Novel electric control EGR (Exhaust Gas Recirculation) valve

Abstract

The utility model discloses a novel electric control EGR valve, relates to the technical field of EGR valves, solves the problems that an existing device is low in sealing performance and inconvenient to mount and dismount, and adopts the following scheme that a valve body matched with a mounting cavity in specification is assembled in the mounting cavity, and a flange A is fixedly mounted on the top surface of a sealing shell; and six groups of flange holes A with opposite positions are formed in the top surface of the flange A. According to the novel electric control EGR valve, through the arrangement of the flange A, the flange B and the valve body, the valve body and the sealing shell are connected through the flange A and the flange B, the sealing performance of connection is high, waste gas is prevented from leaking out from the connecting position, and the using effect of the device is improved; and meanwhile, through the arrangement of the containing cavity and the sealing box cover, the motor, the sensor and the circuit board are installed in the containing cavity, then the sealing box cover is installed on the containing cavity, finally, the valve body is integrally installed in the installation cavity through the flange, installation is easy and convenient, and later disassembly and maintenance are also facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to EGR valve technical field, concretely is a novel electric control EGR valve. BACKGROUND

[0002] EGR translates into Chinese is exhaust gas recirculation system, the working process is that the small part of the exhaust gas that the fuel in the engine burns into is sent back to the cylinder, lets this part of exhaust gas participate in the next combustion, because the addition of this part of exhaust gas, the environment in the cylinder has changed, reduced the highest temperature when burning, changed the oxygen concentration in the cylinder, effectively checked the generation of NOx.

[0003] Through the retrieval, the application of patent announcement No. CN212716935U discloses an electric control EGR valve, including the valve body that is penetrated with motor drive cavity, the motor drive mechanism is arranged in the motor drive cavity, the exhaust gas inlet channel and exhaust gas outlet channel that are penetrated each other are opened in the valve body, the valve body is fixed and blocked with the guide sleeve at the penetration mouth that is penetrated with the motor drive cavity, the center rod is coaxially movably penetrated and arranged in the guide sleeve, one end of the center rod extends into the inside of the motor drive cavity, so that the motor drive mechanism and the motor are protected, and the service life is improved;

[0004] But because the setting of valve body and motor drive cavity, the overall structure of device is complex, and the sealing property is low, so as to cause the poor use effect of device, and simultaneously because the complex structure of device, the installation of valve body is inconvenient, and the later disassembly and maintenance are not convenient, increase the time and cost of maintenance.

[0005] Therefore, we propose a novel electric control EGR valve. CONTENT OF UTILITY MODEL

[0006] In view of the deficiency of prior art, the utility model provides a novel electric control EGR valve, solves the problem of low sealing property and inconvenient installation and disassembly of prior art device.

[0007] In order to achieve the above object, the utility model is realized through the following technical scheme: a novel electric control EGR valve, including the sealed shell, the top surface of the sealed shell is equipped with the installation cavity;

[0008] The installation cavity is assembled with the valve body of specification adaptation, the top surface of the sealed shell is fixedly installed with the flange A, the top surface of the flange A is equipped with six groups of flange holes A that are opposite in position, the outer wall of the valve body is fixedly installed with the flange B that is opposite in position and is adapted in specification, the top surface of the flange B is equipped with six groups of flange holes B that are opposite in position, the top surface of the valve body is fixedly installed with the electric control box, and the electric control box is integrally manufactured with the valve body;

[0009] The top surface of the electric control box is provided with a placing cavity extending into the valve body, and the top surface of the electric control box is equipped with a sealing box cover with appropriate size.

[0010] Preferably, the bottom surface of the sealing shell is equipped with an air inlet, and the outer wall of the sealing shell is equipped with an air outlet, and the air inlet and the air outlet are connected with pipelines through threads, so that the air inlet pipe and the air outlet pipe can be connected with the device.

[0011] Preferably, the bottom surface of the valve body is fixedly provided with a sealing gasket made of rubber material, so as to prevent the air inlet and the air outlet from being communicated and improve the control effect of the valve.

[0012] Preferably, the electric control box is made of heat-conducting material, so as to improve the heat dissipation performance of the electric control box and maintain the sealing property of the electric control box.

[0013] Preferably, the top surface of the flange B is fixedly provided with positionally opposite positioning marks, so as to position the installation of the valve body and improve the accuracy of the installation.

[0014] Preferably, the outer wall of the electric control box is equipped with a power line connected with the circuit board, so as to improve the sealing property of the electric control box and facilitate the connection between the circuit board in the electric control box and the power line.

[0015] 1. The novel electric control EGR valve is characterized in that the flanges A and B and the valve body are arranged, the valve body and the sealing shell are connected through the flanges A and B, the connection has high sealing property, the exhaust gas is prevented from leaking out from the connection, and the use effect of the device is improved.

