Adjustable flow path and fresh air air conditioner

Abstract

Relating to the field of air conditioning technology, the present application discloses an adjustable flow path and a fresh air air conditioner, the adjustable flow path includes a liquid inlet pipe and an air collecting pipe and a first flow path and a second flow path, the first flow path includes an inlet end and a discharge end, the inlet end is connected to the liquid inlet pipe, the discharge end is connected to the air collecting pipe, and an adjustment section is provided between the inlet end and the discharge end; the second flow path is provided with an inlet pipe and a discharge pipe, the inlet pipe connects the liquid inlet pipe and the adjustment section, and the discharge pipe connects the adjustment section and the air collecting pipe; the refrigerant flows through the inlet end and the discharge pipe in sequence to form a first adjustment pipeline, and the refrigerant flows through the inlet pipe and the discharge end in sequence to form a second adjustment pipeline. In the present invention, the first flow path is an integral passage, and a second flow path is added, and the second flow path is arranged in the adjustment section of the first flow path, thereby dividing the first flow path into two sections, and the heat exchange efficiency is improved by the dual effects of increasing the refrigerant flow rate and shortening the process, thereby coping with the temperature influence caused by the addition of fresh air, and effectively improving the heat exchange capacity and temperature regulation capacity.

Description

Technical Field

[0001] The present application generally relates to an air conditioner, and more specifically, to an adjustable flow path, a fresh air air conditioner and a fresh air adjustment method. Background Art

[0002] Most of the split wall-mounted air conditioner indoor units on the market do not have the fresh air function. Some air conditioners have added the fresh air function, mainly by adding an independent air duct system and adding fans and blowers in the air duct to drive the air intake.

[0003] When the air conditioner is cooling in summer, if the fresh air system is turned on, the inlet air temperature will be high, and the heat exchanger will remain in the original state, which will cause insufficient cooling of the inlet air, resulting in a relatively high outlet air temperature, causing the indoor ambient temperature to be relatively high, and the air conditioner cannot achieve the purpose of cooling. The same is true when heating, and the actual warming effect cannot be achieved. Therefore, using the original heat exchanger structure to handle fresh air will cause insufficient heat exchange and insufficient heat exchange capacity, resulting in a high outlet air temperature, which cannot achieve the cooling effect and reduces comfort.

[0004] In view of this, there is an urgent need to improve the structure of the existing fresh air air conditioner to enhance the heat exchange capacity. Summary of the invention

[0005] A main purpose of the present application is to overcome the defects of the above-mentioned prior art and provide an adjustable flow path, including a liquid inlet pipe and a gas collecting pipe, including;

[0006] A first flow path includes an inlet end and a discharge end, wherein the inlet end is connected to the liquid inlet pipe, the discharge end is connected to the gas collecting pipe, and a regulating section is provided between the inlet end and the discharge end; and

[0007] A second flow path is provided with an inlet pipe and a discharge pipe, wherein the inlet pipe is connected with the liquid inlet pipe and the regulating section, and the discharge pipe is connected with the regulating section and the gas collecting pipe;

[0008] The refrigerant flows through the inlet end and the discharge pipe in sequence to form a first regulating pipeline, and the refrigerant flows through the inlet pipe and the discharge end in sequence to form a second regulating pipeline.

[0009] According to an embodiment of the present invention, a first valve is provided at the connection between the inlet pipe and the liquid inlet pipe, and a second valve is provided between the outlet pipe and the gas collecting pipe.

[0010] According to an embodiment of the present invention, the first flow path is an S-shaped coil, and the inlet pipe and the outlet pipe are straight pipes.

[0011] The present invention also discloses a fresh air air conditioner, comprising:

[0012] A heat exchanger comprising an adjustable flow path of the above structure; and

[0013] The fresh air system comprises an air duct, wherein the air outlet of the air duct faces the upstream side of the heat exchange airflow of the heat exchanger.

