CN213480403U - Adjustable flow path and fresh air conditioner - Google Patents

Abstract

The application discloses an adjustable flow path and a fresh air conditioner, wherein the adjustable flow path comprises a liquid inlet pipe, a gas collecting pipe, a first flow path and a second flow path, the first flow path comprises an inlet end and an outlet end, the inlet end is connected with the liquid inlet pipe, the outlet end is connected with the gas collecting pipe, and an adjusting section is arranged between the inlet end and the outlet end; the second flow path is provided with an introducing pipe and a discharging pipe, the introducing pipe is communicated with the liquid inlet pipe and the adjusting section, and the discharging pipe is communicated with the adjusting section and the gas collecting pipe; the refrigerant flows through the inlet end and the discharge end in sequence to form a first adjusting pipeline, and the refrigerant flows through the inlet pipe and the discharge end in sequence to form a second adjusting pipeline. The utility model discloses, first flow path is a whole passageway, has add the second flow path, and the second flow path sets up in the regulation section of first flow path to fall into two sections strokes with first flow path, through increasing the refrigerant flow, shorten the dual function improvement heat exchange efficiency of flow, thereby the temperature that the joining of reply new trend leads to influences, effectively improves heat transfer ability and temperature regulation ability.

Description

Adjustable flow path and fresh air conditioner

Technical Field

The present application relates generally to an air conditioner, and more particularly, to an adjustable flow path and a fresh air conditioner.

Background

Most of indoor units of split wall-mounted air conditioners in the current market have no fresh air exchange function. And a fresh air exchange function is added to part of the air conditioners, an independent air duct system is mainly added, and a fan are added in an air duct to drive air suction.

When the air conditioner refrigerates in summer, if a fresh air system is opened, the temperature of inlet air is higher, the state of the heat exchanger is still the original state, the inlet air can be insufficiently cooled, the temperature of outlet air is higher, the indoor environment temperature is higher, the air conditioner cannot achieve the purpose of cooling, and the heating effect is the same as the actual heating effect. Therefore, the fresh air is processed by utilizing the original heat exchanger structure, insufficient heat exchange can be caused, the heat exchange capacity is insufficient, the air outlet temperature is higher than normal, the cooling effect cannot be achieved, and the comfort is reduced.

In view of this, it is necessary to improve the structure of the existing fresh air conditioner to improve the heat exchange capability.

SUMMERY OF THE UTILITY MODEL

It is a primary object of the present application to overcome the above-mentioned deficiencies of the prior art by providing an adjustable flow path comprising an inlet pipe and a collector pipe, comprising;

the first flow path comprises an introduction end and a discharge end, the introduction end is connected with the liquid inlet pipe, the discharge end is connected with the gas collecting pipe, and an adjusting section is arranged between the introduction end and the discharge end; and the number of the first and second groups,

the second flow path is provided with an introducing pipe and a discharging pipe, the introducing pipe is communicated with the liquid inlet pipe and the adjusting section, and the discharging pipe is communicated with the adjusting section and the gas collecting pipe;

the refrigerant flows through the inlet end and the discharge pipe in sequence to form a first adjusting pipeline, and the refrigerant flows through the inlet pipe and the discharge pipe in sequence to form a second adjusting pipeline.

According to the utility model discloses an embodiment, the inlet tube with the junction of feed liquor pipe is equipped with first valve, the discharge pipe with be equipped with the second valve between the discharge pipe.

According to an embodiment of the present invention, the first flow path is an S-shaped coil, and the inlet pipe and the discharge pipe are straight pipes.

The utility model also discloses a new trend air conditioner, include:

the heat exchanger comprises the adjustable flow path with the structure; and the number of the first and second groups,

and the fresh air system comprises an air duct, and an air outlet of the air duct faces to the upstream side of the heat exchange airflow of the heat exchanger.

The utility model also discloses a new trend air conditioner, include:

the heat exchanger comprises the adjustable flow path with the structure;

the fresh air system comprises an air duct and a sealing cover arranged at the inlet of the air duct, the air outlet of the air duct faces to the air inlet side of the heat exchanger, and,

the regulating system comprises a switch piece arranged on the air duct, the switch piece is connected with a regulating circuit, and the regulating circuit is electrically connected with the first valve and the second valve;

the cover rotates to open or close the air duct, and the cover rotates to drive the switch piece to act, so that the regulating circuit is switched on or switched off.

