Single-temperature double-control air curtain cabinet
By designing a single controller and water collection components, the system achieves synchronous control of two refrigeration units within the air curtain cabinet and self-evaporation of condensate, solving the problems of condensate accumulation and synchronous control in expanded sizes of the air curtain cabinet, and improving system operating efficiency and environmental stability.
Patent Information
- Application Number
- CN202520356077.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-03-17
- Estimated Expiration
- 2035-03-03
AI Technical Summary
When expanding the coverage area, existing air curtain cabinets require the addition of refrigeration units, which leads to an increase in condensate production. If the condensate is not treated in a timely manner, it may cause water accumulation, leakage and equipment damage. At the same time, it is difficult to achieve synchronous control of two refrigeration units, resulting in energy waste and temperature fluctuations.
A single controller controls two parallel refrigeration units, combined with a water receiving assembly and an evaporation assembly. Condensate is managed through an overflow pipe and a water receiving tank structure. Temperature sensors and heating wires are used to achieve self-evaporation drainage of condensate, and heat transfer fluid and heat transfer fins are used to improve evaporation efficiency.
It achieves single-temperature dual control of two refrigeration units, optimizes the control process, improves system operating efficiency, ensures stable low-temperature air curtain under extended size, avoids condensate accumulation and equipment damage, and improves unit coordination and energy consumption utilization.
Smart Images
Figure CN224003873U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of air curtain cabinet manufacturing technology, and in particular to a single-temperature dual-control air curtain cabinet. Background Technology
[0002] An air curtain cabinet is a device that uses the principle of airflow to separate hot and cold air. It is widely used in commercial spaces such as shopping malls, supermarkets, and restaurants. An air curtain cabinet typically consists of a fan, fan blades, a compressor, and a control system. When the air curtain cabinet starts operating, the fan draws air into the cabinet through rotating fan blades and exhausts it through vents, forming a high-speed rotating airflow barrier. This barrier effectively prevents interference between indoor and outdoor temperatures, humidity, dust, and odors, thus maintaining a stable indoor environment. With the advancement of urbanization and the increase in people's purchasing power, commercial spaces have increasingly higher requirements for air quality. As an effective air conditioning device, the market demand for air curtain cabinets continues to grow.
[0003] In current applications of air curtain cabinets, a significant technical limitation is that their size is often strictly constrained by the installation space. When users need to expand the coverage of the air curtain, additional refrigeration units are usually added to achieve the required air curtain strength and width. How to synchronously control two refrigeration units has become one of the technical problems that need to be solved. As the number of refrigeration units increases, the amount of condensate produced also increases sharply. If it is not treated in a timely and effective manner, it may lead to water accumulation, leakage, or even equipment damage. How to achieve timely cleaning of condensate has also become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention
[0004] This device provides a single-temperature dual-control air curtain cabinet, the specific implementation of which is as follows:
[0005] A single-temperature dual-control air curtain cabinet includes:
[0006] The air curtain cabinet and controller are equipped with two parallel refrigeration units, and both refrigeration units are electrically connected to the controller. The refrigeration temperature of the two refrigeration units is controlled by a single controller.
[0007] The water receiving assembly is used to collect condensate in the air curtain cabinet. The water receiving assembly consists of a first water receiving tank and a second water receiving tank arranged vertically. The second water receiving tank at the higher end is provided with an overflow pipe connected to the first water receiving tank.
[0008] An evaporation assembly and a temperature sensor are located at the bottom of the second water tank. The assembly includes a heating wire and a heat pipe section of the connecting pipe in the refrigeration unit. Both the temperature sensor and the heating wire are electrically connected to the controller. Evaporative drainage of condensate in the second water tank is achieved through heat exchange by the heat pipe section of the connecting pipe and heating by the heating wire.
[0009] Based on the above technical solutions, a single controller was successfully used to achieve single-temperature dual-control operation of two refrigeration units inside the air curtain cabinet. This not only optimized the control process but also significantly improved the system's operating efficiency. During the expansion of the air curtain cabinet's size, the advantage of the number of refrigeration units was fully utilized. By increasing the number of units, a stable low-temperature air curtain could be maintained even in a larger space, effectively maintaining a constant low-temperature environment inside the cabinet. This controller also achieved precise and synchronous control of the two refrigeration units, meaning that the two units could work collaboratively according to actual needs. Whether starting, running, or stopping, they could maintain a high degree of consistency and coordination, thus avoiding energy waste and temperature fluctuations caused by asynchronous operation between units. Furthermore, the self-evaporation of condensate was achieved by utilizing evaporation components.
