Air conditioner

Abstract

The invention discloses an air conditioner which comprises a compressor, an outdoor heat exchanger, an indoor heat exchanger, a throttling element and a four-way valve. When the air conditioner operates in a refrigeration mode, the throttling elements are communicated with the corresponding heat exchange branches through the first switching flow dividing holes, the four-way valves are communicated with the corresponding heat exchange branches through the second switching flow dividing holes, and therefore the heat exchange branches are connected in parallel. When the air conditioner operates in a heating mode, the throttling element and the corresponding heat exchange branches are disconnected through the first switching flow dividing holes, every two adjacent first switching flow dividing holes communicate with each other, the four-way valve and the corresponding heat exchange branches are disconnected through the second switching flow dividing holes, and therefore at least part of the heat exchange branches are connected in series. Therefore, the number of the heat exchange branches can be increased, the effect of high refrigerating capacity is achieved, the number of the heat exchange branches can be reduced, and the effect of high heating capacity is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to an air conditioner. Background Art

[0002] Air conditioners are commonly used household appliances, and generally have a cooling mode and a heating mode. The evaporator of the air conditioner is shunted through a flute-shaped pipe, and such shunting is fixed and the flow path will not change.

[0003] In the cooling mode, the evaporator is in an evaporation state, where the refrigerant pressure is relatively low and the resistance of the refrigerant in the heat exchange pipe is also relatively large. A single flow path is not suitable for a large number of pipelines. When heating, the evaporator acts as a condenser. A single flow path requires a relatively faster flow rate than during evaporation, and a longer flow path is needed to increase the condenser pressure and the condensation temperature to increase the heating capacity.

[0004] The evaporator with a fixed flow path in the prior art cannot be compatible with an efficient matching of the flow path in the cooling and heating modes. Summary of the Invention

[0005] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, an object of the present invention is to provide an air conditioner that can change the flow path in the cooling and heating modes, so that multiple heat exchange branches in the cooling mode can be connected in parallel to increase the number of heat exchange branches and achieve a high cooling capacity effect, or at least a part of multiple heat exchange branches in the heating mode can be connected in series to reduce the number of heat exchange branches and achieve a high heating capacity effect.

[0006] To achieve the above object, according to an embodiment of the present invention, an air conditioner is provided, including: a compressor having an inlet and an outlet; an outdoor heat exchanger; an indoor heat exchanger; a throttling element connected between the outdoor heat exchanger and the indoor heat exchanger;

[0007] a four-way valve respectively connected to the inlet, the outlet, the outdoor heat exchanger and the indoor heat exchanger to form a circulation loop for the refrigerant to flow, and the four-way valve selectively switches the flow direction of the refrigerant in the circulation loop;

[0008] The indoor heat exchanger includes: a heat exchanger main body including multiple heat exchange branches;

[0009] a first flow distributor including a first normally open shunt hole and at least two first switching shunt holes, both the first normally open shunt hole and the at least two first switching shunt holes are connected to the heat exchange branches, and at least two first switching shunt holes selectively switch the flow direction of the refrigerant between the throttling element and the corresponding heat exchange branches;

[0010] A second flow distributor, the second flow distributor including a second always-open shunt hole and at least two second switching shunt holes, both the second always-open shunt hole and the at least two second switching shunt holes being connected to the heat exchange branch, two adjacent second switching shunt holes being communicated with each other, and the at least two second switching shunt holes selectively switching the flow direction of the refrigerant between the four-way valve and the corresponding heat exchange branch;

[0011] Wherein, when the air conditioner operates in the cooling mode, the first switching shunt hole conducts the throttling element and the corresponding heat exchange branch, and the second switching shunt hole conducts the four-way valve and the corresponding heat exchange branch, so that a plurality of the heat exchange branches are connected in parallel;

[0012] When the air conditioner operates in the heating mode, the first switching shunt hole disconnects the throttling element and the corresponding heat exchange branch and connects two adjacent first switching shunt holes, and the second switching shunt hole disconnects the four-way valve and the corresponding heat exchange branch, so that at least a part of the plurality of heat exchange branches are connected in series.

[0013] Thus, the air conditioner can change the flow path in the cooling and heating modes, so that a plurality of heat exchange branches in the cooling mode can be connected in parallel, increasing the number of heat exchange branches, achieving the effect of high cooling capacity, and also enabling at least a part of the plurality of heat exchange branches in the heating mode to be connected in series, reducing the number of heat exchange branches, and achieving the effect of high heating capacity.

[0014] According to some embodiments of the present invention, the first flow distributor includes: a first housing, the first housing forming a first manifold groove, the first always-open shunt hole, the at least two first switching shunt holes and a first bypass channel, the first manifold groove being respectively connected to the throttling element, the first always-open shunt hole and the at least two first switching shunt holes, and the first bypass channel being connected between two adjacent first switching shunt holes;

[0015] At least two first one-way valves, the at least two first one-way valves corresponding to the at least two first switching shunt holes one by one and being movably disposed in the corresponding first switching shunt holes;

[0016] When the air conditioner operates in the cooling mode, the first one-way valve conducts the corresponding first switching shunt hole and the first manifold groove and closes the corresponding first bypass channel;

[0017] When the air conditioner operates in the heating mode, the first one-way valve disconnects the corresponding first switching shunt hole and the first manifold groove and opens the corresponding first bypass channel.

[0018] According to some embodiments of the present invention, the first one-way valve includes: a first sealing portion; a second sealing portion, the second sealing portion is connected to the first sealing portion and is located on a side of the first sealing portion away from the first manifold groove;

[0019] When the air conditioner operates in the cooling mode, the first sealing portion conducts the corresponding first switching shunt hole and the first manifold groove, and the second sealing portion closes the corresponding first bypass passage;

[0020] When the air conditioner operates in the heating mode, the first sealing portion disconnects the corresponding first switching shunt hole and the first manifold groove, and the second sealing portion opens the corresponding first bypass passage.

[0021] According to some embodiments of the present invention, in the direction of refrigerant flow from the first manifold groove to the first switching shunt hole, the first switching shunt hole has a first cylindrical hole section and a first conical hole section; the first sealing portion includes: a first cylindrical section; a first conical section, the first conical section is connected to the first cylindrical section and is located on a side of the first cylindrical section away from the first manifold groove;

[0022] When the air conditioner operates in the heating mode, the first cylindrical section is in sealing fit with the first cylindrical hole section and controls the first conical section to be in sealing fit with the first conical hole section.

