CN218151167U - Electronic throttle valve body with double-flange structure - Google Patents

Abstract

The utility model discloses an electronic throttle body with a double-flange structure, which comprises a throttle body (1), a throttle shaft (2), a throttle plate (3), a position sensor (4) and a direct current motor (5); the throttle valve is characterized by further comprising a sector gear (9), a torsion spring (10) and a metal insert (11), wherein the sector gear (9) is fixed on the throttle valve shaft (2), the sector gear (9) is meshed with the intermediate gear (13), the torsion spring (10) is sleeved on the sector gear (9), the torsion spring (10) is fixed on a limiting support leg of the sector gear (9), and meanwhile the end of the torsion spring (10) is clamped on two sides of the limiting support leg of the throttle valve body (1); the throttle body (1) is provided with an air inlet end flange structure (28) and an air outlet end flange structure (29); the metal insert (11) is arranged in the sector gear (9). The utility model provides a prior art part many, the structure is complicated, assembly difficulty, technical problem with high costs.

Description

Electronic throttle valve body with double-flange structure

Technical Field

The utility model relates to an automobile gasoline engine technical field, concretely relates to electronic throttle body of two flange structures.

Background

With the development of automobile technology, intelligent control of automobiles such as traction control, cruise control, idle speed control and the like has become a standardized configuration of automobiles, and is favored by automobile manufacturers and customers. The engine Electronic Control Unit (ECU) can rapidly and accurately control the electronic throttle body, has the advantages of providing optimal dynamic property and fuel economy for vehicles, improving the emission performance of the engine and the like, is more and more widely applied, and gradually replaces the traditional mechanical throttle body.

The applicant has found that the prior art has at least the following technical problems:

1. in the current electronic throttle body, in order to meet the requirement of forward and reverse rotation return torque of the electronic throttle body, most of the electronic throttle body respectively use two independent torsion springs or a double torsion spring with left and right rotation directions, and meanwhile, most of direct current motors use an independent pressing plate, an independent motor stator and an independent base, and the installation and fixation of the motors are realized by subsequent assembly, so that the electronic throttle body is generally caused to have many parts, complex structure, difficult assembly and high cost.

2. Among the present electronic throttle body, most throttle body inlet end is circular straight barrel structure, adopts the clamp to be connected with empty filter, nevertheless can't satisfy in turbocharged engine and be connected with the intercooler. The intercooler is actually a turbocharging accessory, and has the functions of reducing the temperature of the supercharged high-temperature air, reducing the load of the engine, improving the air inflow and further increasing the power of the engine.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electronic throttle body of double flange structure to solve the part among the prior art many, the structure is complicated, assembly difficulty, with high costs, can't realize the technical problem who is connected with the intercooler.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides an electronic throttle body with a double-flange structure, which comprises a throttle body, a throttle shaft, a throttle sheet, a position sensor and a direct current motor; the throttle shaft is arranged in the throttle body, the throttle sheet is arranged on the throttle shaft, the position sensor is fixed on the throttle body, and the direct current motor is arranged on one side of the throttle body; the direct current motor comprises a direct current motor, a throttle body, a motor gear, a sector gear, a torsion spring and a metal insert, wherein the output shaft of the direct current motor is provided with the motor gear, the throttle body is rotatably provided with the intermediate gear, the intermediate gear is meshed with the motor gear, the sector gear is fixed on a throttle shaft, the sector gear is meshed with the intermediate gear, the torsion spring is sleeved on the sector gear, the torsion spring is fixed on a limit supporting leg of the sector gear, and the end of the torsion spring is clamped on two sides of the limit supporting leg of the throttle body; the throttle body is provided with an air inlet end flange structure and an air outlet end flange structure; the metal insert is arranged in the sector gear.

Optionally or preferably, the damper further comprises a metal insert assembling part and a throttle shaft assembling part, and the metal insert is embedded in the sector gear in an injection molding mode; and the metal insert assembling part and the throttle shaft assembling part fix the sector gear at the end part of the throttle shaft in a welding mode.

Optionally or preferably, the damper further comprises a first torsion spring support leg, a second torsion spring support leg, a sector gear limit support leg and a throttle body limit support leg; the fan-shaped gear limiting support leg is provided with a first side face of the fan-shaped gear limiting support leg and a second side face of the fan-shaped gear limiting support leg, and the throttle body limiting support leg is provided with a first side face of the throttle body limiting support leg and a second side face of the throttle body limiting support leg; the first torsional spring supporting leg and the second torsional spring supporting leg are respectively sleeved on the first side face of the sector gear limiting supporting leg and the second side face of the sector gear limiting supporting leg; meanwhile, the first support leg of the torsion spring and the second support leg of the torsion spring are respectively clamped on the first side face of the limiting support leg of the throttle body and the second side face of the limiting support leg of the throttle body.

