Water-cooled aging oven

Abstract

The utility model discloses a water -cooling ageing furnace, including the device body inside one side is provided with the power distribution area, the device body inside other side is provided with PG overhaul passageway, and PG overhaul passageway both sides symmetry are provided with the ageing area, and the utility model discloses a water -cooling ageing furnace, including the device body inside one side is provided with the power distribution area, the device body inside other side is provided with PG overhaul passageway, and PG overhaul passageway both sides symmetry are provided with the ageing area, and the utility model discloses a water -cooling ageing furnace, including the device body inside one side is provided with the power distribution area, the device body inside other side is provided with PG overhaul passageway, and PG overhaul passageway both sides symmetry are provided with the ageing area, and the utility model discloses a water -cooling ageing furnace, including the device body inside one side is provided with the power distribution area, the device body inside other side is provided with PG overhaul passageway, and PG overhaul passageway both sides symmetry are provided with the ageing area, and the utility model discloses a water -cooling ageing furnace, including the device body inside one side is provided with the power distribution area, the device body inside other side is provided with PG overhaul passageway, and PG overhaul passageway both sides symmetry are provided with the ageing area, and the utility model discloses a water -cooling ageing furnace, including the device body inside one side

Description

Technical Field

[0001] This utility model relates to the field of display panel aging test technology, and more specifically, to a water-cooled aging furnace. Background Technology

[0002] As a core carrier of information interaction, display technology has been deeply integrated into all aspects of human life, becoming an indispensable component. In recent years, display panel technology has continued to iterate and upgrade, from traditional LCD (Liquid Crystal Display) and OLED (Organic Light Emitting Diode) to emerging MicroLED (Micron Light Emitting Diode), constantly pursuing breakthroughs in higher brightness, higher contrast, lower power consumption, longer lifespan, and smaller size.

[0003] Among them, MicroLED technology is considered the core development direction of next-generation display technology due to its significant advantages such as self-emission, high brightness (up to several thousand nits), ultra-high contrast, wide color gamut, ultra-fast response speed, low power consumption, long lifespan (no organic material aging issues), and the ability to achieve truly seamless splicing. The core of MicroLED lies in drastically reducing the size of traditional LED devices to the micrometer level (typically <100μm) and achieving high-density, mass transfer and integration. This makes it show great potential in fields such as micro-displays (such as AR / VR glasses, smartwatches, head-mounted displays), ultra-large-size displays (such as commercial video walls), and special display applications (such as transparent displays, flexible displays).

[0004] With the gradual maturation of MicroLED manufacturing processes (such as mass transfer, bonding, testing, and repair) and continuous cost optimization, MicroLED-based display products are rapidly moving from the laboratory to industrialization, with broad market application prospects. However, the industrialization process of MicroLED devices faces many challenges, one of which is reliability and lifespan verification.

[0005] Burn-in testing is a crucial step in the semiconductor and display device manufacturing process. Its core purpose is to simulate the prolonged operation of devices under rated or exceeding rated conditions before shipment, accelerating the exposure of potential early failures (such as material defects, process defects, poor connections, etc.), thereby screening out defective products and ensuring the reliability and long-term stability of the final product. For high-value, high-density MicroLED display panels with extremely stringent reliability requirements, efficient, accurate, and controllable burn-in testing is a key step in ensuring product quality and market reputation.

[0006] Therefore, with the rapid development of MicroLED display technology and the increase in market penetration, the demand for specialized equipment capable of efficiently and accurately completing aging tests on large batches of MicroLED display panels (especially microdisplays) is becoming increasingly urgent. Existing aging test technologies and equipment need to be continuously evolved to adapt to the new characteristics of MicroLED devices (such as microscale, high power density, and thermal sensitivity) and the needs of industrial-scale production.