[0023] According to some embodiments of the present invention, the second sealing portion is configured as an arc-shaped sealing plate adapted to the inner wall of the first switching shunt hole.

[0024] According to some embodiments of the present invention, the inner wall of the first switching shunt hole is provided with a chute extending along the axial direction of the first switching shunt hole; the first one-way valve further includes: a first support plate, the first support plate is respectively connected to the first sealing portion and the second sealing portion, a first flow channel is formed on one side of the first support plate, and a part of the first support plate protruding from the second sealing portion is in sliding fit with the chute.

[0025] According to some embodiments of the present invention, the second flow distributor includes: a second housing, the second housing is formed with a second manifold groove, the second constant-through shunt hole, the at least two second switching shunt holes and a second bypass passage, the second manifold groove is respectively connected to the throttling element, the second constant-through shunt hole and the at least two second switching shunt holes, and the second bypass passage is connected between two adjacent second switching shunt holes;

[0026] At least two second one-way valves, the at least two second one-way valves correspond to the at least two second switching shunt holes one by one;

[0027] When the air conditioner operates in the cooling mode, the second one-way valve conducts the corresponding second switching shunt hole and the second manifold groove;

[0028] When the air conditioner operates in the heating mode, the second one-way valve disconnects the corresponding second switching shunt hole and the second manifold groove.

[0029] According to some embodiments of the present invention, the second switching shunt hole includes: a first hole section, the second one-way valve is movably arranged in the first hole section and a first flow channel is formed between the second one-way valve and the inner wall of the first hole section, and the first hole section is connected to the second manifold groove;

[0030] a second hole section, the second hole section is connected to the first hole section, and the maximum cross-sectional area of the second hole section is smaller than the cross-sectional area of the first hole section;

[0031] a third hole section, the third hole section is connected to the second hole section, the cross-sectional area of the third hole section is larger than the maximum cross-sectional area of the second hole section, and the second bypass channel penetrates through the wall of the third hole section;

[0032] When the air conditioner operates in the cooling mode, the second one-way valve conducts the corresponding first hole section and the second hole section;

[0033] When the air conditioner operates in the heating mode, the second one-way valve disconnects the corresponding first hole section and the second hole section.

[0034] According to some embodiments of the present invention, in the direction of the refrigerant flowing from the first hole section to the second hole section, the second hole section has a second cylindrical hole section and a second conical hole section; the second one-way valve includes: a second cylindrical section;

[0035] a second conical section, the second conical section is connected to the second cylindrical section and is located on the side of the second cylindrical section close to the second manifold groove;

[0036] When the air conditioner operates in the heating mode, the second cylindrical section is in sealing fit with the second cylindrical hole section, and the second conical section is in sealing fit with the second conical hole section.

[0037] According to some embodiments of the present invention, the second one-way valve further includes: a third cylindrical section, the third cylindrical section is connected to the second conical section and is located on the side of the second conical section far from the second manifold groove; a second support plate, the second support plate is connected to the outer periphery of the third cylindrical section, and a second flow channel is formed on one side of the second support portion.

[0038] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, where:

[0040] Figure 1 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention;

[0041] Figure 2 is a schematic diagram of the refrigerant medium flow in the refrigeration mode in the air conditioner according to an embodiment of the present invention;

[0042] Figure 3 is a schematic diagram of the refrigerant medium flow of the indoor heat exchanger, the first flow distributor, and the second flow distributor in the refrigeration mode according to an embodiment of the present invention;

[0043] Figure 4 is a schematic diagram of the refrigerant medium flow in the heating mode in the air conditioner according to an embodiment of the present invention;

[0044] Figure 5 is a schematic diagram of the refrigerant medium flow of the indoor heat exchanger, the first flow distributor, and the second flow distributor in the heating mode according to an embodiment of the present invention;

[0045] Figure 6 is a schematic structural diagram of the first flow distributor according to an embodiment of the present invention;

[0046] Figure 7 is a schematic structural diagram of the first housing containing the first manifold groove according to an embodiment of the present invention;

[0047] Figure 8 is a top view of the inside of the first manifold groove according to an embodiment of the present invention;

[0048] Figure 9 is a cross-sectional view of the first flow distributor according to an embodiment of the present invention;

[0049] Figure 10 is a cross-sectional view of the first switching shunt hole being conducted according to an embodiment of the present invention;

[0050] Figure 11 is a cross-sectional view of the first switching shunt hole being closed according to an embodiment of the present invention;

[0051] Figure 12 is a schematic structural diagram of the first check valve according to an embodiment of the present invention;

[0052] Figure 13 is a side view of the first check valve according to an embodiment of the present invention;

[0053] Figure 14Schematic structural diagram of the second flow distributor according to an embodiment of the present invention;

[0054] Figure 15 Top view of the interior of the second manifold according to an embodiment of the present invention;

[0055] Figure 16 Cross-sectional view of the second flow distributor according to an embodiment of the present invention;

[0056] Figure 17 Cross-sectional view of the second switching shunt hole closed according to an embodiment of the present invention;

[0057] Figure 18 Cross-sectional view of the second switching shunt hole conducting according to an embodiment of the present invention;

[0058] Figure 19 Schematic structural diagram of the second check valve according to an embodiment of the present invention;

[0059] Figure 20 Schematic structural diagram of the indoor heat exchanger including an inflow main pipe and an outflow main pipe according to an embodiment of the present invention.

[0060] Reference numerals:

[0061] 100, air conditioner;

[0062] 10, compressor; 11, inlet; 12, outlet; 13, outflow main pipe; 14, inflow main pipe;

[0063] 20, outdoor heat exchanger;

[0064] 30, indoor heat exchanger; 31, heat exchanger body;

[0065] 40, throttling element;

[0066] 50, four-way valve;

[0067] 60, first flow distributor; 61, first normally open shunt hole;

[0068] 62, first switching shunt hole; 621, first cylindrical hole section; 622, first conical hole section;

[0069] 63, first housing; 631, first sealing cover; 64, first manifold; 65, first bypass channel;

[0070] 66, first check valve; 661, first support plate; 662, first flow channel; 663, chute;

[0071] 67, first sealing portion; 671, first cylindrical section; 672, first conical section;

[0072] 68, second sealing portion;

[0073] 70. Second flow distributor; 71. Second normally open shunt hole; 72. Second switching shunt hole;

[0074] 73. Second housing; 731. Second sealing cover; 74. Second manifold; 75. Second bypass passage;

[0075] 76. Second check valve; 77. Second cylindrical section; 78. Second conical section; 79. Third cylindrical section; 80. Second support plate; 81. Second flow channel;

[0076] 90. First hole section; 91. Second hole section; 911. Second cylindrical hole section; 912. Second conical hole section; 92. Third hole section. Detailed implementation mode

[0077] The embodiments of the present invention will be described in detail below. The embodiments described with reference to the accompanying drawings are exemplary.

