Novel air-cooled cabinet device

Abstract

The application provides a novel air-cooled cabinet device, which comprises a shell, the top of the shell is provided with a first area, a heat exchanger assembly is further arranged in the shell, the heat exchanger assembly is located below the first area, and an electric appliance box assembly is arranged in the first area; by arranging the electric appliance box assembly in the first area of the top of the shell, when the electric appliance box assembly is disassembled and repaired, workers do not need to bend down to operate, the convenience of operation is greatly improved, meanwhile, since the electric appliance box assembly is arranged above the heat exchanger assembly, when the evaporator is cleaned or condensate water is generated on the evaporator, the electric appliance box assembly will not be affected, the risk that the electric appliance box assembly is short-circuited due to water entering is avoided, the electric appliance box assembly is moved from the return air area to the first area, the evaporator is avoided from being shielded, the heat exchange area of the evaporator is not affected, and the refrigeration efficiency of the air-cooled cabinet is improved.

Description

Technical Field

[0001] This application relates to the field of air-cooled cabinet technology, and in particular to a novel air-cooled cabinet device. Background Technology

[0002] The electrical box of an air-cooled cabinet is the core control unit of the refrigeration system. It is mainly responsible for the centralized installation, protection, and coordinated operation of electrical components. It typically contains key components such as compressor starters, overload protectors, thermostats, relays, and circuit boards. It is the "brain" of the air-cooled cabinet, connecting the power supply, compressor, fan motor, lighting, etc. through internal wiring to ensure that all components work together. It is also equipped with fuses, circuit breakers, or thermal protectors to cut off the power supply in case of abnormal current, preventing equipment damage or fire. Some electrical boxes have built-in voltage regulator modules to avoid voltage fluctuations from impacting precision components such as compressors. The electrical box is generally designed with a sealed structure to reduce the ingress of moisture and dust, reducing the risk of short circuits (especially in low-temperature and humid environments).

[0003] In existing air-cooled cabinet layouts, there is usually a return air zone and a cold air zone. The return air zone is located at the bottom of the air-cooled cabinet, while the cold air zone is located at the top. External air enters the return air zone of the air-cooled cabinet through the return air vent, exchanges heat with the evaporator, and then enters the cold air zone before being discharged through the air outlet. The electrical box of the air-cooled cabinet is usually placed in the return air zone below the evaporator. Although placing the electrical box below the evaporator avoids the problem of condensation in the electrical box, it requires workers to bend over during installation and maintenance, which is not conducive to maintenance. In addition, there is a risk of water entering the electrical box when cleaning the evaporator. Utility Model Content

[0004] This application provides a novel air-cooled cabinet device, comprising:

[0005] A housing, the top of which has a first region;

[0006] A heat exchanger assembly disposed within the housing and located below the first region;

[0007] An electrical box assembly is disposed in the first area.

[0008] According to the technical solutions provided in certain embodiments of this application, the first region includes:

[0009] The first space, which contains a fan assembly;

[0010] The second space is located on one side of the first space and is separated from the first space. The electrical box assembly is located in the second space.

[0011] According to the technical solutions provided in certain embodiments of this application, a cover is provided in the first region, the fan assembly is provided on one side of the cover, and the electrical box assembly is provided inside the cover.

[0012] According to the technical solutions provided in certain embodiments of this application, the electrical box assembly includes a box body, and a first gap exists between the box body and the cover.

[0013] According to the technical solutions provided in certain embodiments of this application, the bottom of the box body is provided with a plurality of first wire passage holes, and the bottom of the cover is provided with a plurality of second wire passage holes corresponding to the first wire passage holes.

[0014] According to the technical solutions provided in certain embodiments of this application, the heat exchanger assembly includes:

[0015] An evaporator, wherein the evaporator is disposed within the housing;

[0016] Electrical components are located on one side of the evaporator and correspond vertically to the electrical box assembly.

[0017] According to the technical solutions provided in certain embodiments of this application, the wind turbine assembly includes:

[0018] A drive motor is fixed in the first space, and an impeller is fixed on the drive shaft of the drive motor.

