A porous ceramic piece for connecting an automobile oxygen sensor harness

By designing a magnetic connection and threaded fixing structure for porous ceramic parts, the problem of the ceramic parts' fragility was solved, the resistance to external forces was enhanced, and the stable transmission of electrical signals was ensured.

CN224400735UActive Publication Date: 2026-06-23SHANGHAI SCHMEIER PRECISION CERAMICS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI SCHMEIER PRECISION CERAMICS CO LTD
Filing Date
2025-06-17
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Ceramic components are susceptible to cracks and breakage from external physical impacts, affecting functionality, causing wiring harness malfunctions, and electrical signal transmission problems.

Method used

A porous ceramic component for connecting automotive oxygen sensor wiring harnesses has been designed. It adopts a structure including a first arc-shaped pad, a second arc-shaped pad, a protective sleeve, a magnet layer, and a screw. The ceramic component's resistance to external forces is enhanced through magnetic connection and threaded fixation.

Benefits of technology

It effectively prevents ceramic parts from breaking due to external forces, improves practicality and stability, and ensures the normal transmission of electrical signals.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of automobile oxygen sensor wire harness connection with porous ceramic piece, including ceramic piece body and multiple jacks, multiple jacks are respectively set in the top of ceramic piece body, the end portion of ceramic piece body is fixedly sleeved with two first arc-shaped pads, the top of two first arc-shaped pads is all provided with second arc-shaped pad, the side of two second arc-shaped pads is all provided with protective sleeve, the top of two first arc-shaped pads is all provided with first magnet layer, by being provided with first arc-shaped pad, second arc-shaped pad, protective sleeve, first magnet layer, second magnet layer and positioning strip, two second arc-shaped pads are respectively sleeved in the outer surface of ceramic piece body, since first magnet layer and second magnet layer magnetically connect, two protective sleeves can be wrapped and protected to the outer surface of ceramic piece body, the effect of resisting external force is played to ceramic piece body, ceramic piece body is prevented from breaking under external force, and the practicability of ceramic piece body is improved.
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Description

Technical Field

[0001] This utility model relates to the field of automotive oxygen sensor technology, and in particular to a porous ceramic component for connecting automotive oxygen sensor wiring harnesses. Background Technology

[0002] An oxygen sensor is a device used to detect the oxygen content in engine emissions. It is widely used in automotive emission control systems. Its main function is to help the engine control unit adjust the fuel-air mixture ratio. The working principle of the oxygen sensor is based on an electrochemical reaction: it is usually composed of a ceramic element that reacts with oxygen in the exhaust gas at high temperatures to generate a voltage signal. The porous ceramic component acts as a catalyst and part of the filter to ensure that the vehicle's emissions meet environmental standards and reduce the emission of harmful gases.

[0003] The ceramic component has multiple holes, mainly used to connect to the automotive oxygen sensor wiring harness. Ceramic material is relatively fragile, and external physical impacts may cause cracks and breakage, affecting the function of the ceramic component or even causing malfunctions, thereby damaging the wiring harness and affecting the transmission of electrical signals. Therefore, it is particularly important to design a multi-hole ceramic component for connecting automotive oxygen sensor wiring harnesses. Utility Model Content

[0004] The purpose of this invention is to provide a porous ceramic component for connecting automotive oxygen sensor wiring harnesses, in order to solve the problem mentioned in the background art that external physical impacts may cause cracks and breakage, affecting the function of the ceramic component, or even causing malfunctions, thereby damaging the wiring harness and affecting the transmission of electrical signals.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a porous ceramic component for connecting automotive oxygen sensor wiring harnesses, comprising a ceramic component body and multiple insertion holes, wherein the multiple insertion holes are respectively opened at the top end of the ceramic component body, two first arc-shaped pads are fixedly sleeved at one end of the ceramic component body, a second arc-shaped pad is provided on the top of each of the two first arc-shaped pads, a protective sleeve is provided on one side of each of the two second arc-shaped pads, a first magnet layer is provided on the top of each of the two first arc-shaped pads, a second magnet layer is provided on the bottom of each of the two second arc-shaped pads, an abutment block is fixedly installed on both sides of each of the two second arc-shaped pads, and a base is fixedly installed on the bottom of the ceramic component body.