[0014] The present invention also discloses a fresh air air conditioner, comprising:

[0015] A heat exchanger including an adjustable flow path of the above structure;

[0016] A fresh air system comprises an air duct and a cover arranged at the inlet of the air duct, wherein the air outlet of the air duct faces the air inlet side of the heat exchanger, and

[0017] A regulating system, comprising a switch element disposed on the air cylinder, the switch element being connected to a regulating circuit, and the regulating circuit being electrically connected to the first valve and the second valve;

[0018] The cover rotates to open or close the wind tube, and the cover rotates to drive the switch element to operate so that the regulating circuit is connected or disconnected.

[0019] According to an embodiment of the present invention, the switch member is a push button disposed on the mating surface of the hair dryer, the cover is buckled on the hair dryer, the push button retracts due to the pressure of the cover, and the regulating circuit is disconnected.

[0020] According to an embodiment of the present invention, a hollow groove is provided in the side wall of the air duct, and the switch element is connected to the regulating circuit through a cable passing through the hollow groove.

[0021] According to an embodiment of the present invention, the air conditioner further comprises a control member disposed on the air conditioner casing, and the cover is driven by the control member to rotate to open or close the air cylinder.

[0022] Furthermore, in the above embodiment, the control component includes an electromagnet disposed on the air conditioner casing and a magnet at the free end of the cover, and the electromagnet generates magnetic force when energized to make the cover buckle with the air duct.

[0023] Furthermore, in the above embodiment, a support platform is provided on the free end of the cover extending outward, a buckle is provided on the inner wall of the support platform, and the magnet is placed on the support platform and abuts against the buckle.

[0024] According to an embodiment of the present invention, the sealing cover is arranged on the outer circumferential surface of the wind tube via a rotating shaft, and a return spring is sleeved on the outer circumference of the rotating shaft.

[0025] Furthermore, in the above embodiment, the rotating shaft includes a positioning platform, and the positioning platform is clamped with the wind cylinder.

[0026] Furthermore, in the above embodiment, the positioning platform includes a first clamping block and a second clamping block, the air duct is provided with a first clamping position and a second clamping position, the first clamping block is adapted to be clamped with the first clamping position, the second clamping block is adapted to be clamped with the second clamping position, and the clamping directions of the first clamping block and the second clamping block are opposite.

[0027] According to an embodiment of the present invention, the air duct passes through the bottom shell of the air conditioner and is fixedly or detachably connected to the bottom shell.

[0028] According to an embodiment of the present invention, a fresh air blower is provided inside the air duct.

[0029] The present invention also discloses a fresh air regulating method of a fresh air air conditioner, comprising the following steps:

[0030] Manually or automatically start the fresh air system.

[0031] The cover is opened, and the regulating circuit is connected at the same time, the first valve and the second valve are opened, and the fresh air enters the air inlet side of the heat exchanger. At the same time, the first regulating pipeline and the second regulating pipeline are opened, and the refrigerant passes through the first flow path, the first regulating pipeline and the second regulating pipeline respectively to realize heat exchange of the mixed air of the fresh air and the indoor return air, and is blown into the room after heat exchange through the heat exchanger;

[0032] Manually or automatically shut down the fresh air system.

[0033] The cover is closed, and at the same time the regulating circuit is disconnected, the first valve and the second valve are disconnected, the first regulating pipeline and the second regulating pipeline are disconnected, and the refrigerant realizes heat exchange with the indoor return air through the first flow path, and is blown into the room after heat exchange through the heat exchanger.

