CN204391208U - A kind of novel electric vehicle Li ion cells unit - Google Patents
A kind of novel electric vehicle Li ion cells unit Download PDFInfo
- Publication number
- CN204391208U CN204391208U CN201520024825.7U CN201520024825U CN204391208U CN 204391208 U CN204391208 U CN 204391208U CN 201520024825 U CN201520024825 U CN 201520024825U CN 204391208 U CN204391208 U CN 204391208U
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- CN
- China
- Prior art keywords
- electronic circuit
- oxide semiconductor
- effect transistor
- circuit board
- semiconductor field
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- 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.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model discloses a kind of novel electric vehicle Li ion cells unit; comprise shell, binding post, electronic circuit board; the rightabout two ends of upper surface that two described binding posts are arranged at shell, the electronic circuit board of protection cell apparatus voltage to be fixed between positive terminal and negative terminal and to connect positive terminal and negative terminal.Electronic circuit intralamellar part comprises Metal-Oxide Semiconductor field-effect transistor (MOSFET), overvoltage protection logic gates; Metal-Oxide Semiconductor field-effect transistor directly connects the both positive and negative polarity of lithium ionic cell unit without resistor, and multiple Metal-Oxide Semiconductor field-effect transistor is parallel-connected to overvoltage protection logic gates.Metal-Oxide Semiconductor field-effect transistor is directly connected lithium iron cell element by the utility model, avoids the power resistor using price high, reduces the price of cell apparatus excess voltage protection, simultaneously volume-diminished.
Description
Technical field
The utility model relates to field of lithium ion battery, what be specifically related to is a kind of novel electric vehicle Li ion cells unit.
Background technology
The little battery component of lightweight, self discharge is the desirable energy source of electric automobile.The battery component that multiple battery single-piece of connecting forms can provide enough voltage and electricity to drive electric automobile during traveling.What have business potential most in the middle of all battery varieties is lithium ion battery.Owing to realizing powerful discharge and recharge in the lithium ion battery short time the same as other batteries; overcharge so need to arrange protective circuit in actual use to prevent battery component; avoid lithium ion battery to overcharge and cause battery overheated, battery permanent damage.Generally, control circui charging current as the isolating switches such as Metal-Oxide Semiconductor field-effect transistor (MOSFET) and resistor is installed in battery component, but this circuit price is very expensive, and volume is comparatively large, occupies the space of battery component.
Utility model content
For the problems referred to above; the purpose of this utility model is to provide a kind of novel electric vehicle Li ion cells unit; solve current lithium ion battery of electric automobile device excess voltage protection expensive, and volume is large, occupies the technical problem in a large amount of cell apparatus space.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is, a kind of novel electric vehicle Li ion cells unit, comprises the shell of lightweight, binding post, electronic circuit board, battery component.
Two binding posts, positive terminal and negative terminal, be arranged at the rightabout two ends of upper surface of shell.Described electronic circuit board to be fixed between positive terminal and negative terminal and to connect positive terminal and negative terminal.Electronic circuit in electronic circuit board can the charge capacity of balancing battery device internal cell components, prevents battery component from overcharging simultaneously.
Described binding post is made up of conductive and heat-conductive metal, comprises internal whorl, external screw-thread.Internal whorl is located at the binding post inner surface of hollow, by the miscellaneous part of plain conductor connecting electric automobile.Described external screw-thread is located at the outer surface of binding post one end.The inner surface of binding post and outer surface are respectively equipped with packing ring, assist binding post to be fixed on shell, and closure, prevent moisture from entering cell apparatus inside.Rightabout two the side millings in one end that binding post is provided with external screw-thread form two planes, are fixed by binding post during for reversing.
The syndeton forming coupling binding post external screw-thread is dug down at described electronic circuit board two ends respectively.The external screw-thread precession syndeton of binding post, is fixed on binding post on electronic circuit board.Electronic circuit board surface is also provided with heat conductive pad.
The battery component of enclosure comprises multiple lithium ionic cell unit, the arranged in parallel and formation battery component that is cascaded of described lithium ionic cell unit.The positive pole of battery component connects the basal surface of electronic circuit board by plain conductor, be indirectly connected to positive terminal.The negative pole of battery component connects the basal surface of electronic circuit board by plain conductor, be indirectly connected to negative terminal.
Electronic circuit intralamellar part comprises Metal-Oxide Semiconductor field-effect transistor (MOSFET), overvoltage protection logic gates, and a Metal-Oxide Semiconductor field-effect transistor directly connects positive pole and the negative pole of a lithium ionic cell unit without resistor.Multiple Metal-Oxide Semiconductor field-effect transistor is parallel-connected to overvoltage protection logic gates.