[0007] The shortcomings of existing technologies include a severe lack of precise temperature control capability under batch parallel aging. Poor temperature uniformity: Existing aging equipment, which mainly relies on air cooling or natural convection, has heat dissipation efficiency greatly affected by factors such as airflow distribution, internal equipment structure, and product density. When aging large batches (tens to hundreds of panels) of MicroLED panels simultaneously, it is impossible to guarantee temperature uniformity across different aging stations, or even different areas within the same station. Products located in the center, edges, near air outlets, or stacked on different layers may exhibit significant differences in actual operating temperature (up to 10°C or even higher), far exceeding the strict temperature control range (e.g., ±2°C) typically required for MicroLED aging processes. This leads to: Some products may deteriorate more rapidly or even be permanently damaged due to localized overheating (hot spot), reducing yield.

[0008] Inconsistent testing conditions lead to poor comparability and reduced reliability of aging results, making it impossible to accurately screen out early failure products.

[0009] To avoid the risk of overheating, the aging power is forced to be reduced or the aging time shortened, which affects the effectiveness and coverage of the test.

[0010] Slow dynamic response and poor stability: Air has a low heat capacity and slow thermal conductivity, causing air-cooled systems to lag in responding to rapid changes in product heat generation (such as power consumption fluctuations under different test patterns) or environmental disturbances. This makes it difficult to precisely stabilize the temperature of each product at the set value in real time and dynamically, resulting in temperature fluctuations exceeding the allowable range. Utility Model Content

[0011] To solve at least one of the above-mentioned technical problems, this utility model proposes a water-cooled aging furnace.

[0012] The first aspect of this utility model provides a water-cooled aging furnace, comprising: a device body; A power distribution area is provided on one side of the device body, and a PG maintenance channel is provided on the other side of the device body. Aging areas are symmetrically arranged on both sides of the PG maintenance channel. At least one exhaust fan is installed at the top of the PG maintenance passage; The aging zone is equipped with a fixing plate, and a heat insulation plate is installed on the side of the fixing plate near the PG maintenance passage. Several water-cooled fans are arranged in an array on one side of the heat insulation plate. On the other side of the fixed plate, a number of test fixture components are arranged in an array, and each test fixture component corresponds to a water-cooled fan.

[0013] In a preferred embodiment of this utility model, a display and a keyboard and mouse box (a box for holding a keyboard and mouse) are provided on one side of the device body and in the power distribution area, and the keyboard and mouse box is located below the display.

[0014] In a preferred embodiment of the present invention, the test fixture assembly includes a base plate fixedly installed on one side of a fixed plate, a slide rail is provided on the top of the base plate, a slidable interface plate is connected to the top of the slide rail, and a handle is provided on one side of the interface plate.

[0015] In a preferred embodiment of this utility model, a water cooling head is connected to the top of the base plate, a vacuum fixture is provided on the top of the water cooling head, a plurality of positioning pins are provided on the top of the vacuum fixture, PG buckles are symmetrically provided on both sides of the top of the vacuum fixture, and a thermocouple is provided on one side of the vacuum fixture.

[0016] In a preferred embodiment of this utility model, a heat-conducting plate fixture is provided at the top center of the vacuum fixture, and an adapter plate is connected to the top of the heat-conducting plate fixture. The product is provided at the center of the adapter plate, and the positioning pin cooperates with the PG buckle to fix the adapter plate on the top of the vacuum fixture.

[0017] In a preferred embodiment of this utility model, a vacuum gauge, a PG start button, and a vacuum start button are fixedly installed on one end of the base plate, and the PG start button and the vacuum start button are located on both sides of the vacuum gauge.

[0018] In a preferred embodiment of this utility model, there are two aging zones, which are symmetrically arranged on both sides of the PG maintenance channel, and an FFU unit is provided on the top of each aging zone.

[0019] In a preferred embodiment of this utility model, two cabinet doors are symmetrically arranged on one side of the device body.

[0020] In a preferred embodiment of the present invention, the bottom of the device body is provided with multiple support legs and rollers.

