CN217063540U

CN217063540U - Bidirectional converter

Info

Publication number: CN217063540U
Application number: CN202122829197.8U
Authority: CN
Inventors: 谢朝晖
Original assignee: SHENZHEN JIANWANG TECHNOLOGY CO LTD
Current assignee: SHENZHEN JIANWANG TECHNOLOGY CO LTD
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2022-07-26
Anticipated expiration: 2031-11-16

Abstract

The utility model discloses a bidirectional converter, which comprises a converter box body, wherein a bidirectional AC-DC module is arranged in the converter box body, and the bidirectional AC-DC module is provided with an AC interface and a DC interface; the alternating current interface is connected with an alternating current wiring seat in the converter box body through a cable, the direct current interface is connected with a direct current contactor in the converter box body through a cable, and the direct current contactor is also connected with a direct current charging port through a fuse; the converter box body comprises a front panel, a rear panel, a left panel, a right panel, a top panel and a bottom panel, wherein a middle partition plate is arranged between the front panel and the rear panel; the direct current contactor and the fuse are arranged on the inner side of the right panel of the converter box body and are positioned between the middle partition plate and the rear panel of the converter box body. The utility model discloses set up the inboard at the left panel with the alternating current part, the direct current part sets up the inboard at the right panel, is convenient for distinguish to the isolation is good.

Description

Bidirectional converter

Technical Field

The utility model relates to an energy exchange field especially relates to a bidirectional converter.

Background

With the development of new energy, higher requirements are made on the diversity and reliability of energy demands and the utilization form of energy. The bidirectional converter can realize bidirectional transmission of energy in the battery energy storage system and energy of a power grid. In the prior art, alternating current and direct current of a bidirectional converter are arranged on a positive panel together, which is not beneficial to distinguishing; in addition, when designing the bidirectional converter, the problem of mutual isolation between alternating current and direct current also needs to be considered.

SUMMERY OF THE UTILITY MODEL

The utility model provides a bidirectional converter, the direct current and the alternating current of solving current bidirectional converter are unfavorable for distinguishing, the poor problem of isolation.

In order to solve the above technical problem, one technical solution adopted by the present invention is to provide a bidirectional converter, which includes a converter box body, wherein a bidirectional AC-DC module is arranged in the converter box body, and the bidirectional AC-DC module has an AC interface and a DC interface; the alternating current interface is connected with an alternating current wire holder in the converter box body through a cable, the direct current interface is connected with a direct current contactor in the converter box body through a cable, and the direct current contactor is also connected with a direct current charging port through a fuse; the converter box body comprises a front panel, a rear panel, a left panel, a right panel, a top panel and a bottom panel, a middle partition plate is arranged between the front panel and the rear panel, and the alternating current wire holder is arranged on the inner side of the left panel of the converter box body and is positioned between the middle partition plate and the rear panel of the converter box body; the direct current contactor and the fuse are arranged on the inner side of the right panel of the converter box body and are positioned between the middle partition plate and the rear panel of the converter box body.

Preferably, the converter box body is provided with an installation cavity for accommodating the bidirectional AC-DC module from the front panel to the rear panel.

Preferably, the converter box body is further provided with a control cavity for mounting a controller in the direction from the front panel to the rear panel, the controller is in communication connection with the bidirectional AC-DC module, and the control cavity is covered by the control panel.

Preferably, a power supply module is installed on the middle partition plate, and the power supply module is electrically connected with the controller.

Preferably, the installation cavity is arranged between the front panel and the middle partition plate of the deflector box body.

Preferably, the rear panel of the converter box body is hinged to the right panel, and a cabinet lock is arranged at the edge position of the rear panel close to the left panel.

Preferably, a fan bracket for mounting a fan is further disposed on the inner side of the rear panel, the fan is fixed to the fan bracket, and the fan is further electrically connected to the controller.

Preferably, the rear panel is further provided with an air inlet window corresponding to the fan.

Preferably, the bottom panel of the converter box body is provided with a direct current wire passing hole and an alternating current wire passing hole.

The beneficial effects of the utility model are that: the utility model discloses a bidirectional converter, which comprises a converter box body, wherein a bidirectional AC-DC module is arranged in the converter box body, and the bidirectional AC-DC module is provided with an AC interface and a DC interface; the alternating current interface is connected with an alternating current wiring seat in the converter box body through a cable, the direct current interface is connected with a direct current contactor in the converter box body through a cable, and the direct current contactor is also connected with a direct current charging port through a fuse; the converter box body comprises a front panel, a rear panel, a left panel, a right panel, a top panel and a bottom panel, a middle partition plate is arranged between the front panel and the rear panel, and the alternating current wiring seat is arranged on the inner side of the left panel of the converter box body and is positioned between the middle partition plate and the rear panel of the converter box body; the direct current contactor and the fuse are arranged on the inner side of the right panel of the converter box body and are positioned between the middle partition plate and the rear panel of the converter box body. The utility model discloses set up the inboard at the left panel with the alternating current part, the direct current part sets up the inboard at the right panel, is convenient for distinguish to the isolation is good.

