阅读说明：本技术 组合式电控干燥器 (Combined electric control dryer ) 是由 郦杰 许方解 张再伟 金洁 陈桂亮 蔡荣伟 于 2021-07-06 设计创作，主要内容包括：本发明公开了一种组合式电控干燥器,包括干燥器主体和干燥筒,所述干燥器主体分为上下两部分,上下两部分之间的通道安装有第一单向阀；干燥器主体上部分连接有活塞和电磁阀以及干燥器控制口,干燥器主体下部分连接有四回路保护阀,通过每个保护阀的输出口连接整车管路储气筒；当储气筒压力达到所需压力时,整车系统给电磁阀的第二内部线圈输入电信号,干燥器主体下部分气体通过阀口进入干燥器主体上部分的通道,从干燥器控制口输出；干燥器主体上部分通道内压力上升,气体作用在活塞上打开阀口,此时进气口进来的气体直接经过活塞的阀口排出干燥器。本发明产品结构简单、安装方便、进出口都在同侧,方便整车管路连接及布置,适用于不同车型。(The invention discloses a combined type electric control dryer, which comprises a dryer main body and a drying cylinder, wherein the dryer main body is divided into an upper part and a lower part, and a first one-way valve is arranged in a channel between the upper part and the lower part; the upper part of the dryer main body is connected with a piston, an electromagnetic valve and a dryer control port, the lower part of the dryer main body is connected with four-loop protection valves, and the four-loop protection valves are connected with an air storage cylinder of a whole vehicle pipeline through an output port of each protection valve; when the pressure of the air storage cylinder reaches the required pressure, the whole vehicle system inputs an electric signal to a second internal coil of the electromagnetic valve, and the gas at the lower part of the dryer main body enters a channel at the upper part of the dryer main body through a valve port and is output from a dryer control port; the pressure in the partial channel on the dryer main body rises, the gas acts on the piston to open the valve port, and the gas coming from the gas inlet directly passes through the valve port of the piston and is discharged out of the dryer. The invention has simple structure, convenient installation, the inlet and the outlet are all on the same side, the connection and the arrangement of the whole vehicle pipeline are convenient, and the invention is suitable for different vehicle types.)

1. A combined type electric control dryer is characterized by comprising a dryer main body and a drying cylinder which are connected through a channel, wherein an oil filter is connected between an air inlet of the dryer main body and the drying cylinder; the dryer main body is divided into an upper part and a lower part, and a first one-way valve is arranged in a channel between the upper part and the lower part; the upper part of the dryer main body is connected with a piston, an electromagnetic valve and a dryer control port, the lower part of the dryer main body is connected with four-loop protection valves, and the four-loop protection valves are connected with an air storage cylinder of a whole vehicle pipeline through an output port of each protection valve;

the gas dried by the drying cylinder enters the upper part of the dryer main body, the first one-way valve is opened under the action of pressure to enter the lower part of the dryer main body, and the gas enters the air storage cylinder of the finished automobile pipeline through the four-loop protection valve;

when the pressure of the air cylinder reaches the required pressure, the dryer needs to be exhausted and unloaded, the electromagnetic valve is communicated with the lower part of the dryer main body through a channel, the whole vehicle system inputs an electric signal to a second internal coil of the electromagnetic valve, a valve port of the electromagnetic valve, which is communicated with the upper part of the dryer main body, is opened, and the gas in the lower part of the dryer main body enters the channel in the upper part of the dryer main body through the valve port and is output from a dryer control port;

the pressure in the partial channel on the dryer main body rises, the gas acts on the piston to open the valve port, and at the moment, the gas coming from the gas inlet of the dryer main body directly passes through the valve port of the piston and is discharged out of the dryer through the discharge muffler.

2. The combined type electric control dryer according to claim 1, wherein a second one-way valve is installed at a position where the upper part of the dryer main body is communicated with the electromagnetic valve, and part of gas entering the dryer main body after being dried by the drying cylinder extrudes the second one-way valve to seal the second one-way valve.

3. The combined electrically controlled dryer according to claim 1, wherein each of the four-circuit protection valves is identical in structure, and gas overcomes the spring action to open the valve port and output from the four-circuit output port through the channel.

4. The combined electrically controlled dryer according to claim 1, wherein the first check valve between the upper part of the dryer body and the lower part of the dryer body is closed rapidly at the instant of exhausting the dryer, so as to prevent the reverse flow of the output air and ensure that the pressure is not reduced.

5. The combined electrically controlled dryer according to claim 1, wherein the drying cylinder has a molecular sieve therein for filtering water in the gas.

