An automobile instrument filter cable connector

By designing a cable connector for automotive instrument filters, the problem of unstable connection between the filter and the instrument body in existing technologies has been solved, achieving stable signal transmission and convenient maintenance.

CN224545895UActive Publication Date: 2026-07-24HEFEI ZHETUOWAN ELECTRONIC TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEFEI ZHETUOWAN ELECTRONIC TECHNOLOGY CO LTD
Filing Date
2025-07-14
Publication Date
2026-07-24

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Abstract

The utility model discloses a kind of automobile instrument filter cable plug connectors, including the cover plate of installation in the backboard side of automobile instrument, first protrusion is provided inward to cover plate, inside forms accommodating groove, and is equipped with filter, filter is fixed to a PCB board, and first male row and second male row are respectively installed in the upper and lower end side of PCB board;Sealing cover is installed to the outside slot side of accommodating groove corresponding to cover plate, for sealing accommodating groove, female row is provided to the inboard of accommodating groove corresponding to sealing cover, for with second male row butt joint, cable interface is provided to the outside of sealing cover. The cable plug connector of this automobile instrument is overall structure, and accommodating groove is formed by its own recess, for closed installation filter, play good protection effect to filter, and have external cable interface, for the access of various model data line, have built-in interface slot, for the signal connection of internal instrument host part.
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Description

Technical Field

[0001] This utility model belongs to the technical field of automotive instrument cable interface components, and in particular relates to an automotive instrument filter cable connector. Background Technology

[0002] Automotive instrument panels include speedometers, tachometers, oil pressure gauges, coolant temperature gauges, fuel gauges, and charging gauges. Most of these displays are based on sensor data; the sensors interpret changes in the state of the monitored object through the instrument panel. The back of the instrument panel houses a data cable interface for connecting to various detectors. To ensure accurate data transmission, a filter is installed at the data cable interface. This filter effectively cuts off the propagation path of interference signals, preventing electromagnetic interference from affecting the instrument panel.

[0003] The existing automotive instrument panel lacks a dedicated cable connector for filter connection at the rear cover interface location. This results in a lack of an effective and stable interface component between the filter and the instrument panel after installation, which can easily lead to signal interruption issues. Utility Model Content

[0004] The present invention mainly prepares a cable connector for an automotive instrument filter, which is used to enclose and protect the filter, and at the same time establish an effective cable connection interface between the filter and the internal instrument body.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] A car instrument filter cable connector includes a cover plate installed on the back panel of the car instrument panel, the back panel being provided with a mounting groove, and the cover plate being limited and installed in the mounting groove.

[0007] The cover plate has a first protrusion facing inward, which corresponds to the internal receiving groove and a filter is installed thereon. The filter is fixed to a PCB board, which is fixed to the receiving groove. A first male bar and a second male bar are respectively installed on the upper and lower ends of the PCB board.

[0008] The receiving groove is provided with a groove for accommodating the first male outlet interface;

[0009] A sealing cover is installed on the outer side of the receiving groove corresponding to the cover plate to seal the receiving groove. A female busbar is provided on the inner side of the sealing cover corresponding to the receiving groove for docking with the second male busbar. A cable interface is provided on the outer side of the sealing cover.

[0010] Furthermore, a second protrusion is provided inwardly from the first protrusion, and an interface groove is formed inside the second protrusion to accommodate the first male connector. The bottom of the interface groove is an open side and has a first step portion that limits the side of the first male connector. A limiting groove is provided on the open side portion of the interface groove for foolproof setting of the built-in plug portion.

[0011] Furthermore, the PCB board has mounting holes at corresponding corner positions, and positioning posts extend from the bottom of the receiving groove, corresponding one-to-one with the mounting holes. Screw holes are provided along the axis of the positioning posts for fixing the PCB board with bolts. A second step is provided on the opening side of the receiving groove to limit and support the edge of the sealing cover.

[0012] The present invention has the following advantages: the cable connector of the automobile instrument is an integral structure and has a recess to form a receiving groove for enclosed installation of the filter, which plays a good role in protecting the filter. It also has an external cable interface for accessing various types of data cables and an internal interface slot for signal connection of the internal instrument host.

[0013] The internal filter is mounted on the PCB board, which is then fixed in a receiving slot to prevent signal loss due to loosening during later use. The integrated mounting and disassembly structure facilitates maintenance and overall replacement, and ensures stable installation. Signal connection is achieved via male and female busbars, guaranteeing stable signal input. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0015] Figure 1 : Front structural diagram of this utility model.

[0016] Figure 2 : Schematic diagram of the back structure of this utility model.

[0017] Figure 3 : Schematic diagram of the disassembly structure of the sealing cap of this utility model.

[0018] Figure 4 : Schematic diagram of the overall disassembly structure of the filter of this utility model.

[0019] The components represented by each number in the attached diagram are listed below: cover plate 1, first protrusion 11, receiving groove 13, filter 2, PCB board 20, first male busbar 21, second male busbar 22, interface groove 14, sealing cover 3, busbar 31, cable interface 32, second protrusion 12, first step 141, limiting groove 15, mounting hole 23, positioning post 131, and second step 132. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] like Figures 1-3 As shown: A car instrument filter cable connector includes a cover plate 1 installed on the back panel of the car instrument panel. The back panel is provided with a mounting groove, and the cover plate 1 is limited and installed in the mounting groove. The mounting groove is a square shell structure formed by the protrusion of the instrument panel, which is used to connect the inside and outside of the car instrument panel. The cover plate is installed from the inside to the outside.

