Novel oxygen sensor terminal structure

Abstract

The utility model relates to a novel oxygen sensor terminal structure which comprises a terminal connector, a contact terminal is arranged in the terminal connector, the contact terminal is inserted into the terminal connector from one end of the terminal connector, a jack is formed in the end, away from the contact terminal, of the terminal connector, and the jack is used for being connected with an electrode of a chip in an inserted mode. The end, inserted into the terminal joint, of the contact terminal is fixedly provided with a barb part, and the barb part extends into the jack. The oxygen sensor has the effect of improving the stability of the oxygen sensor.

Description

Technical Field

[0001] This application relates to the field of sensing devices, and particularly to a novel oxygen sensor terminal structure. Background Art

[0002] An oxygen sensor is a device used to measure the oxygen concentration in the environment. It is commonly applied in fields such as industry, environmental monitoring, and automotive emission control. In an automobile, the main function of the oxygen sensor is to detect the oxygen concentration in the exhaust gas, thereby helping to adjust the air-fuel ratio of the engine to achieve more efficient combustion and lower emissions. Oxygen sensors in industry and environmental monitoring are used to ensure the safety of the production process or monitor air quality. Different types of oxygen sensors may detect oxygen concentration based on different working principles, such as electrochemical, zirconia, or optical methods.

[0003] Since the environment in which the oxygen sensor is used is quite harsh, with large vibrations, high temperatures, high-speed sand and gravel impacts, and frequent rapid changes between hot and cold, it is required that the signal contact terminal inside the sensor and the signal output electrode area of the chip have good contact conductivity. Otherwise, it is easy to cause poor contact between the terminal and the chip due to shaking. Summary of the Utility Model

[0004] In order to improve the stability of the oxygen sensor, this application provides a novel oxygen sensor terminal structure.

[0005] The novel oxygen sensor terminal structure provided by this application adopts the following technical solutions:

[0006] A novel oxygen sensor terminal structure includes a terminal joint. A contact terminal is arranged inside the terminal joint. The contact terminal is inserted into the terminal joint from one end of the terminal joint. An insertion hole is provided at the end of the terminal joint far from the end where the contact terminal is inserted. The insertion hole is used to insert and connect the electrode of the chip. A barb portion is fixedly provided at the end of the contact terminal inserted into the terminal joint, and the barb portion extends into the insertion hole.

[0007] By adopting the above technical solution, the setting of the barb portion can strengthen the firmness of the electrode of the inserted and connected chip in the insertion hole, reduce the probability of poor contact caused by shaking, and improve the stability of the oxygen sensor.

[0008] Optionally, a connection portion is provided at the end of the contact terminal far from the terminal joint. The connection portion is used to connect a wire. A bending portion is provided between the connection portion and the contact terminal.

[0009] By adopting the above technical solution, the connection portion is used to connect the wire. On the one hand, the bending portion can abut against the wire to limit the wire during connection. At the same time, it can also absorb part of the vibration through the bending deformation of the bending portion when the oxygen sensor vibrates, thereby reducing the occurrence of flash-off phenomena.

[0010] Optionally, a thickened portion is provided on the contact terminal.

[0011] By adopting the above technical solution, the provision of the thickened portion can improve the structural strength of the contact terminal.

[0012] Optionally, an abutment piece is provided on the contact terminal.

[0013] By adopting the above technical solution, the contact piece can be used for installation and positioning of the contact terminal.

[0014] Optionally, a reinforcement portion is provided between the contact terminal and the thickened portion and the bent portion.

[0015] By adopting the above technical solution, due to the arrangement of the bent portion and the thickened portion of the contact terminal, the intermediate connection area needs to withstand greater force, and the arrangement of the reinforcement portion can reduce the probability of fracture at the connection between the thickened portion and the bent portion.

[0016] Optionally, the terminal connector includes a terminal ceramic and a connecting ceramic fixed to the terminal ceramic, the thickened portion and the abutting piece of the contact terminal are both arranged in the terminal ceramic, and the jack is opened on the connecting ceramic.

[0017] By adopting the above technical solution, the connecting ceramic is used to insert the chip and the terminal ceramic is used to fix the contact terminal, and the connection between the two facilitates the connection between the contact terminal and the chip.

[0018] Optionally, the contact terminal includes a short contact terminal and a long contact terminal, and the short contact terminal and the long contact terminal are respectively arranged in different sockets.

[0019] By adopting the above technical solution, the connection points of the chip and the terminal are arranged on different horizontal planes by setting short contact terminals and long contact terminals, thereby avoiding the probability of a horizontal plane being hit and affecting both the short contact terminal and the long contact terminal at the same time, thereby improving the terminal and chip.

