High energy efficient refrigerator cabinet
Patent Information
- Application Number
- CN202522504449.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-26
- Publication Date
- 2026-10-23
- Estimated Expiration
- 2035-11-26
AI Technical Summary
然而，上述现有换热器降温结构存在显著的技术缺陷，其降热能力较差，严重制约了冷藏柜的整体制冷效果：一方面，风机产生的气流仅能沿换热器表面浅层流动，气流与换热器翅片的接触面积有限，且气流速度分布不均，靠近风机的区域气流集中，远离风机的区域易形成气流死角，导致换热器局部热量堆积，热交换效率低下；另一方面，气流流经换热器的路径较短，空气与制冷剂的热交换时间不足，大量携带热量的空气未充分散热即排出，无法充分发挥换热器的热交换潜力
[0009]采用上述结构后，本实用新型有益效果为：冷藏柜的制冷结构主要由热交换器和压缩机系统组成，对冷藏区内部进行供冷，散热风机将热交换器产生的热量带走；雾化装置产生的水雾进入到直管后从各条出雾管排出；散热风机使得热交换器的前表面产生气流，将出雾管排出的雾气经过热交换器之间的翅片缝隙然后从散热风机排出；水雾与热交换器的翅片接触后，带走热交换器的热量，提高热交换器的散热效率。该结构中，通过雾化装置产生雾气与热交换器的翅片接触进一步降温，降低热交换器工作的温度，提高制冷效率。
Smart Images
Figure CN224887401U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of refrigerator technology, and in particular to a high-efficiency refrigerator. Background Technology
[0002] As a core piece of equipment for food preservation and low-temperature storage, the refrigeration performance of a refrigerator directly depends on the combined refrigeration system consisting of a compressor, heat exchanger, and fan. Among these, the heat exchanger, as the core component for heat exchange between the refrigerant and air, directly determines the cooling rate and temperature stability inside the refrigerator. During the refrigeration process, the compressor delivers high-temperature, high-pressure refrigerant to the heat exchanger, where the refrigerant condenses and releases heat. The fan's core function is to generate airflow, causing air to flow across the surface of the heat exchanger. This airflow carries away the heat dissipated by the heat exchanger, thus cooling it and ensuring the continuous circulation of refrigerant and subsequent evaporative cooling. In existing technologies, the heat exchanger cooling structure of refrigerators generally adopts a simple layout of "fan + exposed heat exchanger": the heat exchanger is usually fixed in the mounting cavity at the back or bottom of the refrigerator, and the fan is set on one side of the heat exchanger. The fan rotation generates a unidirectional airflow, which makes the air flow parallel across the fin surface of the heat exchanger to achieve heat transfer. This type of structure is widely used in household refrigerators, small commercial refrigerators and other products due to its simple design, low manufacturing cost and convenient installation and maintenance. However, the existing heat exchanger cooling structure has significant technical defects, with poor heat reduction capacity, which seriously restricts the overall cooling effect of the refrigerator: on the one hand, the airflow generated by the fan can only flow along the shallow surface of the heat exchanger, the contact area between the airflow and the heat exchanger fins is limited, and the airflow velocity distribution is uneven. The airflow is concentrated in the area near the fan, and dead air zones are easily formed in the area away from the fan, resulting in local heat accumulation in the heat exchanger and low heat exchange efficiency; on the other hand, the path of the airflow through the heat exchanger is short, the heat exchange time between the air and the refrigerant is insufficient, and a large amount of air carrying heat is discharged without sufficient heat dissipation, which cannot fully utilize the heat exchange potential of the heat exchanger. The aforementioned defects directly lead to a chain of problems: in order to achieve the set cooling temperature, the compressor needs to operate under high load for a long time, which not only increases energy consumption but also shortens the service life of components such as the compressor and fan; at the same time, the cooling rate inside the refrigerator is slow and the temperature uniformity is poor, making it difficult to meet the requirements of scenarios with high refrigeration efficiency (such as commercial rapid refrigeration and continuous refrigeration in high-temperature environments), and the food preservation period is easily shortened due to insufficient refrigeration. In summary, the existing cooling structure in refrigerated cabinets that uses a fan to drive airflow to remove heat from the heat exchanger has the advantage of simple structure. However, due to design flaws in the airflow contact method and flow path, it suffers from the core problems of poor heat reduction capacity and low refrigeration efficiency. It is urgent to break through this technical bottleneck through structural improvements. Utility Model Content
[0003] The purpose of this invention is to provide a high-efficiency refrigerator in response to the defects and shortcomings of the existing technology.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: The present invention discloses a high-efficiency refrigerator, comprising a refrigerator body; a refrigeration area is provided on the top of the refrigerator body; and a heat exchanger and a cooling fan for dissipating heat from the heat exchanger are provided at the bottom of the refrigerator body. A straight pipe and a water tank are installed at the bottom of the refrigerator body; an atomizing device is installed inside the water tank; one end of the straight pipe is connected to the water tank; and a heat exchanger is installed between the straight pipe and the cooling fan. The straight pipe is provided with multiple mist outlet pipes; the mist outlet pipes are arranged sequentially along the length of the straight pipe.
