Wide-range oxygen sensor ceramic chip detection tool

Abstract

The utility model provides a detection tool for a ceramic chip of a wide-range oxygen sensor. The detection tool comprises at least one positioning piece and an electric control unit, a plurality of positioning grooves for guiding the sensor ceramic chips to be inserted are formed in the positioning piece; limiting plates for clamping the sensor ceramic chip in the positioning groove are arranged on the two sides of the positioning piece, wire welding holes connected with the electric control unit are formed in the limiting plates, pins are arranged at the positions corresponding to the positioning groove, and wires are arranged in the limiting plates and connected to the wire welding holes and the pins. According to the detection tool for the ceramic chip of the wide-range oxygen sensor, the positioning piece of the tool is provided with the accurate positioning groove, stable positioning of the ceramic chip of the sensor in the detection process is ensured, and therefore the accuracy and repeatability of detection are improved. The design of the limiting plate not only provides stable clamping for the chip, but also realizes efficient detection for the performance of the chip through the connection of the lead welding hole and the pin with the electric control unit.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen sensor detection tooling, in particular to a detection tooling for a wide-range oxygen sensor ceramic chip. Background Art

[0002] Traditional oxygen sensors mainly rely on a single oxygen concentration threshold to operate, while wide-range oxygen sensors can detect a wider range of oxygen concentrations and provide more precise control signals. This feature gives wide-range oxygen sensors significant advantages in improving engine performance and reducing emissions. However, the performance of wide-range oxygen sensors depends to a large extent on the quality of their core component - the ceramic chip.

[0003] At present, there are certain quality control challenges in the production process of wide-range oxygen sensor ceramic chips. Due to the lack of special detection equipment for wide-range oxygen sensor ceramic chips, the produced chips have inconsistencies in performance and quality, resulting in the outflow of defective products, which affects the overall performance and reliability of the sensors. In addition, existing detection methods are often inefficient and cannot meet the needs of large-scale production. Summary of the Utility Model

[0004] The utility model provides a detection tooling for a wide-range oxygen sensor ceramic chip, which solves the problem that in the prior art, due to the lack of special detection equipment for wide-range oxygen sensor ceramic chips, the produced chips have inconsistencies in performance and quality, resulting in the outflow of defective products.

[0005] The technical solution of the utility model is realized as follows:

[0006] A detection tooling for a wide-range oxygen sensor ceramic chip includes at least one positioning member and an electronic control unit; a plurality of positioning grooves for guiding the insertion of the sensor ceramic chip are formed in the positioning member; limiting plates for clamping the sensor ceramic chip in the positioning grooves are arranged on both sides of the positioning member, wire welding holes connected to the electronic control unit are arranged on the limiting plates, and pins are arranged corresponding to the positioning grooves. Wires inside the limiting plates are connected to the wire welding holes and the pins.

[0007] Further, the limiting plate is a PCB board.

[0008] Further, the positioning member is an integrally formed plate-shaped member.

[0009] Further, the positioning member is two symmetrically arranged plate-shaped members.

[0010] Further, it further includes a clamping mechanism, and the clamping mechanism is composed of two buckles symmetrically arranged on the opposite sides of the two limiting plates.

[0011] Further, the adjacent sides of the two buckles have through buckling grooves.

[0012] Furthermore, the clamping mechanism further includes a plurality of flat-head shafts and a plurality of elastic members. The fixed side of the flat-head shaft slides through the back surface of one of the limiting plates and is fixed to the other limiting plate, and the elastic member is sleeved on the extending side of the flat-head shaft.

[0013] Furthermore, a plurality of fixing screws are provided on the two limiting plates, and the fixing screws are threadedly connected to the two limiting plates.

[0014] Beneficial effects brought by the technical solution provided by this application:

[0015] For this wide-range oxygen sensor ceramic chip detection tooling, the positioning member of this tooling is equipped with precise positioning grooves to ensure the stable positioning of the sensor ceramic chip during the detection process, thereby improving the accuracy and repeatability of the detection. The design of the limiting plates not only provides a firm clamping of the chip, but also realizes the efficient detection of the chip performance through the connection of the wire welding holes and the pins to the electronic control unit. This design significantly improves the detection efficiency, reduces the defective rate during the production process, and also enhances the overall performance and reliability of the wide-range oxygen sensor. In addition, the versatility and modular design of this tooling enable it to adapt to different models of wide-range oxygen sensor ceramic chips. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 Half-sectional view of Embodiment 1 of the present invention;

[0018] Figure 2 Sectional view of Embodiment 2 of the present invention;

[0019] Figure 3 Top view of Embodiment 2 of the present invention.