[0010] Preferably, both the first water tank and the second water tank are designed to open upwards, and the opening area of the second water tank is smaller than the opening area of the first water tank.
[0011] Preferably, the overflow pipe is vertically installed in the second water receiving tank, with the top of the overflow pipe corresponding to the upper part of the second water receiving tank and its bottom connected to the first water receiving tank.
[0012] Based on the above technical solutions, in order to manage and collect the condensate generated by the two refrigeration units more efficiently and safely, a comprehensive drainage structure including an overflow pipe, a first water receiving tank, and a second water receiving tank was designed. This ensures that if the water level in the second water receiving tank exceeds the preset safe water level, the excess water can be automatically and smoothly diverted to the first water receiving tank for storage through the overflow pipe. Considering extreme cases, if the overflow pipe cannot drain all the excess water in time due to various reasons (such as blockage or flow limitation), when the internal water level continues to rise and touches the top of the second water receiving tank, the excess water will overflow directly from the top and flow smoothly into the first water receiving tank below. This dual protection mechanism greatly enhances the flexibility and reliability of the system, ensuring that water can be effectively prevented from overflowing into the storage chamber under any circumstances, maintaining the cleanliness and safety of the storage environment.
[0013] Preferably, the water receiving assembly further includes a mounting bracket, with the second water receiving tank fixedly installed above the mounting bracket, and the lower part of the mounting bracket slidably connected to the first water receiving tank.
[0014] Preferably, the bottom of the second water tank is provided with a jacket for accommodating the connecting pipe and the heating wire, and the jacket is filled with heat-conducting liquid.
[0015] Preferably, several heat-conducting cylinders are vertically arranged above the interlayer, and heat-conducting fins are added around the heat-conducting cylinders.
[0016] Based on the above technical solutions, a temperature sensor, a heat pipe section of the connecting pipe, and a heating wire are installed in the second water tank. This not only utilizes the heat generated by the operation of the refrigeration unit, but also uses the heating wire to compensate for the insufficient evaporation temperature required when the air curtain cabinet is operating inefficiently. The use of heat transfer oil and heat transfer fins also improves the uniformity of temperature heating in the second water tank.
[0017] Preferably, the air curtain cabinet is divided into an upper compartment and a lower compartment. The refrigeration unit consists of a condenser and a compressor connected by connecting pipes, and both of them, along with the water receiving components, are located in the lower compartment.
[0018] Preferably, the upper compartment is provided with a C-shaped cooling channel, and an evaporator connected to the refrigeration unit is installed in the cooling channel; several shelves are vertically arranged in the upper compartment, and the cooling channel is provided with an air outlet at the position of each shelf.
[0019] In summary, this application includes the following beneficial technical effects:
[0020] 1. This utility model achieves single-temperature dual control by controlling two refrigeration units inside the air curtain cabinet with a single controller. It also maintains a low-temperature air curtain by utilizing the quantity advantage while expanding the size of the air curtain cabinet, and at the same time achieves synchronous control of the two refrigeration units.
[0021] 2. This utility model sets a temperature sensor, a heat pipe section of the connecting pipe and a heating wire in the second water tank, which not only utilizes the heat generated by the operation of the refrigeration unit, but also uses the heating wire to make up for the lack of evaporation temperature required when the air curtain cabinet is operating inefficiently.
[0022] 3. This utility model has a simple structure. By setting an overflow pipe, a first water receiving tank and a second water receiving tank, the water in the second water receiving tank does not evaporate in time, and the water in the second water receiving tank overflows into the first water receiving tank for storage. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the structure of this utility model;
[0024] Figure 2 This is a cross-sectional view of the side structure of this utility model;
[0025] Figure 3 This is a top view of the cross-sectional structure of this utility model;
[0026] Figure 4 This is a cross-sectional view of the right side structure of this utility model;
[0027] Figure 5 This is a cross-sectional view of the water receiving component structure in this utility model;
[0028] Figure 6 This is a schematic diagram of the structure of the water receiving component after deformation and application in this utility model;
[0029] Figure 7 This is a cross-sectional view of the water receiving component after deformation and explosion in this utility model.
[0030] Explanation of reference numerals in the attached figures:
[0031] 1. Air curtain cabinet; 2. Refrigeration unit; 3. Evaporator; 5. Water collection assembly; 6. Evaporation assembly; 7. Heat transfer cylinder; 8. Heat transfer fins.
