A vertical industrial refrigeration unit

Abstract

This utility model relates to a vertical industrial refrigeration device, including a condenser cabinet. The upper front face of the condenser cabinet has an openable cabinet door and an embedded handle. A microcontroller is installed inside the condenser cabinet, and a temperature sensor electrically connected to it is installed on the upper front face. A sealed, adjustable vane-type air valve is located in the lower middle part of the front face. Two fan shafts are arranged along the left-right direction behind the valve and connected to cooling fans. Linkage plates are located on both sides of the front face of the condenser cabinet, with several drive shafts fixed inside and connected to the air valve vanes. A protective cover is located on the front side of the linkage plates. The microcontroller controls the start / stop or speed of the cooling fans based on the temperature detected by the temperature sensor and drives the drive shafts to adjust the air valve opening, achieving intelligent monitoring and adjustment of the environment inside the condenser cabinet. This novel device uses a microcontroller and temperature sensor inside the condenser cabinet to control the fan and air valve opening, automatically matching the airflow with the air outlet channel. The front cabinet door, with its embedded handle, sealing strip, and protective cover, features a compact structure, convenient maintenance, and easy operation.

Description

Technical Field

[0001] This utility model relates to the field of industrial refrigeration technology, specifically a vertical industrial refrigeration device. Background Technology

[0002] Vertical industrial refrigeration units are mainly used for process cooling and equipment heat dissipation in industrial production. They reduce the temperature of process media or circulating water through compression refrigeration cycles, ensuring that the equipment operates continuously and stably at a suitable temperature, preventing performance degradation and failures caused by overheating, and helping to improve product quality and the production environment. These units are usually composed of components such as compressors, condensers, throttling elements, and evaporators, and are widely used in process cooling systems in industries such as chemical, food, and electronics.

[0003] Common vertical industrial refrigeration units typically dissipate heat through fans or simple ventilation structures inside the condenser cabinet. The airflow is usually a fixed value, making it difficult to adjust in real time according to the internal temperature of the condenser cabinet. This can easily lead to localized overheating or undercooling. The condenser cabinet door structure has insufficient sealing, allowing dust and hot, humid air from the outside to easily enter. At the same time, the air duct adjustment mechanism and maintenance structure are not perfect, the front maintenance space is limited, and disassembly and assembly are cumbersome, causing inconvenience to the long-term stable operation and maintenance of the equipment. Therefore, how to provide a vertical industrial refrigeration unit with a compact structure that can automatically adjust the airflow according to the internal temperature of the condenser cabinet, while also having good sealing and convenient front maintenance, has become a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a vertical industrial refrigeration device. A microcontroller, in conjunction with a temperature sensor, links the fan and air valve to achieve airflow matching. The cabinet doors and windows are sealed with protective covers, resulting in a compact structure that facilitates convenient and safe maintenance. This design solves common problems in existing vertical industrial refrigeration devices, such as localized overheating inside the condenser cabinet, high energy consumption and noise due to fixed airflow, poor sealing of the condenser cabinet door, and inconvenient front maintenance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vertical industrial refrigeration device, including a condenser cabinet and an openable cabinet door installed on the upper front surface of the condenser cabinet. The front end of the cabinet door is provided with an embedded handle. A microcontroller is installed inside the condenser cabinet. A temperature sensor electrically connected to the microcontroller is installed on the upper front surface of the condenser cabinet. A sealed regulating vane type air valve is provided in the lower middle part of the front surface of the condenser cabinet. Two fan shafts are arranged in the left and right directions behind the sealed regulating vane type air valve inside the condenser cabinet. A cooling fan is connected to each fan shaft. The condenser cabinet is used to install the condenser and its heat dissipation and control components in the vertical industrial refrigeration device, constituting the condenser cabinet unit of the device. A linkage plate is installed on each side of the front face of the condenser cabinet. Several drive shafts are fixedly connected to the inner side of the linkage plate. The end of the drive shaft away from the linkage plate is connected to the blade of the sealing regulating vane damper. A protective cover is set on the front side of the linkage plate. The microcontroller controls the start, stop or speed of the cooling fan according to the internal temperature of the condenser cabinet detected by the temperature sensor, and drives the drive shaft to rotate through the drive mechanism to adjust the opening of the sealing regulating vane damper, thereby enabling intelligent monitoring and adjustment of the internal environment of the condenser cabinet.

