CN220527401U

CN220527401U - High-voltage fusing protection wiring structure of UPS cabinet

Info

Publication number: CN220527401U
Application number: CN202321848014.XU
Authority: CN
Inventors: 秦雪林; 雷同; 顾忠林; 钟继新
Original assignee: Huizhou Tianchen Shangneng Technology Co ltd
Current assignee: Huizhou Tianchen Shangneng Technology Co ltd
Priority date: 2023-07-14
Filing date: 2023-07-14
Publication date: 2024-02-23
Anticipated expiration: 2033-07-14

Abstract

The utility model provides a high voltage fuse protection wiring structure of UPS rack, relates to UPS rack technical field, includes the UPS rack body, this internal upper portion of UPS rack is equipped with first UPS module, and interior lower part is equipped with the second UPS module, and its middle part is equipped with the fuse protection architecture, the one end of fuse protection architecture forms the series connection through the connecting wire with first UPS module, and the other end forms the series connection through connecting wire and second UPS module. The high-voltage fusing protection wiring structure of the UPS cabinet is mainly characterized in that a fusing protection structure is arranged in the middle of a UPS cabinet body, and the first UPS module and the second UPS module are connected in series through the fusing protection structure.

Description

High-voltage fusing protection wiring structure of UPS cabinet

Technical Field

The utility model relates to the technical field of UPS cabinets, in particular to a high-voltage fusing protection wiring structure of a UPS cabinet.

Background

In the current situation, lithium batteries are increasingly widely used in the Uninterrupted Power Supply (UPS) field. It is well known that batteries are an important component of UPS systems and are also a standard for most UPS systems. The UPS carrying the lithium battery has the characteristics of high reliability, high safety, high integration level and low energy consumption, can realize quick and flexible deployment, and is a standard and integrated solution for machine rooms and data centers.

Since the UPS high power equipment is above 480V, and belongs to a high voltage system, the voltage of the lithium battery system is high, and some fuse protection devices are added in the high voltage loop. At present, some cabinet high-voltage products and fuses are built in a PDU high-voltage box, some of the high-voltage products and fuses are arranged on the output side of a battery, and the direct-current high-voltage breakpoint function in the battery is not achieved.

For example, a 100kw cabinet lithium battery system is formed by connecting 10 battery modules in series, each battery module is 48V, and the total output voltage platform is 480V. Belongs to high-voltage platform output and has certain danger for use and operation. Therefore, in addition to the protection switch which is arranged in the high-voltage control box of the battery, a fuse quick-fusing device is added to play a role in quick protection. As shown in fig. 1 and 2, a general manufacturer will configure a group of fuses at the total positive or total negative output ends of the modules connected in series, and when a large current is impacted, the current common installation mode includes the following steps:

1. firstly, a fuse fixing box is arranged on the side face of a cabinet;

2. the positive and negative output lines of each battery are respectively fixed on the fuse input electrode and then are connected from the fuse output electrode;

3. a fuse box cover is fixed.

However, this mounting structure has the following disadvantages:

1. the side space of the cabinet is limited, and the fuse is not convenient to install;

2. the operation is close to the battery module, and has a certain risk;

3. the number of transfer output lines is large, and the connection output is complex;

4. after the battery is disconnected from the load, 480V high voltage is still connected in series between the whole battery pack modules, and the battery pack has certain danger.

Disclosure of Invention

The utility model aims to provide a high-voltage fusing protection wiring structure of a UPS cabinet, which aims to solve the technical problems.

In order to achieve the above purpose, the present utility model is realized by the following technical scheme:

the utility model provides a high voltage fuse protection wiring structure of UPS rack, includes the UPS rack body, this internal upper portion of UPS rack is equipped with first UPS module, and interior lower part is equipped with the second UPS module, and its middle part is equipped with the fuse protection structure, the one end of fuse protection structure forms the series connection through the connecting wire with first UPS module, and the other end forms the series connection through connecting wire and second UPS module.

