Testing device for cabinet air conditioner

Abstract

The invention discloses a testing device for a cabinet air conditioner, and the device comprises a main testing unit which comprises a cabinet simulation box body, air channel circulation parts disposed at a pair of opposite sides of the cabinet simulation box body, an electric control part disposed outside the cabinet simulation box body, and a working condition simulation part disposed inside the cabinet simulation box body. And tested units are arranged on the other two opposite sides of the cabinet simulation box body in the main test unit, and cabinet air conditioners are mounted on the tested units. The problem that an existing testing mode cannot provide multiple testing working conditions for multiple cabinet air conditioners at the same time can be solved.

Description

Technical Field

[0001] This application relates to the technical field of air conditioner testing, and particularly to a testing device for cabinet air conditioners. Background Art

[0002] With the rapid development of industrial technology and the digital economy, cabinet air conditioners are increasingly widely used in cooling and heat dissipation fields such as communication base stations, power distribution cabinets, and energy storage. At the same time, the demand for performance and reliability testing of cabinet air conditioners is also continuously increasing. Therefore, a dedicated testing device for cabinet air conditioners is needed for long-term operation testing to verify its reliability and performance.

[0003] The existing testing methods for cabinet air conditioners mainly verify their performance through enthalpy difference laboratories or heat balance laboratories. However, these methods can only conduct short-term phased tests, cannot perform long-cycle operation verification, and cannot simulate various conditions in the actual application environment, such as outdoor high temperature, low temperature, humidity, etc. In addition, the existing testing methods also have the following limitations:

[0004] The existing testing methods cannot test two air conditioner units simultaneously because they cannot conduct comparative tests and cannot truly simulate the linkage control mode of the master-slave units, which brings great limitations to verifying the linkage control logic of cabinet air conditioners; and the existing testing devices have a relatively single way of adjusting working conditions and cannot flexibly simulate different loads and environmental conditions, which limits the testing efficiency and accuracy. Summary of the Invention

[0005] In view of this, the main purpose of this application is to provide a testing device for cabinet air conditioners, which is beneficial to solving the problem that the existing testing methods cannot provide multiple testing working conditions for multiple cabinet air conditioners simultaneously.

[0006] This application provides a testing device for cabinet air conditioners, which includes:

[0007] A main testing unit, which includes a cabinet simulation box body, air duct circulation components arranged on a pair of opposite sides of the cabinet simulation box body, electric control components arranged outside the cabinet simulation box body, and working condition simulation components arranged inside the cabinet simulation box body;

[0008] On the other pair of opposite sides of the cabinet simulation box body in the main testing unit, there are tested units, and the tested units are installed with cabinet air conditioners.

[0009] As described above, two DUTs are respectively arranged on two opposite sides of the cabinet simulation box to accommodate cabinet air conditioners, allowing two cabinet air conditioners to be tested simultaneously, facilitating performance comparison tests, and truly simulating the linkage control mode of the master and slave units; on the cabinet simulation box, the working condition simulation component can flexibly simulate different load conditions and ambient temperatures, making the adjustment of test working conditions more flexible, improving the test efficiency and saving test resources; the air duct circulation component provides a convenient channel for the air flow of the cabinet simulation box and the two cabinet air conditioners; the electric control component provides power support for the test working conditions.

[0010] Optionally, the cabinet simulation box includes: a plurality of cabinet side panels that enclose a three-dimensional box and are arranged in the middle of the base component; a plurality of corner columns that are respectively located between two adjacent cabinet side panels to connect the cabinet side panels; a cabinet top plate that is arranged at the top of the cabinet side panels; a base component that includes a cabinet bottom plate arranged at the bottom end of the cabinet side panels, and both ends of the cabinet bottom plate support the two cabinet air conditioners respectively.

[0011] As described above, by using the base component to support the entire three-dimensional box and the cabinet air conditioners at both ends respectively, and using the corner columns to connect adjacent cabinet side panels, the structural stability and strength of the entire test device can be greatly improved, and the test requirements of different models or sizes of cabinet air conditioners can also be adapted by replacing cabinet side panels of different sizes.

[0012] Optionally, the air duct circulation component includes: an air duct partition plate that is arranged on two opposite sides inside the cabinet simulation box, and an air duct air inlet is arranged at the lower end of the air duct partition plate; a middle partition plate that is perpendicular to the two air duct partition plates and is assembled in the middle of the lower ends of the two air duct partition plates, and the middle partition plate divides the air duct air inlet into two; an air duct top plate that is arranged at the top of the air duct partition plate, and a fan installation opening is arranged in the middle of the air duct top plate, and air duct air outlets are arranged at both ends of the air duct top plate.

[0013] As described above, air duct partition plates are respectively arranged on two opposite sides inside the cabinet simulation box, an air duct air inlet is arranged at the lower end of the air duct partition plate, the fan installation opening arranged in the middle of the air duct top plate is used to install a fan, air duct air outlets are arranged at both ends of the air duct top plate, and under the action of the fan, air can flow from the air ducts on both sides inside the cabinet simulation box from bottom to top; the middle partition plate is arranged in the middle of the two cabinet air conditioners, and the middle partition plate ensures that the two cabinet air conditioners will not blow against each other when sending air, ensuring that the air supply of the two does not interfere with each other.

[0014] Optionally, the working condition simulation component includes: an EC supply fan that is arranged at the fan installation opening in the middle of the air duct top plate; a heating component that is arranged on the air duct partition plates on both sides of the EC supply fan; a flow equalizing plate that is arranged below the EC supply fan; a temperature sensor that is arranged at the lower end of the flow equalizing plate.

[0015] As described above, the EC blower is installed at the upper end inside the cabinet simulation box. Working together with the heating component, the EC blower can flexibly adjust the speed and temperature of air flow. The flow equalizing plate can ensure the uniform flow of the heated air and guarantee the uniform temperature of the air flow entering the cabinet air conditioner. The temperature sensor monitors the return air temperature inside the cabinet simulation box to maintain stable test conditions.

