CN210839059U

CN210839059U - Double-loop power supply type uninterruptible power supply device

Info

Publication number: CN210839059U
Application number: CN201921934449.XU
Authority: CN
Inventors: 常强; 吴广洋; 龚大江; 王勇; 吴洪学; 兰颖; 孔祥麟; 杨晨
Original assignee: Guizhou Power Grid Co Ltd
Current assignee: Guizhou Power Grid Co Ltd
Priority date: 2019-11-11
Filing date: 2019-11-11
Publication date: 2020-06-23
Anticipated expiration: 2029-11-11

Abstract

The utility model discloses a double-loop power supply type uninterrupted power supply device, belonging to the technical field of power supply devices, which comprises a hollow shell; the opening of the shell is sealed and closed through a cover plate; the inner cavity of the shell is provided with a shell with a hollow inner part; the opening of the shell is sealed and closed through a cover plate; a battery pack bin body and a PCB integrated with a plurality of interfaces are arranged in an inner cavity of the shell; the battery pack is detachably arranged in the battery pack bin body through the bin door; the corresponding electronic elements are installed on the PCB, so that double-loop power supply of the device is realized, the power supply priority of the main power supply loop and the standby power supply loop is coordinated, the main loop and the standby loop are finally ensured to provide electric energy required by stable operation for the Internet of things device in a coordinated manner, the device can work in a special environment, the battery is slightly influenced by the outside, the management of the double-loop power supply type uninterruptible power supply device and the battery is more convenient, and the device is applied to remote areas and has lower production and use costs.

Description

Double-loop power supply type uninterruptible power supply device

Technical Field

The utility model relates to a micro-scale solar power generation system, for solar power generation system dc-to-ac converter and the relevant technical field of power, concretely relates to two return circuits power supply formula uninterrupted power supply device.

Background

Generally, the power supply of an internet of things device such as a meter, a terminal, a relay, and a camera only uses commercial power as a unique power supply. If the utility power is cut off, the internet of things equipment such as meter, terminal, relay and camera is shut down, and 24-hour uninterrupted operation of the important equipment cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the utility model provides a two return circuits power supply formula uninterrupted power supply device to solve the problem that the thing allies oneself with equipment such as present terminal station after the major network has a power failure, can't obtain stable power supply.

In order to solve the above problem, the utility model provides a following technical scheme:

a double-loop power supply type uninterrupted power supply device comprises a hollow shell; the opening of the shell is sealed and closed through a cover plate; a battery pack bin body and a PCB are arranged in the inner cavity of the shell; the battery pack is detachably arranged in the battery pack bin body through the bin door; the PCB is integrally provided with a battery interface, a first input interface, a second input interface, an output interface, an inversion module, a dual-power automatic switching unit and a switch interface, wherein the first input interface is sequentially connected with the dual-power automatic switching unit, the switch interface and the output interface in series, the second input interface is sequentially connected with the battery interface and the inversion module in series, and the dual-power automatic switching unit is electrically connected with the inversion module; the first input interface, the second output interface and the output interface are respectively connected with a first aerial plug, a second aerial plug and a third aerial plug, and the aerial plugs are all embedded in the shell for setting; the switch interface is connected with a multifunctional switch; the first aviation plug is connected with an external commercial power, and the second aviation plug is connected with an external standby power.

Preferably, the housing and the cover plate are fixed by a non-return screw.

Furthermore, a waterproof sealing plate is arranged between the shell and the cover plate and is fixed through the non-return screw.

Preferably, the shell, the cover plate and the battery pack cabin body are all made of SPCC metal plates or stainless steel.

Furthermore, the outer side surfaces of the shell and the cover plate are subjected to plastic spraying treatment.

Preferably, the door is made of insulating resin.

Preferably, the side edge of the opening end of the shell is provided with a support lug extending outwards, and the support lug is further provided with a long waist-shaped hole.

The utility model discloses beneficial effect:

the utility model provides a table meter, terminal, relay, the miniwatt power supply unit of things such as thing allies oneself with equipment such as make a video recording, the device can insert major network commercial power electric energy, photovoltaic electric energy, built-in energy storage battery group, inverter circuit and two return circuits auto-change over device. The device can coordinate the power supply priority of two loops of a main power supply and a standby power supply, finally ensures that the main loop and the standby loop cooperate to provide electric energy sources required by stable operation of the equipment for the instrumented devices such as a meter, a terminal, a relay, a camera and the like, can work in a special environment, ensures that the battery is less influenced by the outside, and has more convenient management of the double-loop power supply type uninterruptible power supply device and the battery, and the double-loop power supply type uninterruptible power supply device has lower application and production and use costs in remote areas.