Preferably, the fuse protection structure adopts a fuse, and the connecting wire adopts a copper bar.

Preferably, the first UPS module includes a main control box and a plurality of lithium batteries, the positive electrode of the main control box is connected with the negative electrode of the first lithium battery through a connecting wire, and the positive electrode of the first lithium battery is connected with the negative electrode of the second lithium battery through a connecting wire, so that the plurality of lithium batteries are connected in series through the connecting wire.

Preferably, the second UPS module includes a plurality of lithium batteries, and the plurality of lithium batteries are connected in series through a connection line.

Preferably, the UPS cabinet body comprises a box body, a fuse mounting plate is arranged in the middle of the box body, two ends of the fuse mounting plate are fixed on the box body, and a fuse fixing column is arranged on the fuse mounting plate.

Preferably, the fuse mounting plate divides the space in the box body into a first UPS module mounting space on the upper portion and a second UPS module mounting space on the lower portion, the first UPS module is mounted in the first UPS module mounting space, and the second UPS module is mounted in the second UPS module mounting space.

Preferably, the first UPS module installation space with the inside both sides of second UPS module installation space all are equipped with the battery supporting plate that the symmetry set up, battery supporting plate is the L type, and its vertical portion is fixed at the box inner wall.

Preferably, the upper end face and the lower end face of the box body are both provided with vent holes, the two side faces are provided with explosion-proof windows, and the door of the box body is also provided with perspective windows.

Preferably, the outer end surfaces of the lithium battery and the fusing protection structure are also fixed with a dust cover.

The high-voltage fusing protection wiring structure of the UPS cabinet has the following beneficial effects:

1. according to the high-voltage fusing protection wiring structure of the UPS cabinet, when the high-voltage fusing protection wiring structure is installed, the first UPS module and the second UPS module can be respectively installed behind the UPS cabinet body, the fuse of the fusing protection structure is installed inside the UPS cabinet body, and the first UPS module and the second UPS module form a serial mode through the fuse, so that the high-voltage fusing protection wiring structure is convenient to install;

2. according to the high-voltage fusing protection wiring structure of the UPS cabinet, the copper bars are adopted for the connecting wires, so that the batteries are connected, and the batteries are connected with the fuses more stably and safely;

3. according to the high-voltage fusing protection wiring structure of the UPS cabinet, the first UPS module and the second UPS module are connected in series through the fuse, after the fuse is fused by high voltage, the output is disconnected, the voltage is also disconnected into two halves, and if the total voltage is 480V, the voltage is disconnected into two 240V;

4. the high-voltage fusing protection wiring structure of the UPS cabinet can play a role in overcurrent protection by only one fuse, and has lower cost;

5. according to the high-voltage fusing protection wiring structure of the UPS cabinet, the fuse is arranged on the fuse mounting plate in the middle of the cabinet body, so that compared with the traditional structure, the space arranged on the side face of the cabinet is larger, and the mounting space is sufficient;

6. according to the high-voltage fusing protection wiring structure of the UPS cabinet, serial connection is formed according to a module serial connection mode, each battery is not required to be connected out after being connected into a fuse, and switching output lines are reduced;

drawings

FIG. 1 is a schematic diagram of a wire mounting reference in the background of the utility model;

FIG. 2 is a second diagram of a wire mounting reference in the background of the utility model;

FIG. 3 is an overall schematic diagram of a high voltage fuse protection wiring structure of a UPS rack according to the present utility model;

FIG. 4 is a schematic view of a UPS cabinet body of the high voltage fuse protection wiring structure of the UPS cabinet according to the present utility model;

FIG. 5 is a schematic diagram illustrating an external configuration of a high voltage fuse protection connection structure of a UPS rack according to the present utility model;

the attached sign: 1. a UPS cabinet body; 101. a case; 102. a fuse mounting plate; 103. a fuse fixing column; 104. a first UPS module installation space; 105. a second UPS module installation space 106, a battery support plate; 107. a vent hole; 108. explosion-proof window, 109, perspective window; 2. a first UPS module; 3. a second UPS module; 4. a fuse protection structure; 5. a main control box; 6. a lithium battery; 7. a dust cover; 8. and (5) connecting wires.