According to the utility model discloses an embodiment, the switch spare for press the button, set up in the fitting surface of dryer, the closing cap lock in the dryer, press the button to receive the pressure of closing cap is retracted, the regulating circuit disconnection.

According to the utility model discloses an embodiment, be equipped with the cavity groove in the lateral wall of dryer, the switch spare passes through the cable the cavity groove with regulating circuit connects.

According to the utility model discloses an embodiment, still including setting up the control on air conditioner casing, the closing cap rotates in order to open or close under the drive of control the dryer.

Further, in the above embodiment, the control element includes an electromagnet disposed on the air conditioner case and a magnet disposed at a free end of the cover, and the electromagnet is energized to generate a magnetic force to fasten the cover to the air duct.

Furthermore, in the above embodiment, the free end of the cover extends outwards to form a support platform, the inner wall of the support platform is provided with a buckle, and the magnet is disposed on the support platform and abuts against the buckle.

According to the utility model discloses an embodiment, the closing cap through the pivot set up in the outer peripheral face of dryer, the periphery cover of pivot is equipped with the return spring.

Further, in the above embodiment, the rotating shaft includes a positioning table, and the positioning table is clamped with the air duct.

Furthermore, in the above embodiment, the positioning table includes a first fixture block and a second fixture block, the air duct is provided with a first clamping position and a second clamping position, the first fixture block is connected with the first clamping position in an adaptive manner, the second fixture block is connected with the second clamping position in an adaptive manner, and the first fixture block and the second fixture block are connected in opposite directions.

According to an embodiment of the utility model, the dryer passes the air conditioner drain pan, and with the drain pan is fixed or can be dismantled and be connected.

According to the utility model discloses an embodiment, the inside of dryer is equipped with new trend fan.

The utility model also discloses a fresh air conditioning method of fresh air conditioner, including following step:

the fresh air system is started manually or automatically,

the sealing cover is opened, the regulating circuit is connected, the first valve and the second valve are opened, fresh air enters the air inlet side of the heat exchanger, the first regulating pipeline and the second regulating pipeline are opened, and a refrigerant respectively passes through the first flow path, the first regulating pipeline and the second regulating pipeline to realize mixed air heat exchange of the fresh air and indoor return air and is blown out indoors after heat exchange of the heat exchanger;

the fresh air system is manually or automatically closed,

the closing cap is closed, and the regulating circuit disconnection simultaneously, first valve and second valve disconnection, first regulating circuit and second regulating circuit disconnection, the refrigerant realizes the heat transfer to indoor return air via first flow path respectively to blow off to indoor through the heat exchanger heat transfer.

According to the technical scheme, the fresh air conditioner has the advantages and positive effects that: the first flow path is an integral path, the adjusting section is arranged between the inlet end and the outlet end, the second flow path is additionally arranged on the adjusting section of the first flow path, so that the first flow path is divided into two sections of strokes, the first adjusting pipeline passes through the front section of the first flow path, and the second adjusting pipeline utilizes the rear section of the first flow path. First regulation pipeline and second regulation pipeline have all shortened the flow length of refrigerant, because the flow is longer more, and the temperature of inside refrigerant is close to the temperature of heat exchanger windward side more, leads to heat transfer capacity not enough, can know from this and shorten the temperature and the heat transfer capacity that the heat transfer flow can effectively maintain the refrigerant, and the second regulation pipeline has still increased the flow path number moreover for the output quantity of refrigerant increases, the utility model discloses an increase the refrigerant flow, shorten the dual function of flow and improve heat exchange efficiency to the temperature influence that the addition of reply new trend leads to effectively improves heat transfer capacity and temperature regulation ability.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is a schematic structural diagram of an adjustable flow path according to a first embodiment.

Fig. 2 is a left side view of the adjustable flow path according to the second embodiment.

Fig. 3 is a schematic structural diagram of a fresh air conditioner according to the first embodiment.

Fig. 4 is a top view of a fresh air conditioner according to the first embodiment.

Fig. 5 is a side sectional view of a fresh air conditioner according to a first embodiment.

