Air conditioner outdoor unit and air conditioner

Abstract

The utility model discloses an air conditioner outdoor unit and an air conditioner. The air conditioner outdoor unit comprises a shell; the partition plate is arranged in the shell and divides the interior of the shell into a heat exchange chamber and a mounting chamber; the first-stage heat exchanger assembly is provided with a first-stage main path and a first-stage auxiliary path, the second-stage heat exchanger assembly is provided with a second-stage main path and a second-stage auxiliary path, and the enthalpy spraying compressor is fixed in the mounting cavity; the outdoor heat exchanger is fixed in the heat exchange chamber; a first port of the first-stage main path is communicated with the indoor heat exchanger, a second port of the first-stage main path is communicated with a first port of the second-stage main path, and a second port of the second-stage main path is communicated with the outdoor heat exchanger; a first port of the first-stage auxiliary road is communicated with a second port of the second-stage main road through a first throttling component, a second port of the first-stage auxiliary road is communicated with an enthalpy spraying opening of the enthalpy spraying compressor, a first port of the second-stage auxiliary road is communicated with a second port of the first-stage main road through a second throttling component, and the second port of the second-stage auxiliary road is communicated with an inlet of the enthalpy spraying compressor. The operation performance of the air conditioner with the air conditioner outdoor unit is better.

Description

TECHNICAL FIELD

[0001] The present application relates to, but is not limited to, the technical field of air conditioners, in particular to an air conditioner outdoor unit and an air conditioner. BACKGROUND

[0002] In the existing heat pump air conditioning system, the problem of super-low temperature heating capacity attenuation is a big problem. In the past, the low-temperature heating capacity was generally improved by increasing electric heating in the indoor unit, but this method has low energy efficiency. In recent years, the jet enthalpy increasing technology has been widely used. A part of refrigerant is bypassed to the compressor through the jet enthalpy increasing circuit to improve the compressor work capacity. However, at present, in order to achieve the effect of jet enthalpy increasing, the liquid taking position of the economizer is usually set at the bypass position upstream or downstream of the compressor. However, under the condition of super-low temperature heating, the capacity of the jet enthalpy increasing circuit will be easily limited. CONTENT OF THE UTILITY MODEL

[0003] The embodiment of the present application provides an air conditioner outdoor unit, which comprises a shell, a partition plate vertically arranged in the shell and separating the interior of the shell into a heat exchange chamber and a mounting chamber, a primary heat exchanger assembly, a secondary heat exchanger assembly and a jet enthalpy compressor, all of which are fixed in the mounting chamber, and an outdoor heat exchanger fixed in the heat exchange chamber. The primary heat exchanger assembly has a primary main path and a primary auxiliary path, the secondary heat exchanger assembly has a secondary main path and a secondary auxiliary path, a first port of the primary main path is arranged to be in communication with an indoor heat exchanger, a second port of the primary main path is in communication with a first port of the secondary main path, a second port of the secondary main path is in communication with the outdoor heat exchanger, a first port of the primary auxiliary path is in communication with a second port of the secondary main path through a first throttling component, and a second port of the primary auxiliary path is in communication with a jet enthalpy port of the jet enthalpy compressor, a first port of the secondary auxiliary path is in communication with the second port of the primary main path through a second throttling component, and a second port of the secondary auxiliary path is in communication with an inlet of the jet enthalpy compressor.

[0004] In some example embodiments, the primary heat exchanger assembly comprises a primary heat exchanger having the primary main path and the primary auxiliary path, a mounting frame, the primary heat exchanger is fixed to the mounting frame, the mounting frame is fixed to the partition plate, and a first damping pad is arranged between the mounting frame and the partition plate and separates the mounting frame and the partition plate.

[0005] In some example embodiments, the first damping pad is provided with a first annular rib, the partition plate is provided with a first through hole, the first annular rib is arranged in the first through hole and extends to a side of the partition plate away from the mounting frame, a first bolt extends to the side of the partition plate away from the mounting frame in sequence through the mounting frame, the first damping pad and the first annular rib, a first nut is located at the side of the partition plate away from the mounting frame and is screwed on the first bolt, and the first nut is in abutment with an end surface of the first annular rib and is spaced apart from the partition plate.

[0006] In some example embodiments, the mounting frame comprises: a first folded plate having a first plate segment and a second plate segment, the second plate segment being located at a side of the first plate segment away from the partition plate, the first plate segment being provided with a avoiding hole, the first damping pad being provided with a supporting boss, the first plate segment being located at a side of the first damping pad away from the partition plate, and the supporting boss extending to the side of the first plate segment away from the partition plate through the avoiding hole; and a second folded plate assembled with the first folded plate and enclosing a limiting hole, the primary heat exchanger being located in the limiting hole and abutting against a table surface of the supporting boss.