[0034] It can be seen from the above technical scheme that the advantages and positive effects of the fresh air air conditioner of the present application are: the first flow path is an integral passage, the regulating section is arranged between the inlet end and the discharge end, and a second flow path is added, and the second flow path is arranged on the regulating section of the first flow path, thereby dividing the first flow path into two sections, the first regulating pipeline is the front section of the first flow path, and the second regulating pipeline uses the rear section of the first flow path. Both the first regulating pipeline and the second regulating pipeline shorten the flow length of the refrigerant, because the longer the flow path, the closer the temperature of the internal refrigerant is to the temperature of the windward surface of the heat exchanger, resulting in insufficient heat exchange capacity. It can be seen that shortening the heat exchange process can effectively maintain the temperature and heat exchange capacity of the refrigerant, and the second regulating pipeline also increases the number of flow paths, so that the output of the refrigerant increases. The present invention improves the heat exchange efficiency by the dual effects of increasing the refrigerant flow and shortening the process, thereby coping with the temperature influence caused by the addition of fresh air, and effectively improving the heat exchange capacity and temperature regulation capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] 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.

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0037] Figure 1 It is a schematic diagram of the structure of the adjustable flow path according to the first embodiment.

[0038] Figure 2 It is a left side view of the adjustable flow path according to the second embodiment.

[0039] Figure 3 It is a structural schematic diagram of a fresh air air conditioner according to the first embodiment.

[0040] Figure 4 It is a top view of the fresh air air conditioner according to the first embodiment.

[0041] Figure 5 It is a side cross-sectional view of the fresh air air conditioner according to the first embodiment.

[0042] Figure 6 It is a structural schematic diagram of a fresh air system according to the fourth embodiment.

[0043] Figure 7 It is a structural decomposition diagram of the fresh air system according to the fourth embodiment.

[0044] Figure 8 It is a schematic structural diagram of the rotating shaft according to the fourth embodiment.

[0045] Fig. 9 It is a schematic structural diagram of a purification net according to the fourth embodiment.

[0046] The reference numerals are described as follows:

[0047] Air conditioning casing 100, liquid inlet pipe 101, air collecting pipe 102, heat exchanger 110, fan 120, fresh air system 200, air cylinder 210, cover 220, support platform 221, buckle 222, electromagnet 231, magnet 232, rotating shaft 240, return spring 241, first block 242, second block 243, purification net 250, clamping part 260, convex bump 251, introduction end 311, discharge end 312, introduction pipe 321, discharge pipe 322, first valve 331, second valve 332, switch member 400, bottom casing 500. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0049] In order to overcome the defect of insufficient heat exchange capacity of fresh air air conditioners in the prior art, the present invention discloses an adjustable flow path, a fresh air air conditioner and a fresh air regulation method to improve the heat exchange efficiency, which is explained below through different embodiments.

[0050] Embodiment 1

[0051] like Figure 1 and Figure 2 As shown, the present invention discloses an adjustable flow path, which includes a liquid inlet pipe 101 and a gas collecting pipe 102, including a first flow path and a second flow path. The first flow path includes an introduction end 311 and a discharge end 312, the introduction end 311 is connected to the liquid inlet pipe 101, the discharge end 312 is connected to the gas collecting pipe 102, and an adjustment section is provided between the first end and the second end. The second flow path is provided with an introduction pipe 321 and a discharge pipe 322, the introduction pipe 321 connects the liquid inlet pipe 101 and the adjustment section, the discharge pipe 322 connects the adjustment section and the gas collecting pipe 102, the refrigerant flows through the introduction end 311 and the discharge pipe 322 in sequence to form a first adjustment pipeline, and the refrigerant flows through the introduction pipe 321 and the discharge end 312 in sequence to form a second adjustment pipeline.

[0052] The technical solution provided by the present invention is that the first flow path is an integral passage, and the regulating section is arranged between the inlet end 311 and the outlet end 312. The present invention adds a second flow path, and the second flow path is arranged on the regulating section of the first flow path, thereby dividing the first flow path into two sections. The first regulating pipeline is the front section process of the first flow path, and the second regulating pipeline uses the rear section process of the first flow path. Both the first regulating pipeline and the second regulating pipeline shorten the flow length of the refrigerant, because the longer the process, the closer the temperature of the internal refrigerant is to the temperature of the windward surface of the heat exchanger 110, resulting in insufficient heat exchange capacity. It can be seen that shortening the heat exchange process can effectively maintain the temperature and heat exchange capacity of the refrigerant, and the second regulating pipeline also increases the number of flow paths, so that the output of the refrigerant increases. The present invention improves the heat exchange efficiency by the dual effects of increasing the refrigerant flow and shortening the process, thereby coping with the temperature influence caused by the addition of fresh air, and effectively improving the heat exchange capacity and temperature regulation capacity.