[0020] In the figure: 10 positioning member, 11 positioning groove; 20 limiting plate, 21 wire welding hole, 22 pin; 30 clamping mechanism, 31 clamping plate, 32 clamping groove, 33 flat-head shaft, 34 elastic member, 35 fixing screw. Detailed Embodiments

[0021] The technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work belong to the protection scope of the present utility model.

[0022] Embodiment 1

[0023] Referring to Figure 1 , a detection tooling for a wide-range oxygen sensor ceramic chip includes at least one positioning member 10 and an electronic control unit; a plurality of positioning grooves 11 for guiding the insertion of the sensor ceramic chip are formed in the positioning member 10; limiting plates 20 for clamping the sensor ceramic chip in the positioning grooves 11 are arranged on both sides of the positioning member 10, wire welding holes 21 connected to the electronic control unit are arranged on the limiting plates 20, and pins 22 are arranged corresponding to the positioning grooves 11. Wires inside the limiting plates 20 are connected to the wire welding holes 21 and the pins 22.

[0024] The positioning member 10 is the main component of the detection tooling, which is used to fix and guide the sensor ceramic chip into the detection position. A plurality of positioning grooves 11 are provided on the positioning member, and the design of these grooves ensures that the sensor ceramic chip can be accurately inserted and positioned. The limiting plates 20 are located on both sides of the positioning member, and their function is to clamp and fix the sensor ceramic chip inserted into the positioning groove to prevent displacement or rotation during the detection process. The wire welding holes 21 are arranged on the limiting plates for welding the wires connected to the electronic control unit to ensure that the electrical signals can be stably transmitted to the sensor ceramic chip. The pins 22 correspond to each positioning groove and are arranged on the limiting plates for contacting the corresponding electrodes of the sensor ceramic chip to realize the input and output of electrical signals. The wires inside the limiting plates connect the wire welding holes 21 and the pins 22 to form a part of the circuit, ensuring the correct transmission of electrical signals between the detection tooling and the sensor ceramic chip.

[0025] When the sensor ceramic chip is inserted into the positioning groove 11, the limiting plate 20 clamps and fixes it to ensure the accuracy of the chip position. The wires connected through the wire welding holes 21 transmit the electrical signals of the electronic control unit to the pins 22, and the pins contact the electrodes of the sensor ceramic chip to realize the input of signals. The sensor ceramic chip responds according to the input electrical signals, and its performance parameters such as resistance or voltage changes are transmitted back to the electronic control unit through the pins 22 for analysis. The internal wires ensure the stable transmission of signals inside the detection tooling, improving the accuracy and reliability of the detection. The design of the entire system allows for a comprehensive performance test of the sensor ceramic chip, including its response characteristics at different oxygen concentrations, so as to ensure that its performance meets the requirements in practical applications.

[0026] The electronic control unit generally refers to the engine control unit in an automotive system. However, in the detection tooling for wide - area oxygen sensor ceramic chips, the electronic control unit refers to a specialized test device or system used to evaluate and analyze the performance of the sensor ceramic chips. The electronic control unit includes a microprocessor, a memory, input / output interfaces, a power management module, etc., which are used to execute detection programs and process data. The software inside the electronic control unit includes control algorithms, data acquisition programs, signal processing logic, fault diagnosis codes, etc., which are used to guide the detection process and analyze the detection results. The electronic control unit is designed with interfaces / wiring connections to the limit plate 20 to achieve electrical connection with the sensor ceramic chip.

[0027] Furthermore, the limit plate 20 is a PCB board. On the PCB limit plate, wire soldering holes are used to fix the wires connected to the electronic control unit. These holes are usually pre - designed on the PCB board to achieve precise and stable electrical connections. The pins on the PCB board are designed to directly contact the electrodes of the sensor ceramic chip to achieve signal transmission. These pins can be conductive tracks or specific contact points on the PCB board.

