Technical brief:
This invention proposes a structurally compact solution to the complex, large and costly design of conventional electro-controlled air dryers in new energy pure electric gas brake vehicles. Efficient drying and regeneration control is achieved through the integration, loading and anti-blowing of single electromagnetic valves, the elimination of electrically controlled treatment units, the simplification of air route structures, and the reduction of manufacturing costs。
Keywords: electro-controlled air dryers, electromagnetic valve optimization, simplified structure
This invention deals with the manufacturing of auto parts and, more specifically, is an electric air dryer for new energy pure electric gas brake vehicles。
Background technology:
Air dryers are a compressed air treatment system that provides cleaning, drying, and pressure protection for gas brake vehicles. At present, the new energy pure electric gas brakes are becoming more widespread and are operating differently from the engine-driven air presses used in motor vehicles, which are controlled by the whole vehicle when the system's air pressure rises to a certain value, by the electric air pressure is shut down, by the whole vehicle's air pressure, when the system's air pressure drops to a certain value, and by the whole vehicle's control, and by the electrical air pressure is restarted, which does not matter whether the system's air pressure rises or drops to that value. As a result, the traditional air dryers, which use mechanical control of air-pressure offloading, loading, back-flowing and re-drying tanks, are no longer suitable for the assembly of pure electric gas brake vehicles and, as a result, electrically controlled air dryers have been created and developed at home and abroad. At present, however, these electro-controlled air dryers have complex design, large size and high production costs。
For example, the chinese practical new patent no. Cn2024382495u has opened up an electrically controlled vehicle air treatment unit, which includes air dryer totals, electrically controlled treatment units, which contain exhausting electromagnetic valves and reflowing magnetic valves. China's practical new patents, such as the bulletin number cn202971433u, have been published as new integrated air treatment units, including air dryers and multiple road protection valves; the said air dryers include vents, vents, dry drums, electrical control treatment units, while the air dryers also include gas-injecting magnetic valves, exhausting magnetic valves, reflow magnetic valves; and the gas-injecting electromagnetic valves, exhaust magnetic valves and reflowing magnetic valves are all controlled by the electromechanical treatment units。
Both examples of the above-mentioned bulletins include associated components such as electrically controlled treatment units and multiple electromagnetic valves, which are so complex and varied that they are only designed to perform the main offloading, loading and re-blowing of air dryers. Hence, the above-mentioned structural form is also flawed in terms of design complexity, size and production costs。
Technical realization elements:
The technical problem to be addressed by this invention is the provision of a compact, simple and low-cost vehicle-controlled air dryer that adequately meets the functional requirements of a pure electric gas brake vehicle, in response to the deficiencies of the above-mentioned electro-controlled air dryers。
This invention was achieved mainly through the following techniques: the vehicle electro-controlled air dryers, including valves, electromagnetic valves, dry tanks, the said valves, including an output one-way valve, an anti-blowing one-way valve, a piston gas cavity, the said electromagnetic valves, which include vents, vents, installed on valves, the said dry tanks, which include gas vents loaded in condition, installed on valves, are characterized by the fact that the gas vents of the said electromagnetic valves are simultaneously connected to the active gas cavity channel, which is used to unload or load and which is connected to the loading vents of the dry tank, and which is used to regenerate the anti-dry tank。
In the above-mentioned manner, the said electromagnetic valve has a one-way anti-blow valve between the vent and the gas vent of the dry tank in its loading state。
In the above-mentioned manner, the entrance of the said electromagnetic valve is connected to the gas flow channel of the one-way export valve of the valve。
The main advantage of this invention compared to existing technologies is that the function of multiple electromagnetic valves in existing technologies has been replaced by an electromagnetic valve. At the same time, because individual electromagnetic valves have simple cut control procedures that can be directly controlled by the whole vehicle controller, the associated components, such as electrical control processing units, which are embedded within existing technologies, have been eliminated。
As a result, the invention simplified the structure, saved raw materials, reduced the space occupied in the vehicle as a whole and reduced manufacturing costs。
Annex figure description
