CN202565575U - Lithium battery pack protector - Google Patents
Lithium battery pack protector Download PDFInfo
- Publication number
- CN202565575U CN202565575U CN2012201548062U CN201220154806U CN202565575U CN 202565575 U CN202565575 U CN 202565575U CN 2012201548062 U CN2012201548062 U CN 2012201548062U CN 201220154806 U CN201220154806 U CN 201220154806U CN 202565575 U CN202565575 U CN 202565575U
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- CN
- China
- Prior art keywords
- lithium battery
- control circuit
- circuit
- copper
- aforementioned
- 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
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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
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Abstract
The utility model relates to a battery (pack) device of an electric tool, an electric motorcycle and an electric bicycle in a lithium battery (pack) power supply system, and particularly relates to a lithium battery pack protector. The lithium battery pack protector comprises a circuit board of a control circuit and a cooling board made by at least a copper-applied aluminum substrate or a copper-applied copper substrate. A printed circuit is provided on the cooling board. Power elements which emit heat in the control circuit are arranged on the printed circuit. The power elements are electrically connected with the corresponding part of the control circuit in the above mentioned circuit board. The above mentioned circuit board is fixedly connected with the cooling board through a supporting column with a gap. The lithium battery pack protector has the advantages of the structure is simple, an MOSFET switch tube and an equalizing resistor are not likely to be damaged and fall off, the cooling effect is good, and the service life and the production efficiency of the product can be improved.
Description
Technical field
The utility model relates to electric tool, the battery-operated motor cycle of a kind of lithium battery (group) electric power system, battery (group) device of electric bicycle, particularly a kind of lithium battery group protector.
Background technology
In dynamic lithium battery (group) protector of the electric tool of lithium battery (group) electric power system, battery-operated motor cycle, electric bicycle; Charging and discharge switch pipe MOSFET are arranged on its control circuit board; They have the heating phenomenon in discharge or charging process middle part, especially insert heavy load, promptly during heavy-current discharge; The caloric value of switch mosfet pipe can be very big, can be because of the too high damage that causes the switch mosfet pipe of temperature of heating; And in the multiple batteries series connection is used, for making every batteries electric voltage equalization, in control circuit; Usually can adopt the balanced mode of resistance, during owing to the resistance equilibrium, the caloric value of this equalizing resistance is bigger; Also can increase the temperature rise of protector, reduce the protection effect and the reliability of this protector.At present; Yin Wendu is not too high damages for protection switch mosfet pipe; All need install an aluminium sheet additional or copper coin dispels the heat for the switch mosfet pipe, its common way is through screw the switch mosfet pipe to be fixed on the heat-dissipating aluminium plate, between the fin of switch mosfet pipe and aluminium sheet, adds a killinite as electric insulation; In with the screw fixation process: to the torsion of screw too conference the switch mosfet pipe is produced mechanical failure; The too little meeting of torsion makes and contacts badly between switch mosfet pipe and the heat-dissipating aluminium plate, thermal resistance is increased, simultaneously because battery pack in use has certain vibration; Can further cause screw loosening or come off; In addition because the adstante febre of switch mosfet pipe is inconsistent with the thermal coefficient of expansion of screw, also can cause screw to become flexible or come off, heating panel will reduce the radiating effect of switch mosfet pipe greatly.Equalizing resistance is carried out auxiliary heat dissipation; Usually way is through the insulation rubber cushion equalizing resistance to be linked to each other with heat-dissipating aluminium plate; The problem that this method exists mainly is that insulation rubber cushion thermal resistance is bigger; Can not well the heat transferred on the equalizing resistance be gone out, thereby cause the heat on the equalizing resistance to can not get release and cause damage.
Summary of the invention
The purpose of the utility model is to overcoming the deficiency of prior art, and a kind of lithium battery group protector is provided, and it is simple in structure, switch mosfet pipe and equalizing resistance not fragile with come off, good heat dissipation effect improves useful life.
The utility model is the deficiency that overcomes prior art; Adopted following technical scheme: a kind of lithium battery group protector; The circuit board that comprises control circuit; It is characterized in that having at least the heating panel of a deposited copper aluminium base or deposited copper copper base formation, on this heating panel, printed circuit is arranged, be equiped with the power component of the heating in the control circuit on this printed circuit; The control circuit corresponding position is electrically connected in this power component and the aforementioned circuit plate, and aforesaid circuit board and described heating panel have being connected of space through support column.
The power component of the heating in the aforementioned control circuit includes switch mosfet pipe and equalizing resistance.
The aforementioned power element is connected with printed circuit on the heating panel through SMT paster mode.
The aforementioned power element is through lead or connect that the control circuit corresponding position is electrically connected in row's pin and the aforementioned circuit plate.
The lithium battery group protector that provides by the utility model, owing to adopt at least one by applying the heating panel that copper aluminium base or deposited copper copper base constitute, this heating panel is composited by aluminium base or copper base and glass copper-clad plate; Can print required circuit in the glass copper-clad plate; With the heating power element in the control circuit, like switch mosfet pipe and equalizing resistance, adopt paster technique (SMT) with their Surface Mounts on heating panel; With lead or connect that the control circuit corresponding position is electrically connected in row's pin and the circuit board; Not only can solve because of beating the various hidden danger that screw brings, all heating power elements all directly are fixed on the heating panel that applies copper aluminium base or deposited copper copper base formation simultaneously, and control circuit is placed on another piece circuit board; Heater element and control circuit are realized separately layout like this; Be beneficial to the heat radiation of heater element, reduce temperature rise, improve the performance of the protector that variations in temperature causes.The utility model is simple in structure, switch mosfet pipe and equalizing resistance not fragile with come off, good heat dissipation effect has improved the useful life and the production efficiency of product.
