CN209666855U - A kind of preliminary filling current limliting module - Google Patents

A kind of preliminary filling current limliting module Download PDF

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Publication number
CN209666855U
CN209666855U CN201822164520.2U CN201822164520U CN209666855U CN 209666855 U CN209666855 U CN 209666855U CN 201822164520 U CN201822164520 U CN 201822164520U CN 209666855 U CN209666855 U CN 209666855U
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China
Prior art keywords
oxide
metal
semiconductor
circuit module
resistance
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Expired - Fee Related
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CN201822164520.2U
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Chinese (zh)
Inventor
容奕
吴佳宁
王鹏
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Tianjin Feibo Technology Co Ltd
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Tianjin Feibo Technology Co Ltd
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Abstract

The utility model provides a kind of preliminary filling current limliting module, including precharging circuit module, metal-oxide-semiconductor, normal operation voltage stabilizing circuit module, control circuit module;The first parallel circuit of the precharging circuit module formation in parallel with the metal-oxide-semiconductor, one end of first parallel circuit is connected with battery pack output negative pole, the other end of first parallel circuit is connected with controller cathode, described one end for operating normally Voltage stabilizing module is connected to the source electrode of the metal-oxide-semiconductor, the other end for operating normally Voltage stabilizing module is connected to the grid of the metal-oxide-semiconductor, one end of the control circuit module is connected to the drain electrode of the metal-oxide-semiconductor, and the other end of the control circuit module is connected with electric door lock cathode.Preliminary filling current limliting module described in the utility model, can play the role of limiting starting current, prevent from causing lithium battery to terminate electric discharge since electric current is excessive, and can extend the service life of battery.