[0053] Specifically, the first flow path can adopt the common heat exchange structure of the existing heat exchanger 110, and the second flow path can be directly added on the basis of the existing structure. The regulating section can be set at the half position of the process of the first flow path, so that the heat exchange length and heat exchange effect of the first regulating pipeline and the second regulating pipeline are relatively consistent, which is convenient for operation and monitoring. It can be understood that the inlet pipe 321 and the outlet pipe 322 should be arranged in sequence in front and behind according to the flow direction of the refrigerant.

[0054] Furthermore, in this embodiment, the first flow path is an S-shaped coil, and the inlet pipe 321 and the outlet pipe 322 are straight pipes. The S-shaped coil of the first flow path is the main heat exchange structure, which has a large heat exchange area, a compact structure, and occupies a small space, so that after the airflow passes through, the heat exchange effect of the airflow reaches the predetermined effect, and the wind speed of the airflow can be reduced, so that the airflow reaches a suitable wind speed before blowing into the room.

[0055] In the first embodiment, the present invention further discloses a fresh air air conditioner, including a heat exchanger 110 and a fresh air system 200. The heat exchanger 110 includes an adjustable flow path of the aforementioned structure. The fresh air system 200 includes an air duct 210, the air outlet of which faces the upstream side of the heat exchange airflow of the heat exchanger 110.

[0056] The fresh air conditioner uses the fresh air system 200 to introduce fresh air into the indoor return air outlet of the fresh air air conditioner, and then the fresh air and the indoor return air are passed through the heat exchanger 110 for heat exchange, and the adjustable flow path is used to improve the heat exchange effect.

[0057] Or further, if Figure 3 and Figure 4 As shown, the air duct 210 passes through the air conditioner 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 instead of being installed from the side of the air conditioner casing 100, which can reduce the occupied volume of the fresh air air conditioner and is suitable for various occasions and spaces.

[0058] Alternatively, a fresh air fan is provided inside the air duct 210. An independent fresh air fan is provided inside the air duct 210, and the wind pressure of the fresh air fan can be adjusted as needed. Here, the size of the air duct 210 matches the size of the fresh air fan. The air duct 210 may also not be provided with a fan, and the fan 120 provided by the fresh air air conditioner may be directly used to form a negative pressure to introduce fresh air.

[0059] Or further, if Figure 6 , Figure 7 and Fig. 9As shown, the outlet of the air duct 210 is provided with a detachable purification net 250. The purification net 250 is used to filter the fresh air to prevent dust from accumulating inside the air conditioner and affecting the normal operation of the components. Specifically, the outlet of the air duct 210 is provided with a slot, and the outer periphery of the purification net 250 is provided with a convex bump 251. The purification net 250 slides into the air duct 210 along the axial direction of the air duct 210, and the convex bump 251 correspondingly contacts the slot. The purification net 250 can be made of a flexible material with deformation ability to enhance the friction with the slot and resist the impact of the fresh air.

[0060] Or further, if Figure 3 and Figure 6 As shown, the outer periphery of the air duct 210 is provided with a fixed or detachable connection with the air conditioner casing 100. The structure of the air duct 210 can be fixed with the air conditioner casing 100 as needed, or as shown in the figure, a clamp 260 is provided on the outer periphery of the air duct 210 to facilitate detachable connection with the air conditioner casing 100. When cleaning is required, only the bottom shell 500 and the air duct 210 need to be disassembled, which is also convenient for processing and replacement.

