Waste heat recovery energy-saving combined air conditioner

By setting up a heat recovery component in the air conditioner external unit, the heat generated by the air compressor is recycled and utilized, which solves the problem of heat loss in traditional air conditioners, and reduces energy consumption and saves energy.

CN119642382AInactive Publication Date: 2025-03-18ANHUI TENGYUE INTELLIGENT TECH CO LTD
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Patent Information

Application Number
CN202411663803.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-20
Publication Date
2025-03-18
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The heat generated by traditional air conditioners during heating cannot be recycled again, resulting in direct heat loss to the outdoor environment and increasing energy consumption.

Method used

A waste heat recovery energy-saving combined air conditioner is designed. By setting up a heat recovery component in the air conditioner external unit, the airflow discharged from the heat dissipation component brings heat from the air compressor surface into the air outlet duct and blows it back into the room through the sub-shell to realize the recovery and utilization of heat.

Benefits of technology

By recycling the heat generated during operation of the air compressor, it assists in increasing the indoor temperature, reducing the energy consumption of the air conditioner, and achieving the effect of saving energy.

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Abstract

The invention discloses a waste heat recovery energy-saving combined air conditioner, and relates to the technical field of air conditioner waste heat recovery, the waste heat recovery energy-saving combined air conditioner comprises an air conditioner indoor unit and an air conditioner outdoor unit, the air conditioner indoor unit is fixedly installed indoors, the air conditioner outdoor unit is fixedly installed outdoors, and a hose is fixedly communicated between the air conditioner indoor unit and the air conditioner outdoor unit; and an air compressor is fixedly mounted in the air conditioner outdoor unit. The heat energy recovery assembly is independently arranged to recover heat generated during operation of the air compressor, in the exhaust process of the heat dissipation assembly, part of airflow can be blown into the positioning pipe and then enters the independent box body along the air inlet pipe, heat on the surface of the air compressor is carried into the air outlet pipe, and therefore the heat dissipation efficiency of the air compressor is improved. And finally, the air is blown back into a room from the auxiliary shell, so that the heat of the air compressor is recycled, the indoor temperature is increased in an auxiliary manner, the energy consumption of the air conditioner is reduced, and the effect of saving energy is achieved.
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Description

Technical Field

[0001] The invention relates to the technical field of waste heat recovery of air conditioners, and in particular to a waste heat recovery energy-saving combined air conditioner. Background Art

[0002] Air conditioning, or air conditioner, refers to a device that uses artificial means to adjust and control the temperature, humidity, flow rate and other parameters of the ambient air in a building or structure.

[0003] For example, the "A waste heat recovery energy-saving combined air conditioner" with publication number: CN111189129A includes a box body, the interior of the box body includes a fresh air box, a return air box, a fan box, and a cooling and humidifying box, an electric control box is fixedly provided on the outside of the box body, a fresh air inlet is provided on the outside of the fresh air box, and a first filter and a fresh air preheating heat exchanger are provided on the inside of the fresh air box, a return air inlet is provided on the outside of the return air box, and a second filter and a steam heater are provided on the inside of the return air box, a centrifugal fan is provided on the inside of the fan box, an air supply outlet is provided on the outside of the cooling and humidifying box, and a cooling coil and a dry steam humidifier are provided on the inside of the cooling and humidifying box.

[0004] However, in the prior art, when the air conditioner is heating, mainly in cold weather, since the outdoor temperature is lower than the indoor temperature, the compressor needs to operate at a higher power to obtain enough heat input into the room. Therefore, the overall power consumption will be higher. In this process, the operation of the compressor will also generate a lot of heat, and traditional air conditioners cannot recycle this heat, causing the heat to be directly lost to the outdoor environment. Summary of the invention

[0005] The purpose of the present invention is to provide a waste heat recovery energy-saving combined air conditioner to solve the problem raised in the above background technology that the operation of the compressor also generates a large amount of heat, and the traditional air conditioner cannot recover this heat for a second time, causing the heat to be directly lost to the outdoor environment.

