CN218958141U - Nitrogen-oxygen sensor - Google Patents
Nitrogen-oxygen sensor Download PDFInfo
- Publication number
- CN218958141U CN218958141U CN202320160739.3U CN202320160739U CN218958141U CN 218958141 U CN218958141 U CN 218958141U CN 202320160739 U CN202320160739 U CN 202320160739U CN 218958141 U CN218958141 U CN 218958141U
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- shell
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- nitrogen
- circuit board
- column
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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Abstract
The utility model relates to a nitrogen-oxygen sensor, which comprises a shell and a circuit board positioned in the shell, wherein a left plug connector and a right plug connector are fixed on the shell, and the nitrogen-oxygen sensor has the beneficial effects that: when the socket of the circuit board and the plug are matched and installed, the first positioning column and the second positioning column are arranged in a diagonal mode, the through holes corresponding to the positioning columns are formed in the circuit board, the functions of guiding and identifying the directions are achieved, when the socket is matched, the through holes are required to be aligned with the positioning columns, the function of convenient assembly is achieved, and the phenomenon that the socket of the circuit board does not correspond to the plug does not occur.
Description
Technical Field
The utility model belongs to the technical field of sensors, and particularly relates to a nitrogen-oxygen sensor.
Background
The nitrogen-oxygen sensor consists of a sensor probe and an electric control unit, wherein the sensor probe and the electric control unit are connected through a wire harness, and can be used for measuring the concentration of nitrogen oxides (a mixture of nitrogen oxides such as NO and N02) in tail gas and the concentration of oxygen, and can be used in an SCR system of a diesel engine to realize closed-loop control of NOx or in vehicle-mounted diagnosis (OBD) of gasoline and diesel engines.
When the plug connector of the shell of the existing nitrogen-oxygen sensor is assembled with the circuit board, the socket of the circuit board is arranged downwards and needs to be assembled with the contact pins of the plug connector, and the quantity of the contact pins of the two plug connectors is different, so that the socket of the circuit board does not correspond to the plug connector during assembly, and the assembly is unsuccessful or the contact pins of the plug connector are bent easily.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a nitrogen oxygen sensor, includes casing and is located the circuit board in the casing, its characterized in that: the novel circuit board is characterized in that a left plug connector and a right plug connector are fixed on the shell, a left plug pin and a right plug pin are fixed on the left plug connector and the right plug connector, the left plug pin and the right plug pin are located in the shell, a socket connected with the left plug pin and the right plug pin is arranged on the circuit board, the shell is connected with the circuit board through a locating component, the locating component comprises a first locating column and a second locating column which are fixedly arranged in the shell, the first locating column and the second locating column are diagonally arranged, fixing plates fixedly connected with the shell are fixed on the periphery of the first locating column, fixing blocks fixedly connected with the shell are fixed on the periphery of the second locating column, a connecting ring is fixed in the middle of the shell, the connecting ring is fixedly connected with the fixing plates close to the connecting ring through a first connecting rod, a first guide column and a second guide column are fixedly arranged on the first locating column and the second locating column respectively through a second connecting rod, and a first guide column and a second guide column are matched with a first guide column are arranged on the radius of the first guide column and the second guide column.
The utility model is further provided with: the shell is provided with an upper cover, the lower surface of the upper cover is fixedly provided with a circle of fixing strip, the fixing strip is provided with a circle of slots matched with the frame of the shell, the periphery of the outer surface of the shell is fixedly provided with a convex strip, and the upper end face of the convex strip is in abutting connection with the lower end face of the fixing strip.
The utility model is further provided with: the lower surface of the upper cover is fixedly provided with a protection pad, and the protection pad is positioned in the fixing strip.
The utility model is further provided with: the outer side of the shell is fixedly provided with a fixed disc, a supporting block fixedly connected with the shell is arranged below the fixed disc, and a fixed hole is formed in the fixed disc.
The utility model is further provided with: the left plug connector and the right plug connector are fixedly connected with the connecting ring through connecting strips, and the connecting strips are positioned in the shell.
The utility model is further provided with: the left contact pin is provided with five contact pins and the right contact pin is provided with eight contact pins.
