Automobile OBD interface protection device
By designing an OBD interface protection device with a sliding connecting plate and a receiving bracket equipped with a drive mechanism, the problem of connector damage due to reverse insertion during the insertion process was solved, and the automatic opening and closing of the cover was realized, extending the service life of the OBD interface.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-24
AI Technical Summary
The OBD interface is easily damaged during the plugging process due to incorrect plug orientation or excessive force, and lacks an auxiliary plugging reference structure, which can lead to damage to the protective shell.
A protective device for an automotive OBD interface was designed. The device uses a support frame to drive the drive mechanism to rotate, causing the sliding connecting plate to slide within the receiving groove, thereby opening and closing the cover. It also provides an auxiliary insertion reference structure to prevent the connector from being inserted incorrectly and damaging the outer shell.
This design ensures that the cover remains open when the OBD connector is plugged in, preventing damage from incorrect insertion and extending its service life.
Smart Images

Figure CN224036708U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile electronic accessories, especially relates to a car OBD interface protection device. BACKGROUND
[0002] On-Board Diagnostics (OBD) is an important part of the automotive electronic control system, which was originally designed to monitor whether the vehicle emissions comply with environmental regulations. With the wide application of electronic control system (ECU) in automobiles, OBD interface has expanded from single emission monitoring to the "health diagnosis window" of the entire vehicle electronic system, covering engine, transmission, ABS, airbag and other modules; the rise of telematics and remote diagnosis technology makes OBD interface the key entry for vehicle data collection, supporting fleet management, insurance UBI (based on use), fault warning and other applications; the popularity of electric vehicles (EV) and hybrid electric vehicles (HEV) has put forward new demands for OBD systems, such as monitoring battery management system (BMS), motor control unit (MCU), etc. In addition, the OBD of new energy vehicles needs to be compatible with high-voltage system diagnosis and meet the new communication protocols such as ISO15118.
[0003] There are mainly two ways to fix the OBD interface, one is to fix it directly on the car body through sheet metal, bolts and other accessories, the other is to fix it on the car body through a straight plug-in hanging structure; however, since the port of the OBD interface is directly exposed, it is easy to be disturbed by external dust or dirt, and due to the lack of necessary auxiliary functions, the OBD interface is easy to cause the pins in the interface to bend when it is in the plug-in mode due to incorrect plug-in direction of the external plug or excessive force. Chinese patent No. 2017201606520 discloses an OBD interface structure, which uses a sheath shell as an installation carrier for the interface to assemble it to the vehicle body, and uses an outer cover to protect the pins exposed on the outer seat to avoid being disturbed by external dust or dirt. The sheath shell and the pin fixing seat have a stable plug-in assembly relationship, which can avoid the fixing seat from shaking or deviating under external force. However, there are still the following defects: in actual application, the installation position of the OBD interface is on the vertical side wall of the car, and the outer cover is hinged with the sheath shell. If you want to plug in the OBD connector, you need to hold the outer cover open with the other hand all the time. Without auxiliary plug-in reference structure, it is easy to plug in the wrong way and damage the sheath shell. SUMMARY
[0004] The utility model discloses a purpose lies in providing a kind of automobile OBD interface protection device, when needing to plug OBD connector, it can be conveniently opened protective cover and always keep open state, and there is auxiliary plug-in reference structure on outer shell, avoid joint plug-in reverse to cause outer shell damage, prolong service life, to solve the problem in prior art.
[0005] To achieve the above object, the utility model is using following technical scheme implementation:
[0006] A kind of automobile OBD interface protection device, including outer shell and the inner socket being arranged in outer shell, the upper end of the outer shell is equipped with accommodating chute, the sliding connecting plate is equipped in the accommodating chute, the interface of the outer shell is equipped with protective cover, the protective cover is rotatably connected with sliding connecting plate, the outer shell is equipped with the drive mechanism suitable for driving sliding connecting plate, the drive mechanism is connected with receiving frame, the receiving frame drives drive mechanism to rotate, makes sliding connecting plate slide in accommodating chute, the receiving frame is slidably connected with outer shell.