[0005] Furthermore, a water collection pipe is provided at the bottom of the cold storage area; the water collection pipe is connected to a water receiving tank.
[0006] Furthermore, a water collection trough with an open top surface is provided on the inner bottom wall of the refrigeration area; the water collection pipe is connected to the water collection trough.
[0007] Furthermore, a mist collecting hood is fixed inside the water receiving tank; the atomizing device is installed inside the mist collecting hood; a fan is installed inside the mist collecting hood; and the mist collecting hood is connected to a straight pipe.
[0008] Furthermore, the atomizing device includes an ultrasonic atomizer body and a float plate fixed to the bottom of the ultrasonic atomizer body; multiple guide sleeves are fixed on the edge of the ultrasonic atomizer body; guide shafts are slidably connected inside each guide sleeve; and the guide shafts are fixed to the inner bottom of the water receiving tank.
[0009] The beneficial effects of this invention, achieved by adopting the above structure, are as follows: The refrigeration structure of the refrigerator mainly consists of a heat exchanger and a compressor system, which provides cooling to the interior of the refrigerated compartment. A cooling fan removes the heat generated by the heat exchanger. Water mist generated by the atomizing device enters the straight pipes and is discharged from each mist outlet pipe. The cooling fan creates airflow on the front surface of the heat exchanger, causing the mist discharged from the mist outlet pipes to pass through the fin gaps between the heat exchangers and then exit from the cooling fan. The water mist, upon contact with the fins of the heat exchanger, carries away the heat, improving the heat dissipation efficiency of the heat exchanger. In this structure, the mist generated by the atomizing device further cools the heat exchanger by contacting its fins, reducing the operating temperature of the heat exchanger and improving refrigeration efficiency. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 It is a structural diagram showing the arrangement of straight pipes, heat exchangers, and cooling fans. Figure 3 This is a structural diagram of the atomizing device; Explanation of reference numerals in the attached figures: 1. Refrigerator body; 2. Straight pipe; 201. Mist outlet pipe; 3. Water collection tank; 4. Refrigeration compartment; 5. Water collection pipe; 6. Fan; 7. Mist collection hood; 8. Water receiving tank; 9. Atomizing device; 901. Guide sleeve; 902. Guide shaft; 903. Ultrasonic atomizer body; 904. Float plate; 10. Heat exchanger; 11. Cooling fan. Detailed Implementation
[0011] The present invention will be further described below with reference to the accompanying drawings.
[0012] like Figures 1 to 3 As shown, the present invention provides a high-efficiency refrigerator, which includes a refrigerator body 1; a refrigerator compartment 4 is provided on the top of the refrigerator body 1; and a heat exchanger 10 and a cooling fan 11 for dissipating heat from the heat exchanger 10 are provided at the bottom of the refrigerator body 1. A straight pipe 2 and a water tank 8 are provided below the main body 1 of the refrigerator; an atomizing device 9 is provided inside the water tank 8; one end of the straight pipe 2 is connected to the water tank 8; and a heat exchanger 10 is provided between the straight pipe 2 and the cooling fan 11. The straight pipe 2 is provided with multiple mist outlet pipes 201; the mist outlet pipes 201 are arranged sequentially along the length of the straight pipe 2. The mist outlet pipe 201 is a pipe structure with a sealed end, connected to the straight pipe 2, and has multiple mist outlet holes at the sealed end; the water tank 8 is equipped with a level gauge and an alarm. When the level gauge detects that the liquid level inside the water tank 8 is lower than the set value, an alarm signal is generated to remind the staff to add water. The heat exchanger 10 is not fundamentally different from the existing technology, so it will not be described in detail. The refrigeration structure of the refrigerator mainly consists of a heat exchanger 10 and a compressor system, which provides cooling to the interior of the refrigeration compartment 4. The cooling fan 11 removes the heat generated by the heat exchanger 10. The water mist generated by the atomizing device 9 enters the straight pipe 2 and is discharged from each mist outlet pipe 201; the cooling fan 11 generates airflow on the front surface of the heat exchanger 10, and the mist discharged from the mist outlet pipe 201 passes through the fin gaps between the heat exchangers 10 and is then discharged from the cooling fan 11; after the water mist comes into contact with the fins of the heat exchanger 10, it carries away the heat of the heat exchanger 10 and improves the heat dissipation efficiency of the heat exchanger 10.
