CN204243733U - Based on the lithium battery protection board circuit of NTC paster thermistor element - Google Patents

Based on the lithium battery protection board circuit of NTC paster thermistor element Download PDF

Info

Publication number
CN204243733U
CN204243733U CN201420638746.0U CN201420638746U CN204243733U CN 204243733 U CN204243733 U CN 204243733U CN 201420638746 U CN201420638746 U CN 201420638746U CN 204243733 U CN204243733 U CN 204243733U
Authority
CN
China
Prior art keywords
ntc
paster
thermistor
lithium battery
protection board
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420638746.0U
Other languages
Chinese (zh)
Inventor
曾永林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHENGDU ATTA GAME TECHNOLOGY Co Ltd
Original Assignee
CHENGDU ATTA GAME TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHENGDU ATTA GAME TECHNOLOGY Co Ltd filed Critical CHENGDU ATTA GAME TECHNOLOGY Co Ltd
Priority to CN201420638746.0U priority Critical patent/CN204243733U/en
Application granted granted Critical
Publication of CN204243733U publication Critical patent/CN204243733U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Fuses (AREA)
  • Secondary Cells (AREA)

Abstract

The utility model discloses a kind of lithium battery protection board circuit based on NTC paster thermistor element, comprise charge circuit and discharge loop, also comprise BQ20Z75 type control chip, multiple Resistor-Capacitor Unit, multiple switch mosfet device and PTC thermistor, described BQ20Z75 type control chip detects cell voltage and loop current by multiple described Resistor-Capacitor Unit, and conducting and the shutoff of described charge circuit and described discharge loop is controlled by multiple described switch mosfet device, described PTC thermistor is series between multiple described Resistor-Capacitor Unit and battery, described PTC thermistor adopts NTC paster.The utility model is a kind of lithium battery protection board circuit based on NTC paster thermistor element, substitutes plug-in type NTC thermistor can save production and processing man-hour by paster NTC thermistor; There is displacement in deduction and exemption plug-in type NTC thermistor contact; There is line short in deduction and exemption; There is displacement and fracture in deduction and exemption, reduces artificial damage probability.