[0006] Furthermore, there are two fan shafts, arranged parallel to each other along the left and right sides of the condenser cabinet, with the two cooling fans located on the left and right sides behind the sealed regulating vane type air valve, respectively.

[0007] Furthermore, the sealed regulating vane type air valve includes a rectangular frame set on the front face of the condenser cabinet and multiple vanes that are rotatably set in the horizontal direction. Each vane is rotatably connected to the frame through a rotating shaft and the edge of the vane is provided with an elastic sealing strip.

[0008] Furthermore, the linkage plate is a strip-shaped component arranged vertically along the front face of the condenser cabinet, and three drive shafts are arranged at equal intervals along the height direction of the linkage plate, with each drive shaft rigidly connected to the corresponding blade.

[0009] Furthermore, a protective cover is fixed to the front side of the linkage plate by fasteners. The protective cover is a long strip plate that covers the outer end of the drive shaft.

[0010] Furthermore, the microcontroller has multiple preset temperature thresholds. When the temperature detected by the temperature sensor is in different temperature ranges, the microcontroller controls the cooling fan to run at different speeds and controls the drive mechanism to adjust the opening of the sealing regulating vane type air valve.

[0011] Furthermore, the cabinet door is installed on the upper part of the condenser cabinet via a hinged structure, and the front face of the cabinet door is equipped with an embedded handle, and the perimeter of the cabinet door is equipped with a sealing strip.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects: 1. By installing a microcontroller inside the condenser cabinet and electrically connecting it to the temperature sensor on the upper front of the condenser cabinet, and arranging two fan shafts and a cooling fan in the left and right directions behind the sealed regulating vane damper, the opening angle of the damper blades can be adjusted in conjunction with the linkage plates and drive shafts on both sides. This allows the air supply volume and air outlet duct opening inside the condenser cabinet to be adjusted in conjunction with the internal temperature of the condenser cabinet, thereby making the temperature distribution inside the condenser cabinet more uniform, avoiding local overheating or overcooling, and reducing unnecessary air volume output while meeting the heat dissipation requirements. It has the advantages of high temperature control accuracy, fast response speed and good energy saving effect. 2. An openable cabinet door is installed on the upper front surface of the condenser cabinet. The front of the cabinet door has an embedded handle and is equipped with sealing strips around it. This allows the operator to directly open the cabinet door for observation and maintenance from the front of the condenser cabinet, while ensuring the airtightness of the upper front area of ​​the condenser cabinet when closed. The sealing and adjusting vane type air valve achieves synchronous rotation of multiple vanes through a linkage plate and multiple drive shafts. A protective cover is installed on the front side of the linkage plate to cover the outer end of the drive shaft. The overall structure is compact, easy to install and disassemble, and improves the safety and protection of the linkage mechanism, which is beneficial for later maintenance and long-term reliable operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded structural diagram of the present invention; Figure 3 This is a three-dimensional structural diagram showing the location of the microcontroller and temperature sensor of this utility model. Figure 4 This is a three-dimensional structural diagram of the sealing and regulating blade type air valve assembly of this utility model; Figure 5 This is a three-dimensional structural diagram of the location of the cooling fan in this utility model.

[0014] In the diagram: 1. Condenser cabinet; 2. Cabinet door; 3. Embedded handle; 4. Microcontroller; 5. Temperature sensor; 6. Sealed regulating vane damper; 7. Drive shaft; 8. Linkage plate; 9. Protective cover; 10. Cooling fan; 11. Fan shaft. Detailed Implementation

[0015] 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.

[0016] Please see Figures 1-5This embodiment of a vertical industrial refrigeration device includes a condenser cabinet 1 and an openable cabinet door 2 installed on the upper front surface of the condenser cabinet 1. The front end of the cabinet door 2 is provided with an embedded handle 3. A microcontroller 4 is installed inside the condenser cabinet 1. A temperature sensor 5 electrically connected to the microcontroller 4 is installed on the upper front surface of the condenser cabinet 1. A sealed regulating vane type air valve 6 is provided in the lower middle part of the front surface of the condenser cabinet 1. Two fan shafts 11 are arranged in the left-right direction behind the sealed regulating vane type air valve 6 inside the condenser cabinet 1. A cooling fan 10 is connected to each fan shaft 11.

