Integrated double independent air duct refrigeration system

The integrated dual independent air duct design solves the problems of low efficiency and complex structure caused by the mixing of hot and cold air in traditional refrigeration systems, achieving efficient, compact and stable cooling effect, suitable for space-constrained application scenarios.

CN224498795UActive Publication Date: 2026-07-14GUANGDONG ZHUXIANG INTELLIGENT TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG ZHUXIANG INTELLIGENT TECHNOLOGY CO LTD
Filing Date
2025-06-26
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

In traditional refrigeration systems, the evaporator and condenser share the same air duct, resulting in low heat exchange efficiency and high energy consumption. Furthermore, existing independent air duct systems are complex in structure, large in size, and have poor stability, making it difficult to meet the requirements of miniaturization and integration.

Method used

It adopts an integrated dual independent air duct design, with the evaporator and condenser installed on opposite sides of the casing. The independent air ducts are equipped with supply and exhaust fans to avoid mixing of hot and cold air. The refrigerant circulation is optimized through the connecting pipelines of the compressor, condenser and evaporator, achieving efficient heat exchange and integrated layout.

Benefits of technology

It improves cooling efficiency by about 10%, reduces energy consumption, enables miniaturization and integration of equipment, facilitates installation, and enhances system stability and reliability.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model provides a kind of integrated double independent air duct refrigeration system, including box, evaporator, condenser;The evaporator and condenser are respectively installed in the two sides of box, the box on the outside of evaporator is opened outdoor air inlet, outside air enters the air duct where evaporator by outdoor air inlet, air duct is equipped with air supply fan, air supply fan pushes air to flow through evaporator;Air is sent into refrigeration area after heat exchange with evaporator;Another side of box is equipped with corresponding outdoor air inlet close to condenser, indoor air outlet is equipped opposite outdoor air inlet, outdoor air enters the air duct where condenser by outdoor air inlet, air duct is configured and installs exhaust fan, exhaust fan will wind flow flow through condenser, condenser releases heat, exhaust fan will absorb heat after hot air discharge outdoor.This new double independent air duct design avoids hot and cold air mixing, evaporator and condenser can efficiently carry out heat exchange in relatively independent airflow environment.
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Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment technology, specifically to an integrated dual independent air duct refrigeration system. Background Technology

[0002] In the field of refrigeration equipment, traditional refrigeration system duct designs have many drawbacks. Some refrigeration systems place the evaporator and condenser in the same duct, causing interference between hot and cold airflows, resulting in low heat exchange efficiency, poor cooling effect, and increased energy consumption. On the other hand, some refrigeration systems using independent ducts are often complex in structure and bulky in size, increasing manufacturing costs and installation space requirements, and making it difficult to guarantee stability and reliability during actual operation. Furthermore, existing refrigeration systems are insufficient in miniaturization and integration to meet the needs of specific scenarios such as small data center cabinets and small precision refrigeration equipment in homes. Therefore, developing a highly efficient, compact, and stable integrated dual-independent duct refrigeration system is of significant practical importance. To this end, we propose an integrated dual-independent duct refrigeration system. Utility Model Content

[0003] To address the problems in existing technologies, this utility model proposes an integrated dual independent air duct refrigeration system. Through innovative air duct design and system integration, it improves refrigeration efficiency, optimizes equipment space layout, and enhances system operational stability, thereby meeting the needs of different scenarios for efficient, compact, and reliable refrigeration equipment.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An integrated dual-independent air duct refrigeration system includes a housing, an evaporator, and a condenser. The evaporator and condenser are respectively installed on both sides of the housing. An outdoor air inlet is opened on the outer side of the housing of the evaporator. Outside air enters the air duct where the evaporator is located through the outdoor air inlet. An air supply fan is installed in the air duct, which pushes the air through the evaporator. After heat exchange with the evaporator, the air is sent into the refrigeration area. On the other side of the housing, near the condenser, there is a corresponding outdoor air inlet. Opposite the outdoor air inlet is an indoor exhaust vent. Outside air enters the air duct where the condenser is located through the outdoor air inlet. An exhaust fan is installed in the air duct, which blows the air through the condenser. The condenser releases heat, and the exhaust fan exhausts the hot air that has absorbed the heat to the outside.

[0006] Furthermore, the condenser airflow compensation structure also includes a compressor, which is installed outside the exhaust fan and located inside the housing.

[0007] Furthermore, the compressor is connected to the condenser via the compressor exhaust pipe; the condenser is connected to the evaporator via a capillary tube, and the evaporator is connected to the compressor via the compressor return pipe.

[0008] Furthermore, the exhaust fan is equipped with an exhaust fan outlet, which faces the outside.