[0006] To achieve the above object, the present invention provides the following technical solutions: a waste heat recovery energy-saving combined air conditioner, comprising an air conditioner indoor unit and an air conditioner outdoor unit, the air conditioner indoor unit is fixedly installed indoors, the air conditioner outdoor unit is fixedly installed outdoors, a hose is fixedly connected between the air conditioner indoor unit and the air conditioner outdoor unit, an air compressor is fixedly installed inside the air conditioner outdoor unit, a first connector and a second connector are fixedly connected at the bottom of the air compressor, a heat dissipation component is fixedly installed inside the air conditioner outdoor unit, and a heat energy recovery component is fixedly installed inside the air conditioner outdoor unit; The heat energy recovery component includes an independent box body, an air inlet pipe and an air outlet pipe, the air compressor is located inside the independent box body, a partition plate is fixedly installed on the inner wall of the independent box body, the partition plate is fixedly connected to the outer shell of the air compressor, one end of the air inlet pipe is fixedly connected to the air outlet of the air-conditioning outdoor unit, the other end of the air inlet pipe is fixedly connected to the bottom of the independent box body, one end of the air outlet pipe is fixedly connected to the top of the independent box body, the other end of the air outlet pipe is fixedly connected to a sub-shell, the sub-shell is fixedly installed on the top of the air-conditioning indoor unit, and a protective net is fixedly installed on one side of the sub-shell body.

[0007] Preferably, a first connector is fixedly installed at the junction of the independent box and the air inlet pipe, and a second connector is fixedly installed at the junction of the independent box and the air outlet pipe, and the axes of the first connector, the air compressor and the second connector coincide with each other.

[0008] Preferably, a threaded connector is fixedly installed at one end of the air inlet pipe, one end of the threaded connector is threadedly connected to a positioning tube, a first filter is fixedly installed inside the air conditioner outdoor unit, and one end of the positioning tube is fixedly connected to the edge of the first filter.

[0009] Preferably, a second filter screen is fixedly installed at the junction of the positioning tube and the first filter screen, an electric cylinder is fixedly installed on one side of the second filter screen, and the electric cylinder is located inside the positioning tube.

[0010] Preferably, a docking plate is fixedly installed at the junction of the electric cylinder and the second filter screen, the electric cylinder is located at the center of the second filter screen, and one end of the electric cylinder piston rod is fixedly connected to a blocking plate.

[0011] Preferably, a thickening block is fixedly mounted on the inner wall of the positioning tube, and the thickening block is annular, the thickening block is slidably connected to the edge of the sealing plate, and an extension plate is fixedly mounted at the junction of the thickening block and the sealing plate.

[0012] Preferably, guide ridges are fixedly mounted on both sides of the extension plate, one end of the guide ridge is fixedly connected to a blocking plate, the blocking plate is located at a corner of the extension plate, and the blocking plate and the guide ridge are perpendicular to each other.

[0013] Preferably, an anti-slip plate is fixedly connected to one side of the blocking plate, a groove is provided between the anti-slip plate and the guide convex strip, and the anti-slip plate is slidably connected to the sealing plate.

[0014] Preferably, a horizontal plate is fixedly mounted on the inner wall of the second connector, a tension spring is fixedly connected to the upper surface of the horizontal plate, and a covering plate is fixedly connected to the other end of the tension spring.

[0015] Preferably, a docking block is fixedly connected to the bottom of the cover plate, and a through hole is opened at the center of the horizontal plate, and the shape of the through hole is adapted to the shape of the docking block.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, a heat recovery component is separately provided to recover the heat generated when the air compressor is in operation. In the process of compressing the refrigerant into high-pressure gas, the air compressor consumes energy, resulting in part of the energy being converted into heat. In addition, friction and the passage of electric current will also generate a certain amount of heat. Therefore, when the air conditioner is running, the surface temperature of the air compressor is often higher. During the exhaust process of the heat dissipation component, a part of the air flow can be blown into the positioning pipe, and then enter the interior of the independent box along the air inlet pipe, carrying the heat on the surface of the air compressor into the air outlet pipe, and finally blowing it back into the room from the sub-shell, thereby completing the recovery of the heat of the air compressor, thereby assisting in raising the indoor temperature, thereby reducing the energy consumption of the air conditioner and playing a role in saving energy.

