CN211116283U

CN211116283U - Electric injection air throttle

Info

Publication number: CN211116283U
Application number: CN201922378505.2U
Authority: CN
Inventors: 朱波; 余俊桦; 秦洁; 辜礼勇
Original assignee: Chongqing Zongshen General Power Machine Co Ltd
Current assignee: Chongqing Zongshen General Power Machine Co Ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-07-28
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses an electricity spouts air throttle, including throttle valve body (1) the up end of throttle valve body (1) is provided with step motor (2) the lower terminal surface below of throttle valve body (1) is provided with ECU circuit board (3), ECU circuit board (3) are connected with the lower terminal surface of throttle valve body (1) through circuit board shell (4). The utility model has the advantages of the integrated level is high, structural design is ingenious, practical reliable, low cost, adopt it not only to improve the performance of electricity spraying air throttle, improved compatibility, reduced the assembly degree of difficulty, practiced thrift manufacturing cost, moreover, still effectual dustproof waterproof performance that has improved service environment, has guaranteed the performance of product.

Description

Electric injection air throttle

Technical Field

The utility model relates to an air throttle, especially an electricity spouts air throttle.

Background

At present, in the small-sized general power industry, on one hand, a traditional electronic injection air throttle is low in integration level, single in function, complex to install and high in cost due to the fact that a sensor of an automobile air throttle is used; and on the other hand, the dustproof and waterproof performance is lower due to the lack of strict dustproof and waterproof design.

The invention discloses an invention patent application named 'an electronic injection throttle valve' in CN108869053A, which comprises a body, a throttle valve shaft, an ECU board and a motor, wherein the throttle valve shaft, the ECU board and the motor are arranged on the body, the ECU board is arranged in an accommodating cavity of the body, an air inlet temperature sensor is arranged at the air inlet end of a throat pipe of the body, the air inlet temperature sensor is connected with the ECU board, the throttle valve shaft penetrates through the throat pipe, a magnet rocker arm is arranged at the lower end of the throttle valve shaft, a Hall sensor is arranged on the ECU board, the chip sensing center of the Hall sensor and a magnet of the magnet rocker arm are coaxially arranged and have a gap, an annular groove is further arranged on the ECU board, the motor rocker arm is connected to a shaft of the motor, and the magnet rocker arm penetrates through the annular groove and the motor rocker arm. Although the electronic injection throttle valve with the structure can control the air inflow of air, the ECU circuit board in the structure has low integration level and few functions, meanwhile, the assembly of parts such as an air inlet temperature sensor is complex, the cost is high, and due to the limitation of the structure, the electronic injection throttle valve with the structure has low dustproof and waterproof performance and is easy to break down.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an integrated level is high, the assembly is simple, waterproof dirt-proof electricity spouts air throttle.

The utility model aims at realizing through such technical scheme, an electricity spouts air throttle, including the throttle valve body the up end of throttle valve body is provided with step motor the lower terminal surface below of throttle valve body is provided with the ECU circuit board, the ECU circuit board passes through the circuit board shell and is connected with the lower terminal surface of throttle valve body.

Further describe, circuit board shell inner chamber encloses into independent cavity A and independent cavity B with ECU circuit board up end, independent cavity A upwards extends to and forms the extension cavity in the throttle valve body extend cavity upper portion be provided with the trompil of throttle valve body's air flue intercommunication extend cavity upper portion and correspond trompil department and be provided with the temperature sensor that admits air that is connected with the ECU circuit board up end is provided with the pressure sensor that admits air that is arranged in independent cavity A and is arranged in the magnetism angle sensor of independent cavity B.

In order to improve the waterproof and dustproof effects, a circuit board shell sealing gasket is arranged between the circuit board shell and the lower end face of the throttle valve body.

Further, in the present invention, the throttle valve body includes a body, a throttle valve with a throttle shaft is provided in the body, the upper end and the lower end of the throttle shaft both pass through the body, the upper end of the throttle shaft is connected to a step motor through a gear mechanism, the lower end of the throttle shaft is provided with a throttle return rocker arm with a throttle return torsion spring, the lower end of the throttle return rocker arm is provided with a radial magnet, and the radial magnet corresponds to the magnetic angle sensor; and a throttle valve adjusting screw with a throttle valve screw spring is arranged on the body and corresponds to the upper end of the throttle valve return rocker arm.

The gear mechanism comprises a throttle shaft gear arranged at the upper end of a throttle shaft, and the throttle shaft gear is meshed with a stepping motor gear arranged on a stepping motor shaft.

In order to facilitate installation and simplify assembly, the stepping motor is connected with the upper end face of the throttle valve body through a stepping motor mounting plate.

In order to facilitate positioning during installation, a pair of positioning columns extending out of the lower end face of the stepping motor mounting plate are arranged on the lower end face of the stepping motor mounting plate, and the positioning columns are arranged oppositely; and a positioning hole matched with the positioning column is formed in the upper end face of the throttle valve body.

