CN110848034A - Electric injection air throttle - Google Patents
Electric injection air throttle Download PDFInfo
- Publication number
- CN110848034A CN110848034A CN201911366433.8A CN201911366433A CN110848034A CN 110848034 A CN110848034 A CN 110848034A CN 201911366433 A CN201911366433 A CN 201911366433A CN 110848034 A CN110848034 A CN 110848034A
- Authority
- CN
- China
- Prior art keywords
- throttle valve
- stepping motor
- throttle
- valve body
- circuit board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
- F02D2011/101—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the means for actuating the throttles
Abstract
The invention discloses an electronic injection air throttle valve which comprises an air throttle valve body (1), wherein a stepping motor (2) is arranged on the upper end face of the air throttle valve body (1), an ECU circuit board (3) is arranged below the lower end face of the air throttle valve body (1), and the ECU circuit board (3) is connected with the lower end face of the air throttle valve body (1) through a circuit board shell (4). The electronic injection throttle valve has the advantages of high integration level, ingenious structural design, practicability, reliability and low cost, improves the service performance of the electronic injection throttle valve, improves the compatibility, reduces the assembly difficulty, saves the manufacturing cost, effectively improves the dustproof and waterproof performance, improves the service environment and ensures the performance of products.
Description
Technical Field
The invention relates to an air throttle, in particular to an electronic injection 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.
Disclosure of Invention
The invention aims to provide the electronic injection air throttle which is high in integration level, simple to assemble, waterproof and dustproof.
The invention aims to realize the electronic injection throttle valve by adopting the technical scheme, and the electronic injection throttle valve comprises a throttle valve body, wherein a stepping motor is arranged on the upper end surface of the throttle valve body, an ECU circuit board is arranged below the lower end surface of the throttle valve body, and the ECU circuit board is connected with the lower end surface of the throttle valve body through a circuit board shell.
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 disposed in the body, the upper end and the lower end of the throttle shaft both penetrate 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.
By adopting the technical scheme, the electronic injection air throttle has the advantages of high integration level, ingenious structural design, practicability, reliability and low cost, improves the service performance of the electronic injection air throttle, improves the compatibility, reduces the assembly difficulty, saves the manufacturing cost, effectively improves the dustproof and waterproof performance, improves the service environment and ensures the performance of products.
Drawings
The drawings of the invention are illustrated as follows:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a partial cross-sectional view of the ECU circuit board of the present invention;
FIG. 3 is a partial cross-sectional view of FIG. 1;
FIG. 4 is a schematic view of a mounting plate structure of the stepping motor of the present invention;
FIG. 5 is a schematic view of the upper end face structure of the throttle body of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention will be described in detail 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 claimed in the 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.
In the invention, the independent cavity 5 is a closed cavity, and when the ECU circuit board 3 is encapsulated, the shell prevents the encapsulating material from entering the 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 14 with a throttle shaft 13 is disposed in the body, the upper end and the lower end of the throttle shaft 13 both penetrate 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.
In the invention, the throttle valve body 1 is provided with four large planes, and the left and right surfaces of the throttle valve body 1 are used for installing the throttle valve body and are adapted to a general gasoline engine with a displacement section of 300-. 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 (10)
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. An electronic injection throttle as set forth in claim 3, characterized in that: 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. An electronic injection throttle as set forth in claim 4, characterized in that: 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. An electronic injection throttle as set forth in claim 5, characterized in that: 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. An electronic injection throttle as set forth in claim 6, characterized in that: 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. An electronic injection throttle as set forth in claim 7, characterized in that: 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. An electronic injection throttle as set forth in claim 8, characterized in that: 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. An electronic injection throttle as set forth in claim 9, characterized in that: 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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911366433.8A CN110848034A (en) | 2019-12-26 | 2019-12-26 | Electric injection air throttle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911366433.8A CN110848034A (en) | 2019-12-26 | 2019-12-26 | Electric injection air throttle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110848034A true CN110848034A (en) | 2020-02-28 |
Family
ID=69610644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911366433.8A Pending CN110848034A (en) | 2019-12-26 | 2019-12-26 | Electric injection air throttle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110848034A (en) |
-
2019
- 2019-12-26 CN CN201911366433.8A patent/CN110848034A/en active Pending
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