[0007] In some example embodiments, an end of the second folded plate adjacent to the second plate segment is connected to the second plate segment in a plug-in manner, an end of the second folded plate adjacent to the first plate segment is provided with a flange, the flange abutting against a side of the first damping pad away from the partition plate, the first damping pad is provided with a second annular rib, the partition plate is provided with a second through hole, the second annular rib is arranged in the second through hole and extends to a side of the partition plate away from the mounting frame, a second bolt extends to the side of the partition plate away from the mounting frame in sequence through the flange, the first damping pad and the second annular rib, a second nut is located at the side of the partition plate away from the mounting frame and is screwed on the second bolt, and the second nut is in abutment with an end surface of the second annular rib and is spaced apart from the partition plate.

[0008] In some example embodiments, the secondary heat exchanger assembly comprises: a secondary heat exchanger having the secondary main path and the secondary auxiliary path; a fixing plate, the secondary heat exchanger being fixed to the fixing plate, and the fixing plate being fixed in the mounting chamber; and a second damping pad arranged between the fixing plate and the secondary heat exchanger and separating the fixing plate and the secondary heat exchanger.

[0009] In some example embodiments, the secondary heat exchanger is provided with a screw rod, the fixing plate is provided with a third through hole, the second shock-absorbing pad is provided with a third annular protruding rib, the third annular protruding rib is arranged in the third through hole and extends to a side of the fixing plate which is away from the secondary heat exchanger, the screw rod extends to the side of the fixing plate which is away from the secondary heat exchanger through the second shock-absorbing pad and the third annular protruding rib in sequence, a third nut is located at the side of the fixing plate which is away from the secondary heat exchanger and is screwed on the screw rod, and the third nut is in abutment with an end surface of the third annular protruding rib and is spaced apart from the fixing plate.

[0010] In some example embodiments, the air conditioner outdoor unit further comprises a gas-liquid separator fixed in the mounting chamber, a mounting plate arranged at a top of the gas-liquid separator, the fixing plate is fixed to the mounting plate, and a third shock-absorbing pad arranged between the fixing plate and the mounting plate and separating the fixing plate and the mounting plate.

[0011] In some example embodiments, the fixing plate comprises a third plate segment and a fourth plate segment, the fourth plate segment is provided with a clamping portion, a positioning portion and a screwing portion, the mounting plate is provided with a clamping matching portion, a positioning matching portion and a screwing matching portion, the clamping portion is clamped and connected with the clamping matching portion, the positioning portion is inserted and connected with the positioning matching portion, the screwing portion is screwed and connected with the screwing matching portion, the third plate segment is adjacent to the partition plate and is provided with an isolation shock-absorbing pad between the third plate segment and the partition plate, and the secondary heat exchanger and the second shock-absorbing pad are fixed to the third plate segment.

[0012] The application also provides an air conditioner, which comprises the air conditioner outdoor unit according to any one of the above example embodiments.

[0013] The technical scheme provided by the embodiment of the application is applied to an air conditioner, and when the air conditioner is in heating operation, the refrigerant flow direction is: the outlet of the ejector compressor - the indoor heat exchanger - the first main path - the second main path - the outdoor heat exchanger - the inlet of the ejector compressor. After the high-temperature and high-pressure gaseous refrigerant compressed by the ejector compressor flows to the indoor heat exchanger, the gaseous refrigerant is liquefied and released heat through the indoor heat exchanger, reaches the outdoor heat exchanger through the first main path and the second main path, is vaporized and absorbs heat through the outdoor heat exchanger, and finally returns to the inlet of the ejector compressor. When the first throttling component is opened, the first auxiliary path can take liquid from the second port of the second main path, and can also directly deliver gaseous refrigerant to the ejector port of the ejector compressor, so that the air conditioner is in a first-stage ejector enhanced heating state. Since the liquid taking position of the first auxiliary path is located after the second main path, the density of the supercooled refrigerant becomes larger, so that the mass flow rate of the refrigerant at the first port of the first auxiliary path is increased, and the ejector enhanced heating capacity of the first auxiliary path is improved. When the second throttling component is also opened, the second auxiliary path can take liquid from the second port of the first main path, and directly deliver part of the refrigerant to the inlet of the ejector compressor, so that the heat exchange load of the outdoor heat exchanger can be shared, and the evaporation temperature can be increased, so that the air conditioner is in a second-stage ejector enhanced heating state, and the temperature of the refrigerant returning to the inlet of the ejector compressor can be ensured not to be too low, so that the suction pressure of the inlet of the ejector compressor can be increased, the operation range of low-temperature heating can be expanded, and on the other hand, the condensing pressure can be increased after the low-pressure refrigerant is worked by the ejector compressor, so that the heat exchange capacity of the indoor side can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 A structural schematic diagram of an air conditioner provided by some embodiments of the application is shown in the figure.