Drawings

Fig. 1 is a schematic structural diagram of a bidirectional converter according to the present invention;

fig. 2 is a schematic diagram of a front explosion of a bidirectional converter according to the present invention;

fig. 3 is a schematic diagram of a rear explosion of a bidirectional converter according to the present invention.

Detailed Description

To facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It is to be noted that, 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.

As shown in fig. 1 to fig. 3, the bidirectional converter includes a converter case 1, a bidirectional AC-DC module 2 is disposed in the converter case 1, and the bidirectional AC-DC module 2 can exchange energy, convert an input AC power into a DC power for output, and also convert an input DC power into an AC power for output.

The bidirectional AC-DC module 2 is provided with an alternating current interface and a direct current interface, the alternating current interface is connected with an alternating current wiring seat 3 in the converter box body 1 through a cable, and the alternating current wiring seat 3 is used for inputting an alternating current power supply or outputting the alternating current power supply; the direct current interface passes through direct current contactor 4 in the cable connection converter box 1, and direct current contactor 4 still connects the direct current mouth that charges through fuse 5, and the direct current mouth that charges is used for exporting DC power supply or introducing DC power supply to the external world, and during outside output DC power supply, this DC power supply can charge to car battery. It can be seen that the bidirectional converter can realize the interconversion of the alternating current power supply and the direct current power supply.

Specifically, the deflector box 1 includes a front panel 101, a rear panel 102, a left panel 103, a right panel 104, a top panel, and a bottom panel.

The bottom panel of the converter box body 1 is provided with a direct current wire through hole 17 and an alternating current wire through hole 18. The direct current wire passing hole 17 is used for a direct current cable to pass through, and the direct current cable is connected with the direct current charging port; the ac wire hole 18 is used for an ac cable to pass through, and the ac cable is connected to the ac wire holder 3.

The converter box body 1 is provided with a mounting cavity 6 for accommodating the bidirectional AC-DC module 2 from the front panel 101 to the back panel 102. It can be seen that in the utility model discloses in, installation cavity 6 can hold four two-way AC-DC modules 2 at most, satisfies to export four ways DC power supply or alternating current power supply to the outside.

A supporting plate 61 for bearing the bidirectional AC-DC module 2 is further arranged in the mounting cavity 6, and the bidirectional AC-DC module 2 can be placed on the supporting plate 61 in a drawing mode and is fixedly connected with the supporting plate 61.

The converter box body 1 is further provided with a control cavity 8 for mounting the controller 7 from the front panel 101 to the rear panel 102, and the controller 7 is in communication connection with the bidirectional AC-DC module 2 and is used for acquiring the state of the bidirectional AC-DC module 2 and upgrading the program of the bidirectional AC-DC module 2. Control chamber 7 still covers through control panel 9, and control panel 9 can play dustproof and waterproof's effect to controller 7, is favorable to the later stage to open control panel 9, makes things convenient for maintenance controller 7.

Preferably, be provided with the thing networking module in controller 7, this thing networking module and remote monitoring terminal communication connection, when two-way converter work is unusual, can send unusual information to remote monitoring terminal, and remote monitoring terminal can send people to corresponding place to maintain two-way converter according to the suggestion.

An intermediate partition plate 105 is arranged between the front panel 101 and the rear panel 102 of the converter box body 1, a power module 10 is installed on the intermediate partition plate 105, and the power module 10 is electrically connected with the controller 7 and can convert alternating current into a 12V direct current power supply to supply power to the controller 7.

Preferably, a control switch 20 is disposed on the front panel 101, and the control switch 20 is electrically connected to the power module 10 and the controller 7 for powering on or powering off the controller 7.

Preferably, the installation cavity 6 is arranged between the front panel 101 and the middle partition plate 105 of the deflector box body 1.

Preferably, the ac wire holder 3 is disposed inside the left panel 103 of the deflector box 1 and between the middle partition 105 and the rear panel 102 of the deflector box 1. Meanwhile, the inner side of the left panel 103 of the converter box body 1 is also provided with a lightning protector 11, and the alternating current wire holder 3 is also electrically connected with the lightning protector 11 to prevent the bidirectional converter from being damaged by lightning.

Preferably, the AC connector base 3 is connected to a plurality of AC power sources, and can supply power not only to the bidirectional AC-DC module 2 but also to the power module 10 through the socket 12.

Preferably, the dc contactor 4 and the fuse 5 are disposed inside the right panel 104 of the inverter box body 1 and between the middle partition 105 and the back panel 102 of the inverter box body 1.

The alternating current wire holder 3 and the lightning protector 11 are arranged on the inner side of the left panel 103 of the converter box body 1, and the direct current contactor 4 and the fuse 5 are arranged on the inner side of the right panel 104 of the converter box body 1, so that the alternating current power supply and the direct current power supply are isolated, and mutual interference is avoided.