[0019] A volute is fitted over the outside of the impeller and is used to guide the airflow generated by the rotation of the impeller.

[0020] According to the technical solutions provided in some embodiments of this application, a water receiving tray is provided below the heat exchanger assembly, and the water receiving tray is used to collect condensate.

[0021] According to the technical solutions provided in certain embodiments of this application, a return air vent is provided on the housing corresponding to the heat exchanger assembly.

[0022] According to the technical solutions provided in certain embodiments of this application, an air outlet is provided on the housing corresponding to the fan assembly.

[0023] The technical solutions provided in this application have the following advantages compared with the prior art:

[0024] This application provides a novel air-cooled cabinet device, including a housing with a first region at the top. A heat exchanger assembly is also provided inside the housing, located below the first region. An electrical box assembly is located within the first region. By placing the electrical box assembly within the first region at the top of the housing, workers do not need to bend over to operate it during disassembly and maintenance, greatly improving operational convenience. Furthermore, since the electrical box assembly is positioned above the heat exchanger assembly, cleaning the evaporator or the generation of condensate on the evaporator will not affect the electrical box assembly, avoiding the risk of water ingress and short circuits. Moreover, moving the electrical box assembly from the return air area to the first region avoids obstructing the evaporator and does not affect its heat exchange area, thereby improving the cooling efficiency of the air-cooled cabinet. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0028] Figure 1 This is a schematic diagram of the structure of a novel air-cooled cabinet device provided in an embodiment of this application;

[0029] Figure 2 This is a structural schematic diagram of the housing and electrical box assembly of a novel air-cooled cabinet device provided in an embodiment of this application.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Shell; 2. Heat exchanger assembly; 3. Electrical box assembly; 4. Fan assembly; 5. Cover; 11. First space; 12. Second space; 13. Air outlet; 21. Evaporator; 22. Electronic expansion valve; 31. Box body; 32. First wiring hole; 41. Drive motor; 42. Impeller; 43. Volute; 51. Second wiring hole. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] The following disclosure provides numerous different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0034] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0035] As mentioned in the background section, in order to solve the technical problems of inconvenience in disassembling and repairing the electrical box assembly 3 and the risk of water ingress caused by the layout of the air-cooled cabinet in the prior art, this application provides a new type of air-cooled cabinet device, which can make the position of the electrical box assembly 3 convenient for workers to disassemble and repair, and at the same time avoid the risk of water ingress into the electrical box assembly 3 when cleaning the evaporator 21.

[0036] This embodiment provides a novel air-cooled cabinet device, including:

[0037] Housing 1, the top of housing 1 has a first region;

[0038] Heat exchanger assembly 2 is disposed inside the housing 1 and located below the first region;

[0039] Electrical box assembly 3 is located in the first area.

[0040] like Figure 1 As shown, the air-cooled cabinet is approximately rectangular in shape. The shell 1 is the outer shell of the air-cooled cabinet. The internal space of the shell 1 can be divided into a return air zone and a cold air zone. The first zone is located at the top of the internal space of the shell 1, and the cold air zone is located within the first zone. The heat exchanger assembly 2 is located inside the shell 1, below the first zone. After the gas enters the return air zone below the internal space of the shell 1 through the return air inlet, it exchanges heat with the heat exchanger assembly 2. The gas with a lower temperature enters the cold air zone and is then discharged from the air outlet 13 under the drive of the fan. The electrical box assembly 3 is also located in the first zone, above the heat exchanger assembly 2, and is the core control unit of the air-cooled cabinet's refrigeration system.

[0041] By setting the electrical box assembly 3 in the first area at the top of the housing 1, workers do not need to bend over to operate the electrical box assembly 3 during disassembly and maintenance, which greatly improves the convenience of operation. At the same time, since the electrical box assembly 3 is set above the heat exchanger assembly 2, it will not affect the electrical box assembly 3 when cleaning the evaporator 21 or when condensation is generated on the evaporator 21, thus avoiding the risk of short circuit caused by water entering the electrical box assembly 3. In addition, the electrical box assembly 3 is moved from the return air area to the first area, which avoids obstructing the evaporator 21 and does not affect the heat exchange area of ​​the evaporator 21, thereby improving the cooling efficiency of the air-cooled cabinet.