[0015] Figure 2 A partial structural schematic diagram of a first heat exchanger assembly of an air conditioner outdoor unit provided by some embodiments of the application is shown in the figure.

[0016] Figure 3 A structural schematic diagram of the relative positions of a gas-liquid separator, a partition plate and a second heat exchanger assembly in an air conditioner outdoor unit provided by some embodiments of the application is shown in the figure. Figure 2

[0017] A structural schematic diagram of the relative positions of a gas-liquid separator, a partition plate and a second heat exchanger assembly in an air conditioner outdoor unit provided by some embodiments of the application is shown in the figure. Figure 4

[0018] A sectional structural schematic diagram of the second heat exchanger assembly at the second heat exchanger in the air conditioner outdoor unit provided by some embodiments of the application is shown in the figure. Figure 5 Figure 4 A sectional structural schematic diagram of the second heat exchanger assembly at the third damping pad in the air conditioner outdoor unit provided by some embodiments of the application is shown in the figure.

[0019] Figure 6 Figure 4 A sectional structural schematic diagram of the second heat exchanger assembly at the third damping pad in the air conditioner outdoor unit provided by some embodiments of the application is shown in the figure. ​​

[0020] Figure 7 Fig. 1 is a structural schematic diagram of a combination structure of a fixed plate and a mounting plate in an air conditioner outdoor unit according to an embodiment of the present application; Figure 4

[0021] Figure 8 Fig. 2 is a partial structural schematic diagram of a gas-liquid separator in an air conditioner outdoor unit according to an embodiment of the present application;

[0022] Figure 9 Fig. 3 is a structural schematic diagram of the fixed plate and the mounting plate after being assembled in an air conditioner outdoor unit according to an embodiment of the present application.

[0023] In the drawings, the components represented by the respective reference numerals are listed as follows:

[0024] 100 indoor heat exchanger, 300 partition plate, 400 primary heat exchanger assembly, 410 primary heat exchanger, 411 primary main path, 412 primary auxiliary path, 420 mounting rack, 421 first folded plate, 422 avoiding hole, 423 second folded plate, 424 flange, 430 first damping pad, 432 supporting boss, 500 secondary heat exchanger assembly, 510 secondary heat exchanger, 511 secondary main path, 512 secondary auxiliary path, 513 screw rod, 520 fixed plate, 521 third plate segment, 522 fourth plate segment, 530 second damping pad, 531 third annular convex rib, 532 clamping column, 600 jet compression compressor, 700 gas-liquid separator, 710 mounting plate, 720 third damping pad, 721 mounting column, 722 limiting boss, 800 four-way valve, 900 isolation damping pad, 910 first throttling component, 920 second throttling component, 930 liquid storage tank, 940 outdoor heat exchanger. DETAILED DESCRIPTION

[0025] The principles and features of the present application are described below in conjunction with the accompanying drawings, and the examples are only used to explain the present application and not to limit the scope of the present application.

[0026] The air conditioner provided by the embodiments of the present application includes an air conditioner indoor unit and an air conditioner outdoor unit, as shown in Fig. 1, the air conditioner indoor unit includes an indoor heat exchanger 100. As shown in Fig. 2, the air conditioner outdoor unit includes a gas-liquid separator 700. Figure 1 Figure 1 and Figure 2 ​​As shown, the air conditioner outdoor unit comprises: a shell; a partition plate 300 erected in the shell and separating the interior of the shell into a heat exchange chamber and a mounting chamber; a primary heat exchanger assembly 400, a secondary heat exchanger assembly 500 and an ejector compressor 600, all of which are fixed in the mounting chamber; and an outdoor heat exchanger 940 fixed in the heat exchange chamber; wherein the primary heat exchanger assembly 400 has a primary main path 411 and a primary auxiliary path 412, the secondary heat exchanger assembly 500 has a secondary main path 511 and a secondary auxiliary path 512, the first port of the primary main path 411 is arranged to be in communication with the indoor heat exchanger 100, the second port is in communication with the first port of the secondary main path 511, the second port of the secondary main path 511 is in communication with the outdoor heat exchanger 940, the first port of the primary auxiliary path 412 is in communication with the second port of the secondary main path 511 through a first throttling component 910, and the second port is in communication with the eject port c of the ejector compressor 600, the first port of the secondary auxiliary path 512 is in communication with the second port of the primary main path 411 through a second throttling component 920, and the second port is in communication with the inlet b of the ejector compressor 600.