[0016] Optionally, the electric control component includes: an electric control box with a water baffle at its top end, air guide grooves on both sides of the electric control box, exhaust fans on the air guide grooves, and a cable hole at the bottom side of the electric control box; a hand operator located at the upper end of the front panel of the electric control box, with a hand operator water baffle around it.

[0017] As described above, the electric control box water baffle and the hand operator water baffle can effectively prevent rainwater or other liquids from entering the inside of the electric control box, which is especially suitable for outdoor use scenarios. The setting of the air guide grooves and exhaust fans guides natural fresh air to enter the electric control box through one side of the air guide groove, takes away the heat generated inside, and then discharges it through the air guide groove on the other side, which can maintain the appropriate working temperature inside the electric control box and prevent equipment failures or performance degradation caused by overheating. The cable hole is provided at the bottom side of the electric control box, which is convenient for the access and arrangement of power lines and signal lines.

[0018] Optionally, the base component further includes: mounting brackets located on both sides of the cabinet bottom plate to support the cabinet air conditioner; support feet located at the lower end of the cabinet bottom plate; and universal wheels located at the lower end of the cabinet bottom plate and outside the support feet.

[0019] As described above, the mounting brackets provide support for the entire cabinet simulation box and the cabinet air conditioner. The universal wheels can make the entire test device conveniently moved to different positions or sites, greatly improving the flexibility and convenience of use of the test device; the support feet keep it horizontal and stable when the test device needs to be fixed in position.

[0020] Optionally, the unit under test includes a mounting plate, and mounting plates are assembled on the outer sides of two relatively arranged cabinet side panels, and the cabinet air conditioner is assembled on the mounting plates.

[0021] As described above, by assembling the mounting plates on the outside of the cabinet simulation box to install the cabinet air conditioner, the installation and disassembly are made simpler and more convenient.

[0022] Optionally, a cable through-hole is provided on the cabinet side panel equipped with the electric control box, and a through-hole corresponding to the cable through-hole is provided at the lower end of an air duct partition.

[0023] As described above, the cable through-hole provided on the side panel of the cabinet body is located below the electric control box, and a through-hole is provided at the corresponding position on the air duct partition board corresponding to the cable through-hole, avoiding messy cable layout, facilitating the neat access of the power line and the signal line to the electric control box, and optimizing the space utilization of the test device.

[0024] Optionally, cabinet air outlets and cabinet air inlets corresponding to the air return outlet and the air supply outlet of the cabinet air conditioner are provided on two opposite side panels of the cabinet body.

[0025] As described above, the air return outlet of the cabinet air conditioner corresponds to the cabinet air outlet on the side panel of the cabinet body, and the air supply outlet of the cabinet air conditioner corresponds to the cabinet air inlet on the side panel of the cabinet body. And according to the cabinet air conditioners with different sizes and interface requirements, the positions of the cabinet air inlet and the cabinet air outlet are reasonably planned, which can not only ensure the smooth inflow and outflow of air into and out of the cabinet air conditioner and the cabinet simulation box body, but also enable the test device to adapt to various models of cabinet air conditioners.

[0026] Optionally, the heating component includes an adjustable heater and a non-adjustable heater.

[0027] As described above, the heating power of the adjustable heater is adjusted according to the specific load conditions, and the non-adjustable heater provides a constant heat output, enabling the test device to cope with more diverse test environments and conditions and improving the flexibility of temperature control.

[0028] In summary, for the test device of the cabinet air conditioner provided by the present application, cabinet air conditioners are assembled on the outer sides of the cabinet side panels on the opposite sides of the cabinet simulation box. The air supply outlet at the lower end of the cabinet air conditioner corresponds to the cabinet air inlet at the lower end of the cabinet side panel, and the air return outlet at the upper end of the cabinet air conditioner corresponds to the cabinet air outlet at the upper end of the cabinet side panel. This test device can test two cabinet air conditioners simultaneously for comparative testing, and can also truly simulate the linkage control mode of the master-slave units. In the middle of the inner sides of the cabinet side panels on a pair of opposite sides, a middle partition board is provided to prevent the two relatively arranged cabinet air conditioners from interfering with each other when sending air into the cabinet simulation box. On the inner sides of the cabinet side panels on the other pair of opposite sides of the cabinet simulation box, air duct partition boards are respectively provided. The air duct partition boards and the cabinet side panels on the other opposite side together form the air ducts on both sides of the cabinet simulation box. At the upper end inside the cabinet simulation box, an air duct top board is provided. An EC air supply fan is provided in the middle of the air duct top board. Heating components are provided at the positions of the cabinet side panels around the EC air supply fan. A flow equalizing plate is provided below the EC air supply fan, and a temperature sensor is provided at the lower end of the flow equalizing plate. The setting at the upper end inside the cabinet simulation box can flexibly simulate different loads and environmental conditions, improving the test efficiency and saving test resources. The universal wheels provided at the lower end of the cabinet simulation box can enable the free movement of this test device, making the switching of the test scenarios more convenient. The support feet provided at the lower end of the cabinet simulation box make this test device more stable when placed statically. This test device adopts a waterproof structural design and can meet the requirements for long-term outdoor use. Description of the Drawings

[0029] The following further describes the technical features of the present application and the relationships between them with reference to the drawings. The drawings are exemplary. Some technical features are not shown in actual proportions, and in some drawings, technical features that are conventional in the technical field to which the present application belongs and are not essential for understanding and implementing the present application may be omitted, or technical features that are not essential for understanding and implementing the present application may be additionally shown. That is, the combination of the technical features shown in the drawings is not used to limit the present application. In addition, throughout the text of the present application, the content referred to by the same reference numerals is also the same. The specific description of the drawings is as follows:

[0030] Figure 1 is the external structural view of a test device for a cabinet air conditioner in the present application;

[0031] Figure 2 is the internal structural view of the air duct circulation component of a test device for a cabinet air conditioner in the present application;

[0032] Figure 3 is the internal structural view of a test device for a cabinet air conditioner in the present application;

[0033] Figure 4It is an external structural view of a cabinet simulation box of a test device for a cabinet air conditioner in the present application;

[0034] Figures 5a - 5b It is a schematic diagram of the air flow direction of a test device for a cabinet air conditioner in the present application.

