CN208978638U

CN208978638U - A kind of electronic lock release driving circuit for the pipette tips that charge

Info

Publication number: CN208978638U
Application number: CN201821600316.4U
Authority: CN
Inventors: 徐金; 李顺章; 张平均; 方成林; 鲁天赐; 周斌
Original assignee: Wuhan Hopewell Intelligent Electric Co Ltd
Current assignee: Wuhan Hopewell Intelligent Electric Co Ltd
Priority date: 2018-09-29
Filing date: 2018-09-29
Publication date: 2019-06-14
Anticipated expiration: 2028-09-29

Abstract

The utility model discloses a kind of electronic locks of pipette tips that charge to discharge driving circuit, including single-pole double-throw relay, electronic lock, electrolytic capacitor and counnter attack diode, both ends are separately connected the movable contact and one of stationary contact of the single-pole double-throw relay after the electronic lock is connected with the electrolytic capacitor, another stationary contact of the single-pole double-throw relay connects power supply by the counnter attack diode.The beneficial effects of the utility model include: that the charge and discharge of electrolytic capacitor are controlled using single-pole double-throw relay, realize the unlock to electronic lock using the back discharge of capacitor, circuit is simple and reliable, and stability is strong.

Description

A kind of electronic lock release driving circuit for the pipette tips that charge

Technical field

The utility model relates to electric car charging technique fields, discharge more particularly, to a kind of electronic lock of pipette tips that charge Driving circuit.

Background technique

It is locked in driving application in electric car charged electrical at present, what is generallyd use is self-powered circuit, realizes electronics The locking of lock or release.That is, carrying out locking, fastening gun head gun platform to a driving signal when charging；It is given again after charging complete One driving signal is discharged, convenient for drawing guns.Such mode is not in problem in normal use；When charging process goes out When now abnormal, for example have a power failure suddenly, at this time due to power down, without the release of enough energy driving electronic lock, will lead to can not Unlock, can not draw guns.

Utility model content

The purpose of the utility model is to overcome above-mentioned technical deficiencies, propose a kind of electronic lock release driving of pipette tips that charge Circuit solves the technical issues of can not drawing guns when charging process is abnormal in the prior art.

To reach above-mentioned technical purpose, the electronic lock release that the technical solution of the utility model provides a kind of pipette tips that charge is driven Dynamic circuit, including single-pole double-throw relay, electronic lock, electrolytic capacitor and counnter attack diode, the electronic lock and electrolysis electricity Hold both ends after series connection and be separately connected the movable contact and one of stationary contact of the single-pole double-throw relay, the single-pole double throw after Another stationary contact of electric appliance connects power supply by the counnter attack diode.

Compared with prior art, the beneficial effects of the utility model include: that electrolysis is controlled using single-pole double-throw relay The charge and discharge of capacitor realize the unlock to electronic lock using the back discharge of capacitor, and circuit is simple and reliable, and stability is strong.

Detailed description of the invention

Fig. 1 is the circuit diagram of the utility model；

Voltage oscillogram when Fig. 2 is the electronic lock locking and release of the utility model；

Fig. 3 is the capacitor both ends Charge-discharge wave shape figure of the utility model.

Specific embodiment

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain The utility model is not used to limit the utility model.

The utility model provides a kind of electronic lock release driving circuit of pipette tips that charge, as shown in Figure 1, including that hilted broadsword is double Relay KM, electronic lock YL, electrolytic capacitor C and counnter attack diode D are thrown, after the electronic lock YL connects with the electrolytic capacitor C Both ends are separately connected the movable contact 11 and one of stationary contact 12 of the single-pole double-throw relay KM, the single-pole double throw relay Another stationary contact 13 of device KM passes through the counnter attack diode D connection power vd D.

Preferably, the electrolytic capacitor C is the automotive grade capacitor of 25V/10000 μ F, it can be selected Japan RUBYCON's Grand 25V-10000 μ F ± 20%--105 DEG C is found in PX 25V10000UF or Taiwan, can normally be driven at 55 DEG C of -30 DEG C~﹢ Dynamic electronic lock YL locking and release.

The working principle of this programme is as follows:

When charging, single-pole double-throw relay KM is (i.e. normally opened by stationary contact 13 by the electromagnetic force of own magnetic force coil YC Contact) closure, power supply (such as+12V) charges to electrolytic capacitor C by counnter attack diode D, while forward current flows through electronic lock YL Coil, locking electronic lock YL, as shown in Figures 2 and 3.

After electrolytic capacitor C charging complete, the electric current for flowing through electronic lock YL becomes 0, and no-voltage on electronic lock YL maintains lock Only state, electrolytic capacitor C plays the role of " being isolated " at this time.

It powers off, or is abnormal and power down at the end of charging, single-pole double-throw relay KM loses electromagnetic force, immediately Stationary contact 13 is disconnected, restores to be closed with stationary contact 12 (i.e. normally-closed contact), electrolytic capacitor C is reversely put by normally-closed contact at this time Electricity is driven in the reverse direction electronic lock YL, to discharge electronic lock YL, as shown in Figures 2 and 3.Since the capacitance of capacitor is small, back discharge Time is short, can avoid long-time reverse power supply and damages electronic lock YL magnetic coil, to realize the safe and reliable lock of electronic lock YL It only discharges, while also avoiding powering off the problem of can not drawing guns suddenly.

Electrolytic capacitor C uses capacitance as the automotive grade capacitor of 25V/10000 μ F, can satisfy in -30 DEG C~55 DEG C temperature Work normally in range, find after tested it is working properly at this temperature, it is normal by 20000 durability tests, conform to It asks.

Specific embodiment of the present utility model described above does not constitute the restriction to scope of protection of the utility model. Any other various changes and modifications that any technical concept according to the present utility model is made should be included in practical In novel scope of protection of the claims.

Claims

1. it is a kind of charge pipette tips electronic lock discharge driving circuit, it is characterised in that: including single-pole double-throw relay, electronic lock, Electrolytic capacitor and counnter attack diode, after the electronic lock is connected with the electrolytic capacitor both ends be separately connected the single-pole double throw after Another stationary contact of the movable contact of electric appliance and one of stationary contact, the single-pole double-throw relay passes through two pole of counnter attack Pipe connects power supply.

2. circuit according to claim 1, it is characterised in that: the automotive grade electricity that the electrolytic capacitor is 25V/10000 μ F Hold.