Description

A kind of preliminary filling current limliting module
Technical field
The utility model belongs to electronic circuit field, more particularly, to the preliminary filling current limliting mould in a kind of battery truck dynamical system Block.
Background technique
In the use process of battery truck, in order to protect battery controller not to be damaged in cold start-up, it usually needs right Controller capacitor is pre-charged.At present frequently be that lithium battery is filled in the methods of conventional constant current, constant pressure, trickle Electricity, there is no one to be slowly effectively pre-charged mode.But in actual use, due to electric machine controller start-up capacitance It designs unreasonable, causes pre-charge current excessive, lithium battery and electric machine controller are produced so as to cause the high current of starting moment Raw impact, may cause lithium battery protection board starting protection state, terminates electric discharge, or even reduce lithium battery cycle life, accelerates Aging, and generate irreversible damage.
Summary of the invention
In view of this, the utility model is directed to a kind of preliminary filling current limliting module, installed additional in the major loop on electric vehicle This module can play the role of limiting starting current, prevent the lithium battery due to caused by electric current is excessive from terminating electric discharge, and The service life of battery can be extended.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of preliminary filling current limliting module, including precharging circuit module, metal-oxide-semiconductor, normal operation voltage stabilizing circuit module, control circuit Module;The first parallel circuit of the precharging circuit module formation in parallel with the metal-oxide-semiconductor, one end of first parallel circuit with Battery pack output negative pole is connected, and the other end of first parallel circuit is connected with controller cathode, the normal operation pressure stabilizing One end of module is connected to the source electrode of the metal-oxide-semiconductor, and the other end for operating normally Voltage stabilizing module is connected to the metal-oxide-semiconductor Grid, one end of the control circuit module are connected to the drain electrode of the metal-oxide-semiconductor, the other end and electricity of the control circuit module Door lock cathode is connected.
Further, the precharging circuit module includes the first metal-oxide-semiconductor and current-limiting resistance, the source electrode of the first MOS pipe It is connected with the battery pack output negative pole, the drain electrode of first metal-oxide-semiconductor is connected with one end of the current-limiting resistance, the current limliting The other end of resistance is connected with the controller cathode, and the grid of the first MOS pipe is connected with the electric door lock cathode.
Further, the metal-oxide-semiconductor is that multiple metal-oxide-semiconductors are in parallel.
Further, the normal operation voltage stabilizing circuit module is made of the first zener diode, first resistor and capacitor, First zener diode, first resistor and capacitor are parallel connection.
Further, the control circuit module is by first diode, third diode, triode, second resistance, third Resistance and the 4th resistance are constituted;The emitter of the triode is connected with the cathode of the first diode, the one or two pole The anode of pipe is connected with the grid of the metal-oxide-semiconductor, and the collector of the triode passes through the second resistance and the metal-oxide-semiconductor Grid is connected, and the base stage of the triode is connected by the 4th resistance with the anode of the third diode, the third The cathode of diode is connected with the drain electrode of the metal-oxide-semiconductor, and the base stage of the triode passes through the 3rd resistor and electric switch simultaneously Cathode is locked to be connected.
Further, a kind of preliminary filling current limliting module further includes preliminary filling voltage stabilizing circuit module, the preliminary filling Voltage stabilizing module It is made of the 7th resistance and the second diode, the 7th resistance and the second zener diode are in parallel, two pole of the second pressure stabilizing The anode of pipe is connected with the source electrode of first metal-oxide-semiconductor, the grid of the cathode of second zener diode and first metal-oxide-semiconductor Extremely it is connected, the both ends of the preliminary filling voltage stabilizing circuit module are connected with the source electrode of first metal-oxide-semiconductor and grid respectively.
Further, a kind of preliminary filling current limliting module further includes that the 5th resistance, the 6th resistance and the second diode are constituted, One end of 5th resistance is connected with electric door lock cathode, and the other end is connected with the source electrode of the first MOS pipe, and the described 6th Resistance and the second diodes in parallel form the second parallel circuit, the grid of the anode and first metal-oxide-semiconductor of second diode Extremely it is connected, the cathode of second diode is connected with the electric door lock cathode.
Compared with the existing technology, a kind of preliminary filling current limliting module described in the utility model has the advantage that
