CN213185518U

CN213185518U - Whole machine cabinet

Info

Publication number: CN213185518U
Application number: CN202022599794.1U
Authority: CN
Inventors: 董哲; 苑梦雄; 王鹏冲
Original assignee: Beijing Baidu Netcom Science and Technology Co Ltd
Current assignee: Baidu Online Network Technology Beijing Co Ltd; Beijing Baidu Netcom Science and Technology Co Ltd
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-05-11
Anticipated expiration: 2030-11-11

Abstract

The utility model discloses a complete machine cabinet relates to server technology, can be used to fields such as cloud computing and cloud service. This complete machine cabinet includes: the power supply inlet wire comprises two alternating current inlet wires, and the phases of alternating currents input by the two alternating current inlet wires are opposite; the two paths of alternating current inlet wires are connected with the alternating current input end of the power supply, and only one path of alternating current inlet wire inputs alternating current to the power supply at the same time so as to adjust the phase of the input alternating current; the power supply supplies power to the servers in the whole cabinet by using the input alternating current. Adopt the opposite two-way interchange inlet wire of phase place, the phase place at single-phase rack place is selected in a flexible way, reduces the three-phase unbalance degree, improves the power supply reliability.

Description

Whole machine cabinet

Technical Field

The utility model relates to a data center technical field, concretely relates to server technical field especially relates to whole rack.

Background

Currently, a Power Supply Unit (PSU) is used in a cabinet to Supply Power to a server. At the power input end of the server, the output characteristic of the power supply is only relied on to guarantee the power supply quality. However, the server is directly damaged due to the failure of the power supply, and such a phenomenon frequently occurs in the machine room. And, the complete machine cabinet is single-phase load, and along with the increase of the quantity of the online servers, the load difference between the cabinets can lead to the unbalanced three-phase problem of the transformer to be outstanding. Currently, how to control a cabinet to improve the power supply quality of a server needs to be solved.

SUMMERY OF THE UTILITY MODEL

The present disclosure presents a complete cabinet.

The utility model provides a complete machine cabinet, include: the power supply inlet wire comprises two alternating current inlet wires, and the phases of alternating currents input by the two alternating current inlet wires are opposite; the two paths of alternating current inlet wires are connected with the alternating current input end of the power supply, and only one path of alternating current inlet wire inputs alternating current to the power supply at the same time so as to adjust the phase of the input alternating current; the power supply supplies power to the servers in the whole cabinet by using the input alternating current.

According to the whole cabinet, the two paths of alternating current inlet wires are connected with the alternating current input end of the power supply, and only one path of alternating current inlet wire inputs alternating current to the power supply at the same time so as to adjust the phase of the alternating current input to the server in the whole cabinet by the power supply. Adopt the opposite two-way interchange inlet wire of phase place, the phase place at single-phase rack place is selected in a flexible way, reduces the three-phase unbalance degree, improves the power supply reliability.

It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present disclosure, nor do they limit the scope of the present disclosure. Other features of the present disclosure will become apparent from the following description.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings. The drawings are included to provide a better understanding of the present solution and are not intended to limit the present application. Wherein:

fig. 1 is a schematic view of an entire cabinet according to the present disclosure;

fig. 2 is yet another schematic illustration of a complete cabinet according to the present disclosure;

fig. 3 is another schematic view of a complete cabinet according to the present disclosure;

FIG. 4 is a power topology of an entire cabinet;

FIG. 5 is a schematic diagram of an interface of a power supply;

FIG. 6 is a schematic view of an interface of a cabinet management unit;

FIG. 7 is a schematic diagram of an interface of a low voltage power quality control unit;

Detailed Description

The following description of the exemplary embodiments of the present application, taken in conjunction with the accompanying drawings, includes various details of the embodiments of the application for the understanding of the same, which are to be considered exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present application. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1, a schematic diagram of a complete cabinet according to the present disclosure is shown. As shown in fig. 1, the complete cabinet in this embodiment may include a power inlet and a power supply 101, where the power inlet includes two

ac inlet lines

102 and 103. The phases of the alternating currents input by the two alternating

current inlet wires

102 and 103 are opposite. For example, the phase of the ac power input from the ac inlet line 102 is a phase/B phase, and the phase of the ac power input from the ac inlet line 103 is B phase/C phase.

The two

ac inlet lines

102, 103 are connected to the ac input of the power supply 101. Since the entire cabinet is a single-phase load, only one of the two ac

incoming lines

102, 103 inputs ac to the power supply 101 at the same time. The power supply 101 supplies power to the servers in the entire cabinet by using the input alternating current. With the increase of the number of servers on the line in the whole cabinet, the load difference between the cabinets can cause the three-phase imbalance of the transformer. At this time, by switching the ac inlet line for inputting ac power to the power supply 101, the phase of the input ac power can be adjusted while ensuring normal operation of the server. Therefore, three-phase imbalance is flexibly adjusted, the neutral current of the transformer is reduced, and the power supply reliability is improved. The power supply accidents caused by electric energy loss, neutral line burnout and the like are avoided.