[0017] In this embodiment, the microcontroller 4 inside the condenser cabinet 1, in conjunction with the temperature sensor 5, controls the opening of the cooling fan 10 and the sealed regulating vane type air valve 6 according to the temperature of the condenser cabinet 1. Combined with the air delivery of the left and right fan shafts 11 and the synchronous adjustment of the linkage plate 8 and drive shaft 7, the air volume and the air outlet channel are automatically matched. The upper front end of the condenser cabinet 1 is provided with a cabinet door 2 with an embedded handle 3 and a sealing strip. The front side of the linkage plate 8 is provided with a protective cover 9, making the overall structure compact, with good sealing performance, easy to observe and inspect, safe to operate, and convenient to maintain.

[0018] Please see Figures 1-5 In this embodiment, the temperature-controlled fan and air valve are linked to automatically adjust the air volume and temperature, achieving energy saving and stability. In this embodiment, a linkage plate 8 is installed on each side of the front face of the condenser cabinet 1. Several drive shafts 7 are fixedly connected to the inner side of the linkage plate 8. The end of the drive shaft 7 away from the linkage plate 8 is connected to the blade of the sealed regulating vane air valve 6. A protective cover 9 is provided on the front side of the linkage plate 8. The microcontroller 4 controls the start, stop or speed of the cooling fan 10 according to the internal temperature of the condenser cabinet 1 detected by the temperature sensor 5, and drives the drive shaft 7 to rotate through the drive mechanism to adjust the opening of the sealed regulating vane air valve 6, thereby enabling intelligent monitoring and adjustment of the internal environment of the condenser cabinet 1.

[0019] In this embodiment, the linkage plate 8 drives multiple drive shafts 7 to rotate synchronously, enabling a set of damper blades to open and close uniformly to regulate airflow. The drive shafts 7 directly transmit the rotation of the linkage plate 8 to the blades of the sealed regulating blade damper 6, ensuring stable and reliable angle adjustment. The sealed regulating blade damper 6 controls the size of the inlet and outlet air passages by changing the blade opening and achieves a better sealing effect when needed. The protective cover 9 shields the exposed parts of the linkage plate 8 and drive shafts 7 to prevent collisions and accidental contact, while also reducing dust ingress. The temperature sensor 5 is used to collect the internal temperature signal of the condenser cabinet 1 in real time, and the microcontroller 4 controls the start of the cooling fan 10 according to the temperature change. The system stops and rotates, outputs a drive signal to drive the drive mechanism, and the cooling fan 10 provides forced airflow to remove heat. The drive mechanism drives the drive shaft 7 to change the opening of the air valve according to the control requirements of the microcontroller 4. Through the cooperation of the above components, the air volume and temperature are automatically adjusted to improve heat dissipation efficiency, reduce energy consumption, and reduce manual intervention. The drive mechanism includes a motor and a transmission assembly. The motor is fixedly installed inside the condenser cabinet 1. A crank is provided on the output shaft of the motor. The crank is connected to the connecting rod connected to the linkage plate 8. When the motor rotates, it drives the linkage plate 8 to rotate, thereby driving each drive shaft 7 to rotate synchronously to change the opening of the sealing regulating vane type air valve 6.

