Uninterruptible power supply cabinet and data center

Abstract

This application relates to the field of power supply technology, providing an uninterruptible power supply (UPS) cabinet and a data center. The UPS cabinet includes a cabinet body, a bypass module, a power module, a busbar, and a fan. The cabinet body houses the bypass module, the power module, and at least a portion of the busbar. Both the bypass module and the power module are electrically connected to the busbar, which is used to electrically connect to a load or power supply device. The heat generated by the power module during operation is greater than that generated by the bypass module. Along the height of the cabinet body, the busbar, bypass module, and power module are arranged sequentially from high to low. Along the depth of the cabinet body, there are gaps between the bypass module and the power module and the back of the cabinet body. A baffle is provided on the back of the cabinet body opposite the bypass module, and the baffle is opposite to the fan. A cutout area is provided on the back of the cabinet body opposite the power module. By providing the baffle and the cutout area, airflow can have both vertical and horizontal flow directions, accommodating the heat dissipation requirements of the power module and the busbar.

Description

Technical Field

[0001] This application relates to the field of power supply technology, and in particular to an uninterruptible power supply cabinet and a data center. Background Technology

[0002] Uninterruptible power supply (UPS) cabinets are common power equipment in buildings such as data center server rooms and prefabricated modular data centers, generally used to power loads (such as servers). Because UPS cabinets often need to be installed side by side with other equipment, resulting in limited side space, a cooling design with top or rear air exhaust is required. However, with rear air exhaust, the conductive busbars at the top of the cabinet, which are used to connect to external power devices or loads, can only rely on natural heat dissipation, posing a higher risk of thermal damage. While top air exhaust can improve the heat dissipation of the top conductive busbars, it can affect the heat dissipation of bottom modules (such as power modules located at the bottom of the cabinet). Therefore, improving the uniformity of heat dissipation has become a critical technical problem that UPS cabinets urgently need to solve. Summary of the Invention

[0003] This application provides an uninterruptible power supply (UPS) cabinet and a data center for improving the uniformity of heat dissipation in the UPS cabinet.

[0004] To achieve the above objectives, the embodiments of this application adopt the following technical solutions: In a first aspect, this application provides an uninterruptible power supply (UPS) cabinet, comprising a cabinet body, a bypass module, a power module, a busbar, and a fan. The cabinet body houses the bypass module, the power module, and at least a portion of the busbar. Both the bypass module and the power module are electrically connected to the busbar, which is used to electrically connect to a load or power supply device. The heat generated by the power module during operation is greater than the heat generated by the bypass module during operation. Along the height of the cabinet body, the busbar, the bypass module, and the power module are arranged sequentially from high to low. Along the depth of the cabinet body, there are gaps between the bypass module and the power module and the back of the cabinet body. A baffle is provided on the back of the cabinet body opposite the bypass module, and the baffle is positioned opposite the fan. A hollow area is provided on the back of the cabinet body opposite the power module.

[0005] In this uninterruptible power supply (UPS) cabinet, with the fan located inside the power module and bypass module, a perforated area opposite the power module creates an airflow channel at the bottom of the cabinet, driving the airflow through the power module, thus effectively dissipating heat from the power module. Secondly, a baffle opposite the bypass module creates another airflow channel, also driving the airflow through the bypass module. Specifically, after the bypass module draws in cool air from the front of the cabinet and blows it towards the baffle, the baffle acts as a deflector, splitting the airflow. A portion of this airflow flows upwards through the gap between the bypass module and the back of the cabinet, reaching the conductive busbar above the bypass module, effectively dissipating heat from the busbar. In other words, the baffle and perforated area allow the airflow into the cabinet to have at least two different flow directions, effectively accommodating the heat dissipation needs of the power module at the bottom and the conductive busbar at the top of the cabinet, overcoming the limitations imposed by the large distance between the power module and the conductive busbar in heat dissipation design.

[0006] Secondly, compared to using the power module as the heat dissipation source for the busbar, the bypass module generates far less heat. Therefore, using the bypass module as the heat dissipation source for the busbar effectively prevents heat from the power module from being carried to the busbar by airflow, thus avoiding repeated heat accumulation at the busbar. This not only improves the heat dissipation effect at the busbar but also enhances the overall rationality of heat dissipation within the cabinet. Furthermore, for components like the power module, which have significant heat generation issues, directly positioning the perforated area opposite the power module minimizes the distance between the power module and the "airflow outlet." This effectively reduces the airflow path, minimizing obstacles and resistance, thereby improving airflow efficiency and ultimately enhancing heat dissipation for the power module. Moreover, this solution, utilizing both the power module and bypass module as airflow drive devices, effectively reduces the number of components inside the cabinet, thereby significantly lowering the design and manufacturing costs of the uninterruptible power supply (UPS) cabinet. In addition, with the fan independent of the power module and bypass module, this solution can also form two different heat dissipation paths based on the hollow area and baffle, which can be compatible with the heat dissipation requirements of the power module and the conductor. Moreover, this solution can provide a different configuration structure, which can improve the diversity of heat dissipation solutions and make the cabinet compatible with the actual needs of different manufacturers.

[0007] In one implementation, the uninterruptible power supply cabinet also includes a switch. Along the height of the cabinet, the switch is located between the busbar and the bypass module. Along the depth of the cabinet, there is a gap between the switch and the back of the cabinet. Along the depth of the cabinet, the switch has a terminal on the side near the back of the cabinet. The terminal is electrically connected to the busbar, the bypass module, and the power module through wires or metal busbars.

[0008] During use, the bypass module draws in airflow from the front of the cabinet and blows it toward the baffle. The airflow is split at the baffle and flows upward along the gap between the bypass module and the back of the cabinet, as well as the gap between the switch and the back of the cabinet, and finally flows out from the top of the cabinet. In this process, since the switch and the terminals on the back of the switch are located in the air duct through which this part of the airflow flows, this part of the airflow can also play a good role in heat dissipation for the switch and can effectively dissipate the heat accumulated at the terminals.

[0009] In one implementation, the uninterruptible power supply cabinet also includes a partition. Along the height of the cabinet, the partition is located between the switch and the busbar. Along the depth of the cabinet, the size of the partition is smaller than the depth of the partition. One end of the partition is closer to the back of the cabinet than the terminals, and the other end of the partition is farther away from the back of the switch than the terminals.

[0010] During use, when the bypass module draws in cold air from the front of the cabinet, the cold air is first deflected at the baffle, creating an upward split. This split airflow flows upward along the gap between the bypass module, the switch, and the back of the cabinet. Since part of the baffle is located above the gap between the switch and the back of the cabinet, this airflow impacts the baffle and is deflected a second time, thus creating a second deflection. Because the back of the baffle is the back of the cabinet, most of this airflow flows towards the side of the baffle away from the back of the cabinet, that is, towards the direction of the switch. This allows the upper surface of the switch to fully contact the airflow, effectively increasing the contact area between the switch and the airflow, which effectively improves the heat dissipation of the switch.

[0011] In one implementation, the busbar includes a main input busbar, a main output busbar, a bypass input busbar, and a bypass output busbar. The main input busbar, main output busbar, bypass input busbar, and bypass output busbar are arranged along the depth direction of the cabinet, and the bypass input busbar and bypass output busbar are closer to the back of the cabinet than the main input busbar and main output busbar. The main input busbar and main output busbar are both electrically connected to the power module, the bypass input busbar and bypass output busbar are both electrically connected to the bypass module, the main input busbar and bypass input busbar are both used to electrically connect to the power supply device, and the main output busbar and bypass output busbar are both used to electrically connect to the load.

[0012] Because the partition size is smaller than the depth of the cabinet along its depth direction, a gap exists between the side of the partition facing away from the back of the cabinet and the front inner wall of the cabinet. This gap allows airflow through the space above and below the partition. In this uninterruptible power supply cabinet, by placing the bypass input and bypass output rows closer to the back of the cabinet than the main input and main output rows, the bypass input and bypass output rows are positioned above the partition, while the main input and main output rows are positioned above the gap between the partition and the front inner wall of the cabinet. This layout ensures that during use, the airflow from the bypass module blowing towards the baffle is... The airflow first turns and splits at the partition, then flows towards the front of the switch. After a second turn and split at the partition, the airflow flows directly to the main input and output rows through the gap between the partition and the inner wall of the front of the cabinet. In other words, the main input and output rows are prioritized by the airflow over the bypass input and output rows. This makes the airflow more targeted, focusing on cooling the main input and output rows that generate more heat. This allocation of cooling weights effectively improves the cooling effect on the main input and output rows, thereby improving the overall cooling effect on the conductive pads.