6. The combined type electric control dryer according to claim 5, wherein when the dryer exhausts, the molecular sieve needs to be regenerated, and moisture in the molecular sieve is discharged out of the dryer, and the specific process is as follows: the whole vehicle system inputs an electric signal to a first internal coil of the electromagnetic valve, a valve port connected with a second one-way valve is opened, dry gas on the lower portion of the dryer body enters the upper portion of the dryer body through the valve port and the second one-way valve, so that the dry gas enters the inside of the drying cylinder to regenerate the molecular sieve, and moisture in the molecular sieve passes through the oil filter along with the gas and then passes through the valve port of the piston to be discharged out of the dryer from the exhaust muffler.

7. The combined type electric control dryer as claimed in claim 6, wherein when the molecular sieve is regenerated, the time for the whole vehicle system to input the electric signal to the electromagnetic valve is given according to the regeneration effect.

Technical Field

The invention relates to the field of dryers for automobiles, in particular to a combined type electric control dryer.

Background

1) The brake system of the commercial vehicle generally uses air pressure brake, which easily causes water accumulation of an air storage cylinder or corrosion of a pipeline joint in the use process, and in order to solve the problem of water accumulation or corrosion, a dryer is usually installed in the brake system to dry and filter compressed air, so that the compressed air in the brake system is dried and cleaned, and the normal operation of the vehicle is ensured.

2) The existing dryer used in the market is generally a mechanical structure dryer, the air exhaust unloading of the dryer, the molecular sieve regeneration and the air outlet closing of the dryer are realized through the relationship among spring force, air pressure and air pressure acting area, and the performance of the dryer is changed due to the attenuation of the spring force in the using process, so that the service life of the dryer is influenced, and the complaint of users is led.

3) The mechanical dryer is more complicated in structure, larger in appearance and incapable of meeting the requirements of users on miniaturization and light weight, and the electric control dryer can test the functions of the mechanical dryer through the electromagnetic valve, is simple in structure, miniaturized and light, and meets the requirements of users.

4) At present, with the intelligent development of commercial vehicles and the requirements on low carbon, energy conservation and the like of the vehicles, the mechanical dryer cannot adapt to tide, and the electric control dryer realizes intelligent energy conservation through an ECU control mode.

The overtaking mode comprises the following steps:

and acquiring an accelerator pedal signal through a CAN bus to realize the overtaking mode. When overtaking, the press is in the stop state and the engine can obtain power increase.

Overload mode:

when the engine is reversely dragged by the vehicle, the cut-off pressure of the system is increased to realize energy saving. For example, when the vehicle descends the slope, the press can utilize the energy of the engine which is dragged backwards to increase the system pressure to be higher than the normal cut-off pressure without increasing the fuel consumption, and additionally obtain the kinetic energy of the vehicle.

Regeneration after flameout:

after the flameout, the system additionally carries out a regeneration operation so as to keep the residual air in the pipeline dry.

Disclosure of Invention

The invention aims to provide a combined type electric control dryer aiming at the defects of the prior art, which is used for drying and filtering the gas coming from an air compressor, providing clean gas for a braking system and improving the reliability of the braking system.

The purpose of the invention is realized by the following technical scheme: a combined type electric control dryer comprises a dryer main body and a drying cylinder which are connected through a channel, wherein an oil filter is connected between an air inlet of the dryer main body and the drying cylinder; the dryer main body is divided into an upper part and a lower part, and a first one-way valve is arranged in a channel between the upper part and the lower part; the upper part of the dryer main body is connected with a piston, an electromagnetic valve and a dryer control port, the lower part of the dryer main body is connected with four-loop protection valves, and the four-loop protection valves are connected with an air storage cylinder of a whole vehicle pipeline through an output port of each protection valve;

the gas dried by the drying cylinder enters the upper part of the dryer main body, the first one-way valve is opened under the action of pressure to enter the lower part of the dryer main body, and the gas enters the air storage cylinder of the finished automobile pipeline through the four-loop protection valve;

when the pressure of the air cylinder reaches the required pressure, the dryer needs to be exhausted and unloaded, the electromagnetic valve is communicated with the lower part of the dryer main body through a channel, the whole vehicle system inputs an electric signal to a second internal coil of the electromagnetic valve, a valve port of the electromagnetic valve, which is communicated with the upper part of the dryer main body, is opened, and the gas in the lower part of the dryer main body enters the channel in the upper part of the dryer main body through the valve port and is output from a dryer control port;

the pressure in the partial channel on the dryer main body rises, the gas acts on the piston to open the valve port, and at the moment, the gas coming from the gas inlet of the dryer main body directly passes through the valve port of the piston and is discharged out of the dryer through the discharge muffler.

Furthermore, a second one-way valve is installed at the position, communicated with the electromagnetic valve, of the upper portion of the dryer main body, and part of gas entering the dryer main body after being dried by the drying cylinder extrudes the second one-way valve to seal the second one-way valve.