The structure of the vehicle electro-controlled air dryer implementation provided for this invention in figure 1
Figure 2 shows the rationale for the modalities of implementation shown in figure 1
Implementation modalities
The following, combined with the chart, details the operation of this invention. See figure 1, 2, the vehicle electrically controlled dryer, including valve 11, electromagnetic valve 12, dry tank 13, the said valve 11, which includes an output one-way valvea, an anti-blowing one-way valveb, a piston gas cavityc, the said electromagnetic valve 12, which consists of an inlet d, vent e, installed on valve 11, the said dry tank 13, which includes a load-state vent f, installed on valve 11, the characteristic of which is that the vent e of the said electromagnetic valve 12 is connected to the active gas ventc in circulation g, which is used to unload or load and to dry tanks the loading ventf is connected to the gas flow channelh for anti-dry tank regeneration13。
In the above-mentioned scheme, this vehicle electro-controlled dryer has a one-way anti-blow valve in the middle of the loading vent of the electromagnetic valves at 12 out of the tank and the loading vent of the dry tank at 13. F, which is limited to the compressed air flow from the electromagnetic valve at 12 out of the tank to the loading vent of the dry tank at 13,f and vice versa, which is the cut-off state。
In the above-mentioned program, this vehicle electro-controlled air dryer is connected to the gas flow channel i following the one-way export of the valve 11 at the vent d of electromagnetic valve 12。
The following is a detailed description of the working principles of the above-mentioned method of invention in conjunction with the attached chart。
Condensed air exported from a pure electric car electric air pressure machine enters the valve into the inner cavity of 11 k (part of condensed water due to a decrease in ambient temperature, temporarily remaining at the bottom of the cavityr, to be discharged and to be pumped into the atmosphere. ) condensed air passes through the dry tank13 and binds the water in the compressed air to its surface with a molecular siftm in the dry tank13. Condensed air, which is clean and dry by filtering and removing moisture, flows from the loading-state ventf and pushes the one-way output valvea along the gas flowway i through exit 2. (also through multiple circuit air pressure protection valves to stand-by cylinders); the other route via gas flowway i, j to electromagnetic valve 12 vent d. When the system's air pressure rises to a certain rated offloading pressure, the whole vehicle controller sends a working signal to the electromagnetic valve 12, connects to the electromagnetic valve 12, opens the vent d, closes the vent n, compresss the air from the vent e, flows all the way to the piston cavity c, pushes the offloading of the piston valve o, and the vehicle's electrically controlled dryer begins to unload, at which point the pressure in the dry tank 13 drops instantaneously. At the same time, the other route of air flowh pushed the reverse-blowing one-way valveb through the throttle hole p to the loading vent of the dry tank,f and rebreededed the dry tank. The volume of compressed air capacity and time of anti-dry tank 13 is controlled by throttle holesp and whole vehicle controllers. When the dry tank 13 is re-breathed, the whole vehicle controller sends a signal, instructs the electromagnetic valve 12 to be severed (and commands the electrical air-voltage shut-off) and the vent d to be closed, the vent n to be opened, the gas flow channel g, h to be discharged from the vent n, the discharge of the piston valve o to be closed, and the vehicle's electric control dryer to be reloaded. When the system's pressure drops to a rated value, the whole vehicle controller sends a signal, the electric air pressure is activated again, and a new cycle begins. Other undescribed parts (parts) are known techniques for technical staff in the profession。
Technical characteristics:
Technical summary
This invention, which covers parts and components of automobiles, is a vehicle electric air dryer which includes valves (11), electromagnetic valves (12), dry tanks (13) the said valve (11) includes an output one-way valve (a), an anti-blowing one-way valve (b), a piston gas cavity (c), an electromagnetic valve (12) includes an intake vent (d), an exhaust vent (e), a dry tank (13) includes a loading-state vent (f), an electromagnetic valve (12) is also connected to a piston vent (c) and a load-state vent (13) is connected to a dry tank (h). Advantages: the replacement of multiple electromagnetic valves in existing technologies with an electromagnetic valve; also because of the simplicity of the procedures, the breakdown of the electromagnetic valves is directly controlled by the whole vehicle controller, thus saving the electro-control unit on which the existing technology is based. Simplified structures and significantly reduced manufacturing costs。
Technical developer: yangdong bear; hwang bin
Protected technology users: wuhan east shield automobile parts and components ltd
Technology research and development day: 2016. 08. 01
Technical publication day: 2018. 02. 09