Description

Based on the lithium battery protection board circuit of NTC paster thermistor element
Technical field
The utility model relates to a kind of lithium battery circuit, particularly relates to a kind of lithium battery protection board circuit based on NTC paster thermistor element.
Background technology
SMT paster refers to the abbreviation carrying out the series of processes flow process of processing on pcb basis, and SMT is surface installation technique (surface mounting technology), is most popular a kind of technology and technique in current Electronic Assemblies industry.Electronic circuit surface installation technique, is called surface mount or surface mounting technology.It is that one (will be called for short SMC/SMD without pin or short leg surface-assembled components and parts, Chinese claims sheet components and parts) be arranged on printed circuit board (on the surface of surface or other substrate, by the circuit load technology of the method such as reflow welding or immersed solder in addition welding assembly.
Our electronic product is all add various electric capacity by pcb under normal conditions, and the electronic devices and components such as resistance are by the electric circuit diagram design of design, so panoramic electrical equipment needs various different smt paster processing technology to process.
------> divides plate to the attachment of > part to SMT basic technology inscape: paste solder printing in >AOI optical detection--> maintenance--in > reflow soldering.
The advantage of SMT paster processing: packaging density is high, electronic product volume is little, lightweight, the volume and weight of surface mount elements only has about 1/10 of traditional inserting element, after general employing SMT, electronic product volume-diminished 40% ~ 60%, weight saving 60% ~ 80%.Reliability is high, vibration resistance is strong.Welding point defect rate is low.High frequency characteristics is good.Decrease electromagnetism and radio frequency interference.Easily be automated, enhance productivity.Reduce costs and reach 30% ~ 50%.Save material, the energy, equipment, manpower, time etc.
Just because of the complexity of the technological process of smt paster processing, so there is the factory that a lot of smt pasters is processed, specialty has done the processing of smt paster, in Shenzhen, has benefited from the flourish of electron trade, and smt paster has just been processed into the prosperity of an industry.
In the conventional technology, PACK intelligent power Management IC temperature detection sensor NTC thermistor is manual card formula, and then thermistor contact is attached in battery core by human weld, finally fixes with heat-conducting glue.Such design is popular at present, if but be used in NTC paster lithium battery protection board circuit can be made to have more advantage when physical dimension meets.
Utility model content
The purpose of this utility model provides a kind of lithium battery protection board circuit based on NTC paster thermistor element.
The utility model is achieved through the following technical solutions:
A kind of lithium battery protection board circuit based on NTC paster thermistor element, comprise charge circuit and discharge loop, also comprise BQ20Z75 type control chip, multiple Resistor-Capacitor Unit, multiple switch mosfet device and PTC thermistor, described BQ20Z75 type control chip detects cell voltage and loop current by multiple described Resistor-Capacitor Unit, and conducting and the shutoff of described charge circuit and described discharge loop is controlled by multiple described switch mosfet device, described PTC thermistor is series between multiple described Resistor-Capacitor Unit and battery, described PTC thermistor adopts NTC paster.
Particularly, multiple described Resistor-Capacitor Unit comprises 30 resistance and 23 electric capacity.
Further, described switch mosfet device is four.
Further, described lithium battery protection board circuit also comprises four diodes, two voltage stabilizing didoes, fuse and potentiometers.
The beneficial effects of the utility model are:
The utility model is a kind of lithium battery protection board circuit based on NTC paster thermistor element, substitutes plug-in type NTC thermistor create following advantage by paster NTC thermistor:
1, production and processing man-hour is saved;
2, reduce or remit plug-in type NTC thermistor contact and occur displacement;
3, there is line short in deduction and exemption;
4, there is displacement and fracture in deduction and exemption, reduces artificial damage probability.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the utility model based on the lithium battery protection board circuit of NTC paster thermistor element.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail:
As shown in Figure 1, the utility model is a kind of lithium battery protection board circuit based on NTC paster thermistor element, comprise charge circuit and discharge loop, also comprise BQ20Z75 type control chip, multiple Resistor-Capacitor Unit, multiple switch mosfet device and PTC thermistor, described BQ20Z75 type control chip detects cell voltage and loop current by multiple described Resistor-Capacitor Unit, and conducting and the shutoff of described charge circuit and described discharge loop is controlled by multiple described switch mosfet device, described PTC thermistor is series between multiple described Resistor-Capacitor Unit and battery, described PTC thermistor adopts NTC paster.Multiple described Resistor-Capacitor Unit comprises 30 resistance and 23 electric capacity.Described switch mosfet device is four.Described lithium battery protection board circuit also comprises four diodes, two voltage stabilizing didoes, fuse and potentiometers.
Use paster NTC thermistor can realize direct SMT paster, simple traditional human weld, thus shorten the machining period of the manufacturing.Avoid plug-in type NTC thermistor contact to occur displacement, as NTC thermistor contact is displaced on heater members or surrounding, thus make managing electric quantity IC detected temperatures occur relatively large deviation, serious appearance mistake.Avoid occurring line short, as NTC thermistor supplied materials or add and occur damaged naked copper man-hour, be easy to like this be connected with some shorted devices on pcb board, be easy to like this damage pcb board or battery core, serious words have accident potential.Avoid NTC to occur fracture, as NTC thermistor supplied materials or add and occur fracture man-hour, thus cause managing electric quantity IC temperature detection error.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., be all included within protection scope of the present invention.