[0078] The air conditioner includes an indoor unit and an outdoor unit. The indoor unit and the outdoor unit are connected by pipelines to transfer refrigerant. The indoor unit of the air conditioner includes an indoor heat exchanger and an indoor fan. The outdoor unit 100 of the air conditioner includes a compressor, a four-way valve, an outdoor heat exchanger, an outdoor fan, and a throttling device. The compressor, the outdoor heat exchanger, the throttling device, and the indoor heat exchanger connected in sequence form a refrigerant circuit, and the refrigerant circulates in the refrigerant circuit, and exchanges heat with air through the outdoor heat exchanger and the indoor heat exchanger respectively to achieve the cooling mode or the heating mode of the air conditioner.

[0079] The compressor is configured to compress the refrigerant so that the low-pressure refrigerant is compressed to form a high-pressure refrigerant.

[0080] The outdoor heat exchanger is configured to exchange heat between the outdoor air and the refrigerant flowing in the outdoor heat exchanger. For example, the outdoor heat exchanger operates as a condenser in the cooling mode of the air conditioner, so that the refrigerant compressed by the compressor dissipates heat to the outdoor air through the outdoor heat exchanger and condenses. The outdoor heat exchanger operates as an evaporator in the heating mode of the air conditioner, so that the decompressed refrigerant absorbs the heat of the outdoor air through the outdoor heat exchanger and evaporates.

[0081] In some embodiments, the outdoor heat exchanger further includes heat exchange fins to increase the contact area between the outdoor air and the refrigerant flowing in the outdoor heat exchanger, thereby improving the heat exchange efficiency between the outdoor air and the refrigerant.

[0082] The outdoor fan is configured to suck the outdoor air into the outdoor unit 100 of the air conditioner through the air inlet of the outdoor unit 100 of the air conditioner, and send the outdoor air that has exchanged heat with the outdoor heat exchanger out through the air outlet of the outdoor unit 100 of the air conditioner. The outdoor fan provides power for the flow of the outdoor air.

[0083] The throttling device is connected between the outdoor heat exchanger and the indoor heat exchanger. The opening degree of the throttling device adjusts the refrigerant pressure flowing through the outdoor heat exchanger and the indoor heat exchanger, so as to adjust the refrigerant flow rate flowing between the outdoor heat exchanger and the indoor heat exchanger. The flow rate and pressure of the refrigerant flowing between the outdoor heat exchanger and the indoor heat exchanger will affect the heat exchange performance of the outdoor heat exchanger and the indoor heat exchanger. The throttling device can be an electronic valve. The opening degree of the electronic expansion valve is adjustable to control the flow rate and pressure of the refrigerant flowing through the electronic expansion valve.

[0084] The four-way valve is connected within the refrigerant circuit. The four-way valve is configured to switch the flow direction of the refrigerant in the refrigerant circuit so that the air conditioner executes the refrigeration mode or the heating mode. In some embodiments, the indoor heat exchanger further includes heat exchange fins to increase the contact area between the indoor air and the refrigerant flowing in the indoor heat exchanger, thereby improving the heat exchange efficiency between the indoor air and the refrigerant.

[0085] The indoor heat exchanger is configured to exchange heat between the indoor air and the refrigerant flowing in the indoor heat exchanger. For example, the indoor heat exchanger operates as an evaporator in the refrigeration mode of the air conditioner, so that the refrigerant after dissipating heat through the outdoor heat exchanger absorbs the heat of the indoor air through the indoor heat exchanger and evaporates. The indoor heat exchanger operates as a condenser in the heating mode of the air conditioner, so that the refrigerant after absorbing heat through the outdoor heat exchanger dissipates the heat to the indoor air through the indoor heat exchanger and condenses.

[0086] In some embodiments, the indoor heat exchanger further includes heat exchange fins to increase the contact area between the indoor air and the refrigerant flowing in the indoor heat exchanger, thereby improving the heat exchange efficiency between the indoor air and the refrigerant.

[0087] The indoor fan is configured to suck the indoor air into the indoor unit of the air conditioner through the air inlet of the indoor unit of the air conditioner, and send out the indoor air after heat exchange with the indoor heat exchanger through the air outlet of the indoor unit of the air conditioner. The indoor fan provides power for the flow of the indoor air.

[0088] The air conditioner further includes a control device. The control device is configured to control the operating frequency of the compressor, the opening degree of the expansion valve, the rotational speed of the outdoor fan, and the rotational speed of the indoor fan. The control device is connected to the compressor, the throttling device, the outdoor fan, and the indoor fan through data lines to transmit communication information.

[0089] The control device includes a processor. The processor may include a central processing unit (CPU), a microprocessor, or an application specific integrated circuit (ASIC), and may be configured to perform the corresponding operations described in the control device when the processor executes a program stored in a non-transitory computer-readable medium coupled to the control device. The non-transitory computer-readable storage medium may include a magnetic storage device (e.g., a hard disk, a floppy disk, or a magnetic tape), a smart card, or a flash memory device (e.g., an erasable programmable read-only memory (EPROM), a card, a stick, or a key drive).

[0090] An air conditioner according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0091] As Figures 1 - 20 shown, an air conditioner 100 according to an embodiment of the present invention includes a compressor 10, an outdoor heat exchanger 20, an indoor heat exchanger 30, a throttling element 40, and a four-way valve 50. The compressor 10 has an inlet 11 and an outlet 12. The throttling element 40 is connected between the outdoor heat exchanger 20 and the indoor heat exchanger 30.

[0092] Among them, as Figure 2 shown, the outlet 12 of the compressor 10 is used to discharge the refrigerant medium. The throttling element 40 is connected between the outdoor heat exchanger 20 and the indoor heat exchanger 30, so as to play a role in throttling and reducing pressure, regulating the flow rate, and preventing overheating.