Furthermore, in the four-loop protection valve, each protection valve has the same structure, and gas overcomes the action of a spring, opens a valve port and is output from the output port of the four-loop through a channel.

Further, at the moment of exhausting of the dryer, the first one-way valve between the upper portion of the dryer body and the lower portion of the dryer body is closed rapidly, backflow of output air is prevented, and pressure is guaranteed not to be reduced.

Further, the drying cylinder is internally provided with a molecular sieve for filtering water in the gas.

Further, when the dryer exhausts, the molecular sieve needs to be regenerated, and water in the molecular sieve is discharged out of the dryer, and the specific process is as follows: the whole vehicle system inputs an electric signal to a first internal coil of the electromagnetic valve, a valve port connected with a second one-way valve is opened, dry gas on the lower portion of the dryer body enters the upper portion of the dryer body through the valve port and the second one-way valve, so that the dry gas enters the inside of the drying cylinder to regenerate the molecular sieve, and moisture in the molecular sieve passes through the oil filter along with the gas and then passes through the valve port of the piston to be discharged out of the dryer from the exhaust muffler.

Further, when the molecular sieve is regenerated, the time for the whole vehicle system to input the electric signal to the electromagnetic valve is given according to the regeneration effect.

The invention has the beneficial effects that: compared with the prior art, the combined type electric control dryer provided by the invention has the following effects:

1. the structure is optimized on the basis of the traditional dryer, so that the product is simple in structure, convenient to install and convenient to arrange, the inlet and the outlet are on the same side, the whole vehicle is convenient to connect and arrange through pipelines, and the dryer is suitable for heavy vehicles, medium vehicles and light vehicles and different vehicle types.

2. Compared with the electric control dryer in the same row, the electric control dryer has smaller volume and small occupied space for installation.

3. The electromagnetic valve replaces a load relief valve and a regeneration valve, and the ECU of the whole vehicle can realize intelligent control, thereby saving the actual fuel, and simultaneously can also control the air compressor (with ESS air compressor, clutch type air compressor; electric air compressor)

4. The modularized system is simple and convenient to configure and can realize various layouts

5. With multi-circuit protection valve (four-circuit/six-circuit)

6. According to the requirements of users, the loop pressure sensors of the port A and the port B can be integrated on the four loops of the dryer, and can be integrated with a pressure limiting valve to carry out secondary pressure reduction on the loops of the port C and the port D.

Drawings

FIG. 1 is a general structure diagram of a combined electric dryer according to the present invention;

FIG. 2 is an enlarged view of a portion I of FIG. 1;

FIG. 3 is an enlarged view of a portion II of FIG. 1;

FIG. 4 is a schematic diagram of the external structure of the combined electrically controlled dryer;

FIG. 5 is a schematic diagram showing the positions of the electromagnetic valve and the exhaust muffler of the combined electric-controlled dryer;

FIG. 6 is a schematic diagram of the four-circuit output port of the combined electrically controlled dryer;

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1, the combined electrically controlled dryer provided by the present invention comprises a dryer main body and a drying cylinder connected by a channel, wherein an oil filter is connected between an air inlet of the dryer main body and the drying cylinder; the dryer main body is divided into an upper part and a lower part, and a first one-way valve is arranged in a channel between the upper part and the lower part; the upper part of the dryer main body is connected with a piston, an electromagnetic valve and a dryer control port, the lower part of the dryer main body is connected with four-loop protection valves, and the four-loop protection valves are connected with an air storage cylinder of a whole vehicle pipeline through an output port of each protection valve;

the gas dried by the drying cylinder enters the upper part of the dryer main body, the first one-way valve is opened under the action of pressure to enter the lower part of the dryer main body, and the gas enters the air storage cylinder of the finished automobile pipeline through the four-loop protection valve;

when the pressure of the air cylinder reaches the required pressure, the dryer needs to be exhausted and unloaded, the electromagnetic valve is communicated with the lower part of the dryer main body through a channel, the whole vehicle system inputs an electric signal to a second internal coil of the electromagnetic valve, a valve port of the electromagnetic valve, which is communicated with the upper part of the dryer main body, is opened, and the gas in the lower part of the dryer main body enters the channel in the upper part of the dryer main body through the valve port and is output from a dryer control port;

the pressure in the partial channel on the dryer main body rises, the gas acts on the piston to open the valve port, and at the moment, the gas coming from the gas inlet of the dryer main body directly passes through the valve port of the piston and is discharged out of the dryer through the discharge muffler.