[0009] Furthermore, the air intake of the outdoor air inlet shall not be less than 240 m³ / h.

[0010] Furthermore, a removable condenser filter is installed between the condenser and the air duct.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. High-efficiency cooling: The dual independent air duct design avoids the mixing of hot and cold air, allowing the evaporator and condenser to exchange heat efficiently in relatively independent airflow environments. The evaporator can fully absorb heat, and the condenser can quickly dissipate heat, greatly improving the overall cooling efficiency of the refrigeration system and reducing energy consumption by approximately 10% compared to traditional refrigeration systems.

[0013] 2. Compact integration: The evaporator, condenser and compressor are integrated into the same housing, reducing the external connection pipelines and floor space of the equipment. This achieves a high degree of integration and miniaturization of the equipment, which is convenient for installation and space layout, and is especially suitable for space-constrained application scenarios.

[0014] 3. Stable and Reliable: A well-designed duct system and component layout reduce airflow disturbance and pressure loss, resulting in smoother system operation. Independent ducts minimize interference between components, extend equipment lifespan, and improve system reliability and stability. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a top view of the overall structure of this utility model;

[0017] Figure 2 This is a rear view schematic diagram of the overall structure of this utility model;

[0018] Figure 3 This is a side view of the overall structure of this utility model.

[0019] The diagram is labeled as follows: 1-Box body; 2-Indoor exhaust vent; 3-Outdoor air inlet; 4-Evaporator; 5-Supply fan; 6-Exhaust fan; 7-Condenser; 8-Compressor; 9-Compressor return pipe; 10-Compressor exhaust pipe; 11-Exhaust fan outlet. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] like Figure 1-3 As shown, this embodiment provides an integrated dual independent air duct refrigeration system, including a housing 1, an evaporator 4, and a condenser 7. The evaporator 4 and the condenser 7 are respectively installed on both sides of the housing 1. An outdoor air inlet 3 is opened on the outer side of the housing of the evaporator 4. Outside air enters the air duct where the evaporator 4 is located through the outdoor air inlet 3. An air supply fan 5 is installed in the air duct, which pushes the air to flow through the evaporator 4. After heat exchange with the evaporator, the air is sent into the refrigeration area. On the other side of the housing 1, near the condenser 7, there is a corresponding outdoor air inlet 3. Opposite the outdoor air inlet 3, there is an indoor exhaust vent 2. Outside air enters the air duct where the condenser 7 is located through the outdoor air inlet 3. An exhaust fan 6 is installed in the air duct, which blows the air through the condenser 7. The condenser 7 releases heat, and the exhaust fan 6 exhausts the hot air that has absorbed the heat to the outside.

[0023] The air intake volume of outdoor air inlet 3 shall not be less than 240 m³ / h.

[0024] The exhaust fan 6 is provided with an exhaust fan outlet 11, which faces the outside.

[0025] The casing 1 is divided into left and right sides, where the evaporator 4 and condenser 7 are installed respectively. The evaporator side has a cooling air duct, and the condenser side has a heat dissipation air duct. The two air ducts are completely independent to avoid airflow mixing.

[0026] An outdoor air inlet 3 is opened on the outer wall of the casing 1 near the evaporator 4 to draw in outside air; the cold air after heat exchange is sent into the cooling area through a pipe.

[0027] An outdoor air inlet 3 is opened on the other side of the housing 1, corresponding to the position of the condenser 7, and an indoor air outlet 2 is set opposite it to exhaust hot air; the exhaust gas is discharged outdoors through the exhaust fan 6.

[0028] A removable condenser filter is installed between the condenser 7 and the air duct. The condenser filter prevents dust from entering the condenser 7 from the air duct, thus protecting the condenser 7's lifespan.

[0029] The condenser airflow compensation structure also includes a compressor 8, which is installed outside the exhaust fan 6 and located inside the housing 1.

[0030] The compressor 8 is connected to the condenser 7 via the compressor exhaust pipe 10; the condenser 7 is connected to the evaporator 4 via a capillary tube, and the evaporator 4 is connected to the compressor 8 via the compressor return pipe 9.

[0031] Compressor 8 is connected to condenser 7 via compressor discharge pipe 10. The high-temperature, high-pressure refrigerant gas generated by compressor 8 is delivered to condenser 7 through compressor discharge pipe 10. Condenser 7 is connected to evaporator 4 via capillary tube. The liquid refrigerant condensed in condenser 7 enters evaporator 4 after being throttled and depressurized through capillary tube. Evaporator 4 is connected to compressor 8 via compressor return pipe 9. The low-temperature, low-pressure refrigerant gas that has completed heat absorption and evaporation in evaporator 4 returns to compressor through return pipe to continue the next refrigeration cycle.

