CN113291337A - Purification assembly, air conditioner for railway vehicle and railway vehicle - Google Patents

Abstract

The invention relates to a purification assembly, an air conditioner for a rail vehicle and the rail vehicle. The purification assembly comprising the IFD module is arranged in an accommodating cavity of the roof of a vehicle, and the IFD module is provided with a first position for purifying charged particles in an air duct; and a second position drawn upwardly from the first position for cleaning. Make the IFD module when maintaining, can follow and draw out between the wind channel and wash, then in the installation return air duct to make things convenient for the quick maintenance of IFD module, made things convenient for its continued use.

Description

Purification assembly, air conditioner for railway vehicle and railway vehicle

Technical Field

The invention relates to a purification assembly, an air conditioner for a railway vehicle and the railway vehicle, and belongs to the technical field of railway vehicles.

Background

In rail transit vehicles such as high-speed trains, motor trains, subway trains, and the like, the compartments are enclosed spaces, so ventilation and air exchange in the compartments and purification of air in the compartments are important. IFD (Intense Field Dielectric) is increasingly used in air cleaning equipment, including vehicles, due to its high efficiency, ozone-free dust-collecting effect. At present, the IFD module is generally fixedly arranged in an air duct of a vehicle, and when the IFD module needs to be periodically maintained and cleaned, the IFD module is time-consuming to assemble and disassemble, so that the problem of inconvenience in maintenance is brought.

Disclosure of Invention

The invention aims to solve the technical problem that the existing air purification equipment applied to the rail transit in the vehicle has poor purification effect.

The purification assembly is arranged on the roof of the railway vehicle and comprises an accommodating cavity for arranging the purification assembly, the purification assembly comprises at least one IFD module and a frame body for fixing the IFD module; the IFD module is provided with a first position for purifying charged particles in an air duct; and a second position drawn upwardly from the first position for cleaning.

Optionally, the frame body is fixedly connected in the accommodating cavity, the IFD module includes an electrical connection joint, the electrical connection joint is electrically connected with a corresponding power supply joint of the frame body through a contact conductive contact, and a power supply voltage of the electrical connection joint is a safe direct current voltage; or the IFD module comprises an electric connection joint which is electrically connected with the corresponding power supply head through a lead, and the lead is provided with a curling part which is used for moving a certain length when being upwards drawn out from the first position.

Optionally, the frame body further comprises a field electric module, the field electric module is provided with a first position for charging in the air duct and a second position for conveniently cleaning the frame body after the frame body is drawn out; the field electric module is arranged on the air inlet side of the air duct and connected to the safe direct-current voltage in the frame body, and the field electric module comprises a second high-voltage module used for boosting and supplying power.

Optionally, a first cover plate is arranged on the IFD module, the first cover plate is crimped to the IFD module, and the first cover plate is opened before the IFD module is pulled out; the IFD module comprises a first membrane which is electrified at least during working and a second membrane which is arranged at an interval with the first membrane, and an air channel is formed between the first membrane and the second membrane; the charged first film is coated with a dielectric material, and charged particles with the charged electric property opposite to that of the first film are adsorbed on the upper surface of the dielectric material.

Optionally, the IFD module is powered by a safety voltage, the IFD has a power supply rim, a first high voltage module for converting the safety voltage into an operating voltage is provided in the power supply rim, and a circuit for respectively powering the plurality of first membranes and the second membrane is further provided in the power supply rim, and the operating voltage is a positive voltage or a negative voltage of 3000V to 8000V.

Optionally, the IFD module is electrically connected in a frame body, the frame body is withdrawable to a second position for cleaning, the frame body comprises an electrical connection joint, the electrical connection joint is connected to the power supply head through a pluggable joint; the power supply of the power supply head is 110V or 220V, and the frame body is also provided with a power supply for converting the power supply into safe voltage direct current power supply; or the power supply head receives safe voltage direct current power supply.

Optionally, the frame body further comprises a field module, the field module is fixedly and electrically connected in the frame body, the field module is arranged on the air inlet side of the air duct, the field module and the IFD module are respectively connected to a safe direct current voltage in the frame body, and both the field module and the IFD module comprise a high-voltage pack for boosting and supplying power.

The invention also discloses an air conditioner for a railway vehicle, which comprises the purification component convenient to clean and is characterized in that: the air duct is communicated with the air inlet and the air return inlet, the inner wall surface of the air duct is made of sheet metal materials, and the purification assembly is arranged in the air duct;

the air conditioner includes a maintenance base surface for a person to stand and operate, the maintenance base surface being provided with a hole and a drawing passage for drawing the IFD module or a frame body containing the IFD module outwardly.

Optionally, the purification assembly is disposed at a downstream side of the air duct, and the purification assembly is close to the tube fin evaporator at the downstream side, a refrigerant tube of the evaporator is hermetically connected with a compressor, a four-way valve and a condenser, and a signal line is disposed at an outer side of a wall surface of the air duct and includes a conductive core and an insulating layer applied externally.

The invention also discloses a railway vehicle which comprises the air conditioner for the railway vehicle, wherein the roof of the railway vehicle comprises a sinking groove, and the air conditioner is arranged in the sinking groove.

According to the cleaning assembly convenient to clean, the cleaning assembly comprising the IFD module is arranged in the accommodating cavity of the roof of the vehicle, and the IFD module is provided with a first position for cleaning charged particles in the air duct; and a second position drawn upwardly from the first position for cleaning. Make the IFD module when maintaining, can follow and draw out between the wind channel and wash, then in the installation return air duct to make things convenient for the quick maintenance of IFD module, made things convenient for its continued use.

