Integral roof direct-expansion energy-saving unit

By integrating the indoor and outdoor units of the air conditioning unit and diverting the condensate to the humidification system, the problems of complex installation and resource waste are solved, water resources are reused and indoor humidification is achieved, and the comfort level in the dry northern regions is improved.

CN223840532UActive Publication Date: 2026-01-27SHANDONG GRAD GROUP
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Patent Information

Application Number
CN202520453052.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-15
Publication Date
2026-01-27
Estimated Expiration
2035-03-15

AI Technical Summary

Technical Problem

The existing air conditioning units have a separate design, which makes installation complicated, requires a lot of space, and cannot recycle condensate or humidify it, resulting in poor indoor comfort, especially in dry northern regions.

Method used

The design incorporates an integrated rooftop direct expansion energy-saving unit, combining the indoor and outdoor units. It also includes a condensate drainage system to enhance humidification, utilizing wet film and atomizing humidifiers to achieve water reuse and continuous humidification.

Benefits of technology

It enables the secondary use of condensate, increases the functionality of the equipment, improves indoor humidity, and solves the problems of complex installation and resource waste, making it suitable for use in dry northern environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an integral type roof direct-expansion energy-saving unit. A filtering device, an evaporator and a fan are arranged in a box body of the integral type roof direct-expansion energy-saving unit; an air inlet is formed in the front side of the filtering device and connected with an air outlet through a fan, and rapid ventilation of the working area of the evaporator is achieved; a condenser is further arranged in the box body, a compressor unit is arranged in cooperation with the condenser, a wet film humidifier is arranged on the front side or the rear side of a compressor, and a wet film water tank is arranged below the wet film humidifier. A water storage tank is further arranged in the box body and connected with the evaporator, and a water supply pump matched with the water storage tank is arranged to supply water to the wet film humidifier. The problems that occupied space is large, construction is tedious, and site construction is expensive are solved; the problem of recycling condensate water is solved, the condensate water can be directly guided into the humidifying module, secondary utilization of water resources is achieved, and the functionality of the equipment is improved; and the air conditioner area can be humidified in an efficient or continuous state, and the humidifier is particularly suitable for being used in a dry environment in northern China.
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Description

Technical Field

[0001] This utility model belongs to the technical field of air conditioning units, and in particular relates to an integrated roof direct expansion energy-saving unit. Background Technology

[0002] Existing air conditioning units are designed as split units, meaning the indoor and outdoor units are separate. This design presents several technical problems. Firstly, it requires separate installation, which involves complicated steps, a large workload, and high construction costs. It also requires a large installation space. The evaporator of this type of split unit is located indoors, and the condensate produced during operation cannot be recovered and must be discharged externally, resulting in resource waste. In addition, it requires a dedicated drainage pipe that must be separated from the electrical wiring, causing installation difficulties.

[0003] Furthermore, current air conditioning units of this type do not have a humidification function, especially in northern regions of my country, such as Xinjiang, Inner Mongolia, and Gansu, where indoor humidity is low. This causes discomfort for people indoors when the air conditioner is running, but there is currently no good way to solve this problem.

[0004] Given the aforementioned technical problems, those skilled in the art urgently need to design an integrated rooftop direct expansion energy-saving unit. The purpose is to optimize the condensate drainage scheme, enabling the reuse of water resources. Furthermore, it integrates the indoor and outdoor units, installs them modularly, and includes a rapid and continuous humidification device inside to improve indoor comfort. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, this utility model provides an integrated rooftop direct expansion energy-saving unit, which integrates the indoor and outdoor units by setting an integrated modular model. At the same time, it can guide condensate water to the humidification system, realize the secondary utilization of water resources, and increase the humidification functionality of the equipment.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] An integrated rooftop direct expansion energy-saving unit includes a housing, inside which a filter device and an evaporator are installed, and a fan is installed behind the evaporator; an air inlet is installed in front of the filter device, and the fan is connected to the air outlet.

[0008] The enclosure also contains a condenser, and a compressor unit is installed in conjunction with the condenser. A wet film humidifier is installed on the front or rear side of the condenser, and a wet film water tank is installed below the wet film humidifier. The enclosure also contains a water storage tank connected to the evaporator, and a water pump is installed in conjunction with the water storage tank to supply water to the wet film humidifier. A condenser fan is installed in the enclosure to blow air to the outside.

[0009] A spray device is installed above the wet film humidifier. The spray device is connected to a water supply pump and sprays water to humidify the wet film humidifier.

[0010] A misting humidification chamber is provided behind the condenser fan. The misting humidification chamber is equipped with a misting unit. Atomizing holes are provided on the top cover or side wall of the misting humidification chamber. The misting water in the misting holes is delivered to the room by the condenser fan.

[0011] An external water supply pipe is provided in conjunction with the water supply pump. The external water supply pipe is used to supply water to the auxiliary water storage tank of the wet film humidifier or the atomizing humidification chamber.