[0035] Description of the reference numerals

[0036] 100 - Cabinet simulation box, 101 - Cabinet side panel, 102 - Corner column, 103 - Cabinet top plate, 104 - Base component, 1041 - Cabinet bottom plate, 1042 - Mounting bracket, 1043 - Support foot cup, 1044 - Universal wheel, 110 - Air duct partition, 111 - Middle partition, 112 - Air duct top plate, 120 - EC supply fan, 121 - Heating component, 122 - Flow equalizing plate, 123 - Temperature sensor, 130 - Electric control box, 1301 - Electric control box water baffle, 1302 - Air guide groove, 1303 - Exhaust fan, 131 - Hand operator, 1311 - Hand operator water baffle, 140 - Mounting plate, 201 - First cabinet air conditioner, 202 - Second cabinet air conditioner.

[0037] Through the above - mentioned drawings, specific embodiments of the present application have been shown, and there will be more detailed descriptions hereinafter. These drawings and written descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0038] The following elaborates on the preferred embodiments of the present application in conjunction with the drawings, so that the advantages and features of the present application can be more easily understood by those skilled in the art, thereby making the protection scope of the present application more clearly defined.

[0039] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non - exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device. Without further limitations, elements defined by the statement "including..." do not exclude the existence of additional identical elements in the process, method, article or device including the said elements.

[0040] In addition, in the description of this article, the orientation or positional relationship indicated by terms such as "middle", "front", "rear", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to this application.

[0041] Furthermore, terms such as "installed", "set up", "provided with", "connected", "linked", "socketed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, components or parts. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Next, specific embodiments will be used to describe in detail the technical solution of this application and how the technical solution of this application solves the above technical problems. The specific embodiments described below can be combined with each other to form new embodiments. For the same or similar ideas or processes described in one embodiment, they may not be repeated in some other embodiments. Next, the embodiments of this application will be described in conjunction with the drawings.

[0043] This application provides a test device for a cabinet air conditioner, which includes:

[0044] A main test unit, which includes a cabinet simulation box 100, air duct circulation components arranged on two opposite sides of the cabinet simulation box 100, an electric control component arranged outside the cabinet simulation box 100, and a working condition simulation component arranged inside the cabinet simulation box 100;

[0045] On the other two opposite sides of the cabinet simulation box 100 in the main test unit, there are test units to be measured, and the test units to be measured are installed with cabinet air conditioners.

[0046] Specifically, on two opposite sides of the cabinet simulation box 100, there are two test units to be measured respectively to accommodate cabinet air conditioners, allowing two cabinet air conditioners to be tested simultaneously, facilitating performance comparison tests, and also being able to truly simulate the linkage control mode of the master and slave machines; on the cabinet simulation box 100, the working condition simulation component can flexibly simulate different load conditions and environmental temperatures, making the adjustment of test working conditions more flexible, improving the test efficiency and saving test resources; the air duct circulation component provides a convenient channel for the air flow of the cabinet simulation box 100 and the two cabinet air conditioners; the electric control component provides power support for the test working conditions.

[0047] Optionally, the cabinet simulation box 100 includes: a cabinet side panel 101, which includes a plurality of them. The cabinet side panels 101 enclose a three-dimensional box and are arranged in the middle of the base component 104; corner columns 102, which include a plurality of them. The corner columns 102 are respectively located between two adjacent cabinet side panels 101 to connect the cabinet side panels 101; a cabinet top plate 103, which is arranged at the top of the cabinet side panel 101; a base component 104, which includes a cabinet bottom plate 1041 arranged at the bottom end of the cabinet side panel 101, and both ends of the cabinet bottom plate support two cabinet air conditioners respectively.

[0048] Specifically, by using the base component 104 to support the entire three-dimensional box and the cabinet air conditioners at both ends respectively, and using the corner columns 102 to connect the adjacent cabinet side panels 101, the structural stability and strength of the entire test device can be greatly improved. Moreover, different sizes of cabinet side panels 101 can be replaced to meet the test requirements of different models or sizes of cabinet air conditioners.

[0049] Optionally, the unit under test includes a mounting plate 140. The mounting plate 140 is assembled on the outer sides of two relatively arranged cabinet side panels 101, and the mounting plate 140 is equipped with a cabinet air conditioner.

[0050] Specifically, by assembling the mounting plate 140 on the outside of the cabinet simulation box 100 to install the cabinet air conditioner, the installation and disassembly are made simpler and more convenient.

[0051] Optionally, on two relatively arranged cabinet side panels 101, there are provided cabinet air outlets and cabinet air inlets corresponding to the air return outlet and air supply outlet of the cabinet air conditioner.

[0052] Specifically, the air return outlet of the cabinet air conditioner corresponds to the cabinet air outlet on the cabinet side panel 101, and the air supply outlet of the cabinet air conditioner corresponds to the cabinet air inlet on the cabinet side panel 101. And according to different sizes and interface requirements of the cabinet air conditioner, the positions of the cabinet air inlet and cabinet air outlet are reasonably planned, which can not only ensure that the air flow can smoothly flow into and out of the cabinet air conditioner and the cabinet simulation box 100, but also make the test device adaptable to various models of cabinet air conditioners.