Drawings

FIG. 1 is a perspective view of an air treatment device according to an embodiment of the present invention;

FIG. 2 is a partially exploded schematic view of an air treatment device according to an embodiment of the present invention;

FIG. 3 is an exploded view of an air treatment device according to an embodiment of the present invention;

FIG. 4 is an enlarged view of A in FIG. 3;

FIG. 5 is a perspective view of a frame body of an air treatment device according to an embodiment of the present invention;

fig. 6 is a perspective view of an air conditioner for rail transit according to an embodiment of the present invention;

FIG. 7 is a partial schematic view of FIG. 6;

FIG. 8 is an enlarged view of B of FIG. 7;

fig. 9 is a sectional view of a vehicle for a track according to an embodiment of the present invention.

Reference numerals:

the air treatment device 100, a frame body 110, a first guide rib 111, a second guide rib 112, a third guide rib 113, a wire passing groove 114, a purification unit 120, a first film 121, a second film 122, a first edge strip 123, a field unit 130, a corona emitter 131, a porous frame 132, a filter screen 140, a power supply lead 151, a wire protection sleeve 152, a fixing sheet 153 and an upper cover 154;

the air conditioner comprises an air conditioner 200, a shell 210, an air return opening 211, an air outlet 212, an indoor side chamber 220, an evaporator 221, an evaporation fan 222, a sealing cover 223, an air return duct 224, an outdoor side chamber 230, a condenser 231, a condensation fan 232, a condensation side air inlet 233 and a refrigerant pipe 240;

vehicle 300, return air duct 310, and supply air duct 320.

Detailed Description

It is to be noted that the embodiments and features of the embodiments may be combined with each other without conflict in structure or function. The present invention will be described in detail below with reference to examples.

The invention provides a purification assembly convenient to clean, which is arranged on a railway vehicle, is arranged on the roof of the railway vehicle and comprises an accommodating cavity for arranging the purification assembly, wherein the purification assembly comprises at least one IFD module and a frame body for fixing the IFD module; the IFD module is provided with a first position for purifying charged particles in an air duct; and a second position drawn upwardly from the first position for cleaning.

As shown in fig. 1 to 9, the purification assembly is included in the air treatment device 100 in fig. 1, and the purification assembly is disposed in a receiving cavity, wherein the receiving cavity may be disposed between the air treatment device and the receiving cavity in a frame of a rail vehicle or in an air conditioner for a rail vehicle, so as to cooperate with the air conditioner to work simultaneously. The air treatment device is provided with at least one IFD module, one IFD module is shown in FIG. 1, wherein the air treatment device 100 comprises a frame body 110, a purification unit 120 is arranged in the frame body, and an inner cavity of the frame body 110 is used for air to pass through to form an air channel. The IFD module is disposed in the purification unit 120. When the IFD module works, a plurality of electrode plates which are arranged in parallel are arranged in the IFD module, and a high-voltage electric field is loaded between the electrode plates, so that dust charged particles in airflow are attracted by the electrode plates with opposite charged polarities and attached to the electrode plates when passing through the electrode plates, so that an air purification effect is achieved, and the IFD module is arranged in an air duct and is positioned at a first position; when the IFD module works for a period of time, dust on the electrode plate of the IFD module is accumulated to a certain degree and needs to be cleaned, so that the adsorption effect of the IFD module on the dust is not influenced, and the air purification effect is reduced. After cleaning is completed, the IFD module is installed back to the original first position so that the IFD module can continue to operate.

Through foretell structure for IFD module when maintaining, can follow and draw out between the wind channel and wash, then in the installation return air duct, thereby made things convenient for the quick maintenance of IFD module, made things convenient for its continued use.

In some embodiments of the invention, the IFD module comprises at least a first membrane that is electrically charged when in operation, and a second membrane spaced therefrom, with an air duct formed between the first and second membranes; the charged first film is coated with a dielectric material, and charged particles with the charged electric property opposite to that of the first film are adsorbed on the upper surface of the dielectric material.

As shown in fig. 1 to 5, an air treatment device 100 for protecting an IFD module includes a frame body 110, and a purification unit 120 disposed therein, wherein an inner cavity of the frame body 110 is used for air to pass through to form an air duct; the purification unit 120 comprises a first membrane 121 charged at least during operation and a second membrane 122 arranged at an interval with the first membrane 121, and an air duct is formed between the first membrane 121 and the second membrane 122; the charged first film 121 is coated with a dielectric material, and charged particles having a charge opposite to the charge of the first film 121 are adsorbed on the upper surface of the dielectric material. The purifying unit 120 is composed of a plurality of rows of first membranes 121 and second membranes 122 which are arranged at intervals in sequence, vertical insulating medium materials with the functions of isolation and support are arranged between the parallel first membranes 121 and second membranes 122, so that honeycomb-shaped air inlet units are formed, each honeycomb forms an air duct for air to pass through, and at least the surface of the first membrane 121 is provided with an insulating dielectric material, the first membrane 121 is made of a conductive material, and the surface of the first membrane is covered with the insulating dielectric material, so that charged particles which are opposite to the polarity of the electric voltage loaded on the first membrane 121 in the air are adsorbed on the surface of the first membrane 121 when the air passes through the air duct, and most of the charged particles are dust particles in the air, such as pollutant particles like PM2.5, and the like, so that the collection of the pollutant particles is realized, and the purpose of cleaning the air is realized.