The utility model is further provided with: the fixing strips are fixedly connected with the convex strips through glue.
The utility model has the beneficial effects that: when the socket of the circuit board and the plug are matched and installed, the first positioning column and the second positioning column are arranged in a diagonal mode, the through holes corresponding to the positioning columns are formed in the circuit board, the functions of guiding and identifying the directions are achieved, when the socket is matched, the through holes are required to be aligned with the positioning columns, the function of convenient assembly is achieved, and the phenomenon that the socket of the circuit board does not correspond to the plug does not occur.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the circuit board of the present utility model disposed in a housing;
FIG. 3 is a schematic view of a positioning assembly according to the present utility model;
fig. 4 is a schematic structural view of the upper cover of the present utility model.
Detailed Description
According to fig. 1-4, the embodiment discloses a nitrogen-oxygen sensor, including casing 1 and be located circuit board 2 in casing 1, its characterized in that: the left plug connector 3 and the right plug connector 4 are fixed on the shell 1, the left plug connector 3 and the right plug connector 4 are fixedly provided with a left plug pin 5 and a right plug pin 6, the left plug pin 5 and the right plug pin 6 are positioned in the shell 1, the circuit board 2 is provided with a socket (not shown) connected with the left plug pin 5 and the right plug pin 6, the shell 1 is connected with the circuit board 2 through a positioning component, the positioning component comprises a first positioning column 8 and a second positioning column 9 which are fixedly arranged in the shell 1, the first positioning column 8 and the second positioning column 9 are diagonally arranged, the periphery of the first positioning column 8 is fixedly provided with a fixing plate 10 fixedly connected with the shell 1, the periphery of the second positioning column 9 is fixedly provided with a fixing block 11 fixedly connected with the shell 1, the positioning column is provided with an auxiliary effect of reinforcing fixing through the fixing plate and the fixing block, the middle part of the shell 1 is fixedly provided with a connecting ring 12, the connecting ring 12 is fixedly connected with the fixing plate 10 close to the connecting ring 12 through a first connecting rod 13, the connecting ring 12 is fixedly connected with the fixing block 11 close to the connecting ring 12 through a second connecting rod 7, a first guide post 14 and a second guide post 15 are respectively fixed on the first guide post 8 and the second guide post 9, the radius of the first guide post 14 and the radius of the second guide post 15 are smaller than those of the first guide post 8 and the second guide post 9, the radius of the guide post is smaller than that of the guide post, after the circuit board is assembled, the lower end face of the circuit board is abutted against the guide post, the circuit board is supported, a through hole 16 matched with the first guide post 14 and the second guide post 15 is formed in the circuit board 2, when a socket and a plug of the circuit board are matched and installed, due to the fact that the first positioning column and the second positioning column are arranged, the first positioning column and the second positioning column are arranged diagonally, through holes corresponding to the positioning columns are formed in the circuit board, the functions of guiding and identifying the directions are achieved, when the circuit board is assembled in a rotating mode, the through holes are required to be aligned with the positioning columns, the function of convenient assembly is achieved, and the phenomenon that a socket of the circuit board does not correspond to a plug is avoided.
The utility model is further provided with: be equipped with upper cover 17 on the casing 1, the lower fixed surface of upper cover 17 has round fixed strip 18, set up round and casing 1 frame looks adaptation's fluting 19 on the fixed strip 18, set up the frame of casing in the fixed strip, played spacing effect to the upper cover, avoided upper cover and casing to match the installation when, the installation does not correspond, the phenomenon of dislocation takes place, the surface of casing 1 is fixed with sand grip 20 all around, the up end of sand grip 20 is contradicted with the lower terminal surface of fixed strip 18 and is connected, has played fixed effect to the circuit board through setting up the upper cover.
The utility model is further provided with: the lower surface of upper cover 17 is fixed with protection pad 21, protection pad 21 is located fixed strip 18, and the lower terminal surface of protection pad is contradicted with the circuit board and is connected, through setting up the protection pad, has played the effect of protection to the circuit board, has avoided taking place hard between circuit board and the upper cover to bump hard phenomenon.
