CN209913481U

CN209913481U - Server power supply system and cable

Info

Publication number: CN209913481U
Application number: CN201921051558.7U
Authority: CN
Inventors: 郭兴宽; 王彦英; 夏耀宁
Original assignee: Delta Electronics Shanghai Co Ltd
Current assignee: Delta Electronics Shanghai Co Ltd
Priority date: 2019-07-08
Filing date: 2019-07-08
Publication date: 2020-01-07
Anticipated expiration: 2029-07-08

Abstract

The application provides a server power supply system, including first air switch, many cables and a plurality of power conversion components. The first end of the first air switch is used for receiving electric energy input into a power supply. The first end of each cable is electrically connected with the second end of the first air switch. The first end of each power conversion assembly is electrically connected with the second end of one cable, and the plurality of power conversion assemblies correspond to the plurality of cables one to one. The second end of each power conversion assembly is electrically connected with a server. Each cable is internally provided with a fuse, and the breaking speed of the fuse is greater than that of the first air switch. The application also provides a cable. According to the power supply line switching device, the fuse which is subjected to quick breaking is arranged in the cable, when the current flowing through the fuse is larger than the threshold current of the fuse, the fuse is heated to fuse, a link connected with the cable is quickly broken, and the reliability of a power supply line is improved.

Description

Server power supply system and cable

Technical Field

The application relates to the technical field of server power supply, in particular to a server power supply system and a cable.

Background

With the development of computer and other technologies, more and more servers are required. The server power supply system is used as a power source for the server to work, and the requirements of users on the stability and reliability of power supply are higher and higher.

In the existing data machine room, one air switch in a column head cabinet is connected with a multi-channel server power supply conversion assembly. When one server power conversion assembly fails, the air switch in the column head cabinet is often caused to trip, so that all the server power conversion assemblies connected with the air switch are disconnected from the input power supply, and further, all the servers electrically connected with the server power conversion assemblies are down. The simultaneous sudden power failure of multiple servers can result in a large number of users not being able to access the servers, and even a large amount of data being lost. Namely, the power supply circuit of the existing server power supply system is not sound, and the problem of poor reliability exists.

Therefore, how to develop a server power supply system that can improve the above-mentioned prior art is a urgent need.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a server power supply system and a cable for solving the problems of the existing server power supply system that the power supply line is not perfect and the reliability is poor.

According to an aspect of the present disclosure, there is provided a server power supply system including:

the first end of the first air switch is used for receiving electric energy input into a power supply;

a plurality of cables, a first end of each of the cables electrically connected to a second end of the first air switch; and

the first end of each power conversion assembly is electrically connected with the second end of one cable, the power conversion assemblies correspond to the cables one by one, and the second ends of the power conversion assemblies are electrically connected with a server;

and a fuse is arranged in each cable, and the breaking speed of the fuse is greater than that of the first air switch.

In one embodiment, the cable comprises:

a first connection part, a first end of which is electrically connected with a second end of the first air switch;

the fuse is arranged on the printed circuit board, and a first end of the fuse is electrically connected with a second end of the first connecting part through the printed circuit board; and

and the first end of the second connecting part is electrically connected with the second end of the fuse through the printed circuit board, and the second end of the second connecting part is electrically connected with the first end of the power supply conversion component.

In one embodiment, the cable further comprises a housing, the printed circuit board and the fuse being disposed within the housing;

the shell is oppositely provided with a first connecting hole and a second connecting hole, the second end of the first connecting part extends into the shell along the first connecting hole and is fixed and electrically connected with the printed circuit board through a first conductive bolt, and the first end of the second connecting part extends into the shell along the second connecting hole and is fixed and electrically connected with the printed circuit board through a second conductive bolt.

In one embodiment, the housing is provided with a first detection hole and a second detection hole, and the first detection hole and the second detection hole are used for detecting that the fuse is in a good state or in a blown state.

In one embodiment, the power conversion assembly comprises an input protection circuit, an input filter circuit, a power factor correction circuit, a direct current/direct current circuit, an output filter circuit and an output protection circuit which are electrically connected in sequence;

the input end of the input protection circuit is electrically connected with the second end of the cable, and the output end of the output protection circuit is electrically connected with the server.

According to another aspect of the present disclosure, there is provided a cable including:

the first end of the first connecting part is electrically connected with the first air switch;

a fuse, a first end of the fuse being electrically connected to a second end of the first connection portion; and

a first end of the second connecting part is electrically connected with a second end of the fuse, and a second end of the second connecting part is electrically connected with the power supply conversion component;

the breaking speed of the fuse is larger than that of the first air switch.