[0032] 101. Upper compartment, 102. Lower compartment, 103. Refrigeration flow channel, 104. Shelf, 201. Condenser, 202. Compressor, 501. First water tank, 502. Mounting bracket, 503. Second water tank, 504. Overflow pipe, 505. Interlayer, 601. Connecting pipe, 602. Heating wire. Detailed Implementation
[0033] The specific embodiments of this utility model are described below with reference to the accompanying drawings and examples:
[0034] It should be noted that the structures, proportions, sizes, etc. shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.
[0035] Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.
[0036] The following is in conjunction with the appendix Figure 1 - Appendix Figure 7 This application will be described in further detail.
[0037] This application discloses a single-temperature dual-control air curtain cabinet.
[0038] Example 1
[0039] Reference Figures 1 to 5This embodiment discloses a single-temperature dual-control air curtain cabinet, including an air curtain cabinet 1, a water receiving component 5 for receiving condensate in the air curtain cabinet 1, an evaporation component 6, and a controller. The air curtain cabinet 1 is equipped with two parallel refrigeration units 2, and both refrigeration units 2 are electrically connected to the controller. The refrigeration temperature of the two refrigeration units 2 is controlled by a single controller. The water receiving component 5 consists of a first water receiving tank 501 and a second water receiving tank 503 arranged vertically. The second water receiving tank 503 at the higher end is provided with an overflow pipe 504 connected to the first water receiving tank 501. The evaporation component 6 is located at the bottom of the second water receiving tank 503. The evaporation component 6 includes a heat pipe section of the connecting pipe 601 in the refrigeration unit 2. The heat pipe section of the connecting pipe 601 exchanges heat on its own to achieve evaporative drainage of condensate in the second water receiving tank 503.
[0040] Both the first water receiving tank 501 and the second water receiving tank 503 are designed to open upwards, and the opening area of the second water receiving tank 503 is smaller than that of the first water receiving tank 501. In this structure, the overflow pipe 504 is vertically installed in the second water receiving tank 503, and the top of the overflow pipe 504 corresponds to the upper part of the second water receiving tank 503, and its bottom is connected to the first water receiving tank 501. When too much water accumulates in the second water receiving tank 503 and the overflow pipe 504 cannot drain it in time or the overflow pipe 504 becomes blocked, the water in the second water receiving tank 503 overflows directly from the top to the first water receiving tank 501.
[0041] The water receiving assembly 5 also includes a mounting bracket 502. The second water receiving tank 503 is fixedly installed above the mounting bracket 502, and the lower part of the mounting bracket 502 is slidably connected to the first water receiving tank 501. In this structure, a suction pump connected to the second water receiving tank 503 can be added to the first water receiving tank 501. A low liquid level sensor can be added to the second water receiving tank 503. A liquid level sensor can be added to the first water receiving tank 501. When there is less liquid in the second water receiving tank 503 and more liquid in the first water receiving tank 501, the suction pump will run to draw the liquid in the second water receiving tank 503 back for evaporation and removal.
[0042] Example 2
[0043] Reference Figures 1 to 4 Based on the above embodiments, this embodiment also discloses a single-temperature dual-control air curtain cabinet. The air curtain cabinet 1 is divided into an upper chamber 101 and a lower chamber 102. The refrigeration unit 2 is formed by connecting a condenser 201 and a compressor 202 through a connecting pipe 601. Both of them and the water receiving component 5 are located in the lower chamber 102. In this structure, a C-shaped refrigeration channel 103 is arranged in the upper chamber 101, and an evaporator 3 connected to the refrigeration unit 2 is installed in the refrigeration channel 103. Several shelves 104 are vertically arranged in the upper chamber 101, and the refrigeration channel 103 is provided with an air outlet at the position of each shelf 104.
[0044] The specific implementation process is as follows: the refrigeration unit 2 is started, and the condenser 201 and compressor 202 work to make the evaporator 3 act on the gas in the refrigeration channel 103. The gas in the refrigeration channel 103 is circulated back by the fan on the evaporator 3 and acts on the items in the upper compartment 101 to keep them cold and warm in real time. During this period, the condensate produced by the refrigeration unit 2 falls into the second water tank 503, and the evaporation component 6 is started to perform self-evaporation treatment on the water accumulated in the second water tank 503.