[0053] As Figure 1 shown in the external structure of the test device for the cabinet air conditioner, the main test unit mainly includes a cabinet simulation box 100 arranged outside. On the left and right sides of the main test unit, there are respectively arranged units under test, which can be set as the first unit under test and the second unit under test. Among them, the first unit under test is equipped with a first cabinet air conditioner 201, and the second unit under test is equipped with a second cabinet air conditioner 202. The first cabinet air conditioner 201 and the second cabinet air conditioner 202 can be cabinet air conditioners of the same size or different sizes. The two units under test have a certain degree of flexibility and can accommodate cabinet air conditioners of different sizes at the same time; As Figure 1As shown, the size of the first cabinet air conditioner 201 is larger than that of the second cabinet air conditioner 202, that is, the first cabinet air conditioner 201 is a large-size air conditioner, and the second cabinet air conditioner 202 is a small-size air conditioner; the unit under test can be composed of the mounting plate 140, and the mounting plate 140 fixes the cabinet air conditioner by screws. The mounting plate 140 can be flexibly adjusted according to the installation sizes of the first cabinet air conditioner 201 and the second cabinet air conditioner 202, ensuring that the tests of different models of cabinet air conditioners are applicable, and the applicability is more extensive; the air return opening of the cabinet air conditioner is arranged at the upper end outside the cabinet simulation box body 100, and the air supply opening of the cabinet air conditioner is arranged at the lower end outside the cabinet simulation box body 100. The bottoms of the first cabinet air conditioner 201 and the second cabinet air conditioner 202 are flush. Therefore, the cabinet air inlets at the lower end of the cabinet simulation box body 100 are arranged oppositely and on the same horizontal plane, and the cabinet air outlets at the upper end of the cabinet simulation box body 100 are arranged oppositely. The two cabinet air outlets can be on the same horizontal plane of the cabinet simulation box body 100 (see Figure 5b the same height position shown). The air flow exiting from the cabinet air outlets arranged on the opposite sides of the cabinet simulation box body 100 enters the air return opening of the cabinet air conditioner. After being cooled by the cabinet air conditioner, it flows into the interior of the cabinet simulation box body 100 through the cabinet air inlet from the air supply opening of the cabinet air conditioner. The air flow between the cabinet air conditioner and the cabinet simulation box body 100 is as Figure 5b shown.

[0054] As Figure 1 and Figure 4 shown, the cabinet simulation box body 100 includes four cabinet side panels 101, a cabinet top plate 103, a cabinet bottom plate 1041, and corner columns 102. The four cabinet side panels 101 enclose a rectangular three-dimensional box body. The adjacent included angles between the four cabinet side panels 101 are connected by corner columns 102. The top of the four cabinet side panels 101 is covered with a cabinet top plate 103, and the bottom ends of the four cabinet side panels 101 are installed with a cabinet bottom plate 1041.

[0055] Optionally, the air duct circulation component includes: an air duct partition 110, which is arranged on the opposite sides inside the cabinet simulation box body 100, and an air duct air inlet is arranged at the lower end of the air duct partition 110; a middle partition 111, which is perpendicular to the two air duct partitions 110 and is assembled in the middle of the lower ends of the two air duct partitions 110. The middle partition 111 divides the air duct air inlet into two; an air duct top plate 112, which is arranged at the top end of the air duct partition 110, and a fan installation opening is arranged in the middle of the air duct top plate 112, and air duct air outlets are arranged at both ends of the air duct top plate 112.

[0056] Specifically, air duct partitions 110 are respectively arranged on the opposite sides inside the cabinet simulation box body 100, and air duct air inlets are arranged at the lower ends of the air duct partitions 110. The fan installation openings arranged in the middle of the air duct top plate 112 are used to install fans, and air duct air outlets are arranged at both ends of the air duct top plate 112. Under the action of the fans, air can flow from the lower part to the upper part through the air ducts on both sides inside the cabinet simulation box body 100; the middle partition 111 is arranged in the middle of the two cabinet air conditioners. The middle partition 111 ensures that the two cabinet air conditioners do not blow against each other during air supply, ensuring that their air supplies do not interfere with each other.

[0057] Optionally, a cable through hole is arranged on the cabinet side panel 101 equipped with the electric control box 130, and a through hole corresponding to the cable through hole is arranged at the lower end of one air duct partition 110.

[0058] Specifically, the cable through hole arranged on the cabinet side panel 101 is located below the electric control box 130, and a through hole is arranged at the corresponding position of the air duct partition 110 to the cable through hole, avoiding chaotic cable layout, facilitating the neat access of the power line and signal line to the electric control box 130, and optimizing the space utilization of the test device.

[0059] As Figure 2 shown in the internal structure of the air duct circulation component, an air duct top plate 112 is arranged below the cabinet top plate 103. Air duct air outlets are respectively arranged on both sides of the air duct top plate 112, and one side of the air duct air outlet is composed of three rectangular holes arranged side by side. A fan installation opening is arranged in the middle of the air duct top plate 112, and the EC supply fan 120 in the working condition simulation component can be installed at the fan installation opening; inside the cabinet simulation box body 100, air duct partitions 110 are respectively arranged on the opposite sides. Air duct air inlets are arranged at the lower ends of the air duct partitions 110, and through holes corresponding to the cable through holes are arranged above the air duct air inlets. The air duct partitions 110 and the cabinet side panel 101 form an air flow duct. A middle partition 111 is arranged between the two oppositely arranged air duct partitions 110. The middle partition 111 is arranged parallel to the two cabinet side panels 101 provided with cabinet air conditioners, and the middle partition 111 is arranged perpendicular to the two air duct partitions 110. In the perspective view looking down from the upper part inside the cabinet simulation box body 100, the top cross-sections of the middle partition 111 and the two air duct partitions 110 form a "work" character shape. Thus, the middle partition 111 divides the interior of the cabinet simulation box body 100 into left and right two chambers, and the air duct air inlets at the lower ends of the air duct partitions 110 are also divided into left and right two. The air duct partitions 110 are distributed on the opposite sides inside the cabinet simulation box body 100, and the middle partition 111 is installed in the middle of the air duct partitions 110 to separate the air supplies of the first cabinet air conditioner 201 and the second cabinet air conditioner 202 to prevent mutual interference. The air supplies of the cabinet air conditioners flow from the lower part to the upper part through the air duct partitions 110 on both sides, and finally converge at the top inside the cabinet simulation box body 100 for mixing.