[0093] The four-way valve 50 is respectively connected to the inlet 11, the outlet 12, the outdoor heat exchanger 20, and the indoor heat exchanger 30, so as to form a circulation loop for the refrigerant to flow. The four-way valve 50 selectively switches the flow direction of the refrigerant in the circulation loop, so as to form different heating flow paths and refrigeration flow paths.

[0094] The indoor heat exchanger 30 includes a heat exchanger main body 31, a first flow distributor 60, and a second flow distributor 70. The heat exchanger main body 31 includes a plurality of heat exchange branches. The first flow distributor 60 includes a first always-open shunt hole 61 and at least two first switching shunt holes 62. Both the first always-open shunt hole 61 and the at least two first switching shunt holes 62 are connected to heat exchange branches. The at least two first switching shunt holes 62 selectively switch the flow direction of the refrigerant between the throttling element 40 and the corresponding heat exchange branches.

[0095] Among them, the setting of multiple heat exchange branches can change the number of heat exchange flow paths and the flow path length, so that the air conditioner 100 can perform efficient refrigeration and heating. In addition, the first flow distributor 60 mainly consists of a first always-open shunt hole 61 and at least two first switching shunt holes 62. The first always-open shunt hole 61 is always in an open state in both the refrigeration and heating modes, so as to ensure the inflow and outflow of the refrigerant medium in the compressor 10.

[0096] In the refrigeration mode, as Figure 3 shown, at least two first switching shunt holes 62 are all in an open state, and multiple heat exchange branches can be formed, so as to increase the number of heat exchange flow paths and achieve the effect of high refrigeration capacity.

[0097] In the heating mode, as Figure 5 shown, at least two first switching shunt holes 62 are all in a closed state, so that the number of flow paths can be reduced and the effect of high heating capacity can be achieved.

[0098] The second flow distributor 70 includes a second always-open shunt hole 71 and at least two second switching shunt holes 72. The second always-open shunt hole 71 and at least two second switching shunt holes 72 are both connected to heat exchange branches. Two adjacent second switching shunt holes 72 are communicated. At least two second switching shunt holes 72 selectively switch the flow direction of the refrigerant between the four-way valve 50 and the corresponding heat exchange branch.

[0099] Among them, the second flow distributor 70 mainly consists of a second always-open shunt hole 71 and at least two second switching shunt holes 72. The second always-open shunt hole 71 is also always in an open state in both the refrigeration and heating modes to ensure the inflow and outflow of the refrigerant medium in the compressor 10.

[0100] In the heating mode, the refrigerant medium in the compressor 10 flows into at least two second switching shunt holes 72 through the four-way valve 50. At least two second switching shunt holes 72 are closed under the action of the refrigerant, and the refrigerant medium cannot be shunted through at least the second switching shunt holes 72. However, two adjacent second switching shunt holes 72 are communicated, so that two adjacent flow paths can be converted into one flow path, thus reducing the number of flow paths and increasing the heating capacity.

[0101] Specifically, as Figure 2 and Figure 3As shown, when the air conditioner 100 operates in the cooling mode, the first switching shunt hole 62 conducts the throttling element 40 and the corresponding heat exchange branch. The refrigerant medium in the compressor 10 comes out from the outlet 12, passes through the four-way valve 50, and enters the outdoor heat exchanger 20. The outdoor heat exchanger 20 can act as a condenser. The refrigerant medium of the outdoor heat exchanger 20 flows through the throttling element 40 and then into at least two first switching shunt holes 62. Under the action of the refrigerant medium, at least two first switching shunt holes 62 are all in the open state. The refrigerant medium passing through at least two first switching shunt holes 62 is shunted, so that multiple heat exchange branches can be connected.

[0102] Further, the second switching shunt hole 72 conducts the four-way valve 50 and the corresponding heat exchange branch. Among them, at least two second switching shunt holes 72 are all in the open state under the action of the refrigerant medium. The refrigerant medium of at least two first switching shunt holes 62 passes through the corresponding at least two second switching shunt holes 72, so that multiple heat exchange branches can be connected in parallel.

[0103] Moreover, no switch control is required. When the mode changes, the change in the refrigerant flow direction can change the number of flow paths and the flow path length of the indoor heat exchanger 30.

[0104] Moreover, the four-way valve 50 is connected to the corresponding at least two second switching shunt holes 72, so that the refrigerant medium of at least two second switching shunt holes 72 can return to the compressor 10 through the four-way valve 50 after the refrigeration is completed, which is convenient for the recycling of the refrigerant medium.

[0105] When the air conditioner 100 operates in the heating mode, the first switching shunt hole 62 disconnects the throttling element 40 and the corresponding heat exchange branch and connects two adjacent first switching shunt holes 62. The second switching shunt hole 72 disconnects the four-way valve 50 and the corresponding heat exchange branch, so that at least a part of multiple heat exchange branches are connected in series.

[0106] Specifically, as Figure 4 and Figure 5 shown, in the heating mode, the refrigerant medium in the compressor 10 first passes through the four-way valve 50 and then directly enters the second always-open shunt hole 71. The second switching shunt hole 72 is closed under the action of the refrigerant medium, so that the second switching shunt hole 72 is disconnected from the four-way valve 50. Then, the refrigerant medium of the second always-open shunt hole 71 passes through two adjacent first switching shunt holes 62.

[0107] In this way, two adjacent first switching and diverting holes 62 are connected in series to form a flow path. In this way, the refrigerant medium in two adjacent first switching and diverting holes 62 then enters two adjacent and connected second switching and diverting holes 72. Two adjacent and connected second switching and diverting holes 72 are also connected in series to form a flow path, and then flow out from the first constantly open diverting hole 61 and finally flow back to the compressor 10. Thus, at least a part of multiple heat exchange branches can be connected in series to achieve efficient heating.

[0108] Therefore, the air conditioner 100 can change the flow path in the cooling and heating modes. Thus, multiple heat exchange branches in the cooling mode can be connected in parallel to increase the number of heat exchange branches and achieve the effect of high cooling capacity. Also, at least a part of multiple heat exchange branches in the heating mode can be connected in series to reduce the number of heat exchange branches and achieve the effect of high heating capacity.

[0109] According to some embodiments of the present invention, as Figure 6 and Figure 10 shown, the first flow distributor 60 includes: a first housing 63 and at least two first one-way valves 66. The first housing 63 is formed with a first manifold 64, a first constantly open diverting hole 61, at least two first switching and diverting holes 62, and a first bypass passage 65. The first manifold 64 is respectively connected to the throttling element 40, the first constantly open diverting hole 61, and at least two first switching and diverting holes 62. The first bypass passage 65 is connected between two adjacent first switching and diverting holes 62.