[0020] It should be noted that the sealed regulating vane damper 6 includes a rectangular frame mounted on the front face of the condenser cabinet 1 and multiple blades that rotate horizontally. Each blade is rotatably connected to the frame via a rotating shaft, and the blade edges are equipped with elastic sealing strips. The linkage plate 8 is a strip-shaped component arranged vertically along the front face of the condenser cabinet 1. Three drive shafts 7 are arranged at equal intervals along the height direction of the linkage plate 8, and each drive shaft 7 is rigidly connected to the corresponding blade. The microcontroller 4 has multiple preset temperature thresholds. When the temperature detected by the temperature sensor 5 is within different temperature ranges, the microcontroller 4 controls the cooling fan 10 to run at different speeds and controls the drive mechanism to adjust the opening of the sealed regulating vane damper 6. The rectangular frame serves to support and fix the overall structure of the sealing and regulating vane damper 6. The blades open and close the air outlet channel by rotating the shaft. The elastic sealing strip on the edge of the blade reduces air leakage and dust entry when the blade is closed. The linkage plate 8 drives multiple drive shafts 7 to rotate synchronously, so that the blades can adjust the angle uniformly. The drive shafts 7 rigidly connect the blades to ensure that the adjustment process is stable and reliable. The microcontroller 4 has multiple temperature thresholds and combines the temperature signal fed back by the temperature sensor 5 to automatically select the corresponding gear to control the speed of the cooling fan 10 and drive the sealing and regulating vane damper 6 to adjust the opening, so that the air volume and heat dissipation capacity are matched, the internal temperature of the condenser cabinet 1 is kept relatively constant, and energy consumption is reduced and the need for manual intervention is reduced.

[0021] Please see Figures 1-4In this embodiment, the front cabinet door 2 and the protective cover 9 have a compact structure, good sealing, and are easy to inspect and maintain. In this embodiment, the front side of the linkage plate 8 is fixed with the protective cover 9 by fasteners. The protective cover 9 is a long strip plate covering the outer end of the drive shaft 7. The cabinet door 2 is installed on the upper end of the condenser cabinet 1 through a hinge structure. The front end face of the cabinet door 2 is provided with an embedded handle 3, and the periphery of the cabinet door 2 is provided with a sealing strip.

[0022] In this embodiment, the protective cover 9 is used to shield the outer end of the drive shaft 7 to reduce collisions and accidental contact with foreign objects and to reduce the risk of dust entering the linkage components. The fastener is used to reliably fix the protective cover 9 and facilitates disassembly and replacement later. The cabinet door 2 provides an opening channel for observation and maintenance of the equipment inside the condenser cabinet 1. The hinged structure allows the cabinet door 2 to be opened and closed flexibly, reducing the operating force. The embedded handle 3 makes it easy for the operator to grip and open and close the cabinet door 2 and avoids the handle protruding outwards, which affects passage and placement. The sealing strip improves the airtightness and dustproof effect at the contact point when the cabinet door 2 is closed, thus improving the stability of the internal environment of the condenser cabinet 1.

[0023] To achieve synchronous and precise driving of multiple blades, this device is equipped with a mechanical transmission mechanism. This mechanism includes a drive motor controlled by a microcontroller 4, a gear, a rack, a linkage plate 8, multiple drive shafts 7, and a corresponding number of crank connecting rods; The drive motor is fixedly installed on the inner side wall of the condenser cabinet 1, with its output shaft extending horizontally and the gear fixedly installed at the end. A rack is fixedly fixed on the inner side wall of the condenser cabinet 1 and meshes with the gear. The linkage plate 8 is a long strip of metal plate, which is vertically arranged along the front end face of the condenser cabinet 1. Its back is fixedly connected to the rack by bolts, and its upper and lower ends are connected to the vertical guide rail fixed on the inner wall of the cabinet by sliders, thus constraining it to slide only in the vertical direction. Three drive shafts 7 are vertically fixed at equal intervals along the vertical direction on the linkage plate 8. The front end of each drive shaft 7 is fixed to the linkage plate 8, and the rear end extends to the sealing regulating vane type air valve 6. A crank connecting rod is hinged to the rear end of each drive shaft 7, and the other end of the crank connecting rod is hinged to the rotating shaft arm of the corresponding air valve vane. All crank connecting rods are exactly the same size to ensure synchronous movement. A protective cover 9 is fixed to the front side of the linkage plate 8 by fasteners. The protective cover 9 is a long strip plate covering the outer end of the drive shaft 7 to protect the transmission components. The microcontroller 4 has multiple preset temperature thresholds. When the temperature detected by the temperature sensor 5 is in different ranges, the microcontroller 4 controls the cooling fan 10 to run at different speeds and synchronously controls the drive motor to adjust the opening of the sealing regulating vane type air valve 6.