The combined type electric control dryer provided by the invention has the following specific working principle and working process:

as shown in fig. 1, 4, 5 and 6, gas (gas containing oil and water) is compressed by an air compressor pump, enters a dryer body from a dryer air inlet 1, passes through an oil filter 2, firstly, oil in the air is filtered, the water-containing gas enters a molecular sieve 4 in a drying cylinder through a first channel 3, and water is filtered, wherein part of the gas enters a twentieth channel 37 through a fifth channel 8 and a seventeenth channel 29, the gas presses a second one-way valve 36 to seal the second one-way valve, the other part of the gas enters a second channel 5, a first one-way valve 9 is opened, the gas enters a ninth channel 13, the part of the gas is divided into five parts, and the first part of the gas overcomes a first spring 16 through an eleventh channel 17, opens a first valve port 15, enters a tenth channel 14, is output from a port a of a four-loop output port A, and enters a whole vehicle pipeline air storage cylinder; the second part of gas passes through a sixteenth channel 26, overcomes a fourth spring 27, opens a fourth valve port 28, passes through the channel, is output from a port B of a four-loop output port, and enters a whole vehicle pipeline air storage cylinder; the third part of gas passes through a twelfth channel 18, overcomes a second spring 20, opens a second valve port 19, enters a thirteenth channel 21, is output from a port C of a four-loop output port, and enters a whole vehicle pipeline gas storage cylinder; the fourth part of gas passes through a fifteenth channel 25, overcomes a third spring 24, opens a third valve port 23, enters a fourteenth channel 22, is output from a four-loop output port D, and enters a whole vehicle pipeline gas storage cylinder; a fifth part of gas passes through the seventh channel 11 and the twentieth channel 40 and enters the twenty-first channel 39 in the solenoid valve 50;

as shown in fig. 2 and 3, when the pressure of the air reservoir reaches the required pressure, the dryer needs to be discharged and unloaded, the entire vehicle system (ECU) sends an electric signal to the second internal coil 45 of the electromagnetic valve 50, the second movable iron core 41 opens the seventh valve port 42 and closes the eighth valve port 48 under the action of the magnetic field force, the gas in the twenty-first channel 39 passes through the seventh valve port 42, enters the twenty-third channel 43, the eighth channel 12, the sixth channel 10 and the third channel 6, passes through the fourth channel 7 and is output from the dryer control port, and as the gas pressure in the third channel 6 rises, the gas acts on the piston 31, overcomes the fifth spring 33, pushes the piston 31, opens the fifth valve port 32, and the gas from the air compressor pump passes through the air inlet 1, the nineteenth channel 34, the fifth valve port 32, the eighteenth channel 30 and passes through the exhaust muffler 49 to be discharged out of the dryer. At the moment of exhausting, the first one-way valve 9 is closed rapidly to prevent the backflow of output air and ensure that the pressure is not reduced. Meanwhile, in order to prolong the service life of the molecular sieve 4, when the dryer exhausts, the molecular sieve 4 needs to be regenerated, moisture in the molecular sieve 4 is exhausted from the dryer, an electric signal is sent to the first internal coil 44 of the electromagnetic valve 50 by a whole vehicle system (ECU) for a certain time (the time is given according to the regeneration effect), the first movable iron core 35 opens the sixth valve port 38 under the action of magnetic field force, gas in the twenty-first channel 39 passes through the sixth valve port 38 and opens the second one-way valve 36, the dried gas passes through the twentieth channel 37, the seventeenth channel 29, the fifth channel 8 and the second channel 5 to regenerate the molecular sieve 4, and moisture in the molecular sieve 4 is exhausted from the dryer along with the gas through the first channel 3, the oil filter 2, the nineteenth channel 34, the fifth valve port 32 and the eighteenth channel 30 and the exhaust muffler 49. When the given regeneration time is reached, the first internal coil 44 of the electromagnetic valve 50 is disconnected, and the first movable iron core 35 closes the sixth valve port 38 under the action of the spring force, so that the regeneration is stopped.

When the whole vehicle uses air for the air storage cylinder, the air pressure is reduced, the air needs to be supplied again, the whole vehicle system (ECU) gives an outage signal to the second internal coil 45 of the electromagnetic valve 50, the second movable iron core 41 closes the seventh valve port 42 under the action of the spring force, the eighth valve port 48 is opened, meanwhile, the air in the dryer control port and the third channel 6 passes through the sixth channel 10, the eighth channel 12, the seventh valve port 42, the eighth valve port 48, the static iron core 47 and the exhaust port 46 and is exhausted to the atmosphere, the piston 31 closes the fifth valve port 32 under the action of the fifth spring 33, and the air pumped by the air compressor enters the dryer through the air inlet 1, the oil filter 2, the first channel 3 and the molecular sieve 4 to repeat the above actions.

The above-described embodiments are intended to illustrate rather than to limit the invention, and any modifications and variations of the present invention are within the spirit of the invention and the scope of the appended claims.