In some optional implementations of the present embodiment, the two

ac inlet lines

102, 103 may be connected to the ac input terminal of the power supply through the air switch. The flexible disconnection of the air switch can control the current operation phase of the whole cabinet. Specifically, the rear ends of the two ac

incoming lines

102 and 103 are connected to an ac circuit breaker. The two alternating current circuit breakers are controlled remotely, and remote group control can be realized when the number of the cabinets is large. There is an on-off interlock between the two ac breakers, and only one ac breaker is closed at a time to power the power supply 101. Not only improves the flexibility of phase adjustment, but also can replace the functions of a head cabinet and an Automatic Transfer Switching (ATS) appliance, reduces the volume of the whole cabinet and further saves the space of a rack.

With continued reference to fig. 2, there is shown yet another schematic view of a complete cabinet according to the present disclosure. As shown in fig. 2, the complete cabinet in this embodiment may include a power inlet, a power supply 201, and a Rack Management Controller (RMC) 205. The power inlet line comprises two

AC inlet lines

202 and 203 and one DC inlet line 204. The phases of the alternating currents input by the two alternating

current inlet wires

202 and 203 are opposite. For example, the phase of the ac power input from ac inlet 202 is a phase/B phase, and the phase of the ac power input from ac inlet 203 is B phase/C phase.

The two

ac inlet lines

202, 203 are connected to the ac input of the power supply 201. Since the entire cabinet is a single-phase load, only one of the two ac

incoming lines

202, 203 inputs ac power to the power supply 201 at the same time. The power supply 201 supplies power to the servers in the entire cabinet by using the input alternating current. With the increase of the number of servers on the line in the whole cabinet, the load difference between the cabinets can cause the three-phase imbalance of the transformer. At this time, by switching the ac inlet line to which the ac power is input to the power supply 201, the phase of the input ac power can be adjusted. Therefore, three-phase imbalance is flexibly adjusted, the neutral current of the transformer is reduced, and the power supply reliability is improved. The power supply accidents caused by electric energy loss, neutral line burnout and the like are avoided.

One direct current incoming line 204 is connected to a direct current input terminal of the power supply 201, and inputs direct current to the power supply 201. The power supply 201 supplies power to the servers in the entire cabinet by using the input direct current.

However, in practical applications, once the power supply 201 fails, the voltage or current at the dc output of the power supply 201 may suddenly change, which may damage or even burn out the servers in the entire cabinet, resulting in a large loss. Therefore, the power supply 201 in this embodiment may add an automatic exit mechanism, implement fast fault isolation, and reduce the fault range. Specifically, the dc output terminal of the power supply 201 is connected to a dc relay. If the power supply 201 operates normally, the dc relay is closed to supply power to the power supply 201 normally. If the power supply 201 operates abnormally, the dc relay is turned off to stop supplying power to the power supply 201, thereby preventing the server from being damaged due to sudden change of voltage and current of the dc power input from the power supply 201 to the server in the whole cabinet.

In addition, the direct current output end of the power supply 201 is connected with the direct current relay and is controlled by the power supply 201 and the cabinet management unit 205 together, manual and remote control on-off is supported, and then the control mode of the direct current relay is enriched. The human-computer interaction position of the power supply 201 is provided with a manual control button, and when the operation and maintenance personnel find that the state of the power supply 201 is abnormal, the manual control of the direct current relay can be realized through the manual control button. The cabinet management unit 205 is a communication control unit, and when the cabinet management unit 205 detects that the power supply 201 is abnormal, the cabinet management unit can automatically control the dc relay. Typically, the enclosure management unit 205 has a higher priority of control than the power supply 201.

In practical applications, there are usually situations where multiple power supplies 201 are operated in parallel. Taking n power supplies 201 operating in parallel, the operating state of the internal modules of the power supplies 201 is synchronized with the state of the dc relay switch. When the dc relay switch is turned off, all the power switching devices of the power supply 201 are turned off. When the dc relay switch is closed, the power supply 201 operates normally. Furthermore, n power supplies 201 have interlock logic therebetween. That is, n power supplies 201 are operated in parallel, and only m power supplies 201 are in an off state at the same time. Wherein m < n, and m and n are positive integers. For example, a whole cabinet has 6 power supplies 201, and the ratio is an N +1 redundancy configuration, and at this time, if a fault occurs, the 6 power supplies 201 can only have 1 power supply 201 to exit from operation. Wherein N is a positive integer.