Claims (4)

1. the lithium battery protection board circuit based on NTC paster thermistor element, comprise charge circuit and discharge loop, it is characterized in that: also comprise BQ20Z75 type control chip, multiple Resistor-Capacitor Unit, multiple switch mosfet device and PTC thermistor, described BQ20Z75 type control chip detects cell voltage and loop current by multiple described Resistor-Capacitor Unit, and conducting and the shutoff of described charge circuit and described discharge loop is controlled by multiple described switch mosfet device, described PTC thermistor is series between multiple described Resistor-Capacitor Unit and battery, described PTC thermistor adopts NTC paster.
2. the lithium battery protection board circuit based on NTC paster thermistor element according to claim 1, is characterized in that: multiple described Resistor-Capacitor Unit comprises 30 resistance and 23 electric capacity.
3. the lithium battery protection board circuit based on NTC paster thermistor element according to claim 1, is characterized in that: described switch mosfet device is four.
4. the lithium battery protection board circuit based on NTC paster thermistor element according to claim 1, is characterized in that: described lithium battery protection board circuit also comprises four diodes, two voltage stabilizing didoes, fuse and potentiometers.
CN201420638746.0U 2014-10-30 2014-10-30 Based on the lithium battery protection board circuit of NTC paster thermistor element Expired - Fee Related CN204243733U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420638746.0U CN204243733U (en) 2014-10-30 2014-10-30 Based on the lithium battery protection board circuit of NTC paster thermistor element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420638746.0U CN204243733U (en) 2014-10-30 2014-10-30 Based on the lithium battery protection board circuit of NTC paster thermistor element

Publications (1)

Publication Number Publication Date
CN204243733U true CN204243733U (en) 2015-04-01

Family

ID=52773180

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420638746.0U Expired - Fee Related CN204243733U (en) 2014-10-30 2014-10-30 Based on the lithium battery protection board circuit of NTC paster thermistor element

Country Status (1)

Country Link
CN (1) CN204243733U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104300507A (en) * 2014-10-30 2015-01-21 成都艾塔科技有限公司 Lithium battery guard plate circuit based on NTC patch thermistor elements
CN104362597A (en) * 2014-11-20 2015-02-18 成都群侠科技有限公司 Lithium battery protection panel circuit based on NTC surface-mounted device thermistor elements

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104300507A (en) * 2014-10-30 2015-01-21 成都艾塔科技有限公司 Lithium battery guard plate circuit based on NTC patch thermistor elements
CN104362597A (en) * 2014-11-20 2015-02-18 成都群侠科技有限公司 Lithium battery protection panel circuit based on NTC surface-mounted device thermistor elements

Similar Documents

Publication Publication Date Title
KR101783161B1 (en) Mobile terminal charger
CN104885258B (en) Battery protection module encapsulates
CN203951172U (en) Lithium battery protection board circuit based on NTC paster thermistor element
CN204243733U (en) Based on the lithium battery protection board circuit of NTC paster thermistor element
CN204258277U (en) Based on the lithium battery protection board circuit of NTC paster thermistor element
JP2006344616A (en) Method for packaging solar cell glass substrate
CN104300507A (en) Lithium battery guard plate circuit based on NTC patch thermistor elements
CN102131352A (en) Method for manufacturing printed circuit board (PCB)
CN104377641A (en) Thick-film active surge suppression module
CN105277863A (en) Aging device for power amplifier
CN104362597A (en) Lithium battery protection panel circuit based on NTC surface-mounted device thermistor elements
CN206582571U (en) LED and its driving plate
CN210328192U (en) Pcba
CN207731288U (en) Radio frequency identification module
CN204470756U (en) Through-hole reflow positioning fixture
CN204029663U (en) SMD elastomer touch-switch
CN203734931U (en) Tool specially used for SMT
CN206697620U (en) Electric connection structure between pcb board built in microphone
CN203300585U (en) Surface mounting type fuse without soldering tin at ends
CN202585783U (en) Pin adapter assembly of electronic component
CN206364013U (en) A kind of LRC modular constructions
CN200941325Y (en) Surface attaching positive coefficient thermistor
CN202977034U (en) Polymeric positive temperature coefficient (PPTC) overcurrent protection element
CN204818358U (en) Device of simulation backward flow brazier holds container
CN204991472U (en) Condenser and be provided with circuit board of this condenser

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150401

Termination date: 20151030

EXPY Termination of patent right or utility model