[0012] The top of the fan is provided with a flexible connection to the air outlet, and the bottom of the fan is provided with a spring base that contacts the bottom surface of the casing or the support surface.

[0013] The filtration device includes a plate-type primary filter section and a plate-type secondary filter section, which are quickly fixed to the housing using a plug-in slot structure.

[0014] The beneficial effects of this utility model with the above structure are described as follows: This utility model discloses an integrated rooftop direct expansion energy-saving unit, which has a filter device, an evaporator, and a fan inside the housing; an air inlet is provided on the front side of the filter device, which is connected to the air outlet through the fan to achieve rapid ventilation of the evaporator working area; a condenser is also provided inside the housing, and a compressor unit is provided in conjunction with the condenser; a wet film humidifier is provided on the front or rear side of the compressor, and a wet film water tank is provided below the wet film humidifier; a water storage tank is also provided inside the housing and connected to the evaporator, and a water pump is provided in conjunction with the water storage tank to supply water to the wet film humidifier. This utility model solves the problems of large space occupation and complicated and expensive on-site construction; it solves the problem of condensate water recycling and reuse, and can directly guide the condensate water to the humidification module to realize the secondary utilization of water resources and increase the functionality of the equipment; it can humidify the air-conditioned area in a high-efficiency or continuous state, and is especially suitable for use in the relatively dry environment of northern my country. It overcomes many problems in the prior art and is an ideal integrated rooftop direct expansion energy-saving unit. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a side view of the structure of this utility model;

[0017] Figure 3 for Figure 2 Enlarged schematic diagram of the structure of region A in the middle;

[0018] Figure 4This is a schematic diagram of the atomizing unit structure;

[0019] In the attached diagram: 1. Housing; 11. Air inlet; 12. Air outlet; 13. Compressor unit; 14. Condenser; 15. Condenser fan; 16. Wooden support; 2. Fan; 21. Fan base; 22. Shock-absorbing spring; 23. Flexible connection; 3. Evaporator; 4. Plate medium-efficiency filter section; 41. Plate primary-efficiency filter section; 42. Insertion slot; 5. Water storage tank; 6. Water supply pump; 61. High-pressure water pipe; 62. Spray head; 63. External water supply pipe; 7. Wet film humidifier; 71. Wet film water tank; 8. Atomizing humidification chamber; 81. Support frame; 82. Top cover; 83. Cover baffle; 84. Atomizing hole; 85. Water supply port; 86. Sealing strip; 9. Atomizing unit; 91. Atomizing hole; 92. Locking seat; 93. Waterproof power connector. Detailed Implementation

[0020] The present invention will be described in detail below through specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. However, it should be noted that the specific embodiments described below do not limit the technical solution. Those skilled in the art can make further technical extensions under the guidance of the following technical solutions. The scope of protection of this patent application is determined by the claims.

[0021] Example 1: As Figures 1-3 As shown: An integrated rooftop direct expansion energy-saving unit includes a housing 1, which is divided into upper and lower layers. The upper layer houses a filter device and an evaporator 3, with a fan 2 located behind the evaporator 3. An air inlet 11 is located in front of the filter device, and the fan 2 is connected to an air outlet 12. In this embodiment, the filter device is multi-layered, including at least a plate-type primary filter section 4 and a plate-type medium-efficiency filter section 41. The plate-type primary filter section 4 filters large particles, while the plate-type medium-efficiency filter section 42 filters smaller particles. Both the plate-type primary filter section 4 and the plate-type medium-efficiency filter section 41 are quickly fixed to the housing 1 using a plug-in slot 42 connection structure. This structure enables rapid replacement and maintenance of the plate-type primary filter section 4 and the plate-type medium-efficiency filter section 41.

[0022] The aforementioned fan 2 generates significant noise during operation. To prevent excessive noise pollution, this embodiment incorporates further structural improvements, specifically as follows: A flexible connection 23 connects the top of the fan 2 to the air outlet 12, and a spring base at the bottom of the fan 2 contacts the supporting surface of the second layer. The spring base is composed of a fan base 21 and a shock-absorbing spring 22. This structure minimizes noise during fan operation.

[0023] In this invention, a condenser 14 is also provided in the lower layer of the housing 1, and a compressor unit 13 is provided in conjunction with the condenser 14. The connection relationship between the condenser 14 and the compressor unit 13 is existing technology and will not be described in detail here.

[0024] A wet film humidifier 7 is provided on the front side of the condenser 14, and a wet film water tank 71 is provided below the wet film humidifier 7; a water storage tank 5 is also provided inside the housing 1 and connected to the evaporator 3. The water storage tank 5 is used to store water in the evaporator 3; a water supply pump 6 is provided in conjunction with the water storage tank 5 to supply water to the wet film humidifier 7; in this embodiment, two schemes are provided for the water supply method of the wet film humidifier. First, those skilled in the art can provide a spray device consisting of a high-pressure water pipe 61 and several spray heads 62 above the wet film humidifier 7. The spray device is connected to the water supply pump 6 and sprays water to humidify the wet film humidifier 7; those skilled in the art can also directly inject water into the wet film water tank 71 and achieve air humidification through the self-priming of the wet film humidifier 7.