[0020] Optionally, the long contact terminal is provided with a widened portion in the area between the thickened portion and the barb portion.

[0021] By adopting the above technical solution, the distance between the thickened portion and the barb portion of the long contact terminal is longer, which makes it easy to bend and break, and the reaction after being subjected to force will also be relatively large. By setting the widened portion, the structural strength between the thickened portion and the barb portion is improved.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The barb portion can strengthen the firmness of the electrode of the plug-in connection chip in the socket, reduce the probability of poor contact due to shaking, and improve the stability of the oxygen sensor;

[0024] 2. The connecting part is used to connect the wire. On the one hand, the bending part can abut against the wire to limit the wire connection, and at the same time, it can also absorb part of the vibration through the bending deformation of the bending part when the oxygen sensor vibrates, thereby reducing the occurrence of flash-off phenomenon;

[0025] 3. Due to the settings of the bending part and the thickening part of the contact terminal, the middle connection area needs to bear greater force. The setting of the reinforcement part can reduce the probability of fracture at the connection between the thickening part and the bending part;

[0026] 4. The connection ceramic is used to insert the chip, and the terminal ceramic is used to fix the contact terminal. The connection between the two facilitates the connection between the contact terminal and the chip;

[0027] 5. By setting the short contact terminal and the long contact terminal, the connection points of the chip and the terminal are arranged on different horizontal planes, thereby avoiding the probability that an impact on one horizontal plane affects both the short contact terminal and the long contact terminal at the same time, and improving the terminal and the chip. Brief Description of the Drawings

[0028] Figure 1 is a stepped cross-sectional view of the terminal joint of this embodiment.

[0029] Figure 2 is a schematic structural diagram of the contact terminal of this embodiment.

[0030] Description of the reference numerals: 0, short transmission component; 1, terminal joint; 101, terminal ceramic; 102, connection ceramic; 2, contact terminal; 201, short contact terminal; 202, long contact terminal; 3, jack; 4, barb; 5, connecting part; 6, bending part; 7, thickening part; 8, abutting piece; 9, reinforcement part; 10, widening part; 11, electrode. Detailed Description of the Embodiment

[0031] The following is further detailed description of this application in combination with the attached Figure 1-2 for this application.

[0032] The embodiment of this application discloses a novel oxygen sensor terminal structure. Refer to Figure 1, including a terminal connector 1, a plurality of contact terminals 2 are arranged in the terminal connector 1, and in this embodiment, four contact terminals 2 are arranged, one end of the contact terminal 2 in the length direction is inserted into the terminal connector 1 from one end of the terminal connector 1, and the other end of the contact terminal 2 in the length direction is located outside the terminal connector 1, and a socket 3 is provided at the end of the terminal connector 1 away from the contact terminal 2. The socket 3 is used to plug the electrode 11 of the connecting chip. In this embodiment, the electrode 11 is the electrode 11 of the short transmission component 0, and the short transmission component 0 connects the chip of the motor and the oxygen sensor. A hook portion 4 is fixed on one end of the contact terminal 2 inserted into the terminal connector 1, and the hook portion 4 extends into the socket 3. The hook portion 4 is a metal sheet with elasticity, and the electrode 11 inserted in the socket 3 is clamped and reinforced by the elasticity of the metal sheet. In this embodiment, two sockets 3 are provided, and the four contact terminals 2 are divided into two groups and are mirrored and arranged at the two sockets 3. The setting of the hook portion 4 can strengthen the firmness of the electrode 11 of the connecting chip in the socket 3, reduce the probability of poor contact due to shaking, and improve the stability of the oxygen sensor.

[0033] Reference Figure 1 and Figure 2 The contact terminal 2 is provided with a connecting portion 5 at one end away from the terminal connector 1, and the connecting portion 5 is used to connect the wire. A bending portion 6 is provided between the connecting portion 5 and the contact terminal 2. In this embodiment, the bending portion 6 is U-shaped, and the connecting portion 5 is used to connect the wire. On the one hand, the bending portion 6 can abut the wire to limit the connection of the wire. At the same time, it can also absorb part of the vibration through the bending deformation of the bending portion 6 when the oxygen sensor vibrates, thereby reducing the occurrence of flash-break phenomenon. A thickened portion 7 is integrally formed on the contact terminal 2, and the setting of the thickened portion 7 can improve the structural strength of the contact terminal 2; an abutting piece 8 is integrally formed on the contact terminal 2, and the abutting piece 8 can be used for the installation and positioning of the contact terminal 2; a reinforcement portion 9 is provided between the contact terminal 2 and the thickened portion 7 and the bending portion 6. Due to the setting of the bending portion 6 and the thickened portion 7 of the contact terminal 2, the intermediate connection area needs to withstand greater force, and the setting of the reinforcement portion 9 can reduce the probability of breakage at the connection between the thickened portion 7 and the bending portion 6.