[0013] In one implementation, the uninterruptible power supply cabinet further includes a flow guide plate, a portion of which is located between the bypass module and the back of the cabinet, and another portion of which is located between the switch and the back of the cabinet; at least two portions of the flow guide plate form an angle with each other, with the opening of the angle facing the terminal; or, the flow guide plate has an inner arc surface facing the terminal.

[0014] During operation, the bypass module draws in cool air from the front of the cabinet. Since the guide plate is located between the bypass module and the back of the cabinet (i.e., between the bypass module and the baffle), the airflow leaving the bypass module first impacts the guide plate, causing a diversion effect. A portion of the airflow that is twisted upwards flows upwards along the guide plate. In a design where at least two parts of the guide plate form an angle, with the angle pointing towards the switch terminals, at least a portion of the guide plate tilts upwards along the height of the cabinet towards the switch terminals. As the airflow flows upwards along the guide plate, this tilted structure affects the airflow direction, causing a certain deflection at the angle and tilted structure, thus directing the airflow towards the switch terminals. This effectively improves heat dissipation for the switch and the terminals on its back, enhancing the safety and reliability of the switch and terminals.

[0015] In the design where the air guide plate has an inner arc surface, the airflow will impact the inner arc surface because the inner arc surface faces the bypass module. Due to the arc angle of the inner arc surface itself, the airflow will change direction following the inner arc surface. Since the inner arc surface faces the switch terminal, the airflow direction will gradually tilt and bend towards the location of the switch terminal as it flows along the inner arc surface. This allows some airflow to flow directly towards the terminal, which can effectively improve the heat dissipation effect of the switch and the terminal on the back of the switch, thereby improving the safety and reliability of the switch and the terminal.

[0016] In one implementation, the baffle is movable relative to the cabinet along the height direction of the cabinet; the baffle has a first position and a second position, in the first position, a portion of the baffle is located between the bypass module and the back of the cabinet, and another portion of the baffle is located between the switch and the back of the cabinet; in the second position, at least a portion of the baffle is located between the power module and the back of the cabinet.

[0017] As power density increases, the heat generated at the upper conductive busbar gradually increases. However, the maximum output airflow of the bypass module has an upper limit. Directly increasing the number of bypass modules would reduce the internal space of the cabinet and potentially increase its size. Therefore, a supply-demand imbalance arises between the airflow of the bypass module and the heat dissipation requirements of the conductive busbar. This imbalance is exacerbated when components such as switches are installed. In this uninterruptible power supply cabinet, the air guide plate is movable relative to the cabinet along its height. During use, because the air guide plate blocks part of the upper open area, the power modules positioned opposite this open area will be directly facing the lower part of the air guide plate. As the module blows the cool airflow from the front of the cabinet towards the open area, the airflow from this part of the power module is intercepted by the guide plate, thus forming a diversion. Some of the airflow will flow upward along the guide plate. In other words, the guide plate can intercept part of the airflow flowing from the power module to the open area and make this part of the airflow flow upward. This intercepted airflow can also dissipate heat for the busbars or switches. This architecture can increase the airflow to the switches and busbars without affecting the internal space or volume of the cabinet. It not only improves the heat dissipation effect at the busbars and switches, but also reduces the cost of adding bypass modules and increasing the volume of the cabinet, and can improve the flexibility and functionality of the internal heat dissipation structure of the cabinet.

[0018] In one implementation, the uninterruptible power supply cabinet also includes a control module and a temperature sensor. Both the temperature sensor and the bypass module are electrically connected to the control module. The temperature sensor is used to detect the temperature of the busbar or terminals. When the temperature is greater than or equal to a preset temperature threshold, the control module is used to control the bypass module to increase its rotation speed.

[0019] During use, the control module can control the airflow of the bypass module based on the real-time temperature detected by the temperature sensor at the terminals or busbars, thereby controlling the heat dissipation effect on the switches or busbars. In this way, when the heat generation of the switches or busbars is low, the control module can enable the bypass module to operate at low power, and when the heat generation of the switches or busbars is high, the control module can enable the bypass module to operate at higher power. This operating mode can effectively improve the bypass module's adaptability to different heat generation conditions of switches and busbars, and enable the load of the bypass module to adapt to changes in heat generation. From the perspective of the bypass module as a whole, this can effectively reduce the energy consumption of the bypass module and improve energy utilization.

[0020] In one implementation, the cabinet also includes an air outlet, at least a portion of which is not lower than the conductive bar along the height of the cabinet; the air outlet is located at the back of the cabinet; or, along the width of the cabinet, the air outlet is located on the left or right side of the cabinet.

[0021] With the air outlet located at the back of the cabinet, the airflow from the top of the cabinet is directed towards the rear. This ensures that the airflow leaving the cabinet from the perforated area and the air outlet is directed towards the rear of the cabinet. Therefore, when deploying uninterruptible power supply (UPS) cabinets on-site (e.g., in a data center server room), the airflow direction of each UPS cabinet is aligned, which not only facilitates the on-site deployment of UPS cabinets but also the planning and layout of on-site cooling ducts. When UPS cabinets are arranged side-by-side, this structure eliminates the need to consider the spacing between adjacent cabinets for heat dissipation, allowing adjacent UPS cabinets to be placed close together. From the perspective of the overall deployment of multiple UPS cabinets, this reduces the overall space occupied by multiple UPS cabinets on-site.

[0022] With the air outlet located on the left or right side of the cabinet, the airflow from the top of the cabinet faces the side. In the case of parallel units, the air outlets on the side of the cabinet can connect to adjacent UPS cabinets. This allows the tops of multiple UPS cabinets to be connected to form an air duct. Furthermore, these air outlets provide a foundation for electrical connections between adjacent UPS cabinets, facilitating the installation of metal busbars or wires. During on-site deployment, connecting the air duct formed by the tops of these UPS cabinets to the on-site exhaust vents creates an independent air duct directly for the UPS cabinets. This structure not only reuses the side wall structure at the top of each UPS cabinet but also isolates the top airflow from the external environment, reducing the impact of other external equipment on the heat dissipation of the UPS cabinets.

[0023] In one implementation, the uninterruptible power supply cabinet also includes a ventilation hood, which is fixed to the cabinet body and covers the air outlet. The ventilation hood includes multiple ventilation holes that are connected to the air outlet.

[0024] By installing a ventilation hood over the air outlet at the top of the cabinet, the hood can "push" outward from the top of the cabinet. Compared to directly covering the air outlet, the non-perforated part of the ventilation hood will not occupy the air outlet, and thus will not become an obstruction to the airflow. This can effectively reduce the air resistance and pressure at the air outlet and improve the actual ventilation effect at the air outlet.

[0025] A second aspect of this application provides a data center including a server and an uninterruptible power supply (UPS) cabinet according to any of the foregoing implementations, the UPS cabinet being electrically connected to the server and used to supply power to the server.

[0026] This uninterruptible power supply (UPS) cabinet can obtain power from the power supply unit, convert it through its internal power module, and supply power to the server. In the event of a failure of either the power supply unit or the power module, the UPS cabinet can obtain power from another power supply unit and supply it to the server through its internal bypass module. In other words, the UPS cabinet can provide multiple power supply paths for the server, which can effectively improve the reliability and stability of the UPS cabinet's power supply to the server. In addition, since this data center includes the UPS cabinet in any of the aforementioned implementations, this data center also has the technical effects of the UPS cabinet in any of the aforementioned implementations. For specific technical effects, please refer to the above description, which will not be repeated here. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of the first type of uninterruptible power supply cabinet provided in the embodiments of this application from a first perspective; Figure 2 This is a schematic diagram of the structure of the first type of uninterruptible power supply cabinet provided in the embodiments of this application from a second perspective; Figure 3 This is a schematic diagram illustrating the working principle of a power module and a bypass module provided in the embodiments of this application; Figure 4This is a structural schematic diagram of the first type of uninterruptible power supply cabinet provided in the embodiments of this application from a third perspective; Figure 5 This is a structural schematic diagram of the first type of uninterruptible power supply cabinet provided in the embodiments of this application from a fourth perspective; Figure 6 This is a schematic diagram of the structure of the second type of uninterruptible power supply cabinet provided in the embodiments of this application; Figure 7 This is a structural schematic diagram of the third type of uninterruptible power supply cabinet provided in the embodiments of this application; Figure 8 This is a structural schematic diagram of the fourth type of uninterruptible power supply cabinet provided in the embodiments of this application; Figure 9 This is a structural schematic diagram of the fifth type of uninterruptible power supply cabinet provided in the embodiments of this application; Figure 10 This is a structural schematic diagram of the sixth type of uninterruptible power supply cabinet provided in the embodiments of this application; Figure 11 This is a structural schematic diagram of the seventh type of uninterruptible power supply cabinet provided in the embodiments of this application; Figure 12 This is a structural schematic diagram of the eighth type of uninterruptible power supply cabinet provided in the embodiments of this application; Figure 13 This is a schematic diagram of an uninterruptible power supply cabinet arranged side by side according to an embodiment of this application; Figure 14 This is a structural schematic diagram of the ninth type of uninterruptible power supply cabinet provided in the embodiments of this application; Figure 15 This is a data center topology diagram provided in an embodiment of this application.

