CN214092076U

CN214092076U - Sensor for exhaust gas recirculation valve

Info

Publication number: CN214092076U
Application number: CN202022565867.5U
Authority: CN
Inventors: 杨建敏; 冯略; 冯涛
Original assignee: Wenzhou Pinyi Automobile Accessory Co ltd
Current assignee: Wenzhou Pinyi Automobile Accessory Co ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-08-31
Anticipated expiration: 2030-11-09

Abstract

The utility model discloses a sensor for exhaust gas recirculation valve, including valve body and sensor body, the top fixedly connected with casing of valve body, the equal fixedly connected with installation piece in bottom of casing both sides, the bottom fixedly connected with fixed plate of casing inner chamber, the through-hole has been seted up to the inner chamber of fixed plate, the top of fixed plate and the equal fixedly connected with fixed column in top of casing inner chamber, the surface cover of fixed column is equipped with the spring, the quantity of spring is two, the one end of fixed column and the one end fixed connection of sensor body are kept away from to the spring. The utility model discloses a cooperation of valve body, sensor body, casing, installation piece, fixed plate, through-hole, fixed column, spring and protection portion is used, can effectual extension sensor body's life to can make better the installing of sensor body in the valve body, protect the sensor body not receive the damage.

Description

Sensor for exhaust gas recirculation valve

Technical Field

The utility model relates to a sensor technical field specifically is a sensor for exhaust gas recirculation valve.

Background

The automobile exhaust gas recirculation system is used for reducing the discharge amount of nitrogen oxide in exhaust gas and reducing the pollution of the exhaust gas of an automobile to the atmosphere, nitrogen and oxygen can only chemically react under the conditions of high temperature and high pressure, the temperature and the pressure in a combustion chamber of an engine meet the conditions, particularly during forced acceleration, when the engine runs under load, the automobile exhaust gas recirculation valve is opened, a small amount of exhaust gas enters an air inlet pipe and enters the combustion chamber together with combustible mixed gas, the automobile exhaust gas recirculation valve is closed during idling, almost no exhaust gas is recirculated to the engine, but the installation and the protection effects of a sensor in the existing exhaust gas recirculation valve are poor, the sensor is easy to damage due to bumping when in use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sensor for exhaust gas recirculation valve possesses the advantage that the protecting effect is good, and it is relatively poor with the protecting effect to have solved the sensor installation among the current exhaust gas recirculation valve, appears damaging easily to the sensor receives the problem that jolts and lead to damaging easily when using.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a sensor for exhaust gas recirculation valve, includes valve body and sensor body, the top fixedly connected with casing of valve body, the equal fixedly connected with installation piece in bottom of casing both sides, the bottom fixedly connected with fixed plate of casing inner chamber, the through-hole has been seted up to the inner chamber of fixed plate, the top of fixed plate and the equal fixedly connected with fixed column in top of casing inner chamber, the surface cover of fixed column is equipped with the spring, the quantity of spring is two, the one end that the fixed column was kept away from to the spring and the one end fixed connection of sensor body, the fixed surface of sensor body is connected with the guard portion.

Preferably, the mounting block is fixedly connected with the valve body through a bolt, and a sealing gasket is arranged between the valve body and the shell.

Preferably, the protection part comprises a heat insulation layer, the surface of the heat insulation layer is fixedly connected with a corrosion-resistant layer, and the surface of the corrosion-resistant layer is fixedly connected with a wear-resistant layer.

Preferably, the thermal insulation layer is made of aerogel felt, the corrosion-resistant layer is made of a carbon fiber-resin composite material, and the wear-resistant layer is made of nitrile rubber.

Preferably, both sides at casing inner chamber top are all fixedly connected with the stopper, one side of stopper contacts with the both sides of protection part.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a valve body, sensor body, casing, installation piece, fixed plate, through-hole, fixed column, spring and protection portion's cooperation is used, can effectual extension sensor body's life to can make better the installing in the valve body of sensor body, protect sensor body not receive the damage, it is relatively poor with the protective effect to have solved the sensor installation among the current exhaust gas recirculation valve, appear damaging easily, and the sensor receives the problem that jolts easily and lead to the damage when using.

2. The utility model discloses a set up the installation piece, can fix the better installation of casing on the valve body, through setting up the protection portion, protection sensor body that can be better does not receive the damage, through setting up the insulating layer, can effectual isolated outside heat, improve the sensing precision, through setting up the corrosion resistant layer, can effectual improvement sensor body corrosion resistance, through setting up the wearing layer, the wearing property of improvement sensor body that can be better, increase of service life, through setting up the stopper, can prevent that the skew from appearing in the sensor body.

Drawings

FIG. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is a schematic view of the external structure of the present invention;

fig. 3 is a schematic view of the structure of the protection part of the present invention.

In the figure: 1. a valve body; 2. a sensor body; 3. a housing; 4. mounting blocks; 5. a fixing plate; 6. a through hole; 7. fixing a column; 8. a spring; 9. a protective part; 901. a thermal insulation layer; 902. a corrosion-resistant layer; 903. a wear layer; 10. and a limiting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The components of the present invention are all standard components or components known to those skilled in the art, and the structure and principle thereof can be known by the technical manual or by the conventional experimental method.