[0061] In addition, if the structure of the original flow path number is kept unchanged, the fan 120 (generally a cross-flow fan) inside the fresh air air conditioner can be directly used to change the rotation speed and adjust the input amount of fresh air. This can reduce the temperature impact caused by the introduction of fresh air to a lower level and improve the indoor air quality.

[0062] Embodiment 2

[0063] This embodiment is improved on the basis of the first embodiment. The difference is that: Figure 2 As shown, a first valve 331 and a second valve 332 are added. The first valve 331 is provided at the connection between the inlet pipe 321 and the liquid inlet pipe 101, and the second valve 332 is provided between the outlet pipe 322 and the gas collecting pipe 102. Specifically, the first valve 331 and the second valve 332 are used to open or close the second flow path. When opened, the working mode of introducing fresh air is applicable to improve the indoor air quality, and when closed, the working mode of indoor air circulation heat exchange is applicable. Therefore, the opening and closing of the adjustable flow path can be controlled manually and automatically according to different working modes, so that the energy consumption of the heat exchanger 110 matches the working mode, reducing energy loss, and improving the flexibility of adjustment and the adaptability to the environment.

[0064] The technical solution of this embodiment adds a first valve 331 and a second valve 332 for adjusting the opening or closing of the second flow path, increases the number of flow paths of the heat exchanger 110, and meets the heat exchange efficiency of the heat exchanger 110 when the fresh air system 200 is turned on. When the fresh air system 200 is turned off and indoor circulation is performed, the second flow path can be closed to avoid the second flow path being in a working state all the time, causing the heat exchange of the heat exchanger 110 to be in an excess state, resulting in an increase in energy consumption, thereby improving the energy efficiency ratio of the fresh air air conditioner in different working modes.

[0065] In the second embodiment, Figure 3 and Figure 4 As shown, the present invention also provides a fresh air air conditioner, including a heat exchanger 110 and a fresh air system 200. The heat exchanger 110 includes an adjustable flow path of the aforementioned structure. The fresh air system 200 includes a wind tube 210 and a cover 220 arranged at the inlet of the wind tube 210, the air outlet of the wind tube 210 faces the air inlet side of the heat exchanger 110, the wind tube 210 is connected to the regulating circuit, the cover 220 rotates to open or close the wind tube 210, and the cover 220 rotates and drives the switch 400 to operate, so that the regulating circuit is turned on or off, and the regulating circuit is electrically connected to the first valve 331 and the second valve 332.

[0066] The fresh air air conditioner is provided with a regulating circuit on the cover 220, and the switch member 400 is controlled by the rotation of the cover 220, so that the regulating circuit is connected or disconnected, thereby realizing the opening or closing of the first regulating flow path and the second regulating flow path, realizing automatic control, turning on the fresh air mode, and realizing the opening of the adjustable flow path while introducing fresh air, thereby improving the heat exchange effect.

[0067] Specifically, the first valve 331 and the second valve 332 are configured as solenoid valves, which can change the open and close states according to electrical signals.

[0068] Furthermore, if Figure 7 As shown, the switch member 400 is a push button, which is arranged on the mating surface of the wind tube 210. The cover 220 is buckled on the wind tube 210. The push button is retracted by the pressure of the cover 220, and the regulating circuit is disconnected. When the cover 220 is opened, when the cover 220 rotates around the rotating shaft 240, it will be separated from the push button installed on the wind tube 210, causing it to bounce up, so that the regulating circuit is connected, and the first valve 331 and the second valve 332 are opened. When the cover 220 is closed, when the cover 220 rotates around the rotating shaft 240, it will touch the push button installed on the wind tube 210, causing it to be pressed down, so that the regulating circuit is disconnected, and the first valve 331 and the second valve 332 are closed. The opening and closing of the cover 220 is used to start and disconnect the regulating circuit, so that the fresh air flow, the regulating circuit and the adjustable flow path are opened at the same time, realizing the linkage of the working mode and improving the degree of automation.