Optionally or preferably, the throttle body limiting support leg is arranged on the throttle body, and the side face of the sector gear limiting support leg is arranged on the sector gear; the limitation of the welding back angle of the throttle body and the sector gear is realized through the side surface of the limiting support leg of the throttle body and the side surface of the limiting support leg of the sector gear.

Optionally or preferably, the device further comprises a needle bearing and a sliding bearing; the throttle shaft is fixed in the throttle body through a needle bearing and a sliding bearing; the needle bearing is arranged on one side, close to the sector gear, of the throttle shaft, and the sliding bearing is located on one side, far away from the sector gear, of the throttle shaft.

Optionally or preferably, the throttle body further comprises a clamp, and the position sensor is fixed on the throttle body through the clamp.

Alternatively or preferably, the air inlet direction of the throttle body is provided with an air inlet mark.

Based on the technical scheme, the embodiment of the utility model provides a can produce following technological effect at least:

(1) The utility model provides an electronic throttle body of double flange structure, at first install sector gear through laser welding on the throttle shaft, two feet of torsional spring are fixed in the spacing stabilizer blade both sides of sector gear simultaneously, two feet of torsional spring card is in the spacing stabilizer blade both sides of body, when direct current motor is not exporting power, the throttle piece is in high idle speed position under the torsion effect of torsional spring, realize that electronic throttle body high idle speed position is fixed, make compact structure, simple to operate reliable, with low costs; secondly, a metal insert is arranged in the sector gear, the metal insert and the throttle shaft are welded in front of the throttle shaft by laser, and the throttle shaft is rotated, so that the accurate control of the matching angle of the laser welding metal insert and the throttle shaft can be realized, and the accurate fixation of the low-idle speed position of the electronic throttle body assembly is realized; finally the utility model discloses use single torsional spring, realize the electronic throttle body return moment requirement of just reversing, reach the part at last and reduce, simple structure, assembly structure is simple and convenient, the product is reliable, with low costs optimization effect.

(2) The utility model provides a pair of electronic throttle body of two flange structures, through two flange structures that set up at the air throttle body, inlet end flange structure promptly and the end flange structure of giving vent to anger, the direction of admitting air is provided with the sign that admits air, and the inlet end flange face is connected with the intercooler, and the end flange face of giving vent to anger is connected with intake manifold to realize that the electronic throttle body is effectively connected with the intercooler in turbocharged engine.

Drawings

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

fig. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic view of the internal structure of the present invention;

fig. 4 is a schematic structural view of the metal insert of the present invention;

FIG. 5 is a schematic view of a structure for assembling a sector gear and a metal insert;

FIG. 6 is a schematic view of a throttle shaft;

FIG. 7 is a schematic view of the assembled sector gear and throttle shaft;

FIG. 8 is a schematic structural view of a high idle speed limit support leg of the sector gear;

FIG. 9 is a schematic view of a torsional spring high idle speed limit foot structure;

FIG. 10 is a schematic view of a high idle speed limit position structure of sector gear assembly;

FIG. 11 is a schematic view of a low idle limit position of the sector gear assembly.

In the figure: 1. a throttle body; 2. a throttle shaft; 3. a throttle blade; 4. a position sensor; 5. a direct current motor; 6. a needle bearing; 7. a sliding bearing; 9. A sector gear; 10. a torsion spring; 11. a metal insert; 12. a motor gear; 13. an intermediate gear; 14. clamping a hoop; 15. a metal insert assembly part; 16. a throttle shaft assembly part; 17. a torsion spring first leg; 18. a torsion spring second leg; 19. a sector gear limit support leg; 20. A first side surface of a sector gear limiting support leg; 21. a second side surface of the sector gear limiting support leg; 22. a throttle body limit support leg; 23. a first side surface of a limiting support leg of the throttle body; 24. a second side surface of the limiting support leg of the throttle body; 25. A throttle body limit support leg; 26. the side surface of the limiting support leg of the throttle body; 27. the sector gear limits the side surface of the support leg; 28. an inlet end flange structure; 29. a gas outlet end flange structure; 30. and (4) air inlet identification.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