[0029] Figure label: 1000 - Data Center; 1100 - Uninterruptible Power Supply (UPS) Cabinet; 1200 - Load; 1210 - Server; 1300 - Power Supply Unit; 1400 - Power Distribution Cabinet; 1500 - Battery; 1600 - Combiner Box; 100 - Cabinet Body; 110 - Baffle; 120 - Perforated Area; 130 - Air Outlet; 140 - Cabinet Door; 150 - Back Panel; 200 - Bypass Module; 300 - Power Module; 31 0-Rectifier; 320-Inverter; 330-Battery discharger; 400-Conductor busbar; 410-Main input busbar; 420-Main output busbar; 430-Bypass input busbar; 440-Bypass output busbar; 500-Switch; 510-Terminal; 600-Baffle; 700-Guide plate; 710-Inner arc surface; 800-Control module; 900-Ventilation hood; 910-Top wall; 920-Perimeter wall. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] In the embodiments of this application, unless otherwise expressly specified and limited, "above," "over," and "on top" of the first feature and the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" of the first feature and the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0033] In the accompanying drawings of the embodiments of this application, higher-level general structures such as components, assemblies, and devices are represented by guide lines with hollow arrows; lower-level specific entity structures such as parts, plates, and rods are represented by guide lines; hollow structures and enlarged areas such as openings, holes, spaces, and cavities are represented by solid guide lines; auxiliary lines are represented by dashed lines; reference directions are represented by straight lines with arrows; and overall components are represented by horizontal superscript characters.

[0034] The first aspect of this application provides an uninterruptible power supply (UPS) cabinet 1100, which can be applied to large data (communication) centers, large enterprise computer rooms, financial system computer rooms, industrial automation equipment, and dispatch centers, etc. Figure 1 An exemplary schematic diagram of the structure of the first uninterruptible power supply cabinet 1100 provided in the embodiments of this application is shown from a first perspective. Figure 2 An exemplary schematic diagram of the structure of the first type of uninterruptible power supply cabinet 1100 provided in the embodiments of this application is shown from a second perspective. This is to clearly illustrate the internal structure of the uninterruptible power supply cabinet 1100. Figure 2 Part of the side wall of the uninterruptible power supply cabinet 1100 is hidden in the middle, and the internal structure of the uninterruptible power supply cabinet 1100 is shown from a side view.

[0035] See Figure 1 and Figure 2 The uninterruptible power supply cabinet 1100 includes a cabinet body 100, a bypass module 200, a power module 300, a conductor bar 400, and a fan (not shown in the figure). The cabinet body 100 is used to house the bypass module 200, the power module 300, at least part (or all) of the conductor bar 400, and the fan. The cabinet body 100 is a hollow box structure with multiple side walls. Two of the side walls are arranged along the depth direction of the cabinet body 100 (the depth direction is parallel to the x direction in the figure), and both of these side walls are parallel to the width direction of the cabinet body 100 (the width direction is parallel to the y direction in the figure). The side wall located on the front side of the cabinet body 100 forms the cabinet door 140 of the cabinet body 100, and the side wall located on the rear side of the cabinet body 100 forms the back panel 150 of the cabinet body 100. It should be noted that, for ease of understanding, this application defines the side where the cabinet door 140 is located as the front side (front part) of the cabinet 100, and the side where the back panel 150 is located as the rear side (rear part, back) of the cabinet 100. This orientation definition is not intended to limit the specific structure of the uninterruptible power supply cabinet 1100. In some examples, the front side and the rear side can also be understood as the first side and the second side of the cabinet 100. That is, the front side and the rear side are only used to express the two sides of the cabinet 100 that are set opposite to each other.

[0036] Two additional sidewalls among the multiple sidewalls are arranged along the width direction of the cabinet 100 (the width direction is parallel to the y direction in the figure), and both of these sidewalls are parallel to the depth direction of the cabinet 100 (the depth direction is parallel to the x direction in the figure). These two additional sidewalls form the left sidewall and right sidewall of the cabinet 100, respectively. Inside the cabinet 100, along the height direction of the cabinet 100 (the height direction is parallel to the z-direction in the figure), the conductive busbar 400, bypass module 200, and power module 300 are arranged sequentially from high to low. That is, the conductive busbar 400 is located at the top of the cabinet 100, the power module 300 is located at the bottom of the cabinet 100, and the bypass module 200 is located between the power module 300 and the conductive busbar 400. The conductive busbar 400 includes a main output busbar 420, a main input busbar 410, a bypass output busbar 440, and a bypass input busbar 430. The main output busbar 420 and the bypass output busbar 440 are used to connect the load 1200 (e.g., a server 1210 in a computer room) or other uninterruptible power supply cabinet 1100. The main input busbar 410 and the bypass input busbar 430 are used to connect the power supply device 1300, such as mains power or other power generation equipment.

[0037] Continue reading Figure 2Inside the cabinet 100, one or more power modules 300 are installed. Figure 2 The illustration shows an example of multiple power modules 300, which are stacked sequentially from the bottom upwards along the height direction of the cabinet 100 (the height direction is parallel to the z-direction in the figure). Figure 3 An exemplary schematic diagram illustrating the working principle of a power module 300 and a bypass module 200 provided in an embodiment of this application is shown below. Figure 3 Multiple power modules 300 ( Figure 3 The multiple dashed boxes in the diagram represent multiple power modules 300 whose inputs are converged on the same main input line 410; the outputs of multiple power modules 300 are converged on the same main output line 420. During operation, the main input line 410 transfers the electrical energy provided by the power supply unit 1300 to the power modules 300. The power modules 300 can convert the power supplied from the power supply unit 1300 into a stable DC voltage through the internal rectifier 310, and then convert it into a stable AC output through the internal inverter 320. The outputs of all power modules 300 are converged on the same main output line 420, which is connected to the load 1200 for power supply.

[0038] In the event of an malfunction in the power supply unit 1300 connected to the power module 300, the uninterruptible power supply cabinet 1100 will use the externally connected battery 1500 as backup power. The electrical energy of the battery 1500 will be converted into DC voltage by the battery discharger 330 within the power module 300, and then converted into a stable AC output by the inverter 320 of the power module 300, providing continuous and uninterrupted power to the load 1200. In other words, the power module 300 can function as a conversion device between the mains power supply unit 1300 and the load 1200, and also as a conversion device between the battery 1500 and the load 1200.

[0039] Continue reading Figure 2 Inside the cabinet 100, the bypass module 200 is provided with at least one (or more) of them. Figure 2 This illustration shows an example of a bypass module 200, which is positioned above multiple power modules 300 along the height direction of the cabinet 100 (the height direction is parallel to the z-direction in the figure); see reference Figure 3The input side of the bypass module 200 is electrically connected to the bypass input bus 430, which is used to connect to another power supply device 1300. This power supply device 1300 is not the same as the power supply device 1300 to which the aforementioned power module 300 is connected. The output side of the bypass module 200 is electrically connected to the bypass output bus 440, which is used to connect to the load 1200. That is, the input side of the bypass module 200 and the input side of the power module 300 are connected to different power supply devices 1300, while the output side of the bypass module 200 and the output side of the power module 300 are connected to the same load 1200. During operation, if all power modules 300 fail, the bypass module 200 will connect the other power supply device 1300 and the load 1200, directly supplying power to the load 1200, thereby ensuring the continuity of power supply to the load 1200.

[0040] Understandably, during the normal operation of the uninterruptible power supply cabinet 1100, the power module 300 needs to continuously complete two power conversions: rectification and inversion. It operates entirely in a high-frequency switching state, requiring its internal insulated-gate bipolar transistors (IGBTs) to... Power devices such as transistors (IGBTs) generate significant switching and conduction losses. Simultaneously, the associated magnetic components like inductors and transformers experience hysteresis and copper losses due to the high-frequency alternating magnetic field. All these losses are ultimately released as heat, making power module 300 one of the main heat sources of the entire system. Bypass module 200, on the other hand, serves only as a direct power supply channel and does not participate in any energy conversion. It relies solely on static switching to achieve circuit connection and disconnection, remaining in a direct-conducting state under normal conditions. It experiences only a small conduction voltage drop loss and generates almost no additional heat. Furthermore, it only operates briefly during switching, resulting in significantly lower overall losses compared to power module 300. In summary, the various losses generated by power module 300 due to its high-frequency energy conversion are far greater than those of bypass module 200, which only performs direct switching. Consequently, its heat generation is also much higher. Therefore, effectively addressing the heat dissipation of power module 300 is one of the technical challenges that the uninterruptible power supply cabinet 1100 needs to solve.