[0110] Among them, a first manifold 64 is formed inside the first housing 63. The first manifold 64 can facilitate the collection of the refrigerant medium. Further, a first constantly open diverting hole 61 and at least two first switching and diverting holes 62 are formed in the first manifold 64. In this way, in the cooling mode, the refrigerant medium collected in the first manifold 64 can quickly enter the first constantly open diverting hole 61 and at least two first switching and diverting holes 62. In the heating mode, the refrigerant medium in the first constantly open diverting hole 61 and at least two first switching and diverting holes 62 can quickly gather in the first manifold 64 after flowing out.

[0111] The first flow distributor 60 further includes: a first sealing cover 631. The first sealing cover 631 is conical, and the sealing edge of the first sealing cover 631 is in sealing cooperation with the first manifold 64.

[0112] In addition, the first bypass passage 65 can connect two adjacent first switching and diverting holes 62. In this way, the heat exchange branches corresponding to at least two first switching and diverting holes 62 can be connected in series to form one, so as to facilitate reducing the number of multiple heating flow paths to increase the heating capacity.

[0113] Further, at least two first one-way valves 66 correspond to at least two first switching shunt holes 62 one by one, and at least two first one-way valves 66 are movably disposed within corresponding first switching shunt holes 62.

[0114] Among them, as Figure 5 shown, in the heating mode, at least two first one-way valves 66 move away from the first bypass passage 65 under the action of the refrigerant medium, and can seal the corresponding first switching shunt holes 62, so that the refrigerant medium between two adjacent first switching shunt holes 62 can be communicated.

[0115] As Figure 3 shown, in the cooling mode, at least two first one-way valves 66 move close to the first bypass passage 65 under the action of the refrigerant medium, the first one-way valve 66 can seal the first bypass passage 65, and at least two first switching shunt holes 62 are all in an open state, and at least two heat exchange branches can be formed. By increasing the heat exchange branches, the cooling capacity can be improved.

[0116] In addition, when the air conditioner 100 operates in the cooling mode, the first one-way valve 66 conducts the corresponding first switching shunt hole 62 and the first manifold 64 and closes the corresponding first bypass passage 65.

[0117] Specifically, in the cooling mode, the refrigerant medium flowing to the first manifold 64 gathers and then flows into the corresponding first switching shunt holes 62 respectively. The refrigerant medium pushes the first one-way valve 66 in the first switching shunt hole 62 towards the first bypass passage 65. In this way, the first one-way valve 66 can close the corresponding first bypass passage 65, so that two adjacent first switching shunt holes 62 are not communicated.

[0118] As Figure 5 shown, when the air conditioner 100 operates in the heating mode, the first one-way valve 66 disconnects the corresponding first switching shunt hole 62 and the first manifold 64 and the first one-way valve 66 opens the corresponding first bypass passage 65.

[0119] Specifically, in the heating mode, the first one-way valve 66 in the first switching shunt hole 62 moves away from the first bypass passage 65 under the push of the refrigerant medium. In this way, the first bypass passage 65 can be opened, and the first one-way valve 66 seals the channel connecting the first switching shunt hole 62 and the first manifold 64, so that the refrigerant medium can only flow through the first bypass passage 65, so as to realize the series connection of at least two adjacent first switching shunt holes 62.

[0120] According to some embodiments of the present invention, as Figure 11 and Figure 12As shown, the first one-way valve 66 includes: a first sealing portion 67 and a second sealing portion 68. The second sealing portion 68 is connected to the first sealing portion 67, and the second sealing portion 68 is located on the side of the first sealing portion 67 away from the first manifold 64.

[0121] Among them, the first sealing portion 67 is used to seal the channel through which the first manifold 64 communicates with the first switching shunt hole 62, and the second sealing portion 68 is used to seal the first bypass channel 65. The first one-way valve 66 can slide within the first switching shunt hole 62, so as to selectively seal the first switching shunt hole 62 and the first bypass channel 65.

[0122] As Figure 3 and Figure 10 shown, when the air conditioner 100 operates in the cooling mode, the first sealing portion 67 conducts the corresponding first switching shunt hole 62 and the first manifold 64, and the second sealing portion 68 closes the corresponding first bypass channel 65.

[0123] Specifically, during cooling, the refrigerant medium flowing into the first manifold 64 pushes the first one-way valve 66 in the first switching shunt hole 62 towards the first bypass channel 65. In this way, the first sealing portion 67 is away from the channel connecting the first manifold 64 and the first switching shunt hole 62, so that the first switching shunt hole 62 and the first manifold 64 can be conducted.

[0124] As Figure 5 shown, when the air conditioner 100 operates in the heating mode, the first sealing portion 67 disconnects the corresponding first switching shunt hole 62 and the first manifold 64, and the second sealing portion 68 opens the corresponding first bypass channel 65.

[0125] Among them, during heating, the refrigerant medium enters from the side of the first switching shunt hole 62 facing away from the first manifold 64. The refrigerant medium pushes the first one-way valve 66 in the first switching shunt hole 62 towards the first manifold 64 for sealing, so that the first switching shunt hole 62 and the first manifold 64 can be disconnected.

[0126] According to some embodiments of the present invention, as Figure 10 and Figure 11 shown, in the direction of the refrigerant flowing from the first manifold 64 to the first switching shunt hole 62, the first switching shunt hole 62 has a first cylindrical hole section 621 and a first conical hole section 622. The first sealing portion 67 includes: a first cylindrical section 671 and a first conical section 672. The first conical section 672 is connected to the first cylindrical section 671, and the first conical section 672 is located on the side of the first cylindrical section 671 away from the first manifold 64.

[0127] Among them, the first switching and shunting hole 62 is mainly composed of a first cylindrical hole section 621 and a first conical hole section 622. The first conical hole section 622 corresponds to the first conical section 672 of the first sealing portion 67. In this way, the first conical section 672 of the first sealing portion 67 can be in close sealing cooperation with the first conical hole section 622, and the first cylindrical hole section 621 of the first sealing portion 67 can also be in sealing cooperation with the first cylindrical hole section 621, so as to ensure that the first sealing portion 67 seals the first switching and shunting hole 62 more tightly.

[0128] When the air conditioner 100 operates in the heating mode, the first cylindrical section 671 is in sealing cooperation with the first cylindrical hole section 621, and the first conical section 672 is controlled to be in sealing cooperation with the first conical hole section 622.

