阅读说明：本技术 具有防止电池组和ups正负极反接保护的电池开关箱 (Battery switch box with protection for preventing reverse connection of battery pack and UPS positive and negative poles ) 是由 林武松 王浩 余雪峰 于 2020-05-13 设计创作，主要内容包括：本发明公开了一种具有防止电池组和UPS正负极反接保护的电池开关箱,包括箱体,箱体的正面外壁上通过螺钉安装有断路器,且箱体的内部安装有保护电路,保护电路包括UPS正极接线端子、UPS负极接线端子、电池组负极接线端子和电池组正极接线端子,UPS正极接线端子和UPS负极接线端子之间并联有第二控制电路,且电池组负极接线端子和电池组正极接线端子之间并联有第一控制电路,第二控制电路包括第二熔断器和第二二极管,第二熔断器通过导线串联在UPS负极接线端子上。本发明采用较简单的电路构成实现可以在出现电池组与UPS连接时,如果出现正负极接错情况时,通过欠压脱扣器锁定断路器,不让其闭合,从而起到保护作用。(The invention discloses a battery switch box with protection for preventing reverse connection of a battery pack and a positive electrode and a negative electrode of a UPS (uninterrupted power supply), which comprises a box body, wherein a circuit breaker is arranged on the outer wall of the front side of the box body through a screw, a protection circuit is arranged in the box body, the protection circuit comprises a UPS positive electrode wiring terminal, a UPS negative electrode wiring terminal, a battery pack negative electrode wiring terminal and a battery pack positive electrode wiring terminal, a second control circuit is connected between the UPS positive electrode wiring terminal and the UPS negative electrode wiring terminal in parallel, a first control circuit is connected between the battery pack negative electrode wiring terminal and the battery pack positive electrode wiring terminal in parallel, the second control circuit comprises a second fuse and a second diode, and the second fuse is connected on. The invention adopts a simpler circuit structure to realize that the circuit breaker can be locked by the undervoltage release and not closed when the battery pack is connected with the UPS and the condition of wrong connection of the positive electrode and the negative electrode occurs, thereby playing a role in protection.)

1. Battery switch box with prevent that positive negative pole of group battery and UPS from joining in reverse and protecting, including box (1), its characterized in that, there is circuit breaker (2) through the screw mounting on the positive outer wall of box (1), and the internally mounted of box (1) has protection circuit (18), protection circuit (18) include UPS positive binding post (3), UPS negative binding post (4), group battery negative binding post (8) and group battery positive binding post (9), it has second control circuit (13) to connect in parallel between UPS positive binding post (3) and UPS negative binding post (4), and connects in parallel between group battery negative binding post (8) and group battery positive binding post (9) has first control circuit (5).

2. The battery switch box with protection against reverse polarity of the battery pack and UPS according to claim 1, wherein the second control circuit (13) comprises a second fuse (12) and a second diode (14), the second fuse (12) is wired in series to the UPS negative terminal (4), the second diode (14) is wired in series to the UPS positive terminal (3), and a second converter (15) is wired between the second fuse (12) and the second diode (14).

3. The battery switch box with protection against reverse polarity of the UPS and the battery pack according to claim 2, wherein a relay (16) is connected between the second fuse (12) and the second diode (14) via a wire, and the relay (16) is connected in parallel with the second inverter (15).

4. The battery switch box with protection against reverse connection of the positive pole and the negative pole of the battery pack and the UPS according to claim 1, wherein the first control circuit (5) comprises a first fuse (10), one end of the first fuse (10) is electrically connected to the positive pole terminal (9) of the battery pack through a wire, one end of the first fuse (10) far away from the positive pole terminal (9) of the battery pack is electrically connected to a first diode (11), one end of the first diode (11) far away from the first fuse (10) is electrically connected to a normally open relay contact (17), and a first converter (7) is connected in series between the normally open relay contact (17) and the negative pole terminal (8) of the battery pack through a wire.

5. The battery switch box with the protection against the reverse connection of the positive pole and the negative pole of the UPS according to claim 4, characterized in that the inside of the circuit breaker (2) is provided with an undervoltage notch coil (6), and the undervoltage notch coil (6) is connected in parallel with the first converter (7) through a lead.

Technical Field

The invention relates to the technical field of switch boxes, in particular to a battery switch box with protection for preventing reverse connection of a battery pack and a positive electrode and a negative electrode of a UPS (uninterrupted power supply).

Background

UPS uninterrupted power source is in the essential part of UPS electrical power generating system in modern society a large amount of applications, energy storage components and parts group battery, and the connection installation of group battery is very big work load. Often the connection between group battery and the UPS host computer can often operate wrong misconnection, causes the damage of UPS and group battery, causes economic loss and time limit for a project to delay, can cause the casualties even, and the loss that causes is very serious. In the past, the situation can not be avoided, and the operation can only be carried out by the operator with great care, but the professional skill level, the quantity degree and the fatigue degree of the operator have influence.