Fig. 6 is a schematic structural diagram of a fresh air system according to the fourth embodiment.

Fig. 7 is an exploded view of the fresh air system according to the fourth embodiment.

Fig. 8 is a schematic structural view of a rotating shaft according to the fourth embodiment.

Fig. 9 is a schematic structural view of a purification net according to the fourth embodiment.

Wherein the reference numerals are as follows:

the air conditioner comprises an air conditioner shell 100, a liquid inlet pipe 101, a gas collecting pipe 102, a heat exchanger 110, a fan 120, a fresh air system 200, an air duct 210, a sealing cover 220, a support platform 221, a buckle 222, an electromagnet 231, a magnet 232, a rotating shaft 240, a return spring 241, a first clamping block 242, a second clamping block 243, a purification net 250, a clamping block 260, a convex hull 251, an inlet end 311, an outlet end 312, an inlet pipe 321, an outlet pipe 322, a first valve 331, a second valve 332, a switch element 400 and a bottom shell 500.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In order to overcome the defect that the heat transfer capacity of the fresh air conditioner is not enough in the prior art, the utility model discloses an adjustable flow path and fresh air conditioner improve heat exchange efficiency, and the following embodiment through the difference explains.

Example one

As shown in fig. 1 and 2, the present invention discloses an adjustable flow path, which includes a liquid inlet pipe 101 and a gas collecting pipe 102, and includes a first flow path and a second flow path. The first flow path comprises an inlet 311 and an outlet 312, the inlet 311 is connected to the liquid inlet pipe 101, the outlet 312 is connected to the gas collecting pipe 102, and a regulating section is arranged between the first end and the second end. The second flow path is provided with an introducing pipe 321 and a discharging pipe 322, the introducing pipe 321 is communicated with the liquid inlet pipe 101 and the adjusting section, the discharging pipe 322 is communicated with the adjusting section and the gas collecting pipe 102, the refrigerant sequentially flows through the introducing end 311 and the discharging pipe 322 to form a first adjusting pipeline, and the refrigerant sequentially flows through the introducing pipe 321 and the discharging end 312 to form a second adjusting pipeline.

The utility model provides a technical scheme, first flow path are a whole route, and the regulation section sets up between introduction end 311 and discharge end 312, the utility model discloses set up the second flow path, the second flow path sets up on the regulation section of first flow path to fall into two sections strokes with first flow path, first regulation pipeline is the anterior segment flow through first flow path, and second regulation pipeline utilizes the back end flow of first flow path. First regulation pipeline and second regulation pipeline have all shortened the flow length of refrigerant, because the flow is longer more, and the temperature of inside refrigerant is close to the temperature of heat exchanger 110 windward side more, leads to heat transfer capacity not enough, can know from this and shorten the temperature and the heat transfer capacity that the heat transfer flow can effectively maintain the refrigerant, and the second regulation pipeline has still increased the flow path number moreover for the output quantity of refrigerant increases, the utility model discloses an increase the refrigerant flow, shorten the dual function of flow and improve heat exchange efficiency to the temperature influence that the addition of reply new trend leads to effectively improves heat transfer capacity and temperature regulation ability.

Specifically, the first flow path may adopt a common heat exchange structure of the existing heat exchanger 110, and the second flow path may be directly added on the basis of the existing structure. The adjusting section can be arranged at a half position of the flow of the first flow path, so that the heat exchange length and the heat exchange effect of the first adjusting pipeline and the second adjusting pipeline are consistent, and the operation and the monitoring are convenient. It is understood that the inlet pipe 321 and the outlet pipe 322 are sequentially disposed in a front-to-rear direction according to a flow direction of the refrigerant.

Further, in this embodiment, the first flow path is an S-coil, and the introduction pipe 321 and the discharge pipe 322 are straight pipes. The S-shaped coil pipe of the first flow path is of a main heat exchange structure, has a large heat exchange area, is compact in structure and small in occupied space, enables the heat exchange effect of the airflow to achieve a preset effect after the airflow passes through the S-shaped coil pipe, and can reduce the air speed of the airflow, so that the airflow reaches a proper air speed and then blows the airflow into a room.

