CN218733383U

CN218733383U - Mobile charging device

Info

Publication number: CN218733383U
Application number: CN202222537256.9U
Authority: CN
Inventors: 付海鹏; 高晓; 陈振海
Original assignee: Henghua Digital Technology Group Co ltd
Current assignee: Henghua Digital Technology Group Co ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2023-03-24
Anticipated expiration: 2032-09-23

Abstract

The application relates to a portable charging device is applied to the interim power consumption of job site, including a box formula travelling car, be provided with in the travelling car carriage: the input end of the alternating current rectification module is electrically connected with a charging interface; the energy storage module is connected with the output end of the alternating current rectification module in parallel; the output end of the inversion module is used for electrically connecting construction site electric equipment and is a construction site alternating current test power supply; and the alternating current monitoring module is electrically connected with the output end of the inversion module. Through this application to job site powered device or circuit test, can be convenient for job site powered device provides test power, solved no interim power consumption scene or the problem far away of power position is got to interim power consumption scene, improve check out test set power transmission reliability.

Description

Mobile charging device

Technical Field

The application relates to the technical field of electrical equipment, in particular to a mobile charging device.

Background

In the existing power transformation and distribution project, before power transmission of electrical equipment/lines, in order to ensure the reliability of the electrified equipment/lines, most projects require that the power transmission equipment/lines are subjected to low-current test.

Nowadays, the mainstream scheme of the low-current test is to use temporary electricity on a construction site for testing, wherein the temporary electricity on the construction site refers to temporary power lines, various installed electric appliances and mechanical equipment power sources and illumination provided by a distribution box.

The main problem that adopts interim power consumption to exist mainly by two aspects, one is according to the requirement of national industry standard, and the interim power consumption of construction all needs to dispose earth-leakage protector, if will use the electricity to connect to the powered device temporarily, can cause the earth leakage protection tripping because of there is the ground connection condition in powered device N line, can't accomplish the detection. And secondly, because the temporary electricity utilization protection device on the construction site is simpler, certain potential safety hazards exist in the temporary electricity utilization test.

Disclosure of Invention

In order to achieve the above object, the embodiment of the present application provides a mobile charging device, which is applied to temporary power utilization in a construction site, and includes a box type moving trolley, the carriage of the moving trolley is provided with:

the input end of the alternating current rectification module is electrically connected with a charging interface;

the energy storage module is connected with the output end of the alternating current rectification module in parallel;

the output end of the inversion module is used for electrically connecting construction site electric equipment and is a construction site alternating current test power supply;

and the alternating current monitoring module is electrically connected with the output end of the inversion module.

Through the structure, the inversion module and the alternating current rectification module are arranged as the charge-discharge module, the electric energy stored by the energy storage module is converted into the required alternating current to be output through the inversion module so as to test the power receiving equipment or a line, a test power supply can be conveniently provided for the power utilization equipment on a construction site, the input voltage of the charging interface is alternating current 220V, the output voltage is alternating current 380V, in addition, the charging function of the energy storage module is realized through the alternating current rectification module in the embodiment of the application, so that the power transmission reliability of the detection equipment is realized, and the unnecessary loss caused by the power failure of the construction power utilization can be avoided; by adopting the movable structure, the problem that the power taking position is far away when no temporary power utilization site or the temporary power utilization site exists is solved, and great convenience is provided for construction.

In some embodiments, the input end of the inverter module is further electrically connected to a voltmeter and an ammeter to monitor data conditions at any time and provide monitoring data for testing personnel.

In some embodiments, a switching unit is respectively disposed at the output end of the ac rectification module and the input end of the inverter module.

In some embodiments, the energy storage module comprises a plurality of maintenance-free lead-acid batteries with a voltage range of 12V to 36V, so as to provide safe and sufficient power guarantee for the mobile charging device of the present application.

