Nitrogen and oxygen sensor for vehicle

Abstract

The utility model discloses a vehicle nitrogen oxygen sensor, including installation module and install the sensor body, first circuit board and second circuit board on the installation module, the installation module includes first installation piece and second installation piece, the first installation piece and the second installation piece axial symmetry, the first installation part is sequentially provided with a first arc structure, a second arc structure, a third arc structure, a fourth arc structure, a fifth arc structure and a sixth arc structure which are tightly attached in the first direction. According to the nitrogen-oxygen sensor for the vehicle disclosed by the utility model, the sensor body is stably mounted on the mounting module through linkage of the mounting module, the sensor body, the first circuit board and the second circuit board, and the first circuit board and the second circuit board are convenient to disassemble and assemble, so that the nitrogen-oxygen sensor for the vehicle has the advantages of stable structure, high practicability, high safety and the like.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of nitrogen oxygen sensor for vehicle, concretely relates to a nitrogen oxygen sensor for vehicle. BACKGROUND

[0002] The nitrogen oxygen sensor for vehicle (NOx sensor) is a key part in the automobile exhaust treatment system, and is mainly used for detecting the content of nitrogen oxide (NOx) in the exhaust gas to ensure that the emission meets the environmental protection standards.

[0003] Many sensors nowadays are relatively simple when installing, so that the sensor body is prone to loosening and shaking, thereby affecting the detection work.

[0004] Therefore, in view of the above problems, further improvement is needed. INVENTION CONTENTS

[0005] The main purpose of the utility model is to provide a nitrogen oxygen sensor for vehicle, which is firmly installed in the mounting module through the linkage of the mounting module, the sensor body, the first circuit board and the second circuit board, and the first circuit board and the second circuit board are convenient to disassemble and assemble, and have the advantages of stable structure, high practicability and high safety.

[0006] To achieve the above purpose, the utility model provides a nitrogen oxygen sensor for vehicle, which comprises a mounting module and a sensor body, a first circuit board and a second circuit board mounted on the mounting module, the mounting module comprises a first mounting piece and a second mounting piece, the first mounting piece and the second mounting piece are axisymmetric, and wherein:

[0007] The first mounting piece is sequentially provided with a first circular arc structure, a second circular arc structure, a third circular arc structure, a fourth circular arc structure, a fifth circular arc structure and a sixth circular arc structure in the first direction;

[0008] The second mounting piece is sequentially provided with a seventh circular arc structure, an eighth circular arc structure, a ninth circular arc structure, a tenth circular arc structure, an eleventh circular arc structure and a twelfth circular arc structure in the first direction;

[0009] The first circular arc structure and the seventh circular arc structure constitute a first placement circular arc, the second circular arc structure and the eighth circular arc structure constitute a second placement circular arc, the third circular arc structure and the ninth circular arc structure constitute a third placement circular arc, the fourth circular arc structure and the tenth circular arc structure constitute a fourth placement circular arc, the fifth circular arc structure and the eleventh circular arc structure constitute a fifth placement circular arc, and the sixth circular arc structure and the twelfth circular arc structure constitute a sixth placement circular arc;

[0010] The sensor body is provided with a first mounting ring, a second mounting ring, a third mounting ring, a fourth mounting ring, a fifth mounting ring and a sixth mounting ring, the sizes (diameters) of the adjacent rings are different, the first mounting ring is mounted on the first placing arc, the second mounting ring is mounted on the second placing arc, the third mounting ring is mounted on the third placing arc, the fourth mounting ring is mounted on the fourth placing arc, the fifth mounting ring is mounted on the fifth placing arc, and the sixth mounting ring is mounted on the sixth placing arc (mounting the rings on the arcs, the sizes of the adjacent rings are different, thereby forming a concave-convex shape, and the sensor body is better fixed and mounted between the first mounting piece and the second mounting piece).

[0011] As a further preferred technical solution of the above technical solution, the first mounting piece is further provided with a first fixed end and a second fixed end, the second mounting piece is further provided with a third fixed end and a fourth fixed end, and the first fixed end and the third fixed end are in close contact and the second fixed end and the fourth fixed end are in close contact (the first mounting piece and the second mounting piece are tightly mounted through the fixed holes).

