CN207719853U - Multifunctional portable charging device - Google Patents

Abstract

The utility model discloses a multifunctional portable charging device, which comprises a power box; a battery module; an inverter installed in the power box and used for converting the stable DC voltage generated by the battery module into an adjustable AC voltage; The meter is used to display the real-time current and voltage value of the charging device; the safety device is set on the input panel of the power box through the fastening knob, and is connected in series with the battery module through the wire to prevent the short circuit of the electrical circuit and the excessive current from causing the power burn out. The multi-functional portable charging device of the utility model effectively solves problems such as unstable performance of the gun battery, difficulty in charging and maintenance, single function, and incomplete elements. As the core, it can output AC voltage that meets the different load requirements of the artillery, can continuously conduct artillery shooting training, and provide power for external maintenance and support appliances under night combat lighting and field combat conditions.

Description

A multifunctional portable charging device

technical field

The utility model relates to the technical field of electric manufacturing, in particular to a multifunctional portable charging device.

Background technique

It is generally necessary to use batteries on artillery, which can be used not only as the lighting power supply of the artillery, but also as the firing and starting power supply of the artillery. In order to enable the artillery to successfully complete long-term shooting combat tasks or daily teaching and training tasks under adverse weather conditions or night training, when lighting fixtures, electric shock devices, and electric bomb supply devices continue to consume electric energy, in addition to certain requirements for battery capacity In addition, there are certain requirements for voltage stability, wide-range adjustability of voltage and current, and flexibility of AC-DC conversion.

As an important part of the artillery power supply system, the battery plays a vital role in ensuring the full salvo of the artillery, focusing the fire, and controlling the artillery to stop at the same time. At the same time, because the charging battery can be charged and discharged multiple times It is convenient and quick to use and maintain, and it is the best choice for artillery power configuration. However, at present, the battery equipped with the gun has defects such as unstable performance, difficult charging and maintenance, and single function, which seriously affect the service life of the battery, resulting in the inability to continue some operations when the gun is fired, and the combat effectiveness of the equipment cannot be exerted. The details are as follows:

(1) The performance is unstable. The gun battery often has many faults such as virtual power, unstable voltage, and short use time when it is in use. When organizing live ammunition shooting, there will often be a fully charged battery that has just been installed. After half a day of shooting training, the battery may have insufficient power and insufficient firing voltage, resulting in failure of the artillery electric shock device and failure to fire normally. Sometimes the voltage measured by a multimeter shows a fully charged state, but the cannon is still unable to fire after the connection line is connected to the cannon, and the battery is in a virtual state.

(2) It is difficult to charge and maintain. The gun battery is a chemical battery filled with electrolyte, which requires regular maintenance and filling of electrolyte and distilled water. The terminal post of the battery is particularly prone to oxidation. Oxidation of the terminal post will lead to a decrease in its conductivity, poor contact or excessive line voltage drop loss. big. Oxidation is easy to corrode the battery pole and connecting wire plug, and requires regular maintenance. On the other hand, when the battery is low in power, it needs to be connected to a dedicated charging device and adapted to the corresponding charging voltage to complete the charging operation. When training in the field or when the mains power cannot be connected, the charging equipment cannot be carried or used. To charge the battery equipped with the gun, it must be connected to a special charging pile to perform the charging operation. .

(3) The function is single and the elements are incomplete. The structure of the gun battery is too simple, it can only provide firing voltage for the electric firing device of the gun, and it does not have voltage and current adjustment and display functions. One is that there is no circuit safety device. When the firing circuit of the artillery has a short-circuit fault, the battery is very likely to burn out. The second is that the gun battery is not designed with a power display device, and it cannot be visually displayed in a timely manner whether the power is in a state of power shortage or undervoltage during use.

A new type of multifunctional portable charging device for guns, as a platform-type adjustable power supply suitable for various types of artillery lighting, firing, motor drive and maintenance, must meet the following basic conditions: First, the portable charging battery must be able to have a certain The structural strength meets the portability requirements for use in harsh outdoor environments under field conditions. At the same time, the structural size should be as small as possible under the premise of meeting the requirements of the artillery's electrical parameters, so as to facilitate tooling positioning in the small space of the artillery. Second, since each electrical device of the artillery has different requirements for electrical parameters such as power supply current, voltage, and power, and has a certain range, in order to meet the power demand of different devices, the electrical output of the platform-type adjustable power supply must have a certain degree of flexibility. , that is, the multifunctional portable rechargeable battery can adjust the electrical parameters within a certain range according to the input requirements of different devices of different types of artillery. Third, in addition to directly outputting DC voltage, the platform-type adjustable power supply must also be able to provide power support for the artillery to complete maintenance and training tasks in a field environment, and can provide high-power and stable AC voltage output. Fourth, the modular design of portable rechargeable batteries is required, combined installation is convenient for carrying and artillery tooling, and it is suitable for various tasks in different environments.