[0027] The air conditioner outdoor unit is applied to an air conditioner, such as Figure 1As shown, when the air conditioner is in heating operation, the refrigerant flow direction is (at this time, the first ports are all inlets, and the second ports are all outlets): the outlet a of the ejector compressor 600 - the indoor heat exchanger 100 - the primary main line 411 - the secondary main line 511 - the outdoor heat exchanger 940 - the inlet b of the ejector compressor 600. After the high-temperature and high-pressure gaseous refrigerant compressed by the ejector compressor 600 flows to the indoor heat exchanger 100, the gaseous refrigerant is liquefied and released heat through the indoor heat exchanger 100, reaches the outdoor heat exchanger 940 through the primary main line 411 and the secondary main line 511, is vaporized and absorbs heat through the outdoor heat exchanger 940, and finally returns to the inlet of the ejector compressor 600. When the first throttling component 910 is opened, the primary auxiliary line 412 can take liquid from the second port of the secondary main line 511, and can also directly deliver gaseous refrigerant to the ejecting port c of the ejector compressor 600, so that the air conditioner operates in a primary ejector enhanced heating state. Since the liquid taking position of the primary auxiliary line 412 is located after the secondary main line 511, the density of the supercooled refrigerant becomes larger, so that the mass flow rate of the refrigerant at the first port of the primary auxiliary line 412 is increased, and the ejector enhanced heating capacity of the primary auxiliary line 412 is improved. When the second throttling component 920 is also opened, the secondary auxiliary line 512 can take liquid from the second port of the primary main line 411 and directly deliver part of the refrigerant to the inlet of the ejector compressor 600, so that the heat exchange load of the outdoor heat exchanger 940 is shared, the evaporation temperature is increased, the air conditioner operates in a secondary ejector enhanced heating state, and the temperature of the refrigerant returning to the inlet of the ejector compressor 600 is also ensured not to be too low, so that the suction pressure of the inlet of the ejector compressor 600 is increased, the operating range of low-temperature heating is expanded, and on the other hand, the condensing pressure is increased after the low-pressure refrigerant is worked by the ejector compressor 600, so that the heat exchange capacity of the indoor heat exchanger 100 is improved.

[0028] In some examples, as Figures 1 to 3 As shown, the primary heat exchanger assembly 400 includes: a primary heat exchanger 410, the primary heat exchanger 410 having a primary main line 411 and a primary auxiliary line 412; a mounting bracket 420, the primary heat exchanger 410 being fixed to the mounting bracket 420, the mounting bracket 420 being fixed to the partition plate 300; and a first damping pad 430, the first damping pad 430 being arranged between the mounting bracket 420 and the partition plate 300 and separating the mounting bracket 420 and the partition plate 300.

[0029] The first throttling component 910 will cause a larger vibration of the primary heat exchanger 410 and the pipeline connected thereto when the throttling is opened (the refrigerant passing through the first throttling component 910 is gas-liquid two-phase refrigerant, and the impact of the liquid refrigerant in the gas-liquid two-phase refrigerant is relatively large). The primary heat exchanger 410 is fixed on the mounting frame 420, the mounting frame 420 is fixed on the partition plate 300, and the first damping pad 430 is arranged between the mounting frame 420 and the partition plate 300 and separates the mounting frame 420 and the partition plate 300, so as to avoid the larger vibration of the primary heat exchanger 410 and the copper pipe connected thereto being transmitted to the partition plate 300, thereby causing the partition plate 300 to vibrate and generate noise and abnormal sound. This scheme also avoids the noise generated by the primary heat exchanger 410 and the copper pipe connected thereto being directly transmitted to the partition plate 300.

[0030] In some embodiments, the first damping pad 430 is provided with a first annular protruding rib, the partition plate 300 is provided with a first through hole, the first annular protruding rib is arranged in the first through hole and extends to the side of the partition plate 300 away from the mounting frame 420, the first bolt extends to the side of the partition plate 300 away from the mounting frame 420 in sequence through the mounting frame 420, the first damping pad 430 and the first annular protruding rib, and the first nut is located at the side of the partition plate 300 away from the mounting frame 420 and is screwed on the first bolt. The first nut is in abutment with the end face of the first annular protruding rib, and the first nut is spaced from the partition plate 300. The outer circumferential surface of the first annular protruding rib is provided with a first annular clamping groove near the first damping pad 430, and the hole wall of the first through hole is clamped into the first annular clamping groove.

[0031] The first damping pad 430 and the first annular protruding rib completely separate the mounting frame 420 and the partition plate 300, the primary heat exchanger 410 and the partition plate 300, the first bolt and the partition plate 300, and the first nut and the partition plate 300, so as to better prevent the larger vibration of the primary heat exchanger 410 and the copper pipe connected thereto from being transmitted to the partition plate 300, and thus the noise and abnormal sound generated by the partition plate 300 are smaller.