[0034] Reference Figure 1 The terminal connector 1 includes a terminal ceramic 101 and a connecting ceramic 102 fixed to the terminal ceramic 101. The thickened portion 7 and the abutment piece 8 of the contact terminal 2 are both arranged in the terminal ceramic 101. The socket 3 is opened on the connecting ceramic 102. The connecting ceramic 102 is used to insert the chip and the terminal ceramic 101 is used to fix the contact terminal 2. The connection between the two facilitates the connection between the contact terminal 2 and the chip.

[0035] Reference Figure 1 and Figure 2, the contact terminal 2 includes a short contact terminal 201 and a long contact terminal 202. The short contact terminal 201 and the long contact terminal 202 are respectively arranged in different jacks 3. By setting the short contact terminal 201 and the long contact terminal 202, the connection points of the chip and the terminal are arranged on different horizontal planes, so as to avoid the probability that one horizontal plane is impacted and affects both the short contact terminal 201 and the long contact terminal 202 at the same time, and improve the terminal and the chip; a widened portion 10 is arranged in the area between the thickened portion 7 and the barb portion 4 of the long contact terminal 202. The distance between the thickened portion 7 and the barb portion 4 of the long contact terminal 202 is relatively long, and it is easy to bend and break, and the reaction after being stressed is also relatively large. By setting the widened portion 10, the structural strength between the thickened portion 7 and the barb portion 4 is improved.

[0036] The implementation principle of the embodiment of the present application is as follows: Install the contact terminal 2 in the terminal ceramic 101, then insert one end of the contact terminal 2 into the connection ceramic 102, and fix the terminal ceramic 101 and the connection ceramic 102. Subsequently, install the wire at the end of the contact terminal 2 away from the inserted connection ceramic 102. Then install the short transmission component 0 of the oxygen sensor on the terminal joint 1, so that the chip electrode 11 on the short transmission component 0 is inserted into the jack 3, and drive the barb portion 4 to deform. When the electrode 11 is completely inserted into the jack 3, the barb portion 4 abuts against the electrode 11 by elastic force to reduce the probability of the motor falling off. When vibration occurs, the barb portions 4 on both sides of the electrode 11 always abut against the electrode 11 by elastic force. At the same time, the bending portion 6 will also be stressed and appropriately deformed to absorb part of the vibration when vibration occurs.

[0037] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A new type of oxygen sensor terminal structure, including a terminal connector (1), wherein a contact terminal (2) is arranged inside the terminal connector (1), and it is characterized in that: The contact terminal (2) is inserted into the terminal connector (1) from one end of the terminal connector (1); a socket (3) is provided at one end of the terminal connector (1) away from the contact terminal (2); the socket (3) is used to plug the electrode (11) of the connection chip; a barb (4) is fixedly provided at one end of the contact terminal (2) inserted into the terminal connector (1); the barb (4) extends into the socket (3).

2. The novel oxygen sensor terminal structure according to claim 1, characterized in that: A connecting portion (5) is provided at one end of the contact terminal (2) away from the terminal connector (1), the connecting portion (5) being used to connect a wire, and a bending portion (6) is provided between the connecting portion (5) and the contact terminal (2).

3. The novel oxygen sensor terminal structure according to claim 2, characterized in that: A thickened portion (7) is provided on the contact terminal (2).

4. A novel oxygen sensor terminal structure according to claim 3, characterized in that: The contact terminal (2) is provided with an abutment piece (8).

5. A novel oxygen sensor terminal structure according to claim 4, characterized in that: A reinforcement portion (9) is provided between the contact terminal (2), the thickened portion (7) and the bent portion (6).

6. A novel oxygen sensor terminal structure according to claim 5, characterized in that: The terminal connector (1) comprises a terminal ceramic (101) and a connecting ceramic (102) fixed to the terminal ceramic (101); the thickened portion (7) and the abutting piece (8) of the contact terminal (2) are both arranged in the terminal ceramic (101); and the jack (3) is provided on the connecting ceramic (102).

7. A novel oxygen sensor terminal structure according to claim 6, characterized in that: The contact terminal (2) comprises a short contact terminal (201) and a long contact terminal (202), and the short contact terminal (201) and the long contact terminal (202) are respectively arranged in different jacks (3).

8. A novel oxygen sensor terminal structure according to claim 7, characterized in that: The long contact terminal (202) is provided with a widened portion (10) in the area between the thickened portion (7) and the barbed hook portion (4).

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