[0032] During installation, first, according to the equipment design requirements, fix the evaporator 4 and condenser 7 inside the housing 1 at the preset spacing and position, ensuring the sealing and independence of the evaporator and condenser air ducts. Install the compressor 8 in a suitable position in the housing 1, and ensure the refrigerant circulation pipeline is tightly connected and leak-free by precisely connecting the compressor exhaust pipe 10, capillary tube, and compressor return pipe 9. Install the supply fan 5 and exhaust fan 6 in their respective air ducts, ensuring the fans are securely installed and that the air inlet and outlet are unobstructed.

[0033] Operation process:

[0034] 1. After the system starts, the compressor 8 starts to run, compressing the low-temperature, low-pressure refrigerant gas into a high-temperature, high-pressure gas, which is then delivered to the condenser 7 through the compressor exhaust pipe 10.

[0035] 2. In the condenser 7 duct, outside air enters from the outdoor air inlet 3, and the exhaust fan 6 pushes the air through the condenser 7. The high-temperature, high-pressure refrigerant gas exchanges heat with the air in the condenser, releasing heat and condensing into a liquid state.

[0036] 3. The liquid refrigerant is throttled and depressurized through a capillary tube, becoming a low-temperature, low-pressure liquid before entering the evaporator 4.

[0037] 4. Inside the evaporator duct, outside air enters through the outdoor air inlet 3, and the blower 5 forces the air to flow through the evaporator. The low-temperature, low-pressure liquid refrigerant absorbs heat from the air in the evaporator and evaporates into a gaseous state, thus achieving air cooling.

[0038] 5. The evaporated gaseous refrigerant returns to the compressor through the return pipe, and this cycle continues to achieve the cooling function.

[0039] In summary, the dual independent air duct design avoids the mixing of hot and cold airflows, allowing the evaporator and condenser to efficiently exchange heat in relatively independent airflow environments. The evaporator can fully absorb heat, while the condenser can quickly dissipate heat, greatly improving the overall cooling efficiency of the refrigeration system and reducing energy consumption by approximately 10% compared to traditional refrigeration systems.

[0040] Integrating the evaporator, condenser, and compressor into a single enclosure reduces external piping and floor space, achieving a high degree of integration and miniaturization. This facilitates installation and spatial layout, making it particularly suitable for space-constrained applications.

[0041] A well-designed duct system and component layout reduce airflow disturbance and pressure loss, resulting in smoother system operation. Independent ducts minimize interference between components, extend equipment lifespan, and improve system reliability and stability.

[0042] The above description is merely an illustrative example of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined in the claims, all of which should fall within the protection scope of this utility model.

Claims

1. An integrated dual independent air duct refrigeration system, comprising a housing (1), an evaporator (4), and a condenser (7); wherein the evaporator (4) and the condenser (7) are respectively installed on both sides of the housing (1), characterized in that, An outdoor air inlet (3) is opened on the outer casing of the evaporator (4). External air enters the air duct where the evaporator (4) is located through the outdoor air inlet (3). A blower (5) is installed in the air duct. The blower (5) pushes the air through the evaporator (4). After the air exchanges heat with the evaporator, it is sent into the refrigeration area. A corresponding outdoor air inlet (3) is provided on the other side of the casing (1) near the condenser (7). An indoor exhaust vent (2) is provided opposite the outdoor air inlet (3). Outdoor air enters the air duct where the condenser (7) is located through the outdoor air inlet (3). An exhaust fan (6) is installed in the air duct. The exhaust fan (6) blows the air through the condenser (7). The condenser (7) releases heat. The exhaust fan (6) exhausts the hot air that has absorbed the heat to the outside.

2. The integrated dual independent air duct cooling system according to claim 1, characterized in that, The condenser airflow compensation structure also includes a compressor (8), which is installed outside the exhaust fan (6) and inside the housing (1).

3. The integrated dual independent air duct cooling system according to claim 2, characterized in that, The compressor (8) is connected to the condenser (7) through the compressor exhaust pipe (10); the condenser (7) is connected to the evaporator (4) through the capillary tube; and the evaporator (4) is connected to the compressor (8) through the compressor return pipe (9).

4. The integrated dual independent air duct cooling system according to claim 1, characterized in that, The exhaust fan (6) is provided with an exhaust fan outlet (11), which faces the outside.

5. The integrated dual independent air duct cooling system according to claim 1, characterized in that, The air intake of the outdoor air inlet (3) shall not be less than 240 m³ / h.

6. The integrated dual independent air duct cooling system according to claim 1, characterized in that, A removable condenser filter is installed between the condenser (7) and the air duct.