A miniature air conditioner for elevators
By designing a compact, integrated micro air conditioner that combines a condenser and an evaporator, and using a water collection tray to collect condensate and spray it onto the evaporator, the problem of large size of elevator air conditioning equipment is solved, achieving miniaturization and energy-saving heat dissipation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 上海合和实业有限公司
- Filing Date
- 2025-05-13
- Publication Date
- 2026-06-30
AI Technical Summary
Existing elevator air conditioning equipment is bulky and difficult to reduce in size, affecting the utilization of interior space and comfort.
Design a compact, integrated micro air conditioner, including a base, compressor, condenser, fan, and evaporator, all integrated in a rectangular casing. A condensate collection tray collects condensate and sprays it onto the evaporator via a water pump. Heat exchange is performed using the fan. The condenser and evaporator are separated by a partition. The centrifugal air outlet of the fan is connected to the air outlet. The condenser is tilted to increase the air-facing area.
This technology enables the miniaturization and lightweighting of air conditioners, improves the space utilization inside elevators, enhances heat dissipation, and offers energy-saving advantages.
Smart Images

Figure CN224434587U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air conditioning technology, specifically a miniature air conditioner for elevators. Background Technology
[0002] As people's living standards improve, their requirements for air quality inside elevator cars are becoming increasingly stringent. Currently, to enhance passenger comfort, elevator-specific air conditioners are often installed at the top of the elevator car to regulate the temperature. Alternatively, exhaust fans are installed at the top to ventilate the enclosed space and improve air quality. Given the limited space in elevators, effectively minimizing the size of the air conditioner is a crucial consideration. Utility Model Content
[0003] The purpose of this invention is to provide a miniature air conditioner for elevators to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a miniature air conditioner for elevators, comprising a base, a compressor, a condenser, a fan, and an evaporator. The base has a rectangular structure with a rectangular outer shell mounted on it. The compressor, condenser, fan, and evaporator are respectively mounted on the base. The fan has a centrifugal impeller and an axial impeller. A water collection tray is formed inside the base to collect condensate generated during operation. A miniature water pump is installed in the water collection tray. The evaporator has a symmetrical arc-shaped structure. The lower end of the evaporator is placed in the water collection tray, and an arc-shaped water trough is installed on the top of the evaporator. Several water flow holes are provided along the length of the side of the water trough. The output end of the water pump is connected to the water trough through a pipe. A transverse partition is provided in the outer shell to separate the condenser and the evaporator. The outer shell has an air outlet and an air return outlet on opposite sides.
[0005] Preferably, the outer casing has mesh holes on one side of the evaporator, and the axial flow impeller of the fan is located inside the evaporator.
[0006] Preferably, the centrifugal air outlet of the fan is connected to the air outlet, and the condenser is located at the inner end of the return air inlet and is inclined.
[0007] Compared with the prior art, the beneficial effects of this utility model are: this utility model adopts a compact integrated design, which is conducive to miniaturization and lightweighting, thus making it easy to apply to elevators. After the condensate is collected, it is poured onto the evaporator to promote heat dissipation and help save energy. Attached Figure Description
[0008] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0009] Figure 2 This is a three-dimensional structural diagram of the present invention;
[0010] Figure 3 This is a three-dimensional structural diagram of the present invention;
[0011] Figure 4 This is a schematic diagram of the main structure of this utility model.
[0012] In the diagram: 1. Base; 2. Outer casing; 3. Compressor; 4. Condenser; 5. Return air vent; 6. Air outlet; 7. Water tank; 8. Fan; 9. Evaporator; 10. Water pump; 11. Partition. Detailed Implementation
[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0014] Please see Figure 1-4 This utility model provides a technical solution: a miniature air conditioner for elevators, including a base 1, a compressor 3, a condenser 4, a fan 8, and an evaporator 9. The base 1 has a rectangular structure and a rectangular outer shell 2 is installed on it. The compressor 3, condenser 4, fan 8, and evaporator 9 are respectively installed on the base 1. The fan 8 has a centrifugal impeller and an axial impeller. The outer shell 2 has a mesh hole on one side of the evaporator 9. The axial impeller of the fan 8 is located inside the evaporator 9. When the axial impeller is running, it blows air to the evaporator 9.
[0015] The base 1 has an internal water collection tray that collects condensate generated during operation. A miniature water pump 10 and a water level sensor are installed inside the tray. The evaporator 9 has a symmetrical arc-shaped structure. The lower end of the evaporator 9 is placed in the water collection tray, and an arc-shaped water tank 7 is installed on the top of the evaporator 9. Several water flow holes are arranged along the length of the side of the water tank 7. The output end of the water pump 10 is connected to the water tank 7 through a pipe. The condensate is sprayed onto the evaporator 9 from above, where it evaporates quickly, improving heat dissipation. A transverse partition 11 is provided in the outer casing 2, separating the condenser 4 and the evaporator 9. The outer casing 2 has an air outlet 6 and a return air inlet 5 on opposite sides. The centrifugal air outlet of the fan 8 is connected to the air outlet 6. The condenser 4 is located at the inner end of the return air inlet 5 and is inclined to increase the frontal area. When the centrifugal impeller rotates, air is drawn from the return air inlet 5, passes through the condenser 4, and is discharged from the air outlet 6.
[0016] Working principle: This utility model integrates all the components of the air conditioner into a rectangular outer shell 2. The overall layout design makes the structure compact and easy to install. The condenser 4 and evaporator 9 are isolated by the partition 11 in the outer shell 2 and are heat exchanged by the same fan 8. The condensate is collected and poured onto the arc-shaped evaporator 4 to promote heat dissipation and save energy.
[0017] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A miniature air conditioner for elevators, comprising a base (1), a compressor (3), a condenser (4), a fan (8), and an evaporator (9), wherein the base (1) is a rectangular structure and a rectangular outer shell (2) is mounted thereon, the compressor (3), condenser (4), fan (8), and evaporator (9) are respectively mounted on the base (1), and the fan (8) has a centrifugal impeller and an axial impeller, characterized in that: The base (1) has a water collection tray inside, which collects the condensate generated during the working process. A miniature water pump (10) is installed in the water collection tray. The evaporator (9) has a symmetrical arc structure. The lower end of the evaporator (9) is placed in the water collection tray, and an arc-shaped water tank (7) is installed on the top of the evaporator (9). Several water flow holes are provided on the side of the water tank (7) along the length direction. The output end of the water pump (10) is connected to the water tank (7) through a pipe. A horizontal partition (11) is provided in the outer shell (2). The partition (11) separates the condenser (4) and the evaporator (9). The outer shell (2) has an air outlet (6) and an air return outlet (5) on opposite sides.
2. A miniature air conditioner for elevators according to claim 1, characterized in that: The outer casing (2) has a mesh hole on one side of the evaporator (9), and the axial flow impeller of the fan (8) is located inside the evaporator (9).
3. A miniature air conditioner for elevators according to claim 1, characterized in that: The centrifugal air outlet of the fan (8) is connected to the air outlet (6), and the condenser (4) is located at the inner end of the return air outlet (5) and is inclined.