[0032] In some embodiments, as Figures 2 to 3As shown, the mounting rack 420 comprises: a first folded plate 421 having a first plate segment and a second plate segment connected together, the second plate segment is located on the side of the first plate segment away from the partition plate 300, the first plate segment is provided with a avoiding hole 422, the first damping pad 430 is provided with a support boss 432, the first plate segment is located on the side of the first damping pad 430 away from the partition plate 300, the support boss 432 passes through the avoiding hole 422 and extends to the side of the first plate segment away from the partition plate 300; and a second folded plate 423, the second folded plate 423 is assembled with the first folded plate 421 and encloses a limiting hole, the primary heat exchanger 410 is limited in the limiting hole and abuts against the table surface of the support boss 432, the support boss 432 can further reduce the vibration generated by the primary heat exchanger 410. Wherein, the lip of the primary heat exchanger 410 is tightly abutted on the side of the first damping pad 430 away from the partition plate 300 (outside the area of the support boss 432), so that the primary heat exchanger 410 is fixedly positioned in the limiting hole, avoiding loosening of the primary heat exchanger 410 in the limiting hole.

[0033] In some embodiments, as shown in Figures 2 to 3 As shown, one end of the second folded plate 423 near the second plate segment is connected with the second plate segment, the other end of the second folded plate 423 near the first plate segment is provided with a flange 424, the flange 424 abuts against the side of the first damping pad 430 away from the partition plate 300, the first damping pad 430 is provided with a second annular rib, the partition plate 300 is provided with a second through hole, the second annular rib passes through the second through hole and extends to the side of the partition plate 300 away from the mounting rack 420, the second bolt passes through the flange 424, the first damping pad 430 and the second annular rib in sequence and extends to the side of the partition plate 300 away from the mounting rack 420, the second nut is located on the side of the partition plate 300 away from the mounting rack 420 and is screwed on the second bolt, and the second nut abuts against the end face of the second annular rib and is spaced apart from the partition plate 300. This scheme can avoid the vibration on the primary heat exchanger 410 being transmitted to the partition plate 300 through the second folded plate 423, the second bolt and the second nut, so that the noise and abnormal sound generated by the vibration of the partition plate 300 are smaller. Wherein, the outer circumferential surface of the second annular rib near the first damping pad 430 is provided with a second annular clamping groove, and the hole wall of the second through hole is clamped into the second annular clamping groove.

[0034] In some embodiments, the partition plate 300 is provided with a plurality of reinforcing structures for improving the structural strength and rigidity of the partition plate 300 to avoid deformation of the partition plate 300. The plurality of reinforcing structures can include any one or more of bending structures and reinforcing ribs.

[0035] In some examples, as shown in Figure 1 , Figure 4 and Figure 5As shown, the secondary heat exchanger assembly 500 comprises: a secondary heat exchanger 510, the secondary heat exchanger 510 having a secondary main path 511 and a secondary auxiliary path 512; a fixed plate 520, the secondary heat exchanger 510 being fixedly arranged on the fixed plate 520, the fixed plate 520 being fixed in the mounting chamber; and a second shock-absorbing pad 530, the second shock-absorbing pad 530 being arranged between the fixed plate 520 and the secondary heat exchanger 510 and separating the fixed plate 520 and the secondary heat exchanger 510. The fixed plate 520 is provided with a plurality of reinforcing structures for improving the structural strength and rigidity of the fixed plate 520 to prevent the fixed plate 520 from deforming. The plurality of reinforcing structures can include any one or more of a bending structure and a reinforcing rib.

[0036] When the second throttling component 920 is opened, the secondary heat exchanger 510 and the connected pipeline will vibrate greatly due to the large impact of the liquid refrigerant in the gas-liquid two-phase refrigerant passing through the second throttling component 920. The secondary heat exchanger 510 is fixed on the fixed plate 520, and the fixed plate 520 is fixed in the mounting chamber. The second shock-absorbing pad 530 is arranged between the fixed plate 520 and the secondary heat exchanger 510 and separates the fixed plate 520 and the secondary heat exchanger 510, so as to prevent the large vibration of the secondary heat exchanger 510 and the connected copper pipe from being transmitted to the fixed plate 520, thereby causing the fixed plate 520 to vibrate greatly.