[0042] In a preferred embodiment, the first region includes:

[0043] First space 11, the first space 11 is equipped with fan assembly 4;

[0044] The second space 12 is located on one side of the first space 11 and is separated from the first space 11. The second space 12 is equipped with an electrical box assembly 3.

[0045] like Figure 1As shown, in the internal layout of conventional air-cooled cabinets, to avoid the inconvenience of maintenance and the risk of water ingress short circuits caused by placing the electrical box assembly 3 in the return air area, some air-cooled cabinets place the electrical box assembly 3 in the cold air area above the heat exchanger assembly 2. However, water vapor condenses easily on the electrical box assembly 3 located in the cold air area, which also poses a risk of water ingress short circuits. To solve the problem of water vapor condensation on the electrical box assembly 3, multiple layers of thermal insulation sponge are pasted on the outside of the electrical box assembly 3. However, this approach not only reduces production efficiency but also obstructs gas flow, which is not conducive to improving the efficiency of the air-cooled cabinet. The first space 11 and the second space 12 are distributed horizontally. 1 refers to the aforementioned cold air zone. After exchanging heat with the heat exchanger assembly 2, the gas in the return air zone enters the first space 11. The fan assembly 4 is located in the first space 11 and is used to drive the low-temperature gas in the first space 11 to be discharged from the air outlet 13. The second space 12 is located on one side of the first space 11 and is not connected to the first space 11. The electrical box assembly 3 is located in the second space 12, which avoids the water vapor condensation problem caused by directly placing the electrical box assembly 3 in the cold air zone. There is no need to attach sponge to the outside of the electrical box assembly 3, thereby improving production efficiency. At the same time, the electrical box assembly 3, which is set separately from the fan assembly 4 in the first space 11, no longer affects the gas flow in the cold air zone.

[0046] In a preferred embodiment, a cover 5 is provided in the first region, a fan assembly 4 is provided on one side of the cover 5, and an electrical box assembly 3 is provided inside the cover 5.

[0047] like Figure 1 and Figure 2 As shown, the cover 5 is a cuboid structure and is located in the first area. One side of the cover 5 in the horizontal direction is the first space 11, and the internal space of the cover 5 is the second space 12. The electrical box assembly 3 is located inside the cover 5, which can prevent the low temperature gas in the first space 11 from causing the temperature of the electrical box assembly 3 to drop and thus generate water vapor condensation. At the same time, by setting the cover 5 to separate the fan assembly 4 and the electrical box assembly 3, it also prevents the electrical box assembly 3 from affecting the working efficiency of the fan assembly 4.

[0048] In a preferred embodiment, the electrical box assembly 3 includes a box body 31, and a first gap exists between the box body 31 and the cover 5.

[0049] like Figure 2As shown, the box 31 is also a cuboid structure and serves as the outer shell of the electrical box assembly 3. The box 31 typically houses key components such as a compressor starter, overload protector, thermostat, relay, and circuit board. Internal wiring connects to the power supply, compressor, fan motor, and lighting, ensuring coordinated operation of all components. It also includes fuses, circuit breakers, or thermal protectors to cut off power in case of abnormal current, preventing equipment damage or fire. The box 31 is located inside the housing 5, and a first gap exists between the outer surface of the box 31 and the inner surface of the housing 5. This first gap reduces the efficiency of heat conduction, preventing the low-temperature gas in the first space 11 from affecting the electrical box assembly 3 and causing water vapor condensation inside the electrical box assembly 3.

[0050] In a preferred embodiment, the bottom of the housing 31 is provided with a plurality of first wire passage holes 32, and the bottom of the cover 5 is provided with a plurality of second wire passage holes 51 corresponding to the first wire passage holes 32.