[0041] Secondly, the input and output currents of the uninterruptible power supply (UPS) cabinet 1100 are typically large. The conductive busbar 400 at the top, used for connecting the input and output, is essentially a conductor with a certain resistance. When current flows through the conductor, heat is generated, and the amount of heat generated is proportional to the square of the current. As the load power of the UPS cabinet 1100 increases to 1200 kW, the current flowing through the conductive busbar 400 also increases. Under the continuous action of the large current, the heat generated by the busbar itself also increases. At the same time, as a key current-carrying component of the power circuit, the conductive busbar 400 is directly connected to heat-generating devices such as the power module 300, and is affected by heat conduction and heat radiation from surrounding heat sources. In addition, the top space is relatively concentrated, and the conductive busbar 400 is arranged in a compact manner, resulting in limited heat dissipation conditions. Heat is easy to accumulate and difficult to dissipate quickly. Therefore, it will still exhibit obvious heat generation under high current operating conditions. Thus, heat dissipation of the conductive busbar 400 located at the top of the cabinet 100 is also one of the technical problems that the UPS cabinet 1100 needs to solve.

[0042] Therefore, this application provides the following technical solutions to address the need for multi-directional heat dissipation in the uninterruptible power supply cabinet 1100. Figure 4 An exemplary schematic diagram of the structure of the first uninterruptible power supply cabinet 1100 provided in the embodiments of this application is shown from a third perspective, wherein the structure of the uninterruptible power supply cabinet 1100 is mainly shown from the side and rear of the uninterruptible power supply cabinet 1100. Figure 5 This paper exemplarily illustrates a structural schematic diagram of the first uninterruptible power supply (UPS) cabinet 1100 provided in an embodiment of this application from a fourth perspective, wherein the internal structure of the UPS cabinet 1100 is shown from the side; see reference. Figure 4 and Figure 5 Along the depth direction of cabinet 100 (the depth direction is parallel to the x direction in the figure), there are gaps between the bypass module 200 and the power module 300 and the back of cabinet 100 (back panel 150 of cabinet 100). Figure 5 As shown by the dotted line at point J), a baffle 110 is provided on the back of the cabinet 100, which is positioned opposite to the bypass module 200. This baffle 110 can be a separate component that is distinct from the back panel 150 of the cabinet 100, or it can reuse a portion of the structure of the back panel 150 of the cabinet 100, for example, a portion of the back panel 150 can be directly used as the baffle 110. Secondly, a hollow area 120 is provided on the back of the cabinet 100, which is positioned opposite to the power module 300. It should be noted that the hollow area 120 here can refer to a perforated area (similar to the structure of a perforated plate) on the back panel 150, or it can refer to a large opening directly on the back panel 150.

[0043] The existing power module 300 and bypass module 200 generally have built-in fans. In one embodiment of this application, the power module 300 and bypass module 200 can be directly reused as the air source inside the cabinet 100. During use, the power module 300 can directly draw in cold air (cold air refers to the air outside the cabinet 100 that has not been exposed to the airflow) from the front of the cabinet 100 (the cabinet door 140 of the cabinet 100 has an opening or perforated structure, which can serve as an inlet for the power module 300 to draw in cold air). The airflow heated by the internal heat source of the cabinet 100 is introduced into the cabinet 100. Since the power module 300 is opposite to the hollow area 120, the power module 300 will blow the airflow directly into the hollow area 120. This part of the airflow will leave the cabinet 100 directly from the hollow area 120. This forms an airflow path where the cabinet 100 is inlet at the front and outlet at the rear. Since this part of the airflow will flow through the power module 300, it can effectively remove the heat accumulated inside the power module 300.

[0044] In addition, the bypass module 200 can also directly draw in cold air from the front of the cabinet 100 (the cabinet door 140 of the cabinet 100 has an opening or perforated structure, which can serve as an inlet for the bypass module 200 to draw in cold air) and introduce it into the cabinet 100. Unlike the power module 300, the baffle 110 on the back of the cabinet 100 is positioned opposite the bypass module 200. After the power module 300 blows the drawn-in cold air toward the baffle 110, this airflow will... The airflow impacts the baffle 110, creating a diversion effect. Part of this airflow flows upwards towards the cabinet 100 due to the baffle 110's deflection, while the other part flows downwards towards the cabinet 100. Because of the gap J between the bypass module 200 and the baffle 110, the upward-flowing airflow follows this gap. Furthermore, because components such as the conductive busbar 400 are located beside... Above the circuit module 200, this airflow will flow over the location of the conductive busbar 400 and then exit from the top of the cabinet 100 (the top of the cabinet 100 has an opening or porous structure, which can serve as an outlet for the airflow to leave the cabinet 100). During this process, because the airflow flows over the conductive busbar 400, it can effectively carry away the heat accumulated on the conductive busbar 400, thereby achieving a heat dissipation effect on the conductive busbar 400; among which, due to power Module 300 is located below bypass module 200, and there is also a gap J between power module 300 and the back of cabinet 100. Therefore, the downward airflow will flow along the gap J between power module 300 and the back of cabinet 100. Since the gap J between power module 300 and the back of cabinet 100 is directly connected to the hollow area 120 on the back of cabinet 100, this airflow can leave cabinet 100 from the hollow area 120 on the back of cabinet 100.

[0045] In another embodiment of this application, unlike the previous embodiments, the fan is not an internal structure of the power module 300 or bypass module 200. Instead, the fan is an independent structure of the power module 300 and bypass module 200. In this case, multiple fans can be arranged sequentially from top to bottom along the height direction of the cabinet 100 (the height direction is parallel to the z-direction in the figure). These fans are also arranged along the depth direction of the cabinet 100 (the depth direction is parallel to the x-direction in the figure) (these fans can be located in front of the bypass module 200 and the power module 300, or behind them). During use, these fans can act as a wind source, drawing in cold air from the front of the cabinet 100 (the cabinet door 140 of the cabinet 100 has an opening or perforated structure, which can serve as an inlet for the fan to draw in cold air), and then... Similar to the previous example, the airflow blowing towards the hollow area 120 or the baffle 110 can directly leave the cabinet 100. Since this part of the airflow flows through the power module 300, it can dissipate heat from the power module 300. The airflow blowing towards the baffle 110 will be split. A part of the airflow will flow upwards to the conductive busbar 400 under the folding of the baffle 110 and leave the cabinet 100 from the top of the cabinet 100 (the top of the cabinet 100 has an opening or porous structure, which can serve as an outlet for the airflow to leave the cabinet 100). During this process, since this part of the airflow flows through the bypass module 200 and the conductive busbar 400, it can dissipate heat from the bypass module 200 and the conductive busbar 400. The airflow that is blocked by the baffle 110 and flows downwards will flow from the gap J between the power module 300 and the back of the cabinet 100 to the hollow area 120, and then leave the cabinet 100.

[0046] In other words, the fan in this application embodiment can refer to the cooling fan inside the power module 300 and the bypass module 200, or it can refer to a fan that is independent of the power module 300 and the bypass module 200 in another case. Specifically, it can be adapted according to the actual situation.

[0047] See Figure 2 , Figure 4 and Figure 5In the uninterruptible power supply cabinet 1100 provided in this application embodiment, with the fan disposed inside the power module 300 and the bypass module 200, by providing a hollow area 120 opposite to the power module 300, an airflow channel can be constructed at the bottom of the cabinet 100 with the power module 300 as the driving device for airflow, thereby effectively dissipating heat from the power module 300. Secondly, by providing a baffle 110 opposite to the bypass module 200, another airflow channel can be constructed with the bypass module 200 as the driving device for airflow. Specifically, after the bypass module 200 draws in cold air from the front of the cabinet 100 and blows this airflow toward the baffle 110, the baffle 110 can act as a deflector, allowing... This airflow is diverted at the baffle 110, and a portion of the airflow can flow upward along the gap J between the bypass module 200 and the back of the cabinet 100, thereby flowing towards the conductive busbar 400 located above the bypass module 200. This can effectively dissipate heat from the conductive busbar 400. In other words, by setting the baffle 110 and the hollow area 120, the airflow flowing into the cabinet 100 can have at least two different flow directions, one vertical and one horizontal. Based on this, it can effectively meet the heat dissipation requirements of the power module 300 located at the bottom of the cabinet 100 and the conductive busbar 400 located at the top of the cabinet 100, and can overcome the limitation of the heat dissipation design caused by the large distance between the positions of the power module 300 and the conductive busbar 400.