[0006] As a preferred technical solution of this utility model, the two second arc-shaped pads and the two protective sleeves are respectively fixedly connected by two positioning strips, and the two first magnet layers are respectively magnetically connected to the two second magnet layers.

[0007] As a preferred embodiment of this invention, the diameters of the two first magnet layers are equal to the diameters of the two second magnet layers.

[0008] As a preferred embodiment of this utility model, L-shaped blocks are fixedly installed on both sides of the two first arc-shaped pads, and screws are fixedly installed on the bottom of the four abutting blocks.

[0009] As a preferred technical solution of this utility model, each of the four L-shaped blocks has an embedding hole at its top, and the four screws are inserted and moved inside the four embedding holes respectively.

[0010] As a preferred embodiment of this utility model, a limiting nut is threaded onto one end of each of the four screws.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model comprises a first arc-shaped pad, a second arc-shaped pad, a protective sleeve, a first magnet layer, a second magnet layer, and a positioning strip. The two second arc-shaped pads are respectively fitted onto the outer surface of the ceramic part body. Since the first magnet layer and the second magnet layer are magnetically connected, as the second arc-shaped pads gradually approach the first arc-shaped pads, they are subsequently attracted to each other, thus covering both sides of the ceramic part body with the two protective sleeves. The two protective sleeves can wrap and protect the outer surface of the ceramic part body, providing resistance to external forces and preventing the ceramic part body from breaking under external force, thereby improving the practicality of the ceramic part body.

[0013] 2. This utility model, by setting up an abutment block, an L-shaped block, a screw, and a limiting nut, allows the first arc-shaped pad and the second arc-shaped pad to be adsorbed and installed. The screw is then inserted into the embedded hole in sequence. Subsequently, the limiting nut and the screw are threaded together to limit and fix the abutment block and the L-shaped block, further enhancing the stability of the adsorption of the first arc-shaped pad and the second arc-shaped pad, thus ensuring the firmness of the two protective sleeves. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of the present utility model;

[0015] Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0016] Figure 3 This is a partial front view schematic diagram of the structure of this utility model;

[0017] Figure 4 This is a partial bottom view of the structure of this utility model.

[0018] In the figure: 1. Ceramic body; 2. Insertion hole; 3. First arc-shaped pad; 4. Second arc-shaped pad; 5. Protective sleeve; 6. First magnet layer; 7. Second magnet layer; 8. Abutment block; 9. L-shaped block; 10. Embedding hole; 11. Screw; 12. Limiting nut; 13. Base; 15. Positioning strip. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 This utility model provides a technical solution for a porous ceramic component for connecting automotive oxygen sensor wiring harnesses:

[0021] Example 1:

[0022] like Figure 1-3 As shown, a porous ceramic component for connecting automotive oxygen sensor wiring harnesses includes a ceramic component body 1 and multiple insertion holes 2. The insertion holes 2 are respectively opened at the top of the ceramic component body 1. Two first arc-shaped pads 3 are fixedly sleeved at one end of the ceramic component body 1. A second arc-shaped pad 4 is provided on the top of each of the two first arc-shaped pads 3. A protective sleeve 5 is provided on one side of each of the two second arc-shaped pads 4. A first magnet layer 6 is provided on the top of each of the two first arc-shaped pads 3. A second magnet layer 7 is provided on the bottom of each of the two second arc-shaped pads 4. Abutment blocks 8 are fixedly installed on both sides of each of the two second arc-shaped pads 4. A base 13 is fixedly installed on the bottom of the ceramic component body 1. As the second arc-shaped pads 4 gradually approach the first arc-shaped pads 3, the two are subsequently attracted to each other, and the two protective sleeves 5 can cover the two sides of the ceramic component body 1. The two protective sleeves 5 can wrap and protect the outer surface of the ceramic component body 1, which can resist external forces and prevent the ceramic component body 1 from breaking under external force.

[0023] Example 2:

[0024] Based on Example 1, such as Figure 1 and Figure 4As shown, the two second arc-shaped pads 4 and the two protective sleeves 5 are fixedly connected by two positioning strips 15 respectively. The two first magnet layers 6 are magnetically connected to the two second magnet layers 7 respectively. L-shaped blocks 9 are fixedly installed on both sides of the two first arc-shaped pads 3. Screws 11 are fixedly installed on the bottom of the four abutment blocks 8. By setting the abutment blocks 8, L-shaped blocks 9, screws 11 and limiting nuts 12, after the first arc-shaped pads 3 and the second arc-shaped pads 4 are adsorbed and installed, the screws 11 are inserted into the interior of the embedding hole 10 in sequence. Then, by using the threaded fit of the limiting nuts 12 and the screws 11, the abutment blocks 8 and L-shaped blocks 9 can be limited and fixed.