Description of drawings
The utility model said structure can further specify through the indefiniteness embodiment that accompanying drawing provided.
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the circuit board sketch map of control circuit in the utility model;
Fig. 3 is a heating panel sketch map in the utility model;
Fig. 4 is the vertical view of Fig. 2.
Among the figure: the power component 5-support column 6-that the circuit board 2-of 1-control circuit applies the heating panel 3-printed circuit 4-heating of copper aluminium base or deposited copper copper base formation connects row's pin 7-MOSFET switching tube 8-equalizing resistance.
Embodiment
The embodiment of the utility model is described with reference to the accompanying drawings.In the embodiment of Fig. 1-shown in Figure 4; A kind of lithium battery group protector comprises the circuit board 1 of control circuit, the heating panel 2 that has at least a deposited copper aluminium base or deposited copper copper base to constitute; Printed circuit 3 is arranged on this heating panel; Be equiped with the power component 4 of the heating in the control circuit on this printed circuit, the control circuit corresponding position is electrically connected in this power component and the aforementioned circuit plate 1, and aforesaid circuit board 1 has being connected of space with described heating panel 2 through support column 5.The power component 4 of the heating in the aforementioned control circuit includes switch mosfet pipe 7 and equalizing resistance 8.Aforementioned power element 4 is connected with printed circuit 3 on the heating panel 2 through SMT paster mode.The power component switch mosfet pipe 7 and the equalizing resistance 8 of the heating in the control circuit all can be attached on the printed circuit 3 of heating panel 2 through the chip mounter dress, and be simple to operate, enhances productivity.Aforementioned power element 4 is through lead or connect that the control circuit corresponding position is electrically connected in row's pin 6 and the aforementioned circuit plate 1.
With the heating power element in the control circuit, like switch mosfet pipe and equalizing resistance, adopt paster technique (SMT) with their Surface Mounts on heating panel; With lead or connect that the control circuit corresponding position is electrically connected in row's pin and the circuit board; Not only can solve because of beating the various hidden danger that screw brings, all heating power elements all directly are fixed on the heating panel that applies copper aluminium base or deposited copper copper base formation simultaneously, and control circuit is placed on another piece circuit board; Heater element and control circuit are realized separately layout like this; Be beneficial to the heat radiation of heater element, reduce temperature rise, improve the performance of the protector that variations in temperature causes.
The foregoing description also only is to be used to explain the utility model, is not the restriction to the utility model, under the design prerequisite of the utility model, to the improvement of the utility model, all belongs to the scope of the utility model claim protection.
Claims (4)
1. lithium battery group protector; The circuit board (1) that comprises control circuit; It is characterized in that having at least the heating panel (2) of a deposited copper aluminium base or deposited copper copper base formation, printed circuit (3) is arranged on this heating panel, be equiped with the power component (4) of the heating in the control circuit on this printed circuit; This power component is electrically connected with the middle control circuit corresponding position of aforementioned circuit plate (1), and aforesaid circuit board (1) has being connected of space with described heating panel (2) through support column (5).
2. lithium battery group protector according to claim 1 is characterized in that the power component (4) of the heating in the aforementioned control circuit includes switch mosfet pipe (7) and equalizing resistance (8).
3. lithium battery group protector according to claim 1 and 2 is characterized in that aforementioned power element (4) is connected with printed circuit (3) on the heating panel (2) through SMT paster mode.
4. lithium battery group protector according to claim 1 and 2 is characterized in that aforementioned power element (4) is through lead or connect that the control circuit corresponding position is electrically connected in row's pin (6) and the aforementioned circuit plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201548062U CN202565575U (en) | 2012-04-13 | 2012-04-13 | Lithium battery pack protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201548062U CN202565575U (en) | 2012-04-13 | 2012-04-13 | Lithium battery pack protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202565575U true CN202565575U (en) | 2012-11-28 |
Family
ID=47215168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201548062U Expired - Fee Related CN202565575U (en) | 2012-04-13 | 2012-04-13 | Lithium battery pack protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202565575U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427756A (en) * | 2013-08-09 | 2013-12-04 | 湖南天富机电科技有限公司 | Vehicle motor controller power module combination mode |
| CN104966854A (en) * | 2015-07-20 | 2015-10-07 | 苏州衡久电池科技有限公司 | Battery pack for two-wheeled vehicle |
| WO2016197567A1 (en) * | 2015-06-12 | 2016-12-15 | 福建南平南孚电池有限公司 | Secondary electrochemical battery sealer body having packaged chip heat dissipation structure and battery |
| CN108327552A (en) * | 2018-01-24 | 2018-07-27 | 深圳天邦达科技有限公司 | A kind of car lithium battery power-supply system |
-
2012
- 2012-04-13 CN CN2012201548062U patent/CN202565575U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427756A (en) * | 2013-08-09 | 2013-12-04 | 湖南天富机电科技有限公司 | Vehicle motor controller power module combination mode |
| WO2016197567A1 (en) * | 2015-06-12 | 2016-12-15 | 福建南平南孚电池有限公司 | Secondary electrochemical battery sealer body having packaged chip heat dissipation structure and battery |
| CN104966854A (en) * | 2015-07-20 | 2015-10-07 | 苏州衡久电池科技有限公司 | Battery pack for two-wheeled vehicle |
| CN108327552A (en) * | 2018-01-24 | 2018-07-27 | 深圳天邦达科技有限公司 | A kind of car lithium battery power-supply system |
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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: 20121128 Termination date: 20180413 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |