing member 1; a limiting platform 2 and a limiting platform 3 are integrally formed on the outer wall of the fixing member 2, and the limiting platform 2 and the limiting platform 3 are respectively disposed in different areas of the outer wall of the fixing member 2.

[0013] In some embodiments, both the first and second fixing members are provided with locking plates on their outer walls, which are used to fix them in any standard bayonet on the RF connector mounting plate.

[0014] In some embodiments, a first partition is fixedly installed inside the internal cavity of the first fixing member, which divides the internal cavity of the first fixing member into two first sub-cavities with the same structure and symmetrical distribution; a second partition is fixedly installed inside the internal cavity of the second fixing member, which divides the internal cavity of the second fixing member into two second sub-cavities with the same structure and symmetrical distribution; when the first fixing member and the second fixing member are spliced ​​together, the first partition and the second partition are collinearly aligned, so that the mounting cavity formed by the first fixing member and the second fixing member is correspondingly divided into two independent sub-mounting cavities, and the two sub-mounting cavities are respectively used to install one RF connector, so as to realize the synchronous assembly and positioning of the dual-layer RF connector.

[0015] In some embodiments, the RF connector is a male RF connector, and a female RF connector is mated to the male RF connector.

[0016] A second aspect of this utility model also provides a vehicle on which the aforementioned commercial vehicle firewall RF connector fixing device is installed.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] (1) By using the detachable connection design of fastener one and fastener two, combined with the square box structure with open top and open front, not only is the assembly and disassembly of components convenient, but the process complexity of wire harness processing is also greatly reduced. At the same time, it provides convenience for on-site assembly operations and effectively improves assembly efficiency.

[0019] (2) With the help of multiple limiting structures such as the U-shaped front / middle / rear limiting plates, cross-shaped support frame, bottom limiting plate and limiting groove inside the fastener, and the limiting effect of the rear limiting hole on the rear end of the RF connector, the RF connector can be reliably fixed on the firewall, thereby significantly improving the stability of digital video line signal transmission and reducing noise sources in the driver's cab; and through the design of enclosing to form at least one mounting cavity, it can meet the functional requirements of configuring one or more digital cameras outside the vehicle driver's cab, and has a wide range of application scenarios. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the first structure of this utility model;

[0022] Figure 2 for Figure 1 Schematic diagram of the structure of fastener 1 Figure 1 ;

[0023] Figure 3 for Figure 1 Schematic diagram of the structure of fastener two Figure 1 ;

[0024] Figure 4 This is a schematic diagram of the second structure of this utility model;

[0025] Figure 5 for Figure 4 Schematic diagram of the structure of fastener 1 Figure 2 ;

[0026] Figure 6 for Figure 4 Schematic diagram of the structure of fastener two Figure 2 ;

[0027] Figure 7 This is a schematic diagram illustrating the use of the first structure of this utility model;

[0028] In the diagram: 1. Fixing component one, 2. Fixing component two, 3. Male buckle, 4. Limiting platform one, 5. Female buckle, 6. Limiting platform two, 7. Limiting platform three, 8. Locking plate, 9. Rear limiting plate one, 10. Middle limiting plate one, 11. Front limiting plate one, 12. Support frame, 13. Bottom limiting plate, 14. Front mounting port one, 15. Rear limiting hole, 16. Rear limiting plate two, 17. Middle limiting plate two, 18. Front limiting plate two, 19. Limiting groove, 20. Front mounting port two, 21. Protrusion, 22. Groove, 23. First partition, 24. Second partition, 25. Female RF connector, 26. Male RF connector, 27. RF connector mounting plate. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this application will be described in detail below through specific embodiments. It should be understood that the embodiments of this application and the specific features in the embodiments are detailed descriptions of the technical solutions of this application, rather than limitations on the technical solutions of this application. In the absence of conflict, the embodiments of this application and the technical features in the embodiments can be combined with each other.

[0030] In the description of this utility model, it should be understood that the terms "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0031] like Figures 1-7 As shown, a commercial vehicle firewall radio frequency connector fixing device includes a fixing part 1 and a fixing part 2 for installation in conjunction with a commercial vehicle firewall.

[0032] Both the first fixing member 1 and the second fixing member 2 are square box structures with open tops and open fronts. The front opening of the first fixing member 1 forms a front mounting port 14, and the front opening of the second fixing member 2 forms a front mounting port 20. The opening size of the front mounting port 14 and the front mounting port 20 are adapted to the outer diameter of the front of the RF connector, allowing the RF connector to pass into the cavity horizontally. The rear end walls of the two square box structures are respectively provided with rear limiting holes 15. The diameter of the rear limiting holes 15 is adapted to the rear end of the RF connector, which is used to radially limit the rear end of the RF connector and allow it to partially pass through. The first fixing member 1 and the second fixing member 2 are detachably connected by a snap-fit ​​structure. After they are connected, the front mounting port 14 and the front mounting port 20 are spliced ​​to form a complete front entrance, and at the same time enclose at least one mounting cavity. The inner contour of the mounting cavity is adapted to the outer contour of the RF connector, which is used to accommodate and position the RF connector.

