CN101890950A

CN101890950A - Air pressure adjusting control valve for automobile

Info

Publication number: CN101890950A
Application number: CN2009100269229A
Authority: CN
Inventors: 吴金富
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-05-21
Filing date: 2009-05-21
Publication date: 2010-11-24

Abstract

The invention provides an air pressure adjusting control valve for an automobile, which comprises a big valve body, a noise reduction disk, a static iron core and the like, wherein the big valve body is internally provided with left and right channels in a horizontal direction; the left and right channels are respectively provided with small holes which are communicated with two holes in a longitudinal direction; the two holes in the longitudinal direction are internally provided with a normally closed pilot valve, a movable iron core, a static iron core, a iron core adjusting chip and the like; the inner cavities and channels are arranged at the upper, the bottom left and the lower of the big valve body in the longitudinal direction and are communicated vertically and horizontally; the inner cavities at the upper and the bottom left of the big valve are internally provided with air inlet diaphragms, diaphragm springs and air outlet diaphragms; and the cavities at the lower of the big valve body is internally provided with a main valve port which is externally provided with the noise reduction disk and an air outlet disk and a dustproof sheet rubber are arranged at the lower of the main valve port. The DCGCF-2 air pressure adjusting control valve in the invention has fast control technology adjusting frequency and fast response speed, and ensures smooth gas circuit of the regular brake and stability of brake, ensures balance of braking force of a brake drum and improves reliability of a braking system.

Description

Air pressure adjusting control valve for automobile

Technical field: the present invention relates to air pressure adjusting control valve for automobile, it is applicable to heavy motor vehicle or two and three towed vehicle, belongs to the adjusting control valve in the automobile anti-lock braking brake system.

Background technology: air pressure adjusting control valve for automobile is the main executive device in the anti-locking system for car, is when emergency brake of vehicle, need play regulating brake air chamber pressure size product, so the performance reliability of product is very important.The adjusting control valve that international, domestic at present heavily card, the trailer that is matched with on the automobile ABS electronic control system market uses is piston type: be to lean on the piston of supercharging ring seal to promote opening of diaphragm valve port, the pressure in decompression piston chamber, backspring is closed intake valve port; Exhaust is to promote piston by cut-back pressure, just can reach the control set for adjusting of exhaust again by the piston cavity row pressure, control and controlled volume instability in this control process, because conventional brake also moves same brake circuit, cause this controlled object amount of exercise to increase, sealing property reduces, the braking force overbalance, thus influence the performance of control system effect.

Summary of the invention: purpose of the present invention will provide a kind of air pressure adjusting control valve for automobile exactly, and it can overcome the existing problem of present adjusting control valve.The object of the present invention is achieved like this, air pressure adjusting control valve for automobile, be by big valve body, the noise reduction dish, static iron core, concentrating flux plate is formed, it is characterized in that: be horizontally arranged with left and right sides passage in the big valve body, right passage is provided with aperture and communicates with vertical two holes, in described vertical two holes, be provided with normally closed Leading valve in the left hole from top to bottom, moving iron core, static iron core, the iron core adjustment sheet, also be provided with the static iron core seal ring on the static iron core, the right be provided with in the hole with left hole in the identical part of reversed in order, two vertical both sides, hole are respectively arranged with normally closed coil and often burst at the seams and enclose and be wrapped in by concentrating flux plate; Vertically top, lower left, below are provided with inner chamber and passage and communicate in length and breadth accordingly in the described big valve body, be respectively arranged with air inlet diaphragm, diaphragm spring, exhaust diaphragm, diaphragm spring in top, the lower left inner chamber, be provided with primary valve in the inner chamber of below, primary valve is outside equipped with the noise reduction dish, and the below is provided with exhaust pallet and dust protection rubber sheet; Big valve body the right is provided with binding post and coil cover of dust.DCGCF-2 air pressure adjusting control valve of the present invention, the control technology regulating frequency is fast, the speed of response is fast, and the amount of controlling and expected value actv. are brought into play in system, have also guaranteed the stability of the unimpeded and brake of the gas circuit of conventional brake simultaneously.The drum that guaranteed to stop is braked equilibrium of forces, has improved the reliability of brake system.

Description of drawings:

Fig. 1 is a DCGCF-2 structural representation of the present invention;

Fig. 2 is that Figure 1A-A is to cutaway view;

Fig. 3 pressure increases the circuit control chart;

Fig. 4 pressure reduces the circuit control chart;

Fig. 5 pressure keeps the circuit control chart;

1. air inlet diaphragm, 2. top inner chamber, 3. diaphragm spring, 4. passage, 5. big valve body, 6. binding post, 7. coil cover of dust, 8. noise reduction dish, 9. dust protection rubber sheet, 10. primary valve, 11. the exhaust supporting plate, 12. lower left inner chambers, 13. exhaust diaphragms, 14. steel ball, 15. passages, 16. static iron cores, 17. the static iron core seal ring, 18. exhaust shroudings, 19. circles that often burst at the seams, 20. the normally open valve mouth, 21. normally closed Leading valves, 22. passages, 23. moving iron core, 24. passages, 25. iron core adjustment sheets, 26. concentrating flux plate, 27. valve-closed port, 28. normally closed coils, 29. passage, 30. left passages, 31. right passages.

