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Automatic stabilized power supply unit

A power supply device and automatic voltage stabilization technology, which is applied to circuit devices, battery circuit devices, collectors, etc., can solve problems such as timers not charging and unable to provide power for loads

Active Publication Date: 2018-01-30
GUANGXI YUCHAI MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide an automatic voltage-stabilizing power supply device, thereby overcoming the drawbacks of the existing automatic voltage-stabilizing power supply device that cannot provide power for the load when the battery pack is low in power and the timer is in a non-charging state

Method used

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Embodiment Construction

[0017] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0018] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

[0019] figure 1 A schematic structural diagram of an automatic voltage stabilizing power supply device according to a preferred embodiment of the present invention is shown. Such as figure 1 As shown, the automatic voltage stabilizing power supply device includes: a normally closed switch SB1, a start normally open switch SB2, a time relay 3, a first contactor KM1, a second contactor KM2, a third contactor KM3, a step-dow...

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Abstract

The invention discloses an automatic voltage stabilizing power supply device, comprising: a normally open switch connected with the first electrode of an AC power supply; a third contactor, one end of the coil of which is connected with the other end of the normally open switch, and the other end is connected with the AC power supply The second electrode of the third contactor is connected, and the first normally open switch of the third contactor is connected in parallel with the starting normally open switch; the time relay, its coil is connected between the normally open switch and the AC power supply; the first and second contactors, both One end of the coil of the time relay is connected in series with the auxiliary switch of the time relay, the third normally open switch of the third contactor and the AC power supply in turn, and the other end is connected with the AC power supply; The open switch is connected to the AC power supply; the storage battery pack is connected to the step-down rectification device through the second normally open switch of the second contactor; and the voltage detector is connected to the storage battery pack, and its auxiliary switch is connected to the auxiliary switch of the time relay in parallel. The power supply of the device is relatively stable.

Description

technical field [0001] The invention relates to the electrical field, in particular to an automatic voltage stabilizing power supply device. Background technique [0002] At present, domestic engine test benches are all equipped with a power supply (24V, 6A) for boosting the idle speed of the prototype, and it is also used as a detection power supply for detecting the solenoid valve of the fuel cut-off cylinder of the diesel engine. Some fuel cut-off solenoid valves require 24V, 40-60A working current. For this reason, 24V, 40-60A switching power supply is generally used. However, the switching power supply is prone to short circuit due to contact between positive and negative electrodes due to misoperation, causing the switching power supply to burn out and be damaged. [0003] And the patent document whose notification number is CN204068394U discloses an automatic voltage stabilizing power supply device, which controls the on-off of the current of the contactor, the trans...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H02J7/02
Inventor 梁雄伟方史林张剑展蒋灵敏赖仲志林霞桦
Owner GUANGXI YUCHAI MASCH CO LTD
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