And the frame body 110 is made of a metal material such as an aluminum alloy, a steel material, or an iron material. Different from common household equipment, the rail transit vehicle can vibrate in the running process, and equipment in a carriage needs to bear large inertia force when the rail transit vehicle runs at a high speed and brakes, so that the requirement on the strength of the equipment is relatively high, the frame made of metal materials can meet the strength requirement, a good protection effect on the purification unit 120 is achieved, and the phenomenon that the vibration or the inertia force is stressed or impacted to deform and damage is avoided. Furthermore, a high voltage is applied between the first and second membranes 121 and 122 of the purification unit 120, in the working process, the static induction phenomenon can be generated to the surrounding equipment, so that the surrounding equipment is charged with high-voltage static electricity, these high voltage static electricity can interfere with and impair the circuit operation of low voltage devices, such as the presence of control circuit boards, if the shell or the circuit board body for mounting the circuit board is charged with the static electricity, the components on the circuit board can be damaged, even the components can not work normally, and the frame of the vehicle body of the rail transit is generally a sheet metal part, the entire frame is grounded, and the metal frame 110 is grounded when it is mounted in a vehicle, so that the grounded metal frame 110 neutralizes the charges generated by electrostatic induction, so that the potential of the surface of the metal frame 110 is equal to the ground, so that no electrostatic induction is generated to the surrounding devices any more, that is, the metal frame body 110 plays an electrostatic shielding role. This eliminates the negative effects of static electricity on surrounding equipment, thereby playing a role in eliminating the negative effects caused by the high voltage of the purification unit 120, and improving the operational reliability and safety of the entire apparatus.

Further, the surface of the second film 122 may be coated with an insulating dielectric material that is the same as the surface of the first film 121, the second film 122 is also a conductive material, and the polarity of the voltage applied to the second film 122 is opposite to the polarity of the voltage applied to the first film 121, so that a strong electric field is formed between the first film 121 and the second film 122, so that the charged particles are adsorbed on the surface of the first film 121 or the second film 122 with the opposite polarity to the charging polarity when passing through the air duct. Compared with the way of applying a voltage to only the first membrane 121, the way of applying a voltage with opposite polarity to the second membrane 122 can form a stronger adsorption effect on the charged particles, thereby realizing a better collection effect on the pollutant particles.

In some embodiments of the present invention, the first membrane 121 is powered by positive or negative electricity at a voltage ranging from 3000V to 8000V, such as 6000V, which may be positive 6000V or negative 6000V, so as to adsorb charged particles opposite to the power source on the first membrane 121. Further, the second membrane 122 is loaded with a voltage with a polarity opposite to that of the first membrane 121, the voltage loaded on the second membrane 122 may be negative or positive, or may be directly grounded, and the voltage loaded on the second membrane 122 keeps the voltage between the first membrane 121 and the second membrane 122 in a range of 3000V to 8000V, taking the voltage as 6000V as an example, for example, when the first membrane 121 is loaded with positive 6000V or negative 6000V, the second membrane 122 may be directly grounded, so that the voltage between the two is 6000V; alternatively, the first membrane 121 is charged with a positive 4000V, the second membrane 122 is charged with a negative 2000V, such that the voltage between the two is also 6000V, or the first membrane 121 is charged with a negative 4000V, and the second membrane 122 is charged with a positive 2000V. This satisfies the voltage range, so that the electric field between the first film 121 and the second film 122 forms a strong adsorption effect on the charged particles. Taking the example of the electric field formed by grounding the first film 121 loaded with negative 6000V and the second film 122, when negatively charged particles enter between the first film 121 and the second film 122, the negatively charged particles are repelled by the negative voltage of the first film 121, and the negatively charged particles are neutralized by the grounded second film 122, so that the negatively charged particles are adsorbed, and the working process principle of the adsorption effect is not difficult to be found according to the existing principle that like charges repel and opposite charges attract under the condition that voltages are loaded on the other first film 121 and the second film 122.

In some embodiments of the present invention, as shown in fig. 5, the frame body 110 includes a guide structure for cooperating with the purification unit 120. A plurality of first guide ribs 111 protruding from the inner sidewall surface are provided on the inner sidewall surface of the frame body 110, and the plurality of first guide ribs 111 may be integrally formed with the frame body 110 to increase the strength thereof. The first guide rib 111 may be a separate sheet metal member, and as shown in fig. 5, the sheet metal member is fixed to the inner wall surface of the frame body 110 by welding, caulking, or the like. The first guide rib 111 facilitates guiding of the purification unit 120 during installation, and also serves as a position limiting function for the purification unit 120 to limit movement of the purification unit 120 in the direction of airflow passing. And the bottom plate and the side plate of the frame body 110 are integrally formed, and the inner wall surface of the bottom plate can be provided with a limiting structure such as a rubber block to limit the bottom of the purifying unit 120, and also prevent the bottom of the purifying unit 120 from being collided and deformed with the bottom plate due to vibration or inertia in the running process of the vehicle, so that the elastic buffer effect is achieved.

In some embodiments of the present invention, the IFD module is provided with a first cover plate that is crimped to the IFD module and that is opened prior to extraction of the IFD module. As shown in fig. 1 to 3, the first cover plate is an upper cover 154, the upper cover 154 is fixed to the frame body 110 by a fixing member such as a screw, and the purification unit 120 is fixed to the inner space of the frame body 110 by the upper cover 154 and the first guide rib 111.