[0060] Optionally, the working condition simulation component includes: an EC supply fan 120, which is arranged at the fan installation opening in the middle of the air duct top plate 112; a heating component 121, which is arranged on the air duct partition plates 110 on both sides of the EC supply fan 120; a flow equalizing plate 122, which is arranged below the EC supply fan 120; and a temperature sensor 123, which is arranged at the lower end of the flow equalizing plate 122.

[0061] Specifically, the EC supply fan 120 is arranged at the upper end inside the cabinet simulation box 100. The EC supply fan 120 and the heating component 121 work together to flexibly adjust the speed and temperature of the air flow. The flow equalizing plate 122 can ensure the uniform flow of the heated air and ensure that the air flow temperature entering the cabinet air conditioner is uniform. The temperature sensor 123 monitors the return air temperature inside the cabinet simulation box 100 to maintain stable test conditions.

[0062] Optionally, the heating component 121 includes an adjustable heater and a non-adjustable heater.

[0063] Specifically, the heating power of the adjustable heater is adjusted according to specific load conditions, and the non-adjustable heater provides a constant heat output, enabling the test device to cope with more diverse test environments and conditions and improving the flexibility of temperature control.

[0064] As Figure 3 Shown in the internal structure of the test device for the cabinet air conditioner, the working condition simulation component is assembled at the upper end inside the cabinet simulation box 100. Among them, the EC supply fan 120 is installed at the fan installation opening in the middle of the air duct top plate 112. At the position flush with the EC supply fan 120 on the air duct partition plates 110 on both sides of the EC supply fan 120, there is a heating component 121. The heating component 121 includes an adjustable heater and three non-adjustable heaters. Below the EC supply fan 120 and the heating component 121, there is a flow equalizing plate 122. At the lower end of the flow equalizing plate 122, there are two temperature sensors 123. The flow equalizing plate 122 is provided with mesh holes, and the air flow exits from the top downward through the mesh holes to ensure the uniform return air temperature of the first cabinet air conditioner 201 and the second cabinet air conditioner 202.

[0065] As Figure 5a Shown in the schematic diagram of the air flow direction of the test device, when the EC supply fan 120 is initially turned on, the air flow enters the inside of the air duct through the air duct inlet, flows from bottom to top, successively enters the inside of the cabinet simulation box 100 through the air duct outlet and the fan installation opening, and after being heated by the heating component 121, flows through the flow equalizing plate 122.

[0066] Optionally, the electric control components include: an electric control box 130, at the top of which there is an electric control box water baffle 1301, on both sides of the electric control box 130 there are air guiding grooves 1302, on the air guiding grooves 1302 there are exhaust fans 1303, and at the bottom side of the electric control box 130 there is a cable hole; a hand controller 131, which is arranged at the upper end of the front panel of the electric control box 130, and around the hand controller 131 there is a hand controller water baffle 1311.

[0067] Specifically, the electric control box water baffle 1301 and the hand controller water baffle 1311 can effectively prevent rainwater or other liquids from entering the interior of the electric control box 130, which is especially suitable for outdoor use scenarios; the arrangement of the air guiding grooves 1302 and the exhaust fans 1303 guides natural fresh air to enter the electric control box 130 through one side of the air guiding grooves 1302. After taking away the heat generated inside, it is then discharged through the air guiding grooves 1302 on the other side, which can maintain the appropriate working temperature inside the electric control box 130 and prevent equipment failures or performance degradation caused by overheating; there is a cable hole at the bottom side of the electric control box 130, which is convenient for the access and arrangement of power lines and signal lines.

[0068] As Figure 1 and Figure 3 As shown, on the cabinet side panel 101 on the front side of the cabinet simulation box 100, there is an electric control box 130 assembled. At the top of the electric control box 130, there is an electric control box water baffle 1301. On the left and right sides of the electric control box 130, there are air guiding grooves 1302 respectively. On the air guiding grooves 1302, there is an exhaust fan 1303 on the side close to the heat source, that is, there is an exhaust fan 1303 on the air guiding grooves 1302 close to the cabinet air conditioner. Natural fresh air enters the electric control box 130 through the bottom of one side of the air guiding grooves 1302. The hot air inside the electric control box 130 is discharged from the bottom of the air guiding grooves 1302 on the other side through the exhaust fan 1303 to ensure that the electric control box 130 is always at an appropriate working temperature; on the front panel of the electric control box 130, there is a hand controller 131 for convenient operation outside the test device. At the upper end and the left and right sides of the hand controller 131, there are hand controller water baffles 1311. The arrangement of the electric control box water baffle 1301 and the hand controller water baffle 1311 can ensure that no rainwater enters the electric control box 130, meeting the waterproof requirements of the test device. On one side in the middle of the front panel of the electric control box 130, there is a knob, and the knob is arranged close to the air guiding grooves 1302. At the bottom side of the electric control box 130, there is a cable hole. On the cabinet side panel 101 at the position below the electric control box 130 where the electric control box 130 is arranged, there is a cable through hole. The cables of the working condition simulation components enter the interior of the electric control box 130 through the through holes on the air duct partition 110, the cable through holes arranged corresponding to these through holes, and the cable holes at the bottom side of the electric control box 130.

[0069] Optionally, the base component 104 further includes: a mounting bracket 1042 disposed on both sides of the cabinet bottom plate to support the cabinet air conditioner; a support foot cup 1043 disposed at the lower end of the cabinet bottom plate; and a universal wheel 1044 disposed at the lower end of the cabinet bottom plate and outside the support foot cup 1043.

[0070] Specifically, the mounting bracket 1042 provides support for the entire cabinet simulation box 100 and the cabinet air conditioner. The universal wheel 1044 enables the entire test device to be conveniently moved to different positions or sites, greatly improving the flexibility and convenience of use of the test device; the support foot cup 1043 maintains horizontal and stable when the test device needs to be fixed in position.