[0033] Inside the internal cavity of the fixing component 1, a front limiting plate 11, a middle limiting plate 10, and a rear limiting plate 9 are arranged sequentially from front to back and perpendicular to the bottom surface of the cavity. The spacing between two adjacent limiting plates matches the length of the corresponding segment of the RF connector, forming a segmented axial limiting. A cross-shaped support frame 12 is vertically fixed between the front limiting plate 11 and the middle limiting plate 10. A bottom limiting plate 13 is fixedly connected to the top of the support frame 12. The upper surface of the bottom limiting plate 13 fits against the bottom contour of the RF connector, which is used to support the bottom of the RF connector and limit its vertical displacement.

[0034] Inside the internal cavity of the second fixing member 2, a front limiting plate 18, a middle limiting plate 17, and a rear limiting plate 16 are arranged sequentially from front to back and perpendicular to the bottom surface of the cavity. The spacing between two adjacent limiting plates matches the length of the corresponding segment of the RF connector and forms a symmetrical clamping structure with the limiting plates of the first fixing member 1. Three upright plates are fixed on the rear surface of the second front limiting plate 18. The three upright plates and the second front limiting plate 18 enclose a limiting groove 19. The groove shape of the limiting groove 19 is adapted to the shape of the middle part of the RF connector and is used to form a circumferential limit on the middle part of the RF connector.

[0035] The front limiting plate 11, middle limiting plate 10, rear limiting plate 9, front limiting plate 18, middle limiting plate 17, and rear limiting plate 16 are all U-shaped plate structures. The openings of each U-shaped plate face the center of the mounting cavity (RF connector direction). The U-shaped openings of the upper limiting plates of the fixing component 1 and fixing component 2 correspond to each other, and work together to form a multi-segment clamping and limiting of the RF connector, restricting its radial sway.

[0036] In some embodiments, such as Figures 1-3 As shown, at least two male buckles 3 are integrally formed on the outer wall of the first fixing member 1, and each male buckle 3 is evenly spaced along the splicing edge of the first fixing member 1; the outer wall of the second fixing member 2 is provided with female buckles 5 in the same number and position as the male buckles 3, and the inner contour of the female buckle 5 is adapted to the outer contour of the male buckle 3; the end of the male buckle 3 is provided with an elastic block protruding outward, and the inner wall of the female buckle 5 is provided with an annular groove adapted to the elastic block; when the first fixing member 1 and the second fixing member 2 are connected, the male buckle 3 can be embedded in the female buckle 5, and a fastening connection is formed by the engagement of the elastic block and the annular groove, so as to realize the detachable fixed connection between the two.

[0037] In the snap-fit ​​state, the splicing surfaces of fastener 1 and fastener 2 fit tightly together, ensuring a smooth transition of the inner wall of the mounting cavity formed by the two and no step misalignment, thereby maintaining the structural stability of the mounting cavity and the positioning accuracy of the RF connector.

[0038] In some embodiments, such as Figures 1-3 As shown, a slot structure for auxiliary positioning is provided between the first fixing member 1 and the second fixing member 2; the slot structure consists of a protrusion 21 and a groove 22, wherein the protrusion 21 is integrally formed on the splicing side wall of the first fixing member 1, and the groove 22 is correspondingly opened on the splicing side wall of the second fixing member 2, and the cross-sectional shape of the protrusion 21 is adapted to the groove shape of the groove 22.

[0039] When fastener 1 and fastener 2 are assembled, the protrusion 21 is embedded in the groove 22 to form a precise snap-fit. By limiting the relative displacement of fastener 1 and fastener 2 in the direction perpendicular to the splicing, the male buckle 3 and female buckle 5 are quickly aligned and fastened, while enhancing the overall structural integrity after assembly.

[0040] In some embodiments, such as Figure 1As shown, a limiting platform 4 is integrally formed on the outer wall of the fixing component 1. The limiting platform 4 extends along the height direction of the fixing component 1, and its end face is parallel to the mounting surface of the commercial vehicle firewall. A limiting platform 6 and a limiting platform 7 are integrally formed on the outer wall of the fixing component 2. The limiting platform 6 is set along the top edge of the fixing component 2, and the limiting platform 7 is set along the side edge of the fixing component 2. They are located in different areas of the outer wall of the fixing component 2, and their end faces are parallel to the firewall mounting surface. When the fixing device is assembled with the firewall, the end faces of the limiting platform 4, the limiting platform 6, and the limiting platform 7 are in contact with the firewall surface to form a support and positioning, restricting the displacement of the fixing device in the direction perpendicular to the firewall, while ensuring that the mounting cavity is coaxially aligned with the preset mounting hole of the firewall.