In some embodiments of the invention, the IFD module is powered by a safety voltage, the IFD has a power supply rim in which is located a first high voltage module (not shown) for converting the safety voltage to an operating voltage, and the power supply rim is further provided with circuitry for respectively powering the plurality of first membranes and the second membranes, the operating voltage being a positive or negative voltage of 3000V to 8000V. The first high-voltage module is internally provided with a booster circuit for boosting according to input low-voltage direct current so as to output high voltage, if the voltage direct current input by the first high-voltage module is 12V or 24V, the booster circuit boosts the voltage to generate positive 6000V high voltage, the positive high-voltage output end is electrically connected to the first membrane 121, and the first membrane 121 is connected with a common grounding end of the first high-voltage module so as to form a 6000V electric field.

In some embodiments of the present invention, the frame body is fixedly connected in the accommodating cavity, the IFD module includes an electrical connection terminal electrically connected to the corresponding power supply terminal through a wire, and the wire has a curled portion for facilitating movement by a certain length when being pulled out upward from the first position.

The frame body 110 is fixed in the air duct, and the IFD module is fixed in the frame body 110 in operation to perform a purification function of adsorbing charged particles, and in maintenance, the IFD module is drawn out from the frame body 110 to be cleaned.

In this embodiment, as shown in fig. 2, 3 and 5, the purification unit 120 includes a first side bar 123 in which a first power supply line communicating with the plurality of first membranes 121 is disposed, and the other end of the first power supply line communicates with a first output terminal of the first high voltage module; the first high-voltage module is arranged in the first edge 123 and fixed in the first edge 123 through glue seal; the second power supply thin lines are communicated with the plurality of second films 122, the other ends of the second power supply thin lines are communicated with the second output end of the first high-voltage module, the second power supply thin lines are mainly arranged on a second side strip, and the thickness of the second side strip is smaller than that of the first side strip 123. As shown in fig. 3, the first edge strip 123 is disposed at one side of the purification unit 120, such as the right side of fig. 3, and has a certain thickness for accommodating a first high voltage module having two output ends, wherein the first edge strip 123 is further provided therein with first power supply fine wires respectively communicating with all the first membranes 121, and the first power supply fine wires are further electrically connected with one of the output ends of the first high voltage module, such as the first output end, and the other side of the purification unit 120 is provided with a second edge strip having a narrower thickness, because there is no need to provide a space for accommodating the first high voltage module, and the second edge strip is provided therein with second power supply fine wires respectively communicating with all the second membranes 122, and the second power supply fine wires are finally and commonly electrically connected to the other output end of the first high voltage module, such as the second output end, so as to electrically connect the first membrane 121 and the second membrane 122 through the two output ends of the first high voltage module, so that a high voltage electric field is formed between the first film 121 and the second film 122.

The purifying unit 120 is connected with a power supply wire 151 for supplying power to the first high voltage module at a side where the first high voltage module is disposed, and a wire passing groove 114 for passing the power supply wire 151 is disposed at a side of the frame body 110, wherein the length of the wire passing groove 114 is from an end surface where a side plate of the frame body 110 is connected with the upper cover 154, so that the purifying unit 120 connected with a power supply wire does not interfere with a side edge of the frame body 110 when inserted into or withdrawn from the frame body 110. Further, a wire protecting sleeve 152 for the power supply wire 151 to pass through is further disposed on the wire guiding groove 114, as shown in fig. 2 and 5, the wire protecting sleeve 152 is made of a soft material such as rubber or silica gel and is fixed in the wire guiding groove 114 to prevent the power supply wire from being cut by the edge of the hard wire guiding groove 114 to cause short circuit of the power supply wire, and an opening is disposed on the wire protecting sleeve 152 at a position opposite to the notch of the wire guiding groove 114 to facilitate the power supply wire 151 to be taken out of or put into the wire protecting sleeve 152.

When the purifying unit 120 is mounted in the frame body 110, the power supply lead 151 forms a crimp portion to facilitate the purifying unit 120 to move a certain length with respect to the frame body 110 when the purifying unit 120 is drawn out from the frame body 110, and then the power supply lead 151 is disconnected from the power supply connector to take out the purifying unit 120 for maintenance and cleaning.

In some embodiments of the present invention, the IFD module includes an electrical connection terminal electrically connected to a corresponding power supply terminal of the frame body through the contact conductive contact, and a power supply voltage of the electrical connection terminal is a safety dc voltage. The operating voltage of the IFD module is typically 12V or 24V dc.

The difference between the structure of the purifying unit 120 and the structure of the frame body 110 with the power supply wires 151 and the structure of the frame body 110 with the wire passing slots 114 in this embodiment is that the frame body 110 is provided with a power supply end electrically connected to the purifying unit 120 after being in place, and the power supply end has an elastic power supply matching part which forms an elastic power supply part together with the power taking structure corresponding to the purifying unit 120, and the elastic power supply part provides 12-48V, such as 24V, direct current.

The elastic power supply matching part may be a retractable part provided with an elastic member such as a spring, for example, the elastic member is connected with a metal power supply terminal so that the metal terminal is retractable, the power supply terminal is electrically connected with a dc power supply terminal on the frame body 110, for example, the dc power supply terminal may be a power supply socket installed at a side of the frame body 110, so that external dc power is inserted into the power supply socket through the power supply plug to realize power supply. The elastic power supply matching portion may be disposed on an inner wall surface of a bottom edge or an inner wall surface of a side edge of the frame body 110, and a power-taking structure, such as a metal sheet with excellent conductivity and less prone to oxidation, such as a nickel-plated copper sheet, is disposed on a corresponding edge of the purifying unit 120, and the metal sheet is electrically connected to a dc input terminal of a high-voltage module in the purifying unit 120. When the purifying unit 120 is inserted into the frame body 110 along the guide structure, the metal power supply head is compressed after abutting against one side of the purifying unit 120, and when the purifying unit 120 is in place, the metal power supply head is compressed and abuts against the metal sheet, so that the electrical connection between the two is realized, and the power supply of the purifying unit 120 by the elastic power supply fitting part is realized. This solution eliminates the need for two power supply units and the power supply wires 151 of the field unit 130, and also eliminates the need for the wire passing groove 114, thereby facilitating the installation of the field unit 130 and the purification unit 120, saving the power supply wires and reducing the cost.