[0037] In some examples, as shown in Figure 1 、 Figures 6 to 9 As shown, the air conditioner outdoor unit further comprises: a gas-liquid separator 700, the gas-liquid separator 700 being fixed in the mounting chamber; a mounting plate 710, the mounting plate 710 being fixedly arranged on the top of the gas-liquid separator 700, and the fixed plate 520 being fixed to the mounting plate 710; and a third shock-absorbing pad 720, the third shock-absorbing pad 720 being arranged between the fixed plate 520 and the mounting plate 710 and separating the fixed plate 520 and the mounting plate 710, so as to prevent the vibration of the fixed plate 520 from being transmitted to the gas-liquid separator 700 through the mounting plate 710, thereby reducing the noise and abnormal sound generated by the gas-liquid separator 700. This scheme also prevents the noise generated by the secondary heat exchanger 510 and the connected copper pipe from being transmitted to the gas-liquid separator 700. The third shock-absorbing pad 720 is provided with a mounting column 721, the end of the mounting column 721 is provided with a limiting boss 722, a clamping groove is formed between the limiting boss 722, the mounting column 721 and the third shock-absorbing pad 720, the fixed plate 520 is provided with a fixing hole, the mounting column 721 is arranged in the fixing hole, the hole wall of the fixing hole is clamped in the clamping groove, and the limiting boss 722 prevents the mounting column 721 from being pulled out of the fixing hole. In addition, the mounting plate 710 further reinforces and fixes the top of the gas-liquid separator 700, so that the welding pipeline part of the top of the gas-liquid separator 700 is less likely to be opened due to shaking.

[0038] In some examples, as shown inFigure 1 As shown, the air conditioner further comprises a four-way valve 800, the inlet of the ejector compressor 600 is connected with the second port of the gas-liquid separator 700 through the liquid storage tank 930, the first port of the gas-liquid separator 700, the outlet of the ejector compressor 600, the outdoor heat exchanger 940 and the indoor heat exchanger 100 are connected through the four-way valve 800, and the second port of the secondary auxiliary path 512 is communicated with the first port of the gas-liquid separator 700. When the second throttling component 920 is opened, the secondary auxiliary path 512 takes liquid from the second port of the primary main path 411, and directly transports part of the refrigerant to the first port of the gas-liquid separator 700. After passing through the gas-liquid separator 700, the refrigerant flows from the second port of the gas-liquid separator 700 to the inlet of the ejector compressor 600.

[0039] In some embodiments, as shown in FIG. 1, the air conditioner further comprises a second throttling component 920, the second throttling component 920 is arranged between the second port of the primary main path 411 and the second port of the secondary auxiliary path 512, and the second throttling component 920 is arranged on the second throttling component 920. Figure 5 As shown, the secondary heat exchanger 510 is provided with a screw rod 513, the fixing plate 520 is provided with a third through hole, the second damping pad 530 is provided with a third annular convex rib 531, the third annular convex rib 531 is arranged in the third through hole and extends to the side of the fixing plate 520 away from the secondary heat exchanger 510, the screw rod 513 extends to the side of the fixing plate 520 away from the secondary heat exchanger 510 through the second damping pad 530 and the third annular convex rib 531 in sequence, the third nut is located at the side of the fixing plate 520 away from the secondary heat exchanger 510 and is screwed on the screw rod 513, and the third nut is in abutment with the end face of the third annular convex rib 531 and is spaced apart from the fixing plate 520. As shown in FIG. 1, the second damping pad 530 is provided with a third annular convex rib 531, and the third annular convex rib 531 is arranged in the third through hole of the fixing plate 520. Figure 6 As shown, the second damping pad 530 is further provided with a clamping column 532, the clamping column 532 passes through the fixing plate 520 and is clamped on the fixing plate 520, so as to realize the pre-fixing of the second damping pad 530 on the fixing plate 520.

[0040] This scheme completely separates the fixing plate 520 and the secondary heat exchanger 510, the fixing plate 520 and the screw rod 513, and the fixing plate 520 and the third nut by the second damping pad 530 and the third annular convex rib 531, and separates the fixing plate 520 and the mounting plate 710 by the third damping pad 720, so that the relatively large vibration and noise generated by the secondary heat exchanger 510 and the copper pipe connected thereto can be better prevented from being transmitted to the gas-liquid separator 700, and the noise and abnormal sound generated by the gas-liquid separator 700 are smaller.

[0041] In some embodiments, as shown in FIG. 1, the air conditioner further comprises a second throttling component 920, the second throttling component 920 is arranged between the second port of the primary main path 411 and the second port of the secondary auxiliary path 512, and the second throttling component 920 is arranged on the second throttling component 920. Figures 5 to 9As shown, the fixing plate 520 comprises a third plate segment 521 and a fourth plate segment 522 connected together, the fourth plate segment 522 is provided with a clamping portion, a positioning portion and a screwing portion, the mounting plate 710 is provided with a clamping matching portion, a positioning matching portion and a screwing matching portion, the clamping portion and the clamping matching portion are clamped and connected (such as the clamping connection mode of the clamping hook and the clamping hole), the positioning portion and the positioning matching portion are inserted and connected (such as the insertion connection mode of the positioning column and the positioning hole), the screwing portion and the screwing matching portion are screwed and connected (such as the screwing connection mode of the through hole and the screw hole), so as to realize the assembly of the mounting plate 710 and the fixing plate 520. After the clamping portion and the clamping matching portion are clamped and connected, and the positioning portion and the positioning matching portion are inserted and connected, the screwing portion and the screwing matching portion are aligned, and then the screwing portion and the screwing matching portion are connected through the screw.

