CN217823735U

CN217823735U - Portable power supply conversion box

Info

Publication number: CN217823735U
Application number: CN202221742751.7U
Authority: CN
Inventors: 郑强; 沈建强; 谢健慧; 柯军
Original assignee: Shanghai Hugong Enterprise Development Co ltd
Current assignee: Shanghai Hugong Enterprise Development Co ltd
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2022-11-15
Anticipated expiration: 2032-07-08

Abstract

The utility model discloses a portable power supply conversion box, wherein a main power supply module is arranged in the middle part in a box body, a first direct current wiring terminal row and an alternating current wiring terminal row are arranged on one side of the main power supply module, and a second direct current wiring terminal row and an auxiliary power supply module are arranged on the other side of the main power supply module; a socket for inserting the main power supply module into the box body is formed in the middle of the front side of the shell of the box body; a first direct current air switch and a second direct current air switch are respectively arranged on two sides of the socket, the first direct current air switch and the first direct current wiring terminal row are arranged on the same side, and the second direct current air switch and the second direct current wiring terminal row are arranged on the same side; a first direct current binding post is arranged on the lower side of the first direct current air switch, and a second direct current binding post is arranged on the lower side of the second direct current air switch; the main input power switch and the main power socket are arranged on the back of the box body. The advantages are that: the power supply of the debugging equipment can be provided by the portable power supply conversion box, so that the size and the weight of the equipment are reduced, and the layout of the panel and the internal components is re-planned, so that the debugging equipment is simpler and more attractive.

Description

Portable power supply conversion box

Technical Field

The utility model relates to a portable power supply conversion case belongs to power conversion technical field.

Background

The power supply adopted by the conventional power supply conversion box is too low, so that only part of debugging equipment can be supplied with power, the high-power debugging equipment needs to get power from a direct current screen cabinet of a traction station, and the power loss of the traction station can still be caused by abnormal load of the debugging equipment; the existing power supply conversion box is large in size, heavy in weight, slightly messy in layout and inconvenient to take, move and use.

Disclosure of Invention

The utility model aims to solve the technical problem that overcome prior art's defect, provide a portable power supply changeover box.

In order to solve the above technical problem, the utility model provides a portable power supply conversion box, include: the power supply device comprises a box body, wherein a main power supply module is arranged in the middle of the box body, a first direct current wiring terminal row and an alternating current wiring terminal row are arranged on one side of the main power supply module, and a second direct current wiring terminal row and an auxiliary power supply module are arranged on the other side of the main power supply module;

a socket for inserting the main power supply module into the box body is formed in the middle of the front side of the shell of the box body; a first direct current air switch and a second direct current air switch are respectively arranged on two sides of the socket, the first direct current air switch and the first direct current wiring terminal row are arranged on the same side, and the second direct current air switch and the second direct current wiring terminal row are arranged on the same side; a first direct current binding post is arranged on the lower side of the first direct current air switch, and a second direct current binding post is arranged on the lower side of the second direct current air switch;

the main input power switch and the main power socket are arranged on the back of the box body;

the first direct current air switch and the first direct current wiring terminal are electrically connected with the main power supply module through the first direct current wiring terminal row, the main power supply module is electrically connected with the auxiliary power supply module, the auxiliary power supply module is electrically connected with the second direct current air switch and then electrically connected with the second direct current wiring terminal through the second direct current wiring terminal row, and the main power supply module is electrically connected with the main power supply socket through the alternating current wiring terminal row after being connected with the main input power switch in series.

Further, a 380V indicator light and a temperature indicator light are arranged at the upper part of the right side of the front face of the shell; the 380V indicating lamp and the temperature indicating lamp are electrically connected with an alternating current wiring terminal row of an alternating current input end of the main power supply module through alternating current wiring, and the alternating current wiring terminal row is respectively connected with the main input power supply switch and the main power supply module.

Further, a direct-current voltage indicator lamp for displaying the work of the auxiliary power supply module is arranged in the middle of the right side of the front face of the shell; the direct current indicator lamp is electrically connected with the wiring terminal strip at the output end of the auxiliary power module and the second direct current switch through a second direct current wiring, and the first direct current voltage output by the main power module is input into the input end of the auxiliary power module.

Further, the main power supply module and the auxiliary power supply module are fixed in the box body through fasteners.