(1) current-limiting resistance, Ke Yigen be joined in precharging circuit module in preliminary filling current limliting module described in the utility model According to the size for needing to select current-limiting resistance resistance value, limiting starting current can be played the role of by the current-limiting resistance, prevent by It is excessive in electric current and cause lithium battery terminate electric discharge.
(2) precharging circuit module described in the utility model is in parallel with metal-oxide-semiconductor, when metal-oxide-semiconductor reaches cut-in voltage conducting, Precharging circuit module is short-circuited, and the capacitor of controller has passed through precharging circuit module and filled a part of electricity at this time, therefore works as When metal-oxide-semiconductor starts to operate normally, controller will not cause to damage because cold start-up electric current is excessive.
(3) metal-oxide-semiconductor described in the utility model is that multiple metal-oxide-semiconductors are in parallel, can adjust MOS according to real work electric current The quantity of pipe, it is convenient, flexible, practical.
(4) the utility model main working parts be metal-oxide-semiconductor, when a failure occurs substantially can by replacement metal-oxide-semiconductor come It solves, easy to maintain, strong operability.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.In In attached drawing:
Fig. 1 is preliminary filling current limliting modular circuit schematic diagram described in the utility model embodiment.
Description of symbols:
1- current-limiting circuit module;2-MOS pipe;3- operates normally voltage stabilizing circuit module;4- control circuit module;5- preliminary filling is steady Volt circuit module;The first metal-oxide-semiconductor of M1-;RO- current-limiting resistance;R1- first resistor;R2- second resistance;R3- 3rd resistor;R4- 4th resistance;The 5th resistance of R5-;The 6th resistance of R6-;The 7th resistance of R7-;The first zener diode of ZD1-;The second pressure stabilizing of ZD2- Diode;VD1- first diode;The second diode of VD2-;VD3- third diode;V4- triode;C1- capacitor;B-- battery Packet output negative pole;P-- controller cathode;SW-B- electric door lock cathode.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can To be combined with each other.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower", The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand For limitations of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result, Feature can explicitly or implicitly include one or more of the features.It is in the description of the present invention, unless another It is described, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection;It can be mechanical connection, be also possible to be electrically connected;Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition State the concrete meaning of term in the present invention.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
A kind of preliminary filling current limliting module as shown in Figure 1, including precharging circuit module 1, metal-oxide-semiconductor 2 operate normally voltage regulator circuit mould Block 3, control circuit module 4;Precharging circuit module 1 with operate normally first parallel circuit of the formation in parallel of circuit module 2, first One end of parallel circuit is connected with battery pack output negative pole B-, and the other end of the first parallel circuit is connected with controller cathode P-. When metal-oxide-semiconductor 2 reaches cut-in voltage conducting, precharging circuit module 1 is short-circuited, and the capacitor of controller has passed through preliminary filling at this time Circuit module 1 has filled a part of electricity, therefore when metal-oxide-semiconductor 2 brings into operation, and controller will not cause because cold start-up electric current is excessive Damage.
The one end for operating normally Voltage stabilizing module 3 is connected to the source electrode of metal-oxide-semiconductor 2, operates normally the other end of Voltage stabilizing module 3 Be connected to the grid of metal-oxide-semiconductor 2, one end of control circuit module 4 is connected to the drain electrode of metal-oxide-semiconductor 2, control circuit module 4 it is another End is connected with electric door lock cathode SW-B.
Metal-oxide-semiconductor 2 is that multiple metal-oxide-semiconductors are in parallel, can adjust the quantity of metal-oxide-semiconductor according to real work electric current, convenient, flexible, It is practical.The main working parts of this preliminary filling current limliting module are metal-oxide-semiconductor, when a failure occurs substantially can be by replacing MOS Pipe solves, easy to maintain, strong operability.
Source electrode and battery pack of the precharging circuit module 1 including the first metal-oxide-semiconductor M1 and current-limiting resistance RO, the first metal-oxide-semiconductor M1 are defeated Out cathode B- be connected, the drain electrode of the first metal-oxide-semiconductor M1 is connected with one end of current-limiting resistance RO, the other end of current-limiting resistance RO with it is described Controller cathode P- is connected.It joined current-limiting resistance, can according to need the size of selection current-limiting resistance resistance value, pass through the current limliting Resistance can play the role of limiting starting current, prevent from causing lithium battery to terminate electric discharge since electric current is excessive.