Referring to fig. 1-3, a sensor for an exhaust gas recirculation valve comprises a valve body 1 and a sensor body 2, wherein the top of the valve body 1 is fixedly connected with a housing 3, two sides of the top of an inner cavity of the housing 3 are fixedly connected with limit blocks 10, one side of each limit block 10 is in contact with two sides of a protection part 9, the sensor body 2 can be prevented from deviating by arranging the limit blocks 10, the bottoms of two sides of the housing 3 are fixedly connected with mounting blocks 4, the mounting blocks 4 are fixedly connected with the valve body 1 through bolts, a sealing gasket is arranged between the valve body 1 and the housing 3, the housing 3 can be better mounted and fixed on the valve body 1 by arranging the mounting blocks 4, the bottom of the inner cavity of the housing 3 is fixedly connected with a fixing plate 5, the inner cavity of the fixing plate 5 is provided with a through hole 6, and the top of the fixing plate 5 and the top of the inner cavity of the housing 3 are fixedly connected with a fixing column 7, the surface of the fixed column 7 is sleeved with two springs 8, one end of each spring 8, which is far away from the fixed column 7, is fixedly connected with one end of the sensor body 2, the surface of the sensor body 2 is fixedly connected with a protection part 9, the protection part 9 comprises a heat insulation layer 901, the surface of the heat insulation layer 901 is fixedly connected with a corrosion-resistant layer 902, the surface of the corrosion-resistant layer 902 is fixedly connected with a wear-resistant layer 903, the sensor body 2 can be better protected from being damaged by arranging the protection part 9, the heat insulation layer 901 is made of aerogel felt, the corrosion-resistant layer 902 is made of a carbon fiber-resin composite material, the wear-resistant layer 903 is made of nitrile rubber, external heat can be effectively isolated by arranging the heat insulation layer 901, the sensing precision is improved, the corrosion resistance of the sensor body 2 can be effectively improved by arranging the corrosion-resistant layer 902, and by arranging the wear-resistant layer 903, the wear resistance of improvement sensor body 2 that can be better, increase of service life, through valve body 1, sensor body 2, casing 3, installation piece 4, fixed plate 5, through-hole 6, fixed column 7, spring 8 and protection part 9's cooperation is used, can effectual extension sensor body 2's life, and can make sensor body 2 better install in valve body 1, protection sensor body 2 does not receive the damage, it is relatively poor with the protective effect to have solved the sensor installation in the current exhaust gas recirculation valve, the damage appears easily, and the sensor receives the problem that jolts easily and lead to the damage when using.

During the use, with casing 3 through installation piece 4 fixed mounting on valve body 1, spring 8 can effectually prevent that sensor body 2 from appearing damaging when meetting jolting, through insulating layer 901, can effectual isolated outside heat, improve the sensing precision, through corrosion-resistant layer 902, can effectual improvement sensor body 2 corrosion resisting property, through wearing layer 903, can be better improve sensor body 2's wear resistance, increase of service life.

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

Claims

1. A sensor for an exhaust gas recirculation valve, comprising a valve body (1) and a sensor body (2), characterized in that: the valve comprises a valve body (1), a shell (3) is fixedly connected to the top of the valve body (1), mounting blocks (4) are fixedly connected to the bottoms of the two sides of the shell (3), a fixing plate (5) is fixedly connected to the bottom of the inner cavity of the shell (3), through holes (6) are formed in the inner cavity of the fixing plate (5), fixing columns (7) are fixedly connected to the tops of the top of the fixing plate (5) and the top of the inner cavity of the shell (3), springs (8) are sleeved on the surfaces of the fixing columns (7), the number of the springs (8) is two, one ends of the springs (8) far away from the fixing columns (7) are fixedly connected with one ends of a sensor body (2), and a protection portion (9) is fixedly connected.

2. A sensor for an exhaust gas recirculation valve according to claim 1, wherein: the mounting block (4) is fixedly connected with the valve body (1) through a bolt, and a sealing gasket is arranged between the valve body (1) and the shell (3).

3. A sensor for an exhaust gas recirculation valve according to claim 1, wherein: the protective part (9) comprises a heat insulation layer (901), the surface of the heat insulation layer (901) is fixedly connected with a corrosion-resistant layer (902), and the surface of the corrosion-resistant layer (902) is fixedly connected with a wear-resistant layer (903).

4. A sensor for an exhaust gas recirculation valve according to claim 3, wherein: the thermal insulation layer (901) is made of aerogel felt, the corrosion-resistant layer (902) is made of a carbon fiber-resin composite material, and the wear-resistant layer (903) is made of nitrile rubber.

5. A sensor for an exhaust gas recirculation valve according to claim 1, wherein: the equal fixedly connected with stopper (10) in both sides at casing (3) inner chamber top, one side of stopper (10) contacts with the both sides of protection part (9).