[0129] Specifically, during heating, the first one-way valve 66 moves towards the first collecting groove 64 under the push of the refrigerant medium. In this way, the first cylindrical section 671 of the first one-way valve 66 first contacts and seals with the first cylindrical hole section 621 in the first switching and shunting hole 62. Further, the first conical section 672 of the first one-way valve 66 contacts and seals with the first conical hole section 622 in the first switching and shunting hole 62, so as to ensure the sealing performance of the first one-way valve 66 to the first switching and shunting hole 62.

[0130] According to some embodiments of the present invention, as Figure 12 shown, the second sealing portion 68 is configured as an arc-shaped sealing plate adapted to the inner wall of the first switching and shunting hole 62.

[0131] Among them, the inner wall of the first switching and shunting hole 62 is arc-shaped. Correspondingly, the second sealing portion 68 is also arranged as an arc-shaped sealing plate. When in the cooling mode, under the push of the refrigerant medium, the second sealing portion 68 of the first one-way valve 66 will seal the first bypass channel 65, so that the two adjacent first switching and shunting holes 62 are both independent heat exchange branches.

[0132] According to some embodiments of the present invention, as Figure 9 shown, the inner wall of the first switching and shunting hole 62 is provided with a sliding groove 663 extending along the axial direction of the first switching and shunting hole 62. The first one-way valve 66 further includes: a first support plate 661, the first support plate 661 is respectively connected to the first sealing portion 67 and the second sealing portion 68. A first flow channel 662 is formed on one side of the first support plate 661. A part of the first support plate 661 protruding from the second sealing portion 68 is in sliding cooperation with the sliding groove 663.

[0133] Wherein, a chute 663 is formed on the inner wall of the first switching shunt hole 62. Correspondingly, a part of the first support plate 661 protrudes from the second sealing portion 68 to form a guide rail, and the guide rail slides along the chute 663, so as to control the opening and closing of the first switching shunt hole 62. The first support plate 661 can provide a supporting effect for the first sealing portion 67 and the second sealing portion 68, thereby improving the strength of the first one-way valve 66.

[0134] Furthermore, a first flow channel 662 is formed between the first support plate 661 and the arc-shaped sealing plate, so as to facilitate the flow of the refrigerant medium.

[0135] According to some embodiments of the present invention, as Figure 17 shown, the second flow distributor 70 includes: a second housing 73 and at least two second one-way valves 76. The second housing 73 is formed with a second manifold 74, a second always-open shunt hole 71, at least two second switching shunt holes 72 and a second bypass channel 75. The second manifold 74 is respectively connected to the throttling element 40, the second always-open shunt hole 71 and at least two second switching shunt holes 72, and the second bypass channel 75 is connected between two adjacent second switching shunt holes 72.

[0136] Wherein, a second manifold 74 is formed inside the second housing 73, and the second manifold 74 can facilitate the collection of the refrigerant medium. Further, a second always-open shunt hole 71 and at least two second switching shunt holes 72 are formed in the second manifold 74. In this way, in the heating mode, the refrigerant medium collected by the second manifold 74 can quickly enter the second always-open shunt hole 71 and at least two second switching shunt holes 72. In the cooling mode, the refrigerant medium in the second always-open shunt hole 71 and at least two second switching shunt holes 72 can flow out and quickly gather in the second manifold 74.

[0137] The second flow distributor 70 further includes: a second sealing cover 731. The second sealing cover 731 is conical, and the sealing edge of the second sealing cover 731 is in sealing cooperation with the second manifold 74.

[0138] In addition, the second bypass channel 75 can connect two adjacent second switching shunt holes 72, so that the heat exchange branches corresponding to at least two second switching shunt holes 72 can be connected in series to form one, thereby facilitating the reduction of the number of multiple heating flow paths to increase the heating capacity.

[0139] At least two second one-way valves 76 correspond to at least two second switching shunt holes 72 one by one, and each second switching shunt hole 72 is provided with a second one-way valve 76. In this way, the second one-way valve 76 can control the opening and closing of the second switching shunt hole 72. In the heating mode, the second one-way valve 76 closes the second switching shunt hole 72 under the push of the refrigerant medium. In the cooling mode, the second one-way valve 76 opens the second switching shunt hole 72 under the push of the refrigerant medium, so as to facilitate the free conversion between the heating and cooling modes of the air conditioner 100.

[0140] In addition, when the air conditioner 100 operates in the cooling mode, the second one-way valve 76 conducts the corresponding second switching shunt hole 72 and the second manifold 74. When the air conditioner 100 operates in the heating mode, the second one-way valve 76 disconnects the corresponding second switching shunt hole 72 and the second manifold 74.

[0141] Specifically, in the cooling mode, the first one-way valve 66 in the second switching shunt hole 72 moves towards the second manifold 74 under the push of the refrigerant medium. In this way, the second switching shunt hole 72 and the second manifold 74 can be conducted, so as to increase the formation of the heat exchange branch. In the heating mode, the second one-way valve 76 moves away from the second manifold 74 under the push of the refrigerant medium. In this way, the second switching shunt hole 72 and the second manifold 74 can be disconnected, so as to reduce the formation of the heat exchange branch.

[0142] According to some embodiments of the present invention, as Figure 18 shown, the second switching shunt hole 72 includes: a first hole section 90, a second hole section 91 and a third hole section 92. The second one-way valve 76 is movably arranged in the first hole section 90, and a first flow channel 662 is formed between the second one-way valve 76 and the inner wall of the first hole section 90. The first hole section 90 is connected to the second manifold 74.

[0143] Among them, the second switching shunt hole 72 is mainly composed of a first hole section 90, a second hole section 91 and a third hole section 92. Since the first hole section 90 is communicated with the second hole section 91, the second one-way valve 76 in the first hole section 90 can control the opening and closing of the second hole section 91 under the push of the refrigerant medium.

[0144] Furthermore, the formation of the first flow channel 662 between the second one-way valve 76 and the inner wall of the first hole section 90 facilitates the flow of the refrigerant medium.

[0145] In addition, the second hole section 91 is connected to the first hole section 90. The maximum cross-sectional area of the second hole section 91 is smaller than the cross-sectional area of the first hole section 90. The third hole section 92 is connected to the second hole section 91. The cross-sectional area of the third hole section 92 is larger than the maximum cross-sectional area of the second hole section 91. The second bypass channel 75 penetrates the wall of the third hole section 92.