[0051] like Figure 2 As shown, there are three first wire-passing holes 32 and three second wire-passing holes 51. The three first wire-passing holes 32 are opened horizontally at the bottom of the box 31, and the three second wire-passing holes 51 are also opened horizontally at the bottom of the cover 5, corresponding one-to-one with the three first wire-passing holes 32. The first wire-passing holes 32 and the second wire-passing holes 51 are used for wire harnesses to pass through, so that the electrical box assembly 3 can be electrically connected to the power supply and the electrical components inside the air-cooled cabinet. Furthermore, the first wire-passing holes 32 and the second wire-passing holes 51 can also be used to heat up the motherboard inside the electrical box assembly 3.

[0052] In a preferred embodiment, the heat exchanger assembly 2 includes:

[0053] Evaporator 21, which is disposed inside the housing 1;

[0054] Electrical components are located on one side of the evaporator 21 and correspond vertically to the electrical box assembly 3.

[0055] like Figure 1As shown, the evaporator 21 is located inside the casing 1, below the first area. The evaporator 21 is inclined, forming an angle with the horizontal direction. Below the evaporator 21 is the return air zone of the air-cooled unit, and above it is the cold air zone of the air-cooled unit. The evaporator 21 absorbs heat from the gas, lowering its temperature. After the gas enters the return air zone below the internal space of the casing 1 through the return air inlet, it exchanges heat with the evaporator 21. The cooled gas then enters the cold air zone and is discharged from the outlet 13 under the drive of the fan. Electrical components include an electronic expansion valve 22 and a temperature sensor. The electronic expansion valve 22 is an electronically controlled throttling device used to precisely regulate the refrigerant flow rate, improving the energy efficiency and stability of the refrigeration system. Compared with traditional capillary or thermostatic expansion valves, the electronic expansion valve 22 has a faster response speed, higher control precision, and intelligent adjustment capabilities. It is widely used in high-end refrigeration systems such as inverter air conditioners, commercial refrigeration equipment, and cold chain freezers. By adjusting the valve opening, the refrigerant flow rate is controlled, allowing the evaporator 21 to... 1. To achieve optimal heat exchange efficiency and avoid problems of excessive refrigerant (liquid slugging in the compressor) or insufficient refrigerant (incomplete evaporation), the electronic expansion valve 22 can also be combined with a temperature sensor and a microprocessor (such as a PLC or frequency converter) to achieve PID regulation and optimize system operation. The temperature sensor is a key component in the refrigeration system for temperature sensing and pressure transmission. It is usually used in conjunction with the electronic expansion valve 22 or a thermostat. By sensing the outlet temperature of the evaporator 21, it controls the opening of the electronic expansion valve 22, regulates the refrigerant flow, ensures efficient system operation, and prevents the evaporator 21 from frosting or overheating, maintains the optimal superheat (usually 3-8℃), and adapts to load changes, automatically adjusting the flow rate when the refrigeration system operating environment changes. By aligning the electronic expansion valve 22 and the temperature sensor and other electrical components vertically with the electrical box assembly 3, the required wiring harness length is shortened when the electronic expansion valve 22 and the temperature sensor and other electrical components are electrically connected to the electrical box assembly 3 via a wiring harness, and the wiring method is also simpler.

[0056] In a preferred embodiment, the fan assembly 4 includes:

[0057] A drive motor 41 is fixed inside the first space 11, and an impeller 42 is fixed on the drive shaft of the drive motor 41.

[0058] The volute 43 is fitted outside the impeller 42 and is used to guide the airflow generated by the rotation of the impeller 42.

[0059] like Figure 1As shown, the drive motor 41 is disposed in the first space 11 and fixed to the housing 1. The drive motor 41 adopts the dual-output shaft motor in the prior art. The drive motor 41 has two drive shafts, which extend horizontally to both sides. Two impellers 42 are respectively sleeved and fixed on the two drive shafts. The volute 43 is approximately spiral in structure. The two volutes 43 are respectively sleeved on the outside of the two impellers 42. They are used to collect high-speed gas and convert its kinetic energy into static pressure, while guiding the gas to be discharged in an orderly manner. By using Bernoulli's principle, the high-speed gas thrown out by the impellers 42 is decelerated, the outlet static pressure is increased, the turbulence loss is reduced, and the gas flows out smoothly from the outlet of the volute 43, while protecting the impellers 42.