[0007] Principle as follows: when needing to plug OBD connector, pull out receiving frame, receiving frame drives drive mechanism to rotate, further drive sliding connecting plate to slide in the direction away from OBD interface, to drive protective cover to slide into accommodating chute, further open protective cover and accommodate hidden protective cover, make OBD interface always keep open state, simultaneously, receiving frame can support OBD connector, avoid joint plug-in reverse to cause outer shell damage, after pulling out OBD connector, only need to push receiving frame drive mechanism reverse rotation, drive sliding connecting plate to slide in the direction of OBD interface, to drive protective cover to slide out accommodating chute, further close protective cover.
[0008] Further, the drive mechanism includes the upper slide slot symmetrically arranged on the both sides of the outer shell, the two rotating shafts are rotatably connected on one side of the upper slide slot respectively, the two driving gears are arranged on the rotating shafts respectively, and the two driven gears are coaxially rotatable with the driving gears, a plurality of teeth are formed on the two side walls of the sliding connecting plate, and the sliding connecting plate is engaged with the driven gears on the both sides of the outer shell respectively.
[0009] Further, the receiving frame includes the supporting frame arranged on the interface outside of the outer shell, the two upper slide rods slidably connected with the upper slide slot and the lower slide rod arranged below the upper slide rod, the lower slide rod and the upper slide rod are parallel to the axis direction of the outer shell, the supporting frame is perpendicular to the axis direction of the outer shell, and the supporting frame, the upper slide rod and the lower slide rod are integrally formed.
[0010] Further, a plurality of teeth are formed on one side of the upper slide rod corresponding to the outer shell, and the upper slide rod is engaged with the driving gear.
[0011] Further, the number of the lower slide rod is more than one.
[0012] Furthermore, a sealing strip is provided on the edge of the cover corresponding to the inner seat, and a protrusion is provided at the lower end of the cover. A groove suitable for accommodating a magnet is provided on the inner side of the protrusion. A magnet is provided on the lower side of the interface of the outer shell corresponding to the groove. The outer shell and the cover are detachably connected by magnetic attraction.
[0013] The beneficial effects of this utility model are as follows: This utility model drives the drive mechanism to rotate through the receiving frame, so that the sliding connecting plate slides in the receiving groove, thereby driving the cover to slide into or out of the receiving groove, realizing the opening and closing of the cover. When it is necessary to insert the OBD connector, the cover can be opened easily and always kept in the open state. In addition, there is an auxiliary insertion reference structure on the outer shell to avoid damage to the outer shell caused by the connector being inserted in reverse, thus extending the service life. Attached Figure Description
[0014] Figure 1 An overall structural diagram of an automotive OBD interface protection device provided by this utility model;
[0015] Figure 2 The overall structural diagram of the outer protective shell provided by this utility model;
[0016] Figure 3 for Figure 2 Enlarged view of the structure of section A in the middle;
[0017] Figure 4 The overall structural diagram of the support frame provided by this utility model;
[0018] Figure 5 for Figure 4 Enlarged view of the structure of section B;
[0019] Figure 6 An assembly structure diagram of the cover and sliding connecting plate provided by this utility model;
[0020] Figure 7 This is a state structure diagram of one embodiment of an automotive OBD interface protection device.
[0021] The diagram shows the following labels: 100, outer casing; 110, receiving groove; 120, lower groove; 200, inner seat; 300, sliding connecting plate; 400, cover; 410, protrusion; 411, groove; 500, drive mechanism; 510, upper groove; 520, rotating shaft; 530, driving gear; 540, driven gear; 600, support frame; 610, support bracket; 620, upper slide rod; 630, lower slide rod; 700, sealing strip. Detailed Implementation
[0022] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying 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 limitations on this utility model.