In some embodiments of the invention, the frame body further comprises a field electric module, the field electric module is provided with a first position for charging in the air duct and a second position for extracting the frame body to facilitate cleaning; the field electric module is arranged on the air inlet side of the air duct and connected to the safe direct-current voltage in the frame body, and the field electric module comprises a second high-voltage module used for boosting and supplying power.

As shown in fig. 2 and 3, the field electric unit 130 includes a plurality of discharge tips for charging airborne dust particles, and a second high voltage module (not shown) is disposed in the field electric unit 130 for supplying power to the field electric unit 130. The field electric unit 130 mainly charges dust particles in the air to charge the dust particles, and then the dust particles are adsorbed by a high-voltage electric field formed between the first membrane 121 and the second membrane 122 when the airflow enters the purifying unit 120, so that the air purifying function is completed. Wherein the field electric unit 130 comprises a porous frame 132 made of metal material and a plurality of corona emitters 131, the porous frame 132 is arranged at the front end of the air intake direction, the corona emitters 131 are arranged at the rear end, uniformly distributed gaps are formed on the porous frame 132, a corona emitter 131 formed by a discharge tip is correspondingly arranged at the center of each gap, wherein the group of the porous frame 132 and the corona emitters 131 is respectively electrically connected with two output ends of the second high-voltage module, the voltage output by the second high-voltage module is generally higher than the voltage output by the first high-voltage module so as to achieve the purpose of ionizing air, for example, the voltage output by the second high-voltage module can reach about 10KV, for example, the low-voltage end, namely the common ground end, of the second high-voltage module is connected with the porous frame 132, and the high-voltage end is connected with the group of the corona emitters 131, so that the tip of each corona emitter 131 generates ion current for ionizing air, its ion flow moves towards the porous frame 132 under the electric field left and right, and when the air passes through the field electric unit 130, its airborne dust particles collide with the ion flow and are charged, forming a charging effect, and then enter the purification unit 120 to be adsorbed. The second high voltage module may also be disposed in one side of the field unit 130, as shown in fig. 3, the right side of the field unit 130 is wider, so that the second high voltage module is accommodated therein, and a power supply end is formed at the side to supply power by external direct current.

Similar to the above-mentioned power supply connection structure of the purification unit 120, one side of the field unit 130 can also be powered by providing a power supply wire 151, which passes through the wire duct 114 to supply dc power to the field unit 130 when connected to the power supply terminal. Or the power supply end is arranged on the frame body 110, the electricity taking structure is arranged on the field unit 130, and the elastic power supply matching part of the power supply end and the electricity taking structure jointly form an elastic power supply part, so that a power supply lead is omitted. The specific structure is similar to the elastic power supply part of the purifying unit 120, and is not described in detail herein.

In some embodiments of the present invention, a filtering net 140 made of metal is further disposed on the air intake side of the field unit 130. As shown in fig. 2 and 3, the filter screen 140 is a dense metal screen, so as to perform a preliminary filtration of dust in the air, and to adsorb larger dust particles on the metal screen. And a certain distance is formed between the filter screen 140 and the field electric unit 130, the distance range is 15 mm to 70 mm, for example, 30CM can be set, and by setting a certain proper distance, the high voltage on the field electric unit 130 is prevented from forming a discharge effect on the metal mesh, so as to play an isolation role, thereby reducing the electric field strength of the field electric unit 130 itself to influence the ionization effect on air. Moreover, the metal filter mesh 140 with a proper distance also plays a role of electrostatic shielding for the high voltage electricity of the field electric unit 130, so as to prevent the field electric unit 130 from generating electrostatic induction to the low voltage equipment on one side of the metal filter mesh 140 to interfere or damage the operation of the low voltage equipment.

In some embodiments of the present invention, as shown in fig. 5, a plurality of second guide ribs 112 and third guide ribs 113 are further disposed on the side wall of the frame body 110, and the guide ribs have the same function as the first guide ribs 111, and respectively perform a guiding function and a limiting function on the field electric unit 130 and the filter screen 140.

In some embodiments of the invention, the IFD module is electrically connected within a frame body, the frame body being extractable to a second position for cleaning, the frame body comprising an electrical connection joint, the electrical connection joint being connected to the power supply head by a pluggable joint; the power supply of the power supply head is 110V or 220V, and the frame body is also provided with a power supply for converting the power supply into safe voltage direct current power supply; or the power supply head receives safe voltage direct current power supply.

The difference from the scheme of fixing the frame body in the air duct in the previous embodiment is that the IFD module is fixed in the frame body, and the frame body can be drawn out from the air duct, that is, when the IFD is maintained and cleaned, the frame body for accommodating the IFD module needs to be drawn out together. And an electric connection joint is arranged on one side of the frame body and is connected with a power supply end of the IFD module, and external power supply is connected to the electric connection joint through the power supply head so as to realize power supply to the IFD module. Wherein an external direct current voltage such as 24V voltage can be directly inputted through the power supply connector; or a power adapter is arranged on one side of the frame body, the output end of the power adapter is connected with the electric connection joint to provide direct current voltage for the IFD module, the input end of the power adapter is connected with the power supply joint, and the power supply joint can be directly connected with alternating current voltage such as 110V or 220V power frequency alternating current.