[0042] As shown in Figure 4 and Figure 7 As shown, the third plate segment 521 is adjacent to the partition plate 300 and is provided with a separation shock pad 900 between the third plate segment 521 and the partition plate 300, and the secondary heat exchanger 510 and the second shock pad 530 are fixedly arranged on the third plate segment 521. The separation shock pad 900 separates the partition plate 300 and the fixing plate 520, so as to avoid the contact between the partition plate 300 and the fixing plate 520 and the vibration and abnormal sound generated by the contact when the air conditioner is running. The separation shock pad 900 is provided as foamed sponge, and the foamed sponge and the secondary heat exchanger 510 are located on both sides of the fixing plate 520.

[0043] Of course, the secondary heat exchanger 510 can also be fixed on the fixing plate 520 through a mounting bracket, and the structure of the mounting bracket is substantially the same as the structure of the mounting bracket for fixing the primary heat exchanger 410. The second shock pad 530 is arranged between the first folded plate of the mounting bracket and the fixing plate 520, and the purpose of the mounting bracket can also be achieved, and the design idea is not deviated from the design idea of the utility model, and thus will not be described here again, and should also belong to the protection range of the application.

[0044] In summary, the technical scheme provided by the embodiment of the present application, the air conditioner outdoor unit is applied to an air conditioner, and the refrigerant flow direction of the air conditioner during heating operation is: the outlet of the ejector compressor-inlet of the indoor heat exchanger-first main path-second main path-outdoor heat exchanger-inlet of the ejector compressor. After the high-temperature and high-pressure gaseous refrigerant compressed by the ejector compressor flows to the indoor heat exchanger, the gaseous refrigerant is liquefied and released heat through the indoor heat exchanger, reaches the outdoor heat exchanger through the first main path and the second main path, is vaporized and absorbs heat through the outdoor heat exchanger, and finally returns to the inlet of the ejector compressor. When the first throttling component is opened, the first auxiliary path can take liquid from the second port of the second main path, and can also directly deliver gaseous refrigerant to the ejector port of the ejector compressor, so that the air conditioner operates in a first-stage ejector enhanced heating state. Since the liquid taking position of the first auxiliary path is located after the second main path, the density of the supercooled refrigerant becomes larger, so the mass flow rate of the refrigerant at the first port of the first auxiliary path is increased, and the ejector enhanced heating capacity of the first auxiliary path is improved. When the second throttling component is also opened, the second auxiliary path can take liquid from the second port of the first main path, and directly deliver part of the refrigerant to the inlet of the ejector compressor, so that the heat exchange load of the outdoor heat exchanger can be shared, and the evaporation temperature can be increased, so that the air conditioner operates in a second-stage ejector enhanced heating state, and the temperature of the refrigerant returning to the inlet of the ejector compressor can be ensured not to be too low, so that the suction pressure of the inlet of the ejector compressor can be increased, the operating range of low-temperature heating can be expanded, and on the other hand, the condensing pressure can be increased after the low-pressure refrigerant does work through the ejector compressor, so that the heat exchange capacity of the indoor side can be improved.

[0045] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0046] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features.

[0047] In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly and specifically limited.

[0048] In the present application, unless specifically defined otherwise, the terms "mounting", "connected", "connecting", "fixed", "fixedly connected" and the like should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrated; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected via an intermediate medium; can be internal communication of two elements, or interaction between two elements, unless specifically defined otherwise. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0049] In the present application, unless specifically defined otherwise, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0050] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or features of different embodiments or examples described in the present application without contradiction.

