CN200950554Y

CN200950554Y - Electrical supply equipment

Info

Publication number: CN200950554Y
Application number: CN 200620132056
Authority: CN
Inventors: 李昌海; 陈勇; 粟晖
Original assignee: Industrial and Commercial Bank of China Ltd ICBC
Current assignee: Industrial and Commercial Bank of China Ltd ICBC
Priority date: 2006-08-29
Filing date: 2006-08-29
Publication date: 2007-09-19
Anticipated expiration: 2016-08-29

Abstract

The utility model discloses a power supply device which comprises a switch element, a first uninterruptible power supply which has a first input end connected with a first outer power supply, a second input end; and a second uninterruptible power supply which has a third input end connected with a second outer power supply, a fourth input end and a second output end. When the switch element is in a first state, the second output end is connected with the second input end while the first output end is connected with the load and the third outer power supply is connected with the fourth input end; when the switch element is in a second state, the first output end is connected with the fourth input end while the second output end is connected with the load and the third outer power supply is connected with the second input end. The utility model solves the technical problem that the main input switch of the active UPS in the main electricity distribution cabinet at the front of UPS has to be cut off and altered in a complex way due to adopting two transfer ways-interruptible power supply and uninterruptible power supply which can transfer at regular intervals from the main machine to the subordinate machine or the opposite transfer.

Description

Power supply unit

Technical field

The utility model relates to series connection heat and is equipped with formula uninterrupted power supply ups system, is specifically related to a kind of power supply unit that can realize the online switching of principal and subordinate's machine.

Background technology

In the application of uninterrupted power supply (ups) Unity,, often require the redundant connection of several uninterrupted power supplys in order to improve operational reliability.The redundant connected mode of uninterrupted power supply mainly contains series connection Hot Spare and redundant parallel dual mode.Be equipped with in the formula uninterruptible power system in series connection heat, the uninterrupted power supply operational mode adopts principal and subordinate's heat to be equipped with mode, because the uninterrupted power supply as main frame is in run with load for a long time, uninterrupted power supply as standby host then is in Light Condition for a long time, cause the components and parts life-span of two uninterrupted power supplys seriously inconsistent, the utilance of device resource is not high yet.

In the prior art; the hot active and standby machine role of formula uninterruptible power system is fully switched if will connect; can only be in uninterrupted power supply front end civil power power distribution cabinet the civil power input switch of active and standby uninterrupted power supply be carried out the complicated power failure operation of relocating; the uninterrupted power supply machine of must delaying fully just can carry out this operation, and load is not protected fully in operating process.

As shown in Figure 5, Chinese patent application 96204740.6 has disclosed a kind of UPS machine series-fed device, be included as the main electricity consumption UPS1 of main power consumption equipment 4 power supplies and be the less important electricity consumption UPS2 of less important power consumption equipment 5 power supplies, this main electricity consumption UPS1 and less important electricity consumption UPS2 are connected in series mutually.Above-mentioned electric supply installation also comprises the bypass loop that can connect with main power consumption equipment 4.In addition, utilize unbroken diverter switch 3, when described main electricity consumption UPS1 broke down or maintains, described change over switch 3 can be connected in described bypass loop with described less important electricity consumption UPS2, so that described main power consumption equipment 4 is powered.Automatic change-over 7 automatically switches to bypass loop.

Equally, because the uninterrupted power supply operational mode of above-mentioned electric supply installation adopts principal and subordinate's heat to be equipped with mode, cause the components and parts life-span of two uninterrupted power supplys seriously inconsistent, the problem that the utilance of device resource is low.

Summary of the invention

The utility model purpose is not influence under the electric situation of uninterrupted power supply, with the main frame in the hot formula uninterruptible power system fully of series connection and the role exchange of standby host, to reach utilization rate of equipment and installations that improves uninterruptible power system and the purpose that strengthens the uninterruptible power system reliability.For this reason, provide a kind of power supply unit that is used for to realize the role exchange of main frame and standby host.

Aspect one of the present utility model, a kind of power supply unit is provided, comprising: switch element, first uninterrupted power supply has first input end, second input and first output, and described first input end connects first external power source; And second uninterrupted power supply, having the 3rd input, four-input terminal and second output, described the 3rd input connects second external power source; Wherein, described switch element is connected to second input with second output under first state, first output is connected to load, and the 3rd external power source is connected to four-input terminal; And described switch element is connected to four-input terminal with first output under second state, second output is connected to load, and the 3rd external power source is connected to second input.

In addition, described power supply unit also comprises: the 4th switch is connected between described the 3rd external power source and the load.

In addition, described switch element comprises first switch, second switch and the 3rd switch.