[0028] The detection tooling using the PCB limit plate 20 is based on the electrical characteristics and design flexibility of the PCB board. After the sensor ceramic chip is inserted into the positioning groove 11, the pins 22 on the PCB limit plate 20 contact the chip electrodes to form an electrical connection. The electronic control unit sends test signals to the sensor ceramic chip through the wire soldering holes 21 on the PCB board. The internal circuit design on the PCB board can appropriately process the signals, such as amplifying, filtering, or adjusting, to meet the detection requirements of the sensor ceramic chip.

[0029] Furthermore, the positioning member 10 is an integrally formed plate - shaped member. The positioning member 10 is made in one piece through a manufacturing process, such as plastic injection molding, metal stamping, or casting, etc., to form the required shape and size at one time without subsequent assembly of multiple components. The positioning member 10 has a flat - plate - like outer shape, which makes it structurally stable and easy to integrate into the detection tooling.

[0030] Since the positioning member 10 is integrally formed, it eliminates the errors and inconsistencies that may be brought about by the assembly of multiple components, improving the overall accuracy and reliability of the detection tooling. In addition, the integrally formed positioning member 10 can achieve higher production efficiency and lower costs during the manufacturing process because it reduces the assembly steps and potential assembly defects.

[0031] Further, the positioning member 10 is composed of two symmetrically arranged plate-like members. The positioning member 10 consists of two plate-like members with the same design and symmetrical shapes, which allows for a more flexible layout and a wider range of applications. Each of the symmetric plate-like members is provided with a positioning groove 11, and these positioning grooves form a matching space between the two symmetric plates for guiding and fixing the sensor ceramic chip.

[0032] Since the positioning members 10 are symmetrically arranged, they can provide a more uniform pressure distribution and support, reducing the offset or tilt of the chip during the detection process. This symmetry also helps to reduce manufacturing errors because the two plate-like members can be manufactured and calibrated simultaneously to ensure their consistency.

[0033] Embodiment 2

[0034] As Figure 2 、 3 shown, different from Embodiment 1, it further includes a clamping mechanism 30, and the clamping mechanism 30 is composed of two buckle plates 31 symmetrically arranged on the opposite sides of the two limiting plates 20.

[0035] The clamping mechanism 30 is a newly added component, and its main function is to enhance the stability and fixity of the limiting plate 20. The clamping mechanism is composed of two symmetrically arranged buckle plates, which are located on the outer side or both ends of the limiting plate 20 and are used to clamp the limiting plate. The buckle plate 31 clamps the limiting plate 20 to fix the position of the limiting plate and prevent it from displacing during the detection process.

[0036] This clamping mechanism allows the buckle plate 31 to provide a stable fixing effect without increasing additional pressure. The symmetrical arrangement of the buckle plates helps to achieve a uniform clamping force, ensuring that the limiting plate 20 remains stable during the detection process and will not displace due to external forces or vibrations.

[0037] Further, the adjacent sides of the two buckle plates 31 have through buckle grooves 32 that penetrate up and down. The adjacent sides of the buckle plate 31 have through buckle grooves 32, and these buckle grooves allow the buckle plate to be interlocked or clamped with the limiting plate. The buckle plate 31 clamps the limiting plate 20 through the buckle groove 32 to fix the position of the limiting plate and prevent it from displacing during the detection process.

[0038] Further, the clamping mechanism 30 further includes a plurality of flat head shafts 33 and a plurality of elastic members 34. The fixed side of the flat head shaft 33 slides through the back surface of one of the limiting plates 20 and is fixed to the other limiting plate 20, and the elastic member 34 is sleeved on the extended side of the flat head shaft 33.

[0039] The flat head shaft 33 is a key component in the clamping mechanism. It has one or more flat heads and is used to pass through the limit plates 20 and be fixed between them. These components are sleeved on the extended side of the flat head shaft 33, providing the required elastic force to clamp the limit plates 20. The fixed side of the flat head shaft 33 slides through from the back of one of the limit plates 20 to be fixed to the other limit plate 20, while the elastic member 34 is sleeved on the extended side of the flat head shaft 33. The design of the flat head shaft 33 allows it to slide between the limit plates 20 to facilitate the adjustment of the clamping force and position.