[0021] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art: By integrating station-level independent liquid cooling, modular replaceable fixtures, and optimized thermal management layout and maintenance channel design, we can achieve efficient, accurate, reliable, and flexible mass parallel aging tests on various types and sizes of MicroLED microdisplays, while ensuring the maintainability and environmental friendliness of the testing process. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, some of the drawings in the following description are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a three-dimensional structural diagram of the water-cooled aging furnace according to an embodiment of this utility model; Figure 2 This is a front view of the aging zone of the water-cooled aging furnace according to an embodiment of this utility model; Figure 3 This is a top view of the water-cooled aging furnace according to an embodiment of this utility model; Figure 4 This is a three-dimensional structural diagram of the test fixture assembly according to an embodiment of this utility model; Figure 5 This is a schematic diagram of the installation of the heat-conducting plate fixture according to an embodiment of this utility model; Figure 6 This is a schematic diagram of the installation of the water-cooled fan according to an embodiment of this utility model.

[0024] In the diagram, 1. Tricolor LED, 2. Power distribution area, 3. Device body, 4. Monitor, 5. Keyboard and mouse box, 6. Support legs, 7. Scroll wheel, 8. Cabinet door, 9. Aging area, 10. PG maintenance channel, 11. FFU unit, 12. Exhaust fan, 13. Fixing plate. 14. Test fixture components, 1401. Interface board, 1402. Base plate, 1403. Slide rail, 1404. Water cooling head, 1405. Vacuum start button, 1406. Negative pressure gauge, 1407. Handle, 1408. PG start button, 1409. Thermocouple, 14010. Product, 14011. Adapter board, 14012. PCB clip, 14013. Heat conduction plate fixture, 14014. Vacuum fixture, 14015. Positioning pin; 15. Heat insulation board; 16. Water-cooled fan. Detailed Implementation

[0025] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0027] Example 1 See Figures 1-6 As shown, this utility model proposes a water-cooled aging furnace, including: device body 3; A power distribution area 2 is provided on one side inside the device body 3. A three-color light 1 is provided on the top of the power distribution area 2. A PG maintenance channel 10 is provided on the other side inside the device body 3. An aging area 9 is symmetrically arranged on both sides of the PG maintenance channel 10. At least one exhaust fan 12 is installed at the top of the PG maintenance passage 10; A fixing plate 13 is installed inside the aging zone 9. A heat insulation plate 15 is installed on the side of the fixing plate 13 near the PG maintenance passage 10. Several water-cooled fans 16 are arranged in an array on one side of the heat insulation plate 15. On the other side of the fixed plate 13, several test fixture components 14 are arranged in an array, and each test fixture component 14 corresponds to a water-cooled fan 16.

[0028] According to an embodiment of the present invention, a display 4 and a keyboard and mouse box 5 are provided on one side of the device body 3 and located in the power distribution area 2, with the keyboard and mouse box 5 located below the display 4.

[0029] According to an embodiment of the present invention, the test fixture assembly 14 includes a base plate 1402 fixedly installed on one side of the fixed plate 13, a slide rail 1403 is provided on the top of the base plate 1402, a slidable interface plate 1401 is connected to the top of the slide rail 1403, and a handle 1407 is provided on one side of the interface plate 1401.

[0030] According to an embodiment of the present invention, a water cooling head 1404 is connected to the top of the base plate 1402, a vacuum fixture 14014 is provided on the top of the water cooling head 1404, a plurality of positioning pins 14015 are provided on the top of the vacuum fixture 14014, PG buckles are symmetrically provided on both sides of the top of the vacuum fixture 14014, and a thermocouple 1409 is provided on one side of the vacuum fixture 14014.

[0031] It should be noted that thermocouples have the following functions: Temperature measurement: It can measure a wide range of temperatures from extremely low to extremely high temperatures, depending on the combination of metallic materials that make up the thermocouple.

[0032] Temperature signal conversion: It converts the physical quantity of "temperature" that cannot be directly processed into an "electrical signal" (millivolt level voltage) that can be easily amplified, transmitted, displayed and controlled.

[0033] Temperature monitoring and control: The converted electrical signal can be input to a temperature controller, PLC (Programmable Logic Controller), or computer. The system determines the magnitude of this signal and issues commands to control heating or cooling equipment, thereby achieving automatic temperature regulation and stabilization. This is a crucial part of industrial automation.