[0048] Secondly, compared to using the power module 300 as the heat dissipation source for the conductive busbar 400, since the bypass module 200 generates far less heat than the power module 300, using the bypass module 200 as the heat dissipation source for the conductive busbar 400 effectively prevents the heat from the power module 300 from being carried to the conductive busbar 400 by the airflow. This avoids the repeated accumulation of heat at the conductive busbar 400, which not only effectively improves the heat dissipation effect at the conductive busbar 400 but also improves the rationality of heat dissipation within the cabinet 100. In addition, for components like the power module 300 that have serious heat generation problems, in this embodiment, by making the hollow area 120 directly opposite the power module 300, the distance between the power module 300 and the "airflow outlet" can be minimized. This effectively reduces the airflow path, reduces airflow obstacles and resistance, and thus effectively improves airflow efficiency. For the power module 300, this effectively improves the heat dissipation effect. Furthermore, this solution, which utilizes the power module 300 and bypass module 200 as airflow drive devices, effectively reduces the number of components inside the cabinet 100, thereby significantly lowering the design and manufacturing costs of the uninterruptible power supply cabinet 1100. Additionally, with the fan independent of the power module 300 and bypass module 200, this solution can also create two different heat dissipation paths based on the perforated area 120 and the baffle 110, accommodating the heat dissipation needs of both the power module 300 and the conductive busbar 400. Moreover, this solution provides a different configuration structure, increasing the versatility of heat dissipation solutions and enabling the cabinet 100 to meet the actual needs of different manufacturers.

[0049] For ease of explanation, each embodiment described below will be based on the example of the fan being located inside the power module 300 and the bypass module 200. For the scheme of the fan being independent of the power module 300 and the bypass module 200, please refer to the implementation.

[0050] Continue reading Figure 2 , Figure 4 and Figure 5 In one embodiment of this application, the uninterruptible power supply cabinet 1100 further includes a switch 500. Along the height direction of the cabinet 100 (the height direction is parallel to the z direction in the figure), the switch 500 is located between the conductive busbar 400 and the bypass module 200. Along the depth direction of the cabinet 100 (the depth direction is parallel to the x direction in the figure), there is a gap between the switch 500 and the back of the cabinet 100. This gap is connected to the gap between the bypass module 200 and the back of the cabinet 100. That is, the gap between the switch 500 and the back of the cabinet 100 can serve as a bridge between the gap between the bypass module 200 and the back of the cabinet 100 and the airflow outlet at the top of the cabinet 100, so that the two are connected.

[0051] Continue reading Figure 2 and Figure 4 A terminal 510 is located on the side of switch 500 near the back of cabinet 100. Terminal 510 is electrically connected to conductor 400, bypass module 200, and power module 300 via wires or metal busbars. Switch 500 controls the input and output of power module 300 and bypass module 200. Specifically, in uninterruptible power supply cabinet 1100, switch 500 mainly performs the functions of circuit on / off control, operating mode switching, fault isolation, and safety protection. When power supply unit 1300 and power module 300 are normal, switch 500 is responsible for connecting the rectifier and inverter circuits, allowing electrical energy to be stably output to load 1200 after being transformed by power module 300. When power supply unit 1300 is interrupted or malfunctions, the relevant switch 500 quickly switches to the battery 1500 power supply circuit to protect the load. The switch 500 ensures uninterrupted power supply. In case of equipment overload, short circuit, or internal fault, the switch 500 will quickly disconnect, cutting off the dangerous circuit and protecting the power module 300, battery 1500, and load 1200 from damage. In bypass mode, the switch 500 is responsible for directly switching the load 1200 to the channel of another power supply device 1300, while isolating the inverter section for easy maintenance and repair. Overall, the switch 500 is the execution component of the uninterruptible power supply cabinet 1100 for power supply switching, safety protection, and mode conversion. Because the switch 500 needs to frequently switch inputs and outputs, the heat generated at the terminal 510 of the switch 500 is relatively large. Furthermore, since the switch 500 needs to connect to all inputs and outputs, the wires or metal strips between the switch 500 and the back of the cabinet 100 are crisscrossed. Figure 2 As shown in area A), the dense arrangement also exacerbates the heat generation at terminal 510 of switch 500.

[0052] During use, the uninterruptible power supply cabinet 1100 provided in this application embodiment draws in airflow from the front of the cabinet 100 and blows it toward the baffle 110. The airflow is split at the baffle 110 and flows upward along the gap between the bypass module 200 and the back of the cabinet 100 and the gap between the switch 500 and the back of the cabinet 100, and finally flows out from the top of the cabinet 100. During this process, since the switch 500 and the terminal 510 on the back of the switch 500 are located on the air duct through which this part of the airflow flows, this part of the airflow can also play a good heat dissipation role for the switch 500 and can effectively dissipate the heat accumulated at the terminal 510.

[0053] In one embodiment of this application, the uninterruptible power supply cabinet 1100 further includes a partition 600. Figure 6 This is a structural schematic diagram of the second type of uninterruptible power supply cabinet 1100 provided in the embodiments of this application; see reference. Figure 6Along the height direction of cabinet 100 (parallel to the z-direction in the diagram), partition 600 is located between switch 500 and conductive bar 400. Along the depth direction of cabinet 100 (parallel to the x-direction in the diagram), the dimension C of partition 600 is smaller than the depth S of partition 600 (it should be noted that the depth S of partition 600 refers to the distance between the end of partition 600 away from cabinet door 140 and cabinet door 140). Furthermore, one end of partition 600 is closer to the back of cabinet 100 than terminal 510, and the other end of partition 600 is farther away from the back of switch 500 than terminal 510. This makes partition 600 relatively close to the back of cabinet 100, and a part of partition 600 is located just above the gap between switch 500 and the back of cabinet 100, while the other part of partition 600 is located above switch 500. During use, when bypass module 200 is drawn in from the front of cabinet 100... After the cold airflow, it is first blocked at the baffle 110, forming an upward split. This split airflow flows upward along the gap between the bypass module 200 and the back of the switch 500 and the cabinet 100. Since part of the partition 600 is located above the gap between the switch 500 and the back of the cabinet 100, this part of the airflow will hit the partition 600 and be blocked a second time at the partition 600, thus forming a second deflection. Since the back of the partition 600 is the back plate 150 of the cabinet 100, most of this part of the airflow will flow towards the side of the partition 600 away from the back plate 150 of the cabinet 100, that is, towards the direction where the switch 500 is located. This allows the upper surface of the switch 500 to also make full contact with the airflow. For the switch 500, this is equivalent to effectively increasing the contact area between the switch 500 and the airflow, which effectively improves the heat dissipation effect of the switch 500.

[0054] In one embodiment of this application, the side of the partition 600 facing the back of the cabinet 100 can directly abut against the back of the cabinet 100, forming a right-angle structure. This allows the upward airflow to flow towards the switch 500 at the partition 600. In another embodiment of this application, the side of the partition 600 facing the back of the cabinet 100 can also maintain a certain gap with the interior of the cabinet 100. This gap allows the upward airflow to flow directly to the location of the conductive bar 400. As for the partition 600, it can be fixed to the back of the cabinet 100, that is, the back panel 150, or it can be fixed to the left or right side wall of the cabinet 100. Specifically, it can be adapted according to the actual situation.

[0055] Figure 7 This is a structural schematic diagram of the third type of uninterruptible power supply cabinet 1100 provided in the embodiments of this application, see below. Figure 7In one embodiment of this application, the main input row 410, the main output row 420, the bypass input row 430, and the bypass output row 440 are arranged along the depth direction of the cabinet 100 (the depth direction is parallel to the x direction in the figure), and the bypass input row 430 and the bypass output row 440 are closer to the back of the cabinet 100 than the main input row 410 and the main output row 420. That is, the bypass input row 430 and the bypass output row 440 are located on the side of the main input row 410 and the main output row 420 facing the back of the cabinet 100. Specifically, the main input line 410 can be closer to the back of the cabinet 100 than the main output line 420, or the main output line 420 can also be closer to the back of the cabinet 100 than the main output line 420; the bypass input line 430 can be closer to the back of the cabinet 100 than the bypass output line 440, or the bypass output line 440 can be closer to the back of the cabinet 100 than the bypass input line 430.