In the first embodiment, the utility model also discloses a new trend air conditioner, including heat exchanger 110 and new trend system 200. The heat exchanger 110 includes the adjustable flow path of the foregoing structure. The fresh air system 200 includes an air duct 210, and an air outlet of the air duct 210 faces an upstream side of the heat exchange airflow of the heat exchanger 110.

According to the fresh air regulator, the fresh air is introduced by the fresh air system 200 through the indoor return air entering from the indoor return air inlet on the fresh air conditioner, then the fresh air and the indoor return air are subjected to heat exchange through the heat exchanger 110 together, and the heat exchange effect is improved by utilizing the adjustable flow path.

Or further, as shown in fig. 3 and 4, the air duct 210 passes through the air conditioning bottom case 500 and is fixedly or detachably connected to the bottom case 500. The air duct 210 is arranged on the bottom case 500, and is not installed from the side surface of the air conditioner casing 100, so that the occupied volume of the fresh air conditioner can be reduced, and the fresh air conditioner is suitable for various occasions and spaces.

Or further, a fresh air fan is arranged inside the air duct 210. An independent fresh air fan is arranged in the air duct 210, and the air pressure of the fresh air fan can be adjusted according to needs. Here the size of the air duct 210 matches the size of the fresh air fan. The inside of the wind barrel 210 can also be provided with no fan, and the fan 120 carried by the fresh air conditioner is directly utilized to form negative pressure so as to introduce fresh air.

Or further, as shown in fig. 6, 7 and 9, the outlet of the air duct 210 is provided with a detachable purification net 250. Purification net 250 is used for filtering the new trend, prevents that the dust from piling up in the inside formation of air conditioner and influencing the normal work of part. Specifically, a clamping groove is formed at the outlet of the air duct 210, a convex hull 251 is arranged on the periphery of the purification net 250, the purification net 250 slides into the air duct 210 along the axial direction of the air duct 210, and the convex hull 251 correspondingly abuts against the clamping groove. The purification net 250 can be made of flexible materials with deformability, so that the friction force between the purification net and the clamping groove is enhanced, and the impact of fresh air can be resisted.

Or further, as shown in fig. 3 and 6, the outer circumference of the air duct 210 is provided for a fixed or detachable connection with the air-conditioning case 100. The structure of the wind duct 210 can be fixed with the air conditioner casing 100 as required, and also as shown in the figure, the periphery of the wind duct 210 is provided with a fastener 260, which is convenient to form detachable connection with the air conditioner casing 100. When the cleaning is needed, only the bottom case 500 and the air duct 210 need to be detached, and the processing and the replacement are also convenient.

In addition, if the structure of the original number of the flow paths is kept unchanged, the rotating speed of the fan 120 (generally, a cross flow fan) in the fresh air conditioner can be directly utilized to change, the input quantity of the fresh air is adjusted, the temperature influence caused by introduction of the fresh air can be reduced to a lower level, and meanwhile, the indoor air quality is improved to some extent.

Example two

The embodiment is improved on the basis of the first embodiment, and the difference is that: as shown in fig. 2, a first valve 331 and a second valve 332 are added. A first valve 331 is provided at a connection point of the introduction pipe 321 and the liquid inlet pipe 101, and a second valve 332 is provided between the discharge pipe 322 and the gas collecting pipe 102. Specifically, the first valve 331 and the second valve 332 are used for opening or closing the second flow path, and are suitable for a working mode of introducing fresh air when being opened, improving the indoor air quality, and are suitable for a working mode of indoor air circulation heat exchange when being closed. Therefore, the opening and closing of the adjustable flow path can be controlled manually or automatically according to different working modes, so that the energy consumption of the heat exchanger 110 is matched with the working modes, the energy consumption is reduced, and the flexibility of adjustment and the applicability to the environment are improved.

The technical scheme of this embodiment has increased first valve 331 and the second valve 332 that adjust the second flow path and open or close, increases the flow path number of heat exchanger 110, satisfies the heat exchange efficiency of heat exchanger 110 when new trend system 200 opens, can also close at new trend system 200, when carrying out indoor circulation, close the second flow path, avoid the second flow path to be in operating condition always for the heat transfer of heat exchanger 110 is interference state, lead to the increase of energy consumption, improve the energy efficiency ratio of new trend air conditioner under different mode.