As can be seen from fig. 2, compared with the embodiment corresponding to fig. 1, the complete cabinet in this embodiment has an automatic exit mechanism for the power supply. The direct current relay is connected to the direct current output end of the power supply, and when the power supply operates abnormally, the direct current relay is disconnected to stop supplying power to the power supply, so that voltage and current of direct current input from the power supply to a server in the whole cabinet are prevented from suddenly changing, and the server is prevented from being damaged.

Continuing to refer to fig. 3, another schematic view of a complete cabinet according to the present disclosure is shown. As shown in fig. 3, the complete cabinet in this embodiment may include a Power inlet, a Power supply 301, a cabinet management unit 305, and a Low-Voltage Power Quality Controller (LPQC) 306. The power inlet wire comprises two

AC inlet wires

302 and 303 and one DC inlet wire 304. The phases of the alternating currents input by the two alternating

current inlet wires

302 and 303 are opposite. For example, the phase of the ac power input from the ac inlet 302 is a phase/B phase, and the phase of the ac power input from the ac inlet 303 is B phase/C phase.

The two

ac inlet lines

302, 303 are connected to the ac input of the power supply 301. Since the entire cabinet is a single-phase load, only one of the two ac

incoming lines

302, 303 inputs ac power to the power supply 301 at the same time. The power supply 301 supplies power to the servers in the entire cabinet by using the input alternating current. With the increase of the number of servers on the line in the whole cabinet, the load difference between the cabinets can cause the three-phase imbalance of the transformer. At this time, by switching the ac inlet line to which the ac power is input to the power supply 301, the phase of the input ac power can be adjusted. Therefore, three-phase imbalance is flexibly adjusted, the neutral current of the transformer is reduced, and the power supply reliability is improved. The power supply accidents caused by electric energy loss, neutral line burnout and the like are avoided.

One direct current inlet 304 is connected to a direct current input terminal of the power supply 301, and inputs direct current to the power supply 301. The power supply 301 supplies power to the servers in the entire cabinet by using the input direct current.

A low-voltage power quality control unit 306 is added at the central position of the whole cabinet. The low-voltage power quality control unit 306 is connected in parallel with the power supply 301, and can be used for power quality control of alternating current and direct current. The low-voltage power quality control unit 306 can realize microsecond level power quality control, and reduce power impact of the server. The low-voltage power quality control unit 306 is configured with a DC/DC module and an AC/DC module, so that the low-voltage power quality control unit 306 has both AC and DC power quality management capabilities.

In addition, the low voltage power quality control unit 306 is also configured with a lithium battery having a capacity less than a preset value. The lithium battery can be used for rapid charge and discharge, and disturbance of a direct current end or an alternating current end is eliminated. Absorbing electric energy when the power is suddenly increased, and releasing the electric energy when the power is suddenly reduced. And in addition, when the device works normally, the power harmonic waves at the AC side and the DC side can be effectively treated.

Therefore, all functions are sunk to the cabinet, mutual coupling among the cabinets is eliminated, and quick deployment of the machine room is realized. The whole cabinet of this embodiment collects power supply and electric energy quality control as an organic whole, and when newly-built data center put on the shelf operation, the staff can ignore wiring phase place and commercial power electric energy quality problem, and the server is put on the shelf fast, shortens data center construction and configuration cycle, realizes that the computer lab deploys fast. It is worth noting that the server can operate reliably for a long time under the situation of direct supply of the commercial power.

As can be seen from fig. 3, compared with the embodiment corresponding to fig. 2, the power quality control of the whole cabinet in this embodiment is increased. The low-voltage power quality control unit and the power supply are connected in parallel for operation and can be used for power quality control of alternating current and direct current.

The whole cabinet integrates power quality control and server power supply, has the capability of eliminating dangerous faults and improves the reliability of server power supply in all directions. Because the quality of electric energy sinks to the cabinet level, the connection of the whole cabinet with the commercial power is safer, and when a server is put on shelf, the phase of the cabinet does not need to be considered, so that the time for putting on shelf of the server is greatly shortened, and the rapid deployment is realized. Because the cabinet side comprises two paths of alternating current power supply inputs, the connection of the other path of alternating current power supply provides standby guarantee for the power supply of the server. When the incoming line of the same way cuts off the power supply, can switch to another way by remote control, reduce server outage risk. The design can replace a column head cabinet with the function of automatically converting the switch electric appliance by matching with a small bus bar structure, and the space of a rack is saved.