The row of going up 1,2 is the circle power connection that often bursts at the seams on the circuit control chart; Vertical 2,3 is normally closed coil power joint; Under arrange 1 for often opening, 2 is concentration line, 3 is normally closed.

The specific embodiment: the invention will be further described below in conjunction with accompanying drawing;

Air pressure adjusting control valve for automobile, be by big valve body 5, noise reduction dish 8, static iron core 16, concentrating flux plate 26 is formed, it is characterized in that: be horizontally arranged with left passage 30 in the big valve body 5, right passage 31, right passage 31 is provided with aperture and communicates with vertical two holes, in described vertical two holes, be provided with normally closed Leading valve 21 in the left hole from top to bottom, moving iron core 23, static iron core 16, iron core adjustment sheet 25, also be provided with static iron core seal ring 17 on the static iron core 16, the right be provided with in the hole with left hole in the identical part of reversed in order, two vertical both sides, hole are respectively arranged with normally closed coil 28 and often burst at the seams encloses 19 and be wrapped in by concentrating flux plate 26; Vertically top, lower left, below are provided with inner chamber and passage and communicate in length and breadth accordingly in the described big valve body 5, be respectively arranged with air inlet diaphragm 1, diaphragm spring 3, exhaust diaphragm 13, diaphragm spring 3 in top inner chamber 2, the lower left inner chamber 12, be provided with primary valve 10 in the inner chamber of below, primary valve 10 is outside equipped with noise reduction dish 8, and the below is provided with exhaust pallet 11 and dust protection rubber sheet 9; Big valve body 5 the right are provided with binding post 6 and coil cover of dust 7.During concrete enforcement, pressure increases: pressure enters into air inlet diaphragm 1 by right passage 31, directly enters left side brake repair room by left passage 30, and last inner chamber 2 is straight-through with primary valve 10 by passage 4 and valve-closed port 27.The while pressurized air is gone into normally open valve mouth 20 mistake passages 24 by right passage 31, passage 15 and is entered lower left inner chamber 12, exhaust diaphragm 13 is closed, the air pressure that acts on lower left inner chamber 12 makes that diaphragm valve is tight-lipped tightly closes, and right passage 31 pressure cause that directly left passage 30 left side brake repair room pressure increase.Same application when reducing, pressure is also arranged.The air flue increase and decrease that has effectively guaranteed original brake is unobstructed, the function of increasing pressure of regulating control compressed air brake cylinder.

Pressure reduces: when regulate that electromagnetic valve is subjected to that electronic control unit ECU provides reduce pressure instruction the time, normally closed electromagnet gets electric valve port 27 and closes, normally closed Leading valve 21 is opened, and the pressurized air of right passage 31 enters top inner chamber 2, the instantaneous air inlet diaphragm 1 of closing from passage 4.Often open electromagnet also simultaneously electric, close normally open valve mouth 20, open the normally closed Leading valve 21 in below make the pressure gas source of lower left inner chamber 12 from passage 24 by normally closed Leading valve 21, enter primary valve 10 and discharge, exhaust diaphragm 13 is also instantaneous to be opened.From primary valve 10 exhaust to atmospheres, the air pressure of brake repair room is released the brake-pressure source of the gas by left passage 30 and passage 22, can regulating control decompression pressure, play the maximum efficiency that adapts to control.

Pressure keeps: when ABS electronic system ECU sends the pressurize instruction, often open the electromagnet dead electricity, normally open valve mouth 20 is opened, and the normally closed Leading valve 21 in below is closed, and makes the high pressure draft of right passage 31 be back to lower left inner chamber 12 from passage 24, close exhaust diaphragm 13, normally closed electromagnet keeps adhesive, and inner chamber 2 air pressure in top are in high pressure conditions, and air inlet diaphragm 1 is closed, make the brake repair room pressure on left passage 31 left sides be maintained, keep the instantaneous force value of decompression.

DCGCF-2 air pressure adjusting control valve of the present invention, operating voltage: U=24V, ED20%, I≤1.58A under the normal temperature, IP65, IP68 and plug-in unit connect; Operation pressure: 0-10bar; Ambient temperature :-40 ℃-+80 ℃.

Claims

1. air pressure adjusting control valve for automobile, be by big valve body (5), noise reduction dish (8), static iron core (16), concentrating flux plate (26) is formed, it is characterized in that: be horizontally arranged with left passage (30) in the big valve body (5), right passage (31), right passage (31) is provided with aperture and communicates with vertical two holes, in described vertical two holes, be provided with normally closed Leading valve (21) in the left hole from top to bottom, moving iron core (23), static iron core (16), iron core adjustment sheet (25), also be provided with static iron core seal ring (17) on the static iron core (16), the right be provided with in the hole with left hole in the identical part of reversed in order, two vertical both sides, hole are respectively arranged with normally closed coil (28) and reach the circle (19) and be wrapped in by concentrating flux plate (26) of often bursting at the seams; Vertically top, lower left, below are provided with inner chamber and passage and communicate in length and breadth accordingly in the described big valve body (5), be respectively arranged with air inlet diaphragm (1), diaphragm spring (3), exhaust diaphragm (13), diaphragm spring (3) in top inner chamber (2), the lower left inner chamber (12), be provided with primary valve (10) in the inner chamber of below, primary valve (10) is outside equipped with noise reduction dish (8), and the below is provided with exhaust pallet (11) and dust protection rubber sheet (9); Big valve body (5) the right is provided with binding post (6) and coil cover of dust (7).