[0016] 2. Meanwhile, the motor, the sensor and the circuit board are arranged in the placing cavity, the sealing box cover is arranged on the placing cavity, and finally the valve body is integrally arranged in the installation cavity through the flange, so that the installation is simple and convenient, and the device is convenient for later disassembly and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure schematic view of the whole utility model;

[0018] Figure 2 It is a structure schematic view of the shell of the utility model;

[0019] Figure 3 It is a structure schematic view of the valve body of the utility model;

[0020] Figure 4 It is a structure schematic view of the electric control box of the utility model.

[0021] In the diagram: 1. Sealing shell; 2. Air inlet; 3. Exhaust outlet; 4. Mounting cavity; 5. Valve body; 6. Flange A; 7. Flange hole A; 8. Flange B; 9. Flange hole B; 10. Electrical control box; 11. Placement cavity; 12. Sealing box cover; 13. Sealing gasket; 14. Positioning mark. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1: As Figures 1-4 As shown: A valve body 5 of the same specifications is assembled in the mounting cavity 4. A flange A6 is fixedly installed on the top surface of the sealing shell 1. The top surface of flange A6 has six sets of flange holes A7 with opposite positions. A flange B8 of the same specifications with opposite positions is fixedly installed on the outer wall of the valve body 5. The top surface of flange B8 has six sets of flange holes B9 with opposite positions. An electrical control box 10 is fixedly installed on the top surface of the valve body 5. The electrical control box 10 is integrally manufactured with the valve body 5. Through the arrangement of flange A6, flange B8 and valve body 5, the valve body 5 and the sealing shell 1 are connected through flange A6 and flange B8. The connection has high sealing performance, preventing exhaust gas from leaking out from the connection and improving the use effect of the device.

[0024] Example 2: As Figures 2-4 As shown: The top surface of the electrical control box 10 has a placement cavity 11 that extends into the valve body 5. The top surface of the electrical control box 10 is equipped with a sealing cover 12 of the same specification. The placement cavity 11 is equipped with a connected motor, sensor and circuit board. By setting the placement cavity 11 and the sealing cover 12, the motor, sensor and circuit board are installed in the placement cavity 11. Then the sealing cover 12 is installed on the placement cavity 11. Finally, the valve body 5 is installed in the installation cavity 4 through the flange. The installation is simple and convenient, and it is also convenient for later disassembly and maintenance.

[0025] Example 3: As Figures 2-3 As shown: A sealing gasket 13 made of rubber material is fixedly installed on the bottom surface of the valve body 5. This can prevent the air inlet 2 and the exhaust port 3 from communicating with each other and improve the control effect of the valve.

[0026] The working principle and use process of the utility model: when the device needs to work, the valve body 5 and the sealing shell 1 are connected through the flange A 6 and the flange B 8, the sealing property of connection is high, prevents the exhaust gas from leaking out from the connecting place, improves the use effect of the device, simultaneously installs the motor, the sensor and the circuit board in the placing cavity 11, again installs the sealing box cover 12 on the placing cavity 11, finally installs the valve body 5 in the mounting cavity 4 through the flange, and the installation is simple and convenient, also is convenient for the disassembly and maintenance of later period.

[0027] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, for those skilled in the art, obviously, the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0028] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, the description manner of the specification is only for the sake of clarity, those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A novel electric control EGR valve, comprising a sealed shell (1), a mounting cavity (4) is formed in the top surface of the sealed shell (1); characterized in that A valve body (5) with matched size is assembled in the mounting cavity (4), a flange A (6) is fixedly installed on the top surface of the sealed shell (1), six groups of flange holes A (7) with opposite positions are formed in the top surface of the flange A (6), flange B (8) with matched size and opposite positions is fixedly installed on the outer wall of the valve body (5), six groups of flange holes B (9) with opposite positions are formed in the top surface of the flange B (8), an electric control box (10) is fixedly installed on the top surface of the valve body (5), and the electric control box (10) is integrally manufactured with the valve body (5); A placing cavity (11) extending into the valve body (5) is formed in the top surface of the electric control box (10), a sealing box cover (12) with matched size is assembled on the top surface of the electric control box (10), and a motor, a sensor and a circuit board connected with each other are assembled in the placing cavity (11).

2. A novel electronically controlled EGR valve according to claim 1, characterized in that: An air inlet (2) is assembled on the bottom surface of the sealed shell (1), an air outlet (3) is assembled on the outer wall of the sealed shell (1), and the air inlet (2) and the air outlet (3) are connected with pipelines through threads.

3. A novel electronically controlled EGR valve according to claim 1, characterized in that: A sealing gasket (13) made of rubber material is fixedly installed on the bottom surface of the valve body (5).

4. A novel electronically controlled EGR valve according to claim 1, characterized in that: The electric control box (10) is made of heat-conducting material.

5. A novel electronically controlled EGR valve according to claim 1, characterized in that: Positioning marks (14) with opposite positions are fixedly installed on the top surface of the flange B (8).

6. A novel electronically controlled EGR valve according to claim 1, characterized in that: Power lines connected with the circuit board are assembled on the outer wall of the electric control box (10).

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