CN219892974U

CN219892974U - Mobile power supply

Info

Publication number: CN219892974U
Application number: CN202320202030.5U
Authority: CN
Inventors: 杜伟
Original assignee: Zhejiang Ducheng Industry Co ltd
Current assignee: Zhejiang Ducheng Industry Co ltd
Priority date: 2023-02-02
Filing date: 2023-02-02
Publication date: 2023-10-24
Anticipated expiration: 2033-02-02

Abstract

The utility model belongs to the technical field of mobile power sources, and is characterized by comprising a mobile power source shell, wherein radiating ports are symmetrically formed in the side edges of the mobile power source shell, gear marks are fixedly arranged on the mobile power source shell, a gear shifting knob is rotatably arranged on the mobile power source shell and is positioned at the bottom end of the gear marks, a power source main switch, a first normally open button, a normally closed button and a second normally open button are arranged on the mobile power source shell, a socket and a circuit protector are fixedly arranged on the mobile power source shell, and a fifth light emitting diode and a sixth light emitting diode are arranged at the top end of the socket. According to the utility model, through the design of the mobile power supply shell and the incandescent lamp, the magnitude of the output current can be judged by observing the brightness degree of the incandescent lamp, and then the fault magnitude of the maintained object can be deduced.

Description

Mobile power supply

Technical Field

The utility model belongs to the technical field of mobile power supplies, and particularly relates to a mobile power supply.

Background

In the field of electrical tests, the situation that the electrical equipment in a construction site needs to be tested before being put into operation is frequently encountered, and because the frequency converter uses different power supply voltage grades, the frequency converter needs to be maintained by providing different grades of voltage;

chinese utility model patent: the utility model discloses a multi-voltage output mobile power box, which is disclosed in application number CN202220897403.0 and publication number CN217406219U, and comprises a power switch S1, a direct current digital display voltmeter V1 and a power relay KM5, wherein the power switch S1 is connected with a charging relay KM4 connecting contact of a lithium iron phosphate battery C1, the inverter N1 is electrified to work, and through the rotation of a voltage selection knob S2, the multi-voltage output mobile power box can output alternating currents with various voltages, and the voltages are regulated through the knob, and are internally supplied with power by using a lithium battery, so that the test work is convenient to carry out;

in the practical use process, when the board-level maintenance and even the chip-level maintenance work are carried out, the real three-phase 200v alternating voltage or three-phase 400v alternating voltage is not necessarily needed, and 200v and 400v grades of alternating voltage and corresponding 300v and 500v grades of direct voltage are needed.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide a mobile power supply which can solve the problem of troublesome AC/DC conversion of the existing mobile power supply.

A mobile power supply is characterized by comprising a mobile power supply shell;

the side edges of the mobile power supply shell are symmetrically provided with radiating openings;

the gear mark is fixedly arranged on the mobile power supply shell, a gear shifting knob is rotationally arranged on the mobile power supply shell, and the gear shifting knob is positioned at the bottom end of the gear mark;

the mobile power supply shell is provided with a power supply main switch, a first normally open button, a normally closed button and a second normally open button;

the portable power source shell is fixedly provided with a socket and a circuit protector, and the top end of the socket is provided with a fifth light emitting diode and a sixth light emitting diode.

Preferably, two lamp holders are symmetrically and fixedly arranged on two sides of the mobile power supply shell, and incandescent lamps are arranged on the lamp holders.

Preferably, the gear mark is divided into four parts, and a first light emitting diode, a second light emitting diode, a third light emitting diode and a fourth light emitting diode are arranged between the gear mark and the gear knob in a central symmetry manner.

Preferably, the first, third and fifth light emitting diodes are red light emitting diodes, the second and fourth light emitting diodes are green light emitting diodes, and the sixth light emitting diode is a yellow light emitting diode;

preferably, the normally closed button is a red normally closed button, the first normally open button is a green normally open button, and the second normally open button is a yellow normally open button.