[0025] The housing 1 is equipped with a condenser fan 15 that blows air to the outside. In this embodiment, following industry practice, the condenser fan 15 is installed on the outer wall of the bottom layer of the housing 1, and the condenser fan 15 blows the treated gas to the outside.

[0026] Based on the above structural settings, in order to ensure stable and continuous operation in the humidification state, this utility model is also equipped with an external water supply pipe 63 in conjunction with the water supply pump 6. The external water supply pipe 63 assists the water storage tank 5 in supplying water to the wet film humidifier 7, so as to prevent the device from failing to humidify normally when the water supply in the water storage tank 5 is insufficient.

[0027] Example 2: Based on Example 1, further, an atomizing humidification chamber 8 is provided on the top of the condenser 14 behind the condenser fan 15. Those skilled in the art can provide a support frame 81 inside the housing 1 to support the atomizing humidification chamber 8. A top cover 82 is provided on the top of the atomizing humidification chamber 8, and a number of atomizing holes 84 are provided on the top cover 82. A number of atomizing units 9 are provided inside the atomizing humidification chamber 8. A cover baffle 83 is also provided on the front side of the top cover 82. A sealing strip 86 is also provided on the bottom surface of the upper layer of the housing to press and seal with the cover baffle 83. Under the negative pressure suction of the condenser fan 15, the water mist emitted from the atomizing holes 84 can be guided into the room. This can achieve a rapid increase in indoor humidity. It can also be understood that the atomizing humidification chamber 8 is used for rapid humidification, and after rapid humidification, it is stabilized by the wet film humidifier 7. The atomizing unit 9 described above is a modular design, with several atomizing holes 92 on its top surface. A waterproof power connector 93 is located on the side wall of the atomizing unit 9 for external power supply. Locking seats 92 are also provided on the left and right sides of the atomizing unit 9 to secure it inside the atomizing humidification chamber 8. The atomizing unit 9 can be the M0405 model from Foshan Nanhai Kerui Ultrasonic Electronics Co., Ltd., or a similar product.

[0028] In summary, this utility model solves the problems of large space occupation, complicated construction, and high on-site construction costs; it also solves the problem of condensate water recycling and reuse, allowing condensate water to be directly guided to the humidification module, realizing the secondary utilization of water resources and increasing the functionality of the equipment; it can humidify the air-conditioned area in high-efficiency or continuous mode, making it particularly suitable for use in the relatively dry environment of northern my country. It overcomes many problems in the existing technology and is an ideal integrated roof direct expansion energy-saving unit.

Claims

1. An integrated rooftop direct expansion energy-saving unit, characterized in that: It includes a housing, inside which a filter device and an evaporator are installed, and a fan is installed behind the evaporator; an air inlet is installed in front of the filter device, and the fan is connected to the air outlet. The enclosure also contains a condenser, and a compressor unit is installed in conjunction with the condenser. A wet film humidifier is installed on the front or rear side of the condenser, and a wet film water tank is installed below the wet film humidifier. The enclosure also contains a water storage tank connected to the evaporator, and a water pump is installed in conjunction with the water storage tank to supply water to the wet film humidifier. A condenser fan is installed in the enclosure to blow air to the outside.

2. The integrated rooftop direct expansion energy-saving unit as described in claim 1, characterized in that: A spray device is installed above the wet film humidifier. The spray device is connected to a water supply pump and sprays water to humidify the wet film humidifier.

3. The integrated rooftop direct expansion energy-saving unit as described in claim 1, characterized in that: A misting humidification chamber is provided behind the condenser fan. The misting humidification chamber is equipped with a misting unit. Atomizing holes are provided on the top cover or side wall of the misting humidification chamber. The misting water in the misting holes is delivered to the room by the condenser fan.

4. The integrated rooftop direct expansion energy-saving unit as described in claim 3, characterized in that: An external water supply pipe is provided in conjunction with the water supply pump. The external water supply pipe is used to supply water to the auxiliary water storage tank of the wet film humidifier or the atomizing humidification chamber.

5. The integrated rooftop direct expansion energy-saving unit as described in claim 1, characterized in that: The top of the fan is provided with a flexible connection to the air outlet, and the bottom of the fan is provided with a spring base that contacts the bottom surface of the casing or the support surface.

6. The integrated rooftop direct expansion energy-saving unit as described in claim 1, characterized in that: The filtration device includes a plate-type primary filter section and a plate-type secondary filter section, which are quickly fixed to the housing using a plug-in slot structure.