[0146] Among them, the maximum cross-sectional area of the second hole section 91 is smaller than the cross-sectional area of the first hole section 90, which can facilitate the sealing of the second hole section 91 by the second one-way valve 76.

[0147] Furthermore, the cross-sectional area of the third hole section 92 is larger than the maximum cross-sectional area of the second hole section 91, which can increase the flow rate and flow volume of the refrigerant medium. The second bypass passage 75 penetrates the wall of the third hole section 92, so that two adjacent second switching and shunting holes 72 can be connected in series as a heat exchange flow path, reducing the formation of heat exchange branches.

[0148] When the air conditioner 100 operates in the cooling mode, the second one-way valve 76 conducts the corresponding first hole section 90 and the second hole section 91. When the air conditioner 100 operates in the heating mode, the second one-way valve 76 disconnects the corresponding first hole section 90 and the second hole section 91.

[0149] Among them, during cooling, the second one-way valve 76 is pushed away from the second hole section 91 by the refrigerant medium, so that the first hole section 90 and the second hole section 91 can be conducted, facilitating the flow of the refrigerant medium. In the heating mode, the second one-way valve 76 moves towards the second hole section 91 under the push of the refrigerant medium, and the second one-way valve 76 can seal the second hole section 91, so that the first hole section 90 and the second hole section 91 can be disconnected.

[0150] According to some embodiments of the present invention, as Figure 18 shown, in the direction of the refrigerant flowing from the first hole section 90 to the second hole section 91, the second hole section 91 has a second cylindrical hole section 911 and a second conical hole section 912. The second one-way valve 76 includes: a second cylindrical section 77 and a second conical section 78. The second conical section 78 is connected to the second cylindrical section 77, and the second conical section 78 is located on the side of the second cylindrical section 77 close to the second flow collecting groove 74.

[0151] Among them, the second hole section 91 is mainly composed of the second cylindrical hole section 911 and the second conical hole section 912. Correspondingly, the second one-way valve 76 is correspondingly provided with a second cylindrical section 77 and a second conical section 78, so that the second one-way valve 76 can be closely matched with the second hole section 91.

[0152] When the air conditioner 100 operates in the heating mode, the second cylindrical section 77 is in sealing fit with the second cylindrical hole section 911, and the second conical section 78 is in sealing fit with the second conical hole section 912, so that the second one-way valve 76 can be more tightly matched with the second hole section 91, preventing the refrigerant medium from leaking.

[0153] According to some embodiments of the present invention, as Figures 17 - 19As shown, the second one-way valve 76 further includes: a third cylindrical section 79 and a second support plate 80. The third cylindrical section 79 is connected to the second conical section 78, and the third cylindrical section 79 is located on the side of the second conical section 78 away from the second manifold 74. The second support plate 80 is connected to the outer periphery of the third cylindrical section 79, and a second flow channel is formed on one side of the second support portion.

[0154] Among them, the third cylindrical section 79 can provide an installation position for the second support plate 80 and can also increase the strength of the second one-way valve 76. There are multiple second support plates 80, and the multiple second support plates 80 are arranged at intervals along the circumferential direction of the third cylinder, so that multiple second flow channels 81 can be formed. Also, one of the multiple second support plates 80 can be used as a guide rail, or multiple second support plates 80 are all in contact and cooperation with the first hole section 90, which can not only play a guiding role but also prevent the position of the second one-way valve 76 from deviating during the sliding process in the first hole section 90.

[0155] The guide rail can be in sliding cooperation with the chute 663 opened in the first hole section 90, so as to control the connection and disconnection of the refrigerant medium between the first hole section 90 and the second hole section 91.

[0156] Also, in this second flow distributor 70, two second normally open shunt holes 71 can be provided, and four second switching shunt holes 72 can be provided. Second one-way valves 76 are provided in all four second switching shunt holes 72, and a second bypass channel 75 is opened between two adjacent ones of the four second switching shunt holes 72. Additionally, a second bypass channel is opened between two adjacent second switching shunt holes.

[0157] In the first flow distributor 60, two first normally open shunt holes 61 can be provided, and four first switching shunt holes 62 can be provided. First one-way valves 66 are provided in all four first switching shunt holes 62, and a first bypass channel 65 is opened between two adjacent ones of the four first switching shunt holes 62. Additionally, a first bypass channel 65 is opened between two adjacent first switching shunt holes 62.

[0158] In this way, during refrigeration, six parallel heat exchange branches can be formed, and during heating, two series heat exchange branches can be formed, so that it is possible to achieve a large number of refrigeration heat exchange branches and a short flow path to achieve a high refrigeration capacity effect, and it is also possible to achieve a small number of heating heat exchange branches and a long flow path to achieve a high heating capacity effect.

[0159] The indoor heat exchanger 30 is also connected to the inflow main pipe 14 and the outflow main pipe 13, so as to facilitate the inflow and outflow of the refrigerant medium in the compressor 10.

[0160] The second flow distributor 70 is connected to the inflow branch pipe through the second switching shunt hole 72, and the other end is connected to the inflow main pipe 14. The inflow branch pipe is connected to the second flow distributor 70 through the second switching shunt hole 72, and the other end is connected to the long U-shaped pipe. The elbow connects the long U-shaped pipe orifice to form a process. The first flow distributor 60 is connected to the outflow branch pipe through the first switching shunt hole 62, and the other end is connected to the outflow main pipe 13. The outflow branch pipe 13 is connected to the first flow distributor 60 through the first switching shunt hole 62, and the other end is connected to the long U-shaped pipe of the evaporator.