Preferably, in the schematic circuit diagram, LED1 is a first light emitting diode, LED2 is a second light emitting diode, LED3 is a third light emitting diode, LED4 is a fourth light emitting diode, LED5 is a fifth light emitting diode, LED6 is a sixth light emitting diode, SB1 is a normally closed button, SB2 is a first normally open button, SB3 is a second normally open button, SS is a shift knob, XS is a QG is a power master switch, and FU is a circuit protector;

TC is a 220V-24V transformer of 15VA, and TV is a 220V-380V autotransformer of 50 VA. Preferably, in the schematic circuit diagram, HL1 and HL2 are connected in series by using two incandescent lamps, and R1 and R2 not only serve as voltage equalizing for C1 and C2, but also serve as discharging for two capacitors.

Preferably, in the schematic circuit diagram, four groups of contact relays with coil voltages of 24v are adopted for K1, K2, K3, K4, K5 and K6.

Compared with the prior art, the utility model has the beneficial effects that:

the portable power source of the utility model can judge the output current by observing the brightness degree of the incandescent lamp through the design of the portable power source shell and the incandescent lamp, and further deduce the fault size of the maintained object.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic diagram of the main circuit of the present utility model;

FIG. 3 is a schematic diagram of a control circuit of the present utility model;

in the figure: 1. the portable power source shell, 1-1, the thermovent, 2, gear mark, 3, the mains switch, 4, the socket, 5, first luminescent diode, 6, second luminescent diode, 7, third luminescent diode, 8, fourth luminescent diode, 9, shift knob, 10, first normally open button, 11, normally closed button, 12, second normally open button, 13, the circuit protector, 14, fifth luminescent diode, 15, sixth luminescent diode, 16, lamp stand, 17, incandescent lamp.

Detailed Description

Please refer to fig. 1-3, which is a portable power source with convenient ac/dc conversion. Concretely, a mobile power supply includes a mobile power supply housing 1.

The side of the mobile power supply shell 1 is symmetrically provided with a heat radiation port 1-1, the mobile power supply shell 1 is fixedly provided with a gear mark 2, the mobile power supply shell 1 is rotatably provided with a gear knob 9, the gear knob 9 is positioned at the bottom end of the gear mark 2, the mobile power supply shell 1 is provided with a power supply main switch 3, a first normally open button 10, a normally closed button 11 and a second normally open button 12, the mobile power supply shell 1 is fixedly provided with a socket 4 and a circuit protector 13, and the top end of the socket 4 is provided with a fifth light emitting diode 14 and a sixth light emitting diode 15.

Two lamp holders 16 are symmetrically and fixedly arranged on two sides of the mobile power supply shell 1, an incandescent lamp 17 is arranged on the lamp holders 16, and the size of output current can be judged by observing the brightness degree of the incandescent lamp 17, so that the fault size of a maintained object can be deduced.

The gear mark 2 is divided into four parts, and a first light-emitting diode 5, a second light-emitting diode 6, a third light-emitting diode 7 and a fourth light-emitting diode 8 are arranged between the gear mark 2 and the gear shifting knob 9 in a central symmetry manner.

The first light-emitting diode 5, the third light-emitting diode 7 and the fifth light-emitting diode 14 are red light-emitting diodes, the second light-emitting diode 6 and the fourth light-emitting diode 8 are green light-emitting diodes, and the sixth light-emitting diode 15 is a yellow light-emitting diode;

the normally closed button 11 is a red normally closed button, the first normally open button 10 is a green normally open button, and the second normally open button 12 is a yellow normally open button.

In the circuit schematic diagram, the LED1 is a first light-emitting diode 5, the LED2 is a second light-emitting diode 6, the LED3 is a third light-emitting diode 7, the LED4 is a fourth light-emitting diode 8, the LED5 is a fifth light-emitting diode 14, the LED6 is a sixth light-emitting diode 15, the SB1 is a normally-closed button 11, the SB2 is a first normally-open button 10, the SB3 is a second normally-open button 12, the SS is a shift knob 9, the XS is 4, the QG is a main power switch 3, the FU is a circuit protector 13, the TC is a 220V-24V transformer of 15VA, and the TV is a 220V-380V autotransformer of 50 VA.

In the schematic circuit diagram, HL1 and HL2 are connected in series by using two incandescent lamps 17, and R1 and R2 not only serve as voltage equalizing for C1 and C2, but also serve as discharging for two capacitors.

In the circuit schematic diagram, four groups of contact relays with coil voltages of 24v direct current are adopted by K1, K2, K3, K4, K5 and K6.