[0024] The following is an example:
[0025] like Figures 1 to 3 The illustrated automotive OBD interface protection device includes an outer housing 100 and an inner connector 200 disposed within the outer housing 100. The upper end of the outer housing 100 is provided with a receiving groove 110, within which a sliding connecting plate 300 is disposed. A cover 400 is provided at the interface of the outer housing 100, and the cover 400 is rotatably connected to the sliding connecting plate 300. A drive mechanism 500 suitable for driving the sliding connecting plate 300 is mounted on the outer housing 100. The drive mechanism 500 is connected to a support frame 600, which drives the drive mechanism 500 to rotate, causing the sliding connecting plate 300 to slide within the receiving groove 110. The outer casing 100 is slidably connected to the drive mechanism 500. The drive mechanism 500 includes upper slide grooves 510 symmetrically arranged on both sides of the outer casing 100, two rotating shafts 520 rotatably connected to one side of the upper slide grooves 510, two driving gears 530 respectively arranged on the rotating shafts 520, and two driven gears 540 coaxially rotating with the driving gears 530. Several teeth are provided on the two side walls symmetrically arranged along the length direction of the sliding connecting plate 300. The sliding connecting plate 300 meshes with the driven gears 540 on both sides of the outer casing 100. The tooth tip circle diameter of the driving gear 530 is greater than or equal to the tooth tip circle diameter of the driven gear 540.
[0026] In addition, in the actual production design of the outer casing 100, the end face of the OBD interface on the outer casing 100 and the bottom of the receiving groove 110 are connected by an arc-shaped connection structure. Thus, during the process of the OBD interface going from the closed state to the open state, it is ensured that the sliding connecting plate 300 can smoothly pull the cover 400 into the receiving groove 110.
[0027] As the technical scheme of the embodiment, further Figure 4 The receiving frame 600 shown in the figure includes a receiving bracket 610 provided outside the interface of the outer shell 100, two upper sliding rods 620 respectively slidingly connected with the upper sliding groove 510, and a lower sliding rod 630 provided below the upper sliding rod 620. The number of the lower sliding rod 630 is two. The lower sliding rod 630 and the upper sliding rod 620 are parallel to the axis direction of the outer shell 100. The receiving bracket 610 is perpendicular to the axis direction of the outer shell 100. The receiving bracket 610, the upper sliding rod 620, and the lower sliding rod 630 are integrally formed. In addition, a lower sliding groove 120 is provided on the outer shell 100. The lower sliding groove 120 is provided below the upper sliding groove 510 and corresponds to the position of the lower sliding rod 630. The lower sliding rod 630 slides in the lower sliding groove 120. The receiving bracket 610 is a U-shaped bracket. The contact surface of the receiving bracket 610 for supporting the OBD connector is a special-shaped surface, which can be designed according to the orthographic projection contour shape of the OBD connector. A plurality of teeth are provided on one side of the outer shell 100 corresponding to the upper sliding rod 620. The upper sliding rod 620 is engaged with the driving gear 530. The length of the teeth on the inner side wall of the upper sliding rod 620 is less than / equal to the length of the teeth on the two side walls of the sliding connecting plate 300. Specifically, the diameter ratio of the addendum circle of the driving gear 530 to the driven gear 540 is 2:1. The length of the teeth on the inner side wall of the upper sliding rod 620 is half of the length of the teeth on the two side walls of the sliding connecting plate 300. The diameter ratio of the addendum circle of the driving gear 530 to the driven gear 540 is 1:1. The length of the teeth on the inner side wall of the upper sliding rod 620 is equal to the length of the teeth on the two side walls of the sliding connecting plate 300.
[0028] As the technical scheme of the embodiment, further Figure 6 The sealing strip 700 is attached to the edge of the cover 400 corresponding to one side of the inner socket 200 by strong glue. The lower end of the cover 400 is provided with a protruding portion 410. The inner side of the protruding portion 410 is provided with a groove 411 suitable for pressing a magnet. The lower side of the OBD interface of the outer shell 100 is attached to the groove 411 by strong glue. The magnet attached to the groove 411 has a magnetic pole opposite to that of the magnet of the protruding portion 410. The outer shell 100 and the cover 400 are detachably connected by magnetic attraction.