[0069] Alternatively, a hollow groove is provided in the side wall of the air duct 210, and the switch 400 is connected to the regulating circuit through a cable passing through the hollow groove. Since the regulating circuit requires a cable to achieve electrical connection, the hollow groove is used to accommodate the cable, thereby improving the protection of the cable and reducing dust accumulation and moisture erosion.

[0070] Embodiment 3

[0071] In the second embodiment, improvements are made on the basis of the second embodiment, the difference is that: Figure 7 and Figure 8 As shown, the cover 220 rotates under the drive of the control member to open or close the air duct 210. Using the control member to control the rotation of the cover 220 is conducive to providing an automated structural basis for the overall structure of the air conditioner and realizing automatic switching of different modes.

[0072] Specifically, Figure 2 , Figure 6 and Figure 7 As shown, the control member includes a magnet 232 disposed at the free end of the cover 220 and an electromagnet 231 disposed on the air conditioner housing 100. The magnetic force of the electromagnet 231 causes the cover 220 to be buckled with the air duct 210. The control member is specifically configured as a magnet or an electromagnet. When fresh air does not need to be introduced, the electromagnet 231 is powered on to generate a magnetic force to keep the cover 220 and the air duct 210 buckled. When fresh air needs to be introduced, the electromagnet 231 is powered off, the cover 220 loses the magnetic adsorption effect, and opens under gravity or elastic force.

[0073] Furthermore, a support platform 221 is extended outward from the free end of the cover 220, a buckle 222 is provided on the inner wall of the support platform 221, and a magnet 232 is placed on the support platform 221 and abuts against the buckle 222. The magnet 232 is placed at the free end of the cover 220, and the support platform 221 and the buckle 222 provide a space for accommodating the magnet 232, and can be relatively fixed with the cover 220 to prevent the magnet 232 from falling off during the rotation of the cover 220. The buckle 222 can be provided as one or more as needed to ensure that the position of the magnet 232 is stable.

[0074] Embodiment 4

[0075] This embodiment can be improved on the basis of the first embodiment, the second embodiment or the third embodiment, such as Figure 7 and Figure 8 As shown, the difference lies in the rotating shaft 240: the cover 220 is arranged on the outer circumference of the wind tube 210 through the rotating shaft 240, and the outer circumference of the rotating shaft 240 is sleeved with a return spring 241. In this embodiment, the rotating shaft 240 is arranged as a detachable structure from the wind tube 210, which is convenient for modular production and processing, installation and maintenance, and the return spring 241 is used to accelerate the opening speed of the cover 220 and improve the agility of the cover 220.

[0076] Specifically, when this embodiment is used in conjunction with the third embodiment, the rotation of the cover 220 is achieved through the cooperation of the control member and the rotating shaft 240. For example, the electromagnet 231 is powered on to generate magnetic force, which overcomes the elastic force of the return spring 241, and the cover 220 is engaged with the wind tube 210; when the electromagnet 231 is powered off, the magnetic force disappears, and under the elastic force of the return spring 241, the cover 220 rotates and separates from the cover 220. One end of the return spring 241 abuts against the cover 220, and the other end abuts against the rotating shaft 240.

[0077] Specifically, Figure 8 As shown, the rotating shaft 240 includes a positioning platform, and the positioning platform is engaged with the wind tube 210. The rotating shaft 240 is independently arranged, and in order to ensure relative stability with the wind tube 210 during use, the positioning platform is used to define the position of the rotating shaft 240.

[0078] Specifically, the positioning platform includes a first clamping block 242 and a second clamping block 243. The first clamping position and the second clamping position are provided on the air duct 210. The first clamping block 242 is adapted to be clamped with the first clamping position, and the second clamping block 243 is adapted to be clamped with the second clamping position. The clamping directions of the first clamping block 242 and the second clamping block 243 are opposite. The positioning platform is subjected to limiting forces in two directions, which effectively prevents the rotating shaft 240 from shaking with the rotation of the cover 220, thereby maintaining the stability of the rotation of the cover 220, and can still accurately match with the air duct 210 after multiple openings and closings.