[0056] The main input line 410 and main output line 420 are both electrically connected to the power module 300, and the bypass input line 430 and bypass output line 440 are both electrically connected to the bypass module 200. The main input line 410 and bypass output line 440 are used to electrically connect different power supply devices 1300, and the main output line 420 and bypass output line 440 are used to electrically connect the load 1200. That is, the main input line 410 is a conductive "bridge" between the power supply device 1300 and the power module 300, the main output line 420 is a conductive "bridge" between the power module 300 and the load 1200, the bypass input line 430 is a conductive "bridge" between another power supply device 1300 and the bypass module 200, and the bypass output line 440 is a conductive "bridge" between the bypass module 200 and the load 1200.

[0057] It can be understood that when the uninterruptible power supply cabinet 1100 operates normally, since the main input row 410 and the main output row 420 are both electrically connected to the power module 300, the main input row 410 and the main output row 420 need to carry the continuous large current of the high-power electric energy conversion circuit. They not only need to transmit the input electric energy of the power supply device 1300 (such as the mains power), but also provide a stable current-carrying channel for the rectification and inversion links. In addition, power devices such as insulated gate bipolar transistors supporting the main circuit are in the high-frequency switching working state. Not only will the conduction losses of the main input row 410 and the main output row 420 themselves increase with the continuous large current, but the large amount of heat dissipated by the surrounding power module 300 will further exacerbate the heat accumulation of the main input row 410 and the main output row 420 through heat conduction and heat radiation. In contrast, the bypass input row 430 and the bypass output row 440 are only used as emergency direct-through standby circuits. Under normal operating conditions, almost no load current passes through them, and they are only conducted briefly when switching to the bypass mode. Moreover, there is no high-frequency electric energy conversion link in the bypass circuit, and there is no additional device heating superposition. Their own conduction losses are low, and heat is difficult to accumulate. Therefore, the heat generation of the main input row 410 and the main output row 420 is much higher than that of the bypass input row 430 and the bypass output row 440.

[0058] Because the dimension C of the partition 600 is smaller than its depth S along the depth direction of the cabinet 100 (parallel to the x-direction in the figure), there is a certain gap between the side of the partition 600 away from the back of the cabinet 100 and the front inner wall of the cabinet 100 (i.e., the cabinet door 140). This gap allows airflow through the space above and below the partition 600. In the uninterruptible power supply cabinet 1100 provided in this embodiment, by making the bypass input row 430 and bypass output row 440 closer to the back of the cabinet 100 than the main input row 410 and main output row 420, the bypass input row 430 and bypass output row 440 are positioned above the partition 600 inside the cabinet 100, while the main input row 410 and main output row 420 are positioned above the gap between the partition 600 and the front inner wall of the cabinet 100. This layout arrangement allows for airflow through the partition 600. During use, the airflow from the bypass module 200 blowing towards the baffle 110 is first turned and split at the baffle 110 before flowing towards the partition 600. This airflow is then turned and split a second time at the partition 600 before flowing towards the front of the switch 500. It then flows directly from the gap between the partition 600 and the inner wall of the front side of the cabinet 100 to the main input row 410 and the main output row 420. In other words, the main input row 410 and the main output row 420 are blown towards the airflow more preferentially than the bypass input row 430 and the bypass output row 440. Therefore, this airflow is targeted and can focus on dissipating heat from the main input row 410 and the main output row 420, which generate more heat. This allocation of heat dissipation weight can effectively improve the heat dissipation effect of the main input row 410 and the main output row 420, thereby improving the overall heat dissipation effect of the conductive row 400.

[0059] Figure 8 An exemplary structural schematic diagram of the fourth type of uninterruptible power supply cabinet 1100 provided in this application embodiment is shown below. Figure 8 In one embodiment of this application, the uninterruptible power supply cabinet 1100 further includes a flow guide plate 700. A portion of the flow guide plate 700 is located between the back of the bypass module 200 and the cabinet 100, and another portion of the flow guide plate 700 is located between the back of the switch 500 and the cabinet 100. In one example of this application, the flow guide plate 700 is a folded plate structure, wherein at least two portions of the flow guide plate 700 form an included angle α, and the opening of the included angle α faces the terminal 510.

[0060] During use, the bypass module 200 draws in cold air from the front of the cabinet 100. Since the guide plate 700 is located between the bypass module 200 and the back of the cabinet 100 (i.e., between the bypass module 200 and the baffle 110), the airflow leaving the bypass module 200 first impacts the guide plate 700, resulting in a diversion effect at the guide plate 700. A portion of the airflow that is twisted upwards flows upwards along the guide plate 700. Furthermore, because at least two parts of the guide plate 700 form an angle α with each other, and this angle α faces the terminal 510 of the switch 500, this causes the guide plate 700 to... At least a portion of the structure will tilt upwards from bottom to top towards the side where the terminal 510 of the switch 500 is located, along the height direction of the cabinet 100 (the height direction is parallel to the z direction in the figure). As the airflow flows upward along the guide plate 700, this tilted structure will affect the direction of airflow, causing the airflow direction to change at the angle and the tilted structure, thereby causing the airflow to flow towards the terminal 510 of the switch 500. For the switch 500 and the terminal 510 on the back of the switch 500, this can effectively improve the heat dissipation effect at this location, thereby improving the safety and reliability of the switch 500 and the terminal 510.

[0061] In another example of the embodiments of this application, the deflector 700 has an inner arc surface 710 (an arc-shaped curved surface that is recessed inward from the surface of the deflector 700). Figure 9 An exemplary structural schematic diagram of the fifth type of uninterruptible power supply cabinet 1100 provided in this application embodiment is shown below. Figure 9 The inner arc surface 710 faces the terminal 510. During use, the bypass module 200 draws in cold air from the front of the cabinet 100. Since the guide plate 700 is located between the bypass module 200 and the back of the cabinet 100, that is, between the bypass module 200 and the baffle 110, the airflow leaving the bypass module 200 will first collide with the guide plate 700, thus causing a diversion effect at the guide plate 700. A portion of the airflow that is twisted upward will flow upward along the guide plate 700. Unlike the previous example, because the inner arc surface 710 of the guide plate 700 faces the bypass module 200, therefore... The airflow impacts the inner arc surface 710. Due to the arc angle of the inner arc surface 710, the airflow changes direction following the inner arc surface 710. Since the inner arc surface 710 faces the terminal 510 of the switch 500, the airflow direction gradually tilts and bends towards the location of the terminal 510 of the switch 500 as it flows along the inner arc surface 710. This causes some airflow to flow directly towards the terminal 510. For the switch 500 and the terminal 510 on the back of the switch 500, this can effectively improve the heat dissipation effect, thereby improving the safety and reliability of the switch 500 and the terminal 510.

[0062] Figure 10 An exemplary structural schematic diagram of the sixth type of uninterruptible power supply cabinet 1100 provided in this application embodiment is shown below. Figure 8 and Figure 10 In one embodiment of this application, the guide plate 700 is movable relative to the cabinet 100 along the height direction of the cabinet 100 (the height direction is parallel to the z-direction in the figure). Specifically, the guide plate 700 has at least two different first positions and second positions. In the first position, such as... Figure 8 As shown, a portion of the deflector 700 is located between the bypass module 200 and the back of the cabinet 100, and another portion of the deflector 700 is located between the switch 500 and the back of the cabinet 100; in the second position, as... Figure 10 As shown, the deflector plate 700 can move downward a certain distance relative to the cabinet 100, which allows at least a portion of the deflector plate 700 to move between the power module 300 located below the bypass module 200 and the back of the cabinet 100. That is, in the second position, at least a portion of the deflector plate 700 can be located between the power module 300 and the hollow area 120, and can partially block the hollow area 120 along the depth direction of the cabinet 100 (the depth direction is parallel to the x direction in the figure).

[0063] During use, because the deflector plate 700 blocks part of the upper-set hollow area 120, the power module 300, which is positioned opposite this hollow area 120, will be directly facing the part of the deflector plate 700 that is lowered. As the power module 300 blows the cold air from the front of the cabinet 100 toward the hollow area 120, the airflow from this part of the power module 300 will be intercepted by the deflector plate 700, thus forming a diversion. Some of the airflow will flow upward along the deflector plate 700. In other words, the deflector plate 700 can intercept part of the airflow flowing from the power module 300 to the hollow area 120 and make this part of the airflow flow upward.