[0040] In Embodiment 2, the clamping mechanism 30 realizes the clamping of the limit plates 20 through the cooperation of the flat head shaft 33 and the elastic member 34. The fixed side of the flat head shaft 33 starts from the back of one limit plate 20, slides through to the other limit plate 20, and is fixed there. This design allows the flat head shaft to move between the limit plates to adjust the clamping position and force. The elastic member 34 is sleeved on the extended side of the flat head shaft 33, and their function is to provide the required elastic force when the flat head shaft moves, ensuring that the limit plates 20 are clamped evenly and stably. The elastic characteristics of the elastic member allow the flat head shaft to keep the limit plates fixed after reaching the predetermined position, preventing displacement due to external forces. When it is necessary to adjust the clamping force or release the limit plates, it can be achieved by operating the flat head shaft 33. Due to the presence of the elastic member 34, the flat head shaft can easily move to a new position while maintaining the required clamping force. This design not only improves the operation flexibility of the clamping mechanism but also ensures the stability and reliability of the clamping process.

[0041] Furthermore, a plurality of fixing screws 35 are provided on the two limit plates 20, and the fixing screws 35 are threadedly connected to the two limit plates 20.

[0042] The fixing screws 35 are connected to the limit plates 20 by threads. This connection method allows for precise adjustment of the distance and pressure between the two limit plates. A plurality of fixing screws 35 are provided on each limit plate, and these screws are evenly distributed to ensure that the limit plates have sufficient fixing force in all directions. The presence of the fixing screws 35 also allows for fine adjustment of the position of the limit plates 20 to adapt to sensor ceramic chips of different sizes.

[0043] The fixing screws 35 play a key role in the clamping mechanism 30. They are threadedly connected to the two limit plates 20 to provide stable fixation for the limit plates. When it is necessary to fix the sensor ceramic chip in the positioning groove 11, the two limit plates 20 can be pulled closer by tightening the fixing screws 35, thereby realizing the clamping of the chip. This threaded connection method allows the operator to adjust the clamping force as needed to ensure the stability of the sensor ceramic chip during the detection process. At the same time, the setting of a plurality of fixing screws 35 provides uniform clamping force, avoiding chip damage caused by excessive local pressure.

[0044] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A wide-range oxygen sensor ceramic chip detection tooling, comprising at least one positioning member (10) and an electronic control unit; characterized in that, The positioning member (10) is provided with a plurality of positioning grooves (11) for guiding the insertion of sensor ceramic chips; on both sides of the positioning member (10), there are limiting plates (20) for clamping the sensor ceramic chips in the positioning grooves (11). The limiting plates (20) are provided with wire welding holes (21) connected to the electronic control unit, and pins (22) corresponding to the positioning grooves (11). Inside the limiting plates (20), wires are connected to the wire welding holes (21) and the pins (22).

2. The wide-range oxygen sensor ceramic chip detection tooling according to claim 1, characterized in that The limiting plate (20) is a PCB board.

3. The wide-range oxygen sensor ceramic chip detection tooling according to claim 1, characterized in that, The positioning member (10) is a plate-shaped member formed integrally.

4. The wide-range oxygen sensor ceramic chip detection tooling according to claim 1, characterized in that The positioning member (10) is composed of two symmetrically arranged plate-shaped members.

5. The detection tooling for the wide-range oxygen sensor ceramic chip according to claim 1, characterized in that It further includes a clamping mechanism (30), which is composed of two clamping plates (31) symmetrically arranged on the separated sides of the two limiting plates (20).

6. The wide-range oxygen sensor ceramic chip detection tooling according to claim 5, characterized in that, The adjacent sides of the two clamping plates (31) have through slots (32) extending vertically.

7. The wide-range oxygen sensor ceramic chip detection tooling according to claim 5, characterized in that, The clamping mechanism (30) further includes a plurality of flat head shafts (33) and a plurality of elastic members (34). The fixed sides of the flat head shafts (33) slide through the back surface of one of the limiting plates (20) and are fixed to the other limiting plate (20). The elastic members (34) are sleeved on the extending sides of the flat head shafts (33).

8. The detection tooling for the wide-range oxygen sensor ceramic chip according to claim 5, characterized in that, A plurality of fixing screws (35) are arranged on the two limiting plates (20), and the fixing screws (35) are threadedly connected to the two limiting plates (20).

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