[0017] 2. In the present invention, a thickening block and an electric cylinder are arranged in the positioning tube, and a sealing plate at the end of the piston rod of the electric cylinder is connected to the thickening block, which is mainly used to seal the positioning tube. When heat energy is recovered, the sealing plate is mainly used to control the flow of air. When the sealing plate and the thickening block are spliced ​​together, the airflow generated by the air-conditioning outdoor unit will not enter the air inlet duct. When the sealing plate moves to the blocking plate, the airflow can enter the air inlet duct. This method is mainly used to avoid the problem of transferring heat back to the room during the refrigeration process.

[0018] 3. In the present invention, an independent box is provided in the air conditioner outdoor unit to determine the position of the air compressor, and a partition plate is additionally provided inside the independent box. The partition plate is used to improve the stability of the air compressor and to separate an area inside the independent box for collecting the heat generated during the operation of the air compressor and ensuring that the heat can be reused. When there is no need to recover heat energy, the air outlet pipe can be pulled out from the sub-shell and pointed to the outdoors to allow the heat of the air compressor to be discharged normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of a waste heat recovery energy-saving combined air conditioner of the present invention; Figure 2 It is a schematic diagram of the plan structure of a waste heat recovery energy-saving combined air conditioner of the present invention; Figure 3 A schematic diagram of the connection and structure of a heat recovery component and a sub-shell of a waste heat recovery energy-saving combined air conditioner of the present invention; Figure 4It is a schematic diagram of the internal planar structure of a positioning tube of a waste heat recovery energy-saving combined air conditioner of the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the structure of part A in the middle; Figure 6 This is a schematic diagram of the internal structure of the air conditioner outdoor unit of a waste heat recovery energy-saving combined air conditioner of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure of part B.

[0020] In the figure: 1. Indoor unit of air conditioner; 2. Outdoor unit of air conditioner; 3. Hose; 4. Heat recovery component; 5. Sub-shell; 6. Protective net; 7. Heat dissipation component; 8. First filter; 9. Air compressor; 10. First connector; 11. Second connector; 41. Independent box; 42. Second connector; 43. Air outlet duct; 44. First connector; 45. Air inlet duct; 46. Positioning tube; 47. Second filter; 48. Electric cylinder; 49. Docking plate; 410. Sealing plate; 411. Thickening block; 412. Threaded connector; 413. Extension plate; 414. Guide ridge; 415. Blocking plate; 416. Anti-slip plate; 417. Groove; 418. Partition plate; 419. Horizontal plate; 420. Tension spring; 421. Cover plate; 422. Docking block; 423. Through hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example 1: Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown: a waste heat recovery energy-saving combined air conditioner, comprising an air conditioner indoor unit 1 and an air conditioner outdoor unit 2, the air conditioner indoor unit 1 is fixedly installed indoors, the air conditioner outdoor unit 2 is fixedly installed outdoors, a hose 3 is fixedly connected between the air conditioner indoor unit 1 and the air conditioner outdoor unit 2, an air compressor 9 is fixedly installed inside the air conditioner outdoor unit 2, a first connector 10 and a second connector 11 are fixedly connected at the bottom of the air compressor 9, a heat dissipation component 7 is fixedly installed inside the air conditioner outdoor unit 2, and a heat energy recovery component 4 is fixedly installed inside the air conditioner outdoor unit 2; The heat energy recovery component 4 includes an independent box body 41, an air inlet pipe 45 and an air outlet pipe 43. The air compressor 9 is located inside the independent box body 41. A partition plate 418 is fixedly installed on the inner wall of the independent box body 41. The partition plate 418 is fixedly connected to the outer shell of the air compressor 9. One end of the air inlet pipe 45 is fixedly connected to the air outlet of the air-conditioning outdoor unit 2, and the other end of the air inlet pipe 45 is fixedly connected to the bottom of the independent box body 41. One end of the air outlet pipe 43 is fixedly connected to the top of the independent box body 41, and the other end of the air outlet pipe 43 is fixedly connected to the sub-shell 5. The sub-shell 5 is fixedly installed on the top of the air-conditioning indoor unit 1, and a protective net 6 is fixedly installed on one side of the sub-shell 5. A first connector 44 is fixedly installed at the junction of the independent box body 41 and the air inlet pipe 45, and a second connector 42 is fixedly installed at the junction of the independent box body 41 and the air outlet pipe 43. The axes of the first connector 44, the air compressor 9 and the second connector 42 coincide.