It operates normally voltage stabilizing circuit module 3 to be made of the first zener diode ZD1, first resistor R1 and capacitor C1, first Zener diode ZD1, first resistor R1 and capacitor C1 are parallel connection.
Control circuit module 4 is by first diode VD1, third diode VD3, triode V4, second resistance R2, third electricity R3 and the 4th resistance R4 is hindered to constitute;The emitter of triode V4 is connected with the cathode of first diode VD1, first diode VD1 Anode be connected with the grid of metal-oxide-semiconductor 2, the collector of triode V4 passes through second resistance R2 and is connected with the grid of metal-oxide-semiconductor 2, three The base stage of pole pipe V4 is connected by the 4th resistance R4 with the anode of third diode VD3, the cathode and MOS of third diode VD3 The drain electrode of pipe 2 is connected, and the base stage of triode V4 passes through 3rd resistor R3 simultaneously and is connected with electric door lock cathode SW-B.
The preliminary filling current limliting module further includes preliminary filling voltage stabilizing circuit module, and preliminary filling Voltage stabilizing module 5 is by the 7th resistance R7 and Two diode VD2 are constituted, and the 7th resistance R7 and the second zener diode ZD2 are in parallel, the anode of the second zener diode ZD2 and the The source electrode of one metal-oxide-semiconductor M1 is connected, and the cathode of the second zener diode ZD2 is connected with the grid of the first metal-oxide-semiconductor M1, preliminary filling pressure stabilizing The both ends of circuit module 5 are connected with the source electrode of the first metal-oxide-semiconductor M1 and grid respectively.
The preliminary filling current limliting module further includes that the 5th resistance R5, the 6th resistance R6 and the second diode VD2 are constituted, and the 5th One end of resistance R5 is connected with electric door lock cathode SW-B, and the other end is connected with the source electrode of the first MOS pipe M1, the 6th resistance R6 and the second diode VD2 parallel connection form the second parallel circuit, anode and first metal-oxide-semiconductor of the second diode VD2 The grid of M1 is connected, and the cathode of the second diode VD2 is connected with the electric door lock cathode SW-B, second parallel circuit One end be connected with electric door lock cathode SW-B, the grid phase of the other end of second parallel circuit and the first metal-oxide-semiconductor M1 Even.
Specific embodiment: as shown in Figure 1, a kind of preliminary filling current module, B- connection battery pack output negative pole main line, P- connect Controller cathode is connect, entire module is serially connected in major loop.During starting electric car, key controller electric door lock cathode SW- B is connected to anode with electric door lock cathode SW-B, and vehicle powers at this time.First metal-oxide-semiconductor M1 grid of precharging circuit module 1 Pin is connected to the end electric door lock cathode SW-B by preliminary filling voltage stabilizing circuit module 5, the 6th resistance R6, and metal-oxide-semiconductor M1 grid connects at this time It connects on battery pack anode, is high level state, shows as being connected, electric current is by current-limiting resistance RO by the first metal-oxide-semiconductor M1 The precharge of controller capacitor.
Before vehicle powers on, the initial quantity of electricity for operating normally the capacitor C1 of voltage regulator circuit 3 is 0, the grid voltage of metal-oxide-semiconductor 2 It is 0, shows as off state.After vehicle powers on, electric current is shunted after the 5th resistance R5 by the second pressure stabilizing two in parallel Collaborate after pole pipe ZD1, first resistor R1, capacitor C1, the electric current behind interflow is divided into two, and first shunts by first diode The emitter and 3rd resistor of triode V4 are flowed to after VD1 respectively, another shunting flows to triode after second resistance R2 The collector of V4, the electric current interflow flowed out from 3rd resistor R3, the emitter of triode V4 and collector is by the 4th resistance The drain electrode of metal-oxide-semiconductor 2 is flowed into after R4, third diode VD3.At this point, metal-oxide-semiconductor charges, and over time, about 10-20ms Afterwards, as capacitor C1 charges, voltage is gradually risen, until reaching the cut-in voltage of metal-oxide-semiconductor 2, then metal-oxide-semiconductor 2 is connected.
When metal-oxide-semiconductor 2 is connected, precharging circuit module 1 almost no longer passes through electric current, therefore controller by 2 short circuit of metal-oxide-semiconductor Precharge terminate.Whole electric currents of major loop flow through metal-oxide-semiconductor 2 from battery pack output negative pole B- and reach controller cathode P-, reach To normal operating conditions.
Metal-oxide-semiconductor 2 is that multiple metal-oxide-semiconductors are in parallel, adjusts metal-oxide-semiconductor quantity according to real work electric current, adjustable rated current, It is also noted that the connecting line for selecting suitable line footpath, the battery pack end output negative pole B- and the end controller cathode P- are due in major loop In, overcurrent is larger, selects thicker power line, and electric door lock cathode SW-B only plays at end control action, overcurrent very little, using logical Believe line.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model Protection scope within.