Detailed Description

In order to make the technical solution of the present utility model better understood by those skilled in the art, the following further details of the present utility model will be described with reference to examples and drawings.

It will be understood that when an element is referred to as being "fixed 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. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

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 utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 3 and 4, a high-voltage fuse protection connection structure of a UPS cabinet includes a UPS cabinet body 1, a first UPS module 2, a second UPS module 3, and a fuse protection structure 4. The UPS cabinet body 1 comprises a box body 101, wherein the box body 101 is internally hollow, a fuse mounting plate 102 is arranged in the middle of the box body, two ends of the fuse mounting plate 102 are fixed on the box body 101, and a fuse fixing column 103 is arranged on the fuse mounting plate 102; the fuse mounting plate 102 divides the internal space of the box 101 into a first UPS module mounting space 104 at the upper part and a second UPS module mounting space 105 at the lower part, the first UPS module 2 is mounted in the first UPS module mounting space 104, and the second UPS module 3 is mounted in the second UPS module mounting space 105; the two sides of the first UPS module installation space 104 and the second UPS module installation space 105 are symmetrically provided with a plurality of pairs of battery supporting plates 106, the battery supporting plates 106 are L-shaped, the vertical parts of the battery supporting plates are fixed on the inner wall of the box 101, and the transverse parts of the battery supporting plates extend towards the inside of the box 101 to form a supporting plate surface for supporting batteries; the upper end face and the lower end face of the box body 101 are respectively provided with a vent hole 107, the two side faces are respectively provided with an explosion-proof window 108, and the door of the box body 101 is also provided with a perspective window 109.

As shown in fig. 3 and fig. 5, the first UPS module 2 includes a main control box 5 and a plurality of lithium batteries 6, the main control box 5 is disposed on a battery supporting plate 106 at an uppermost portion in the box 101, the plurality of lithium batteries 6 are disposed on the battery supporting plate 106 below the main control box 5 in a arrayed manner and located in a first UPS module installation space 104, an anode of the main control box 5 is connected with a cathode of the first lithium battery 6 through a connection line 8, and a cathode of the first lithium battery 6 is connected with a cathode of the second lithium battery 6 through the connection line 8, so that the plurality of lithium batteries 6 are connected in series through the connection line 8. The second UPS module 3 includes a plurality of lithium batteries 6, and the plurality of lithium batteries 6 are arranged on a battery support plate 106 in the second UPS module installation space 105. The fuse protection structure 4 adopts a fuse, two ends of the fuse are fixed on a fuse mounting plate 102, a fuse fixing column 103 is arranged on the fuse mounting plate, one end of the fuse is connected with the last lithium battery 6 of the first UPS module 2 in series through a connecting wire 8, the other end of the fuse is connected with the first lithium battery 6 of the second UPS module 3 in series through the connecting wire 8, and the connecting wire 8 adopts a copper bar; the outer end surfaces of the lithium battery 6 and the fusing protection structure 4 are also fixed with a dust cover 7.

It should be noted that: in this embodiment, 10 lithium batteries 6 are adopted, the number of lithium batteries 6 of the first UPS module 2 is 5, the number of lithium batteries 6 of the second UPS module 3 is 5, each lithium battery 6 is 48V, and the total output voltage is 480V; during installation, the master control box 5 is placed on the battery supporting plate 106 at the uppermost surface of the box body 101, 10 lithium batteries 6 are respectively arranged on the battery supporting plate 106 in the box body 101, then the master control box 5 of the first UPS module 2 and 5 lithium batteries 6 are connected in series by adopting copper bars, 5 lithium batteries 6 of the second UPS module 3 are connected in series by adopting copper bars, then two ends of a fuse are connected to the fuse fixing column 103 on the fuse mounting plate 102, then the positive electrode or the negative electrode of the last lithium battery 6 of the first UPS module 2 is connected to one end of the fuse by adopting the copper bars, and the other end of the fuse is connected with the positive electrode or the negative electrode of the first lithium battery 6 of the second UPS module 3 by adopting the copper bars, so that the first UPS module 2 is connected in series with the second UPS module 3 by the fuse. When the fuse is melted by high voltage, the total output of the UPS cabinet can be disconnected, and meanwhile, the total voltage can be disconnected into two halves, namely, the total voltage 480V can be disconnected into two 240V, so that the risk is reduced, and the safety is improved.