[0023] In this embodiment, the air conditioner indoor unit 1 is used to discharge cold air and hot air, and the air compressor 9 inside the air conditioner outdoor unit 2 is used for cooling and heating. The cold air and hot air generated by the air conditioner indoor unit 1 are transmitted to the air conditioner indoor unit 1 through the hose 3. The first connector 10 and the second connector 11 are used to transport refrigerant. The air conditioner indoor unit 1, the air conditioner outdoor unit 2 and the air compressor 9 are all existing technologies and will not be described in detail here. During the operation of the air compressor 9, a lot of heat will be generated, and the heat recovery component 4 can recover the heat from the air compressor 9, thereby achieving the effect of energy saving and consumption reduction. During the recovery process, part of the airflow generated by the operation of the heat dissipation component 7 will enter the air inlet pipe 45; The air inlet pipe 45 then pours the airflow into the independent box 41. A partition plate 418 is provided in the independent box 41 to separate the area where the air compressor 9 is located. The heat generated by the operation of the air compressor 9 is brought into the air outlet pipe 43 by the flow of the airflow, and finally discharged from the sub-shell 5 on the air conditioner indoor unit 1. A protective net 6 is provided on the sub-shell 5 to determine the air outlet. This structure can recycle the heat generated by the operation of the air compressor 9, so as to help increase the indoor temperature, thereby reducing the energy consumption of the air conditioner and playing a role in saving energy. The air outlet pipe 43 is connected to the independent box body 41 through the second connector 42, and the air inlet pipe 45 is connected to the independent box body 41 through the first connector 44, so as to ensure the structural stability of each pipe.

[0024] Embodiment 2: According to Figure 3 , Figure 4 and Figure 5As shown, a threaded connector 412 is fixedly installed at one end of the air inlet pipe 45, and a positioning pipe 46 is threadedly connected to one end of the threaded connector 412. A first filter 8 is fixedly installed inside the air conditioner outdoor unit 2, and one end of the positioning pipe 46 is fixedly connected to the edge of the first filter 8. A second filter 47 is fixedly installed at the intersection of the positioning pipe 46 and the first filter 8. An electric cylinder 48 is fixedly installed on one side of the second filter 47. The electric cylinder 48 is located inside the positioning pipe 46. A docking plate 49 is fixedly installed at the intersection of the electric cylinder 48 and the second filter 47. The electric cylinder 48 is located at the center of the second filter 47. One end of the piston rod of the electric cylinder 48 is fixedly connected to a blocking plate 410. The inner portion of the positioning pipe 46 is fixedly connected to the outer portion of the air conditioner outdoor unit 2. A thickening block 411 is fixedly installed on the wall, and the thickening block 411 is annular. The thickening block 411 is slidably connected to the edge of the sealing plate 410. An extension plate 413 is fixedly installed at the junction of the thickening block 411 and the sealing plate 410. Guide ridges 414 are fixedly installed on both sides of the extension plate 413. One end of the guide ridge 414 is fixedly connected to a blocking plate 415, which is located at the corner of the extension plate 413. The blocking plate 415 and the guide ridge 414 are perpendicular to each other. An anti-slip plate 416 is fixedly connected to one side of the blocking plate 415, a groove 417 is provided between the anti-slip plate 416 and the guide ridge 414, and the anti-slip plate 416 is slidably connected to the sealing plate 410.