[0012] As a further preferred technical solution of the above technical solution, the first mounting piece and the second mounting piece are both provided with a mounting end (for mounting the entire sensor at a predetermined position).

[0013] As a further preferred technical solution of the above technical solution, the side of the first mounting piece away from the second mounting piece is provided with a first mounting groove, and the side of the second mounting piece away from the first mounting piece is provided with a second mounting groove, the first circuit board is mounted in the first mounting groove, and the second circuit board is mounted in the second mounting groove (the insertion placement is convenient for quick mounting and dismounting).

[0014] As a further preferred technical solution of the above technical solution, the first circuit board and the second circuit board are respectively electrically connected with the sensor body (for data transmission). BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a structural schematic diagram of the utility model.

[0016] Fig. 2 It is a structural schematic diagram of the installation module of the utility model.

[0017] Fig. 3 It is a structural schematic diagram of the sensor body of the utility model.

[0018] The reference signs include: 10, first mounting piece; 11, first circular arc structure; 12, second circular arc structure; 13, third circular arc structure; 14, fourth circular arc structure; 15, fifth circular arc structure; 16, sixth circular arc structure; 17, first fixed end; 18, second fixed end; 191, mounting end; 192, first mounting slot; 20, second mounting piece; 21, seventh circular arc structure; 22, eighth circular arc structure; 23, ninth circular arc structure; 24, tenth circular arc structure; 25, eleventh circular arc structure; 26, twelfth circular arc structure; 27, third fixed end; 28, fourth fixed end; 29, second mounting slot; 30, sensor body; 31, first mounting ring; 32, second mounting ring; 33, third mounting ring; 34, fourth mounting ring; 35, fifth mounting ring; 36, sixth mounting ring; 40, first circuit board; 50, second circuit board. DETAILED DESCRIPTION

[0019] The following description is provided so as to enable any person skilled in the art to practice the present application. The preferred embodiments described below are merely exemplary and those skilled in the art can devise other obvious variations without departing from the spirit and scope of the present application. The principles defined in the following description can be applied to other embodiments, variations, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present application.

[0020] The utility model discloses a nitrogen oxygen sensor for vehicle, below combining preferred embodiment, the specific embodiment of utility model is further described.

[0021] In the embodiments of the present application, those skilled in the art should note that the preset position and the like involved in the present application can be regarded as the prior art.

[0022] Preferred embodiment.

[0023] As Figs. 1-3 The utility model discloses a nitrogen oxygen sensor for vehicle, including installation module and install sensor body 20, first circuit board 30 and second circuit board 40 of installation module, installation module includes first mounting piece 10 and second mounting piece 20, first mounting piece 10 with second mounting piece 20 axis symmetry, wherein:

[0024] First mounting piece 10 is equipped with close first circular arc structure 11, second circular arc structure 12, third circular arc structure 13, fourth circular arc structure 14, fifth circular arc structure 15 and sixth circular arc structure 16 in first direction in proper order;

[0025] The second mounting piece 20 is sequentially provided with close seventh, eighth, ninth, tenth, eleventh and twelfth circular arc structures 21, 22, 23, 24, 25 and 26 in the first direction;

[0026] The first and seventh circular arc structures 11 and 21 constitute a first placement circular arc, the second and eighth circular arc structures 12 and 22 constitute a second placement circular arc, the third and ninth circular arc structures 13 and 23 constitute a third placement circular arc, the fourth and tenth circular arc structures 14 and 24 constitute a fourth placement circular arc, the fifth and eleventh circular arc structures 15 and 25 constitute a fifth placement circular arc, and the sixth and twelfth circular arc structures 16 and 26 constitute a sixth placement circular arc.

[0027] The sensor body 30 is provided with first, second, third, fourth, fifth and sixth mounting rings 31, 32, 33, 34, 35 and 36, the sizes (diameters) of which are different between adjacent rings, the first mounting ring 31 is mounted on the first placement circular arc, the second mounting ring 32 is mounted on the second placement circular arc, the third mounting ring 33 is mounted on the third placement circular arc, the fourth mounting ring 34 is mounted on the fourth placement circular arc, the fifth mounting ring 35 is mounted on the fifth placement circular arc, and the sixth mounting ring 36 is mounted on the sixth placement circular arc (mounting the rings on the circular arcs, the sizes of which are different between adjacent rings, thereby forming a concave-convex shape, and further better fixing and mounting the sensor body between the first and second mounting pieces).