In the second embodiment, as shown in fig. 3 and 4, the utility model also provides a fresh air conditioner, including heat exchanger 110 and fresh air system 200. The heat exchanger 110 includes the adjustable flow path of the foregoing structure. The fresh air system 200 comprises an air duct 210 and a sealing cover 220 arranged at an inlet of the air duct 210, an air outlet of the air duct 210 faces an air inlet side of the heat exchanger 110, the air duct 210 is connected with a regulating circuit, the sealing cover 220 rotates to open or close the air duct 210, the sealing cover 220 rotates and drives the switch element 400 to act so as to switch on or off the regulating circuit, and the regulating circuit is electrically connected with the first valve 331 and the second valve 332.

This new trend air conditioner has set up regulating circuit on closing cap 220, utilizes the rotation action of closing cap 220 to realize controlling switch 400 to make regulating circuit switch-on or disconnection, thereby realize opening or closing of first regulation flow path and second regulation flow path, realize automated control, open the new trend mode, realize opening of adjustable flow path when the new trend is introduced, thereby improve the heat transfer effect.

Specifically, the first valve 331 and the second valve 332 are provided as electromagnetic valves capable of changing the open-closed state according to an electric signal.

Further, as shown in fig. 7, the switch 400 is a press button disposed on the mating surface of the air duct 210, the sealing cover 220 is fastened to the air duct 210, the press button is retracted by the pressure of the sealing cover 220, and the adjusting circuit is turned off. When the cover 220 is opened, the cover 220 is rotated around the rotation shaft 240, and the button mounted on the air duct 210 is disengaged, so that it is bounced, the adjustment circuit is completed, and the first valve 331 and the second valve 332 are opened. When the cover 220 is closed, the cover 220 rotates around the rotating shaft 240, and touches the press button mounted on the air duct 210, so that the press button is pressed down, the regulating circuit is disconnected, and the first valve 331 and the second valve 332 are closed. The adjusting circuit is started and disconnected by opening and closing the sealing cover 220, so that the fresh air flow, the adjusting circuit and the adjustable flow path are simultaneously opened, the linkage of working modes is realized, and the automation degree is improved.

Or further, a hollow groove is formed in the side wall of the air duct 210, and the switch 400 is connected to the adjusting circuit by a cable passing through the hollow groove. Because the regulating circuit needs the cable to realize the electricity and connects, utilize the cavity groove to realize holding to the cable, improve the protection to the cable, reduce the erosion that the dust is piled up and moisture.

EXAMPLE III

In the second embodiment, an improvement is made on the basis of the second embodiment, and the difference is that: as shown in fig. 7 and 8, the cover 220 is rotated by the control member to open or close the air duct 210. The control part is used for controlling the rotation of the sealing cover 220, so that an automatic structural basis is provided for the whole structure of the air conditioner, and automatic switching of different modes is realized.

Specifically, as shown in fig. 2, 6 and 7, the control element includes a magnet 232 disposed at the free end of the cover 220, and an electromagnet 231 disposed on the air conditioner casing 100, wherein the cover 220 is fastened to the air duct 210 by the magnetic force of the electromagnet 231. The control part is specifically set as a magnet or an electromagnet, when fresh air is not required to be introduced, the electromagnet 231 generates magnetic force by electrifying to keep the sealing cover 220 and the air cylinder 210 buckled, when the fresh air is required to be introduced, the electromagnet 231 is powered off, the sealing cover 220 loses the adsorption effect of the magnetic force and is opened under the gravity or the elasticity.

Further, a support platform 221 extends outwards from the free end of the cover 220, a buckle 222 is disposed on the inner wall of the support platform 221, and the magnet 232 is disposed on the support platform 221 and abuts against the buckle 222. The magnet 232 is disposed at the free end of the cover 220, and the support platform 221 and the latch 222 provide a receiving space for the magnet 232 and can be kept relatively fixed with the cover 220 to prevent the magnet 232 from falling off during the rotation of the cover 220. The snap 222 may be provided in one or more as needed for the purpose of securing the position of the magnet 232.