[0079] Based on the structures of the above-mentioned Embodiment 2, Embodiment 3 and Embodiment 4, the present invention further discloses a fresh air regulating method of a fresh air air conditioner, comprising the following steps:

[0080] Manually or automatically start the fresh air system 200,

[0081] The cover 220 is opened, and the regulating circuit is connected, the first valve 331 and the second valve 332 are opened, and the fresh air enters the air inlet side of the heat exchanger 110, and the first regulating pipeline and the second regulating pipeline are opened.

[0082] The fresh air is mixed with the indoor return air, and is blown into the room after being heated by the heat exchanger 110.

[0083] The fresh air adjustment method is applicable to various spaces such as factories, shopping malls, or living rooms and bedrooms. When fresh air is introduced, the adjustment circuit is connected, and the adjustable flow path enters the refrigerant to improve the heat exchange efficiency, so that the indoor air outlet temperature is roughly the same as the preset air outlet temperature of the air conditioner, solving the problem of low heat exchange efficiency of the fresh air air conditioner.

[0084] It can be seen from the above technical scheme that the advantages and positive effects of the fresh air air conditioner of the present application are: the first flow path is an integral passage, the regulating section is arranged between the introduction end 311 and the discharge end 312, the present invention adds a second flow path, the second flow path is arranged on the regulating section of the first flow path, thereby dividing the first flow path into two sections, the first regulating pipeline is the front section process of the first flow path, and the second regulating pipeline uses the rear section process of the first flow path. The first regulating pipeline and the second regulating pipeline both shorten the flow length of the refrigerant, because the longer the process, the closer the temperature of the internal refrigerant is to the temperature of the windward surface of the heat exchanger 110, resulting in insufficient heat exchange capacity. It can be seen that shortening the heat exchange process can effectively maintain the temperature and heat exchange capacity of the refrigerant, and the second regulating pipeline also increases the number of flow paths, so that the output of the refrigerant increases, that is, the present invention improves the heat exchange efficiency by the dual effects of increasing the refrigerant flow and shortening the process, thereby coping with the temperature influence caused by the addition of fresh air, and effectively improving the heat exchange capacity and temperature regulation capacity.

[0085] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0086] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. An adjustable flow path, comprising a liquid inlet pipe (101) and a gas collecting pipe (102), characterized in that: include: A first flow path comprises an inlet end (311) and a discharge end (312), wherein the inlet end (311) is connected to the liquid inlet pipe (101), the discharge end (312) is connected to the gas collecting pipe (102), and an adjusting section is provided between the inlet end (311) and the discharge end (312); and, A second flow path is provided with an inlet pipe (321) and a discharge pipe (322), wherein the inlet pipe (321) is connected to the liquid inlet pipe (101) and the regulating section, and the discharge pipe (322) is connected to the regulating section and the gas collecting pipe (102); The refrigerant flows through the inlet end (311) and the outlet pipe (322) in sequence to form a first regulating pipeline, and the refrigerant flows through the inlet pipe (321) and the outlet end (312) in sequence to form a second regulating pipeline; The first flow path is an S-shaped coil, and the inlet pipe (321) and the outlet pipe (322) are straight pipes.

2. The adjustable flow path according to claim 1, characterized in that: A first valve (331) is provided at the connection between the inlet pipe (321) and the liquid inlet pipe (101), and a second valve (332) is provided between the outlet pipe (322) and the gas collecting pipe (102).

3. A fresh air air conditioner, characterized in that: include: A heat exchanger (110) comprising the adjustable flow path as claimed in claim 1; as well as, The fresh air system (200) comprises an air duct (210), wherein an air outlet of the air duct (210) faces the upstream side of the heat exchange airflow of the heat exchanger (110).