The utility model is further provided with: the outside of casing 1 is fixed with fixed disc 22, fixed disc 22's below is equipped with the supporting shoe 23 with casing 1 fixed connection, fixed hole 24 has been seted up on the fixed disc 22, through setting up fixed disc and set up the fixed hole on fixed disc, makes things convenient for casing and vehicle to carry out fixed mounting.
The utility model is further provided with: the left plug connector 3 and the right plug connector 4 are fixedly connected with the connecting ring 12 through the connecting strip 25, the connecting strip 25 is positioned in the shell 1, and the connecting strip is arranged, so that the fixed connection effect of the plug connector and the connecting ring is enhanced.
The utility model is further provided with: the left contact pin 5 is provided with five contact pins and the right contact pin 6 is provided with eight contact pins.
The utility model is further provided with: the fixing strips 18 and the raised strips 20 are fixedly connected through glue, so that the upper cover is conveniently and fixedly arranged on the shell.
The above description is merely of preferred embodiments of the present utility model, and the present utility model is not limited to the above embodiments, and any modifications, adaptations or equivalent substitutions made by those skilled in the art based on the above description fall within the scope of the present utility model.
Claims (7)
1. The utility model provides a nitrogen oxygen sensor, includes casing and is located the circuit board in the casing, its characterized in that: the novel circuit board is characterized in that a left plug connector and a right plug connector are fixed on the shell, a left plug pin and a right plug pin are fixed on the left plug connector and the right plug connector, the left plug pin and the right plug pin are located in the shell, a socket connected with the left plug pin and the right plug pin is arranged on the circuit board, the shell is connected with the circuit board through a locating component, the locating component comprises a first locating column and a second locating column which are fixedly arranged in the shell, the first locating column and the second locating column are diagonally arranged, fixing plates fixedly connected with the shell are fixed on the periphery of the first locating column, fixing blocks fixedly connected with the shell are fixed on the periphery of the second locating column, a connecting ring is fixed in the middle of the shell, the connecting ring is fixedly connected with the fixing plates close to the connecting ring through a first connecting rod, a first guide column and a second guide column are fixedly arranged on the first locating column and the second locating column respectively through a second connecting rod, and a first guide column and a second guide column are matched with a first guide column are arranged on the radius of the first guide column and the second guide column.
2. A nitrogen-oxygen sensor according to claim 1, wherein: the shell is provided with an upper cover, the lower surface of the upper cover is fixedly provided with a circle of fixing strip, the fixing strip is provided with a circle of slots matched with the frame of the shell, the periphery of the outer surface of the shell is fixedly provided with a convex strip, and the upper end face of the convex strip is in abutting connection with the lower end face of the fixing strip.
3. A nitrogen-oxygen sensor according to claim 2, wherein: the lower surface of the upper cover is fixedly provided with a protection pad, and the protection pad is positioned in the fixing strip.
4. A nitrogen-oxygen sensor according to claim 3, wherein: the outer side of the shell is fixedly provided with a fixed disc, a supporting block fixedly connected with the shell is arranged below the fixed disc, and a fixed hole is formed in the fixed disc.
5. A nitrogen-oxygen sensor according to claim 4, wherein: the left plug connector and the right plug connector are fixedly connected with the connecting ring through connecting strips, and the connecting strips are positioned in the shell.
6. A nitrogen-oxygen sensor according to claim 5, wherein: the left contact pin is provided with five contact pins and the right contact pin is provided with eight contact pins.
7. A nitrogen-oxygen sensor according to claim 6, wherein: the fixing strips are fixedly connected with the convex strips through glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320160739.3U CN218958141U (en) | 2023-01-12 | 2023-01-12 | Nitrogen-oxygen sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320160739.3U CN218958141U (en) | 2023-01-12 | 2023-01-12 | Nitrogen-oxygen sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218958141U true CN218958141U (en) | 2023-05-02 |
Family
ID=86139994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320160739.3U Active CN218958141U (en) | 2023-01-12 | 2023-01-12 | Nitrogen-oxygen sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218958141U (en) |
-
2023
- 2023-01-12 CN CN202320160739.3U patent/CN218958141U/en active Active
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