In addition, described first switch, second switch, the 3rd switch and the 4th switch constitute by single-pole double-throw switch (SPDT).

In addition, described switch element is made of triac device.

In addition, described first switch, second switch, the 3rd switch and the 4th switch constitute by single-pole switch or double-pole switch.

Good effect of the present utility model: move more safely and effectively for guaranteeing two UPS, the utility model can be implemented in the switching that the heat of regularly connecting under the situation that interrupt load is not powered is equipped with formula ups system principal and subordinate machine role.The utility model adopts and interrupts and two kinds of switching modes of uninterrupted power supply, and whole handoff procedure is comparatively simple, adopts the technical solution of the utility model can get final product complete operation not by other instrument by hand.Adopt the technical solution of the utility model, solved background technology in UPS front end civil power power distribution cabinet, the civil power input switch of active and standby UPS is carried out the relocate technical problem of operation of complicated power failure.The utility model will produce active influence to the management maintenance pattern and the technological means of computer room ups system, and utilization rate of equipment and installations and system's operational reliability that effective raising series connection heat is equipped with the formula ups system play a significant role.The series connection heat that the utility model can be widely used in every profession and trade computer rooms such as finance, telecommunications is equipped with in the formula ups system.

Description of drawings

From the detailed description below in conjunction with accompanying drawing, above-mentioned feature and advantage of the present invention will be more obvious, wherein

Fig. 1 shows the formation schematic diagram according to the power supply unit of the utility model first execution mode;

Fig. 2 shows the equivalent circuit diagram of power supply unit under each switch and situation that the contact of a side is connected as shown in Figure 1;

Fig. 3 shows the equivalent circuit diagram of power supply unit under each switch and situation that the contact of opposite side is connected as shown in Figure 1;

Fig. 4 is the formation schematic diagram according to the power supply unit of the utility model second execution mode; And

Fig. 5 is the UPS two-shipper series-fed schematic representation of apparatus of prior art.

Embodiment

Below, describe preferred implementation of the present utility model with reference to the accompanying drawings in detail.In the accompanying drawings, though be shown in the different accompanying drawings, identical Reference numeral is used to represent identical or similar assembly.For clarity and conciseness, be included in here known function and the detailed description of structure will be omitted, otherwise they will make theme of the present utility model unclear.

[first execution mode]

Fig. 1 shows the formation schematic diagram according to the power supply unit of the utility model first execution mode.As shown in Figure 1, the power supply unit according to first execution mode comprises: first K switch 1, second switch K2, the 3rd K switch 3, the first main power sources 1, the second main power source 2, bypass supply 3.Here, first K switch 1, second switch K2 and the 3rd K switch 3 can be realized by single triac device, also can be realized by three single-pole double-throw switch (SPDT)s, also can be realized by single-pole double-throw switch (SPDT) and double-point double-throw switch.

The first uninterrupted power supply UPS1 has two power input S13 and S12, and an output S11.A power input S13 is connected with first main power source 1, and another power input S12 is connected with other stand-by power supply, to prevent that power supply breaks down and causes shutting down in the course of the work.That is to say, generally provide civil power by first main power source 1 to the first uninterrupted power supply UPS1, when first main power source 1 broke down, the first uninterrupted power supply UPS1 switched to stand-by power supply with its power supply automatically.

Equally, the second uninterrupted power supply UPS2 has two power input S23 and S22, and an output S21.A power input S23 is connected with second main power source 2, and another power input S22 is connected with other stand-by power supply, breaks down and causes shutting down to prevent in the course of the work disconnected member.That is to say, generally provide civil power by second main power source 2 to the second uninterrupted power supply UPS2, when second main power source 2 broke down, the second uninterrupted power supply UPS2 switched to stand-by power supply with its power supply automatically.

First K switch 1 has an input 11 and two

outputs

12 and 13, according to user's action or automatically input 11 and two outputs 12 are connected with one of 13.Equally, second switch K2 has an input 21 and two

outputs

22 and 23, according to user's action or automatically input 21 and two outputs 22 are connected with one of 23.The 3rd switch has an input 31 and two

outputs

32 and 33, according to user's action or automatically input 31 and two outputs 32 are connected with one of 33.

In addition, as shown in Figure 1, an output 12 of first K switch 1 has been connected to the second source input S22 of the second uninterrupted power supply UPS2, and another output 13 of first K switch 1 is connected to the output 22 of second switch K2.Another output 23 of second switch K2 is connected to an output 32 of the 3rd K switch 3, and second output 33 of the 3rd K switch 3 has been connected to an output 12 of first K switch 1, just has been connected to the second source input S22 of the second uninterrupted power supply UPS2.In addition, another output 23 of second switch K2 has been connected to another power input S12 of the first uninterrupted power supply UPS1.The input 31 of the 3rd K switch 3 is connected with stand-by power supply 3.Node between another output 13 of first switch and the output of second switch K2 has been connected to load 4, is used for to load 4 power supplies.