[0064] It is understandable that as the power density increases, the heat generated at the upper conductive busbar 400 will gradually increase. However, the maximum output airflow of the bypass module 200 has an upper limit. Directly increasing the number of bypass modules 200 would reduce the internal space of the cabinet 100 and may even increase the volume of the cabinet 100. Therefore, a supply-demand imbalance will arise between the airflow of the bypass module 200 and the heat dissipation requirements at the conductive busbar 400. This imbalance will be exacerbated when components such as the switch 500 are installed. In the uninterruptible power supply cabinet 1100 provided in this embodiment, the guide plate 700 is positioned relative to the cabinet 100... The cabinet 100 is movable along its height (parallel to the z-direction in the diagram), which allows it to intercept a portion of the airflow from the power module 300 via the baffle 700 and supply it to the conductive busbar 400 or switch 500 for heat dissipation. This architecture increases the airflow to the switch 500 and conductive busbar 400 without affecting the internal space or volume of the cabinet 100. This not only improves the heat dissipation effect at the conductive busbar 400 and switch 500, but also reduces the cost of adding the bypass module 200 and increasing the volume of the cabinet 100, thereby improving the flexibility and functionality of the internal heat dissipation structure of the cabinet 100.

[0065] Continue reading Figure 6 In one embodiment of this application, the uninterruptible power supply cabinet 1100 further includes a control module 800 and a temperature sensor (not shown in the figure). Both the temperature sensor and the bypass module 200 are electrically connected to the control module 800. The temperature sensor is used to detect the temperature of the conductive busbar 400 or the terminal 510. When the temperature exceeds a preset temperature threshold, the control module 800 controls the bypass module 200 to increase its rotation speed. That is, in this embodiment, the control module 800 can control the airflow of the bypass module 200 based on the real-time temperature detected by the temperature sensor at the terminal 510 or the conductive busbar 400, thereby controlling the operation of the switch 500 or the conductive busbar 400. Heat dissipation effect: In this way, when the heat generation of switch 500 or busbar 400 is small, the bypass module 200 can be operated at low power by control module 800. When the heat generation of switch 500 or busbar 400 is large, the bypass module 200 can be operated at higher power by control module 800. This operation mode can effectively improve the adaptability of bypass module 200 to different heat generation conditions of switch 500 and busbar 400, and can make the load of bypass module 200 adapt to changes in heat generation. From the perspective of bypass module 200 as a whole, this can effectively reduce the energy consumption of bypass module 200 and improve energy utilization.

[0066] In one embodiment of this application, the cabinet 100 further includes an air outlet 130. Figure 11 This is a structural schematic diagram of the seventh type of uninterruptible power supply cabinet 1100 provided in the embodiments of this application. Figure 12 This is a structural schematic diagram of the eighth type of uninterruptible power supply cabinet 1100 provided in the embodiments of this application, see below. Figure 11 and Figure 12 The air outlet 130 is located at least partially (or entirely) at a position not lower than the conductive busbar 400; see reference Figure 11 In one example of this application embodiment, the air outlet 130 is located at the back of the cabinet 100. That is, along the height direction of the cabinet 100 (the height direction is parallel to the z-direction in the figure), the back of the cabinet 100 is provided with the air outlet 130, baffle 110 and hollow area 120 from top to bottom. The air outlet 130 is the opening at the top of the cabinet 100 for air outlet in the aforementioned embodiment. This arrangement allows the air outlet at the top of the cabinet 100 to face the rear of the cabinet 100, which means that the airflow leaving the cabinet 100 from the hollow area 120 and the air outlet 130 is located at the rear of the cabinet 100. Thus, the process of arranging the uninterruptible power supply cabinet 1100 on site (e.g., in the server room of data center 1000) is... This design allows each uninterruptible power supply (UPS) cabinet 1100 to have a unified airflow direction, which not only facilitates the on-site deployment of UPS cabinets 1100 but also the planning and layout of on-site heat dissipation ducts. When there are UPS cabinets 1100 side by side, this structure eliminates the need to consider the space reserved between adjacent cabinets for heat dissipation, allowing adjacent UPS cabinets 1100 to be placed close together. From the perspective of the overall deployment of multiple UPS cabinets 1100, this reduces the overall space occupied by multiple UPS cabinets 1100. Secondly, this airflow direction allows multiple UPS cabinets 1100 to have their airflow directed to the same side, which further facilitates on-site overall layout and improves space utilization.

[0067] Figure 13 An exemplary schematic diagram of an uninterruptible power supply cabinet 1100 arranged side by side according to an embodiment of this application is shown below. Figure 12 and Figure 13In another embodiment of this application, along the width direction of the cabinet 100 (the width direction is parallel to the y-direction in the figure), the air outlet 130 is located on the left or right side wall of the cabinet 100, that is, the air outlet 130 is located on the side of the cabinet 100; this makes the air outlet direction of the top of the cabinet 100 face the side of the cabinet 100. In the case of parallel units, the air outlet 130 located on the side of the cabinet 100 can connect to the adjacent uninterruptible power supply cabinet 1100. On the one hand, it can make the tops of multiple uninterruptible power supply cabinets 1100 connected to form an air duct; on the other hand, these air outlets 130 can also provide a foundation for electrical connections between adjacent uninterruptible power supply (UPS) cabinets 1100, thus facilitating the installation and deployment of metal busbars or wires. During on-site deployment, connecting the air ducts formed by the tops of these UPS cabinets 1100 with the on-site exhaust vents can create an independent air duct directly for the UPS cabinets 1100. This structure not only reuses the side wall structure at the top of each UPS cabinet 1100, but also separates the top exhaust of the UPS cabinets 1100 from the external environment, reducing the impact of other external equipment on the heat dissipation of the UPS cabinets 1100.

[0068] Figure 14 An exemplary structural schematic diagram of the ninth type of uninterruptible power supply cabinet 1100 provided in this application embodiment is shown; Figure 14 The image shows the air outlet 130 located at the top of the cabinet 100. (See attached image.) Figure 14 In one embodiment of this application, the uninterruptible power supply cabinet 1100 further includes a ventilation hood 900. The ventilation hood 900 is fixed to the cabinet body 100 and covers the outside of the air outlet 130. The ventilation hood 900 itself includes a top wall 910 (a wall surface away from the cabinet body 100 along the z-axis), a peripheral wall 920 (a wall surface extending along the z-axis direction), and a plurality of ventilation holes. The peripheral wall 920 is arranged around the top wall 910. The peripheral wall 920 and the top wall 910 together form the ventilation hood 900. A portion of the plurality of ventilation holes is located on the top wall 910, and another portion of the plurality of ventilation holes is located on the peripheral wall 920. In other words, ventilation holes are provided on both the peripheral wall 920 and the top wall 910, and these ventilation holes are all connected to the air outlet 130.

[0069] From another perspective, the ventilation hood 900 protrudes from the top of the cabinet 100 in a direction away from the top of the cabinet 100. In other words, the ventilation hood 900 protrudes upward from the top of the cabinet 100. Furthermore, ventilation holes are provided on the entire surface of the ventilation hood 900. The shape of the portion of the ventilation hood 900 protruding from the top of the cabinet 100 can be a regular polyhedron, or a hemisphere, etc.; the shape of the portion of the ventilation hood 900 protruding from the top of the cabinet 100 can also be an irregular shape, which can be adapted according to the actual situation.

[0070] In one example of the embodiments of this application, the peripheral wall 920 and the top wall 910 can be integrally formed components, such as by integral stamping or by machine tool forging. The integral forming method is not limited to the above two methods and can be selected flexibly. It is understood that the stress distribution between the integrally formed peripheral wall 920 and the top wall 910 is more uniform, the connection strength between the two is better, the pressure resistance is more stable, and the service life is longer.

[0071] In another example of this application embodiment, the peripheral wall 920 and the top wall 910 can also be independent components. In other words, the ventilation hood 900 is obtained by assembling and connecting the peripheral wall 920 and the top wall 910. The connection method between the peripheral wall 920 and the top wall 910 can be a permanent connection, such as adhesive connection, welding, and riveting. The connection method between the peripheral wall 920 and the top wall 910 can also be a detachable connection, such as a snap-fit ​​connection formed by clips and slots, or a threaded connection achieved by fasteners such as screws or bolts. It is understood that the ventilation hood 900 obtained by assembly and splicing can be modularly manufactured in batches. Such a structural design is more convenient in the manufacturing and transportation process, occupies less volume, and is more conducive to mass production, which can improve the efficiency of large-scale production of the ventilation hood 900.

[0072] In one example of this application embodiment, ventilation holes can be obtained by drilling holes in the plate, for example, by drilling multiple through holes in the formed peripheral wall 920 or top wall 910 to form ventilation holes. In another example of this application embodiment, a weaving process can also be used, for example, using metal wire as raw material for weaving. During the weaving of the ventilation cover 900, gaps are left between adjacent metal wires, so that multiple ventilation holes can be directly obtained during the formation of the peripheral wall 920 or top wall 910. There are many ways to form ventilation holes, which will not be listed one by one here. The specific method can be selected according to the actual situation.