[0034] According to an embodiment of the present invention, a heat-conducting plate fixture 14013 is provided at the top center of the vacuum fixture 14014, and an adapter plate 14011 is connected to the top of the heat-conducting plate fixture 14013. A product 14010 is provided at the center of the adapter plate 14011, and a positioning pin 14015 cooperates with a PG snap fastener to fix the adapter plate 14011 on the top of the vacuum fixture 14014.

[0035] According to an embodiment of the present invention, a vacuum gauge and a PG start button 1408 and a vacuum start button 1405 are fixedly installed on one end of the base plate 1402, and the PG start button 1408 and the vacuum start button 1405 are arranged on both sides of the vacuum gauge.

[0036] According to the embodiment of this utility model, there are two aging zones 9, which are symmetrically arranged on both sides of the PG maintenance channel 10, and an FFU unit 11 is provided on the top of each aging zone 9.

[0037] According to an embodiment of the present invention, two cabinet doors 8 are symmetrically arranged on one side of the device body.

[0038] According to an embodiment of the present invention, the bottom of the device body 3 is provided with a plurality of support legs 6 and rollers 7.

[0039] The working principle of this application is as follows: This application is mainly used to conduct aging tests on various types / sizes of micro displays to ensure that the micro displays maintain a constant temperature during the aging process. Applicable product 14010: MicroLED; This equipment consists of a product 14010 aging zone 9, a PG maintenance channel, and a power distribution zone 2. The heat from the product 14010 zone is dissipated to the PG maintenance channel by a water-cooled fan 16. Two exhaust fans 12 are installed on the maintenance channel to exhaust the heat from the PG maintenance channel into the plant exhaust pipe.

[0040] When the equipment is working, product 14010 needs to be placed on adapter plate 14011. The connectors on adapter plate 14011 and product 14010 are then connected via mating. Adapter plate 14011 is manually placed on the test fixture, and positioned using positioning pin 14015 on the fixture. The PCB clamp 14012 is then manually rotated to secure the electronic board. Finally, handle 1407 connects the connectors on interface board 1401 and adapter plate 14011. Vacuum start button 1405 activates the vacuum suction, adsorbing product 14010 onto the fixture. Pressing the PG start button 1408 begins the aging test on product 14010. Personnel can monitor whether product 14010 is adsorbed onto the fixture using the value displayed on negative pressure gauge 1406. Simultaneously, personnel can view the real-time temperature of product 14010 during aging, measured by thermocouple 1409, on display 4.

[0041] During operation, product 14010 is sucked into the vacuum suction holes on the heat-conducting plate fixture 14013. The heat generated when product 14010 ages is quickly transferred to the water pump on the water cooling head 1404 through the vacuum fixture 14014 and the heat-conducting plate fixture 14013. The water pipes on the water cooling head 1404 are connected to the water duct on the water cooling fan 16. The water pump on the water cooling head 1404 circulates the cooling water between the water cooling head 1404 and the water duct on the water cooling fan 16. The water cooling head 1404 is attached to the vacuum fixture 14014, transferring the heat from the vacuum fixture 14014 and the heat-conducting plate fixture 14013 to the cooling water. The cooling water, carrying the heat, flows to the water cooling fan 16, where the fan blows the heat from the cooling water into the PG maintenance channel. Meanwhile, the water-cooled fan 16 is fixed to the mounting plate 13, and a heat insulation plate 15 is installed on the mounting plate 13 to separate the aging zone 9 of product 14010 from the PG maintenance channel, preventing the temperature of the aging zone 9 of product 14010 from becoming too high. For different products 14010, we only need to replace the corresponding heat-conducting plate fixture 14013 and adapter plate 14011 to achieve compatibility with multiple products 14010. During operation, the data of each station can be viewed and operated independently, and when an abnormality occurs at one station, it will not affect the normal operation of other stations.