At present, some battery reverse protection devices for non-UPS applications exist in the industry, but because the battery reverse protection devices are only suitable for devices with small capacity and small current, but the UPS has a large capacity, and the charging and discharging current ranges from tens of amperes to thousands of amperes, the existing protection devices cannot be suitable for the devices of the UPS. Therefore, it is desirable to design a battery switch box with protection for preventing the reverse connection between the battery pack and the UPS positive and negative poles to solve the above problems.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a battery switch box with protection for preventing reverse connection of a battery pack and a positive pole and a negative pole of a UPS.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a battery switch box with prevent positive negative pole of group battery and UPS reverse connection protection, includes the box, there is the circuit breaker through the screw mounting on the positive outer wall of box, and the internally mounted of box has a protection circuit, protection circuit includes UPS positive binding post, UPS negative binding post, group battery negative binding post and the anodal binding post of group battery, it has second control circuit to connect in parallel between UPS positive binding post and the UPS negative binding post, and connects in parallel between group battery negative binding post and the anodal binding post of group battery has first control circuit.

Further, the second control circuit comprises a second fuse and a second diode, the second fuse is connected in series to the negative terminal of the UPS through a wire, the second diode is connected in series to the positive terminal of the UPS through a wire, and a second converter is connected between the second fuse and the second diode through a wire.

Furthermore, a relay is connected between the second fuse and the second diode through a lead, and the relay is connected with the second converter in parallel.

Further, first control circuit includes first fuse, wire electric connection is passed through on the anodal binding post of group battery to the one end of first fuse, and the one end electric connection that anodal binding post of group battery was kept away from to first fuse has first diode, the one end electric connection that first fuse was kept away from to first diode has relay normally open contact, and establishes ties through the wire between relay normally open contact and the group battery negative pole binding post and have first converter.

Furthermore, an under-voltage shedding coil is arranged inside the circuit breaker and is connected with the first converter in parallel through a lead.

The invention has the beneficial effects that:

1. through the device, the device adopts a simpler circuit to realize that the circuit breaker is locked through the undervoltage release and is not closed when the battery pack is connected with the UPS and the positive and negative electrodes are wrongly connected, thereby playing a role in protection.

Drawings

Fig. 1 is a schematic structural diagram of a battery switch box with protection against reverse connection of the battery pack and the positive and negative poles of the UPS according to the present invention;

fig. 2 is a schematic diagram of a protection circuit structure of a battery switch box with protection for preventing reverse connection of the battery pack and the UPS positive and negative poles.

In the figure: the UPS power supply comprises a box body 1, a circuit breaker 2, a UPS positive terminal, a UPS negative terminal, a 5 first control circuit, a 6 undervoltage shedding coil, a 7 first converter, a 8 battery negative terminal, a 9 battery positive terminal, a 10 first fuse, a 11 first diode, a 12 second fuse, a 13 second control circuit, a 14 second diode, a 15 second converter, a 16 relay, a 17 relay normally-open contact and an 18 protection circuit.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

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 a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

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

Referring to fig. 1-2, a battery switch box with protection of preventing reverse connection of a battery pack and a positive pole and a negative pole of a UPS (uninterrupted power supply), comprises a box body 1, a circuit breaker 2 is installed on the outer wall of the front face of the box body 1 through a screw, a protection circuit 18 is installed inside the box body 1, the protection circuit 18 comprises a UPS positive pole wiring terminal 3, a UPS negative pole wiring terminal 4, a battery pack negative pole wiring terminal 8 and a battery pack positive pole wiring terminal 9, a second control circuit 13 is connected between the UPS positive pole wiring terminal 3 and the UPS negative pole wiring terminal 4 in parallel, and a first control circuit 5 is connected between the battery pack negative pole wiring terminal 8 and the battery pack positive.

Further, the second control circuit 13 includes a second fuse 12 and a second diode 14, the second fuse 12 is connected in series to the UPS negative terminal 4 through a wire, the second diode 14 is connected in series to the UPS positive terminal 3 through a wire, and a second inverter 15 is connected between the second fuse 12 and the second diode 14 through a wire.

Further, a relay 16 is connected between the second fuse 12 and the second diode 14 through a wire, and the relay 16 is connected in parallel with the second converter 15.

Further, first control circuit 5 includes first fuse 10, and wire electric connection is passed through on group battery positive terminal 9 to the one end of first fuse 10, and the one end electric connection that first fuse 10 kept away from group battery positive terminal 9 has first diode 11, and the one end electric connection that first fuse 10 was kept away from to first diode 11 has relay normally open contact 17, and has first converter 7 through the wire series connection between relay normally open contact 17 and the group battery negative terminal 8.

Further, an under-voltage notch coil 6 is arranged inside the circuit breaker 2, and the under-voltage notch coil 6 is connected with the first converter 7 in parallel through a lead.

The working principle is as follows: the UPS positive terminal 3 of the circuit breaker 2, the UPS negative terminal 4, the battery pack negative terminal 8 and the positive and negative voltages 9 of the battery pack positive terminal are detected by the first control circuit 5 and the second control circuit 13 of the protection circuit respectively, as long as the positive and negative electrodes of one side are mistakenly connected, the undervoltage tripping coil 6 of the circuit breaker 2 cannot be electrified, the circuit breaker 2 cannot be switched on, the battery pack and the UPS are protected, if the two sides are not mistakenly connected, the undervoltage tripping coil 6 of the circuit breaker 2 is electrified, the circuit breaker 2 can be switched on, the UPS is connected with the battery pack, and the system normally works.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.