[0013] In this structure, the mist generated by the atomizing device 9 comes into contact with the fins of the heat exchanger 10 to further cool it down, thereby reducing the operating temperature of the heat exchanger 10 and improving the cooling efficiency.
[0014] In a preferred embodiment of this utility model, a water collection pipe 5 is provided at the bottom of the cold storage area 4; the water collection pipe 5 is connected to the water receiving tank 8; During operation, condensate is generated in the refrigeration compartment 4. It is prevented from flowing into the inner bottom wall of the refrigeration compartment 4, and then flows into the water collection tank 8 through the water collection pipe 5 to prevent water accumulation in the refrigeration compartment 4. It can also supply water to the atomizing device 9 inside the water collection tank 8.
[0015] In a preferred embodiment of this utility model, a water collection trough 3 with an open top surface is provided on the inner bottom wall of the refrigeration zone 4; the water collection pipe 5 is connected to the water collection trough 3. During operation, the condensate generated in the cold storage area 4 first flows into the water collection tank 3 for collection, and then falls into the water collection pipe 5 to keep the bottom wall of the cold storage area 4 dry.
[0016] In a preferred embodiment of this utility model, a mist collecting hood 7 is fixed inside the water receiving tank 8; the atomizing device 9 is disposed inside the mist collecting hood 7; a fan 6 is disposed inside the mist collecting hood 7; and the mist collecting hood 7 is connected to the straight pipe 2. The blower 6 creates a negative pressure inside the mist collection hood 7, and the water mist generated by the atomizing device 9 is forced by the blower 6 to flow into the straight pipe 2, so that the water mist is quickly discharged from the mist outlet pipe 201; and it also prevents the water mist from being discharged in reverse from the water collection pipe 5, and can also stably output water mist from the mist outlet pipe 201.
[0017] In a preferred embodiment of the present invention, the atomizing device 9 includes an ultrasonic atomizer body 903 and a float plate 904 fixed to the bottom of the ultrasonic atomizer body 903; a plurality of guide sleeves 901 are fixed on the edge of the ultrasonic atomizer body 903; a guide shaft 902 is slidably connected inside each guide sleeve 901; the guide shaft 902 is fixed to the inner bottom of the water receiving tank 8. The ultrasonic atomizer body 903 is not fundamentally different from existing technology, so it will not be described in detail here; the ultrasonic atomizer body 903 consists of a bracket and an ultrasonic atomizer. The float plate 904 is a hollow shell, which allows the support of the ultrasonic atomizer body 903 to float on the water surface, ensuring that the ultrasonic atomizer is immersed at the set height in the water. When the water level changes, the ultrasonic atomizer body 903 rises and falls along the guide shaft 902 to ensure that the height of the ultrasonic atomizer immersed in the water remains unchanged, thus ensuring the mist output effect.
[0018] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.
Claims
1. A high-efficiency refrigerator, comprising a refrigerator body (1); a refrigerator compartment (4) is provided on the top of the refrigerator body (1); a heat exchanger (10) and a cooling fan (11) for dissipating heat from the heat exchanger (10) are provided on the bottom of the refrigerator body (1). Its features are: A straight pipe (2) and a water tank (8) are provided below the main body (1) of the refrigerator; an atomizing device (9) is provided inside the water tank (8); one end of the straight pipe (2) is connected to the water tank (8); the heat exchanger (10) is located between the straight pipe (2) and the cooling fan (11); Multiple mist outlet pipes (201) are provided on the straight pipe (2); the mist outlet pipes (201) are arranged sequentially along the length of the straight pipe (2).
2. The high-efficiency refrigerator according to claim 1, characterized in that: A water collection pipe (5) is provided at the bottom of the cold storage area (4); the water collection pipe (5) is connected to the water receiving tank (8).
3. A high-efficiency refrigerator according to claim 2, characterized in that: The inner bottom wall of the cold storage area (4) is provided with a water collection trough (3) with an open top surface; the water collection pipe (5) is connected to the water collection trough (3).
4. A high-efficiency refrigerator according to claim 1, characterized in that: The water tank (8) is equipped with a mist collection hood (7) inside; the atomizing device (9) is installed inside the mist collection hood (7); a fan (6) is installed inside the mist collection hood (7); the mist collection hood (7) is connected to the straight pipe (2).
5. A high-efficiency refrigerator according to claim 1, characterized in that: The atomizing device (9) includes an ultrasonic atomizer body (903) and a float plate (904) fixed to the bottom of the ultrasonic atomizer body (903); multiple guide sleeves (901) are fixed on the edge of the ultrasonic atomizer body (903); guide shafts (902) are slidably connected inside each guide sleeve (901); the guide shafts (902) are fixed to the inner bottom of the water receiving tank (8).