Further, in some embodiments of the present invention, the frame further includes a field module, the field module is electrically connected to the frame, the field module is disposed on the air inlet side of the air duct, the field module and the IFD module are respectively connected to a safe dc voltage in the frame, and both the field module and the IFD module include a high voltage pack for boosting and supplying power.

Similar to the above-mentioned solution in which the frame body is fixed in the air duct, in this embodiment, a field module is further added, and the structure of the field module is the same as that in the above-mentioned embodiment, wherein the IFD module and the field module are both provided with high voltage packets, i.e., the first high voltage module and the second high voltage module, to provide the high voltage required for the operation for the two modules.

In some embodiments of the present invention, fixing structures are further provided at both sides of the frame body 110 to fix the frame body 110 within the vehicle frame. As shown in fig. 2 and 5, the fixing structure is a fixing plate 153 disposed on both sides of the frame body 110, a through hole for a fixing member such as a screw or a screw to pass through is disposed on the fixing plate 153, and the fixing plate 153 may be integrally formed with the sides of the frame body 110 or fixed to the sides by welding or riveting as shown in fig. 5. The fixing sheet 153 is used for stably and reliably fixing the frame body 110 in the vehicle frame, so that the equipment such as the purification unit 120 installed in the frame body 110 is prevented from being damaged by shaking or inertia in the high-speed running process of the vehicle, and the fixing sheet 153 and the vehicle frame are fixed through a fixing piece made of a metal material, such as a screw nut, so that the frame body 110 and the vehicle frame are well electrically connected, namely well grounded, so that the frame body 110 and the metal filter screen 140 form an effective electrostatic shielding effect on high voltage in the field electric unit 130 and the purification unit 120, and the running reliability of the whole equipment is improved.

The invention also provides an air conditioner for the rail vehicle, which comprises the cleaning component which is convenient to clean and is provided by the embodiment, wherein the air channel is communicated with the air inlet and the air return inlet, the inner wall surface of the air channel is made of sheet metal materials, and the cleaning component is arranged in the air channel; the air conditioner includes a maintenance base surface for a person to stand and operate, the maintenance base surface being provided with a hole and a drawing passage for drawing the IFD module or a frame body containing the IFD module outwardly.

Through set up convenient outside pull in order to take out the structure that contains the IFD module in the maintenance base face to make things convenient for the IFD module to maintain and wash.

As shown in fig. 6 to 8, the air conditioner 200 includes a return air duct 224, the air processing device 100 including the purifying assembly according to the above embodiment is disposed in the return air duct 224, and the air outlet side of the frame body 110 of the air processing device 100 further includes laminated aluminum foil layers, which close the air outlet end face of the frame body 110, and the distance between the aluminum foil layers is 0.5 mm to 15 mm. The air conditioner 200 includes an evaporator 221, an evaporation fan 222, a condenser 231, a condensation fan 232, a compressor, a refrigerant pipe 240, and the like, to form a cooling or heating system. The air conditioner 200 includes a rectangular housing 210 made of metal, and the thickness of the housing 210 is much smaller than the length and width of the housing 210, so as to form a thin installation chamber with a relative length, and the installation chamber is usually installed on the roof of a rail transit vehicle, so as to meet the requirement that the installation chamber does not occupy the passenger space capacity in the carriage space. As shown in fig. 6, the installation chamber is at least divided into two sub-chambers, namely an indoor side chamber 220 and an outdoor side chamber 230, wherein the indoor side chamber 220 is sequentially installed in the air supply direction and comprises an evaporation fan 222, an evaporator 221 and an air processing device 100, the evaporation fan 222 is connected with the air exhaust port 212, and a plurality of detachable sealing covers can be further arranged on the surface of the indoor side chamber 220 to respectively seal the evaporation fan 222, the evaporator 221 and the air processing device 100, so as to achieve a waterproof effect. The outdoor side chamber 230 includes a condenser 231, a condensing fan 232 and a compressor (not shown), the air inlet side of the condenser is communicated with the condensing side air inlet 233, in fig. 6, there are two indoor side chambers 220, one outdoor side chamber 230, the indoor side chambers 220 are disposed at two ends of the outdoor side chamber 230, i.e. at two sides of the length direction of the housing 210, and the outdoor side chamber 230 is disposed at the middle of the length direction of the housing 210. As shown in fig. 7, one end of the air return duct 224 is a return air inlet 211 of the heat exchange side of the indoor chamber 220, and the other end is communicated with the air inlet surface of the air processing device 100, specifically, the air inlet side of the filter screen 140 of the air processing device 100. Taking the air conditioner 200 working in the cooling mode as an example, the external air flow of the air conditioner 200 enters the filter screen 140 of the air processing device 100 through the air return duct 224 for primary filtering to filter out large-diameter dust particles in the air, then the dust particles are charged or electrified through the field electric unit 130, and then the dust particles are adsorbed through the purification unit 120, so that most of the dust particles in the air are adsorbed to form clean air, the clean air enters the evaporator 221 for heat exchange, the hot air is cooled into cold air through the refrigeration of the evaporator 221, and the cold air enters the evaporation fan 222, is finally discharged from the air outlet 212 of the air conditioner 200, and is conveyed to the inside of the vehicle cabin through the air outlets of the air supply ducts connected with the air outlet 212 and arranged at two sides of the vehicle cabin. The evaporator 221 includes stacked aluminum foil layers and heat exchange tubes, the heat exchange tubes are communicated with the refrigerant tubes 240, the heat exchange tubes are arranged in mounting holes of the aluminum foil layers in a penetrating manner, and low-temperature cold of low-temperature refrigerants in the heat exchange tubes is conducted to the aluminum foil layers through heat exchange tube walls, so that the low-temperature aluminum foil layers carry out refrigeration and heat exchange on air passing through the low-temperature aluminum foil layers.