When the voltage of lithium ionic cell unit and adjacent lithium ionic cell unit voltage are compared disproportionately high, or the maximum working voltage that the voltage of lithium ionic cell unit designs higher than lithium ionic cell unit, overvoltage protection logic gates promotes the trigger voltage of Metal-Oxide Semiconductor field-effect transistor to specific threshold value, now Metal-Oxide Semiconductor field-effect transistor becomes triode mode, resistance significantly improves, electric current flows to Metal-Oxide Semiconductor field-effect transistor from anode binding post, and flow out from negative terminal, unnecessary electricity distributes with the form of heat.One-tenth according to lost units of heat was calculated originally, and the price of Metal-Oxide Semiconductor field-effect transistor is low compared with the price of power resistor, and more economical.
Metal-Oxide Semiconductor field-effect transistor is arranged on described heat conductive pad made of copper, and described heat conductive pad extends to the electronic circuit board one end near syndeton always from the bottom of Metal-Oxide Semiconductor field-effect transistor.The heat conduction of Metal-Oxide Semiconductor field-effect transistor to one end of electronic circuit board, is then conducted to external environment condition by binding post by the heat transfer pipe in described heat conductive pad.And Metal-Oxide Semiconductor field-effect transistor also can produce heat preheating battery component, battery component can be used under extreme weather.
The two ends of described shell are provided with end cap, and described end cap is separable, expose cell apparatus internal structure, are connected with adjacent cell apparatus, increase length or the height of cell apparatus originally.End cover designs becomes hollow structure, whereby weight reduction.Be provided with T-shaped component above described end cap, connect two cell apparatus.
Metal-Oxide Semiconductor field-effect transistor is directly connected lithium iron cell element by the utility model, avoids the power resistor using price high, limitedly reduces the price of battery device for electric vehicle excess voltage protection, simultaneously volume-diminished.
Accompanying drawing explanation
Fig. 1 is a kind of novel electric vehicle Li ion cells unit cross-sectional structure schematic diagram.
Wherein: 100, cell apparatus, 200, binding post, 300, shell, 400, electronic circuit board, 500, battery component.
Fig. 2 is a kind of structural representation of novel electric vehicle Li ion cells unit binding post.
Wherein: 210, packing ring, 220, plane, 230, external screw-thread, 250, internal whorl.
Fig. 3 is a kind of novel electric vehicle Li ion cells unit electronic circuit board schematic appearance.
Wherein: 410, syndeton, 420, heat conductive pad.
Fig. 4 is a kind of novel electric vehicle Li ion cells unit electronic circuit board structural representation.
Wherein: 430, Metal-Oxide Semiconductor field-effect transistor, 440, overvoltage protection logic gates, 510, lithium ionic cell unit.
Fig. 5 is a kind of novel electric vehicle Li ion cells unit schematic appearance.
Wherein: 600, end cap, 610, T-shaped component.
Embodiment
Below in conjunction with specific embodiment, the utility model is described in further detail.
A kind of novel electric vehicle Li ion cells unit, comprises the shell 300 of lightweight, binding post 200, electronic circuit board 400, battery component 500.
Consult Fig. 1, two binding posts 200, positive terminal and negative terminal are arranged at the rightabout two ends of upper surface of shell 300.Described electronic circuit board 400 to be fixed between positive terminal and negative terminal and to connect positive terminal and negative terminal.Electronic circuit in electronic circuit board 400 can the charge capacity of balancing battery device 100 internal cell components, prevents battery component 500 from overcharging simultaneously.Battery component 500 comprises multiple lithium ionic cell unit 510, described lithium ionic cell unit 510 arranged in parallel and be cascaded formed battery component 500.The positive pole of battery component 500 connects the basal surface of electronic circuit board 400 by plain conductor, be indirectly connected to positive terminal.The negative pole of battery component 500 connects the basal surface of electronic circuit board 400 by plain conductor, be indirectly connected to negative terminal.
Consult Fig. 2, described binding post 200 is made up of conductive and heat-conductive metal, comprises internal whorl 250, external screw-thread 230.Internal whorl 250 is located at binding post 200 inner surface of hollow, by the miscellaneous part of plain conductor connecting electric automobile.Described external screw-thread 230 is located at the outer surface of binding post 200 one end.The inner surface of binding post 200 and outer surface are respectively equipped with packing ring 210, assist binding post 200 to be fixed on shell 300, and closure 300, prevent moisture from entering cell apparatus 100 inner.Rightabout two the side millings in one end that binding post 200 is provided with external screw-thread 230 form two planes 220, are fixed by binding post 200 during for reversing.
Consult Fig. 3, the syndeton 410 forming coupling binding post 400 external screw-thread 230 is dug down at described electronic circuit board 400 two ends respectively.The external screw-thread 230 precession syndeton 410 of binding post 200, is fixed on binding post 200 on electronic circuit board 400.Electronic circuit board 400 surface is also provided with heat conductive pad 420.
Consult Fig. 4; electronic circuit board 400 inside comprises Metal-Oxide Semiconductor field-effect transistor 430 (MOSFET), overvoltage protection logic gates 440, Metal-Oxide Semiconductor field-effect transistor 430 directly connects a lithium ionic cell unit 510 without resistor positive pole and negative pole.Multiple Metal-Oxide Semiconductor field-effect transistor 430 is parallel-connected to overvoltage protection logic gates 440.