In one embodiment, the cable further comprises:

the fuse is arranged on the printed circuit board, the first end of the fuse is electrically connected with the second end of the first connecting portion through the printed circuit board, and the second end of the fuse is electrically connected with the first end of the second connecting portion through the printed circuit board.

In one embodiment, the cable further comprises:

the casing, printed circuit board with the fuse all set up in the casing, just the casing is provided with first connecting hole and second connecting hole relatively, the second end of first connecting portion is followed first connecting hole stretches into in the casing to through first conductive bolt with printed circuit board is fixed and the electricity is connected, the first end of second connecting portion is followed the second connecting hole stretches into in the casing, and through second conductive bolt with printed circuit board is fixed and the electricity is connected.

Compared with the prior art, according to the server power supply system and the server power supply cable, the fast-breaking fuse is arranged in the cable, when the current flowing through the fuse is larger than the threshold current, the fuse is heated to fuse, the link connected with the cable is quickly disconnected, the reliability of a power supply line is improved, and the problem that the server of the whole control switch link is shut down due to the fact that the first air switch is triggered to be disconnected due to the fact that the link server power supply conversion component is in failure is solved. Simultaneously this application will the fuse setting is in the cable, because of the fuse is small, have the advantage that the integrated effect is good.

Drawings

Fig. 1 is a block diagram of a server power supply system according to an embodiment of the present application;

fig. 2 is a first schematic structural diagram of a cable according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a cable according to an embodiment of the present application;

fig. 4 is a block diagram of a power conversion module according to another embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of a cable according to another embodiment of the present application.

10 server power supply system

100 first air switch

101 input power supply

200 cable

210 fuse

211 first detecting hole

212 second detection hole

220 first connecting part

221 first conductive bolt

230 printed circuit board

240 second connection part

241 second conductive bolt

250 shell

251 first connecting hole

252 second connecting hole

300 power supply conversion assembly

301 server

310 input protection circuit

320 input filter circuit

330 power factor correction circuit

340 DC/DC circuit

350 output filter circuit

360 output protection circuit

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and it is therefore not intended to be limited to the embodiments disclosed below.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, an embodiment of the present application provides a server power supply system 10, including: a first air switch 100, a plurality of cables 200, and a plurality of power conversion assemblies 300. The first end of the first air switch 100 is used for receiving power input from a power source 101. A first end of each of the cables 200 is electrically connected to a second end of the first air switch 100. The first end of each power conversion assembly 300 is electrically connected to the second end of one cable 200, and a plurality of power conversion assemblies 300 are in one-to-one correspondence with a plurality of cables 200. The second end of each power conversion module 300 is electrically connected to a server 301. A fuse 210 is disposed in each cable 200, and the breaking speed of the fuse 210 is greater than that of the first air switch 100.

In use, a first end of the first air switch 100 is electrically connected to the input power source 101. The first air switch 100 is configured to receive the power output by the input power source 101, and transmit the power to the server 301 through the cable 200 and the power conversion assembly 300 in sequence. In one embodiment, the number of power conversion assemblies 300 is the same as the number of cables 200, and there is a one-to-one correspondence therebetween.

The specific structure of the power conversion assembly 300 is not limited as long as it has a function of supplying the power transmitted by the cable 200 to the server 301. It is understood that the specific structure of the power conversion assembly 300 can be selected according to actual requirements. In one embodiment, the power conversion assembly 300 may include a filter, a fuse, a DC/DC converter.

It is understood that the manner in which the fuse 210 is installed in the cable 200 is not limited as long as the fuse 210 is electrically conductive and fixed in the cable 200. In one embodiment, the fuse 210 may be embedded within the cable 200 by an embedding manner. Because the fuse 210 has a small volume and is disposed in the cable 200, it has an advantage of good integration effect.

In one embodiment, the fuse 210 is a fast breaking fuse, and the breaking speed of the fuse 210 is greater than the breaking speed of the first air switch 100. In one embodiment, the fuse 210 may open before the first air switch 100 when excessive current is present in the supply line.

In an embodiment, the number of the fuses 210 disposed in the cable 200 is not limited, and may be one or more, and the specific number may be set according to actual requirements. By disposing the fuse 210 in the cable 200, when the current flowing through the fuse is larger than the threshold current, the fuse 210 heats and blows itself, and the link connected to the cable can be quickly disconnected. Therefore, the reliability of a power supply line is improved, and the problem that the server 301 of the whole control switch link is shut down due to the fact that the first air switch 100 is triggered to be switched off due to the fault of the power conversion component of the link server is solved.