Like this, when first K switch 1, second switch K2 and the 3rd K switch 3 cutter throw to the right, just input 11 is connected with output 13, input 21 is connected with output 23, and input 31 is when being connected with output 33, two uninterrupted power supply polyphones connect, directly power to the load by the first uninterrupted power supply UPS1, and the output S21 of the second uninterrupted power supply UPS2 is connected to the second source input S12 of the first uninterrupted power supply UPS1, as the stand-by power supply of the first uninterrupted power supply UPS1, as shown in Figure 2.

When first K switch 1, second switch K2 and the 3rd K switch 3 cutter throw to the left, just input 11 is connected with output 12, input 21 is connected with output 22, and input 31 is when being connected with output 32, two uninterrupted power supply polyphones connect, directly power to the load by the second uninterrupted power supply UPS2, and the output S11 of the first uninterrupted power supply UPS1 is connected to the second source input S22 of second uninterrupted power supply, as the stand-by power supply of the first uninterrupted power supply UPS1, as shown in Figure 3.

As mentioned above, which uninterrupted power supply UPS is first embodiment of the invention can determine and be used to directly power to the load along with user's wish.Certainly, also can automatically, for example one month, between two uninterrupted power supplys, switch every preset time.

[second execution mode]

Described above is that the mode of interruption of power supply is switched between different uninterrupted power supply UPS.But the present invention also can switched between uninterrupted power supply UPS1 and UPS2 under the situation of uninterrupted power supply.

Fig. 4 is the formation schematic diagram according to the power supply unit of the utility model second execution mode.As shown in Figure 4, the difference between the power supply unit of the power supply unit of second execution mode and first execution mode is to have added switch B1, and it can be a single-pole single-throw switch (SPST), is connected between stand-by power supply 3 and the load.Generally, switch B1 disconnects, carry out uninterrupted power supply ground switching uninterrupted power supply if desired, then must change UPS1, UPS2 over to bypass condition respectively earlier, again with switch B1 closure, diverter switch K1 then, K2 and K3, last elder generation disconnects switch B1, again UPS1, UPS2 is gone back to the inversion output state by bypass, has finished the handover operation of uninterrupted power supply.

More than with single-pole single-throw switch (SPST) switch B1 has been described, but switch B1 can also adopt other form to realize, single pole multiple throw for example.

In addition, first K switch 1, second switch K2, the 3rd K switch 3 and switch B1 can adopt single-pole switch or double-pole switch.

Top description only is used to realize embodiment of the present utility model; it should be appreciated by those skilled in the art; in any modification or partial replacement that does not break away from scope of the present utility model; all should belong to the utility model claim and come restricted portion; therefore, protection range of the present utility model should be as the criterion with the protection range of claims.

Claims

1, a kind of power supply unit is characterized in that, comprising:

Switch element (K1, K2, K3),

First uninterrupted power supply (UPS1) has first input end (S13), second input (S12) and first output (S11), and described first input end (S13) connects first external power source (1); And

Second uninterrupted power supply (UPS2) has the 3rd input (S23), four-input terminal (S22) and second output (S21), and described the 3rd input (S23) connects second external power source (2);

Wherein, described switch element (K1, K2, K3) under first state, second output (S21) is connected to second input (S12), first output (S11) is connected to load (4), and the 3rd external power source (3) is connected to four-input terminal (S22); And

(K3) under second state, (S11) is connected to four-input terminal (S22) to described switch element with first output for K1, K2, and second output (S21) is connected to load (4), and the 3rd external power source (3) is connected to second input (S12).

2, power supply unit as claimed in claim 1 is characterized in that, also comprises:

The 4th switch (B1) is connected between described the 3rd external power source (3) and the load (4).

3, power supply unit as claimed in claim 1 or 2 is characterized in that, (K1, K2 K3) comprise first switch (K1) to described switch element, second switch (K2) and the 3rd switch (K3).

4, power supply unit as claimed in claim 3 is characterized in that, described first switch (K1), second switch (K2), the 3rd switch (K3) and the 4th switch (B1) constitute by single-pole double-throw switch (SPDT).

5, power supply unit as claimed in claim 1 or 2 is characterized in that, (K1, K2 K3) are made of triac device described switch element.

6, power supply unit as claimed in claim 3 is characterized in that, described first switch (K1), second switch (K2), the 3rd switch (K3) and the 4th switch (B1) constitute by single-pole switch or double-pole switch.