The utility model provides an electronic throttle body with a double-flange structure, which comprises a throttle body 1, a throttle shaft 2, a throttle plate 3, a position sensor 4 and a DC motor 5; the throttle shaft 2 is arranged in the throttle body 1, the throttle sheet 3 is arranged on the throttle shaft 2, the position sensor 4 is fixed on the throttle body 1, and the direct current motor 5 is arranged on one side of the throttle body 1; install motor gear 12 on direct current motor 5's the output shaft, rotate on throttle body 1 and install intermediate gear 13, intermediate gear 13 and the meshing of motor gear 12, its characterized in that: the throttle body limiting device is characterized by further comprising a sector gear 9, a torsion spring 10 and a metal insert 11, wherein the sector gear 9 is fixed on the throttle shaft 2, the sector gear 9 is meshed with a middle gear 13, the torsion spring 10 is sleeved on the sector gear 9, the torsion spring 10 is fixed on limiting support legs of the sector gear 9, and meanwhile, the ends of the torsion spring 10 are clamped on two sides of the limiting support legs of the throttle body 1; the throttle body 1 is provided with an air inlet end flange structure 28 and an air outlet end flange structure 29; the metal insert 11 is arranged in the sector gear 9.

The utility model provides a pair of electronic throttle body of flange structure, two stabilizer blades of torsional spring 10 are fixed in fan-shaped gear 9 spacing stabilizer blade both sides, and two stabilizer blades of torsional spring 10 block in throttle body 1 spacing stabilizer blade both sides simultaneously, and when DC motor 5 is not exporting power, throttle flap 3 is in the high idle speed position under the torsion effect of torsional spring 10, realizes that electronic throttle body high idle speed position is fixed, makes compact structure, simple to operate reliable; meanwhile, the utility model also uses a single torsional spring 10 to meet the requirement of the electronic throttle body on the normal and reverse return torque, and simultaneously, the parts are reduced, the assembly structure is simple and convenient, and the cost is low; before laser welding metal insert 11 and throttle shaft 2, the accurate control of laser welding metal insert 11 and 2 cooperation angles of throttle shaft just can be realized to rotary throttle shaft 2 to realize the accurate fixed of the low idle speed position of electron throttle body assembly.

As an optional embodiment, the damper further comprises a metal insert mounting part 15 and a throttle shaft mounting part 16, and the metal insert 11 is embedded inside the sector gear 9 by an injection molding mode; the metal insert assembling part 15 and the throttle shaft assembling part 16 fix the sector gear 9 on the end part of the throttle shaft 2 in a welding mode.

As an alternative embodiment, the damper further comprises a torsion spring first leg 17, a torsion spring second leg 18, a sector gear limit leg 19 and a throttle body limit leg 22; the fan-shaped gear limiting support leg 19 is provided with a first side face 20 of the fan-shaped gear limiting support leg and a second side face 21 of the fan-shaped gear limiting support leg, and the throttle body limiting support leg 22 is provided with a first side face 23 of the throttle body limiting support leg and a second side face 24 of the throttle body limiting support leg; the first torsion spring supporting leg 17 and the second torsion spring supporting leg 18 are respectively sleeved on the first side surface 20 of the sector gear limiting supporting leg and the second side surface 21 of the sector gear limiting supporting leg; meanwhile, the ends of the first leg 17 and the second leg 18 of the torsion spring are clamped on the first side 23 and the second side 24 of the limiting leg of the throttle body respectively.

As an optional embodiment, the throttle body limiting support leg further comprises a throttle body limiting support leg 25 arranged on the throttle body 1 and a sector gear limiting support leg side 27 arranged on the sector gear 9, and a throttle body limiting support leg side 26 is further arranged on the throttle body limiting support leg 25; the welding back angle limitation of the throttle body 1 and the sector gear 9 is realized through the side surface 26 of the throttle body limiting support leg and the side surface 27 of the sector gear limiting support leg.

As an alternative embodiment, the device also comprises a needle bearing 6 and a sliding bearing 7; the throttle shaft 2 is fixed in the throttle body 1 through a needle bearing 6 and a sliding bearing 7; the needle bearing 6 is arranged on one side of the throttle shaft 2 close to the sector gear 9, and the sliding bearing 7 is arranged on one side of the throttle shaft 2 far away from the sector gear 9.

As an optional embodiment, the throttle position sensor further comprises a clamp 14, and the position sensor 4 is fixed on the throttle body 1 through the clamp 14; of course, other connection methods may be adopted to fix the position sensor 4 to the throttle body 1 as long as stable fixation can be achieved.

As an alternative embodiment, the air intake direction of the throttle body 1 is provided with an air intake mark 30; of course, the air inlet sign 30 can also be arranged at other positions of the throttle body 1, as long as a clear indication of the air inlet direction is achieved.