[0025] In this embodiment, the air inlet pipe 45 is connected to the positioning pipe 46 through a threaded connector 412. The positioning pipe 46 is installed at the edge of the first filter 8, which does not affect normal heat dissipation and can obtain the airflow discharged by the heat dissipation component 7. The presence of the first filter 8 and the second filter 47 can ensure that dust does not enter the air inlet pipe 45. An electric cylinder 48 is provided in the positioning tube 46, and the electric cylinder 48 is installed on the second filter screen 47 through a docking plate 49. The blocking plate 410 at the end of the piston rod is connected to the thickening block 411, which is used to block the positioning tube 46. The connection terminal is connected to the air conditioner outdoor unit 2, which is specifically controlled by the air conditioner remote control. When the piston rod is extended, it pushes the blocking plate 410 to move along the direction of the guide convex strip 414 on the extension plate 413; The moving route of the blocking plate 410 is restricted by the anti-slip plate 416 and the guide ridge 414. When the blocking plate 410 moves to the blocking plate 415, the entire positioning tube 46 is in a through state, and the airflow can enter the air inlet pipe 45 normally. The guide ridge 414, the anti-slip plate 416 and the groove 417 on the extension plate 413 can limit the moving route of the blocking plate 410 to prevent the problem of misalignment of the blocking plate 410.

[0026] Embodiment 3: According to Figure 6 and Figure 7As shown, a horizontal plate 419 is fixedly installed on the inner wall of the second connector 42, a tension spring 420 is fixedly connected to the upper surface of the horizontal plate 419, a covering plate 421 is fixedly connected to the other end of the tension spring 420, a docking block 422 is fixedly connected to the bottom of the covering plate 421, and a through hole 423 is opened at the center of the horizontal plate 419, and the shape of the through hole 423 is adapted to the shape of the docking block 422.

[0027] In this embodiment, the through hole 423 in the horizontal plate 419 is used to accommodate the docking block 422. When the air conditioner is not in operation, there is no airflow blowing the cover plate 421. At this time, the docking block 422 will be embedded in the through hole 423 under the action of the tension spring 420 to prevent the air from reversely entering the air outlet duct 43. When the waste heat is recovered, the flow of air will blow the cover plate 421 and take the docking block 422 away from the through hole 423, so that the air can circulate normally.

[0028] The use method and working principle of the device: the air compressor 9 generates heat during operation, and the operation of the heat dissipation component 7 blows air into the positioning tube 46. The presence of the first filter 8 and the second filter 47 can ensure that dust does not enter the air inlet pipe 45. In the initial state, the blocking plate 410 is connected to the thickening block 411, and the entire positioning tube 46 is in a blocked state. The user opens the electric cylinder 48 through the air conditioner remote control; When the piston rod extends, it pushes the blocking plate 410 to move along the direction of the guide ridge 414 on the extension plate 413 until the blocking plate 410 moves to the blocking plate 415 and stops operating. At this time, the blocking plate 410 is separated from the thickening block 411, so that the positioning tube 46 becomes connected, and air can normally enter the independent box body 41; A partition plate 418 is provided in the independent box 41 to separate the area where the air compressor 9 is located. The heat generated by the operation of the air compressor 9 is brought into the air outlet 43 by the flow of airflow, and finally discharged from the auxiliary housing 5 on the air conditioner indoor unit 1. By recycling the heat generated by the operation of the air compressor 9, the indoor temperature is helped to be increased, thereby reducing the energy consumption of the air conditioner and playing a role in saving energy. When there is no need to recover heat energy, the air outlet pipe 43 can be pulled out from the sub-shell 5 and pointed to the outdoors to allow the heat of the air compressor 9 to be discharged normally. When the air conditioner is not in operation, there is no airflow blowing the cover plate 421. At this time, the docking block 422 will be embedded in the through hole 423 under the action of the tension spring 420 to prevent the air from reversely entering the air outlet pipe 43. When the waste heat is recovered, the flow of air will blow the cover plate 421 and move the docking block 422 away from the through hole 423, so that the air can circulate normally.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A waste heat recovery energy-saving combined air conditioner, comprising an air conditioner indoor unit (1) and an air conditioner outdoor unit (2), wherein the air conditioner indoor unit (1) is fixedly installed indoors, and the air conditioner outdoor unit (2) is fixedly installed outdoors, a hose (3) is fixedly connected between the air conditioner indoor unit (1) and the air conditioner outdoor unit (2), an air compressor (9) is fixedly installed inside the air conditioner outdoor unit (2), a first connector (10) and a second connector (11) are fixedly connected at the bottom of the air compressor (9), and a heat dissipation component (7) is fixedly installed inside the air conditioner outdoor unit (2), characterized in that: A heat recovery component (4) is fixedly installed inside the air conditioner outdoor unit (2); The heat energy recovery component (4) comprises an independent box (41), an air inlet pipe (45) and an air outlet pipe (43); the air compressor (9) is located inside the independent box (41); a partition plate (418) is fixedly mounted on the inner wall of the independent box (41); the partition plate (418) is fixedly connected to the outer shell of the air compressor (9); one end of the air inlet pipe (45) is fixedly connected to the air outlet of the air conditioner outdoor unit (2); the other end of the air inlet pipe (45) is fixedly connected to the bottom of the independent box (41); one end of the air outlet pipe (43) is fixedly connected to the top of the independent box (41); the other end of the air outlet pipe (43) is fixedly connected to a sub-shell (5); the sub-shell (5) is fixedly mounted on the top of the air conditioner indoor unit (1); and a protective net (6) is fixedly mounted on one side of the sub-shell (5).