In one embodiment, the second end of the first air switch 100 may be electrically connected to a plurality of links. Each link includes one of the cables 200, one of the power conversion assemblies 300, and one of the servers 301. When any one of the links fails (e.g., one of the power conversion components 300 in the link fails), the fuse 210 in the cable 200 can be quickly opened before the first air switch 100, so that the problem that the first air switch 100 is opened due to the link failure, and the server controlling the switched link is completely down, can be avoided.

In one embodiment, if the power conversion assembly 300 in any one link fails, the fuse 210 in the cable 200 in that link is opened. Meanwhile, the server 301 in the link can perform fault alarm, so that maintenance personnel can quickly repair the link.

In this embodiment, by disposing the fast-breaking fuse 210 in the cable 200, when the current flowing through the fuse 210 is greater than the threshold current, the fuse 210 generates heat to fuse itself, and the link connected to the cable is quickly disconnected, thereby increasing the reliability of the power supply line. The problem that the server 301 of the whole control switch link is shut down due to the fact that the first air switch 100 is triggered to be switched off due to the fault of the link server power conversion component is avoided. Meanwhile, in the embodiment, the fuse 210 is arranged in the cable 1200, and the fuse 210 has the advantage of good integration effect due to the small size.

Referring to fig. 2, in one embodiment, the cable 200 includes: a first connection portion 220, a printed circuit board 230, and a second connection portion 240. A first end of the first connection portion 220 is electrically connected to a second end of the first air switch 100. The fuse 210 is disposed on the printed circuit board 230, and a first end of the fuse 210 is electrically connected to a second end of the first connection portion 220 through the printed circuit board 230. A first end of the second connection portion 240 is electrically connected to a second end of the fuse 210 through the printed circuit board 230. A second end of the second connecting portion 240 is electrically connected to a first end of the power conversion assembly 300.

In one embodiment, the first connecting portion 220 may be composed of a conductive wire and an insulating sheath covering the conductive wire. In one embodiment, the second connecting portion 240 may also be composed of a conductive wire and an insulating sheath covering the conductive wire.

It is understood that the fuse 210 is not limited to be disposed on the printed circuit board 230, as long as the fuse 210 is electrically conductive and fixed on the printed circuit board 230. In one embodiment, the fuse 210 may be fixed to the printed circuit board 230 by soldering and electrically connected to an integrated circuit on the printed circuit board 230. In one embodiment, the size of the printed circuit board 230 may be selected according to the size of the fuse 210, so long as the fuse 210 is ensured to be conductive and fixed on the printed circuit board 230. The fuse 210 is disposed on the printed circuit board 230, so that the fuse 210 is more stable in use, and the safety of use is increased.

In one embodiment, the electrically connecting the first end of the fuse 210 with the second end of the first connection portion 220 through the printed circuit board 230 means: a first end of the fuse 210 is electrically connected to a second end of the first connection portion 220 through an integrated circuit on the printed circuit board 230. In one embodiment, the electrically connecting the first end of the second connection portion 240 with the second end of the fuse 210 through the printed circuit board 230 means: a first end of the second connection portion 240 is electrically connected to a second end of the fuse 210 through an integrated circuit on the printed circuit board 230.

In one embodiment, the cable 20 further comprises: a housing 250. The printed circuit board 230 and the fuse 210 are disposed in the housing 250. The housing 250 is oppositely provided with a first connection hole 251 and a second connection hole 252. The second end of the first connection portion 220 extends into the housing 250 along the first connection hole 251, and is fixed and electrically connected to the printed circuit board 230 by a first conductive bolt 221. A first end of the second connection portion 240 extends into the housing 250 along the second connection hole 252, and is fixed and electrically connected to the printed circuit board 230 by a second conductive bolt 241.

In one embodiment, the specific material of the housing 250 is not limited as long as the shape is ensured and the housing is insulated. In one embodiment, the housing 250 may be made of plastic. In one embodiment, the material of the housing 250 may also be rubber. In one embodiment, disposing both the printed circuit board 230 and the fuse 210 within the housing 250 protects the printed circuit board 230 and the fuse 210 from damage due to environmental factors. The environmental factors may be dust, impurities, etc.

In one embodiment, the first connection portion 220 may be fixed and electrically connected to the printed circuit board 230 by the first conductive bolt 221. In one embodiment, the first connecting portion 220 may also be directly fixed and electrically connected to the printed circuit board 230. Specifically, the wires in the first connection portion 220 may be fixed and electrically connected to the connection points of the printed circuit board 230 by winding. In one embodiment, the first connection hole 251 may have a square or circular shape.