Utility model content

Based on the above deficiencies in the prior art, the technical problem solved by the utility model is to provide a multifunctional portable charging device, which can provide a stable and continuous variable AC and DC rechargeable power supply for different electrical devices on the artillery, and can provide high Power stable AC voltage output, easy to carry and carry.

In order to solve the above technical problems, the utility model provides a multifunctional portable charging device, comprising:

power box;

a battery module installed in the power box;

An inverter, installed in the power box and used to convert the stable DC voltage generated by the battery module into an adjustable AC voltage;

The AC and DC voltmeter is installed on the input and output panels of the power supply box, and is used to display the real-time current and voltage values of the charging device;

The safety device is installed in the power supply box, is arranged on the input panel of the power supply box through a fastening knob, and is connected in series with the battery module through a wire, so as to prevent the power supply from burning out due to short circuit of the electrical circuit and excessive current.

As a preferred implementation of the above technical solution, the multifunctional portable charging device provided by the embodiment of the present invention further includes part or all of the following technical features:

As an improvement of the above technical solution, the inverter is mainly composed of an inverter bridge, a control logic unit and a filter circuit.

As an improvement of the above technical solution, the battery module is composed of a plurality of batteries connected in series or in parallel to generate a stable DC voltage.

As an improvement of the above technical solution, in one embodiment of the present invention, sockets are installed on the input and output panels of the power box, the sockets are fixed by screws and nuts, and the sockets are made of Bakelite with high strength and good insulation The shell, on the output panel, can set single output or multiple outputs as required, and two-hole or three-hole sockets can be used for external output.

From the above, the shell is made of Bakelite with high strength and good insulation to ensure safe use. If a three-hole socket is used, the ground wire is connected to the metal power supply shell during design and manufacture to prevent electrical leakage from causing safety accidents.

As an improvement to the above technical solution, in one embodiment of the present utility model, a buffer pad is installed inside the power supply box for compression and shock absorption.

From the above, the cushioning pad is made of PVC cushioning pad, which can effectively buffer the impact of external vibration on internal components, and at the same time improve the internal electrical heat dissipation efficiency to ensure the safety and reliability of internal components.

Preferably, in one embodiment of the present invention, the power supply box is a waterproof and sealed rectangular parallelepiped metal shell structure, with louver-style cooling holes on both sides.

In one embodiment of the present invention, the storage battery is a concentrated sulfuric acid lead-acid storage battery, and the rated output voltage of each battery is 12V.

From the above, the use of lead-acid batteries has strong versatility, is easy to assemble and install, and is maintenance-free. The maintenance-free battery has the characteristics of not needing to add electrolyte to the battery on a regular basis, which effectively avoids battery damage caused by untimely maintenance of the use team, and can Effectively prolong battery life.

Preferably, the inverter is a high-power sine wave inverter that can provide high-quality alternating current.

From the above, a high-power sine wave inverter is selected. The high-power sine wave inverter provides high-quality alternating current, can drive any kind of load, and effectively reduces circuit instability and high-order harmonic effects caused by load changes. .

In one embodiment of the utility model, the AC/DC voltmeter adopts a digital display or a mechanical rotation display, and is respectively arranged on the output panel and the input panel of the power box, and has a buzzer threshold value prompt function, and the threshold value is linearly adjustable .

From the above, the AC and DC voltmeter is used to display the real-time current and voltage values of the portable charging device, and prompts the remaining battery power in the form of a buzzer, so as to remind the user when the battery power is lower than the preset minimum power consumption Carry out charging operation in time. The ammeter and voltmeter are used to display whether the current output and voltage output are normal respectively, so as to prevent damage to electrical devices due to insufficient or excessive current and voltage. Digital display readings are used, which is easy to read intuitively and clearly during use. The buzzer prompts that the remaining power threshold of the battery is generally set at 20%, and can be adjusted linearly.

Preferably, the safety device uses a Φ1.2mm copper core enameled wire as a fuse, corresponding to a fusing current of 10A.

From the above, in order to ensure the safety of the device, a replaceable fuse is installed in the DC line and the AC line, which is used to replace the fuse with different diameters according to the power output, so that it can ensure the safety of the circuit under different loads. The copper core enameled wire can be replaced according to different diameters corresponding to different output currents. When the load exceeds the rated maximum load, the copper core enameled wire heats up and fuses, thereby disconnecting the circuit to protect other components.