[0045] Example 3
[0046] Reference Figures 5 to 7 Based on the above embodiments, this embodiment also discloses a single-temperature dual-control air curtain cabinet, which also includes a temperature sensor. The bottom of the second water tank 503 is provided with a jacket 505 for accommodating the connecting pipe 601 and the heating wire 602. The jacket 505 is filled with heat-conducting liquid. In this structure, the temperature sensor is located at the bottom of the second water tank 503. The evaporation assembly 6 also includes a heating wire 602. Both the temperature sensor and the heating wire 602 are electrically connected to the controller. The evaporative drainage of the condensate in the second water tank 503 is achieved through the heat exchange of the heat pipe section of the connecting pipe 601 and the heating of the heating wire 602.
[0047] The connecting pipe 601 and heating wire 602 are arranged alternately. Four heat-conducting cylinders 7 are vertically arranged above the interlayer 505. Removable heat-conducting fins 8 are added around the heat-conducting cylinders 7. Each heat-conducting fin 8 is arranged in a star-shaped or cross-shaped outline around the heat-conducting cylinder 7. The heat exchange area is increased by the heat-conducting fins 8, which greatly improves the evaporation and drainage efficiency of the second water tank 503. In addition, the use of removable heat-conducting fins 8 can prevent scale from being generated during long-term use from affecting the overall evaporation efficiency.
[0048] Many other changes and modifications can be made without departing from the concept and scope of this utility model. It should be understood that this utility model is not limited to the specific embodiments, and the scope of this utility model is defined by the appended claims.
Claims
1. A single-pole double-throw air curtain cabinet, characterized in that, The application relates to a wind curtain cabinet (1) and a controller, the wind curtain cabinet (1) is internally provided with two parallel refrigerating units (2), the two refrigerating units (2) are electrically connected to the controller, and the refrigerating temperature of the two refrigerating units (2) is controlled by a single controller. A water receiving assembly (5) for receiving condensed water in the wind curtain cabinet (1), the water receiving assembly (5) is composed of a first water receiving tank (501) and a second water receiving tank (503) arranged in a vertical stack, and an overflow pipe (504) is arranged on the second water receiving tank (503) at a high position and is communicated with the first water receiving tank (501). An evaporation assembly (6) arranged at the bottom of the second water receiving tank (503) and a temperature sensor, which comprises a heating wire (602) and a heat pipe section of a connecting pipe (601) in the refrigerating unit (2), the temperature sensor and the heating wire (602) are electrically connected to the controller, and the evaporation drainage of the condensed water in the second water receiving tank (503) is realized through self-heat exchange of the heat pipe section of the connecting pipe (601) and heating of the heating wire (602). The first water receiving tank (501) and the second water receiving tank (503) are both arranged in an upward opening shape, and the opening area of the second water receiving tank (503) is smaller than that of the first water receiving tank (501).
2. A twin fan enclosure according to claim 1 wherein, The overflow pipe (504) is vertically arranged in the second water receiving tank (503), and the top end of the overflow pipe (504) corresponds to the upper part of the second water receiving tank (503), and the bottom part of the overflow pipe (504) is communicated with the first water receiving tank (501).
3. A twin fan enclosure according to claim 2, wherein, The water receiving assembly (5) further comprises a mounting frame (502), the second water receiving tank (503) is fixedly arranged above the mounting frame (502), and the mounting frame (502) is slidably connected with the first water receiving tank (501) below.
4. A twin fan enclosure according to claim 3, wherein, The second water receiving tank (503) is provided with a sandwich layer (505) for accommodating the connecting pipe (601) and the heating wire (602), and the sandwich layer (505) is filled with heat-conducting liquid.
5. A twin fan enclosure according to claim 4, wherein, The wind curtain cabinet (1) is divided into an upper cabinet body (101) and a lower cabinet body (102), the refrigerating unit (2) is formed by a condenser (201) and a compressor (202) through the connecting pipe (601), and the refrigerating unit (2) and the water receiving assembly (5) are both arranged in the lower cabinet body (102).
6. A twin-pilot curtain cabinet according to claim 1, wherein, A C-shaped refrigerating flow channel (103) is arranged in the upper cabinet body (101), and an evaporator (3) connected to the refrigerating unit (2) is additionally arranged in the refrigerating flow channel (103).
7. A twin fan enclosure according to claim 6, wherein, A plurality of vertical shelves (104) are arranged in the upper cabinet body (101), and air outlets are arranged at the positions of the shelves (104). A plurality of heat-conducting cylinders (7) are vertically arranged above the sandwich layer (505), and heat-conducting fins (8) are additionally arranged on the circumferential side of the heat-conducting cylinders (7).
8. A twin fan enclosure according to claim 5, wherein,