[0042] This application has the following advantages: each old chemical station is equipped with an independent water cooling head 1404, heat conduction plate fixture 14013, vacuum fixture 14014 and thermocouple 1409 temperature sensor, combined with a circulating cooling water system (water pump, water pipe, water cooling fan 16).

[0043] Ultra-high temperature uniformity and stability: The water-cooling system has a much higher heat capacity and thermal conductivity than air-cooling. Combined with a thermally conductive fixture that is in close contact with the surface of the MicroLED 14010 (ensuring good thermal contact through vacuum adsorption), it can efficiently and quickly conduct the high-density heat generated by the MicroLED device to the cooling water and remove it. With real-time temperature monitoring (thermocouple 1409), it can ensure that the operating temperature of each MicroLED 14010 at each station is precisely and stably controlled near the set value throughout the aging process (e.g., the fluctuation range can be controlled within ±0.5°C to ±1.0°C), which is far superior to the ±5°C or greater fluctuation of existing air-cooling solutions.

[0044] Effective suppression of photothermal coupling effects: Direct contact heat conduction and water cooling paths greatly reduce reliance on convective heat dissipation, significantly weakening the impact of the 14010 product's light emission on the ambient temperature field.

[0045] Eliminating the risk of overheating damage: It fundamentally avoids the risk of performance degradation or permanent damage to MicroLED devices due to localized temperature runaway (“Hot Spot”), protecting the high-value product 14010 and improving test yield and product 14010 factory reliability.

[0046] To ensure test consistency and accuracy: All products are aged under strictly consistent temperature control conditions, making test results more comparable and enabling more accurate screening of early failure products, thus improving the effectiveness and reliability of aging tests.

[0047] Overcoming the multi-product 14010 compatibility bottleneck, achieving efficient and flexible mixed-batch aging, and greatly improving equipment utilization and testing efficiency: It adopts a modular heat-conducting plate fixture 14013 and adapter plate 14011 design, supplemented by a precise positioning mechanism (such as positioning pin 14015) and a convenient locking / unlocking mechanism (such as PCB snap fastener 14012 and handle 1407).

[0048] Efficient physical interface and heat dissipation are well-coordinated: For MicroLED products 14010 with different sizes, shapes, and interfaces, only the corresponding heat-conducting plate fixture 14013 (ensuring good thermal contact and physical fixation) and adapter plate 14011 (ensuring electrical connection) need to be designed and replaced. This modular design solves the key problems of physical fixation, electrical connection, and efficient heat dissipation simultaneously. The replacement process is simple and fast (e.g., switching within minutes), and the cost is significantly lower than replacing the entire carrier or aging board.

[0049] Supports true "mixed batch" aging: Thanks to independent temperature control at the workstation level and modular design, the same equipment can simultaneously process multiple MicroLED 14010 products with different physical sizes (e.g., 0.5 inches and 1.0 inches), different interface types (e.g., MIPI and LVDS), and even differences in thermal power during the same batch aging process. This greatly improves equipment utilization and the flexibility of testing arrangements, making it particularly suitable for R&D and production scenarios with a wide variety of 14010 products, small batches, and rapid iteration.

[0050] Reduced equipment investment and operating costs: The number of dedicated aging devices required for different products 14010 has been reduced, saving on equipment purchase costs, site occupancy and maintenance costs.

[0051] Optimize system thermal management and maintainability to improve equipment reliability and environmental friendliness: The unique three-zone layout (product 14010 aging zone 9, PG maintenance channel, and power distribution zone 2) features heat insulation board 15 for physical isolation, water-cooled fan 16 to direct waste heat into the PG maintenance channel, and exhaust fan 12 at the top of the maintenance channel to force heat out to the plant pipeline.

[0052] Efficient directional heat dissipation prevents internal heat buildup: The heat carried by the cooling water during circulation is concentrated by the water-cooled fan 16 and blown / discharged into a dedicated PG maintenance channel. Then, a high-power exhaust fan 12 quickly and forcefully removes the heat from the equipment and connects it to the plant's exhaust system. This design avoids heat accumulation inside the equipment or in aging areas, effectively protecting internal electronic components (such as PG boards and power supplies), extending equipment lifespan, and improving operational stability.