For ease of understanding, fig. 4 shows a power topology of the entire cabinet. As shown in fig. 4, ac power of a phase/B phase is input to n parallel power supplies (PSU 1 … PSU n) through corresponding ac inlet lines. The rear ends of the two AC inlet wires are connected with an AC circuit breaker. The two ac breakers are remotely controlled and only one ac breaker is closed at a time to power the power supply. The direct current is input to n parallel power supplies through corresponding direct current inlet wires. The direct current output end of the power supply is connected with a direct current relay, the direct current relay is controlled by the power supply and a cabinet management unit (RMC) together, and the direct current relay is disconnected to automatically quit the power supply when the power supply is abnormal. The power supply supplies power to the servers in the whole cabinet by using the input alternating current and the direct current. The low-voltage power quality control unit (LPQC) and the power supply are operated in parallel and can be used for controlling the power quality of alternating current and direct current. The low-voltage power quality control unit is provided with a DC/DC module and an AC/DC module, so that the low-voltage power quality control unit has the capacity of treating the AC power quality and the DC power quality at the same time. In addition, the low-voltage power quality control unit is also provided with an ultra-small-capacity lithium battery. The lithium battery can be used for rapid charge and discharge, and disturbance of a direct current end or an alternating current end is eliminated.

Fig. 5 shows a schematic diagram of an interface of a power supply. As shown in fig. 5, the dc relay is controlled by the power supply, supporting manual on/off control. The interface of the power supply is provided with a direct current relay control position button. If the button is closed, the power supply is normally powered. If the button is off, the power supply is stopped. In addition, the interface of the power supply is also provided with an indicator light for inputting the power state, outputting the power state and module fault state.

Fig. 6 shows a schematic diagram of an interface of a cabinet management unit. As shown in fig. 6, the dc relay is controlled by the cabinet management unit to support remote on-off control. The interface of the power supply is provided with a power supply state indicator light for indicating whether the power supply operates normally. In addition, the interface of the power supply is also provided with indicator lights with normal communication, normal power supply and module fault state.

Fig. 7 shows a schematic diagram of the interface of the low voltage power quality control unit. As shown in fig. 7, a power quality governing control bit button is arranged on the interface of the low-voltage power quality control unit. If the button is closed, the power supply is normally powered. And the low-voltage power quality control unit is controlled to operate and stop by opening and closing the button. In addition, an alternating current power supply, a direct current power supply and an indicator lamp of a module fault state are also arranged on an interface of the low-voltage power quality control unit.

The server in this embodiment may be a server of a distributed system, or a server that incorporates a blockchain, and the server may be a cloud server, or an intelligent cloud server or an intelligent cloud host with an artificial intelligence technology.

The above-described embodiments should not be construed as limiting the scope of the present application. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A complete machine cabinet comprises: the power supply inlet wire comprises two alternating current inlet wires, and the phases of alternating currents input by the two alternating current inlet wires are opposite;

the two paths of alternating current inlet wires are connected with the alternating current input end of the power supply, and only one path of alternating current inlet wire inputs alternating current to the power supply at the same time so as to adjust the phase of the input alternating current;

the power supply supplies power to the servers in the whole cabinet by using input alternating current.

2. The complete cabinet according to claim 1, wherein the two ac incoming lines are connected at their rear ends to ac circuit breakers, and the two ac circuit breakers are switched on and off in an interlocking manner, and only one ac circuit breaker is closed at the same time to supply power to the power supply.

3. The complete cabinet of claim 1 or 2, wherein the power inlet further comprises a direct current inlet;

the direct current inlet wire is connected with the direct current input end of the power supply and inputs direct current to the power supply;

the power supply supplies power to the servers in the whole cabinet by using the input direct current.

4. The complete cabinet of claim 3, wherein the complete cabinet further comprises a cabinet management unit, the dc output terminal of the power supply is connected to a dc relay, if the power supply operates normally, the dc relay is closed, and if the power supply operates abnormally, the dc relay is opened.

5. The cabinet as claimed in claim 4, wherein the DC relay is commonly controlled by the power supply and the cabinet management unit.

6. The cabinet as claimed in claim 5, wherein a manual control button is provided at a human-computer interaction position of the power supply, the cabinet management unit is a communication control, and the control priority of the cabinet management unit is higher than that of the power supply.

7. The cabinet as claimed in claim 6, wherein if n power supplies are operated in parallel, the operating status of the internal modules of the power supplies is synchronized with the dc relay switch status, and there is interlock logic between n power supplies, and only m power supplies are in off status at the same time, where m < n, and m and n are positive integers.

8. The complete cabinet as claimed in claim 1 or 2, wherein the complete cabinet further comprises a low voltage power quality control unit configured with a DC/DC module and an AC/DC module, the low voltage power quality control unit operating in parallel with the power supply for power quality management of alternating current and direct current.

9. The complete cabinet according to claim 8, wherein the low voltage power quality control unit is further configured with a lithium battery with a capacity less than a preset value for rapid charging and discharging, absorbing power in case of sudden power increase and releasing power in case of sudden power decrease.