Compared with the prior art, the technical solution of the utility model has the following beneficial effects: the multifunctional portable charging device of the utility model is simple in structure and reasonable in design, so as to avoid maintenance. The DC voltmeter is the data display interface, the safety device is the protection device of the power system, the socket is the output end of the system, the buffer pad can effectively play the role of shock absorption and protection components, and the copper core cable is connected to each module through a solid quick connector, that is, Plug and play, convenient and fast. According to the functions and purposes of the respective modules, the multifunctional portable charging device of the present utility model is designed in blocks, assembled and installed, and the card slot is positioned. It has complete functions, wide application range, high conversion efficiency and fast start-up; , over/under voltage, over-temperature protection functions; good physical properties: the charging device adopts an all-aluminum shell, which has good heat dissipation performance, hard oxidation treatment on the surface, good friction resistance, and can resist extrusion or impact of a certain external force; Strong load adaptability and stability. At the same time, the manufacturing cost is low, and it can provide a quick solution for field maintenance teams, teaching units, and repair factories to provide power for all guns or an external power supply for maintenance support.

The above description is only an overview of the technical solutions of the present utility model. In order to better understand the technical means of the present utility model, it can be implemented according to the contents of the description, and in order to make the above-mentioned and other purposes, features and advantages of the present utility model better It is obvious and easy to understand. The following describes in detail in combination with preferred embodiments and accompanying drawings.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings of the embodiments will be briefly introduced below.

Fig. 1 is a schematic structural view of a multifunctional portable charging device in a preferred embodiment of the present invention;

Fig. 2 is a schematic diagram of the working principle of the multifunctional portable charging device of the preferred embodiment of the present invention.

Detailed ways

The specific implementation of the utility model will be described in detail below in conjunction with the accompanying drawings. As a part of this description, the principle of the utility model will be described through the embodiments. Other aspects, features and advantages of the utility model will change through the detailed description. It is clear at a glance. In the figures referred to, the same or similar components in different figures are denoted by the same reference numerals.

Example

Since the electric shock device, lighting, maintenance and other work require different types of power sources when the artillery is fired, it is necessary to output DC and AC voltages at the same time, and the conversion efficiency is required to be high. Therefore, the utility model provides a new type of multifunctional portable charging device for guns, which is suitable for the power supply of the whole gun and the external electrical device, and solves the actual combat conditions such as the long-term use of the battery for virtual power, and the inability to guarantee the power for lighting and maintenance. It can support the completion of long-term combat training tasks, and can effectively provide services for teaching and training.

Specifically, the multifunctional portable charging device of the present utility model is mainly composed of a power supply box 10, a battery module 20, an inverter 30, an AC and DC voltmeter, a safety device 40, a socket 50, a buffer pad and a cable wire, and the power supply box 10 is Waterproof and sealed cuboid metal shell structure, the metal shell structure is all aluminum shell, which can prevent the intrusion of rain and wind and sand, and there are louver type cooling holes on both sides, which has good heat dissipation performance, hard oxidation treatment on the surface, good friction resistance, and It can resist the extrusion or impact of a certain external force, has good insulation performance, and is safe and reliable to use. The appearance of the power supply box 10 is shown in FIG. 1 , the size is 30cm×20cm×20cm, and the total weight is about 8kg.

The utility model effectively solves the problems of unstable performance of the gun battery, difficulty in charging and maintenance, single function, and incomplete elements. The AC voltage required by the different loads of the artillery can continuously conduct artillery shooting training, and supply power for external maintenance and support appliances under night combat lighting and field conditions.

Wherein, the battery module 20 is composed of multiple batteries connected in series or in parallel to generate a stable DC voltage to provide initial power for the charging device. The battery pack is installed at the bottom of the cuboid power supply box 10, and is fixed by a card slot of corresponding size. Positioning nuts are used for horizontal and vertical fastening and adjustment. It is mainly used to fix the battery pack in the power supply box 10 to prevent the battery pack from being fired or rotated by the artillery. The group creates a shock shift. The battery combination consists of three concentrated sulfuric acid lead-acid batteries with a rated output voltage of 12V connected in series to form a battery pack. The storage battery pack is horizontally installed in the waterproof airtight power supply box 10 by adopting a card slot type installation. Use a cable with a copper terminal fork to connect the terminal of the battery pack to the interface of the inverter, and clamp the terminal fork with a nut to ensure good contact and avoid the danger of virtual contact discharge of the conductor due to excessive load.