[0053] Significantly reduces local environmental heat load: Waste heat is effectively collected and directly discharged from the factory, minimizing the rise in ambient temperature in the aging workshop, reducing the additional cooling burden on the air conditioning system, and achieving energy conservation and environmental protection.

[0054] Ensuring convenient and safe equipment maintenance: The dedicated PG maintenance access channel provides maintenance personnel with a safe and spacious operating area, allowing for easy access to perform PG board replacement, circuit repair, fan maintenance, and other operations, significantly improving equipment maintainability (reduced MTTR) and online uptime (increased MTBF). The heat insulation panel 15 effectively isolates the high-temperature product aging zone 9 from the maintenance / power distribution zone 2, improving the safety of the working environment for maintenance personnel.

[0055] Enhanced system reliability: The zoned design and forced heat dissipation reduce the overall temperature rise inside the equipment, which is conducive to the operation of power distribution zone 2 (power supply and control system) in a cooler environment, thus improving the electrical safety and long-term reliability of the entire system.

[0056] In summary, by integrating station-level independent liquid cooling, modular replaceable fixtures, and optimized thermal management layout and maintenance channel design, we can achieve efficient, accurate, reliable, and flexible large-scale parallel aging tests on various types / sizes of MicroLED microdisplays, while ensuring the maintainability and environmental friendliness of the testing process.

[0057] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to the above embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0059] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A water-cooled aging furnace, comprising: The device body; characterized in that, A power distribution area is provided on one side of the device body, and a PG maintenance channel is provided on the other side of the device body. Aging areas are symmetrically arranged on both sides of the PG maintenance channel. At least one exhaust fan is installed at the top of the PG maintenance passage; The aging zone is equipped with a fixing plate, and a heat insulation plate is installed on the side of the fixing plate near the PG maintenance passage. Several water-cooled fans are arranged in an array on one side of the heat insulation plate. On the other side of the fixed plate, a number of test fixture components are arranged in an array, and each test fixture component corresponds to a water-cooled fan.

2. The water-cooled aging furnace according to claim 1, characterized in that, A monitor and a keyboard and mouse box are provided on one side of the device body and in the power distribution area, with the keyboard and mouse box located below the monitor.

3. The water-cooled aging furnace according to claim 1, characterized in that, The test fixture assembly includes a base plate fixedly installed on one side of a fixed plate, a slide rail on the top of the base plate, a slidable interface plate connected to the top of the slide rail, and a handle on one side of the interface plate.

4. A water-cooled aging furnace according to claim 3, characterized in that, A water cooling head is connected to the top of the base plate. A vacuum fixture is provided on the top of the water cooling head. Multiple positioning pins are provided on the top of the vacuum fixture. PG buckles are symmetrically arranged on both sides of the top of the vacuum fixture. A thermocouple is provided on one side of the vacuum fixture.

5. A water-cooled aging furnace according to claim 4, characterized in that, A heat-conducting plate fixture is provided at the top center of the vacuum fixture. An adapter plate is connected to the top of the heat-conducting plate fixture. The product is placed at the center of the adapter plate. The positioning pin and the PG snap fastener cooperate to fix the adapter plate on the top of the vacuum fixture.

6. A water-cooled aging furnace according to claim 5, characterized in that, A vacuum gauge, a PG start button, and a vacuum start button are fixedly installed on one end of the base plate. The PG start button and the vacuum start button are located on both sides of the vacuum gauge.

7. A water-cooled aging furnace according to claim 1, characterized in that, There are two aging zones, which are symmetrically arranged on both sides of the PG maintenance channel, and an FFU unit is installed on the top of each aging zone.

8. A water-cooled aging furnace according to claim 1, characterized in that, The device body has two cabinet doors symmetrically arranged on one side.

9. A water-cooled aging furnace according to claim 1, characterized in that, The bottom of the device body is equipped with multiple support legs and rollers.

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