[0161] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0162] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0163] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An air conditioner, comprising: a compressor having an inlet and an outlet; An outdoor heat exchanger, the outdoor heat exchanger is used to exchange heat with outdoor air; An indoor heat exchanger, wherein the indoor heat exchanger is used to exchange heat with outdoor air; A throttling element connected between the outdoor heat exchanger and the indoor heat exchanger; A four-way valve, wherein the four-way valve is respectively connected to the inlet, the outlet, the outdoor heat exchanger and the indoor heat exchanger to form a circulation loop for the flow of refrigerant, and the four-way valve selectively switches the flow direction of the refrigerant in the circulation loop; It is characterized in that The indoor heat exchanger comprises: A heat exchanger body, wherein the heat exchanger body comprises a plurality of heat exchange branches; A first flow distributor, the first flow distributor comprising a first normally open flow distribution hole and at least two first switching flow distribution holes, the first normally open flow distribution hole and the at least two first switching flow distribution holes are both connected to the heat exchange branch, and the at least two first switching flow distribution holes selectively switch the flow direction of the refrigerant between the throttling element and the corresponding heat exchange branch; A second flow distributor, the second flow distributor comprises a second normally-passing flow distributor hole and at least two second switching flow distributor holes, the second normally-passing flow distributor hole and the at least two second switching flow distributor holes are both connected to the heat exchange branch, two adjacent second switching flow distributor holes are connected, and the at least two second switching flow distributor holes selectively switch the flow direction of the refrigerant between the four-way valve and the corresponding heat exchange branch; in, When the air conditioner operates in cooling mode, the first switching shunt hole conducts the throttling element and the corresponding heat exchange branch, and the second switching shunt hole conducts the four-way valve and the corresponding heat exchange branch, so that a plurality of heat exchange branches are connected in parallel; When the air conditioner operates in heating mode, the first switching diverter hole disconnects the throttling element and the corresponding heat exchange branch and connects two adjacent first switching diverter holes, and the second switching diverter hole disconnects the four-way valve and the corresponding heat exchange branch to connect at least a part of the multiple heat exchange branches in series.

2. The air conditioner according to claim 1, characterized in that: The first flow distributor comprises: A first housing, wherein the first housing is formed with a first collecting groove, the first normally-passing flow diverter hole, the at least two first switching flow diverter holes and a first bypass channel, the first collecting groove is respectively connected to the throttling element, the first normally-passing flow diverter hole and the at least two first switching flow diverter holes, and the first bypass channel is connected between two adjacent first switching flow diverter holes; At least two first one-way valves, the at least two first one-way valves correspond to the at least two first switching flow diversion holes one by one and are movably disposed in the corresponding first switching flow diversion holes; When the air conditioner operates in a cooling mode, the first one-way valve connects the corresponding first switching flow diversion hole and the first collecting groove and closes the corresponding first bypass channel; When the air conditioner operates in a heating mode, the first one-way valve disconnects the corresponding first switching flow diversion hole and the first collecting groove and opens the corresponding first bypass channel.

3. The air conditioner according to claim 2, characterized in that: The first one-way valve comprises: a first sealing portion; a second sealing portion, the second sealing portion being connected to the first sealing portion and being located at a side of the first sealing portion away from the first collecting groove; When the air conditioner operates in a cooling mode, the first sealing portion connects the corresponding first switching flow diversion hole and the first collecting groove, and the second sealing portion closes the corresponding first bypass channel; When the air conditioner operates in a heating mode, the first sealing portion disconnects the corresponding first switching diverter hole and the first collecting groove, and the second sealing portion opens the corresponding first bypass channel.

4. The air conditioner according to claim 3, characterized in that: In the direction in which the refrigerant flows from the first manifold to the first switching flow diversion hole, the first switching flow diversion hole has a first cylindrical hole section and a first conical hole section; The first sealing portion comprises: first cylindrical section; a first conical section, the first conical section being connected to the first cylindrical section and being located at a side of the first cylindrical section away from the first collecting groove; When the air conditioner operates in a heating mode, the first cylindrical section is sealed and matched with the first cylindrical hole section, and the first conical section is controlled to be sealed and matched with the first conical hole section.

5. The air conditioner according to claim 2, characterized in that: The second sealing portion is configured as an arc-shaped sealing plate adapted to the inner wall of the first switching flow-dividing hole.

6. The air conditioner according to claim 2, characterized in that: The inner wall of the first switching flow diversion hole is provided with a sliding groove extending along the axial direction of the first switching flow diversion hole; The first one-way valve further comprises: A first support plate, wherein the first support plate is connected to the first sealing portion and the second sealing portion respectively, a first flow channel is formed on one side of the first support plate, and a portion of the first support plate protruding from the second sealing portion is slidably matched with the slide groove.

7. The air conditioner according to claim 1, characterized in that: The second flow distributor comprises: a second housing, wherein the second housing is formed with a second collecting groove, the second normally-passing flow diverting hole, the at least two second switching flow diverting holes, and a second bypass channel, the second collecting groove is respectively connected to the throttling element, the second normally-passing flow diverting hole, and the at least two second switching flow diverting holes, and the second bypass channel is connected between two adjacent second switching flow diverting holes; At least two second one-way valves, the at least two second one-way valves corresponding to the at least two second switching diverter holes one by one; When the air conditioner operates in a cooling mode, the second one-way valve connects the corresponding second switching flow diversion hole and the second manifold; When the air conditioner operates in a heating mode, the second one-way valve disconnects the corresponding second switching diverter hole and the second collecting groove.

8. The air conditioner according to claim 7, characterized in that: The second switching shunt hole comprises: a first hole section, the second one-way valve is movably disposed in the first hole section and a first flow channel is formed between the second one-way valve and the inner wall of the first hole section, and the first hole section is connected to the second manifold; a second hole segment, the second hole segment being connected to the first hole segment, the maximum cross-sectional area of ​​the second hole segment being smaller than the cross-sectional area of ​​the first hole segment; a third hole segment, the third hole segment being connected to the second hole segment, the cross-sectional area of ​​the third hole segment being larger than the maximum cross-sectional area of ​​the second hole segment, and the second bypass channel penetrating through a wall of the third hole segment; When the air conditioner operates in a cooling mode, the second one-way valve connects the corresponding first hole segment and the second hole segment; When the air conditioner operates in a heating mode, the second one-way valve disconnects the corresponding first hole section and the second hole section.

9. The air conditioner according to claim 8, characterized in that: In the direction of the coolant flowing from the first hole segment to the second hole segment, the second hole segment has a second cylindrical hole segment and a second conical hole segment; The second one-way valve comprises: The second cylindrical segment; a second conical section, the second conical section being connected to the second cylindrical section and being located at a side of the second cylindrical section close to the second collecting trough; When the air conditioner operates in a heating mode, the second cylindrical section is in sealing cooperation with the second cylindrical hole section, and the second conical section is in sealing cooperation with the second conical hole section.

10. The air conditioner according to claim 9, characterized in that: The second one-way valve further comprises: a third cylindrical section, the third cylindrical section being connected to the second conical section and being located on a side of the second conical section away from the second collecting groove; A second support plate is connected to the outer periphery of the third cylindrical section, and a second flow channel is formed on one side of the second support portion.

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