Claims (7)

1. a kind of preliminary filling current limliting module, it is characterised in that: including precharging circuit module (1), metal-oxide-semiconductor (2), operate normally pressure stabilizing electricity Road module (3), control circuit module (4);The precharging circuit module (1) is in parallel with the metal-oxide-semiconductor (2) to form the first electricity in parallel The one end on road, first parallel circuit is connected with battery pack output negative pole (B-), the other end of first parallel circuit with Controller cathode (P-) is connected, and described one end for operating normally voltage stabilizing circuit module (3) is connected to the source electrode of the metal-oxide-semiconductor (2), The other end for operating normally voltage stabilizing circuit module (3) is connected to the grid of the metal-oxide-semiconductor (2), the control circuit module (4) one end is connected to the drain electrode of the metal-oxide-semiconductor (2), the other end and electric door lock cathode (SW- of the control circuit module (4) B) it is connected.
2. a kind of preliminary filling current limliting module according to claim 1, it is characterised in that: the precharging circuit module (1) includes First metal-oxide-semiconductor (M1) and current-limiting resistance (RO), the source electrode of first metal-oxide-semiconductor (M1) and battery pack output negative pole (B-) phase Even, the drain electrode of first metal-oxide-semiconductor (M1) connects with one end of the current-limiting resistance (RO), the current-limiting resistance (RO) it is another End is connected with the controller cathode (P-), and the grid of first metal-oxide-semiconductor (M1) is connected with the electric door lock cathode (SW-B).
3. a kind of preliminary filling current limliting module according to claim 1, it is characterised in that: the metal-oxide-semiconductor (2) is multiple metal-oxide-semiconductors It is in parallel.
4. a kind of preliminary filling current limliting module according to claim 1, it is characterised in that: the normal operation voltage stabilizing circuit module (3) it is made of the first zener diode (ZD1), first resistor (R1) and capacitor (C1), first zener diode (ZD1), First resistor (R1) and capacitor (C1) are parallel connection.
5. a kind of preliminary filling current limliting module according to claim 1, it is characterised in that: the control circuit module (4) is by One diode (VD1), third diode (VD3), triode (V4), second resistance (R2), 3rd resistor (R3) and the 4th resistance (R4) it constitutes;The emitter of the triode (V4) is connected with the cathode of the first diode (VD1), the first diode (VD1) anode is connected with the grid of the metal-oxide-semiconductor (2), and the collector of the triode (V4) passes through the second resistance (R2) it is connected with the grid of the metal-oxide-semiconductor (2), the base stage of the triode (V4) passes through the 4th resistance (R4) and described the The anode of three diodes (VD3) is connected, and the cathode of the third diode (VD3) is connected with the drain electrode of the metal-oxide-semiconductor (2), institute It states the base stage of triode (V4) while being connected by the 3rd resistor (R3) with electric door lock cathode (SW-B).
6. a kind of preliminary filling current limliting module according to claim 2, it is characterised in that: further include preliminary filling voltage stabilizing circuit module (5), the preliminary filling voltage stabilizing circuit module (5) is made of the 7th resistance (R7) and the second diode (VD2), the 7th resistance (R7) and the second zener diode (ZD2) is in parallel, anode and first metal-oxide-semiconductor of second zener diode (ZD2) (M1) source electrode is connected, and the cathode of second zener diode (ZD2) is connected with the grid of first metal-oxide-semiconductor (M1), institute The both ends for stating preliminary filling voltage stabilizing circuit module (5) are connected with the source electrode of first metal-oxide-semiconductor (M1) and grid respectively.
7. a kind of preliminary filling current limliting module according to claim 2, it is characterised in that: further include the 5th resistance (R5), the 6th Resistance (R6) and the second diode (VD2) are constituted, and one end of the 5th resistance (R5) is connected with electric door lock cathode (SW-B), separately One end is connected with the source electrode of first metal-oxide-semiconductor (M1), and the 6th resistance (R6) and the second diode (VD2) be in parallel to form the The anode of two parallel circuits, second diode (VD2) is connected with the grid of first metal-oxide-semiconductor (M1), and the described 2nd 2 The cathode of pole pipe (VD2) is connected with the electric door lock cathode (SW-B).
CN201822164520.2U 2018-12-20 2018-12-20 A kind of preliminary filling current limliting module Expired - Fee Related CN209666855U (en)

Priority Applications (1)

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CN201822164520.2U CN209666855U (en) 2018-12-20 2018-12-20 A kind of preliminary filling current limliting module

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Application Number Priority Date Filing Date Title
CN201822164520.2U CN209666855U (en) 2018-12-20 2018-12-20 A kind of preliminary filling current limliting module

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CN209666855U true CN209666855U (en) 2019-11-22

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112026522A (en) * 2020-08-20 2020-12-04 吴江绿控电控科技有限公司 Power supply circuit with automatic pre-charging function

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112026522A (en) * 2020-08-20 2020-12-04 吴江绿控电控科技有限公司 Power supply circuit with automatic pre-charging function
CN112026522B (en) * 2020-08-20 2024-03-29 吴江绿控电控科技有限公司 Power supply circuit with automatic precharge function

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Granted publication date: 20191122

Termination date: 20211220