A plurality of detachable sealing covers 223 are further arranged in the indoor side chamber 220, and the sealing covers 223 are distributed and seal chamber parts corresponding to the two air return channels 224, the air treatment device 100, the evaporator 221 and the evaporation fan 222. Thereby facilitating separate removal of the sealing caps 223 for maintenance of the devices. A service base is formed at the position where these seal caps 223 are located.

In some embodiments of the present invention, the purification assembly is disposed at the downstream side of the air duct, and the purification assembly is close to the tube-fin evaporator 221 at the downstream side, the refrigerant tube of the evaporator 221 is hermetically connected with a compressor, a four-way valve and a condenser 231, and the outside of the wall surface of the air duct is provided with a signal line, which includes a conductive core and an insulating layer coated outside.

The evaporator 221 and the frame body 110 of the air processing device 100 are arranged in parallel in the air blowing direction of the air flow, and the distance between the evaporator and the frame body is set to be 0.5 mm to 15 mm, for example, about 2 mm. Since the evaporator 221 is grounded together with the metal casing 210 of the air conditioner 200, in the above-mentioned embodiment of the air treatment device 100, when the purifying unit 120 operates, the high voltage membrane of the purifying unit 120 generates electrostatic induction phenomenon to the surrounding devices, and besides the purifying unit 120, the field unit 130, the high voltage applied to the discharge tip of the field unit 130 and opposite to the ground, also generates electrostatic induction phenomenon to the surrounding devices, by arranging the evaporator 221 close to the air outlet side of the air treatment device 100, i.e. the air outlet side of the purifying unit 120, the densely distributed aluminum foil layers of the evaporator 221 form a good electrostatic shielding surface, and adding the metal filter screen 140 on the air inlet side of the air treatment device 100, the metal frame body 110 and the upper cover 154, so as to form a metal shielding cavity around the high voltage electricity of the purifying unit 120 and the field unit 130, thereby completely eliminating the electrostatic induction and avoiding the damage of the high voltage electricity inside the air treatment device 100 to surrounding low voltage equipment caused by the electrostatic induction, thereby finally improving the operation reliability of the whole air conditioner 200. Also, at the instant when the air treatment device 100 is powered on and off, the high voltage inside the purification unit 120 and the field unit 130 is instantaneously turned on and off, thereby generating electromagnetic interference. Because the installation space of the vehicle is compact, because signal lines are arranged on the outer side of the wall surface of the air duct and comprise communication lines, for example, the communication lines which are arranged on the outer wall surface of the air conditioner frame body and have a control effect on the vehicle, electromagnetic interference generated by connection and disconnection of the high voltage can influence the transmission of line numbers in the communication lines, and the communication signals can be changed when the signals are seriously distorted, so that misoperation is caused by control, and the safety of the vehicle operation is ensured. It is therefore important to ensure that signal transmission and equipment operation during vehicle operation do not interfere, i.e., that EMI (electromagnetic interference) immunity is achieved. The metal shielding cavity is formed by the grounding of the evaporator 221, the metal frame body 110, the metal filter screen 140 and the upper cover 154, and electromagnetic interference signals are shielded in the cavity and cannot be transmitted to the outside or severely attenuated electromagnetic interference signals, so that the purpose of avoiding parameter interference on peripheral equipment or signal transmission lines is achieved. Thereby improving the operational reliability of the whole vehicle operation.

Moreover, since the heat dissipating fins of the evaporator 221 have a certain width, so that the evaporator 221 has a certain thickness, and when the air conditioner 200 is in a cooling operation in a vehicle, condensed water is generated on the fin surfaces of the evaporator 221, and there may be some remaining dust particles in the air coming out of the purifying unit 120 of the air treatment device 100, for example, a lot of dust particles accumulated on the first film 121 and the second film 122 of the purifying unit 120 after a long time of use are not cleaned in time, which may reduce the ability of the purifying unit 120 to adsorb dust particles, so that there may be some amount of dust particles in the air coming out from the purifying unit 120, and at this time, when the air enters the evaporator 221 again, the heat exchanging fins, which are relatively wide and densely distributed with respect to the thickness of the purifying unit 120, may continue to adsorb the dust particles, because the dust particles are charged by the field electric unit 130, and heat transfer fin is grounded, electrified dust particle meets the fin of ground connection and carries out the electric potential neutralization like this, with this make the fin to these dust particle production stronger adsorption efficiency, and because the surface of fin has still condensed the comdenstion water, the comdenstion water has further strengthened the absorption to dust particle, thereby make the dust particle who comes out from purification unit 120 can be effectual by evaporimeter 221 fin absorption, and because gravity flows away downwards by the comdenstion water absorption, and can not accumulate on the surface of fin, thereby long-time work can not influence the adsorption efficiency of fin to dust particle yet. Therefore, the evaporator 221 is disposed in front of the air outlet direction of the air processing device 100, so as to form electrostatic shielding and electromagnetic interference shielding effects, and simultaneously, perform an adsorption effect on the dust particles leaked from the purifying unit 120, so that the cleanliness of the air output from the air conditioner 200 is finally ensured. Thereby functioning as an enhancement to clean air in conjunction with the air treatment device 100.