In order to prevent water and dust for the stepping motor, a stepping motor outer cover is arranged on the outer side of the stepping motor and is connected with the upper end face of the throttle valve body through a screw.

In order to improve the waterproof and dustproof effects. And a stepping motor outer cover sealing gasket is arranged between the lower end surface of the stepping motor outer cover and the upper end surface of the throttle valve body.

In order to further fix the stepping motor, a stepping motor pressing sponge which is pressed against the upper end face of the stepping motor is arranged in the stepping motor outer cover.

Since the technical scheme is used, the utility model has the advantages of the integrated level is high, structural design is ingenious, practical reliable, low cost, adopt it not only to improve the performance of electricity spraying air throttle, improved the compatibility, reduced the assembly degree of difficulty, practiced thrift manufacturing cost, moreover, still effectual dustproof and waterproof performance that has improved service environment, has guaranteed the performance of product.

Drawings

The drawings of the utility model are as follows:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a partial sectional view of an ECU circuit board according to the present invention;

FIG. 3 is a partial cross-sectional view of FIG. 1;

FIG. 4 is a schematic view of the structure of the mounting plate of the stepping motor of the present invention;

fig. 5 is a schematic structural diagram of the upper end face of the throttle valve body of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention will be provided with reference to the accompanying drawings, but the present invention is not limited to these embodiments, and any modifications or substitutions in the basic spirit of the embodiments will still fall within the scope of the present invention as claimed in the appended claims.

Example 1: as shown in fig. 1, the electronic injection throttle valve comprises a throttle valve body 1, wherein a stepping motor 2 is arranged on the upper end surface of the throttle valve body 1, an ECU circuit board 3 is arranged below the lower end surface of the throttle valve body 1, and the ECU circuit board 3 is connected with the lower end surface of the throttle valve body 1 through a circuit board shell 4.

As shown in fig. 2, further described, the inner cavity of the circuit board housing 4 and the upper end face of the ECU circuit board 3 enclose an independent cavity a5 and an independent cavity B28, the independent cavity a5 extends upwards into the throttle valve body 1 to form an extension cavity 6, an opening 8 communicating with the air passage 7 of the throttle valve body 1 is arranged at the upper part of the extension cavity 6, an intake air temperature sensor 9 connected with the ECU circuit board 3 is arranged at the upper part of the extension cavity 6 and corresponding to the opening 8, and an intake air pressure sensor 10 located in the independent cavity a5 and a magnetic angle sensor 11 located in the independent cavity B28 are arranged at the upper end face of the ECU circuit board 3.

The utility model discloses in, independent cavity 5 is airtight cavity, when carrying out the embedment to ECU circuit board 3, the shell is avoided the embedment material to get into independent cavity 5. An intake pressure sensor 9 and an intake temperature sensor 10 are used to sense the pressure and temperature of the gas in the gas passage 7 of the intake valve body 1. Meanwhile, the air inlet pressure sensor 9, the air inlet temperature sensor 10 and the magnetic angle sensor 11 are integrated on the ECU circuit board 3, so that the space can be fully utilized, the cost is saved, and the assembly difficulty is reduced.

In order to improve the sealing effect and prevent dust and water from entering, a circuit board housing seal 12 is arranged between the circuit board housing 4 and the lower end face of the throttle valve body 1.

As shown in fig. 3, in the present invention, the throttle valve body 1 includes a body, a throttle valve 14 with a throttle shaft 13 is disposed in the body, the upper end and the lower end of the throttle shaft 13 both pass through the body, the upper end of the throttle shaft 13 is connected to the stepping motor 2 through a gear mechanism, a throttle return rocker arm 16 with a throttle return torsion spring 15 is disposed at the lower end of the throttle shaft 13, a radial magnet 17 is disposed at the lower end of the throttle return rocker arm 16, and the radial magnet 17 corresponds to the magnetic angle sensor 11; a throttle adjusting screw 19 with a throttle screw spring 18 is arranged on the body and corresponding to the upper end of the throttle return rocker arm 16.

Further described, the gear mechanism includes a throttle shaft gear 20 provided at an upper end of the throttle shaft 13, and the throttle shaft gear 20 is engaged with a stepping motor gear 21 provided on a shaft of the stepping motor.

In order to facilitate connection and simplify assembly, the stepping motor 2 is connected with the upper end face of the throttle valve body 1 through a stepping motor mounting plate 22.

As shown in fig. 4 and 5, in order to facilitate positioning and simplify the assembly process, a pair of positioning posts 23 extending out of the lower end surface of the stepping motor mounting plate 22 are arranged on the lower end surface of the stepping motor mounting plate 22, and the positioning posts 23 are arranged oppositely; and a positioning hole 24 matched with the positioning column 23 is formed in the upper end surface of the throttle valve body 1.