Working principle: the 4 sets of contacts k1 through k6 are denoted by a, b, c, d, respectively. Two groups of contacts a and b of the k1 to k4 are respectively used for controlling the selection of four output voltages, a group of contacts c of the k3 and k4 are used for auxiliary contacts of the TV, and when the voltage above 400v is not needed, the power supply is disconnected to enable the TV to work;

k1 The C-group contact of the K2 and the d-group contact of the K3 and the K4 are used for ensuring that the alternating voltage is not reversely poured onto the electrolytic capacitors Cl, C2 and the bridge rectifier DB when the alternating current output is used;

the a, b contacts of K5 are used for switching on and switching off an output power supply, the c group contacts are used for keeping self-locking during output, the d group contacts are used for controlling K6, the K6 can be closed only after KS5 is closed, and the mode of 'large current power supply' can be changed only after output current passes through the current limitation of HL1 and HL2 and the second normally open button 12 is pressed. Each time K6 is reset after the output power supply is disconnected, the protection function as on is repeatedly provided at the next output;

the group a contacts of the K6 are used for switching between a 'protection mode' and a 'high-current mode', and the group b contacts are used for keeping self-locking in a high-current output power supply mode.

Claims

1. The mobile power supply is characterized by comprising a mobile power supply shell (1);

the side edge of the mobile power supply shell (1) is symmetrically provided with a heat radiation opening (1-1);

a gear mark (2) is fixedly arranged on the mobile power supply shell (1), a gear shifting knob (9) is rotationally arranged on the mobile power supply shell (1), and the gear shifting knob (9) is positioned at the bottom end of the gear mark (2);

a power supply main switch (3), a first normally open button (10), a normally closed button (11) and a second normally open button (12) are arranged on the mobile power supply shell (1);

a socket (4) and a circuit protector (13) are fixedly arranged on the mobile power supply shell (1), and a fifth light-emitting diode (14) and a sixth light-emitting diode (15) are arranged at the top end of the socket (4);

two lamp holders (16) are symmetrically and fixedly arranged on two sides of the mobile power supply shell (1), and incandescent lamps (17) are arranged on the lamp holders (16).

2. A portable power source according to claim 1, characterized in that: the gear mark (2) is divided into four parts, and a first light-emitting diode (5), a second light-emitting diode (6), a third light-emitting diode (7) and a fourth light-emitting diode (8) are arranged between the gear mark (2) and the gear shifting knob (9) in a central symmetry mode.

3. A portable power source according to claim 2, characterized in that: the first light-emitting diode (5), the third light-emitting diode (7) and the fifth light-emitting diode (14) are red light-emitting diodes, the second light-emitting diode (6) and the fourth light-emitting diode (8) are green light-emitting diodes, and the sixth light-emitting diode (15) is a yellow light-emitting diode.

4. A portable power source according to claim 1, characterized in that: the normally closed button (11) is a red normally closed button, the first normally open button (10) is a green normally open button, and the second normally open button (12) is a yellow normally open button.

5. A portable power source according to claim 1, characterized in that: in the circuit schematic diagram, an LED1 is a first light emitting diode (5), an LED2 is a second light emitting diode (6), an LED3 is a third light emitting diode (7), an LED4 is a fourth light emitting diode (8), an LED5 is a fifth light emitting diode (14), an LED6 is a sixth light emitting diode (15), an SB1 is a normally closed button (11), an SB2 is a first normally open button (10), an SB3 is a second normally open button (12), an SS is a gear shifting knob (9), an XS is a socket (4), a QG is a main power switch (3), and an FU is a circuit protector (13);

TC is a 220V-24V transformer of 15VA, and TV is a 220V-380V autotransformer of 50 VA.

6. A portable power source according to claim 2, characterized in that: in the circuit schematic diagram, the HL1 and the HL2 are connected in series by using two incandescent lamps (17), and R1 and R2 not only serve as voltage equalizing for C1 and C2, but also serve as discharging for two capacitors.

7. A portable power source according to claim 2, characterized in that: in the circuit schematic diagram, four groups of contact relays with coil voltages of 24v direct current are adopted by K1, K2, K3, K4, K5 and K6.