[0024] The working principle of the above embodiments is as follows: The heat dissipation efficiency of this device relies on the forced convection air duct. The physical path of this air duct is as follows: When the blades of the sealed regulating vane type air valve 6 are opened under the action of the drive mechanism, ambient temperature air from the outside environment is introduced and becomes the main cooling medium. The air first enters the condenser cabinet 1 through the air valve opening in the lower part of the front face, and flows over the surface of the condenser coil, compressor and other heat-generating components installed in the cabinet. During this process, the air absorbs the heat emitted by the above components and its own temperature rises. Subsequently, the heated air is forced to the area where the two cooling fans 10 located behind the air valve are located under the negative pressure suction. The two cooling fans 10 are respectively installed on the left and right parallel fan shafts 11. They work synchronously to efficiently exhaust the hot air that has completed heat exchange from the pre-set exhaust port at the rear or top of the cabinet to the external environment, thereby forming a continuous and directional airflow inside the cabinet. The core of the entire heat dissipation channel lies in the position and functional coordination between the air valve, the heat source and the fan: the sealed regulating blade air valve 6 is the airflow inlet and flow regulating valve, the heat-generating component inside the cabinet is the heat exchange area, and the cooling fan 10 is the power source for airflow drive and hot air exhaust. The microcontroller 4 is used to accurately match the cooling air volume required under different heat loads. When enhanced heat dissipation is required, the system simultaneously opens the air valve and increases the fan speed to increase the intake of cold air and the exhaust speed of hot air; when the heat load decreases, the air valve is closed and the fan speed is reduced to maintain heat dissipation balance while reducing energy consumption and noise. Specifically, after the system is powered on, the temperature sensor 5 installed inside the cabinet starts working continuously, collecting real-time air temperature data inside the condenser cabinet 1 and immediately transmitting the signal to the microcontroller 4. The microcontroller 4 has multiple temperature thresholds pre-stored. The controller compares the received real-time temperature with these thresholds and, based on the comparison result, synchronously generates control commands for the cooling fan 10 and the damper drive motor.

[0025] The control logic for the cooling fan 10 is as follows: if the temperature is below the first threshold, it is controlled to stop or run at low speed; if the temperature is between the first and second thresholds, it runs at medium speed; if the temperature exceeds the second threshold, it starts the full-speed operation mode. The opening adjustment of the sealed regulating vane type damper 6 is performed by a mechanical transmission mechanism. This mechanism includes a drive motor, gears, racks, a linkage plate 8, a drive shaft 7, and a crank connecting rod. The drive motor is fixedly installed on the inner side wall of the condenser cabinet 1, with its output shaft extending horizontally and the gear fixedly installed at its end. A rack is vertically fixed on the inner side wall of the condenser cabinet 1 and meshes with the gear. The linkage plate 8 is a long strip of metal plate, whose back is fixedly connected to the rack by bolts, and its upper and lower ends are connected to vertical guide rails fixed on the inner wall of the cabinet by sliders, thus constraining it to slide only in the vertical direction. Multiple drive shafts 7 are fixedly and equally spaced vertically through the linkage plate 8. The front end of each drive shaft 7 is fixed to the linkage plate 8, and the rear end extends towards the sealing regulating vane damper 6. A crank connecting rod is hinged to the rear end of each drive shaft 7, and the other end of the crank connecting rod is hinged to the rotating shaft arm of the corresponding damper vane. All crank connecting rods are exactly the same size to ensure synchronized movement. When the microcontroller 4 needs to adjust the opening of the damper, it sends a command to the drive motor. The drive motor rotates, driving the gear to rotate, and the gear drives the rack to move in a vertical linear motion. The rack drives the linkage plate 8, which is fixed to it, to rise or fall synchronously along the guide rail. The movement of the linkage plate 8 drives all the drive shafts 7 to move in a linear motion together. Each drive shaft 7 converts this linear motion into the rotational motion of the corresponding damper blade shaft through the crank connecting rod at its end. Since all the drive shafts 7 are driven by the same linkage plate 8, all the damper blades open and close completely synchronously and at equal angles, thereby achieving stepless adjustment of the overall opening of the damper. Ultimately, the speed of the cooling fan 10 and the opening of the sealed regulating vane damper 6 are dynamically matched under the intelligent coordination of the microcontroller 4. When the temperature inside the cabinet rises, the system simultaneously increases the fan speed and the damper opening to accelerate heat dissipation; when the temperature drops, it simultaneously decreases the fan speed and the damper opening to save energy. This closed-loop control process runs continuously and automatically to maintain a stable temperature inside the cabinet. For routine maintenance, staff can open the upper cabinet door 2 through the embedded handle 3 to inspect electrical components such as the microcontroller 4 and drive motor. The protective cover 9, located at the front and covering the linkage plate 8 and drive shaft 7, effectively protects the mechanical transmission components. After disassembly, the gears, racks, connecting rods, and other mechanisms can be maintained or adjusted. The electrical and mechanical maintenance interfaces are separated and do not interfere with each other.