[0025] Working Principle: An oxygen sensor is a device used to detect the oxygen content in engine emissions. It is widely used in automotive emission control systems, primarily to help the engine control unit adjust the fuel-air mixture ratio. The working principle of the oxygen sensor is based on an electrochemical reaction: it typically consists of a ceramic element that reacts with oxygen in the exhaust gas at high temperatures, generating a voltage signal. The porous ceramic component acts as a catalyst and part of a filter, ensuring that vehicle emissions meet environmental standards and reducing harmful gas emissions. The ceramic component has multiple holes, mainly used to connect to the automotive oxygen sensor wiring harness. Ceramic materials are relatively fragile; external physical impacts may cause cracks and breakage, affecting the function of the ceramic component or even causing malfunctions, thereby damaging the wiring harness and affecting the transmission of electrical signals. Therefore, designing a porous ceramic component for connecting automotive oxygen sensor wiring harnesses is particularly important. Two second arc-shaped pads 4 are respectively fitted onto the outer surface of the ceramic body 1. Since the first magnet layer 6 and the second magnet layer 7 are magnetically connected, as the second arc-shaped pads 4 gradually approach the first arc-shaped pads 3, the two are subsequently attracted to each other, and the two protective sleeves 5 can cover both sides of the ceramic body 1. The two protective sleeves 5 can wrap and protect the outer surface of the ceramic body 1, which can resist external forces and prevent the ceramic body 1 from breaking under external forces, thus improving the practicality of the ceramic body 1. After the first arc-shaped pads 3 and the second arc-shaped pads 4 are attracted and installed, the screw 11 is inserted into the embedded hole 10 in sequence. Then, the limiting nut 12 is used to fit the screw 11, which can limit and fix the abutment block 8 and the L-shaped block 9, further enhancing the stability of the attraction of the first arc-shaped pads 3 and the second arc-shaped pads 4, thus ensuring the firmness of the two protective sleeves 5.

[0026] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A porous ceramic piece for automobile oxygen sensor harness connection, comprising a ceramic piece body (1) and a plurality of insertion holes (2), the plurality of insertion holes (2) are respectively formed in the top end of the ceramic piece body (1), characterized in that: Two first arc-shaped pads (3) are fixedly sleeved on one end of the ceramic body (1). A second arc-shaped pad (4) is provided on the top of each of the two first arc-shaped pads (3). A protective sleeve (5) is provided on one side of each of the two second arc-shaped pads (4). A first magnet layer (6) is provided on the top of each of the two first arc-shaped pads (3). A second magnet layer (7) is provided on the bottom of each of the two second arc-shaped pads (4). An abutment block (8) is fixedly installed on both sides of each of the two second arc-shaped pads (4). A base (13) is fixedly installed on the bottom of the ceramic body (1).

2. The porous ceramic component for connecting automotive oxygen sensor wiring harnesses according to claim 1, characterized in that: The two second arc-shaped pads (4) are fixedly connected to the two protective sleeves (5) by two positioning strips (15), and the two first magnet layers (6) are magnetically connected to the two second magnet layers (7).

3. The porous ceramic component for connecting automotive oxygen sensor wiring harnesses according to claim 2, characterized in that: The diameters of the two first magnet layers (6) are equal to the diameters of the two second magnet layers (7).

4. The porous ceramic component for connecting automotive oxygen sensor wiring harnesses according to claim 1, characterized in that: L-shaped blocks (9) are fixedly installed on both sides of the two first arc-shaped pads (3), and screws (11) are fixedly installed on the bottom of the four abutting blocks (8).

5. A porous ceramic component for connecting an automotive oxygen sensor wiring harness according to claim 4, characterized in that: Each of the four L-shaped blocks (9) has an insertion hole (10) at its top, and the four screws (11) are inserted and moved inside the four insertion holes (10).

6. A porous ceramic component for connecting an automotive oxygen sensor wiring harness according to claim 5, characterized in that: Each of the four screws (11) has a limit nut (12) threaded onto one end.