[0041] In some embodiments, such as Figure 1 , Figure 4 As shown, locking plates 8 are integrally formed on the outer walls of both the first fixing member 1 and the second fixing member 2. The locking plates 8 have an elastic cantilever structure, and their free ends are provided with outwardly protruding clips. The cross-sectional dimensions of the clips are adapted to the diameter of the standard slot on the RF connector mounting plate 27.

[0042] When the fixing device is assembled with the RF connector mounting plate 27, the locking piece 8 can be inserted into the standard bayonet of the mounting plate to ensure the connection strength of the fixing device on the mounting plate; the locking piece 8 is compatible with various standard bayonet sizes on the mounting plate, and the appropriate bayonet position can be selected for fixing according to actual installation requirements.

[0043] In some embodiments, such as Figures 4-6 As shown, a first partition 23 is vertically fixed inside the internal cavity of the fixing member 1. The first partition 23 is arranged along the central axis of the fixing member 1, dividing its internal cavity into two first sub-cavities with the same structure and symmetrical distribution. The internal cavity size of each first sub-cavity is adapted to the corresponding part of a single RF connector.

[0044] A second partition 24 is vertically fixed inside the internal cavity of the second fixing member 2. The second partition 24 is arranged along the central axis of the second fixing member 2, dividing its internal cavity into two second sub-cavities with the same structure and symmetrical distribution. The internal cavity size of each second sub-cavity is adapted to the corresponding part of a single RF connector.

[0045] When fastener 1 and fastener 2 are spliced ​​together, the first partition 23 and the second partition 24 are aligned coaxially to form a complete partition structure, which synchronously divides the mounting cavity formed by the two into two independent and parallel sub-mounting cavities. The spacing between the two sub-mounting cavities is adapted to the side-by-side installation requirements of the RF connectors, and each can independently accommodate and position one RF connector, realizing the synchronous assembly and precise positioning of the double-layer RF connectors, and there is no mutual interference between the two connectors.

[0046] In some embodiments, such as Figure 7 As shown, the RF connector adopts a male-female mating structure, wherein the male RF connector 26 with pins is installed in the fixing device, and the female RF connector 25 with sockets is connected to the male end.

[0047] The pin array of the male RF connector 26 corresponds one-to-one with the socket array of the female RF connector 25. During mating, precise docking is achieved through a positioning and guiding structure, and after docking, a snap-fit ​​structure forms an anti-dislodgement and fixation, ensuring the stability of signal transmission. The female RF connector 25 can be inserted and removed along the axial direction, which facilitates subsequent wire harness maintenance and repair operations.

[0048] Finally, in a second aspect, this utility model also provides a vehicle in which the aforementioned commercial vehicle firewall RF connector fixing device is installed at the firewall of the driver's cab.

[0049] The fixing device forms a stable connection with the radio frequency connector mounting plate 27 of the vehicle firewall through the locking piece 8. The mounting cavity formed by the locking piece 8 is fixed with a male radio frequency connector 26 that is connected to the external digital camera of the vehicle. The male radio frequency connector 26 and the female radio frequency connector 25 that penetrates into the driver's cab are mated together to form a transmission channel for digital video signals.

[0050] This fixing device is adapted to the functional requirements of installing one or more digital cameras outside the vehicle's cab. Depending on the number of cameras, a double-layer structure fixing device including a first partition 23 and a second partition 24, or a single-layer structure fixing device without partitions, or a combination of multiple fixing devices can be used to meet the configuration requirements of different vehicle models.

[0051] The usage process of the above-mentioned commercial vehicle firewall RF connector mounting device:

[0052] (1) Assembly preparation: Based on the number of RF connectors to be installed on the vehicle, select the corresponding structure of fastener 1 and fastener 2 (select the no-partition type for single connectors, and the double-layer type with first partition 23 and second partition 24 for double connectors), and prepare male RF connector 26, female RF connector 25 and RF connector mounting plate 27.

[0053] (2) Fixing component splicing: Place the male RF connector 26 into the cavity (or first sub-cavity) of fixing component 1, and initially position it by the front limiting plate 11, the middle limiting plate 10, the rear limiting plate 9 and the bottom limiting plate 13; then align the splicing edge of fixing component 1 and fixing component 2, so that the protrusion 21 is embedded into the groove 22 for auxiliary positioning, press the two until the male buckle 3 is embedded into the female buckle 5 to form a fastening, at this time the first partition plate 23 and the second partition plate 24 are collinearly aligned (double layer), forming a sub-mounting cavity to firmly clamp the connector;

[0054] (3) Fixing the device: Align the assembled fixing device with the preset position of the firewall in the driver's cab (i.e., the standard bayonet of the RF connector mounting plate 27), so that the first limiting platform 4, the second limiting platform 6, and the third limiting platform 7 fit against the surface of the bayonet, and insert the locking piece 8 into the standard bayonet of the RF connector mounting plate 27 and clamp it with the locking head to complete the installation of the fixing device and the vehicle.