[0060] In a preferred embodiment, a water receiving tray is provided below the heat exchanger assembly 2 for collecting condensate.

[0061] like Figure 1 As shown, the water receiving tray is located below the heat exchanger and extends horizontally. The vertical projection of the heat exchanger corresponds to the vertical projection of the water receiving tray, so that the condensate generated on the heat exchanger can be collected by the water receiving tray after falling.

[0062] In a preferred embodiment, a return air vent is provided on the housing 1 corresponding to the heat exchanger assembly 2.

[0063] In a preferred embodiment, an air outlet 13 is provided on the housing 1 corresponding to the fan assembly 4.

[0064] like Figure 1 As shown, the return air inlet is located on the shell 1, corresponding to the evaporator 21, and is located at the lower part of the shell 1. The air outlet 13 is located on the shell 1, corresponding to the fan assembly 4, and is located at the top of the shell 1. The return air inlet and the air outlet 13 are also provided with return air grilles and air outlet grilles, respectively. After the gas enters the return air zone through the return air inlet, it exchanges heat with the evaporator 21. The gas with the reduced temperature enters the upper cold air zone and is discharged from the air outlet 13 under the drive of the fan assembly 4.

[0065] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0066] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0067] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A novel air-cooled cabinet device, characterized in that, include: The housing (1) has a first region on its top; Heat exchanger assembly (2), which is disposed within the housing (1) and located below the first region; Electrical box assembly (3) is located in the first area.

2. The novel air-cooled cabinet device according to claim 1, characterized in that, The first region includes: First space (11), the first space (11) is equipped with fan assembly (4); The second space (12) is located on one side of the first space (11) and is separated from the first space (11). The electrical box assembly (3) is provided in the second space (12).

3. The novel air-cooled cabinet device according to claim 2, characterized in that, The first area is provided with a cover (5), the fan assembly (4) is provided on one side of the cover (5), and the electrical box assembly (3) is provided inside the cover (5).

4. The novel air-cooled cabinet device according to claim 3, characterized in that, The electrical box assembly (3) includes a box body (31) with a first gap between the box body (31) and the cover (5).

5. A novel air-cooled cabinet device according to claim 4, characterized in that, The bottom of the box body (31) is provided with a plurality of first wire passage holes (32), and the bottom of the cover (5) is provided with a plurality of second wire passage holes (52) corresponding to the first wire passage holes (32).

6. A novel air-cooled cabinet device according to claim 5, characterized in that, The heat exchanger assembly (2) includes: Evaporator (21), the evaporator (21) is disposed inside the housing (1); Electrical components are located on one side of the evaporator (21) and correspond vertically to the electrical box assembly (3).

7. A novel air-cooled cabinet device according to claim 2, characterized in that, The wind turbine assembly (4) includes: A drive motor (41) is fixed in the first space (11), and an impeller (42) is fixed on the drive shaft of the drive motor (41). The volute (43) is fitted over the outside of the impeller (42) and is used to guide the airflow generated by the rotation of the impeller (42).

8. The novel air-cooled cabinet device according to claim 1, characterized in that, The heat exchanger assembly (2) is provided with a water receiving tray below it, which is used to collect condensate.

9. A novel air-cooled cabinet device according to claim 1, characterized in that, The housing (1) has a return air vent corresponding to the heat exchanger assembly (2).

10. A novel air-cooled cabinet device according to claim 1, characterized in that, The first area includes: a first space (11), in which a fan assembly (4) is provided; and a second space (12), which is located on one side of the first space (11) and is separated from the first space (11), in which the electrical box assembly (3) is provided. An air outlet (13) is provided on the housing (1) corresponding to the fan assembly (4).

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