2. The waste heat recovery energy-saving combined air conditioner according to claim 1, characterized in that: A first connector (44) is fixedly installed at the intersection of the independent box (41) and the air inlet pipe (45), and a second connector (42) is fixedly installed at the intersection of the independent box (41) and the air outlet pipe (43), and the axes of the first connector (44), the air compressor (9) and the second connector (42) coincide with each other.

3. The waste heat recovery energy-saving combined air conditioner according to claim 1, characterized in that: A threaded connector (412) is fixedly mounted on one end of the air inlet pipe (45), one end of the threaded connector (412) is threadedly connected to a positioning pipe (46), a first filter (8) is fixedly mounted inside the air conditioner outdoor unit (2), and one end of the positioning pipe (46) is fixedly connected to the edge of the first filter (8).

4. The waste heat recovery energy-saving combined air conditioner according to claim 3, characterized in that: A second filter screen (47) is fixedly mounted at the junction of the positioning tube (46) and the first filter screen (8), and an electric cylinder (48) is fixedly mounted on one side of the second filter screen (47), wherein the electric cylinder (48) is located inside the positioning tube (46).

5. The waste heat recovery energy-saving combined air conditioner according to claim 4, characterized in that: A docking plate (49) is fixedly mounted at the junction of the electric cylinder (48) and the second filter screen (47); the electric cylinder (48) is located at the center of the second filter screen (47); and a blocking plate (410) is fixedly connected to one end of the piston rod of the electric cylinder (48).

6. The waste heat recovery energy-saving combined air conditioner according to claim 3, characterized in that: A thickening block (411) is fixedly mounted on the inner wall of the positioning tube (46), and the thickening block (411) is annular. The thickening block (411) is slidably connected to the edge of the blocking plate (410), and an extension plate (413) is fixedly mounted at the junction of the thickening block (411) and the blocking plate (410).

7. The waste heat recovery energy-saving combined air conditioner according to claim 6, characterized in that: Guide convex strips (414) are fixedly mounted on both sides of the extension plate (413); one end of the guide convex strip (414) is fixedly connected to a blocking plate (415); the blocking plate (415) is located at a corner of the extension plate (413); the blocking plate (415) and the guide convex strip (414) are perpendicular to each other.

8. The waste heat recovery energy-saving combined air conditioner according to claim 7, characterized in that: An anti-slip plate (416) is fixedly connected to one side of the blocking plate (415); a groove (417) is provided between the anti-slip plate (416) and the guide convex strip (414); and the anti-slip plate (416) is slidably connected to the blocking plate (410).

9. The waste heat recovery energy-saving combined air conditioner according to claim 2, characterized in that: A horizontal plate (419) is fixedly mounted on the inner wall of the second joint (42), a tension spring (420) is fixedly connected to the upper surface of the horizontal plate (419), and a covering plate (421) is fixedly connected to the other end of the tension spring (420).

10. The waste heat recovery energy-saving combined air conditioner according to claim 9, characterized in that: A docking block (422) is fixedly connected to the bottom of the cover plate (421), and a through hole (423) is provided at the center of the horizontal plate (419), the shape of the through hole (423) being compatible with the shape of the docking block (422).

Citation Information

Patent Citations

  • Waste heat recovery energy-saving combined type air conditioner

    CN111189129A