4. A fresh air air conditioner, characterized in that: include: A heat exchanger (110) comprising the adjustable flow path as claimed in claim 2; A fresh air system (200) comprises an air duct (210) and a cover (220) arranged at the inlet of the air duct (210), wherein the air outlet of the air duct (210) faces the air inlet side of the heat exchanger (110), and, A regulating system, comprising a switch component (400) disposed on the air cylinder (210), wherein the switch component (400) is connected to a regulating circuit, and the regulating circuit is electrically connected to the first valve (331) and the second valve (332); The cover (220) rotates to open or close the wind tube (210), and the cover (220) rotates to drive the switch element (400) to operate so as to connect or disconnect the regulating circuit.

5. The fresh air air conditioner according to claim 4, characterized in that: The switch member (400) is a push button, which is arranged on the mating surface of the wind tube (210). The cover (220) is buckled on the wind tube (210). The push button retracts under the pressure of the cover (220), and the regulating circuit is disconnected.

6. The fresh air air conditioner according to claim 4, characterized in that: A hollow groove is provided in the side wall of the wind tube (210), and the switch element (400) is connected to the regulating circuit via a cable passing through the hollow groove.

7. The fresh air air conditioner according to claim 4, characterized in that: It also includes a control member arranged on the air conditioner casing (100), and the cover (220) is driven by the control member to rotate to open or close the air cylinder (210).

8. The fresh air air conditioner according to claim 7, characterized in that: The control component comprises an electromagnet (231) arranged on the air conditioner casing (100) and a magnet (232) at the free end of the cover (220); the electromagnet (231) generates magnetic force when energized so that the cover (220) is buckled onto the air cylinder (210).

9. The fresh air air conditioner according to claim 8, characterized in that: A support platform (221) is provided at the free end of the sealing cover (220) extending outwards, a buckle (222) is provided on the inner wall of the support platform (221), and the magnet (232) is placed on the support platform (221) and abuts against the buckle (222).

10. The fresh air air conditioner according to claim 4, characterized in that: The sealing cover (220) is arranged on the outer peripheral surface of the wind tube (210) via a rotating shaft (240), and a return spring (241) is sleeved on the outer periphery of the rotating shaft (240).

11. The fresh air air conditioner according to claim 10, characterized in that: The rotating shaft (240) comprises a positioning platform, and the positioning platform is clamped with the wind tube (210).

12. The fresh air air conditioner according to claim 11, characterized in that: The positioning platform comprises a first clamping block (242) and a second clamping block (243); the air cylinder (210) is provided with a first clamping position and a second clamping position; the first clamping block (242) is adapted to be clamped with the first clamping position; the second clamping block (243) is adapted to be clamped with the second clamping position; and the clamping directions of the first clamping block (242) and the second clamping block (243) are opposite.

13. The fresh air air conditioner according to claim 3 or 4, characterized in that: The air duct (210) passes through the bottom shell (500) of the air conditioner and is fixedly or detachably connected to the bottom shell (500).

14. The fresh air air conditioner according to claim 3 or 4, characterized in that: A fresh air blower is provided inside the air duct (210).

15. A method for regulating fresh air of a fresh air air conditioner, using the fresh air air conditioner according to any one of claims 4 to 12, characterized in that: The following steps are involved: Manually or automatically start the fresh air system (200), The cover (220) is opened, and the regulating circuit is connected, the first valve (331) and the second valve (332) are opened, and fresh air enters the air inlet side of the heat exchanger (110). At the same time, the first regulating pipeline and the second regulating pipeline are opened, and the refrigerant passes through the first flow path, the first regulating pipeline, and the second regulating pipeline respectively to achieve heat exchange of the mixed air of the fresh air and the indoor return air, and is blown into the room after heat exchange through the heat exchanger (110); Manually or automatically shut down the fresh air system (200), The cover (220) is closed, and at the same time the regulating circuit is disconnected, the first valve (331) and the second valve (332) are disconnected, the first regulating pipeline and the second regulating pipeline are disconnected, and the refrigerant exchanges heat with the indoor return air through the first flow path, and is blown into the room after heat exchange through the heat exchanger (110).

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