[0071] As Figures 1 - 4 shown, the mounting brackets 1042 located on both sides of the cabinet bottom plate 1041 are respectively in an inverted U-shaped support structure. The inverted U-shaped support structure supports the bottom end of the cabinet air conditioner. A crossbeam structure is provided in the middle of the inverted U-shaped support structure and is installed at the side end of the cabinet bottom plate 1041 through the crossbeam structure. At the middle position between the two mounting brackets 1042, that is, at the lower end of the cabinet bottom plate 1041, four support foot cups 1043 are provided; four universal wheels 1044 are provided outside the four support foot cups 1043, and the test device of the cabinet air conditioner can be freely moved. The universal wheels 1044 can also be disposed at the lower end of the cabinet bottom plate 1041 or the lower end of the corner column 102 of the cabinet simulation box 100. When the test device of the cabinet air conditioner needs to be fixed, the four support foot cups 1043 extend to play a role in stabilizing and leveling, and at the same time protect the universal wheels 1044 from being damaged due to long-term stress; the mounting brackets 1042 on both sides are fastened to the cabinet bottom plate 1041 to increase the stability of the test device of the cabinet air conditioner, and at the same time play a role in supporting the first cabinet air conditioner 201 and the second cabinet air conditioner 202.

[0072] As Figures 5a - 5b shown, under the operation of the EC blower 120, the air inside the cavity of the test device circulates. The low-temperature air of the first cabinet air conditioner 201 and the second cabinet air conditioner 202 enters the long strip-shaped air ducts on both sides from the air duct inlets at the lower part of the two air duct partitions 110, flows upward to the periphery of the cavity of the EC blower 120, and under the forced convection of the EC blower 120, the low-temperature air is heated by the heating component 121 and becomes high-temperature air, and then flows to the cabinet air outlet through the flow equalizing plate 122, and enters the interiors of the first cabinet air conditioner 201 and the second cabinet air conditioner 202 respectively through the air conditioner return air inlets. After the high-temperature air is cooled by the first cabinet air conditioner 201 and the second cabinet air conditioner 202, it is then sent to the cavities on both sides of the middle partition 111, and finally enters the two air duct partitions 110 again, thus forming a cycle.

[0073] The present application provides a test device for a cabinet air conditioner, and its specific implementation steps are as follows:

[0074] S101: Prepare the cabinet for installing the test device. The test device includes a cabinet simulation box 100, an air duct partition 110, a middle partition 111, an air duct top plate 112, an EC supply fan 120 (which can also be called a variable-speed fan or a variable-speed EC fan here), a heating component 121 (a variable heater and a non-variable heater, where the heater can also be called an electric heater), a flow equalizing plate 122, a temperature sensor 123, an electric control box 130, a hand controller 131, a mounting bracket 1042, a support foot cup 1043, and a universal wheel 1044. The size and structure of the cabinet simulation box 100 are the same as those of the actual communication base station or power distribution cabinet in use. On both sides of the cabinet simulation box 100 are used for installing cabinet air conditioners.

[0075] S102: Install the cabinet air conditioners on both sides of the cabinet simulation box 100. Install two cabinet air conditioners on both sides of the cabinet simulation box respectively, ensuring that the air return opening and the air supply opening of the cabinet air conditioner are connected to the internal space of the cabinet simulation box.

[0076] S103: Connect the power supply and control lines. Connect the power supply lines and control lines on the cabinet simulation box 100 and the cabinet air conditioners to the electric control box 130 respectively. The electric control box 130 controls the start, stop, and operation mode of the cabinet simulation box 100 and the cabinet air conditioners through the control lines.

[0077] S104: Set the test conditions. By controlling the rotation speed of the variable-speed EC supply fan 120 and the power of the variable heater, different load test conditions are simulated.

[0078] S105: Start the test. Start the cabinet air conditioner to work through the electric control box 130, and at the same time control the variable-speed EC supply fan 120 and the variable heater to work, and start the test. During the test process, the operation status and environmental parameters of the cabinet air conditioner are monitored in real time, and the test conditions are adjusted as needed.

[0079] S106: Record and analyze the data. After the test is completed, record the test data, including the operation parameters, environmental parameters, energy consumption, etc. of the cabinet air conditioner, and conduct analysis to evaluate the performance and reliability of the cabinet air conditioner. The test device for the cabinet air conditioner provided in the embodiment of the present application, by simulating the real application environment, flexibly adjusting the test conditions, testing two cabinet air conditioners at the same time, and recording and analyzing the test data, can more objectively evaluate the performance and reliability of the cabinet air conditioner.

[0080] It should be noted that in the linkage control mode of the master and slave units, either the first cabinet air conditioner 201 or the second cabinet air conditioner 202 can be the master or the slave. For example, if the first cabinet air conditioner 201 is designated as the master, which is responsible for the main control decisions, the first cabinet air conditioner 201 can determine when to turn on or off the refrigeration function according to factors such as ambient temperature and humidity. As the master, the first cabinet air conditioner 201 is also responsible for sending instructions to the second cabinet air conditioner 202 serving as the slave to ensure the coordinated operation of the entire air conditioning system; if the second cabinet air conditioner 202 is designated as the slave, the second cabinet air conditioner 202 adjusts its own operating state according to the target parameters (such as target temperature, operating mode, etc.) set by the first cabinet air conditioner 201 to support the first cabinet air conditioner 201 to complete the overall temperature control task.