Example four

This embodiment can be improved on the basis of the first embodiment, the second embodiment or the third embodiment, as shown in fig. 7 and 8, except that the rotating shaft 240: the sealing cover 220 is disposed on the outer circumferential surface of the air duct 210 through a rotating shaft 240, and a return spring 241 is sleeved on the outer circumferential surface of the rotating shaft 240. The embodiment sets up pivot 240 as with dryer 210 detachable structure, the modularization production and processing of being convenient for, the installation and maintenance of being convenient for utilize return spring 241 to accelerate the opening speed of closing cap 220 moreover, improve the agility of closing cap 220.

Specifically, when this embodiment is used in conjunction with the third embodiment, the rotation of the cover 220 is achieved by the cooperation of the control member and the rotation shaft 240. For example, the electromagnet 231 is energized to generate magnetic force, the magnetic force overcomes the elastic force of the return spring 241, and the sealing cover 220 is buckled with the air duct 210; the electromagnet 231 is de-energized, the magnetic force disappears, and the cover 220 rotates to be separated from the cover 220 under the elastic force of the return spring 241. One end of the return spring 241 abuts against the cap 220, and the other end abuts against the rotating shaft 240.

Specifically, as shown in fig. 8, the shaft 240 includes a positioning table, and the positioning table is engaged with the air duct 210. The rotating shaft 240 is independently arranged, and in order to ensure the relative stability with the air duct 210 in the using process, the position of the rotating shaft 240 is limited by the positioning table.

Specifically, the positioning table includes a first latch 242 and a second latch 243, the air duct 210 is provided with a first latch and a second latch, the first latch 242 is in adaptive engagement with the first latch, the second latch 243 is in adaptive engagement with the second latch, and the engagement directions of the first latch 242 and the second latch 243 are opposite. The locating platform receives the limited effort of two directions, prevents effectively that pivot 240 from rocking along with the rotation production of closing cap 220 to keep closing cap 220 pivoted stable, after opening and shutting many times, still can with the accurate cooperation of dryer 210.

On the structure basis of the second embodiment, the third embodiment and the fourth embodiment, the utility model also discloses a fresh air conditioning method of fresh air conditioner, including following step:

the fresh air system 200 is turned on manually or automatically,

the sealing cover 220 is opened, the regulating circuit is connected, the first valve 331 and the second valve 332 are opened, fresh air enters the air inlet side of the heat exchanger 110, the first regulating pipeline and the second regulating pipeline are opened,

the fresh air and the indoor return air are mixed and are blown out indoors after heat exchange through the heat exchanger 110.

The fresh air adjusting method is suitable for various spaces such as factory buildings and shopping malls, or living rooms and bedrooms. When new trend is introduced, the adjusting circuit is switched on, the adjustable flow path enters a refrigerant, the heat exchange efficiency is improved, the indoor air outlet temperature is approximately the same as the preset air outlet temperature of the air conditioner, and the problem of low heat exchange efficiency of the new trend air conditioner is solved.

According to the technical scheme, the fresh air conditioner has the advantages and positive effects that: first flow path is a whole route, and the regulation section sets up between induction end 311 and discharge end 312, the utility model discloses having add the second flow path, the second flow path sets up on the regulation section of first flow path to divide into two sections strokes with first flow path, first regulation pipeline is the anterior segment flow through first flow path, and the second is adjusted the pipeline and is utilized the back end flow of first flow path. First regulation pipeline and second regulation pipeline have all shortened the flow length of refrigerant, because the flow is longer more, the temperature of inside refrigerant is close to the temperature of heat exchanger 110 windward side more, leads to heat transfer capacity not enough, can know from this and shorten the temperature and the heat transfer capacity that the heat transfer flow can effectively maintain the refrigerant, and the second regulation pipeline has still increased the flow path number moreover for the output quantity of refrigerant increases, promptly the utility model discloses an increase the refrigerant flow, shorten the dual function of flow and improve heat exchange efficiency to the temperature influence that the addition of reply new trend leads to effectively improves heat transfer capacity and temperature regulation ability.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is only exemplary of the invention, and is intended to enable those skilled in the art to understand and implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (15)

1. An adjustable flow path comprising an inlet pipe (101) and a collector pipe (102), characterized in that it comprises:

a first flow path comprising an inlet end (311) and an outlet end (312), wherein the inlet end (311) is connected with the liquid inlet pipe (101), the outlet end (312) is connected with the gas collecting pipe (102), and a regulating section is arranged between the inlet end (311) and the outlet end (312); and the number of the first and second groups,

the second flow path is provided with an introducing pipe (321) and a discharging pipe (322), the introducing pipe (321) is communicated with the liquid inlet pipe (101) and the adjusting section, and the discharging pipe (322) is communicated with the adjusting section and the gas collecting pipe (102);

the refrigerant sequentially flows through the inlet end (311) and the discharge pipe (322) to form a first adjusting pipeline, and the refrigerant sequentially flows through the inlet pipe (321) and the discharge end (312) to form a second adjusting pipeline.