[0029] When the OBD connector needs to be inserted, as Figure 7As shown, the staff picks up the protrusion 410, separates the mutually attracted magnets, pulls out the supporting frame 600 outward, drives the driving gear 530 to rotate counterclockwise, drives the driven gear 540 to rotate counterclockwise, drives the sliding connecting plate 300 to slide away from the OBD interface, drives the cover 400 to slide into the containing chute 110, opens the cover 400, hides the cover 400 from the OBD interface, and keeps the OBD interface open at all times. Meanwhile, the supporting frame 600 can support the OBD connector to avoid damage to the outer shell 100 caused by reverse insertion of the connector.
[0030] After pulling out the OBD connector, only need to push the supporting frame 600, the supporting frame 600 drives the driving gear 530 to rotate clockwise, the driven gear 540 rotates clockwise, and the sliding connecting plate 300 slides towards the OBD interface, thereby pushing the cover 400 out of the containing chute 110. When the cover 400 completely slides out of the containing chute 110, the cover 400 is rotated 90° by gravity to cover the OBD interface, and the cover 400 is closed.
[0031] It should be noted that, as shown in Figure 4 , Figure 5 As shown, when the OBD interface is in the closed state, a sliding buffer groove is formed on the upper slide rod 620 corresponding to the driving gear 530 to ensure that the supporting frame 600 does not drive the driving mechanism 500 to rotate when pulled out, thereby opening the cover 400, preventing the cover 400 from being stuck with the supporting frame 610, and ensuring that the supporting frame 610 does not block the cover 400 from closing with the OBD interface when the cover 400 is closed.
[0032] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application, any reference signs in the claims should not be regarded as limiting the claims.
[0033] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.
Claims
1. A protective device for an automotive OBD interface, comprising an outer housing and an inner connector disposed within the outer housing, characterized in that: The upper end of the outer shell is provided with a receiving groove, and a sliding connecting plate is provided in the receiving groove. A cover is provided at the interface of the outer shell, and the cover is rotatably connected to the sliding connecting plate. The outer shell is provided with a driving mechanism suitable for driving the sliding connecting plate. The driving mechanism is connected to a receiving frame. The receiving frame drives the driving mechanism to rotate, so that the sliding connecting plate slides in the receiving groove. The receiving frame is slidably connected to the outer shell.
2. The automotive OBD interface protection device according to claim 1, characterized in that: The drive mechanism includes upper slide grooves symmetrically arranged on both sides of the outer shell, two rotating shafts rotatably connected to one side of the upper slide grooves, two driving gears respectively arranged on the rotating shafts, and two driven gears rotating coaxially with the driving gears. Several teeth are provided on the two side walls symmetrically arranged along the length direction of the sliding connecting plate, and the sliding connecting plate meshes with the driven gears on both sides of the outer shell.
3. The automotive OBD interface protection device according to claim 2, characterized in that: The receiving frame includes a support frame located outside the interface of the outer shell, two upper sliding rods slidably connected to the upper slide groove, and a lower sliding rod located below the upper sliding rods. The lower sliding rod and the upper sliding rod are parallel to the axial direction of the outer shell, and the support frame is perpendicular to the axial direction of the outer shell. The support frame, the upper sliding rods, and the lower sliding rod are integrally formed.
4. The automotive OBD interface protection device according to claim 3, characterized in that: The upper slide rod has several teeth on one side corresponding to the outer shell, and the upper slide rod meshes with the drive gear.
5. The automotive OBD interface protection device according to claim 3, characterized in that: The number of sliding levers is one or more.
6. The automotive OBD interface protection device according to claim 1, characterized in that: A sealing strip is provided on the edge of the cover corresponding to the inner seat. A protrusion is provided at the lower end of the cover. A groove suitable for accommodating a magnet is provided on the inner side of the protrusion. A magnet is provided on the lower side of the interface of the outer shell corresponding to the groove. The outer shell and the cover are detachably connected by magnetic attraction.