Drawings

Fig. 1 is an exploded and disassembled schematic view of the structure in the embodiment of the present invention;

fig. 2 is a schematic three-dimensional structure diagram of the overall structure of the utility model in this embodiment;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a front view of FIG. 2;

FIG. 5 is a schematic diagram of an integrated circuit of the PCB board of the present embodiment;

description of reference numerals: 1. the casing, 2, first aviation plug, 3, the second aviation plug, 4, PCB board, 4A, battery interface, 4B, first input interface, 4C, second input interface, 4D, output interface, 4E, contravariant module, 4F, dual supply automatic switch-over unit, 4G, switch interface, 5, waterproof apron, 6, apron, 7, group battery, 8, door, 9, the group battery storehouse body, 10, multi-function switch.

Detailed Description

The invention will be further described with reference to the following drawings and specific embodiments:

example (b):

referring to fig. 1 to 4, the present embodiment provides a dual-circuit power supply type uninterruptible power supply apparatus, which includes a hollow housing 1; the opening of the shell 1 is sealed and closed through a cover plate 6; the method is characterized in that: a battery pack bin body 9 and a PCB 4 are arranged in the inner cavity of the shell 1; the battery pack 7 is detachably arranged in a battery pack bin body 9 through a bin door 8; a battery interface 4A, a first input interface 4B, a second input interface 4C, an output interface 4D, an inversion module 4E, a dual-power automatic switching unit 4F and a switch interface 4G are integrally arranged on the PCB 4, wherein the first input interface 4B is sequentially connected with the dual-power automatic switching unit 4F, the switch interface 4G and the output interface 4D in series, the second input interface 4C is sequentially connected with the battery interface 4A and the inversion module 4E in series, and the dual-power automatic switching unit 4F is electrically connected with the inversion module 4E; the first input interface 4B, the second output interface 4C and the output interface 4D are respectively connected with a first aerial plug 2, a second aerial plug 3 and a third aerial plug 11, and the aerial plugs are all embedded on the shell 1 for arrangement; the switch interface 4G is connected with a multifunctional switch 10; the first aviation plug 2 is connected with an external commercial power, and the second aviation plug 3 is connected with an external standby power supply. The model of the dual power automatic switching unit 4F used in this embodiment is WS-DPS 22; the model of the inversion module 4E is WS-HS020A-1HF 04; the multifunctional switch 10 is KCD4-2X1N, and can realize the functions of main/standby switching and safety control after double-loop power supply

Reference may be made to fig. 5, in this embodiment; the first aviation plug (2) is mainly used for externally connecting commercial power with different voltage levels such as AC220V or AC100V, and the second aviation plug (3) is used for externally connecting an electric energy source serving as a renewable standby power supply loop of supplementary wind power, photovoltaic power and the like so as to be used as an electric energy source of a main loop. The third aviation plug 11 is used for externally connecting a load, as can be seen from the figure, the first aviation plug 2 and the second aviation plug 3 can sequentially provide electric energy for the battery pack 7 and the third aviation plug 11, and the electric energy input into the device by the second aviation plug 3 can charge the battery pack and supply power to the inversion module 4E; the inversion output through the inversion module 4E is the same voltage level as the first aviation plug (e.g. AC 220V), the electric energy of the first aviation plug 2 or the inversion module 4E is supplied to the load through the dual power automatic switching unit 4F in order and through the third aviation plug 11, and the dual power automatic switching unit 4F defaults to preferentially adopt the electric energy supply of the first aviation plug 2, namely: when the electric energy of the first aviation plug 2 stops supplying, the second aviation plug 3 and the battery pack 7 cooperatively output power to supply power to the load through the inversion module 4E and the main and standby dual-power automatic switching unit 4F. When the power supply of the first pod 2 is restored, the power supply of the load is switched to the first pod 2 again by the dual power supply automatic switching unit 4F. The dual-power automatic switching unit 4F can coordinate power supply priorities of two loops of a main power supply and a standby power supply, and finally ensures that the main loop and the standby loop cooperate to provide an electric energy source required by the stable operation of the equipment for the internet of things; and the multifunctional switch 10 is arranged at the front end of the third aviation plug 11 and at the rear end of the dual-power automatic switching unit 4F for switching on and off the main output, in the embodiment, a control button of the multifunctional switch 10 is arranged on the side wall of the shell 1.