2. The adjustable flow path according to claim 1, characterized in that the connection of the inlet pipe (321) to the inlet pipe (101) is provided with a first valve (331) and that between the outlet pipe (322) and the header pipe (102) is provided a second valve (332).

3. The adjustable flow path of claim 1, wherein the first flow path is an S-coil, and the inlet tube (321) and the outlet tube (322) are straight tubes.

4. A fresh air conditioner is characterized by comprising:

a heat exchanger (110) comprising the adjustable flow path of claim 1 or 3; and the number of the first and second groups,

the fresh air system (200) comprises an air duct (210), and an air outlet of the air duct (210) faces to the upstream side of the heat exchange airflow of the heat exchanger (110).

5. A fresh air conditioner is characterized by comprising:

a heat exchanger (110) comprising the adjustable flow path of claim 2;

the fresh air system (200) comprises an air duct (210) and a sealing cover (220) arranged at the inlet of the air duct (210), the air outlet of the air duct (210) faces the air inlet side of the heat exchanger (110), and,

a regulating system comprising a switching element (400) disposed on the air duct (210), the switching element (400) being connected to a regulating circuit, the regulating circuit being electrically connected to the first valve (331) and the second valve (332);

the cover (220) rotates to open or close the air duct (210), and the cover (220) rotates to drive the switch member (400) to act, so that the regulating circuit is switched on or off.

6. The fresh air conditioner according to claim 5, wherein the switch member (400) is a press button disposed on a mating surface of the air duct (210), the cover (220) is fastened to the air duct (210), the press button is retracted by the pressure of the cover (220), and the adjusting circuit is turned off.

7. The fresh air conditioner as claimed in claim 5, wherein a hollow slot is provided in the side wall of the air duct (210), and the switch member (400) is connected to the regulating circuit by a cable passing through the hollow slot.

8. The fresh air conditioner as claimed in claim 5, further comprising a control member disposed on the air conditioner casing (100), wherein the cover (220) is driven by the control member to rotate to open or close the air duct (210).

9. The fresh air conditioner according to claim 8, wherein the control element comprises an electromagnet (231) disposed on the air conditioner casing (100) and a magnet (232) at the free end of the cover (220), the electromagnet (231) is energized to generate a magnetic force to snap the cover (220) to the air duct (210).

10. The fresh air conditioner according to claim 9, wherein a support platform (221) extends outwards from the free end of the cover (220), a buckle (222) is arranged on the inner wall of the support platform (221), and the magnet (232) is arranged on the support platform (221) and abuts against the buckle (222).

11. The fresh air conditioner according to claim 5, wherein the cover (220) is disposed on the outer circumferential surface of the air duct (210) through a rotating shaft (240), and a return spring (241) is sleeved on the outer circumferential surface of the rotating shaft (240).

12. The fresh air conditioner according to claim 11, wherein the rotating shaft (240) comprises a positioning table, and the positioning table is clamped with the air duct (210).

13. The fresh air conditioner according to claim 12, wherein the positioning table comprises a first clamping block (242) and a second clamping block (243), the air duct (210) is provided with a first clamping position and a second clamping position, the first clamping block (242) is in adaptive clamping connection with the first clamping position, the second clamping block (243) is in adaptive clamping connection with the second clamping position, and the clamping directions of the first clamping block (242) and the second clamping block (243) are opposite.

14. The fresh air conditioner as claimed in claim 4 or 5, wherein the air duct (210) passes through a bottom casing (500) of the air conditioner and is fixedly or detachably connected with the bottom casing (500).

15. The fresh air conditioner as claimed in claim 4 or 5, wherein a fresh air blower is provided inside the air duct (210).

Images