In some embodiments, the three-phase output end of the inverter module, the anode and the cathode of the energy storage module are respectively and electrically connected with a fuse, so that the reliability of the equipment is ensured, and the safety of construction testing personnel and the safety of the equipment are guaranteed.

In some embodiments, the ac rectifying module is configured to convert an ac voltage of the charging interface into a dc voltage and step down the dc voltage.

In some embodiments, the inverter module is configured to convert a dc voltage at an input terminal into an ac voltage and boost the ac voltage.

In some embodiments, the ammeter is connected to the low-voltage end of the loop connecting the energy storage module and the inverter module by connecting a shunt in parallel, so as to reduce interference.

In some embodiments, a hall sensor is further arranged at the high-voltage end of the connection loop of the energy storage module and the inversion module, and is matched with an ammeter to monitor currents of the high-voltage end and the low-voltage end so as to accurately monitor the on-off condition of the loop.

The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below to provide a more thorough understanding of the application.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic circuit diagram of a mobile charging device according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a mobile charging device according to an embodiment of the present disclosure.

In the figure:

1. an alternating current rectification module;

2. an energy storage module;

3. an inversion module;

4. an alternating current monitoring module;

5. a voltmeter;

6. an ammeter;

7. a switch unit;

8. and a Hall sensor.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more clearly understood, the present application is described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments provided in the present application without any inventive step are within the scope of protection of the present application.

It is obvious that the drawings in the following description are only examples or embodiments of the application, and that it is also possible for a person skilled in the art to apply the application to other similar contexts on the basis of these drawings without inventive effort. Moreover, it should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of ordinary skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments without conflict.

Unless defined otherwise, technical or scientific terms referred to herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which this application belongs. Reference to "a," "an," "the," and similar words throughout this application are not to be construed as limiting in number, and may refer to the singular or the plural. The use of the terms "including," "comprising," "having," and any variations thereof herein, is meant to cover a non-exclusive inclusion; for example, a process, method, system, article, or apparatus that comprises a list of steps or modules (elements) is not limited to the listed steps or elements, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Reference to "connected," "coupled," and the like in this application is not intended to be limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The term "plurality" as referred to herein means two or more. "and/or" describes an association relationship of associated objects, meaning that three relationships may exist, for example, "A and/or B" may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. Reference herein to the terms "first," "second," "third," and the like, are merely to distinguish similar objects and do not denote a particular ordering for the objects.

The embodiment provides a mobile charging device which is applied to temporary power utilization in a construction site to test powered equipment. Fig. 1 and 2 are a schematic circuit diagram and a schematic structural diagram of a mobile charging device according to an embodiment of the present application, and as shown in fig. 1 and 2, the mobile charging device includes a box-type mobile cart, and a compartment of the mobile cart is provided with: an alternating current rectification module 1, an energy storage module 2, an inversion module 3 and an alternating current monitoring module 4, wherein,

the input end of the alternating current rectification module 1 is electrically connected with a charging interface; the alternating current rectifying module 1 is used for converting alternating voltage of a charging interface into direct current voltage and reducing the voltage, the charging interface is specifically connected to alternating current 220V of mains supply, and the alternating current rectifying module 1 is used for converting the alternating current 220V of the mains supply into direct current 36V and outputting the direct current to the energy storage module so as to realize the charging process of the energy storage module 2.

The energy storage module 2 is connected with the output end of the alternating current rectification module 1 in parallel; specifically, the energy storage module 2 includes a plurality of maintenance-free lead-acid batteries, and the energy storage module 2 shown in fig. 1 includes 3 maintenance-free lead-acid batteries, and the battery voltage range is 12V to 36V, so as to provide safe and sufficient power guarantee for the mobile charging device of the present application.