The inverter 30 is installed in the power box 10 and is used to convert the stable DC voltage generated by the battery module 20 into an adjustable AC voltage, mainly composed of an inverter bridge, a control logic unit and a filter circuit. The inverter 30 adopts a high-performance and high-power sine wave inverter with a maximum output power of 1000W, an input DC voltage of 36V, and an output AC voltage of 220V. The inverter startup time is less than 5s. Considering factors such as heat dissipation, the inverter 30 is fixed on the right side of the battery pack through a slot in the casing, and is fixed at a certain angle with the battery to facilitate rapid heat dissipation of the inverter. The inverter 30 is connected in parallel with the terminal post of the battery pack through a copper core cable, and the switch is connected in series at the output end of the inverter.

The AC and DC voltmeter adopts digital display or mechanical rotation display, and is respectively arranged on the output panel and the input panel of the power supply box 10, and has a buzzer threshold value prompt function, and the threshold value is linearly adjustable. It adopts red digital tube display, which is clear and reliable, and has a built-in buzzer. The threshold value setting of the buzzer is adjustable. When overpressure occurs, it will prompt the operator with a sharp "didi" sound. The AC/DC voltmeter is used to display the real-time current and voltage value of the portable rechargeable battery, and prompts the remaining battery power in the form of a buzzer, so as to remind the user to charge in time when the battery power is lower than the preset minimum power consumption operate. The ammeter and voltmeter are used to display whether the current output and voltage output are normal respectively, so as to prevent damage to electrical devices due to insufficient or excessive current and voltage.

The safety device 40 is installed in the power supply box 10, is arranged on the input panel of the power supply box through a fastening knob, and is connected in series with the battery module through a wire, so as to prevent the power supply from being burned out due to a short circuit of the electrical circuit and excessive current. The safety device 40 is firmly connected to the battery pack through one end of the cable, and the other end is connected to the common end of the socket and the charging port. The core part of the safety device adopts a copper core enameled wire with a diameter of 1.2 mm, corresponding to a fusing current of 10A. After fusing, it can be replaced in time when the circuit is disconnected, which is convenient, fast, and easy to maintain. In order to ensure the safety of the device, a replaceable fuse is installed in the DC line and the AC line, which is used to replace the fuse with different diameters according to the power output, so that it can ensure the safety of the circuit under different loads.

The input and output panels of the power supply box 10 are equipped with a socket 50, which is connected to the power supply system as a load or an electrical appliance through a plug. The socket 50 is fixed by screws and nuts. The socket 50 is made of bakelite with high strength and good insulation. On the output panel, single output or multiple outputs can be set as required, and two-hole or three-hole sockets can be used for external output. The charging input socket adopts a double-hole Bakelite socket, and the power supply output end adopts a three-hole socket, and the shell has good insulation. One end of the socket is connected to the ammeter, and the other end is connected to the safety device, which is convenient and quick to plug and play.

The inside of the power supply box 10 is also equipped with a PVC cushion, the PVC cushion is placed on the bottom of the power supply box, covers all the space in the power supply box, and provides a shock-absorbing platform for the internal components. The inside of the power supply box is equipped with a cushion to prevent the battery from During the rotation and marching process of the artillery, it is displaced due to vibration, which plays a certain role in anti-compression and shock absorption. Each part inside the power supply box 10 is connected with a copper core thick cable and a quick connector, so that the electrical connection between each part is reliable. The cable is made of high-conductivity copper core covered with an insulating layer. When wiring in the power box, it is not easy to be disconnected due to bending in a small space to ensure the conduction effect.

Functional module components are installed in the waterproof sealed power supply box 10 of the present utility model, and a DC voltage display screen 61, an input panel switch 62, a charging and power transmission socket 63 are arranged on the front side functional panel, and a safety device fixing knob 64 is displayed on the DC voltage display. The left side of the screen 61. The rear panel is provided with an AC voltmeter 71, an output panel switch 72, an AC output panel 73, and the like. Metal trunnion handles are installed on both sides of the power supply box 10 in the utility model, which is convenient for carrying.

As a general idea of the utility model, the utility model also discloses a design, manufacture and use technical scheme of a multifunctional portable charging device, which includes the following steps: designing and manufacturing a new multifunctional portable charging device for guns; designing and manufacturing a new multifunctional portable charging device for guns; Precautions for the use of the device; maintenance and maintenance methods of the new multi-functional portable charging device for guns; a new multi-functional portable charging device for guns of the utility model can provide electricity for all guns or maintenance for field maintenance teams, teaching units, and repair factories. Secure external power supply provides a quick solution. Precautions for use:

1. Do not operate in a volatile gas or flammable environment during use.

2. It is strictly forbidden to cover the outlet of the exhaust fan of the inverter during use.

3. It is strictly forbidden to overload to avoid power failure.

4. The output of the power socket cannot be connected in parallel with the mains.

5. When the voltage of the DC voltmeter shows 32V and there is a continuous buzzing sound inside the power supply, the power supply should be stopped at this time to avoid burning out the inverter.