Further, the rear panel 102 of the deflector box body 1 is hinged with the right panel 104, that is, the rear panel 102 can be opened by rotation; the rear panel 102 is provided with a cabinet lock 13 at an edge position close to the left panel 103. The cabinet lock 13 can lock the rear panel 102, and the rear panel 102 can be opened when the inside of the converter box body 1 needs to be maintained in the later stage.

The inner side of the rear panel 102 is also provided with a fan bracket 14 for mounting a fan, the fan is fixed on the fan bracket 14, and the fan is also electrically connected with the controller 7. When the controller 7 monitors that the internal temperature of the converter box body 1 is overhigh, power is supplied to the fan, and heat dissipation is started.

Preferably, an air inlet window 15 is arranged at a position of the rear panel 102 corresponding to the fan, and the air inlet window 15 is beneficial for air to enter the inside of the deflector box body 1.

Further, the bidirectional converters can be arranged in a stacked mode, so that the plurality of bidirectional converters 1 can work simultaneously. Specifically, the four corners of the top panel of the deflector box body 1 are provided with connecting columns 16, and the connecting columns 16 are used for connecting the bottom panel of another deflector box body 1. The cross section of each connecting column 16 is L-shaped, a connecting hole is formed in the top panel of each connecting column 16, and the bottom panel of the deflector box body 1 is fixed with the connecting columns 16 in a threaded connection mode.

Furthermore, a fixed connecting lug 19 is arranged on the edge of the bottom panel of the deflector box body 1, and the fixed connecting lug 19 is used for fixing the bottom panel of the deflector box body 1 on the ground or other positions.

Therefore, the utility model discloses a bidirectional converter, which comprises a converter box body, wherein a bidirectional AC-DC module is arranged in the converter box body, and the bidirectional AC-DC module is provided with an AC interface and a DC interface; the alternating current interface is connected with an alternating current wiring seat in the converter box body through a cable, the direct current interface is connected with a direct current contactor in the converter box body through a cable, and the direct current contactor is also connected with a direct current charging port through a fuse; the converter box body comprises a front panel, a rear panel, a left panel, a right panel, a top panel and a bottom panel, wherein a middle partition plate is arranged between the front panel and the rear panel; the direct current contactor and the fuse are arranged on the inner side of the right panel of the converter box body and are positioned between the middle partition plate and the rear panel of the converter box body. The utility model discloses set up the alternating current part in the inboard of left panel, the direct current part sets up the inboard at right panel, is convenient for distinguish to the isolation is good.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the same principle as the present invention.

Claims

1. A bi-directional converter, characterized by: the transformer comprises a transformer box body, wherein a bidirectional AC-DC module is arranged in the transformer box body, and the bidirectional AC-DC module is provided with an alternating current interface and a direct current interface; the alternating current interface is connected with an alternating current wire holder in the converter box body through a cable, the direct current interface is connected with a direct current contactor in the converter box body through a cable, and the direct current contactor is also connected with a direct current charging port through a fuse; the converter box body comprises a front panel, a rear panel, a left panel, a right panel, a top panel and a bottom panel, a middle partition plate is arranged between the front panel and the rear panel, and the alternating current wiring seat is arranged on the inner side of the left panel of the converter box body and is positioned between the middle partition plate and the rear panel of the converter box body; the direct current contactor and the fuse are arranged on the inner side of the right panel of the converter box body and are positioned between the middle partition plate and the rear panel of the converter box body.

2. The bidirectional converter according to claim 1, characterized in that: and the direction of the converter box body from the front panel to the rear panel is provided with an installation cavity for accommodating the bidirectional AC-DC module.

3. The bi-directional converter according to claim 2, characterized in that: the converter box body is further provided with a control cavity for mounting a controller from the front panel to the rear panel, the controller is in communication connection with the bidirectional AC-DC module, and the control cavity is covered by the control panel.

4. The bi-directional converter according to claim 3, characterized in that: and the middle partition plate is provided with a power supply module which is electrically connected with the controller.

5. The bidirectional converter according to claim 4, characterized in that: the installation cavity is arranged between the front panel and the middle partition plate of the converter box body.

6. The bidirectional converter according to any of claims 3 to 5, characterized in that: the rear panel of the converter box body is hinged with the right panel, and a cabinet lock is arranged at the edge position of the rear panel close to the left panel.

7. The bidirectional converter according to claim 6, characterized in that: the inner side of the rear panel is also provided with a fan bracket for mounting a fan, the fan is fixed on the fan bracket, and the fan is also electrically connected with the controller.

8. The bi-directional converter according to claim 7, characterized in that: the rear panel is also provided with an air inlet window corresponding to the fan.

9. The bi-directional converter according to claim 8, characterized in that: the bottom panel of the converter box body is provided with a direct current wire passing hole and an alternating current wire passing hole.