Further, the main power supply module is configured to convert an alternating current of 380V into a direct current of 220V; and the auxiliary power supply module is used for converting the direct current 220V into the direct current 24V.

Furthermore, the left side and the right side of the box body are provided with ventilation openings.

Furthermore, the specific position of the ventilation opening is set according to the position of the air hole of the main power supply module.

Furthermore, at least one handle is fixedly arranged on the upper side of the box body; the wide surface of the handle is designed.

Furthermore, a pair of reinforcing ribs is arranged at the upper end of the inner side of the box body, and the handle penetrates through the box body and is fixedly connected with the reinforcing ribs.

Furthermore, the main power module adopts an independent power supply with input over-voltage and under-voltage overcurrent protection, open-phase protection, over-temperature protection and output over-voltage and short-circuit protection.

The utility model discloses the beneficial effect who reaches:

the power supply of all debugging equipment is provided by the portable power supply conversion box, and the hidden danger that the power loss of the traction station is caused by abnormal power supply load of the debugging equipment is avoided. The size and the weight of the equipment are reduced, the equipment is convenient to take and move, and the layout of the panel and the internal parts is replanned, so that the equipment is simpler and more attractive.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a layout diagram of the internal structure of the case of the present invention;

fig. 3 is a schematic view of the back structure of the present invention;

FIG. 4 is a schematic view of the location of the reinforcing bars;

FIG. 5 is a schematic diagram of a master input power switch and master power socket electrically connected to a stand-alone power module;

FIG. 6 is a schematic diagram of a 24V air-on and DC indicating electrical connection power module;

FIG. 7 is a schematic diagram of a DC220V air-on, power indication electrical connection power module.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 and 2, a portable power conversion box includes: the power supply device comprises a box body 1, wherein a main power supply module 2 is arranged in the middle of the inside of the box body 1, a first direct current terminal block 3 and an alternating current terminal block 12 are arranged on one side of the main power supply module 2, and a second direct current terminal block 4 and an auxiliary power supply module 5 are arranged on the other side of the main power supply module 2;

a socket for inserting the main power supply module 2 into the box body is formed in the middle of the front face of the shell of the box body 1; a first direct current air switch 6 and a second direct current air switch 7 are respectively arranged on two sides of the socket, the first direct current air switch 6 and the first direct current wiring terminal row 3 are arranged on the same side, and the second direct current air switch 7 and the second direct current wiring terminal row 4 are arranged on the same side; a first direct current binding post 8 is arranged on the lower side of the first direct current air switch 6, and a second direct current binding post 9 is arranged on the lower side of the second direct current air switch 7;

as shown in fig. 5 to 7, the first dc air switch 6 and the first dc terminal 8 are electrically connected to the main power module 2 through the first dc terminal row 3, the main power module 2 is electrically connected to the auxiliary power module 5, the auxiliary power module 5 is electrically connected to the second dc air switch 7 and then electrically connected to the second dc terminal 9 through the second dc terminal row 4, and the main power socket 11 is electrically connected to the main input power switch 10 in series and then electrically connected to the main power module 2 through the ac terminal row 12.

The main power module adopts KR22020T2 independent power module, and the structure is more small and exquisite compact, has perfect input and crosses undervoltage overcurrent protection, and open-phase protection and excess temperature protection export excessive pressure and short-circuit protection, 220V current output improve to 20A, can satisfy the requirement of taking of current whole debugging equipment.

As shown in fig. 1 and 2, in order to make the power conversion box more concise and clear in appearance and easier to be familiar with for use, the front functional layout of the chassis is divided into an upper layer, a middle layer and a lower layer, the left side of the upper layer is provided with a direct current 220V parameter display 13, the right side of the upper layer is provided with a 380V work indicator lamp 14, a temperature indicator lamp 15 for detecting the power supply temperature, a 24V work indicator lamp 16 and a 24V voltmeter 21, the middle layer is provided with a power output control switch, the left side is provided with a 220V first direct current air switch 6, the right side is provided with a 24V second direct current air switch 7, the lower layer is provided with a power output wiring terminal, the left side is provided with a first direct current wiring terminal 8, the right side is provided with a second direct current wiring terminal 9, and the output wiring terminal corresponding to the power output control switch and the power output control switch are on the same side, so as the power output control switch, and the power output wiring terminal and the power output control switch are convenient to distinguish and identify.