[0022] The cover plate 1 has a first protrusion 11 facing inward, which corresponds to the internal receiving groove 13 and a filter 2 is installed thereon. The filter 2 is fixed to a PCB board 20, which is fixed to the receiving groove 13. The upper and lower ends of the PCB board 20 are respectively equipped with a first male busbar 21 and a second male busbar 22. The filter assembly is sealed and stored on the outside by a cover, and is fixed to the PCB board by solder. Pins are formed at the upper and lower ends of the PCB board, which serve as the first male busbar and the second male busbar.

[0023] The receiving slot 13 has an interface slot 14 for accommodating the first male pin 21; the interface slot is a rectangular structure slot used to lead out the pins of the first male pin, which corresponds to the female pin on the inside of the car instrument panel for plug-in installation.

[0024] A sealing cover 3 is installed on the outer side of the receiving groove 13 corresponding to the cover plate 1, for sealing the receiving groove 13. A female busbar 31 is provided on the inner side of the sealing cover 3 corresponding to the receiving groove 13 for docking with the second male busbar 22. A cable interface 32 is provided on the outer side of the sealing cover 3. The cable interface is used to connect external sensors.

[0025] The cable connector of this automotive instrument panel is an integral structure, with its own recess forming a receiving groove for enclosed installation of filters, providing excellent protection for the filters. It also has an external cable interface for connecting various types of data cables, and an internal interface slot for signal connection to the internal instrument panel host.

[0026] The internal filter is mounted on the PCB board, which is then fixed in a receiving slot to prevent signal loss due to loosening during later use. The integrated mounting and disassembly structure facilitates maintenance and overall replacement, and ensures stable installation. Signal connection is achieved via male and female busbars, guaranteeing stable signal input.

[0027] like Figure 1 , Figure 4As shown: A second protrusion 12 is provided inwardly from the first protrusion 11. The second protrusion 12 forms an interface groove 14 inside, which is used to accommodate the first male connector 21. The bottom of the interface groove 14 is open and has a first stepped portion 141 that limits the side of the first male connector 21. The open side is used for the introduction of the pin header, which facilitates docking with the plug part inside the instrument. It is generally a female connector structure. The first stepped portion is a side wall structure, which can abut and overlap with the connector seat of the first male connector while limiting the first male connector, so that the interface groove position is well sealed after installation. A limiting groove 15 is provided on the opening side of the interface groove 14 for the foolproof setting of the built-in plug part. The limiting groove has an arc-shaped guide structure from the opening side inward, so that the limiting groove accurately guides the plug part during the insertion process, and the pin header can be precisely positioned and inserted into the wire groove.

[0028] like Figure 3 , Figure 4 As shown: PCB board 20 has mounting holes 23 at corresponding corner positions. Positioning posts 131 extend from the bottom of the receiving groove 13, corresponding one-to-one with the mounting holes 23. Screw holes are provided along the axis of the positioning posts 131 for fixing the PCB board 20 with bolts. This prevents the PCB board from shaking in the receiving groove after it is fully fixed. A second step 132 is provided on the opening side of the receiving groove 13 to limit and support the side of the sealing cover 3. The second step is a sidewall structure; when the sealing cover is installed, the side overlaps with the second step and is fixed and sealed with sealant.

[0029] These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of this utility model, so that those skilled in the art can better understand and utilize this utility model.

Claims

1. A connector for an automotive instrument filter cable, characterized in that: Includes a cover (1) installed on the back panel of the vehicle instrument panel, the back panel is provided with a mounting groove, and the cover (1) is limited to the mounting groove; The cover plate (1) has a first protrusion (11) facing inward, the first protrusion (11) forms a receiving groove (13) corresponding to the interior, and a filter (2) is installed thereon. The filter (2) is fixed to a PCB board (20), the PCB board (20) is fixed to the receiving groove (13), and a first male bar (21) and a second male bar (22) are respectively installed on the upper and lower sides of the PCB board (20). The receiving groove (13) is provided with an interface groove (14) for receiving the first male row (21); The cover plate (1) is equipped with a sealing cover (3) on the outer side of the receiving groove (13) to seal the receiving groove (13). The sealing cover (3) is provided with a female busbar (31) on the inner side of the receiving groove (13) for docking with the second male busbar (22). The sealing cover (3) is provided with a cable interface (32) on the outer side.

2. The automotive instrument filter cable connector according to claim 1, characterized in that: The first protrusion (11) is provided with a second protrusion (12) facing inward. The second protrusion (12) forms an interface groove (14) inside to accommodate the first male row (21). The bottom of the interface groove (14) is an open side and has a first step (141) that limits the side of the first male row (21).

3. The automotive instrument filter cable connector according to claim 2, characterized in that: The interface slot (14) has a limit slot (15) on the opening side for the purpose of preventing the built-in plug from being mistakenly installed.

4. The automotive instrument filter cable connector according to claim 1, characterized in that: The PCB board (20) has mounting holes (23) at the corresponding corner positions. The bottom of the receiving groove (13) leads out a positioning post (131) which corresponds to the mounting hole (23). The positioning post (131) has a screw hole on its axis for fixing the PCB board (20) with bolts.

5. The automotive instrument filter cable connector according to claim 1, characterized in that: The receiving groove (13) is provided with a second step (132) at the opening side position, which is used to limit and support the side of the sealing cover (3).