The invention also provides a rail vehicle, wherein the air conditioner for the rail vehicle is arranged in the rail vehicle, and the roof of the rail vehicle comprises a sinking groove, and the air conditioner is arranged in the sinking groove. As shown in fig. 9, a sunken groove matched with the size of the air conditioner 200 is formed on the roof of the vehicle 300, the sunken groove forms a mounting opening of the air conditioner 200 to mount the air conditioner 200, the upper surface of the air conditioner 200 is directly exposed out of the top of the vehicle 300, and the IFD module can be conveniently drawn out for maintenance and cleaning through a maintenance base surface of the air conditioner 200. An air supply duct 320 is arranged in the carriage, for example, the air supply duct 320 is arranged on two sides of the top of the carriage, one end of the air supply duct 320 is communicated with the air outlet 212 of the air conditioner 200, and the other end is communicated with a plurality of air supply outlets; a return air duct 310 is also arranged in the carriage, one end of the return air duct 310 is connected with an air inlet of the carriage, and the other end of the return air duct 310 is connected with a return air inlet 211 of the air conditioner 200; when the air conditioner 200 is in operation, the cooled or heated air flow is output from the plurality of air supply outlets and enters the passenger space, the air in the passenger space is subjected to heat exchange, then returns to the air return inlet 211 through the air return duct 310 and enters the air treatment device 100 of the air conditioner 200 for dust particle adsorption, and then enters the evaporator 221 for heat exchange and is discharged from the air outlet 212.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (10)

1. A purification assembly convenient to clean is arranged on a railway vehicle, and is arranged on the roof of the railway vehicle, and is characterized by comprising an accommodating cavity for arranging the purification assembly, wherein the purification assembly comprises at least one IFD module and a frame body for fixing the IFD module; the IFD module is provided with a first position for purifying charged particles in an air flue; and a second position drawn upwardly from the first position for cleaning.

2. The purification assembly of claim 1, wherein the frame body is fixedly connected within the receiving cavity, the IFD module comprises an electrical connection terminal electrically connected to a corresponding power supply terminal of the frame body via a contact conductive contact, the power supply terminal providing a safe dc voltage; or the IFD module comprises an electric connection joint which is connected with a corresponding power supply head through a lead to be electrically connected, and the lead is provided with a curling part which is used for moving a certain length when being drawn out upwards from the first position.

3. The purification assembly of claim 2, further comprising a field module within the frame, the field module having a first position in which the air channel is charged and a second position in which the frame is withdrawn for cleaning; the field electric module is arranged on the air inlet side of the air duct, is connected to the safe direct-current voltage in the frame body, and comprises a second high-voltage module used for boosting and supplying power.

4. The purification assembly of claim 2, wherein the IFD module is provided with a first cover plate that is crimped to the IFD module and that is opened prior to extraction of the IFD module; the IFD module comprises a first membrane which is electrified at least during working and a second membrane which is arranged at an interval with the first membrane, and an air channel is formed between the first membrane and the second membrane; and a dielectric material is coated outside the charged first film, and charged particles with the charged electric property opposite to that of the first film are adsorbed on the upper surface of the charged first film.

5. The purification assembly of claim 4, wherein the IFD module is powered by a safety voltage, the IFD has a power supply rim, a first high voltage module within the power supply rim for converting the safety voltage to an operating voltage, and circuitry is provided in the power supply rim for respectively powering the plurality of first membranes and the plurality of second membranes, the operating voltage being a positive or negative voltage of 3000V to 8000V.

6. The purification assembly of claim 1, wherein the IFD module is electrically connected within the frame body, the frame body being extractable to the second, cleaning position, the frame body including an electrical connection tab that is connectable to a power supply header by a pluggable tab; the power supply of the power supply head is 110V or 220V, and the frame body is also provided with a power supply for converting the power supply into safe voltage direct current power supply; or the power supply head receives safe voltage direct current power supply.

7. The purification assembly of claim 6, further comprising a field module electrically and fixedly connected to the frame, wherein the field module is disposed at an air inlet side of the air duct, the field module and the IFD module are respectively connected to a safe DC voltage in the frame, and both the field module and the IFD module comprise a high voltage pack for boosting and supplying power.

8. An air conditioner for a railway vehicle comprising a cleaning-facilitating purification assembly as claimed in any one of claims 1 to 7, characterized in that: the air duct is communicated with the air inlet and the air return inlet, the inner wall surface of the air duct is made of sheet metal materials, and the purification assembly is arranged in the air duct;

the air conditioner comprises a maintenance base surface for people to stand and operate, wherein the maintenance base surface is provided with a hole and a drawing channel and is used for drawing the IFD module or a frame body containing the IFD module outwards.

9. The air conditioner as claimed in claim 8, wherein the purifying assembly is disposed at a downstream side of the air duct, and the purifying assembly is disposed adjacent to the tube-fin evaporator at the downstream side, a refrigerant tube of the evaporator is hermetically connected with a compressor, a four-way valve and a condenser, and a signal line is disposed at an outer side of a wall surface of the air duct, and the signal line includes a conductive core and an insulating layer applied externally.

10. A rail vehicle comprising an air conditioner for a rail vehicle as claimed in claim 8 or 9, characterized in that: the roof of the railway vehicle comprises a sinking groove, and the air conditioner is arranged in the sinking groove.

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