[0028] Specifically, the first mounting piece 10 is further provided with first and second fixing ends 17 and 18, and the second mounting piece 20 is further provided with third and fourth fixing ends 27 and 28, the first and third fixing ends 17 and 27 are close to each other, and the second and fourth fixing ends 18 and 28 are close to each other (fastening and mounting the first and second mounting pieces through the fixing holes).

[0029] More specifically, the first and second mounting pieces 10 and 20 are both provided with mounting ends 191 (for mounting the entire sensor at a predetermined position).

[0030] Further, the side of the first mounting piece 10 away from the second mounting piece 20 is provided with a first mounting groove 192, and the side of the second mounting piece 20 away from the first mounting piece 10 is provided with a second mounting groove 29, the first circuit board 40 is mounted on the first mounting groove 192, and the second circuit board 50 is mounted on the second mounting groove 29 (the placement of the plug-in facilitates quick mounting and dismounting).

[0031] Further, the first circuit board 40 and the second circuit board 50 are respectively electrically connected (for data transmission) with the sensor body 30.

[0032] It is worth mentioning that the preset position and other technical features involved in the utility model patent application should be regarded as prior art, and the specific structure, working principle and possible control mode and spatial arrangement mode of these technical features can be selected conventionally in the art, and should not be regarded as the invention point of the utility model patent, and the utility model patent will not be further expanded and described in detail.

[0033] For those skilled in the art, the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A nitrogen oxide sensor for vehicles, characterized by comprising: The mounting module and the sensor body, the first circuit board and the second circuit board mounted on the mounting module are included, the mounting module includes a first mounting member and a second mounting member, and the first mounting member and the second mounting member are axisymmetric, wherein: The first mounting member is sequentially provided with a first circular arc structure, a second circular arc structure, a third circular arc structure, a fourth circular arc structure, a fifth circular arc structure and a sixth circular arc structure in a first direction; The second mounting member is sequentially provided with a seventh circular arc structure, an eighth circular arc structure, a ninth circular arc structure, a tenth circular arc structure, an eleventh circular arc structure and a twelfth circular arc structure in a first direction; The first circular arc structure and the seventh circular arc structure constitute a first placement circular arc, the second circular arc structure and the eighth circular arc structure constitute a second placement circular arc, the third circular arc structure and the ninth circular arc structure constitute a third placement circular arc, the fourth circular arc structure and the tenth circular arc structure constitute a fourth placement circular arc, the fifth circular arc structure and the eleventh circular arc structure constitute a fifth placement circular arc, and the sixth circular arc structure and the twelfth circular arc structure constitute a sixth placement circular arc; The sensor body is provided with a first mounting ring, a second mounting ring, a third mounting ring, a fourth mounting ring, a fifth mounting ring and a sixth mounting ring, the sizes of adjacent rings are different, the first mounting ring is mounted on the first placement circular arc, the second mounting ring is mounted on the second placement circular arc, the third mounting ring is mounted on the third placement circular arc, the fourth mounting ring is mounted on the fourth placement circular arc, the fifth mounting ring is mounted on the fifth placement circular arc, and the sixth mounting ring is mounted on the sixth placement circular arc.

2. The nitrogen oxygen sensor for vehicle according to claim 1, characterized by The first mounting member is further provided with a first fixed end and a second fixed end, the second mounting member is further provided with a third fixed end and a fourth fixed end, the first fixed end and the third fixed end are in close contact, and the second fixed end and the fourth fixed end are in close contact.

3. The nitrogen oxygen sensor for vehicle according to claim 2, characterized by The first mounting member and the second mounting member are both provided with a mounting end.

4. The nitrogen oxygen sensor for vehicle according to claim 3, characterized by The side of the first mounting member away from the second mounting member is provided with a first mounting groove, and the side of the second mounting member away from the first mounting member is provided with a second mounting groove, the first circuit board is mounted on the first mounting groove, and the second circuit board is mounted on the second mounting groove.

5. The nitrogen oxygen sensor for vehicle according to claim 1, characterized by The first circuit board and the second circuit board are respectively electrically connected with the sensor body.

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