[0081] The test device for the cabinet air conditioner simulates the temperature inside the control cabinet of the cabinet simulation box 100 and simulates different load test conditions. Its control logic is as follows:

[0082] When the temperature inside the cabinet of the cabinet simulation box 100 is less than the set value of the temperature inside the cabinet for control, the EC supply fan 120 runs at full speed, and the heating component 121 first operates the non-adjustable heater according to the temperature inside the cabinet. If the heating amount of the non-adjustable heater still does not meet the test load requirements, at this time, the power of the adjustable heater is increased proportionally until the temperature inside the cabinet is equal to the set value of the temperature inside the cabinet for control, and the heating component 121 operates at the current power to achieve a continuous and stable test condition;

[0083] When the temperature inside the cabinet of the cabinet simulation box 100 is greater than the set value of the temperature inside the cabinet for control, the EC supply fan 120 runs at full speed, and the heating component 121 first reduces the power of the adjustable heater according to the temperature inside the cabinet. If the heating amount of the adjustable heater still does not meet the test load requirements, at this time, by closing the number of non-adjustable heaters, the temperature inside the cabinet is equal to the set value of the temperature inside the cabinet for control, and the heating component 121 operates with the current number of non-adjustable heaters to achieve a continuous and stable test condition;

[0084] When the temperature inside the cabinet of the cabinet simulation box 100 is greater than the set value of the high-temperature warning inside the cabinet, the test device will automatically cut off the power input of the heating component 121, and the EC supply fan 120 runs at full speed to quickly cool down the temperature inside the cabinet of the cabinet simulation box 100 of the test device to prevent safety accidents.

[0085] Compared with the existing testing methods for cabinet air conditioners, the present application solves the problem that the existing technology cannot truly reproduce the actual application environment of cabinet air conditioners. For example, existing testing devices can usually only be used in a laboratory environment and cannot truly reproduce the working environment of cabinet air conditioners in actual applications, such as outdoor high temperature, low temperature, humid, etc. environments. Moreover, existing cabinet air conditioners are small in size, with relatively small cooling and heating capacities. If tested in an enthalpy difference laboratory or a thermal balance laboratory, it is a waste of resources, resulting in a reduction in the accuracy of test results. However, the present application can more realistically restore the application scenario. For example, the testing device for cabinet air conditioners provided in the present application can simulate the structural forms of outdoor cabinets such as communication base stations and power distribution, achieving a more objective restoration of the application scenario of cabinet air conditioners. At the same time, by realizing an annual periodic operation test environment, its test conditions and results are more in line with reality. Compared with the defect of the existing technology that it can only be used in a laboratory environment and cannot truly reproduce the working environment of cabinet air conditioners in actual applications, the present application is closer to actual applications and can provide more reliable test results.

[0086] The existing testing devices have a relatively single way of adjusting working conditions and cannot flexibly simulate different loads and environmental conditions, which limits the test efficiency and accuracy. However, the testing device for cabinet air conditioners proposed in the present application has higher test efficiency and flexibility: The testing device for cabinet air conditioners in the present application adopts a variable-speed EC supply fan and an adjustable heater, which can simulate different loads, and the adjustment of test conditions is more flexible, improving the test efficiency and saving test resources; Installing the EC supply fan and heating components at the top inside the testing device can ensure the uniformity of the return air temperature of the cabinet air conditioner to be tested, and the airflow direction inside the cabinet simulation box of the cabinet is consistent with the airflow of the cabinet air conditioner, reducing the influence of airflow on the cabinet air conditioner in a limited space. Compared with the existing technology with a relatively single way of adjusting working conditions and unable to flexibly simulate different loads and environmental conditions, the present application provides a more flexible test method, improving the test efficiency and accuracy.

[0087] Existing testing devices can usually only test one cabinet air conditioner, cannot test multiple cabinet air conditioners simultaneously, and cannot truly simulate the linkage control mode of master and slave units, which is a great limitation for verifying the linkage control logic of cabinet air conditioners. However, the testing device for cabinet air conditioners proposed in the present application has comprehensive testing capabilities: The testing device for cabinet air conditioners in the present application can test two cabinet air conditioners simultaneously, facilitating comparative testing, and can truly simulate the linkage control mode of master and slave units for verifying the linkage control logic of cabinet air conditioners. Compared with the existing technology that can only test one cabinet air conditioner, cannot test multiple cabinet air conditioners simultaneously, and cannot truly simulate the linkage control mode of master and slave units, the present application provides more comprehensive testing capabilities, which helps to verify the performance and reliability of cabinet air conditioners.

[0088] Existing test devices usually do not have waterproof functions and cannot meet the requirements for long-term outdoor use. At the same time, the input power system of the electric control box may also be incompatible with the cabinet air conditioners of different power systems. However, the test device for the cabinet air conditioner proposed in this application has wide adaptability and compatibility. The test device for the cabinet air conditioner in this application adopts a waterproof structural design, which can meet the requirements for long-term outdoor use. At the same time, the electric control box is configured with inputs of different power systems to meet the test requirements of cabinet air conditioners with different power systems. Compared with the prior art that does not have waterproof functions, cannot meet the requirements for long-term outdoor use, and the input power system of the electric control box may also be incompatible with the cabinet air conditioners of different power systems, this application has wide adaptability and compatibility, improving the convenience and reliability of testing.

[0089] Existing test devices usually do not have the ability to move freely, and the switching of test scenarios is not convenient. However, the test device for the cabinet air conditioner proposed in this application has convenient mobility. The test device for the cabinet air conditioner in this application is configured with universal wheels, which can achieve free movement and make the switching of test scenarios more convenient. Compared with the prior art, this application provides higher mobility, making the test more flexible and convenient.

[0090] In addition, the test device for the cabinet air conditioner in this application has passed assembly and operation verification, with convenient assembly and maintenance operations, good regulation of the EC air blower and heating components, and normal operation of all functions, meeting the requirements of the test device for the cabinet air conditioner.