[0073] Continue reading Figure 14 In the uninterruptible power supply cabinet 1100 provided in this application embodiment, the ventilation hood 900 itself includes a radially extending top wall 910 and an axially extending peripheral wall 920. By setting the ventilation hood 900 at the air outlet 130 at the top of the cabinet 100, the peripheral wall 920 of the ventilation hood 900 can "push up" the top wall 910 from the air outlet 130 at the top of the cabinet 100. Compared with directly covering the air outlet 130 with the top wall 910, the non-perforated part of the top wall 910 will not occupy the air outlet 130, and thus the non-perforated part of the top wall 910 will not become an obstacle structure for airflow to enter and exit the air outlet 130. This can effectively reduce the wind resistance and pressure of airflow at the air outlet 130.

[0074] Furthermore, in the scheme where the top wall 910 directly covers the air outlet 130, the "actual ventilation area" of the airflow is equal to the area of ​​the air outlet 130 multiplied by the opening ratio of the top wall 910. However, in this embodiment, not only is there a plurality of ventilation holes on the top wall 910, but also a plurality of ventilation holes on the peripheral wall 920 that "lifts" the top wall 910. In this embodiment, the actual ventilation area of ​​the airflow is equal to the total area of ​​the peripheral wall 920 and the top wall 910 multiplied by the opening ratio, or directly equal to the area of ​​the air outlet 130 (when the product of the total area of ​​the peripheral wall 920 and the top wall 910 multiplied by the opening ratio is greater than or equal to the area of ​​the air outlet 130, the actual ventilation area is directly equal to the area of ​​the air outlet 130 due to the limitation of the area of ​​the air outlet 130). Therefore, in this embodiment, the peripheral wall 920 and the plurality of ventilation holes on its surface can not only effectively increase the actual ventilation area of ​​the airflow at the air outlet 130, but also increase the upper limit of the actual ventilation area at the air outlet 130.

[0075] Figure 15 An exemplary topology diagram of a data center 1000 according to an embodiment of this application is shown below. Figure 15 The data center 1000 includes a power supply unit 1300, a power distribution cabinet 1400, a battery 1500, a combiner box 1600, a server 1210 (the server 1210 in this embodiment is the load 1200 in the previous embodiment), and an uninterruptible power supply cabinet 1100 in any of the previous embodiments. One side of the uninterruptible power supply cabinet 1100 is electrically connected to the power supply unit 1300 through the power distribution cabinet 1400, and the other side of the uninterruptible power supply cabinet 1100 is electrically connected to the server 1210 through another power distribution cabinet 1400. The uninterruptible power supply cabinet 1100 is also electrically connected to the battery 1500 through the combiner box 1600. The uninterruptible power supply cabinet 1100 is used to supply power to the server 1210. For the process of switching power circuits inside the uninterruptible power supply cabinet 1100, please refer to the above description, which will not be repeated here.

[0076] See Figure 3 and Figure 14The uninterruptible power supply (UPS) cabinet 1100 can draw power from the power supply unit 1300 and convert it through its internal power module 300 to power the server 1210. In the event of a failure in the power supply unit 1300, the UPS cabinet 1100 can draw power from the backup battery 1500 and power the server 1210 through its internal power module 300. If the power supply unit 1300, battery 1500, or power module 300 all fail, the UPS cabinet 1100 can draw power from another power supply unit 1300 and power it through its internal power module 300. The bypass module 200 transmits power to the server 1210, meaning that the uninterruptible power supply cabinet 1100 can provide at least three power supply paths for the server 1210. This effectively improves the reliability and stability of the power supply from the uninterruptible power supply cabinet 1100 to the server 1210. In addition, since the data center 1000 provided in this application embodiment includes the uninterruptible power supply cabinet 1100 in any of the aforementioned embodiments, the data center 1000 provided in this application embodiment also has the technical effects of the uninterruptible power supply cabinet 1100 in any of the aforementioned embodiments. For specific technical effects, please refer to the above description, which will not be repeated here.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. All such modifications or substitutions should be covered within the protection scope of this application, and should not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application. Therefore, the protection scope of this application should be determined by the protection scope of the claims.

Claims

1. An uninterruptible power supply cabinet, characterized in that, Includes cabinet, bypass module, power module, busbar and fan; among which The cabinet is used to house the bypass module, the power module and at least part of the busbar. The bypass module and the power module are both electrically connected to the busbar. The busbar is used to electrically connect to a load or power supply device. The heat generated when the power module is working is greater than the heat generated when the bypass module is working. Along the height direction of the cabinet, the conductive busbar, the bypass module, and the power module are arranged sequentially from high to low; Along the depth direction of the cabinet, there are gaps between the bypass module and the power module and the back of the cabinet. The back of the cabinet, which is opposite to the bypass module, is provided with a baffle, which is opposite to the fan. The back of the cabinet, which is opposite to the power module, is provided with a hollow area.

2. The uninterruptible power supply cabinet according to claim 1, characterized in that, The uninterruptible power supply cabinet also includes a switch. Along the height direction of the cabinet, the switch is located between the conductive bar and the bypass module. Along the depth direction of the cabinet, there is a gap between the switch and the back of the cabinet. Along the depth direction of the cabinet, the switch has a terminal on the side near the back of the cabinet, and the terminal is electrically connected to the conductive bar, the bypass module and the power module through wires or metal bars.

3. The uninterruptible power supply cabinet according to claim 2, characterized in that, The uninterruptible power supply cabinet also includes a partition. Along the height direction of the cabinet, the partition is located between the switch and the conductive bar. Along the depth direction of the cabinet, the size of the partition is smaller than the depth of the partition. One end of the partition is closer to the back of the cabinet than the terminal, and the other end of the partition is farther away from the back of the switch than the terminal.

4. The uninterruptible power supply cabinet according to claim 3, characterized in that, The conductive busbar includes a main input busbar, a main output busbar, a bypass input busbar, and a bypass output busbar. The main input busbar, the main output busbar, the bypass input busbar, and the bypass output busbar are arranged along the depth direction of the cabinet, and the bypass input busbar and the bypass output busbar are closer to the back of the cabinet than the main input busbar and the main output busbar. The main input and main output are both electrically connected to the power module, the bypass input and bypass output are both electrically connected to the bypass module, the main input and bypass input are both used to electrically connect to the power supply device, and the main output and bypass output are both used to electrically connect to the load.

5. The uninterruptible power supply cabinet according to any one of claims 2 to 4, characterized in that, The uninterruptible power supply cabinet also includes a flow guide plate, a portion of which is located between the bypass module and the back of the cabinet, and another portion of which is located between the switch and the back of the cabinet; At least two portions of the guide plate form an angle with each other, and the opening of the angle faces the terminal; or, the guide plate has an inner arc surface that faces the terminal.

6. The uninterruptible power supply cabinet according to claim 5, characterized in that, The flow guide plate can move relative to the cabinet along the height direction of the cabinet; The flow guide plate has a first position and a second position. In the first position, a portion of the flow guide plate is located between the bypass module and the back of the cabinet, and another portion of the flow guide plate is located between the switch and the back of the cabinet. In the second position, at least a portion of the baffle is located between the power module and the back of the cabinet.

7. The uninterruptible power supply cabinet according to any one of claims 2 to 6, characterized in that, The uninterruptible power supply cabinet also includes a control module and a temperature sensor. The temperature sensor and the bypass module are both electrically connected to the control module. The temperature sensor is used to detect the temperature of the busbar or the terminal. When the temperature is greater than or equal to a preset temperature threshold, the control module is used to control the bypass module to increase the rotation speed.

8. The uninterruptible power supply cabinet according to any one of claims 1 to 7, characterized in that, The cabinet also includes an air outlet, and at least a portion of the air outlet is not lower than the conductive bar along the height direction of the cabinet. The air outlet is located at the back of the cabinet; or, along the width of the cabinet, the air outlet is located on the left or right side of the cabinet.

9. The uninterruptible power supply cabinet according to claim 8, characterized in that, The uninterruptible power supply cabinet also includes a ventilation hood, which is fixed to the cabinet body and covers the air outlet. The ventilation hood includes multiple ventilation holes that are connected to the air outlet.

10. A data center, characterized in that, The data center includes a server and an uninterruptible power supply (UPS) cabinet according to any one of claims 1 to 9, the UPS cabinet being electrically connected to the server and used to supply power to the server.

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