[0026] It should be noted that the control method of this utility model is controlled by a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming. The power supply is also common knowledge in the field. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail here.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vertical industrial refrigeration unit comprising a condenser cabinet (1); characterized in that: It also includes an openable cabinet door (2) installed on the front upper end of the condenser cabinet (1), with an embedded handle (3) on the front end of the cabinet door (2), a micro controller (4) installed inside the condenser cabinet (1), a temperature sensor (5) electrically connected to the micro controller (4) installed on the front upper end of the condenser cabinet (1), a sealed regulating vane type air valve (6) installed in the middle and lower part of the front end of the condenser cabinet (1), and two fan shafts (11) arranged in the left and right directions behind the sealed regulating vane type air valve (6) inside the condenser cabinet (1), with a cooling fan (10) connected to each fan shaft (11). A linkage plate (8) is installed on each side of the front face of the condenser cabinet (1). Several drive shafts (7) are fixedly connected to the inner side of the linkage plate (8). The end of the drive shaft (7) away from the linkage plate (8) is connected to the blade of the sealing regulating vane type air valve (6). A protective cover (9) is provided on the front side of the linkage plate (8). The micro controller (4) controls the start / stop or speed of the cooling fan (10) according to the internal temperature of the condenser cabinet (1) detected by the temperature sensor (5), and drives the drive shaft (7) to rotate through the drive mechanism to adjust the opening of the sealing regulating vane type air valve (6).

2. A vertical industrial refrigeration unit as claimed in claim 1, characterized in that: There are two fan shafts (11), which are arranged in parallel along the left and right directions of the condenser cabinet (1). The two cooling fans (10) are located on the left and right sides behind the sealed regulating blade type air valve (6).

3. A vertical industrial refrigeration unit as claimed in claim 1, wherein: The sealed regulating vane type air valve (6) includes a rectangular frame set on the front face of the condenser cabinet (1) and multiple blades that are rotated in the horizontal direction. Each blade is rotatably connected to the frame through a rotating shaft and the edge of the blade is provided with an elastic sealing strip.

4. A vertical industrial refrigeration unit as claimed in claim 1, wherein: The linkage plate (8) is a strip-shaped component arranged vertically along the front end face of the condenser cabinet (1). Three drive shafts (7) are arranged at equal intervals along the height direction of the linkage plate (8), and each drive shaft (7) is rigidly connected to the corresponding blade.

5. A vertical industrial refrigeration unit as claimed in claim 1, wherein: A protective cover (9) is fixed to the front side of the linkage plate (8) by fasteners. The protective cover (9) is a long strip plate that covers the outer end of the drive shaft (7).

6. A vertical industrial refrigeration unit as claimed in claim 1, characterized in that: The microcontroller (4) has multiple preset temperature thresholds. When the temperature detected by the temperature sensor (5) is in different temperature ranges, the microcontroller (4) controls the cooling fan (10) to run at different speeds and controls the drive mechanism to adjust the opening of the sealing regulating blade type air valve (6).

7. A vertical industrial refrigeration unit as claimed in claim 1, wherein: The cabinet door (2) is installed on the upper end of the condenser cabinet (1) through a hinge structure. The front end of the cabinet door (2) is provided with an embedded handle (3), and the cabinet door (2) is provided with a sealing strip around its perimeter.

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