When the voltage of lithium ionic cell unit 510 and adjacent lithium ionic cell unit 510 voltage are compared disproportionately high, or the maximum working voltage that the voltage of lithium ionic cell unit 510 designs higher than lithium ionic cell unit 510, overvoltage protection logic gates 440 promotes the trigger voltage of Metal-Oxide Semiconductor field-effect transistor 430 to specific threshold value, now Metal-Oxide Semiconductor field-effect transistor 430 becomes triode mode, resistance significantly improves, electric current flows to Metal-Oxide Semiconductor field-effect transistor 430 from anode binding post, and flow out from negative terminal, unnecessary electricity distributes with the form of heat.One-tenth according to lost units of heat was calculated originally, and the price of Metal-Oxide Semiconductor field-effect transistor 430 is low compared with the price of power resistor, and more economical.
Metal-Oxide Semiconductor field-effect transistor 430 is arranged on described heat conductive pad made of copper 420, and described heat conductive pad 420 extends to electronic circuit board 400 one end near syndeton 410 always from the bottom of Metal-Oxide Semiconductor field-effect transistor 430.The heat conduction of Metal-Oxide Semiconductor field-effect transistor 430 to one end of electronic circuit board 400, is then conducted to external environment condition by binding post 200 by the heat transfer pipe in described heat conductive pad 420.And Metal-Oxide Semiconductor field-effect transistor 430 also can produce heat preheating battery component 500, battery component 500 can be used under extreme weather.
Consult Fig. 5, the two ends of described shell 300 are provided with end cap 600, and described end cap 600 is separable, expose cell apparatus 100 internal structure, are connected with adjacent cell apparatus 100, increase length or the height of cell apparatus 100 originally.End cap 600 is designed to hollow structure, whereby weight reduction.Be provided with T-shaped component 610 above described end cap 600, connect two cell apparatus 100.
Claims (2)
1. a novel electric vehicle Li ion cells unit, comprise the battery component that multiple lithium ionic cell unit is in series, characterized by further comprising shell, binding post, electronic circuit board, two described binding posts, positive terminal and negative terminal, be arranged at the rightabout two ends of upper surface of shell, the electronic circuit board of protection cell apparatus voltage to be fixed between positive terminal and negative terminal and to connect positive terminal and negative terminal, described binding post comprises internal whorl, external screw-thread, internal whorl is located at the binding post inner surface of hollow, described external screw-thread is located at the outer surface of binding post one end, the inner surface of binding post and outer surface are respectively equipped with packing ring, rightabout two the side millings in one end that binding post is provided with external screw-thread form two planes, the syndeton forming coupling binding post external screw-thread is dug down at the two ends of the upper surface of described electronic circuit board respectively, electronic circuit board surface is also provided with heat conductive pad, the positive pole of battery component connects the basal surface of electronic circuit board by plain conductor, the negative pole of battery component connects the basal surface of electronic circuit board by plain conductor, electronic circuit intralamellar part comprises Metal-Oxide Semiconductor field-effect transistor, overvoltage protection logic gates, a Metal-Oxide Semiconductor field-effect transistor directly connects positive pole and the negative pole of a lithium ionic cell unit without resistor, multiple Metal-Oxide Semiconductor field-effect transistor is parallel-connected to overvoltage protection logic gates, Metal-Oxide Semiconductor field-effect transistor is arranged on described heat conductive pad upper surface, described heat conductive pad extends to the electronic circuit board one end near syndeton always from the bottom of Metal-Oxide Semiconductor field-effect transistor.
2. a kind of novel electric vehicle Li ion cells unit according to claim 1, it is characterized in that the two ends of described shell are provided with the separable end cap of hollow structure, expose cell apparatus internal structure, be connected with adjacent cell apparatus, above described end cap, be provided with the T-shaped component of connection two cell apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520024825.7U CN204391208U (en) | 2015-01-14 | 2015-01-14 | A kind of novel electric vehicle Li ion cells unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520024825.7U CN204391208U (en) | 2015-01-14 | 2015-01-14 | A kind of novel electric vehicle Li ion cells unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204391208U true CN204391208U (en) | 2015-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520024825.7U Expired - Fee Related CN204391208U (en) | 2015-01-14 | 2015-01-14 | A kind of novel electric vehicle Li ion cells unit |
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| Country | Link |
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| CN (1) | CN204391208U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109962308A (en) * | 2017-12-25 | 2019-07-02 | 丰田自动车株式会社 | The control method of secondary battery system and secondary cell |
-
2015
- 2015-01-14 CN CN201520024825.7U patent/CN204391208U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109962308A (en) * | 2017-12-25 | 2019-07-02 | 丰田自动车株式会社 | The control method of secondary battery system and secondary cell |
| CN109962308B (en) * | 2017-12-25 | 2022-04-08 | 丰田自动车株式会社 | Secondary battery system and control method of secondary battery |
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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: 20150610 Termination date: 20160114 |