The inversion module 3 is electrically connected with the alternating current rectification module 1 and the energy storage module 2, the inversion module 3 is used for converting direct current voltage at an input end into alternating current voltage and boosting the alternating current voltage, specifically, the inversion module 3 of the embodiment of the application is used for converting voltage output by the energy storage module 2 into alternating current 380V, and an output end of the inversion module 3 is electrically connected with a construction site electric device and is a construction site alternating current test power supply; the ac monitoring module 4 is electrically connected to the output end of the inverter module 3 to monitor the output voltage of the inverter module 3 in real time, and the model of the ac monitoring module 4 in this embodiment is specifically IPM-DM-a10.

In addition, the output end of the alternating current rectification module 1 and the input end of the inversion module 3 are respectively provided with a switch unit 7, specifically, the switch unit 7 is a single-pole double-throw switch to control the switching of the charging and discharging states of the energy storage module 2, it should be noted that the switch unit of the present application may also be other electronic switches, such as a relay or a diode, and the deformation of the switch unit based on the technical scheme of the present application also belongs to the protection scope of the present application.

For the security and the reliability of guaranteeing test process, the three-phase output of contravariant module 3, energy storage module 2's positive pole, negative pole be electric connection respectively has the fuse to the security of guarantee construction testing personnel and equipment.

In some embodiments, the input end of the inverter module 3 is further electrically connected to a voltmeter 5 and an ammeter 6 for monitoring data conditions at any time and providing monitoring data for testing personnel. The ammeter is connected to the low-voltage end of the loop connecting the energy storage module 2 and the inversion module 3 through a shunt in parallel so as to reduce interference; the high-voltage end of the connecting loop of the energy storage module 2 and the inversion module 3 is also provided with a Hall sensor 8 which is matched with the ammeter 6 to monitor the current of the high-voltage end and the low-voltage end so as to accurately monitor the on-off condition of the loop.

Through the structure, the inversion module 3 and the alternating current rectification module 1 are arranged as the charge-discharge module, the electric energy stored by the energy storage module 2 is converted into the required alternating current to be output through the inversion module 3, so that the powered device or the line can be tested, a test power supply can be conveniently provided for the power consumption device on the construction site, the input voltage of the charging interface is alternating current 220V, the output voltage is alternating current 380V, in addition, the charging function of the energy storage module 2 is realized through the alternating current rectification module 1 in the embodiment of the application, so that the power transmission reliability of the detection device is realized, and the unnecessary loss caused by the power failure of the power consumption for construction can be avoided; adopt portable structure, solved not have interim power consumption scene or the problem that the power position was far away is got to interim power consumption scene, provide great convenience for the construction.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent application shall be subject to the appended claims.

Claims

1. The utility model provides a portable charging device, is applied to the interim power consumption of job site, its characterized in that, includes a box formula travelling car, be provided with in the travelling car carriage:

2. The mobile charging device of claim 1, wherein the input terminal of the inverter module is further electrically connected to a voltmeter and an ammeter.

3. The mobile charging device of claim 2, wherein a switch unit is disposed at each of the output terminal of the ac rectifying module and the input terminal of the inverting module.

4. The mobile charging apparatus of claim 1, wherein the energy storage module comprises a plurality of maintenance-free lead-acid batteries having a battery voltage ranging from 12V to 36V.

5. The mobile charging device of claim 3, wherein a fuse is electrically connected to the three-phase output terminal of the inverter module, the positive electrode of the energy storage module, and the negative electrode of the energy storage module.

6. The mobile charging device of claim 3, wherein the AC rectifying module is configured to convert an AC voltage of the charging interface into a DC voltage and step down the DC voltage.

7. The mobile charging device of claim 3, wherein the inverter module is configured to convert the DC voltage at the input end into an AC voltage and boost the AC voltage.

8. The mobile charging device of claim 2, wherein the ammeter is connected to the low voltage end of the loop connecting the energy storage module and the inverter module via a shunt.

9. The mobile charging device of claim 8, wherein a hall sensor is further disposed at a high voltage end of the connection loop between the energy storage module and the inverter module.