6. Charging and inverter cannot be carried out at the same time. That is, the charging plug cannot be inserted into the electrical circuit of the inverter output during inversion.

7. Before connecting the input and output of the machine, please ground the shell of the machine correctly.

8. The interval between two startups should not be less than 5 seconds (cut off the input power).

9. In order to avoid accidents, it is strictly forbidden to open the case with power on for operation and use; if there is a fault, please do not continue to operate and use, and the input and output should be cut off in time, and the maintenance personnel or maintenance unit should check and repair.

10. When connecting the battery, make sure that there are no other metal objects on your hands, so as to avoid short circuit of the battery and burn the human body.

11. If the power supply is not used for a long time, it should be stored in a fully charged state, and it should be charged and discharged once a month to improve the service life of the power supply.

12. Please wipe it with a dry cloth or anti-static cloth to keep the machine tidy.

13. The use environment, based on safety and performance considerations, the installation environment should meet the following conditions:

(1) Drying: Do not immerse in water for a long time.

(2) Shady and cool: the temperature is between -20°C and 70°C;

(3) Ventilation: Keep the surface of the shell free of foreign matter, and the other end surfaces are well ventilated.

The maintenance and maintenance steps are simple. Every time you complete the operation training, be sure to wipe the portable charging device to keep the appearance clean and the connecting cables clean, and ensure that there is no oil, dust and sundries.

Compared with the prior art, the utility model has the advantages that: the new multifunctional portable charging device for guns of the utility model has a modular design according to the functions and purposes of each module, has complete functions, a wide range of applications, is safe and reliable, and has high conversion efficiency. Quick start; good safety performance: the charging device has short-circuit, overload, over/under-voltage, and over-temperature protection functions; good physical properties: the charging device adopts an all-aluminum shell with good heat dissipation performance, hard oxidation treatment on the surface, and good friction resistance. And it can resist the extrusion or impact of a certain external force; it has strong load adaptability and stability, and low cost.

The above is only the preferred implementation of the utility model, certainly not to limit the scope of rights of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the premise of the utility model principle , can also make some improvements and changes, and these improvements and changes are also regarded as the protection scope of the present utility model.

Claims (10)

1. a kind of multifunctional portable charging device, it is characterised in that：Including：

Power pack；

Battery module is mounted in the power pack；

Inverter, it is in power pack and regulatable for the stable DC voltage that the battery module generates to be converted to Alternating voltage；

AC DC voltmeter, on the input of the power pack, output slab, for showing that charging unit is electric in real time Flow voltage value；

Safety device is mounted in the power pack, is arranged in the input panel of power pack by tightening knob, passes through conducting wire It is connected on battery module, for preventing because of electric wiring short circuit, electric current is excessive to cause power supply to burn out.

2. multifunctional portable charging device as described in claim 1, it is characterised in that：The inverter is mainly by inversion Bridge, control logic unit and filter circuit composition.

3. multifunctional portable charging device as described in claim 1, it is characterised in that：The battery module is by polylith electric power storage Pond serial or parallel connection forms, for generating steady dc voltage.

4. multifunctional portable charging device as described in claim 1, it is characterised in that：Input, the output of the power pack Socket is installed, which is fixed by screw-nut, and the socket uses intensity big and the bakelite system of good insulating on panel Make shell.

5. multifunctional portable charging device as described in claim 1, it is characterised in that：The inside of the power pack is equipped with Cushion pad is used for resistance to compression damping.

6. multifunctional portable charging device as described in claim 1, it is characterised in that：Power pack is that waterproof sealing formula is rectangular Body metal shell structure, both sides are equipped with venetian blind type heat emission hole.

7. multifunctional portable charging device as claimed in claim 3, it is characterised in that：The accumulator uses concentrated sulfuric acid lead The rated output voltage of acid accumulator, every piece of battery is 12V.

8. multifunctional portable charging device as described in claim 1, it is characterised in that：The inverter is high-quality for that can provide Measure the high-power sinewave inverter of alternating current.

9. multifunctional portable charging device as described in claim 1, it is characterised in that：The AC DC voltmeter uses Digital-scroll technique or mechanical rotation are shown, are separately positioned on the output slab and input panel of power pack.

10. multifunctional portable charging device as described in claim 1, it is characterised in that：The safety device uses Φ 1.2mm copper cores enameled wire is as fuse, corresponding 10A blowout currents.