[0051] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. An air conditioner outdoor unit, characterized by comprising: The application relates to an air conditioner, which comprises a shell, a partition plate arranged in the shell and separating the interior of the shell into a heat exchange chamber and a mounting chamber, a primary heat exchanger assembly, a secondary heat exchanger assembly and an ejection heat compressor fixed in the mounting chamber, and an outdoor heat exchanger fixed in the heat exchange chamber. The primary heat exchanger assembly has a primary main path and a primary auxiliary path, the secondary heat exchanger assembly has a secondary main path and a secondary auxiliary path, the first port of the primary main path is arranged to be in communication with the indoor heat exchanger, the second port of the primary main path is in communication with the first port of the secondary main path, the second port of the secondary main path is in communication with the outdoor heat exchanger, the first port of the primary auxiliary path is in communication with the second port of the secondary main path through a first throttling component, and the second port of the primary auxiliary path is in communication with the ejection port of the ejection heat compressor, the first port of the secondary auxiliary path is in communication with the second port of the primary main path through a second throttling component, and the second port of the secondary auxiliary path is in communication with the inlet of the ejection heat compressor. The primary heat exchanger assembly comprises a primary heat exchanger having the primary main path and the primary auxiliary path, a mounting frame, the primary heat exchanger is fixed on the mounting frame, the mounting frame is fixed on the partition plate, and a first damping pad is arranged between the mounting frame and the partition plate and separates the mounting frame and the partition plate. The first damping pad is provided with a first annular reinforcing rib, the partition plate is provided with a first through hole, the first annular reinforcing rib is arranged in the first through hole and extends to the side of the partition plate away from the mounting frame, a first bolt extends to the side of the partition plate away from the mounting frame through the mounting frame, the first damping pad and the first annular reinforcing rib in sequence, a first nut is located on the side of the partition plate away from the mounting frame and is screwed on the first bolt, and the first nut is in abutment with the end face of the first annular reinforcing rib and is spaced from the partition plate. The mounting frame comprises a first folded plate having a first plate segment and a second plate segment, the second plate segment is located on the side of the first plate segment away from the partition plate, the first plate segment is provided with an avoiding hole, the first damping pad is provided with a supporting boss, the first plate segment is arranged on the side of the first damping pad away from the partition plate, and the supporting boss extends to the side of the first plate segment away from the partition plate through the avoiding hole, and a second folded plate is assembled with the first folded plate and encloses a limiting hole, the primary heat exchanger is limited in the limiting hole and abuts against the table face of the supporting boss. ​ 2. The air conditioner outdoor unit according to claim 1, characterized by ​ ​ ​ ​ 3. The air conditioner outdoor unit according to claim 2, characterized by ​ 4. The air conditioner outdoor unit according to claim 2, wherein ​ ​ ​ 5. The air conditioner outdoor unit according to claim 4, wherein An end of the second folded plate adjacent to the second plate segment is connected to the second plate segment by a plug-in connection, an end of the second folded plate adjacent to the first plate segment is provided with a flange, the flange abuts a side of the first shock-absorbing pad opposite to the partition plate, the first shock-absorbing pad is provided with a second annular rib, the partition plate is provided with a second through hole, the second annular rib is arranged in the second through hole and extends to a side of the partition plate opposite to the mounting rack, a second bolt extends to the side of the partition plate opposite to the mounting rack by sequentially penetrating the flange, the first shock-absorbing pad and the second annular rib, a second nut is located on the side of the partition plate opposite to the mounting rack and is screwed on the second bolt, and the second nut abuts an end surface of the second annular rib and is spaced apart from the partition plate.

6. The air conditioner outdoor unit according to any one of claims 1 to 5, characterized by, The secondary heat exchanger assembly comprises: a secondary heat exchanger having the secondary main path and the secondary auxiliary path; a fixed plate, the secondary heat exchanger being fixed to the fixed plate, the fixed plate being fixed in the mounting chamber; and a second shock-absorbing pad arranged between the fixed plate and the secondary heat exchanger and separating the fixed plate and the secondary heat exchanger.

7. The air conditioner outdoor unit according to claim 6, wherein The secondary heat exchanger is provided with a screw rod, the fixed plate is provided with a third through hole, the second shock-absorbing pad is provided with a third annular rib, the third annular rib is arranged in the third through hole and extends to a side of the fixed plate opposite to the secondary heat exchanger, the screw rod extends to the side of the fixed plate opposite to the secondary heat exchanger by sequentially penetrating the second shock-absorbing pad and the third annular rib, a third nut is located on the side of the fixed plate opposite to the secondary heat exchanger and is screwed on the screw rod, and the third nut abuts an end surface of the third annular rib and is spaced apart from the fixed plate.

8. The air conditioner outdoor unit according to claim 6, wherein Further comprising: a gas-liquid separator fixed in the mounting chamber; a mounting plate arranged on a top of the gas-liquid separator, the fixed plate being fixed to the mounting plate; and a third shock-absorbing pad arranged between the fixed plate and the mounting plate and separating the fixed plate and the mounting plate.

9. The air conditioning outdoor unit according to claim 8, characterized in that, The fixed plate comprises a third plate segment and a fourth plate segment, the fourth plate segment is provided with a clamping portion, a positioning portion and a screwing portion, the mounting plate is provided with a clamping matching portion, a positioning matching portion and a screwing matching portion, the clamping portion is connected to the clamping matching portion by a clamping connection, the positioning portion is connected to the positioning matching portion by a plug-in connection, the screwing portion is connected to the screwing matching portion by a screwing connection, the third plate segment is adjacent to the partition plate and is provided with an isolation shock-absorbing pad between the third plate segment and the partition plate, and the secondary heat exchanger and the second shock-absorbing pad are fixed to the third plate segment.

10. An air conditioner characterized by comprising: The air conditioner outdoor unit comprises any one of the air conditioner outdoor units according to claims 1 to 9.

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