The utility model discloses in, throttle valve body 1 possesses four big planes, and the left and right sides of throttle valve body 1 is used for throttle valve body's installation to the general gasoline engine of 300 sides of the adaptation and 600ml discharge capacity sections. The upper surface and the lower surface of the throttle valve body 1 are used for positioning and mounting the stepping motor cover 25 and the circuit board shell 4. The design of four planes of the throttle valve body 1 is favorable for reducing the size of a die, improving the processing efficiency and reducing the assembly difficulty.

In order to prevent water and dust for the stepping motor, a stepping motor outer cover 25 is arranged on the outer side of the stepping motor 2, and the stepping motor outer cover 25 is connected with the upper end face of the throttle valve body 1 through screws.

In order to further improve the dustproof and waterproof effect, a stepping motor housing sealing gasket 26 is arranged between the lower end face of the stepping motor housing 25 and the upper end face of the throttle valve body 1.

In order to fix the stepping motor, a stepping motor pressing sponge 27 which is pressed against the upper end surface of the stepping motor 2 is arranged in the stepping motor housing 25.

Claims

1. The utility model provides an electricity spouts air throttle, includes air throttle valve body (1) the up end of air throttle valve body (1) is provided with step motor (2), characterized by: an ECU circuit board (3) is arranged below the lower end face of the throttle valve body (1), and the ECU circuit board (3) is connected with the lower end face of the throttle valve body (1) through a circuit board shell (4).

2. The electrospray throttle valve of claim 1, further characterized by: the air throttle valve is characterized in that an independent cavity A (5) and an independent cavity B (28) are defined by the inner cavity of the circuit board shell (4) and the upper end face of the ECU circuit board (3) in a surrounding mode, the independent cavity A (5) upwards extends into the throttle valve body (1) to form an extension cavity (6), an opening (8) communicated with an air passage (7) of the throttle valve body (1) is formed in the upper portion of the extension cavity (6), an air inlet temperature sensor (9) connected with the ECU circuit board (3) is arranged on the upper portion of the extension cavity (6) and in a position corresponding to the opening (8), and an air inlet pressure sensor (10) located in the independent cavity A (5) and a magnetic angle sensor (11) located in the independent cavity B (28) are arranged on the upper end face of the ECU circuit board.

3. The electrospray throttle valve as recited in claim 2, further comprising: and a circuit board shell sealing gasket (12) is arranged between the circuit board shell (4) and the lower end surface of the throttle valve body (1).

4. The electrospray throttle valve as recited in claim 3, further comprising: the throttle valve body (1) comprises a body, a throttle valve (14) with a throttle valve shaft (13) is arranged in the body, the upper end and the lower end of the throttle valve shaft (13) penetrate through the body, the upper end of the throttle valve shaft (13) is connected with a stepping motor (2) through a gear mechanism, a throttle valve return rocker arm (16) with a throttle valve return torsion spring (15) is arranged at the lower end of the throttle valve shaft (13), a radial magnet (17) is arranged at the lower end of the throttle valve return rocker arm (16), and the radial magnet (17) corresponds to a magnetic angle sensor (11); a throttle valve adjusting screw (19) with a throttle valve screw spring (18) is arranged on the body and corresponds to the upper end of the throttle valve return rocker arm (16).

5. The electrospray throttle valve of claim 4, further characterized by: the gear mechanism comprises a throttle shaft gear (20) arranged at the upper end of a throttle shaft (13), and the throttle shaft gear (20) is meshed with a stepping motor gear (21) arranged on a stepping motor shaft.

6. The electrospray throttle valve as recited in claim 5, further comprising: the stepping motor (2) is connected with the upper end face of the throttle valve body (1) through a stepping motor mounting plate (22).

7. The electrospray throttle valve as recited in claim 6, further comprising: a pair of positioning columns (23) extending out of the lower end face of the stepping motor mounting plate (22) are arranged on the lower end face of the stepping motor mounting plate (22), and the positioning columns (23) are arranged oppositely; and a positioning hole (24) matched with the positioning column (23) is formed in the upper end face of the throttle valve body (1).

8. The electrospray throttle valve as recited in claim 7, further comprising: a stepping motor outer cover (25) is arranged on the outer side of the stepping motor (2), and the stepping motor outer cover (25) is connected with the upper end face of the throttle valve body (1) through a screw.

9. The electrospray throttle valve as recited in claim 8, further comprising: and a stepping motor outer cover sealing gasket (26) is arranged between the lower end surface of the stepping motor outer cover (25) and the upper end surface of the throttle valve body (1).

10. The electrospray throttle valve as recited in claim 9, further comprising: a stepping motor pressing sponge (27) which is pressed against the upper end surface of the stepping motor (2) is arranged in the stepping motor outer cover (25).