[0055] (4) Connector mating: Insert the female RF connector 25 from the cab and mate it with the male RF connector 26 in the fixed device. The positioning guide structure ensures that the pins and sockets are precisely matched until the buckle is locked to prevent detachment and form a digital video signal transmission channel, thus completing the overall usage process.

[0056] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features found in other embodiments but not others, combinations of features from different embodiments are also within the scope of protection of this utility model and form different embodiments. For example, in the embodiments described above, those skilled in the art can use them in combination based on known technical solutions and the technical problems to be solved by this application.

Claims

1. A commercial vehicle firewall radio frequency connector securing device characterized by, Includes two fasteners, one for installation in conjunction with a commercial vehicle firewall; Both the first and second fixing components are square box structures with open tops and open fronts. Each of the square box structures has a rear limiting hole on its rear end wall for limiting the rear end of the RF connector. The first fixing component and the second fixing component are detachably connected and together form at least one mounting cavity for accommodating and positioning the RF connector. Inside the internal cavity of the fixing component, a front limiting plate, a middle limiting plate, and a rear limiting plate are arranged sequentially from front to back. A cross-shaped support frame is fixedly installed between the front limiting plate and the middle limiting plate, and a bottom limiting plate for supporting and limiting the bottom of the RF connector is fixedly connected to the top of the support frame. Inside the internal cavity of the second fixing member, a front limiting plate, a middle limiting plate, and a rear limiting plate are arranged sequentially from front to back. Three upright plates are fixedly connected to the rear surface of the front limiting plate. The three upright plates and the front limiting plate form a limiting groove for limiting the middle part of the RF connector. Each of the front, middle, and rear limiting plates is U-shaped, and each limiting plate works together to clamp and limit the positioning RF connector.

2. A commercial vehicle firewall radio frequency connector securing device according to claim 1, wherein, At least two male buckles are integrally formed on the outer side wall of the first fastener, and a female buckle corresponding to and adapted to the first male buckle is provided on the outer side wall of the second fastener; the male buckle can be inserted into the female buckle to form a fastening connection, so as to realize the detachable connection between the first fastener and the second fastener.

3. A commercial vehicle firewall radio frequency connector securing device according to claim 1, wherein, A slot structure for auxiliary positioning is provided between the first fixing member and the second fixing member; The slot structure includes a protrusion and a groove, wherein the protrusion is integrally formed on the side wall of the first fixing member, and the groove is correspondingly formed on the side wall of the second fixing member; when the first fixing member and the second fixing member are assembled, the protrusion is embedded in the groove to form a snap-fit ​​engagement.

4. A commercial vehicle firewall radio frequency connector securing device according to claim 1, wherein, A limiting platform is integrally formed on the outer wall of the fixing component; The outer wall of the second fixing member is integrally formed with a limiting platform 2 and a limiting platform 3, and the limiting platform 2 and the limiting platform 3 are respectively disposed in different areas of the outer wall of the second fixing member.

5. A commercial vehicle firewall radio frequency connector securing device according to claim 1, wherein, Both the first and second fixing components have locking tabs on their outer walls, which are used to fix them in any standard bayonet on the RF connector mounting plate.

6. A commercial vehicle firewall radio frequency connector securing device according to claim 1, wherein, A first partition is fixedly installed inside the internal cavity of the first fixing member, which divides the internal cavity of the first fixing member into two first sub-cavities with the same structure and symmetrical distribution; a second partition is fixedly installed inside the internal cavity of the second fixing member, which divides the internal cavity of the second fixing member into two second sub-cavities with the same structure and symmetrical distribution. When the first and second fixing components are joined together, the first partition and the second partition are aligned collinearly, so that the mounting cavity formed by the first and second fixing components is divided into two independent sub-mounting cavities. The two sub-mounting cavities are used to install one RF connector, so as to realize the synchronous assembly and positioning of the double-layer RF connector.

7. A commercial vehicle firewall radio frequency connector securing device according to any one of claims 1-6, characterized in that, The radio frequency connector is a male radio frequency connector, and a female radio frequency connector is connected to the male radio frequency connector.

8. A vehicle characterized by comprising: The vehicle is equipped with a commercial vehicle firewall radio frequency connector fixing device as described in any one of claims 1-7.

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