In one embodiment, the second connection portion 240 may be fixed and electrically connected to the printed circuit board 230 by the second conductive bolt 241. In one embodiment, the second connecting portion 240 may also be directly fixed and electrically connected to the printed circuit board 230. Specifically, the wires in the second connecting portion 240 may be fixed and electrically connected to the connecting points of the printed circuit board 230 by winding. In one embodiment, the second connection hole 252 may be a square hole or a circular hole.

The contact point between the first connection portion 220 and the printed circuit board 230 and the contact point between the second connection portion 240 and the printed circuit board 230 are disposed in the housing 250, so that the contact points can be prevented from being damaged or falling off due to environmental factors, and the safety is improved. The environmental factor may be dust, impurities, foreign substances, or the like.

Referring to fig. 3, in one embodiment, the housing 250 is provided with a first sensing hole 211 and a second sensing hole 212. The first detecting hole 211 is aligned with the first conductive bolt 221. The second detecting hole 212 is aligned with the second conductive bolt 241. When the cable 20 has a fault or is suspected to have a fault, whether the fuse 210 in the housing 250 is damaged or not can be detected through the first detection hole 211 and the second detection hole 212, so that a fault point can be conveniently and quickly found, and the method has the advantage of simple and convenient operation.

In one embodiment, the alignment of the first detecting hole 211 and the first conductive bolt 221 is: the first conductive bolt 221 is directly accessible through the first sensing hole 211. In one embodiment, the alignment of the second detecting hole 212 and the second conductive bolt 241 refers to: the second conductive bolt 241 is directly accessible through the second inspection hole 212. In one embodiment, the shape of the first detection hole 211 and/or the second detection hole 212 may be circular or square, etc.

Referring to fig. 4, in one embodiment, the power conversion assembly 300 includes an input protection circuit 310, an input filter circuit 320, a power factor correction circuit 330, a dc/dc circuit 340, an output filter circuit 350, and an output protection circuit 360, which are electrically connected in sequence. The input of the input protection circuit 310 is electrically connected to the second end of the cable 200. The output terminal of the output protection circuit 360 is electrically connected to the server 301.

In one embodiment, the input protection circuit 310 may be a normal fuse or an air circuit breaker, and the breaking speed of the normal fuse or the air circuit breaker is lower than the breaking speed of the fuse 210. The input terminal of the power conversion component 300 is protected by the input protection circuit 310. In one embodiment, the input filter circuit 320 may be an EMI filter. Namely, the voltage or current inputted to the power conversion module 300 is filtered by the input filter circuit 320. In one embodiment, the pfc circuit 330 may employ a conventional pfc (power factor correction) circuit.

In one embodiment, the output filter circuit 350 may be an EMI filter. Namely, the voltage or current outputted from the power conversion component 300 is filtered by the output filter circuit 350. In one embodiment, the output protection circuit 360 may be a normal fuse or an air circuit breaker, and the breaking speed of the normal fuse or the air circuit breaker is lower than the breaking speed of the fuse 210. The output end of the power conversion module 300 is protected from being damaged by the output protection circuit 360.

Referring to fig. 5, an embodiment of the present application provides a cable 200, including: a first connection part 220, a fuse 210, and a second connection part 240. In use, a first end of the first connecting portion 220 is electrically connected to the first air switch 100. A first end of the fuse 210 is electrically connected to a second end of the first connection portion 220. A first end of the second connection part 240 is electrically connected to a second end of the fuse 210. When in use, the second end of the second connecting portion 240 is electrically connected to the power conversion assembly 300. Wherein, the breaking speed of the fuse 210 is greater than that of the first air switch 100.

In one embodiment, the first air switch 100 transmits the power received from the front end to the first connection part 220. In one embodiment, the specific structures of the first connection portion 220, the second connection portion 240 and the power conversion assembly 300 may adopt the structures described in the above embodiments, and the description thereof will not be repeated.

In one embodiment, the fuse 210 is a fast breaking fuse, and the breaking speed of the fuse 210 is greater than the breaking speed of the first air switch 100. In one embodiment, the breaking capacity of the fuse 210 may be the same as that of the first air switch 100. That is, if the fuse 210 is opened when a current flowing through the fuse is 100A, the trigger current of the first air switch 100 is also 100A. However, at a current of 100A, the opening speed of the fuse 210 is greater than that of the first air switch 100.

Therefore, when the current flowing through the fuse 210 is larger than the threshold current, the fuse 210 generates heat to blow itself, and the link connected with the cable can be quickly disconnected. Therefore, the reliability of a power supply line is improved, and the problem that the server 301 of the whole control switch link is shut down due to the fact that the first air switch 100 is triggered to be switched off due to the fault of the power conversion component of the link server is solved.