As shown in fig. 1 and 3, in consideration of the low frequency factor of field use, the main input power switch 10 and the main power socket 11 are arranged on the back of the chassis, the main power module 2 is arranged in the middle of the front panel, and the front insertion installation mode is adopted to fix the lower part of the control panel with the chassis panel by screws, so that the module maintenance is convenient.

As shown in fig. 1 and 3, the ventilation openings 17 are arranged at both sides and the rear portion of the chassis according to the positions of the air holes of the power module itself, so as to improve heat dissipation performance. The ventilation openings 17 are in a grid shape to prevent impurities, bugs, and the like from entering the box body through the ventilation openings.

As shown in fig. 1, 3 and 4, for the convenience of taking the power conversion box, the upper cover of the case is only provided with one handle 18, considering that the case has a weight of more than 30 jin, the design of a wide and movable handle is adopted, the hand feeling of the case during taking is reduced, a reinforcing rib 19 is arranged in the upper cover of the case, and the handle 18 (the dotted line part shown in fig. 4) penetrates through the upper cover through a fixing part 20 and is fixed with the reinforcing rib 19, so that the effective stress area of the handle at the joint of the upper cover is enlarged.

The interior of the new power supply conversion box is connected with the main power supply module and the auxiliary power supply module through alternating current wiring and direct current wiring, and the new power supply conversion box has 220V and 24V groups of power supply output and control.

Alternating current switch, direct current switch and total input switch are air switch, total supply socket is the needs access such as a five-core socket and five displays, the wiring is very complicated, optimize back main power and place to the front and back in the centre, 220V wiring and 24V power module wiring branch are arranged in main power module's both sides, the function differentiation is more clear and definite, it is more succinct to walk the line, the panel is arranged, DC220V high voltage output/show and DC24V low voltage output/show also arrange respectively in the left and right sides, it is relatively independent, change in discernment and operation. In terms of power output capacity, 20A current (about 4000W) at a DC220V end can be output in a single group or 3 groups. The 24V (nearly 100W) can also be output by a single group or output by 2 groups, and can respectively supply power to a plurality of medium and small power high-low voltage devices or a single high-power device.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims

1. A portable power conversion case, comprising: the box body is characterized in that a main power supply module is arranged in the middle of the box body, a first direct current terminal block and an alternating current terminal block are arranged on one side of the main power supply module, and a second direct current terminal block and an auxiliary power supply module are arranged on the other side of the main power supply module;

2. The portable power conversion box of claim 1, wherein a 380V indicator light and a temperature indicator light are provided on the upper portion of the right side of the front face of the housing; the 380V indicating lamp and the temperature indicating lamp are electrically connected with an alternating current wiring terminal row of an alternating current input end of the main power supply module through alternating current wiring, and the alternating current wiring terminal row is respectively connected with the main input power supply switch and the main power supply module.

3. The portable power conversion box of claim 1, wherein a dc voltage indicator light for indicating the operation of the auxiliary power supply module is provided in the middle of the right side of the front surface of the housing; the direct current indicator lamp is electrically connected with the wiring terminal strip at the output end of the auxiliary power module and the second direct current switch through a second direct current wiring, and the first direct current voltage output by the main power module is input into the input end of the auxiliary power module.

4. The portable power conversion case of claim 1, wherein the main power module and the auxiliary power module are fixed in the case by a fastener.

5. The portable power conversion box of claim 1, wherein the main power module is configured to convert 380V ac to 220V dc; and the auxiliary power supply module is used for converting the direct current 220V into the direct current 24V.

6. The portable power conversion box of claim 1, wherein ventilation openings are formed on both left and right sides and a rear side of the box body.

7. The portable power conversion case of claim 6, wherein the specific position of the vent is set according to the position of the main power module's own wind hole.

8. The portable power conversion box of claim 1, wherein at least one handle is fixedly provided on an upper side of the box body; the wide surface of the handle is designed.

9. The portable power conversion box of claim 7, wherein a pair of ribs are provided at an upper end of an inner side of the box body, and the handle is fixedly connected to the ribs through the box body.

10. The portable power conversion box of claim 1, wherein the main power module is an independent power supply with input over-voltage, under-voltage, over-current protection, open-phase protection, over-temperature protection, and output over-voltage and short-circuit protection.