The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the present utility model in any way; those skilled in the art will readily appreciate that the present utility model may be implemented as shown in the drawings and described above; however, those skilled in the art should appreciate that many modifications, adaptations, and variations of the present utility model can be made without departing from the scope of the present utility model as set forth in the above-described aspects; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present utility model still fall within the scope of the present utility model.

Claims

1. The utility model provides a high voltage fuse protection wiring structure of UPS rack, includes UPS rack body (1), its characterized in that: the upper portion is equipped with first UPS module (2) in UPS rack body (1), and interior lower part is equipped with second UPS module (3), and wherein is equipped with fusing protection architecture (4), the one end of fusing protection architecture (4) is passed through connecting wire (8) and is formed in series with first UPS module (2), and the other end passes through connecting wire (8) and forms in series with second UPS module (3).

2. The high voltage fuse protection wiring structure of a UPS rack of claim 1, wherein: the fuse protection structure (4) adopts a fuse, and the connecting wire (8) adopts a copper bar.

3. The high voltage fuse protection wiring structure of a UPS rack of claim 2, wherein: the first UPS module (2) comprises a main control box (5) and a plurality of lithium batteries (6), wherein the positive electrode of the main control box (5) is connected with the negative electrode of the first lithium battery (6) through a connecting wire (8), the positive electrode of the first lithium battery (6) is connected with the negative electrode of the second lithium battery (6) through the connecting wire (8), and the plurality of lithium batteries (6) are connected in series through the connecting wire (8).

4. The high voltage fuse protection wiring structure of a UPS rack of claim 2, wherein: the second UPS module (3) comprises a plurality of lithium batteries (6), and the lithium batteries (6) are connected in series through connecting wires (8).

5. The high voltage fuse protection wiring structure of a UPS rack of claim 1, wherein: the UPS cabinet body (1) comprises a box body (101), a fuse mounting plate (102) is arranged in the middle of the box body (101), two ends of the fuse mounting plate (102) are fixed on the box body (101), and fuse fixing columns (103) are arranged on the fuse mounting plate (102).

6. The high voltage fuse protection wiring structure of a UPS rack of claim 5, wherein: the fuse mounting plate (102) divides the inner space of the box body (101) into a first UPS module mounting space (104) at the upper part and a second UPS module mounting space (105) at the lower part, the first UPS module (2) is mounted in the first UPS module mounting space (104), and the second UPS module (3) is mounted in the second UPS module mounting space (105).

7. The high voltage fuse protection wiring structure of a UPS rack of claim 6, wherein: the battery support plates (106) are symmetrically arranged on two sides of the first UPS module installation space (104) and the second UPS module installation space (105), the battery support plates (106) are L-shaped, and the vertical parts of the battery support plates are fixed on the inner wall of the box body (101).

8. The high voltage fuse protection wiring structure of a UPS rack of claim 7, wherein: the anti-explosion box is characterized in that vent holes (107) are formed in the upper end face and the lower end face of the box body (101), anti-explosion windows (108) are formed in the two side faces, and perspective windows (109) are further formed in the door of the box body (101).

9. A high voltage fuse protection wiring structure for a UPS rack as in claim 3 wherein: and a dust cover (7) is also fixed on the outer end surfaces of the lithium battery (6) and the fusing protection structure (4).