[0091] In summary, for the test device of the cabinet air conditioner provided in this application, cabinet air conditioners are assembled on the outer sides of the cabinet side panels 101 on the opposite sides of the cabinet simulation box body 100. The air supply outlets at the lower ends of the cabinet air conditioners correspond to the cabinet air inlets at the lower ends of the cabinet side panels 101, and the air return outlets at the upper ends of the cabinet air conditioners correspond to the cabinet air outlets at the upper ends of the cabinet side panels 101. This test device can test two cabinet air conditioners simultaneously for comparative testing, and can also truly simulate the linkage control mode of the master-slave machines. In the middle of the inner sides of the cabinet side panels 101 on a pair of opposite sides, middle partitions 111 are provided to prevent the two relatively arranged cabinet air conditioners from interfering with each other when sending air into the cabinet simulation box body 100. Air duct partitions 110 are respectively provided on the inner sides of the cabinet side panels 101 on the other pair of opposite sides of the cabinet simulation box body 100. The air duct partitions 110 and the cabinet side panels 101 on the other pair of opposite sides together form the air ducts on both sides of the cabinet simulation box body 100. An air duct top plate 112 is provided at the upper end inside the cabinet simulation box body 100. An EC air blower 120 is provided in the middle of the air duct top plate 112. Heating components 121 are provided at the positions of the cabinet side panels around the EC air blower 120. A flow equalizing plate 122 is provided below the EC air blower 120, and a temperature sensor 123 is provided at the lower end of the flow equalizing plate 122. The setting at the upper end inside the cabinet simulation box body 100 can flexibly simulate different loads and environmental conditions, improving the test efficiency and saving test resources. The universal wheels 1044 provided at the lower end of the cabinet simulation box body 100 can achieve the free movement of this test device, and the switching of test scenarios is more convenient. The support feet 1043 provided at the lower end of the cabinet simulation box body make this test device more stable when placed statically. This test device adopts a waterproof structural design, which can meet the requirements of its long-term use outdoors. At the same time, the electric control box 130 is configured with inputs of different electrical systems to meet the test use of cabinet air conditioners with different electrical systems, enabling this test device to adapt to various power supply voltages and frequencies, and improving the versatility and flexibility of this test device.

[0092] Unless otherwise defined, all technical and scientific terms used throughout this application have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. In case of inconsistency, the meaning stated in the full text of this application or the meaning derived from the content recorded in the full text of this application shall prevail. Additionally, the terms used in this specification are only for the purpose of describing the embodiments of this application and are not intended to limit this application.

[0093] Note that the above is only the preferred embodiment of the present application and the technical principles applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein. Various obvious changes, re-adjustments, and substitutions can be made by those skilled in the art without departing from the protection scope of the present application. Therefore, although the present application has been described in detail through the above embodiments, the present application is not limited to the above embodiments. Without departing from the technical concept of the present application, more other equivalent embodiments can be included, all of which fall within the protection scope of the present application.

[0094] The above description is only the embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structural transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present application.

Claims

1. A test device for a cabinet air conditioner, characterized in that, Comprising: A main test unit, which includes a cabinet simulation box body, air duct circulation components arranged on two opposite sides of the cabinet simulation box body, electric control components arranged outside the cabinet simulation box body, and working condition simulation components arranged inside the cabinet simulation box body; On the other two opposite sides of the cabinet simulation box body in the main test unit, a unit under test is arranged, and a cabinet air conditioner is installed on the unit under test.

2. The test device for the cabinet air conditioner according to claim 1, wherein The cabinet simulation box body includes: Cabinet side panels, which include multiple ones, and the cabinet side panels enclose a three-dimensional box body and are arranged in the middle of the base component; Corner columns, which include multiple ones, and the corner columns are respectively located between two adjacent cabinet side panels to connect the cabinet side panels; Cabinet top plate, which is arranged at the top end of the cabinet side panels; The base component, which includes a cabinet bottom plate arranged at the bottom end of the cabinet side panels, and both ends of the cabinet bottom plate support the two cabinet air conditioners respectively.

3. The test device for the cabinet air conditioner according to claim 2, characterized in that, The air duct circulation components include: Air duct partitions, which are arranged on two opposite side edges inside the cabinet simulation box body, and an air duct air inlet is arranged at the lower end of the air duct partitions; Middle partition, which is perpendicular to the two air duct partitions and is assembled in the middle of the lower ends of the two air duct partitions, and the middle partition divides the air duct air inlet into two; Air duct top plate, which is arranged at the top end of the air duct partitions, and a fan installation opening is arranged in the middle of the air duct top plate, and air duct air outlets are arranged at both ends of the air duct top plate.

4. The test device for the cabinet air conditioner according to claim 3, wherein The working condition simulation components include: An EC supply fan, which is arranged at the fan installation opening in the middle of the air duct top plate; Heating components, which are arranged on the air duct partitions on both sides of the EC supply fan; Flow equalizing plate, which is arranged below the EC supply fan; Temperature sensor, which is arranged at the lower end of the flow equalizing plate.

5. The test device for the cabinet air conditioner according to claim 4, wherein The electric control components include: Electric control box, with an electric control box water baffle arranged at the top end, air guide grooves arranged on both sides of the electric control box, exhaust fans arranged on the air guide grooves, and cable holes arranged at the bottom side of the electric control box; Hand operator, which is arranged at the upper end of the front panel of the electric control box, and a hand operator water baffle is arranged around the hand operator.

6. The test device for the cabinet air conditioner according to claim 4, characterized in that, The base component further includes: Installation brackets, which are arranged on both sides of the cabinet bottom plate to support the cabinet air conditioner; Supporting foot cups, which are arranged at the lower end of the cabinet bottom plate; Universal wheels, which are arranged at the lower end of the cabinet bottom plate and are arranged on the outer periphery of the supporting foot cups.

7. The test device for the cabinet air conditioner according to claim 2, characterized in that, The unit under test includes a mounting plate, and the mounting plate is assembled on the outer sides of two relatively arranged cabinet side panels, and the cabinet air conditioner is assembled on the mounting plate.

8. The test device for the cabinet air conditioner according to claim 5, characterized in that, A cable through hole is arranged on the cabinet side panel equipped with the electric control box, and a through hole corresponding to the cable through hole is arranged at the lower end of one air duct partition.

9. The test device for the cabinet air conditioner according to claim 7, characterized in that, Cabinet air outlets and cabinet air inlets corresponding to the air conditioner return air outlet and air conditioner supply air outlet of the cabinet air conditioner are arranged on two relatively arranged cabinet side panels.

10. The test device for the cabinet air conditioner according to claim 4, characterized in that, The heating components include adjustable heaters and non-adjustable heaters.

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