The utility model provides a pair of electronic throttle body of double flange structure's application method does:

when the direct current motor 5 does not output power, the throttle blade 3 is in a high idle speed position under the action of the torsion force of the torsion spring 10, so that the high idle speed position of the electronic throttle body is fixed, and the electronic throttle body is compact in structure and convenient and reliable to install; meanwhile, the utility model also uses a single torsional spring 10 to meet the requirements of the electronic throttle body on the alignment and reversal return torque, and simultaneously reduces parts, has simple and convenient assembly structure and low cost; before laser welding metal insert 11 and throttle shaft 2, rotary throttle shaft 2 just can realize laser welding metal insert 11 and the accurate control of throttle shaft 2 cooperation angle to realize the accurate fixed of the low idle speed position of electron throttle body assembly.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.

Claims (7)

1. An electronic throttle body with a double-flange structure comprises a throttle body (1), a throttle shaft (2), a throttle plate (3), a position sensor (4) and a direct current motor (5); the throttle shaft (2) is arranged in the throttle body (1), the throttle sheet (3) is arranged on the throttle shaft (2), the position sensor (4) is fixed on the throttle body (1), and the direct current motor (5) is arranged on one side of the throttle body (1); install motor gear (12) on direct current motor (5)'s the output shaft, rotate on throttle body (1) and install intermediate gear (13), intermediate gear (13) and motor gear (12) meshing, its characterized in that: the throttle valve is characterized by further comprising a sector gear (9), a torsion spring (10) and a metal insert (11), wherein the sector gear (9) is fixed on the throttle valve shaft (2), the sector gear (9) is meshed with the intermediate gear (13), the torsion spring (10) is sleeved on the sector gear (9), the torsion spring (10) is fixed on a limiting support leg of the sector gear (9), and meanwhile, the end of the torsion spring (10) is clamped on two sides of the limiting support leg of the throttle valve body (1); the throttle body (1) is provided with an air inlet end flange structure (28) and an air outlet end flange structure (29); the metal insert (11) is arranged on the sector gear (9).

2. The electronic throttle body of a double flange structure as recited in claim 1, wherein: the throttle valve is characterized by further comprising a metal insert assembling part (15) and a throttle valve shaft assembling part (16), and meanwhile, the metal insert (11) is embedded in the sector gear (9) in an injection molding mode; the metal insert assembling part (15) and the throttle shaft assembling part (16) fix the sector gear (9) at the end part of the throttle shaft (2) in a welding mode.

3. The electronic throttle body of a double flange structure of claim 1, wherein: the damper further comprises a torsion spring first supporting leg (17), a torsion spring second supporting leg (18), a sector gear limiting supporting leg (19) and a damper body limiting supporting leg (22); the fan-shaped gear limiting supporting leg (19) is provided with a first side face (20) of the fan-shaped gear limiting supporting leg and a second side face (21) of the fan-shaped gear limiting supporting leg, and the throttle body limiting supporting leg (22) is provided with a first side face (23) of the throttle body limiting supporting leg and a second side face (24) of the throttle body limiting supporting leg; the first torsion spring support leg (17) and the second torsion spring support leg (18) are respectively sleeved on the first side surface (20) and the second side surface (21) of the sector gear limiting support leg; meanwhile, the first torsion spring support leg (17) and the second torsion spring support leg (18) are respectively clamped on the first side face (23) of the throttle body limiting support leg and the second side face (24) of the throttle body limiting support leg.

4. The electronic throttle body of a double flange structure of claim 1, wherein: the air throttle body limiting support leg structure further comprises an air throttle body limiting support leg (25) arranged on the air throttle body (1) and a sector gear limiting support leg side surface (27) arranged on the sector gear (9), wherein the air throttle body limiting support leg (25) is further provided with an air throttle body limiting support leg side surface (26); the welding clearance angle limitation of the throttle body (1) and the sector gear (9) is realized through the side surface (26) of the throttle body limit support leg and the side surface (27) of the sector gear limit support leg.

5. The electronic throttle body of a double flange structure as recited in claim 1, wherein: the device also comprises a needle bearing (6) and a sliding bearing (7); the throttle shaft (2) is fixed in the throttle body (1) through a needle bearing (6) and a sliding bearing (7); the needle roller bearing (6) is arranged on one side, close to the sector gear (9), of the throttle shaft (2), and the sliding bearing (7) is located on one side, far away from the sector gear (9), of the throttle shaft (2).

6. The electronic throttle body of a double flange structure of claim 1, wherein: still include clamp (14), position sensor (4) are fixed in throttle body (1) through clamp (14).

7. The electronic throttle body of a double flange structure as recited in claim 1, wherein: and an air inlet mark (30) is arranged in the air inlet direction of the throttle body (1).

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