The housing 1 and the cover plate 6 are fixed by a non-return screw. A waterproof sealing plate 5 is arranged between the shell 1 and the cover plate 6, and the waterproof sealing plate 5 is clamped between the shell 1 and the cover plate 6 through the check screw. Carry out fixed connection to casing 1, waterproof apron 5 and apron 6 through ending contrary screw and can effectively guarantee to the waterproof and dustproof of device inside, in this embodiment, it has a plurality of location mounting hole to open on the ring side along casing 1 open end, ends contrary screw and passes through the mounting hole is fixed casing 1 and apron 6, and waterproof sealing plate 5 uses waterproof latex strip to make.

The shell 1, the cover plate 6 and the battery pack cabin body 9 are all made of SPCC metal plates or stainless steel. The outer surfaces of the case 1 and the cover 6 are subjected to a plastic spraying treatment. The casing 1 and the cover plate 6 after plastic spraying treatment can meet the normal work requirement under the outdoor severe environment, have good rust-proof effect and improve the applicability of the device. The waterproof performance of the whole device in the embodiment is not lower than IP54 level.

The bin gate 8 is made of insulating resin. The door 8 made of insulating resin can effectively prevent the circuit board inside the casing 1 from contacting the metal part which is to be communicated with the battery pack 7 to generate short circuit, thereby avoiding short circuit fault.

The side edge of the opening end of the shell 1 is provided with a support lug extending outwards, and the support lug is also provided with a long waist-shaped hole. The long waist-shaped hole is formed in the support lug so as to make up errors generated in the processing or mounting process, and meanwhile, the long waist-shaped hole can be used for facilitating wall hanging, guide rails and hoop type mounting of the power supply device on other equipment.

Claims

1. A double-loop power supply type uninterrupted power supply device comprises a shell (1) with a hollow interior; the opening of the shell (1) is sealed and closed through a cover plate (6); the method is characterized in that: a battery pack bin body (9) and a PCB (printed circuit board) are arranged in the inner cavity of the shell (1); the battery pack (7) is detachably arranged in the battery pack bin body (9) through a bin door (8); the PCB (4) is integrally provided with a battery interface (4A), a first input interface (4B), a second input interface (4C), an output interface (4D), an inversion module (4E), a dual-power automatic switching unit (4F) and a switch interface (4G), wherein the first input interface (4B) is sequentially connected with the dual-power automatic switching unit (4F), the switch interface (4G) and the output interface (4D) in series, the second input interface (4C) is sequentially connected with the battery interface (4A) and the inversion module (4E) in series, and the dual-power automatic switching unit (4F) is electrically connected with the inversion module (4E); a first aerial plug (2), a second aerial plug (3) and a third aerial plug (11) are respectively connected to the first input interface (4B), the second input interface (4C) and the output interface (4D), and the aerial plugs are all embedded in the shell (1) for setting; the switch interface (4G) is connected with a multifunctional switch (10); the first aviation plug (2) is connected with an external commercial power, and the second aviation plug (3) is connected with an external standby power supply.

2. The apparatus of claim 1, wherein: the shell (1) and the cover plate (6) are fixed through a non-return screw.

3. A dual-circuit power supplying uninterruptible power supply apparatus according to claim 2, wherein: and a waterproof sealing plate (5) is also arranged between the shell (1) and the cover plate (6) and is fixed through the non-return screw.

4. The apparatus of claim 1, wherein: the shell (1), the cover plate (6) and the battery pack bin body (9) are all made of SPCC metal plates or stainless steel.

5. The apparatus of claim 4, wherein: and (3) carrying out plastic spraying treatment on the outer side surfaces of the shell (1) and the cover plate (6).

6. The apparatus of claim 1, wherein: the bin gate (8) is made of insulating resin.

7. The apparatus of claim 1, wherein: the side edge of the opening end of the shell (1) is provided with a support lug extending outwards, and the support lug is also provided with a long waist-shaped hole.