The cable 200 of the present embodiment is not only applied to the server power supply system 10, but also applied to other application scenarios, such as lighting systems. By arranging the fast-breaking fuse 210 in the cable 200, when the current flowing through the fuse 210 is greater than the threshold current, the fuse 210 generates heat to fuse itself, and the link connected with the cable is quickly broken, so that the reliability of a power supply line is improved. Meanwhile, in the embodiment, the fuse 210 is arranged in the cable 1200, and the fuse 210 has the advantage of good integration effect due to the small size.

In one embodiment, the cable 200 further comprises: a printed circuit board 230. The fuse 210 is disposed on the printed circuit board 230, and a first end of the fuse 210 is electrically connected to a second end of the first connection portion 220 through the printed circuit board 230. A second end of the fuse 210 is electrically connected to a first end of the second connection portion 240 through the printed circuit board 230. The fuse 210 may be disposed on the printed circuit board 230 in the manner described in the above embodiments, and the description thereof will not be repeated.

In one embodiment, the cable 200 further comprises: a housing 250. The printed circuit board 230 and the fuse 210 are disposed in the housing 250. The housing 250 is oppositely provided with a first connection hole 251 and a second connection hole 252. The second end of the first connection portion 220 extends into the housing 250 along the first connection hole 251, and is fixed and electrically connected to the printed circuit board 230 by a first conductive bolt 221. A first end of the second connection portion 240 extends into the housing 250 along the second connection hole 252, and is fixed and electrically connected to the printed circuit board 230 by a second conductive bolt 241.

In one embodiment, the specific material of the housing 250, the shape of the first connection hole 251, and the shape of the second connection hole 252 may be the same as those of the previous embodiments, and will not be described again.

In one embodiment, the housing 250 is provided with a first detection hole 211 and a second detection hole 212 for detecting that the fuse is in a good or blown state. Specifically, in some embodiments, the first sensing hole 211 is aligned with the first end of the fuse, or an electrical conductor such as a first conductive bolt electrically connected to the first end of the fuse. The second sensing hole 212 is aligned with the second end of the fuse, or with a conductive body such as a second conductive bolt electrically connected to the second end of the fuse. Thus, the detection probe can extend into the shell and contact the first end and the second end of the fuse respectively or contact an electric conductor electrically connected with the first end and the second end of the fuse; and detecting that the fuse is in good condition or blown.

In one embodiment, the power conversion assembly 300 includes an input protection circuit 310, an input filter circuit 320, a power factor correction circuit 330, a dc/dc circuit 340, an output filter circuit 350, and an output protection circuit 360, which are electrically connected in sequence. The input of the input protection circuit 310 is electrically connected to the second end of the cable 200. The output terminal of the output protection circuit 360 is electrically connected to the server 301.

In one embodiment, the specific structures of the input protection circuit 310, the input filter circuit 320, the power factor correction circuit 330, the dc/dc circuit 340, the output filter circuit 350, and the output protection circuit 360 can all adopt the same manner as the above embodiments, and the description thereof is not repeated here.

In summary, according to the present application, the fuse 210 that is subjected to fast breaking is disposed in the cable 200, and when the current flowing through the fuse 210 is greater than the threshold current, the fuse 210 generates heat to fuse itself, so as to quickly break the link connected to the cable, thereby increasing the reliability of the power supply line. The problem that the server 301 of the whole control switch link is shut down due to the fact that the first air switch 100 is triggered to be switched off due to the fault of the link server power conversion component is avoided. Meanwhile, the fuse 210 is arranged in the cable 1200, and the fuse 210 is small in size and has the advantage of good integration effect.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A server power supply system, comprising:

2. The server power supply system of claim 1 wherein the cable comprises:

3. The server power supply system of claim 2 wherein the cable further comprises a housing, the printed circuit board and the fuse being disposed within the housing;

4. The server power supply system according to claim 3, wherein the housing is provided with a first detection hole and a second detection hole for detecting that the fuse is in good condition or blown.

5. The server power supply system according to claim 1, wherein the power conversion module includes an input protection circuit, an input filter circuit, a power factor correction circuit, a dc/dc circuit, an output filter circuit, and an output protection circuit, which are electrically connected in this order;

6. A cable, comprising:

the breaking speed of the fuse is larger than that of the first air switch.

7. The cable of claim 6, further comprising:

8. The cable of claim 7, further comprising:

9. The cable of claim 8, wherein the housing is provided with a first detection hole and a second detection hole for detecting whether the fuse is intact or blown.

10. The cable of claim 6, wherein the power conversion assembly includes an input protection circuit, an input filter circuit, a power factor correction circuit, a dc/dc circuit, an output filter circuit, and an output protection circuit electrically connected in sequence;